CN109548151A - Communication means, device, access point apparatus and the site apparatus of WLAN - Google Patents

Communication means, device, access point apparatus and the site apparatus of WLAN Download PDF

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Publication number
CN109548151A
CN109548151A CN201710867044.8A CN201710867044A CN109548151A CN 109548151 A CN109548151 A CN 109548151A CN 201710867044 A CN201710867044 A CN 201710867044A CN 109548151 A CN109548151 A CN 109548151A
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China
Prior art keywords
site apparatus
frame
seeervice cycle
wlan
communication channel
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CN201710867044.8A
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Chinese (zh)
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CN109548151B (en
Inventor
董贤东
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Meizu Technology Co Ltd
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Meizu Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The present invention provides a kind of communication means of WLAN, device, access point apparatus and site apparatus, wherein, the communication means of WLAN includes: after the secondary communication interface for detecting associated first site apparatus enters periodical suspend mode, and the seeervice cycle of the first site apparatus access principal communication channel has been distributed in storage；The first management message frame is generated, the release again comprising the seeervice cycle indicates information in the first management message；Broadcast transmission first manages message frame to the second site apparatus for being in wake mode, indicates information access principal communication channel according to the release again of seeervice cycle in the second site apparatus with instruction.According to the technical solution of the present invention, the availability of frequency spectrum and data throughout are improved.

Description

Communication means, device, access point apparatus and the site apparatus of WLAN
Technical field
The present invention relates to technical field of communication network, communication means, one kind in particular to a kind of WLAN The communication device of WLAN, a kind of access point apparatus and a kind of site apparatus.
Background technique
In July, 2016, IEEE (Institute of Electrical and Electronic Engineers, electricity Gas and Electronic Engineering Association) 802.11 set up next-generation Wi-Fi (Wireless Fidelity, Wireless Fidelity) technology Study group WUR (Wake up Receiver), i.e. IEEE (Institute of Electrical and Electronic Engineers, Institute of Electrical and Electronics Engineers) 802.11ba, in terms of being mainly used in Internet of Things, in order to maximum to the greatest extent The power consumption of equipment may be saved.
A kind of wakeup message (wake up) frame is defined in IEEE 802.11ba standard, main purpose is for calling out Wake up the principal communication interface of communication equipment, i.e. communication equipment passes through time communication interface and receives wake up frame, needed for power consumption it is little It in 1mw, is in for the state of being waken up always relative to the principal communication interface of control communication equipment, i.e., principal communication interface, which is in, stops Dormancy state reduces the power consumption of communication equipment.
Specifically, in WUR mode, (secondary communication interface is constantly in wake states or place to the principal communication interface of site apparatus In periodical wake states) under enter dormant state, exit principal communication channel to reduce power consumption, set to further decrease website Standby power consumption, the secondary communication interface that site apparatus can be set also supports periodical suspend mode, at this point, the master of site apparatus is logical Letter interface is constantly in dormant state, and site apparatus does not receive any downstream message frame, therefore, site apparatus and access point The seeervice cycle that equipment consults will be suspended, and if the seeervice cycle being suspended mustn't go to re-using, it will cause frequency spectrum The significant wastage of resource.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, it is an object of the present invention to provide a kind of communication means of WLAN.
Yet another object of the invention is that providing a kind of communication device of WLAN.
Yet another object of the invention is that providing a kind of access point apparatus.
Yet another object of the invention is that providing a kind of site apparatus.
To achieve the goals above, the technical solution of the first aspect of the present invention provides a kind of leading to for WLAN Letter method, comprising: after the secondary communication interface for detecting associated first site apparatus enters periodical suspend mode, storage The seeervice cycle of the first site apparatus access principal communication channel is distributed to；Generate the first management message frame, the first management message In comprising the seeervice cycle release again indicate information；Broadcast transmission first manages message frame to the second website for being in wake mode Equipment indicates information access principal communication channel according to the release again of seeervice cycle in the second site apparatus with instruction.
In the technical scheme, it after entering periodical suspend mode by the secondary communication interface in the first site apparatus, deposits The allocated seeervice cycle is stored up, for the first site apparatus, the above-mentioned seeervice cycle is to be suspended, therefore, by above-mentioned service Period is reassigned to the second site apparatus in wake mode, can effectively improve the availability of frequency spectrum and data throughout.
Wherein, when the above-mentioned seeervice cycle refers to one section that the principal communication interface of site apparatus and access point apparatus are negotiated Long, site apparatus carries out data communication by its principal communication interface and access point apparatus in this section of duration.
Specifically, the first site apparatus supports WUR mode and secondary communication interface supports periodical suspend mode, in first stop Before point device enters WUR mode, negotiate to determine the seeervice cycle with access point apparatus, still, the first site apparatus enters WUR mould It can not then be communicated within the seeervice cycle after formula, and the second site apparatus is assigned the above-mentioned seeervice cycle under wake states.
It is worth being also possible to include multiple websites it is emphasized that the second site apparatus can be a site apparatus The grouping of equipment, the second site apparatus can support WUR mode or not support WUR mode, still, be reallocated service week When the phase, the secondary communication interface of the second site apparatus is in wake states.
Wherein, access point apparatus can determine that next communication interface enters according to the upstream message frame that the first site apparatus is fed back Periodical dormant state, for example, the first site apparatus feeding back confirmation message frame after the caching downlink data frame for having received unicast To access point apparatus, for another example, the first site apparatus sends WUR claim frame to access point apparatus, and access point apparatus feeds back WUR response Frame is to indicate that the first site apparatus enters WUR mode, and above-mentioned WUR mode is main communication interface in a dormant state and secondary communication connects Mouth is in periodical dormant state.
In addition, principal communication interface and time communication interface can be two transmitting-receiving ports of same receiver, it is also possible to two A separately positioned receiver.
In the above-mentioned technical solutions, it is preferable that the communication means of WLAN further include: the first management message of generation When frame is beacon frame, the principal communication interface of broadcast beacon frame to the second site apparatus for being associated with and being in wake mode, with instruction Principal communication interface indicates information access principal communication channel according to the release again of seeervice cycle.
In the technical scheme, it is beacon frame (Beacon frame) by setting the first management message frame, and broadcasts to second The principal communication interface of site apparatus, wherein the instruction information of release again of seeervice cycle, i.e. access point apparatus are carried in beacon frame After the secondary communication interface for determining the first site apparatus enters periodical dormant state, recycles the seeervice cycle and be reassigned to place In the second site apparatus of wake states, the utilization rate of seeervice cycle is improved, reduces the waste of frequency spectrum resource.
In any of the above-described technical solution, it is preferable that the seeervice cycle include access principal communication channel at the beginning of and At the beginning of finish time or seeervice cycle include access principal communication channel and access duration, wherein the access of seeervice cycle Shi Changwei is carried on the Duan Shichang in contention-free period parameter and/or competing cycle parameter.
In the technical scheme, at the beginning of by the setting seeervice cycle including access principal communication channel at the end of It carves, or including start time and access duration, the second site apparatus has been explicitly indicated in start time and has accessed principal communication channel, has mentioned The reliability that the seeervice cycle redistributes is risen.
Wherein, contention-free period parameter (Contention-Free Period, abbreviation CFP) is carried in beacon frame, In CFP (contention free period), the domain CFP of all downlink data frames be set to 32768 (namely the 15th is binary " 1 ", Remaining position is all binary " 0 ") because this value is sufficiently large, so that it may prevent those from not receiving what CFP started The site apparatus of Beacon (beacon) frame will not go to send information within the sufficiently long time, would not also interfere the letter between CFP Breath sends and receives.
In addition, site apparatus can in the instruction duration of competing cycle parameter (Contention Period, abbreviation CP) According to EDCA (Enhanced Distributed Channel Access, the distributed channel access agreement of enhancing) mechanism Contention access principal communication channel, then the CP parameter competition that the second website can be broadcasted according to access point apparatus is linked into communication In channel.
In any of the above-described technical solution, it is preferable that the communication means of WLAN further include: detecting second After site apparatus accesses principal communication channel, data cached frame is sent to the second site apparatus；Receive the second site apparatus in response to The confirmation message frame of the data cached frame feedback of last frame.
In the technical scheme, by sending unicast, multicast after detecting that the second site apparatus accesses principal communication channel Or the data cached frame of broadcast improves the utilization rate of seeervice cycle, reduces the waste of frequency spectrum resource to the second site apparatus, In addition, by the second site apparatus of setting in response to the data cached frame feeding back confirmation message frame of last frame, so that access point is set It is standby to determine that data cached frame is sent, improve the reliability of the communication interaction of WLAN.
In any of the above-described technical solution, it is preferable that the communication means of WLAN further include: detecting first It is raw after site apparatus enters the access request frame sent after wake mode or the confirmation message frame for receiving the second site apparatus feedback At the second management message frame, the recycling comprising the seeervice cycle indicates information in the second management message frame；Send the second management message Frame is to the second site apparatus, to indicate that the second site apparatus indicates that information exits principal communication channel according to the recycling of seeervice cycle； It generates and sends third and manages message frame to the first site apparatus, third manages the recovery in message frame comprising the seeervice cycle and indicates Information, to indicate that the first site apparatus indicates that information accesses principal communication channel again according to the recovery of seeervice cycle.
In the technical scheme, disappeared by after detecting that the first site apparatus enters wake mode, generating the second management Breath frame is simultaneously sent to the second site apparatus, indicates that the second site apparatus withdraws the seeervice cycle in time, and by generating third pipe Reason message frame is simultaneously sent to the first site apparatus, to indicate that the first site apparatus accesses principal communication channel again, in service week Restore the operation such as, positioning synchronous with access point apparatus and Signalling exchange in phase.
For example, so-called first site apparatus enters wake mode and refers to that its principal communication interface and time communication interface enter Wake states, the first site apparatus sends polling request frame after exiting WUR mode, to access point apparatus, slow with request The downlink data frame deposited, then access point apparatus can determine that the first site apparatus enters revival mould according to the polling request frame of acquisition Formula, access point apparatus determine the seeervice cycle of the corresponding storage of the first site apparatus, and the upper of the second site apparatus is distributed in recycling The seeervice cycle is stated, and is reassigned to first stop point device.
The technical solution of the second aspect of the present invention, it is also proposed that a kind of communication means of WLAN, comprising: receive First management message frame, the first release again for managing in message comprising the seeervice cycle indicate information；According to releasing for seeervice cycle again Put instruction information access principal communication channel, wherein the first site apparatus is assigned the seeervice cycle before entering periodical suspend mode, And principal communication channel is accessed according to the seeervice cycle.
In the technical scheme, the second site apparatus can be delayed in time by receiving the first management message frame Seeervice cycle, fast response time specifically enters periodical suspend mode by the secondary communication interface in the first site apparatus Afterwards, the allocated seeervice cycle is stored, for the first site apparatus, the above-mentioned seeervice cycle is to be suspended, therefore, will be above-mentioned Seeervice cycle is reassigned to the second site apparatus in wake mode, can effectively improve the availability of frequency spectrum and data throughput Amount.
Wherein, when the above-mentioned seeervice cycle refers to one section that the principal communication interface of site apparatus and access point apparatus are negotiated Long, site apparatus carries out data communication by its principal communication interface and access point apparatus in this section of duration.
In any of the above-described technical solution, it is preferable that the communication means of WLAN includes: the first management of generation When message frame is beacon frame, the principal communication interface beacon frame of association and the second site apparatus in wake mode；According to The seeervice cycle of the idle instruction of release again information instruction accesses principal communication channel, wherein the seeervice cycle includes access principal communication letter At the beginning of road and at the beginning of finish time or seeervice cycle include access principal communication channel and access duration.
In the technical scheme, the second site apparatus can be a site apparatus, be also possible to include that multiple websites are set Standby grouping, the second site apparatus can support WUR mode or not support WUR mode, still, be reallocated the seeervice cycle When, the secondary communication interface of the second site apparatus is in wake states.
In any of the above-described technical solution, it is preferable that the communication means of WLAN includes: in access principal communication letter Behind road, the data cached frame for passing through principal communication transmission is received；After receiving the data cached frame of last frame, feedback acknowledgment disappears Cease frame.
In the technical scheme, by the way that after detecting that the second site apparatus accesses principal communication channel, access point apparatus is logical The data cached frame of principal communication channel transmission unicast, multicast or broadcast is crossed to the second site apparatus, improves the benefit of seeervice cycle With rate, the waste of frequency spectrum resource is reduced, in addition, anti-in response to the data cached frame of last frame by the second site apparatus of setting Confirmation message frame is presented, allows access point apparatus to determine that data cached frame is sent, improves the communication of WLAN Interactive reliability.
In any of the above-described technical solution, it is preferable that the communication means of WLAN includes: in feeding back confirmation message After frame, the second management message frame is received, the recycling comprising the seeervice cycle indicates information in the second management message frame；According to service week The recycling instruction information of phase exits principal communication channel.
In the technical scheme, by after feeding back confirmation message frame, receiving the second management message frame, and according to service week The recycling instruction information of phase exits principal communication channel, after detecting that the first site apparatus enters wake mode, generates the second pipe Reason message frame is simultaneously sent to the second site apparatus, indicates that the second site apparatus withdraws the seeervice cycle in time, reduces data collision A possibility that generation.
A kind of technical solution of the third aspect of the present invention, it is also proposed that communication means of WLAN, comprising: by After periodical suspend mode carries out wake mode, access request frame is sent；Access point apparatus is received to send out in response to access request frame The third management message frame sent, third manage the recovery in message frame comprising the seeervice cycle and indicate information；According to the seeervice cycle Restore instruction information and access principal communication channel again, wherein the first site apparatus is assigned clothes before entering periodical suspend mode It is engaged in the period, and principal communication channel is accessed according to the seeervice cycle.
In the technical scheme, message frame is managed by the way that access request frame occurs and receives third, due to seeervice cycle quilt Storage is without redistributing the new seeervice cycle, therefore, greatly improves access efficiency, the first site apparatus of instruction is again Principal communication channel is accessed, and restores the operation such as, positioning synchronous with access point apparatus and Signalling exchange within the seeervice cycle.
In any of the above-described technical solution, it is preferable that a length of when the access of seeervice cycle to be carried on contention-free period ginseng A Duan Shichang in several and/or competing cycle parameter.
In the technical scheme, contention-free period parameter (Contention-Free Period, abbreviation CFP) is carried on letter It marks in frame, in CFP (contention free period), the domain CFP of all downlink data frames is set to 32768, and (namely the 15th is two " 1 " of system, remaining position are all binary " 0 ") because this value is sufficiently large, so that it may prevent those from not receiving The site apparatus of Beacon (beacon) frame that CFP starts will not go to send information within the sufficiently long time, would not also interfere Information between CFP sends and receives.
In addition, site apparatus can in the instruction duration of competing cycle parameter (Contention Period, abbreviation CP) According to EDCA (Enhanced Distributed Channel Access, the distributed channel access agreement of enhancing) mechanism Contention access principal communication channel, then the CP parameter competition that the second website can be broadcasted according to access point apparatus is linked into communication In channel.
A kind of technical solution of the fourth aspect of the present invention, it is also proposed that communication device of WLAN, comprising: storage Unit, after entering periodical suspend mode in the secondary communication interface for detecting associated first site apparatus, storage is Distribute to the seeervice cycle of the first site apparatus access principal communication channel；Generation unit, for generating the first management message frame, the The release again comprising the seeervice cycle indicates information in one management message；Transmission unit manages message frame for broadcast transmission first To the second site apparatus for being in wake mode, indicate to believe according to the release again of seeervice cycle in the second site apparatus with instruction Breath access principal communication channel.
In the technical scheme, it after entering periodical suspend mode by the secondary communication interface in the first site apparatus, deposits The allocated seeervice cycle is stored up, for the first site apparatus, the above-mentioned seeervice cycle is to be suspended, therefore, by above-mentioned service Period is reassigned to the second site apparatus in wake mode, can effectively improve the availability of frequency spectrum and data throughout.
Wherein, when the above-mentioned seeervice cycle refers to one section that the principal communication interface of site apparatus and access point apparatus are negotiated Long, site apparatus carries out data communication by its principal communication interface and access point apparatus in this section of duration.
Specifically, the first site apparatus supports WUR mode and secondary communication interface supports periodical suspend mode, in first stop Before point device enters WUR mode, negotiate to determine the seeervice cycle with access point apparatus, still, the first site apparatus enters WUR mould It can not then be communicated within the seeervice cycle after formula, and the second site apparatus is assigned the above-mentioned seeervice cycle under wake states.
It is worth being also possible to include multiple websites it is emphasized that the second site apparatus can be a site apparatus The grouping of equipment, the second site apparatus can support WUR mode or not support WUR mode, still, be reallocated service week When the phase, the secondary communication interface of the second site apparatus is in wake states.
Wherein, access point apparatus can determine that next communication interface enters according to the upstream message frame that the first site apparatus is fed back Periodical dormant state, for example, the first site apparatus feeding back confirmation message frame after the caching downlink data frame for having received unicast To access point apparatus, for another example, the first site apparatus sends WUR claim frame to access point apparatus, and access point apparatus feeds back WUR response Frame is to indicate that the first site apparatus enters WUR mode, and above-mentioned WUR mode is main communication interface in a dormant state and secondary communication connects Mouth is in periodical dormant state.
In addition, principal communication interface and time communication interface can be two transmitting-receiving ports of same receiver, it is also possible to two A separately positioned receiver.
In any of the above-described technical solution, it is preferable that transmission unit is also used to: being in the first management message frame of generation When beacon frame, the principal communication interface of broadcast beacon frame to the second site apparatus for being associated with and being in wake mode is main logical with instruction Believe that interface indicates information access principal communication channel according to the release again of seeervice cycle.
In the technical scheme, it is beacon frame (Beacon frame) by setting the first management message frame, and broadcasts to second The principal communication interface of site apparatus, wherein the instruction information of release again of seeervice cycle, i.e. access point apparatus are carried in beacon frame After the secondary communication interface for determining the first site apparatus enters periodical dormant state, recycles the seeervice cycle and be reassigned to place In the second site apparatus of wake states, the utilization rate of seeervice cycle is improved, reduces the waste of frequency spectrum resource.
In any of the above-described technical solution, it is preferable that the seeervice cycle include access principal communication channel at the beginning of and At the beginning of finish time or seeervice cycle include access principal communication channel and access duration, wherein the access of seeervice cycle Shi Changwei is carried on the Duan Shichang in contention-free period parameter and/or competing cycle parameter.
In the technical scheme, at the beginning of by the setting seeervice cycle including access principal communication channel at the end of It carves, or including start time and access duration, the second site apparatus has been explicitly indicated in start time and has accessed principal communication channel, has mentioned The reliability that the seeervice cycle redistributes is risen.
Wherein, contention-free period parameter (Contention-Free Period, abbreviation CFP) is carried in beacon frame, In CFP (contention free period), the domain CFP of all downlink data frames be set to 32768 (namely the 15th is binary " 1 ", Remaining position is all binary " 0 ") because this value is sufficiently large, so that it may prevent those from not receiving what CFP started The site apparatus of Beacon (beacon) frame will not go to send information within the sufficiently long time, would not also interfere the letter between CFP Breath sends and receives.
In addition, site apparatus can in the instruction duration of competing cycle parameter (Contention Period, abbreviation CP) According to EDCA (Enhanced Distributed Channel Access, the distributed channel access agreement of enhancing) mechanism Contention access principal communication channel, then the CP parameter competition that the second website can be broadcasted according to access point apparatus is linked into communication In channel.
In any of the above-described technical solution, it is preferable that transmission unit is also used to: detecting the access of the second site apparatus After principal communication channel, data cached frame is sent to the second site apparatus；The communication device of WLAN further include: receive single Member, for receiving the second site apparatus in response to the confirmation message frame of the data cached frame feedback of last frame.
In the technical scheme, by sending unicast, multicast after detecting that the second site apparatus accesses principal communication channel Or the data cached frame of broadcast improves the utilization rate of seeervice cycle, reduces the waste of frequency spectrum resource to the second site apparatus, In addition, by the second site apparatus of setting in response to the data cached frame feeding back confirmation message frame of last frame, so that access point is set It is standby to determine that data cached frame is sent, improve the reliability of the communication interaction of WLAN.
In any of the above-described technical solution, it is preferable that transmission unit is also used to: detect the first site apparatus into After entering the access request frame sent after wake mode or the confirmation message frame for receiving the second site apparatus feedback, the second management is generated Message frame, the second recycling for managing in message frame comprising the seeervice cycle indicate information；Transmission unit is also used to: sending the second management Message frame is to the second site apparatus, to indicate that the second site apparatus indicates that information exits principal communication letter according to the recycling of seeervice cycle Road；Generation unit is also used to: being generated and sent third and is managed message frame to the first site apparatus, third, which manages in message frame, includes The recovery of seeervice cycle indicates information, to indicate that the first site apparatus indicates that information accesses master again according to the recovery of seeervice cycle Communication channel.
In the technical scheme, disappeared by after detecting that the first site apparatus enters wake mode, generating the second management Breath frame is simultaneously sent to the second site apparatus, indicates that the second site apparatus withdraws the seeervice cycle in time, and by generating third pipe Reason message frame is simultaneously sent to the first site apparatus, to indicate that the first site apparatus accesses principal communication channel again, in service week Restore the operation such as, positioning synchronous with access point apparatus and Signalling exchange in phase.
For example, so-called first site apparatus enters wake mode and refers to that its principal communication interface and time communication interface enter Wake states, the first site apparatus sends polling request frame after exiting WUR mode, to access point apparatus, slow with request The downlink data frame deposited, then access point apparatus can determine that the first site apparatus enters revival mould according to the polling request frame of acquisition Formula, access point apparatus determine the seeervice cycle of the corresponding storage of the first site apparatus, and the upper of the second site apparatus is distributed in recycling The seeervice cycle is stated, and is reassigned to first stop point device.
The technical solution of the fifth aspect of the present invention, it is also proposed that a kind of access point apparatus, comprising: such as the skill of fourth aspect The communication device of WLAN described in art scheme.
A kind of technical solution of the sixth aspect of the present invention, it is also proposed that communication device of WLAN, comprising: communication Unit, for receiving the first management message frame, the release again comprising the seeervice cycle indicates information in the first management message；Communication unit Member is also used to: indicating information access principal communication channel according to the release again of seeervice cycle, wherein the first site apparatus enters the period Property suspend mode before be assigned the seeervice cycle, and according to the seeervice cycle access principal communication channel.
In the technical scheme, the second site apparatus can be delayed in time by receiving the first management message frame Seeervice cycle, fast response time specifically enters periodical suspend mode by the secondary communication interface in the first site apparatus Afterwards, the allocated seeervice cycle is stored, for the first site apparatus, the above-mentioned seeervice cycle is to be suspended, therefore, will be above-mentioned Seeervice cycle is reassigned to the second site apparatus in wake mode, can effectively improve the availability of frequency spectrum and data throughput Amount.
Wherein, when the above-mentioned seeervice cycle refers to one section that the principal communication interface of site apparatus and access point apparatus are negotiated Long, site apparatus carries out data communication by its principal communication interface and access point apparatus in this section of duration.
In any of the above-described technical solution, it is preferable that the communication device of WLAN includes: generation unit, is used for When the first management message frame generated is beacon frame, the principal communication interface of association and the second site apparatus in wake mode is connect Receive beacon frame；Communication unit is also used to: indicating information access principal communication channel according to the release again of seeervice cycle, wherein service At the beginning of period includes access principal communication channel and finish time or seeervice cycle include the beginning for accessing principal communication channel Moment and access duration.
In the technical scheme, the second site apparatus can be a site apparatus, be also possible to include that multiple websites are set Standby grouping, the second site apparatus can support WUR mode or not support WUR mode, still, be reallocated the seeervice cycle When, the secondary communication interface of the second site apparatus is in wake states.
In any of the above-described technical solution, it is preferable that communication unit is also used to: after accessing principal communication channel, receiving Pass through the data cached frame of principal communication transmission；Communication unit is also used to: after receiving the data cached frame of last frame, feedback Confirmation message frame.
In the technical scheme, by the way that after detecting that the second site apparatus accesses principal communication channel, access point apparatus is logical The data cached frame of principal communication channel transmission unicast, multicast or broadcast is crossed to the second site apparatus, improves the benefit of seeervice cycle With rate, the waste of frequency spectrum resource is reduced, in addition, anti-in response to the data cached frame of last frame by the second site apparatus of setting Confirmation message frame is presented, allows access point apparatus to determine that data cached frame is sent, improves the communication of WLAN Interactive reliability.
In any of the above-described technical solution, it is preferable that communication unit is also used to: after feeding back confirmation message frame, receiving Second management message frame, the second recycling for managing in message frame comprising the seeervice cycle indicate information；Communication unit is also used to: according to The recycling instruction information of seeervice cycle exits principal communication channel.
In the technical scheme, by after feeding back confirmation message frame, receiving the second management message frame, and according to service week The recycling instruction information of phase exits principal communication channel, after detecting that the first site apparatus enters wake mode, generates the second pipe Reason message frame is simultaneously sent to the second site apparatus, indicates that the second site apparatus withdraws the seeervice cycle in time, reduces data collision A possibility that generation.
The technical solution of the seventh aspect of the present invention, it is also proposed that a kind of site apparatus, comprising: such as the technology in terms of the 6th The communication device of WLAN described in scheme.
A kind of technical solution of the eighth aspect of the present invention, it is also proposed that communication device of WLAN, comprising: communication Unit, for sending access request frame after carrying out wake mode by periodical suspend mode；Communication unit is also used to: being received Access point apparatus manages message frame in response to the third that access request frame is sent, and it includes the seeervice cycle in message frame that third, which manages, Restore instruction information；Communication unit is also used to: indicate that information accesses principal communication channel again according to the recovery of seeervice cycle, In, the first site apparatus is assigned the seeervice cycle before entering periodical suspend mode, and accesses principal communication letter according to the seeervice cycle Road.
In the technical scheme, message frame is managed by the way that access request frame occurs and receives third, due to seeervice cycle quilt Storage is without redistributing the new seeervice cycle, therefore, greatly improves access efficiency, the first site apparatus of instruction is again Principal communication channel is accessed, and restores the operation such as, positioning synchronous with access point apparatus and Signalling exchange within the seeervice cycle.
In any of the above-described technical solution, it is preferable that a length of when the access of seeervice cycle to be carried on contention-free period ginseng A Duan Shichang in several and/or competing cycle parameter.
In the technical scheme, contention-free period parameter (Contention-Free Period, abbreviation CFP) is carried on letter It marks in frame, in CFP (contention free period), the domain CFP of all downlink data frames is set to 32768, and (namely the 15th is two " 1 " of system, remaining position are all binary " 0 ") because this value is sufficiently large, so that it may prevent those from not receiving The site apparatus of Beacon (beacon) frame that CFP starts will not go to send information within the sufficiently long time, would not also interfere Information between CFP sends and receives.
In addition, site apparatus can in the instruction duration of competing cycle parameter (Contention Period, abbreviation CP) According to EDCA (Enhanced Distributed Channel Access, the distributed channel access agreement of enhancing) mechanism Contention access principal communication channel, then the CP parameter competition that the second website can be broadcasted according to access point apparatus is linked into communication In channel.
The technical solution of the ninth aspect of the present invention, it is also proposed that a kind of site apparatus, comprising: such as the technology of eighth aspect The communication device of WLAN described in scheme.
Additional aspect and advantage of the invention will provide in following description section, will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:
Fig. 1 shows the schematic flow diagram of the communication means of WLAN according to an embodiment of the invention；
Fig. 2 shows the schematic flow diagrams of the communication means of WLAN according to another embodiment of the invention；
Fig. 3 shows the schematic flow diagram of the communication means of WLAN according to another embodiment of the invention；
Fig. 4 shows the schematic block diagram of the communication device of WLAN according to an embodiment of the invention；
Fig. 5 shows the schematic block diagram of the communication device of WLAN according to another embodiment of the invention；
Fig. 6 shows the schematic block diagram of the communication device of WLAN according to another embodiment of the invention；
Fig. 7 shows the schematic block diagram of access point apparatus according to an embodiment of the invention；
Fig. 8 shows the schematic block diagram of site apparatus according to an embodiment of the invention；
Fig. 9 shows the schematic block diagram of site apparatus according to another embodiment of the invention；
Figure 10 shows the setting side of the seeervice cycle of the communication plan of the WLAN of embodiment according to the present invention The schematic diagram of formula.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.
Fig. 1 shows the schematic flow diagram of the communication means of WLAN according to an embodiment of the invention.
As shown in Figure 1, the communication means of WLAN according to an embodiment of the invention, comprising: step S102, After the secondary communication interface for detecting associated first site apparatus enters periodical suspend mode, storage has distributed to first The seeervice cycle of site apparatus access principal communication channel；Step S104 generates the first management message frame, wraps in the first management message Release again containing the seeervice cycle indicates information；Step S106, broadcast transmission first manage message frame to being in the of wake mode Two site apparatus indicate information access principal communication channel according to the release again of seeervice cycle in the second site apparatus with instruction.
In the technical scheme, it after entering periodical suspend mode by the secondary communication interface in the first site apparatus, deposits The allocated seeervice cycle is stored up, for the first site apparatus, the above-mentioned seeervice cycle is to be suspended, therefore, by above-mentioned service Period is reassigned to the second site apparatus in wake mode, can effectively improve the availability of frequency spectrum and data throughout.
Wherein, when the above-mentioned seeervice cycle refers to one section that the principal communication interface of site apparatus and access point apparatus are negotiated Long, site apparatus carries out data communication by its principal communication interface and access point apparatus in this section of duration.
Specifically, the first site apparatus supports WUR mode and secondary communication interface supports periodical suspend mode, in first stop Before point device enters WUR mode, negotiate to determine the seeervice cycle with access point apparatus, still, the first site apparatus enters WUR mould It can not then be communicated within the seeervice cycle after formula, and the second site apparatus is assigned the above-mentioned seeervice cycle under wake states.
It is worth being also possible to include multiple websites it is emphasized that the second site apparatus can be a site apparatus The grouping of equipment, the second site apparatus can support WUR mode or not support WUR mode, still, be reallocated service week When the phase, the secondary communication interface of the second site apparatus is in wake states.
Wherein, access point apparatus can determine that next communication interface enters according to the upstream message frame that the first site apparatus is fed back Periodical dormant state, for example, the first site apparatus feeding back confirmation message frame after the caching downlink data frame for having received unicast To access point apparatus, for another example, the first site apparatus sends WUR claim frame to access point apparatus, and access point apparatus feeds back WUR response Frame is to indicate that the first site apparatus enters WUR mode, and above-mentioned WUR mode is main communication interface in a dormant state and secondary communication connects Mouth is in periodical dormant state.
In addition, principal communication interface and time communication interface can be two transmitting-receiving ports of same receiver, it is also possible to two A separately positioned receiver.
In the above-mentioned technical solutions, it is preferable that the communication means of WLAN further include: the first management message of generation When frame is beacon frame, the principal communication interface of broadcast beacon frame to the second site apparatus for being associated with and being in wake mode, with instruction Principal communication interface indicates information access principal communication channel according to the release again of seeervice cycle.
In the technical scheme, it is beacon frame (Beacon frame) by setting the first management message frame, and broadcasts to second The principal communication interface of site apparatus, wherein the instruction information of release again of seeervice cycle, i.e. access point apparatus are carried in beacon frame After the secondary communication interface for determining the first site apparatus enters periodical dormant state, recycles the seeervice cycle and be reassigned to place In the second site apparatus of wake states, the utilization rate of seeervice cycle is improved, reduces the waste of frequency spectrum resource.
In any of the above-described technical solution, it is preferable that the seeervice cycle include access principal communication channel at the beginning of and At the beginning of finish time or seeervice cycle include access principal communication channel and access duration, wherein the access of seeervice cycle Shi Changwei is carried on the Duan Shichang in contention-free period parameter and/or competing cycle parameter.
In the technical scheme, at the beginning of by the setting seeervice cycle including access principal communication channel at the end of It carves, or including start time and access duration, the second site apparatus has been explicitly indicated in start time and has accessed principal communication channel, has mentioned The reliability that the seeervice cycle redistributes is risen.
Wherein, contention-free period parameter (Contention-Free Period, abbreviation CFP) is carried in beacon frame, In CFP (contention free period), the domain CFP of all downlink data frames be set to 32768 (namely the 15th is binary " 1 ", Remaining position is all binary " 0 ") because this value is sufficiently large, so that it may prevent those from not receiving what CFP started The site apparatus of Beacon (beacon) frame will not go to send information within the sufficiently long time, would not also interfere the letter between CFP Breath sends and receives.
In addition, site apparatus can in the instruction duration of competing cycle parameter (Contention Period, abbreviation CP) According to EDCA (Enhanced Distributed Channel Access, the distributed channel access agreement of enhancing) mechanism Contention access principal communication channel, then the CP parameter competition that the second website can be broadcasted according to access point apparatus is linked into communication In channel.
In any of the above-described technical solution, it is preferable that the communication means of WLAN further include: detecting second After site apparatus accesses principal communication channel, data cached frame is sent to the second site apparatus；Receive the second site apparatus in response to The confirmation message frame of the data cached frame feedback of last frame.
In the technical scheme, by sending unicast, multicast after detecting that the second site apparatus accesses principal communication channel Or the data cached frame of broadcast improves the utilization rate of seeervice cycle, reduces the waste of frequency spectrum resource to the second site apparatus, In addition, by the second site apparatus of setting in response to the data cached frame feeding back confirmation message frame of last frame, so that access point is set It is standby to determine that data cached frame is sent, improve the reliability of the communication interaction of WLAN.
In any of the above-described technical solution, it is preferable that the communication means of WLAN further include: detecting first It is raw after site apparatus enters the access request frame sent after wake mode or the confirmation message frame for receiving the second site apparatus feedback At the second management message frame, the recycling comprising the seeervice cycle indicates information in the second management message frame；Send the second management message Frame is to the second site apparatus, to indicate that the second site apparatus indicates that information exits principal communication channel according to the recycling of seeervice cycle； It generates and sends third and manages message frame to the first site apparatus, third manages the recovery in message frame comprising the seeervice cycle and indicates Information, to indicate that the first site apparatus indicates that information accesses principal communication channel again according to the recovery of seeervice cycle.
In the technical scheme, disappeared by after detecting that the first site apparatus enters wake mode, generating the second management Breath frame is simultaneously sent to the second site apparatus, indicates that the second site apparatus withdraws the seeervice cycle in time, and by generating third pipe Reason message frame is simultaneously sent to the first site apparatus, to indicate that the first site apparatus accesses principal communication channel again, in service week Restore the operation such as, positioning synchronous with access point apparatus and Signalling exchange in phase.
For example, so-called first site apparatus enters wake mode and refers to that its principal communication interface and time communication interface enter Wake states, the first site apparatus sends polling request frame after exiting WUR mode, to access point apparatus, slow with request The downlink data frame deposited, then access point apparatus can determine that the first site apparatus enters revival mould according to the polling request frame of acquisition Formula, access point apparatus determine the seeervice cycle of the corresponding storage of the first site apparatus, and the upper of the second site apparatus is distributed in recycling The seeervice cycle is stated, and is reassigned to first stop point device.
Fig. 2 shows the schematic flow diagrams of the communication means of WLAN according to another embodiment of the invention.
As shown in Fig. 2, the communication means of WLAN according to another embodiment of the invention, comprising: step S202 receives the first management message frame, and the release again comprising the seeervice cycle indicates information in the first management message；Step S204, Information access principal communication channel is indicated according to the release again of seeervice cycle, wherein the first site apparatus enters periodical suspend mode mould It is assigned the seeervice cycle before formula, and principal communication channel is accessed according to the seeervice cycle.
In the technical scheme, the second site apparatus can be delayed in time by receiving the first management message frame Seeervice cycle, fast response time specifically enters periodical suspend mode by the secondary communication interface in the first site apparatus Afterwards, the allocated seeervice cycle is stored, for the first site apparatus, the above-mentioned seeervice cycle is to be suspended, therefore, will be above-mentioned Seeervice cycle is reassigned to the second site apparatus in wake mode, can effectively improve the availability of frequency spectrum and data throughput Amount.
In any of the above-described technical solution, it is preferable that the communication means of WLAN includes: the first management of generation When message frame is beacon frame, the principal communication interface beacon frame of association and the second site apparatus in wake mode；According to The seeervice cycle of the idle instruction of release again information instruction accesses principal communication channel, wherein the seeervice cycle includes access principal communication letter At the beginning of road and at the beginning of finish time or seeervice cycle include access principal communication channel and access duration.
Wherein, when the above-mentioned seeervice cycle refers to one section that the principal communication interface of site apparatus and access point apparatus are negotiated Long, site apparatus carries out data communication by its principal communication interface and access point apparatus in this section of duration.
In the technical scheme, the second site apparatus can be a site apparatus, be also possible to include that multiple websites are set Standby grouping, the second site apparatus can support WUR mode or not support WUR mode, still, be reallocated the seeervice cycle When, the secondary communication interface of the second site apparatus is in wake states.
In any of the above-described technical solution, it is preferable that the communication means of WLAN includes: in access principal communication letter Behind road, the data cached frame for passing through principal communication transmission is received；After receiving the data cached frame of last frame, feedback acknowledgment disappears Cease frame.
In the technical scheme, by the way that after detecting that the second site apparatus accesses principal communication channel, access point apparatus is logical The data cached frame of principal communication channel transmission unicast, multicast or broadcast is crossed to the second site apparatus, improves the benefit of seeervice cycle With rate, the waste of frequency spectrum resource is reduced, in addition, anti-in response to the data cached frame of last frame by the second site apparatus of setting Confirmation message frame is presented, allows access point apparatus to determine that data cached frame is sent, improves the communication of WLAN Interactive reliability.
In any of the above-described technical solution, it is preferable that the communication means of WLAN includes: in feeding back confirmation message After frame, the second management message frame is received, the recycling comprising the seeervice cycle indicates information in the second management message frame；According to service week The recycling instruction information of phase exits principal communication channel.
In the technical scheme, by after feeding back confirmation message frame, receiving the second management message frame, and according to service week The recycling instruction information of phase exits principal communication channel, after detecting that the first site apparatus enters wake mode, generates the second pipe Reason message frame is simultaneously sent to the second site apparatus, indicates that the second site apparatus withdraws the seeervice cycle in time, reduces data collision A possibility that generation.
Fig. 3 shows the schematic flow diagram of the communication means of WLAN according to another embodiment of the invention.
As shown in figure 3, the communication means of WLAN according to another embodiment of the invention, comprising: step S302 sends access request frame after carrying out wake mode by periodical suspend mode；Step S304 receives access point apparatus Message frame is managed in response to the third that access request frame is sent, third manages the recovery in message frame comprising the seeervice cycle and indicates letter Breath；Step S306, according to the recovery of seeervice cycle indicate information access principal communication channel again, wherein the first site apparatus into It is assigned the seeervice cycle before entering periodical suspend mode, and principal communication channel is accessed according to the seeervice cycle.
In the technical scheme, message frame is managed by the way that access request frame occurs and receives third, due to seeervice cycle quilt Storage is without redistributing the new seeervice cycle, therefore, greatly improves access efficiency, the first site apparatus of instruction is again Principal communication channel is accessed, and restores the operation such as, positioning synchronous with access point apparatus and Signalling exchange within the seeervice cycle.
In any of the above-described technical solution, it is preferable that a length of when the access of seeervice cycle to be carried on contention-free period ginseng A Duan Shichang in several and/or competing cycle parameter.
In the technical scheme, contention-free period parameter (Contention-Free Period, abbreviation CFP) is carried on letter It marks in frame, in CFP (contention free period), the domain CFP of all downlink data frames is set to 32768, and (namely the 15th is two " 1 " of system, remaining position are all binary " 0 ") because this value is sufficiently large, so that it may prevent those from not receiving The site apparatus of Beacon (beacon) frame that CFP starts will not go to send information within the sufficiently long time, would not also interfere Information between CFP sends and receives.
In addition, site apparatus can in the instruction duration of competing cycle parameter (Contention Period, abbreviation CP) According to EDCA (Enhanced Distributed Channel Access, the distributed channel access agreement of enhancing) mechanism Contention access principal communication channel, then the CP parameter competition that the second website can be broadcasted according to access point apparatus is linked into communication In channel.
Fig. 4 shows the schematic block diagram of the communication device of WLAN according to an embodiment of the invention.
As shown in figure 4, the communication device 400 of WLAN according to an embodiment of the invention, comprising: storage is single Member 402, after entering periodical suspend mode in the secondary communication interface for detecting associated first site apparatus, storage is Distribute to the seeervice cycle of the first site apparatus access principal communication channel；Generation unit 404, for generating the first management message Frame, the first release again for managing in message comprising the seeervice cycle indicate information；Transmission unit 406 is managed for broadcast transmission first Message frame is managed to the second site apparatus for being in wake mode, the second site apparatus releasing again according to the seeervice cycle is in instruction Put instruction information access principal communication channel.
In the technical scheme, it after entering periodical suspend mode by the secondary communication interface in the first site apparatus, deposits The allocated seeervice cycle is stored up, for the first site apparatus, the above-mentioned seeervice cycle is to be suspended, therefore, by above-mentioned service Period is reassigned to the second site apparatus in wake mode, can effectively improve the availability of frequency spectrum and data throughout.
Wherein, when the above-mentioned seeervice cycle refers to one section that the principal communication interface of site apparatus and access point apparatus are negotiated Long, site apparatus carries out data communication by its principal communication interface and access point apparatus in this section of duration.
Specifically, the first site apparatus supports WUR mode and secondary communication interface supports periodical suspend mode, in first stop Before point device enters WUR mode, negotiate to determine the seeervice cycle with access point apparatus, still, the first site apparatus enters WUR mould It can not then be communicated within the seeervice cycle after formula, and the second site apparatus is assigned the above-mentioned seeervice cycle under wake states.
It is worth being also possible to include multiple websites it is emphasized that the second site apparatus can be a site apparatus The grouping of equipment, the second site apparatus can support WUR mode or not support WUR mode, still, be reallocated service week When the phase, the secondary communication interface of the second site apparatus is in wake states.
Wherein, access point apparatus can determine that next communication interface enters according to the upstream message frame that the first site apparatus is fed back Periodical dormant state, for example, the first site apparatus feeding back confirmation message frame after the caching downlink data frame for having received unicast To access point apparatus, for another example, the first site apparatus sends WUR claim frame to access point apparatus, and access point apparatus feeds back WUR response Frame is to indicate that the first site apparatus enters WUR mode, and above-mentioned WUR mode is main communication interface in a dormant state and secondary communication connects Mouth is in periodical dormant state.
In addition, principal communication interface and time communication interface can be two transmitting-receiving ports of same receiver, it is also possible to two A separately positioned receiver.
In any of the above-described technical solution, it is preferable that transmission unit 406 is also used to: first in generation manages message When frame is beacon frame, the principal communication interface of broadcast beacon frame to the second site apparatus for being associated with and being in wake mode, with instruction Principal communication interface indicates information access principal communication channel according to the release again of seeervice cycle.
In the technical scheme, it is beacon frame (Beacon frame) by setting the first management message frame, and broadcasts to second The principal communication interface of site apparatus, wherein the instruction information of release again of seeervice cycle, i.e. access point apparatus are carried in beacon frame After the secondary communication interface for determining the first site apparatus enters periodical dormant state, recycles the seeervice cycle and be reassigned to place In the second site apparatus of wake states, the utilization rate of seeervice cycle is improved, reduces the waste of frequency spectrum resource.
In any of the above-described technical solution, it is preferable that the seeervice cycle include access principal communication channel at the beginning of and At the beginning of finish time or seeervice cycle include access principal communication channel and access duration, wherein the access of seeervice cycle Shi Changwei is carried on the Duan Shichang in contention-free period parameter and/or competing cycle parameter.
In the technical scheme, at the beginning of by the setting seeervice cycle including access principal communication channel at the end of It carves, or including start time and access duration, the second site apparatus has been explicitly indicated in start time and has accessed principal communication channel, has mentioned The reliability that the seeervice cycle redistributes is risen.
Wherein, contention-free period parameter (Contention-Free Period, abbreviation CFP) is carried in beacon frame, In CFP (contention free period), the domain CFP of all downlink data frames be set to 32768 (namely the 15th is binary " 1 ", Remaining position is all binary " 0 ") because this value is sufficiently large, so that it may prevent those from not receiving what CFP started The site apparatus of Beacon (beacon) frame will not go to send information within the sufficiently long time, would not also interfere the letter between CFP Breath sends and receives.
In addition, site apparatus can in the instruction duration of competing cycle parameter (Contention Period, abbreviation CP) According to EDCA (Enhanced Distributed Channel Access, the distributed channel access agreement of enhancing) mechanism Contention access principal communication channel, then the CP parameter competition that the second website can be broadcasted according to access point apparatus is linked into communication In channel.
In any of the above-described technical solution, it is preferable that transmission unit 406 is also used to: detecting the second site apparatus After accessing principal communication channel, data cached frame is sent to the second site apparatus；The communication device 400 of WLAN further include: Receiving unit 408, for receiving the second site apparatus in response to the confirmation message frame of the data cached frame feedback of last frame.
In the technical scheme, by sending unicast, multicast after detecting that the second site apparatus accesses principal communication channel Or the data cached frame of broadcast improves the utilization rate of seeervice cycle, reduces the waste of frequency spectrum resource to the second site apparatus, In addition, by the second site apparatus of setting in response to the data cached frame feeding back confirmation message frame of last frame, so that access point is set It is standby to determine that data cached frame is sent, improve the reliability of the communication interaction of WLAN.
In any of the above-described technical solution, it is preferable that transmission unit 406 is also used to: detecting that the first website sets After the standby confirmation message frame for entering the access request frame sent after wake mode or receiving the second site apparatus feedback, second is generated Message frame is managed, the recycling comprising the seeervice cycle indicates information in the second management message frame；Transmission unit 406 is also used to: being sent Second management message frame to the second site apparatus, to indicate that the second site apparatus indicates that information exits according to the recycling of seeervice cycle Principal communication channel；Generation unit 404 is also used to: being generated and sent third and is managed message frame to the first site apparatus, third management Recovery in message frame comprising the seeervice cycle indicates information, to indicate that the first site apparatus indicates to believe according to the recovery of seeervice cycle Breath accesses principal communication channel again.
In the technical scheme, disappeared by after detecting that the first site apparatus enters wake mode, generating the second management Breath frame is simultaneously sent to the second site apparatus, indicates that the second site apparatus withdraws the seeervice cycle in time, and by generating third pipe Reason message frame is simultaneously sent to the first site apparatus, to indicate that the first site apparatus accesses principal communication channel again, in service week Restore the operation such as, positioning synchronous with access point apparatus and Signalling exchange in phase.
For example, so-called first site apparatus enters wake mode and refers to that its principal communication interface and time communication interface enter Wake states, the first site apparatus sends polling request frame after exiting WUR mode, to access point apparatus, slow with request The downlink data frame deposited, then access point apparatus can determine that the first site apparatus enters revival mould according to the polling request frame of acquisition Formula, access point apparatus determine the seeervice cycle of the corresponding storage of the first site apparatus, and the upper of the second site apparatus is distributed in recycling The seeervice cycle is stated, and is reassigned to first stop point device.
Fig. 5 shows the schematic block diagram of the communication device of WLAN according to another embodiment of the invention.
As shown in figure 5, the communication device 500 of WLAN according to another embodiment of the invention, comprising: communication Unit 502, for receiving the first management message frame, the release again comprising the seeervice cycle indicates information in the first management message；It is logical Letter unit 502 is also used to: indicating information access principal communication channel according to the release again of seeervice cycle, wherein the first site apparatus It is assigned the seeervice cycle before into periodical suspend mode, and principal communication channel is accessed according to the seeervice cycle.
In the technical scheme, the second site apparatus can be delayed in time by receiving the first management message frame Seeervice cycle, fast response time specifically enters periodical suspend mode by the secondary communication interface in the first site apparatus Afterwards, the allocated seeervice cycle is stored, for the first site apparatus, the above-mentioned seeervice cycle is to be suspended, therefore, will be above-mentioned Seeervice cycle is reassigned to the second site apparatus in wake mode, can effectively improve the availability of frequency spectrum and data throughput Amount.
Wherein, when the above-mentioned seeervice cycle refers to one section that the principal communication interface of site apparatus and access point apparatus are negotiated Long, site apparatus carries out data communication by its principal communication interface and access point apparatus in this section of duration.
In any of the above-described technical solution, it is preferable that the communication device 500 of WLAN includes: generation unit 504, when the first management message frame for generation is beacon frame, the master of association and the second site apparatus in wake mode is logical Believe interface beacon frame；Communication unit 502 is also used to: indicating information access principal communication letter according to the release again of seeervice cycle Road, wherein at the beginning of the seeervice cycle includes access principal communication channel and finish time or seeervice cycle include that access is main logical Believe channel at the beginning of and access duration.
In the technical scheme, the second site apparatus can be a site apparatus, be also possible to include that multiple websites are set Standby grouping, the second site apparatus can support WUR mode or not support WUR mode, still, be reallocated the seeervice cycle When, the secondary communication interface of the second site apparatus is in wake states.
In any of the above-described technical solution, it is preferable that communication unit 502 is also used to: after accessing principal communication channel, connecing Receive the data cached frame for passing through principal communication transmission；Communication unit 502 is also used to: receiving the data cached frame of last frame Afterwards, feeding back confirmation message frame.
In the technical scheme, by the way that after detecting that the second site apparatus accesses principal communication channel, access point apparatus is logical The data cached frame of principal communication channel transmission unicast, multicast or broadcast is crossed to the second site apparatus, improves the benefit of seeervice cycle With rate, the waste of frequency spectrum resource is reduced, in addition, anti-in response to the data cached frame of last frame by the second site apparatus of setting Confirmation message frame is presented, allows access point apparatus to determine that data cached frame is sent, improves the communication of WLAN Interactive reliability.
In any of the above-described technical solution, it is preferable that communication unit 502 is also used to: after feeding back confirmation message frame, connecing The second management message frame is received, the recycling comprising the seeervice cycle indicates information in the second management message frame；Communication unit 502 is also used In: indicate that information exits principal communication channel according to the recycling of seeervice cycle.
In the technical scheme, by after feeding back confirmation message frame, receiving the second management message frame, and according to service week The recycling instruction information of phase exits principal communication channel, after detecting that the first site apparatus enters wake mode, generates the second pipe Reason message frame is simultaneously sent to the second site apparatus, indicates that the second site apparatus withdraws the seeervice cycle in time, reduces data collision A possibility that generation.
Fig. 6 shows the schematic block diagram of the communication device of WLAN according to another embodiment of the invention.
As shown in fig. 6, the communication device 600 of WLAN according to another embodiment of the invention, comprising: communication Unit 602, for sending access request frame after carrying out wake mode by periodical suspend mode；Communication unit 602 is also used In: access point apparatus is received in response to the third that access request frame is sent and manages message frame, and third manages in message frame comprising clothes The recovery in business period indicates information；Communication unit 602 is also used to: it is main logical to indicate that information accesses again according to the recovery of seeervice cycle Believe channel, wherein the first site apparatus is assigned the seeervice cycle before entering periodical suspend mode, and accesses according to the seeervice cycle Principal communication channel.
In the technical scheme, message frame is managed by the way that access request frame occurs and receives third, due to seeervice cycle quilt Storage is without redistributing the new seeervice cycle, therefore, greatly improves access efficiency, the first site apparatus of instruction is again Principal communication channel is accessed, and restores the operation such as, positioning synchronous with access point apparatus and Signalling exchange within the seeervice cycle.
In any of the above-described technical solution, it is preferable that a length of when the access of seeervice cycle to be carried on contention-free period ginseng A Duan Shichang in several and/or competing cycle parameter.
In the technical scheme, contention-free period parameter (Contention-Free Period, abbreviation CFP) is carried on letter It marks in frame, in CFP (contention free period), the domain CFP of all downlink data frames is set to 32768, and (namely the 15th is two " 1 " of system, remaining position are all binary " 0 ") because this value is sufficiently large, so that it may prevent those from not receiving The site apparatus of Beacon (beacon) frame that CFP starts will not go to send information within the sufficiently long time, would not also interfere Information between CFP sends and receives.
In addition, site apparatus can in the instruction duration of competing cycle parameter (Contention Period, abbreviation CP) According to EDCA (Enhanced Distributed Channel Access, the distributed channel access agreement of enhancing) mechanism Contention access principal communication channel, then the CP parameter competition that the second website can be broadcasted according to access point apparatus is linked into communication In channel.
Fig. 7 shows the schematic block diagram of access point apparatus according to an embodiment of the invention.
As shown in fig. 7, access point apparatus 700 according to an embodiment of the invention, comprising: as shown in Figure 4 is wireless The communication device 400 of local area network.
Wherein, the communication device 400 of above-mentioned WLAN can be compatible with or be integrated in Wi-Fi communication module The access point apparatus such as mobile phone, tablet computer, music player, navigation device and router, said memory cells 402 can be Memory or peripheral memory are set in above-mentioned communication device 400, generation unit 404 can be the place of above-mentioned communication device 400 Reason device (CPU), controller (MCU), embedded microcontroller chip and baseband processor etc., above-mentioned transmission unit 406 and receiving unit 408 can be the antenna of above-mentioned communication device 400 and carrier modulation block etc..
Fig. 8 shows the schematic block diagram of site apparatus according to an embodiment of the invention.
As shown in figure 8, access point apparatus 800 according to an embodiment of the invention, comprising: as shown in Figure 5 is wireless The communication device 500 of local area network.
Wherein, the communication device 500 of above-mentioned WLAN can be compatible with or be integrated in Wi-Fi communication module The site apparatus such as mobile phone, tablet computer, music player, navigation device and router, above-mentioned generation unit 504 can be State processor (CPU), controller (MCU), embedded microcontroller chip and the baseband processor etc. of communication device 500, above-mentioned communication Unit 502 can be antenna and carrier modulation block of above-mentioned communication device 500 etc..
Fig. 9 shows the schematic block diagram of site apparatus according to another embodiment of the invention.
As shown in figure 9, access point apparatus 900 according to an embodiment of the invention, comprising: as shown in FIG. 6 wireless The communication device 600 of local area network.
Wherein, the communication device 600 of above-mentioned WLAN can be compatible with or be integrated in Wi-Fi communication module The site apparatus such as mobile phone, tablet computer, music player, navigation device and router, above-mentioned communication unit 602 can be State antenna and the carrier modulation block etc. of communication device 600.
Figure 10 shows the setting side of the seeervice cycle of the communication plan of the WLAN of embodiment according to the present invention The schematic diagram of formula.
As shown in Figure 10, the frame structure of carrying seeervice cycle (Service Period) includes:
(1) that CFP Count is indicated is how many DTIM before next contention free period starts, the CFP Count of 0 value What is indicated is the beginning that current DTIM (generally 300ms) is a contention free period.
(2) what CFP Period was indicated is the DTIM number between two contention free periods, and value is an integral multiple DTIM number.
(3) what CFP (Max) Duration was indicated is maximum length of the contention free period as unit of time quantum, is being started The transmission beacon time of contention free period is used to that its network allocation vector is arranged, which includes 16 instruction information, by service week Least-significant byte is written in phase, for the second site apparatus, according to the instruction of above-mentioned seeervice cycle not access communications channel, for the For one site apparatus, according to the instruction access communications channel of above-mentioned seeervice cycle.
(4) what CFP Dur Remaining was indicated is the remaining maximum as unit of time quantum of current contention free period Length, and the value is set to 0 in the competition phase.The value of CFP Dur Remaining takes the beacon sent when from a upper TBTT Frame, the value are used to update their network allocation vector by other all site apparatus in contention free period.
Step in the method for the present invention can be sequentially adjusted, combined, and deleted according to actual needs.
Unit in apparatus of the present invention can be combined, divided, and deleted according to actual needs.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage Medium include read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), programmable read only memory (Programmable Read-only Memory, PROM), erasable programmable is read-only deposits Reservoir (Erasable Programmable Read Only Memory, EPROM), disposable programmable read-only memory (One- Time Programmable Read-Only Memory, OTPROM), the electronics formula of erasing can make carbon copies read-only memory (Electrically-Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other disc memories, magnetic disk storage, magnetic tape storage or can For carrying or any other computer-readable medium of storing data.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (24)

1. a kind of communication means of WLAN is suitable for access point apparatus, which is characterized in that the WLAN leads to Letter method includes:
After the secondary communication interface for detecting associated first site apparatus enters periodical suspend mode, storage has been distributed to The seeervice cycle of the first site apparatus access principal communication channel；
The first management message frame is generated, the release again comprising the seeervice cycle indicates information in the first management message；
First management message frame described in broadcast transmission is in described second to the second site apparatus for being in wake mode with instruction Site apparatus principal communication channel according to the release again of seeervice cycle instruction information access.
2. the communication means of WLAN according to claim 1, which is characterized in that further include:
When the first management message frame generated is beacon frame, broadcast the beacon frame to be associated with and in wake mode the The principal communication interface of two site apparatus, to indicate that the principal communication interface indicates that information connects according to the release again of the seeervice cycle Enter the principal communication channel.
3. the communication means of WLAN according to claim 1, which is characterized in that
The seeervice cycle includes at the beginning of accessing the principal communication channel and finish time or the seeervice cycle include It accesses at the beginning of the principal communication channel and access duration,
Wherein, a length of when the access of the seeervice cycle to be carried in the contention-free period parameter and/or competing cycle parameter A Duan Shichang.
4. the communication means of WLAN according to claim 1, which is characterized in that further include:
After detecting that second site apparatus accesses the principal communication channel, data cached frame is sent to second website Equipment；
Receive the confirmation message frame that second site apparatus is fed back in response to data cached frame described in last frame.
5. the communication means of WLAN according to claim 1, which is characterized in that further include:
The access request frame or reception second website sent after detecting that first site apparatus enters wake mode After the confirmation message frame of equipment feedback, the second management message frame is generated, includes service week in the second management message frame The recycling of phase indicates information；
The second management message frame is sent to second site apparatus, to indicate second site apparatus according to the clothes The recycling instruction information in business period exits the principal communication channel；
It generates and sends third and manages message frame to first site apparatus, it includes the clothes in message frame that the third, which manages, The recovery in business period indicates information, to indicate that first site apparatus indicates information again according to the recovery of the seeervice cycle Access the principal communication channel.
6. a kind of communication means of WLAN is suitable for the second site apparatus, which is characterized in that the WLAN Communication means includes:
The first management message frame is received, the release again comprising the seeervice cycle indicates information in the first management message；
Information access principal communication channel is indicated according to the release again of the seeervice cycle,
Wherein, the first site apparatus is assigned the seeervice cycle before entering periodical suspend mode, and according to the service week Phase accesses principal communication channel.
7. the communication means of WLAN according to claim 6, which is characterized in that further include:
When the first management message frame generated is beacon frame, the master of association and the second site apparatus in wake mode is logical Believe beacon frame described in interface；
The principal communication channel is accessed according to the seeervice cycle of the idle instruction of the release again information instruction,
Wherein, the seeervice cycle include at the beginning of accessing the principal communication channel and finish time or the service it is all Phase includes at the beginning of accessing the principal communication channel and access duration.
8. the communication means of WLAN according to claim 6, which is characterized in that further include:
After accessing the principal communication channel, the data cached frame by the principal communication transmission is received；
After receiving data cached frame described in last frame, feeding back confirmation message frame.
9. the communication means of WLAN according to claim 6, which is characterized in that further include:
After feeding back the confirmation message frame, the second management message frame is received, includes service week in the second management message frame The recycling of phase indicates information；
Indicate that information exits the principal communication channel according to the recycling of the seeervice cycle.
10. a kind of communication means of WLAN, which is characterized in that be suitable for the first site apparatus, which is characterized in that described The communication means of WLAN includes:
After carrying out wake mode by periodical suspend mode, access request frame is sent；
It receives access point apparatus and manages message frame in response to the third that the access request frame is sent, the third manages message frame In comprising the seeervice cycle recovery indicate information；
Indicate that information accesses principal communication channel again according to the recovery of the seeervice cycle,
Wherein, first site apparatus is assigned the seeervice cycle before entering periodical suspend mode, and according to the clothes The business period accesses principal communication channel.
11. the communication means of the WLAN according in claim 6 any one of 10, which is characterized in that
A length of one section be carried in the contention-free period parameter and/or competing cycle parameter the when access of the seeervice cycle Duration.
12. a kind of communication device of WLAN is suitable for access point apparatus, which is characterized in that the WLAN Communication device includes:
Storage unit, for entering periodical suspend mode in the secondary communication interface for detecting associated first site apparatus Afterwards, the seeervice cycle of the first site apparatus access principal communication channel has been distributed in storage；
Generation unit, for generating the first management message frame, releasing comprising the seeervice cycle in the first management message again Put instruction information；
Transmission unit, for the first management message frame described in broadcast transmission to the second site apparatus for being in wake mode, to refer to Show in second site apparatus principal communication channel according to the release again of seeervice cycle instruction information access.
13. the communication device of WLAN according to claim 12, which is characterized in that
The transmission unit is also used to: when the first management message frame of generation is beacon frame, broadcasting the beacon frame to pass The principal communication interface of connection and the second site apparatus in wake mode, to indicate the principal communication interface according to the service week Principal communication channel described in the instruction information access of release again of phase.
14. the communication device of WLAN according to claim 12, which is characterized in that
The seeervice cycle includes at the beginning of accessing the principal communication channel and finish time or the seeervice cycle include It accesses at the beginning of the principal communication channel and access duration,
Wherein, a length of when the access of the seeervice cycle to be carried in the contention-free period parameter and/or competing cycle parameter A Duan Shichang.
15. the communication device of WLAN according to claim 12, which is characterized in that
The transmission unit is also used to: after detecting that second site apparatus accesses the principal communication channel, sending caching Data frame is to second site apparatus；
The communication device of the WLAN further include:
Receiving unit disappears for receiving the confirmation that second site apparatus is fed back in response to data cached frame described in last frame Cease frame.
16. the communication device of WLAN according to claim 12, which is characterized in that
The generation unit is also used to: the access request frame sent after detecting that first site apparatus enters wake mode Or after receiving the confirmation message frame of the second site apparatus feedback, the second management message frame, second management are generated Recycling in message frame comprising the seeervice cycle indicates information；
The transmission unit is also used to: the second management message frame is sent to second site apparatus, to indicate described the Two site apparatus indicate that information exits the principal communication channel according to the recycling of the seeervice cycle；
The generation unit is also used to: being generated and sent third and is managed message frame to first site apparatus, the third pipe It manages the recovery in message frame comprising the seeervice cycle and indicates information, to indicate first site apparatus according to the service week The recovery instruction information of phase accesses the principal communication channel again.
17. a kind of communication device of WLAN is suitable for the second site apparatus, which is characterized in that the WLAN Communication device include:
Communication unit, for receiving the first management message frame, the release again comprising the seeervice cycle refers in the first management message Show information；
The communication unit is also used to: information access principal communication channel is indicated according to the release again of the seeervice cycle,
Wherein, the first site apparatus is assigned the seeervice cycle before entering periodical suspend mode, and according to the service week Phase accesses principal communication channel.
18. the communication device of WLAN according to claim 17, which is characterized in that further include:
Generation unit is associated with and is in the second of wake mode when the first management message frame for generation is beacon frame Beacon frame described in the principal communication interface of site apparatus；
The communication unit is also used to: according to the release again of the seeervice cycle indicate information access described in principal communication channel,
Wherein, the seeervice cycle include at the beginning of accessing the principal communication channel and finish time or the service it is all Phase includes at the beginning of accessing the principal communication channel and access duration.
19. the communication device of WLAN according to claim 17, which is characterized in that
The communication unit is also used to: after accessing the principal communication channel, being received through the slow of the principal communication transmission Deposit data frame；
The communication unit is also used to: after receiving data cached frame described in last frame, feeding back confirmation message frame.
20. the communication device of WLAN according to claim 17, which is characterized in that
The communication unit is also used to: after feeding back the confirmation message frame, receiving the second management message frame, second management Recycling in message frame comprising the seeervice cycle indicates information；
The communication unit is also used to: indicating that information exits the principal communication channel according to the recycling of the seeervice cycle.
21. a kind of communication device of WLAN, which is characterized in that be suitable for the first site apparatus, which is characterized in that described The communication device of WLAN includes:
Communication unit, for sending access request frame after carrying out wake mode by periodical suspend mode；
The communication unit is also used to: being received access point apparatus in response to the third that the access request frame is sent and is managed message Frame, the third manage the recovery in message frame comprising the seeervice cycle and indicate information；
The communication unit is also used to: indicate that information accesses principal communication channel again according to the recovery of the seeervice cycle,
Wherein, first site apparatus is assigned the seeervice cycle before entering periodical suspend mode, and according to the clothes The business period accesses principal communication channel.
22. the communication device of WLAN described in any one of 7 to 21 according to claim 1, which is characterized in that
A length of one section be carried in the contention-free period parameter and/or competing cycle parameter the when access of the seeervice cycle Duration.
23. a kind of access point apparatus characterized by comprising
The communication device of WLAN as described in any one of claim 12 to 16.
24. a kind of site apparatus characterized by comprising
The communication device of WLAN as described in any one of claim 17 to 22.
CN201710867044.8A 2017-09-22 2017-09-22 Communication method and device of wireless local area network, access point equipment and site equipment Active CN109548151B (en)

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