CN111130631B - Wave beam self-adaptive selection method and system of satellite terminal in real network environment - Google Patents
Wave beam self-adaptive selection method and system of satellite terminal in real network environment Download PDFInfo
- Publication number
- CN111130631B CN111130631B CN201911422885.3A CN201911422885A CN111130631B CN 111130631 B CN111130631 B CN 111130631B CN 201911422885 A CN201911422885 A CN 201911422885A CN 111130631 B CN111130631 B CN 111130631B
- Authority
- CN
- China
- Prior art keywords
- target
- power value
- service
- carrier
- target beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method and a system for adaptively selecting beams of a satellite terminal in a real network environment, which are applied to the satellite terminal and comprise the following steps: acquiring a downlink signal power value of at least one target beam and acquiring a background noise power value of the at least one target beam, wherein the target beam is a currently available beam of the satellite terminal; calculating the carrier-to-noise ratio of each target beam in at least one target beam based on the downlink signal power value and the background noise power value; and determining beams to be networked to the satellite terminal in at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam. The invention solves the technical problem that no method for adaptively selecting the wave beam under the environment with uplink and downlink interference of the real network exists in the prior art.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a method and a system for adaptively selecting beams of a satellite terminal in a real network environment.
Background
In the current technical background, the satellite terminal is used in many emergency communication scenes. In the case of emergency, and in the scene that the ground signal is not used or not covered, the satellite communication becomes the only communication means which can rely on the communication with the outside. At this time, it is very important to ensure the availability of the basic service of satellite communication; the satellite communication is different from general communication in that, because the distance between a synchronous near-orbit satellite and a ground terminal is about 36000 km, a large space attenuation is generated for signal transmission by a remote distance, and because of the rare degree of a satellite orbit position, the service life of the satellite, which is the energy used by the satellite, and the like, in order to prolong the service life of the satellite as much as possible and save energy, the power of a signal transmitted by the satellite is not too high, and the power value of the signal reaches the ground, which is much lower than that of the signal of the ground communication. Meanwhile, because of the long transmission distance, the signal attenuation of satellite communication for long-distance transmission is as small as possible, the used frequency is relatively high, and the higher the frequency is, the poorer the signal penetrability is.
Therefore, the electromagnetic environment of satellite communication is more demanding than that of other types of wireless communication on the ground in terms of the electromagnetic environment of communication, i.e., the satellite communication is more likely to be affected by interference of uplink and downlink signals of other systems due to the above factors, and is more likely to be interfered by signals in a short distance on the ground. And according to the field measurement of relevant manufacturers, various uplink and downlink interference signals do exist in the areas covered by a plurality of satellite beams, and a considerable part of the interference signals interfere the normal communication between the satellite and the ground terminal. Therefore, a method for selecting an available beam for instant messaging by the terminal according to actual conditions is very necessary. However, in the prior art, there is no method for adaptively selecting beams in an environment with uplink and downlink interference in a real network.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method and a system for adaptively selecting beams of a satellite terminal in a real network environment, so as to alleviate the technical problem that there is no method for adaptively selecting beams in an environment with uplink and downlink interference in a real network in the prior art.
In a first aspect, an embodiment of the present invention provides a method for adaptively selecting a beam of a satellite terminal in a real network environment, which is applied to the satellite terminal, and includes: acquiring a downlink signal power value of at least one target beam and acquiring a background noise power value of the at least one target beam, wherein the target beam is a currently available beam of the satellite terminal; calculating a carrier-to-noise ratio of each target beam of the at least one target beam based on the downlink signal power value and the noise floor power value; and determining a beam to be networked to the satellite terminal in the at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam.
Further, determining a beam to be networked to the satellite terminal in the at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam, includes: acquiring a preset power value; determining a first target beam among the at least one target beam based on the downlink signal power value and the preset power value; the first target beam is a beam of which the downlink signal power value is greater than or equal to a preset power value in the at least one target beam; and determining the beam with the highest carrier-to-noise ratio in the first target beam as the beam to be networked.
Further, determining a beam to be networked to the satellite terminal in the at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam, includes: acquiring a preset carrier-to-noise ratio; determining a second target beam in the at least one target beam based on the carrier-to-noise ratio of each target beam and the preset carrier-to-noise ratio; the second target beam is a beam with a carrier-to-noise ratio greater than or equal to a preset carrier-to-noise ratio in the at least one target beam; and determining the beam with the highest downlink signal power value in the second target beam as the beam to be networked.
Further, determining a beam to be networked to the satellite terminal in the at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam, includes: determining a target service supported by each target wave beam based on the downlink signal power value and the carrier-to-noise ratio of each target wave beam; the target service is a service which can be executed by the satellite terminal through the target wave beam; acquiring a service request of a user; the service request carries service information to be executed by a user; and determining a beam to be networked in the at least one target beam based on the service request and the target service, wherein the target service supported by the beam to be networked comprises a service corresponding to service information to be executed by a user.
