CN109861797A - A kind of data transmission method and system - Google Patents
A kind of data transmission method and system Download PDFInfo
- Publication number
- CN109861797A CN109861797A CN201711461003.5A CN201711461003A CN109861797A CN 109861797 A CN109861797 A CN 109861797A CN 201711461003 A CN201711461003 A CN 201711461003A CN 109861797 A CN109861797 A CN 109861797A
- Authority
- CN
- China
- Prior art keywords
- data
- fragment
- frame
- resource
- transmitting terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The present invention provides a kind of data transmission methods, can carry out fragment processing to data according to available channel resources, comprising: transmitting terminal sends multiple data frames and/or fragment data according to the resource that channel is distributed；According to the confirmation management frame of receiving end feedback to having succeeded received data frame and/or fragment data confirms；The data frame and/or fragment data that are not successfully received are retransmitted；When being retransmitted, fragment processing is carried out again to data frame and/or fragment data according to current available resources.Channel resource can be used to greatest extent, do not influenced by fixed fragment size；A large amount of fragment can be carried out to avoid in the enough situations of resource, the processing time of processor is reduced while reducing the expense of radio resource, reduces overall cost；By confirming immediately, avoid having confirmed that receiving fragment is transmitted several times, while effectively reducing network delay.
Description
Technical field
The invention belongs to wireless communication technology field more particularly to a kind of data transmission method and systems.
Background technique
In network data transmission, fragment is conducive to network packet and passes through maximum transmission unit (MTU, Maximum
Transmission Unit) it is less than the network of long data packet.It is very tight in wireless channel decline, multipath fading, interchannel interference
In the case where weight, using sliced transmission, can lead to retransmit whole frame data to avoid channel error code, improve the transmission of data entirety at
Power.But if fragment is too small, there are expenses such as more packet header and burst informations, the ratio of payload is smaller, meeting
Lead to network resources waste.Currently, network data fragment carries out fragment generally according to fixed size, by adjusting the big of fragment
It is small, to adapt to a variety of different network environments.Sliced fashion generally uses offset location data position, and receiving end receives fragment
After judge whether to receive all fragment datas, then synthesize whole packet.This mode has the disadvantage that:
One, the signaling overheads as caused by fragment is big, and originator instruction fragment number in data transmission procedure, receiving end is to each point
Piece, which is confirmed, all causes biggish signaling overheads.
Two, since fragment size is fixed, and the resource of Radio Link is constantly changing.Therefore biggish fragment door is set
Limit will cause the maximum waste with the comparable radio resource of fragment thresholding, and lesser fragment thresholding will cause bigger signaling and open
Pin.This contradiction is especially prominent in the wireless communication scene of high-speed mobile.Sharply by high-speed mobile bring wireless channel
Variation will cause two demands, on the one hand in low signal-to-noise ratio, narrow bandwidth, low modulation encoding scheme (MCS, Modulation and
Coding Scheme), multi-user scene since channel resource is limited need the design of lesser fragment to improve radio resource
Utilization rate.On the other hand, in high s/n ratio, the demand that height is handled up needs signaling overheads caused by reducing fragment again.
Three, a large amount of fragment can be born to processor and storage tape, improve the cost of equipment.
Four, since sender does not know recipient's fragment reception condition.It retransmits every time and needs to retransmit all fragments, waste
Network bandwidth.
Five, fragment is once lose, and sender's confirmation needs the case where retransmitting, and time delay is larger.
In order to solve problem above, signaling overheads caused by fragment is reduced while improving the utilization rate of radio resource, this
Text proposes a kind of fragment data transmission plan confirmed immediately, can utilize Internet resources to greatest extent, and do not need by
All long frame fragments do not need to retransmit all fragments every time at short frame yet, to reach the same of the peak use rate of Internet resources
When reduce fragment caused by signaling overheads.
Summary of the invention
In view of this, technical problem to be solved by the invention is to provide a kind of wireless data transmission method, point
Chip technology scheme carries out fragment based on available wireless network data resource size, effectively to subtract using fragment length is not fixed
Few fragment quantity simultaneously uses Internet resources to greatest extent.
A kind of data transmission method provided by the invention can carry out fragment processing, packet to data according to available channel resources
It includes:
Transmitting terminal sends multiple data frames and/or fragment data according to the resource that channel is distributed；
According to the confirmation management frame of receiving end feedback to having succeeded received data frame and/or fragment data confirms；
The data frame and/or fragment data that are not successfully received are retransmitted；
When being retransmitted, fragment processing is carried out again to data frame and/or fragment data according to current available resources.
The resource that transmitting terminal is distributed according to channel sends multiple data frames and/or fragment data specifically includes:
Transmitting terminal successively takes out whether data decision radio resource sends the data packet enough from data to be sent, if
Resource is enough, sends the remaining total data of the data packet；If insufficient, according to current remaining radio resource quantity to the number
Fragment is carried out according to packet, the size of fragment is equal to current remaining radio resource quantity.
Specifically, it after receiving end receives the data frame and/or fragment data, is carried out really by responding confirmation management frame
Recognize；It is provided with marker in the confirmation management frame, for indicating whether confirmation opposite end is properly received.
The present invention also provides a kind of data transmission systems, can carry out fragment processing to data according to available channel resources, should
System includes:
Transmitting terminal, the resource for being distributed according to channel send multiple data frames and/or fragment data；
Receiving end, after receiving the data frame and/or fragment data, feedback acknowledgment management frame is confirmed to transmitting terminal；
The confirmation management frame that transmitting terminal is fed back according to receiving end is to received data frame and/or the fragment data progress of having succeeded
Confirmation；The data frame and/or fragment data that are not successfully received are retransmitted；
When being retransmitted, fragment processing is carried out again to data frame and/or fragment data according to current available resources.
The resource that transmitting terminal is distributed according to channel sends multiple data frames and/or fragment data specifically includes:
Transmitting terminal successively takes out whether data decision radio resource sends the data packet enough from data to be sent, if
Resource is enough, sends the remaining total data of the data packet；If insufficient, according to current remaining radio resource quantity to the number
Fragment is carried out according to packet, the size of fragment is equal to current remaining radio resource quantity.
In conclusion wireless data transmission method and system provided by the invention, it can be according to available channel resources pair
Data carry out fragment processing can use channel resource compared with prior art to greatest extent, not by fixed fragment size shadow
It rings；A large amount of fragment can be carried out to avoid in the enough situations of resource, reduction is handled while reducing the expense of radio resource
The processing time of device, reduce overall cost；By confirming immediately, avoid having confirmed that receiving fragment is transmitted several times, while effectively
Reduce network delay.
For the above and related purposes, one or more embodiments include being particularly described below and in claim
In the feature that particularly points out.Certain illustrative aspects are described in detail in the following description and the annexed drawings, and its instruction is only
Some modes in the utilizable various modes of the principle of each embodiment.Other benefits and novel features will be under
The detailed description in face is considered in conjunction with the accompanying and becomes obvious, the disclosed embodiments be all such aspects to be included and they
Be equal.
Detailed description of the invention
Fig. 1 is the data packet format schematic diagram transmitted in the embodiment of the present invention；
Fig. 2 is the confirmation management frame frame composition figure that receiving end is fed back in the embodiment of the present invention；
Fig. 3 is Physical Frame Structure schematic diagram in the embodiment of the present invention；
Fig. 4 a, 4b, 4c and 4d are respectively one of specific embodiment of the invention data transmission state schematic diagram.
Specific embodiment
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to
Practice them.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment
Only represent possible variation.Unless explicitly requested, otherwise individual component and function are optional, and the sequence operated can be with
Variation.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair
The range of bright embodiment includes equivalent obtained by the entire scope of claims and all of claims
Object.Herein, these embodiments of the invention can individually or generally be indicated that this is only with term " invention "
For convenience, and if in fact disclosing the invention more than one, the range for being not meant to automatically limit the application is to appoint
What single invention or inventive concept.
The invention proposes a kind of new slicing schemes, and the program is not fixed fragment length, according to available wireless network number
Fragment is carried out according to resource size.The program by the way of confirming immediately, and by confirming immediately, sender can determine reception
Correctly received data are held, avoids meaningless repeating transmission from having been acknowledged and receives correct data, and according to channel resource
Adjust length in real time to use Internet resources to greatest extent.By confirming immediately, time delay can also be reduced, improve network and ring
Between seasonable.
In order to achieve the object of the present invention, the invention proposes a kind of data transmission methods, can be according to available channel resources
Fragment processing is carried out to data, comprising:
Transmitting terminal sends multiple data frames and/or fragment data according to the resource that channel is distributed；
According to the confirmation management frame of receiving end feedback to having succeeded received data frame and/or fragment data confirms；
The data frame and/or fragment data that are not successfully received are retransmitted；
When being retransmitted, fragment processing is carried out again to data frame and/or fragment data according to current available resources.
The present invention also provides a kind of data transmission systems, can carry out fragment processing to data according to available channel resources, should
System includes:
Transmitting terminal, the resource for being distributed according to channel send multiple data frames and/or fragment data；
Receiving end, after receiving the data frame and/or fragment data, feedback acknowledgment management frame is confirmed to transmitting terminal；
The confirmation management frame that transmitting terminal is fed back according to receiving end is to received data frame and/or the fragment data progress of having succeeded
Confirmation；The data frame and/or fragment data that are not successfully received are retransmitted；
When being retransmitted, fragment processing is carried out again to data frame and/or fragment data according to current available resources.
The resource that transmitting terminal is distributed according to channel sends multiple data frames and/or fragment data specifically includes:
Transmitting terminal successively takes out whether data decision radio resource sends the data packet enough from data to be sent, if
Resource is enough, sends the remaining total data of the data packet；If insufficient, according to current remaining radio resource quantity to the number
Fragment is carried out according to packet, the size of fragment is equal to current remaining radio resource quantity.
In the present invention, the data packet format of transmission is as shown in Figure 1.
The present invention is wrapped in wireless network transmissions data increases versatile MAC head and FCS verification, forms MAC protocol data sheet
First (MPDU), the frame format of MPDU are shown in Fig. 1.As shown in Figure 1, each MPDU can be divided into three parts.
First part is the versatile MAC head of fixed length.
Second part is payload entrained by MPDU.
Part III is verification (FCS) information.
The bit that all fields in mac frame include is sent out according to being numbered from low to high according to sequence from low to high
It is sent to physical layer.Bit in one byte is transmitted to physical layer according to the sequence by left (LSB) to right (MSB).Same field
The bit for inside including corresponds to decimal number such as b9-b11=000 according to number order from low to high, corresponds to 0；B9-b11=
001, corresponding 4.
The meaning of each field of versatile MAC head is as follows:
A. frame controls
Frame control includes protocol version, traffic flow information and frame type etc..
B. fragment number (FSN) field:
Fragment field length is 4 bits, is used to indicate the number of each fragment of MPDU, value range 0-15.When
When MPDU only has a fragment, fragment number is 0；When MPDU has multiple fragments, first fragment number is 0.Same MPDU's
The fragment number of different fragments is incremented by with 1.
C. serial number (SN) field
Sequence number field length is 12 bits, value range 0-4095, to indicate the sequence number of MPDU.One data
The MPDU of all transmissions is assigned a serial number in flowing.The serial number of first MPDU serial number 0, different MPDU is incremented by with 1.
D. fragment indication field:
Fragment indication field length is 1 bit.In all data frames or have in sequence number management control frame, if below also
There is the fragment of current MPDU, which is arranged to 1；Otherwise, which is arranged to 0.
E. length field
Length field is 12 bits, indicates the total byte length of all fields between MAC header field and FCS field.
The bitmap bitmap of data packet being identified through in confirmation management frame field is realized.The confirmation management of receiving end feedback
Frame frame is constituted as shown in Fig. 2, the field being provided with has: start sequence number (SSN, Start Serial Number) bitmap
Which bitmap is used to indicate in multiple MPDU or fragment and is properly received by receiving end.
Confirmation each field meanings of management frame frame are shown in Table 1.
Table 1 confirms the frame description of management frame
The present invention defines a physical frame and is divided into downstream cycle and upward cycle, and Physical Frame Structure is as shown in Figure 3.Downlink week
Phase sends the confirmation message DACK and downlink data of upstream data from CAP to STA, and upward cycle sends lower line number from STA to CAP
According to confirmation message UACK and upstream data.It can receive or send more packet MPDU within the uplink and downlink period, while passing through DACK
Or the Bitmap in UACK confirms more MPDU immediately.Since uplink and downlink business datum is mutually indepedent, business number will be sent
According to a side be defined as transmitting terminal, the side for receiving business datum is defined as receiving end.
Transmitting terminal requires to obtain the confirmation message of last time transmission situation before each transmission in the present invention.Transmitting terminal can root
It is believed that the number of resources that road is distributed sends multiple whole frame data and/or fragment data.Transmitting terminal successively takes from data to be sent
Whether data decision radio resource sends the data packet enough out, if resource is enough, sends the remaining whole numbers of the data packet
According to.If insufficient, fragment is carried out to the data packet according to current remaining radio resource quantity, the size of fragment is equal to surplus at present
Remaining radio resource quantity.
After receiving end receives MPDU/ fragment data, confirmed by responding confirmation management frame.Confirm management frame Bitmap
In every 1bit indicate whether some MPDU/ fragment is properly received.Transmitting terminal according to the bit validation of information opposite end in Bitmap whether
It is properly received.
For the fragment packets that receiving end does not receive, fragment data packet length is not required and the last time when originator retransmits again
Length is consistent.The case where to prevent ACK from losing, the fragment data that receiving end receives need to check the serial numbers of current slice data with
Whether fragment number is consistent with received serial number and fragment number.If consistent indicate that the ACK replied before loses, current point is used
Piece replaces last time received fragment.
For the fragment packets that receiving end has received, transmitting terminal sends next fragment according to the position of last time fragment, under
The size of one fragment is related with the radio channel resource size currently obtained.Originator can be according to the variation of wireless channel to same
One data packet carries out multiple fragment, and receiving end splices the partial data message of the same serial number in receiving end according to fragment number
Get up.
For the whole packet that receiving end does not receive, originator can carry out fragment when retransmitting again, the mechanism of fragment and first
Fragment is identical, therefore in a physical frame, the fragment that might have the whole packet of the different serial numbers of multiple correspondences needs to send.
Same physical frame only allows to occur one No. SN, but can send the data packet of multiple and different SN.One packet business number
Once please be confirmed according to fragment, then do not sent according still further to whole packet format.
Embodiment
If the data packet for sharing 4 1.5kB is to be transmitted, data packet SN is respectively 1,2,3,4.1st the divided resource of frame
For 5kB, No. SN can be transmitted as 1/2/3 complete package data and the 500 byte fragments of SN=4, it is assumed that receive ACK situation such as Fig. 4 a institute
Show, SN1/2 transmission unsuccessfully needs to retransmit.
2nd the divided resource of frame is 500 bytes, then preferentially sends SN1 data packet.Only due to available resources (or surplus resources)
SN1 data are carried out fragment processing by 500 bytes.Assuming that it is as shown in Figure 4 b to receive ACK situation.0 transmission success of SN1 fragment, remaining
Continue to send to next frame in part.
3rd the divided resource of frame is 1.5kB, then continues to send the remaining fragment of SN1 data packet and the partial data of SN2, false
If receiving ACK situation as illustrated in fig. 4 c, the transmission failure of SN1 fragment 1,0 transmission success of SN2 fragment.
4th the divided resource of frame is 3kB, then sends the remaining fragment of SN1/2/4 data packet, it is assumed that receives ACK situation as schemed
Shown in 4c, the success of SN1/2/4 sliced transmission.
All data transmission are completed to this.
Compared with fixed fragment threshold schemes in the prior art, the present invention is had the advantage that
1, channel resource can be used to greatest extent, do not influenced by fixed fragment size
2, a large amount of fragment can be carried out to avoid in the enough situations of resource, drop while reducing the expense of radio resource
The processing time of low processor, reduce overall cost
3, by confirming immediately, avoid having confirmed that receiving fragment is transmitted several times, while effectively reducing network delay.
It will be understood by those skilled in the art that the various illustrative methods here in conjunction with the disclosed embodiments description walk
Rapid and device unit can be realized with the combination of electronic hardware, software or both.In order to be clearly shown hardware and software it
Between interchangeability, the above description various illustrative steps and unit carried out in the form of its is functional generally.
This functionality be with hardware realization or the design implemented in software realized dependent on specific application and whole system about
Beam.Those skilled in the art can realize described function in many ways for each specific application, but this
The result that kind is realized should not be construed as away from the scope of the present invention.
The step of method in conjunction with described in embodiment disclosed above, can be embodied directly in hardware, by processor execution
Software module or the combination of both.Software module is likely to be present in RAM memory, flash memory, ROM memory, EPROM storage
The storage of device, eeprom memory, register, hard disk, mobile disk, CD-ROM or any other form well known in the art
In medium.A kind of exemplary storage medium is coupled with processor, so that processor can read information from the storage media, and
It can be to the storage media write information.In replacement example, storage media is the component part of processor.Processor and storage media
It is likely to be present in an ASIC.The ASIC is likely to be present in a subscriber station.In a replacement example, processor and deposit
Storage medium can be used as the presence of the discrete assembly in subscriber station.
According to the disclosed embodiment, those skilled in the art can be made to can be realized or using the present invention.It is right
For those skilled in the art, the various modifications of these embodiments are it will be apparent that and the general principles that define here
It can also be applied to other embodiments on the basis of not departing from the scope and spirit of the present invention.Embodiment described above is only
Presently preferred embodiments of the present invention is not intended to limit the invention, all within the spirits and principles of the present invention, made
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of data transmission method, which is characterized in that carry out fragment processing to data according to available channel resources, comprising:
Transmitting terminal sends multiple data frames and/or fragment data according to the resource that channel is distributed；
According to the confirmation management frame of receiving end feedback to having succeeded received data frame and/or fragment data confirms；To not
The data frame and/or fragment data of successful reception are retransmitted；
When being retransmitted, fragment processing is carried out again to data frame and/or fragment data according to current available resources.
2. the method as described in claim 1, which is characterized in that the transmitting terminal sends multiple according to the resource that channel is distributed
Data frame and/or fragment data specifically include:
Transmitting terminal successively takes out whether data decision radio resource sends the data packet enough from data to be sent, if resource
Enough, the remaining total data of the data packet is sent；If insufficient, according to current remaining radio resource quantity to the data packet
Fragment is carried out, the size of fragment is equal to current remaining radio resource quantity.
3. the method as described in claim 1, which is characterized in that specifically include:
After receiving end receives the data frame and/or fragment data, confirmed by responding confirmation management frame；The confirmation pipe
It is provided with marker in reason frame, for indicating whether confirmation opposite end is properly received.
4. method according to any one of claims 1 to 3, which is characterized in that
The data frame is Medium Access Control (MAC) Protocol Data Unit
5. a kind of data transmission system, which is characterized in that carry out fragment processing, the system packet to data according to available channel resources
It includes:
Transmitting terminal, the resource for being distributed according to channel send multiple data frames and/or fragment data；
Receiving end, after receiving the data frame and/or fragment data, feedback acknowledgment management frame is confirmed to transmitting terminal；
The confirmation management frame that transmitting terminal is fed back according to receiving end carries out succeeded received data frame and/or fragment data true
Recognize；The data frame and/or fragment data that are not successfully received are retransmitted；
When being retransmitted, fragment processing is carried out again to data frame and/or fragment data according to current available resources.
6. system as claimed in claim 5, which is characterized in that the transmitting terminal sends multiple according to the resource that channel is distributed
Data frame and/or fragment data specifically include:
Transmitting terminal successively takes out whether data decision radio resource sends the data packet enough from data to be sent, if resource
Enough, the remaining total data of the data packet is sent；If insufficient, according to current remaining radio resource quantity to the data packet
Fragment is carried out, the size of fragment is equal to current remaining radio resource quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711461003.5A CN109861797B (en) | 2017-12-28 | 2017-12-28 | Data transmission method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711461003.5A CN109861797B (en) | 2017-12-28 | 2017-12-28 | Data transmission method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109861797A true CN109861797A (en) | 2019-06-07 |
| CN109861797B CN109861797B (en) | 2022-07-15 |
Family
ID=66889517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711461003.5A Active CN109861797B (en) | 2017-12-28 | 2017-12-28 | Data transmission method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109861797B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618880A (en) * | 2019-09-19 | 2019-12-27 | 中国银行股份有限公司 | Cross-system data transmission system and method |
| CN113300817A (en) * | 2020-09-22 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Data transmission method and device |
| CN115297168A (en) * | 2022-06-28 | 2022-11-04 | 中国南方电网有限责任公司超高压输电公司 | Big data packet transmission method applied to power Internet of things |
| CN115967469A (en) * | 2022-11-18 | 2023-04-14 | 中国电子科技集团公司第三十研究所 | Data auto-negotiation transmission method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166974A (en) * | 2013-03-28 | 2013-06-19 | 浙江理工大学 | Stream media wireless transmission method based on mix protocol of transmission control protocol and user datagram protocol |
| US20150078376A1 (en) * | 2013-09-13 | 2015-03-19 | Smg Holdings--Anova Technologies, Inc. | Packet sharing data transmission system and relay to lower latency |
| CN106230564A (en) * | 2016-07-27 | 2016-12-14 | 重庆重邮汇测通信技术有限公司 | The weight fragment data storage of wireless chain control layer determination transmission mode and method for sorting |
-
2017
- 2017-12-28 CN CN201711461003.5A patent/CN109861797B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166974A (en) * | 2013-03-28 | 2013-06-19 | 浙江理工大学 | Stream media wireless transmission method based on mix protocol of transmission control protocol and user datagram protocol |
| US20150078376A1 (en) * | 2013-09-13 | 2015-03-19 | Smg Holdings--Anova Technologies, Inc. | Packet sharing data transmission system and relay to lower latency |
| CN106230564A (en) * | 2016-07-27 | 2016-12-14 | 重庆重邮汇测通信技术有限公司 | The weight fragment data storage of wireless chain control layer determination transmission mode and method for sorting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618880A (en) * | 2019-09-19 | 2019-12-27 | 中国银行股份有限公司 | Cross-system data transmission system and method |
| CN113300817A (en) * | 2020-09-22 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Data transmission method and device |
| CN113300817B (en) * | 2020-09-22 | 2023-09-15 | 阿里巴巴集团控股有限公司 | Data transmission method and device |
| CN115297168A (en) * | 2022-06-28 | 2022-11-04 | 中国南方电网有限责任公司超高压输电公司 | Big data packet transmission method applied to power Internet of things |
| CN115297168B (en) * | 2022-06-28 | 2023-07-18 | 中国南方电网有限责任公司超高压输电公司 | Big data packet transmission method applied to electric power Internet of things |
| CN115967469A (en) * | 2022-11-18 | 2023-04-14 | 中国电子科技集团公司第三十研究所 | Data auto-negotiation transmission method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109861797B (en) | 2022-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7408904B2 (en) | Method and apparatus for reducing uplink and downlink transmission errors by supporting adaptive modulation and coding and hybrid automatic repeat request functions | |
| US9118476B2 (en) | Transmission control method | |
| CN101310503B (en) | Method and apparatus for supporting voice over ip services over a cellular wireless communication network | |
| CN101107790B (en) | Multi-carrier incremental redundancy for packet-based wireless communications | |
| CN102299772B (en) | Method for receiving and managing a downlink radio link control data block in an EPRS mobile electronic communication device | |
| US20020001296A1 (en) | Data transmission method for hybrid ARQ type II/III downlink of wide-band radio communication system | |
| CN109861797A (en) | A kind of data transmission method and system | |
| CA2486977A1 (en) | Hybrid arq for a wireless ad-hoc network and a method for using the same | |
| US20050008026A1 (en) | Packet transceiver apparatus | |
| JP2008228357A (en) | Method of transmitting and method of receiving subpacket in parallel channel encoder packet transmission system | |
| CN108521316B (en) | Hybrid automatic repeat request method and device | |
| CN105471549A (en) | Block acknowledgement system and block acknowledgement method based on A-MPDU sub-frame position information control | |
| TW536895B (en) | Two stage data packet processing scheme | |
| CN103312478A (en) | Method and system for data transmission in a data network | |
| CN113055285B (en) | Self-adaptive data transmission method based on MPTCP and network coding | |
| CN108933642B (en) | Downlink retransmission method based on code block grouping, base station and terminal | |
| CN106658223A (en) | Video uplink transmission method and video uplink transmission device in long-term evolution LTE network | |
| US20190356422A1 (en) | Wireless communication system, base station device, terminal device, and wireless communication method | |
| CN103607264A (en) | 3G network-based in-band data transmission method | |
| CN104735720A (en) | Machine class communication service information transmission method, base station, terminals and system | |
| CN116261834A (en) | Rate-less decoding of layer two protocol layers | |
| CN109150422B (en) | Data transmission method and terminal | |
| CN100553183C (en) | The method and apparatus that transmits and receive data highly reliably in the mobile communication system | |
| CN110011753B (en) | Service processing method, transceiving equipment and computer readable storage medium | |
| US8411697B2 (en) | Method and arrangement for improving media transmission quality using robust representation of media frames |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |