CN102340389B - Wireless digital communication method - Google Patents
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- CN102340389B CN102340389B CN201110295132.8A CN201110295132A CN102340389B CN 102340389 B CN102340389 B CN 102340389B CN 201110295132 A CN201110295132 A CN 201110295132A CN 102340389 B CN102340389 B CN 102340389B
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Abstract
The invention discloses a wireless digital communication method, which relates to the technical field of wireless communication. By the method, the communication flexibility of a wireless audio transmission system can be improved, the resource utilization rate of the system can be increased and the power consumption of the system can be effectively reduced. The wireless digital communication method provided by the embodiment of the invention comprises the following steps of: receiving frame structure regulation information from a transmitter, wherein the frame structure regulation information comprises radio frequency packet regulation information and is generated according to communication state indication information when the transmitter learns that a communication state is changed, and the communication state indication information indicates a receiver state and/or a channel state; and regulating a used frame structure by utilizing the frame structure regulation information, and performing data communication with the transmitter according to the regulated frame structure. The scheme is applied to a plurality of wireless communication systems with relatively higher requirements on transmission quality.
Description
Technical field
The present invention relates to wireless communication technology field, especially relate to a kind of Wireless digital communication method.
Background technology
Along with the progress of wireless transmission technology, particularly based on 2.4GHz frequency range, integrate the appearance of the SOC (system on a chip) of the features such as low-power consumption, low radiation, low cost, make wireless transmission technology become possibility for wireless digital audio product in a large number.
Wireless digital audio transmission techniques mainly comprises the three class Radio Transmission Technologys based on Wireless Fidelity (WiFi), bluetooth and 2.4G at present.Wherein, the wireless audio frequency transmission function technology based on WiFi has advantages of high bandwidth, but because WiFi transmitting power is larger, causes the problem such as highly energy-consuming and high radiation; Wireless audio frequency transmission function technology based on bluetooth is relatively ripe, but in the synchronous transmission of audio frequency, has higher time delay; Radio Transmission Technology based on 2.4G has the advantages such as low-power consumption, low radiation and low cost.
Because the Related product of wireless digital audio system generally uses powered battery, so system is stricter to the requirement of power consumption, and the feature that the nearly body of wireless digital earphone system uses has also proposed the requirement of low radiation to system, moreover, wireless digital earphone system, as a kind of system of voice data synchronous transmission, also requires wireless system to have low delay and high reliability.To sum up, in low-power consumption, low delay, the wireless digital earphone system of lower present stage of requirement of low radiation adopts 2.4G transmission technology mostly.
But the wireless audio frequency transmission function technology based on 2.4G is also not overripened at present.Present stage the Radio Transmission Technology based on 2.4G audio system in, the main frame structure that adopts fixed RF bag, for pre-specified the used frame structure of the earphone end in system is also the reserved corresponding bandwidth resources of this earphone end, in the time carrying out radio communication, on bandwidth reserved, transmit voice data according to predetermined frame structure.
Existing this processing mode has caused the waste of system bandwidth resource, increase system power dissipation, for example, existing wireless audio communication mode is only for the communication system of fixed scene, set frame structure is also only applicable to transmitting terminal and the earphone end in this fixed scene in advance, communication mode underaction, and in the time that communication scenes changes, the frame structure setting in advance probably cannot be applicable to new scene again, causes carrying out the transmission of voice data; And in existing frame structure for packet arranges multiple retransmission packets, and in the time of packet normal transmission, without the re-transmission of carrying out data, existing this processing mode, under any circumstance, in each frame transmitting, all comprise multiple retransmission packets, both wasted the bandwidth of system, increased again the power consumption of transmitting terminal and earphone end.
Summary of the invention
The embodiment of the present invention provides a kind of Wireless digital communication method, can improve the flexibility of communicating by letter in wireless audio transmission system, improves the utilance of system resource, effectively reduces the power consumption of system.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides a kind of Wireless digital communication method, and the method comprises:
Receive the frame structure adjustment information from transmitting terminal, described frame structure adjustment information comprises radio frequency bag adjustment information, described frame structure adjustment information is that transmitting terminal generates according to communications status indication information in the time knowing that communications status changes, described communications status indication information instruction receiving-end state;
The frame structure that utilizes the adjustment of described frame structure adjustment information to use, and carry out data communication according to frame structure and described transmitting terminal after adjusting.
Further, in the time that transmitting terminal generates described frame structure adjustment information according to the receiving-end state of the receiving terminal that connected, utilize the step of the frame structure that the adjustment of frame structure adjustment information uses, specifically comprise:
Indicating at least one first receiving terminal when a upper communications status indication information connects, and current communications status indication information indicates described the first receiving terminal to disconnect, when the radio frequency bag adjustment information instruction generating is deleted corresponding to the response packet of described the first receiving terminal in frame structure, utilize the radio frequency bag adjustment information receiving in frame structure, to set up the retransmission packet that is not more than the shared radio frequency bandwidth of all the first receiving terminal response packets, and/or, in frame structure, adjust the sequential position that sends response packet; Or,
Indicating at least one second receiving terminal when a upper communications status indication information does not connect, and current communications status indication information indicates described the second receiving terminal successfully to connect, when the radio frequency bag adjustment information instruction generating is added corresponding to the response packet of described the second receiving terminal in frame structure, utilize the radio frequency bag adjustment information receiving in frame structure, to delete the retransmission packet that is not less than the shared radio frequency bandwidth of all the second receiving terminal response packets, and/or, adjust the sequential position that sends response packet in frame structure.
Further, when the receiving-end state that whether successfully receives corresponding data bag according to receiving terminal at transmitting terminal generates described frame structure adjustment information, utilize the step of the frame structure that the adjustment of described frame structure adjustment information uses also specifically to comprise:
In the retransmission packet sphere of action of described communications status indication information instruction respective frame, all packets all successfully receive, and in each frame period, utilize in the frame structure after the radio frequency bag adjustment information adjustment receiving and do not comprise retransmission packet; Or,
In the retransmission packet sphere of action of described communications status indication information instruction respective frame, there is data-bag lost situation, in each frame period, utilize the radio frequency bag adjustment information receiving to know adopted retransmission packet sequence, and in frame structure, adjust the position of the corresponding packet of retransmission packet according to this retransmission packet sequence.
Further, also indicating channel state of described communications status indication information; In the time that transmitting terminal generates described frame structure adjustment information according to the channel status of the current channel quality of the communication system getting, above-mentioned frame structure adjustment information also comprises relative position adjustment information, the instruction of described relative position adjustment information is for cycle of carrying out frame structure saltus step sequential position with respect to the cycle for sending respective frame structural adjustment information, the frame structure that utilizes the adjustment of described frame structure adjustment information to use, and according to adjust after frame structure and described transmitting terminal carry out data communication to step also specifically comprise:
The frame structure using according to the frame structure adjustment information adjustment consistent with transmitting terminal, and in the time that the cycle of the execution frame structure saltus step consistent with transmitting terminal arrives, according to the frame structure after adjusting, receive the radio frequency bag from transmitting terminal, send response packet to transmitting terminal.
Further, this method is also included in each frame period, the frame structure using according to the frame structure adjustment information adjustment consistent with transmitting terminal, and according to the frame structure after adjusting, receive the radio frequency bag from transmitting terminal, send response packet to transmitting terminal.
Further, this method also comprises: in the time comprising retransmission packet from the present frame of transmitting terminal, if according to the statistics of the radio frequency bag to having received, confirm does not have data-bag lost in present frame retransmission range, rejects the retransmission packet from transmitting terminal; Or,
When receiving after at least one retransmission packet of present frame, while confirming there is no data-bag lost in present frame retransmission range, refusal continues to receive the retransmission packet from transmitting terminal; Or,
When the retransmission packet sequence adopting according to known transmitting terminal, while not comprising required retransmission packet in the retransmission packet of confirming not receive in present frame, rejection is from the retransmission packet of transmitting terminal.
Further, this method also comprises: to the every frame radio frequency bag from transmitting terminal receiving, repeatedly retransmit response packet to transmitting terminal; Wherein, in the time there is multiple receiving terminal, repeatedly retransmit the response packet of each receiving terminal according to set sequential position to transmitting terminal, two response packets adjacent in set sequential position belong to different receiving terminals.
Further, this method also comprises: the frame structure adjustment information that receiving end/sending end issues by packet, and described frame structure adjustment information is carried in described packet; Or receiving end/sending end wraps the frame structure adjustment information issuing by control, described control bag generates according to frame structure adjustment information.
From above-mentioned, the technical scheme of the embodiment of the present invention provides a kind of novel wireless digital voice communication scheme, this scheme is according to the practical communication state of the system getting, make corresponding adjustment strategy, and pass through generated frame structure adjustment information make receiving terminal and transmitting terminal know adjust strategy, thereby realize a kind of communication that dynamically changes the frame structure using according to communications status, significantly improve the flexibility of wireless audio transmission system, ensure the successful realization of multiple communication scenes subaudio frequency communication, improved user's experience.
Further, this programme is by the dynamic adjustment to frame structure, the particular content of the radio frequency bag of required transmission can be set flexibly, thereby control the required system resource taking, can meet under the requirement of high reliability, low delay and low radiation, reduce to greatest extent system power dissipation, improve the utilance of system resource, there is stronger feasibility and wider application prospect.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of Wireless digital communication method schematic flow sheet that Fig. 1 provides for the embodiment of the present invention one;
The basic framework schematic diagram of a kind of wireless digital earphone system that Fig. 2 provides for the embodiment of the present invention two;
The communication means schematic flow sheet of a kind of wireless digital earphone that Fig. 3 provides for the embodiment of the present invention two;
The frame structure schematic diagram using in the communication of a kind of wireless digital earphone that Fig. 4 provides for the embodiment of the present invention two;
After connecting, new earphone end of scene with respect to Fig. 5 that Fig. 5 provides for the embodiment of the present invention two and transmitting terminal adjust the frame structure schematic diagram obtaining;
Earphone end of scene with respect to Fig. 6 that Fig. 6 provides for the embodiment of the present invention two is connected with transmitting terminal loses the rear frame structure schematic diagram obtaining of adjusting;
The schematic diagram of the frame structure that a kind of transition stage that Fig. 7 provides for the embodiment of the present invention two adopts;
Frame structure schematic diagram when the transmitting terminal that Fig. 8 provides for the embodiment of the present invention two connects multiple earphone end;
A kind of frame structure schematic diagram when the employing that Fig. 9 provides for the embodiment of the present invention two repeatedly retransmits response packet;
Another frame structure schematic diagram when the employing that Figure 10 provides for the embodiment of the present invention two repeatedly retransmits response packet;
Receiving device structural representation in a kind of radio digital communication that Figure 11 provides for the embodiment of the present invention three.
Embodiment
Below in conjunction with accompanying drawing of the present invention, technical scheme of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
The data transmission problems that the communication means that this programme provides solves, it is a basic problem in radio digital communication field, its two ends that come from radio digital communication are separate individualities, so need to realize a kind of communication means in the both sides of communication link, the method ensures the normal work of communication link, and ensures normal transmission and the reception of radio frequency bag.Be appreciated that this programme is not limited to wireless headphone system, the communication system also applicable to other, transmission quality being had higher requirements, such as wireless video system, wireless data acquisition system or wireless system for transmitting data etc.
Technical conceive of the present invention is mainly according to the communications status in wireless digital earphone system, as the quantity of earphone end in system, communication channel quality etc., dynamically change the frame structure of periodic transfer radio frequency bag in communication link, thereby realize a kind of high-quality of wireless digital earphone system use, the communication means of high reliability, improve the utilance of wireless transmission bandwidth and effectively reduce system power dissipation.
The embodiment of the present invention one provides a kind of Wireless digital communication method, and referring to Fig. 1, the method comprises:
11: receive the frame structure adjustment information from transmitting terminal, this frame structure adjustment information comprises radio frequency bag adjustment information, this frame structure adjustment information is that transmitting terminal generates according to communications status indication information in the time knowing that communications status changes, this communications status indication information instruction receiving-end state and/or channel status.
12: the frame structure that utilizes the adjustment of frame structure adjustment information to use, and carry out data communication according to frame structure and transmitting terminal after adjusting.
Above-mentioned steps 11 and step 12 can be realized by the equipment of end side, as earphone end equipment.
Further, above-mentioned receiving-end state can be indicated the receiving terminal connecting with transmitting terminal, under the scene in the communication of wireless digital earphone, above-mentioned receiving-end state is earphone end state, the earphone end that this earphone end state instruction and transmitting terminal connect, or above-mentioned receiving-end state also can indicate receiving terminal whether successfully to receive corresponding data bag.The current channel quality of above-mentioned channel status instruction communication system.
Further, under same period, when transmitting terminal and the structural adjustment of receiving terminal conducting frame, adopt frame structure adjustment information should be consistent, to ensure that transmitting terminal and receiving terminal adopt identical frame structure to communicate in the radio frequency bag transmission of same period.
Be appreciated that, be applicable to the scene of asynchronous transmission for some, in the radio frequency bag transmission of same period, transmitting terminal and receiving terminal can adopt not identical frame structure to communicate, under same period, when transmitting terminal and the structural adjustment of receiving terminal conducting frame, adopt frame structure adjustment information should can be not identical yet.
From above-mentioned, the technical scheme of the embodiment of the present invention provides a kind of novel wireless digital voice communication scheme, this scheme is according to the practical communication state of the system getting, make corresponding adjustment strategy, and pass through generated frame structure adjustment information make receiving terminal and transmitting terminal know adjust strategy, thereby realize a kind of communication that dynamically changes the frame structure using according to communications status, significantly improve the flexibility of wireless audio transmission system, ensure the successful realization of multiple communication scenes subaudio frequency communication, improved user's experience.
