CN105450330A - Uplink transmission method, station, communication system, and management real object - Google Patents

Uplink transmission method, station, communication system, and management real object Download PDF

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Publication number
CN105450330A
CN105450330A CN201410268034.9A CN201410268034A CN105450330A CN 105450330 A CN105450330 A CN 105450330A CN 201410268034 A CN201410268034 A CN 201410268034A CN 105450330 A CN105450330 A CN 105450330A
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uplink frame
sta
rut
indication information
management entity
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CN105450330B (en
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杜振国
丁志明
树贵明
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The invention provides an uplink transmission method, a station, a communication system, and a management real object. The method comprises a step that a station STA generates an uplink frame which comprises RUT (robust uplink transmission) indication information. When the value of the RUT indication information is a first value, it indicates that an associated access point A-AP associated with the station STA and a coordinative access point C-AP in coordinative relation with the associated access point A-AP receive the uplink frame and carry out the RUT processing of the uplink frame; when the value of the RUT indication information is a second value, it just indicates that the associated access point A-AP associated with the station STA receives the uplink frame and carries out the non-RUT processing of the uplink frame. The method also comprises a step that the station STA transmits the uplink frame.

Description

A kind of ascending transmission method, website, communication system and management entity
Technical field
The present invention relates to communication technical field, particularly relate to a kind of ascending transmission method, website, communication system and management entity.
Background technology
Along with WLAN (WirelessLocalAreaNetworks; WLAN (wireless local area network)) evolution of standard, current IEEE (InstituteofElectricalandElectronicsEngineers; Institute of Electrical and Electric Engineers) 802.11 working groups have started WiFi (WirelessFidelity of future generation; Wireless Fidelity) standard research and formulate work.WiFi standard of future generation is called for short HEW (HighEfficiencyWLAN; Efficient WLAN (wireless local area network)), target is that power system capacity is risen to more than 10Gbps, the scene of special concern Working level WiFi (Carrier-gradeWiFi) and high density WiFi.
So-called Working level WiFi, refers to the situation that WiFi network is disposed by operator or enterprise.The former major deployments, in outdoor, covers to realize hot spot region; The latter is deployed in enterprises.High density WiFi comprises two kinds of situations, i.e. high density AP (AccessPoint; Access point) and high density STA (Station; Website).The former refers to that AP exists in a large number in certain area, is usually disposed by operator or enterprise, certainly also comprises the situation that residential subscribers individual disposes; Latter is in hot spot region due to crowded, the very high density of WiFi mobile terminal device distribution.
In the prior art, when STA carries out uplink, the A-AP (AssociationAP only associated with it; Association access point) can uplink frame be received and uplink frame is processed, and judge whether this uplink frame receives successfully.
But, outdoor wireless signal environment is changeable, WiFi equipment dense distribution causes strong equipment room interference, significantly reduce WiFi equipment transmission performance, particularly outdoor uplink will be had a strong impact on, utilize method of the prior art, the reliability of transmitting uplink data is lower, so method of the prior art cannot ensure upstream performance; Further, also increase retransmission probability, reduce uplink efficiency.
Summary of the invention
The invention provides a kind of ascending transmission method, website, communication system and management entity, in order to improve upstream performance.
First aspect present invention provides a kind of ascending transmission method, comprising:
Site STA generates uplink frame, described uplink frame comprises robust uplink RUT indication information, described RUT indication information represents the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with described A-AP when getting the first value, and does RUT process to described uplink frame; Described RUT indication information represents when getting the second value that the association access point A-AP only associated with described STA receives described uplink frame and does non-RUT process to described uplink frame;
Described STA sends described uplink frame.
In conjunction with first aspect, in the first possible implementation of first aspect, before described STA generates described uplink frame, described method also comprises:
Described STA obtains the probability that the uplink frame before described uplink frame is correctly received by described A-AP, and when described probability is greater than first threshold, described RUT indication information is set to described second value by described STA; And/or
Described STA obtains the probability that the uplink frame before described uplink frame is correctly received by described A-AP, and when described probability is less than Second Threshold, described RUT indication information is set to described first value by described STA.
In conjunction with first aspect, in the implementation that the second of first aspect is possible, before described STA generates described uplink frame, described method also comprises:
Described STA receives the indication information that described A-AP sends, and described indication information is used to indicate described STA and whether opens RUT transmission mode; Described RUT indication information is at least set to described first value or described second value according to described indication information by described STA.
In conjunction with the implementation that the second of first aspect is possible, in the third possible implementation of first aspect, described indication information is arranged in physics head targeting sequencing or the media access control MAC head of the downlink frame that described A-AP sends to described STA.
In conjunction with the implementation that the second of first aspect is possible, in the 4th kind of possible implementation of first aspect, described RUT indication information and described indication information utilize the identical indicating bit in the physics head targeting sequencing of transmission frame to represent.
In conjunction with the possible implementation of the second of first aspect or first aspect to any one in the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, described RUT indication information is arranged in the physics head targeting sequencing of described uplink frame.
In conjunction with the possible implementation of the second of first aspect or first aspect to any one in the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect, described STA, described A-AP and described C-AP are managed by same management entity; Described A-AP is associated with described STA, and described C-AP is not associated with described STA.
In conjunction with the possible implementation of the second of first aspect or first aspect to any one in the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation of first aspect, before described STA sends described uplink frame, described method also comprises: described STA sends the request message for setting up robust uplink RUT to described A-AP; Described STA receives the response message that described A-AP sends.
In conjunction with the 7th kind of possible implementation of first aspect, in the 8th kind of possible implementation of first aspect, when described response message indicates described RUT immediately built, in described response message, comprise the first multicast address; Described first multicast address is the destination address of described uplink frame, and described first multicast address is used for: by described first multicast address, described C-AP can determine whether described STA is validated user.
In conjunction with the possible implementation of the second of first aspect or first aspect to any one in the 7th kind of possible implementation of first aspect, in the 9th kind of possible implementation of first aspect, the source address of described uplink frame is the MAC address of described STA, and destination address is MAC address or first multicast address of described A-AP; Described first multicast address is used for: by described first multicast address, described C-AP can determine whether described STA is validated user.
In conjunction with the possible implementation of the second of first aspect or first aspect to any one in the 7th kind of possible implementation of first aspect, in the tenth kind of possible implementation of first aspect, described uplink frame comprises the identification information of the management entity belonging to described A-AP.
Second aspect present invention provides a kind of ascending transmission method, comprising:
The uplink frame that access point AP receiving station STA sends, comprises robust uplink RUT indication information in described uplink frame;
When described RUT indication information gets the first value, described AP carries out RUT process to described uplink frame; Wherein, described AP comprises the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation with described A-AP.
In conjunction with second aspect, in the first possible implementation of second aspect, when described RUT indication information gets the first value, before described AP carries out RUT process to described uplink frame, described method also comprises:
Described C-AP determines that the source address of carrying in described uplink frame or destination address are present in the cooperation list of described C-AP; Or
Described C-AP determines that the mark of the mark of the management entity that described uplink frame is carried and the management entity belonging to described C-AP matches.
In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second of second aspect is possible, described AP carries out RUT process to described uplink frame, specifically comprises:
Described A-AP and described C-AP judges whether described uplink frame receives successfully; If receive successfully, described uplink frame is transmitted to the management entity belonging to described A-AP and described C-AP by described A-AP or described C-AP.
In conjunction with the first possible implementation of second aspect or second aspect, in the third possible implementation of second aspect, when described uplink frame comprises multiple burst, described AP carries out RUT process to described uplink frame, specifically comprises:
Described multiple burst is transmitted to the management entity belonging to described A-AP and described C-AP by described A-AP and described C-AP; Or
Described A-AP and described C-AP verifies described multiple burst;
The correct burst of verification is transmitted to the management entity belonging to described A-AP and described C-AP by described A-AP and described C-AP.
In conjunction with the first possible implementation of second aspect or second aspect, in the 4th kind of possible implementation of second aspect, described AP carries out RUT process to described uplink frame, specifically comprises:
The received signal strength indicator RSSI of described A-AP and described C-AP by the uplink frame of not decoding and when receiving described uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to the management entity belonging to described A-AP and described C-AP; Wherein, described uplink frame of not decoding is the described uplink frame value before channel decoding that described A-AP and described C-AP receive.
In conjunction with the first possible implementation of second aspect or second aspect to any one in the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation of second aspect, before the uplink frame that described access point AP receiving station STA sends, described method also comprises:
Described A-AP receives the request message for setting up robust uplink RUT that described STA sends;
Described A-AP sends cooperation request message to described C-AP;
Described A-AP receives the cooperation response message that described C-AP sends;
Described A-AP sends response message to described STA.
In conjunction with the 5th kind of possible implementation of second aspect, in the 6th kind of possible implementation of second aspect, in described cooperation request message, comprise the first multicast address, the MAC address of described STA or the MAC address of described A-AP; Described first multicast address is specially the destination address of described uplink frame.
In conjunction with the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation of second aspect, described method also comprises:
The MAC Address of described first multicast address, described STA or the MAC Address of described A-AP are recorded in cooperation list by described C-AP.
In conjunction with the first possible implementation of second aspect or second aspect to any one in the 5th kind of possible implementation of second aspect, in the 8th kind of possible implementation of second aspect, described method also comprises:
The MAC address of described A-AP is recorded in cooperation list by described C-AP.
In conjunction with the first possible implementation of second aspect or second aspect to any one in the 8th kind of possible implementation of second aspect, in the 9th kind of possible implementation of second aspect, after described AP carries out RUT process to described uplink frame, described method also comprises:
Described A-AP sends the acknowledge message being used to indicate described uplink frame and being correctly received after short interFrameGap SIFS to described STA; Or
A-AP and/or C-AP of the described uplink frame of all correct receptions sends to described STA the acknowledge message being used to indicate described uplink frame and being correctly received after short interFrameGap SIFS simultaneously; Or
Described A-AP and/or described C-AP sends the acknowledge message being used to indicate described uplink frame and being correctly received after obtaining media delivery chance to described STA.
Third aspect present invention provides a kind of ascending transmission method, comprising:
Management entity receives at least one duplicate of the uplink frame from site STA that association access point A-AP and/or cooperation access point C-AP forwards; Described A-AP is the access point associated with described STA, described C-AP is the access point having cooperation relation with described A-AP, robust uplink RUT indication information is comprised in described uplink frame, and described RUT indication information is the first value, described RUT indication information represents the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with described A-AP when getting the first value, and does RUT process to described uplink frame;
Described management entity at least one duplicate to described uplink frame carries out merging treatment.
In conjunction with the third aspect, in the first possible implementation of the third aspect, described management entity at least one duplicate to described uplink frame carries out merging treatment, specifically comprises:
When at least one duplicate described be decoded media access control MAC layer data and containing many bursts time, the correct arbitrary duplicate of described management entity selection check is as merging frame; Or
When described uplink frame comprises multiple burst, the multiple burst duplicates of described management entity to each burst verify respectively, using the amalgamation result of burst duplicate correct for verification as described each burst; Or
When at least one duplicate described is when not carrying out the duplicate of channel-decoding, described management entity processes according to ad hoc rules by turn at least one duplicate described, obtains and merges frame.
Fourth aspect present invention provides a kind of site STA, it is characterized in that, comprising:
Processing unit, for generating uplink frame, described uplink frame comprises robust uplink RUT indication information, described RUT indication information represents the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with described A-AP when getting the first value, and does RUT process to described uplink frame; Described RUT indication information represents when getting the second value that the association access point A-AP only associated with described STA receives described uplink frame and does non-RUT process to described uplink frame;
First transmitting element, for sending described uplink frame.
In conjunction with fourth aspect, in the first possible implementation of fourth aspect,
Described RUT indication information, also for the probability that the uplink frame obtained before described uplink frame is correctly received by described A-AP, when described probability is greater than first threshold, is set to described second value by described processing unit; And/or
Described RUT indication information, also for the probability that the uplink frame obtained before described uplink frame is correctly received by described A-AP, when described probability is less than Second Threshold, is set to described first value by described processing unit.
In conjunction with fourth aspect, in the implementation that the second of fourth aspect is possible, described STA also comprises the first receiving element,
The indication information that described first receiving element sends for receiving described A-AP; Described indication information is used to indicate described STA and whether opens RUT transmission mode;
Described processing unit is also for being at least set to described first value or described second value according to described indication information by described RUT indication information.
In conjunction with the implementation that the second of fourth aspect is possible, in the third possible implementation of fourth aspect, described indication information is arranged in physics head targeting sequencing or the media access control MAC head of the downlink frame that described A-AP sends to described STA.
In conjunction with the implementation that the second of fourth aspect is possible, in the 4th kind of possible implementation of fourth aspect, described RUT indication information and described indication information utilize the identical indicating bit in the physics head targeting sequencing of transmission frame to represent.
In conjunction with the possible implementation of the second of fourth aspect or fourth aspect to any one in the 4th kind of possible implementation of fourth aspect, in the 5th kind of possible implementation of fourth aspect, described RUT indication information is arranged in the physics head targeting sequencing of described uplink frame.
In conjunction with the possible implementation of the second of fourth aspect or fourth aspect to any one in the 5th kind of possible implementation of fourth aspect, in the 6th kind of possible implementation of fourth aspect, described STA, described A-AP and described C-AP are managed by same management entity; Described A-AP is associated with described STA, and described C-AP is not associated with described STA.
In conjunction with the possible implementation of the second of fourth aspect or fourth aspect to any one in the 6th kind of possible implementation of fourth aspect, in the 7th kind of possible implementation of fourth aspect, described STA also comprises:
Second transmitting element, for sending the request message for setting up robust uplink RUT to described A-AP;
Second receiving element, for receiving the response message that described A-AP sends.
In conjunction with the 7th kind of possible implementation of fourth aspect, in the 8th kind of possible implementation of fourth aspect, when described response message indicates described RUT immediately built, in described response message, comprise the first multicast address; Described first multicast address is the destination address of described uplink frame, and described first multicast address is used for: by described first multicast address, described C-AP can determine whether described STA is validated user.
In conjunction with the possible implementation of the second of fourth aspect or fourth aspect to any one in the 7th kind of possible implementation of fourth aspect, in the 9th kind of possible implementation of fourth aspect, the source address of described uplink frame is the MAC address of described STA, and destination address is MAC address or first multicast address of described A-AP; Described first multicast address is used for: by described first multicast address, described C-AP can determine whether described STA is validated user.
In conjunction with the possible implementation of the second of fourth aspect or fourth aspect to any one in the 7th kind of possible implementation of fourth aspect, in the tenth kind of possible implementation of fourth aspect, described uplink frame comprises the identification information of the management entity belonging to described A-AP.
Fifth aspect present invention provides a kind of access point AP, comprising:
Receiving element, for the uplink frame that receiving station STA sends, comprises robust uplink RUT indication information in described uplink frame;
Processing unit, for when described RUT indication information gets the first value, carries out RUT process to described uplink frame; Wherein, described AP comprises the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation with described A-AP.
In conjunction with the 5th aspect, in the first the possible implementation in the 5th, described processing unit also for: determine that the source address of carrying in described uplink frame or destination address are present in the cooperation list of described C-AP; Or, determine that the mark of the mark of the management entity that described uplink frame is carried and the management entity belonging to described C-AP matches.
In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in the implementation that the second in the 5th is possible, described processing unit specifically for: judge whether described uplink frame receives successfully; If receive successfully, described uplink frame is transmitted to the management entity belonging to described A-AP and described C-AP.
In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in the third possible implementation in the 5th, when described uplink frame comprises multiple burst, described processing unit specifically for: described multiple burst is transmitted to the management entity belonging to described A-AP and described C-AP; Or
Described multiple burst is verified;
The correct burst of verification is transmitted to the management entity belonging to described A-AP and described C-AP.
In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in the 4th kind of possible implementation in the 5th, described processing unit specifically for: the received signal strength indicator RSSI by the uplink frame of not decoding and when receiving described uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to the management entity belonging to described A-AP and described C-AP; Wherein, described uplink frame of not decoding is the described uplink frame value before channel decoding that described receiving element receives.
In conjunction with the first possible implementation of the 5th aspect or the 5th aspect to any one in the 4th kind of possible implementation of the 5th aspect, in the 5th kind of possible implementation in the 5th, when described AP is specially described A-AP, described AP also comprises transmitting element
Described receiving element is also for receiving the request message for setting up robust uplink RUT that described STA sends;
Described transmitting element is used for sending cooperation request message to described C-AP;
Described receiving element is also for receiving the cooperation response message that described C-AP sends;
Described transmitting element is also for sending response message to described STA.
In conjunction with the first possible implementation of the 5th aspect or the 5th aspect to any one in the 5th kind of possible implementation of the 5th aspect, in the 6th kind of possible implementation in the 5th, when described AP is specially C-AP, described processing unit is concrete also for the MAC address of the first multicast address, described STA or the MAC address of described A-AP being recorded in cooperation list.
In conjunction with the first possible implementation of the 5th aspect or the 5th aspect to any one in the 6th kind of possible implementation of the 5th aspect, in the 7th kind of possible implementation in the 5th, described AP also comprises transmitting element,
Described transmitting element specifically for: after short interFrameGap SIFS, send the acknowledge message being used to indicate described uplink frame and being correctly received to described STA; Or
Send the acknowledge message being used to indicate described uplink frame and being correctly received to described STA after obtaining media delivery chance.
Sixth aspect present invention provides a kind of communication system, comprising:
Association access point A-AP, for the uplink frame that receiving station STA sends, comprises robust uplink RUT indication information in described uplink frame; Described A-AP is the association access point of described STA;
Cooperation access point C-AP, for receiving described uplink frame, described C-AP is the access point having cooperation relation with described A-AP;
Wherein, when described RUT indication information gets the first value, described A-AP and described C-AP is all for carrying out RUT process to described uplink frame.
In conjunction with the 6th aspect, in the first the possible implementation in the 6th, when described RUT indication information gets the first value, described C-AP also for:
Determine that the source address of carrying in described uplink frame or destination address are present in the cooperation list of described C-AP; Or
Determine that the mark of the mark of the management entity that described uplink frame is carried and the management entity belonging to described C-AP matches.
In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in the implementation that the second in the 6th is possible, described A-AP and described C-AP specifically for: judge whether described uplink frame receives successfully; If receive successfully, described uplink frame is transmitted to the management entity belonging to described A-AP and described C-AP.
In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in the third the possible implementation in the 6th, when described uplink frame comprises multiple burst, described A-AP and described C-AP specifically for:
Described multiple burst is transmitted to the management entity belonging to described A-AP and described C-AP; Or
Described multiple burst is verified;
The correct burst of verification is transmitted to the management entity belonging to described A-AP and described C-AP.
In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in the 4th kind of possible implementation in the 6th, described A-AP and described C-AP specifically for: the received signal strength indicator RSSI by the uplink frame of not decoding and when receiving described uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to the management entity belonging to described A-AP and described C-AP; Wherein, described uplink frame of not decoding is the described uplink frame value before channel decoding that described A-AP and described C-AP receive.
In conjunction with the first possible implementation of the 6th aspect or the 6th aspect to any one in the 4th kind of possible implementation of the 6th aspect, in the 5th kind of possible implementation in the 6th, described A-AP is also for receiving the request message for setting up robust uplink RUT that described STA sends; And send cooperation request message to described C-AP; Also for receiving the cooperation response message that described C-AP sends; And send response message to described STA.
In conjunction with the 5th kind of possible implementation of the 6th aspect, in the 6th kind of possible implementation in the 6th, in described cooperation request message, comprise the first multicast address, the MAC address of described STA or the MAC address of described A-AP; Described first multicast address is specially the destination address of described uplink frame.
In conjunction with the 6th kind of possible implementation of the 6th aspect, in the 7th kind of possible implementation in the 6th, described C-AP is also for being recorded in the described MAC Address of described first multicast address, described STA or the MAC Address of described A-AP in cooperation list.
In conjunction with the first possible implementation of the 6th aspect or the 6th aspect to any one in the 6th kind of possible implementation of the 6th aspect, in the 8th kind of possible implementation in the 6th, described C-AP is also for being recorded in the MAC address of described A-AP in cooperation list.
In conjunction with the first possible implementation of the 6th aspect or the 6th aspect to any one in the 8th kind of possible implementation of the 6th aspect, in the 9th kind of possible implementation in the 6th, when described uplink frame is correctly received,
Described A-AP also for sending the acknowledge message being used to indicate described uplink frame and being correctly received after short interFrameGap SIFS to described STA; Or
Described A-AP and/or C-AP of the described uplink frame of all correct receptions also for sending to described STA the acknowledge message being used to indicate described uplink frame and being correctly received simultaneously after short interFrameGap SIFS; Or
Described A-AP and/or described C-AP also for sending the acknowledge message being used to indicate described uplink frame and being correctly received after obtaining media delivery chance to described STA.
In conjunction with the first possible implementation of the 6th aspect or the 6th aspect to any one in the 9th kind of possible implementation of the 6th aspect, in the tenth kind of possible implementation in the 6th, described communication system also comprises:
Management entity, for receiving at least one duplicate of the described uplink frame that described A-AP and/or described C-AP forwards; And merging treatment is carried out at least one duplicate of described uplink frame; Wherein, described A-AP and described C-AP is managed by described management entity.
In conjunction with the tenth kind of possible implementation of the 6th aspect, in the 11 kind of possible implementation in the 6th, described management entity specifically for:
When at least one duplicate described be decoded media access control MAC layer data and containing many bursts time, the correct arbitrary duplicate of selection check is as merging frame; Or
When described uplink frame comprises multiple burst, multiple burst duplicates of each burst are verified respectively, using the amalgamation result of burst duplicate correct for verification as described each burst; Or
When at least one duplicate described is when not carrying out the duplicate of channel-decoding, at least one duplicate described is processed by turn according to ad hoc rules, obtain and merge frame.
Seventh aspect present invention provides a kind of management entity, comprising:
Receiving element, for receiving at least one duplicate of the uplink frame from site STA that association access point A-AP and/or cooperation access point C-AP forwards; Described A-AP is the access point associated with described STA, described C-AP is the access point having cooperation relation with described A-AP, robust uplink RUT indication information is comprised in described uplink frame, and described RUT indication information is the first value, described RUT indication information represents the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with described A-AP when getting the first value, and does RUT process to described uplink frame;
Processing unit, for carrying out merging treatment at least one duplicate of described uplink frame.
In conjunction with the 7th aspect, in the first the possible implementation in the 7th, described processing unit specifically for:
When at least one duplicate described be decoded media access control MAC layer data and containing many bursts time, the correct arbitrary duplicate of selection check is as merging frame; Or
When described uplink frame comprises multiple burst, multiple burst duplicates of each burst are verified respectively, using the amalgamation result of burst duplicate correct for verification as described each burst; Or
When at least one duplicate described is when not carrying out the duplicate of channel-decoding, at least one duplicate described is processed by turn according to ad hoc rules, obtain and merge frame.
The one or more technical schemes provided in the embodiment of the present invention, at least have following technique effect or advantage:
In the embodiment of the present invention, site STA generates uplink frame, uplink frame comprises robust uplink RUT indication information, RUT indication information represents the association access point A-AP that associates with STA and has the access point C-AP that cooperates of cooperation relation all to receive uplink frame with A-AP when getting the first value, and does RUT process to uplink frame; RUT indication information represents when getting the second value that the association access point A-AP only associated with STA receives and does non-RUT process to uplink frame; STA sends uplink frame.Therefore, in embodiments of the present invention, STA can carry RUT indication information in uplink frame, according to the difference of the value of RUT indication information, network equipment, such as A-AP and/or C-AP, can carry out different process to this uplink frame, such as: when RUT gets the second value, only A-AP processes this uplink frame, just can ensure the reliability transmitted, and only have A-AP process, so the resource of C-AP can be saved; And when RUT gets the first value, A-AP and C-AP all can process this uplink frame, improve the probability that this uplink frame is correctly received, can ensure the performance of uplink, such as reliability, robustness with the inventive method; Further, can retransmission probability be reduced, the efficiency of uplink is provided.Especially for the environment of high density WiFi equipment distribution, utilize the ascending transmission method in the embodiment of the present invention, can upstream performance be improved, to offset the equipment room interference that equipment dense distribution causes.
Accompanying drawing explanation
Fig. 1 is a kind of possible communication system architecture figure in the embodiment of the present invention;
Fig. 2 is the flow chart of the ascending transmission method of website side in the embodiment of the present invention;
Fig. 3 be set up in the embodiment of the present invention RUT connect each network element between mutual schematic diagram;
Fig. 4 is the flow chart of the ascending transmission method of access point side in the embodiment of the present invention;
Fig. 5 is the frame structure schematic diagram of sliced transmission in the embodiment of the present invention;
Fig. 6 is the functional block diagram of website in the embodiment of the present invention;
Fig. 7 is the hard-wired instance concepts figure of website in the embodiment of the present invention;
Fig. 8 is the functional block diagram of access point AP in the embodiment of the present invention;
Fig. 9 is the hard-wired instance concepts figure of access point AP in the embodiment of the present invention;
Figure 10 is the functional block diagram of management entity in the embodiment of the present invention;
Figure 11 is the hard-wired instance concepts figure of management entity in the embodiment of the present invention;
Figure 12 is the functional block diagram of communication system in the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of ascending transmission method, website, communication system and management entity, in order to improve upstream performance.
Technical scheme in the embodiment of the present invention is solve above-mentioned technical problem, and general thought is as follows:
In the embodiment of the present invention, site STA generates uplink frame, uplink frame comprises robust uplink RUT indication information, RUT indication information represents the association access point A-AP that associates with STA and has the access point C-AP that cooperates of cooperation relation all to receive uplink frame with A-AP when getting the first value, and does RUT process to uplink frame; RUT indication information represents when getting the second value that the association access point A-AP only associated with STA receives and does non-RUT process to uplink frame; STA sends uplink frame.Therefore, in embodiments of the present invention, STA can carry RUT indication information in uplink frame, according to the difference of the value of RUT indication information, network equipment, such as A-AP and/or C-AP, can carry out different process to this uplink frame, such as: when RUT gets the second value, only A-AP processes this uplink frame, just can ensure the reliability transmitted, and only have A-AP process, so the resource of C-AP can be saved; And when RUT gets the first value, A-AP and C-AP all can process this uplink frame, improve the probability that this uplink frame is correctly received, can ensure the performance of uplink, such as reliability, robustness with the inventive method; Further, can retransmission probability be reduced, the efficiency of uplink is provided.Especially for the environment of high density WiFi equipment distribution, utilize the ascending transmission method in the embodiment of the present invention, can upstream performance be improved, to offset the equipment room interference that equipment dense distribution causes.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, and such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/" herein, general expression forward-backward correlation is to the relation liking a kind of "or".
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
The present embodiment provides a kind of ascending transmission method, please refer to shown in Fig. 1, for being applicable to a kind of possible communication system architecture of ascending transmission method in the present embodiment, this communication system architecture comprises: management entity, for coordinating multiple AP (AccessPoint), optionally, the data also for receiving multiple AP carry out merging treatment; Multiple AP, comprises A-AP (AssociationAP; Association access point) and C-AP (CooperativeAP; Cooperation access point), wherein, A-AP is and STA (Station; Website) AP that is associated, C-AP be that the AP between A-AP with cooperation relation, STA and C-AP are not associated relation.As shown in fig. 1, A-AP has two C-AP, is respectively C-AP1 and C-AP2.
It should be noted that, management entity is a logical concept, in physics realization, it can be an independently physical entity, also can be a logic module in certain communication equipment, such as: if by wired connection between each AP, then A-AP itself also can serve as management entity.Management entity can also be AP controller, mobile management entity, gateway or central control server etc.
The ascending transmission method the present embodiment is introduced by following elder generation from STA side, please refer to shown in Fig. 2, and be the flow chart of the ascending transmission method in the present embodiment, the method comprises:
Step 101: site STA generates uplink frame; Wherein, uplink frame comprises RUT (RobustUplinkTransmission; Robust uplink) indication information, represent the association access point A-AP associated with STA when RUT indication information gets the first value and have the access point C-AP that cooperates of cooperation relation all to receive uplink frame with A-AP, and RUT process is done to uplink frame; RUT indication information represents when getting the second value that the association access point A-AP only associated with STA receives this uplink frame and does non-RUT process to uplink frame;
Step 102:STA sends uplink frame.
Optionally, before STA performs step 101, the method also comprises: STA obtains the probability that the uplink frame before this uplink frame is correctly received by A-AP, and when probability is greater than first threshold, RUT indication information is set to the second value by STA.And/or,
STA obtains the probability that the uplink frame before this uplink frame is correctly received by A-AP, and when this probability is less than Second Threshold, RUT indication information is set to the first value by STA.
For example, the probability that the uplink frame before STA can oneself calculate correctly is received by A-AP, also can be that A-AP calculates the correct probability receiving uplink frame, then STA gets this probability from A-AP.
Generally, first threshold can be arranged according to the demand of transmission performance, if higher to transmission performance demand, it is higher that first threshold can be arranged, such as be set to 90%, if lower to the demand of transmission performance, it is lower that first threshold can be arranged, such as, be set to 70%.When this probability is greater than first threshold, illustrate that only A-AP is to uplink frame process, the possibility that this uplink frame is correctly received is very large, so RUT indication information is set to the second value, thus, both can ensure upstream performance, the resource of C-AP can be saved again.
For the setting of Second Threshold, usually also can arrange according to the demand of transmission performance.When this probability is less than Second Threshold, illustrate that only A-AP is to uplink frame process, the probability that this uplink frame is correctly received is lower, the probability that STA retransmits will be increased like this, so at this moment RUT indication information can be set to the first value by STA, thus, A-AP and C-AP all can carry out reception process to uplink frame, thus the probability that raising uplink frame is correctly received, ensure transmission performance.
It should be noted that, arranging of first threshold and Second Threshold, for preventing ping-pong, such as first threshold and Second Threshold are all thr0, then when the correct probability of acceptance fluctuates up and down around thr0, STA will enable and close RUT pattern pingpang handoff back and forth between the two.Therefore, usual first threshold and Second Threshold are set to different values, and first threshold is more than or equal to Second Threshold, and such as: first threshold is thr0+ Δ, Second Threshold is thr0-Δ.
The probability that uplink frame before describing calculating is in the embodiment above correctly received, then compares the size between this probability and threshold value, and then determines the value of RUT indication information to be set to the first value or the second value; But in practice, also the probability that the uplink frame before can calculating is not correctly received, then this probability and threshold value are compared, such as: STA obtains uplink frame before this uplink frame not by probability that A-AP correctly receives, when this probability is less than the 3rd threshold value, RUT indication information is set to the second value by STA; When this probability is greater than the 4th threshold value, RUT indication information is set to the first value by STA.Usual 4th threshold value is more than or equal to the 3rd threshold value.
In practice, also can by considering RSSI (ReceivedSignalStrengthIndication; Received signal strength indicator) or SINR (SignaltoInterferenceplusNoiseRatio; Signal Interference and Noise Ratio), or the retransmission rate of uplink frame, determine whether open or close RUT transmission mode.
Wherein, can calculate in the following manner: first method for retransmission rate, STA is a Successful transmissions m different frame altogether, and wherein individual being through of n (n≤m) retransmits just successfully, then retransmission rate is n/m, and transmission success rate is (m-n)/m; Or second method, STA is a Successful transmissions m different frame altogether, and wherein the number of transmissions (transmission+retransmit) of each frame is a i(i=1 ... m), then retransmission rate is (∑ a i-m)/∑ a i, transmission success rate is m/ ∑ a i.
Directly the correct probability of reception, the probability of garbled-reception may be defined as: network side receives m uplink frame by RUT mechanism is correct, wherein the individual frame A-AP of n (n≤m) directly correctly receives, then directly the correct probability received is n/m, and the probability of garbled-reception is (m-n)/m.
Optionally, before step 101, the method also comprises: STA receives the indication information that A-AP sends, and indication information is used to indicate STA and whether opens RUT transmission mode;
RUT indication information is at least set to the first value or the second value according to indication information by STA.
STA receives the indication information that A-AP sends, and specifically, can be that A-AP calculates the correct probability receiving the uplink frame of STA, when this probability is greater than first threshold, send indication information to STA.Or A-AP sends indication information according to other conditions to STA.
For example, when STA receives indication information, and when indication information is the 3rd value, RUT indication information is just set to the second value by STA.
Or STA receives the indication information that A-AP sends, and when indication information is the 4th value, RUT indication information is set to the first value or the second value by STA.
For the second situation, can be that indication information is set to the 4th value by A-AP, to indicate STA can open RUT transmission mode, now STA can decide in its sole discretion and whether open RUT transmission mode, so both RUT indication information can be set to the first value, also the second value can be set to, when STA decides in its sole discretion, can with reference to the quantity of surrounding AP, such as, STA detects that the AP of surrounding is little, and may not there is the C-AP associated with this A-AP, now can arrange RUT indication information is the second value.
Certainly, when indication information is the 4th value, also can represents and require that STA must open RUT transmission mode, so now STA arranges the value of RUT indication information is the first value.
A kind of preferred scheme is that the decision of enabling RUT is made by STA, because STA more easily accurately judges uplink frame retransmission rate, and the decision of closing RUT is made by A-AP, because A-AP more easily accurately judges that whether uplink frame is by oneself direct correct probability received.
Optionally, RUT indication information is arranged in the physics head targeting sequencing of this uplink frame.Such as: SIG (Signal) territory being positioned at this uplink frame, namely in signal domain.In practice, RUT indication information also can be arranged in service-domain.
Optionally, indication information can be positioned at physics head targeting sequencing or the MAC (MediaAccessControl of the downlink frame that A-AP sends to STA; Medium education) in head.
Optionally, RUT indication information and indication information can utilize the identical indicating bit in the physics head targeting sequencing of transmission frame to represent, for convenience of describing, this identical indicating bit is called the first indicating bit.Further, in this case, the indicating bit that represents uplink/downlink can also being comprised in physics head, for convenience of describing, being called the second indicating bit.When the second indicating bit represents uplink frame, the first indicating bit represents that STA enables/not enabled RUT transmission mode; When the second indicating bit represents downlink frame, the first indicating bit represents that A-AP requires STA On/Off RUT transmission mode.
In a further embodiment, before step 102, the method also comprises: STA sends the request message for setting up robust uplink RUT to A-AP, and STA receives the response message that A-AP sends.Wherein, response message may be used for instruction RUT and sets up, and also may be used for instruction RUT and sets up unsuccessfully.
Specifically, please refer to shown in Fig. 3, for setting up in the process of RUT transmission mode, the interaction figure between each network element.First STA is to the request message (step 1.) of A-AP transmission for setting up RUT; After A-AP receives this request message, send RUT cooperation request (step 2. with step 3.) by management entity to C-AP; When A-AP receives the cooperation response that the expression from C-AP confirms (step 4. with step 5.), to the response message that STA reply RUT has set up, corresponding, what STA just received that A-AP sends be used to indicate response message (step is 6.) that RUT set up.
Optionally, what can comprise STA in request message closes on AP list, and namely STA can intercept the AP near self in advance, then in request message, AP list can be reported A-AP, also special management frames can be used to report, so contribute to A-AP and select C-AP more accurately.
Optionally, the MAC Address of this STA is also included in request message, and MAC Address is also transmitted to C-AP by A-AP in cooperation request, so, after C-AP confirms cooperation relation, this MAC Address can be added in local cooperation list, when follow-up C-AP receives the uplink frame including RUT indication information, can judge whether to have with self the STA of cooperation relation to send by the MAC Address in cooperation list.
Certainly, the implementation method of another possibility is: A-AP carries the MAC Address of the first multicast address or A-AP in cooperation request, and then C-AP is after confirmation cooperation relation, the MAC Address of the first multicast address or A-AP is recorded in cooperation list.In this case, the first multicast address can be sent to STA sending to being used to indicate in the response message that RUT set up of STA by A-AP.Follow-up, the first multicast address can as the destination address of uplink frame, and the first multicast address is used for: by the first multicast address, C-AP can determine whether STA is validated user.
If what adopt is the MAC Address of STA, when generating uplink frame in a step 101, just the source address of uplink frame can be set to the MAC Address of STA, be convenient to C-AP and judges.
If what adopt is the words of the MAC Address of the first multicast address or A-AP, when generating uplink frame in a step 101, just the destination address of uplink frame can be set to the MAC Address of the first multicast address or A-AP, C-AP is when receiving this uplink frame, address in destination address and cooperation list is compared, judges whether to need to process this uplink frame.
Wherein, the MAC Address of STA can be carried at the TA (TransmitterAddress of uplink frame; Transmitter address) territory, the MAC Address of the first multicast address or A-AP can be carried at the RA (ReceiverAddress of uplink frame; Receiver address) territory.
Optionally, when STA generates uplink frame in a step 101, the identification information of the management entity belonging to A-AP is comprised in uplink frame, be convenient to C-AP and judge whether STA is validated user, generally, when the management entity mark belonging to A-AP and management entity marking matched belonging to C-AP, just can judge that this STA is as validated user, just can carry out subsequent step.Wherein this identification information can utilize the HESSID (HomogenousExtendedServiceSetIdentifier in WiFi; Homogeneity extended service set identification) represent, this identification information can be carried at MAC head part or the loading section of uplink frame, such as, be included in the 3rd address field of MAC head.
In a step 102, STA sends uplink frame, after step 102, if this uplink frame is correctly received, STA also can receive from A-AP and/or C-AP for notifying the acknowledge message that this uplink frame of STA is correctly received.The embodiment of this part is described in detail in the implementation process of the ascending transmission method of subsequent descriptions AP side.
Next please refer to shown in Fig. 4, is the flow chart of the ascending transmission method of AP side.The method comprises:
Step 201:AP receives the uplink frame that STA sends, and comprises RUT indication information in uplink frame;
Step 202:AP carries out RUT process to uplink frame; Wherein, AP comprises the association access point A-AP that associates with STA and has the access point C-AP that cooperates of cooperation relation with A-AP.
Optionally, when RUT indication information gets the second value, AP is the association access point A-AP associated with STA, and only A-AP carries out non-RUT process to this uplink frame.
Wherein, non-RUT process is carried out to this uplink frame, mode of the prior art can be utilized to process, such as: to the uplink frame decoding received; Judge whether correct reception according to Frame Check Sequence, if correctly receive, then send acknowledge message or do not send acknowledge message according to confirmation strategy to STA; If garbled-reception, then abandon this uplink frame.
In the present embodiment, AP both can be A-AP, also can comprise A-AP and C-AP, for the situation comprising C-AP, also not limiting the quantity of C-AP, both can be 1, also can be two, or three or more, the quantity of C-AP can be arranged according to the actual requirements.
Optionally, when RUT indication information gets the first value, before step 202, the method also comprises: C-AP determines that the source address of carrying in uplink frame or destination address are arranged in the cooperation list of C-AP; Or C-AP determines that the mark of the mark of the management entity belonging to the STA that uplink frame is carried and the management entity belonging to C-AP matches.
Introduce when the ascending transmission method of aforementioned description STA side, source address or destination address can be carried in uplink frame, and these addresses can when setting up RUT transmission, source address or destination address are recorded in cooperation list, compare so C-AP can be recorded with the address cooperated in list by source address or destination address, if be arranged in cooperation list, just can determine from the cooperation AP as the A-AP of this STA, namely this STA is validated user, so will process this uplink frame.
Introduce as aforementioned, also the identification information of management entity belonging to A-AP can be carried in uplink frame, so by judging whether the mark of the management entity belonging to the mark of the management entity that uplink frame is carried and C-AP matches, C-AP can determine whether this STA is validated user, if validated user, just can determine from the cooperation AP as the A-AP of this STA, so will process this uplink frame.Such as: the mark of management entity represents with HSEEID, and be carried in the 3rd address field of uplink frame, so C-AP resolves the 3rd address field and should be HESSID, instead of the BSSID (BasicServiceSetIdentifier of traditional WLAN; Basic service set identification).The method can accelerate validity judgement process, and AP Maintenance free cooperation list.
The legitimacy of STA is judged by cooperation list, a kind of possible implementation is: all A-AP are while the association accepting STA, the information of association is distributed to all AP under same management entity by management entity, each AP sets up a cooperation list based on the information of this association, and C-AP can judge the legitimacy of this STA by this list.
Another kind of possible implementation for: the MAC Address of all AP that oneself manages by management entity is distributed to all AP, and each AP safeguards a cooperation list be made up of the MAC Address of AP accordingly.In other words, the MAC Address of A-AP is recorded in cooperation list by C-AP, and C-AP can judge the legitimacy of this STA by this cooperation list.Such as: when C-AP receives a uplink frame, and when the RUT indication information of uplink frame is the first value, if the address of described uplink frame 1 (Address1) territory and a matching addresses in self cooperation list, RUT process will be carried out to this uplink frame.
Usually when STA is validated user, AP just carries out RUT process, malice STA so can be avoided deliberately to send the uplink frame that RUT indication information is the first value, make AP ceaselessly perform RUT process, and have no time to process regular traffic.Meanwhile, AP more accurately can judge which RUT uplink frame needs oneself process, with the wasting of resources avoiding unnecessary frame process to bring.Further, AP can screen and tackle malicious data frame, avoids impacting management entity.
The implementation process of following description step 202, in the implementation that the first is possible, step 202 specifically comprises: A-AP and C-AP judges whether uplink frame receives successfully; If receive successfully, uplink frame is transmitted to the management entity belonging to A-AP and C-AP by A-AP or C-AP.
Specifically, A-AP and C-AP decodes after the uplink frame that receives, according to the FCS (FrameCheckSequence in uplink frame; Frame Check Sequence) territory judges whether to receive correct, if correctly, then the uplink frame received is transmitted to management entity.When having at least one to be correctly decoded in A-AP and multiple C-AP, represent this uplink success.And in this implementation, the judgement whether uplink frame is correctly received is made by AP itself.
In the implementation that the second is possible, uplink frame comprises multiple burst, and such as uplink frame adopts Mid-CRC (Middle-CyclicRedundancyCheck; Intercycle redundancy check) mechanism carries out transmitting, and Mid-CRC mechanism refers to and transmission frame is divided into multiple burst, and each burst adds a CRC (cyclicredundancycode; Cyclic redundancy check (CRC)) territory, make each burst independent judgment can receive correctness, the structure of the transmission frame of Mid-CRC mechanism is as shown in Figure 5.Step 202 specifically comprises: multiple burst is transmitted to the management entity belonging to A-AP and C-AP by A-AP and C-AP.
Or A-AP and C-AP verifies multiple burst; The correct burst of verification is transmitted to the management entity belonging to A-AP and C-AP by A-AP and C-AP.
When not carrying out verifying for AP self and be directly transmitted to management entity, the work of burst verification has been come by management entity, and detailed checking procedure will in subsequent descriptions.
AP oneself is completed to the situation of verification, each AP is verified each burst by CRC territory, only the correct burst of verification is transmitted to management entity.Such as: for having the uplink frame of three bursts, the result of A-AP verification is that burst 1 is correctly received, the result of C-AP1 verification is that burst 2 is correctly received, the result of C-AP2 verification is that burst 2 and burst 3 are all correctly received, so successful for verification burst 1 is just transmitted to management entity by A-AP, successful for verification burst 2 is transmitted to management entity by C-AP1, and successful for verification burst 2 and burst 3 are transmitted to management entity by C-AP2.When management entity receives the burst of each verification succeeds, each burst is merged, find that all bursts have the duplicate of verification succeeds, the judgement that uplink frame is correctly received can be made.
In the implementation that the third is possible, step 202 specifically comprises: the received signal strength indicator RSSI when uplink frame of not decoding and reception uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to the management entity belonging to A-AP and C-AP by A-AP and C-AP; Wherein, the uplink frame of not decoding is the uplink frame value before channel decoding that A-AP and C-AP receives.How management entity carries out merging will be described follow-up.
Optionally, before step 201, the method also comprises: A-AP receives the request message for setting up robust uplink RUT that STA sends; A-AP sends cooperation request message to C-AP; A-AP receives the cooperation response message that C-AP sends; A-AP sends response message to STA.Specifically please refer to Fig. 3 and associated description.
Similar, the first multicast address, the MAC Address of STA or the MAC Address of A-AP can be comprised in cooperation request message.
Optionally, the MAC Address of the MAC Address of the first multicast address, STA or A-AP can be recorded in cooperation list by C-AP.
The source address of uplink frame can be set to the MAC Address of STA by STA, or destination address is set to the MAC Address of the first multicast address or A-AP, is so convenient to C-AP and judges.
After step 202, the method also comprises: when uplink frame is correctly received, A-AP and/or C-AP sends the acknowledge message being used to indicate uplink frame and being correctly received to STA.
In practice, sending acknowledge message also has numerous embodiments, below introduces three kinds of possible implementations, but is not limited to this three kinds of modes.
The first possible implementation: at once confirmed by A-AP.As a rule, when in the certain hour of C-AP after receiving uplink frame, can complete: uplink frame completes process on C-AP or management entity, and result is notified A-AP, A-AP completes the preparation of transmission.Now, acknowledge message can be sent after a certain time by A-AP, and this certain hour is generally SIFS (ShortInterframeSpace; Short interFrameGap).Which is applicable to three kinds of processing modes in abovementioned steps 202.
The implementation that the second is possible: multiple AP cooperation confirms.When being not enough to that in SIFS result is informed A-AP, then can after sifs, A-AP and/or C-AP of all correct this uplink frame of reception sends acknowledge message simultaneously.Preferably, the method is applicable to the first possible implementation of abovementioned steps 202.Certainly, for situation result can being informed A-AP in the SIFS time, this programme can be suitable for, and so can strengthen the transmission reliability of acknowledge message frame.Therefore, other two kinds possible implementations are also applicable in step 202.
The third possible implementation: delayed acknowledgement.When network side is difficult to complete data processing within the SIFS time and the message getting out acknowledge message, network side may need to send acknowledge message after the longer time.Now, network side, i.e. AP or management entity, after correct reception uplink frame, reply acknowledge message after obtaining media delivery chance next time.Wherein, in WiFi, AP occupies a period of time and channel transmits, and such resource is called media delivery chance, media and channel.And media delivery chance will be obtained, the mode by competition or AP United Dispatching realizes.Here, after AP receives uplink frame, obtaining new media delivery chance by attempting, once obtain, can acknowledge message be sent.For STA, after step 102, wait for RUT time-out time, if receive acknowledge message not yet after this time, then attempt retransmitting.Preferably, RUT time-out time is greater than existing ACK (Acknowledge; Confirm) time-out time.
Next will introduce ascending transmission method of the present invention from management entity side, the method comprises: management entity receives at least one duplicate of the uplink frame from site STA that association access point A-AP and/or cooperation access point C-AP forwards; A-AP is the access point associated with STA, and C-AP is the access point having cooperation relation with A-AP, comprise robust uplink RUT indication information, and RUT indication information is the first value in uplink frame; Management entity at least one duplicate to uplink frame carries out merging treatment.Wherein, represent the association access point A-AP associated with STA when RUT indication information gets the first value and have the access point C-AP that cooperates of cooperation relation all to receive this uplink frame with A-AP, and RUT process is done to this uplink frame.
Corresponding to the different execution modes in abovementioned steps 202, management entity also has different processing modes, and for the first possible execution mode of step 202, the correct arbitrary duplicate of management entity selection check is as merging frame.If all correct duplicates are all from C-AP, then management entity can also send to A-AP the notification message that this uplink frame correctly receives.The information such as MAC Address, frame type, sequence number of STA can be comprised in notification message.
Corresponding to the execution mode that the second of step 202 is possible, if AP does not verify burst, directly multiple burst is transmitted to management entity, so the multiple burst duplicates of management entity to each burst verify, using the amalgamation result of burst duplicate correct for verification as each burst.Specifically, when having at least one to verify correct in multiple duplicates of same burst, just will the correct burst duplicate of verification as the amalgamation result of this burst, when all bursts all exist the correct duplicate of verification, then this uplink frame receives correctly.
When AP is when the correct burst of verification is transmitted to management entity, management entity judges whether that all bursts all receive the correct burst duplicate of verification, and if so, then this uplink frame receives correct.
Corresponding to the third possible execution mode of step 202, AP does not carry out channel-decoding after receiving uplink frame, but is directly transmitted to management entity.Meanwhile, AP is also by RSSI (ReceivedSignalStrengthIndication during this uplink frame of this reception; Received signal strength indicator) or SINR (SignaltoInterferenceplusNoiseRatio; Signal Interference and Noise Ratio) send to AP controller; Management entity processes according to ad hoc rules by turn at least one duplicate, obtains and merges frame.Then merging frame is carried out channel-decoding, and judge whether to resolve correctly according to Frame Check Sequence territory to decoded frame.
Specifically, process by turn according to ad hoc rules, obtain and merge frame, a kind of concrete implementation method is: suppose that the kth place value of i-th duplicate of uplink frame is H (k, i), and total N number of duplicate, then the calculated value of the kth position of the i-th duplicate is wherein, for corresponding weighted factor, its value depends on RSSI or SINR, N be more than or equal to 2 integer, i is the integer between 1 to N, and k is positive integer, and the maximum of k depends on the frame length of this uplink frame.
The final value of the kth position of this uplink frame is determined according to following rule: H ~ ( k ) = 0 , &eta; k &GreaterEqual; 0.5 1 , &eta; k < 0.5 , Wherein, represent the value of kth position after merging.In this case, whether uplink frame receives correct judgement and is made by management entity.
Optionally, uplink frame is up management frames, or Frame, if the SIFS time enough completes receive process and the information transmission from C-AP to A-AP, then RUT mechanism also can be used for control frame; Or the control frame be applicable to for non-frame interaction sequence initial frame, such as: CTS (CleartoSend; Remove request), HT-delayedBlockAck (confirmation of high-throughput delay block) frame, Data (+) CF-Ack (Contention-freeAcknowledgement; Uncontested confirmation)/QoS (QualityofService; Service quality) Data (+) CF-Ack etc.
It should be noted that, in the foregoing description, it is equivalent in meaning that " correctly receiving ", " receiving correct ", " successfully receiving " of appearance, " receiving successfully " are expressed, and is this uplink frame or duplicate or burst and is correctly received.Lower same.
Described as can be seen from above, in embodiments of the present invention, STA can carry RUT indication information in uplink frame, according to the difference of the value of RUT indication information, network equipment, such as A-AP and/or C-AP, can carry out different process to this uplink frame, such as: when RUT gets the second value, only A-AP processes this uplink frame, just can ensure the reliability transmitted, and only have A-AP process, so the resource of C-AP can be saved; And when RUT gets the first value, A-AP and C-AP all can process this uplink frame, improve the probability that this uplink frame is correctly received, can ensure the performance of uplink, such as reliability, robustness with the inventive method; Further, can retransmission probability be reduced, the efficiency of uplink is provided.Especially for the environment of high density WiFi equipment distribution, utilize the ascending transmission method in the embodiment of the present invention, can upstream performance be improved, to offset the equipment room interference that equipment dense distribution causes.
Based on same inventive concept, in another embodiment of the present invention, provide a kind of website (Station; Be called for short: STA), Fig. 6 is the functional block diagram of STA.The implication of the term that the website shown in Fig. 6 relates to and specific implementation, can with reference to the associated description of earlier figures 1 to Fig. 5 and embodiment.
Please refer to shown in Fig. 6, this STA comprises: processing unit 301, for generating uplink frame, uplink frame comprises robust uplink RUT indication information, RUT indication information represents the association access point A-AP that associates with STA and has the access point C-AP that cooperates of cooperation relation all to receive this uplink frame with A-AP when getting the first value, and does RUT process to this uplink frame; RUT indication information represents when getting the second value that the association access point A-AP only associated with STA receives this uplink frame and does non-RUT process to this uplink frame; First transmitting element 302, for sending this uplink frame.
Optionally, RUT indication information, also for the probability that the uplink frame obtained before described uplink frame is correctly received by A-AP, when probability is greater than first threshold, is set to the second value by processing unit 301; And/or
RUT indication information, also for the probability that the uplink frame obtained before described uplink frame is correctly received by A-AP, when probability is less than Second Threshold, is set to the first value by processing unit 301.
Optionally, STA also comprises the first receiving element,
The indication information that first receiving element sends for receiving A-AP; Indication information is used to indicate STA and whether opens RUT transmission mode; Processing unit 301 is also for being at least set to the first value or the second value according to indication information by RUT indication information
Further, indication information is arranged in physics head targeting sequencing or the media access control MAC head of the downlink frame that A-AP sends to STA.
Optionally, RUT indication information and indication information utilize the identical indicating bit in the physics head targeting sequencing of transmission frame to represent.
In conjunction with above each embodiment, RUT indication information is arranged in the physics head targeting sequencing of uplink frame.
In conjunction with above each embodiment, STA, A-AP and C-AP are managed by same management entity; A-AP and STA is associated, and C-AP is not associated with STA.
In conjunction with above each embodiment, STA also comprises:
Second transmitting element, for sending the request message for setting up robust uplink RUT to A-AP; Second receiving element, for receiving the response message that A-AP sends.
Further, when response message, to be used to indicate RUT immediately built, comprises the first multicast address in response message.First multicast address is the destination address of described uplink frame, and the first multicast address is used for: by the first multicast address, C-AP can determine whether described STA is validated user.
Further, in conjunction with above each embodiment, the source address of uplink frame is the MAC address of STA, and destination address is MAC address or first multicast address of A-AP.First multicast address is used for: by the first multicast address, C-AP can determine whether described STA is validated user.
Further, in conjunction with above each embodiment, uplink frame comprises the identification information of the management entity belonging to A-AP.
Further, in conjunction with above each embodiment, STA also comprises: the 3rd receiving element, for receive from A-AP and/or C-AP for notifying the acknowledge message that STA uplink frame is correctly received.
Various variation pattern in ascending transmission method in earlier figures 2 embodiment and instantiation are equally applicable to the website of the present embodiment, by the aforementioned detailed description to ascending transmission method, those skilled in the art clearly can know the implementation method of website in the present embodiment, so succinct in order to specification, be not described in detail in this.
Refer again to shown in Fig. 7, is the hard-wired instance concepts figure of website in the present embodiment.This website comprises: processor 401, for generating uplink frame, described uplink frame comprises robust uplink RUT indication information, RUT indication information represents the association access point A-AP that associates with STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with A-AP when getting the first value, and does RUT process to described uplink frame; RUT indication information represents when getting the second value that the association access point A-AP only associated with STA receives described uplink frame and does non-RUT process to described uplink frame; Transmitter 402, for sending uplink frame.
Optionally, RUT indication information also for the probability that the uplink frame before obtaining uplink frame is correctly received by A-AP, when probability is greater than first threshold, is set to the second value by processor 401; And/or
RUT indication information also for the probability that the uplink frame before obtaining uplink frame is correctly received by A-AP, when probability is less than Second Threshold, is set to the first value by processor 401.
Optionally, STA also comprises receiver 403,
The indication information that receiver 403 sends for receiving A-AP; Indication information is used to indicate STA and whether opens RUT transmission mode; Processor 401 is also for being at least set to the first value or the second value according to indication information by RUT indication information.
Further, indication information is arranged in physics head targeting sequencing or the media access control MAC head of the downlink frame that A-AP sends to STA.
Optionally, RUT indication information and indication information utilize the identical indicating bit in the physics head targeting sequencing of transmission frame to represent.
In conjunction with above each embodiment, RUT indication information is arranged in the physics head targeting sequencing of uplink frame.
In conjunction with above each embodiment, STA, A-AP and C-AP are managed by same management entity; A-AP and STA is associated, and C-AP is not associated with STA.
In conjunction with above each embodiment, transmitter 402, also for sending the request message for setting up robust uplink RUT to A-AP; Receiver 403, also for receiving the response message that A-AP sends.
Further, when response message, to be used to indicate RUT immediately built, comprises the first multicast address in response message.First multicast address is the destination address of described uplink frame, and the first multicast address is used for: by the first multicast address, C-AP can determine whether described STA is validated user.
In conjunction with above each embodiment, the source address of uplink frame is the MAC address of STA, and destination address is MAC address or first multicast address of A-AP.First multicast address is used for: by the first multicast address, C-AP can determine whether described STA is validated user.
In conjunction with above each embodiment, uplink frame comprises the identification information of the management entity belonging to A-AP.
In conjunction with above each embodiment, receiver 403, also for receive from A-AP and/or C-AP for notifying the acknowledge message that STA uplink frame is correctly received.
Wherein, in the figure 7, bus architecture (representing by bus 400), bus 400 can comprise interconnected bus and the bridge of any amount, and the various electrical chains comprising the memory that one or more processor of being represented by processor 401 and memory 404 represent are connected together by bus 400.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus 400, and these are all known in the field, therefore, are no longer described further it herein.Bus interface 405 provides interface in bus 400 with between receiver 403 and transmitter 402.Receiver 403 and transmitter 402 can be same element, i.e. transceiver, are provided for the unit communicated with other devices various over a transmission medium.Depend on the character of subscriber equipment, user interface 406 can also be provided, such as keypad, display, loud speaker, microphone, joystick etc.
Processor 401 is in charge of bus 400 and common process, and memory 404 can be used to the data that storage of processor 401 uses when executable operations.
Website is specifically as follows mobile phone, panel computer and other user side equipments.
Various variation pattern in ascending transmission method in earlier figures 2 embodiment and instantiation are equally applicable to the website of the present embodiment, by the aforementioned detailed description to ascending transmission method, those skilled in the art clearly can know the implementation method of website in the present embodiment, so succinct in order to specification, be not described in detail in this.
Based on same inventive concept, the embodiment of the present invention also provides a kind of access point AP, Fig. 8 to be the functional block diagram of AP in the present embodiment.The implication of the term that the AP shown in Fig. 8 relates to and specific implementation, can with reference to the associated description of earlier figures 1 to Fig. 5 and embodiment.
Please refer to shown in Fig. 8, this AP comprises: receiving element 420, for the uplink frame that receiving station STA sends, comprises robust uplink RUT indication information in uplink frame; Processing unit 421, for when RUT indication information gets the first value, carries out RUT process to uplink frame; Wherein, AP comprises the association access point A-AP that associates with STA and has the access point C-AP that cooperates of cooperation relation with A-AP.
Optionally, processing unit 421 also for: determine that the source address of carrying in uplink frame or destination address are present in the cooperation list of C-AP; Or, determine that the mark of the mark of the management entity that uplink frame is carried and the management entity belonging to C-AP matches.
Optionally, processing unit 421 specifically for: judge whether uplink frame receives successfully; If receive successfully, uplink frame is transmitted to the management entity belonging to A-AP and C-AP.
Optionally, when uplink frame comprises multiple burst, processing unit 421 specifically for: multiple burst is transmitted to the management entity belonging to A-AP and C-AP; Or
Multiple burst is verified;
The correct burst of verification is transmitted to the management entity belonging to A-AP and C-AP.
Optionally, processing unit 421 specifically for: the received signal strength indicator RSSI by the uplink frame of not decoding and when receiving uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to management entity belonging to A-AP and C-AP; Wherein, the uplink frame of not decoding is the uplink frame value before channel decoding that receiving element 420 receives.
In conjunction with above each embodiment, when AP is specially A-AP, AP also comprises transmitting element 422,
Receiving element 420 is also for receiving the request message for setting up robust uplink RUT that STA sends; Transmitting element 422 is for sending cooperation request message to C-AP; Receiving element 420 is also for receiving the cooperation response message that C-AP sends; Transmitting element 422 is also for sending response message to STA.
In conjunction with above each embodiment, when AP is specially C-AP, processing unit 421 is concrete also for the MAC address of the first multicast address, STA or the MAC address of A-AP being recorded in cooperation list.
In conjunction with above each embodiment, AP also comprises transmitting element 422, for when uplink frame is correctly received, sends the acknowledge message being used to indicate uplink frame and being correctly received to STA.
Further, transmitting element 422 specifically for: send to STA after short interFrameGap SIFS and be used to indicate the acknowledge message that uplink frame is correctly received; Or
Send the acknowledge message being used to indicate uplink frame and being correctly received to STA after obtaining media delivery chance.
The various variation pattern of the AP implementation described in previous embodiment and instantiation are equally applicable to the AP of the present embodiment, by the aforementioned detailed description to AP implementation, those skilled in the art clearly can know the implementation method of AP in the present embodiment, so succinct in order to specification, be not described in detail in this.
Refer again to shown in Fig. 9, is the hard-wired instance concepts figure of access point AP in the present embodiment.This AP comprises: receiver 431, for the uplink frame that receiving station STA sends, comprises robust uplink RUT indication information in uplink frame; Processor 432, for when RUT indication information gets the first value, carries out RUT process to uplink frame; Wherein, AP comprises the association access point A-AP that associates with STA and has the access point C-AP that cooperates of cooperation relation with A-AP.
Optionally, processor 432 also for: determine that the source address of carrying in uplink frame or destination address are present in the cooperation list of C-AP; Or, determine that the mark of the mark of the management entity that uplink frame is carried and the management entity belonging to C-AP matches.
Optionally, processor 432 specifically for: judge whether uplink frame receives successfully; If receive successfully, uplink frame is transmitted to the management entity belonging to A-AP and C-AP.
Optionally, when uplink frame comprises multiple burst, processor 432 specifically for: multiple burst is transmitted to the management entity belonging to A-AP and C-AP; Or
Multiple burst is verified;
The correct burst of verification is transmitted to the management entity belonging to A-AP and C-AP.
Optionally, processor 432 specifically for: the received signal strength indicator RSSI by the uplink frame of not decoding and when receiving uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to management entity belonging to A-AP and C-AP; Wherein, the uplink frame of not decoding is the uplink frame value before channel decoding that receiver 431 receives.
In conjunction with above each embodiment, when AP is specially A-AP, AP also comprises transmitter 433,
Receiver 431 is also for receiving the request message for setting up robust uplink RUT that STA sends; Transmitter 433 is for sending cooperation request message to C-AP; Receiver 431 is also for receiving the cooperation response message that C-AP sends; Transmitter 433 is also for sending response message to STA.
In conjunction with above each embodiment, when AP is specially C-AP, processor 432 is concrete also for the MAC address of the first multicast address, STA or the MAC address of A-AP being recorded in cooperation list.
In conjunction with above each embodiment, AP also comprises transmitter 433, for when uplink frame is correctly received, sends the acknowledge message being used to indicate uplink frame and being correctly received to STA.
Further, transmitter 433 specifically for: send to STA after short interFrameGap SIFS and be used to indicate the acknowledge message that uplink frame is correctly received; Or
Send the acknowledge message being used to indicate uplink frame and being correctly received to STA after obtaining media delivery chance.
Wherein, in fig .9, bus architecture (representing by bus 430), bus 430 can comprise interconnected bus and the bridge of any amount, and the various electrical chains comprising the memory that one or more processor of being represented by processor 432 and memory 434 represent are connected together by bus 430.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus 430, and these are all known in the field, therefore, are no longer described further it herein.Bus interface 435 provides interface in bus 430 with between receiver 431 and transmitter 433.Receiver 431 and transmitter 433 can be same element, i.e. transceiver, are provided for the unit communicated with other devices various over a transmission medium.
Processor 432 is in charge of bus 430 and common process, and memory 434 can be used to the data that storage of processor 432 uses when executable operations.
Access point AP can be specifically wireless router, focus or the electronic equipment with focus function, such as mobile phone, panel computer.
The various variation pattern of the AP implementation described in previous embodiment and instantiation are equally applicable to the AP of the present embodiment, by the aforementioned detailed description to AP implementation, those skilled in the art clearly can know the implementation method of AP in the present embodiment, so succinct in order to specification, be not described in detail in this.
Based on same inventive concept, the embodiment of the present invention also provides a kind of management entity, and Figure 10 is the functional block diagram of management entity in the present embodiment.The implication of the term that the website shown in Figure 10 relates to and specific implementation, can with reference to the associated description of earlier figures 1 to Fig. 5 and embodiment.
Please refer to shown in Figure 10, this management entity comprises: receiving element 501, for receiving at least one duplicate of the uplink frame from site STA that association access point A-AP and/or cooperation access point C-AP forwards; A-AP is the access point associated with STA, and C-AP is the access point having cooperation relation with A-AP, comprise robust uplink RUT indication information, and RUT indication information is the first value in uplink frame; Processing unit 502, for carrying out merging treatment at least one duplicate of uplink frame.Wherein, represent the association access point A-AP associated with STA when RUT indication information gets the first value and have the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with A-AP, and RUT process is done to described uplink frame.
Processing unit 502 specifically for:
When at least one duplicate be decoded MAC layer data and containing many bursts time, the correct arbitrary duplicate of selection check is as merging frame; Or
When uplink frame comprises multiple burst, multiple burst duplicates of each burst are verified respectively, using the amalgamation result of burst duplicate correct for verification as each burst; Or
When at least one duplicate is, when not carrying out the duplicate of channel-decoding, process by turn at least one duplicate according to ad hoc rules, obtain and merge frame.
The various variation pattern of the management entity implementation described in previous embodiment and instantiation are equally applicable to the management entity of the present embodiment, by the aforementioned detailed description to management entity implementation, those skilled in the art clearly can know the implementation method of management entity in the present embodiment, so succinct in order to specification, be not described in detail in this.
Refer again to shown in Figure 11, is the hard-wired instance concepts figure of management entity in the present embodiment.This management entity comprises: receiver 601, for receiving at least one duplicate of the uplink frame from site STA that association access point A-AP and/or cooperation access point C-AP forwards; A-AP is the access point associated with STA, and C-AP is the access point having cooperation relation with A-AP, comprise robust uplink RUT indication information, and RUT indication information is the first value in uplink frame; Processor 602, for carrying out merging treatment at least one duplicate of uplink frame.
Processor 602 specifically for:
When at least one duplicate be decoded MAC layer data and containing many bursts time, the correct arbitrary duplicate of selection check is as merging frame; Or
When uplink frame comprises multiple burst, multiple burst duplicates of each burst are verified respectively, using the amalgamation result of burst duplicate correct for verification as each burst; Or
When at least one duplicate is, when not carrying out the duplicate of channel-decoding, process by turn at least one duplicate according to ad hoc rules, obtain and merge frame.
Wherein, in fig. 11, bus architecture (representing by bus 600), bus 600 can comprise interconnected bus and the bridge of any amount, and the various electrical chains comprising the memory that one or more processor of being represented by processor 602 and memory 604 represent are connected together by bus 600.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus 600, and these are all known in the field, therefore, are no longer described further it herein.Bus interface 605 provides interface in bus 400 with between receiver 601 and transmitter 603.Receiver 601 and transmitter 603 can be same element, i.e. transceiver, are provided for the unit communicated with other devices various over a transmission medium.
Processor 602 is in charge of bus 600 and common process, and memory 604 can be used to the data that storage of processor 602 uses when executable operations.
The various variation pattern of the management entity implementation described in previous embodiment and instantiation are equally applicable to the management entity of the present embodiment, by the aforementioned detailed description to management entity implementation, those skilled in the art clearly can know the implementation method of management entity in the present embodiment, so succinct in order to specification, be not described in detail in this.
Please also refer to shown in Fig. 1 and Figure 12, Figure 12 is the functional block diagram of communication system in the embodiment of the present invention.The implication of the term that the communication system shown in Figure 12 relates to and specific implementation, can with reference to the associated description of earlier figures 1 to Fig. 5 and embodiment.
Please refer to shown in Figure 12, this communication system comprises: association access point A-AP, for the uplink frame that receiving station STA sends, comprises robust uplink RUT indication information in uplink frame; A-AP is the association access point of STA; Cooperation access point C-AP, for receiving uplink frame, C-AP is the access point having cooperation relation with A-AP; Wherein, when RUT indication information gets the first value, A-AP and C-AP is all for carrying out RUT process to uplink frame.Wherein, illustrate only 4 C-AP in fig. 12, in practice, the quantity of C-AP can be one, two, three or more.Further, the dotted line between A-AP and C-AP represents and can be connected by direct link between the two, also can be connected by non-immediate link.
Optionally, when RUT indication information gets the first value, C-AP also for:
Determine that the source address of carrying in uplink frame or destination address are present in the cooperation list of C-AP; Or
Determine that the mark of the mark of the management entity that uplink frame is carried and the management entity belonging to C-AP matches.
In one embodiment, A-AP and C-AP specifically for: judge whether uplink frame receives successfully; If receive successfully, uplink frame is transmitted to the management entity belonging to A-AP and C-AP.
In another embodiment, when uplink frame comprises multiple burst, A-AP and C-AP specifically for:
Multiple burst is transmitted to the management entity belonging to A-AP and C-AP; Or
Multiple burst is verified;
The correct burst of verification is transmitted to the management entity belonging to A-AP and C-AP.
In an embodiment again, A-AP and C-AP specifically for: the received signal strength indicator RSSI by the uplink frame of not decoding and when receiving uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to the management entity belonging to A-AP and C-AP; Wherein, the uplink frame of not decoding is the uplink frame value before channel decoding that A-AP and C-AP receives.
In conjunction with above each embodiment, A-AP is also for receiving the request message for setting up robust uplink RUT that STA sends; And send cooperation request message to C-AP; Also for receiving the cooperation response message that C-AP sends; And send response message to STA.
Further, the first multicast address, the MAC address of STA or the MAC address of A-AP is comprised in cooperation request message.First multicast address is specially the destination address of described uplink frame.
Further, C-AP is also for being recorded in the MAC Address of the first multicast address, STA or the MAC Address of A-AP in cooperation list.
In conjunction with above each embodiment, when uplink frame is correctly received, A-AP and/or C-AP is also for sending the acknowledge message being used to indicate uplink frame and being correctly received to STA.
Further, A-AP also for sending the acknowledge message being used to indicate uplink frame and being correctly received after short interFrameGap SIFS to STA; Or
The AP of all correct reception uplink frame also for sending to STA the acknowledge message being used to indicate uplink frame and being correctly received simultaneously after short interFrameGap SIFS; Or
A-AP and/or C-AP also for sending the acknowledge message being used to indicate uplink frame and being correctly received after obtaining media delivery chance to STA.
Optionally, communication system also comprises: management entity, for receiving at least one duplicate of the uplink frame that A-AP and/or C-AP forwards; And merging treatment is carried out at least one duplicate of uplink frame; Wherein, A-AP and C-AP is managed by management entity.Wherein, the management entity of management entity concrete example in this way described in aforementioned Figure 10 and Figure 11.
Further, management entity specifically for: when at least one duplicate be decoded MAC layer data and containing many bursts time, the correct arbitrary duplicate of selection check is as merging frame; Or
When uplink frame comprises multiple burst, multiple burst duplicates of each burst are verified respectively, using the amalgamation result of burst duplicate correct for verification as each burst; Or
When at least one duplicate is, when not carrying out the duplicate of channel-decoding, process by turn at least one duplicate according to ad hoc rules, obtain and merge frame.
The various variation pattern of the ascending transmission method described in earlier figures 1 to Fig. 5 embodiment and instantiation are equally applicable to the communication system of the present embodiment, by the aforementioned detailed description to ascending transmission method, those skilled in the art clearly can know the implementation method of communication system in the present embodiment, so succinct in order to specification, be not described in detail in this.
The one or more technical schemes provided in application embodiment, at least have following technique effect or advantage:
In the embodiment of the present invention, site STA generates uplink frame, uplink frame comprises robust uplink RUT indication information, RUT indication information represents the association access point A-AP that associates with STA and has the access point C-AP that cooperates of cooperation relation all to receive uplink frame with A-AP when getting the first value, and does RUT process to uplink frame; RUT indication information represents when getting the second value that the association access point A-AP only associated with STA receives and does non-RUT process to uplink frame; STA sends uplink frame.Therefore, in embodiments of the present invention, STA can carry RUT indication information in uplink frame, according to the difference of the value of RUT indication information, network equipment, such as A-AP and/or C-AP, can carry out different process to this uplink frame, such as: when RUT gets the second value, only A-AP processes this uplink frame, just can ensure the reliability transmitted, and only have A-AP process, so the resource of C-AP can be saved; And when RUT gets the first value, A-AP and C-AP all can process this uplink frame, improve the probability that this uplink frame is correctly received, can ensure the performance of uplink, such as reliability, robustness with the inventive method; Further, can retransmission probability be reduced, the efficiency of uplink is provided.Especially for the environment of high density WiFi equipment distribution, utilize the ascending transmission method in the embodiment of the present invention, can upstream performance be improved, to offset the equipment room interference that equipment dense distribution causes.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (56)

1. an ascending transmission method, is characterized in that, comprising:
Site STA generates uplink frame, described uplink frame comprises robust uplink RUT indication information, described RUT indication information represents the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with described A-AP when getting the first value, and does RUT process to described uplink frame; Described RUT indication information represents when getting the second value that the association access point A-AP only associated with described STA receives described uplink frame and does non-RUT process to described uplink frame;
Described STA sends described uplink frame.
2. the method for claim 1, is characterized in that, before described STA generates described uplink frame, described method also comprises:
Described STA obtains the probability that the uplink frame before described uplink frame is correctly received by described A-AP, and when described probability is greater than first threshold, described RUT indication information is set to described second value by described STA; And/or
Described STA obtains the probability that the uplink frame before described uplink frame is correctly received by described A-AP, and when described probability is less than Second Threshold, described RUT indication information is set to described first value by described STA.
3. the method for claim 1, is characterized in that, before described STA generates described uplink frame, described method also comprises:
Described STA receives the indication information that described A-AP sends, and described indication information is used to indicate described STA and whether opens RUT transmission mode;
Described RUT indication information is at least set to described first value or described second value according to described indication information by described STA.
4. method as claimed in claim 3, it is characterized in that, described indication information is arranged in physics head targeting sequencing or the media access control MAC head of the downlink frame that described A-AP sends to described STA.
5. method as claimed in claim 3, it is characterized in that, described RUT indication information and described indication information utilize the identical indicating bit in the physics head targeting sequencing of transmission frame to represent.
6. the method as described in any one of claim 1-5, is characterized in that, described RUT indication information is arranged in the physics head targeting sequencing of described uplink frame.
7. the method as described in any one of claim 1-6, is characterized in that, described STA, described A-AP and described C-AP are managed by same management entity; Described A-AP is associated with described STA, and described C-AP is not associated with described STA.
8. the method as described in any one of claim 1-7, is characterized in that, before described STA sends described uplink frame, described method also comprises:
Described STA sends the request message for setting up robust uplink RUT to described A-AP;
Described STA receives the response message that described A-AP sends.
9. method as claimed in claim 8, is characterized in that, when described response message indicates described RUT immediately built, comprise the first multicast address in described response message; Described first multicast address is the destination address of described uplink frame, and described first multicast address is used for: by described first multicast address, described C-AP can determine whether described STA is validated user.
10. the method as described in any one of claim 1-8, is characterized in that, the source address of described uplink frame is the MAC address of described STA, and destination address is MAC address or first multicast address of described A-AP; Described first multicast address is used for: by described first multicast address, described C-AP can determine whether described STA is validated user.
11. methods as described in any one of claim 1-8, it is characterized in that, described uplink frame comprises the identification information of the management entity belonging to described A-AP.
12. 1 kinds of ascending transmission methods, is characterized in that, comprising:
The uplink frame that access point AP receiving station STA sends, comprises robust uplink RUT indication information in described uplink frame;
When described RUT indication information gets the first value, described AP carries out RUT process to described uplink frame; Wherein, described AP comprises the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation with described A-AP.
13. methods as claimed in claim 12, is characterized in that, when described RUT indication information gets the first value, before described AP carries out RUT process to described uplink frame, described method also comprises:
Described C-AP determines that the source address of carrying in described uplink frame or destination address are present in the cooperation list of described C-AP; Or
Described C-AP determines that the mark of the mark of the management entity that described uplink frame is carried and the management entity belonging to described C-AP matches.
14. methods as described in claim 12 or 13, it is characterized in that, described AP carries out RUT process to described uplink frame, specifically comprises:
Described A-AP and described C-AP judges whether described uplink frame receives successfully;
If receive successfully, described uplink frame is transmitted to the management entity belonging to described A-AP and described C-AP by described A-AP or described C-AP.
15. methods as described in claim 12 or 13, it is characterized in that, when described uplink frame comprises multiple burst, described AP carries out RUT process to described uplink frame, specifically comprises:
Described multiple burst is transmitted to the management entity belonging to described A-AP and described C-AP by described A-AP and described C-AP; Or
Described A-AP and described C-AP verifies described multiple burst;
The correct burst of verification is transmitted to the management entity belonging to described A-AP and described C-AP by described A-AP and described C-AP.
16. methods as described in claim 12 or 13, it is characterized in that, described AP carries out RUT process to described uplink frame, specifically comprises:
The received signal strength indicator RSSI of described A-AP and described C-AP by the uplink frame of not decoding and when receiving described uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to the management entity belonging to described A-AP and described C-AP; Wherein, described uplink frame of not decoding is the described uplink frame value before channel decoding that described A-AP and described C-AP receive.
17. methods as described in any one of claim 12-16, is characterized in that, before the uplink frame that described access point AP receiving station STA sends, described method also comprises:
Described A-AP receives the request message for setting up robust uplink RUT that described STA sends;
Described A-AP sends cooperation request message to described C-AP;
Described A-AP receives the cooperation response message that described C-AP sends;
Described A-AP sends response message to described STA.
18. methods as claimed in claim 17, is characterized in that, comprise the first multicast address, the MAC address of described STA or the MAC address of described A-AP in described cooperation request message; Described first multicast address is specially the destination address of described uplink frame.
19. methods as claimed in claim 18, it is characterized in that, described method also comprises:
The MAC Address of described first multicast address, described STA or the MAC Address of described A-AP are recorded in cooperation list by described C-AP.
20. methods as described in any one of claim 12-17, it is characterized in that, described method also comprises:
The MAC address of described A-AP is recorded in cooperation list by described C-AP.
21. methods as described in any one of claim 12-20, it is characterized in that, after described AP carries out RUT process to described uplink frame, described method also comprises:
Described A-AP sends the acknowledge message being used to indicate described uplink frame and being correctly received after short interFrameGap SIFS to described STA; Or
A-AP and/or C-AP of the described uplink frame of all correct receptions sends to described STA the acknowledge message being used to indicate described uplink frame and being correctly received after short interFrameGap SIFS simultaneously; Or
Described A-AP and/or described C-AP sends the acknowledge message being used to indicate described uplink frame and being correctly received after obtaining media delivery chance to described STA.
22. 1 kinds of ascending transmission methods, is characterized in that, comprising:
Management entity receives at least one duplicate of the uplink frame from site STA that association access point A-AP and/or cooperation access point C-AP forwards; Described A-AP is the access point associated with described STA, described C-AP is the access point having cooperation relation with described A-AP, robust uplink RUT indication information is comprised in described uplink frame, and described RUT indication information is the first value, described RUT indication information represents the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with described A-AP when getting the first value, and does RUT process to described uplink frame;
Described management entity at least one duplicate to described uplink frame carries out merging treatment.
23. methods as claimed in claim 22, is characterized in that, described management entity at least one duplicate to described uplink frame carries out merging treatment, specifically comprises:
When at least one duplicate described be decoded media access control MAC layer data and containing many bursts time, the correct arbitrary duplicate of described management entity selection check is as merging frame; Or
When described uplink frame comprises multiple burst, the multiple burst duplicates of described management entity to each burst verify respectively, using the amalgamation result of burst duplicate correct for verification as described each burst; Or
When at least one duplicate described is when not carrying out the duplicate of channel-decoding, described management entity processes according to ad hoc rules by turn at least one duplicate described, obtains and merges frame.
24. 1 kinds of site STA, is characterized in that, comprising:
Processing unit, for generating uplink frame, described uplink frame comprises robust uplink RUT indication information, described RUT indication information represents the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with described A-AP when getting the first value, and does RUT process to described uplink frame; Described RUT indication information represents when getting the second value that the association access point A-AP only associated with described STA receives described uplink frame and does non-RUT process to described uplink frame;
First transmitting element, for sending described uplink frame.
25. STA as claimed in claim 24, is characterized in that,
Described RUT indication information, also for the probability that the uplink frame obtained before described uplink frame is correctly received by described A-AP, when described probability is greater than first threshold, is set to described second value by described processing unit; And/or
Described RUT indication information, also for the probability that the uplink frame obtained before described uplink frame is correctly received by described A-AP, when described probability is less than Second Threshold, is set to described first value by described processing unit.
26. STA as claimed in claim 24, it is characterized in that, described STA also comprises the first receiving element,
The indication information that described first receiving element sends for receiving described A-AP; Described indication information is used to indicate described STA and whether opens RUT transmission mode;
Described processing unit is also for being at least set to described first value or described second value according to described indication information by described RUT indication information.
27. STA as claimed in claim 26, is characterized in that, described indication information is arranged in physics head targeting sequencing or the media access control MAC head of the downlink frame that described A-AP sends to described STA.
28. STA as claimed in claim 26, is characterized in that, described RUT indication information and described indication information utilize the identical indicating bit in the physics head targeting sequencing of transmission frame to represent.
29. STA as described in any one of claim 24-28, it is characterized in that, described RUT indication information is arranged in the physics head targeting sequencing of described uplink frame.
30. STA as described in any one of claim 24-29, it is characterized in that, described STA, described A-AP and described C-AP are managed by same management entity; Described A-AP is associated with described STA, and described C-AP is not associated with described STA.
31. STA as described in any one of claim 24-30, it is characterized in that, described STA also comprises:
Second transmitting element, for sending the request message for setting up robust uplink RUT to described A-AP;
Second receiving element, for receiving the response message that described A-AP sends.
32. STA as claimed in claim 31, is characterized in that, when described response message indicates described RUT immediately built, comprise the first multicast address in described response message; Described first multicast address is the destination address of described uplink frame, and described first multicast address is used for: by described first multicast address, described C-AP can determine whether described STA is validated user.
33. STA as described in any one of claim 24-31, it is characterized in that, the source address of described uplink frame is the MAC address of described STA, and destination address is MAC address or first multicast address of described A-AP; Described first multicast address is used for: by described first multicast address, described C-AP can determine whether described STA is validated user.
34. STA as described in any one of claim 24-31, it is characterized in that, described uplink frame comprises the identification information of the management entity belonging to described A-AP.
35. 1 kinds of access point AP, is characterized in that, comprising:
Receiving element, for the uplink frame that receiving station STA sends, comprises robust uplink RUT indication information in described uplink frame;
Processing unit, for when described RUT indication information gets the first value, carries out RUT process to described uplink frame; Wherein, described AP comprises the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation with described A-AP.
36. AP as claimed in claim 35, is characterized in that, described processing unit also for: determine that the source address of carrying in described uplink frame or destination address are present in the cooperation list of described C-AP; Or, determine that the mark of the mark of the management entity that described uplink frame is carried and the management entity belonging to described C-AP matches.
37. AP as described in claim 35 or 36, is characterized in that, described processing unit specifically for: judge whether described uplink frame receives successfully; If receive successfully, described uplink frame is transmitted to the management entity belonging to described A-AP and described C-AP.
38. AP as described in claim 35 or 36, is characterized in that, when described uplink frame comprises multiple burst, described processing unit specifically for: described multiple burst is transmitted to the management entity belonging to described A-AP and described C-AP; Or
Described multiple burst is verified;
The correct burst of verification is transmitted to the management entity belonging to described A-AP and described C-AP.
39. AP as described in claim 35 or 36, it is characterized in that, described processing unit specifically for: the received signal strength indicator RSSI by the uplink frame of not decoding and when receiving described uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to the management entity belonging to described A-AP and described C-AP; Wherein, described uplink frame of not decoding is the described uplink frame value before channel decoding that described receiving element receives.
40. AP as described in any one of claim 35-39, it is characterized in that, when described AP is specially described A-AP, described AP also comprises transmitting element,
Described receiving element is also for receiving the request message for setting up robust uplink RUT that described STA sends;
Described transmitting element is used for sending cooperation request message to described C-AP;
Described receiving element is also for receiving the cooperation response message that described C-AP sends;
Described transmitting element is also for sending response message to described STA.
41. AP as described in any one of claim 35-40, it is characterized in that, when described AP is specially C-AP, described processing unit is concrete also for the MAC address of the first multicast address, described STA or the MAC address of described A-AP being recorded in cooperation list.
42. AP as described in any one of claim 35-41, it is characterized in that, described AP also comprises transmitting element,
Described transmitting element specifically for: after short interFrameGap SIFS, send the acknowledge message being used to indicate described uplink frame and being correctly received to described STA; Or
Send the acknowledge message being used to indicate described uplink frame and being correctly received to described STA after obtaining media delivery chance.
43. 1 kinds of communication systems, is characterized in that, comprising:
Association access point A-AP, for the uplink frame that receiving station STA sends, comprises robust uplink RUT indication information in described uplink frame; Described A-AP is the association access point of described STA;
Cooperation access point C-AP, for receiving described uplink frame, described C-AP is the access point having cooperation relation with described A-AP;
Wherein, when described RUT indication information gets the first value, described A-AP and described C-AP is all for carrying out RUT process to described uplink frame.
44. communication systems as claimed in claim 43, is characterized in that, when described RUT indication information gets the first value, described C-AP also for:
Determine that the source address of carrying in described uplink frame or destination address are present in the cooperation list of described C-AP; Or
Determine that the mark of the mark of the management entity that described uplink frame is carried and the management entity belonging to described C-AP matches.
45. communication systems as described in claim 43 or 44, is characterized in that, described A-AP and described C-AP specifically for: judge whether described uplink frame receives successfully; If receive successfully, described uplink frame is transmitted to the management entity belonging to described A-AP and described C-AP.
46. communication systems as described in claim 43 or 44, is characterized in that, when described uplink frame comprises multiple burst, described A-AP and described C-AP specifically for:
Described multiple burst is transmitted to the management entity belonging to described A-AP and described C-AP; Or
Described multiple burst is verified;
The correct burst of verification is transmitted to the management entity belonging to described A-AP and described C-AP.
47. communication systems as described in claim 43 or 44, it is characterized in that, described A-AP and described C-AP specifically for: the received signal strength indicator RSSI by the uplink frame of not decoding and when receiving described uplink frame and/or Signal Interference and Noise Ratio SINR is transmitted to the management entity belonging to described A-AP and described C-AP; Wherein, described uplink frame of not decoding is the described uplink frame value before channel decoding that described A-AP and described C-AP receive.
48. communication systems as described in any one of claim 43-47, is characterized in that, described A-AP is also for receiving the request message for setting up robust uplink RUT that described STA sends; And send cooperation request message to described C-AP; Also for receiving the cooperation response message that described C-AP sends; And send response message to described STA.
49. communication systems as claimed in claim 48, is characterized in that, comprise the first multicast address, the MAC address of described STA or the MAC address of described A-AP in described cooperation request message; Described first multicast address is specially the destination address of described uplink frame.
50. communication systems as claimed in claim 49, is characterized in that, described C-AP is also for being recorded in the described MAC Address of described first multicast address, described STA or the MAC Address of described A-AP in cooperation list.
51. communication systems as described in any one of claim 43-49, is characterized in that, described C-AP is also for being recorded in the MAC address of described A-AP in cooperation list.
52. communication systems as described in any one of claim 43-51, is characterized in that, when described uplink frame is correctly received,
Described A-AP also for sending the acknowledge message being used to indicate described uplink frame and being correctly received after short interFrameGap SIFS to described STA; Or
Described A-AP and/or C-AP of the described uplink frame of all correct receptions also for sending to described STA the acknowledge message being used to indicate described uplink frame and being correctly received simultaneously after short interFrameGap SIFS; Or
Described A-AP and/or described C-AP also for sending the acknowledge message being used to indicate described uplink frame and being correctly received after obtaining media delivery chance to described STA.
53. communication systems as described in any one of claim 43-52, it is characterized in that, described communication system also comprises:
Management entity, for receiving at least one duplicate of the described uplink frame that described A-AP and/or described C-AP forwards; And merging treatment is carried out at least one duplicate of described uplink frame; Wherein, described A-AP and described C-AP is managed by described management entity.
54. communication systems as claimed in claim 53, is characterized in that, described management entity specifically for:
When at least one duplicate described be decoded media access control MAC layer data and containing many bursts time, the correct arbitrary duplicate of selection check is as merging frame; Or
When described uplink frame comprises multiple burst, multiple burst duplicates of each burst are verified respectively, using the amalgamation result of burst duplicate correct for verification as described each burst; Or
When at least one duplicate described is when not carrying out the duplicate of channel-decoding, at least one duplicate described is processed by turn according to ad hoc rules, obtain and merge frame.
55. 1 kinds of management entities, is characterized in that, comprising:
Receiving element, for receiving at least one duplicate of the uplink frame from site STA that association access point A-AP and/or cooperation access point C-AP forwards; Described A-AP is the access point associated with described STA, described C-AP is the access point having cooperation relation with described A-AP, robust uplink RUT indication information is comprised in described uplink frame, and described RUT indication information is the first value, described RUT indication information represents the association access point A-AP that associates with described STA and has the access point C-AP that cooperates of cooperation relation all to receive described uplink frame with described A-AP when getting the first value, and does RUT process to described uplink frame;
Processing unit, for carrying out merging treatment at least one duplicate of described uplink frame.
56. management entities as claimed in claim 55, is characterized in that, described processing unit specifically for:
When at least one duplicate described be decoded media access control MAC layer data and containing many bursts time, the correct arbitrary duplicate of selection check is as merging frame; Or
When described uplink frame comprises multiple burst, multiple burst duplicates of each burst are verified respectively, using the amalgamation result of burst duplicate correct for verification as described each burst; Or
When at least one duplicate described is when not carrying out the duplicate of channel-decoding, at least one duplicate described is processed by turn according to ad hoc rules, obtain and merge frame.
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