Further, after determining a beam to be networked to the satellite terminal, the method further includes: and performing network access resident operation on the beam to be networked so as to enable the beam to be networked to access the satellite terminal.
Further, after the beam to be networked accesses the satellite terminal, the method further includes: acquiring the abnormal connection times of a target service in a preset time period; the target service is a service executed by the satellite terminal through the beam to be accessed to the network; judging whether the abnormal connection times are larger than preset times or not; if so, disconnecting the connection with the beam to be accessed to the network and accessing a third target beam; the third target beam is a beam of the at least one target beam except the beam to be networked.
In a second aspect, an embodiment of the present invention further provides a beam adaptive selection system for a satellite terminal in a real network environment, which is applied to the satellite terminal, and includes: the device comprises an acquisition module, a calculation module and a selection module, wherein the acquisition module is used for acquiring a downlink signal power value of at least one target beam; acquiring a background noise power value of the at least one target beam, wherein the target beam is a currently available beam of the satellite terminal; the calculating module is configured to calculate a carrier-to-noise ratio of each target beam of the at least one target beam based on the downlink signal power value and the noise floor power value; and the selection module is configured to determine, based on the downlink signal power value and the carrier-to-noise ratio of each target beam, a beam to be networked to the satellite terminal in the at least one target beam.
Further, the selection module comprises: the first selection unit is configured to acquire a preset power value, determine a first target beam among the at least one target beam based on the downlink signal power value and the preset power value, and determine a beam with a highest carrier-to-noise ratio among the first target beam as the beam to be networked; the first target beam is a beam of which the downlink signal power value is greater than or equal to a preset power value in the at least one target beam; the second selecting unit is configured to obtain a preset carrier-to-noise ratio, determine a second target beam in the at least one target beam based on the carrier-to-noise ratio of each target beam and the preset carrier-to-noise ratio, and determine a beam with a highest downlink signal power value in the second target beam as the beam to be networked; the second target beam is a beam with a carrier-to-noise ratio greater than or equal to a preset carrier-to-noise ratio in the at least one target beam; the third selecting unit is configured to determine, based on the downlink signal power value and the carrier-to-noise ratio of each target beam, a target service supported by each target beam; the target service is a service which can be executed by the satellite terminal through the target wave beam; acquiring a service request of a user; the service request carries service information to be executed by a user; and determining a beam to be networked in the at least one target beam based on the service request and the target service, wherein the target service supported by the beam to be networked comprises a service corresponding to service information to be executed by a user.
Further, the system further comprises: and the network access module is used for performing network access resident operation on the beam to be accessed to the network so as to enable the beam to be accessed to the satellite terminal.
Further, the system further comprises: a beam detection module to: acquiring the abnormal connection times of a target service in a preset time period; the target service is a service executed by the satellite terminal through the beam to be accessed to the network; judging whether the abnormal connection times are larger than preset times or not; if so, disconnecting the connection with the beam to be accessed to the network and accessing a third target beam; the third target beam is a beam of the at least one target beam except the beam to be networked.
The embodiment of the invention has the following beneficial effects: the method comprises the steps of firstly obtaining downlink signal power values and background noise power values of a plurality of target beams, then respectively calculating the carrier-to-noise ratio of each target beam, and finally determining beams to be networked in the plurality of target beams based on the downlink signal power values and the carrier-to-noise ratios. The invention determines the mode of the beam to be accessed to the network by comprehensively judging the downlink signal power value and the carrier-to-noise ratio of the beam, can select the self-adaptive beam in the environment of uplink and downlink interference of a real network, and meets the requirement of a user on normally using a satellite terminal to carry out basic communication under the condition of signal interference.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a method for adaptively selecting beams of a satellite terminal in a real network environment according to an embodiment of the present invention;
fig. 2 is a flowchart of another method for adaptively selecting beams of a satellite terminal in a real network environment according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a beam adaptive selection system of a first satellite terminal in a real network environment according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a beam adaptive selection system of a second satellite terminal in a real network environment according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a beam adaptive selection system of a third satellite terminal in a real network environment according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
fig. 1 is a flowchart of a method for adaptively selecting beams of a satellite terminal in a real network environment, which is applied to the satellite terminal according to an embodiment of the present invention. As shown in fig. 1, the method specifically includes the following steps:
step S102, a downlink signal power value of at least one target wave beam and a background noise power value of at least one target wave beam are obtained, wherein the target wave beam is a current available wave beam of the satellite terminal.
And step S104, calculating the carrier-to-noise ratio of each target beam in at least one target beam based on the downlink signal power value and the background noise power value.
Carrier-to-noise ratio is a standard measurement scale used to indicate the carrier-to-carrier noise relationship, commonly referred to as CNR or C/n (db). A high carrier to noise ratio may provide better network reception rates, better network communication quality, and better network reliability. In the carrier-to-noise ratio, the power of the carrier is represented by Pc, and the power of the noise is represented by Pn. The decibel unit formula for the carrier to noise ratio is then expressed as: C/N is 10lg (Pc/Pn). In the embodiment of the invention, the power of the carrier is the power value of the downlink signal, and the power of the noise is the power value of the background noise.
And S106, determining a beam to be connected to the satellite terminal to be accessed to the network in at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam.
The invention provides a wave beam self-adaptive selection method of a satellite terminal in a real network environment, which comprises the steps of firstly obtaining downlink signal power values and background noise power values of a plurality of target wave beams, then respectively calculating the carrier-to-noise ratio of each target wave beam, and finally determining wave beams to be accessed to the network in the plurality of target wave beams based on the downlink signal power values and the carrier-to-noise ratios. The invention determines the mode of the beam to be accessed to the network by comprehensively judging the downlink signal power value and the carrier-to-noise ratio of the beam, can select the self-adaptive beam in the environment of uplink and downlink interference of a real network, and meets the requirement of a user on normally using a satellite terminal to carry out basic communication under the condition of signal interference.
In the embodiment of the present invention, the determination of the beam to be networked in step S106 may be implemented by the following three specific implementations.
The first embodiment is as follows:
firstly, acquiring a preset power value; then, determining a first target beam in at least one target beam based on the downlink signal power value and a preset power value; specifically, the first target beam is a beam of which the downlink signal power value is greater than or equal to a preset power value in at least one target beam; and finally, determining the beam with the highest carrier-to-noise ratio in the first target beam as the beam to be networked.
In a first embodiment, a threshold (i.e., a preset power value) is set for a downlink signal power value, a target beam is preliminarily screened, a beam with a downlink signal power value higher than the threshold is obtained as a first target beam, then the first target beam is ranked according to a carrier-to-noise ratio from high to low, a first ranking list is obtained, and a beam with the highest carrier-to-noise ratio in the first target beam is determined as a beam to be networked.
The second embodiment is as follows:
firstly, acquiring a preset carrier-to-noise ratio; then, determining a second target beam in at least one target beam based on the carrier-to-noise ratio of each target beam and a preset carrier-to-noise ratio; specifically, the second target beam is a beam with a carrier-to-noise ratio greater than or equal to a preset carrier-to-noise ratio in at least one target beam; and finally, determining the beam with the highest downlink signal power value in the second target beam as the beam to be networked.
In the second embodiment, another threshold (that is, a preset carrier-to-noise ratio) is set for the carrier-to-noise ratio, the target beams are primarily screened to obtain beams with the carrier-to-noise ratio higher than the threshold as second target beams, then the second target beams are arranged according to the downlink signal power value from high to low to obtain a second ordered list, and the beam with the highest downlink signal power value in the second target beams is determined as the beam to be networked.
In the embodiment of the invention, the two modes can realize the comprehensive judgment of the downlink signal power value and the carrier-to-noise ratio of the target beam, and the target beam with the highest comprehensive performance of the downlink signal power value and the carrier-to-noise ratio is the beam to be accessed to the network, so that the beam quality accessed to the satellite terminal is the highest beam which can be acquired by the satellite terminal at present. By the method, the requirement that the user normally uses the satellite terminal to carry out basic communication under the condition of signal interference can be met.
Optionally, when the actual network environment is severe, and the comprehensive performance of the downlink signal power value and the carrier-to-noise ratio of the at least one target beam cannot meet the requirement of the satellite terminal for normal communication, the beam to be networked may be determined in a third manner.
The third concrete implementation mode:
firstly, determining a target service supported by each target wave beam based on a downlink signal power value and a carrier-to-noise ratio of each target wave beam; the target service is a service which can be executed by the satellite terminal through a target beam; specifically, the target service supported by each target beam is determined according to the downlink signal power value of each target beam, the carrier-to-noise ratio of each target beam, and the downlink signal power value range or the carrier-to-noise ratio range required by each target service. For example, the target services may include an access service, a telephone service, a short message service, a narrowband packet domain service, and a wideband packet domain service, and the downlink signal power value range or the carrier-to-noise ratio range required for each of the different target services is different, based on which, the downlink signal power value of each satellite terminal and the carrier-to-noise ratio of each target beam, the target service supported by each target beam may be determined, and those services may be affected for the target terminal. Wherein each target beam may support multiple target services.
Then acquiring a service request of a user; the service request carries service information to be executed by a user; namely, the service information which the user needs to execute most is obtained.
And finally, determining a beam to be accessed to the network in at least one target beam based on the service request and the target service, wherein the target service supported by the beam to be accessed to the network comprises a service corresponding to the service information to be executed by the user.
In the third embodiment, when the actual network environment is severe and the comprehensive performance of the downlink signal power value and the carrier-to-noise ratio of the at least one target beam cannot meet the requirement of the satellite terminal for normal communication, a part of services that can be executed by each target beam can be determined according to the downlink signal power value and the carrier-to-noise ratio, and then a part of service list is sent to the user, and the user can select a beam from the services that the user needs to execute, or can obtain the service requirement of the user through the satellite terminal, and then adaptively select a beam to be networked.
Optionally, in the embodiment of the present invention, after determining the beam to be networked, the beam to be networked may be accessed to the satellite terminal, and specifically, the beam to be networked performs a network entry camping operation, so that the beam to be networked is accessed to the satellite terminal.
Optionally, after the beam to be networked is accessed to the satellite terminal, the method provided by the embodiment of the present invention further includes detecting the quality of the beam, and making a corresponding adjustment according to the detection result.
Specifically, firstly, acquiring the abnormal connection times of a target service in a preset time period; the target service is a service executed by the satellite terminal through a beam to be accessed to the network.
Then judging whether the abnormal connection times are larger than the preset times or not; if so, disconnecting the connection with the beam to be accessed to the network and accessing a third target beam; the third target beam is a beam of the at least one target beam except the beam to be networked.
For example, within a preset time period, if the number of times of connection interruption (i.e., abnormal connection) of a service used by a user is greater than 2 times, the connection with a beam to be accessed to the network is disconnected, and a third target beam is selected for network access camping. Optionally, a third target beam may be selected by using the first sorted list or the second sorted list in the first embodiment or the second embodiment, and a beam below a beam to be networked in the sorted list is determined as the third target beam.
Optionally, if it is determined that the number of abnormal connections of the target service in the preset time period is greater than the preset number, after the connection with the beam to be networked is disconnected, the beam to be networked is also listed in a forbidden list to mark the beam to be networked as an unavailable beam. Optionally, after the satellite terminal is powered down, the beams added to the forbidden list are deleted from the forbidden list.
Optionally, if it is determined that all target beams are listed in the forbidden list, deleting all target beams in the forbidden list from the forbidden list again to remove the mark that the target beams are unavailable, popping up an interface to prompt a user, and then performing the self-adaptive selection operation on the target beams again.
As can be seen from the above description, the beam adaptive selection method for the satellite terminal in the real network environment according to the embodiment of the present invention can solve the problem that most of satellite terminals in a certain place cannot be used normally due to actual factors of signal interference; and based on the comprehensive analysis and judgment of the test signal and the service flow, the satellite terminal is independently controlled and completed through software without manual completion of a user, if no available beam exists at present, the satellite terminal equipment pops up an interface to prompt the user, and the operability and the friendliness of the user are greatly improved.
In addition, the method does not influence the network access of the normal available beam and the use of the basic service, does not influence the network access time under the normal condition, simultaneously obtains the service requirement of the user through the satellite terminal when the effective signal measurement is completed but the basic service is abnormal, and then adaptively selects the beam to be accessed to the network, and does not influence the use under the normal condition.
Example two:
fig. 2 is a flowchart of another method for adaptively selecting beams of a satellite terminal in a real network environment, which is provided by an embodiment of the invention and is applied to the satellite terminal. As shown in fig. 2, the method specifically includes the following steps:
step S201, the terminal is powered on, and beam scanning and beam power measurement are carried out after the SIM card is successfully inquired.
In step S202, the terminal measures the downlink effective signal power (i.e. the downlink signal power value in the first embodiment) and the background noise (i.e. the power value of the background noise in the first embodiment) of the scanned beam.
Step S203, performs carrier-to-noise ratio calculation and screening on the scanned beams, and stores the available beams (i.e., the target beams in the first embodiment) in a list.
Step S204, select the first beam (i.e. the beam to be networked in the first embodiment) from the list for beam camping.
Step S205, judging whether the beam selected in step S204 is successfully resided, if yes, executing step S206; if not, step S208 is performed.
And step S206, the user uses the service according to the actual requirement.
Step S207, determining whether the basic service usage requirement of the user can be met. If not, step S208 is performed.
Step S208, the wave beam is temporarily forbidden, whether an unreserved wave beam exists is judged, and if yes, the step S204 is returned to; if not, step S209 is performed.
Step S209, reporting the beam state supporting part of the services in the list to the user through the interface.
Step S210, judging whether the user selects the beam resided in the list, if so, returning to the step S206; if not, step S211 is executed.
Specifically, if the current locally stored beam cannot guarantee the basic service, the user is prompted that all beams in the current area environment cannot be used normally, and the user is prompted to select whether to search for the network again or manually select the beam according to actual service requirements by popping up a frame.