Further, this programme is by the dynamic adjustment to frame structure, the particular content of the radio frequency bag of required transmission can be set flexibly, thereby control the required system resource taking, can meet under the requirement of high reliability, low delay and low radiation, reduce to greatest extent system power dissipation, improve the utilance of system resource, there is stronger feasibility and wider application prospect.
For the ease of the clear technical scheme of describing the embodiment of the present invention, in inventive embodiment, adopt the printed words such as " first ", " second ", " 1 ", " 2 " with number designation, the essentially identical identical entry of function and efficacy or similar item to be distinguished, it will be appreciated by those skilled in the art that these printed words and number designation do not limit quantity and execution order.
Below in conjunction with accompanying drawing 2 to 10, the Wireless digital communication method that the embodiment of the present invention two is provided describes.In embodiments of the present invention, the scene of carrying out radio digital communication taking transmitting terminal and earphone end describes as example, be appreciated that, this programme is not limited to wireless digital earphone communication system, also go for other communication systems, as wireless video system, wireless data acquisition system or wireless system for transmitting data etc.For the ease of clearly demonstrating this programme, referring to Fig. 2, first the embodiment of the present invention application scenarios is described below.
Fig. 2 has shown a kind of basic framework schematic diagram of wireless digital earphone system.This wireless digital earphone system is made up of a transmitting terminal 100 and multiple earphone end, and if earphone end 1 is to earphone end N, N is label, and the numerical value of N can change according to the actual conditions in system.Transmitting terminal 100 comprises voice data radio frequency bag by radio-frequency module 101 to each earphone end transmission, can comprise packet 103(or control bag 103 in this radio frequency bag) and receive the response packet 102 that each earphone end returns.Each earphone end is by radio-frequency module separately, as radio-frequency module 111, radio-frequency module 121 receiving end/sending ends send to the packet 103(in the middle of channel or control bag 103) and return to response packet 102 to transmitting terminal.
Be appreciated that, in the time that the fundamental block diagram shown in Fig. 2 is applicable to other radio digital communication systems, these radio digital communication systems comprise a data sending terminal and multiple data receiver, data sending terminal sends data to each receiving terminal, and the data of data receiver receiving end/sending end are also returned to response packet.
In wireless digital earphone system, transmitting terminal is by the voice data of acquisition with the form packing of radio frequency bag and send in the middle of channel by radio-frequency module, and earphone end is by radio-frequency module received RF bag be reduced into voice data in the middle of channel.
In various embodiments of the present invention, related frame structure refers to the institutional framework of the periodic radio frequency bag using in radio digital communication system, and frame structure is needed the radio frequency bag number of actual transmissions by this frame, needs the decisions such as the response packet number of sending/receiving.In this programme, the above-mentioned radio frequency bag that need to transmit can comprise one or more in packet, gravity treatment bag, response packet and control bag etc. as required.
Above-mentioned data packet transmission needs the voice data of transmission in the frame period, the size of packet determines by system radio-frequency module, and the quantity of packet is determined by frame period and audio data samples rate.
The descriptor of above-mentioned response packet transmission earphone end to all radio frequency bag reception conditions in the frame period.
Required control information in above-mentioned control bag transport communication, in this programme, can utilize and control the frame structure adjustment information that bag transmission generates.
Consider the existence of channel disturbance, in the ordinary course of things, the form that this programme utilizes packet to add retransmission packet is organized the frame structure of radio frequency transmission, by adopting retransmission packet to ensure the transmitting of voice data.The number of retransmission packet can be determined by radio frequency bandwidth, can ensure with more retransmission packet the transmitting of voice data in high bandwidth system communication.
Loss in time range before above-mentioned retransmission packet transmission current frame period packet, concrete, above-mentioned retransmission packet transmits the packet that needs re-transmission in this retransmission packet sphere of action, for a certain retransmission packet, above-mentioned retransmission packet sphere of action refers to the scope of the packet before current frame period that this retransmission packet can retransmit.For example, the sphere of action of the retransmission packet that wireless digital earphone system uses is 8 frame periods, so under current frame period N retransmission packet A, the packet that can retransmit is the packet that (N-8) frame period, arbitrary in the frame period lost to (N-1).(N-8) frame period herein to (N-1) frame period is called the sphere of action of N frame retransmission packet.
Referring to Fig. 4, show the scene to a transmitting terminal and an earphone end, the example of a kind of frame structure that the embodiment of the present invention provides, the transmission bandwidth of radio frequency is maximum in this example supports 1 of use to control bag, 6 packets, 9 retransmission packets and 1 response packet.
Based on the basic framework shown in Fig. 2, referring to Fig. 3, the communication means of the wireless digital earphone of the embodiment of the present invention specifically comprises following processing:
31: transmitting terminal obtaining communication status indication information.
Above-mentioned communications status indication information instruction earphone end state and channel status, according to the difference of communications status indicating information contents, the concrete mode of obtaining this information is also different, for example,
When earphone end state is indicated the earphone end having connected, this earphone end and transmitting terminal connect, transmitting terminal is by the connection status of earphone end is detected, and obtaining communication status indication information record obtain earphone end state the record of the earphone end having connected;
When whether earphone end state instruction earphone end successfully receives corresponding data bag, transmitting terminal, according to the response packet from earphone end receiving, obtains described communications status indication information, obtains earphone end and whether successfully receive the earphone end state of corresponding data bag;
In the time of the current channel quality of channel status instruction communication system, transmitting terminal is by channel status is detected, obtaining communication status indication information, the i.e. channel status of the current channel quality of obtaining communication system;
32: judge whether communications status changes, and if so, performs step 33, if not, still utilize current frame structure to carry out transfer of data.
Know that according to communications status indication information communications status changes, for example:
When a upper communications status indication information (as t-1 communications status indication information) instruction the first earphone end and the transmitting terminal that get have connected, and current communications status indication information (as t communications status indication information) instruction the first earphone end and transmitting terminal disconnect, determine that communications status changes, there is earphone end to connect and lose, from wireless communication system, depart from.
When a upper communications status indication information (as t-1 communications status indication information) instruction the second earphone end and the transmitting terminal that get do not connect, and current communications status indication information (as t communications status indication information) instruction the second earphone end and transmitting terminal successfully connect, determine that communications status changes, and has new earphone end to join in wireless communication system.
When the channel quality of the first communications status indication information (as t the communications status indication information) instruction getting is during higher than the indicated channel quality of second communication status indication information (as t-3 communications status indication information), determine that communications status changes, be that improvement has occurred channel conditions, channel quality has improved.
33: delta frame structural adjustment information.
