CN102377675B - Dynamic bandwidth distribution method, device and system - Google Patents
Dynamic bandwidth distribution method, device and system Download PDFInfo
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- CN102377675B CN102377675B CN201110364917.6A CN201110364917A CN102377675B CN 102377675 B CN102377675 B CN 102377675B CN 201110364917 A CN201110364917 A CN 201110364917A CN 102377675 B CN102377675 B CN 102377675B
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Abstract
The invention discloses a dynamic bandwidth distribution method, a dynamic bandwidth distribution device and a dynamic bandwidth distribution system. The method comprises the following steps of: dynamically acquiring a channel bandwidth required by voice cluster signals; when the voice cluster signals have bandwidth requirements, distributing corresponding channel bandwidth resources to cluster communication equipment from master channel bandwidth resources of a private network to transmit the voice cluster signals, and distributing all the reset channel bandwidth resources in the private network to Ethernet data transmission equipment to transmit Ethernet data; and when change of the current channel bandwidth distributed to the Ethernet data transmission equipment is determined, informing the Ethernet data transmission equipment of adjusting the transmission rate of the Ethernet data according to the current distributed channel bandwidth, so that the transmission rate of the Ethernet data is adaptive to the current channel bandwidth, loss of the Ethernet data can be avoided, the reliability of data transmission is enhanced, and the performance of the system is improved.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of Bandwidth Dynamic Allocation methods, devices and systems.
Background technology
Along with the diversified development of professional communication, the demand of client and the means of communication used also are enriched constantly, such as, in existing private network communication system, except traditional voice data traffic part, just also there is more Ethernet data business demand, for example photographic technique etc., because the appropriate litigation fees increasing extra transmission link is high, so, in order to cost-saving, usually voice data traffic and Ethernet data business are placed in same link and transmit, therefore, how under existing limited bandwidth resources, distribute these bandwidth resources neatly, it is made can more effectively to carry diversified business, just seem particularly important.
Prior art is when realizing Bandwidth Dynamic Allocation, directly can adjust the time slot that Ethernet takies, such as, if need larger bandwidth to carry out transmitting audio data, then system will reduce the bandwidth shared by Ethernet data, and transmission rate now due to Ethernet data is constant, so Ethernet data may be caused to lose, particularly when this Ethernet data specifically real time data, during as picture control etc., this phenomenon is particularly outstanding, such as, just there will be the phenomenons such as serious packet loss, card figure, mosaic, greatly have impact on Consumer's Experience.
Summary of the invention
The embodiment of the present invention provides a kind of Bandwidth Dynamic Allocation methods, devices and systems, and Ethernet data can be avoided to lose.
A kind of Bandwidth Dynamic Allocation method, comprising:
Determine channel width needed for voice cluster signal;
Needed for voice cluster signal, channel width is from private network total channel bandwidth resource, allocated channel bandwidth resources to Group communication devices, with transferring voice cluster signal;
By channel width Resourse Distribute remaining in private network to ether network data transfer device;
When determining that the current assigned channel width of Ethernet data transmission equipment changes, notice Ethernet data transmission equipment is according to the transmission rate of current assigned channel width adjustment Ethernet data.
A kind of Bandwidth Dynamic Allocation method, comprising:
Determine in channel, whether to there is time slot variation mark, the described timeslot number needing release of described time slot variation mark instruction, and the start time of release;
If so, then according to described time slot variation mark adjustment time slot allocation, voice cluster signal and/or Ethernet data is received according to the time slot allocation after adjustment;
If not, then voice cluster signal and/or Ethernet data is received according to former time slot allocation.
A kind of sending ending equipment, comprising:
Bandwidth determining unit, for determining channel width needed for voice cluster signal;
Bandwidth allocation element, for channel width needed for voice cluster signal from private network total channel bandwidth resource, allocated channel bandwidth resources to Group communication devices, with transferring voice cluster signal; By channel width Resourse Distribute remaining in private network to ether network data transfer device;
Notification unit, during for determining that the current assigned channel width of Ethernet data transmission equipment changes, notice Ethernet data transmission equipment is according to the transmission rate of current assigned channel width adjustment Ethernet data.
A kind of receiving device, comprising:
Whether mark determining unit, exist time slot variation mark for determining in channel, the described timeslot number needing release of described time slot variation mark instruction, and the start time of release;
Time slot adjustment unit, during for there is time slot variation mark in mark determining unit determination channel, adjusts time slot allocation according to described time slot variation mark;
Receiving element, during for there is time slot variation mark in mark determining unit determination channel, receives voice cluster signal and/or Ethernet data according to the time slot allocation after adjustment; When there is not time slot variation mark in mark determining unit determination channel, receive voice cluster signal and/or Ethernet data according to former time slot allocation.
A kind of communication system, comprises any one sending ending equipment that the embodiment of the present invention provides.
