CN1753387A - Method of imlementing information broadcasting in radio communication network - Google Patents
Method of imlementing information broadcasting in radio communication network Download PDFInfo
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- CN1753387A CN1753387A CNA200410079276XA CN200410079276A CN1753387A CN 1753387 A CN1753387 A CN 1753387A CN A200410079276X A CNA200410079276X A CN A200410079276XA CN 200410079276 A CN200410079276 A CN 200410079276A CN 1753387 A CN1753387 A CN 1753387A
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- wireless terminal
- broadcast message
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
This invention puts forward a method for realizing information broadcast in the radio communication network, in which, a radio terminal as the broadcast source sends broadcast information to all one hop adjacent radio terminals with it containing information of said all one hop adjacent radio terminals, the terminals receiving the broadcast information obtain the information of radio terminals from all the received broadcast information to be compared with all the one hop adjacent radio information, the broadcast information is sent to all the one hop adjacent radio terminals haven't received the broadcast information to reduce the power loss of radio Ad hoc network broadcast.
Description
Technical field
The present invention relates to wireless communication field, especially relate to the technical field that realizes information broadcast in the cordless communication network.
Background technology
Ad hoc network is a kind of network that special purpose is arranged, and wherein the meaning of Ad Hoc is " for this ", amplifies to be " for this purpose only ", i.e. " for certain purpose is provided with, special " meaning.The provisional autonomous system of the multi-hop that Ad hoc network is made up of one group of wireless terminal that has a wireless transmitter, wireless terminal has routing function, can constitute network topology arbitrarily by wireless connections, this network can work alone, and also can be connected with Internet or cellular radio.
In the Ad hoc network, each wireless terminal has both router and two kinds of functions of main frame: as main frame, terminal needs running face to application program of user; As router, terminal need be moved corresponding Routing Protocol, participates in packet forward and route maintenance work according to routing policy and routing table.In Ad hoc network, the route between wireless terminal is made up of a plurality of network segments (jumping) usually because the radio transmission range of terminal is limited, two can't direct communication the terminal wireless terminal often to realize communication by the forwarding of a plurality of intermediary wireless terminals.So, its be otherwise known as multi-hop wireless net, self-organizing network, infrastructureless network or peer-to-peer network.Ad hoc network possesses the characteristics of radio communication and computer network simultaneously, can be regarded as a kind of wireless computer communication network of specific type.
Compare with other conventional communication networks, Ad hoc network has following distinguishing feature:
No center and self-organization: do not have absolute control centre in the Ad hoc network, all wireless terminals equal, wireless terminal in the network is coordinated each other behavior by distributed algorithm, need not manual intervention and any network facilities that other presets, can be at any time rapid deployment and automatic network-building Anywhere.Because the redundancy of the distributed nature of network, wireless terminal and do not have single point failure point makes that the robustness of network and survivability are fine.
Automatically configuration: configuration is the essential characteristic of Ad hoc network automatically, and wireless terminal must detect the service that other wireless terminal and they can provide.Because the network dynamic change, layoutprocedure need guarantee that network can operate as normal automatically, and this relates to the replacing of the gateway wireless terminal that connects Internet, the renewal of bunch head etc.Form the stage at network, wireless terminal can be held consultation with regard to network topology (star, annular, point-to-point, put multiple spot, plane and classification), and this depends on the type of network, the wireless technology and the demands of applications of bottom.
The network topology of dynamic change: in the Ad hoc network, wireless terminal can be wireless in net with arbitrary speed and any-mode, and can close the radio station at any time, the influence of composite factors such as the antenna type that adds wireless base station apparatus is varied, interfering with each other between the variation of transmitted power, wireless channel, landform and weather, the network topology that forms by wireless channel between wireless terminal may change at any time, and the mode that changes and speed all are difficult to prediction.
Limited wireless transmission bandwidth: Ad hoc network using Radio Transmission Technology is as the bottom communication means, because the physical characteristic of wireless channel itself, the relative wire message way of the network bandwidth that it can provide is much lower.In addition, consider the multiple factors such as conflict, signal attenuation, noise and interchannel interference that the competition sharing wireless channel produces, the actual bandwidth that wireless terminal obtains is far smaller than theoretic maximum bandwidth.
The limitation of wireless terminal: in the Ad hoc network, wireless terminal has benefits such as easy to carry, portable and smart, but also there is inherent shortcoming, for example the energy is limited, internal memory is less, cpu performance is lower etc., thereby bring certain degree of difficulty to the application programming exploitation, peripheral hardwares such as while screen are less, are unfavorable for carrying out function than complicated service.
Fail safe is relatively poor: Ad hoc network is a kind of special wireless wireless network, because adopt technology such as wireless channel, power-limited, distributed control, it is more prone to be subjected to passive wiretapping, initiatively invasion, denial of service, deprives network attacks such as " sleeps ".Single channel encryption, anti-interference, authentification of user and other safety measure all need special consideration.
In wireless Ad hoc network, since the restriction of emission power of wireless terminal, the limited coverage area of wireless terminal.When it will communicate with the wireless terminal outside its coverage, need the forwarding of intermediary wireless terminal.And the multi-hop route in the Ad hoc network is finished by common wireless terminal cooperation, rather than finish by the routing device of special use.
As shown in Figure 1, share broadcast principles for the multi-hop of wireless Ad hoc network.In wireless Ad hoc network, broadcast channel is that multi-hop is shared the i.e. transmission of a wireless terminal, having only one to jump adjacent wireless terminal can receive, the wireless terminal of receiving information is then issued its again and is jumped adjacent wireless terminal, so goes on, thereby realizes broadcast capability.
Owing to share broadcasting, a lot of wireless terminals have been received the broadcast message that repeats, terminals consume more energy, the stand-by time of terminal is reduced; And the wireless environment interference is also relatively more serious, thereby influence Ad hoc network communication quality.
Summary of the invention
The objective of the invention is to propose to realize in a kind of cordless communication network the method for information broadcast, can reduce the power consumption of wireless Ad hoc Web broadcast, make the terminal standby time elongated, reduced interference wireless environment.
For this reason, the present invention is by the following technical solutions:
The method that realizes information broadcast in a kind of cordless communication network may further comprise the steps:
A, one jump adjacent wireless terminal and send broadcast message to all, include described all information of jumping adjacent wireless terminal in the described broadcast message as the wireless terminal of broadcast source;
B, receive that the wireless terminal of broadcast message obtains the information that all have received the wireless terminal of broadcast message from broadcast message;
C, the wireless terminal of receiving broadcast message have received that the information of the wireless terminal of broadcast message jumps adjacent wireless terminal information with all and one and compare to all;
D, the wireless terminal of receiving broadcast message send to broadcast message all that do not receive broadcast message and jump adjacent wireless terminals with one, and repeating step b is to steps d again.
The wireless terminal of receiving broadcast message described in the steps d adopts smart antenna broadcast message to be sent to all wireless terminals adjacent with the one jumping of not receiving broadcast message.
Described wireless terminal includes wireless transmitter.
Described cordless communication network is a kind of network of multi-hop.
Described cordless communication network can be a star, also can be annular.
Adopted the present invention, owing to attached the information that sends wireless terminal in the broadcast message, after receiving broadcast message, a wireless terminal sent wireless terminal information and the adjacent wireless terminal information of a jumping of self more, only broadcast message is sent to the wireless terminal that does not also have transmission, thereby can reduce the power consumption of Wireless Ad hoc Network broadcasting, make the terminal standby time elongated, reduced interference wireless environment.
Description of drawings
Fig. 1 is the schematic diagram that the wireless network multi-hop is shared broadcasting in the prior art;
Fig. 2 is the schematic diagram that the wireless network multi-hop is shared broadcasting among the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
As shown in Figure 2, the wireless terminal 1 that includes wireless transmitter is a broadcast source, and it is ready for sending broadcast message, includes the information of all wireless terminals adjacent with the one jumping in broadcast message, comprises wireless terminal 2, wireless terminal 3 and wireless terminal 4; After wireless terminal 2 is received the broadcast message that wireless terminal 1 sends, obtain to have received the wireless terminal information of this broadcast message, comprise wireless terminal 1, wireless terminal 3 and wireless terminal 4 from broadcast message; Wireless terminal 2 finds all and one to jump the information of adjacent wireless terminal again, comprises wireless terminal 1, wireless terminal 3, wireless terminal 4, wireless terminal 5 and wireless terminal 6; Wireless terminal 2 is compared the wireless terminal information of receiving this broadcast message and all with the information that one is jumped adjacent wireless terminal, find to also have wireless terminal 5 and wireless terminal 6 not to receive this broadcast message; Wireless terminal 2 utilizes intelligent antenna technology or other wireless technologys that this broadcast message is only sent to wireless terminal 5 and wireless terminal 6 then; Wireless terminal 5 or wireless terminal 6 send to broadcast message the wireless terminal that other do not receive this broadcast message successively according to such scheme again, until covering whole network.
Owing to attached the information that sends wireless terminal in the broadcast message, after receiving broadcast message, a wireless terminal sent wireless terminal information and the adjacent wireless terminal information of a jumping of self more, only broadcast message is sent to the wireless terminal that does not also have transmission, thereby can reduce the power consumption of wireless Ad hoc Web broadcast, make the terminal standby time elongated, reduced interference wireless environment.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (5)
1, realize the method for information broadcast in a kind of cordless communication network, it is characterized in that may further comprise the steps:
A, one jump adjacent wireless terminal and send broadcast message to all, include described all information of jumping adjacent wireless terminal in the described broadcast message as the wireless terminal of broadcast source;
B, receive that the wireless terminal of broadcast message obtains the information that all have received the wireless terminal of broadcast message from broadcast message;
C, the wireless terminal of receiving broadcast message have received that the information of the wireless terminal of broadcast message jumps adjacent wireless terminal information with all and one and compare to all;
D, the wireless terminal of receiving broadcast message send to broadcast message all that do not receive broadcast message and jump adjacent wireless terminals with one, and repeating step b is to steps d again.
2, the method for claim 1 is characterized in that: the wireless terminal of receiving broadcast message described in the steps d adopts smart antenna broadcast message to be sent to all wireless terminals adjacent with the one jumping of not receiving broadcast message.
3, the method for claim 1 is characterized in that: described wireless terminal includes wireless transmitter.
4, the method for claim 1 is characterized in that: described cordless communication network is a kind of network of multi-hop.
5, method as claimed in claim 4 is characterized in that: described cordless communication network can be a star, also can be annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200410079276XA CN1753387A (en) | 2004-09-26 | 2004-09-26 | Method of imlementing information broadcasting in radio communication network |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200410079276XA CN1753387A (en) | 2004-09-26 | 2004-09-26 | Method of imlementing information broadcasting in radio communication network |
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| CN1753387A true CN1753387A (en) | 2006-03-29 |
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| CNA200410079276XA Pending CN1753387A (en) | 2004-09-26 | 2004-09-26 | Method of imlementing information broadcasting in radio communication network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166132B (en) * | 2006-10-16 | 2011-09-28 | 冲电气工业株式会社 | Unauthorized terminal estimating system, unauthorized terminal estimating device, and communications terminal device |
| CN101051865B (en) * | 2007-03-26 | 2011-10-26 | 中兴通讯股份有限公司 | Broadcasting method on network composed of baseband resource pool and remote end radio frequency unit |
| CN102752883A (en) * | 2012-06-18 | 2012-10-24 | 中兴通讯股份有限公司 | Communication system and communication method based on point-to-point network |
-
2004
- 2004-09-26 CN CNA200410079276XA patent/CN1753387A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166132B (en) * | 2006-10-16 | 2011-09-28 | 冲电气工业株式会社 | Unauthorized terminal estimating system, unauthorized terminal estimating device, and communications terminal device |
| CN101051865B (en) * | 2007-03-26 | 2011-10-26 | 中兴通讯股份有限公司 | Broadcasting method on network composed of baseband resource pool and remote end radio frequency unit |
| CN102752883A (en) * | 2012-06-18 | 2012-10-24 | 中兴通讯股份有限公司 | Communication system and communication method based on point-to-point network |
| WO2013189130A1 (en) * | 2012-06-18 | 2013-12-27 | 中兴通讯股份有限公司 | Communication system and communication method based on ad hoc network |
| CN102752883B (en) * | 2012-06-18 | 2018-09-25 | 南京中兴软件有限责任公司 | A kind of communication system and the means of communication based on point to point network |
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Open date: 20060329 |