CN102957945B - Multiservice frequency assignment method and system for dual-mode terminal - Google Patents
Multiservice frequency assignment method and system for dual-mode terminal Download PDFInfo
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- CN102957945B CN102957945B CN201110248197.7A CN201110248197A CN102957945B CN 102957945 B CN102957945 B CN 102957945B CN 201110248197 A CN201110248197 A CN 201110248197A CN 102957945 B CN102957945 B CN 102957945B
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Abstract
The invention discloses multiservice frequency assignment method and system for a dual-mode terminal. The method is used for reasonably assigning cable digital television network frequency bandwidth for the DVB/IP (digital video broadcasting and internet protocol) digital television dual-mode terminal and guaranteeing normal service of terminal multi-services. The method includes: when a frequency management unit assigns a certain service-type frequency for the terminal, searching tuner status information and service utilization information corresponding to the dual-mode terminal, and assigning proper frequencies for services of the dual-mode terminal; if an idle turner in the dual-mode server occurs, assigning a frequency meeting the service demanded bandwidth for the dual-mode terminal; and if no idle turner in the dual-mode terminal occurs, switching a service on the original frequency and a newly applied service to a same frequency, and returning frequency switching information. The tuner status information includes tuner number, frequency information locked by tuners, and service information corresponding to the tuners.
Description
Technical field
The present invention relates to cable television network bandwidth management field, particularly cable television network multi-service frequency bandwidth allocation techniques field, be specifically related to a kind of multi-service frequency point allocation method and system of dual-mode terminal.
Background technology
Dual-mode terminal, refer on the hardware configuration basis based on existing digital TV terminal, load the application layer software based on IP agreement, by the mode at the integrated relevant Ethernet interface of same terminal, adopt same process chip to complete information processing to digital television signal and IP content, utilize same remote controller to realize the fusion of different business in identical platform.In brief, be exactly machine two net: IP network and digital tv network.The implication of bimodulus has been two mode of operations: IP tunnel and RF digital television channel, can carry out the business of IP and Cable simultaneously.Tuner (tuner) is the Key Electron Device for radio TV signals receiving, and each tuner locks a frequency.Owing to often increasing a tuner, increase the cost of digital TV terminal, so main flow Digital Television dual-mode terminal only has a tuner at present, such terminal can only lock a frequency simultaneously.
Along with carrying out in a deep going way of HFC Two-way Network transformation, the terminal with two-way communications capabilities is increasing, the data broadcast that Data Application Modes is not only just unidirectional, and the demand of two-way interactive data service also increases thereupon.Digital cable customers is to the increase day by day of the demand of all kinds business, and multiple business is carried out simultaneously smoothly just to require digital TV terminal to ensure.Mention above, only there is a tuner in current main flow Digital Television dual-mode terminal, to ensure that terminal can use multiple business simultaneously like this, multiple business datum just must be made to be issued to terminal from same frequency, and traditional frequency point allocation algorithm does not consider actual conditions and the multiple services use of terminal of terminal tuner, so have in limited time in tuner number, particularly when dual-mode terminal only has a tuner, design a kind of multi-service frequency point allocation method, the data of multiple business are made to be issued to terminal from this limited frequency, ensure that terminal is a direction being worth research to multiple services smooth use.
Summary of the invention
The object of the invention is to, have in limited time in terminal tunes device number, when particularly only having a tuner, ensure that dual-mode terminal is to multiple services smooth use, thus a kind of multi-service frequency point allocation method and system of dual-mode terminal are provided.
For achieving the above object, the present invention proposes a kind of multi-service frequency point allocation method of dual-mode terminal, the method is used for the frequency bandwidth for DVB/IP Digital Television dual-mode terminal reasonable distribution Cable Network, ensure the multiple services normal use of dual-mode terminal, described method comprises: when frequency administrative unit is terminal distribution type of service frequency:
For searching the step of tuner state information corresponding to dual-mode terminal and business use information.
For the step of the suitable frequency of traffic assignments for described dual-mode terminal, this step comprises further: if dual-mode terminal exists empty tuner, for this dual-mode terminal distributes the frequency that can meet business demand bandwidth; If this dual-mode terminal is without empty tuner, business on original frequency and the business of newly applying for are switched on same frequency, and to the information of asking one end of frequency to return frequency switching, lock new frequency for notification terminal, and business is switched on new frequency.
In technique scheme, described tuner state information comprises: terminal tunes device number, the information of the information of each tuner locked frequency point of terminal and the corresponding business of each tuner; Described tuner number is one or several; Described dual-mode terminal is by the tuner state information of bilateral network feedback terminal and receive frequency and reply message.
A kind of multi-service frequency point allocation system of dual-mode terminal is also provided based on said method the present invention, this system is used for being the frequency bandwidth that DVB/IP Digital Television dual-mode terminal carries out reasonable distribution Cable Network, ensure the multiple services normal use of dual-mode terminal, comprise frequency administrative unit and dual-mode terminal, it is characterized in that, described frequency administrative unit, for searching tuner state information corresponding to dual-mode terminal, and be the suitable frequency of traffic assignments of this dual-mode terminal, if namely there is empty tuner in dual-mode terminal, then this frequency administrative unit is the frequency that this dual-mode terminal distributes that can meet a business demand bandwidth, if this dual-mode terminal is without empty tuner, then the business on original frequency and the business of newly applying for are switched on same frequency by this frequency administrative unit, and to applying for that one end of frequency returns the information of frequency switching, lock new frequency for notification terminal, and business is switched on new frequency.。
System described in technique scheme, described frequency administrative unit comprises further:
Transmit-Receive Unit, for receiving tuner state information and the frequency application information of the feedback of dual-mode terminal; Simultaneously also for sending the return information of frequency application.
Judging unit, for for frequency application request, according to the information in the state information of the corresponding dual-mode terminal of request, frequency application information and frequency pond, judge whether to receive this frequency request, the need of switching frequency, and select suitable frequency from frequency pond.
Decision package, for generating the object information for the frequency point allocation of certain dual-mode terminal according to the result of judging unit; With frequency pond, for managing frequency, safeguard frequency point information, wherein frequency point information comprises remaining bandwidth, value of frequency point, frequency modulation system or frequency symbol rate.
Described in said system, tuner state information comprises: terminal tunes device number, the information of the information of each tuner locked frequency point of terminal and the corresponding business of each tuner; Described tuner number is one or several; Described dual-mode terminal is by the tuner state information of bilateral network feedback terminal and receive frequency and reply message.
After adopting above-mentioned technical scheme, the present invention has the following advantages: the present invention, when for terminal distribution frequency, uses information, reasonable distribution frequency according to the tuner state information of terminal and the business of terminal, improve the utilance of frequency, efficient and rational make use of resource; In addition, the present invention can solve and ensure to support while terminal is to multiple business when terminal tunes device deficiency, and the strategy taked is under multiple business is switched to a frequency.
Accompanying drawing explanation
Multi-service frequency point allocation method figure in Fig. 1 the present invention;
Dual-mode terminal and the mutual schematic diagram of frequency administrative unit in specific embodiment in Fig. 2 the present invention;
In Fig. 3 the present invention in single tuner situation, multi-service frequency point allocation method figure;
Embodiment
In order to make object of the present invention, implementation method and advantage are clearly understood, for terminal for single Tuner situation is also with reference to accompanying drawing, the present invention is described in further detail.
The invention provides a kind of multi-service frequency point allocation method of dual-mode terminal, in the method, frequency administrative unit is according to the tuner state information of terminal, the business of terminal uses information, reasonable distribution Cable Network frequency bandwidth, ensure the multiple services normal use of terminal, specifically comprise, when frequency administrative unit is terminal distribution type of service frequency, search the tuner information of counterpart terminal, if there is idle tuner in this terminal, frequency administrative unit distributes the frequency that meets its bandwidth demand, if this terminal is without idle tuner, can the business on original frequency and the business of newly applying for be switched on same frequency, and return the information of frequency switching.
In said method, described dual-mode terminal has one or more than one tuner; Dual-mode terminal is interconnected by two-way IP tunnel and frequency administrative unit.
In said method, described dual-mode terminal replys message by the tuner state information of bilateral network feedback terminal with reception frequency.
In said method, described tuner state information comprises terminal tuner number, the information of each tuner locked frequency point of terminal, the information etc. of the corresponding business of each tuner.
Optionally, described for comprising following steps further for the step of the suitable frequency of traffic assignments:
103) if now terminal exists empty tuner, then 104 are turned), otherwise turn 108);
104) whether frequency administrative unit is searched is apply for that the dual-mode terminal of frequency distributes the frequency of corresponding type of service, if turn 105), otherwise turn 107);
105) judge whether this frequency point allocation meets the demand of bandwidth application to the bandwidth of this terminal, if so, turns 106), otherwise turn 107);
106) select this frequency as frequency corresponding to this type of service of terminal, turn 115);
107) frequency administrative unit finds the frequency that meets this service bandwidth demand from frequency pond, and the frequency that corresponding type of service is corresponding using this frequency as terminal, turns 115);
108) whether frequency administrative unit searches is the frequency of the corresponding type of service of this terminal distribution, if turn 109), otherwise turn 110);
109) judge whether this frequency point allocation meets the demand of bandwidth application to the bandwidth of this terminal, if so, turns 114), otherwise turn 110);
110) whether frequency administrative unit, according to terminal's status information, search terminal at other frequencies of locking, if turn 111), otherwise turn 107);
111) whether have the remaining bandwidth of frequency to meet bandwidth demand in other frequency lists, if so, turn 112), otherwise turn 113);
112) select this frequency, distribute a respective bandwidth to terminal, using this frequency as terminal, the frequency of corresponding type of service, turns 115);
113) from frequency list, select a frequency, add that bandwidth application is new bandwidth demand with its bandwidth, from frequency pond, select the frequency meeting this bandwidth demand, switch the corresponding business of terminal on this frequency on newly assigned frequency, turn 115);
114) directly select this frequency as the frequency of the corresponding type of service of this terminal of terminal;
115) according to the frequency selected, information such as amendment terminal traffic type mapping table and frequency pond state etc.;
116) frequency point allocation result is returned to terminal, this allocation result information comprises distribution frequency point information, and whether the switching of frequency occurs, and if occur frequency switch time, the frequency point information be switched.
Wherein, step 113), from frequency list, select to switch frequency can adopt following principle, the present invention is not specifically limited: terminal utilized bandwidth minimum principle, terminal use the minimum principle of type of service or select according to type of service etc. that terminal uses.
The detailed step of foregoing description is a kind of embodiment of the present invention and unrestricted, those skilled in the art take the modes such as deletion or merging to revise the operation of above-mentioned step on the basis based on design concept of the present invention, do not depart from design concept of the present invention.
In sum, the present invention discloses a kind of multi-service frequency point allocation method of dual-mode terminal, the method refers to tuner (tuner) state information of frequency administrative unit according to terminal, the business of terminal uses information, reasonable distribution Cable Network frequency bandwidth, ensure the multiple services normal use of terminal, described method comprises the steps: the tuner state information of dual-mode terminal by bilateral network feedback terminal, frequency administrative unit is according to the tuner state information of terminal, the business of terminal uses information, reasonable distribution Cable Network frequency bandwidth, ensure the multiple services normal use of terminal, specifically comprise, when frequency administrative unit is terminal distribution type of service frequency, search the tuner information of counterpart terminal, if there is idle tuner in this terminal, frequency administrative unit distribute one meet its bandwidth demand frequency, if this terminal is without idle tuner, can the business on original frequency and the business of newly applying for be switched on same frequency, and return the information of frequency switching, dual-mode terminal receives frequency by bilateral network and replys message.Described dual-mode terminal has one or more tuner.
As shown in Figure 2, this figure describes a kind of application scenarios of actual capabilities, and system comprises frequency administrative unit and dual-mode terminal, and both are in a subnet, comprising: 1) terminal timing is to frequency administrative unit feedback tuner state information; 2) terminal is to the frequency application request of certain business of frequency administrative unit application; 3) frequency administrative unit is according to the information in frequency application request, terminal tuner state information, is terminal distribution frequency, and result is returned to terminal.
Information in its intermediate-frequeney point application request comprises terminal iidentification, type of service, bandwidth etc.; Terminal tuner state information comprises terminal tuner number, the information of each tuner locked frequency point of terminal, the information etc. of the corresponding business of each tuner.
As shown in Figure 3, when terminal is single tuner, frequency administrative unit is when the frequency application receiving terminal, and frequency point allocation comprises the steps:
301) frequency administrative unit receives the application frequency message that terminal sends, and this message comprises bandwidth application, type of service, end message etc.;
302) frequency administrative unit searches the information such as frequency corresponding to terminal, tuner state according to end message;
303) if when now the tuner of terminal is idle condition, then turn 304), otherwise turn 305);
304) frequency administrative unit finds the frequency that meets this service bandwidth demand from frequency pond, turns 311);
305) whether frequency administrative unit searches is the frequency of the corresponding type of service of this terminal distribution, if turn 306), otherwise turn 308);
306) judge whether this frequency point allocation meets the demand of bandwidth application to the bandwidth of this terminal, if so, turns 307), otherwise turn 308);
307) directly select this frequency as the frequency of the corresponding type of service of this terminal of terminal, turn 311);
308) whether the remaining bandwidth of this terminal locking frequency meets bandwidth demand, if turn 309), otherwise turn 310);
309) select this frequency, distribute respective bandwidth to terminal, the frequency using this frequency as the corresponding type of service of this terminal, turns 311);
310) add that bandwidth application is for bandwidth demand with the utilized bandwidth of the former locked frequency point of terminal, select to meet this bandwidth demand frequency from frequency pond, the frequency using this frequency as the corresponding type of service of this terminal, turns 311);
311) according to the frequency selected, information such as amendment terminal traffic type mapping table and frequency pond state etc.;
312) frequency point allocation result is returned to terminal, this allocation result information comprises distribution frequency point information, and whether the switching of frequency occurs, and if occur frequency switch time, the frequency point information be switched.
The tuner that above execution mode part occurs and tuner.
The foregoing is only a specific embodiment of the present invention; be not intended to limit protection scope of the present invention; those skilled in the art is to be understood that; under the prerequisite not departing from inventive principle; technical scheme of the present invention is modified or equivalent replacement; do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in protection scope of the present invention.
Claims (10)
1. a multi-service frequency point allocation method for dual-mode terminal, the method is used for the frequency bandwidth for DVB/IP Digital Television dual-mode terminal reasonable distribution Cable Network, and ensure the multiple services normal use of dual-mode terminal, described method comprises:
When frequency administrative unit is terminal distribution type of service frequency:
For searching the step of tuner state information corresponding to dual-mode terminal and business use information;
For the step of the suitable frequency of traffic assignments for described dual-mode terminal, this step comprises further:
If dual-mode terminal exists empty tuner, for this dual-mode terminal distributes the frequency that can meet business demand bandwidth; If this dual-mode terminal is without empty tuner, the business on original frequency and the business of newly applying for are switched on same frequency.
2. the multi-service frequency point allocation method of dual-mode terminal according to claim 1, is characterized in that, described tuner state information comprises: terminal tunes device number, the information of the information of each tuner locked frequency point of terminal and the corresponding business of each tuner.
3. the multi-service frequency point allocation method of dual-mode terminal according to claim 1 and 2, is characterized in that, described tuner number is one or several.
4. the multi-service frequency point allocation method of dual-mode terminal according to claim 1, is characterized in that, described dual-mode terminal is by the tuner state information of bilateral network feedback terminal and receive frequency and reply message;
Described business on original frequency being switched on same frequency with the business of newly applying for also comprises after step to asking one end of frequency to return frequency handover information, locks new frequency, and business be switched on new frequency for notification terminal.
5. the multi-service frequency point allocation method of dual-mode terminal according to claim 1, is characterized in that, described for comprising following steps further for the step of the suitable frequency of traffic assignments:
103) if now terminal exists empty tuner, then 104 are turned), otherwise turn 108);
104) whether frequency administrative unit is searched is apply for that the dual-mode terminal of frequency distributes the frequency of corresponding type of service, if turn 105), otherwise turn 107);
105) judge whether this frequency point allocation meets the demand of bandwidth application to the bandwidth of this terminal, if so, turns 106), otherwise turn 107);
106) select this frequency as frequency corresponding to this type of service of terminal, turn 115);
107) frequency administrative unit finds the frequency that meets this service bandwidth demand from frequency pond, and the frequency that corresponding type of service is corresponding using this frequency as terminal, turns 115);
108) whether frequency administrative unit searches is the frequency of the corresponding type of service of this terminal distribution, if turn 109), otherwise turn 110);
109) judge whether this frequency point allocation meets the demand of bandwidth application to the bandwidth of this terminal, if so, turns 114), otherwise turn 110);
110) whether frequency administrative unit, according to terminal's status information, search terminal at other frequencies of locking, if turn 111), otherwise turn 107);
111) whether have the remaining bandwidth of frequency to meet bandwidth demand in other frequency lists, if so, turn 112), otherwise turn 113);
112) select this frequency, distribute a respective bandwidth to terminal, using this frequency as terminal, the frequency of corresponding type of service, turns 115);
113) from frequency list, select a frequency, add that bandwidth application is new bandwidth demand with its bandwidth, from frequency pond, select the frequency meeting this bandwidth demand, switch the corresponding business of terminal on this frequency on newly assigned frequency, turn 115);
114) directly select this frequency as the frequency of the corresponding type of service of this terminal of terminal;
115) according to the frequency selected, amendment terminal traffic type mapping table and frequency pond state information;
116) frequency point allocation result is returned to terminal, this allocation result information comprises distribution frequency point information, and whether the switching of frequency occurs, and if occur frequency switch time, the frequency point information be switched.
6. the multi-service frequency point allocation system of a dual-mode terminal, this system is used for being the frequency bandwidth that DVB/IP Digital Television dual-mode terminal carries out reasonable distribution Cable Network, ensures the multiple services normal use of dual-mode terminal, comprises frequency administrative unit and dual-mode terminal, it is characterized in that
Described frequency administrative unit, for searching tuner state information corresponding to dual-mode terminal, and be the suitable frequency of traffic assignments of this dual-mode terminal, if namely dual-mode terminal exists empty tuner, then this frequency administrative unit is the frequency that this dual-mode terminal distributes that can meet a business demand bandwidth; If this dual-mode terminal is without empty tuner, then the business on original frequency and the business of newly applying for are switched on same frequency by this frequency administrative unit.
7. the multi-service frequency point allocation system of dual-mode terminal according to claim 6, is characterized in that, described frequency administrative unit comprises further:
Transmit-Receive Unit, for receiving tuner state information and the frequency application information of the feedback of dual-mode terminal; Simultaneously also for sending the return information of frequency application;
Judging unit, for for frequency application request, according to the information in the state information of the corresponding dual-mode terminal of request, frequency application information and frequency pond, judge whether to receive this frequency request, the need of switching frequency, and select suitable frequency from frequency pond;
Decision package, for generating the object information for the frequency point allocation of certain dual-mode terminal according to the result of judging unit; With
Frequency pond, for managing frequency, safeguards frequency point information, and wherein frequency point information comprises remaining bandwidth, value of frequency point, frequency modulation system or frequency symbol rate.
8. the multi-service frequency point allocation system of dual-mode terminal according to claim 6, is characterized in that, described tuner state information comprises: terminal tunes device number, the information of the information of each tuner locked frequency point of terminal and the corresponding business of each tuner.
9. the multi-service frequency point allocation system of dual-mode terminal according to claim 8, is characterized in that, described tuner number is one or several.
10. the multi-service frequency point allocation system of dual-mode terminal according to claim 6, is characterized in that, described dual-mode terminal is by the tuner state information of bilateral network feedback terminal and receive frequency and reply message.
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| CN201110248197.7A CN102957945B (en) | 2011-08-26 | 2011-08-26 | Multiservice frequency assignment method and system for dual-mode terminal |
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| CN201110248197.7A CN102957945B (en) | 2011-08-26 | 2011-08-26 | Multiservice frequency assignment method and system for dual-mode terminal |
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| CN102957945B true CN102957945B (en) | 2015-06-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104038777B (en) * | 2014-04-21 | 2017-08-29 | 华数传媒网络有限公司 | It is a kind of that IP terminals are accessed into DVB video networking systems and implementation method |
| CN107147922B (en) * | 2017-06-20 | 2019-06-18 | 深圳市茁壮网络股份有限公司 | Frequency point resource allocation methods and frequency point resource management server |
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| CN101365103A (en) * | 2007-08-06 | 2009-02-11 | 中国科学院声学研究所 | Interactive service management method for cable television network |
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| CN101399966A (en) * | 2008-09-05 | 2009-04-01 | 深圳创维数字技术股份有限公司 | IP set-top box and method for realizing cross frequency service in IP set-top box |
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