Transmitting terminal has learnt by above-mentioned communications status indication information the practical communication state that system is current, make corresponding adjustment strategy, and pass through generated frame structure adjustment information make earphone end and transmitting terminal know adjust strategy, the changing content difference of communications status indication information instruction, the particular content of the frame structure adjustment information generating is also different, at least comprises following four kinds of situations:
The first situation
In this case, the earphone end that earphone end state instruction in communications status indication information and transmitting terminal connect, know and have at least one second earphone end according to communications status indication information, the satisfied condition of this second earphone end is: a upper communications status indication information indicates described the second earphone end and transmitting terminal not to connect, and current communications status indication information indicates described the second earphone end and transmitting terminal successfully to connect, there is new earphone end to join in wireless communication system.
Above-mentioned frame structure adjustment information comprises radio frequency bag adjustment information, and at this moment, the response packet corresponding to the second earphone end is added in the radio frequency bag adjustment information instruction generating in frame structure.At this, illustrate in conjunction with the scene shown in Fig. 4, if Fig. 4 show be exemplified as communications status change before frame structure time, referring to Fig. 5, shown in system, to connect after a new earphone end and adjusted the frame structure example obtaining, Fig. 5 has shown the frame structure example after communications status changes.
Frame structure in Fig. 5 is than the frame structure in Fig. 4, the main distinction is to have reduced in the frame structure of transmitting terminal the number of retransmission packet, reducing retransmission packet is in order to discharge the shared bandwidth resources of this retransmission packet, to give i.e. the second earphone end of newly-increased earphone end 2() response packet (response packet 2 shown in Fig. 4) distribute bandwidth, thereby complete the transmission of the response packet of earphone end 2.
Because the frame structure shown in Fig. 4 has reached the maximum tenability of transmission bandwidth of radio frequency, so at this, when there being new earphone end to add fashionable, must reduce retransmission packet, and, here 1 retransmission packet reducing is example explanation, also can reduce multiple retransmission packets, as long as ensure to delete the retransmission packet that required radio frequency bandwidth is not less than the shared radio frequency bandwidth of response packet of interpolation in frame structure.In the time that the shared radio frequency bandwidth of retransmission packet is identical with the shared radio frequency bandwidth of response packet, the quantity of the retransmission packet reducing is greater than the quantity that equals required newly-increased response packet.If be appreciated that, in system, bandwidth resources are more sufficient, also can be without reducing retransmission packet.
From the above mentioned, in the time that the response packet corresponding to the second earphone end is added in the instruction of generated radio frequency bag adjustment information in frame structure, above-mentioned radio frequency bag adjustment information can also be indicated: the retransmission packet of deleting the shared radio frequency bandwidth of response packet that is not less than interpolation in transmitting terminal frame structure, the required radio frequency bandwidth of retransmission packet deleted is not less than the shared radio frequency bandwidth of response packet of interpolation, or, in deleting the retransmission packet of the shared radio frequency bandwidth of response packet that is not less than interpolation and adjust frame structure in transmitting terminal frame structure, receive the sequential position of earphone end response packet, or, only adjust the sequential position that receives earphone end response packet in frame structure.
At earphone end, accordingly, utilize the radio frequency bag adjustment information receiving in frame structure, to delete the retransmission packet that is not less than the shared radio frequency bandwidth of all the second earphone end response packets, the required radio frequency bandwidth of the retransmission packet of deleting be not less than the shared radio frequency bandwidth of all the second earphone end response packets, or, deletion is not less than the retransmission packet of the shared radio frequency bandwidth of all the second earphone end response packets and adjusts the sequential position that sends response packet in frame structure, or, only adjust the sequential position that sends response packet in frame structure.
The second situation
In this case, the earphone end that earphone end state instruction in communications status indication information and transmitting terminal connect, know and have at least one first earphone end according to communications status indication information, the satisfied condition of this first earphone end is: a upper communications status indication information indicates the first earphone end and transmitting terminal successfully to connect, and current communications status indication information indicates the first earphone end and transmitting terminal to disconnect, there is earphone end to connect and lose, from wireless communication system, depart from.
Above-mentioned frame structure adjustment information comprises radio frequency bag adjustment information, at this moment, in the radio frequency bag adjustment information instruction delete frame structure generating, corresponding to the response packet of the first earphone end, in the frame structure of transmitting terminal, no longer comprises the response packet corresponding to the first earphone end.At this, illustrate in conjunction with the scene shown in Fig. 5, if Fig. 5 show be exemplified as communications status change before frame structure example time, referring to Fig. 6, show that in system, an earphone end is adjusted the frame structure example obtaining after connecting loss, i.e. frame structure example after communications status variation.
Fig. 6 connects upper 2 earphone ends for transmitting terminal to change and be illustrated to the frame structure of losing an earphone end.In the time that connecting upper two earphone ends, transmitting terminal uses frame structure as shown in Figure 5, the transmitting terminal frame structure that in this structure, transmitting terminal uses can be referred to as transmitting terminal frame structure 2, earphone end 1 uses earphone end frame structure can be referred to as earphone end frame structure 1, and earphone end 2 uses earphone end frame structure can be referred to as earphone end frame structure 2; When earphone end 1 disconnected after (or connecting loss), need so to use frame structure shown in Fig. 6, in this structure, transmitting terminal uses transmitting terminal frame structure can be referred to as transmitting terminal frame structure 1, and earphone end 2 uses earphone end frame structure can be referred to as earphone end frame structure 3.
By relatively can finding out of Fig. 5 and Fig. 6, after earphone end 1 is lost, in the frame structure (transmitting terminal frame structure 1) of transmitting terminal, increase the number of retransmission packet, and no longer retained the response packet (response packet 1 shown in Fig. 5) of the earphone end 1 of losing, correspondingly, in the frame structure (earphone end frame structure 1) of earphone end 2, increase retransmission packet, because the deletion of response packet 1 can not impact the sequential position of response packet 2, mainly consider at this whether the retransmission packet 9 increasing impacts the response packet 2 in earphone end 2, if not, without the sequential position of adjusting response packet 2 in earphone end frame structure 2, if, need to adjust the sequential position of response packet 2 in earphone end frame structure 2, in the scene of Fig. 6, the sequential position of response packet 2 is adjusted to the position of response packet 1 in earphone end frame structure 1, obtain earphone end frame structure 3.
At this, the operation that has increased retransmission packet number is not necessary, can keep original retransmission packet quantity constant, or, in the time detecting that current channel quality is better, can also reduce the number of retransmission packet, to save system bandwidth.As long as ensure that the required radio frequency bandwidth of retransmission packet set up is not more than the shared radio frequency bandwidth of response packet of deletion, above-mentioned scene when mainly identical with the shared radio frequency bandwidth of response packet taking the shared radio frequency bandwidth of retransmission packet to the description of Fig. 5 and Fig. 6 is as example explanation.
From the above mentioned, when in generated radio frequency bag adjustment information instruction delete frame structure during corresponding to the response packet of the first earphone end, above-mentioned radio frequency bag adjustment information can also be indicated: transmitting terminal is set up the retransmission packet of the shared radio frequency bandwidth of response packet that is not more than deletion in frame structure, the required radio frequency bandwidth of retransmission packet set up is not more than the shared radio frequency bandwidth of response packet of deletion, or, in frame structure, set up the retransmission packet of the shared radio frequency bandwidth of response packet that is not more than deletion and adjust the sequential position that receives earphone end response packet in frame structure; Or, only adjust the sequential position that receives earphone end response packet in frame structure.
At earphone end, accordingly, utilize the radio frequency bag adjustment information receiving in frame structure, to set up the retransmission packet that is not more than the shared radio frequency bandwidth of all the first earphone end response packets, or, in frame structure, set up and be not more than the retransmission packet of the shared radio frequency bandwidth of all the first earphone end response packets and adjust the sequential position that sends response packet in frame structure, or, only adjust the sequential position that sends response packet in frame structure.
Because available technology adopting is the mode of earphone end reserved bandwidth resource in advance, even if earphone end, in not-connected status, cannot carry out the transmission of data, system is still that this earphone end retains respective bandwidth, cause the waste of bandwidth resources, caused bandwidth availability ratio lower.In order to address this problem, further, transmitting terminal is after earphone end 1 is lost, and discharging be the bandwidth resources of this earphone end reservation in advance, discharged bandwidth resources is redistributed, thereby further improved the utilance of system resource.
The third situation
In this case, whether the instruction of the earphone end state in communications status indication information earphone end successfully receives corresponding data bag.Transmitting terminal, according to the response packet from earphone end receiving, obtains described communications status indication information.Because response packet has been described the reception condition of radio frequency bag in each frame period, so transmitting terminal can learn according to response packet whether earphone end successfully receives corresponding data bag.
In the third situation, under each frame period, in frame structure, do not comprised retransmission packet according to re-transmission policy decision-making by transmitting terminal, do not send retransmission packet to earphone end.Re-transmission policy refers at transmitting terminal and determines according to the response packet of multiple earphone ends the determining method that this frame uses need to send the retransmission packet sequence of retransmission packet and quantity time.
For example, transmitting terminal, in the time that all packets all successfully receive in the retransmission packet sphere of action of knowing respective frame according to communications status indication information, does not comprise retransmission packet in the frame structure of the radio frequency bag adjustment information instruction generating.Above-mentioned respective frame is the reference frame that foundation is adjusted in selected conduct in adjustment frame structure, in the time that in the retransmission packet sphere of action of respective frame, all packets successfully receive, the retransmission packet of deleting this respective frame can not affect the reception of data, think adjust after frame structure in do not comprise that retransmission packet also can ensure the normal reception of data.
At this moment, corresponding, in the frame structure after the radio frequency bag adjustment information adjustment that the utilization of earphone end receives, do not comprise retransmission packet.
Further, the scheme that this programme also provides a kind of frame structure to adjust, adjusted retransmission packet (as retransmission packet sequence) according to the reception condition of retransmission packet in each frame period, specific as follows:
In each frame period, there is data-bag lost situation in transmitting terminal is known the retransmission packet sphere of action of respective frame time, determine the retransmission packet sequence adopting according to re-transmission policy, adjust the position of retransmission packet in frame structure according to this retransmission packet sequence, and this retransmission packet sequence is informed to corresponding earphone end, for example, this retransmission packet sequence is carried in control bag and is issued to earphone end, to carry out data communication according to frame structure and described earphone end after adjusting.
This mode is pre-determined retransmission packet sequence in frame structure by transmitting terminal, retransmission packet sequence is indicated the position of the corresponding packet of different retransmission packets.
Accordingly, at earphone end, the packet that utilizes the radio frequency bag adjustment information receiving to retransmit according to the retransmission packet sequential reception of knowing from transmitting terminal.
Under this processing mode, transmitting terminal can wrap by control (or packet) after determining the retransmission packet sequence that needs to retransmit, to earphone end broadcast retransmission packet sequence informations all in system, earphone end is received and is controlled while finding that the retransmission packet sequence of current received frame does not comprise the retransmission packet of self needs after bag, earphone end is by finishing in advance the reception of retransmission packet, to save system power dissipation.
From the above mentioned, in the third situation, do not send retransmission packet and determine in advance two kinds of scenes of the retransmission packet sequence adopting according to re-transmission policy to earphone end, can under each frame period, carry out, in each frame period, the frame structure that transmitting terminal uses according to the adjustment of frame structure adjustment information, and according to the frame structure after adjusting, send radio frequency bag to earphone end, and reception is from the response packet of earphone end, accordingly, the frame structure that earphone end uses according to the frame structure adjustment information adjustment consistent with transmitting terminal, and according to the frame structure after adjusting, receive the radio frequency bag from transmitting terminal, and send response packet to transmitting terminal.
In this case, after delta frame structural adjustment information, can utilize this frame structure adjustment information to adjust frame structure, without the arrival of waiting for frame structure trip point, reach the effect of real-time adjustment frame structure.
Be appreciated that this programme also and after being not precluded within the arrival of frame structure trip point carries out the mode that frame structure is adjusted in the third situation again.
The 4th kind of situation
In this case, know that according to communications status indication information current channel quality compares former channel quality and improved or reduced.Transmitting terminal can be by channel status is detected, obtaining communication status indication information.
At this, current channel quality, former channel quality are all the measurement statisticses to some frame period channel qualities in certain limit.
" current " refers to carry out Channel Detection and generates this for adjusting the frame period scope of communications status indication information of frame structure, this frame period scope is generally multiple frame periods, and current channel quality is that channel quality within the scope of current frame period is added up to the result obtaining.
In this programme, be provided with frame structure trip point or frame structure hop period, delta frame structural adjustment information before this frame structure hop period, in the time that frame structure hop period arrives, transmitting terminal and earphone end adopt new frame structure to communicate simultaneously.All frame periods before transmitting terminal can utilize after frame structure adjustment information generates, frame structure hop period arrives, to the earphone end broadcast frame structural adjustment information existing in system.By the setting of frame structure hop period, ensure that transmitting terminal and earphone end can both be known frame structure adjustment information before frame structure is adjusted, thereby ensured to adjust the successful realization of operation.
Above-mentioned frame structure adjustment information comprises relative position adjustment information, and the instruction of this relative position adjustment information is for cycle of carrying out frame structure saltus step sequential position with respect to the cycle for sending respective frame structural adjustment information; When the indicated channel quality of the first communications status indication information is during higher than the indicated channel quality of second communication status indication information, the numerical value of the indicated sequential position of the relative position adjustment information that generates according to the first communications status indication information is less than the numerical value of the indicated sequential position of the relative position adjustment information that generates according to second communication status indication information.
34: frame structure adjustment information is sent to corresponding earphone end.
Transmitting terminal can be carried at frame structure adjustment information and in packet, be sent to earphone end, or, generate and control bag by frame structure adjustment information, control bag as frame structure adjustment information being packaged into separately to one, controls is wrapped and is sent to earphone end.
