WO2013177972A1 - 一种数据发送、转发方法、装置和系统 - Google Patents
一种数据发送、转发方法、装置和系统 Download PDFInfo
- Publication number
- WO2013177972A1 WO2013177972A1 PCT/CN2013/073237 CN2013073237W WO2013177972A1 WO 2013177972 A1 WO2013177972 A1 WO 2013177972A1 CN 2013073237 W CN2013073237 W CN 2013073237W WO 2013177972 A1 WO2013177972 A1 WO 2013177972A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data frame
- relay
- relay point
- point
- information bit
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 101100172132 Mus musculus Eif3a gene Proteins 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 230000006854 communication Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
-
- 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
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
- H04W40/10—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources based on available power or energy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
-
- 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
Definitions
- the present invention relates to the field of communications, and in particular, to a data transmission and forwarding method, apparatus, and system.
- BSS basic service set
- AP Access Point
- the prior art provides a process for assigning a relay (Relay) to a station that needs to be relayed.
- the solution is to set up a fixed Relay for a relay site, and then the data sent by the site is forwarded through the Relay.
- connection process between the site and Relay is given in the prior art, and there is no communication process after the site and Relay are connected. Moreover, the prior art sets a fixed Relay solution. When the Relay site moves, the network topology changes, and then another Relay site needs to be assigned to the station (Station, STA). When the network topology changes rapidly, existing solutions need to establish connections repeatedly, which is inefficient. Summary of the invention
- Embodiments of the present invention provide a method, an apparatus, and a system for data transmission and forwarding, to solve a communication problem between a station and a terminal with limited power.
- An embodiment of the present invention provides a data sending method of a terminal, including: sending a data frame to a relay point, where the data frame includes a relay information bit, where the relay information bit is used to identify whether it is needed Transmitting, by the relay point, the data frame, if the relay information bit indicates that the relay point needs to forward the data frame, the data frame is forwarded by the relay point to an access point; A response message of the access point, the response message is used to indicate that the data frame is correctly received by the access point.
- An embodiment of the present invention provides a data forwarding method for a relay point, including: receiving a data frame sent by a terminal, where the data frame includes a relay information bit, where the relay information bit is used to identify whether the relay is needed. The point forwards the data frame; if the relay information bit indicates that relay point forwarding is required, the data frame is sent to the access point.
- the embodiment of the present invention provides a data sending terminal, where the terminal includes: a sending module and a receiving module; the sending module is configured to send a data frame to a relay point, where the data frame includes a relay information bit, The relay information bit is used to identify whether the relay point needs to forward the data frame, and if the relay information bit indicates that the relay point needs to forward the data frame, the data frame is used by the relay point. Forwarding to the access point; the receiving module is configured to receive a response message of the access point, where the response message is used to indicate that the data frame is correctly received by the access point.
- the embodiment of the present invention provides a relay point for data forwarding, where the relay point includes: a receiving module and a sending module, where the receiving module is configured to receive a data frame sent by the terminal, where the data frame includes a relay information bit.
- the relay information bit is used to identify whether the relay point needs to forward the data frame; the sending module is configured to send the data frame to an access point if the relay information bit indicates that relay point forwarding is needed. .
- the method and device for transmitting and forwarding data provide a method for information exchange between a terminal and an access point in a case where the terminal power is limited, so that the data sent by the power limited terminal reaches the access point.
- FIG. 1 is a flowchart of an embodiment of a data sending method of a terminal according to the present invention
- FIG. 2 is a flowchart of still another embodiment of a data sending method of a terminal according to the present invention.
- FIG. 4 is a flowchart of still another embodiment of a data sending method of a terminal according to the present invention.
- FIG. 5 is a flowchart of an embodiment of a data forwarding method of a relay point according to the present invention.
- FIG. 6 is a flowchart of still another embodiment of a data forwarding method of a relay point according to the present invention.
- FIG. 7 is a structural diagram of an embodiment of a data transmitting terminal according to the present invention.
- FIG. 8 is a structural diagram of an embodiment of a data transmitting terminal according to the present invention.
- FIG. 9 is a structural diagram of an embodiment of a relay point for data forwarding according to the present invention.
- FIG. 10 is a structural diagram of another embodiment of a relay point for data forwarding according to the present invention.
- FIG. 1 provides a flowchart of an embodiment of the present invention.
- the method includes: S101: sending a data frame to a relay point, where the data frame includes a relay information bit, where the relay information bit is used to identify whether the relay point needs to forward the data frame, if The relay information bit indicates that the relay point needs to forward the data frame, and the data frame is forwarded by the relay point to the access point; S103 receives the response message of the access point, and the response message is used by It is indicated that the data frame is correctly received by the access point.
- the data frame is discarded by the relay point.
- Figure 2 provides a flow chart of one embodiment of the present invention.
- the method further includes: S100 interacting with the relay point to select a relay point with the best quality; and the sending the data frame to the relay point includes: The selected relay point sends a data frame.
- the data frame further includes a relay point address information bit, where the relay point address information bit is used to carry address information of the selected relay point; and the S 103 sends data to the selected relay point.
- the frame includes: transmitting, to the selected relay point, a data frame including the relay point address information bit, so that if the relay point address information bit information is consistent with the address information of the selected relay point, The data frame is forwarded by the selected relay point to the access point.
- FIG. 3 provides a structure of a frame control header of a data frame in one embodiment of the present invention.
- the meaning of the address 3 field is redefined in the frame control header of the data frame, and the address 3 is used to carry the identifier of the Re 1 ay station, which may be the MAC address of the Re 1 a y site.
- Address 1 and Address 2 represent the address information of the transmitting terminal of the data frame and the target access point of the data frame, respectively.
- the Relay site Since the Relay site knows which site to link to when re-linking Relay, this information is also reported to the AP. Therefore, the Relay site can determine whether the site is pre-linked by the site address that requires Relay. The AP can also know which Relay site the frame is forwarded through, so the address 3 may not carry the information of the Relay site. At this point, you only need to add a bit to the frame control indicating that Relay is required.
- Figure 4 provides a flow chart of one embodiment of the present invention.
- the sending, by the S101, the data frame to the relay point includes: sending the number to the relay point by broadcasting According to the frame.
- This embodiment provides a data sending method that does not pre-select a forwarding relay point. When the network topology changes rapidly, the solution does not need to repeatedly select a relay point, and the efficiency is higher.
- the method further includes: if the response message of the access point is not received within the first duration, to the middle The data frame is retransmitted by the point, and the first duration is obtained according to twice the short frame interval duration, the slot duration, the data frame transmission duration, and the receiver initiated delay duration.
- ACKTimeout Interva l aSIFSTime*2 + aSlotTime+ aPPDUt ime + aPHY-RX- START- Delay.
- the ACKTimeout Interva l is used to indicate the first duration, and the aSIFSTime is the duration of a Short Inter-frame Space (SIFS); aS lotTime is the length of a slot defined in the 802.11 protocol, indicating Propagation delay; aPPDUt ime indicates the transmission duration of the data frame; aPHY-RX-START-Delay indicates the delay time of the receiver startup.
- the relay station forwards the frame, the network allocation vector (NAV) of the surrounding site is set, and the NAV indicates that another relay point other than the data frame relay point is sent, and then the relay point is sent. After the data frame is described, the data frame is sent for a waiting time.
- NAV network allocation vector
- Relay bi t indicates that a relay point needs to forward a data frame
- a surrounding station that is not a Relay station
- NAV SIFS + ACK + SIFS + aPPDUt ime
- SIFS represents a short frame spacing (Shor t Inter-frame Space, The duration of SIFS)
- ACK represents the first duration
- transmission duration of the data frame indicated by aPPDUt ime the transmission duration of the data frame indicated by aPPDUt ime.
- the method further includes: receiving the data frame forwarded by the relay point, if the relay point forwards The data frame is incorrect, and the data frame is resent to the relay point.
- FIG. 5 provides a flowchart of an embodiment of the present invention.
- the method includes: S501: receiving a data frame sent by the terminal, where the data frame includes a relay information bit, where the relay information bit is used to identify whether the relay is needed Point forwarding the data frame; S503: if the relay information bit indicates that relay point forwarding is required, the data frame is sent to the access point.
- the method further comprises discarding the data frame if the relay information bit indicates that no relay point forwarding is required.
- Figure 6 provides a flow chart of one embodiment of the present invention.
- the method further includes: S500 receiving, by the terminal, the information that the terminal selects the relay point; and the data frame sent by the receiving terminal includes: receiving, selecting, the relay point The data frame sent by the terminal.
- the data frame further includes a relay point address information bit, where the relay point address information bit is used to carry address information of the relay point;
- the data frame sent by the receiving terminal includes: a receiving station sent by the receiving terminal The data frame of the relay point address information bit is forwarded to the access point if the relay point address information bit information matches the address information of the relay point.
- the method further includes: S502 modifying the data frame.
- the relay information bit in the middle to prevent the data frame from being forwarded by other relay points.
- the AP does not care which Relay site the data frame is forwarded through, and the Relay site is transparent to the AP.
- the AP After receiving the frame, the AP sends an ACK and other confirmation information directly to the station that needs Relay after the SIFS duration.
- the sending the data frame to the access point includes: sending, after the short frame interval duration, sending the location to the access point The data frame.
- the CSMA/CA channel access mechanism accesses the channel by using a carrier sense multiple access technology with collision avoidance.
- FIG. 7 is a structural diagram of an embodiment of a data transmitting terminal according to the present invention.
- the terminal includes: a sending module 701, a receiving module 703; the sending module 701 is configured to send a data frame to the relay point, where the data frame includes a relay information bit, where the relay information bit is used to identify whether it is needed Transmitting, by the relay point, the data frame, if the relay information bit indicates that the relay point needs to forward the data frame, the data frame is forwarded by the relay point to an access point;
- the module 703 is configured to receive a response message of the access point, where the response message is used to indicate that the data frame is correctly received by the access point.
- the relay information bit indicates that the relay point is not required to forward the data frame, the data frame is discarded by the relay point.
- the terminal further includes a selection module 705.
- FIG. 8 is a structural diagram of another embodiment of the data transmitting terminal of the present invention.
- the selecting module 705 is configured to select a relay point with the best quality by interacting with the relay point before sending the data frame to the relay point; the sending module is configured to use the relay selected by the selecting module Point to send data frames.
- the data frame further includes a relay point address information bit, where the relay point address information bit is used to carry the address information of the selected relay point; the sending module is used to select the selected module. Sending, by the point, a data frame including the relay point address information bit, so that if the relay point address information bit information is consistent with the address information of the selected relay point, the data frame is selected by the The relay point is forwarded to the access point.
- the sending module 701 is configured to send a data frame to the relay point by broadcasting.
- the sending module 701 is further configured to: if the receiving module does not receive the response message of the access point in the first time period, resend the data frame to the relay point, where the first duration is twice The short frame interval duration, the slot duration, the transmission duration of the data frame, and the delay time of the receiver start are obtained.
- the receiving module 703 is further configured to: after the sending module sends a data frame to the relay point, receive the data frame that is forwarded by the relay point; the sending module 701 is further configured to: if the receiving module receives The data frame is incorrect, and the data frame is resent to the relay point.
- FIG. 9 is a structural diagram of an embodiment of a relay point for data forwarding according to the present invention.
- the relay point includes: a receiving module 901, a sending module 903, the receiving module 901 is configured to receive a data frame sent by the terminal, where the data frame includes a relay information bit, where the relay information bit is used to identify whether The relay point is required to forward the data frame; the sending module 903 is configured to send the data frame to the access point if the relay information bit indicates that relay point forwarding is needed.
- the data frame is discarded.
- the receiving module 901 is further configured to: before receiving the data frame sent by the terminal, receive the information that the terminal selects the relay point, and receive a data frame that is sent by the terminal that selects the relay point.
- the data frame further includes a relay point address information bit, where the relay point address information bit is used to carry address information of the relay point; and the receiving module 901 is configured to receive, by the terminal, the relay And a data frame of the address information bit, if the relay point address information bit information is consistent with the address information of the relay point, forwarding the data frame to the access point.
- FIG. 10 is a structural diagram of an embodiment of a relay point for data forwarding according to the present invention.
- the relay point further includes a modification module 905, where the modification module is configured to modify the relay information bit in the data frame to prevent the data frame from being forwarded by other relay points.
- the sending module is specifically configured to send the data frame to the access point after receiving a short frame interval duration when the data frame sent by the terminal is received from the receiving module.
- the sending module is configured to access the channel by using a carrier sense multiple access technology CSMA/CA channel access mechanism with collision avoidance after the receiving module receives the data frame sent by the terminal.
- a system for transmitting data according to an embodiment of the present invention is characterized in that the system includes the terminal according to any of the above embodiments and the relay point according to any of the above embodiments.
- modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment.
- the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13797659.3A EP2846585B1 (en) | 2012-05-26 | 2013-03-27 | Data transmitting and forwarding method, device, and system |
KR1020147035793A KR101644867B1 (ko) | 2012-05-26 | 2013-03-27 | 데이터 송신 방법 및 데이터 포워딩 방법, 장치, 및 시스템 |
BR112014029407-0A BR112014029407B1 (pt) | 2012-05-26 | 2013-03-27 | Método de envio de dados de um terminal, método de encaminhamento de dados de um repetidor, terminal de envio de dados e repetidor de encaminhamento de dados |
US14/553,490 US9510267B2 (en) | 2012-05-26 | 2014-11-25 | Data sending method, data forwarding method, apparatus, and system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210166763.4A CN103427944B (zh) | 2012-05-26 | 2012-05-26 | 一种数据发送、转发方法、装置和系统 |
CN201210166763.4 | 2012-05-26 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/553,490 Continuation US9510267B2 (en) | 2012-05-26 | 2014-11-25 | Data sending method, data forwarding method, apparatus, and system |
Publications (1)
Publication Number | Publication Date |
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WO2013177972A1 true WO2013177972A1 (zh) | 2013-12-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2013/073237 WO2013177972A1 (zh) | 2012-05-26 | 2013-03-27 | 一种数据发送、转发方法、装置和系统 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9510267B2 (zh) |
EP (1) | EP2846585B1 (zh) |
KR (1) | KR101644867B1 (zh) |
CN (2) | CN103427944B (zh) |
BR (1) | BR112014029407B1 (zh) |
WO (1) | WO2013177972A1 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103427944B (zh) * | 2012-05-26 | 2017-04-12 | 华为技术有限公司 | 一种数据发送、转发方法、装置和系统 |
WO2015106432A1 (en) * | 2014-01-17 | 2015-07-23 | Qualcomm Incorporated | Forwarding messages in a communication network |
EP3513597B1 (en) * | 2016-09-15 | 2023-07-12 | Telefonaktiebolaget LM Ericsson (publ) | Methods, first transmit device and relay device for supporting wireless communication |
CN107872838B (zh) * | 2016-09-27 | 2021-09-21 | 华为技术有限公司 | 中继指示方法及接入点ap |
WO2018103016A1 (zh) * | 2016-12-07 | 2018-06-14 | 广东欧珀移动通信有限公司 | 数据处理方法和设备 |
CN109842919B (zh) | 2017-11-28 | 2021-11-23 | 阿里巴巴集团控股有限公司 | 一种终端与基站的通信、终端的入网方法和装置 |
CN109217912B (zh) * | 2018-08-31 | 2021-07-09 | 航天东方红卫星有限公司 | 一种基于数据安全监管的多模式中继转发方法 |
CN113678554A (zh) * | 2019-03-28 | 2021-11-19 | 中兴通讯股份有限公司 | 协调多个接入点之间的联合传输 |
CN110262459B (zh) * | 2019-06-30 | 2021-08-20 | 潍柴动力股份有限公司 | 一种故障信息输出控制方法及系统 |
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2012
- 2012-05-26 CN CN201210166763.4A patent/CN103427944B/zh active Active
- 2012-05-26 CN CN201710189394.3A patent/CN106686558A/zh active Pending
-
2013
- 2013-03-27 BR BR112014029407-0A patent/BR112014029407B1/pt active IP Right Grant
- 2013-03-27 EP EP13797659.3A patent/EP2846585B1/en active Active
- 2013-03-27 KR KR1020147035793A patent/KR101644867B1/ko active IP Right Grant
- 2013-03-27 WO PCT/CN2013/073237 patent/WO2013177972A1/zh active Application Filing
-
2014
- 2014-11-25 US US14/553,490 patent/US9510267B2/en active Active
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Also Published As
Publication number | Publication date |
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US20150085736A1 (en) | 2015-03-26 |
KR20150021059A (ko) | 2015-02-27 |
EP2846585A1 (en) | 2015-03-11 |
BR112014029407B1 (pt) | 2022-10-04 |
EP2846585B1 (en) | 2018-05-23 |
CN106686558A (zh) | 2017-05-17 |
BR112014029407A8 (pt) | 2021-06-15 |
CN103427944B (zh) | 2017-04-12 |
KR101644867B1 (ko) | 2016-08-02 |
CN103427944A (zh) | 2013-12-04 |
EP2846585A4 (en) | 2015-09-09 |
BR112014029407A2 (pt) | 2017-06-27 |
US9510267B2 (en) | 2016-11-29 |
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