The embodiment of the present invention adopts and dynamically obtains channel width needed for voice cluster signal, when voice cluster signal has bandwidth demand, corresponding channel width resource be distributed to Group communication devices from private network total channel bandwidth resource, with transferring voice cluster signal, and channel width resource remaining in private network is distributed to Ethernet data transmission equipment entirely, to transmit Ethernet data, meanwhile, when determining that the current assigned channel width of Ethernet data transmission equipment changes, also can notify the transmission rate of Ethernet data transmission equipment according to current assigned channel width adjustment Ethernet data, the transmission rate of Ethernet data and current channel width are adapted, thus Ethernet data can be avoided to lose, strengthen the reliability of transfer of data, and raising systematic function.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the Bandwidth Dynamic Allocation method that the embodiment of the present invention provides;
Fig. 2 is another flow chart of the Bandwidth Dynamic Allocation method that the embodiment of the present invention provides;
Fig. 3 is the structural representation of pulse code modulation (PCM, Pulse code modulation) system;
Fig. 4 is the another flow chart of the Bandwidth Dynamic Allocation method that the embodiment of the present invention provides;
Fig. 5 is the frame structure schematic diagram of E1 frame in prior art;
Fig. 6 is the schematic diagram of the Time Transmission rising edge for adopting two frames;
Fig. 7 is the structural representation of the sending ending equipment that the embodiment of the present invention provides;
Fig. 8 is another structural representation of the sending ending equipment that the embodiment of the present invention provides;
Fig. 9 is the structural representation of the receiving device that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of Bandwidth Dynamic Allocation methods, devices and systems.Below be described in detail respectively.
Embodiment one,
Angle from transmitting terminal is described by the embodiment of the present invention.This transmitting terminal is specifically as follows PCM system.
A kind of Bandwidth Dynamic Allocation method, comprising: determine channel width needed for voice cluster signal, needed for voice cluster signal, channel width is from private network total channel bandwidth resource, allocated channel bandwidth resources to Group communication devices, with transferring voice cluster signal; By channel width Resourse Distribute remaining in private network to ether network data transfer device; When determining that the current assigned channel width of Ethernet data transmission equipment changes, notice Ethernet data transmission equipment is according to the transmission rate of current assigned channel width adjustment Ethernet data.
As shown in Figure 1, idiographic flow can be as follows:
101, channel width needed for voice cluster signal is determined; Such as, specifically can be as follows:
Monitoring voice cluster signal, when determining to there is voice cluster signal, then channel width needed for voice cluster calculated signals voice cluster signal; When determining to there is not voice cluster signal, then determine that needed for voice cluster signal, channel width is 0.
Wherein, needed for voice cluster calculated signals voice cluster signal, channel width specifically see prior art, can not repeat them here.
102, needed for voice cluster signal channel width from private network total channel bandwidth resource, allocated channel bandwidth resources to Group communication devices, with transferring voice cluster signal;
Wherein, the distribution of bandwidth can be directly distribute according to the size of bandwidth, also can be distribute in units of time slot, for convenience, in embodiments of the present invention, the distribution of bandwidth is all described with the example that is assigned as of time slot, and namely step 102 is specifically as follows:
Needed for voice cluster signal, bandwidth determines the timeslot number needing release, and the timeslot number discharged as required discharges time slot to Group communication devices from private network total channel bandwidth resource.
Wherein, the distribution condition of channel width resource specifically can be transmitted by fixing channel, such as, specifically by the insertion of control word and the Time slot allocation situation (i.e. the distribution condition of channel width resource) characterizing current system can be extracted, but, the insertion of control word just must take multiple time slot always, cause the waste of unnecessary bandwidth resources, therefore, in order to save bandwidth resources, improve the utilance of bandwidth resources, and saving signaling consumption, also indicating channel allocated bandwidth situation can be carried out by inserting bandwidth variations mark in the channel, so that receiving terminal receives voice cluster signal and/or Ethernet data according to this bandwidth variations mark, wherein, due in embodiments of the present invention, the distribution of bandwidth mainly can refer to the distribution of time slot, so this bandwidth variations mark is specifically as follows time slot variation mark, is mainly used in indicating the timeslot number needing release, and the start time of release, that is, after " needed for voice cluster signal, channel width is from private network total channel bandwidth resource, and allocated channel bandwidth resources are to Group communication devices " (i.e. step 102), the method can also comprise:
Needed for voice cluster signal, bandwidth determines the timeslot number needing release; Insert time slot variation mark in the channel, so that receiving terminal receives voice cluster signal and/or Ethernet data according to described time slot variation mark, wherein, the instruction of time slot variation mark needs the timeslot number of release, and the start time of release.Such as, specifically can be as follows:
(1) adopt Time Transmission trailing edges of two frames or rising edge to indicate the start time of release;
Such as, when defining time slot and needing release, then next frame starts, need the time slot of release that the time of two frames can be adopted to transmit a rising edge or trailing edge, then just start to transmit its real data, the such as content of voice cluster signal, thus make the transmission of channel can flatly transition, avoid valid data to run off.
Wherein, rising edge refers in the first frame of this two frame, needs the value of everybody (bit) in the time slot of release to be " 0 ", in the second frame of this two frame, needs the value of everybody (bit) in the time slot of release to be " 1 ".Such as, if the time slot needing release is time slot 1, time slot 2 and time slot 3, then in the first frame of this two frame, time slot 1, time slot 2 and time slot 3 pass entirely " 0 ", and in the second frame of this two frame, time slot 1, time slot 2 and time slot 3 pass entirely " 1 ".
Trailing edge refers in the first frame of this two frame, needs the value of everybody (bit) in the time slot of release to be " 1 ", in the second frame of this two frame, needs the value of everybody (bit) in the time slot of release to be " 0 ".Such as, if the time slot needing release is time slot 1, time slot 2 and time slot 3, then in the first frame of this two frame, time slot 1, time slot 2 and time slot 3 pass entirely " 1 ", and in the second frame of this two frame, time slot 1, time slot 2 and time slot 3 pass entirely " 0 ".
It should be noted that, be employing trailing edge to indicate the start time of release, or adopt rising edge to indicate the start time of release, can determine according to strategy.
(2) in the odd-numbered frame of this two frame 0 time slot reservation position on insert a binary number, wherein, this binary number instruction need release timeslot number;
Such as, if the time slot needing release is time slot 1, time slot 2 and time slot 3 totally three time slots, and adopt the first frame and the second frame to transmit rising edge or trailing edge, then in the first frame (i.e. odd-numbered frame), above can insert " 00011 " in the reservation position (reservation position is 5bit) of 0 time slot, represent that the timeslot number needing release is " 3 ".
Visible, except 0 time slot in the odd-numbered frame of this two frame, in other frame, 0 time slot still can be used for transmitting other information, so, and without the need to taking 0 time slot always, namely without the need to busy channel always, can bandwidth resources be saved, improve the utilance of bandwidth resources.
103, by channel width Resourse Distribute remaining in private network to ether network data transfer device;
Because voice cluster signal has the feature of instantaneity, so only need when there is voice cluster signal, corresponding channel width resource is distributed to voice cluster signal according to the bandwidth demand of trunking communication signal, and when there is no voice cluster signal, then channel width resources all for system is all distributed to ethernet device, to transmit Ethernet data, such as distribute to video encoder, with transmission video signal, etc., thus channel width resource can be utilized fully.
When 104, determining that the current assigned channel width of Ethernet data transmission equipment changes, notice Ethernet data transmission equipment is according to the transmission rate of current assigned channel width adjustment Ethernet data.
This is because, if the bandwidth being used for transmitting Ethernet data reduces, and the words that the transmission rate of Ethernet data is constant, just must ensure that data are not lost by buffer memory, if and the data of transmission are real time data, as picture control etc., then will there will be the phenomenons such as serious packet loss, card figure, mosaic.So in order to ensure channel width after change, the transmission that on link, data can be unimpeded, can notify ethernet device.The method, for especially applicable to video signal transmission, can be avoided occurring the phenomenons such as serious packet loss, card figure, mosaic well.
As from the foregoing, the present embodiment adopts and dynamically obtains channel width needed for voice cluster signal, when voice cluster signal has bandwidth demand, corresponding channel width resource be distributed to Group communication devices from private network total channel bandwidth resource, with transferring voice cluster signal, and channel width resource remaining in private network is distributed to Ethernet data transmission equipment entirely, to transmit Ethernet data, meanwhile, when determining that the current assigned channel width of Ethernet data transmission equipment changes, also can notify the transmission rate of Ethernet data transmission equipment according to current assigned channel width adjustment Ethernet data, the transmission rate of Ethernet data and current channel width are adapted, thus Ethernet data can be avoided to lose, strengthen the reliability of transfer of data, and raising systematic function.
Embodiment two,
Angle from receiving terminal is described by the present embodiment.This receiving terminal is specifically as follows PCM system.
A kind of Bandwidth Dynamic Allocation method, comprise: determine in channel, whether to there is time slot variation mark, if, then according to described time slot variation mark adjustment time slot allocation, receive voice cluster signal and/or Ethernet data according to the time slot allocation after adjustment, if not, then receive voice cluster signal and/or Ethernet data according to former time slot allocation, wherein, the described timeslot number needing release of time slot variation mark instruction, and the start time of release.
See Fig. 2, idiographic flow can be as follows:
201, determine whether there is time slot variation mark in channel, if so, then perform step 202, if not, then perform step 203; Wherein, the described timeslot number needing release of time slot variation mark instruction, and the start time of release;
Such as, Time Transmission trailing edges of two frames or rising edge specifically can be adopted to indicate the start time of release, and in the odd-numbered frame of this two frame 0 time slot reservation position on insert a binary number and indicate the timeslot number needing release; Then, determining whether there is time slot variation mark in channel specifically can be as follows:
The odd-numbered frame of supervisory channel, when the reservation position determining 0 time slot in this odd-numbered frame is not complete 1, determines currently whether there is a trailing edge or rising edge, if so, then determines to there is time slot variation mark, so perform step 202; If not, then determine there is not time slot variation mark, so perform step 203.
Wherein, according to existing pulse code modulation (PCM, Pulse code modulation) system related protocol regulation, in odd-numbered frame 0 time slot reservation position on be complete 1, so, if not complete 1, then represent that the value on now this reservation position is used to indicate the timeslot number of needs release, so judge whether existence trailing edge or rising edge further, to determine whether the distribution of time slot there occurs variation.
If there is time slot variation mark in 202 channels, then according to this time slot variation mark adjustment time slot allocation, receive voice cluster signal and/or Ethernet data according to the time slot allocation after adjustment; Such as, specifically can be as follows:
Determine that the binary number on this reservation position is the timeslot number needing release, according to the timeslot number that these needs discharge, and rising edge or trailing edge determine the time slot of transferring voice cluster signal, receive voice cluster signal from the time slot for transferring voice cluster signal determined;
The time slot determining except the time slot for transferring voice cluster signal is the time slot for transmitting Ethernet data, and that determines from this receives Ethernet data for the time slot transmitting Ethernet data.
If there is not time slot variation mark in 203 channels, then do not need the distribution adjusting time slot, namely receive voice cluster signal and/or Ethernet data according to former time slot allocation.
As from the foregoing, the present embodiment adopts the distribution condition characterizing time slot by inserting time slot variation mark in the channel, thus realize the dynamic assignment of bandwidth, be insert an interim time slot variation mark in the channel due to what adopt, so, relative in prior art, need to take fixing time slot to transmit channel width assignment information always, greatly save bandwidth resources, be conducive to the utilance improving bandwidth resources, and signaling consumption is little, improve the performance of system.
Embodiment three,
According to the method described by embodiment one and two, below citing is described in further detail.
In the present embodiment, will be specially video encoder with ethernet device, Ethernet data is specially vision signal, and bandwidth variations mark is specially time slot variation and is designated example and is described.
See Fig. 3, this figure is the structural representation of PCM system, this PCM system can comprise transmitting terminal and receiving terminal, wherein, transmitting terminal comprises microcontroller (MCU, Microprogramed Control Unit), video encoder, trunking communication transmitting apparatus, data processing module, speech processing module, time slot allocation module, the time slot variation mark insert module and framing module of transmitting terminal; Receiving terminal comprises receiver module, the MCU of receiving terminal, Video Decoder, trunking communication receiving equipment, odd-numbered frame monitoring modular, data bit confirm module and time slot adjusting module, specific as follows:
The MCU of transmitting terminal: mainly complete various calculating, such as carries out needing the calculating of timeslot number of release and time slot allocation etc., and controls the modules of transmitting terminal.
The MCU of receiving terminal: mainly complete various calculating, such as carries out time slot adjustment etc., and controls the modules of receiving terminal.
Video encoder: mainly complete the digital-to-analogue conversion to realtime graphic, and image compression encoding, form vision signal.
Trunking communication transmitting apparatus: send voice cluster signal.
Data processing module: process the encoded video of physical layer and complete the detection of physical layer frame structure.
Speech processing module: process the voice cluster signal of physical layer and complete the detection of physical layer frame structure.
Time slot allocation module: mainly through MCU according to the actual requirements, distributes different slot transmission vision signals and voice cluster signal.
Time slot variation mark insert module: insert time slot variation mark at transmitting terminal and carry out the change conditions of the current imminent time slot allocation of characterization system, is namely used for identifying the situation of time slot allocation.
Framing module, for voice cluster signal and vision signal are formed E1 frame or T1 frame, wherein, E1 frame and T1 frame are a kind of frames that can transmit on E1 link.
Receiver module, for the frame that receiving end/sending end sends, such as E1 frame or T1 frame.
Odd-numbered frame monitoring modular: at receiving terminal by keeping the time slot synchronised being about to current transmitting terminal change to the monitoring of odd-numbered frame, to determine the time slot of transferring voice cluster signal and the time slot for transmission video signal.
Data bit confirms module, for whether there is rising edge or trailing edge in acknowledgement channel, to confirm whether time slot allocation changes.
Time slot adjusting module, for adjusting time slot.
Trunking communication receiving equipment, for receiving voice cluster signal.
Video decoding apparatus, for receiving video signals, and carries out analyzing and decoding.
As shown in Figure 4, the execution flow process of this PCM system can be as follows:
301, the MCU of transmitting terminal monitors voice cluster signal, if there is voice cluster signal, then perform step 302, if there is not voice cluster signal, then determine that needed for voice cluster signal, channel width is 0, return to perform and monitoring step is carried out to voice cluster signal.
When 302, there is voice cluster signal, MCU channel width needed for voice cluster calculated signals voice cluster signal of transmitting terminal, then performs step 303;
303, the MCU of transmitting terminal channel width needed for voice cluster signal determines the timeslot number needing release, time slot is discharged to Group communication devices according to the timeslot number that these needs discharge by time slot allocation module, with transferring voice cluster signal, and remaining all time slots in private network, then by time slot allocation module assignment to video encoder, with transmission video signal, then perform step 304.
That is, when not having voice cluster signal, time slots all in private network all can be used for transmission video signal, and when monitoring voice cluster signal, then can distribute corresponding time slot to it according to the actual demand of voice cluster signal; Such as, if have 30 time slots in private network, then when trunking communication does not have voice cluster signal, MCU will pass through time slot allocation module, 30 time slots are distributed to transmission of video completely, and when having monitored voice cluster signal, then MCU can discharge the time slot of respective numbers from 30 time slots, to transmit this voice cluster signal.
304, determine whether the current assigned channel width of video encoder changes, if change, then the MCU of transmitting terminal also needs the transmission rate notifying video encoder adjustment vision signal, thus vision signal can be transmitted glibly, video image can not be influenced because of the change of bandwidth, and perform step 305; If not change, then return to perform and monitoring step is carried out to voice cluster signal, namely return and perform step 301.
305, time slot variation mark insert module inserts time slot variation mark in the channel according to the situation of time slot allocation, and wherein, the instruction of time slot variation mark needs the timeslot number of release, and the start time of release.Such as, specifically can be as follows:
(1) adopt Time Transmission trailing edges of two frames or rising edge to indicate the start time of release;
(2) in the odd-numbered frame of this two frame 0 time slot reservation position on insert a binary number, wherein, this binary number instruction need release timeslot number, need release timeslot number start at from 1 time slot.
See Fig. 5, this figure is the frame structure schematic diagram of E1 frame in prior art, as shown in Figure 5, in existing E1 frame, 0 time slot of even frame is mainly used to transmit slot synchronization information, 0 time slot of odd-numbered frame is then mainly used to transferring frames synchronizing information, wherein, 0 time slot of odd-numbered frame has 5 and retains position, and occurrence is 1, therefore, these 5 can be utilized to retain position and to indicate the timeslot number needing release.Such as, if need now to discharge time slot 1, time slot 2 and time slot 3 be totally 3 time slots, then now, low 5 (namely the retaining position) of 0 time slot of odd-numbered frame should be: 00011, then time slot 1, the front cross frame of time slot 2 and time slot 3 is respectively full 0 and complete 1 (i.e. rising edge), or, time slot 1, the front cross frame of time slot 2 and time slot 3 is respectively complete 1 and full 0 (i.e. trailing edge), see Fig. 6, this figure is the schematic diagram of a Time Transmission rising edge of employing two frame, as seen from Figure 6, in the 0th frame, time slot 1, in time slot 2 and time slot 3, everybody value is 0, and in the 1st frame, time slot 1, in time slot 2 and time slot 3, everybody value is 1, and, because the 1st frame is odd-numbered frame, so low 5 (namely the retaining position) of 0 time slot of the 1st frame are: 00011.
306, time slot variation mark and voice cluster signal and vision signal encapsulate according to the situation of time slot allocation by framing module, form E1 frame or T1 frame, and send receiving terminal to by E1 link.
307, after the receiver module of receiving terminal receives E1 frame or T1 frame, by the odd-numbered frame of odd-numbered frame monitoring module monitors channel, whether the reservation position determining 0 time slot in this odd-numbered frame is complete 1, if in odd-numbered frame 0 time slot reservation position on be complete 1, the odd-numbered frame of supervisory channel is then continued by odd-numbered frame monitoring modular, if in odd-numbered frame 0 time slot reservation position on be not complete 1, then confirm module determines currently whether there is a trailing edge or rising edge by data bit, if there is a trailing edge or rising edge, then represent time slot allocation change, so perform step 308; If there is not a trailing edge and there is not a rising edge, then determine to there is time slot variation mark (namely representing that time slot allocation does not have change), so return the step performing the odd-numbered frame being continued supervisory channel by odd-numbered frame monitoring modular.
308, the MCU of receiving terminal adjusts time slot by time slot adjusting module according to time slot variation mark, and receive voice cluster signal and vision signal according to the time slot allocation after adjustment, then return and perform step 307, namely by the odd-numbered frame of odd-numbered frame monitoring module monitors channel.Specifically can be as follows:
Determine that this odd-numbered frame binary number retained on position is the timeslot number needing release, according to the timeslot number that these needs discharge, and rising edge or trailing edge determine the time slot of transferring voice cluster signal, receive voice cluster signal from the time slot for transferring voice cluster signal determined;
The time slot determining except the time slot for transferring voice cluster signal is the time slot for transmission video signal, from the time slot receiving video signals for transmission video signal that this is determined.
As from the foregoing, the present embodiment adopts when voice cluster signal and the public link of vision signal, voice cluster signal is monitored, when there is not voice cluster signal, bandwidth resources all in private network are all used for transmission video signal, and when there is voice cluster signal, then discharge corresponding time slot to voice cluster signal, and notify the transmission rate of video encoder adjustment vision signal, to adapt to current channel width, thus can bandwidth resources saved and improve on the basis of bandwidth resources utilance, there is card figure in the image avoiding loss of data to cause, the generation of the phenomenons such as mosaic, ensure that the quality of transmission of video.And, insert the situation that an interim time slot variation mark indicates time slot allocation in the channel due to what adopt, so, relative to needing to take fixing time slot in prior art to transmit for channel width assignment information always, not only greatly reduce signaling consumption little, and the utilance of bandwidth resources and raising bandwidth resources can be saved further, improve the performance of system on the whole.
Embodiment four,
In order to implement above method better, the embodiment of the present invention also correspondingly provides a kind of sending ending equipment, can be used as the transmitting terminal of the embodiment of the present invention, as shown in Figure 7, this sending ending equipment comprises bandwidth determining unit 401, bandwidth allocation element 402 and notification unit 403.
Bandwidth determining unit 401, for determining channel width needed for voice cluster signal;
Bandwidth allocation element 402, for channel width needed for the voice cluster signal determined according to bandwidth determining unit 401 from private network total channel bandwidth resource, allocated channel bandwidth resources to Group communication devices, with transferring voice cluster signal; By channel width Resourse Distribute remaining in private network to ether network data transfer device;
Notification unit 403, during for determining that the current assigned channel width of Ethernet data transmission equipment changes, notice Ethernet data transmission equipment is according to the transmission rate of current assigned channel width adjustment Ethernet data.
Wherein, bandwidth determining unit can comprise monitoring subelement and determine subelement;
Monitoring subelement, for monitoring voice cluster signal;
Determine subelement, during for determining to there is voice cluster signal, channel width needed for voice cluster calculated signals voice cluster signal; When determining to there is not voice cluster signal, determine that needed for voice cluster signal, channel width is 0.
Wherein, the distribution of bandwidth can be directly distribute according to the size of bandwidth, also can be distribute in units of time slot, and for convenience, in embodiments of the present invention, the distribution of bandwidth is all described with the example that is assigned as of time slot, that is:
Bandwidth allocation element 402, determines specifically for bandwidth needed for voice cluster signal the timeslot number needing release, discharges time slot to Group communication devices, with transferring voice cluster signal according to the described timeslot number of release that needs from private network total channel bandwidth resource;
Wherein, the distribution condition of channel width resource specifically can be transmitted by fixing channel, such as, specifically by the insertion of control word and the Time slot allocation situation (i.e. the distribution condition of channel width resource) characterizing current system can be extracted, but, the insertion of control word just must take multiple time slot always, cause the waste of unnecessary bandwidth resources, therefore, in order to save bandwidth resources, improve the utilance of bandwidth resources, and saving signaling consumption, also indicating channel allocated bandwidth situation can be carried out by inserting bandwidth variations mark in the channel, so that receiving terminal receives voice cluster signal and/or Ethernet data according to this bandwidth variations mark, namely as shown in Figure 8, this sending ending equipment can also comprise mark plug-in unit 404,
Mark plug-in unit 404, for inserting time slot variation mark in the channel, so that receiving terminal receives voice cluster signal and/or Ethernet data according to described time slot variation mark, wherein, the described timeslot number needing release of time slot variation mark instruction, and the start time of release.
Such as, mark plug-in unit 404, specifically may be used for Time Transmission trailing edge of employing two frame or rising edge to indicate the start time of release, and in the odd-numbered frame of described two frames 0 time slot reservation position on insert a binary number, wherein, the described timeslot number needing release of this binary number instruction.
Wherein, rising edge refers in the first frame of this two frame, needs the value of everybody (bit) in the time slot of release to be " 0 ", in the second frame of this two frame, needs the value of everybody (bit) in the time slot of release to be " 1 ".Such as, if the time slot needing release is time slot 1, time slot 2 and time slot 3, then in the first frame of this two frame, time slot 1, time slot 2 and time slot 3 pass entirely " 0 ", and in the second frame of this two frame, time slot 1, time slot 2 and time slot 3 pass entirely " 1 ".
Trailing edge refers in the first frame of this two frame, needs the value of everybody (bit) in the time slot of release to be " 1 ", in the second frame of this two frame, needs the value of everybody (bit) in the time slot of release to be " 0 ".Such as, if the time slot needing release is time slot 1, time slot 2 and time slot 3, then in the first frame of this two frame, time slot 1, time slot 2 and time slot 3 pass entirely " 1 ", and in the second frame of this two frame, time slot 1, time slot 2 and time slot 3 pass entirely " 0 ".
This sending ending equipment is specifically as follows PCM system.During concrete enforcement, above unit can as independently entity realization, also combination in any can be carried out, realize as same or several entities, such as, bandwidth determining unit 401 and notification unit 403 can be realized by the MCU of the transmitting terminal in embodiment three, and bandwidth allocation element 402 can be realized by the time slot allocation module in embodiment three, mark plug-in unit 404 can change mark insert module by the time slot in embodiment three and realize, etc.
The concrete enforcement of above unit see embodiment of the method above, can not repeat them here.
As from the foregoing, the sending ending equipment of the present embodiment adopts and dynamically obtains channel width needed for voice cluster signal, when voice cluster signal has bandwidth demand, from private network total channel bandwidth resource, corresponding channel width resource is distributed to Group communication devices by bandwidth allocation element 402, with transferring voice cluster signal, and channel width resource remaining in private network is distributed to Ethernet data transmission equipment entirely, to transmit Ethernet data, meanwhile, when determining that the current assigned channel width of Ethernet data transmission equipment changes, notify that Ethernet data transmission equipment adjusts the transmission rate of Ethernet data according to current assigned channel width by notification unit 403, the transmission rate of Ethernet data and current channel width are adapted, thus Ethernet data can be avoided to lose, strengthen the reliability of transfer of data, and raising systematic function.
And, inserts an interim time slot in the channel by mark plug-in unit 404 and change owing to adopting the situation identifying and indicate time slot allocation, so, relative to needing to take fixing time slot in prior art to transmit for channel width assignment information always, not only greatly reduce signaling consumption little, and the utilance of bandwidth resources and raising bandwidth resources can be saved further, improve the performance of system on the whole.
Embodiment five,
Accordingly, the embodiment of the present invention also provides a kind of receiving device, can be used as the receiving terminal of the embodiment of the present invention, and as shown in Figure 9, this receiving device comprises mark determining unit 501, time slot adjustment unit 502 and receiving element 503;
Whether mark determining unit 501, exist time slot variation mark for determining in channel, the described timeslot number needing release of described time slot variation mark instruction, and the start time of release;
Time slot adjustment unit 502, for when identifying determining unit 501 and determining to there is time slot variation mark in channel, according to described time slot variation mark adjustment time slot allocation;
Receiving element 503, for when identifying determining unit 501 and determining to there is time slot variation mark in channel, receives voice cluster signal and/or Ethernet data according to the time slot allocation after adjustment; When identifying determining unit 501 and determining there is not time slot variation mark in channel, voice cluster signal and/or Ethernet data is received according to former time slot allocation, that is, if time slot allocation does not change, then receive voice cluster signal and/or Ethernet data according to original time slot allocation mode.
Wherein, Time Transmission trailing edges of two frames or rising edge specifically can be adopted to indicate the start time of release, and in the odd-numbered frame of this two frame 0 time slot reservation position on insert a binary number and indicate the timeslot number needing release; Then:
Mark determining unit 501, specifically may be used for the odd-numbered frame of supervisory channel, when the reservation position determining 0 time slot in this odd-numbered frame is not complete 1, determine currently whether there is a trailing edge or rising edge, if there is a trailing edge or rising edge, then determine to there is time slot variation mark, if there is not a trailing edge and there is not a rising edge, then determine there is not time slot variation mark.
Time slot adjustment unit 502, specifically may be used for determining that the binary number on the reservation position of 0 time slot in this odd-numbered frame is the timeslot number needing release, according to the timeslot number that these needs discharge, and rising edge or trailing edge determine the time slot of transferring voice cluster signal, receive voice cluster signal from this time slot for transferring voice cluster signal; The time slot determining except the time slot for transferring voice cluster signal is the time slot for transmitting Ethernet data, receives Ethernet data from this for the time slot transmitting Ethernet data.
This receiving device is specifically as follows PCM system.During concrete enforcement, above unit can as independently entity realization, also combination in any can be carried out, realize as same or several entities, such as, by the odd-numbered frame monitoring modular in embodiment three and data bit, mark determining unit 501 can confirm that module realizes, time slot adjustment unit 502 can be realized by the time slot adjusting module in embodiment three, receiving element 503 can be realized by the receiver module in embodiment three, etc.
The concrete enforcement of above unit see embodiment of the method above, can not repeat them here.
As from the foregoing, the receiving device of the present embodiment adopts the distribution condition characterizing time slot by inserting time slot variation mark in the channel, thus realize the dynamic assignment of bandwidth, insert an interim time slot variation mark in the channel due to what adopt, so, relative in prior art, need to take fixing time slot to transmit channel width assignment information always, greatly save bandwidth resources, be conducive to the utilance improving bandwidth resources, and signaling consumption is little, improve the performance of system.
Embodiment six,
Accordingly, the embodiment of the present invention also provides a kind of communication system, comprises any one sending ending equipment that the embodiment of the present invention provides, and wherein, this sending ending equipment specifically see embodiment four, can not repeat them here.
In addition, this communication system can also comprise any one receiving device that the embodiment of the present invention provides, and wherein, this sending ending equipment specifically see embodiment five, can not repeat them here.
This communication system is specifically as follows PCM system.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer-readable recording medium, storage medium can comprise: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc.
Above a kind of Bandwidth Dynamic Allocation methods, devices and systems that the embodiment of the present invention provides are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for those skilled in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. a Bandwidth Dynamic Allocation method, is characterized in that, comprising:
Determine channel width needed for voice cluster signal;
Needed for voice cluster signal, channel width is from private network total channel bandwidth resource, allocated channel bandwidth resources to Group communication devices, with transferring voice cluster signal;
By channel width Resourse Distribute remaining in private network to ether network data transfer device;
When determining that the current assigned channel width of Ethernet data transmission equipment changes, notice Ethernet data transmission equipment is according to the transmission rate of current assigned channel width adjustment Ethernet data;
Wherein, described needed for voice cluster signal channel width from private network total channel bandwidth resource, allocated channel bandwidth resources comprise to Group communication devices: needed for voice cluster signal, bandwidth determines the timeslot number that needs discharge, and discharge time slot to Group communication devices according to the described timeslot number of release that needs from private network total channel bandwidth resource;
Described needed for voice cluster signal channel width from private network total channel bandwidth resource, allocated channel bandwidth resources also comprise to after Group communication devices: insert time slot variation mark in the channel, so that receiving terminal receives voice cluster signal and/or Ethernet data according to described time slot variation mark, the described timeslot number needing release of described time slot variation mark instruction, and the start time of release;
Described insertion time slot variation mark, comprising: adopt Time Transmission trailing edges of two frames or rising edge to indicate the start time of release; In the odd-numbered frame of described two frames 0 time slot reservation position on insert a binary number, the described timeslot number needing release of described binary number instruction.
2. method according to claim 1, is characterized in that, describedly determines that needed for voice cluster signal, channel width comprises:
Monitoring voice cluster signal;
When determining to there is voice cluster signal, channel width needed for voice cluster calculated signals voice cluster signal;
When determining to there is not voice cluster signal, determine that needed for voice cluster signal, channel width is 0.
3. a Bandwidth Dynamic Allocation method, is characterized in that, comprising:
Determine whether there is time slot variation mark in channel, the instruction of described time slot variation mark needs the timeslot number of release, and the start time of release;
If so, then according to described time slot variation mark adjustment time slot allocation, voice cluster signal and/or Ethernet data is received according to the time slot allocation after adjustment;
If not, then voice cluster signal and/or Ethernet data is received according to former time slot allocation;
Wherein, describedly determine whether to exist in channel time slot variation mark, comprising: the odd-numbered frame of supervisory channel; When the reservation position determining 0 time slot in described odd-numbered frame is not complete 1, determine currently whether there is a trailing edge or rising edge; If so, then determine to there is time slot variation mark; If not, then determine there is not time slot variation mark;
Wherein, described according to described time slot variation mark adjustment time slot allocation, voice cluster signal and/or Ethernet data is received according to the time slot allocation after adjustment, comprise: determine that the binary number on described reservation position is the timeslot number that needs discharge, according to the described timeslot number needing release, and rising edge or trailing edge determine the time slot of transferring voice cluster signal, receive voice cluster signal from the described time slot for transferring voice cluster signal; The time slot determining except the time slot for transferring voice cluster signal is the time slot for transmitting Ethernet data, receives Ethernet data from the described time slot for transmitting Ethernet data.
4. a sending ending equipment, is characterized in that, comprising:
Bandwidth determining unit, for determining channel width needed for voice cluster signal;
Bandwidth allocation element, for channel width needed for voice cluster signal from private network total channel bandwidth resource, allocated channel bandwidth resources to Group communication devices, with transferring voice cluster signal; By channel width Resourse Distribute remaining in private network to ether network data transfer device;
Notification unit, during for determining that the current assigned channel width of Ethernet data transmission equipment changes, notice Ethernet data transmission equipment is according to the transmission rate of current assigned channel width adjustment Ethernet data;
Wherein, described bandwidth allocation element, determine specifically for bandwidth needed for voice cluster signal the timeslot number needing release, from private network total channel bandwidth resource, discharge time slot to Group communication devices, with transferring voice cluster signal according to the described timeslot number of release that needs;
Mark plug-in unit, for inserting time slot variation mark in the channel, so that receiving terminal receives voice cluster signal and/or Ethernet data according to described time slot variation mark, the described timeslot number needing release of described time slot variation mark instruction, and the start time of release; Wherein, described insertion time slot variation mark comprises: adopt Time Transmission trailing edges of two frames or rising edge to indicate the start time of release; In the odd-numbered frame of described two frames 0 time slot reservation position on insert a binary number, the described timeslot number needing release of described binary number instruction.
5. sending ending equipment according to claim 4, is characterized in that, described bandwidth determining unit comprises:
Monitoring subelement, for monitoring voice cluster signal;
Determine subelement, during for determining to there is voice cluster signal, channel width needed for voice cluster calculated signals voice cluster signal; When determining to there is not voice cluster signal, determine that needed for voice cluster signal, channel width is 0.
6. a receiving device, is characterized in that, comprising:
Whether mark determining unit, exist time slot variation mark for determining in channel, the instruction of described time slot variation mark needs the timeslot number of release, and the start time of release;
Time slot adjustment unit, during for there is time slot variation mark in mark determining unit determination channel, adjusts time slot allocation according to described time slot variation mark;
Receiving element, during for there is time slot variation mark in mark determining unit determination channel, receives voice cluster signal and/or Ethernet data according to the time slot allocation after adjustment; When there is not time slot variation mark in mark determining unit determination channel, receive voice cluster signal and/or Ethernet data according to former time slot allocation;
Wherein, described mark determining unit, specifically for the odd-numbered frame of supervisory channel, when the reservation position determining 0 time slot in described odd-numbered frame is not complete 1, determine currently whether there is a trailing edge or rising edge, if so, then determine to there is time slot variation mark, if not, then determine there is not time slot variation mark;
Wherein, described time slot adjustment unit, specifically for determining that the binary number on described reservation position is the timeslot number needing release, according to the described timeslot number needing release, and rising edge or trailing edge determine the time slot of transferring voice cluster signal, receive voice cluster signal from the described time slot for transferring voice cluster signal; The time slot determining except the time slot for transferring voice cluster signal is the time slot for transmitting Ethernet data, receives Ethernet data from the described time slot for transmitting Ethernet data.
7. a communication system, is characterized in that, comprises any one sending ending equipment described in claim 4 or 5.
8. communication system according to claim 7, is characterized in that, also comprises receiving device according to claim 6.
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| CN104053161B (en) * | 2013-03-14 | 2018-03-09 | 北京信威通信技术股份有限公司 | A kind of method for supporting cluster and video to work simultaneously in multicarrier system |
| CN103581841B (en) * | 2013-11-28 | 2016-08-17 | 哈尔滨工业大学 | Eat dishes without rice or wine to realize the system and method for wide and narrow strip Resource dynamic allocation based on arrowband |
| US10623330B2 (en) * | 2016-09-23 | 2020-04-14 | Google Llc | Distributed bandwidth allocation and throttling |
| CN108683614B (en) * | 2018-05-15 | 2021-11-09 | 国网江苏省电力有限公司苏州供电分公司 | Virtual reality equipment cluster bandwidth allocation device based on threshold residual error network |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571348A (en) * | 2003-07-21 | 2005-01-26 | 中兴通讯股份有限公司 | An apparatus and method for implementing data dynamic alignment bandwidth in transmission equipment |
| CN101610161A (en) * | 2008-06-17 | 2009-12-23 | 爱动摩杰（北京）科技有限公司 | A kind of ensuring method in Web conference sound intermediate frequency transmission real-time |
| CN101729939A (en) * | 2008-10-31 | 2010-06-09 | 中兴通讯股份有限公司 | Method and system for distributing passive optical network bandwidth |
-
2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571348A (en) * | 2003-07-21 | 2005-01-26 | 中兴通讯股份有限公司 | An apparatus and method for implementing data dynamic alignment bandwidth in transmission equipment |
| CN101610161A (en) * | 2008-06-17 | 2009-12-23 | 爱动摩杰（北京）科技有限公司 | A kind of ensuring method in Web conference sound intermediate frequency transmission real-time |
| CN101729939A (en) * | 2008-10-31 | 2010-06-09 | 中兴通讯股份有限公司 | Method and system for distributing passive optical network bandwidth |
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