Accordingly, the frame structure adjustment information that earphone end receiving end/sending end issues by packet, this frame structure adjustment information is carried in packet; Or earphone end receiving end/sending end wraps the frame structure adjustment information issuing by control, this control bag generates according to frame structure adjustment information.
35: adjust the frame structure using, and carry out data communication according to the frame structure after adjusting.
After frame structure hop period arrives, the frame structure that transmitting terminal and earphone end all use according to known frame structure adjustment information adjustment, and in the time that the cycle of carrying out frame structure saltus step arrives, according to the frame structure after adjusting, transmitting terminal sends radio frequency bag to earphone end, and receives the response packet from earphone end.
Further, before the frame structure that utilizes the adjustment of described frame structure adjustment information to use,, in the transition stage of waiting for that frame structure hop period arrives, this method also comprises:
In the response packet of current used frame structure, response packet is forbidden receiving in the position of corresponding the first earphone end.Because transmitting terminal starts radio frequency bag receiving function and also needs certain power consumption in accepting state, by forbidding receiving function, further reduce power consumption.
Referring to Fig. 7, show the schematic diagram of the frame structure that a kind of transition stage adopts, transmitting terminal thinks that earphone end 1 loses, the frame structure that the framing control transition stage of going on the air is used, in this frame structure, transmitting terminal forbids receiving response packet to reduce power consumption in the position of the response packet (response packet 1) of earphone end 1.
In foregoing description, only with a transmitting terminal and an earphone end, or a transmitting terminal and two earphone ends are that example is illustrated.But this programme is not limited to this, this programme can be suitable for the scene that comprises multiple earphone ends flexibly, referring to Fig. 8, has shown frame structure schematic diagram when transmitting terminal connects multiple earphone end.In the time that transmitting terminal connects upper x earphone end, the frame structure of system is made up of 1 control bag, 6 packets, a n retransmission packet and x response packets, wherein, x response packet is corresponding to x earphone end, for example, response packet 1 is corresponding to earphone end 1, and response packet 2 is corresponding to earphone end 2, and response packet x is corresponding to earphone end x.The maximum of the x maximum number of earphone end that namely system is supported herein, x is determined jointly by factors such as the sizes of radio frequency bandwidth, frame period length and radio frequency bag.
Further, this programme is also provided with a kind of mechanism that retransmission packet receives that initiatively finishes for earphone end, comprises following processing:
In the time comprising retransmission packet from the present frame of transmitting terminal, if according to the statistics of the radio frequency bag to having received, confirm does not have data-bag lost in present frame retransmission range, reject the retransmission packet from transmitting terminal, all packets all successfully receive, do not need to carry out again the reception of retransmission packet, to save power consumption; Or,
When receiving after at least one retransmission packet of present frame, while confirming there is no data-bag lost in present frame retransmission range, refusal continues to receive the retransmission packet from transmitting terminal, by current with the retransmission packet receiving successfully received current frame period retransmission packet all packets in energy sphere of action, finish in advance the reception operation of retransmission packet, to save power consumption.
Because the re-transmission policy that this programme adopts is to be based upon response packet to return to transmitting terminal, described by response packet on the basis of radio frequency bag reception condition, so for the optimum that ensures re-transmission policy uses, need to ensure the correct transmission of response packet as far as possible.
For reaching this effect, this programme also provides the frame structure of another kind of form, referring to Fig. 9 and 10, adopt the frame structure that repeatedly retransmits response packet, under this frame structure, earphone end, to the every frame radio frequency bag from transmitting terminal receiving, returns at least two response packets to transmitting terminal.The concrete number of times adopting or the number of response packet are determined according to the system factor such as radio frequency bandwidth, system power dissipation.Clear in order to narrate, Fig. 9 has provided system and has been connected the frame structure that later 2 response packets that use of multiple earphone ends retransmit with Figure 10.Frame structure in Fig. 9 relatively, temporal dislocation has been carried out in the re-transmission of response packet by Figure 10, adjusted the sequential position of response packet, to avoid the bursty interference of short time to cause whole loss of same earphone end response packet, ensured that response packet can successfully transfer to transmitting terminal.
From above-mentioned, the technical scheme of the embodiment of the present invention provides a kind of novel wireless digital voice communication scheme, this scheme is according to the practical communication state of the system getting, make corresponding adjustment strategy, and pass through generated frame structure adjustment information make earphone end and transmitting terminal know adjust strategy, thereby realize a kind of communication that dynamically changes the frame structure using according to communications status, significantly improve the flexibility of wireless audio transmission system, ensure the successful realization of multiple communication scenes subaudio frequency communication, improved user's experience.
Further, this programme is by the dynamic adjustment to frame structure, the particular content of the radio frequency bag of required transmission can be set flexibly, thereby control the required system resource taking, can meet under the requirement of high reliability, low delay and low radiation, reduce to greatest extent system power dissipation, improve the utilance of system resource, there is stronger feasibility and wider application prospect.
The embodiment of the present invention four also provides the receiving device in a kind of radio digital communication, and referring to Figure 11, this receiving device 110 comprises as lower unit:
Adjustment information receiving element 111, for receiving the frame structure adjustment information from transmitting terminal, described frame structure adjustment information comprises radio frequency bag adjustment information, described frame structure adjustment information is that transmitting terminal generates according to communications status indication information in the time knowing that communications status changes, described communications status indication information instruction receiving-end state and/or channel status;
Frame structure adjustment unit 112, for the frame structure that utilizes the adjustment of described frame structure adjustment information to use, and carries out data communication according to frame structure and described sending ending equipment after adjusting.
According to the difference of real network structure, above-mentioned receiving device 110 can be realized by different devices, and in radio communication earphone system, above-mentioned receiving device can be earphone end.Above-mentioned receiving-end state can be indicated the receiving terminal connecting with transmitting terminal, under the scene in the communication of wireless digital earphone, above-mentioned receiving-end state is earphone end state, the earphone end that this earphone end state instruction and transmitting terminal connect, or above-mentioned receiving-end state also can indicate receiving terminal whether successfully to receive corresponding data bag.The current channel quality of above-mentioned channel status instruction communication system.
In the time that the response packet corresponding to the first earphone end is deleted in the instruction of generated radio frequency bag adjustment information in frame structure, the radio frequency bag adjustment information generating is also indicated the retransmission packet of setting up the shared radio frequency bandwidth of response packet that is not more than deletion in frame structure, and/or, adjust the sequential position that receives multiple response packets in frame structure, above-mentioned frame structure adjustment unit 112, in frame structure, set up specifically for utilizing the radio frequency bag adjustment information receiving the retransmission packet that is not more than the shared radio frequency bandwidth of all the first earphone end response packets, and/or, in structure, adjust the sequential position that frame sends response packet,
In the time that the response packet corresponding to the second earphone end is added in the instruction of generated radio frequency bag adjustment information in frame structure, the radio frequency bag adjustment information generating is also indicated the retransmission packet of deleting the shared radio frequency bandwidth of response packet that is not less than interpolation in frame structure, and/or, in frame structure, adjust the sequential position of the response packet of required reception, frame structure adjustment unit 112, in frame structure, delete specifically for utilizing the radio frequency bag adjustment information receiving the retransmission packet that is not less than the shared radio frequency bandwidth of all the second earphone end response packets, and/or, in frame structure, adjust the sequential position that sends response packet.
If when whether above-mentioned earphone end state instruction earphone end successfully receives corresponding data bag, in each frame period, in the time that all packets all successfully receive in the retransmission packet sphere of action of knowing respective frame according to communications status indication information, in the frame structure of the radio frequency bag adjustment information instruction generating, do not comprise retransmission packet; Or, in each frame period, in the time there is data-bag lost situation in the retransmission packet sphere of action of knowing respective frame according to communications status indication information, determine the retransmission packet sequence adopting according to re-transmission policy, the position of the radio frequency bag adjustment information generating instruction corresponding packet of retransmission packet in frame structure.At this moment, frame structure adjustment unit 112, specifically in each frame period, the frame structure using according to the frame structure adjustment information adjustment consistent with transmitting terminal, and according to the frame structure after adjusting, receive the radio frequency bag from transmitting terminal, and send response packet to transmitting terminal.At this moment, receiving device 110 can also utilize the 3rd reception control unit to finish in advance retransmission packet and receives or do not need to receive retransmission packet, to save power consumption.
If the current channel quality of above-mentioned channel status instruction communication system, above-mentioned frame structure adjustment information also comprises relative position adjustment information, and the cycle that this relative position adjustment information instruction is used for carrying out frame structure saltus step is with respect to the sequential position sending for the cycle of respective frame structural adjustment information.
In this programme, be provided with frame structure trip point or frame structure hop period, delta frame structural adjustment information before this frame structure hop period, in the time that frame structure hop period arrives, transmitting terminal and earphone end adopt new frame structure to communicate simultaneously.All frame periods before transmitting terminal can utilize after frame structure adjustment information generates, frame structure hop period arrives, to the earphone end broadcast frame structural adjustment information existing in system.By the setting of frame structure hop period, ensure that transmitting terminal and earphone end can both be known frame structure adjustment information before frame structure is adjusted, thereby ensured to adjust the successful realization of operation.
Above-mentioned frame structure adjustment unit 112, the frame structure using specifically for the frame structure adjustment information adjustment according to consistent with transmitting terminal, and in the time that the cycle of the execution frame structure saltus step consistent with transmitting terminal arrives, according to the frame structure after adjusting, receive the radio frequency bag from transmitting terminal, and send response packet to transmitting terminal.
Further, when transmitting terminal is carried at frame structure adjustment information to be sent to earphone end equipment in packet, or, generate and control bag according to frame structure adjustment information, controls is wrapped and is sent to receiving device;
At this moment, corresponding, above-mentioned adjustment information receiving element 111, the frame structure adjustment information issuing by packet or control bag specifically for receiving end/sending end.
Further, receiving terminal can initiatively or finish in advance retransmission packet according to the information from transmitting terminal and receives or do not need to receive retransmission packet, and to save power consumption, at this moment, above-mentioned receiving device also comprises:
The first reception control unit, in the time comprising retransmission packet from the present frame of transmitting terminal, if according to the statistics of the radio frequency bag to having received, confirm does not have data-bag lost in present frame retransmission range, rejects the retransmission packet from transmitting terminal; And/or,
The second reception control unit, for when receiving after at least one retransmission packet of present frame, while confirming there is no data-bag lost in present frame retransmission range, refuses to continue to receive the retransmission packet from transmitting terminal; And/or,
The 3rd reception control unit, for the retransmission packet sequence when adopting according to known transmitting terminal, while not comprising required retransmission packet in the retransmission packet of confirming not receive in present frame, rejection is from the retransmission packet of transmitting terminal.Here, the retransmission packet not receiving has two kinds of situations, and a kind of situation is that the retransmission packet no one from transmitting terminal is received; Another kind of situation is to the retransmission packet from transmitting terminal, has received a part, also has the remaining retransmission packet that there is no reception.
Further, this programme also provides the frame structure of another kind of form, referring to Figure 10 and 11, adopt the frame structure that repeatedly retransmits response packet, under this frame structure, receiving terminal, to the every frame radio frequency bag from transmitting terminal receiving, returns at least two identical response packets to transmitting terminal.And, in the time there is multiple receiving terminal, repeatedly retransmit the response packet of each receiving terminal to transmitting terminal according to set sequential position, wherein, two response packets adjacent in set sequential position belong to different earphone ends, between the response packet of different receiving terminals, are alternative arrangements.At this moment, above-mentioned frame structure adjustment unit 112, also, specifically for to the every frame radio frequency bag from transmitting terminal receiving, returns at least two response packets to transmitting terminal.
In present device embodiment, the specific works mode of each equipment and unit is referring to embodiment of the method for the present invention.
From above-mentioned, the technical scheme of the embodiment of the present invention provides a kind of novel wireless digital voice communication scheme, this scheme is according to the practical communication state of the system getting, make corresponding adjustment strategy, and pass through generated frame structure adjustment information make earphone end and transmitting terminal know adjust strategy, thereby realize a kind of communication that dynamically changes the frame structure using according to communications status, significantly improve the flexibility of wireless audio transmission system, ensure the successful realization of multiple communication scenes subaudio frequency communication, improved user's experience.
Further, this programme is by the dynamic adjustment to frame structure, the particular content of the radio frequency bag of required transmission can be set flexibly, thereby control the required system resource taking, can meet under the requirement of high reliability, low delay and low radiation, reduce to greatest extent system power dissipation, improve the utilance of system resource, there is stronger feasibility and wider application prospect.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (7)
1. a Wireless digital communication method, is characterized in that, described method comprises:
Receive the frame structure adjustment information from transmitting terminal, described frame structure adjustment information comprises radio frequency bag adjustment information, described frame structure adjustment information is that transmitting terminal generates according to communications status indication information in the time knowing that communications status changes, described communications status indication information instruction receiving-end state;
The frame structure that utilizes the adjustment of described frame structure adjustment information to use, and carry out data communication according to frame structure and described transmitting terminal after adjusting;
Wherein, in the time that transmitting terminal generates described frame structure adjustment information according to the receiving-end state of the receiving terminal having connected, indicating at least one first receiving terminal when a upper communications status indication information connects, and current communications status indication information indicates described the first receiving terminal to disconnect, when the radio frequency bag adjustment information instruction generating is deleted corresponding to the response packet of described the first receiving terminal in frame structure
The described frame structure that utilizes the adjustment of described frame structure adjustment information to use specifically comprises:
Utilize the radio frequency bag adjustment information receiving in frame structure, to set up the retransmission packet that is not more than the shared radio frequency bandwidth of all the first receiving terminal response packets, and/or, the sequential position that sends response packet in frame structure, adjusted;
Wherein, in the time that transmitting terminal generates described frame structure adjustment information according to the receiving-end state of the receiving terminal having connected, indicating at least one second receiving terminal when a upper communications status indication information does not connect, and current communications status indication information indicates described the second receiving terminal successfully to connect, when the radio frequency bag adjustment information instruction generating is added corresponding to the response packet of described the second receiving terminal in frame structure
The described frame structure that utilizes the adjustment of described frame structure adjustment information to use specifically comprises:
Utilize the radio frequency bag adjustment information receiving in frame structure, to delete the retransmission packet that is not less than the shared radio frequency bandwidth of all the second receiving terminal response packets, and/or, the sequential position that sends response packet in frame structure adjusted;
Wherein, when the receiving-end state that whether successfully receives corresponding data bag according to receiving terminal at transmitting terminal generates described frame structure adjustment information, the described frame structure that utilizes the adjustment of described frame structure adjustment information to use specifically comprises:
In the retransmission packet sphere of action of described communications status indication information instruction respective frame, all packets all successfully receive, and in each frame period, utilize in the frame structure after the radio frequency bag adjustment information adjustment receiving and do not comprise retransmission packet; Or,
In the retransmission packet sphere of action of described communications status indication information instruction respective frame, there is data-bag lost situation, in each frame period, utilize the radio frequency bag adjustment information receiving to know adopted retransmission packet sequence, and in frame structure, adjust the position of the corresponding packet of retransmission packet according to this retransmission packet sequence.
2. method according to claim 1, is characterized in that, also indicating channel state of described communications status indication information; In the time that transmitting terminal generates described frame structure adjustment information according to the channel status of the current channel quality of the communication system getting,
Described frame structure adjustment information also comprises relative position adjustment information, and the instruction of described relative position adjustment information is for cycle of carrying out frame structure saltus step sequential position with respect to the cycle for sending respective frame structural adjustment information;
The described frame structure that utilizes the adjustment of described frame structure adjustment information to use, and carry out data communication and specifically comprise according to frame structure and described transmitting terminal after adjusting:
The frame structure using according to the frame structure adjustment information adjustment consistent with transmitting terminal, and in the time that the cycle of the execution frame structure saltus step consistent with transmitting terminal arrives, according to the frame structure after adjusting, receive the radio frequency bag from transmitting terminal, send response packet to transmitting terminal.
3. method according to claim 1, it is characterized in that, when the receiving-end state that whether successfully receives corresponding data bag according to receiving terminal at transmitting terminal generates described frame structure adjustment information, describedly carry out data communication according to the frame structure after adjusting and described transmitting terminal and specifically comprise:
In each frame period, the frame structure using according to the frame structure adjustment information adjustment consistent with transmitting terminal, and according to the frame structure after adjusting, receive the radio frequency bag from transmitting terminal, send response packet to transmitting terminal.
4. according to the method described in claims 1 to 3 any one, it is characterized in that, described method also comprises:
In the time comprising retransmission packet from the present frame of transmitting terminal, if according to the statistics of the radio frequency bag to having received, confirm does not have data-bag lost in present frame retransmission range, rejects the retransmission packet from transmitting terminal; Or,
When receiving after at least one retransmission packet of present frame, while confirming there is no data-bag lost in present frame retransmission range, refusal continues to receive the retransmission packet from transmitting terminal; Or,
When the retransmission packet sequence adopting according to known transmitting terminal, while not comprising required retransmission packet in the retransmission packet of confirming not receive in present frame, rejection is from the retransmission packet of transmitting terminal.
5. according to the method described in claims 1 to 3 any one, it is characterized in that, the described frame structure that utilizes the adjustment of described frame structure adjustment information to use, and carry out data communication according to frame structure and described transmitting terminal after adjusting, specifically comprise:
To the every frame radio frequency bag from transmitting terminal receiving, repeatedly retransmit response packet to transmitting terminal; Wherein, in the time there is multiple receiving terminal, repeatedly retransmit the response packet of each receiving terminal according to set sequential position to transmitting terminal, two response packets adjacent in set sequential position belong to different receiving terminals.
6. method according to claim 4, is characterized in that, described reception specifically comprises from the frame structure adjustment information of transmitting terminal:
The frame structure adjustment information that receiving end/sending end issues by packet, described frame structure adjustment information is carried in described packet; Or receiving end/sending end wraps the frame structure adjustment information issuing by control, described control bag generates according to frame structure adjustment information.
7. method according to claim 5, is characterized in that, described reception specifically comprises from the frame structure adjustment information of transmitting terminal:
The frame structure adjustment information that receiving end/sending end issues by packet, described frame structure adjustment information is carried in described packet; Or receiving end/sending end wraps the frame structure adjustment information issuing by control, described control bag generates according to frame structure adjustment information.
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| CN201110295132.8A CN102340389B (en) | 2011-09-30 | 2011-09-30 | Wireless digital communication method |
| JP2013558300A JP5503817B2 (en) | 2011-09-30 | 2012-09-28 | Wireless digital communication method and system |
| KR1020137016016A KR101346984B1 (en) | 2011-09-30 | 2012-09-28 | Wireless digital communication method and system |
| DK12835705.0T DK2642681T3 (en) | 2011-09-30 | 2012-09-28 | Wireless digital communication method and system |
| US13/988,369 US9392544B2 (en) | 2011-09-30 | 2012-09-28 | Wireless digital communication method and system |
| EP12835705.0A EP2642681B1 (en) | 2011-09-30 | 2012-09-28 | Wireless digital communication method and system |
| PCT/CN2012/082328 WO2013044851A1 (en) | 2011-09-30 | 2012-09-28 | Wireless digital communication method and system |
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| CN201110295132.8A CN102340389B (en) | 2011-09-30 | 2011-09-30 | Wireless digital communication method |
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| EP3554014B1 (en) * | 2016-12-07 | 2021-11-03 | Fuji Corporation | Communication control device |
| CN109194998B (en) * | 2018-08-14 | 2021-05-11 | Oppo广东移动通信有限公司 | Data transmission method and device, electronic equipment and computer readable medium |
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| CN101394196A (en) * | 2007-09-20 | 2009-03-25 | 北京信威通信技术股份有限公司 | Dynamically regulating method and device for frame structure in channel estimation |
| CN101753274A (en) * | 2008-12-19 | 2010-06-23 | 中国移动通信集团设计院有限公司 | Resource scheduling method, system and equipment in time division duplex high speed downlink packet access (TDD HSDPA) system |
| CN202617135U (en) * | 2011-09-30 | 2012-12-19 | 歌尔声学股份有限公司 | wireless digital communication system |
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| CN101394196A (en) * | 2007-09-20 | 2009-03-25 | 北京信威通信技术股份有限公司 | Dynamically regulating method and device for frame structure in channel estimation |
| CN101753274A (en) * | 2008-12-19 | 2010-06-23 | 中国移动通信集团设计院有限公司 | Resource scheduling method, system and equipment in time division duplex high speed downlink packet access (TDD HSDPA) system |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |