CN107707337A - Rearrangement method and its device - Google Patents
Rearrangement method and its device Download PDFInfo
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- CN107707337A CN107707337A CN201710219865.0A CN201710219865A CN107707337A CN 107707337 A CN107707337 A CN 107707337A CN 201710219865 A CN201710219865 A CN 201710219865A CN 107707337 A CN107707337 A CN 107707337A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1835—Buffer management
- H04L1/1841—Resequencing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
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- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Communication Control (AREA)
Abstract
The invention discloses a kind of rearrangement method and its device.Wherein, rearrangement method includes：Data cell is received from wireless network by terminal installation, wherein, the data cell has respective sequence number；In the protocol layer of protocol stack, the data cell is reset according to the sequence number, for next process；The dependence of the data cell and one or more lost data units is determined, wherein one or more lost data units have the sequence number prior to the data cell；And when the data cell is independently of one or more lost data units, it will not sent in advance to next process by the data cell of the sequential orders.Rearrangement method and its device provided by the invention can reduce delay.
Description
Cross reference
The following priority of application claims：Numbering is 15/414,368, and the applying date is on January 24th, 2017, entitled
" Method and Apparatus for Reordering " U.S. Patent application；Numbering is 62/372,338, and the applying date is
On August 9th, 2016, entitled " WiFi RX Reorder Buffer Enhancement " U.S. Provisional Patent Application.On
U.S. Patent application is stated to be incorporated herein by reference.
Technical field
The present invention relates to a kind of rearrangement method and its device.Especially, the present invention relates to one kind according between data cell
Dependence, be handled differently rearrangement (reorder) method and its device of data cell.
Background technology
In wireless communications, reordering operations are generally performed to be used to sequentially transmit.In UMTS
(Universal Mobile Telecommunications System, UMTS) or Long Term Evolution (Long-Term
Evolution, LTE) in technology, due to switching (handover) and rebuilding (reestablishment), Yong Hushe
The standby data cell that can receive non-arranged in sequence.According to UMTS or LTE technologies, user equipment uses the association with multiple protocol layers
Discuss stack and handle above-mentioned data cell.One of protocol layer (for example, packet data convergence protocol, referred to as PDCP layers), root
According to sequence number sequentially data rearrangement unit, and then sending the data cell of arrangement sequentially to upper protocol layer (upper
protocol layer)。
The content of the invention
In view of this, the invention discloses a kind of rearrangement method and its device.
According to embodiments of the present invention, there is provided a kind of rearrangement method, comprising：Data are received from wireless network by terminal installation
Unit, wherein, the data cell has respective sequence number；In the protocol layer of protocol stack, the data sheet is reset according to the sequence number
Member, for next process；The dependence of the data cell and one or more lost data units is determined, wherein this
Or multiple lost data units have the sequence number prior to the data cell；And when the data cell is independently of this or more
During individual lost data units, it will not sent in advance to next process by the data cell of the sequential orders.
According to another embodiment of the present invention, there is provided a kind of device, comprising：Receiving circuit, configure to be received from wireless network
Wireless signal, and in response to the wireless signal, data cell is generated, wherein, the data cell has respective sequence number；And
Process circuit, configure in the protocol layer of protocol stack, to reset the data cell according to the sequence number and be used for next process；It is determined that should
The dependence of data cell and one or more lost data units, wherein one or more lost data units have first
In the sequence number of the data cell；And when the data cell is independently of one or more lost data units, it will not press
The data cell of the sequential orders is sent to next process in advance.
Rearrangement method and its device provided by the invention can reduce delay.
Brief description of the drawings
Fig. 1 is the schematic diagram of the communication system described according to embodiments of the present invention；
Fig. 2 is the schematic diagram that data cell is reset and transmitted in the Wi-Fi protocol stacks described according to embodiments of the present invention；
Fig. 3 is the flow chart that the data cell described according to embodiments of the present invention resets the process with transmitting；
Fig. 4 is the schematic diagram that data cell is reset and transmitted in the LTE protocol stack described according to embodiments of the present invention；
Fig. 5 is the flow chart that the data cell described according to embodiments of the present invention resets the process with transmitting.
Embodiment
Some vocabulary has been used among specification and claims to censure specific element.Art
Technical staff is, it is to be appreciated that hardware manufacturer may call same element with different nouns.This specification and right
In a manner of claim is not using the difference of title as differentiation element, but the standard distinguished is used as using the difference of element functionally
Then.Be an open term in the "comprising" mentioned in specification in the whole text and claim, thus should be construed to " include but
It is not limited to ".In addition, " coupling " one word is herein comprising any direct and indirect electrical connection.Therefore, if described in the text
First device is coupled to second device, then second device can be directly electrically connected in by representing first device, or pass through other devices
Or connection means are electrically connected to second device indirectly.
Following description is to realize highly preferred embodiment of the present invention, its be in order to describe the purpose of the principle of the invention, and
Non- limitation of the present invention.It is to be understood that the embodiment of the present invention can be by software, hardware, firmware or its any combination Lai real
It is existing.
Fig. 1 is the schematic diagram of the communication system 100 described according to embodiments of the present invention.Communication system 100 can include electronics
Device 110, for receiving radio communication service from network 105.Electronic installation 100 can receive multiple data cells from network 105.
Multiple data cells can be received according to unordered sequence number.Electronic installation 110 can include with multiple protocol layers protocol stack with
Handle multiple data cells.Protocol stack can include specific protocol layer with data rearrangement unit, and data rearrangement unit is carried
It is supplied to next process (for example, upper protocol layer).When data cell is independently of one of the sequence number with prior to the data cell
Or during multiple lost data units (missing data unit), can configure specific protocol layer will not press the number of sequential orders
Sent in advance according to unit to next process.
Network 105 can include any matching radio communication service provider network, for example, mobile service provider network,
Wi-Fi service provider networks etc..In embodiment, network 105 includes mobile service provider network 101, and it, which can be used, appoints
Anticipate the mobile communication technology to match, such as the third generation (3G) mobile network technology, forth generation (4G) mobile network technology, the 5th generation
(5G) mobile network technology, global system for mobile communications (GSM), Long Term Evolution (LTE), UMTS (UMTS)
Deng.Mobile service provider network 101 can include multiple nodes, such as interface node 102, core node 103 etc., and it is by appointing
Meaning matching network technology (for example, wired, wireless, optical fiber etc.) is coupled to each other.
In this example, interface node 102 (for example, base transceiver station, node B, improvement node B etc.) is included in interface section
The nextport hardware component NextPort and component software of radio communication are implemented in configuration between point 102 and electronic installation (such as electronic installation 110), its
In, above-mentioned electronic installation has the subscribing service that mobile service provider network 101 provides.Further, in this example, core
Node 103 includes nextport hardware component NextPort and manages and control mobile service provider network 101 with component software to form backbone network
The business of offer.
In another embodiment, network 105 includes WLAN (WLAN) 106, and the wireless mark of any matching can be used in it
Standard, for example, the standards of various IEEE 802.11.For example, WLAN 106 can include the multiple wlan devices 107 being coupled to each other, switch
(not shown), management server (not shown) etc..Wlan device can be access point (AP), base station etc..In this example, wlan device
107 include nextport hardware component NextPort and component software, configure wlan device 107 and electronic installation in connection WLAN 106 (for example, electronics
Device 110) between implement radio communication.
It is worth noting that, network 105 can be included using any matching network technology (for example, wired, wireless, honeycomb leads to
Letter technology, LAN, WLAN, fiber optic network, wide area network, point to point network, internet etc.) other mating components (do not show
Go out).
Electronic installation 110 can be any matching electronic installation that radio communication is carried out with network 105.In this example, electronics
Device 110 can be the terminal installation (user equipment) that use of terminal user in mobile communication, for example, cell phone, smart mobile phone,
Tablet personal computer, Internet of Things (IoT) device etc..As shown in figure 1, electronic installation 110 can include the transmission circuit 120 that is coupled to each other with
Process circuit 130.In another example, single emitter can be used to replace transmission circuit 120 with receiver.
Configuration transmission circuit 120 receives and sends wireless signal.In this example, transmission circuit 120 can include coupling antenna
The radiating circuit (not shown) and receiving circuit (not shown) of (not shown).Radiating circuit can be emitter and receiving circuit
It can be receiver.The electromagnetic wave that configurable receiving circuit generation electronic signal is caught with responsive antenna, handle electronic signal with from
Binary data stream is extracted in electronic signal, and the binary data according to data unit form is provided to process circuit 130
Stream.In this example, it can configure transtation mission circuit and receive data cell, such as management frame, data frame etc., generation from process circuit 130
Radiofrequency signal launches electromagnetic wave to send the wireless communication of carrying data cell in the air to carry data cell by antenna
Number.
It is worth noting that, in this example, transmission circuit 120 is can configure according to matching Wi-Fi standards (for example, IEEE
802.11 standards) receive and send wireless signal.In another example, transmission circuit 120 is can configure according to matching mobile communication
Technology (for example, 3G mobile networks technology, 4G mobile networks technology, 5G mobile networks technology, GSM, LTE etc.) receives and sends nothing
Line signal.In another example, transmission circuit 120 includes and is received according to matching Wi-Fi standard configurations and send wireless signal
Part I receives and sent the Part II of wireless signal with being configured according to matching mobile communication technology.
In embodiment, configuration transmission circuit 120 supports dual downlink path.In this example, transmission circuit 120 includes two
Receiving circuit, configuration receive the wireless signal of carrying data cell from two base stations of LTE network simultaneously.In another example,
Transmission circuit 120 includes the first receiving circuit and the second receiving circuit, wherein configuring base station of first receiving circuit from LTE network
The wireless signal of carrying data cell is received, and the second receiving circuit of configuration receives carrying number from WLAN 160 wlan device
According to the wireless signal of unit.First receiving circuit is simultaneously operable with the second receiving circuit to receive the wireless of carrying data cell
Signal.
Configurable processing circuit 130 performs the various operations of base band side.Any matching technology can be used in process circuit 130.
In embodiment, process circuit 130 uses pure circuit.In another embodiment, process circuit 130 is handled using one or more
Device (not shown) and storage circuit (not shown).Configurable storage circuit data storage and software instruction.Configurable one or
Multiple computing device software instructions are to carry out various operations.
According to embodiment, process circuit 130 can handle the data received according to protocol stack 140 (having multiple protocol layers)
Unit.In this example, upper protocol layer needs the data cell sequentially transmitted from lower protocol layer.One protocol layer, such as Fig. 1
In L (N) protocol layer 150, can be according to sequence number data rearrangement unit.
In this example, network 105 is sent with respective sequence number according to matching wireless communication protocol to electronic installation 110
Multiple data cells.In this example, above-mentioned sequence number is incremented by order.In embodiment, WLAN 106 shape of wlan device 107
Into multiple data cells with respective sequence number (such as the 2nd layer sequence number, for example), and by above-mentioned multiple data cells send to
Electronic installation 110.In another embodiment, one or more of mobile service supplier 101 node, which is formed, has each author's preface
Multiple data cells of row number (for example, in sequence number of PDCP layers), and above-mentioned multiple data cells are sent to electronics and filled
Put 110.
It is worth noting that, in different agreement layers, other term description data cells can be used.For example, can be by 7 layers of opening
Data frame in the data link layer of system interconnection mode (OSI model) is referred to as data cell.In another example, per number
According to unit can be Service Data Unit (SDU), medium access control Service Data Unit (MSDU), polymerization MSDU (A-MSDU),
Media access control protocol data cell (MPDU), polymerization MPDU (A-MPDU).In embodiment, it will can pass through from lower protocol layer
The data cell that L (N) protocol layer 150 receives is referred to as MPDU (or A-MPDU), at the same time can export L (N) protocol layer 150
Data cell to relatively upper L (N+1) protocol layer 160 is referred to as MSDU (or A-MSDU).
According to the present invention, due to a variety of causes (for example, weak connectedness, data unit loss and re-transmission, switching and reconstruction,
Dual path etc.), electronic installation 110 can be received not by multiple data cells of sequential orders.In the example of fig. 1, can be from net
Network 105 sends 5 data cells with sequence number S1-S5 to electronic installation 110.In this example, S1 is positive integer, and S2 compares S1
Big 1, S3 is bigger 1, S4 than S2 bigger 1, S5 than S3 bigger than S4 by 1.First, data are sent according to sequence number S1-S2-S3-S4-S5 order
Unit.However, lost the data cell with sequence number S1 in initial transmission, and can be referred to as losing data sheet
Member.Network 105 can resend the lost data units with original sequence number, and therefore, electronic installation 110 can be according to S2-S3-
S4-S5-S1 order receives data cell.
