CN104125652A - Relay link establishing method, site, and system - Google Patents

Relay link establishing method, site, and system Download PDF

Info

Publication number
CN104125652A
CN104125652A CN201310146409.XA CN201310146409A CN104125652A CN 104125652 A CN104125652 A CN 104125652A CN 201310146409 A CN201310146409 A CN 201310146409A CN 104125652 A CN104125652 A CN 104125652A
Authority
CN
China
Prior art keywords
frame
relaying
broadcast frame
website
receiving station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310146409.XA
Other languages
Chinese (zh)
Inventor
杨绿溪
王士玉
杨讯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201310146409.XA priority Critical patent/CN104125652A/en
Priority to PCT/CN2013/087459 priority patent/WO2014173120A1/en
Publication of CN104125652A publication Critical patent/CN104125652A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • 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]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

An embodiment of the invention relates to a relay link establishing method, receiving site, request site and system. In the method, the receiving site receives a first broadcast frame transmitted by the request site and a second broadcast frame transmitted by an access point; and when the first broadcast frame and the second broadcast frame are both relay discovery request frames of the request site and the receiving site is set as a relay site, a relay discover response frame is transmitted to the request site so that the request site can determine whether to establish a relay relation with the receiving site based on the relay discovery response frame. Thus, technical details that the request site transmits the Relay discovery request frames and receives the Relay discovery response frame are improved, the request site can transmit data to the AP by use of better channel conditions and a high-order MCS, the data transmission rate is improved, and the accuracy of data transmission is also ensured.

Description

Method for building up, website and the system of repeated link
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method for building up, website and system of repeated link.
Background technology
Along with wireless communication technology develop rapidly, for meeting the demand of people to radio service data, IEEE802.11ah standard is arisen at the historic moment.IEEE802.11ah standard is mainly that it has defined the physical layer of an OFDM and the enhancing function aspect media access control about the agreement of physical layer and media intervention key-course.Wherein, an access point (Access Point in IEEE802.11ah, AP) coverage can reach 1 km to 2 km, and distance A P user site (Station, STA) far away can experience larger channel fading in the time that AP sends data.For this reason, in IEEE802.11ah standard, introduced relaying (Relay) concept.
In IEEE802.11ah standard, in the time there is Relay in Basic Service Set (Basic Service Set, BSS), just can first select suitable Relay for distance A P STA far away or power limited, and connect with it.In the time that needs send data to AP, only data need be issued to Relay, then be forwarded to AP by Relay.
The flow chart of the method for building up of the repeated link that Fig. 1 provides for prior art.As shown in the figure, this method for building up comprises: first STA and AP carry out operation associated, secondly, STA sends Relay and finds claim frame and receive Relay to find response frame, then, STA selects the Relay connecting with it, and connects with this Relay, finally, STA or Relay report the relaying relation of the two to AP.Wherein, the process that STA and Relay connect is: STA sets up (Tunneled Direct Link Setup to this Relay sendaisle direct link, TDLS) set up claim frame, when STA receives setting up after response frame of this Relay response, send the acknowledgement frame of setting up of TDLS to this Relay.In addition, this method for building up is to be based upon on the basis of setting up TDLS link methodology between existing STA, has just done corresponding change in some part.
But said method only relates to the roughly process of establishing of Relay link, send Relay at STA and find claim frame and receive Relay to find in response frame, and STA How to choose Relay part all lacks necessary ins and outs.Meanwhile, find claim frame when multiple Relay receive Relay, and respond Relay and find when response frame, the plurality of Relay can cause the problems such as collision, rollback in the time of access channel, thus the stand-by period of increase STA, the transmitting power that is unfavorable for saving STA.
Summary of the invention
The embodiment of the present invention provides a kind of method for building up, website and system of repeated link, lack necessary ins and outs to alleviate in the process of establishing of Relay link of the prior art, and when receiving Relay, multiple Relay find claim frame, and respond Relay and find when response frame, the plurality of Relay can cause the problem of collision or rollback in the time of access channel.
In first aspect, the embodiment of the present invention provides a kind of method for building up of repeated link, described method comprises: receiving station receives the first broadcast frame of request website transmission and the second broadcast frame that access point sends, described the second broadcast frame is that described access point receives the broadcast frame generating after described first broadcast frame of described request website transmission, and described receiving station and described request website are positioned at the coverage of described access point; If described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, send relaying to described request website and find response frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website.。
In the possible implementation of the first, if described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, send relaying to described request website and find that claim frame comprises: find claim frame if described the first broadcast frame and described the second broadcast frame are the relaying of described request website, and described receiving station is set to described relay-type website, measure the frame energy of described the first broadcast frame; If the frame energy of described the first broadcast frame is greater than default energy threshold, sends described relaying to described request website and find claim frame.
In conjunction with first aspect or in conjunction with the possible implementation of the first of first aspect, in the possible implementation of the second, if described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, send relaying to described request website and find that claim frame comprises: determine that according to the relaying discovery indication field in described the first broadcast frame and described the second broadcast frame and media access control MAC head described the first broadcast frame and described the second broadcast frame are the relaying discovery claim frame of described request website, and when described receiving station is set to relay-type website, send relaying to described request website and find response frame.
In second aspect, the embodiment of the present invention provides a kind of method for building up of repeated link, described method comprises: request website sends the first broadcast frame to access point, and generate the second broadcast frame by described access point according to described the first broadcast frame, and receiving station in the coverage of described access point sends described the second broadcast frame; Receive the relaying discovery response frame that described receiving station sends, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation.
In the possible implementation of the first, described the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the physical layer PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the media access control MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point; Source address is the MAC Address of described request website.
In conjunction with second aspect or in conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second, in the coverage of described access point, comprise multiple receiving stations, the relaying that the described receiving station of described reception sends is found response frame, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation, comprising: within the default response time, receive the relaying discovery response frame that described multiple receiving station sends; Calculate each relaying and find the frame energy of response frame, after described calculating, obtain result of calculation; From described result of calculation, choose receiving station that largest frames energy is corresponding and set up with it the receiving station of relaying relation as described request website.
In the third aspect, the embodiment of the present invention provides a kind of receiving station, described website comprises: receiving element, for receiving the first broadcast frame of request website transmission and the second broadcast frame that access point sends, described the second broadcast frame is that described access point receives the broadcast frame generating after described first broadcast frame of described request website transmission, described receiving station and described request website are positioned at the coverage of described access point, described the first broadcast frame and described the second broadcast frame are transferred to the first processing unit; The first processing unit, for receiving described the first broadcast frame and described the second broadcast frame from described receiving element, if described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, send relaying to described request website and find response frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website.
In the possible implementation of the first, if the relaying that described the first processing unit is also described request website for described the first broadcast frame and described the second broadcast frame is found claim frame, and described receiving station is set to described relay-type website, measure the frame energy of described the first broadcast frame; If the frame energy of described the first broadcast frame is greater than default energy threshold, sends described relaying to described request website and find claim frame.
In conjunction with the third aspect or in conjunction with the possible implementation of the first of the third aspect, in the possible implementation of the second, described the first processing unit is the relaying discovery claim frame for finding that according to the relaying of described the first broadcast frame and described the second broadcast frame indication field and media access control MAC head determine that described the first broadcast frame and described the second broadcast frame are all described request websites also, and when described receiving station is set to relay-type website, sends relaying to described request website and find response frame.
In fourth aspect, the embodiment of the present invention provides a kind of request website, described website comprises: transmitting element, for sending the first broadcast frame to access point, and generate the second broadcast frame by described access point according to described the first broadcast frame, and receiving station in the coverage of described access point sends described the second broadcast frame; Processing unit, the relaying discovery response frame sending for receiving described receiving station, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation.
In the possible implementation of the first, described the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the media access control physical layer MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point; Source address is the MAC Address of described request website.
In conjunction with fourth aspect or in conjunction with the possible implementation of the first of fourth aspect, in the possible implementation of the second, in the coverage of described access point, comprise multiple receiving stations, the relaying discovery response frame that described processing unit also sends for receive described multiple receiving station within the default response time, calculate each relaying and find the frame energy of response frame, after described calculating, obtain result of calculation, and from described result of calculation, choose receiving station that largest frames energy is corresponding and set up with it as described request website the receiving station of relaying relation.
Aspect the 5th, the embodiment of the present invention provides a kind of system of setting up of repeated link, described system comprises: invent the website providing, the website providing in fourth aspect the 3rd, and the access point of the website that the 3rd invention provides and the website providing in fourth aspect is provided.
By the method for building up of the disclosed repeated link of the application embodiment of the present invention, receiving station, request website and system, receiving station receives the first broadcast frame of request website transmission and the second broadcast frame that access point sends, and determine that the relaying that described the first broadcast frame and described the second broadcast frame are all same request websites finds claim frame, and when described receiving station is set to relay-type website, send relaying to described request website and find response frame, when described request website receives the relaying discovery response frame that described receiving station sends, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation, thereby sending Relay, perfect request website finds claim frame and receives Relay to find the ins and outs of response frame, realize request website and can utilize channel condition relatively preferably, and the modulation of high-order and coding strategy (Modulation and Coding Scheme, MCS) send data to AP, not only improve message transmission rate, also ensured the correctness of transfer of data.
Brief description of the drawings
The flow chart of the method for building up of the repeated link that Fig. 1 provides for prior art;
The flow chart of the method for building up of the repeated link that Fig. 2 provides for the embodiment of the present invention one;
The schematic diagram of the frame structure of the first broadcast frame that Fig. 3 provides for the embodiment of the present invention two;
The schematic diagram of the frame structure of the second broadcast frame that Fig. 4 provides for the embodiment of the present invention three;
The TDLS that Fig. 5 provides for the embodiment of the present invention four finds the schematic diagram of the frame structure of claim frame;
The relaying that Fig. 6 provides for the embodiment of the present invention five is found the schematic diagram of the frame structure of response frame;
The TDLS that Fig. 7 provides for the embodiment of the present invention six finds the schematic diagram of the frame structure of claim frame;
The TDLS that Fig. 8 provides for the embodiment of the present invention seven sets up the schematic diagram of the frame structure of claim frame;
The TDLS that Fig. 9 provides for the embodiment of the present invention eight sets up the schematic diagram of the frame structure of acknowledgement frame;
The flow chart of the method for building up of the repeated link that Figure 10 provides for the embodiment of the present invention nine;
The flow chart of the method for building up of the repeated link that Figure 11 provides for the embodiment of the present invention ten;
The flow chart of the method for building up of the repeated link that Figure 12 provides for the embodiment of the present invention 11;
The schematic diagram of the method for building up of the repeated link that Figure 13 provides for the embodiment of the present invention 12;
The schematic diagram of the website that Figure 14 provides for the embodiment of the present invention 13;
The schematic diagram of the website that Figure 15 provides for the embodiment of the present invention 14;
The schematic diagram of the website that Figure 16 provides for the embodiment of the present invention 15;
The schematic diagram of the website that Figure 17 provides for the embodiment of the present invention 16.
Embodiment
The embodiment of the present invention provides a kind of method for building up of repeated link, website and system, wherein, website comprises receiving station and request website, receiving station receives the first broadcast frame of request website transmission and the second broadcast frame that access point sends, and determine that the relaying that described the first broadcast frame and described the second broadcast frame are all same request websites finds claim frame, and when described receiving station is set to relay-type website, send relaying to described request website and find response frame, when described request website receives the relaying discovery response frame that described receiving station sends, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation, thereby sending Relay, perfect request website finds claim frame and receives Relay to find the ins and outs of response frame, having realized request website can utilize the MCS of relatively good channel condition and high-order to send data to AP, not only improve message transmission rate, also ensured the correctness of transfer of data.
The flow chart of the method for building up of the repeated link that Fig. 2 provides for the embodiment of the present invention one.As shown in the figure, the embodiment of the present invention specifically comprises the following steps:
Step 210, receiving station receives the first broadcast frame of request website transmission and the second broadcast frame that access point sends, described the second broadcast frame is that described access point receives the broadcast frame generating after described first broadcast frame of described request website transmission, and described receiving station and described request website are positioned at the coverage of described access point.
Particularly, the coverage of the each AP in IEEE802.11ah can reach 1 km to 2 km, can cover multiple user site, comprises request website and receiving station.In embodiments of the present invention, request website refers to the user site that sends the first broadcast frame, and receiving station refers to the user site that receives the first broadcast frame and the second broadcast frame, and this receiving station may be one, may be also multiple.Wherein, general distance A P is distant for request website, need to send data as relaying to AP by receiving station, asks like this website can utilize the MCS of relatively good channel condition and high-order to send data to AP, not only improve message transmission rate, also ensured the correctness of transfer of data.
When request website is in the time selecting relay, generally should chosen distance oneself nearer receiving station is as relay, and distance request receiving station far away also need not be responded receiving the first broadcast frame or the second broadcast frame, its system of selection adopting is that selectivity is responded mechanism, be that receiving station not only receives the first broadcast frame, but also while receiving the second broadcast frame, just respond.
Wherein, the first broadcast frame is that the Relay that request website sends to AP finds claim frame, the second broadcast frame is that AP receives after the Relay discovery claim frame of request website transmission, the Relay receiving is found to media access control (the Media Access Control of claim frame, MAC) head is modified, and the Relay that obtains after this amendment is found to claim frame broadcasts to all user site in self coverage.Wherein, request website is to adopt the mode of broadcast to send in the time that AP sends the first broadcast frame, so receiving station can receive the first broadcast frame and the second broadcast frame.
The frame structure of the frame structure of the first broadcast frame and the second broadcast frame, find that with TDLS of the prior art claim frame is similar.The frame structure of the first broadcast frame, as shown in Figure 3.The frame structure of the frame structure of the second broadcast frame, as shown in Figure 4.TDLS finds the frame structure of claim frame, as shown in Figure 5.Fig. 3 and Fig. 4, with Fig. 5 comparison, its difference is: TDLS finds that the destination address of MAC head in claim frame is set to broadcast address, simultaneously, TDLS in frame is initiated to website MAC Address and be revised as Relay initiation website MAC Address, the website MAC Address of responding TDLS is revised as Relay responds website MAC Address, and this Relay response website MAC Address is set to broadcast address.In the embodiment of the present invention, Relay initiates website MAC Address and refers to the MAC Address of asking website.As for the remainder of the frame structure of the first broadcast frame and the second broadcast frame, such as, logic link control (Logic Link Control, LLC) header, sub-network access protocal (Sub Network Access Protocol, SNAP) head and the MAC Address (BSSID) of website etc., find that with TDLS claim frame is identical, here no longer describe in detail.
As shown in Figure 3 and Figure 4, the frame structure of the first broadcast frame is identical with the frame structure of the second broadcast frame.But the address information in the MAC head of the first broadcast frame is different with the address information in the MAC head of the second broadcast frame.In this MAC head, comprise 4 address fields, each address field length is 6 bytes, and these 4 address fields might not all can appear in the broadcast frame of transmission.These 4 address fields can represent transmitter address, receiver address, destination address, source address (be which website frame is derived from, may follow transmitter address difference) etc.
The MAC Address (BSSID) that receiver address in the MAC head of the first broadcast frame is AP, transmitter address is the MAC Address of request website, destination address is broadcast address,
In the MAC head of the second broadcast frame, receiver address is broadcast address, the MAC Address (BSSID) that transmitter address is AP, and source address is the MAC Address of request website.
Wherein, AP is also a kind of user site, is more powerful, and therefore, the request MAC Address of website is identical with the MAC Address character of AP, can be regarded as exclusive unique sequence number of setting while dispatching from the factory, for example 00-23-5A-15-99-42.In addition, in the time that 48 of address field are 1 entirely, be broadcast address.
In addition, physical layer (the Physical Layer of the first broadcast frame and the second broadcast frame, PHY) in the signaling field (SIG) of head, add Relay to find instruction (Relay Discovery Indicator, RDI) field, this field length is 1bit.In the time that RDI is 1, represent that this frame is to be used in relaying to find (Relay Discovery) frame in the stage, in the time that RDI is 0, represents that this frame is the frame under other situations; Or, in the time that RDI is 0, represent that this frame is to be used in relaying to find (Relay Discovery) frame in the stage, in the time that RDI is 1, represents that this frame is the frame under other situations.Wherein, Relay finds that indication field also can other method for expressing, here repeats no more, as long as request website and receiving station find that for Relay the implication that indication field represents is consistent.
Step 220, if receiving station is determined described the first broadcast frame and described the second broadcast frame and is the relaying discovery claim frame of same request website, and described receiving station is set to relay-type website, send relaying to described request website and find response frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website.In addition, when the relaying that described the first broadcast frame and described the second broadcast frame are all same request websites is found claim frame, and described receiving station is not while being relay-type website, abandons described the first broadcast frame and described the second broadcast frame.
Particularly, generally, in the time that receiving station receives the first broadcast frame or the second broadcast frame, be first decoded to MAC head part, according to receiver address or destination address information determine whether to receive or demodulation after information.Because Relay is the new one mechanism of introducing, receiving station just can directly obtain the value of RDI in the time of restituted signal, and RDI just represents whether be that Relay finds the stage, this stage is also found response frame.
Determine that when find indication field according to the relaying in described the first broadcast frame and described the second broadcast frame described the first broadcast frame and described the second broadcast frame are all in the Relay discovery stage, judge according to the address information in described the first broadcast frame and described the second broadcast frame MAC head whether described the first broadcast frame and described the second broadcast frame are the relaying discovery claim frames of same request website again, find claim frame when determining the relaying that described the first broadcast frame and described the second broadcast frame are same request websites, and when the receiving station that receives described the first broadcast frame and described the second broadcast frame is also set to Relay website, directly send relaying to described request website and find response frame.Wherein, be that Relay website is also non-Relay website about receiving station, it is a kind of attach feature of the user site of new production, the relay services of self website can be opened or close to user site according to demand.
Illustrate relaying that receiving station determines that described the first broadcast frame and described the second broadcast frame are all same request websites below and find the method for claim frame:
In the signaling field SIG of (the PHY Header) of the PHY head of (1) first broadcast frame and the second broadcast frame, use the RDI instruction of 1bit to represent whether the frame sending is to work in Relay to find the stage, such as, receiving station is 1 to know that the broadcast frame receiving belongs to Relay and finds the stage according to RDI.
(2) in the Relay discovery stage, only there is Relay to find that an address in claim frame has been set as broadcast address, such as, complete 1, in the time that receiving station detects broadcast address, know that the broadcast frame receiving is that Relay finds claim frame.
(3) address information of the first broadcast frame and the second broadcast frame is compared, if address information is identical, show that the first broadcast frame and the second broadcast frame belong to same request website.
Further, step 220 also comprises: determine when receiving station the relaying that described the first broadcast frame and described the second broadcast frame are all same request websites and find claim frame, and when described receiving station is set to described relay-type website, the selectivity that it adopts is responded mechanism and is found response frame for directly not sending relaying to described request website, but the frame energy of the first broadcast frame that first measurement receives, in the time that the frame energy of the first broadcast frame is greater than default energy threshold, then send described relaying discovery claim frame to described request website.This illustrates in the time that the frame energy of the first broadcast frame is greater than default energy threshold, illustrates that the distance of request website and receiving station is closer, and this receiving station is suitable as the relay of request website; In the time that the frame energy of the first broadcast frame is not more than default energy threshold, illustrate that the distance of request website and receiving station is distant, this receiving station is not suitable as the relay of request website.
In addition, Relay finds that the structure of response frame is similar to the structure of TDLS discovery response frame.Relay finds the frame structure of response frame, and as shown in Figure 6, TDLS finds the frame structure of response frame, as shown in Figure 7.In Fig. 6, Relay initiates the MAC Address that website MAC Address is request website, and Relay responds the MAC Address that website MAC Address is receiving station.Remainder and Fig. 7 as for frame structure are similar, here no longer describe in detail.
Further, after step 220, also comprise: the TDLS that receiving station receives the transmission of request website sets up claim frame, and set up acknowledgement frame to described request website transmission TDLS, set up the relaying relation of acknowledgement frame foundation and described receiving station according to described TDLS in order to described request website, and described receiving station sends and carry described request website and described receiving station is the reporting information of relaying relation to described access point, know the relaying relation of described request website and described receiving station in order to described access point.
Wherein, TDLS sets up the frame structure of claim frame, as shown in Figure 8; TDLS sets up the frame structure of acknowledgement frame, as shown in Figure 9.The specific definition of these frame structures is prior art, here no longer describes in detail.
Therefore, the method for building up of the repeated link that the embodiment of the present invention provides, receive the first broadcast frame of request website transmission and the second broadcast frame that access point sends by receiving station, and determine that the relaying that described the first broadcast frame and described the second broadcast frame are all same request websites finds claim frame, and when described receiving station is set to relay-type website, send relaying to described request website and find response frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website, thereby sending Relay, perfect request website finds claim frame and receives Relay to find the ins and outs of response frame, having realized request website can utilize the MCS of relatively good channel condition and high-order to send data to AP, not only improve message transmission rate, also ensured the correctness of transfer of data.
The flow chart of the method for building up of the repeated link that Figure 10 provides for the embodiment of the present invention nine.As shown in the figure, the embodiment of the present invention specifically comprises the following steps:
Step 101, multiple receiving stations receive the first broadcast frame of request website transmission and the second broadcast frame that access point sends, described the second broadcast frame is that described access point receives the broadcast frame generating after described first broadcast frame of described request website transmission, and described multiple receiving stations and described request website are all positioned at the coverage of described access point.
Step 102, if multiple receiving stations are determined described the first broadcast frame and described the second broadcast frame and are the relaying discovery claim frame of same request website, and described receiving station is set to relay-type website, the plurality of receiving station mode by free competition within the default response time is obtained channel, when described receiving station gets described channel within the described default response time, utilize described channel to send relaying to described request website and find claim frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website.In addition, when described receiving station does not get described channel within the described default response time, abandon sending relaying to described request website and find claim frame.
Wherein, obtain channel and refer to and can access channel by competing method, and send relaying to described request website and find claim frame, whether be idle to receiving station if first detecting channel, if channel idle, sends relaying to described request website after random back certain hour and finds claim frame; If not idle, wait for channel idle, until send relaying discovery claim frame to described request website after random back certain hour after channel idle.This Channel Access Mechanism adopts in existing protocol.
Further, step 102 also comprises: be the relaying discovery claim frame of same request website if multiple receiving station is determined described the first broadcast frame and described the second broadcast frame, and described receiving station is set to described relay-type website, the plurality of receiving station also can first not obtain channel by the mode of free competition, but the frame energy of the first broadcast frame that first measurement receives, the receiving station that the frame energy of the first broadcast frame only receiving is greater than default energy threshold just obtains channel to described request website transmission relaying discovery claim frame by the mode of free competition within the default response time, remaining receiving station is abandoned sending relaying to described request website and is found claim frame.
The default response time in above-mentioned steps 102 arranges in advance, can be also that AP arranges according to the situation of self, then notifies to each user site in AP coverage.This default response time starts timing the user site in can be from AP to its coverage sends the second broadcast frame.
The frame structure of the first broadcast frame of the embodiment of the present invention, as shown in Figure 3.The frame structure of the frame structure of the second broadcast frame, as shown in Figure 4.Relay finds the frame structure of response frame, as shown in Figure 6.TDLS sets up the frame structure of claim frame, as shown in Figure 8; TDLS sets up the frame structure of acknowledgement frame, as shown in Figure 9.These frame structures describe in detail in the embodiment shown in Figure 2, here repeat no more.
The flow chart of the method for building up of the repeated link that Figure 11 provides for the embodiment of the present invention ten.As shown in the figure, the embodiment of the present invention specifically comprises the following steps:
Step 111, request website sends the first broadcast frame to access point, and generates the second broadcast frame by described access point according to described the first broadcast frame, and receiving station in the coverage of described access point sends described the second broadcast frame.Wherein, the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point; Source address is the MAC Address of described request website.
Particularly, in the embodiment of the present invention, request website refers to the user site that sends the first broadcast frame, and receiving station refers to the user site that receives the first broadcast frame and the second broadcast frame, and this receiving station may be one, may be also multiple.Wherein, general distance A P is distant for request website, need to send data as relaying to AP by receiving station.Request website and AP carry out associated after, if request website need to obtain relay, needing to send the first broadcast frame to AP is that Relay finds claim frame, the Relay that AP receives the transmission of request website finds after claim frame, the Relay that receives is found to the MAC head of claim frame modifies, and the Relay obtaining after this amendment is found to claim frame broadcasts to all user site in self coverage.
Step 112, request website receives the relaying discovery response frame that described receiving station sends, and finds that according to described relaying response frame determines whether to set up and described receiving station relaying relation.
Particularly, when comprising multiple receiving stations in the coverage of access point, request website may receive the relaying discovery response frame that the plurality of receiving station sends, and finds that for the multiple relayings that receive the processing method of response frames is:
(1) within the default response time, receive the relaying discovery response frame that multiple receiving stations send.
(2) calculate each relaying and find the frame energy of response frame, after described calculating, obtain result of calculation;
(3) from above-mentioned result of calculation, choose receiving station that largest frames energy is corresponding and set up with it as described request website the receiving station of relaying relation.
Further, after step 112, also comprise: request website is set up TDLS to described receiving station sendaisle direct link and set up claim frame, and receive the TDLS that described receiving station sends and set up acknowledgement frame, and set up acknowledgement frame according to described TDLS and set up and the relaying relation of described receiving station.In addition, request website also sends and carries described request website and described receiving station is the reporting information of relaying relation to described AP, knows the relaying relation of described request website and described receiving station in order to described access point.
The frame structure of the first broadcast frame of the embodiment of the present invention, as shown in Figure 3.The frame structure of the frame structure of the second broadcast frame, as shown in Figure 4.Relay finds the frame structure of response frame, as shown in Figure 6.TDLS sets up the frame structure of claim frame, as shown in Figure 8; TDLS sets up the frame structure of acknowledgement frame, as shown in Figure 9.These frame structures describe in detail in the embodiment shown in Figure 2, here repeat no more.
Therefore, the method for building up of the repeated link that the embodiment of the present invention provides, send the first broadcast frame by request website to access point, and generate the second broadcast frame by described access point according to described the first broadcast frame, and receiving station in the coverage of described access point sends described the second broadcast frame, receive the relaying discovery response frame that described receiving station sends, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation, thereby sending Relay, perfect request website finds claim frame and receives Relay to find the ins and outs of response frame, having realized request website can utilize the MCS of relatively good channel condition and high-order to send data to AP, not only improve message transmission rate, also ensured the correctness of transfer of data.
The flow chart of the method for building up of the repeated link that Figure 12 provides for the embodiment of the present invention 11.As shown in the figure, the embodiment of the present invention specifically comprises the following steps:
Step 120 is that request website (STA1) sends Relay discovery claim frame and receives Relay discovery response frame.Step 121 to step 128 is concrete ins and outs of step 120.
Step 121, request website (STA1) sends Relay to AP and finds i.e. the first broadcast frame (F1) of claim frame.
Step 122, AP broadcast Relay finds i.e. the second broadcast frame (F2) of claim frame.
Step 123, whether receiving station (STA2) is set to relay-type website, when STA2 is set to relay-type website, performs step 125, when STA2 is set to non-relay-type website, performs step 124.
Step 124, STA2 abandons receiving the first broadcast frame or the second broadcast frame.
Step 125, judges the frame energy P of the first broadcast frame (F1) that STA2 receives f1whether be greater than default energy threshold P 0.Work as P f1be greater than P 0time, execution step 126; Work as P f1be not more than P 0time, execution step 128.
Step 126, judges that can STA2 access channel within the default response time, when STA2 accesses channel within the default response time, performs step 127, when not accessing channel as STA2 within the default response time, performs step 128.
Step 127, STA2 directly sends relaying to STA1 and finds response frame.
Step 128, STA2 does not send relaying to STA1 and finds response frame.
The schematic diagram of the method for building up of the repeated link that Figure 13 provides for the embodiment of the present invention 12.As shown in the figure, in figure, two vertical lines represent competitive channel, frame the first broadcast frame (F1) the second broadcast frame (F2) that the frame representative of horizontal line top sends, and horizontal line below represents to receive broadcast frame, comprises the first broadcast frame and the second broadcast frame.
Wherein, STA1 is request website, and STA2 is that conventional website is non-relay-type STA, and STA3 to STA7 is relay-type website.F1 is that the Relay that STA1 sends to AP finds claim frame; F2 is that the Relay of AP broadcast finds claim frame; F3 is that the Relay that STA4 or STA5 respond finds response frame; F4 is that the TDLS that STA1 sends to STA4 sets up claim frame.P f1represent the frame energy of the first broadcast frame (F1) receiving, P 0for default energy threshold P0, P4, P5 are respectively the energy of the relaying discovery response frame of STA4, the STA5 response receiving.
The Relay that STA3 receives only AP broadcast finds i.e. the second broadcast frame (F2) of claim frame, and does not receive i.e. the first broadcast frame (F1) of claim frame that STA1 sends, so STA3 does not send Relay to STA1 and finds response frame;
The Relay that STA7 receives AP broadcast finds i.e. the second broadcast frame (F2) of claim frame, also receives i.e. the first broadcast frame (F1) of claim frame that STA1 sends, but the frame energy P of the first broadcast frame (F1) receiving f1be less than default energy threshold P 0so STA7 does not also send Relay to STA1 and finds response frame;
The Relay that STA6 receives AP broadcast finds i.e. the second broadcast frame (F2) of claim frame, also receives i.e. the first broadcast frame (F1) of claim frame that STA1 sends, meanwhile, and the frame energy P of the first broadcast frame (F1) receiving f1be not less than default energy threshold P 0, but abandon sending Relay discovery response frame to STA1 because cannot compete channel within the default response time (being Response Time Limit window);
Only have STA4 and STA5 to meet all conditions, and successful to STA1 transmission Relay discovery response frame, and STA1 selects the relaying of a conduct preferably oneself therein.Suppose that STA1 receives from the energy of the echo message of STA4 larger, so select STA4 as relay.
Figure is visible thus, and this mechanism has reduced the quantity of responding website, can help to ask website to select efficiently suitable relay, has also saved the power consumption of request website simultaneously.
The schematic diagram of the website that Figure 14 provides for the embodiment of the present invention 13.This website is receiving station, and for carrying out the method for building up of the repeated link that the embodiment of the present invention one to embodiment 12 provides.As shown in the figure, the embodiment of the present invention specifically comprises: receiving element 141 and the first processing unit 142.
Receiving element 141 is for receiving the first broadcast frame of request website transmission and the second broadcast frame that access point sends, described the second broadcast frame is that described access point receives the broadcast frame generating after described first broadcast frame of described request website transmission, described receiving station and described request website are positioned at the coverage of described access point, described the first broadcast frame and described the second broadcast frame are transferred to the first processing unit 142; The first processing unit 142 is for receiving described the first broadcast frame and described the second broadcast frame from described receiving element 141, if described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, send relaying to described request website and find response frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website.
Wherein, described the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point, and source address is the MAC Address of described request website.
Further, if the relaying that described the first processing unit 142 is also described request website for described the first broadcast frame and described the second broadcast frame is found claim frame, and described receiving station is set to described relay-type website, measure the frame energy of described the first broadcast frame; If the frame energy of described the first broadcast frame is greater than default energy threshold, sends described relaying to described request website and find claim frame.。
Further, described the first processing unit 142 is the relaying discovery claim frame for finding that according to the relaying of described the first broadcast frame and described the second broadcast frame indication field and MAC head determine that described the first broadcast frame and described the second broadcast frame are all described request websites also, and when described receiving station is set to relay-type website, sends relaying to described request website and find response frame.
Further, in the coverage of described access point, comprise multiple receiving stations, described the first processing unit 142 also obtains channel for described multiple receiving stations mode by free competition within the default response time, when described receiving station gets described channel within the described default response time, utilize described channel to send relaying to described request website and find claim frame, when described receiving station does not get described channel within the described default response time, abandon sending relaying to described request website and find claim frame.
Further, the receiving station that the embodiment of the present invention provides also comprises: the second processing unit 143 and transmitting element 144.
The second processing unit 143 is set up TDLS and is set up claim frame for the passage direct link that receives described request website and send, and set up acknowledgement frame to described request website transmission TDLS, set up the relaying relation of acknowledgement frame foundation and described receiving station according to described TDLS in order to described request website; Transmitting element 144 carries described request website and described receiving station is the reporting information of relaying relation for sending to described access point, knows the relaying relation of described request website and described receiving station in order to described access point.
In addition, the receiving station that the embodiment of the present invention provides also comprises: the 3rd processing unit 144.
The 3rd processing unit 144 is for being all that relaying is found claim frame when described the first broadcast frame and described the second broadcast frame, and described receiving station is not while being relay-type website, abandons described the first broadcast frame and described the second broadcast frame.
Therefore, the receiving station that the embodiment of the present invention provides, ask the first broadcast frame of website transmission and the second broadcast frame that access point sends by reception, and determine that the relaying that described the first broadcast frame and described the second broadcast frame are all same request websites finds claim frame, and when described receiving station is set to relay-type website, send relaying to described request website and find response frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website, thereby sending Relay, perfect request website finds claim frame and receives Relay to find the ins and outs of response frame, having realized request website can utilize the MCS of relatively good channel condition and high-order to send data to AP, not only improve message transmission rate, also ensured the correctness of transfer of data.
The schematic diagram of the website that Figure 15 provides for the embodiment of the present invention 14.This website is request website, and for carrying out the method for building up of the repeated link that the embodiment of the present invention one to embodiment 12 provides.As shown in the figure, the embodiment of the present invention specifically comprises: transmitting element 151 and processing unit 152.
Transmitting element 151 is for send the first broadcast frame to access point, and generates the second broadcast frame by described access point according to described the first broadcast frame, and receiving station in the coverage of described access point sends described the second broadcast frame; The relaying discovery response frame that processing unit 152 sends for receiving described receiving station, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation.
Wherein, described the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point; Source address is the MAC Address of described request website.
Further, in the coverage of described access point, comprise multiple receiving stations, the relaying discovery response frame that described processing unit 152 also sends for receive described multiple receiving station within the default response time, calculate each relaying and find the frame energy of response frame, after described calculating, obtain result of calculation, and from described result of calculation, choose receiving station that largest frames energy is corresponding and set up with it as described request website the receiving station of relaying relation.
Further, described processing unit 152 is also set up claim frame for setting up TDLS to described receiving station sendaisle direct link, and the TDLS that receives described receiving station transmission sets up acknowledgement frame, set up the relaying relation of acknowledgement frame foundation and described receiving station according to described TDLS, and send and carry described request website and described receiving station is the reporting information of relaying relation to described access point, know the relaying relation of described request website and described receiving station in order to described access point.
Therefore, the request website that the embodiment of the present invention provides, by send the first broadcast frame to access point, and generate the second broadcast frame by described access point according to described the first broadcast frame, and receiving station in the coverage of described access point sends described the second broadcast frame, receive the relaying discovery response frame that described receiving station sends, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation, thereby sending Relay, perfect request website finds claim frame and receives Relay to find the ins and outs of response frame, having realized request website can utilize the MCS of relatively good channel condition and high-order to send data to AP, not only improve message transmission rate, also ensured the correctness of transfer of data.
The schematic diagram of the website that Figure 16 provides for the embodiment of the present invention 15.In 160 application of this website, be request website 160, this receiving station 160 is for the method for building up of the repeated link carrying out the embodiment of the present invention one to embodiment 12 and provide.As shown in the figure, the embodiment of the present invention specifically comprises: receiving station port one 61, processor 162 and memory 163.Receiving station bus 164 is for connecting receiving station port one 61, processor 162 and memory 163.
Receiving station port one 61 is for being connected with requesting node with AP.Described receiving station and described request website are all positioned at the coverage of described access point.
Memory 163 can be permanent memory, and for example hard disk drive and flash memory have software module and device driver in memory 163.Software module can be carried out the various functional modules of said method of the present invention; Device driver can be network and interface drive program.
In the time starting, these component softwares are loaded in memory 163, are then accessed and carry out the method for building up of the repeated link that the embodiment of the present invention one to embodiment 12 provides by processor 162.
The schematic diagram of the website that Figure 17 provides for the embodiment of the present invention 16.In 170 application of this website, be request website 170, this receiving station 170 is for the method for building up of the repeated link carrying out the embodiment of the present invention one to embodiment 12 and provide.As shown in the figure, the embodiment of the present invention specifically comprises: the embodiment of the present invention specifically comprises request Site Port 171, processor 172 and memory 173.Request website bus 174 is for connection request Site Port 171, processor 172 and memory 173.
Request Site Port 171 is for being connected with AP, receiving station.Described receiving station and described request website are all positioned at the coverage of described access point.
Memory 173 can be permanent memory, and for example hard disk drive and flash memory have software module and device driver in memory 173.Software module can be carried out the various functional modules of said method of the present invention; Device driver can be network and interface drive program.
In the time starting, these component softwares are loaded in memory 173, are then accessed and carry out the method for building up of the repeated link that the embodiment of the present invention one to embodiment 12 provides by processor 172.
The embodiment of the present invention also provides a kind of system of setting up of repeated link, and this system comprises: the receiving station that the embodiment of the present invention 14 provides, the request website that the embodiment of the present invention 15 provides and cover described receiving station and the access point of described request website; Or the request website that the receiving station that the embodiment of the present invention 16 provides, the embodiment of the present invention 17 provide and cover described receiving station and the access point of described request website.
Professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can realize described function with distinct methods to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection range being not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (23)

1. a method for building up for repeated link, is characterized in that, described method comprises:
Receiving station receives the first broadcast frame of request website transmission and the second broadcast frame that access point sends, described the second broadcast frame is that described access point receives the broadcast frame generating after described first broadcast frame of described request website transmission, and described receiving station and described request website are positioned at the coverage of described access point;
If described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, send relaying to described request website and find response frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website.
2. the method for building up of repeated link according to claim 1, it is characterized in that, if described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, sends relaying to described request website and find that claim frame comprises:
Find claim frame if described the first broadcast frame and described the second broadcast frame are the relaying of described request website, and described receiving station is set to described relay-type website, measures the frame energy of described the first broadcast frame;
If the frame energy of described the first broadcast frame is greater than default energy threshold, sends described relaying to described request website and find claim frame.
3. according to the method for building up of the repeated link described in claim 1 or 2 any one, it is characterized in that, if described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, sends relaying to described request website and find that claim frame comprises:
Determine that according to the relaying discovery indication field in described the first broadcast frame and described the second broadcast frame and media access control MAC head described the first broadcast frame and described the second broadcast frame are the relaying discovery claim frame of described request website, and when described receiving station is set to relay-type website, sends relaying to described request website and find response frame.
4. the method for building up of repeated link according to claim 3, is characterized in that, described the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point, and source address is the MAC Address of described request website.
5. according to the method for building up of the repeated link described in claim 1 to 4 any one, it is characterized in that, in the coverage of described access point, comprise multiple receiving stations, if the relaying that described the first broadcast frame and described the second broadcast frame are all described request websites is found claim frame, and described receiving station is set to relay-type website, sends relaying to described request website and find that claim frame comprises:
Described multiple receiving station mode by free competition within the default response time is obtained channel, when described receiving station gets described channel within the described default response time, utilize described channel to send relaying to described request website and find claim frame, when described receiving station does not get described channel within the described default response time, abandon sending relaying to described request website and find claim frame.
6. according to the method for building up of the repeated link described in claim 1 to 5 any one, it is characterized in that, described after described request website sends relaying discovery claim frame, also comprise:
The passage direct link that reception described request website sends is set up TDLS and is set up claim frame, and sets up acknowledgement frame to described request website transmission TDLS, sets up the relaying relation of acknowledgement frame foundation and described receiving station in order to described request website according to described TDLS;
Send and carry described request website and described receiving station is the reporting information of relaying relation to described access point, know the relaying relation of described request website and described receiving station in order to described access point.
7. the method for building up of repeated link according to claim 1, it is characterized in that, if described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, send relaying to described request website and find response frame, also comprise:
When described the first broadcast frame and described the second broadcast frame are all that relaying is found claim frame, and described receiving station is not while being relay-type website, abandons described the first broadcast frame and described the second broadcast frame.
8. a method for building up for repeated link, is characterized in that, described method comprises:
Request website sends the first broadcast frame to access point, and generates the second broadcast frame by described access point according to described the first broadcast frame, and receiving station in the coverage of described access point sends described the second broadcast frame;
Receive the relaying discovery response frame that described receiving station sends, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation.
9. the method for building up of repeated link according to claim 8, it is characterized in that, described the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the physical layer PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the media access control MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point; Source address is the MAC Address of described request website.
10. the method for building up of repeated link according to claim 8 or claim 9, it is characterized in that, in the coverage of described access point, comprise multiple receiving stations, the relaying that the described receiving station of described reception sends is found response frame, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation, comprising:
Within the default response time, receive the relaying discovery response frame that described multiple receiving station sends;
Calculate each relaying and find the frame energy of response frame, after described calculating, obtain result of calculation;
From described result of calculation, choose receiving station that largest frames energy is corresponding and set up with it the receiving station of relaying relation as described request website.
The method for building up of 11. repeated links according to claim 10, is characterized in that, described choosing from described result of calculation after receiving station that largest frames energy is corresponding sets up with it the receiving station of relaying relation as described request website, also comprises:
Set up TDLS to described receiving station sendaisle direct link and set up claim frame, and receive the TDLS that described receiving station sends and set up acknowledgement frame;
Set up the relaying relation of acknowledgement frame foundation and described receiving station according to described TDLS;
Send and carry described request website and described receiving station is the reporting information of relaying relation to described access point, know the relaying relation of described request website and described receiving station in order to described access point.
12. 1 kinds of websites, is characterized in that, described website comprises:
Receiving element, for receiving the first broadcast frame of request website transmission and the second broadcast frame that access point sends, described the second broadcast frame is that described access point receives the broadcast frame generating after described first broadcast frame of described request website transmission, described receiving station and described request website are positioned at the coverage of described access point, described the first broadcast frame and described the second broadcast frame are transferred to the first processing unit;
The first processing unit, for receiving described the first broadcast frame and described the second broadcast frame from described receiving element, if described the first broadcast frame and described the second broadcast frame are the relaying of described request website and find claim frame, and described receiving station is set to relay-type website, send relaying to described request website and find response frame, find that according to described relaying response frame determines whether to set up and described receiving station relaying relation in order to described request website.
13. websites according to claim 12, it is characterized in that, if the relaying that described the first processing unit is also described request website for described the first broadcast frame and described the second broadcast frame is found claim frame, and described receiving station is set to described relay-type website, measure the frame energy of described the first broadcast frame; If the frame energy of described the first broadcast frame is greater than default energy threshold, sends described relaying to described request website and find claim frame.
14. according to the website described in claim 12 or 13, it is characterized in that, described the first processing unit is the relaying discovery claim frame for finding that according to the relaying of described the first broadcast frame and described the second broadcast frame indication field and media access control MAC head determine that described the first broadcast frame and described the second broadcast frame are all described request websites also, and when described receiving station is set to relay-type website, sends relaying to described request website and find response frame.
15. websites according to claim 14, is characterized in that, described the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point, and source address is the MAC Address of described request website.
16. according to claim 12 to the website described in 15 any one, it is characterized in that, in the coverage of described access point, comprise multiple receiving stations, described the first processing unit also obtains channel for described multiple receiving stations mode by free competition within the default response time, when described receiving station gets described channel within the described default response time, utilize described channel to send relaying to described request website and find claim frame, when described receiving station does not get described channel within the described default response time, abandon sending relaying to described request website and find claim frame.
17. according to claim 12 to the website described in 15 any one, it is characterized in that, described website also comprises:
The second processing unit, set up TDLS and set up claim frame for receiving the passage direct link that described request website sends, and set up acknowledgement frame to described request website transmission TDLS, set up the relaying relation of acknowledgement frame foundation and described receiving station according to described TDLS in order to described request website;
Transmitting element, carries described request website and described receiving station is the reporting information of relaying relation for sending to described access point, knows the relaying relation of described request website and described receiving station in order to described access point.
18. websites according to claim 12, is characterized in that, described website also comprises:
The 3rd processing unit, for being all that relaying is found claim frame when described the first broadcast frame and described the second broadcast frame, and described receiving station is not while being relay-type website, abandons described the first broadcast frame and described the second broadcast frame.
19. 1 kinds of websites, is characterized in that, described website comprises:
Transmitting element, for send the first broadcast frame to access point, and generates the second broadcast frame by described access point according to described the first broadcast frame, and receiving station in the coverage of described access point sends described the second broadcast frame;
Processing unit, the relaying discovery response frame sending for receiving described receiving station, and find that according to described relaying response frame determines whether to set up and described receiving station relaying relation.
20. websites according to claim 19, is characterized in that, described the first broadcast frame is identical with the frame structure of described the second broadcast frame, and the PHY head of described the first broadcast frame and described the second broadcast frame comprises described relaying discovery indication field; The MAC Address that receiver address in the media access control physical layer MAC head of described the first broadcast frame is described access point, transmitter address is the MAC Address of described request website, destination address is broadcast address; In the MAC head of described the second broadcast frame, receiver address is broadcast address, the MAC Address that transmitter address is described access point; Source address is the MAC Address of described request website.
21. according to the website described in claim 19 or 20, it is characterized in that, in the coverage of described access point, comprise multiple receiving stations, the relaying discovery response frame that described processing unit also sends for receive described multiple receiving station within the default response time, calculate each relaying and find the frame energy of response frame, after described calculating, obtain result of calculation, and from described result of calculation, choose receiving station that largest frames energy is corresponding and set up with it as described request website the receiving station of relaying relation.
22. websites according to claim 21, it is characterized in that, described processing unit is also set up claim frame for setting up TDLS to described receiving station sendaisle direct link, and the TDLS that receives described receiving station transmission sets up acknowledgement frame, set up the relaying relation of acknowledgement frame foundation and described receiving station according to described TDLS, and send and carry described request website and described receiving station is the reporting information of relaying relation to described access point, know the relaying relation of described request website and described receiving station in order to described access point.
The system of setting up of 23. 1 kinds of repeated links, is characterized in that, described method comprises: according to claim 12 to the website described in 18, according to claim 19 to the website described in 22, and access point.
CN201310146409.XA 2013-04-25 2013-04-25 Relay link establishing method, site, and system Pending CN104125652A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201310146409.XA CN104125652A (en) 2013-04-25 2013-04-25 Relay link establishing method, site, and system
PCT/CN2013/087459 WO2014173120A1 (en) 2013-04-25 2013-11-20 Establishing method, station and system of relay link

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310146409.XA CN104125652A (en) 2013-04-25 2013-04-25 Relay link establishing method, site, and system

Publications (1)

Publication Number Publication Date
CN104125652A true CN104125652A (en) 2014-10-29

Family

ID=51770881

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310146409.XA Pending CN104125652A (en) 2013-04-25 2013-04-25 Relay link establishing method, site, and system

Country Status (2)

Country Link
CN (1) CN104125652A (en)
WO (1) WO2014173120A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105809917A (en) * 2014-12-29 2016-07-27 中国移动通信集团公司 Method and device for transmitting messages of internet of things
CN106658662A (en) * 2016-12-30 2017-05-10 国网能源研究院 Wireless power supply communication method and system
CN107409279A (en) * 2015-03-13 2017-11-28 高通股份有限公司 All things on earth net equipment relaying is found and relay selection
CN109819689A (en) * 2017-09-22 2019-05-28 三菱电机株式会社 Communication system and communication means
CN109842440A (en) * 2017-11-27 2019-06-04 华为技术有限公司 A kind of communication means, communication node and system
CN110148293A (en) * 2019-06-06 2019-08-20 Oppo广东移动通信有限公司 Meter reading abnormality eliminating method and device, system, storage medium and electronic equipment
US11284329B2 (en) 2016-06-09 2022-03-22 Qualcomm Incorporated Device detection in mixed static and mobile device networks
CN114375611A (en) * 2020-07-31 2022-04-19 北京小米移动软件有限公司 Multi-connection communication method, device and computer readable storage medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116405928B (en) * 2021-03-15 2023-12-29 华为技术有限公司 Direct link addressing method and device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572935A (en) * 2008-04-28 2009-11-04 索尼株式会社 Wireless communication system, wireless communication apparatus, wireless communication method, and program
US20110103494A1 (en) * 2006-10-17 2011-05-05 Sassan Ahmadi Frame structure for support of large delay spread deployment scenarios
CN102523628A (en) * 2011-12-23 2012-06-27 华为终端有限公司 Wireless relay equipment and relaying method thereof
US9125179B2 (en) * 2009-06-10 2015-09-01 Lg Electronics Inc. Method and apparatus for transmitting frame in wireless local area network (WLAN) system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011040763A2 (en) * 2009-09-29 2011-04-07 한국전자통신연구원 Method and apparatus for setting up a relay link in a wireless communication system
US20130235792A1 (en) * 2012-03-08 2013-09-12 Qualcomm Incorporated Systems and methods for establishing a connection setup through relays

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110103494A1 (en) * 2006-10-17 2011-05-05 Sassan Ahmadi Frame structure for support of large delay spread deployment scenarios
CN101572935A (en) * 2008-04-28 2009-11-04 索尼株式会社 Wireless communication system, wireless communication apparatus, wireless communication method, and program
US9125179B2 (en) * 2009-06-10 2015-09-01 Lg Electronics Inc. Method and apparatus for transmitting frame in wireless local area network (WLAN) system
CN102523628A (en) * 2011-12-23 2012-06-27 华为终端有限公司 Wireless relay equipment and relaying method thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105809917A (en) * 2014-12-29 2016-07-27 中国移动通信集团公司 Method and device for transmitting messages of internet of things
CN107409279B (en) * 2015-03-13 2020-09-08 高通股份有限公司 Relay discovery and relay selection for internet of everything devices
CN107409279A (en) * 2015-03-13 2017-11-28 高通股份有限公司 All things on earth net equipment relaying is found and relay selection
US11284329B2 (en) 2016-06-09 2022-03-22 Qualcomm Incorporated Device detection in mixed static and mobile device networks
CN106658662A (en) * 2016-12-30 2017-05-10 国网能源研究院 Wireless power supply communication method and system
CN109819689A (en) * 2017-09-22 2019-05-28 三菱电机株式会社 Communication system and communication means
CN109819689B (en) * 2017-09-22 2020-07-24 三菱电机株式会社 Communication system and communication method
CN109842440B (en) * 2017-11-27 2021-08-27 华为技术有限公司 Communication method, communication node and system
CN109842440A (en) * 2017-11-27 2019-06-04 华为技术有限公司 A kind of communication means, communication node and system
US11483058B2 (en) 2017-11-27 2022-10-25 Huawei Technologies Co., Ltd. Communication method, communications node, and system
CN110148293A (en) * 2019-06-06 2019-08-20 Oppo广东移动通信有限公司 Meter reading abnormality eliminating method and device, system, storage medium and electronic equipment
CN114375611A (en) * 2020-07-31 2022-04-19 北京小米移动软件有限公司 Multi-connection communication method, device and computer readable storage medium
CN114375611B (en) * 2020-07-31 2024-03-19 北京小米移动软件有限公司 Multi-connection communication method, device and computer readable storage medium

Also Published As

Publication number Publication date
WO2014173120A1 (en) 2014-10-30

Similar Documents

Publication Publication Date Title
CN104125652A (en) Relay link establishing method, site, and system
US11917507B2 (en) Method, apparatus and system for feedback information transmission between internet of vehicles devices
US10952138B2 (en) Machine type communication method, terminal, and base station
US20210298039A1 (en) Reference signal measurement method and terminal device
JP7462766B2 (en) Method and device for sidelink communications - Patents.com
CN102843755B (en) Power consumption saving method and site equipment
CN103580794B (en) Channel state information reporting method, base station and subscriber equipment
US20230239116A1 (en) Data Communication Method and Related Apparatus
CN103220788A (en) Method for grouping nodes, node and access point
JP7440645B2 (en) Method and device for sidelink communication
CN104508996A (en) Connection establishment method, device and system
WO2022152108A1 (en) Collaborative information sending method, resource determination method, communication node, and storage medium
WO2019191985A1 (en) Method and apparatus for transmitting and receiving information
WO2021219139A1 (en) Communication method and apparatus
WO2021068209A1 (en) Methods for sending and receiving data, apparatus, terminal, and storage medium
CN103491516A (en) Control signal transmission method and base station
KR20220045218A (en) Energy saving display method and device thereof
CN110177097A (en) Data transmission method, apparatus and system
CN104956750A (en) Resource indication method, apparatus and system
WO2021114043A1 (en) Device-to-device communication method and communication apparatus
CN104995957A (en) Communication method, network-side device and communication system
AU2019469004A1 (en) Power adjustment method and apparatus
WO2021239113A1 (en) Data transmission method and apparatus
WO2022077467A1 (en) Method and apparatus for resource determination
CN113133096B (en) Information determination method, device, equipment and computer readable storage medium

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
AD01 Patent right deemed abandoned
AD01 Patent right deemed abandoned

Effective date of abandoning: 20181019