In step S211, the terminal disables all the disabled beams, performs frequency sweep search again, and returns to step S202.
Optionally, after the user powers off the mobile phone, all the prohibited beams are also prohibited, so as to prevent the occurrence of misjudgment situations caused by special situations such as user misoperation or current mobile terminal passing through a cave.
Example three:
fig. 3 is a schematic diagram of a first beam adaptive selection system of a satellite terminal in a real network environment, which is applied to the satellite terminal according to an embodiment of the present invention. As shown in fig. 3, the system includes: an acquisition module 10, a calculation module 20 and a selection module 30.
Specifically, the obtaining module 10 is configured to obtain a downlink signal power value of at least one target beam; and acquiring a background noise power value of at least one target beam, wherein the target beam is a current available beam of the satellite terminal.
And a calculating module 20, configured to calculate a carrier-to-noise ratio of each target beam of the at least one target beam based on the downlink signal power value and the noise floor power value.
And the selection module 30 is configured to determine a beam to be networked to the satellite terminal in at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam.
The invention provides a beam self-adaptive selection system of a satellite terminal in a real network environment, which is characterized in that an acquisition module is used for acquiring downlink signal power values and background noise power values of a plurality of target beams, a calculation module is used for calculating the carrier-to-noise ratio of each target beam, and finally a selection module is used for determining beams to be accessed to the network in the plurality of target beams based on the downlink signal power values and the carrier-to-noise ratios. The invention determines the mode of the beam to be accessed to the network by comprehensively judging the downlink signal power value and the carrier-to-noise ratio of the beam, can select the self-adaptive beam in the environment of uplink and downlink interference of a real network, and meets the requirement of a user on normally using a satellite terminal to carry out basic communication under the condition of signal interference.
Optionally, fig. 4 is a schematic diagram of a beam adaptive selection system of a second satellite terminal in a real network environment according to an embodiment of the present invention. As shown in fig. 4, the selection module 30 includes: a first selection unit 31, a second selection unit 32 and a third selection unit 33.
Specifically, the first selecting unit 31 is configured to obtain a preset power value, determine a first target beam among the at least one target beam based on the downlink signal power value and the preset power value, and determine a beam with a highest carrier-to-noise ratio among the first target beam as a beam to be networked; the first target beam is a beam of which the downlink signal power value is greater than or equal to a preset power value in at least one target beam.
A second selecting unit 32, configured to obtain a preset carrier-to-noise ratio, determine a second target beam in at least one target beam based on the carrier-to-noise ratio of each target beam and the preset carrier-to-noise ratio, and determine a beam with a highest downlink signal power value in the second target beam as a beam to be networked; the second target beam is a beam with a carrier-to-noise ratio greater than or equal to a preset carrier-to-noise ratio in at least one target beam.
A third selecting unit 33, configured to determine, based on the downlink signal power value and the carrier-to-noise ratio of each target beam, a target service supported by each target beam; the target service is a service which can be executed by the satellite terminal through a target beam; acquiring a service request of a user; the service request carries service information to be executed by a user; and determining a beam to be accessed to the network in at least one target beam based on the service request and the target service, wherein the target service supported by the beam to be accessed to the network comprises a service corresponding to the service information to be executed by the user.
Optionally, as shown in fig. 4, the system further includes: and the network access module 40 is configured to perform network access residence operation on the beam to be networked, so that the beam to be networked accesses the satellite terminal.
Optionally, as shown in fig. 4, the system further includes: a beam detection module 50 for: acquiring the abnormal connection times of a target service in a preset time period; the target service is a service executed by the satellite terminal through a beam to be accessed to the network; judging whether the abnormal connection times are greater than preset times or not; if so, disconnecting the connection with the beam to be accessed to the network and accessing a third target beam; the third target beam is a beam of the at least one target beam except the beam to be networked.
Example four:
fig. 5 is a schematic diagram of a third satellite terminal beam adaptive selection system in a real network environment according to an embodiment of the present invention. As shown in fig. 5, the system includes: a satellite terminal beam signal measuring module 51, a satellite terminal available beam information collecting module 52, a satellite terminal beam power judging module 53, a satellite terminal beam residing module 54, a satellite terminal beam service selecting module 55 and an available beam state user prompting module 56.
Specifically, the satellite terminal beam signal measurement module 51 is configured to, after a user powers on the satellite terminal, automatically search a currently available beam when the terminal detects that the SIM card and other software and hardware devices are normal, perform power sequencing on the searched beam, and start receiving broadcast information of a beam with the strongest power, according to a cellular structure of the satellite beam, the terminal may further measure downlink signal values (i.e., downlink signal power values in the first embodiment) and downlink background noise values (i.e., background noise power values in the first embodiment) of all surrounding beams, and then perform reasonable value analysis on the measured data, and deliver the measured data to the satellite terminal available beam information collection module 52.
A satellite terminal usable beam information gathering module 52 for: after receiving the downlink signal information value of the current available wave beam through the interface, calculating the downlink signal carrier-to-noise ratio of each wave beam according to the absolute power value, the bottom noise value and the like of the effective signal, comprehensively sequencing the data, storing the data into a local information table, judging the wave beam state by a satellite terminal wave beam judgment program according to the timely requirement, the carrier-to-noise ratio, the effective signal and other actual values, transmitting new data by a measurement program once the state is changed, timely sequencing the collection program, and storing and updating a data list.
The satellite terminal beam power determination module 53 includes a comprehensive algorithm program, and the satellite terminal beam power determination module 53 mainly functions to calculate the carrier-to-noise ratio of each beam according to the measured and preliminarily screened power reasonable range value and the reasonable range value of the background noise, and to calculate various basic flows, such as network access, telephone call, short message, narrowband packet domain service, absolute power and carrier-to-noise ratio required by broadband packet domain service, and then to perform differential comparison, preliminarily determine whether the beam is available for basic service, which services may be affected from the power perspective, and the like, according to the typical value of the measured data.
A satellite terminal beam residing module 54, configured to, after the satellite terminal beam power is determined, automatically select a first beam in the storage list for residing and accessing, and query the access state, assuming that the beam is successfully resided, store the state of the currently residing beam, and if the access is unsuccessful, the beam residing program will add the access failure to the forbidden list; if all beams do not satisfy the dwell condition, the forbidden list is completely released from the frequency sweep and the downstream signal values of the beams are measured again.
And the satellite terminal beam service selection module 55 is configured to perform state storage and judgment according to the operation of the user after the satellite terminal accesses the network, and continue to use the beam if the beam currently resided by the terminal can meet the use requirement of the current service of the user. If the service used by the user is interrupted, the abnormality is continuously more than 2 times, or the service requirement of the used service is not satisfied at all, for example, the large-bandwidth packet domain service, the resident beam has no packet domain service signal or the terminal cannot apply for the service resource for 2 times continuously, the satellite terminal beam service selection program will add the resident beam into the forbidden list, select the next beam in the available beam list for residing, if all the beams do not satisfy the use requirement of the user, the saved available service state of the beams is reported to the available beam state user prompt module 56, and the saved available service state of the beams is displayed to the user through the interface.
And the available beam state user prompting module 56 is configured to, after the beam measurement program and the selection program are finished, report a state of a beam that can be resided before to a user through a human-computer interface under the condition that the currently resided beam is updated without a state and no beam can meet a service use requirement of a user, where the state includes whether the beam can be resided, whether a voice service or a large-bandwidth packet domain service is supported, and the like, and guide the user to find a currently available service mode according to the state of the current beam to meet the current use requirement.
As can be seen from the above description, the beam adaptive selection system of the satellite terminal provided in the embodiment of the present invention in the real network environment enables the satellite terminal to provide a strong support for the field requirements of the user in some regions where the communication environment is not good or part of the services are not supported, and the system implements automatic search and selection of the whole process of the program, which is a breakthrough in the aspects of operability and friendliness of the user, and in the user option, the user can select to turn off the system according to the actual situation. According to the practical situation, the purposes of simplicity, convenience, customization, flexibility and the like are achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A method for adaptively selecting beams of a satellite terminal in a real network environment is characterized by being applied to the satellite terminal and comprising the following steps:
acquiring a downlink signal power value of at least one target beam and acquiring a background noise power value of the at least one target beam, wherein the target beam is a currently available beam of the satellite terminal;
calculating a carrier-to-noise ratio of each target beam of the at least one target beam based on the downlink signal power value and the noise floor power value;
determining a beam to be networked to the satellite terminal in the at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam;
determining a beam to be networked to the satellite terminal in the at least one target beam based on the downlink signal power value and the carrier-to-noise ratio of each target beam, wherein the method comprises the following steps:
acquiring a preset power value; determining a first target beam among the at least one target beam based on the downlink signal power value and the preset power value; the first target beam is a beam of which the downlink signal power value is greater than or equal to a preset power value in the at least one target beam; determining the beam with the highest carrier-to-noise ratio in the first target beam as the beam to be networked;
acquiring a preset carrier-to-noise ratio; determining a second target beam in the at least one target beam based on the carrier-to-noise ratio of each target beam and the preset carrier-to-noise ratio; the second target beam is a beam with a carrier-to-noise ratio greater than or equal to a preset carrier-to-noise ratio in the at least one target beam; determining the beam with the highest downlink signal power value in the second target beam as the beam to be networked;
determining a target service supported by each target wave beam based on the downlink signal power value and the carrier-to-noise ratio of each target wave beam; the target service is a service which can be executed by the satellite terminal through the target wave beam;
acquiring a service request of a user; the service request carries service information to be executed by a user;
and determining a beam to be networked in the at least one target beam based on the service request and the target service, wherein the target service supported by the beam to be networked comprises a service corresponding to service information to be executed by a user.
2. The method of claim 1, wherein after determining the beam to be networked to the satellite terminal, the method further comprises:
and performing network access resident operation on the beam to be networked so as to enable the beam to be networked to access the satellite terminal.
3. The method of claim 2, wherein after the beam to be networked accesses the satellite terminal, the method further comprises:
acquiring the abnormal connection times of a target service in a preset time period; the target service is a service executed by the satellite terminal through the beam to be accessed to the network;
judging whether the abnormal connection times are larger than preset times or not;
if so, disconnecting the connection with the beam to be accessed to the network and accessing a third target beam; the third target beam is a beam of the at least one target beam except the beam to be networked.
4. A system for adaptively selecting beams of a satellite terminal in a real network environment is applied to the satellite terminal and comprises the following components: an acquisition module, a calculation module and a selection module, wherein,
the acquisition module is configured to acquire a downlink signal power value of at least one target beam, and acquire a background noise power value of the at least one target beam, where the target beam is a currently available beam of the satellite terminal;
the calculating module is configured to calculate a carrier-to-noise ratio of each target beam of the at least one target beam based on the downlink signal power value and the noise floor power value;
the selection module is configured to determine, based on the downlink signal power value and the carrier-to-noise ratio of each target beam, a beam to be networked to the satellite terminal in the at least one target beam;
the selection module comprises: a first selection unit, a second selection unit and a third selection unit, wherein,
the first selecting unit is configured to obtain a preset power value, determine a first target beam among the at least one target beam based on the downlink signal power value and the preset power value, and determine a beam with a highest carrier-to-noise ratio among the first target beam as the beam to be networked; the first target beam is a beam of which the downlink signal power value is greater than or equal to a preset power value in the at least one target beam;
the second selecting unit is configured to obtain a preset carrier-to-noise ratio, determine a second target beam in the at least one target beam based on the carrier-to-noise ratio of each target beam and the preset carrier-to-noise ratio, and determine a beam with a highest downlink signal power value in the second target beam as the beam to be networked; the second target beam is a beam with a carrier-to-noise ratio greater than or equal to a preset carrier-to-noise ratio in the at least one target beam;
the third selecting unit is configured to determine, based on the downlink signal power value and the carrier-to-noise ratio of each target beam, a target service supported by each target beam; the target service is a service which can be executed by the satellite terminal through the target wave beam; acquiring a service request of a user; the service request carries service information to be executed by a user; and determining a beam to be networked in the at least one target beam based on the service request and the target service, wherein the target service supported by the beam to be networked comprises a service corresponding to service information to be executed by a user.
5. The system of claim 4, further comprising: and the network access module is used for performing network access resident operation on the beam to be accessed to the network so as to enable the beam to be accessed to the satellite terminal.
6. The system of claim 5, further comprising: a beam detection module to:
acquiring the abnormal connection times of a target service in a preset time period; the target service is a service executed by the satellite terminal through the beam to be accessed to the network;
judging whether the abnormal connection times are larger than preset times or not;
if so, disconnecting the connection with the beam to be accessed to the network and accessing a third target beam; the third target beam is a beam of the at least one target beam except the beam to be networked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422885.3A CN111130631B (en) | 2019-12-30 | 2019-12-30 | Wave beam self-adaptive selection method and system of satellite terminal in real network environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422885.3A CN111130631B (en) | 2019-12-30 | 2019-12-30 | Wave beam self-adaptive selection method and system of satellite terminal in real network environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111130631A CN111130631A (en) | 2020-05-08 |
| CN111130631B true CN111130631B (en) | 2022-08-02 |
Family
ID=70507869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911422885.3A Active CN111130631B (en) | 2019-12-30 | 2019-12-30 | Wave beam self-adaptive selection method and system of satellite terminal in real network environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111130631B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917451B (en) * | 2020-07-10 | 2022-09-06 | 华力智芯(成都)集成电路有限公司 | Data transmission method and device, satellite module and storage medium |