Process circuit 130 can receive data cell from transceiver 120, and according to the processing data unit of protocol stack 140.
In Fig. 1 example, configuration L (N) protocol layer 150 resets the data cell received according to sequence number, and further configures L
(N) protocol layer 150 by the unordered data cell independently of one or more lost data units send in advance for it is next enter
Journey.
In this example, when L (N) protocol layer 150 receives particular-data unit, L (N) protocol layer 150 can be according to sequence number
Determine particular-data unit whether arranged in sequence., can be by specific data when particular-data unit is according to sequence number arranged in sequence
Unit is transferred to next process, such as is transferred to L (N+1) protocol layer 160.When particular-data unit is sequentially arranged not according to sequence number
During row, whether L (N) protocol layer 150 determines particular-data unit independently of one or more lost data units, wherein, it is above-mentioned
One or more lost data units have the sequence number prior to particular-data unit.When particular-data unit is independently of above-mentioned one
During individual or multiple lost data units, particular-data unit can be transferred to next process, such as be transferred to L (N+1) protocol layer
160。
Especially, in the example of fig. 1, the data cell with sequence number S3, S4, S5 is independently of with sequence number S1's
Lost data units, and the data cell with sequence number S2 is not independently of the lost data units with sequence number S1.Work as L
(N) when the reception of protocol layer 150 has S2 data cell, data cell of the caching with S2, such as be buffered in rearrangement and delayed
Rush in device 170.L (N) protocol layer 150 is detectable not to receive the data cell with S1 (prior to S2), therefore, has S1 number
It is lost data units according to unit.In addition, when L (N) protocol layer 150 not can determine that the data cell with S2 independently of loss number
During according to unit, the data cell with S2 is cached to wait the reception of the data cell with S1.
When L (N) protocol layer 150 receive the data cell with S3 and determination the data cell with S3 independently of with
During S1 lost data units, therefore, in the case of without waiting for the data cell with S1 is received, L (N) protocol layer 150 can
Handle and transmit the data cell with S3 to L (N+1) protocol layer 160.Similarly, L (N) protocol layer 150 can be received and handled
Data cell with S4 and S5.In addition, when L (N) protocol layer 150 receives the data cell with S1, L (N) protocol layer 150
The data cell with S1 and the data cell with S2 can be handled, and the data cell with S1 and S2 is transferred to upper strata
L (N+1) protocol layer 160.Therefore, data cell can be delivered sequentially to L by L (N) protocol layer 150 according to S3-S4-S5-S1-S2
(N+1) protocol layer 160.
In associated exemplary, data cell can be transferred to next process according to the order of sequence number, therefore, will can had
Sequence number S3, S4, S5 data cell are cached and wait the reception to the data cell with S1.With associated exemplary phase
Than, electronic installation 110 can processing data unit, such as the data cell with sequence number S3, S4, S5, to reduce delay.
According to the present invention, any matching technology can be used to determine data cell whether independently of one in L (N) protocol layer 150
Individual or multiple lost data units.In this example, L (N) protocol layer 150 determines whether data cell belongs to using for sender
The agreement of independent data cell, therefore, above-mentioned data cell is independently of the independent data unit of other data cells.Use use
In sender independent data cell agreement can be address resolution protocol (Address Resolution Protocol, ARP),
Internet Control Message Protocol (Internet Control Message Protocol, ICMP), domain name system agreement (domain
Name system protocol) etc..
In another example, L (N) protocol layer 150 determines whether the main body (body) of data cell belongs to upper-layer protocol, example
Such as, using the transmission control protocol (Transmission Control Protocol, TCP) of high-rise reordering technique, user data
Datagram protocol (User Datagram Protocol, UDP), DHCP (Dynamic Host
Configuration Protocol, DHCP) etc..When L (N) protocol layer 150 determines that the main body of data cell belongs to using high-rise
During the upper-layer protocol of reordering technique, L (N) protocol layer 150 determines that above-mentioned data cell loses data sheet independently of one or more
Member.In this example, dialogue-based sequence number, TCP can enter rearrangement.Additional session sequence number can be used to control session sequentially
Transmit.For example, L (N) protocol layer 150 extracts high layer information from the main body of data cell, for example, session sequence number, and make
Reordering operations are assisted with above-mentioned high layer information.In another example, UDP message unit can include the data cell in application layer
Positional information to assist sequentially to transmit.In another example, multiple fields based on DHCP protocol, DHCP data sheets are reset
Member.
Fig. 2 is the signal that data cell is reset and transmitted in the Wi-Fi protocol stacks 240 described according to embodiments of the present invention
Figure.In this example, Wi-Fi protocol stacks 240 are used in the protocol stack 140 of electronic installation 110.
According to the present invention, Wi-Fi protocol stacks 240 can include multiple protocol layers, for example, (open system is mutual for data link layer
The 2nd layer of gang mould formula) 250, Internet (the 3rd layer of development system interconnection mode) 260 etc..It is worth noting that, Wi-Fi agreements
Stack 240 can include other layers not shown in Fig. 2, for example, transport layer (the 4th layer of development system interconnection mode) etc..
Wi-Fi protocol stacks 240 can be handled from lower protocol layer (for example, data link layer 250) to upper protocol layer and sent
Receive data cell.Configurable data link layer 250 provide the second layer service, for example, access wireless media management, flow control,
Wrong control etc..In embodiment, each data cell can be SDU, MSDU, A-MSDU, MPDU, A-MPDU.In embodiment,
The data cell received by data link layer 250 from physical layer can be described as MPDU (or A-MPDU), at the same time, data link layer
250 outputs to the data cell of Internet 260 can be MSDU (or A-MSDU).
According to the present invention, the operation performed in data link layer 250 can be reordering operations, with according to the 2nd sequence
Row number data rearrangement unit.According to the present invention, when particular-data unit is independently of one or more lost data units, configuration
Data link layer 250 sends disorderly arranged above-mentioned particular-data unit to next process (for example, data link layer in advance
Next process in 250, or next process in Internet 260).
Especially, in embodiment, wlan device (for example, access point device) can form the number with the 2nd layer sequence number, for example
Sent according to unit, and by the data cell with the 2nd layer sequence number, for example to electronic installation 110.In this example, wlan device is formed
There are sequence number S1-S5 5 data cells respectively, and above-mentioned data cell is sent to electronic installation 110.In example
In, S1 is positive integer, and S2 is bigger 1, S3 than S1 bigger 1, S4 than S2 bigger 1, S5 than S3 bigger than S4 by 1.First, according to sequence number S1-S2-
S3-S4-S5 order sends data cell.However, the data cell with sequence number S1 is lost in initial transmission, and
Lost data units can be referred to as.Therefore, electronic installation 110 can receive data cell according to S2-S3-S4-S5 order.
In example, when detecting above-mentioned lost data units, wlan device retransmits the data sheet with original 2nd layer sequence number, for example S1
Member.
In embodiment, configurable data link layer 250 is according to the 2nd layer sequence number, for example data rearrangement unit.In this example, number
According to link layer 250 using with arrange windows (reordering window) reorder buffer 270 with data rearrangement unit.
For example, data cell of the configuration caching of reorder buffer 270 in disordered state, and configure the trace cache data that arrange windows
The sequence number of unit.In this example, arrange windows and include the time slot (slot) of continuous corresponding sequence number.Arrange windows can have when
Gap head (H) and time slot tail (T), wherein, the sensing of time slot head has the time slot of minmal sequence number in arranging windows, and time slot tail refers to
There is the time slot of maximum sequence number in arranging windows.The time slot that time slot head points to can correspond to the 2nd next estimated sequence of layer
Number.The time slot that time slot tail points to can correspond to the layer sequence number, for example of maximum the 2nd that data cell is received in data link layer 250.
In this example, the time slot in arranging windows has three states, for example, idle condition (E), buffer status (B), biography
State (D) is passed, and process is reset using above three state recording data cell.When time slot has idle condition, do not connect
Receive with to should time slot sequence number data cell, and the data cell is referred to as lost data units.Work as time slot
During with buffer status, receive with to should time slot sequence number data cell and be buffered in reorder buffer
In.When time slot has transmission state, receive with to should time slot sequence number data cell, and be passed to down
One process, such as Internet 260.
In this example, when data link layer 250 receives data cell, by buffering data units in reorder buffer 270
In, and correspondingly renewal arranges windows.In this example, when data cell has more than time slot head but less than the sequence of time slot tail
Number when, the time slot in the arranging windows of corresponding above-mentioned sequence number is updated using buffer status (B).
When data cell has the sequence number of time slot head, data cell can be transferred to next process, and will reset
The time slot head of window is updated to next time slot.It is worth noting that, when new time slot head is in buffer status, will can have corresponding
The buffered data units of the sequence number of new time slot head are transferred to Internet, and update time slot head again until new time slot head has
Untill idle condition.
When data cell has the sequence number more than time slot tail, the new time slot of corresponding sequence number is updated to buffer status
(B) and time slot tail is updated to point to new time slot.
Especially, in this example, the data cell with sequence number S3, S4, S5 is independently of the data with sequence number S1
Unit, and the data cell with sequence number S2 is not independently of the data cell with sequence number S1.In this example, there is sequence
Row number S3 data cell belongs to the agreement for being used for sender using independent data unit, for example, ARP, ICMP, DNS Protocol etc..Value
It is noted that for ICMP, DNS Protocol, it is excessive if there is ICMP, DNS data bag because next layer protocol is IP layers
Situation, it can be split, the data after segmentation carry out judging whether to belong to identical data according to IP layers.In this example,
The main body of data cell with sequence number S4 and S5 belongs to TCP, and it is using TCP sessions sequence number to ensure sequentially to transmit.
In operation, by taking Fig. 2 as an example, the time slot head to arrange windows points to the time slot of corresponding S1 (it is minmal sequence number).
When data link layer 250 receives the data cell with sequence number S2, the buffering data units with sequence number S2 can be existed
In reorder buffer 270.Data link layer 250 is detectable not to receive the data cell with sequence number S1, therefore, has
Sequence number S1 data cell is lost data units.Further, when data link layer 250 not can determine that with sequence number S2
Data cell independently of lost data units when, by the data cell with sequence number S2 cached with wait with sequence
The reception of number S1 data cell.In addition, corresponding S2 time slot is updated to buffer status, and the time slot tail that will be arranged windows
Point to corresponding S2 time slot.
When data link layer 250 receives the data cell with sequence number S3, data link layer 250 can determine that with sequence
Row number S3 data cell belongs to the agreement for being used for sender using independent data unit, for example, ARP, ICMP, DNS Protocol etc., because
This, the data cell with sequence number S3 is independently of lost data units.Then, without waiting for reception lost data units feelings
Under condition, the data cell with sequence number S3 can be transferred to next process, such as Internet 260 by data link layer 250.Connect
, corresponding S3 time slot is updated to transmission state, and the time slot tail to arrange windows is pointed to corresponding S3 time slot.
Similarly, when data link layer 250 receives the data cell with sequence number S4, data link layer 250 can be true
Surely there is the main body of sequence number S4 data cell to belong to ensures the TCP that sequentially transmits using TCP session sequence numbers, therefore, tool
There is sequence number S4 data cell independently of lost data units.Then, in the case of without waiting for lost data units are received,
Data cell with sequence number S4 can be transferred to next process, such as Internet 260 by data link layer 250.Then, will be right
Answer S4 time slot to be updated to transmission state, and the time slot tail to arrange windows is pointed to corresponding S4 time slot.
Similarly, when data link layer 250 receives the data cell with sequence number S5, data link layer 250 can be true
Surely there is the main body of sequence number S5 data cell to belong to ensures the TCP that sequentially transmits using TCP session sequence numbers, therefore, tool
There is sequence number S5 data cell independently of lost data units.Then, in the case of without waiting for lost data units are received,
Data cell with sequence number S5 can be transferred to next process, such as Internet 260 by data link layer 250.Then, will be right
Answer S5 time slot to be updated to transmission state, and the time slot tail to arrange windows is pointed to corresponding S5 time slot.
In the figure 2 example, before lost data units are received, by the data cell transmission with sequence number S3, S4, S5
To next process, therefore, the method for data cell of the processing with sequence number S3, S4, S5 of the invention can reduce delay.
Fig. 3 is the flow chart that the data cell described according to embodiments of the present invention resets the process 300 with transmitting.In example
In, protocol layer (for example, data link layer 250 in Wi-Fi protocol stacks 240) executive process can be passed through in process circuit 130
300.Process 300 starts from step S301, and enters step S310.
In step S310, data cell is received in protocol layer.In this example, transmission circuit 120 generates electric signal to respond
The electromagnetic wave of antenna trapping, above-said current signal is handled to extract binary stream from electric signal, and according to data unit form
Binary stream is provided to process circuit 130.Then, data link layer 250 receives above-mentioned data cell.
In step S320, protocol layer can determine that whether data cell arranges in order.In this example, when arranging windows
In, when data cell has the sequence number of time slot head, data cell arranges in order.For example, when data cell has sequence
During row number S1, data cell arranges in order.When data cell has the sequence number more than time slot head, data cell is not
Arrange in order.When data cell arranges in order, process enters step S330；Otherwise, process enters step S360.
In step S330, data cell is transferred to next process.In this example, data link layer 250 can transmit data
Unit is used for next process, and processed data cell is transferred into Internet 260.In another example, data link
Data cell can be transferred to Internet 260 by layer 250.In this example, when data link layer 250 receives the number with sequence number S1
During according to unit, data cell is transferred to next process and Internet 260.
In step S340, the buffered data units with continuous sequence number can be transferred to next process.In this example, when
Arrange windows when not having lost data units, the buffered data units in arranging windows can be transferred to by data link layer 250
Next process.In this example, when arranging windows with multiple lost data units, data link layer 250 can continuously transmit tool
There are buffered data units prior to the sequence number of next lost data units to next process.Processed data cell can be passed
It is handed to Internet 260.In the figure 2 example, before the data cell with sequence number S1 is received, caching has sequence number S2
Data cell., can when receiving the data cell with sequence number S1 and being passed to next process and Internet 260
Buffered data units with sequence number S2 are transferred to next process and Internet 260.
In step S350, renewal arranges windows.In this example, when arrange windows do not have lost data units when, by when
Gap head is updated to the time slot (for example, the minmal sequence number not received) for pointing to corresponding next estimated sequence number.In this example, when weight
When row's window also has lost data units, time slot head is updated to the time slot for pointing to next lost data units.
In step S360, data cell can be stored in buffer.In the figure 2 example, data cell is stored in and reset
In buffer 270, and update and arrange windows.For example, when data cell has more than time slot head but less than the sequence of time slot tail
Number when, the time slot in the arranging windows of corresponding above-mentioned sequence number is updated to buffer status (B).When data cell, which has, to be more than
During the sequence number of gap tail, the new time slot of corresponding above-mentioned sequence number is updated to buffer status (B) and time slot tail is updated to finger
To new time slot.
In step S370, whether protocol layer can determine that data cell independently of one or more lost data units, wherein,
Sequence number of the sequence number of said one or multiple lost data units prior to above-mentioned data cell.For example, work as data cell category
When the agreement of sender is used for using independent data unit, for example, ARP, ICMP, DNS Protocol etc., above-mentioned data cell independently of
Said one or multiple lost data units.In another example, high layer sequence number, for example (example is used when the main body of data cell belongs to
Such as, session sequence number) agreement, for example, TCP, during ensuring sequentially to transmit, data cell can be treated as independently of said one
Or multiple lost data units.When data cell is independently of said one or multiple lost data units, process enters step
S380；Otherwise, process is back to step S310 to receive another data cell.
In step S380, data cell can be transferred to next process and renewal arranges windows.In this example, Data-Link
Data cell is transferred to another process by road floor 250, and the time slot of corresponding data unit is updated into transmission state.Process is returned
Step S310 is back to receive another data cell.
Fig. 4 is the schematic diagram that data cell is reset and transmitted in the LTE protocol stack 440 described according to embodiments of the present invention.
In this example, LTE protocol stack 440 is used in the protocol stack 140 of electronic installation 110.Although using LTE as Fig. 4 example,
The present invention can also be applied to UMTS or other communication technologys.
According to the present invention, LTE protocol stack 440 can include multiple protocol layers, for example, wireless spread-spectrum technology (RLC) layer 441,
PDCP layers 450, Internet protocol (IP) layer 460 (for example, equivalent to third layer development system interconnection mode) etc..It is noticeable
It is that LTE protocol stack 440 can include other layers not shown in Fig. 4, for example, MAC layer below rlc layer 441 etc..
LTE protocol stack 440 can handle the reception data cell sent from relatively low protocol layer to higher protocol level.It is configurable
Header compressed/decompression, data transfer (user platform or control platform), the PDCP sequence numbers that PDCP layers 450 perform IP data are tieed up
Hold, user platform data are tested with encryption/decryption of control platform data, the integrity protection of control platform data and integrality
Card.In embodiment, each data cell can be SDU, MSDU, A-MSDU, MPDU, A-MPDU.In embodiment, by PDCP layers
450 can be described as MPDU (or A-MPDU) from the data cells received of RLC 441, and at the same time, PDCP layers 450 are exported to IP 460
Data cell can be MSDU (or A-MSDU).
Especially, in the example of fig. 4, PDCP layers 450 are configured to receive data cell, perform operation in data cell simultaneously
And reduced data unit is provided to next process (for example, IP layers 460) and is used to further handle.According to the present invention,
The operation performed in PDCP layers 450 can be reordering operations, with according to PDCP sequence number data rearrangement units.According to this hair
Bright, when particular-data unit is independently of one or more lost data units, configuration PDCP layers 450 will be disorderly arranged above-mentioned
Particular-data unit is sent to next process (for example, IP layers 460) in advance.
Especially, in embodiment, one or more of mobile service provider network 101 node, which can be formed, to be had
The data cell of PDCP sequence numbers, and the data cell with PDCP sequence numbers is sent to electronic installation 110.In example
In, 5 data cells respectively with PDCP sequence numbers S1-S5 are formed, and above-mentioned data cell is sent to electronic installation
110.In this example, S1 is positive integer, and S2 is bigger 1, S3 than S1 bigger 1, S4 than S2 bigger 1, S5 than S3 bigger than S4 by 1.First, according to PDCP
Sequence number S1-S2-S3-S4-S5 order sends data cell.However, it lost in initial transmission with sequence number S1's
Data cell, and lost data units can be referred to as.Therefore, electronic installation 110 can connect according to S2-S3-S4-S5 order
Receive data cell.In this example, when detecting above-mentioned lost data units, mobile service provider network 101, which is retransmitted, to be had
Original PDCP sequence numbers S1 data cell.
In embodiment, PDCP layers 450 are can configure according to PDCP layer sequence number, for example data rearrangement units.In this example, PDCP
The reorder buffer 470 that layer 450 is arranged windows using having is with data rearrangement unit.For example, configuration reorder buffer 470 caches
Data cell in disordered state, and configure the sequence number for the trace cache data cell that arranges windows.In this example, reset
Window includes the time slot of corresponding PDCP sequence numbers.Time slot head (H) and time slot tail (T) can be had by arranging windows, wherein, time slot head refers to
To in arranging windows have minmal sequence number time slot, and time slot tail point to arrange windows in have maximum sequence number when
Gap.The time slot that time slot head points to can correspond to next estimated PDCP sequence numbers.The time slot that time slot tail points to can correspond to and receive number
According to the maximum PDCP sequence numbers of unit.
Time slot in arranging windows has three states, for example, idle condition (E), buffer status (B), transmission state
(D), and using above three state recording data cell process is reset.When time slot has idle condition, tool is not received
Have to should time slot sequence number data cell, and the data cell is referred to as lost data units.Delay when time slot has
When depositing state, receive with to should time slot sequence number data cell and be buffered in reorder buffer.At that time
When gap has transmission state, receive with to should time slot sequence number data cell, and be passed to next process,
Such as IP layers 460.
In this example, when PDCP layers 450 receive data cell, by buffering data units in reorder buffer 470, and
And correspondingly renewal arranges windows.In this example, when data cell has more than time slot head but less than the PDCP sequences of time slot tail
Number when, the time slot in the arranging windows of corresponding above-mentioned sequence number is updated using buffer status (B).
When data cell has the sequence number of time slot head, data cell can be transferred to next process, and will reset
The time slot head of window is updated to next time slot.It is worth noting that, when new time slot head is in buffer status, will can have corresponding
The buffered data units of the sequence number of new time slot head are transferred to last layer, and update time slot head again until new time slot head has
Untill idle condition.
When data cell has the PDCP sequence numbers more than time slot tail, the new time slot of corresponding PDCP sequence numbers is updated to
Buffer status (B) and time slot tail is updated to point to new time slot.
Especially, in this example, the data cell with PDCP sequence numbers S3, S4, S5 is independently of with sequence number S1's
Data cell, and the data cell with sequence number S2 is not independently of the data cell with sequence number S1.In this example, have
The main body for having sequence number S1-S5 data cell belongs to using TCP sessions sequence number to ensure the TCP sequentially transmitted.For example, tool
The main body for having sequence number S1 and S2 data cell belongs to the first TCP sessions (TCP#1), the data cell with sequence number S3
Main body belongs to the 2nd TCP sessions (TCP#2), and the main body of the data cell with sequence number S4 and S5 belongs to the 3rd TCP sessions
(TCP#3).Therefore, the data cell of different TCP sessions is independent of one another.
In embodiment, PDCP layers 450 extract high-level protocol information, and are used to reset using the high-level protocol information.
In the example of fig. 4, PDCP layers 450 include TCP sessions tracker 480, for follow the trail of TCP sessions TCP#1, TCP#2 and
TCP#3.In this example, the tracking of TCP sessions tracker 480 is respectively used to the next pre- of TCP sessions TCP#1, TCP#2 and TCP#3
Count TCP session sequence numbers.
In operation, by taking Fig. 4 as an example, the time slot head to arrange windows points to corresponding S1 time slot, to expect having PDCP sequences
Row number S1 data cell., can be by the number with sequence number S2 when PDCP layers 450 receive the data cell with sequence number S2
According to unit caches in reorder buffer 470.PDCP layers 450 are detectable not to receive the data cell with sequence number S1,
Therefore, the data cell with sequence number S1 is lost data units.Further, PDCP layers 450 can determine that with sequence number
S2 data cell is not independently of lost data units.For example, PDCP layers 450 can extract TCP from the data cell with S2
Session (for example, TCP#1) and TCP session sequence numbers.For TCP#1, in TCP sessions sequence number and TCP sessions tracker 480
Next estimated TCP session sequence numbers, therefore, the data cell with S2 are dependent of lost data units.Cause
This, above-mentioned buffering data units is entered in reorder buffer 470 to wait the reception of lost data units.Then, by corresponding S2
Time slot be updated to buffer status, and the time slot tail to arrange windows is pointed to corresponding S2 time slot.
When PDCP layers 450 receive the data cell with sequence number S3, PDCP layers 450 can determine that with PDCP sequence numbers
S3 data cell is independently of lost data units.For example, PDCP layers 450 can extract TCP meetings from the data cell with S3
Talk about (for example, TCP#2) and TCP session sequence numbers.In this example, followed the trail of for TCP#2, TCP sessions sequence number with TCP sessions
TCP session sequence numbers next estimated match in device 480, and therefore, the data cell with S3 is independently of loss data sheet
Member.Then, in the case of without waiting for lost data units are received, PDCP layers 450 can be by the data cell with sequence number S3
It is transferred to next process, such as IP layers 460.Then, corresponding S3 time slot is updated to transmission state, and will arranged windows
Time slot tail points to corresponding S3 time slot.Next TCP sessions tracker 480 or TCP#2 renewals are expected TCP session sequences
Number.
Similarly, when PDCP layers 450 receive the data cell with sequence number S4, PDCP layers 450 can determine that with sequence
Row number S4 data cell is independently of lost data units.For example, PDCP layers 450 can extract from the data cell with S4
TCP sessions (for example, TCP#3) and TCP session sequence numbers.In this example, for TCP#3, TCP sessions sequence number and TCP meetings
TCP session sequence numbers next estimated match in words tracker 480, and therefore, the data cell with S4 is independently of loss
Data cell.Then, in the case of without waiting for lost data units are received, PDCP layers 450 can be by the number with sequence number S4
Next process, such as IP layers 460 are transferred to according to unit.Then, corresponding S4 time slot is updated to transmission state, and will reset
The time slot tail of window points to corresponding S4 time slot.TCP sessions tracker 480 or TCP#3 renewals next estimated TCP sessions
Sequence number.
Similarly, when PDCP layers 450 receive the data cell with sequence number S5, PDCP layers 450 can determine that with sequence
Row number S5 data cell is independently of lost data units.For example, PDCP layers 450 can extract from the data cell with S4
TCP sessions (for example, TCP#3) and TCP session sequence numbers.In this example, for TCP#3, TCP sessions sequence number and TCP meetings
TCP session sequence numbers next estimated match in words tracker 480, and therefore, the data cell with S5 is independently of loss
Data cell.Then, in the case of without waiting for lost data units are received, PDCP layers 450 can be by the number with sequence number S5
Next process, such as IP layers 460 are transferred to according to unit.Then, corresponding S5 time slot is updated to transmission state, and will reset
The time slot tail of window points to corresponding S5 time slot.TCP sessions tracker 480 or TCP#3 renewals next estimated TCP sessions
Sequence number.
In the example of fig. 4, before lost data units are received, by the data cell with PDCP sequence numbers S3, S4, S5
Next process is transferred to, therefore, the method for data cell of the processing with sequence number S3, S4, S5 of the invention can reduce delay.
Fig. 5 is the flow chart that the data cell described according to embodiments of the present invention resets the process 500 with transmitting.In example
In, protocol layer (for example, PDCP layers 450 in LTE protocol stack 440) executive process 500 can be passed through in process circuit 130.Enter
Journey 500 starts from step S501, and enters step S510.
In step S510, data cell is received in protocol layer.In this example, transmission circuit 120 generates electric signal to respond
The electromagnetic wave of antenna trapping, above-said current signal is handled to extract binary stream from electric signal, and according to data unit form
Binary stream is provided to process circuit 130.In this example, MAC layer and the processing data unit of rlc layer 441.Rlc layer 441 is to PDCP
Layer 450 provides reduced data unit.Then, PDCP layers 450 receive above-mentioned data cell.
In step S520, protocol layer can determine that whether data cell arranges in order.In this example, when arranging windows
In, when data cell has the PDCP sequence numbers of time slot head, data cell arranges in order.It is more than when data cell has
During the PDCP sequence numbers of time slot head, data cell does not arrange in order.When data cell arranges in order, process enters step
S530；Otherwise, process enters step S560.
In step S530, data cell is transferred to next process.In this example, PDCP layers 450 transmit data cell
To IP layers 460.In the example of fig. 4, when PDCP layers 450 receive the data cell with PDCP sequence numbers S1, data cell
Arrange in sequence, and data cell is transferred to next process and IP layers 460.
In step S540, the buffered data units with continuous P DCP sequence numbers can be transferred to next process.In example
In, when arrange windows do not have lost data units when, the buffered data units in arranging windows can be transferred to by PDCP layers 450
Next process.In this example, when arranging windows with multiple lost data units, PDCP layers 450 can be transmitted continuously with first
In next lost data units sequence number buffered data units to next process.In the example of fig. 4, have in reception
Before PDCP sequence numbers S1 data cell, data cell of the caching with PDCP sequence numbers S2.There is PDCP sequences when receiving
Number S1 data cell and when being passed to next process and IP floor 460, can be by the caching number with PDCP sequence numbers S2
Next process and IP layers 460 are transferred to according to unit.
In step S550, renewal arranges windows.In this example, when arrange windows do not have lost data units when, by when
Gap head is updated to the time slot for pointing to corresponding next estimated PDCP sequence numbers.In this example, data are lost when arranging windows also to have
During unit, time slot head is updated to the time slot for pointing to next lost data units.In embodiment, based in transmission data cell
TCP message, renewal TCP sessions tracker 480.
In step S560, data cell can be stored in buffer.In the example of fig. 4, data cell is stored in and reset
In buffer 470, and update and arrange windows.For example, when data cell has more than time slot head but less than the PDCP of time slot tail
During sequence number, the time slot in the arranging windows of corresponding above-mentioned PDCP sequence numbers is updated to buffer status (B).When data cell has
When having the PDCP sequence numbers more than time slot tail, by the new time slot of corresponding above-mentioned PDCP sequence numbers be updated to buffer status (B) and
Time slot tail is updated to and points to new time slot.
In step S570, whether protocol layer can determine that data cell independently of one or more lost data units, wherein,
PDCP sequence number of the PDCP sequence numbers of said one or multiple lost data units prior to above-mentioned data cell.For example, PDCP
Layer 450 extracts TCP sessions and TCP session sequence numbers from data cell.When TCP sessions sequence number and TCP session trackers
During next estimated TCP session sequence numbers in 480, data cell is independently of said one or multiple lost data units.Work as number
During according to unit independently of said one or multiple lost data units, process enters step S580；Otherwise, process is back to step
S510 is to receive another data cell.
In step S580, data cell can be transferred to next process and renewal arranges windows.In this example, PDCP layers
Data cell is transferred to another process (for example, IP layers 460) by 450, and the time slot of corresponding data unit is updated into transmission
State.
In step S590, correspondingly, renewal TCP sessions tracker 480.For example, next estimated TCP of renewal TCP sessions
Sequence number.Process is back to step S510 to receive another data cell.
Foregoing description is presented to allow those skilled in the art according to application-specific and the Content Implementation of its needs this hair
It is bright.The various modifications of the embodiment are it will become apparent to those skilled in the art that and can will be defined above
Basic principle is applied to other embodiment.Therefore, the present invention is not limited to described specific embodiment, but meets and exposure
Principle and the consistent widest range of novel feature.In above-mentioned detailed description, in order to provide thorough understanding of the present invention, retouch
Various specific details are stated.However, it will be appreciated by those skilled in the art that the present invention is enforceable.
The above-mentioned embodiment of the present invention can be implemented in various hardware, Software Coding or both combination.Wherein, it is above-mentioned
Hardware can include one or more discrete components, integrated circuit, application specific integrated circuit (ASIC) etc..
In the case where not departing from spirit or essential characteristics of the present invention, the present invention can be implemented in other specific forms.Description
Example is considered as all aspects of explanation and unrestricted.Therefore, the scope of the present invention is indicated by claims, rather than above
Description.Change in all methods and scope equivalent in claim comes under the covering scope of the present invention.
Claims (17)
1. a kind of rearrangement method, comprising：
Data cell is received from wireless network by terminal installation, wherein, the data cell has respective sequence number；
In the protocol layer of protocol stack, the data cell is reset according to the sequence number, for next process；
The dependence of the data cell and one or more lost data units is determined, wherein the one or more loses data
Unit has the sequence number prior to the data cell；And
When the data cell is independently of one or more lost data units, the data sheet of the sequential orders will not be pressed
Member is sent to next process in advance.
2. rearrangement method as claimed in claim 1, it is characterised in that the protocol stack the protocol layer according to the sequence number weight
Arranging the step of data cell is used for next process further includes：
In the packet data convergence protocol of the protocol stack, according to PDCP sequence number, the data cell is reset
For next process.
3. rearrangement method as claimed in claim 2, it is characterised in that determine that the data cell loses number with the one or more
According to unit the dependence the step of further include：
In the packet data convergence protocol, the transmission control protocol for being used for transmission control protocol session in the data cell is extracted
Session sequence number；And
Determine whether the transmission control protocol session sequence number arranges in sequence in the transmission control protocol session.
4. rearrangement method as claimed in claim 3, it is characterised in that further include：
When the transmission control protocol session sequence number arranges in sequence in the transmission control protocol session, this point will not be pressed
The data cell of group data convergence protocol sequential orders is sent to next process in advance.
5. rearrangement method as claimed in claim 1, it is characterised in that the protocol stack the protocol layer according to the sequence number weight
Arranging the step of data cell is used for next process further includes：
In the data link layer of Wi-Fi protocol stacks, according to the sequence number, the data cell is reset for next process.
6. rearrangement method as claimed in claim 5, it is characterised in that determine that the data cell loses number with the one or more
According to unit the dependence the step of further include：
When the data cell belong to address resolution protocol, Internet Control Message Protocol, domain name system agreement it is at least one when, really
The fixed data cell is independently of one or more lost data units.
7. rearrangement method as claimed in claim 5, it is characterised in that determine that the data cell loses number with the one or more
According to unit the dependence the step of further include：
When the data cell belongs to the package stream sequentially transmitted using upper-layer protocol control, determine the data cell independently of this
One or more lost data units.
8. rearrangement method as claimed in claim 7, it is characterised in that controlled when the data cell belongs to using the upper-layer protocol
During the package stream sequentially transmitted, determine that the data cell enters one independently of the step of one or more lost data units
Step includes：
When the main body of the data cell belongs to using additional high layer information to control the transmission control protocol, user that this is sequentially transmitted
During one in datagram protocol, DHCP, determine that the data cell loses number independently of the one or more
According to unit.
9. rearrangement method as claimed in claim 1, it is characterised in that the data cell is data frame, Service Data Unit, Jie
Matter access control Service Data Unit, polymerisation medium access control Service Data Unit, media access control protocol data cell,
At least one of polymerisation medium access-control protocol data cell.
10. a kind of device, comprising：
Receiving circuit, configure to receive wireless signal from wireless network, and in response to the wireless signal, generate data cell,
Wherein, the data cell has respective sequence number；And
Process circuit, configure in the protocol layer of protocol stack, to reset the data cell according to the sequence number and be used for next process；Really
The dependence of the fixed data cell and one or more lost data units, wherein one or more lost data units tools
There is the sequence number prior to the data cell；And when the data cell is independently of one or more lost data units, will
Do not sent in advance to next process by the data cell of the sequential orders.
11. device as claimed in claim 10, it is characterised in that further configure packet of the process circuit in the protocol stack
Convergence protocol layer, according to the sequence number, the data cell is reset for next process.
12. device as claimed in claim 11, it is characterised in that the sequence number is point in the packet data convergence protocol
Group data convergence protocol sequence number, and the process circuit is configured in the packet data convergence protocol, extract the data cell
In be used for transmission control protocol session transmission control protocol session sequence number；And determine the transmission control protocol session sequence
Number whether arranged in sequence in the transmission control protocol session.
13. device as claimed in claim 12, it is characterised in that further include：
When the transmission control protocol session sequence number arranges in sequence in the transmission control protocol session, the processing is configured
Circuit will not sent to next process in advance by the data cell of the PDCP sequential orders.
14. device as claimed in claim 10, it is characterised in that configure Data-Link of the process circuit in Wi-Fi protocol stacks
Road floor, determine the dependence of the data cell and one or more lost data units.
15. device as claimed in claim 14, it is characterised in that controlled when the data cell belongs between address resolution protocol, net
Message protocol processed, domain name system agreement it is at least one when, configure the process circuit and determine the data cell independently of this
Or multiple lost data units.
16. device as claimed in claim 14, it is characterised in that when the data cell belongs to using upper-layer protocol control sequentially
During the package stream of transmission, configure the process circuit and determine the data cell independently of one or more lost data units.
17. device as claimed in claim 16, it is characterised in that when the main body of the data cell belongs to using additional high-rise letter
When breath is to control one in the transmission control protocol, UDP, DHCP that this is sequentially transmitted, match somebody with somebody
Putting the process circuit determines the data cell independently of one or more lost data units.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662372338P | 2016-08-09 | 2016-08-09 | |
| US62/372,338 | 2016-08-09 | ||
| US15/414,368 US20170222943A1 (en) | 2016-01-29 | 2017-01-24 | Method and apparatus for reordering |
| US15/414,368 | 2017-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107707337A true CN107707337A (en) | 2018-02-16 |
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| CN201710219865.0A Withdrawn CN107707337A (en) | 2016-08-09 | 2017-04-06 | Rearrangement method and its device |
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| TW (1) | TWI652953B (en) |
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|---|---|
| TWI652953B (en) | 2019-03-01 |
| TW201806408A (en) | 2018-02-16 |
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Application publication date: 20180216 |