CN105450253A - Data transmission method and node for common-frequency simultaneous full duplex node - Google Patents
Data transmission method and node for common-frequency simultaneous full duplex node Download PDFInfo
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- CN105450253A CN105450253A CN201510873866.8A CN201510873866A CN105450253A CN 105450253 A CN105450253 A CN 105450253A CN 201510873866 A CN201510873866 A CN 201510873866A CN 105450253 A CN105450253 A CN 105450253A
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- antenna
- full duplex
- node
- transmitting
- duplex node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0825—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
Abstract
The invention provides a data transmission method and node for a common-frequency simultaneous full duplex node. The method comprises the following steps: dividing an antenna system of the common-frequency simultaneous full duplex node into a first antenna system and a second antenna system, wherein the first antenna system comprises a receiving antenna and a first receiving system, and the second antenna system comprises a sending antenna, a sending system and a second receiving system; and when the sending system has no data to be sent, switching the sending antenna to the second receiving system, for enabling the second receiving system to receive data by the sending antenna. By adopting the method provided by the invention, when the sending antenna of the common-frequency simultaneous full duplex node does not send data, the sending antenna can be connected to the receiving system by switch control to complete a data receiving function, in order to improve the receiving ability of the node, and then the overall data transmission ability and the working efficiency of the node are improved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of data transmission method with full duplex node while of frequently and node.
Background technology
So-called with full duplex while of frequently, refer to that transceiver transmits carry out uplink and downlink signals on identical running time-frequency resource while, namely by eliminating the interference of its own transmission machine signal at the receiver place of full duplex node, transmitting simultaneously, the homogenous frequency signal from another node is received.
Traditional same frequency simultaneously full duplex node antennas system comprises reception antenna and transmitting antenna, adopt the methods such as isolation is offset, simulation counteracting, digital cancellation to reduce full duplex node between reception antenna and transmitting antenna and send signal impact to received signal, work while realizing transmission and reception, reception antenna is connected with receiving system, only responsible data receiver; Transmitting antenna is connected with transmitting system, and only responsible data send.
Due in practical application, the working condition of full duplex node, as shown in Figure 3.The period that reception antenna and transmitting antenna work simultaneously only accounts for the part of total working period, and a period of time only has reception antenna or only has transmitting antenna work in addition.At present, along with the variation of internet, applications, the continuous increase of upstream traffic proportion in wlan network; In addition, the existence of a large amount of up management frames, situation full duplex node not being received to data is little, and a large amount of management frames can cause interference to the transmission of full duplex AP node downlink data.How to improve the overall receiving ability of node, increase work efficiency and become a problem demanding prompt solution.
Summary of the invention
In view of the above problems, the present invention proposes a kind of same frequency data transmission method of full duplex node and node simultaneously overcoming the problems referred to above or solve at least in part or slow down the problems referred to above, improve the data transmission capabilities with full duplex node simultaneously frequently.
According to an aspect of the present invention, provide a kind of data transmission method with frequently simultaneously full duplex node, the method comprises: by with frequently simultaneously the antenna system of full duplex node be divided into first day wire system and the second antenna system; Wherein, described first day wire system comprises reception antenna and the first receiving system, and the second antenna system comprises transmitting antenna, transmitting system and the second receiving system;
When described transmitting system does not have data to be sent, described transmitting antenna is switched to described second receiving system, utilizes described transmitting antenna to carry out data receiver to make described second antenna system.
Wherein, described method also comprises:
When needs carry out data transmission, described transmitting antenna is switched to described transmitting system, utilizes described transmitting antenna to carry out data transmission to make described second antenna system.
Wherein, described method also comprises:
Interference Cancellation is carried out to first day wire system and the second antenna system.
Wherein, described Interference Cancellation comprises isolation counteracting, simulation counteracting and digital cancellation.
According to another aspect of the present invention, provide one with full duplex node while of frequently, described same frequency simultaneously full duplex node comprises first day wire system and the second antenna system; Wherein, described first day wire system comprises reception antenna and the first receiving system, and the second antenna system comprises transmitting antenna, transmitting system and the second receiving system;
Described second antenna system also comprises switch control unit, when described transmitting system does not have data to be sent, described transmitting antenna is switched to described second receiving system by described switch control unit, utilizes described transmitting antenna to carry out data receiver to make described second antenna system.
Wherein, described switch control unit, time also for carrying out data transmission when needs, is switched to described transmitting system by described transmitting antenna, utilizes described transmitting antenna to carry out data transmission to make described second antenna system.
Wherein, the while of described same frequency, full duplex node also comprises:
Interference Cancellation control unit, for carrying out Interference Cancellation to first day wire system and the second antenna system.
Wherein, described Interference Cancellation control unit is offset by isolation, simulation is offset and digital cancellation carries out Interference Cancellation to first day wire system and the second antenna system.
Beneficial effect of the present invention is:
Data transmission method with full duplex node while of frequently provided by the invention and node, by increasing the setting of receiving system and switching control function for the transmitting antenna of full duplex node, make transmitting antenna with frequently simultaneously full duplex node when transmitting system does not have data to be sent, pass through switching controls, be connected to receiving system, complete data receiver function, improve the receiving ability of node, and then improve overall data transmittability and the operating efficiency of node.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram with the data transmission method of full duplex node while of frequently of the embodiment of the present invention;
A kind of flow chart with the data transmission method of full duplex node while of frequently of Fig. 2 embodiment of the present invention;
Fig. 3 is the working condition schematic diagram of tradition with full duplex node while of frequently;
Fig. 4 is the working condition schematic diagram of the same frequency that proposes of the present invention full duplex node simultaneously;
Fig. 5 is a kind of structural representation with full duplex node while of frequently of the embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in specification of the present invention " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology), have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary, should be understood to that there is the meaning consistent with the meaning in the context of prior art, unless and by specific definitions, otherwise can not explain by idealized or too formal implication.
Due to the sudden of data volume in network and imbalance, be greatly affected with full duplex node operating efficiency while of frequently.Under normal circumstances, the situation that the sending and receiving antenna of full duplex node works simultaneously only some, when not sending data, how to utilize idle transmitting antenna better to provide service, becoming and improving the data transmission capabilities of full duplex node and the key issue of operating efficiency further.
For this reason, the invention provides a kind of data transmission method with full duplex node while of frequently and co-channel full duplex node, making transmitting antenna can carry out data receiver when not sending data, improve with frequency full duplex node receiving ability and operating efficiency simultaneously; And because WLAN node receiving system is relatively simple, price is low, energy consumption is little, integration degree is high, and area is little, increase this part function little for the impact such as cost, energy consumption, volume, weight of WLAN node.
Fig. 1 shows a kind of schematic diagram with the data transmission method of full duplex node while of frequently of the embodiment of the present invention.
Reference Fig. 1, the data transmission method of full duplex node while of the same frequency that the embodiment of the present invention proposes, is divided into first day wire system and the second antenna system by with the antenna system of full duplex node while of frequently; Wherein, described first day wire system comprises reception antenna and the first receiving system, and the second antenna system comprises transmitting antenna, transmitting system and the second receiving system.
By switching controls, in the second antenna system, transmitting antenna can carry out switching and connect between transmitting system and second receiving system of setting up.
Fig. 2 shows a kind of flow chart with the data transmission method of full duplex node while of frequently of the embodiment of the present invention, and as shown in Figure 2, this data transmission method, comprising:
S11, judge whether described transmitting system has data to be sent;
S12, when described transmitting system does not have data to be sent, described transmitting antenna is switched to described second receiving system, utilizes described transmitting antenna to carry out data receiver to make described second antenna system.
Further, described method also comprises following not shown step S13:
S13, when needs carry out data send time, described transmitting antenna is switched to described transmitting system, utilizes described transmitting antenna to carry out data transmission to make described second antenna system.
In the embodiment of the present invention, pass through switching controls, in second antenna system, transmitting antenna can carry out switching and connect between transmitting system and second receiving system of setting up, namely switching controls is passed through, the function that second antenna system completes can be changed between transmission data and reception data, when transmitting system does not have data to be sent, by switching, transmitting antenna can be connected with the second receiving system, complete data receiver function, improve the receiving ability of node, and then improve whole work efficiency.
The working condition of traditional full duplex node shown in Fig. 3, as shown in Figure 3, the period that reception antenna and transmitting antenna work simultaneously only accounts for the part of total working period, and a period of time only has reception antenna or only has transmitting antenna work in addition.When the while of the same frequency that Fig. 4 is shown adopts the present invention to propose, the data transmission method of full duplex node carries out transfer of data, the working condition of full duplex node, as shown in Figure 4, when transmitting antenna is not when sending data, can be connected with the second receiving system by switching, complete data receiver function, improve the receiving ability of node, and then improve whole work efficiency.
Further, described method also comprises:
Interference Cancellation is carried out to first day wire system and the second antenna system.
Wherein, described Interference Cancellation comprises isolation counteracting, simulation counteracting and digital cancellation.
The present invention is in embodiment, comprises Interference Cancellation between first day wire system and the second antenna system, and then reduces the interference between dual-mode antenna.Concrete, Interference Cancellation can comprise isolation and offset, simulates counteracting, digital cancellation etc.
Fig. 5 shows a kind of structural representation with full duplex node while of frequently of the embodiment of the present invention.
As shown in Figure 5, the invention provides one with full duplex node while of frequently, described same frequency simultaneously full duplex node comprises first day wire system 101 and the second antenna system 102; Wherein, described first day wire system 101 comprises reception antenna and the first receiving system, and the second antenna system 102 comprises transmitting antenna, transmitting system and the second receiving system;
Described second antenna system also comprises switch control unit, and described switch control unit is for judging whether described transmitting system has data to be sent; When described transmitting system does not have data to be sent, described transmitting antenna is switched to described second receiving system, utilizes described transmitting antenna to carry out data receiver to make described second antenna system.
Further, described switch control unit, time also for carrying out data transmission when needs, is switched to described transmitting system by described transmitting antenna, utilizes described transmitting antenna to carry out data transmission to make described second antenna system.
Wherein, the while of described same frequency, full duplex node also comprises:
Interference Cancellation control unit, for carrying out Interference Cancellation to first day wire system and the second antenna system.
Wherein, described Interference Cancellation control unit is offset by isolation, simulation is offset and digital cancellation carries out Interference Cancellation to first day wire system and the second antenna system.
In the embodiment of the present invention, by switch control unit, the transmitting antenna controlled in the second antenna system is connected with the second receiving system or transmitting system.First day wire system completes the receiving function of data; Second antenna system completes sending function or the receiving function of data; Switch control unit controls the second antenna system as required, makes it complete receiving function or sending function.
Interference Cancellation between first day wire system and second day antenna system comprises isolating offsets, simulates and offset and digital cancellation.And, when first day wire system, the second antenna system all realize receiving function, because isolation is offset, certain diversity gain can be brought, improve receiving ability further.
In sum, data transmission method with full duplex node while of frequently provided by the invention and node, by increasing the setting of receiving system and switching control function for the transmitting antenna of full duplex node, make transmitting antenna with frequently simultaneously full duplex node when transmitting system does not have data to be sent, by switching controls, be connected to receiving system, complete data receiver function, improve the receiving ability of node, and then improve overall data transmittability and the operating efficiency of node.
Because WLAN node receiving system is relatively simple, price is low, energy consumption is little, integration degree is high, and area is little, increases this part function little for the impact such as cost, energy consumption, volume, weight of WLAN node.In addition, offset minimizing interference due to isolation can be carried out between full duplex node dual-mode antenna, after transmitting antenna switches to reception antenna, also can bring certain diversity gain, improve receiving ability further.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1., with a data transmission method for frequently simultaneously full duplex node, it is characterized in that, by with frequently simultaneously the antenna system of full duplex node be divided into first day wire system and the second antenna system; Wherein, described first day wire system comprises reception antenna and the first receiving system, and the second antenna system comprises transmitting antenna, transmitting system and the second receiving system; The method comprises:
When described transmitting system does not have data to be sent, described transmitting antenna is switched to described second receiving system, utilizes described transmitting antenna to carry out data receiver to make described second antenna system.
2. method according to claim 1, is characterized in that, described method also comprises:
When needs carry out data transmission, described transmitting antenna is switched to described transmitting system, utilizes described transmitting antenna to carry out data transmission to make described second antenna system.
3. method according to claim 1, is characterized in that, described method also comprises:
Interference Cancellation is carried out to first day wire system and the second antenna system.
4. method according to claim 3, is characterized in that, described Interference Cancellation comprises isolation and offsets, simulates and offset and digital cancellation.
5. with the full duplex node while of frequently, it is characterized in that, described same frequency simultaneously full duplex node comprises first day wire system and the second antenna system; Wherein, described first day wire system comprises reception antenna and the first receiving system, and the second antenna system comprises transmitting antenna, transmitting system and the second receiving system;
Described second antenna system also comprises switch control unit, when described transmitting system does not have data to be sent, described transmitting antenna is switched to described second receiving system by described switch control unit, utilizes described transmitting antenna to carry out data receiver to make described second antenna system.
6. according to claim 5 with full duplex node while of frequently, it is characterized in that, described switch control unit, time also for carrying out data transmission when needs, described transmitting antenna is switched to described transmitting system, utilizes described transmitting antenna to carry out data transmission to make described second antenna system.
7. same frequency according to claim 5 full duplex node simultaneously, it is characterized in that, the while of described same frequency, full duplex node also comprises:
Interference Cancellation control unit, for carrying out Interference Cancellation to first day wire system and the second antenna system.
8. full duplex node while of same frequency according to claim 7, is characterized in that, described Interference Cancellation control unit is offset by isolation, simulate counteracting and digital cancellation carries out Interference Cancellation to first day wire system and the second antenna system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510873866.8A CN105450253A (en) | 2015-12-02 | 2015-12-02 | Data transmission method and node for common-frequency simultaneous full duplex node |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510873866.8A CN105450253A (en) | 2015-12-02 | 2015-12-02 | Data transmission method and node for common-frequency simultaneous full duplex node |
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| CN105450253A true CN105450253A (en) | 2016-03-30 |
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| CN201510873866.8A Pending CN105450253A (en) | 2015-12-02 | 2015-12-02 | Data transmission method and node for common-frequency simultaneous full duplex node |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387012A (en) * | 2011-10-12 | 2012-03-21 | 北京创毅视讯科技有限公司 | Method for transmitting data on half-duplex bus and interface device |
| CN102648586A (en) * | 2009-12-07 | 2012-08-22 | 株式会社Ntt都科摩 | Wireless communication device |
| CN103595520A (en) * | 2012-08-16 | 2014-02-19 | 华为技术有限公司 | Communication device and space-division duplex method thereof |
| CN103746719A (en) * | 2013-12-20 | 2014-04-23 | 广州市缔客航海设备有限公司 | Intelligent maritime radio telephone |
| US20150003339A1 (en) * | 2013-07-01 | 2015-01-01 | Industrial Technology Research Institute | Electronic device and data control method |
-
2015
- 2015-12-02 CN CN201510873866.8A patent/CN105450253A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648586A (en) * | 2009-12-07 | 2012-08-22 | 株式会社Ntt都科摩 | Wireless communication device |
| CN102387012A (en) * | 2011-10-12 | 2012-03-21 | 北京创毅视讯科技有限公司 | Method for transmitting data on half-duplex bus and interface device |
| CN103595520A (en) * | 2012-08-16 | 2014-02-19 | 华为技术有限公司 | Communication device and space-division duplex method thereof |
| US20150003339A1 (en) * | 2013-07-01 | 2015-01-01 | Industrial Technology Research Institute | Electronic device and data control method |
| CN103746719A (en) * | 2013-12-20 | 2014-04-23 | 广州市缔客航海设备有限公司 | Intelligent maritime radio telephone |
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Application publication date: 20160330 |