CN102595608B - Frequency allocation method for Internet of Things and access gateway of Internet of Things - Google Patents
Frequency allocation method for Internet of Things and access gateway of Internet of Things Download PDFInfo
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Abstract
The invention provides a frequency allocation method for Internet of Things and an access gateway of Internet of Things. The method comprises the following steps: the access gateway of Internet of Things detects an idle frequency band available for a sensing extension layer in a maximal frequency band scope determined by a radio frequency identification capability of the access gateway of Internet of Things; the access gateway of Internet of Things obtains a data transmission characteristic of a node having a requirement of business transmission in the sensing extension layer from a business support platform of Internet of Things; and the access gateway of Internet of Things allocates the idle frequency band for the node according to the data transmission characteristic. According to the invention, the idle frequency band is determined first, and then the idle frequency band is allocated according to the data transmission characteristics of the node having the requirement of business transmission, thereby solving the problem of interference among different wireless signals caused by randomly accessing an ISM (industrial scientific medical) frequency band, and ensuring the communication quality.
Description
Technical field
The present invention relates to a kind of Internet of Things frequency allocation method and access gateway of internet of things, belong to Internet of Things communication technical field.
Background technology
Internet of Things (Internet of Things, be called for short: be IOT) a kind of transducer and sensor network technique, communication network and Internet technology, intelligent computing etc. to be combined together, take and realize the network of comprehensive perception, connection physical world that reliably transmission, Intelligent treatment are feature.The basic framework of existing Internet of Things as shown in Figure 1, mainly comprises: perception extended layer, network layer and application layer.Wherein:
Perception extended layer is positioned at the bottom of Internet of Things framework, realize data perception, collection, processing and the transmission of application-oriented environment, mainly comprise access gateway of internet of things, internet-of-things terminal, and tip network, internet-of-things terminal wherein for example can comprise that (Radio FrequencyIdentification is called for short: RFID) terminal and retail terminal etc. for bar code terminal, radio frequency identification.
Network layer mainly provides network insertion and the network processes control ability of internet of things service by wireless, wired Access Network, and the enabling capabilities of internet of things service layer is provided, specifically comprise internet of things service support platform, telecommunications network, the Internet and trade Special Network etc.;
Application layer mainly provides Internet of Things sector application, individual and family's related service and application, mainly by Internet of Things application server realizing.
Yet prior art is not considered working in coordination with between various wireless communication technology when the various terminal distribution Internet of Things frequency range in perception extended layer.For example, short-distance wireless communication technology in perception extended layer between related each terminal mainly contains RFID, bluetooth, IEEE 802.11 etc., the radio band of these utilizations is for example industrial science medical treatment (Industrial Scientific Medical, be called for short: ISM) frequency range, because ISM band is unauthorized frequency range, terminal only need to be observed certain transmitting power just can freely access use, due to when access and do not know whether used frequency is taken by other wireless signals, therefore can aggravate the interference between different wireless signal.
Summary of the invention
The invention provides a kind of Internet of Things frequency allocation method and access gateway of internet of things, in order to overcome the interference between different wireless signal in perception extended layer.
One aspect of the present invention provides a kind of Internet of Things frequency allocation method, wherein, comprising:
The access gateway of internet of things idle frequency range that detection senses extended layer can be used in the determined maximum band limits of its rfid capability;
From internet of things service support platform, obtain the Data Transmission Feature that has the node of business transmission demand described perception extended layer;
According to described Data Transmission Feature, be that described node distributes described idle frequency range.
The present invention provides a kind of access gateway of internet of things on the other hand, wherein, comprising:
Detection module, for the idle frequency range that in the determined maximum band limits of the rfid capability at access gateway of internet of things, detection senses extended layer can be used;
Acquisition module, has business to transmit the Data Transmission Feature of the node of demand for obtain described perception extended layer from internet of things service support platform;
Distribution module is that described node distributes the described idle frequency range being detected by detection module for the described Data Transmission Feature obtaining according to acquisition module.
The present invention is by first detecting idle frequency range then according to there being the Data Transmission Feature of the node of business transmission demand to distribute described idle frequency range, overcome the interference between the different wireless signal causing due to random access radio band in prior art, thereby guaranteed communication quality.
Accompanying drawing explanation
Fig. 1 is the configuration diagram of existing Internet of Things;
Fig. 2 is the flow chart of Internet of Things frequency allocation embodiment of the method for the present invention;
Fig. 3 is the particular flow sheet of the step 110 in method shown in Fig. 2;
Fig. 4 is the spectrogram for example in method shown in Fig. 3;
Fig. 5 is the particular flow sheet of the step 130 in method shown in Fig. 2;
Fig. 6 is the annexation schematic diagram of each node described in method shown in Fig. 5;
Fig. 7 is the example schematic of idle frequency sub-band of the present invention;
Fig. 8 is the structural representation of access gateway of internet of things embodiment of the present invention;
Fig. 9 is the concrete structure schematic diagram of detection module 10 shown in Fig. 8;
Figure 10 is the concrete structure schematic diagram of distribution module 30 shown in Fig. 8.
Embodiment
Fig. 2 is the flow chart of Internet of Things frequency allocation embodiment of the method for the present invention, as shown in the figure, comprises the steps:
Step 110, the access gateway of internet of things idle frequency range that detection senses extended layer can be used in the determined maximum band limits of its rfid capability.
Wherein, described access gateway of internet of things is the equipment that is operated in perception extended layer, for realizing the gateway exchange of data; Described idle frequency range is there is no occupied frequency range, and the testing process of concrete idle frequency range will describe in detail in subsequent content.
Particularly, triggering described access gateway of internet of things starts to detect described idle frequency range and can have various ways: a kind of mode is that predefined detection triggers constantly, can be periodically, also be acyclic, described access gateway of internet of things starts to detect described idle frequency range when default detection triggering arrives constantly; Another kind of mode is according to the frequency range of need to sending of business transmission, to detect instruction by internet of things service support platform, and described access gateway of internet of things starts to detect described idle frequency range when receiving the frequency range detection instruction of being sent by internet of things service support platform.
Step 120, described access gateway of internet of things obtains from internet of things service support platform the Data Transmission Feature that has the node of business transmission demand described perception extended layer.
Wherein, described Data Transmission Feature, such as comprising data traffic characteristic and data delay characteristic etc., if data traffic characteristic shows the larger bandwidth of transfer of data needs of this node, will be the wider idle frequency sub-band of this node distribution in subsequent step; When if data delay characteristic shows that the transfer of data of this node can't stand larger time delay, will in subsequent step, be preferably this node and distribute idle frequency sub-band; Described internet of things service support platform is that the equipment of network layer for providing miscellaneous service to support is provided, therefore know a certain service needed by which node participation business is transmitted, in addition, in described internet of things service support platform, also preserve the log-on message of each node in perception extended layer, therefore also know the Data Transmission Feature of each node.
Step 130, described access gateway of internet of things is that described node distributes described idle frequency range according to described Data Transmission Feature.Detailed process will be introduced in subsequent content.
Described in the present embodiment, method is by first detecting idle frequency range then according to there being the Data Transmission Feature of the node of business transmission demand to distribute described idle frequency range, overcome the interference between the different wireless signal causing due to random access radio band in prior art, thereby guaranteed communication quality.
Referring to Fig. 3, describe the concrete testing process of idle frequency range described in above-mentioned steps 110 in detail, as shown in the figure, comprise the steps:
Step 111, access gateway of internet of things detects radio frequency signal in described maximum band limits.
Wherein, described maximum band limits refers to the maximum band limits that access gateway of internet of things can detect, and by the rfid capability of access gateway of internet of things, is determined.For example, for the f1 shown in Fig. 4 represents the maximum band limits of described access gateway of internet of things to the band limits of f2; Described radio frequency signal not only comprises the radio frequency signal that in Internet of Things, each node sends, also comprise the radio frequency signal based on other communication technologys, specifically can adopt the modes such as energy measuring, matched filtering detection, cyclostationary characteristic detection described radio frequency signal to be detected.
It should be noted that herein, described maximum band limits frequency range to be detected can comprise ISM band and open non-ISM band, that is to say, the present embodiment not only can be used the ISM band of existing Internet of Things, and can use the non-ISM band of other opening.By expanding available band limits, can provide more available resources for perception extended layer, overcome the restriction of existing ISM band shortage of resources, improved the utilance of frequency spectrum resource.
Step 112, described access gateway of internet of things is searched frequency spectrum cavity-pocket according to described radio frequency signal, and described frequency spectrum cavity-pocket is carried out to wireless scene analysis, obtains scene analysis result;
Wherein, described frequency spectrum cavity-pocket refers to the frequency range not taken by useful signal, for example, in Fig. 4, retrieve a frequency spectrum cavity-pocket A and a frequency spectrum cavity-pocket B.
Particularly, described wireless scene analysis comprises flow analysis, noise analysis and interference analysis.Wherein, flow analysis refers to which kind of type is the service traffics that once take this frequency spectrum cavity-pocket belong to, if belong to the flow of continuous type, show that this frequency spectrum cavity-pocket is the of short duration free time, probably shared by follow-up flow soon, therefore do not advise choosing this frequency spectrum cavity-pocket as idle frequency range, to avoid conflict; If belong to the flow of discontinuous form, show that this frequency spectrum cavity-pocket will be all idle within one relatively long period, the possibility therefore clashing is less, and this frequency spectrum cavity-pocket can be used as alternative idle frequency range.
Described noise analysis refers to the noise level of analyzing this frequency spectrum cavity-pocket, as the level of background noise, if the noise level analyzing has surpassed the degrees of tolerance of perception extended layer, does not select this frequency spectrum cavity-pocket; Described interference analysis refers to the impact of useful signal on perception extended layer of analyzing other networks except Internet of Things, if the interference analyzing has surpassed the degrees of tolerance of perception extended layer, does not select this frequency spectrum cavity-pocket.
Step 113, described access gateway of internet of things is estimated channel capacity according to described scene analysis result.
Wherein, described channel capacity refers to the transmittability of channel, only relevant with signal to noise ratio, there is no direct relation with which service traffics of transmission, therefore, specifically can estimate described channel capacity according to the analysis result of described noise analysis and interference analysis.
Step 114, described access gateway of internet of things is determined described idle frequency range according to described scene analysis result and described channel capacity from described frequency spectrum cavity-pocket.
For example, suppose to learn that by flow analysis service traffics corresponding to frequency spectrum cavity-pocket A in Fig. 4 belong to discontinuous form flow, by noise analysis and interference analysis, learn that the noise level that this frequency spectrum cavity-pocket is corresponding is lower, it is less to disturb, and channel capacity also meets the demands, therefore elected as the idle frequency range that described perception extended layer can be used; And frequency spectrum cavity-pocket B can not meet above-mentioned requirements completely, be not therefore chosen as idle frequency range.
Referring to Fig. 5, describe the concrete assigning process of idle frequency range described in above-mentioned steps 130 in detail, as shown in the figure, comprise the steps:
Step 131, described access gateway of internet of things, according to the Data Transmission Feature of described node, selects to be applicable to the idle frequency sub-band of this node from described idle frequency range.
As shown in Figure 6, in described perception extended layer, comprise following several node: isolated node s3, can be directly and access gateway of internet of things carry out radio communication, example is bar code terminal etc. as shown in Figure 1; Gateway node s4, access gateway of internet of things eat dishes without rice or wine interface module logically, also can be considered as a kind of node; Aggregation node s2, the status in root node in tip network, realizes each node in tip network and the communication connection of s4; Sensing node s5, by the object of various transducers and short-distance wireless communication technology perception reality; Via node s1, realizes the communication connection between s5 and s2; Wherein, the tip network shown in the common pie graph 1 of s1, s2 and s5.
Wherein, in above-mentioned each node, only have aggregation node s2, isolated node s3 and gateway node s4 just need to take described idle frequency range, a node does not take whole idle frequency range, but only takies one of them idle frequency sub-band.Described idle frequency sub-band refers to a part of frequency range of using for giving a node in described idle frequency range, as shown in Figure 7, idle frequency sub-band A2 is assigned to aggregation node s2, and idle frequency sub-band A3 is assigned to isolated node s3, and idle frequency sub-band A3 is assigned to gateway node s4.
Step 132, described access gateway of internet of things is selected assigned work frequency in described idle frequency sub-band.
Particularly, described assigned work frequency can be for example the center frequency point of described idle frequency sub-band.
Step 133, described access gateway of internet of things is set as described assigned work frequency by the working frequency points of the air interface of described node.
Particularly, the air interface of above-mentioned aggregation node s2, isolated node s3 and gateway node s4 is set as to corresponding assigned work frequency.
Fig. 8 is the structural representation of access gateway of internet of things embodiment of the present invention, and in order to realize said method, as shown in the figure, this access gateway of internet of things comprises: detection module 10, acquisition module 20 and distribution module 30, and its operation principle is as follows:
By the detection module 10 idle frequency range that detection senses extended layer can be used in the determined maximum band limits of rfid capability of access gateway of internet of things; Acquisition module 20 obtains from internet of things service support platform the Data Transmission Feature that has the node of business transmission demand described perception extended layer; The described Data Transmission Feature that distribution module 30 is obtained according to acquisition module 20 is that described node distributes the described idle frequency range being detected by detection module 10.
Wherein, described idle frequency range is there is no occupied frequency range, particularly, as shown in Figure 9, this detection module 10 detects the radio frequency signal in default frequency range to be detected by detecting unit 11 in described maximum band limits, and wherein, described maximum band limits can comprise ISM band and open non-ISM band, to improve the utilance of frequency spectrum resource, concrete for example can be referring to Fig. 4 and related description thereof;
Then by searching the described radio frequency signal that unit 12 detects according to detecting unit 11, search frequency spectrum cavity-pocket, and described frequency spectrum cavity-pocket is carried out to wireless scene analysis, obtain scene analysis result, this wireless scene analysis specifically comprises flow analysis, noise analysis and interference analysis; After this by estimation unit 13, according to described scene analysis result, estimate channel capacity, specifically can estimate described channel capacity according to the analysis result of described noise analysis and interference analysis;
After this by determining unit 14, according to searching the described channel capacity that described scene analysis result that unit 12 obtains and estimation unit 13 obtain, from described frequency spectrum cavity-pocket, determine described idle frequency range.
As shown in figure 10, described distribution module 30 comprises: Frequency Band Selection unit 31, frequency selected cell 32 and frequency setup unit 33, and its operation principle is as follows:
The Data Transmission Feature of the described node that Frequency Band Selection unit 31 obtains according to acquisition module 20, from described idle frequency range, selection is applicable to the idle frequency sub-band of this node, and concrete for example can be referring to Fig. 6 and related description thereof; Then in the described idle frequency sub-band of being selected in Frequency Band Selection unit 31 by frequency selected cell 32, select assigned work frequency, particularly, described assigned work frequency can be for example the center frequency point of described idle frequency sub-band; Finally by frequency setup unit 33, the working frequency points of the air interface of described node is set as to the described assigned work frequency that frequency selected cell is selected.
Described in the present embodiment, access gateway of internet of things is by first detecting idle frequency range then according to there being the Data Transmission Feature of the node of business transmission demand to distribute described idle frequency range, overcome the interference between the different wireless signal causing due to random access radio band in prior art, thereby guaranteed communication quality.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. an Internet of Things frequency allocation method, is characterized in that, comprising:
The access gateway of internet of things idle frequency range that detection senses extended layer can be used in the determined maximum band limits of its rfid capability;
Described access gateway of internet of things obtains from internet of things service support platform the Data Transmission Feature that has the node of business transmission demand described perception extended layer;
Described access gateway of internet of things is that described node distributes described idle frequency range according to described Data Transmission Feature;
Wherein, described access gateway of internet of things in the determined maximum band limits of its rfid capability detection senses extended layer can with idle frequency range comprise: access gateway of internet of things detects radio frequency signal in described maximum band limits; According to described radio frequency signal, search frequency spectrum cavity-pocket, and described frequency spectrum cavity-pocket is carried out to wireless scene analysis, obtain scene analysis result; According to described scene analysis result, estimate channel capacity; According to described scene analysis result and described channel capacity, from described frequency spectrum cavity-pocket, determine described idle frequency range.
2. method according to claim 1, is characterized in that, described in carry out wireless scene analysis and comprise: carry out flow analysis, noise analysis and interference analysis.
3. method according to claim 2, is characterized in that, described estimation channel capacity comprises: according to the analysis result of described noise analysis and interference analysis, estimate described channel capacity.
4. method according to claim 1, is characterized in that, for described node distributes described idle frequency range, comprises:
According to the Data Transmission Feature of described node, from described idle frequency range, select to be applicable to the idle frequency sub-band of this node;
In described idle frequency sub-band, select assigned work frequency;
The working frequency points of the air interface of described node is set as to described assigned work frequency.
5. method according to claim 4, it is characterized in that, the described idle frequency sub-band that is applicable to this node of selecting from described idle frequency range according to the Data Transmission Feature of described node comprises: according to the data traffic characteristic of described node and data delay characteristic, select to be applicable to the idle frequency sub-band of this node from described idle frequency range.
6. according to the method described in any one in claim 3～5, it is characterized in that: described maximum band limits comprises industrial science medical treatment ISM band and open non-ISM band.
7. method according to claim 1, it is characterized in that, described access gateway of internet of things in the determined maximum band limits of its rfid capability detection senses extended layer can with idle frequency range comprise: described access gateway of internet of things starts to detect described idle frequency range while constantly arriving when default detection triggers; Or when receiving the frequency range detection instruction of being sent by internet of things service support platform, start to detect described idle frequency range.
8. an access gateway of internet of things, is characterized in that, comprising:
Detection module, for the idle frequency range that in the determined maximum band limits of the rfid capability at access gateway of internet of things, detection senses extended layer can be used;
Acquisition module, has business to transmit the Data Transmission Feature of the node of demand for obtain described perception extended layer from internet of things service support platform;
Distribution module is that described node distributes the described idle frequency range being detected by detection module for the described Data Transmission Feature obtaining according to acquisition module;
Wherein, described detection module comprises: detecting unit, for detect radio frequency signal in described maximum band limits; Search unit, for the described radio frequency signal detecting according to detecting unit, search frequency spectrum cavity-pocket, and described frequency spectrum cavity-pocket is carried out to wireless scene analysis, obtain scene analysis result; Estimation unit, for estimating channel capacity according to described scene analysis result; Determining unit, for determining described idle frequency range according to searching the described channel capacity that described scene analysis result that unit obtains and estimation unit obtain from described frequency spectrum cavity-pocket.
9. access gateway of internet of things according to claim 8, is characterized in that, described distribution module comprises:
The idle frequency sub-band of this node for the Data Transmission Feature of the described node that obtains according to acquisition module, is selected to be applicable in Frequency Band Selection unit from described idle frequency range;
Frequency selected cell, selects assigned work frequency for the described idle frequency sub-band of selecting in Frequency Band Selection unit;
Frequency setup unit, the described assigned work frequency of selecting for the working frequency points of the air interface of described node being set as to frequency selected cell.
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| US20160100023A1 (en) * | 2014-10-06 | 2016-04-07 | Belkin International Inc. | Proxy device for reducing number of connections to gateway |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105764071A (en) * | 2014-12-18 | 2016-07-13 | 镇江坤泉电子科技有限公司 | Data service perception system based on Internet of things |
| CN105959962B (en) * | 2016-07-08 | 2019-10-25 | 锐捷网络股份有限公司 | A kind of wide area network communication means and device |
| CN108737949A (en) * | 2017-04-14 | 2018-11-02 | 展讯通信（上海）有限公司 | Bluetooth equipment and its method for avoiding WiFi system from interfering and Bluetooth system |
| CN107197443B (en) * | 2017-06-21 | 2020-09-25 | 深圳市盛路物联通讯技术有限公司 | Data transmission control method and system based on Internet of things |
| JP7383144B2 (en) * | 2019-11-08 | 2023-11-17 | 小米通訊技術有限公司 | Method and apparatus for indicating the status of a frequency band; Method and apparatus for determining the status of a frequency band |
| CN112600732A (en) * | 2020-12-09 | 2021-04-02 | 广州技象科技有限公司 | Data transmission method, device and system based on data margin and storage medium |
| CN112929901B (en) * | 2021-01-22 | 2022-04-12 | 厦门四信通信科技有限公司 | Adaptive configuration method, device and equipment of gateway and readable storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945397A (en) * | 2010-09-07 | 2011-01-12 | 南京邮电大学 | Game theory-based graded pricing frequency spectrum resource management method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8150420B2 (en) * | 2008-09-05 | 2012-04-03 | Lg Electronics Inc. | Mobile station assisted location based service |
-
2012
- 2012-02-16 CN CN201210035641.1A patent/CN102595608B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945397A (en) * | 2010-09-07 | 2011-01-12 | 南京邮电大学 | Game theory-based graded pricing frequency spectrum resource management method |
Non-Patent Citations (2)
| Title |
|---|
| Spectrum sensing model for wireless internet of things;Wen Zhigang;《中国通信》;20110131;摘要，第1部分 * |
| Wen Zhigang.Spectrum sensing model for wireless internet of things.《中国通信》.2011,摘要，第1部分. * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160100023A1 (en) * | 2014-10-06 | 2016-04-07 | Belkin International Inc. | Proxy device for reducing number of connections to gateway |
| US10075547B2 (en) | 2014-10-06 | 2018-09-11 | Belkin International Inc. | Proxy device for reducing number of connections to gateway |
| US10075548B2 (en) * | 2014-10-06 | 2018-09-11 | Belkin International, Inc. | Proxy device for reducing number of connections to gateway |
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