CN103491548B - A kind of frequency spectrum switching method and equipment based on cognitive radio system - Google Patents

A kind of frequency spectrum switching method and equipment based on cognitive radio system Download PDF

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Publication number
CN103491548B
CN103491548B CN201210196139.9A CN201210196139A CN103491548B CN 103491548 B CN103491548 B CN 103491548B CN 201210196139 A CN201210196139 A CN 201210196139A CN 103491548 B CN103491548 B CN 103491548B
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China
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base station
terminal device
station equipment
frequency
source
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CN103491548A (en
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白文岭
李媛媛
蒋成钢
杨宇
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201210196139.9A priority Critical patent/CN103491548B/en
Priority to PCT/CN2013/077006 priority patent/WO2013185582A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of frequency spectrum switching method based on cognitive radio system and equipment, the method includes：Before frequency spectrum switching, terminal device maintains uplink synchronous with base station equipment in the working frequency points of source；The terminal device is about scheduled on the ascending resource on target operation frequency with the base station equipment；Or, the terminal device receives the ascending resource on target operation frequency that the base station equipment is the terminal device distribution in the working frequency points of source；The terminal device judges whether itself maintains uplink synchronous between the base station equipment after target operation frequency is searched；If it is, the terminal device sends the frequency spectrum handoff completion message for indicating the terminal device to be successfully completed frequency spectrum handoff procedure using the ascending resource to the base station equipment.In the embodiment of the present invention, the frequency spectrum handoff failure probability and service outage duration of CR systems are reduced, improve the Consumer's Experience of CR systems.

Description

A kind of frequency spectrum switching method and equipment based on cognitive radio system
Technical field
The present invention relates to communication technical field, more particularly to a kind of frequency spectrum switching method based on cognitive radio system and Equipment.
Background technology
Radio communication frequency spectrum is a kind of valuable natural resources, with the very fast development of wireless communication technology, frequency spectrum money The poor problem in source is increasingly serious, the present situation nervous in order to alleviate frequency spectrum resource, and relevant departments and mechanism are to wireless communication spectrum Monitored and studied, found some frequency ranges（Such as TV band）In most of time and it is not used or most of In domain and it is not used, and some frequency ranges then occur in that the situation that multisystem multi-user competes simultaneously, i.e. the use of frequency spectrum resource is deposited In unbalanced phenomena.
CR（Cognitive Radio, cognitive radio）Concept exactly produce under this background, its basic thought It is：On the premise of not interfered to authoring system, CR systems can be by monitoring the change of current radio environment come dynamic machine White spaces can be accessed to be communicated likes；In the blank frequency spectrum of CR system opportunistic insertion authority systems, with the proviso that protecting Not by the harmful interference of CR systems, this is required shield authoring system business：（1）CR systems have the energy for determining blank frequency spectrum Power, that is, be accurately judged to the blank frequency spectrum of authoring system frequency range；（2）CR systems have frequency spectrum switching capability, that is, finding to authorize System is in currently used blank frequency spectrum（Source working frequency points）On reappear or currently used blank frequency spectrum quality is unsatisfactory for During the operation quality requirement of CR systems, CR systems can in time exit currently used blank frequency spectrum.
As shown in figure 1, for flow chart is realized in the frequency spectrum switching in CR systems, realizing flow by this, it is ensured that CR systems The continuity of business；Specifically, CR systems are when frequency spectrum switches, whole CR systems can be cut after source working frequency points are exited Change to other blank frequency spectrums（Target operation frequency）Upper recovery business.
In the prior art, frequency spectrum handoff procedure is designed based on static mandate frequency range, and for cutting between different districts Carry over scape, the terminal device number of switching is typically less, and its basic process is：Base station equipment sends frequency spectrum and switches to terminal device Order, notifies terminal device target operation frequency and its radio-resource-configuration；Terminal device after frequency spectrum switching command is received, from Increase income working frequency points, search for target operation frequency, and random in performance objective working frequency points connecing after target frequency is searched Enter, the uplink synchronous with base station equipment are completed by random access procedure, and frequency spectrum handoff completion message is sent to base station equipment.
Realize it is of the invention during, inventor find at least there is problems with the prior art：
, it is necessary to by all RRC in whole cell in the frequency spectrum handoff procedure of CR systems（Radio Resource Control, wireless heterogeneous networks）The terminal device of connected state is switched on target operation frequency, and the terminal of its RRC connected state sets It is standby a lot（Can be more than 1200）, therefore existing frequency spectrum switching mode is used, substantial amounts of terminal device can be caused to concentrate In a short time on target operation frequency perform competition random access procedure, cause random access failure probability higher with Machine access delay, so as to cause frequency spectrum handoff failure probability higher and service outage duration higher, influences the use of CR systems Experience at family.
The content of the invention
The embodiment of the present invention provides a kind of frequency spectrum switching method and equipment based on cognitive radio system, to reduce frequency spectrum Handoff failure probability and service outage duration, improve the Consumer's Experience of CR systems.
In order to achieve the above object, the embodiment of the present invention provides a kind of frequency spectrum switching side based on cognitive radio system Method, before frequency spectrum switching, terminal device maintains uplink synchronous with base station equipment in the working frequency points of source；The method includes：
The terminal device is about scheduled on the ascending resource on target operation frequency with the base station equipment；Or, the end It is the upper on target operation frequency of the terminal device distribution that end equipment receives the base station equipment in the working frequency points of source Row resource；
The terminal device judges whether itself ties up between the base station equipment after target operation frequency is searched Hold uplink synchronous；
If it is, the terminal device utilizes the ascending resource to be sent for indicating the end to the base station equipment End equipment is successfully completed the frequency spectrum handoff completion message of frequency spectrum handoff procedure.
The embodiment of the present invention provides a kind of frequency spectrum switching method based on cognitive radio system, before frequency spectrum switching, Base station equipment maintains uplink synchronous with terminal device in the working frequency points of source；The method includes：
The base station equipment is about scheduled on the ascending resource on target operation frequency with the terminal device；Or, the base Station equipment is ascending resource of the terminal device distribution on target operation frequency, and will be described up in the working frequency points of source Resource is sent to the terminal device；Wherein, the ascending resource is used to make the terminal device send for indicating the end End equipment is successfully completed the frequency spectrum handoff completion message of frequency spectrum handoff procedure；
When the base station equipment is after target operation frequency recovers cell, the base station equipment is on target operation frequency Receive the frequency spectrum handoff completion message that the terminal device is sent using the ascending resource to the base station equipment.
The embodiment of the present invention provides a kind of terminal device, including：
Management module, for before frequency spectrum switches, maintenance terminal equipment to be maintained with base station equipment in the working frequency points of source Uplink synchronous；And, about it is scheduled on the ascending resource on target operation frequency with the base station equipment；Or, in source working frequency points It is upper to receive the ascending resource on target operation frequency that the base station equipment is the terminal device distribution；
Judge module, for after target operation frequency is searched, judging the terminal device with the base station equipment Between whether maintain uplink synchronous；
Sending module, for when judged result is to be, being sent to the base station equipment using the ascending resource to be used for The terminal device is indicated to be successfully completed the frequency spectrum handoff completion message of frequency spectrum handoff procedure.
The embodiment of the present invention provides a kind of base station equipment, including：
Management module, for before frequency spectrum switches, base station maintenance equipment to be maintained with terminal device in the working frequency points of source Uplink synchronous；And, about it is scheduled on the ascending resource on target operation frequency with the terminal device；Or, it is that the terminal sets Back-up fits over the ascending resource on target operation frequency, and the ascending resource is sent into the terminal in the working frequency points of source Equipment；
Wherein, the ascending resource is used to make the terminal device send for indicating the terminal device to succeed Into the frequency spectrum handoff completion message of frequency spectrum handoff procedure；
Receiver module, for when the base station equipment is after target operation frequency recovers cell, in target operation frequency It is upper to receive the frequency spectrum handoff completion message that the terminal device is sent using the ascending resource to the base station equipment.
Compared with prior art, the embodiment of the present invention at least has advantages below：In the embodiment of the present invention, in frequency spectrum switching During, terminal device can directly using the up sending method of Lothrus apterus between terminal device in pre-assigned cell and Ascending resource sends frequency spectrum handoff completion message to base station equipment, so as to eliminate Stochastic accessing mistake in frequency spectrum handoff procedure Journey, it is to avoid the random access collision in CR system spectrum handoff procedures, then reduces the frequency spectrum handoff failure probability of CR systems With service outage duration, the Consumer's Experience of CR systems is improve.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, embodiment will be described below needed for the accompanying drawing to be used It is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that flow chart is realized in the frequency spectrum switching in the prior art in CR systems；
Fig. 2 is that a kind of frequency spectrum switching method flow based on cognitive radio system that the embodiment of the present invention one is provided is illustrated Figure；
Fig. 3 is that a kind of frequency spectrum switching method flow based on cognitive radio system that the embodiment of the present invention two is provided is illustrated Figure；
Fig. 4 is that a kind of frequency spectrum switching method flow based on cognitive radio system that the embodiment of the present invention three is provided is illustrated Figure；
Fig. 5 is a kind of structural representation of terminal device that the embodiment of the present invention four is provided；
Fig. 6 is a kind of structural representation of base station equipment that the embodiment of the present invention five is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, shown So, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of protection of the invention.
Embodiment one
The embodiment of the present invention one provides a kind of frequency spectrum switching method based on cognitive radio system, the applied field of the method Scape is included but is not limited to：Using the LTE of CR technologies（Long Term Evolution, Long Term Evolution）、TD-SCDMA（Time Division-Synchronous Code Division Multiple Access, TD SDMA）、WCDMA （Wideband Code Division Multiple Access, WCDMA）、CDMA（Code Division Multiple Access, also known as CDMA）- 2000 grade wireless communication systems；As shown in Fig. 2 the method includes following step Suddenly：
Step 201, before frequency spectrum switching, base station equipment（Base station equipment in CR systems）With terminal device（CR systems Interior terminal device）Uplink synchronous are maintained in the working frequency points of source.
In a kind of preferred embodiment of the embodiment of the present invention, in order to realize that base station equipment works frequently with terminal device in source Uplink synchronous are maintained on point, then：Base station equipment by detect terminal device send upward signal, determine terminal device whether with Base station equipment maintains uplink synchronous in the working frequency points of source；If there is synchronism deviation, then base station equipment is to terminal device transmission Timing adjustment command, to need by timing adjustment command instruction terminal equipment to carry out the adjustment of up Timing Synchronization point；And：Eventually End equipment carries out the adjustment of up Timing Synchronization point when the timing adjustment command from base station equipment is received, that is, adjust it The Timing Synchronization of the up channel/signal in uplink；Base station equipment and terminal device, can be with after above-mentioned treatment is carried out So that base station equipment maintains uplink synchronous with terminal device in the working frequency points of source.
In LTE system, base station equipment by detect terminal device send upward signal, determine terminal device whether with Uplink synchronous are maintained from the working frequency points of source；If there is synchronism deviation, then TAC is sent to terminal device（Timing Advanced Command, Timing Advance more newer command）, it is same by TAC instruction terminal equipment to need to carry out up timing The adjustment of beans-and bullets shooter；And terminal device carries out the adjustment of up Timing Synchronization point when TAC is received, that is, in adjusting its uplink Up channel/signal Timing Synchronization, such as adjust the PUSCH in its uplink（Physical Uplink Shared Channel, Physical Uplink Shared Channel）、PUCCH（Physical Uplink Control Channel, physical uplink control Channel）、SRS（Sounding Reference Signal, detection reference signal）Deng Timing Synchronization；Based on this, can cause Base station equipment maintains uplink synchronous with terminal device in the working frequency points of source.
Step 202, base station equipment is about scheduled on the ascending resource on target operation frequency with terminal device；Or, base station sets The standby ascending resource for terminal device distribution on target operation frequency, and be sent to the ascending resource in the working frequency points of source Terminal device, the ascending resource is received by terminal device in the working frequency points of source.
Wherein, the ascending resource is successfully completed frequency spectrum switching for sending terminal device for instruction terminal equipment The frequency spectrum handoff completion message of process, and the ascending resource can be the resources such as time-frequency code, and the ascending resource is in cell It is orthogonal, Lothrus apterus between terminal device.
In the embodiment of the present invention, base station equipment is about scheduled on the ascending resource on target operation frequency with terminal device, including But it is not limited to：Base station equipment and terminal device by the ascending resource in the working frequency points of agreement static state regulation source be target operation frequently Ascending resource on point；For example, a kind of communication system for defining dedicated channel（Such as TD-SCDMA system）Ascending resource about Determine mode to be specially：By the dedicated channel in the working frequency points of agreement static state regulation source（Such as code channel/time slot ascending resource）I.e. It is the dedicated channel on target operation frequency, and terminal device can send frequency spectrum handoff completion message using this dedicated channel, Such that it is able to reduce system implementation complexity, and saving signaling expense.
In the embodiment of the present invention, ascending resource is sent to terminal device by base station equipment in the working frequency points of source, including but It is not limited to：Before frequency spectrum switching, base station equipment is terminal device distribution ascending resource by way of dynamic configuration, and in source In working frequency points the idle messages such as dedicated signaling or system broadcast message, and dedicated signaling or system are sent to terminal device The ascending resource on target operation frequency that base station equipment is terminal device distribution is carried in the idle messages such as broadcast message；Or Person, when in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, base station equipment is to end End equipment is believed in sending frequency spectrum switching command, and the frequency spectrum switching command comprising target operation frequency and/or radio-resource-configuration Breath and the ascending resource on target operation frequency that base station equipment is terminal device distribution.
In a kind of preferred embodiment of the embodiment of the present invention, base station equipment can also about be scheduled on target work with terminal device Make the ascending resource and up sending method on frequency；Or, base station equipment can also be terminal device distribution in target work Make the ascending resource and up sending method on frequency, and by the ascending resource and up sender in the working frequency points of source Formula is sent to terminal device；Wherein, the up sending method is included but is not limited to：Modulation coding mode, HARQ（Hybrid Auto Repeat request, hybrid automatic repeat-request）Information, power control information etc..
In the embodiment of the present invention, base station equipment is about scheduled on ascending resource on target operation frequency and up with terminal device Sending method, including but not limited to：Base station equipment is with terminal device by the up money in the working frequency points of agreement static state regulation source Source and up sending method are ascending resource and up sending method on target operation frequency；For example, one kind define it is special The communication system of channel（Such as TD-SCDMA system）Ascending resource and the stipulated form of up sending method be：It is quiet by agreement State specifies the dedicated channel in the working frequency points of source（Such as code channel/time slot ascending resource）Target operation is with up sending method Dedicated channel and up sending method on frequency, and terminal device can be using this dedicated channel and the transmission of up sending method Frequency spectrum handoff completion message, such that it is able to reduce system implementation complexity, and saving signaling expense.
In the embodiment of the present invention, ascending resource and up sending method are sent to end by base station equipment in the working frequency points of source End equipment, including but not limited to：Before frequency spectrum switching, base station equipment is by way of dynamic configuration in terminal device distribution Row resource and up sending method, and send dedicated signaling or system broadcast message etc. to terminal device in the working frequency points of source It is existing for terminal device distribution that base station equipment is carried in idle message, and the idle message such as dedicated signaling or system broadcast message Ascending resource and up sending method on target operation frequency；Or, when in the working frequency points of source authorized user reappear or When the channel quality of person source working frequency points declines, base station equipment sends frequency spectrum switching command to terminal device, and the frequency spectrum switches Comprising target operation frequency and/or wireless resource configuration and base station equipment it is terminal device distribution in mesh in order Ascending resource and up sending method in mark working frequency points.
It should be noted that notifying up money by the way of agreement ascending resource or using before frequency spectrum switching During the mode in source, do not have sequencing relation between step 201 and step 202, step 202 can also be before step 201 Perform；When being notified by the way of ascending resource by frequency spectrum switching command, step 202 is performed after step 201, subsequently The process is illustrated in step.
Step 203, when base station equipment find source working frequency points on authorized user reappear or source working frequency points letter During road Quality Down, base station equipment decision-making needs to perform frequency spectrum handoff procedure, generates frequency spectrum switching command, and the frequency spectrum is switched Order is sent to terminal device；Wherein, target operation frequency and/or radio-resource-configuration are comprised at least in the frequency spectrum switching command Information.
In a kind of preferred embodiment of the embodiment of the present invention, can also be carried in the frequency spectrum switching command base station equipment with Whether the configured information of uplink synchronous is maintained between terminal device；And whether remain up same between base station equipment and terminal device The determination mode of step, including：Base station equipment judges that the moment of terminal device transmission frequency spectrum handoff completion message is closest once Whether the time span between the moment of timing adjustment command is sent not less than specified time threshold（Can be set according to practical experience Put）, and whether the centre frequency of target operation frequency and source working frequency points is spaced not less than assigned frequency thresholding（Can be according to reality Experience is set）；If it is, base station equipment determines that itself maintains uplink synchronous and terminal device between；If it is not, then base station sets It is standby to determine itself not maintaining uplink synchronous and terminal device between.
Can also carry base station equipment in a kind of preferred embodiment of the embodiment of the present invention, in the frequency spectrum switching command is The ascending resource on target operation frequency of terminal device distribution；Or, base station equipment is carried for terminal device distribution exists Ascending resource and up sending method on target operation frequency.
Step 204, base station equipment is sent to after terminal device by frequency spectrum switching command, stops at source working frequency points Signal transmitting and receiving.
Step 205, base station equipment is stopped at after the signal transmitting and receiving of source working frequency points, recovers small using target operation frequency Area.
Step 206, terminal device is after frequency spectrum switching command is received, if carrying up money in frequency spectrum switching command Source, then terminal device storage or update ascending resource；If i.e. currently without ascending resource, directly storing ascending resource； If currently there is ascending resource, the ascending resource that there is currently is updated.
In a kind of preferred embodiment of the embodiment of the present invention, terminal device after frequency spectrum switching command is received, such as Ascending resource and up sending method are carried in fruit frequency spectrum switching command, then terminal device needs to store or update up money Source and up sending method；If i.e. currently without ascending resource and up sending method, directly storing ascending resource and upper Row sending method；If currently having ascending resource and up sending method, the ascending resource and up hair that there is currently are updated Send mode.
Step 207, terminal device leaves source working frequency points, and perform and target after frequency spectrum switching command is received The down-going synchronous of base station equipment in working frequency points, that is, search for target operation frequency.
It should be noted that not having sequencing relation between step 206 and step 207, step 207 can also be in step Performed before rapid 206；And do not have sequencing relation between step 206 and step 207 and step 204 and step 205, such as walk Before rapid 207 may be located at step 204, it is also possible to before step 205, before step 206 may be located at step 204, Before may be located at step 205.
Step 208, terminal device judges whether itself ties up and base station equipment between after target operation frequency is searched Hold uplink synchronous；If it is, performing step 209；If it is not, then uplink synchronous fail, now need using existing frequency spectrum Switching mode, which is repeated no more.
In the embodiment of the present invention, terminal device judges whether itself maintains and base station equipment between on target operation frequency Uplink synchronous, including but not limited to following manner：
Mode one, terminal device judge current time or itself send frequency spectrum handoff completion message moment it is closest Whether the time span between the moment of up Timing Synchronization point adjustment is once carried out not less than specified time threshold（According to reality Experience is set, and the specified time gate limit value that can be used with base station equipment is identical）, and target operation frequency and source working frequency points Centre frequency be spaced whether not less than assigned frequency thresholding（Set according to practical experience, can be used with base station equipment Assigned frequency threshold value is identical）；If it is, terminal device determines that itself maintains uplink synchronous and base station equipment between；If No, then terminal device determines that itself does not maintain uplink synchronous and base station equipment between.
Mode two, the finger that whether uplink synchronous are maintained between base station equipment and terminal device is carried in the frequency spectrum switching command When showing information, then terminal device is obtained between base station equipment and terminal device from the frequency spectrum switching command from base station equipment is It is no to maintain the configured information of uplink synchronous, and determine to remain up same between terminal device and base station equipment using the configured information Step does not maintain uplink synchronous.
Step 209, terminal device utilizes ascending resource to be sent to base station equipment to have succeeded for instruction terminal equipment Into the frequency spectrum handoff completion message of frequency spectrum handoff procedure.
In the embodiment of the present invention, the ascending resource is stored before, and terminal device obtains the mode bag of ascending resource Include but be not limited to：Terminal device is target operation by the ascending resource in the working frequency points of agreement static state regulation source with base station equipment Ascending resource on frequency；Or, before frequency spectrum switching, terminal device is received from base station equipment in the working frequency points of source It is terminal device point that base station equipment is carried in dedicated signaling or system broadcast message, and dedicated signaling or system broadcast message The ascending resource on target operation frequency matched somebody with somebody；Or, terminal device receives the frequency spectrum switching command from base station equipment, and The frequency spectrum switching command base station equipment is the ascending resource on target operation frequency of terminal device distribution.
In a kind of preferred embodiment of the embodiment of the present invention, terminal device specifically utilizes ascending resource and up sender Formula sends frequency spectrum handoff completion message to base station equipment, and the up sending method is stored before, and terminal device is obtained The mode of up sending method is included but is not limited to：Terminal device is with base station equipment by the working frequency points of agreement static state regulation source Up sending method be the up sending method on target operation frequency；Or, before frequency spectrum switching, terminal device is in source Dedicated signaling or system broadcast message from base station equipment, and the dedicated signaling or system broadcasts are received in working frequency points The up sending method on target operation frequency that base station equipment is terminal device distribution is carried in message；Or, terminal sets It is that terminal device is distributed that base station equipment is included in standby reception the frequency spectrum switching command from base station equipment, and the frequency spectrum switching command The up sending method on target operation frequency.
Further, terminal device send frequency spectrum handoff completion message after, when base station equipment is in target operation frequency Recover after cell, ascending resource and up sending method can be utilized to base station by receiving terminal apparatus on target operation frequency The frequency spectrum handoff completion message that equipment sends.
In sum, in the embodiment of the present invention, in frequency spectrum handoff procedure, terminal device can directly using allocating in advance Cell between terminal device the up sending method and ascending resource of Lothrus apterus send frequency spectrum switching to base station equipment and complete Message, so as to eliminate random access procedure in frequency spectrum handoff procedure, it is to avoid connecing at random in CR system spectrum handoff procedures Enter conflict, then reduce the frequency spectrum handoff failure probability and service outage duration of CR systems, improve the user's body of CR systems Test.
Embodiment two
The embodiment of the present invention two provides a kind of frequency spectrum switching method based on cognitive radio system, with to base station equipment Treatment is described in detail；As shown in figure 3, the method is comprised the following steps：
Step 301, before frequency spectrum switching, base station equipment（Base station equipment in CR systems）Maintained in the working frequency points of source With terminal device（Terminal device in CR systems）Uplink synchronous.
In a kind of preferred embodiment of the embodiment of the present invention, base station equipment is by detecting the up letter that terminal device sends Number, determine whether terminal device maintains uplink synchronous with base station equipment in the working frequency points of source；If there is synchronism deviation, then base Station equipment sends timing adjustment command to terminal device, up fixed by timing adjustment command instruction terminal equipment to need to carry out When synchronous point adjustment, to ensure that base station equipment is maintained and the uplink synchronous of terminal device in the working frequency points of source.
Step 302, base station equipment is about scheduled on the ascending resource on target operation frequency with terminal device（As base station equipment with Terminal device is the ascending resource on target operation frequency by the ascending resource in the working frequency points of agreement static state regulation source）；Or Person, before frequency spectrum switching, base station equipment is terminal device distribution by way of dynamic configuration on target operation frequency Ascending resource, and will be up on target operation frequency by dedicated signaling or system broadcast message etc. in the working frequency points of source Resource notification is to terminal device.
Wherein, the ascending resource is successfully completed frequency spectrum switching for sending terminal device for instruction terminal equipment The frequency spectrum handoff completion message of process, and the ascending resource can be the resources such as time-frequency code, and the ascending resource is in cell It is orthogonal, Lothrus apterus between terminal device.
In a kind of preferred embodiment of the embodiment of the present invention, base station equipment can also about be scheduled on target work with terminal device Make the ascending resource and up sending method on frequency（As base station equipment is worked with terminal device by agreement static state regulation source Ascending resource and up sending method on frequency are the ascending resource and up sending method on target operation frequency）；Or, Before frequency spectrum switching, base station equipment is by way of dynamic configuration for terminal device distributes up on target operation frequency Resource and up sending method, and in the working frequency points of source by dedicated signaling or system broadcast message etc. by target operation frequently Ascending resource and up sending method on point are notified to terminal device.Wherein, the up sending method is included but is not limited to：Adjust Coded system processed, HARQ information, power control information etc..
Step 303, when base station equipment finds source working frequency points（Current working frequency）Upper authorized user reappear or When the channel quality of source working frequency points declines, base station equipment decision-making needs to perform frequency spectrum handoff procedure, generates frequency spectrum switching command, And frequency spectrum switching command is sent to terminal device；Wherein, in the frequency spectrum switching command comprise at least target operation frequency and/or Wireless resource configuration.
In a kind of preferred embodiment of the embodiment of the present invention, can also be carried in the frequency spectrum switching command base station equipment with Whether the configured information of uplink synchronous is maintained between terminal device；And whether remain up same between base station equipment and terminal device The determination mode of step, including but not limited to：Base station equipment judges that terminal device sends the moment distance of frequency spectrum handoff completion message Whether the time span between the moment of the last time transmission timing adjustment command is not less than specified time threshold（Can be according to reality Experience is set）, and whether the centre frequency of target operation frequency and source working frequency points is spaced not less than assigned frequency thresholding（Can root Set according to practical experience）；If it is, base station equipment determines that itself maintains uplink synchronous and terminal device between；If it is not, then Base station equipment determines that itself does not maintain uplink synchronous and terminal device between.
Can also carry base station equipment in a kind of preferred embodiment of the embodiment of the present invention, in the frequency spectrum switching command is The ascending resource on target operation frequency of terminal device distribution, and the acquisition pattern of ascending resource can be for base station equipment Terminal equipment configuration；Or, carry ascending resource on target operation frequency that base station equipment is terminal device distribution and upper Row sending method, and the acquisition pattern of ascending resource and up sending method can be terminal equipment configuration for base station equipment.
It should be noted that above-mentioned steps 302 are optional step, and if being not carried out step 302, this step 303 In, it is necessary to carry the ascending resource on target operation frequency in frequency spectrum switching command；Or, on target operation frequency Ascending resource and up sending method.
Step 304, base station equipment is sent to after terminal device by frequency spectrum switching command, stops at source working frequency points Signal transmitting and receiving.
Step 305, base station equipment is stopped at after the signal transmitting and receiving of source working frequency points, recovers small using target operation frequency Area.
Step 306, base station equipment receiving terminal apparatus on target operation frequency are sent out using ascending resource to base station equipment The frequency spectrum handoff completion message for sending（Frequency spectrum handoff procedure is successfully completed for instruction terminal equipment）.The embodiment of the present invention In preferred embodiment, base station equipment receiving terminal apparatus on target operation frequency utilize ascending resource and up sending method To the frequency spectrum handoff completion message that base station equipment sends.
Embodiment three
The embodiment of the present invention three provides a kind of frequency spectrum switching method based on cognitive radio system, with to terminal device Treatment is described in detail；As shown in figure 4, the method is comprised the following steps：
Step 401, before frequency spectrum switching, terminal device（Terminal device in CR systems）With base in the working frequency points of source Station equipment（Base station equipment in CR systems）Maintain uplink synchronous.
In a kind of preferred embodiment of the embodiment of the present invention, the timing adjustment life that terminal device detection base station equipment is issued Order, and the adjustment of up Timing Synchronization point is carried out according to timing adjustment command, i.e., it is upper in the uplink of adjustment terminal device The Timing Synchronization of row channel/signal, to ensure that terminal device maintains the uplink synchronous with base station equipment in the working frequency points of source.
Step 402, terminal device is about scheduled on the ascending resource on target operation frequency with base station equipment（As terminal device with Base station equipment is the ascending resource on target operation frequency by the ascending resource in the working frequency points of agreement static state regulation source）；Or Person, before frequency spectrum switching, it is wide that terminal device receives dedicated signaling or system from base station equipment in the working frequency points of source It is terminal device distribution in target operation frequency to broadcast and base station equipment is carried in message, and dedicated signaling or system broadcast message On ascending resource.
Wherein, the ascending resource is successfully completed frequency spectrum switching for sending terminal device for instruction terminal equipment The frequency spectrum handoff completion message of process, and the ascending resource can be the resources such as time-frequency code, and the ascending resource is in cell It is orthogonal, Lothrus apterus between terminal device.
In a kind of preferred embodiment of the embodiment of the present invention, terminal device can also about be scheduled on target work with base station equipment Make the ascending resource and up sending method on frequency（As terminal device is worked with base station equipment by agreement static state regulation source Ascending resource and up sending method on frequency are the ascending resource and up sending method on target operation frequency）； Or, before frequency spectrum switching, terminal device receives dedicated signaling or system from base station equipment in the working frequency points of source Broadcast message, and in dedicated signaling or system broadcast message carry base station equipment be terminal device distribution in target operation frequently Ascending resource and up sending method on point.Wherein, the up sending method is included but is not limited to：Modulation coding mode, HARQ information, power control information etc..
Step 403, terminal device receives the frequency spectrum switching command from base station equipment；Wherein, in the frequency spectrum switching command Including at least target operation frequency and/or wireless resource configuration.
In a kind of optional embodiment of the embodiment of the present invention, can also be carried in the frequency spectrum switching command base station equipment with Whether the configured information of uplink synchronous is maintained between terminal device.
Can also carry base station equipment in a kind of optional embodiment of the embodiment of the present invention, in the frequency spectrum switching command is The ascending resource on target operation frequency of terminal device distribution；Or, base station equipment is carried for terminal device distribution exists Ascending resource and up sending method on target operation frequency.
Step 404, terminal device is after frequency spectrum switching command is received, if carried in frequency spectrum switching command up Resource, then terminal device need store or update ascending resource（If i.e. currently without ascending resource, directly stored up Resource；If currently there is ascending resource, the ascending resource that there is currently is updated）, and perform step 405；Otherwise, directly perform Step 405.
In a kind of preferred embodiment of the embodiment of the present invention, terminal device after frequency spectrum switching command is received, such as Ascending resource and up sending method are carried in fruit frequency spectrum switching command, then terminal device needs to store or update up money Source and up sending method；If i.e. currently without ascending resource and up sending method, directly storing ascending resource and upper Row sending method；If currently having ascending resource and up sending method, the ascending resource and up hair that there is currently are updated Send mode.
Step 405, terminal device leaves source working frequency points, and perform and target work after frequency spectrum switching command is received Make the down-going synchronous of base station equipment on frequency, that is, search for target operation frequency.
Step 406, terminal device judges whether itself ties up and base station equipment between after target operation frequency is searched Hold uplink synchronous；If it is, performing step 407；If it is not, then uplink synchronous fail, now need using existing frequency spectrum Switching mode, which is repeated no more.
In the embodiment of the present invention, terminal device judges whether itself maintains and base station equipment between on target operation frequency Uplink synchronous, including but not limited to following manner：
Mode one, terminal device judge current time or itself send frequency spectrum handoff completion message moment it is closest Whether the time span between the moment of up Timing Synchronization point adjustment is once carried out not less than specified time threshold（According to reality Experience is set）, whether the centre frequency of target operation frequency and source working frequency points is spaced not less than assigned frequency thresholding（According to reality Border experience is set）；If it is, terminal device determines that itself maintains uplink synchronous and base station equipment between；If not, terminal device Determine that itself does not maintain uplink synchronous and base station equipment between.
Mode two, the finger that whether uplink synchronous are maintained between base station equipment and terminal device is carried in the frequency spectrum switching command When showing information, then terminal device is obtained between base station equipment and terminal device from the frequency spectrum switching command from base station equipment is It is no to maintain the configured information of uplink synchronous, and determine to remain up same between terminal device and base station equipment using the configured information Step does not maintain uplink synchronous.
Step 407, terminal device utilizes ascending resource to be sent to base station equipment to have succeeded for instruction terminal equipment Into the frequency spectrum handoff completion message of frequency spectrum handoff procedure.
In a kind of preferred embodiment of the embodiment of the present invention, terminal device specifically utilizes ascending resource and up sender Formula sends frequency spectrum handoff completion message to base station equipment.
Example IV
A kind of terminal device, such as Fig. 5 are additionally provided based on the inventive concept same with the above method, in the embodiment of the present invention Shown, the terminal device includes：
Management module 11, for before frequency spectrum switches, maintenance terminal equipment to be tieed up with base station equipment in the working frequency points of source Hold uplink synchronous；And, about it is scheduled on the ascending resource on target operation frequency with the base station equipment；Or, worked frequently in source The ascending resource on target operation frequency that the base station equipment is the terminal device distribution is received on point；
Judge module 12, for after target operation frequency is searched, judging that the terminal device sets with the base station Whether uplink synchronous are maintained between standby；
Sending module 13, for when judged result is to be, being sent to the base station equipment using the ascending resource and being used In the frequency spectrum handoff completion message for indicating the terminal device to be successfully completed frequency spectrum handoff procedure.
The management module 11, specifically for the base station equipment by upper in the working frequency points of agreement static state regulation source Row resource is the ascending resource on target operation frequency.
The management module 11, specifically for before frequency spectrum switches, being received in the working frequency points of source and coming from the base station The dedicated signaling or system broadcast message of equipment, and the base station is carried in the dedicated signaling or system broadcast message set Standby is the ascending resource on target operation frequency of terminal device distribution；Or, as authorized user in the working frequency points of source Reappear or source working frequency points channel quality decline when, receive the frequency spectrum switching command from the base station equipment, institute It is described to state in frequency spectrum switching command comprising target operation frequency and/or wireless resource configuration and the base station equipment The ascending resource on target operation frequency of terminal device distribution.
The management module 11, is additionally operable to the up sender being about scheduled on the base station equipment on target operation frequency Formula；Or, it is terminal device distribution on target operation frequency that the base station equipment is received in the working frequency points of source Up sending method；
The sending module 13, specifically for being sent out to the base station equipment using the ascending resource and up sending method Send frequency spectrum handoff completion message.
The management module 11, is further used for the base station equipment by the working frequency points of agreement static state regulation source Up sending method is the up sending method on target operation frequency；Or,
Before frequency spectrum switching, dedicated signaling or system from the base station equipment are received in the working frequency points of source wide Broadcast carry in message, and the dedicated signaling or system broadcast message the base station equipment be the terminal device distribution Up sending method on target operation frequency；Or,
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, reception comes from The frequency spectrum switching command of the base station equipment, matches somebody with somebody in the frequency spectrum switching command comprising target operation frequency and/or Radio Resource The up sending method on target operation frequency that confidence ceases and the base station equipment is the terminal device distribution.
The judge module 12, specifically for judging that current time or terminal device send frequency spectrum handoff completion message Whether the time span between the closest moment for once carrying out up Timing Synchronization point adjustment at moment is not less than the specified time Thresholding, and whether the centre frequency of target operation frequency and source working frequency points is spaced not less than assigned frequency thresholding；If it is, Determine to maintain uplink synchronous between terminal device and the base station equipment；If it is not, then determining that terminal device sets with the base station Uplink synchronous are not maintained between standby；Or, when in the working frequency points of source authorized user reappear or source working frequency points channel During Quality Down, the frequency spectrum switching command from the base station equipment is received, target operation is included in the frequency spectrum switching command Whether uplink synchronous are maintained between frequency and/or wireless resource configuration and the base station equipment and the terminal device Configured information；And, determine the terminal device with the base using the configured information carried in the frequency spectrum switching command Uplink synchronous are maintained between station equipment or uplink synchronous are not maintained.
Wherein, the modules of apparatus of the present invention can be integrated in one, it is also possible to be deployed separately.Above-mentioned module can be closed And be a module, it is also possible to it is further split into multiple submodule.
Embodiment five
A kind of base station equipment, such as Fig. 6 are additionally provided based on the inventive concept same with the above method, in the embodiment of the present invention Shown, the base station equipment includes：
Management module 21, for before frequency spectrum switches, base station maintenance equipment to be tieed up with terminal device in the working frequency points of source Hold uplink synchronous；And, about it is scheduled on the ascending resource on target operation frequency with the terminal device；Or, it is the terminal Equipment distributes the ascending resource on target operation frequency, and the ascending resource is sent into the end in the working frequency points of source End equipment；Wherein, the ascending resource is used to make the terminal device send for indicating the terminal device to succeed Into the frequency spectrum handoff completion message of frequency spectrum handoff procedure；
Receiver module 22, for when the base station equipment target operation frequency recover cell after, in target operation frequently The frequency spectrum handoff completion message that the terminal device is sent using the ascending resource to the base station equipment is received on point.
The management module 21, specifically for the terminal device by upper in the working frequency points of agreement static state regulation source Row resource is the ascending resource on target operation frequency.
The management module 21, specifically for before frequency spectrum switches, being sent out to the terminal device in the working frequency points of source Send and carry the base station equipment in dedicated signaling or system broadcast message, and the dedicated signaling or system broadcast message and be The ascending resource on target operation frequency of the terminal device distribution；Or, when authorized user is again in the working frequency points of source When the channel quality of appearance or source working frequency points declines, frequency spectrum switching command is sent to the terminal device, the frequency spectrum is cut It is the terminal device to change in order comprising target operation frequency and/or wireless resource configuration and the base station equipment The ascending resource on target operation frequency of distribution.
The management module 21, is additionally operable to the up sender being about scheduled on the terminal device on target operation frequency Formula；Or, it is up sending method of the terminal device distribution on target operation frequency, and by institute in the working frequency points of source State up sending method and be sent to the terminal device；
The receiver module 22, specifically for receiving the terminal device on target operation frequency using the up money The frequency spectrum handoff completion message that source and up sending method send to the base station equipment.
The management module 21, is further used for the terminal device by the working frequency points of agreement static state regulation source Up sending method is the up sending method on target operation frequency；Or,
Before frequency spectrum switching, disappear to terminal device transmission dedicated signaling or system broadcasts in the working frequency points of source Breath, and it is terminal device distribution in target that the base station equipment is carried in the dedicated signaling or system broadcast message Up sending method in working frequency points；Or,
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, to the end End equipment sends frequency spectrum switching command, believes comprising target operation frequency and/or radio-resource-configuration in the frequency spectrum switching command Breath and the base station equipment are the up sending method on target operation frequency of the terminal device distribution.
The management module 21, be additionally operable to the authorized user in the working frequency points of source reappear or source working frequency points letter During road Quality Down, frequency spectrum switching command is generated, and the frequency spectrum switching command is sent to the terminal device；The frequency spectrum Set with the terminal comprising target operation frequency and/or wireless resource configuration and the base station equipment in switching command Whether the configured information of uplink synchronous is maintained between standby.
The management module 21 be further used for being determined as follows the base station equipment and the terminal device it Between whether maintain uplink synchronous：Judge that the terminal device sends moment of frequency spectrum handoff completion message and closest once sends Whether the time span between the moment of timing adjustment command works not less than specified time threshold, and target operation frequency with source Whether the centre frequency of frequency is spaced not less than assigned frequency thresholding；If it is, determining the base station equipment with the terminal Uplink synchronous are maintained between equipment；If it is not, then determining not remaining up same between the base station equipment and the terminal device Step.
Wherein, the modules of apparatus of the present invention can be integrated in one, it is also possible to be deployed separately.Above-mentioned module can be closed And be a module, it is also possible to it is further split into multiple submodule.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by Software adds the mode of required general hardware platform to realize, naturally it is also possible to which by hardware, but the former is more in many cases Good implementation method.Based on such understanding, what technical scheme substantially contributed to prior art in other words Part can be embodied in the form of software product, and the computer software product is stored in a storage medium, if including Dry instruction is used to so that a computer equipment（Can be personal computer, server, or network equipment etc.）Perform this hair Method described in bright each embodiment.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram for preferred embodiment, module or stream in accompanying drawing Journey is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device in embodiment can be divided according to embodiment description It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On Stating the module of embodiment can merge into a module, it is also possible to be further split into multiple submodule.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Disclosed above is only several specific embodiments of the invention, but, the present invention is not limited to this, any ability What the technical staff in domain can think change should all fall into protection scope of the present invention.

Claims (22)

1. a kind of frequency spectrum switching method based on cognitive radio system, it is characterised in that before frequency spectrum switching, terminal device With base station equipment uplink synchronous are maintained in the working frequency points of source；The method includes：
The terminal device is about scheduled on the ascending resource on target operation frequency with the base station equipment；Or, the terminal sets It is standby that the up money on target operation frequency that the base station equipment is the terminal device distribution is received in the working frequency points of source Source；
Whether the terminal device judges itself maintained between the base station equipment after target operation frequency is searched Row is synchronous；
If it is, the terminal device is sent for indicating the terminal to set using the ascending resource to the base station equipment The standby frequency spectrum handoff completion message for being successfully completed frequency spectrum handoff procedure；
Methods described is further included：
The terminal device is about scheduled on the up sending method on target operation frequency with the base station equipment；Or, the end It is the upper on target operation frequency of the terminal device distribution that end equipment receives the base station equipment in the working frequency points of source Row sending method；And, the terminal device is sent using the ascending resource and up sending method to the base station equipment Frequency spectrum handoff completion message.
2. the method for claim 1, it is characterised in that the terminal device is about scheduled on target work with the base station equipment Make the ascending resource on frequency, including：
The terminal device is target work by the ascending resource in the working frequency points of agreement static state regulation source with the base station equipment Make the ascending resource on frequency.
3. the method for claim 1, it is characterised in that the terminal device receives the base station in the working frequency points of source Equipment is the ascending resource on target operation frequency of the terminal device distribution, including：
Before frequency spectrum switching, the terminal device received in the working frequency points of source dedicated signaling from the base station equipment or The base station equipment is carried in person's system broadcast message, and the dedicated signaling or system broadcast message for the terminal device The ascending resource on target operation frequency of distribution；Or,
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, the terminal device The frequency spectrum switching command from the base station equipment is received, target operation frequency and/or nothing are included in the frequency spectrum switching command Line resource allocation information and the base station equipment are the up money on target operation frequency of the terminal device distribution Source.
4. the method for claim 1, it is characterised in that the terminal device is about scheduled on target work with the base station equipment Make the up sending method on frequency, including：
The terminal device is mesh by the up sending method in the working frequency points of agreement static state regulation source with the base station equipment Up sending method in mark working frequency points；
It is terminal device distribution in target operation that the terminal device receives the base station equipment in the working frequency points of source Up sending method on frequency, including：
Before frequency spectrum switching, the terminal device received in the working frequency points of source dedicated signaling from the base station equipment or The base station equipment is carried in person's system broadcast message, and the dedicated signaling or system broadcast message for the terminal device The up sending method on target operation frequency of distribution；Or,
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, the terminal device The frequency spectrum switching command from the base station equipment is received, target operation frequency and/or nothing are included in the frequency spectrum switching command Line resource allocation information and the base station equipment are the up transmission on target operation frequency of the terminal device distribution Mode.
5. the method for claim 1, it is characterised in that the terminal device judges itself between the base station equipment Whether uplink synchronous are maintained, including：
The terminal device judges current time or itself sends moment of frequency spectrum handoff completion message closest once to enter Whether the time span between the moment of the up Timing Synchronization point adjustment of row is not less than specified time threshold, and target operation frequency Whether the centre frequency with source working frequency points is spaced not less than assigned frequency thresholding；If it is, determining itself with the base station Uplink synchronous are maintained between equipment；If it is not, then determining that itself does not maintain uplink synchronous between the base station equipment；Or,
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, the terminal device The frequency spectrum switching command from the base station equipment is received, target operation frequency and/or nothing are included in the frequency spectrum switching command Whether the configured information of uplink synchronous is maintained between line resource allocation information and the base station equipment and the terminal device； And, the terminal device determines the terminal device with the base using the configured information carried in the frequency spectrum switching command Uplink synchronous are maintained between station equipment or uplink synchronous are not maintained.
6. a kind of frequency spectrum switching method based on cognitive radio system, it is characterised in that before frequency spectrum switching, base station equipment With terminal device uplink synchronous are maintained in the working frequency points of source；The method includes：
The base station equipment is about scheduled on the ascending resource on target operation frequency with the terminal device；Or, the base station sets The standby ascending resource for terminal device distribution on target operation frequency, and by the ascending resource in the working frequency points of source It is sent to the terminal device；Wherein, the ascending resource is used to make the terminal device send for indicating the terminal to set The standby frequency spectrum handoff completion message for being successfully completed frequency spectrum handoff procedure；
When the base station equipment is after target operation frequency recovers cell, the base station equipment is received on target operation frequency The frequency spectrum handoff completion message that the terminal device is sent using the ascending resource to the base station equipment；
Methods described is further included：
The base station equipment is about scheduled on the up sending method on target operation frequency with the terminal device；Or, the base Station equipment is up sending method of the terminal device distribution on target operation frequency, and will be described in the working frequency points of source Up sending method is sent to the terminal device；And, the base station equipment receives the terminal on target operation frequency The frequency spectrum handoff completion message that ascending resource described in equipment utilization and up sending method send to the base station equipment.
7. method as claimed in claim 6, it is characterised in that the base station equipment is about scheduled on target work with the terminal device Make the ascending resource on frequency, including：
The base station equipment is target work by the ascending resource in the working frequency points of agreement static state regulation source with the terminal device Make the ascending resource on frequency.
8. method as claimed in claim 6, it is characterised in that the base station equipment is in the working frequency points of source by the up money Source is sent to the terminal device, including：
Before frequency spectrum switching, the base station equipment sends dedicated signaling or is in the working frequency points of source to the terminal device System broadcast message, and the base station equipment is carried in the dedicated signaling or system broadcast message for the terminal device is distributed The ascending resource on target operation frequency；Or,
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, the base station equipment Frequency spectrum switching command is sent to the terminal device, comprising target operation frequency and/or wireless money in the frequency spectrum switching command Source configuration information and the base station equipment are the ascending resource on target operation frequency of the terminal device distribution.
9. method as claimed in claim 6, it is characterised in that the base station equipment is about scheduled on target work with the terminal device Make the up sending method on frequency, including：
The base station equipment is mesh by the up sending method in the working frequency points of agreement static state regulation source with the terminal device Up sending method in mark working frequency points；
The up sending method is sent to the terminal device by the base station equipment in the working frequency points of source, including：
Before frequency spectrum switching, the base station equipment sends dedicated signaling or is in the working frequency points of source to the terminal device System broadcast message, and the base station equipment is carried in the dedicated signaling or system broadcast message for the terminal device is distributed The up sending method on target operation frequency；Or,
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, the base station equipment Frequency spectrum switching command is sent to the terminal device, comprising target operation frequency and/or wireless money in the frequency spectrum switching command Source configuration information and the base station equipment are the up sender on target operation frequency of the terminal device distribution Formula.
10. method as claimed in claim 6, it is characterised in that methods described also includes：
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, the base station equipment Generation frequency spectrum switching command, and the frequency spectrum switching command is sent to the terminal device；Wherein, the frequency spectrum switching command In comprising being between target operation frequency and/or wireless resource configuration and the base station equipment and the terminal device The configured information of no maintenance uplink synchronous.
11. methods as claimed in claim 10, it is characterised in that whether tieed up between the base station equipment and the terminal device The determination mode for holding uplink synchronous includes：
The base station equipment judges that moment closest once transmission of the terminal device transmission frequency spectrum handoff completion message is determined When adjustment order moment between time span whether not less than specified time threshold, and target operation frequency and source work frequency Whether the centre frequency of point is spaced not less than assigned frequency thresholding；If it is, the base station equipment determines itself with the end Uplink synchronous are maintained between end equipment；If it is not, then the base station equipment determines that itself is not maintained between the terminal device Uplink synchronous.
A kind of 12. terminal devices, it is characterised in that including：
Management module, for before frequency spectrum switches, maintenance terminal equipment to remain up with base station equipment in the working frequency points of source It is synchronous；And, about it is scheduled on the ascending resource on target operation frequency with the base station equipment；Or, connect in the working frequency points of source Receive the ascending resource on target operation frequency that the base station equipment is the terminal device distribution；
Judge module, for after target operation frequency is searched, judging between the terminal device and the base station equipment Whether uplink synchronous are maintained；
Sending module, for when judged result is to be, being sent for indicating to the base station equipment using the ascending resource The terminal device is successfully completed the frequency spectrum handoff completion message of frequency spectrum handoff procedure；
The management module, is additionally operable to the up sending method being about scheduled on the base station equipment on target operation frequency；Or, The up transmission on target operation frequency that the base station equipment is the terminal device distribution is received in the working frequency points of source Mode；
The sending module, specifically for sending frequency spectrum to the base station equipment using the ascending resource and up sending method Handoff completion message.
13. terminal devices as claimed in claim 12, it is characterised in that
The management module, specifically for the base station equipment by the ascending resource in the working frequency points of agreement static state regulation source It is the ascending resource on target operation frequency.
14. terminal devices as claimed in claim 12, it is characterised in that
The management module, specifically for before frequency spectrum switches, being received in the working frequency points of source from the base station equipment It is institute that the base station equipment is carried in dedicated signaling or system broadcast message, and the dedicated signaling or system broadcast message State the ascending resource on target operation frequency of terminal device distribution；Or, when authorized user goes out again in the working frequency points of source Now or source working frequency points channel quality decline when, receive the frequency spectrum switching command from the base station equipment, the frequency spectrum Target operation frequency and/or wireless resource configuration and the base station equipment are included in switching command for the terminal sets The ascending resource on target operation frequency that back-up is matched somebody with somebody.
15. terminal devices as claimed in claim 12, it is characterised in that
The management module, is further used for the base station equipment by the up hair in the working frequency points of agreement static state regulation source It is the up sending method on target operation frequency to send mode；Or,
Before frequency spectrum switching, dedicated signaling or system broadcasts from the base station equipment are received in the working frequency points of source and is disappeared Breath, and it is terminal device distribution in target that the base station equipment is carried in the dedicated signaling or system broadcast message Up sending method in working frequency points；Or,
When authorized user reappears or when the channel quality of source working frequency points declines in the working frequency points of source, receive from described The frequency spectrum switching command of base station equipment, believes in the frequency spectrum switching command comprising target operation frequency and/or radio-resource-configuration Breath and the base station equipment are the up sending method on target operation frequency of the terminal device distribution.
16. terminal devices as claimed in claim 12, it is characterised in that
The judge module, specifically for judge current time or terminal device send moment of frequency spectrum handoff completion message away from Time span between the moment for carrying out the adjustment of up Timing Synchronization point from the last time whether not less than specified time threshold, and Whether target operation frequency is spaced not less than assigned frequency thresholding with the centre frequency of source working frequency points；If it is, determining eventually Uplink synchronous are maintained between end equipment and the base station equipment；If it is not, then determining between terminal device and the base station equipment Uplink synchronous are not maintained；Or, when in the working frequency points of source authorized user reappear or the channel quality of source working frequency points under During drop, receive the frequency spectrum switching command from the base station equipment, in the frequency spectrum switching command comprising target operation frequency and/ Or whether maintain the instruction of uplink synchronous to believe between wireless resource configuration and the base station equipment and the terminal device Breath；And, using in the frequency spectrum switching command carry configured information determine the terminal device and the base station equipment it Between maintain uplink synchronous or not maintaining uplink synchronous.
A kind of 17. base station equipments, it is characterised in that including：
Management module, for before frequency spectrum switches, base station maintenance equipment to remain up with terminal device in the working frequency points of source It is synchronous；And, about it is scheduled on the ascending resource on target operation frequency with the terminal device；Or, it is the terminal device point The ascending resource on target operation frequency is fitted over, and the ascending resource is sent to the terminal in the working frequency points of source and set It is standby；
Wherein, the ascending resource is used to make the terminal device send for indicating the terminal device to be successfully completed frequency Compose the frequency spectrum handoff completion message of handoff procedure；
Receiver module, for when the base station equipment is after target operation frequency recovers cell, being connect on target operation frequency Receive the frequency spectrum handoff completion message that the terminal device is sent using the ascending resource to the base station equipment；
The management module, is additionally operable to the up sending method being about scheduled on the terminal device on target operation frequency；Or, It is up sending method of the terminal device distribution on target operation frequency, and by the up hair in the working frequency points of source Mode is sent to be sent to the terminal device；
The receiver module, specifically for receiving the terminal device on target operation frequency using the ascending resource and upper The frequency spectrum handoff completion message that row sending method sends to the base station equipment.
18. base station equipments as claimed in claim 17, it is characterised in that
The management module, specifically for the terminal device by the ascending resource in the working frequency points of agreement static state regulation source It is the ascending resource on target operation frequency.
19. base station equipments as claimed in claim 17, it is characterised in that
The management module, specifically for before frequency spectrum switches, sending special to the terminal device in the working frequency points of source The base station equipment is carried in signaling or system broadcast message, and the dedicated signaling or system broadcast message for the end The ascending resource on target operation frequency of end equipment distribution；Or, when in the working frequency points of source authorized user reappear or When the channel quality of person source working frequency points declines, frequency spectrum switching command, the frequency spectrum switching command are sent to the terminal device In comprising target operation frequency and/or wireless resource configuration and the base station equipment be the terminal device distribution Ascending resource on target operation frequency.
20. base station equipments as claimed in claim 17, it is characterised in that
The management module, is further used for the terminal device by the up hair in the working frequency points of agreement static state regulation source It is the up sending method on target operation frequency to send mode；Or,
Before frequency spectrum switching, dedicated signaling or system broadcast message are sent to the terminal device in the working frequency points of source, And it is terminal device distribution in target work that the base station equipment is carried in the dedicated signaling or system broadcast message Make the up sending method on frequency；Or,
When in the working frequency points of source authorized user reappear or source working frequency points channel quality decline when, set to the terminal Preparation send frequency spectrum switching command, in the frequency spectrum switching command comprising target operation frequency and/or wireless resource configuration, with And the up sending method on target operation frequency that the base station equipment is the terminal device distribution.
21. base station equipments as claimed in claim 17, it is characterised in that
The management module, be additionally operable to the authorized user in the working frequency points of source reappear or source working frequency points channel quality During decline, frequency spectrum switching command is generated, and the frequency spectrum switching command is sent to the terminal device；The frequency spectrum switching life Included between target operation frequency and/or wireless resource configuration and the base station equipment and the terminal device in order Whether the configured information of uplink synchronous is maintained.
22. base station equipments as claimed in claim 21, it is characterised in that
The management module be further used for being determined as follows between the base station equipment and the terminal device whether Maintain uplink synchronous：
Judge that the terminal device sends the moment closest once transmission timing adjustment command of frequency spectrum handoff completion message Time span between moment whether not less than specified time threshold, and target operation frequency and source working frequency points centre frequency Whether interval is not less than assigned frequency thresholding；If it is, determining to be maintained between the base station equipment and the terminal device Row is synchronous；If it is not, then determining not maintaining uplink synchronous between the base station equipment and the terminal device.
CN201210196139.9A 2012-06-14 2012-06-14 A kind of frequency spectrum switching method and equipment based on cognitive radio system Active CN103491548B (en)

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