CN103188146A - Sending and receiving method and device of continuous data package - Google Patents

Sending and receiving method and device of continuous data package Download PDF

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Publication number
CN103188146A
CN103188146A CN2011104595046A CN201110459504A CN103188146A CN 103188146 A CN103188146 A CN 103188146A CN 2011104595046 A CN2011104595046 A CN 2011104595046A CN 201110459504 A CN201110459504 A CN 201110459504A CN 103188146 A CN103188146 A CN 103188146A
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Prior art keywords
packet
field
website
mac frame
compression
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CN2011104595046A
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CN103188146B (en
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杨国瑞
张兴新
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201110459504.6A priority Critical patent/CN103188146B/en
Priority to PCT/CN2012/087158 priority patent/WO2013097654A1/en
Publication of CN103188146A publication Critical patent/CN103188146A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • 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
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0079—Formats for control data
    • 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
    • H04L69/04—Protocols for data compression, e.g. ROHC
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention provides a sending and receiving method and a device of a continuous data package. The method for sending the continuous data package comprises the following steps that a first station sends a compressing request to a second station, wherein the compressing request carries flow identification and field information of a medial access control (MAC) frame header of a follow-up data package; a compressing response sent by the second station is received; and a first data package including an integrated MAC frame header or a compressing MAC frame header with flow fields is sent to the second station, wherein the flow fields comprise the flow identification. According to the sending and receiving method and the device of continuous data package, field length of the MAC frame header of the continuous data package can be effectively compressed, unnecessary expenditure of the continuous data package is saved, utilization efficiency of information channel media resources is improved, and energy conservation of sending stations is benefited. In addition, the MAC frame header field with changes can be flexibly processed, and flexibility of using is improved.

Description

A kind of sending, receiving method of continuous data bag and device
Technical field
The present invention relates to the communications field, particularly relate to a kind of method and apparatus of continuous data transfer bag.
Technical background
IEEE 802.11 technology are that a plurality of physical layers (Physical layer is called for short PHY) are formulated a general medium access control preparative layer (Medium access control is called for short MAC) with the construction of standard WLAN (wireless local area network).Wherein the main task of medium access control preparative layer is exactly for setting up addressing and channel access control mechanism with a plurality of websites in the network, making that the communication between the multi-site becomes possibility.
Communication between the website is elementary cell with the packet packet configuration, its described packet packet configuration as shown in Figure 1, wherein Short Training field (Short traning field, be called for short STF) and long training field (Long traning field, be called for short LTF) be the lead code of packet, detection, the automatic gain control (Automatic gain control is called for short AGC) that the former is used for the grouping beginning arranges, initial frequency drift is estimated and initial time is synchronous; The latter is used for channel estimating, accurate Frequency offset estimation and time synchronized.The signaling field is used to indicate the packet rates of packet and length information etc.Service field is used for carrying out synchronously with descrambler, and data field comprises the content of mac frame, and afterbody is used for afterbody with filling and fills.
Mac frame generally comprises three parts, the frame (Frame body) of mac frame head (MAC header), variable-length and Frame Check Sequence (Frame check sequence, FCS is made in letter).Mac frame head field comprises frame control field, duration/id field, address 1 field, address 2 fields, address 3 fields, sequence control field, address 4 fields, QoS (Quality of service successively, meaning is service quality) control field, HT (High Throughput, meaning is high-throughput) control field.In mac frame head field, first three field is the field that all mac frames all can occur, and all the other fields are then determined by the parameter of frame control field.
802.11ah application scenarios in, packet is the parcel of 64～128 bytes mostly, but complete mac frame header will take 36 bytes at most, for a plurality of parcels of continuous transmission, its mac frame header may be just the same, for example address information, QoS information or HT information will cause great waste to media resource.
At this situation, a kind of prior art proposes to adopt the identical mac frame header of traffic identifier (Flow ID) the continuous a plurality of packets of sign, for example address information, QoS information or HT information, in a plurality of packets of transmission continuously, utilizing more, the traffic identifier of short word joint replaces corresponding mac frame header, not only can save the expense to media resource, also help dispatching station point energy-conservation.
Fig. 2 has illustrated the transmission course of continuous data bag of the prior art.At first send website (STA1) and carry out frame head control claim frame (abbreviation HC-REQ with receiving station (STA2), corresponding to Header control request) and frame head control response frame (abbreviation HC-RESP, corresponding to Header control response) exchange, consult continuously the mac frame header sign traffic identifier of bag, described traffic identifier can home address information (Address1/2/3/4), QoS information or HT information etc., and receiving station is preserved the mac frame header of traffic identifier and its sign in local memory cell; Secondly after the negotiation traffic identifier finishes between the website, send website and send the compressed data packets of carrying traffic identifier to receiving station, the compressed format of this packet as shown in Figure 3, receiving station obtains described compressed data packets mac frame header according to traffic identifier from local memory cell; Send website at last and send the use that a tail frame (TAIL frame) announcement finishes traffic identifier.
As shown in Figure 3, the compressed format of continuous data bag, its mac frame head field only comprises frame control information, flow identification information and sequence control information, wherein length (the TBD of traffic identifier, to be defined) less than the length of complete mac frame head field, can effectively save when transmission to the expense of media resource.
Yet, the problem of the prior art mainly contains, the one, the information that the traffic identifier of consulting between the website identifies is all fixed, if occur the situation of information change continuously in the bag, for example the QoS control field of this bag and QoS control field that traffic identifier identifies are not simultaneously, then traffic identifier is unavailable when this bag transmits, and need consult traffic identifier again or send complete data packet format, and the application of traffic identifier lacks flexibility ratio; The 2nd, when finishing the traffic identifier application, need exchange TAIL/ACK frame, will take more channel resource; The 3rd, the length of traffic identifier is to be defined, also has the space of compression mac frame head field.
Summary of the invention
In view of this, for addressing the above problem, the present invention proposes effectively to solve the solution of bag transmission flexibility ratio continuously.
In first aspect, the embodiment of the invention provides a kind of method that sends the continuous data bag.This method comprises: first website sends compression request to second website, and described compression request is carried the field information of the media interviews control mac frame head of traffic identifier and follow-up data bag; Receive the compression response that second website sends; Send first packet that comprises complete mac frame head or comprise the compression mac frame head with stream field to second website, wherein, described stream field comprises traffic identifier.
In second aspect, the invention provides the method that a kind of first website receives the continuous data bag.This method comprises: first website sends to second website and comprises first packet, and described first packet carries complete indication information and/or the first compression negotiation information; Receive the response message that second website feeds back first packet, obtain the second compression negotiation information in the response message.
In the third aspect, the embodiment of the invention provides a kind of website.This website comprises: first transmitting element, send compression request to second website, and described compression request is carried the field information of the media interviews control mac frame head of traffic identifier and follow-up data bag; Receiving element receives the compression response that second website sends; Second transmitting element sends first packet that comprises complete mac frame head or comprise the compression mac frame head with stream field to second website, and wherein, described stream field comprises traffic identifier.
In fourth aspect, the embodiment of the invention provides a kind of website.This website comprises: transmitting element, comprise first packet to the transmission of second website, and described first packet carries complete indication information and/or the first compression negotiation information; Receiving element receives the response message that second website feeds back first packet, obtains the second compression negotiation information in the response message.
Various embodiments of the present invention can effectively be compressed the mac frame head field length of continuous data bag, save the unnecessary expense of continuous data bag, not only improve the channel medium efficiency of resource, also help dispatching station point energy-conservation; Handle the mac frame head field that variation occurs in addition flexibly, improve the flexibility ratio of using.
Description of drawings
Fig. 1 is 802.11 packet packet configuration;
Fig. 2 has illustrated a kind of transmission course of continuous data bag of prior art;
Fig. 3 is the compressed format of prior art continuous data bag;
Fig. 4 has illustrated the services set of WLAN;
Fig. 5 is the transfer process figure according to packet between the website of first embodiment of the invention;
Fig. 6 has illustrated to comprise the data packet format that compresses the mac frame head among the embodiment one;
Fig. 7 is the transmission schematic diagram of the continuous data bag of embodiment one;
Fig. 8 is the transfer process figure according to packet between the website of the embodiment of the invention two;
Fig. 9 has illustrated to comprise the data packet format that compresses the mac frame head among the embodiment two;
Figure 10 is the transmission schematic diagram of the continuous data bag of embodiment two;
Figure 11 is the schematic flow sheet according to the transmission continuous data bag of the embodiment of the invention three;
Figure 12 is the schematic flow sheet according to the reception continuous data bag of the embodiment of the invention three;
Figure 13 has illustrated to comprise the data packet format that compresses the mac frame head among the embodiment three;
Figure 14 is the transmission schematic diagram of continuous data bag among the embodiment three;
Figure 15 is the schematic flow sheet according to the transmission continuous data bag of the embodiment of the invention four;
Figure 16 is the schematic flow sheet according to the reception continuous data bag of the embodiment of the invention four;
Figure 17 has illustrated to comprise the data packet format that compresses the mac frame head among the embodiment four;
Figure 18 is the transmission schematic diagram of continuous data bag among the embodiment four;
Figure 19 is the structural representation according to a kind of website of the embodiment of the invention;
Figure 20 is the structural representation according to a kind of website of the embodiment of the invention.
Embodiment
Fig. 4 has illustrated the various services set of WLAN (wireless local area network) (WLAN:Wireless local area network).Wherein Basic Service Set (BSS:Basic service set) is by within a certain particular coverage, and has certain related site STA and form.BSS2 shown in Figure 4 and BSS3 are such Basic Service Sets.The central location that has full-time administrative BSS in the BSS network is called as access point AP (Access point), and other site STA in this network all is associated with it.A plurality of BSS Netcom crosses distributed system (DS:Distribution system) and interconnects and form extended service set (ESS:Extended service set) at once.Under the situation of AP disappearance, site STA also can ad-hoc network and direct communication mutually, and this network is independent basic service set (IBSS:Independent basic service set), as BSS1.
To be the transmission situation that example is introduced the packet between each website in the various embodiments of the present invention with site STA 1 and STA2 hereinafter.It may be noted that each embodiment not only is equally applicable to the transmission of the packet between other website, be applicable to the transmission of packet between Fig. 4 other types of sites in addition too.
Embodiment one
Present embodiment relates to a kind of transmission method of continuous bag.Indicate this bag whether to transmit, indicate a plurality of mac frame head fields of this bag whether identical with the mac frame head field information that traffic identifier is identified with the traffic identifier compressed format by the stream compressed-bit is set in packet with the stream field, designed a kind of scheme that improves traffic identifier applying flexible degree.
Fig. 5 is the transfer process figure according to packet between the website of the embodiment of the invention one.
As shown in Figure 5, at step S500, send website STA1 and send compression request message to receiving station STA2, described compression request message can be but be not limited to frame head control claim frame (HC-REQ frame), and it carries the identical mac frame head field information of the continuous data bag that label-traffic identifier Flow ID of belonging to the continuous data bag and traffic identifier identify.
Described mac frame head field information can be a kind of in address field information (address 1, address 2, address 3, address 4), QoS control field information or the HT control information or their combination in any.
At step S501, receiving station STA2 receives described compression request message, the local mac frame head field information of preserving its described traffic identifier Flow ID that carries and traffic identifier institute mark, and to sending website STA1 transmission compression response message, the indication traffic identifier is consulted successfully, and described compression response message can be but be not limited to frame head control response frame (HC-RESP frame).
At step S502, send website STA1 and receive described compression response message, the local traffic identifier Flow ID of negotiation and the mac frame head field of traffic identifier institute mark of preserving, the will of failing to be sold at auction negotiation step is finished.
At step S503, send the use that website STA1 determines whether to finish traffic identifier Flow ID, if determine to finish the use of traffic identifier, execution in step S514 then, otherwise execution in step S504.
At step S504, whether the available stream sign replaces the mac frame head field of transmission website STA1 specified data bag, if the replacement of the mac frame head field available stream of specified data bag sign, then execution in step S505; Otherwise execution in step S506;
At step S505, the stream compressed-bit that transmission website STA1 arranges signaling field in the packet is 1, and packet carries and comprises the compression mac frame head that flows field; Described stream field includes traffic identifier.Described stream compressed-bit is the mac frame head that 1 indication notebook data bag comprises compression, is that 0 indication notebook data bag comprises complete mac frame head.
It may be noted that certain indicating bit is that 1 this indicating bit of expression is effective in this manual, indicating bit is that 0 this indicating bit of expression is invalid, unless do special expression in addition.
In an example, described stream field not only contains traffic identifier, and includes a kind of of time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit or HT control field indicating bit or their combination in any.
If (1-1) packets need time domain/id field indication, it is 1 that time domain/id field indicating bit is set, and time domain/id field occurs in compression mac frame head, and corresponding parameter is set; Otherwise it is 0 that time domain/id field indicating bit is set, default time domain/id field in compression mac frame head.
If (1-2) there are address 3 fields in the indication of the frame control field of packet, and address 3 field informations are different with traffic identifier institute marked address 3 field informations, it is 1 that address 3 field indicating bits are set, go out current address 3 fields in compression mac frame head, the indication receiving station obtains address 3 field informations from compression mac frame head; Otherwise it is 0 that address 3 field indicating bits are set, default addresses for use 3 fields in compression mac frame head.
If (1-3) there are address 4 fields in the indication of the frame control field of packet, and address 4 field informations are different with traffic identifier institute marked address 4 field informations, it is 1 that address 4 field indicating bits are set, go out current address 4 fields in compression mac frame head, the indication receiving station obtains address 4 field informations from compression mac frame head; Otherwise it is 0 that address 4 field indicating bits are set, default addresses for use 4 fields in compression mac frame head.
If (1-4) there is the QoS control field in the indication of the frame control field of packet, and QoS control field information is different with the QoS control field information of traffic identifier institute mark, it is 1 that QoS control field indicating bit is set, the QoS control field occurs in compression mac frame head, the indication receiving station obtains QoS control field information from compression mac frame head; Otherwise it is 0 that QoS control field indicating bit is set, default QoS control field in compression mac frame head.
If (1-5) there is the HT control field in the indication of the frame control field of packet, and HT control field information is different with the HT control field information of traffic identifier institute mark, it is 1 that HT control field indicating bit is set, the HT control field occurs in compression mac frame head, the indication receiving station obtains HT control field information from compression mac frame head; Otherwise it is 0 that HT control field indicating bit is set, default HT control field in compression mac frame head.
Fig. 6 has illustrated a kind of data packet format that carries compression mac frame head.Except comprising conventional Short Training field, long training field, service field and afterbody and filling field, packet is introduced the stream compressed-bit in the signaling field.Meanwhile, packet is introduced the stream field in data field, and the stream field comprises traffic identifier, and time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit etc.From Fig. 6 as seen, because there is the QoS control field in the indication of the frame control field of this bag, and the QoS control field is different with the QoS control field information of traffic identifier institute mark, so the QoS control field indicating bit in the stream field is 1, and in compression mac frame head, control, flow (Flow) field, the sequence control field except frame, corresponding QoS control field occurs, compare with complete mac frame head, length is obviously dwindled.
Provided the particular location of stream compressed-bit though it may be noted that Fig. 6, wherein flowed compressed-bit and can be arranged on the other parts that are different from the signaling field, such as frame control field.
At step S506, the stream compressed-bit that transmission website STA1 arranges the signaling field in the packet is 0, and the designation data bag carries complete mac frame head, and packet comprises complete mac frame head.
At step S507, send website STA1 and send packet.
At step S508, receiving station STA2 receives packet.
At step S509, whether the stream compressed-bit of the signaling field in the receiving station STA2 judgment data bag is effective, if the stream compressed-bit of the signaling field in the packet is effective, and execution in step S510 then, otherwise execution in step S511.
At step S510, receiving station STA2 obtains stream field information in the mac frame head field and traffic identifier wherein; According to traffic identifier, from local memory cell, search the default mac frame head field information of this bag.
In addition, according to a kind of of time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit or HT control field indicating bit in the stream field or their combination in any, obtain the complete mac frame head field information of packet.
If (2-1) time domain/id field indicating bit is 1, then time domain/the id field from compression mac frame head is obtained the time domain/id field information of packet, otherwise does not obtain time domain/id field information.
If (2-2) address 3 field indicating bits are 1, then address 3 fields from compression mac frame head are obtained address 3 information of packet; Otherwise obtain address 3 information of packet from local memory cell.
If (2-3) address 4 field indicating bits are 1, then address 4 fields from compression mac frame head are obtained address 4 information of packet; Otherwise obtain address 4 information of packet from local memory cell.
If (2-4) QoS control field indicating bit is 1, the then QoS control information of obtaining packet of the QoS control field from compression mac frame head; Otherwise obtain the QoS control information of packet from local memory cell.
If (2-5) HT control field indicating bit is 1, the then HT control information of obtaining packet of the HT control field from compression mac frame head; Otherwise obtain the HT control information of packet from local memory cell.
By above-mentioned field indicating bit, the embodiment of the invention can be handled the mac frame head field that variation occurs flexibly, improves the flexibility ratio of using.
At step S511, receiving station STA2 obtains the complete mac frame head field information of packet from complete mac frame head.
At step S512, receiving station STA2 is to sending website feedback data packet response message.
At step S513, send the response message that website STA1 receives described packet.
At step S514, send website STA1 and send the stream end to receiving station STA2.
At step S515, receiving station STA2 receives described stream end, deletes the traffic identifier of local memory cell preservation and the mac frame head field information of its sign, and finishes response message to sending website STA1 feedback flow;
At step S516, send website STA1 and receive described stream end response message, delete the traffic identifier of local memory cell preservation and the mac frame head field information of its sign.
Fig. 7 is the schematic diagram of the continuous data bag of embodiment one.As shown in Figure 7, send website STA1 and send the HC-REQ request; Receiving station STA2 responds with HC-RESP, and preserves the mac frame head field information of traffic identifier and its mark.Send website STA1 and send packet DATA1 receiving HC-RESP response hinterland supervention; DATA2 (QoS=1); DATA3.Receiving station STA2 responds with ACK.At last, send website STA1 and send the TAIL frame; Receiving station STA2 responds with ACK, deletes the mac frame head field of traffic identifier and its mark simultaneously.
Embodiment two
Present embodiment relates to a kind of transmission method of continuous bag.By in packet, arrange stream compressed-bit and stream field indicate this bag whether with the transmission of traffic identifier compressed format, indicate a plurality of mac frame head fields of this bag whether identical with the field information that traffic identifier is identified, indicate originally be bundled into the merit end of transmission after traffic identifier whether continue use, designed a kind of scheme that improves traffic identifier applying flexible degree.The place that is different from embodiment one is that embodiment two adopts the stream stop bits in the stream field to replace flowing end frame.
Fig. 8 is the transfer process figure according to packet between the website of the embodiment of the invention two.
As shown in Figure 8, at step S800, send website STA1 and send compression request message to receiving station STA2, described compression request message can be but be not limited to frame head control claim frame (HC-REQ frame), carries the identical mac frame head field information that label-traffic identifier Flow ID of belonging to the continuous data bag and traffic identifier identify the continuous data bag.
Described mac frame head field can be a kind of in address field information (address 1, address 2, address 3, address 4), QoS control field information or the HT information or their combination in any.
At step S801, receiving station STA2 receives described compression request message, local mac frame head field of preserving its traffic identifier that carries and traffic identifier institute mark, and to sending website STA1 feedback compression response message, described compression response message can be but be not limited to frame head control response frame (HC-RESP frame) that the indication traffic identifier is consulted successfully.
At step S802, send website STA1 and receive described compression response message, the local traffic identifier of negotiation and the mac frame head field information of traffic identifier institute mark preserved, the traffic identifier negotiation step is finished.
At step S803, whether the available stream sign replaces the mac frame head field of transmission website STA1 specified data bag; If the mac frame head field available stream of packet sign replaces, execution in step S804 then, otherwise execution in step S805.
At step S804, the stream compressed-bit that transmission website STA1 arranges signaling field in the packet is 1, and packet carries and comprises the compression mac frame head that flows field, and described stream field includes traffic identifier.Described stream compressed-bit is that 1 designation data bag carries and comprises the compression mac frame head that flows field, is that 0 designation data bag comprises complete mac frame head.
In an example, described stream field not only contains traffic identifier, and includes a kind of of time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit or their combining form.
If (3-1) packets need time domain/id field indication, it is 1 that time domain/id field indicating bit is set, and time domain/id field occurs in compression mac frame head, and corresponding parameter is set; Otherwise it is 0 that time domain/id field indicating bit is set, default time domain/id field in compression mac frame head.
If (3-2) there are address 3 fields in the indication of the frame control field of packet, and address 3 field informations are different with traffic identifier institute marked address 3 field informations, it is 1 that address 3 field indicating bits are set, go out current address 3 fields in compression mac frame head, the indication receiving station obtains address 3 field informations from compression mac frame head; Otherwise it is 0 that address 3 field indicating bits are set, default addresses for use 3 fields in compression mac frame head.
If (3-3) there are address 4 fields in the indication of the frame control field of packet, and address 4 field informations are different with traffic identifier institute marked address 4 field informations, it is 1 that address 4 field indicating bits are set, go out current address 4 fields in compression mac frame head, the indication receiving station obtains address 4 field informations from compression mac frame head; Otherwise it is 0 that address 4 field indicating bits are set, default addresses for use 4 fields in compression mac frame head.
If (3-4) there is qos field in the indication of the frame control field of packet, and QoS control field information is different with the QoS control field information of traffic identifier institute mark, it is 1 that QoS control field indicating bit is set, the QoS control field occurs in compression mac frame head, the indication receiving station obtains QoS control field information from compression mac frame head; Otherwise it is 0 that QoS control field indicating bit is set, default QoS control field in compression mac frame head.
If (3-5) there is the HT control field in the indication of the frame control field of packet, and HT control field information is different with the HT control field information of traffic identifier institute mark, it is 1 that HT control field indicating bit is set, the HT control field occurs in compression mac frame head, the indication receiving station obtains HT control field information from compression mac frame head; Otherwise it is 0 that HT control field indicating bit is set, default HT control field in compression mac frame head.
At step S806, send website STA1 specified data and be bundled into whether finish the traffic identifier use after merit is transmitted, traffic identifier use, then execution in step S808 are finished in the back if specified data is bundled into the merit transmission; Otherwise execution in step S807;
At step S807, the stream stop bits (TAIL position) that transmission website STA1 arranges packet is invalid, and the indication receiving station is deleted the traffic identifier of local memory cell preservation and the mac frame head field information of traffic identifier institute mark; Described stream stop bits can be configured in but be not limited to flow field.
At step S808, the stream stop bits (TAIL position) that sends website STA1 setting and packet is effective, and the indication receiving station continues to preserve the traffic identifier of this locality and the mac frame head field information of traffic identifier institute mark.
Fig. 9 has illustrated to compress the data packet format of mac frame head field.Except comprising conventional Short Training field, long training field, service field and afterbody and filling field, packet is introduced the stream compressed-bit in the signaling field.Meanwhile, packet is introduced the stream field in data field, the stream field comprises traffic identifier, and time domain field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit, TAIL indicating bit etc.From Fig. 9 as seen, because there is the QoS control field in the indication of the frame control field of this bag, and the QoS control field is different with the QoS control field information of traffic identifier institute mark, so the QoS control field indicating bit in the stream field is 1, and after the stream field, be right after corresponding QoS control field, compare with complete mac frame head, length is obviously dwindled.
Provided the particular location of stream compressed-bit though it may be noted that Fig. 9, flowed compressed-bit and can be arranged on the other parts that are different from the signaling field, such as frame control field.
At step S805, the stream compressed-bit that transmission website STA1 arranges the signaling field in the packet is 0, and packet carries complete mac frame head.
At step S809, send website STA1 and send packet.
At step S810, receiving station STA2 receives packet.
At step S811, whether the stream compressed-bit of the signaling field in the receiving station STA2 judgment data bag is effective, if the stream compressed-bit of the signaling field in the packet is effective, and execution in step S812 then, otherwise execution in step S813.
At step S812, receiving station STA2 obtains stream field information in the mac frame head field and traffic identifier wherein; According to traffic identifier, from local memory cell, search the complete mac frame head field of packet.
In addition, according to a kind of of the time domain in the mac frame head field/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit or their combination in any, obtain the complete mac frame head field information of this bag.
If (4-1) time domain field indicating bit is 1, then time domain/the id field from compression mac frame head is obtained the time domain/id field information of packet.
If (4-2) address 3 field indicating bits are 1, then address 3 fields from compression mac frame head are obtained address 3 information of packet; Otherwise obtain address 3 information of packet from local memory cell.
If (4-3) address 4 field indicating bits are 1, then address 3 fields from compression mac frame head are obtained address 4 information of packet; Otherwise obtain address 4 information of packet from local memory cell.
If (4-4) QoS control field indicating bit is 1, the then QoS control information of obtaining packet of the QoS control field from compression mac frame head; Otherwise obtain the QoS control information of packet from local memory cell.
If (4-5) HT control field indicating bit is 1, the then HT control information of obtaining packet of the HT control field from compression mac frame head; Otherwise obtain the HT control information of packet from local memory cell.
By above-mentioned field indicating bit, the embodiment of the invention can be handled the mac frame head field that variation occurs flexibly, improves the flexibility ratio of using.
In addition, receiving station STA2 obtains the stream stop bits information of packet, if the stream stop bits is effective, then deletes the traffic identifier of local memory cell preservation and the mac frame head field that traffic identifier indicates; Otherwise continue to preserve the traffic identifier of local memory cell preservation and the mac frame head field of traffic identifier institute mark.
At step S813, receiving station STA2 obtains the complete mac frame head field information of packet from complete mac frame head.
At step S814, the response message of receiving station STA2 feedback data packet.
At step S815, send the response message that website STA1 receives packet, if the stream ending message is effective in the packet, then delete the traffic identifier of local memory cell preservation and the mac frame head field that traffic identifier indicates; The person does not continue to keep the mac frame head field of traffic identifier and the traffic identifier institute mark of local memory cell.
Figure 10 is the schematic diagram of the continuous data bag of embodiment two.As shown in figure 10, send website STA1 and send the HC-REQ request; Receiving station STA2 responds with HC-RESP, and preserves the mac frame head field of traffic identifier and its mark.Send website STA1 and send packet DATA1 (TAIL=0) receiving HC-RESP response hinterland supervention; DATA2 (QoS=1, TAIL=0); DATA3 (TAIL=0).Receiving station STA2 responds with ACK.At last, send website STA1 and send DATA4, wherein TAIL=1; Receiving station STA2 responds with ACK, deletes the mac frame head field information of traffic identifier and its mark simultaneously.
It may be noted that in the description of the relevant embodiment one of preamble and embodiment two the indicated field information of Flow ID remains unchanged at the corresponding continuous data Bao Liuzhong of this sign, still, the indicated field information of Flow ID also is to carry out immediate updating.Step S812 and S815 with embodiment two is that example is illustrated below.
In step S812, (4-2)-(4-5) adjust as follows:
If (5-2) address 3 field indicating bits are 1, then address 3 fields from compression mac frame head are obtained address 3 information of packet, upgrade simultaneously preserve in the local memory cell, traffic identifier institute marked address 3 information; Otherwise obtain address 3 information of packet from local memory cell.
If (5-3) address 4 field indicating bits are 1, then address 4 fields from compression mac frame head are obtained address 4 information of packet, upgrade simultaneously preserve in the local memory cell, traffic identifier institute marked address 4 information; Otherwise from local memory cell obtain packet address 4 information.
If (5-4) QoS control field indicating bit is 1, QoS control information that preserve in the local memory cell, traffic identifier institute mark is upgraded in the then QoS control information of obtaining packet of the QoS control field from compression mac frame head simultaneously; Otherwise obtain the QoS control information of packet from local memory cell.
If (5-5) HT control field indicating bit is 1, the HT control information of preserving in the local memory cell, traffic identifier identifies is upgraded in the then HT control information of obtaining packet of the HT control field from compression mac frame head simultaneously; Otherwise obtain the HT control information of packet from local memory cell.
In step S815, its adjustment is as follows:
Send the response message that website STA1 receives packet, if the stream ending message is effective in the packet, then delete the traffic identifier of local memory cell preservation and the mac frame head field that traffic identifier indicates; Otherwise upgrade the mac frame head field information of local memory cell traffic identifier institute mark according to the field indicating bit that comprises of stream field in the packet:
If (6-1) address 3 field indicating bits are 1 in the stream field, then address 3 fields from compression mac frame head are obtained address 3 information of packet, and upgrade address 3 field informations that traffic identifier institute marked address 3 information are compression mac frame head in the packet; Otherwise keep traffic identifier institute marked address 3 information constant;
If (6-2) address 4 field indicating bits are 1 in the stream field, then address 3 fields from compression mac frame head are obtained address 4 information of packet, and upgrade address 4 field informations that traffic identifier institute marked address 4 information are compression mac frame head in the packet; Otherwise keep traffic identifier institute marked address 4 information constant;
If (6-3) QoS control field indicating bit is 1 in the stream field, the then QoS control information of obtaining packet of the QoS control field from compression mac frame head, and the QoS control information of upgrading traffic identifier institute mark is the QoS control field information of compression mac frame head in the packet; Otherwise keep the QoS control information of traffic identifier institute mark constant;
If (6-4) HT control field indicating bit is 1 in the stream field, the then HT control information of obtaining packet of the HT control field from compression mac frame head, and the HT control information of upgrading traffic identifier institute mark is the HT control field information of compression mac frame head in the packet; Otherwise keep the HT control information of traffic identifier institute mark constant.
Embodiment three
Present embodiment is protected the transmission method of another kind of continuous data bag.Send website and receiving station indicating bit through consultation, determine the transformat of next packet, a kind of scheme of more effectively compressing the mac frame head is provided.
Figure 11 is the schematic flow sheet according to the transmission continuous data bag of the embodiment of the invention three.
As shown in figure 11, flow process is from step S1100.
At step S1101, send website STA1 and be ready for sending packet.
At step S1102, send website STA1 and judge that whether this packet is the first packet that sends in the continuous data bag of receiving station STA2, if then transfer step S1104 to, otherwise transfers step S1103 to.
At step S1103, send website and resolve the previous response message that sends to the packet of accepting website STA2, the compression negotiation position that obtains described respond packet.
At step S1105, send website STA1 and judge whether the compression negotiation position of respond packet of previous packet is effective.If effectively, then transfer step S1107 to, otherwise transfer step S1106 to.
At step S1106, send website STA1 and empty the packed field information of preserving in the local memory cell, transfer step S1104 then to.
At step S1107, it is constant that transmission website STA1 keeps the packed field information of preserving in the local memory cell.
At step S1104, the complete indicating bit that transmission website STA1 arranges packet is 1, and packet comprises complete mac frame head, and described complete indicating bit indication notebook data bag comprises complete mac frame head.
Described compression negotiation position can the signaling field in packet arrange, the perhaps frame control field setting in packet, and its position is not limit.
At step S1108, transmission website STA1 preserves the packed field information in the complete mac frame head in this locality.
At step S1109, the complete indicating bit that transmission website STA1 arranges packet is 0, and packet comprises the mac frame head of compression, and described complete indicating bit indication notebook data bag comprises the mac frame head of compression.
At step S1110, send that the specific fields specific fields whether storage available is preserved replaces in the mac frame head that website STA1 judges next continuous data bag, if can transfer step S1111 to, otherwise transfer step S1112 to.
At step S1111, it is 1 that transmission website STA1 arranges the compression negotiation position, and the next continuous data bag that indication transmission website STA1 sends will comprise the mac frame head of compression.
Described compression negotiation position can the signaling field in packet arrange, perhaps frame control field setting in packet, and its position is not limit.
At step S1112, it is 0 that transmission website STA1 arranges the compression negotiation position, and the next continuous data bag that indication sends website STA1 transmission will comprise complete mac frame head.
At step S1113, send website STA1 and send described packet.
Figure 12 is the schematic flow sheet according to the reception continuous data bag of the embodiment of the invention three.
As shown in the figure, flow process is from step 1200.
At step S1201, receiving station STA2 receives packet.
At step S1202, whether the complete indicating bit in the receiving station STA2 judgment data bag is effective.If effectively, then transfer step S1204 to, otherwise transfer step S1203 to.
At step S1203, receiving station STA2 obtains the complete mac frame head field information of packet from the mac frame head.
At step S1204, accept website STA2 obtains packet from local memory cell mac frame head specific fields information.
At step S1205, whether the compression negotiation position in the receiving station STA2 judgment data bag is effective.If effectively, then transfer step S1206 to, otherwise transfer step S1207 to.
At step S1206, receiving station STA2 determines whether to agree that next packet comprises compression mac frame head.If agree, then transfer step S1208 to, if disagree with then transfer step S1209 to.
At step S1208, receiving station STA2 preserves specific fields information in the mac frame head in local memory cell, and the compression negotiation position that response message is set is 1, and indication receiving station STA2 prepares to receive the packet that comprises compression mac frame head.
At step S1207, receiving station STA2 empties specific fields information in the mac frame head that local memory cell preserves, and the compression negotiation position that response message is set is 0, and indication receiving station STA2 does not receive the packet that comprises compression mac frame head.
At step S1209, receiving station STA2 sends response message.
Figure 13 has illustrated to comprise the data packet format that compresses the mac frame head among the embodiment three.Except comprising conventional Short Training field, long training field, service field and afterbody and filling field, packet is also introduced complete indicating bit and compression negotiation position in the signaling field.Meanwhile, packet is introduced compression mac frame head, frame and FCS in data field, wherein compress the mac frame head and only comprise frame control field and sequence control field.Obviously, this moment packet mac frame head length degree compressed with comparing significantly before.
Figure 14 is the transmission schematic diagram of continuous data bag among the embodiment three.As shown in figure 14, send website STA1 and send complete data packet 1, wherein complete indicating bit is 1, and the compression negotiation position is 0.Receiving station STA2 receives packet 1, responds response message ACK frame, and the compression negotiation position that respond packet is set is 0, and indication does not receive the packet that comprises compression mac frame head.
Send website STA1 and send complete data packet 2, wherein complete indicating bit and compression negotiation position are 1.Receiving station STA2 receives packet 2, responds response message ACK frame, and the compression negotiation position that respond packet is set is 0, and indication does not receive the packet that comprises compression mac frame head.
Send website STA1 and send complete data packet 3, wherein complete indicating bit and compression negotiation position are 1.Receiving station STA2 receives packet 3, responds response message ACK frame, and the compression negotiation position that respond packet is set is 1, and indication receives the packet that comprises compression mac frame head.
Send website STA1 and send compressed data packets 4, wherein complete indicating bit is 0 and the compression negotiation position is 1.Receiving station STA2 receives packet 4, responds response message ACK frame, and the compression negotiation position that respond packet is set is 1, and indication continues to receive the packet that comprises compression mac frame head.
Send website STA1 and send compressed data packets 5, wherein complete indicating bit is 0 and the compression negotiation position is 1.Receiving station STA2 receives packet 5, responds response message ACK frame, and the compression negotiation position that respond packet is set is 1, and indication continues to receive the packet that comprises compression mac frame head.
Send website STA1 and send compressed data packets 6, wherein complete indicating bit and compression negotiation position are 0.Receiving station STA2 receives packet 6, responds with response ACK, and it is 0 that the compression negotiation position is set simultaneously, and indication no longer continues to receive the packet that comprises compression mac frame head.
In the present embodiment, according to effective situation of each indicating bit corresponding field in the mac frame head field of this locality storage is carried out immediate updating (referring to the step S1108 of Figure 11 and the step S1208 of Figure 12).But another feasible scheme is that though each indicating bit is effectively, the mac frame head field of local storage remains unchanged.
Embodiment four
The difference of present embodiment and embodiment three is, comprise in the compression mac frame head at the continuous data bag and to comprise the compression control field, the compression control field includes a kind of of address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit and HT control indicating bit etc. or their combining form, a kind of compression mac frame head is provided, and the scheme of flexible Application.
Figure 15 is the schematic flow sheet that wraps continuously according to the transmission of the embodiment of the invention four.Figure 15 and Figure 11 are basic identical, and therefore identical step adopts identical sequence number to represent.Difference only is step S1507 and step S1509.
At step S1507, owing to the compression compression negotiation position of the response message of judging previous packet at step S1105 is effective, the specific fields information of then preserving in the local memory cell continues to preserve or upgrade.Described update method is, if the field indicating bit is effective in the compression control field of previous packet, then upgrades corresponding field information in storage element.For example in the previous packet, QoS control field indicating bit is 1, then according to the QoS control field information in this packet QoS control field information in the memory cell is upgraded.
At step S 1509, send website STA1 and prepare the packet that includes compression mac frame head that plan sends to receiving station.Described compression mac frame head includes the compression control field, described compression control field includes a plurality of field indicating bits, each concrete field, for example time domain field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit etc. in the indication mac frame head specific fields.
If (12-1) notebook data bag time domain field can not be default, it is 1 that time domain field indicating bit then is set, and the time domain field occurs in compression mac frame head, and the corresponding time is set; Otherwise it is 0 that time domain field indicating bit is set, default time domain field in compression mac frame head.
If (12-2) there are address 3 fields in this bag of frame control indication in the notebook data bag, and address 3 field informations in that address 3 field informations are preserved with local memory cell, the specific fields are different, it is 1 that address 3 field indicating bits are set, go out current address 3 fields in compression mac frame head, the indication receiving station obtains address 3 field informations from the compression mac frame head of notebook data bag; Otherwise it is 0 that address 3 field indicating bits are set, default addresses for use 3 fields in compression mac frame head.
If (12-3) there are address 4 fields in this bag of frame control indication in the notebook data bag, and address 4 field informations in that address 4 field informations are preserved with local memory cell, the specific fields are different, it is 1 that address 4 field indicating bits are set, go out current address 4 fields in compression mac frame head, the indication receiving station obtains address 4 field informations from the compression mac frame head of notebook data bag; Otherwise it is 0 that address 4 field indicating bits are set, default addresses for use 4 fields in M compression AC frame head.
If (12-4) there is the QoS control field in this bag of frame control indication in the notebook data bag, and the QoS control field information in that QoS control field information is preserved with local memory cell, the specific fields is different, it is 1 that QoS control field indicating bit is set, the QoS control field occurs in compression mac frame head, the indication receiving station obtains QoS control field information from the compression mac frame head of notebook data bag; Otherwise it is 0 that QoS control field indicating bit is set, default QoS control field in compression mac frame head.
If (12-5) there is the HT control field in this bag of frame control indication in the notebook data bag, and the HT control field information in that HT control field information is preserved with local memory cell, the specific fields is different, it is 1 that HT control field indicating bit is set, the HT control field occurs in compression mac frame head, the indication receiving station obtains HT control field information from the compression mac frame head of notebook data bag; Otherwise it is 0 that HT control field indicating bit is set, default HT control field in mac frame head field.
Figure 16 is the schematic flow sheet according to the reception continuous data bag of the embodiment of the invention four.Figure 16 and Figure 12 are basic identical, and therefore identical step adopts identical sequence number to represent.The difference of Figure 16 and Figure 12 only is step 1603 and step 1608, namely how to obtain the specific fields information in the field information and local memory cell in the mac frame head of the packet that comprises compression mac frame head.
In step 1603, because the complete indicating bit of signaling field in the packet is 0, then receiving station STA1 obtains field information the mac frame head of this packet from compression mac frame head or local memory cell.
If (13-1) time domain field indicating bit is 1 in the compression control field, then from compression mac frame head, obtain the time domain field information.
If (13-2) address 3 field indicating bits are 1 in the compression control field, then address 3 fields from compression mac frame head are obtained address 3 information of notebook data bag; Otherwise obtain address 3 information of notebook data bag from local memory cell.
If (13-3) address 4 field indicating bits are 1 in the compression control field, then address 4 fields from compression mac frame head are obtained address 4 information of notebook data bag; Otherwise local memory cell obtains address 4 information of notebook data bag.
If (13-4) QoS control field indicating bit is 1 in the compression control field, the then QoS control information of obtaining the notebook data bag of the QoS control field from compression mac frame head; Otherwise local memory cell is obtained the QoS control information of this bag.
If (13-5) HT control field indicating bit is 1 in the compression control field, the then HT control information of obtaining the notebook data bag of the HT control field from compression mac frame head; Otherwise local memory cell is obtained the HT control information that traffic identifier identifies.
In step 1608, because step S1206, receiving station STA1 agree to send website STA2 next packet is comprised compression mac frame head, and then receiving station STA1 is local preserves or upgrade specific fields information in the mac frame head, and the compression negotiation position that respond packet is set is 1.If complete indicating bit is effective, then sets up memory cell, and preserve the specific fields information in the complete mac frame head; If complete indicating bit is invalid, if then in the compression control field of notebook data bag the field indicating bit effective, then in storage element, upgrade corresponding field information, otherwise do not upgrade.For example in the notebook data bag, QoS control field indicating bit is 1, then according to the QoS control field information in this packet compression mac frame head QoS control field information in the memory cell is upgraded.HT control field indicating bit is 0, and then the HT control field information in the memory cell is not upgraded.
Figure 17 has illustrated to comprise the data packet format that compresses the mac frame head among the embodiment four.As shown in figure 14, except comprising conventional Short Training field, long training field, service field and afterbody and filling field, packet is also introduced complete indicating bit and compression negotiation position in the signaling field.Meanwhile, packet is introduced compression mac frame head, frame and FCS in data field, wherein said compression mac frame head comprises frame control, compression control, sequence control and QoS control, because the QoS control field indicating bit in the compression control field is 1, so in compression mac frame head, the QoS control field occurs; Obviously, mac frame head field length is compressed with comparing before to obtain showing.
Figure 18 is the transmission schematic diagram that wraps continuously among the embodiment four.Figure 18 and Figure 14 are basic identical, and difference is that in Figure 18 in the compressed data packets 5 that sends website STA1 transmission, the QoS control field indicating bit that comprises in the compression control field is 1, shows in this compression mac frame head to comprise the QoS control field.
Figure 19 is the structural representation according to a kind of website of the embodiment of the invention.As shown in figure 19, website 1900 comprises: first transmitting element 1910, send compression request to second website, and described compression request is carried the field information of the media interviews control mac frame head of traffic identifier and follow-up data bag; Receiving element 1920 receives the compression response that second website sends; Second transmitting element 1930 sends first packet that comprises complete mac frame head or comprise the compression mac frame head with stream field to second website, and wherein, described stream field comprises traffic identifier.
Preferably, carry the stream indication information in first packet, described stream indication information is configured in signaling field or the frame control field; It is complete mac frame head packet or the packet that comprises the compression mac frame head that flows field that described stream indication information is indicated first packet.
Preferably, described stream field also comprises: one or more in time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, the HT control field indicating bit; Described time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit indicate whether comprise corresponding field in its place first packet respectively.
Preferably, described website comprises updating block, is used for one or more according to address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit, upgrades local corresponding field information of preserving.
Preferably, described stream field comprises the stream stop bits; Described stream stop bits is used to indicate the use that whether finishes traffic identifier.
Preferably, field information is a kind of of address 3 fields, address 4 fields, QoS control field or HT control field or their combination in any.
Figure 20 is the structural representation according to a kind of website of the embodiment of the invention.As shown in figure 20, website 2000 comprises: transmitting element 2010, comprise first packet to the transmission of second website, and described first packet carries complete indication information and/or first compression negotiation letter; Receiving element 2010 receives the response message that second website feeds back first packet, obtains the second compression negotiation information in the response message.
Preferably, described complete indication information indicates first packet whether to carry complete mac frame head, and when complete indication information was effective, described first packet carried complete mac frame head; Described complete indication information is configured in signaling field or the frame control field of first packet.
Preferably, the described first compression negotiation information indicates whether second website is sent second packet that is right after first packet and comprises compression mac frame head; The described first compression negotiation information configuration is at signaling field or the frame control field of first packet.
Preferably, described website comprises: judging unit, before sending first packet to second website, judge whether first packet is to send to second website and is continuously first packet in the bag; The unit is set, is to send to second website and is continuously that the complete indication information that first packet is set is effective under the situation of the first bag in the bag at first packet.
Preferably, website comprises: judging unit, be to send to second website and be not continuously under the situation of the first bag in the bag at first packet, judge whether the second compression negotiation message of response message of the 3rd packet that sent to second website before sending first packet is effective; The unit is set, and under the effective situation of the described second compression negotiation message, the complete indication information that first packet is set is invalid; Under the invalid situation of the described second compression negotiation message, the complete indication information that first packet is set is effective.Further preferably, website comprises memory cell, under the effective situation of the described second compression negotiation message, keeps that local to preserve packed field in the mac frame head constant or upgraded.
Preferably, under the invalid situation of the complete indication information that first packet is set, first transmission package configuration compression mac frame head; Described compression mac frame head comprises frame control field and sequence control field, perhaps frame control field, compression control field and sequence control field.Further preferably, described compression control field comprises a kind of of time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit or HT control field indicating bit or their combination in any.
Further preferably, arranging under the effective situation of complete indication information of first packet, first transmission package disposes complete mac frame head.
Preferably, described website comprises: memory cell, and the local field information of preserving in the mac frame head, described field information is a kind of of address 3 fields, address 4 fields, QoS control field or HT control field or their combination in any.
Preferably, described website comprises: judging unit, judge the field information field information replacement whether the mac frame head is preserved in available this locality of the mac frame head of second packet that sends to second website and closely follow first packet; The unit is set, and under the situation of the field information replacement that the field information of described second packet can be preserved with this locality, the compression negotiation message that first packet is set is effective; Under the situation that the unavailable local field information of preserving of the field information of described second packet replaces, the compression negotiation message that first packet is set is invalid.
Though preamble combines various indicating bits various embodiments of the present invention have been done detailed description, those skilled in the art understands these indicating bits and can be replaced by the indication information of other form.
Those skilled in the art should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for using distinct methods to realize described function to each, but this realization should not thought and exceeds scope of the present invention.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement etc., all should be included within protection scope of the present invention.

Claims (34)

1. method that sends packet comprises:
First website sends compression request to second website, and described compression request is carried the field information of the media interviews control mac frame head of traffic identifier and follow-up data bag;
Receive the compression response that second website sends;
Send first packet that comprises complete mac frame head or comprise the compression mac frame head with stream field to second website, wherein, described stream field comprises traffic identifier.
2. the method for claim 1 comprises:
Carry the stream indication information in first packet, described stream indication information is configured in signaling field or the frame control field;
It is complete mac frame head packet or the packet that comprises the compression mac frame head that flows field that described stream indication information is indicated first packet.
3. the method for claim 1, described stream field also comprises:
One or more in time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, the HT control field indicating bit;
Described time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit indicate whether comprise corresponding field in its place first packet respectively.
4. method as claimed in claim 3, wherein one or more according in address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, the HT control field indicating bit upgrade local corresponding field information of preserving.
5. the method for claim 1 comprises:
Described stream field comprises the stream stop bits; Described stream stop bits is used to indicate the use that whether finishes traffic identifier.
6. the method for claim 1, wherein field information is a kind of of address 3 fields, address 4 fields, QoS control field or HT control field or their combination in any.
7. method that sends packet comprises:
First website sends to second website and comprises first packet, and described first packet carries complete indication information and/or the first compression negotiation information;
Receive the response message that second website feeds back first packet, obtain the second compression negotiation information in the response message.
8. method as claimed in claim 7 comprises:
Described complete indication information indicates first packet whether to carry complete mac frame head, and when complete indication information was effective, described first packet carried complete mac frame head;
Described complete indication information is configured in signaling field or the frame control field of first packet.
9. method as claimed in claim 7 comprises:
The described first compression negotiation information indicates whether second website is sent second packet that is right after first packet and comprises compression mac frame head;
The described first compression negotiation information configuration is at signaling field or the frame control field of first packet.
10. as the described method of one of claim 7-9, comprising:
Before sending first packet to second website, judge whether first packet is to send to second website and is continuously first packet in the bag; Be to send to second website and be continuously that the complete indication information that first packet is set is effective under the situation of the first bag in the bag at first packet.
11. as the described method of one of claim 7-9, comprising:
Be to send to second website and be not continuously under the situation of the first bag in the bag at first packet, judge whether the second compression negotiation message of response message of the 3rd packet that sent to second website before sending first packet is effective;
Under the effective situation of the described second compression negotiation message, the complete indication information that first packet is set is invalid;
Under the invalid situation of the described second compression negotiation message, the complete indication information that first packet is set is effective.
12. as the described method of one of claim 7-9, comprising under the effective situation of the described second compression negotiation message, keep that local to preserve packed field in the mac frame head constant or upgraded.
13. method as claimed in claim 11 comprises:
Under the invalid situation of the complete indication information that first packet is set, first transmission package configuration compression mac frame head; Described compression mac frame head comprises frame control field and sequence control field, perhaps frame control field, compression control field and sequence control field.
14. method as claimed in claim 13 comprises:
Described compression control field comprises a kind of of time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit or HT control field indicating bit or their combination in any.
15. as claim 10 or 11 described methods, comprising:
Arranging under the effective situation of complete indication information of first packet, first transmission package disposes complete mac frame head.
16. method as claimed in claim 15 comprises:
The local field information of preserving in the mac frame head, described field information is a kind of of address 3 fields, address 4 fields, QoS control field or HT control field or their combination in any.
17. method as claimed in claim 7 comprises:
Judge the field information field information replacement whether the mac frame head is preserved in available this locality of the mac frame head of second packet that sends to second website and closely follow first packet;
Under the situation of the field information replacement that the field information of described second packet can be preserved with this locality, the compression negotiation message that first packet is set is effective;
Under the situation that the unavailable local field information of preserving of the field information of described second packet replaces, the compression negotiation message that first packet is set is invalid.
18. a website comprises:
First transmitting element sends compression request to second website, and described compression request is carried the field information of the media interviews control mac frame head of traffic identifier and follow-up data bag;
Receiving element receives the compression response that second website sends;
Second transmitting element sends first packet that comprises complete mac frame head or comprise the compression mac frame head with stream field to second website, and wherein, described stream field comprises traffic identifier.
19. website as claimed in claim 18, wherein:
Carry the stream indication information in first packet, described stream indication information is configured in signaling field or the frame control field;
It is complete mac frame head packet or the packet that comprises the compression mac frame head that flows field that described stream indication information is indicated first packet.
20. website as claimed in claim 18, described stream field also comprises:
One or more in time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, the HT control field indicating bit;
Described time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit indicate whether comprise corresponding field in its place first packet respectively.
21. as the described website of one of claim 18-20, comprising updating block, be used for one or more according to address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit, HT control field indicating bit, upgrade local corresponding field information of preserving.
22. website as claimed in claim 18, wherein:
Described stream field comprises the stream stop bits; Described stream stop bits is used to indicate the use that whether finishes traffic identifier.
23. website as claimed in claim 18, wherein field information is a kind of of address 3 fields, address 4 fields, QoS control field or HT control field or their combination in any.
24. a website comprises:
Transmitting element comprises first packet to the transmission of second website, and described first packet carries complete indication information and/or the first compression negotiation information;
Receiving element receives the response message that second website feeds back first packet, obtains the second compression negotiation information in the response message.
25. website as claimed in claim 24, wherein:
Described complete indication information indicates first packet whether to carry complete mac frame head, and when complete indication information was effective, described first packet carried complete mac frame head;
Described complete indication information is configured in signaling field or the frame control field of first packet.
26. website as claimed in claim 24, wherein:
The described first compression negotiation information indicates whether second website is sent second packet that is right after first packet and comprises compression mac frame head;
The described first compression negotiation information configuration is at signaling field or the frame control field of first packet.
27. as the described website of one of claim 24-26, comprising:
Judging unit before sending first packet to second website, judges whether first packet is to send to second website and is continuously first packet in the bag;
The unit is set, is to send to second website and is continuously that the complete indication information that first packet is set is effective under the situation of the first bag in the bag at first packet.
28. as the described website of one of claim 24-26, comprising:
Judging unit is to send to second website and is not continuously under the situation of the first bag in the bag at first packet, judges whether the second compression negotiation message of response message of the 3rd packet that sent to second website before sending first packet is effective;
The unit is set, and under the effective situation of the described second compression negotiation message, the complete indication information that first packet is set is invalid; Under the invalid situation of the described second compression negotiation message, the complete indication information that first packet is set is effective.
29. website as claimed in claim 28 comprising memory cell, under the effective situation of the described second compression negotiation message, keeps that local to preserve packed field in the mac frame head constant or upgraded.
30. website as claimed in claim 28 comprises:
Under the invalid situation of the complete indication information that first packet is set, first transmission package configuration compression mac frame head; Described compression mac frame head comprises frame control field and sequence control field, perhaps frame control field, compression control field and sequence control field.
31. website as claimed in claim 30 comprises:
Described compression control field comprises a kind of of time domain/id field indicating bit, address 3 field indicating bits, address 4 field indicating bits, QoS control field indicating bit or HT control field indicating bit or their combination in any.
32. as claim 28 or 29 described websites, comprising:
Arranging under the effective situation of complete indication information of first packet, first transmission package disposes complete mac frame head.
33. website as claimed in claim 24 comprises:
Memory cell, the local field information of preserving in the mac frame head, described field information is a kind of of address 3 fields, address 4 fields, QoS control field or HT control field or their combination in any.
34. website as claimed in claim 24 comprises:
Judging unit is judged the field information field information replacement whether the mac frame head is preserved in available this locality of the mac frame head of second packet that sends to second website and closely follow first packet;
The unit is set, and under the situation of the field information replacement that the field information of described second packet can be preserved with this locality, the compression negotiation message that first packet is set is effective; Under the situation that the unavailable local field information of preserving of the field information of described second packet replaces, the compression negotiation message that first packet is set is invalid.
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