| CN117767993A (en) * | 2022-09-16 | 2024-03-26 | 华为技术有限公司 | Communication method and communication device of satellite communication system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6417803B1 (en) * | 2001-04-03 | 2002-07-09 | The Boeing Company | Beam alignment system and method for an antenna |
| CN1519984A (en) * | 2003-01-22 | 2004-08-11 | �ձ�������ʽ���� | Directional antenna control device, its beam selection method and program |
| CN1599990A (en) * | 2001-12-06 | 2005-03-23 | 波音公司 | Method and apparatus using transmit sequential lobing for identifying an interfering mobile terminal |
| CN106797239A (en) * | 2014-10-07 | 2017-05-31 | 联发科技股份有限公司 | The wave beam management method of cell/wireless network |
| CN106793108A (en) * | 2016-11-18 | 2017-05-31 | 北京工业大学 | Federated user selection and power distribution optimization method in mimo system downlink |
| CN108738143A (en) * | 2017-04-21 | 2018-11-02 | 中国移动通信有限公司研究院 | Method for sending information, wave beam staying method, base station, terminal and storage medium |
| CN109963291A (en) * | 2017-12-26 | 2019-07-02 | 中国移动通信集团广东有限公司 | A kind of method that coverage area adaptively adjusts and base station |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8670717B2 (en) * | 2008-11-27 | 2014-03-11 | Futurewei Technologies, Inc. | System and method for enabling coordinated beam switching and scheduling |
| CN104320831A (en) * | 2014-10-24 | 2015-01-28 | 成都天奥信息科技有限公司 | Satellite terminal network selection and fast network access method and device |
-
2019
- 2019-12-30 CN CN201911422885.3A patent/CN111130631B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6417803B1 (en) * | 2001-04-03 | 2002-07-09 | The Boeing Company | Beam alignment system and method for an antenna |
| CN1599990A (en) * | 2001-12-06 | 2005-03-23 | 波音公司 | Method and apparatus using transmit sequential lobing for identifying an interfering mobile terminal |
| CN1519984A (en) * | 2003-01-22 | 2004-08-11 | �ձ�������ʽ���� | Directional antenna control device, its beam selection method and program |
| CN106797239A (en) * | 2014-10-07 | 2017-05-31 | 联发科技股份有限公司 | The wave beam management method of cell/wireless network |
| CN106793108A (en) * | 2016-11-18 | 2017-05-31 | 北京工业大学 | Federated user selection and power distribution optimization method in mimo system downlink |
| CN108738143A (en) * | 2017-04-21 | 2018-11-02 | 中国移动通信有限公司研究院 | Method for sending information, wave beam staying method, base station, terminal and storage medium |
| CN109963291A (en) * | 2017-12-26 | 2019-07-02 | 中国移动通信集团广东有限公司 | A kind of method that coverage area adaptively adjusts and base station |
Non-Patent Citations (1)
| Title |
|---|
| GNSS天线相位中心及其抗干扰技术研究;刘兵;《中国优秀硕士学位论文全文数据库》;20170215(第2期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111130631A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2372752C2 (en) | Improvement of intersystem rechoice of cell from geran network to utran network | |
| CN102474742B (en) | Interference mitigation in a femtocell access point | |
| KR101533852B1 (en) | Transmission of special neighbor cell lists | |
| EP2451084B1 (en) | System and method for reuse of communications spectrum for fixed and mobile applications with efficient method to mitigate interference | |
| JP4663936B2 (en) | Automatic frequency allocation for wireless office equipment sharing spectrum with public systems | |
| US6041236A (en) | Method and apparatus for minimizing the number of samples needed to determine cell area coverage reliability in a radiotelephone system | |
| US7792076B2 (en) | Method and device for automatically allocating channels of wireless network system | |
| JP2003530756A (en) | Interference detection, identification, extraction, and reporting | |
| KR101512470B1 (en) | Apparatus and method for selecting frequency allocation of femto base station | |
| CN111130631B (en) | Wave beam self-adaptive selection method and system of satellite terminal in real network environment | |
| US20140087727A1 (en) | Method and apparatus for scanning multi-mode wireless communication environments | |
| CN108966242B (en) | Coverage estimation method and device for narrow-band Internet of things | |
| US20090059867A1 (en) | Cell Base Station Neighbor List Self Configuration | |
| JP2003244754A (en) | Base station and communication method | |
| US6138024A (en) | Dynamic channel selection in a cellular communication system | |
| WO2012129932A1 (en) | Method for determining detection threshold and sensing node device | |
| US20160007358A1 (en) | Wireless communication system and wireless communication method | |
| US6697626B1 (en) | Using channel loading statistics to determine whether to search for a new channel in a wireless communication system | |
| CN110708732A (en) | Method and terminal for dynamically self-adapting network switching | |
| EP0919102B1 (en) | Method of assigning cellular radio service to a radio unit in a fixed cellular radio system | |
| US9119177B2 (en) | Radio base station and method for selecting frequency band of radio base station | |
| CN112566012B (en) | Terminal feature acquisition method and device, server and storage medium | |
| CN111225383B (en) | Method and device for testing NB-IoT terminal | |
| CN114079905A (en) | Roaming returning method, device and terminal | |
| KR101470407B1 (en) | Lte rf monitoring apparatus and the system by using the same and the monitoring method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |