CN107105437B - Method and device for detecting wired and wireless satellite converged network - Google Patents
Method and device for detecting wired and wireless satellite converged network Download PDFInfo
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- CN107105437B CN107105437B CN201710252757.3A CN201710252757A CN107105437B CN 107105437 B CN107105437 B CN 107105437B CN 201710252757 A CN201710252757 A CN 201710252757A CN 107105437 B CN107105437 B CN 107105437B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
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Abstract
The invention provides a method and a device for detecting a cable wireless satellite convergence network, wherein the method comprises the following steps: acquiring position information of a set top box and a detection result of a wireless bidirectional network detected by the set top box; judging whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network according to the detection result; under the condition that a broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network, determining an interference base station to which the wireless bidirectional network belongs according to the position information of the set top box and the detection result; and adjusting the signal use frequency band or the transmitting power of the wireless bidirectional network of the interference base station to avoid the interference of the wireless bidirectional network of the interference base station on the broadcast television network to which the set top box belongs. The invention enables the wireless bidirectional network and the broadcast television network to better share the frequency spectrum resources.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a device for detecting a wired and wireless satellite converged network.
Background
A conventional spectrum sensing and authorization system, such as an LSA (Licensed Shared Access) system, as shown in fig. 1, includes: regulatory agencies, master users, LSA databases, LSA controllers, and operators. Wherein the operator comprises an authorized base station. The LSA database and the spectrum sensing of the licensed base station together determine the ultimate usage of spectrum resources by the licensed base station. In the prior art, the spectrum sensing and measuring module is mainly arranged in authorized base stations, but when a network is planned, a certain inter-station distance exists between the authorized base stations, and the measurement of the spectrum by the authorized base stations cannot really reflect the interference condition of the user terminal in the coverage range of the authorized base stations. The spectrum sensing and measuring module can also be arranged in the user terminal, but because the user terminal has mobility, the LSA database is difficult to acquire the position of the user terminal in real time, which is not beneficial to judging the interference condition of a specific area. Furthermore, in the prior art, only the measurement of the spectrum by the licensed base station is considered, and only the interference of the licensed base station by the primary user (e.g., a broadcast television network) is considered, and the interference of the primary user by the licensed base station and the interference among the primary users are not considered.
With the development of wireless communication technology, a wired and wireless satellite converged network becomes a future development direction. The design of the cable wireless satellite convergence network is that on the basis of a wireless bidirectional network, a cable television network, a ground digital broadcast television network, a satellite broadcast network and a radio and television self-adaptive WiFi wireless network are organically combined to form an intercommunicated transmission channel. In the cable wireless satellite convergence network, wireless bidirectional networks all adopt a wireless mode and need to occupy the frequency band of a ground digital broadcast television network, so how to reasonably distribute the frequency spectrum resources of the cable wireless satellite convergence network becomes an important research direction.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method and a device for detecting a cable wireless satellite convergence network, so that spectrum resources can be better shared between a wireless bidirectional network and a broadcast television network.
The technical scheme adopted by the invention is that the method for detecting the cable and wireless satellite converged network comprises the following steps:
acquiring position information of a set top box and a detection result of a wireless bidirectional network detected by the set top box;
judging whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network according to the detection result;
under the condition that a broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network, determining an interference base station to which the wireless bidirectional network belongs according to the position information of the set top box and the detection result;
and adjusting the signal use frequency band or the transmitting power of the wireless bidirectional network of the interference base station to avoid the interference of the wireless bidirectional network of the interference base station on the broadcast television network to which the set top box belongs.
Further, the detection result includes: network signal system, signal use frequency band and transmitting power.
Further, the determining, according to the detection result, whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network includes:
and if the signal use frequency band in the detection result is coincident with the signal use frequency band of the broadcast television network to which the set top box belongs, and the transmission power in the detection result is greater than a preset threshold value, judging that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network.
Further, the method further comprises:
when the broadcast television network to which the set top box belongs is suspended, acquiring signal use frequency bands of other broadcast television networks detected by the set top box;
judging whether the signal use frequency bands of the other broadcast television networks are the same as the signal use frequency band of the broadcast television network to which the set top box belongs, if so, judging that the set top box is interfered by the other broadcast television networks;
under the condition that the set top box is interfered by other broadcast television networks, determining an interference broadcast television tower to which the other broadcast television networks belong according to the signal use frequency bands of the other broadcast television networks and the position information of the set top box;
and adjusting the signal use frequency band of the broadcast television network of the interference broadcast television tower so as to avoid the interference of the broadcast television network of the interference broadcast television tower on the broadcast television network to which the set top box belongs.
Further, the method further comprises:
acquiring position information of each set top box in a set range and a signal use frequency band of a broadcast television network detected by each set top box;
drawing a signal use frequency band rendering graph according to the position information of each set top box and the signal use frequency band of the broadcast television network detected by each set top box;
analyzing and judging whether two broadcasting television networks which interfere with each other exist according to the signal use frequency band rendering graph;
in the case that two broadcast television networks which interfere with each other exist, the signal use frequency bands of the two broadcast television networks are adjusted to avoid the mutual interference between the two broadcast television networks.
The invention also provides a device for detecting the cable wireless satellite convergence network, which comprises:
the system comprises an acquisition module, a detection module and a control module, wherein the acquisition module is used for acquiring the position information of a set top box and the detection result of a wireless bidirectional network detected by the set top box;
the judging module is used for judging whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network according to the detection result;
the determining module is used for determining an interference base station to which the wireless bidirectional network belongs according to the position information of the set top box and the detection result under the condition that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network;
and the adjusting module is used for adjusting the signal use frequency band or the transmitting power of the wireless bidirectional network of the interference base station so as to avoid the interference of the wireless bidirectional network of the interference base station on the broadcast television network to which the set top box belongs.
Further, the detection result includes: network signal system, signal use frequency band and transmitting power.
Further, the determining module is specifically configured to:
and if the signal use frequency band in the detection result is coincident with the signal use frequency band of the broadcast television network to which the set top box belongs, and the transmission power in the detection result is greater than a preset threshold value, judging that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network.
Further, the obtaining module is further configured to obtain, when the broadcast television network to which the set-top box belongs is suspended, a signal use frequency band of another broadcast television network detected by the set-top box;
the judging module is further configured to judge whether the signal use frequency band of the other broadcast television network is the same as the signal use frequency band of the broadcast television network to which the set-top box belongs, and if so, judge that the set-top box is interfered by the other broadcast television network;
the determining module is further configured to determine, when the set-top box is interfered by another broadcast television network, an interfering broadcast television tower to which the another broadcast television network belongs according to the signal use frequency band of the another broadcast television network and the location information of the set-top box;
the adjusting module is further configured to adjust a signal use frequency band of the broadcast television network of the interfering broadcast television tower, so as to avoid an interference segment of the broadcast television network of the interfering broadcast television tower with the broadcast television network to which the set top box belongs.
Further, the acquiring module is further configured to acquire the position information of each set top box within a set range and the signal use frequency band of the broadcast television network detected by each set top box;
the device further comprises:
the drawing module is used for drawing a signal use frequency band rendering graph according to the position information of each set top box and the signal use frequency band of the broadcast television network detected by each set top box;
an analysis module for analyzing and judging whether two broadcasting television networks which interfere with each other exist according to the signal use frequency band rendering graph,
the adjusting module is further configured to adjust the signal use frequency bands of the two broadcast television networks under the condition that there are two broadcast television networks that interfere with each other, so as to avoid the mutual interference between the two broadcast television networks.
By adopting the technical scheme, the invention at least has the following advantages:
the method and the device for detecting the cable wireless satellite convergence network detect the wireless bidirectional network signals and the broadcast television network signals through the set top box, and judge whether the set top box is interfered by the wireless bidirectional network signals of other base stations or the broadcast television network signals of other broadcast television towers according to the position information of the set top box. If the set-top box is found to be interfered by the wireless bidirectional network signals of other base stations, the signal use frequency band or the transmitting power of the wireless bidirectional network signals of the interfering base station is adjusted to avoid the signal interference of the interfering base station to the set-top box. If the set top box is found to be interfered by the broadcast television network signals of other broadcast television towers, the signal use frequency band of the broadcast television network signals of the interfering broadcast television tower is adjusted to avoid the signal interference of the interfering broadcast television tower to the set top box. Compared with the prior art, the invention can sense the interference of other authorized base stations or other broadcast television systems on the broadcast television system, and simultaneously, because the sensing and measuring equipment for detecting the signal frequency spectrum is arranged in each set top box, the signal sensing range is larger, and the detection result is more accurate.
Drawings
Fig. 1 is a schematic structural diagram of a LSA system in the prior art;
FIG. 2 is a flowchart illustrating a method for detecting a converged cable satellite network according to a first embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for detecting a converged cable satellite network according to a second embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for detecting a converged cable satellite network according to a third embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an apparatus for detecting a cable-satellite convergence network according to a fourth embodiment of the present invention;
FIG. 6 is a schematic structural diagram illustrating an apparatus for detecting a cable-satellite convergence network according to a fifth embodiment of the present invention;
FIG. 7 is a schematic structural diagram illustrating an apparatus for detecting a cable-satellite convergence network according to a sixth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a system for detecting a cable-wireless satellite convergence network according to a seventh embodiment of the invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.
A first embodiment of the present invention provides a method for detecting a cable/wireless satellite convergence network, as shown in fig. 2, including the following specific steps:
step S201: the method comprises the steps of obtaining position information of a set top box and a detection result of a wireless two-way network detected by the set top box.
Specifically, the set top box is provided with spectrum sensing and measuring equipment, and the spectrum sensing and measuring equipment can measure signals of the wireless bidirectional network to obtain a detection result of the wireless bidirectional network. The detection result comprises: network signal system, signal use frequency band and transmitting power.
Further, the network signal format of the detection result includes: LTE (Long Term Evolution) signals.
Step S202: and judging whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network according to the detection result.
Specifically, step S202 includes:
and if the signal use frequency band in the detection result is coincident with the signal use frequency band of the broadcast television network to which the set top box belongs, and the transmission power in the detection result is greater than a preset threshold value, judging that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network.
Step S203: and under the condition that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network, determining an interference base station to which the wireless bidirectional network belongs according to the position information of the set top box and the detection result.
Specifically, step S203 includes:
and searching for an interference base station with the same network signal system, signal use frequency band and transmitting power as the detection result in a search area with the set value as a search radius by taking the set top box as a center according to the position information of the set top box. If no interfering base station is found in the search area, the set value may be increased to enlarge the search radius until an interfering base station is found.
Step S204: and adjusting the signal use frequency band or the transmitting power of the wireless bidirectional network of the interference base station to avoid the interference of the wireless bidirectional network of the interference base station on the broadcast television network to which the set top box belongs.
And adjusting the signal use frequency band or the transmitting power of the wireless bidirectional network of the interference base station to ensure that the signal of the wireless bidirectional network of the interference base station does not interfere with the signal of the broadcast television network of the broadcast television tower to which the set top box belongs.
A second embodiment of the present invention provides a method for detecting a cable/wireless satellite convergence network, as shown in fig. 3, including the following specific steps:
step S301: and when the broadcast television network to which the set top box belongs is suspended, acquiring the signal use frequency bands of other broadcast television networks detected by the set top box.
In the embodiment, in order to detect whether the set-top box in the coverage area of one broadcast television tower is interfered by signals of other broadcast television towers, the set-top box in the coverage area of the one broadcast television tower is detected during the suspension of the use of the one broadcast television tower.
Specifically, the set top box is provided with spectrum sensing and measuring equipment, and the spectrum sensing and measuring equipment can measure signal use frequency bands of broadcast television networks of other broadcast television towers.
Step S302: and judging whether the signal use frequency bands of the other broadcast television networks are the same as the signal use frequency band of the broadcast television network to which the set top box belongs, if so, judging that the set top box is interfered by the other broadcast television networks.
And if the set top boxes in the coverage range of the one broadcast television tower receive the same signal use frequency band as the broadcast television network of the one broadcast television tower, the set top boxes in the coverage range of the one broadcast television tower are interfered by the signals of the broadcast television networks of other broadcast television towers.
Step S303: and under the condition that the set top box is interfered by other broadcast television networks, determining an interference broadcast television tower to which the other broadcast television networks belong according to the signal use frequency bands of the other broadcast television networks and the position information of the set top box.
Specifically, step S303 includes:
and according to the position information of the set top box, searching for an interference broadcast television tower which has the same signal use frequency band as the signal use frequency band of the broadcast television network of the broadcast television tower in a search area which takes the set top box as the center and takes the set numerical value as the search radius. If no interfering broadcast television tower is found within the search area, a set value may be increased to enlarge the search radius until an interfering broadcast television tower is found.
Step S304: and adjusting the signal use frequency band of the broadcast television network of the interference broadcast television tower so as to avoid the interference of the broadcast television network of the interference broadcast television tower on the broadcast television network to which the set top box belongs.
And adjusting the signal use frequency band of the broadcast television network of the interference broadcast television tower to ensure that the signal of the broadcast television network of the interference broadcast television tower does not interfere with the signal of the broadcast television network of the broadcast television tower to which the set top box belongs.
In a third embodiment of the present invention, a method for detecting a cable/wireless satellite convergence network, as shown in fig. 4, includes the following specific steps:
step S401: the method comprises the steps of obtaining position information of each set top box in a set range and a signal use frequency band of a broadcast television network detected by each set top box.
Specifically, a spectrum sensing and measuring device is arranged in each set top box, and the spectrum sensing and measuring device can measure the signal use frequency band of the broadcast television network.
Step S402: and drawing a signal use frequency band rendering graph according to the position information of each set top box and the signal use frequency band of the broadcast television network detected by each set top box.
Specifically, step S402 includes:
and determining the position of each set top box in a two-dimensional rendering map based on the position information of each set top box, identifying the signal use frequency band of the broadcast television network detected by each set top box, and identifying the position of the broadcast television tower of each set top box in the rendering map.
Step S403: and analyzing and judging whether two broadcasting television networks which interfere with each other exist according to the signal use frequency band rendering graph.
Specifically, step S403 includes:
and analyzing and judging whether the phenomenon of mutual interference exists between any two adjacent broadcast television towers or not according to the distance relation between the broadcast television towers in the rendering graph and the coverage range of the broadcast television network of each broadcast television tower.
Step S404: in the case that two broadcast television networks which interfere with each other exist, the signal use frequency bands of the two broadcast television networks are adjusted to avoid the mutual interference between the two broadcast television networks.
The signal use frequency bands of the broadcast television networks of the two broadcast television towers which interfere with each other are adjusted, so that the signal use frequency bands of the broadcast television networks of the two broadcast television towers do not interfere with each other any more.
In a fourth embodiment of the present invention, a device for detecting a cable/wireless satellite convergence network, as shown in fig. 5, specifically includes the following components:
an obtaining module 501, configured to obtain location information of a set top box and a detection result of the wireless bidirectional network detected by the set top box.
Specifically, the set top box is provided with spectrum sensing and measuring equipment, and the spectrum sensing and measuring equipment can measure signals of the wireless bidirectional network to obtain a detection result of the wireless bidirectional network. The detection result comprises: network signal system, signal use frequency band and transmitting power.
Further, the network signal format of the detection result includes: LTE (Long Term Evolution) signals.
The determining module 502 is configured to determine whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network according to the detection result.
Specifically, the determining module 502 is configured to:
and if the signal use frequency band in the detection result is coincident with the signal use frequency band of the broadcast television network to which the set top box belongs, and the transmission power in the detection result is greater than a preset threshold value, judging that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network.
A determining module 503, configured to determine, according to the location information of the set top box and the detection result, an interfering base station to which the wireless bidirectional network belongs, when the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network.
Specifically, the determining module 503 is configured to:
and searching for an interference base station with the same network signal system, signal use frequency band and transmitting power as the detection result in a search area with the set value as a search radius by taking the set top box as a center according to the position information of the set top box. If no interfering base station is found in the search area, the set value may be increased to enlarge the search radius until an interfering base station is found.
An adjusting module 504, configured to adjust a signal use frequency band or a transmission power of the wireless bidirectional network of the interfering base station, so as to avoid interference of the wireless bidirectional network of the interfering base station on a broadcast television network to which the set top box belongs.
And adjusting the signal use frequency band or the transmitting power of the wireless bidirectional network of the interference base station to ensure that the signal of the wireless bidirectional network of the interference base station does not interfere with the signal of the broadcast television network of the broadcast television tower to which the set top box belongs.
In a fifth embodiment of the present invention, a device for detecting a cable/wireless satellite convergence network, as shown in fig. 6, specifically includes the following components:
the obtaining module 601 is configured to obtain a signal use frequency band of another broadcast television network detected by the set top box when the broadcast television network to which the set top box belongs is suspended.
In the embodiment, in order to detect whether the set-top box in the coverage area of one broadcast television tower is interfered by signals of other broadcast television towers, the set-top box in the coverage area of the one broadcast television tower is detected during the suspension of the use of the one broadcast television tower.
Specifically, the set top box is provided with spectrum sensing and measuring equipment, and the spectrum sensing and measuring equipment can measure signal use frequency bands of broadcast television networks of other broadcast television towers.
The determining module 602 is configured to determine whether the signal use frequency band of the other broadcast television network is the same as the signal use frequency band of the broadcast television network to which the set-top box belongs, and if so, determine that the set-top box is interfered by the other broadcast television network.
And if the set top boxes in the coverage range of the one broadcast television tower receive the same signal use frequency band as the broadcast television network of the one broadcast television tower, the set top boxes in the coverage range of the one broadcast television tower are interfered by the signals of the broadcast television networks of other broadcast television towers.
The determining module 603 is configured to determine, when the set top box is interfered by another broadcast television network, an interfering broadcast television tower to which the another broadcast television network belongs according to the signal use frequency band of the another broadcast television network and the location information of the set top box.
In particular, the determination module 603 is used for
And according to the position information of the set top box, searching for an interference broadcast television tower which has the same signal use frequency band as the signal use frequency band of the broadcast television network of the broadcast television tower in a search area which takes the set top box as the center and takes the set numerical value as the search radius. If no interfering broadcast television tower is found within the search area, a set value may be increased to enlarge the search radius until an interfering broadcast television tower is found.
The adjusting module 604 is configured to adjust a signal use frequency band of the broadcast television network of the interfering broadcast television tower, so as to avoid interference of the broadcast television network of the interfering broadcast television tower on the broadcast television network to which the set top box belongs.
And adjusting the signal use frequency band of the broadcast television network of the interference broadcast television tower to ensure that the signal of the broadcast television network of the interference broadcast television tower does not interfere with the signal of the broadcast television network of the broadcast television tower to which the set top box belongs.
A sixth embodiment of the present invention provides a device for detecting a cable/wireless satellite convergence network, as shown in fig. 7, which specifically includes the following components:
an obtaining module 701, configured to obtain location information of each set top box within a set range and a signal use frequency band of a broadcast television network detected by each set top box.
Specifically, a spectrum sensing and measuring device is arranged in each set top box, and the spectrum sensing and measuring device can measure the signal use frequency band of the broadcast television network.
A drawing module 702, configured to draw a signal usage frequency band rendering map according to the location information of each set top box and the signal usage frequency band of the broadcast television network detected by each set top box
Specifically, the drawing module 702 is configured to:
and determining the position of each set top box in a two-dimensional rendering map based on the position information of each set top box, identifying the signal use frequency band of the broadcast television network detected by each set top box, and identifying the position of the broadcast television tower of each set top box in the rendering map.
The analyzing module 703 is configured to analyze and determine whether there are two broadcast television networks interfering with each other according to the signal usage frequency band rendering map.
Specifically, the analysis module 703 is configured to:
and analyzing and judging whether the phenomenon of mutual interference exists between any two adjacent broadcast television towers or not according to the distance relation between the broadcast television towers in the rendering graph and the coverage range of the broadcast television network of each broadcast television tower.
An adjusting module 704, configured to, in the presence of two mutually interfering broadcast television networks, adjust a signal usage frequency band of the two broadcast television networks so as to avoid mutual interference between the two broadcast television networks.
The signal use frequency bands of the broadcast television networks of the two broadcast television towers which interfere with each other are adjusted, so that the signal use frequency bands of the broadcast television networks of the two broadcast television towers do not interfere with each other any more.
A seventh embodiment of the present invention provides a system for detecting a cable/wireless satellite convergence network, as shown in fig. 8, which specifically includes the following components: a spectrum authorization platform 10, a spectrum resource management platform 20 and a broadcast television system 30. The spectrum resource management platform 20 includes: a database 201 and a controller 202; the broadcast television system 30 includes: a broadcast television tower 301 and a set-top box 302. Spectrum sensing and measuring equipment is arranged in the broadcast television tower 301 and each set top box 302, and the spectrum sensing and measuring equipment can measure not only the signals of the broadcast television network of the broadcast television tower but also the signals of the wireless two-way network of the authorized base station.
The database 201 stores therein position information and signal use frequency band information of the broadcast tower 301, and position information of the respective set-top boxes 302. The location information of the broadcast tower 301 includes: latitude and longitude information and station height information. The location information of the set-top box 302 may include latitude and longitude information of the set-top box or administrative area information to which the set-top box belongs, such as: a certain province, a certain city and a certain cell.
The spectrum sensing and measuring devices provided in the broadcast tower 301 and the set-top boxes 302 can periodically measure the signals of the broadcast television network or the signals of the wireless two-way network. The spectrum sensing and measuring devices provided in the broadcast tower 301 and the set-top boxes 302 can also trigger measurement of signals of a broadcast television network or signals of a wireless two-way network.
The spectrum sensing and measuring device reports the obtained measurement result to the database 201, where the measurement result includes: network signal system, signal use frequency band and transmitting power.
The database 201 processes the measurement results reported by the spectrum sensing and measuring devices to determine whether the set-top box 302 in the broadcast television system 30 is interfered by signals of the wireless bidirectional networks of other authorized base stations or signals of the broadcast television networks of other broadcast television towers.
Specifically, the database 201 determines whether any set top box is interfered by signals of the wireless bidirectional network of another authorized base station or by signals of the broadcast television networks of other broadcast television towers according to the measurement results reported by each spectrum sensing and measuring device, the stored position information and signal use frequency band information of the broadcast television tower 301, and the position information of each set top box 302.
If the set-top box 302 is interfered by signals of the wireless bidirectional networks of other authorized base stations, the signal use frequency bands or the transmission power of the wireless bidirectional networks of other base stations are adjusted by the controller 202.
If the set-top box 302 is interfered by signals of the broadcast television networks of other broadcast television towers, the signal use frequency bands of the broadcast television networks of other broadcast television towers are adjusted through the controller 202.
The method and the device for detecting the cable wireless satellite convergence network, which are introduced in the embodiment of the invention, detect the wireless bidirectional network signal and the broadcast television network signal through the set top box, and judge whether the set top box is interfered by the wireless bidirectional network signals of other base stations or the broadcast television network signals of other broadcast television towers according to the position information of the set top box. If the set-top box is found to be interfered by the wireless bidirectional network signals of other base stations, the signal use frequency band or the transmitting power of the wireless bidirectional network signals of the interfering base station is adjusted to avoid the signal interference of the interfering base station to the set-top box. If the set top box is found to be interfered by the broadcast television network signals of other broadcast television towers, the signal use frequency band of the broadcast television network signals of the interfering broadcast television tower is adjusted to avoid the signal interference of the interfering broadcast television tower to the set top box. Compared with the prior art, the invention can sense the interference of other authorized base stations or other broadcast television systems on the broadcast television system, and simultaneously, because the sensing and measuring equipment for detecting the signal frequency spectrum is arranged in each set top box, the signal sensing range is larger, and the detection result is more accurate.
While the invention has been described in connection with specific embodiments thereof, it is to be understood that it is intended by the appended drawings and description that the invention may be embodied in other specific forms without departing from the spirit or scope of the invention.
Claims (10)
1. A method for detecting a cable wireless satellite converged network, comprising:
acquiring position information of a set top box and a detection result of a wireless bidirectional network detected by the set top box;
judging whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network according to the detection result;
under the condition that a broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network, determining an interference base station to which the wireless bidirectional network belongs according to the position information of the set top box and the detection result;
adjusting the signal use frequency band or the transmitting power of the wireless bidirectional network of the interference base station to avoid the interference of the wireless bidirectional network of the interference base station on the broadcast television network to which the set top box belongs;
when the broadcast television network to which the set top box belongs is suspended, acquiring signal use frequency bands of other broadcast television networks detected by the set top box;
and judging whether the signal use frequency bands of the other broadcast television networks are the same as the signal use frequency band of the broadcast television network to which the set top box belongs, if so, judging that the set top box is interfered by the other broadcast television networks.
2. The method for detecting the cable wireless satellite converged network according to claim 1, wherein the detection result comprises: network signal system, signal use frequency band and transmitting power.
3. The method for detecting a cable-wireless satellite convergence network according to claim 2, wherein the determining whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network according to the detection result comprises:
and if the signal use frequency band in the detection result is coincident with the signal use frequency band of the broadcast television network to which the set top box belongs, and the transmission power in the detection result is greater than a preset threshold value, judging that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network.
4. The method for detecting a cable-wireless satellite converged network according to claim 1, wherein the method further comprises:
under the condition that the set top box is interfered by other broadcast television networks, determining an interference broadcast television tower to which the other broadcast television networks belong according to the signal use frequency bands of the other broadcast television networks and the position information of the set top box;
and adjusting the signal use frequency band of the broadcast television network of the interference broadcast television tower so as to avoid the interference of the broadcast television network of the interference broadcast television tower on the broadcast television network to which the set top box belongs.
5. The method for detecting a cable-wireless satellite converged network according to claim 1, wherein the method further comprises:
acquiring position information of each set top box in a set range and a signal use frequency band of a broadcast television network detected by each set top box;
drawing a signal use frequency band rendering graph according to the position information of each set top box and the signal use frequency band of the broadcast television network detected by each set top box;
analyzing and judging whether two broadcasting television networks which interfere with each other exist according to the signal use frequency band rendering graph;
in the case that two broadcast television networks which interfere with each other exist, the signal use frequency bands of the two broadcast television networks are adjusted to avoid the mutual interference between the two broadcast television networks.
6. An apparatus for detecting a cable-wireless satellite convergence network, comprising:
the system comprises an acquisition module, a detection module and a control module, wherein the acquisition module is used for acquiring the position information of a set top box and the detection result of a wireless bidirectional network detected by the set top box;
the judging module is used for judging whether the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network according to the detection result;
the determining module is used for determining an interference base station to which the wireless bidirectional network belongs according to the position information of the set top box and the detection result under the condition that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network;
the adjusting module is used for adjusting the signal use frequency band or the transmitting power of the wireless bidirectional network of the interference base station so as to avoid the interference of the wireless bidirectional network of the interference base station on the broadcast television network to which the set top box belongs;
the acquisition module is further configured to acquire the signal use frequency bands of other broadcast television networks detected by the set top box when the broadcast television network to which the set top box belongs is suspended;
the judging module is further configured to judge whether the signal use frequency band of the other broadcast television network is the same as the signal use frequency band of the broadcast television network to which the set-top box belongs, and if so, judge that the set-top box is interfered by the other broadcast television network.
7. The apparatus for detecting a converged cable and wireless satellite network according to claim 6, wherein the detection result comprises: network signal system, signal use frequency band and transmitting power.
8. The apparatus for detecting a converged cable and wireless satellite network according to claim 7, wherein the determining module is specifically configured to:
and if the signal use frequency band in the detection result is coincident with the signal use frequency band of the broadcast television network to which the set top box belongs, and the transmission power in the detection result is greater than a preset threshold value, judging that the broadcast television network to which the set top box belongs is interfered by the wireless bidirectional network.
9. The apparatus for detecting a converged cable and wireless satellite network according to claim 6,
the determining module is further configured to determine, when the set-top box is interfered by another broadcast television network, an interfering broadcast television tower to which the another broadcast television network belongs according to the signal use frequency band of the another broadcast television network and the location information of the set-top box;
the adjusting module is further configured to adjust a signal use frequency band of the broadcast television network of the interfering broadcast television tower, so as to avoid an interference segment of the broadcast television network of the interfering broadcast television tower with the broadcast television network to which the set top box belongs.
10. The apparatus for detecting a converged cable and wireless satellite network according to claim 6,
the acquisition module is also used for acquiring the position information of each set top box in a set range and the signal use frequency band of the broadcast television network detected by each set top box;
the device further comprises:
the drawing module is used for drawing a signal use frequency band rendering graph according to the position information of each set top box and the signal use frequency band of the broadcast television network detected by each set top box;
an analysis module for analyzing and judging whether two broadcasting television networks which interfere with each other exist according to the signal use frequency band rendering graph,
the adjusting module is further configured to adjust the signal use frequency bands of the two broadcast television networks under the condition that there are two broadcast television networks that interfere with each other, so as to avoid the mutual interference between the two broadcast television networks.
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