CN101686478B - Idle frequency spectrum test method, device and system - Google Patents
Idle frequency spectrum test method, device and system Download PDFInfo
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- CN101686478B CN101686478B CN2008102229700A CN200810222970A CN101686478B CN 101686478 B CN101686478 B CN 101686478B CN 2008102229700 A CN2008102229700 A CN 2008102229700A CN 200810222970 A CN200810222970 A CN 200810222970A CN 101686478 B CN101686478 B CN 101686478B
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Abstract
The invention provides an idle frequency spectrum test method, a device and a system, wherein, the idle frequency spectrum test method comprises the following steps: secondary equipment receives downgoing signals of a base station of main equipment; and the downgoing signals are decoded according to the identification information for identifying resource allocation information of the main equipment in the downgoing signals to obtain the idle frequency spectrum resource information of the main equipment. The above idle frequency spectrum test method, the device and the system can accurately and efficiently obtain the idle frequency spectrum resource information of the main equipment, and effectively increase the use ratio of frequency spectrum by decoding the downgoing signals of the main equipment,; meanwhile, the interference of the secondary equipment to the main equipment are better prevented by ways of ensuring that the transmitted power of the secondary equipment is less than the transmitted power of the main equipment or setting a protective belt and the like.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of idle frequency spectrum detecting method, Apparatus and system.
Background technology
Along with the continuous development of the communication technology, wireless communication technology has also obtained fast development, but the usable spectrum resource of keeping radio communication is limited, and along with increasing of wireless application, radio spectrum resources is in short supply day by day.Therefore, improve the wireless frequency spectrum utilance and become one of major issue of present radio communication urgent need solution.
At present, the wireless frequency spectrum of various countries all is according to the fixing method of salary distribution, frequency spectrum is divided into the frequency range of a section non-overlapping copies, and distributes to specific operator to carry out specific wireless application, and these equipment that obtained wireless frequency spectrum are referred to as authorisation device.The spectrum measurement result shows that according to this method of salary distribution, radio band is not utilized by 100%, and in the specific time, specific place has only a spot of frequency spectrum to be utilized.Therefore, in recent years, people had proposed the mechanism that opportunistic spectrum inserts; Perhaps be called cognitive radio; In this mechanism, will obtain the usufructuary equipment of mandate frequency range and be called main equipment, the equipment of the frequency range of not obtaining the authorization is called secondary device; When secondary device detects not by the shared idle frequence resource of main equipment, utilize detected idle frequency spectrum resource to realize the radio communication between the secondary device.
The existing method of knowing idle frequency spectrum mainly is to adopt the method that detects; Energy measuring for example; Matched filter detection etc.; But the inventor states in the technical scheme on the implementation and finds: there are some defectives in above-mentioned detection method, and for example because above-mentioned detection method is subject to the ability of equipment, the precision of detection is limited.In order to improve accuracy of detection, generally can increase detection time, and the increase of detection time can make secondary device at the usable spectrum change frequency than under the situation faster, can't detect the real-time change of frequency spectrum, thereby forfeiture detects the chance of idle frequency spectrum.In addition, above-mentioned detection method is difficult to estimate the free time of idle frequency spectrum, thereby; Might be before idle frequency spectrum be taken by main equipment; Secondary device has just discharged idle frequency spectrum, thereby has reduced the availability of frequency spectrum, perhaps after idle frequency spectrum is taken by main equipment; And secondary device does not also withdraw from, thereby main equipment is caused interference.Adopt above-mentioned detection method, be difficult to utilize and insert the idle time slot of (TDMA) system, the idle frequency spectrum of frequency division multiple access access (FDMA) system or the resources such as bell idles that code division multiple access inserts (CDMA) system like time division multiple access; On the other hand, in cellular radio Communication system, wireless resource allocation is by base station to determine; And notice main equipment; Inform the main equipment base station can be sent downstream signal in which the partial frequency spectrum resource that takies which time period, also can inform main equipment, and which partial frequency spectrum resource main equipment will adopt send upward signal; And above-mentioned information is not effectively utilized by secondary device in existing scheme.
Summary of the invention
The object of the invention is to provide a kind of idle frequency spectrum detecting method, Apparatus and system, to decode through the downstream signal to main equipment, obtains the idle frequency spectrum resource information of main equipment, thereby improves the utilance of frequency spectrum effectively.
According to an aspect of the present invention, a kind of idle frequency spectrum detecting method is provided, this method comprises:
Receive the downstream signal of main equipment base station;
Identification information according to being used to identify the main equipment resource allocation information in the said downstream signal is decoded to said downstream signal, obtains the idle frequency spectrum resource information of said main equipment.
According to a further aspect in the invention, a kind of idle frequency spectrum checkout gear is provided, this device comprises:
Receiving element is used to receive the downstream signal of main equipment base station;
Decoding unit, the identification information that is used for being used to identify according to said downstream signal the main equipment resource allocation information is decoded to said downstream signal, obtains the idle frequency spectrum resource information of said main equipment.
In accordance with a further aspect of the present invention, a kind of idle frequency spectrum detection system is provided, this system comprises:
The base station is used for sending downstream signal to main equipment;
The idle frequency spectrum checkout gear; Be used to receive the said downstream signal that send to said main equipment said base station; And according to the identification information that is used to identify the main equipment resource allocation information in the said downstream signal said downstream signal is decoded, obtain the idle frequency spectrum resource information of said main equipment.
Above-mentioned idle frequency spectrum detecting method, Apparatus and system are decoded through the downstream signal to main equipment, can obtain the idle frequency spectrum resource information of main equipment accurately and efficiently, thereby can improve the utilance of frequency spectrum effectively.
Further specify the technical scheme of the embodiment of the invention below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of idle frequency spectrum detecting method embodiment one of the present invention;
Fig. 2 is the sketch map of cooperation transmission process embodiment of the present invention;
Fig. 3 is the flow chart of idle frequency spectrum detecting method embodiment two of the present invention;
Fig. 4 is the structural representation of idle frequency spectrum checkout gear embodiment of the present invention;
Fig. 5 is the structural representation of idle frequency spectrum detection system embodiment of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
As shown in Figure 1, be the flow chart of idle frequency spectrum detecting method embodiment one of the present invention, this method comprises:
The frequency range that step 101, secondary device scanning are supported self;
This step is an optional step, when secondary device has the wireless traffic demand, at first will search for the supported frequency range of self physics;
Suppose that frequency range used among this embodiment is minimum frequency range; Certainly the frequency range of other wireless traffics supported except that minimum frequency range all can;
Above-mentioned steps 102 is optional step with step 103; Secondary device is after having searched for self supported frequency range; Judge whether to exist idling-resource more than or equal to the shared minimum frequency range of wireless traffic to be sent; If exist, then send wireless traffic, otherwise receive the downstream signal of main equipment base station at idle channels;
The main equipment here comprises busy frequency range main equipment and idle frequency range main equipment;
Above-mentioned idle frequency spectrum resource information comprises the idle information of time slot, the information of running time-frequency resource free time, idle information how long or the like; Above-mentioned secondary device can utilize and be stored in downstream signal inner or that come the autonomous device base station, confirms the least unit of allocation of radio resources, and for example in 802.16 systems, smallest allocation unit is 1 frame;
This step is an optional step; Before carrying out this step; Secondary device can be confirmed the channel list of priority scan; The method of confirming comprises: the signal strength information that obtains each channel and each channel resource allocation information of main equipment of can correctly decoding, and confirm to send the scan channel priority list of wireless traffic in view of the above; Or, with the channel of the idle frequency spectrum resource of the main equipment that finds of last time of storage channel as this priority scan; Or, add up the number of times that each channel finds the idling-resource of main equipment, and, confirm to send the scan channel priority list of wireless traffic according to what of number of times; Can reduce professional transmission delay preferably according to the above-mentioned definite scan channel priority list or the channel order of priority scan;
For fear of secondary device other main equipments generations of cochannel are disturbed, can further be limited the maximum transmission power of secondary device; The maximum transmission power of secondary device can be set to fixed value, also can dynamically arrange.Provide a kind of dynamic setting method of secondary device maximum transmission power below, the basic thought of this method is the coverage that the emission maximum signal of secondary device can not surpass main equipment.Suppose that the main equipment descending power that secondary device receives is x dBm; The maximum transmission power that secondary device then can be set is (x-y) dBm, and wherein, y is an amount of redundancy; Default value is 0, and the maximum transmission power that secondary device promptly is set equals the descending power of the main equipment that secondary device receives; A kind of in addition method to set up of secondary device maximum transmission power is the low some dB of the fixing maximum transmission power than main equipment of the maximum transmission power of secondary device;
Main equipment is caused interference for fear of secondary device when the idle time slot that uses main equipment or idle sub-carrier or the free orthogonal sign indicating number; Require secondary device will leave enough boundary belts; Boundary belt is according to employed Radio Resource; Can be guard time, protection frequency band or protected code, the maximum transmitted time delay of synchronous precision, main equipment, secondary device wireless signal frequency spectrum masterplate etc. be relevant between the size of boundary belt and secondary device and the main equipment.Suppose that main equipment has adopted the OFDM modulation system; And secondary device has also adopted the OFDM modulation system of identical parameters; Then when the timing that guarantees secondary device and main equipment and frequency calibration precision reach certain value; Secondary device can use the idle subcarrier of main equipment, and under the ideal situation, can not have boundary belt.
In addition, the different business that above-mentioned main equipment and secondary device can be implemented for same terminal also can be multimode device.The different business of implementing for same terminal, for example, a micro-wave access global inter communication (Worldwide Interoperability for Microwave Access; WiMax)/(terminal receives the downstream signal of WiMax to Wireless Fidelity for Wireless Fidelity, dual-mode terminal WiFi); Downlink broadcast MAP message according to WiMax; Obtain the occupation condition of WiMax system in a frame, utilize the idle running time-frequency resource of WiMax system in the frame then, the signal of transmission WiFi; Be the situation of multimode device for main equipment and secondary device, for example comprise the transceiver of a main equipment and the transceiver of a secondary device; The secondary device that present embodiment adopted can be one and adopt software-defined radio (Software Defined Radio; SDR) or cognitive radio (Cognitive radio; CR) wireless device; This equipment can be according to the needs of reality, and the adjustment transceiver receives and sends to corresponding pattern.
Above-mentioned idle frequency spectrum detecting method can be applied to a lot of scenes, and the terminal of a GSM for example can be at the idle time slot of gsm system, to the other-end transmission text or the picture that close on; A kind of in addition typical application is a cooperation transmission, and for example at the idle time slot of system, first terminal is to the second terminal transmission wireless signal; As shown in Figure 2, Tx representes to send among the figure, and Rx representes to receive; The latter linked of Tx is the object of transmission information, and the latter linked of Rx is the main body of reception information, and for example TxMS2 representes to send to the data at second terminal; RxMS2 representes that second terminal receives data; Base station (BS) sends to the data at second terminal and first terminal respectively through channel, and second terminal and first terminal receive data separately respectively, but in free time that exists first terminal can be transmitted to second end message during (idle) channel; First terminal transmits information is given second terminal, and second terminal then utilizes the idle frequency spectrum resource at first terminal to receive this information.
The detection method of above-mentioned idle frequency spectrum is decoded through the downstream signal to main equipment, can obtain the idle frequency spectrum resource information of main equipment accurately and efficiently, has improved the utilance of frequency spectrum effectively; Simultaneously, be no more than the transmitting power of main equipment or mode such as boundary belt is set, avoided the interference of secondary device preferably main equipment through the transmitting power that guarantees secondary device.
As shown in Figure 3, be the flow chart of idle frequency spectrum detecting method embodiment two of the present invention, this method comprises:
The downstream signal of step 201, the busy frequency range main equipment of reception;
When the secondary device business has the wireless traffic demand, at first search for the frequency range of self supporting, if exist more than or equal to self idle frequency range of the shared frequency range of the wireless traffic that will send, then, carry out the transmission of wireless traffic in determined self idle frequency range; If no, then receive the downstream signal of busy frequency range main equipment, therefrom obtain the allocation of radio resources situation of the main equipment of this channel;
Secondary device can be according to the intensity of the signal of the channel of detected busy frequency range; Channel from the channel of highest signal strength to lowest signal intensity successively receives the downstream signal of respective channels, if can correctly receive the message of the Radio Resource spectrum allocation may of respective channels main equipment; Then therefrom seek idling-resource; Up to finding the available free resource, this step is identical with the method that the step 105 among the idle frequency spectrum detecting method embodiment one of the present invention is sought idling-resource, does not give unnecessary details at this; Or,
Secondary device can be according to the intensity of the signal of the channel of detected busy frequency range; Channel from the channel of lowest signal intensity to highest signal strength successively; If can correctly receive the message of the Radio Resource spectrum allocation may of respective channels main equipment; Receive the downstream signal of respective channels, seek idling-resource, up to finding the available free resource; Or,
Secondary device is selected busy channel according at random order, receives the main equipment downstream signal of respective channels, seeks idling-resource, up to finding the available free resource;
The Radio Resource that step 203, utilization are obtained carries out the transmission of wireless traffic;
If there is the Radio Resource of the free time that can support wireless traffic to be sent, comprise idle time slot, idle subcarrier, idle Radio Resources such as orthogonal code, then utilize the Radio Resource that is obtained, carry out the transmission of wireless traffic;
If can not correctly receive the radio resource assignment message of the main equipment of respective channels, perhaps looked for all channels also not find idling-resource, then abandon this wireless traffic transmission requests.
The detection method of above-mentioned idle frequency spectrum; Downstream signal through to main equipment is decoded; Can obtain to comprise that idle time slot, idle subcarrier or idle Radio Resources such as orthogonal code carry out the transmission of wireless traffic, thereby improved the utilance of frequency spectrum effectively.
Shown in Figure 4, be the structural representation of idle frequency spectrum checkout gear embodiment of the present invention, this device comprises: receiving element 11 is used to receive the downstream signal of main equipment base station; Decoding unit 12, the identification information that is used for being used to identify according to above-mentioned downstream signal the main equipment resource allocation information is decoded to above-mentioned downstream signal, obtains the idle frequency spectrum resource information of above-mentioned main equipment.
Wherein, above-mentioned idle frequency spectrum checkout gear can be secondary device, and this device can also comprise: judging unit 13, be used to scan the frequency range of self supporting, and judge whether to exist self idling-resource more than or equal to the shared frequency range of wireless traffic to be sent; Transmission unit 15 is used for when above-mentioned judging unit 13 is judged self idling-resource that exists more than or equal to the shared frequency range of wireless traffic to be sent, sends wireless traffic to be sent according to above-mentioned self idling-resource.In addition, when self idling-resource of not existing more than or equal to the shared frequency range of wireless traffic to be sent, receive the downstream signal of above-mentioned main equipment base station by above-mentioned receiving element 11.
In order to reduce professional transmission delay; Said apparatus can also comprise: confirm unit 14; The signal strength information that is used for after said judging unit 13 has scanned the frequency range of self supporting, obtaining each channel and each channel resource allocation information of main equipment of can correctly decoding, and confirm to send the scan channel priority list of wireless traffic; Or, with the channel of the idle frequency spectrum resource of the main equipment that finds of last time of storage channel as current priority scan; Or, add up the number of times that each channel finds the idling-resource of main equipment, and, confirm to send the scan channel priority list of wireless traffic according to what of number of times; And the scan channel priority list of confirming or the channel of this priority scan be sent to transmission unit 15.
Further, above-mentioned transmission unit 15 can also be used for according to the idle frequency spectrum resource information of the above-mentioned main equipment descending power transmission wireless traffic with the main equipment that is no more than reception.When above-mentioned idle frequency spectrum resource information comprises idle time slot or idle sub-carrier or free orthogonal sign indicating number; Above-mentioned transmission unit 15 can also be used for according to idle time slot or idle sub-carrier or free orthogonal sign indicating number boundary belt being set; And in the scope of above-mentioned boundary belt regulation, use the idle frequency spectrum resource transmission wireless traffic of main equipment.
The checkout gear of above-mentioned idle frequency spectrum; Utilize judging unit that the supported frequency range of secondary device is scanned; When not finding available idle frequency spectrum resource, receive the downstream signal of main equipment base station through receiving element, and utilize decoding unit that the downstream signal of main equipment is decoded; Thereby can obtain the idle frequency spectrum resource information of main equipment, thereby improve the utilance of frequency spectrum effectively; Simultaneously, before utilizing transmission unit transmission wireless traffic, secondary device also utilizes definite unit to confirm the channel of scan channel priority list or this priority scan, has reduced professional transmission delay preferably; In addition, transmission unit can also be used for the setting of being correlated with of the transmitting power of secondary device or boundary belt has been reduced the interference of secondary device to main equipment preferably.
As shown in Figure 5, be the structural representation of idle frequency spectrum detection system embodiment of the present invention, this system comprises: base station 2 is used for sending downstream signal to main equipment; Idle frequency spectrum checkout gear 1; Be used to receive the above-mentioned downstream signal that send to above-mentioned main equipment above-mentioned base station; And according to the identification information that is used to identify the main equipment resource allocation information in the above-mentioned downstream signal above-mentioned downstream signal is decoded, obtain the idle frequency spectrum resource information of above-mentioned main equipment.
Wherein, above-mentioned idle frequency spectrum checkout gear 1 can comprise receiving element 11 and decoding unit 12, and above-mentioned receiving element 11 is used to receive the downstream signal that send to main equipment above-mentioned base station; Decoding unit 12 is used for being used to identify according to above-mentioned downstream signal the identification information of main equipment resource allocation information decodes to above-mentioned downstream signal, obtains the idle frequency spectrum resource information of above-mentioned main equipment.
Above-mentioned idle frequency spectrum detection system through secondary device is decoded to the downstream signal of main equipment, can obtain the idle frequency spectrum resource information of main equipment accurately and efficiently, thereby can improve the utilance of frequency spectrum effectively.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random AccessMemory, RAM) etc.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (14)
1. an idle frequency spectrum detecting method is characterized in that, comprising:
Receive the downstream signal of main equipment base station;
Said downstream signal is decoded, obtain the idle frequency spectrum resource information of said main equipment according to the identification information that is used to identify the main equipment resource allocation information in the said downstream signal.
2. idle frequency spectrum detecting method according to claim 1 is characterized in that, comprises before the step of the downstream signal of said reception main equipment base station:
Scan the frequency range of self supporting; Judge whether to exist self idling-resource, if then send wireless traffic to be sent at said self idling-resource more than or equal to the shared frequency range of wireless traffic to be sent; Otherwise, receive the downstream signal of said main equipment base station.
3. idle frequency spectrum detecting method according to claim 1; It is characterized in that; Said said downstream signal is decoded, obtains according to the identification information that is used to identify the main equipment resource allocation information in the said downstream signal also to comprise after the step of idle frequency spectrum resource information of main equipment:
Idle frequency spectrum resource information transmission wireless traffic according to said main equipment.
4. idle frequency spectrum detecting method according to claim 3 is characterized in that, the step that said idle frequency spectrum resource information according to said main equipment is transmitted wireless traffic comprises before:
The signal strength information that obtains each channel and each channel resource allocation information of said main equipment of can correctly decoding, and confirm to send the scan channel priority list of wireless traffic; Or,
With the channel of the idle frequency spectrum resource of the main equipment that finds of last time of storage channel as current priority scan; Or,
Add up the number of times that each channel finds the idling-resource of main equipment, and, confirm to send the scan channel priority list of wireless traffic according to what of number of times.
5. idle frequency spectrum detecting method according to claim 4 is characterized in that, said idle frequency spectrum resource information comprises idle time slot or idle sub-carrier or free orthogonal sign indicating number, transmits wireless traffic according to the idle frequency spectrum resource information of said main equipment and comprises:
According to idle time slot or idle sub-carrier or free orthogonal sign indicating number boundary belt is set, and in the scope of said boundary belt regulation, uses the wireless traffic of the idle frequency spectrum resource transmission secondary device of said main equipment.
6. idle frequency spectrum detecting method according to claim 3 is characterized in that, said idle frequency spectrum resource information transmission wireless traffic according to said main equipment comprises:
Transmit the wireless traffic of said secondary device with the descending power of the said main equipment that is no more than reception according to the idle frequency spectrum resource information of said main equipment.
7. an idle frequency spectrum checkout gear is characterized in that, comprising:
Receiving element is used to receive the downstream signal of main equipment base station;
Decoding unit is used for said downstream signal is decoded, and obtains the idle frequency spectrum resource information of said main equipment according to the identification information that is used to identify the main equipment resource allocation information in the said downstream signal.
8. idle frequency spectrum checkout gear according to claim 7 is characterized in that, also comprises:
Judging unit is used to scan the frequency range of self supporting, judges whether to exist self idling-resource more than or equal to the shared frequency range of wireless traffic to be sent;
Transmission unit is used for when there is self idling-resource more than or equal to the shared frequency range of wireless traffic to be sent in said judgment unit judges, sends wireless traffic to be sent according to said self idling-resource.
9. idle frequency spectrum checkout gear according to claim 8; It is characterized in that; Said receiving element also is used for when there is not self idling-resource more than or equal to the shared frequency range of wireless traffic to be sent in said judgment unit judges, receiving the downstream signal of said main equipment base station.
10. idle frequency spectrum checkout gear according to claim 8 is characterized in that, also comprises:
Confirm the unit, the signal strength information that is used for after said judging unit has scanned the frequency range of self supporting, obtaining each channel and each channel resource allocation information of main equipment of can correctly decoding, and confirm to send the scan channel priority list of wireless traffic; Or, with the channel of the idle frequency spectrum resource of the main equipment that finds of last time of storage channel as current priority scan; Or, add up the number of times that each channel finds the idling-resource of main equipment, and, confirm to send the scan channel priority list of wireless traffic according to what of number of times; And the scan channel priority list of confirming or the channel of this priority scan be sent to transmission unit.
11. idle frequency spectrum checkout gear according to claim 10 is characterized in that, said transmission unit also is used for according to the idle frequency spectrum resource information of the said main equipment descending power transmission wireless traffic with the main equipment that is no more than reception.
12. idle frequency spectrum checkout gear according to claim 11; It is characterized in that; The idle frequency spectrum resource information of said main equipment comprises idle time slot or idle sub-carrier or free orthogonal sign indicating number; Said transmission unit also is used for according to idle time slot or idle sub-carrier or free orthogonal sign indicating number boundary belt being set, and in the scope of said boundary belt regulation, uses the idle frequency spectrum resource transmission wireless traffic of main equipment.
13. an idle frequency spectrum detection system is characterized in that, comprising:
The base station is used for sending downstream signal to main equipment;
The idle frequency spectrum checkout gear; Be used to receive the said downstream signal that send to said main equipment said base station; And said downstream signal decoded, obtain the idle frequency spectrum resource information of said main equipment according to the identification information that is used to identify the main equipment resource allocation information in the said downstream signal.
14. idle frequency spectrum detection system according to claim 13 is characterized in that, said idle frequency spectrum checkout gear comprises:
Receiving element is used to receive the said downstream signal that send to said main equipment said base station;
Decoding unit is used for said downstream signal is decoded, and obtains the idle frequency spectrum resource information of said main equipment according to the identification information that is used to identify the main equipment resource allocation information in the said downstream signal.
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| US8743779B2 (en) * | 2010-04-16 | 2014-06-03 | Qualcomm Incorporated | Systems, apparatus and methods to facilitate simultaneous traffic-idle or idle-idle demodulation |
| CN102523053B (en) * | 2011-12-06 | 2013-11-27 | 东南大学 | Spectrum analysis implementation method based on network cooperation processing |
| CN104796920B (en) * | 2014-01-16 | 2019-02-12 | 电信科学技术研究院 | Data transmission method, base station and terminal device |
| CN104811943A (en) * | 2014-01-24 | 2015-07-29 | 中兴通讯股份有限公司 | Method and device for spectrum resource configuration of cognitive radio system |
| CN103825636B (en) * | 2014-03-21 | 2018-11-16 | 台州职业技术学院 | Wireless device and communication means based on MIMO-OFDM, cooperation, cognition |
| CN111107640B (en) * | 2014-07-30 | 2023-11-21 | 华为技术有限公司 | Spectrum resource allocation method, main base station and auxiliary base station |
| CN105684488B (en) | 2014-07-31 | 2019-10-15 | 华为技术有限公司 | A kind of data transmission method and communication equipment |
| CN105611641B (en) * | 2015-12-29 | 2019-04-23 | 北京邮电大学 | A kind of multi-user's uplink dispatch method based on unlicensed spectrum |
| CN109691160B (en) * | 2016-08-19 | 2023-07-11 | 路晟（上海）科技有限公司 | Wireless anti-interference receiving and transmitting system |
| CN111565081A (en) * | 2020-04-28 | 2020-08-21 | 深圳中科国威信息系统技术有限公司 | Method, medium, terminal and device for scanning white spectrum frequency band in cognitive radio |
| CN114731704A (en) * | 2020-11-02 | 2022-07-08 | 北京小米移动软件有限公司 | Communication method, communication apparatus, electronic device, and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1901398A (en) * | 2006-06-30 | 2007-01-24 | 西安电子科技大学 | Dynamic frequency spectrum managing method based on frequency spectrum multiple use |
| CN101222284A (en) * | 2008-02-03 | 2008-07-16 | 北京创毅视讯科技有限公司 | Scheduling system and method for authorized management information in mobile multimedia broadcast |
-
2008
- 2008-09-24 CN CN2008102229700A patent/CN101686478B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1901398A (en) * | 2006-06-30 | 2007-01-24 | 西安电子科技大学 | Dynamic frequency spectrum managing method based on frequency spectrum multiple use |
| CN101222284A (en) * | 2008-02-03 | 2008-07-16 | 北京创毅视讯科技有限公司 | Scheduling system and method for authorized management information in mobile multimedia broadcast |
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