CN101572784A - Ground digital terrestrial television receiving method of terminal by initiative roaming - Google Patents
Ground digital terrestrial television receiving method of terminal by initiative roaming Download PDFInfo
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- CN101572784A CN101572784A CNA2009100843961A CN200910084396A CN101572784A CN 101572784 A CN101572784 A CN 101572784A CN A2009100843961 A CNA2009100843961 A CN A2009100843961A CN 200910084396 A CN200910084396 A CN 200910084396A CN 101572784 A CN101572784 A CN 101572784A
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Abstract
The invention discloses a ground digital terrestrial television receiving method of a terminal by initiative roaming. The following steps are executed: mobile communication base station signal and ground digital terrestrial television network signal are received, mobile communication base station information and ground digital terrestrial television network information are obtained according to the obtained mobile communication base station signal and the obtained ground digital terrestrial television network information, corresponding relation between the mobile communication base station signal and the ground digital terrestrial television network signal is verified according to the obtained mobile communication base station information and the obtained ground digital terrestrial television network information, a current ground digital terrestrial television network and the moving trend toward other ground digital terrestrial television network corresponding to the above terminal are judged according to the corresponding relation and the mobile communication base station information, and the terminal is switched from the current ground digital terrestrial television network to another ground digital terrestrial television network when the mobile communication base station signal satisfies a set relation.
Description
Technical field
The present invention relates to the method that a kind of terminal receives terrestrial DTV, relate in particular to a kind of terminal and initiatively roam the method that receives terrestrial DTV.
Background technology
Digital Television is divided into three kinds, be respectively terrestrial DTV, cable digital TV and satellite digital TV, wherein, terrestrial DTV can carry out the digital television signal issue and receive under wireless and relative-movement state, and it is therefore characteristics and obtained using widely also.
China has issued the national ground digital television channels transmission standard GB20600-2006 with independent intellectual property right in August, 2006.So far, Chinese ground standard becomes the 4th terrestrial DTV standard in the world.
Through development in a few years, terrestrial DTV has carried out the network coverage in national, provincial and important city and has carried out relevant business.Yet the scope of the terrestrial DTV network coverage is limited, and its coverage can be in tens kilometers, so can have following covering problem in the development of the terrestrial DTV network coverage:
1, owing to be subjected to the influence of landform, some regional network coverage meeting is using large tracts of land to cover the mode that covers by other frequency in the blind area on the basis;
2, adjacent two administrative regions or more wide zone be not owing to reasons such as frequency planning, distance, content construction use same frequency to carry out the construction of Single Frequency Network, thereby occur using a plurality of frequencies to carry out the situation that ground covers.
The characteristics of above-mentioned covering can occur in the terrestrial DTV network coverage afterwards frequently.For the terminal receiving equipment, owing to can move reception, the problem of another one network's coverage area will appear carrying out the transition to from a network's coverage area.The terminal receiving equipment from receive one the network video, data, services then receive video, data, services in the another one network, with continuous be this process that the user provides the terrestrial DTV service, be called " roaming ".
Because the ground digital television channels transmission network is the network of a broadcasting property, promptly transfer of data is a single direction, aloft transmits to the terminal receiving equipment from fixing television transmitting station in TV broadcast applications.Simultaneously, the characteristics of terrestrial DTV are the digital television signals that receiving equipment locked and received a simulation frequency at one time.Based on such situation, the terrestrial DTV terminal if from a network coverage under the situation that the another one network coverage is moved, normally adopt and search for manually/switch or the mode of passive roaming solves.
The mode of passive roaming mainly is a situation of knowing the terrestrial DTV network coverage in ground digital television signal or other approach as the mode that is stored in terminal in advance, which frequency the network coverage as an area and adjoining area has used separately, and service of which professional drawn game body or the like is provided in the frequency.
Digital television signal occur unstable, the error rate increases, under the situation of signal strength weakening, reception of souning out and present network cover the frequency of the use of exterior domain adjacent areas, if there are parameters such as signal and signal quality, intensity to meet the requirements, switch after then judging, to reach the purpose of roaming by imposing a condition.The passive type roaming has following shortcoming:
1, roaming is passive.Promptly the measure just taked under the bad situation occurred at network, this moment, the user obviously experienced the decline of service quality, mosaic occurred as video, and sound is discontinuous or data, services occurs pausing, loses or situation such as prolongation.
2, roaming might be unsuccessful.Because ground digital TV receiving terminal is to judge by some phenomenons, be problems such as network quality, judgement to the position of terminal self also can go wrong, and promptly has the situation that may not go out a network's coverage area and sound out, service impacting continuity and quality; Also having a kind of may be because the mistake of judging on opportunity, thus roaming of evening too early or excessively, and this angle from the user also is unsuccessful.
Summary of the invention
The object of the present invention is to provide a kind of terminal initiatively to roam the method that receives terrestrial DTV, to guarantee that terminal can be according to the variation of the pairing base station signal of terrestrial DTV sub-network in moving process, especially strong and weak the variation comes the correct switching of carrying out between the different sub-network network, thereby guarantees the quality of reception of terminal.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, carries out following steps:
Receive mobile communication base station signal and terrestrial DTV network signal, and know the mobile communication base station information and the terrestrial DTV network information according to mobile communication base station signal that is received and terrestrial DTV network signal;
According to the corresponding relation between the mobile communication base station information of being known and terrestrial DTV network information affirmation mobile communication base station signal and the terrestrial DTV network signal;
According to above-mentioned corresponding relation and in conjunction with mobile communication base station information, judge the current terrestrial DTV network of described terminal correspondence and to the mobile trend of other terrestrial DTV network, and when the satisfied setting of described mobile communication base station signal concerns, described terminal is switched to another terrestrial DTV network from current terrestrial DTV network.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, described terminal comprises information storage module, described terrestrial DTV network signal is stored in this information storage module, thereby in described receiving step, directly from this information storage module, receive the terrestrial DTV network signal.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, described receiving step receives the signal of at least two mobile communication base stations, described determining step is judged moving along with terminal, the strong and weak variation tendency of the signal of described at least two mobile communication base stations, and confirm the mobile communication base station signal of module affirmation and the corresponding relation between the terrestrial DTV network signal according to this strong and weak variation tendency and described relation, judge whether to carry out the switching of terrestrial DTV network signal.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, corresponding relation between described mobile communication base station signal and the terrestrial DTV network signal is a covering relation one to one, when described determining step is judged first mobile communication base station signal by weakening by force, and second mobile communication base station signal be during by weak enhancing, and described roaming switch step switches to another terrestrial DTV network with described terminal from current terrestrial DTV network.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, when described signal judge module is judged first mobile communication base station signal by weakening by force, and second mobile communication base station signal is by weak enhancing, and first mobile communication base station signal strength signal intensity is during less than second mobile communication base station signal strength signal intensity 0～3dBm, and described roaming switch step switches to another terrestrial DTV network with described terminal from current terrestrial DTV network.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, and described mobile communication base station information comprises identification information and/or the base station signal strength information and/or the base station signal quality information of base station identification information and/or base station coverage area.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, and the described terrestrial DTV network information comprises the modulation system information of terrestrial DTV sub-network identification information and/or sub-network frequency points corresponding information and/or sub-network correspondence and/or the video channel information of sub-network correspondence.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, and in described receiving step, receiving mobile communication base station signal and/or terrestrial DTV network signal is to realize by the antenna that is arranged on the described terminal.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, described corresponding relation is that part mobile communication base station signal is corresponding with the terrestrial DTV network signal, and/or part mobile communication base station signal is corresponding with the one or more sub-network coverage area boundaries of terrestrial DTV.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, and described antenna is to receive the fit antenna of mobile communication base station signal and ground digital television signal simultaneously or is the several separated antennaes that receive mobile communication base station signal and ground digital television signal respectively.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, described terminal can receive or store in advance the corresponding informance of each terrestrial DTV sub-network and each base station, thereby make terminal by detecting and judge the variation of base station signal, especially strong and weak the variation, and know its relatively mobile trend of each terrestrial DTV sub-network, and and then can carry out switching between the Different Ground Digital Television sub-network in the suitable time, not only can guarantee success rate for switching, the service quality of terminal is guaranteed.
Description of drawings
Fig. 1 initiatively roams the structural representation of the terminal in the method that receives terrestrial DTV for terminal of the present invention;
Fig. 2 initiatively roams the system architecture schematic diagram in the method that receives terrestrial DTV for terminal of the present invention.
Embodiment
Below in conjunction with accompanying drawing terminal of the present invention initiatively being roamed the method that receives terrestrial DTV elaborates.
As shown in Figure 1, terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, for ease of explanation, we can think initiatively to roam in terminal and comprise in the system that receives terrestrial DTV that information storage module, signal receiving module, relation confirm module, signal judge module, roaming handover module and show output module.Core component wherein is that signal receiving module, relation are confirmed module, signal judge module and roaming handover module.Yet in fact, the title of these so-called these modules is the purpose in order to clearly demonstrate just, and these modules are only represented its function, nor must non-ly be arranged in the terminal, but can utilize miscellaneous equipment to realize these functions.And terminal only need integrate or utilize this function to get final product.For example relation confirms that module realizes that the relation of ground digital television signal and mobile communication base station signal confirms function, and this relation is confirmed to be actually and can externally be finished, and that terminal only need receive or transfer this relation data is just passable.
Described terminal can be the equipment that receives ground digital television signal and mobile communication base station signal, for example, mobile phone, notebook, GPS (Global Positioning System, global positioning system), television set, PDA (Personal Digital Assistant, personal digital assistant) or the like.
Wherein, described demonstration output module is used for the content of the ground digital television signal correspondence that outlet terminal receives.
Described information storage module is used to store ground digital TV network information, also can be used to store the base station information that has obtained.The information that stores in this information storage module promptly can be the received information of following signal receiving module, also can be the information of input in advance.Described base station information comprises identification information and/or the base station signal strength information and/or the base station signal quality information of base station identification information and/or base station coverage area.The described terrestrial DTV network information comprises the modulation system information of terrestrial DTV sub-network identification information and/or sub-network frequency points corresponding information and/or sub-network correspondence and/or the video channel information of sub-network correspondence.And, there are corresponding relation in the above-mentioned base station information and the terrestrial DTV network information, the promptly corresponding as can be known terrestrial DTV network information according to base station information, for example, by the identification information of base station 1 identification information of terrestrial DTV sub-network and frequency point information, modulation system information etc. in this 1 region, base station as can be known.
Above-mentioned base station is mobile communication base station, specifically can be GSM mobile communication base station or CDMA mobile communication base station or WCDMA mobile communication base station or TD-SCDMA mobile communication base station.The form of expression of described base station information can be DVB (Digital Video Broadcasting, digital video broadcasting) expansion EPG (ElectronicProgramGuide, TV Guide) that defines in table that defines in the standard or the DVB standard or private data stream or the file that pushes by broadcasting.
The file that the form of expression of the above-mentioned terrestrial DTV network information can be the expansion EPG that defines in the table that defines in the DVB standard or the DVB standard or private data stream or pushes by broadcasting.
Described signal receiving module is used to receive base station signal and/or ground digital television signal.In other words, the mobile communication base station signal receives acquisition constantly by signal receiving module, and ground digital television signal can be to receive acquisition constantly, also can be to be stored in advance in the terminal information memory module.This signal receiving module can be the antenna on the terminal, this antenna both can adopt separated antennae to receive mobile communication base station signal and ground digital television signal respectively, also can adopt fit antenna to receive mobile communication base station signal and ground digital television signal simultaneously.
Signal receiving module receives mobile communication base station signal and terrestrial DTV network signal, and knows the mobile communication base station information and the terrestrial DTV network information according to mobile communication base station signal that is received and terrestrial DTV network signal.Described information not only comprises the coverage condition of mobile communication base station signal and terrestrial DTV network signal, but also comprises a terrestrial DTV sub-network unique identification, the channel of simulating frequency or frequency correspondence, modulation system, video channel information etc.; And unique identifying number and certain of base station covering or the unique identification in a plurality of zones or the like of comprising mobile communication base station.
Relation confirms that module is according to the corresponding relation between the mobile communication base station information of being known and terrestrial DTV network information affirmation mobile communication base station signal and the terrestrial DTV network signal.Described corresponding relation includes but are not limited to the corresponding of certain or some base station informations and terrestrial DTV sub-network, and certain or some base station informations is corresponding with the one or more sub-network coverage area boundaries of terrestrial DTV.
Described signal judge module is according to above-mentioned corresponding relation and in conjunction with mobile communication base station information, judge the current terrestrial DTV network of described terminal correspondence and to the mobile trend of other terrestrial DTV network, and when the satisfied setting of described mobile communication base station signal concerns, described terminal is switched to another terrestrial DTV network from current terrestrial DTV network by the roaming handover module.For example, be used to judge whether the mobile communication base station signal of the current correspondence of terminal and other at least one base station signal satisfy certain relation.This relation is determined by preestablishing, and can be the relation between the signal strength signal intensity, also can be the relation between other characteristics such as signal such as quality, noise, frequency.For example, utilize the variation tendency of current base station signal strength signal intensity and current base station signal strength signal intensity, and, other signal of base station intensity of terminal correspondence and the variation tendency of these signal of base station intensity, the signal judge module can be finished the judgement that whether needs the switching digital TV sub-network.
For example, described signal receiving module receives the signal of three mobile communication base stations, described signal judge module is judged moving along with terminal, the signal of first mobile communication base station strengthens gradually, and second and the 3rd mobile communication base station signal weaken gradually, and wherein second weaken sooner than the 3rd.The synchronous signal receiver module receives two terrestrial DTV network signals, can judge whether carry out the switching of terrestrial DTV network signal according to the covering relation between these two terrestrial DTV network signals and three the mobile communication base station signals this moment.
Described roaming handover module is used for terminal is switched in another Digital Television sub-network from current Digital Television sub-network.When this roaming handover module specifically carries out handover operation, can realize that terminal is switched in current Digital Television sub-network by the receive frequency that changes terminal and enter another Digital Television sub-network.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, signal judge module in described terminal is judged the current base station signal of terminal correspondence by weakening by force, another base station signal of judging the terminal correspondence simultaneously is by weak enhancing, then compare with another base station signal strength when meeting set point, described terminal is switched to the Digital Television sub-network of above-mentioned another base station correspondence from the Digital Television sub-network of current base station correspondence by the roaming handover module in above-mentioned current base station signal strength signal intensity.
The result that current base station signal strength signal intensity described herein is compared with another base station signal strength both can choose the two ratio, also can choose the difference of the two.When choosing the ratio of the two, this ratio can be between 0.2～0.5dB, and promptly described set point is 0.2～0.5dB.When choosing the difference of the two, this difference can be between 1～3dBm, and promptly described set point is 1～3dBm.Both differences also can because obviously, when the signal strength signal intensity of two mobile communication base stations equates, might switch between 0～3dBm or 0～1dBm.
Be that example illustrates that terminal of the present invention initiatively roams the process that receives terrestrial DTV below with Fig. 2.
As shown in Figure 2,111 overlay areas 112, described base station, described base station 116 covers another zone 115, and described regional 112 exist overlapping with zone 115.In above-mentioned two zones, there are two terrestrial DTV sub-networks, be the terrestrial DTV sub-network 117 of base station 111 correspondences and the terrestrial DTV sub-network 118 of base station 116 correspondences, described terrestrial DTV sub-network 117 also exists overlapping with the overlay area of terrestrial DTV sub-network 118.Described ground digital TV receiving terminal 114 carries out the reception of base station signal and ground digital television signal by antenna 113.
When described ground digital TV receiving terminal 114 when move the overlay area of Digital Television sub-network 118 earthward from the overlay area of current terrestrial DTV sub-network 117, its antenna 113 can be known following information from the data of current terrestrial DTV sub-network 117 broadcasting: the information of the information of the information of adjacent terrestrial DTV sub-network 118, base station 111 and overlay area 112 thereof, base station 116 and overlay area 115 thereof.Above-mentioned information has comprised the signal message of base station 111 and base station 116, i.e. signal strength signal intensity and variation tendency thereof.
The signal strength signal intensity of supposing overlay area 112 correspondences of base station 111 is 1, the signal strength signal intensity of supposing overlay area 115 correspondences of base station 116 is 2, then when signal strength signal intensity 1＞signal strength signal intensity 2, ground digital TV receiving terminal 114 is in the overlay area of terrestrial DTV sub-network 117; When signal strength signal intensity 1＜signal strength signal intensity 2, ground digital TV receiving terminal 114 is in the overlay area of terrestrial DTV sub-network 118; And when signal strength signal intensity 1 and signal strength signal intensity 2 substantially near the time, ground digital TV receiving terminal 114 is in the overlay area of terrestrial DTV sub-network 117 and the intersection, overlay area of terrestrial DTV sub-network 118.Thus, signal judge module in described ground digital TV receiving terminal 114 is judged the signal strength signal intensity 1 of base station 111 of its current correspondence by weakening by force, the signal strength signal intensity 2 of judging adjacent base station 116 simultaneously is by weak enhancing, and further judging at a time signal strength signal intensity 1 compares with signal strength signal intensity 2 and meets set point, when adopting signal strength signal intensity 1 to calculate with the difference of signal strength signal intensity 2, this set point can be 0, just when signal strength signal intensity 1 equates with signal strength signal intensity 2, present embodiment is an example with 1, at this moment, ground digital TV receiving terminal 114 can switch to terrestrial DTV sub-network 118 from the terrestrial DTV sub-network 117 of current correspondence by the control of roaming handover module.
Terminal of the present invention is initiatively roamed in the method that receives terrestrial DTV, described terminal can receive or store in advance the corresponding informance of each terrestrial DTV sub-network and each base station, thereby make terminal by detecting and judging that the power of base station signal changes the mobile trend of knowing its relative each terrestrial DTV sub-network, and and then can carry out switching between the Different Ground Digital Television sub-network in the suitable time, not only can guarantee success rate for switching, the service quality of terminal is guaranteed.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in specification and the execution mode, it can be applied to various suitable the field of the invention fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the present invention is not limited to specific details and illustrates here and describe.
Claims (10)
1. a terminal is initiatively roamed the method that receives terrestrial DTV, it is characterized in that carrying out following steps:
Receive mobile communication base station signal and terrestrial DTV network signal, and know the mobile communication base station information and the terrestrial DTV network information according to mobile communication base station signal that is received and terrestrial DTV network signal;
According to the corresponding relation between the mobile communication base station information of being known and terrestrial DTV network information affirmation mobile communication base station signal and the terrestrial DTV network signal;
According to above-mentioned corresponding relation and in conjunction with mobile communication base station information, judge the current terrestrial DTV network of described terminal correspondence and to the mobile trend of other terrestrial DTV network, and satisfy at described mobile communication base station signal and to set when concerning,
Described terminal is switched to another terrestrial DTV network from current terrestrial DTV netsurfing.
2. terminal as claimed in claim 1 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that, described terminal comprises information storage module, described terrestrial DTV network signal is stored in this information storage module, thereby in described receiving step, directly from this information storage module, receive the terrestrial DTV network signal.
3. terminal as claimed in claim 1 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that, described receiving step receives the signal of at least two mobile communication base stations, described determining step is judged moving along with terminal, the strong and weak variation tendency of the signal of described at least two mobile communication base stations, and, judge whether to carry out the switching of terrestrial DTV network signal according to this strong and weak variation tendency and the mobile communication base station signal of affirmation step affirmation and the corresponding relation between the terrestrial DTV network signal.
4. terminal as claimed in claim 3 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that, corresponding relation between described mobile communication base station signal and the terrestrial DTV network signal is a covering relation one to one, when described determining step is judged first mobile communication base station signal by weakening by force, and second mobile communication base station signal be during by weak enhancing, and described roaming switch step switches to another terrestrial DTV network with described terminal from current terrestrial DTV network.
5. terminal as claimed in claim 4 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that, when described determining step is judged first mobile communication base station signal by weakening by force, and second mobile communication base station signal is by weak enhancing, and first mobile communication base station signal strength signal intensity is during less than second mobile communication base station signal strength signal intensity 0～3dBm, and described roaming switch step switches to another terrestrial DTV network with described terminal from current terrestrial DTV network.
6. terminal as claimed in claim 1 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that described mobile communication base station information comprises identification information and/or the base station signal strength information and/or the base station signal quality information of base station identification information and/or base station coverage area.
7. terminal as claimed in claim 1 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that the described terrestrial DTV network information comprises the modulation system information of terrestrial DTV sub-network identification information and/or sub-network frequency points corresponding information and/or sub-network correspondence and/or the video channel information of sub-network correspondence.
8. terminal as claimed in claim 1 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that, in described receiving step, receiving mobile communication base station signal and/or terrestrial DTV network signal is to realize by the antenna that is arranged on the described terminal.
9. terminal as claimed in claim 1 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that, described corresponding relation is that part mobile communication base station signal is corresponding with the terrestrial DTV network signal, and/or part mobile communication base station signal is corresponding with the one or more sub-network coverage area boundaries of terrestrial DTV.
10. terminal as claimed in claim 8 is initiatively roamed the method that receives terrestrial DTV, it is characterized in that described antenna is to receive the fit antenna of mobile communication base station signal and ground digital television signal simultaneously or is the several separated antennaes that receive mobile communication base station signal and ground digital television signal respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100843961A CN101572784A (en) | 2009-05-22 | 2009-05-22 | Ground digital terrestrial television receiving method of terminal by initiative roaming |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100843961A CN101572784A (en) | 2009-05-22 | 2009-05-22 | Ground digital terrestrial television receiving method of terminal by initiative roaming |
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| CNA2009100843961A Pending CN101572784A (en) | 2009-05-22 | 2009-05-22 | Ground digital terrestrial television receiving method of terminal by initiative roaming |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103167357A (en) * | 2011-12-15 | 2013-06-19 | 英顺源（上海）科技有限公司 | System and method for selecting and playing television signals according to signal strength of television stations |
| CN103167335A (en) * | 2011-12-15 | 2013-06-19 | 英顺源（上海）科技有限公司 | System and method for television signal playing for mobile device |
| CN109168133A (en) * | 2018-09-12 | 2019-01-08 | 深圳思凯微电子有限公司 | Broadcast station cut-in method, receiving end and computer readable storage medium |
-
2009
- 2009-05-22 CN CNA2009100843961A patent/CN101572784A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103167357A (en) * | 2011-12-15 | 2013-06-19 | 英顺源（上海）科技有限公司 | System and method for selecting and playing television signals according to signal strength of television stations |
| CN103167335A (en) * | 2011-12-15 | 2013-06-19 | 英顺源（上海）科技有限公司 | System and method for television signal playing for mobile device |
| CN109168133A (en) * | 2018-09-12 | 2019-01-08 | 深圳思凯微电子有限公司 | Broadcast station cut-in method, receiving end and computer readable storage medium |
| CN109168133B (en) * | 2018-09-12 | 2020-12-01 | 深圳思凯微电子有限公司 | Broadcast station access method, receiving end and computer readable storage medium |
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