CN102480686B - A kind of method and apparatus carrying unicast service frequency spectrum resource and switch - Google Patents
A kind of method and apparatus carrying unicast service frequency spectrum resource and switch Download PDFInfo
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- CN102480686B CN102480686B CN201010556010.5A CN201010556010A CN102480686B CN 102480686 B CN102480686 B CN 102480686B CN 201010556010 A CN201010556010 A CN 201010556010A CN 102480686 B CN102480686 B CN 102480686B
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- spectrum resource
- frequency spectrum
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/06—Hybrid resource partitioning, e.g. channel borrowing
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Abstract
The invention discloses a kind of method carrying unicast service frequency spectrum resource and switch, base station (eNB), when residual spectrum resource does not meet multimedia broadcast multi-broadcasting business (MBMS) demand, adds up current and provides frequency spectrum resource; Current provide frequency spectrum resource to meet MBMS demand time, the unicast service of the subscriber equipment (UE) with cognitive radio function is switched to and can use frequency range; The present invention also discloses a kind of device solving multimedia broadcasting multicast service resource demand, pass through the solution of the present invention, long evolving system can be made to obtain enough frequency spectrum resources to support MBMS, avoid because the frequency spectrum resource of a certain eNB is not enough, and make whole multicast broadcast multimedia service single frequency network (MBSFN) region cannot provide the problem of MBMS, improve the impression of MBMS user.
Description
Technical field
The present invention relates to wireless communication technology, particularly relate to a kind of method and apparatus carrying unicast service frequency spectrum resource and switch.
Background technology
Long Term Evolution version 9 (LTER9) supports that multimedia broadcast multi-broadcasting business (MBMS, MultimediaBroadcastMulticastService) transmits.At certain multicast broadcast multimedia service single frequency network (MBSFN, MultimediaBroadcastmulticastserviceSingleFrequencyNetwor k) in region, multiple base station (eNB, enhancedNodeBasestation) transmission data are obtained from multicast broadcast multimedia service gateway (MBMSGW), for subscriber equipment (UE, UserEquipment) provides MBMS service.In eNB coverage, the frequency spectrum resource that unicast service and MBMS shared system are distributed, because each operator is final obtained for Long Term Evolution/senior Long Term Evolution (LTE/LTE-A, LongTermEvolution/LongTermEvolution-Advanced) frequency spectrum resource of system cloud gray model is very limited, along with unicast service development, probably cause when network side triggers MBMS, the frequency spectrum resource operation MBMS that a certain eNB is enough.On the other hand, the regulation of Current protocol, if MBSFN region memory at arbitrary eNB without frequency spectrum resource, then MBMS cannot be carried out in whole MBSFN region.And in MBSFN region, occur the eNB of a certain hot spot region due to unicast service more and be very high without the probability that enough frequency spectrum resources meet MBMS situation, this reduces the impression of MBMS user to a great extent.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and apparatus carrying unicast service frequency spectrum resource and switch, and avoids because the frequency spectrum resource of a certain eNB is not enough, and makes whole MBSFN region cannot provide the problem of MBMS.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method carrying unicast service frequency spectrum resource and switch provided by the invention, the method comprises:
ENB, when residual spectrum resource does not meet MBMS demand, adds up current available frequency spectrum resource;
When current available frequency spectrum resource meets MBMS demand, the unicast service of the UE with cognitive radio (CR, CognitiveRadio) function is switched to and can use frequency range.
In such scheme, the current available frequency spectrum resource of described statistics is: described eNB assessment by switching the releasable frequency spectrum resource of unicast service, and is sued for peace with residual spectrum resource, obtains current available frequency spectrum resource.
In such scheme, describedly by switching unicast service releasable frequency spectrum resource be: described eNB adds up the UE number that self subordinate has CR function, and respectively have CR function UE unicast service shared by frequency spectrum resource, obtain have the UE of CR function the frequency spectrum resource shared by unicast service sum; And, eNB acquisition is current uses frequency range frequency spectrum resource condition information, statistics can use the available frequency spectrum resource of frequency range, frequency spectrum resource sum shared by the described unicast service with the UE of CR function, and describedly use the available frequency spectrum resource of frequency range, obtain by switching the releasable frequency spectrum resource of unicast service.
In such scheme, described CR function comprises: be supported in and can use band operation, support adjustment wireless communication technology parameter, support to change working frequency points and frequency range.
In such scheme, the method comprises further: when current available frequency spectrum resource does not meet MBMS demand, and eNB supports MBMS to network side feedback No Assets.
In such scheme, the method comprises further: when current available frequency spectrum resource is greater than MBMS demand, and eNB carries out selectivity switching according to the unicast service of the UE with CR function with the attributes match degree can using frequency range.
In such scheme, described frequency range of using at least comprises one of following frequency range: TV band blank frequency spectrum (TVWS, TVWhiteSpaces) frequency range, global system for mobile communications (GSM, GlobalSystemforMobileCommunications) idle frequency spectrum frequency range.
A kind of device carrying unicast service frequency spectrum resource and switch provided by the invention, this device comprises: statistical module, handover module, wherein,
Statistical module, for when residual spectrum resource does not meet MBMS demand, adds up current available frequency spectrum resource, and is sent to handover module;
Handover module, for when current available frequency spectrum resource meets MBMS demand, switches to can use frequency range by the unicast service of the UE with CR function.
In such scheme, described statistical module, specifically for assessment by switching the releasable frequency spectrum resource of unicast service, and suing for peace with residual spectrum resource, obtaining current available frequency spectrum resource.
In such scheme, described handover module, also for when current available frequency spectrum resource does not meet MBMS demand, supports MBMS to network side feedback No Assets.
In such scheme, described handover module, also for when current available frequency spectrum resource is greater than MBMS demand, the unicast service according to the UE with CR function carries out selectivity switching with the attributes match degree can using frequency range.
A kind of method and apparatus carrying unicast service frequency spectrum resource and switch provided by the invention, eNB, when residual spectrum resource does not meet MBMS demand, adds up current and provides frequency spectrum resource; Current provide frequency spectrum resource to meet MBMS demand time, the unicast service of the UE with CR function is switched to and can use frequency range; So, LTE system can be made to obtain enough frequency spectrum resources to support MBMS, avoid because the frequency spectrum resource of a certain eNB is not enough, and make whole MBSFN region cannot provide the problem of MBMS, improve the impression of MBMS user.
Accompanying drawing explanation
Fig. 1 is that the present invention realizes a kind of schematic flow sheet carrying the method that unicast service frequency spectrum resource switches;
Fig. 2 is the schematic diagram in prior art, the unicast service in required for MBMS frequency spectrum resource being dispatched to the residual spectrum resource beyond the required frequency spectrum resource of MBMS;
Fig. 3 is the present invention when having a unicast service of the UE without CR function in the required frequency spectrum resource of MBMS, carries out the schematic diagram of unicast service switching;
Fig. 4 for the present invention current provide frequency spectrum resource not meet MBMS demand time, carry out the schematic diagram of unicast service switching;
Fig. 5 is that the present invention realizes a kind of structural representation carrying the device that unicast service frequency spectrum resource switches.
Embodiment
Basic thought of the present invention is: eNB, when residual spectrum resource does not meet MBMS demand, adds up current and provides frequency spectrum resource; Current provide frequency spectrum resource to meet MBMS demand time, the unicast service of the UE with CR function is switched to and can use frequency range.
Below by drawings and the specific embodiments, the present invention is described in further detail.
The present invention realizes a kind of method carrying unicast service frequency spectrum resource and switch, and as shown in Figure 1, the method comprises following step:
Step 101: network side triggers MBMS, in informing MBSFN, each eNB does MBMS and sends preparation;
Here, the content that network side notifies to each eNB at least comprises: multicast subframe configuration parameter, beginning and ending time, covering parameter.
When step 102:eNB determines that residual spectrum resource does not meet MBMS demand, add up current available frequency spectrum resource;
Concrete, according to the multicast subframe configuration parameter that network side notifies, eNB judges whether residual spectrum resource meets described MBMS demand, if do not meet, eNB assessment is by switching the releasable frequency spectrum resource of unicast service, and sue for peace with residual spectrum resource, obtain current available frequency spectrum resource, described by switching the releasable frequency spectrum resource of unicast service generally: eNB has the UE number of CR function by its subordinate of statistics, and respectively have CR function UE unicast service shared by frequency spectrum resource, obtain have the UE of CR function the frequency spectrum resource shared by unicast service sum, and, eNB acquisition is current uses frequency range frequency spectrum resource condition information, statistics can use the available frequency spectrum resource of frequency range, frequency spectrum resource sum shared by the described unicast service with the UE of CR function, and describedly use the available frequency spectrum resource of frequency range, obtain by switching the releasable frequency spectrum resource of unicast service, namely have CR function UE unicast service shared by frequency spectrum resource sum be greater than described can use frequency range available frequency spectrum resource time, the described available frequency spectrum resource of frequency range of using is by switching the releasable frequency spectrum resource of unicast service, have CR function UE unicast service shared by frequency spectrum resource sum be less than or equal to described can use frequency range available frequency spectrum resource time, described in there is the UE of CR function the frequency spectrum resource shared by unicast service add up to by switching the releasable frequency spectrum resource of unicast service,
Described CR function at least comprises: be supported in and can use band operation; Support adjustment wireless communication technology parameter, as modulation type, transmitting power etc.; Support to change working frequency points and frequency range;
Described frequency range of using at least comprises one of following frequency range: TVWS frequency range or GSM idle frequency spectrum frequency range etc.;
Described acquisition is current, and to use frequency spectrum resource condition information can be that the database storing frequency spectrum resource condition information by access obtains or carries out Whole frequency band perception acquisition etc. can use frequency range;
In this step, if satisfy the demands, then by existing scheduling, realize the transmission of MBMS, flow process terminates; Described existing scheduling, as shown in Figure 2, unicast service in required for MBMS frequency spectrum resource is dispatched to the residual spectrum resource beyond the required frequency spectrum resource of MBMS, and the frequency spectrum resource that described unicast service takies is represented by the grid frame in Fig. 2, and residual spectrum resource is represented by blank box.
Step 103: when current available frequency spectrum resource meets MBMS demand, the unicast service of the UE with CR function switches to and can use frequency range by eNB;
Concrete, according to the multicast subframe configuration parameter that network side notifies, eNB judges whether the current frequency spectrum resource that provides meets described MBMS demand, when current available frequency spectrum resource meets MBMS demand, the unicast service of the UE with CR function switches to and can use frequency range by eNB;
This step comprises further: when having the unicast service of the UE without CR function in the required frequency spectrum resource of MBMS, after the unicast service of the UE with CR function switches to and can use frequency range by eNB, also the unicast service in required for MBMS frequency spectrum resource without the UE of CR function is switched to the blank frequency spectrum resource beyond the required frequency spectrum resource of MBMS, described blank frequency spectrum resource comprises the frequency spectrum resource and residual spectrum resource that the unicast service with the UE of CR function that switched vacates, as shown in Figure 3, the frequency spectrum resource that the described unicast service without the UE of CR function takies is represented by grid frame, the frequency spectrum resource that the unicast service with the UE of CR function takies is represented by black box, residual spectrum resource is represented by blank box,
This step further comprises: current provide frequency spectrum resource not meet MBMS demand time, eNB to network side feedback No Assets support MBMS, as shown in Figure 4, the unicast service in the required frequency spectrum resource of MBMS without the UE of CR function has three, the unicast service with the UE of CR function has one, unicast service and a residual spectrum resource with the UE of CR function is had beyond the required frequency spectrum resource of MBMS, after the unicast service of the UE with CR function switched to can using frequency range, the unicast service in the required frequency spectrum resource of MBMS without the UE of CR function can only have two blank frequency spectrum resources that can switch to beyond the required frequency spectrum resource of MBMS, MBMS demand can not be met like this, eNB will feed back No Assets to network side and support MBMS, described network side at least comprises: cell cooperative entity (MCE, Multi-cell/multicastCoordinationEntity), broadcast multicast service center (BMSC, Broadcast-Multicast-ServiceCentre), MBMS gateway (MBMSGW, MBMSGateWay).
This step further comprises: when current available frequency spectrum resource is greater than MBMS demand, eNB carries out selectivity switching according to the unicast service of the UE with CR function with the attributes match degree can using frequency range, namely selects the high unicast service with the UE of CR function of matching degree to be switched to and can to use frequency range; Described attribute comprises: business beginning and ending time, regional characteristic, maybe can use the restriction etc. of frequency range to business; Concrete, the current of eNB acquisition is used in frequency range frequency spectrum resource condition information, except comprise can use frequency range frequency, except band information, comprise simultaneously: the parameters such as beginning and ending time that frequency range can use, coverage and the maximum transmission power that allows can be used; When selectivity switching will be carried out according to matching degree, there is described in eNB weighs the attribute of the unicast service of the UE of CR function, select to switch with above-mentioned carrying out of using frequency range frequency spectrum resource condition information matching degree high.As: when eNB is using the beginning and ending time as when judging the parameter of matching degree, according to the beginning and ending time can used frequency range and can use, and described in there is beginning and ending time of the unicast service of the UE of CR function, both judgements matching degree, that is: can use period that frequency range can use is greater than the period that unicast service takies, thus reduces the possibility that unicast service switches again.
In order to realize said method, the present invention also provides a kind of device carrying unicast service frequency spectrum resource and switch, and this device is arranged in each eNB, and as shown in Figure 5, this device comprises: statistical module 51, handover module 52, wherein,
Statistical module 51, for when residual spectrum resource does not meet MBMS demand, adds up current available frequency spectrum resource, and is sent to handover module 52;
Handover module 52, for when current available frequency spectrum resource meets MBMS demand, switches to can use frequency range by the unicast service of the UE with CR function;
Described statistical module 51 adds up current provides frequency spectrum resource, is specially: statistical module 51 is assessed by switching the releasable frequency spectrum resource of unicast service, and sues for peace with residual spectrum resource, obtains current available frequency spectrum resource;
Described statistical module 51 is assessed by switching the releasable frequency spectrum resource of unicast service, be generally, statistical module 51 has the UE number of CR function by its subordinate of statistics, and respectively have CR function UE unicast service shared by frequency spectrum resource, obtain have the UE of CR function the frequency spectrum resource shared by unicast service sum; And, statistical module 51 obtains currently uses frequency range frequency spectrum resource condition information, statistics can use the available frequency spectrum resource of frequency range, according to have CR function UE unicast service shared by frequency spectrum resource sum, and describedly use the available frequency spectrum resource of frequency range, obtain by switching the releasable frequency spectrum resource of unicast service;
When having the unicast service of the UE without CR function in the required frequency spectrum resource of MBMS, described handover module 52, after being further used for the unicast service of the UE with CR function to switch to frequency range can being used, also the unicast service in required for MBMS frequency spectrum resource without the UE of CR function is switched to the blank frequency spectrum resource beyond the required frequency spectrum resource of MBMS;
Described handover module 52, further also for when current available frequency spectrum resource does not meet MBMS demand, supports MBMS to network side feedback No Assets;
Described handover module 52, further also for when current available frequency spectrum resource is greater than MBMS demand, unicast service according to the UE with CR function carries out selectivity switching with the attributes match degree can using frequency range, namely selects the high unicast service with the UE of CR function of matching degree to be switched to and can to use frequency range; Described attribute comprises: business beginning and ending time, regional characteristic, maybe can use the restriction etc. of frequency range to business.
By method of the present invention, LTE system can be made to obtain enough system spectral resources to support the transmission of its MBMS, avoid because the frequency spectrum resource of a certain eNB is not enough, and make whole MBSFN region cannot provide the problem of MBMS, improve the impression of MBMS user.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. carry the method that unicast service frequency spectrum resource switches, it is characterized in that, the method comprises:
Base station eNB, when residual spectrum resource does not meet multimedia broadcast multi-broadcasting business MBMS demand, adds up current available frequency spectrum resource;
When current available frequency spectrum resource meets MBMS demand, the unicast service of the user equipment (UE) with cognitive radio CR function is switched to and can use frequency range;
Wherein, the current available frequency spectrum resource of described statistics is: described eNB assessment by switching the releasable frequency spectrum resource of unicast service, and is sued for peace with residual spectrum resource, obtains current available frequency spectrum resource;
Wherein, described frequency range of using at least comprises one of following frequency range: TV band blank frequency spectrum TVWS frequency range, global system for mobile communications GSM idle frequency spectrum frequency range.
2. method according to claim 1, it is characterized in that, describedly by switching unicast service releasable frequency spectrum resource be: described eNB adds up the UE number that self subordinate has CR function, and respectively have CR function UE unicast service shared by frequency spectrum resource, obtain have the UE of CR function the frequency spectrum resource shared by unicast service sum; And, eNB acquisition is current uses frequency range frequency spectrum resource condition information, statistics can use the available frequency spectrum resource of frequency range, frequency spectrum resource sum shared by the described unicast service with the UE of CR function, and describedly use the available frequency spectrum resource of frequency range, obtain by switching the releasable frequency spectrum resource of unicast service.
3. method according to claim 1, is characterized in that, described CR function comprises: be supported in and can use band operation, support adjustment wireless communication technology parameter, support to change working frequency points and frequency range.
4. method according to claim 1, is characterized in that, the method comprises further: when current available frequency spectrum resource does not meet MBMS demand, and eNB supports MBMS to network side feedback No Assets.
5. method according to claim 1, it is characterized in that, the method comprises further: when current available frequency spectrum resource is greater than MBMS demand, and eNB carries out selectivity switching according to the unicast service of the UE with CR function with the attributes match degree can using frequency range.
6. carry the device that unicast service frequency spectrum resource switches, it is characterized in that, this device comprises: statistical module, handover module, wherein,
Statistical module, for when residual spectrum resource does not meet MBMS demand, adds up current available frequency spectrum resource, and is sent to handover module;
Handover module, for when current available frequency spectrum resource meets MBMS demand, switches to can use frequency range by the unicast service of the UE with CR function; Wherein,
Described statistical module, specifically for assessment by switching the releasable frequency spectrum resource of unicast service, and suing for peace with residual spectrum resource, obtaining current available frequency spectrum resource;
Wherein, described frequency range of using at least comprises one of following frequency range: TV band blank frequency spectrum TVWS frequency range, global system for mobile communications GSM idle frequency spectrum frequency range.
7. device according to claim 6, is characterized in that, described handover module, also for when current available frequency spectrum resource does not meet MBMS demand, supports MBMS to network side feedback No Assets.
8. device according to claim 6, it is characterized in that, described handover module, also for when current available frequency spectrum resource is greater than MBMS demand, the unicast service according to the UE with CR function carries out selectivity switching with the attributes match degree can using frequency range.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010556010.5A CN102480686B (en) | 2010-11-23 | 2010-11-23 | A kind of method and apparatus carrying unicast service frequency spectrum resource and switch |
| PCT/CN2011/082291 WO2012068964A1 (en) | 2010-11-23 | 2011-11-16 | Method and apparatus for switching spectrum resource bearing unicast service |
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| CN201010556010.5A CN102480686B (en) | 2010-11-23 | 2010-11-23 | A kind of method and apparatus carrying unicast service frequency spectrum resource and switch |
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| CN102480686A CN102480686A (en) | 2012-05-30 |
| CN102480686B true CN102480686B (en) | 2016-03-30 |
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| WO (1) | WO2012068964A1 (en) |
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| US9537668B2 (en) * | 2013-12-20 | 2017-01-03 | Qualcomm Incorporated | LTE EMBMS service enhancement |
| WO2016000165A1 (en) * | 2014-06-30 | 2016-01-07 | 华为技术有限公司 | Method and device for indicating radio resources |
| CN110662270B (en) * | 2018-06-28 | 2021-05-18 | 华为技术有限公司 | Communication method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247635A (en) * | 2007-02-16 | 2008-08-20 | 华为技术有限公司 | Dynamic frequency hopping access method and apparatus |
| CN101296499A (en) * | 2007-04-26 | 2008-10-29 | 华为技术有限公司 | Method and device for implementing coexistence between cognition wireless systems |
| CN101702635A (en) * | 2009-10-28 | 2010-05-05 | 北京邮电大学 | Method for switching frequency spectrum based on cognitive radio technology and system thereof |
| CN101860937A (en) * | 2010-04-14 | 2010-10-13 | 北京交通大学 | Frequency spectrum switching method in distributed cognitive radio network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101527119B1 (en) * | 2008-12-03 | 2015-06-10 | 삼성전자주식회사 | Apparatus and method for dynamic resource exchange in a communication system based on cognitive radio |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247635A (en) * | 2007-02-16 | 2008-08-20 | 华为技术有限公司 | Dynamic frequency hopping access method and apparatus |
| CN101296499A (en) * | 2007-04-26 | 2008-10-29 | 华为技术有限公司 | Method and device for implementing coexistence between cognition wireless systems |
| CN101702635A (en) * | 2009-10-28 | 2010-05-05 | 北京邮电大学 | Method for switching frequency spectrum based on cognitive radio technology and system thereof |
| CN101860937A (en) * | 2010-04-14 | 2010-10-13 | 北京交通大学 | Frequency spectrum switching method in distributed cognitive radio network |
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| WO2012068964A1 (en) | 2012-05-31 |
| CN102480686A (en) | 2012-05-30 |
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