CN103716846A

CN103716846A - Frequency spectrum switching method and device

Info

Publication number: CN103716846A
Application number: CN201210370476.5A
Authority: CN
Inventors: 龚磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2014-04-09
Anticipated expiration: 2032-09-28
Also published as: WO2014048375A1; CN103716846B

Abstract

The invention discloses a frequency spectrum switching method and a device, and belongs to the field of communication. The frequency spectrum switching method includes the following steps that: a frequency spectrum switching request message is acquired, wherein the frequency spectrum switching request message contains a target frequency spectrum which is an idle frequency spectrum that is unoccupied by a primary user of the target frequency spectrum; a time slot used for frequency spectrum switching is acquired; a time protection interval of data uplink and downlink switching is acquired; a time point used for the frequency spectrum switching is determined according to the time slot used for the frequency spectrum switching and the time protection interval; and a currently used work frequency spectrum is switched to the target frequency spectrum according to the time slot used for the frequency spectrum switching and the time point used for the frequency spectrum switching. A base station provided by the invention includes a first receiving module, a first acquisition module and a first switching module. With the frequency spectrum switching method and the device of the invention adopted, when the primary user corresponding to the work frequency spectrum needs to transmit data, the currently used work frequency spectrum can be switched to the target frequency spectrum.

Description

A kind of method and apparatus that switches frequency spectrum

Technical field

The present invention relates to the communications field, particularly a kind of method and apparatus that switches frequency spectrum.

Background technology

Current frequency spectrum Distursement is fixed allocation, and management organization is that specific transactions distributes fixing frequency spectrum resource, and the user of this business is the primary user of this frequency spectrum resource.Wherein, most of primary users are not all frequency spectrum resources that always use as its distribution, neither be everywhere using, be the frequency spectrum resource of its distribution, so just there is some time period and some geographical position, partial frequency spectrum is fully used and in idle condition.In order to improve the utilance of frequency spectrum resource, there is at present CR(Cognitive Radio, cognitive radio) technology, CR technology is by perception primary user's wireless frequency spectrum environment, or database informs its spectrum information, or the mode of perception and database associated working, can find the unappropriated frequency spectrum of primary user whenever and wherever possible, and under the prerequisite of interfere with primary users not, in the frequency spectrum of finding, access, realize the use frequency spectrum resource of the formula of seizing every opportunity.

Wherein, when frequency spectrum corresponding to primary user used by other users, while using its corresponding frequency spectrum if primary user needs transceiving data, just other users need to be switched on the frequency spectrum of other idle conditions from this frequency spectrum, take and guarantee not affect the frequency spectrum that primary user's use is its distribution, yet also have any scheme to realize at present, other users are not switched on the frequency spectrum of other idle conditions from the frequency spectrum of primary correspondence.

Summary of the invention

In the time of need to transmitting data in order to work as primary user corresponding to frequency spectrums of operation, realized the frequency spectrums of operation of current use has been switched to target spectrum, the invention provides a kind of method and apparatus that switches frequency spectrum.Described technical scheme is as follows:

The first aspect of the embodiment of the present invention provides a kind of method of switching frequency spectrum, and described method comprises:

Obtain frequency spectrum handover request message, described frequency spectrum handover request message comprises target spectrum, the unappropriated idle frequency spectrum of primary user that described target spectrum is this target spectrum;

Obtain the time slot switching for frequency spectrum;

Obtain and protect data uplink and descending change-over time interval;

According to the described time slot switching for frequency spectrum and described Time Guard Interval, be identified for the time point that frequency spectrum switches;

According to the described time slot switching for frequency spectrum and the described time point switching for frequency spectrum, the frequency spectrums of operation of current use is switched to target spectrum.

Wherein as described in a kind of execution mode of implementing, obtain the time slot switching for frequency spectrum, comprising:

In special subframe, select a special subframe;

Time slot corresponding to the special subframe of described selection is defined as to the time slot switching for frequency spectrum.

The time slot switching for frequency spectrum described in described basis and described Time Guard Interval obtain the time point switching for frequency spectrum, comprising:

The two ends of the time period that GP that the described time slot switching for frequency spectrum is comprised is shared respectively deduct a described Time Guard Interval;

Within the remaining time, select a time point, the time point of described selection is defined as to the time point switching for frequency spectrum.

As obtaining the time slot switching for frequency spectrum described in another execution mode, comprising:

In time slot after current time, select a time slot;

The data division that the time slot of described selection sends is set to sky;

The time slot of described selection is defined as to the time slot switching for frequency spectrum.

As a kind of concrete execution mode, described in obtain the time slot switching for frequency spectrum, comprising:

Select a time slot;

The time slot configuration of described selection is become to send single frequency network multicast gap frame;

As a kind of, specific to obtaining according to the described time slot switching for frequency spectrum and described Time Guard Interval the time point switching for frequency spectrum described in execution mode, comprising:

The two ends of the time period that data division that the described time slot switching for frequency spectrum is comprised is shared respectively deduct a described Time Guard Interval;

Described acquisition time protection interval, comprising:

Obtain default Time Guard Interval; Or,

Obtain each user equipment (UE) in base station range to the propagation delay of base station, from the propagation delay of described each UE, select maximum propagation delay, the propagation delay of described maximum is defined as to Time Guard Interval.

As a kind of concrete execution mode, described in obtain the time slot switching for frequency spectrum and the time point switching for frequency spectrum before, also comprise:

Receive the frequency spectrum handover request message that awareness apparatus sends, described frequency spectrum handover request message is carried target spectrum; Or,

The monitoring state of one or more frequency spectrums that the frequency spectrums of operation of described current use is monitored and other are preset, when monitoring out the primary user corresponding to frequency spectrums of operation of its current use data need to be transmitted, from described other default one or more frequency spectrums, obtain the target spectrum that state is idle condition; Or,

From database, obtain the switching time of carrying out frequency spectrum switching, current time is monitored, when monitoring out described current time and be described switching time, from described database, obtain target spectrum.

After the described time slot and the time point for frequency spectrum switching obtaining for frequency spectrum switching, also comprise:

Send frequency spectrum handover request message to UE, described frequency spectrum handover request message is carried the described time slot switching for frequency spectrum, described time point and the described target spectrum switching for frequency spectrum, to ask described UE to carry out frequency spectrum switching.

Second aspect of the embodiment of the present invention, a kind of method that also provides frequency spectrum to switch, described method comprises:

Receive the request message of the frequency spectrum switching of base station transmission, described frequency spectrum request message carries the described time slot switching for frequency spectrum, described time point and the described target spectrum switching for frequency spectrum;

According to the described time slot switching for frequency spectrum and the described time point switching for frequency spectrum, the frequency spectrums of operation of current use is switched to described target spectrum.

The 3rd aspect of the embodiment of the present invention, provides a kind of method of switching frequency spectrum, and described method comprises:

Frequency spectrums of operation to the current use in base station is monitored;

If monitor primary user corresponding to described frequency spectrums of operation, need to transmit data, determine target spectrum and generate frequency spectrum handover request, described frequency spectrum handover request message is carried described target spectrum, the unappropriated idle frequency spectrum of primary user that described target spectrum is this target spectrum;

Send frequency spectrum handover request message to described base station, described frequency spectrum handover request message is carried described target spectrum, makes described base station that frequency spectrums of operation is switched to described target spectrum.

As a kind of implementation method, described in obtain target spectrum before, also comprise:

State to default one or more frequency spectrums is monitored in real time, obtains the frequency spectrum that current state is idle condition.

The described target spectrum that obtains, comprising:

The frequency spectrum that is idle condition from described current state, select a frequency spectrum, the frequency spectrum of described selection is defined as to target spectrum.

The 4th aspect of the embodiment of the present invention, also provides a kind of base station, and described base station comprises:

The first acquisition module, be used for for obtaining frequency spectrum handover request message, described frequency spectrum handover request message comprises target spectrum, described target spectrum is the unappropriated idle frequency spectrum of the primary user of this target spectrum, then obtain the time slot switching for frequency spectrum, obtain again the Time Guard Interval of up-downgoing conversion, according to the described time slot switching for frequency spectrum and described Time Guard Interval, be identified for the time point that frequency spectrum switches;

The first handover module, for according to the described time slot switching for frequency spectrum and the described time point switching for frequency spectrum, switches to described target spectrum by the frequency spectrums of operation of current use.

As an embodiment of the present embodiment, described the first acquiring unit specifically comprises:

The first chooser unit, selects a special subframe for the special subframe after current time;

First determines subelement, for the time slot that the special subframe of described selection is defined as switch for frequency spectrum.

The 5th aspect of the embodiment of the present invention, also provides a kind of user equipment (UE), and described UE comprises:

The second receiver module, the request message switching for receiving the frequency spectrum of base station transmission, described frequency spectrum request message carries the described time slot switching for frequency spectrum, described time point and the described target spectrum switching for frequency spectrum;

The second handover module, for according to the described time slot switching for frequency spectrum and the described time point switching for frequency spectrum, switches to described target spectrum by the frequency spectrums of operation of current use.

The 6th aspect of the embodiment of the present invention, also provides a kind of awareness apparatus, and described awareness apparatus comprises:

The first monitoring module, for monitoring the frequency spectrums of operation of the current use in base station;

The second acquisition module, in the time of need to transmitting data, obtains target spectrum for monitoring out primary user corresponding to described frequency spectrums of operation;

The second sending module, be used for sending frequency spectrum handover request message to described base station, described frequency spectrum handover request message is carried described target spectrum, make described base station that frequency spectrums of operation is switched to described target spectrum and generates frequency spectrum handover request, described frequency spectrum handover request message is carried described target spectrum, the unappropriated idle frequency spectrum of primary user that described target spectrum is this target spectrum.

A base station, described base station comprises memory and at least one processor, for carrying out the method for described switching frequency spectrum.

A user equipment (UE), described UE comprises memory and at least one processor, for carrying out the method for described switching frequency spectrum.

An awareness apparatus, described awareness apparatus comprises memory and at least one processor, for carrying out the method for described switching frequency spectrum.

In embodiments of the present invention, receive the frequency spectrum handover request message that awareness apparatus sends, this frequency spectrum handover request message is carried target spectrum, obtain the time slot switching for frequency spectrum and the time point switching for frequency spectrum, according to the time slot switching for frequency spectrum and the time point that switches for frequency spectrum, the frequency spectrums of operation of current use is switched to target spectrum.So, when primary user corresponding to frequency spectrums of operation need to be transmitted data, realized the frequency spectrums of operation of current use has been switched to target spectrum.

Accompanying drawing explanation

Fig. 1 is that the embodiment of the present invention provides a kind of method flow diagram that switches frequency spectrum;

Fig. 2 is a kind of method flow diagram that switches frequency spectrum that another embodiment of the present invention provides;

Fig. 3 is a kind of transmission periodic structure schematic diagram that another embodiment of the present invention provides;

Fig. 4 is a kind of transmission periodic structure schematic diagram that another embodiment of the present invention provides;

Fig. 5 is a kind of method flow diagram that switches frequency spectrum that another embodiment of the present invention provides;

Fig. 6 is a kind of structure of time slot that another embodiment of the present invention provides;

Fig. 7 is a kind of method flow diagram that switches frequency spectrum that another embodiment of the present invention provides;

Fig. 8 is a kind of method flow diagram that switches frequency spectrum that another embodiment of the present invention provides;

Fig. 9 a is a kind of user device architecture schematic diagram that the embodiment of the present invention provides;

Fig. 9 b is a kind of architecture of base station schematic diagram that another embodiment of the present invention provides;

Figure 10 is a kind of UE structural representation that another embodiment of the present invention provides;

Figure 11 is a kind of awareness apparatus structural representation that another embodiment of the present invention provides.

Embodiment

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.

Referring to Fig. 1, the embodiment of the present invention provides a kind of method of switching frequency spectrum, comprising:

Step S101: obtain frequency spectrum handover request message, described frequency spectrum handover request message comprises target spectrum, the unappropriated idle frequency spectrum of primary user that described target spectrum is this target spectrum;

Step S102: obtain the time slot switching for frequency spectrum;

Step S103: obtain and protect data uplink and descending change-over time interval;

Step S104: be identified for the time point that frequency spectrum switches according to the described time slot switching for frequency spectrum and described Time Guard Interval;

Step S105: according to the time slot switching for frequency spectrum and the time point that switches for frequency spectrum, the frequency spectrums of operation of current use is switched to target spectrum.

Wherein, the executive agent of the present embodiment can be base station.

Wherein, time slot comprises and is not restricted to subframe, half subframe, frame.

In embodiments of the present invention, obtain the time slot switching for frequency spectrum and the time point switching for frequency spectrum, according to the time slot switching for frequency spectrum and the time point that switches for frequency spectrum, the frequency spectrums of operation of current use is switched to target spectrum.So, when primary user corresponding to frequency spectrums of operation need to be transmitted data, realized the frequency spectrums of operation of current use has been switched to target spectrum.

Referring to Fig. 2, the embodiment of the present invention provides a kind of method of switching frequency spectrum, comprising:

Step S201: awareness apparatus is monitored the frequency spectrums of operation of the current use in base station and the monitoring state to other default one or more frequency spectrums, this frequency spectrums of operation is other frequency spectrums beyond the frequency spectrum that distributes of wireless communication system;

Wherein, other users' of frequency spectrums of operation of the current use in base station frequency spectrum, the current frequency spectrums of operation of not using of these other users, so now base station can take this frequency spectrums of operation, UE(User Equipment in base station and base station range, subscriber equipment) can transmit data by this frequency spectrums of operation.

Wherein, awareness apparatus is monitored the frequency spectrums of operation of the current use in base station in real time, and whether monitor primary user corresponding to this frequency spectrums of operation needs to transmit data by this frequency spectrums of operation; And the monitoring state of awareness apparatus to other default one or more frequency spectrums, monitoring does well as the frequency spectrum of idle condition.

Wherein, if primary user corresponding to the frequency spectrums of operation of the current use in base station need to be transmitted data by this frequency spectrums of operation, first primary user sends test post by this frequency spectrums of operation, and when awareness apparatus is monitored the test post that primary user sends, just determining primary user need to transmit data by this frequency spectrums of operation.

Wherein, awareness apparatus can move frequency spectrums of operation and other the default one or more frequency spectrums that the perception algorithm self comprising carrys out the current use of real-time monitored base stations.

Wherein, awareness apparatus can be arranged on outside base station and also can be integrated on base station.

Step S202: awareness apparatus, when monitoring the primary user corresponding to frequency spectrums of operation of the current use in base station and need to transmit data, obtains target spectrum, sends frequency spectrum handover request message to base station, and this frequency spectrum handover request message is carried target spectrum;

Particularly, awareness apparatus is when monitoring out the primary user corresponding to frequency spectrums of operation of the current use in base station and need to transmit data, select a frequency spectrum at random from the frequency spectrum that the state monitored out is idle condition, the frequency spectrum of selection is defined as to target spectrum, send frequency spectrum handover request message to base station, this frequency spectrum handover request message is carried target spectrum.

Wherein, the frequency spectrum handover request message that target spectrum is carried in awareness apparatus transmission is to base station, for asking base station that the frequency spectrums of operation of current use is switched to target spectrum.

Step S203: base station receives the frequency spectrum handover request message that awareness apparatus sends, obtains the time slot switching for frequency spectrum;

Particularly, base station receives the frequency spectrum handover request message that awareness apparatus sends, and selects a special subframe in special subframe, the special subframe of selection is defined as to the time slot switching for frequency spectrum.

Wherein, in special subframe, select a special subframe, can comprise:

Judge in transmission cycle at current place and whether also have special subframe, if existed, from the transmission cycle memory at current place special subframe select a special subframe, if there is no, the special subframe comprising, select a special subframe within the next one transmission cycle; Preferably, can from the transmission cycle memory at current place special subframe or preferentially the special subframe that comprises select one from current immediate special subframe within the next one transmission cycle.

Wherein, in wireless communication system, between base station and UE, can transmit data by the transmission cycle, each transmission cycle can comprise ten subframes, in these ten subframes, has one or two special subframe; For example, referring to Fig. 3, in the transmission cycle, comprise and send 0,1,2,3,4,5,6,7,8 and 90 subframe of subframe, and subframe 1 and 6 is special subframe.

Wherein, in the present embodiment, awareness apparatus can be integrated in base station, the monitoring state of one or more frequency spectrums that so base station can be monitored and other are preset the frequency spectrums of operation of its current use, when monitoring out the primary user corresponding to frequency spectrums of operation of its current use data need to be transmitted, from other frequency spectrums, obtain the target spectrum that state is idle condition.

Wherein, in the present embodiment, can be in advance in the database of base station configurating base station carry out the time of frequency spectrum switching and the target spectrum of switching, correspondingly, it is, while carrying out time that frequency spectrum changes, to obtain target spectrum from database that base station monitoring goes out current time.

Step S204: base station obtains the Time Guard Interval of up-downgoing conversion, according to the time slot switching for frequency spectrum and the Time Guard Interval obtaining, obtains the time point switching for frequency spectrum;

Particularly; acquisition time protection interval; for frequency spectrum, switching the GP(Guard Period that time slot comprises; up-downgoing change-over time) two ends of shared time period respectively deduct a Time Guard Interval; within the remaining time, select a time point, the time point of selection is defined as to the time point switching for frequency spectrum.

Wherein, acquisition time protection interval, can comprise:

Obtain default Time Guard Interval; Or, obtain the propagation delay of each UE in base station range, from the propagation delay of each UE, select maximum propagation delay, the maximum propagation delay of selecting is defined as to Time Guard Interval.

Wherein, referring to Fig. 4; special subframe comprises DwPTS(Downlink Pilot Time Slot; descending pilot frequency time slot), GP and UpPTS(Uplink Pilot Time Slot; uplink pilot time slot); GP is free timeslot, and respectively deducts a Time Guard Interval at the two ends of shared time period of GP, obtains remaining time T.

Step S205: base station sends frequency spectrum handover request message to UE, this frequency spectrum handover request message is carried the time slot switching for frequency spectrum, the time point and the target spectrum that for frequency spectrum, switch;

Step S206: base station, according to being used for the time slot of frequency spectrum switching and the time point switching for frequency spectrum, switches to target spectrum by the frequency spectrums of operation of self;

Particularly, during the time point that for frequency spectrum switch of base station in the time slot switching for frequency spectrum, the frequency spectrums of operation of self current use is switched to target spectrum.

Step S207:UE receives the frequency spectrum handover request message that base station sends, and the time slot switching for frequency spectrum carrying according to this frequency spectrum handover request message and the time point switching for frequency spectrum, switch to target spectrum by the frequency spectrums of operation of self.

Particularly, UE receives the frequency spectrum handover request message that base station sends, this frequency spectrum handover request message is carried the time slot switching for frequency spectrum, the time point and the target spectrum that for frequency spectrum, switch, during the time point switching for frequency spectrum in the time slot switching for frequency spectrum, the frequency spectrums of operation of self current use is switched to target spectrum.

Wherein, after base station and UE switch to target spectrum by the frequency spectrums of operation of current use, base station and UE, at target spectrum transmitting data, have ensured the business continuance between base station and UE.

In embodiments of the present invention, base station receives the frequency spectrum handover request message that awareness apparatus sends, this frequency spectrum handover request message is carried target spectrum, obtain the time slot switching for frequency spectrum and the time point switching for frequency spectrum, according to the time slot switching for frequency spectrum and the time point that switches for frequency spectrum, the frequency spectrums of operation of current use is switched to target spectrum, and the frequency spectrum handover request message of carrying the time slot switching for frequency spectrum, the time point switching for frequency spectrum and target spectrum sending is to UE; UE, according to being used for the time slot of frequency spectrum switching and the time point switching for frequency spectrum, switches to target spectrum by the frequency spectrums of operation of current use.So, when primary user corresponding to frequency spectrums of operation need to be transmitted data, base station and UE have realized the frequency spectrums of operation of current use have been switched to target spectrum, guarantee that primary user can normal transmission data.

Referring to Fig. 5, the embodiment of the present invention provides a kind of method of switching frequency spectrum, comprising:

Step S301-S302: same or similar with step S201-S202 respectively, at this, no longer describe in detail;

Step S303: base station receives the frequency spectrum handover request message that awareness apparatus sends, obtains the time slot switching for frequency spectrum;

Particularly, base station receives the frequency spectrum handover request message that awareness apparatus sends, and selects a time slot, and time slot is a data transmitting period, and the data division that the time slot of selection comprises is set to sky, then the sub-slots of selection is defined as to the time slot for frequency spectrum switching; Or,

Base station receives the frequency spectrum handover request message that awareness apparatus sends, and selects a time slot, and time slot is a data transmitting period, and the time slot configuration of selection is become to single frequency network multicast gap frame, the time slot of selection is defined as to the time slot switching for frequency spectrum.

Wherein, referring to Fig. 6, for any time slot, this time slot comprises frame head and data division, and the control information of this time slot is transmitted at frame head in base station in the shared time period, and in the shared time period, transmits the data that this time slot comprises at data division; In time slot after current time, can select at random a time slot, the data division of this time slot is set to sky, and transfer of data is not carried out in base station in the shared time period at the data division of this time slot; Then at the two ends of shared time period of the data division of this time slot, respectively deduct a Time Guard Interval.

Wherein, single frequency network multicast gap frame comprises frame head and data division, and frame head comprises the control information of single frequency network multicast gap frame, and data division is empty.

Wherein, in the present embodiment, awareness apparatus can be integrated in base station, the monitoring state of one or more frequency spectrums that so base station can be monitored and other are preset the frequency spectrums of operation of its current use, when monitoring out the primary user corresponding to frequency spectrums of operation of its current use data need to be transmitted, from other one or more frequency spectrums, obtain the target spectrum that state is idle condition.

Wherein, in the present embodiment, can be in advance in the database of base station configurating base station carry out the switching time of frequency spectrum switching and the target spectrum of switching, correspondingly, base station obtains switching time from database, current time is monitored, and is, while carrying out time that frequency spectrum changes, to obtain target spectrum from database when monitoring out current time.

Step S304: base station obtains the Time Guard Interval of up-downgoing conversion, obtains according to the Time Guard Interval obtaining and the time slot that switches for frequency spectrum the time point switching for frequency spectrum;

Particularly; acquisition time protection interval; at the two ends of switching the time period at the data division place that time slot comprises for frequency spectrum, respectively deduct a Time Guard Interval, within the remaining time, select a time point, the time point of selection is defined as to the time point switching for frequency spectrum.

Wherein, acquisition time protection interval, can comprise:

Step S305: base station sends frequency spectrum handover request message to UE, this frequency spectrum handover request message is carried the time slot switching for frequency spectrum, the time point and the target spectrum that for frequency spectrum, switch;

Step S306: base station, according to being used for the time slot of frequency spectrum switching and the time point switching for frequency spectrum, switches to target spectrum by the frequency spectrums of operation of self;

Step S307:UE receives the frequency spectrum handover request message that base station sends, and the time slot switching for frequency spectrum carrying according to this frequency spectrum handover request message and the time point switching for frequency spectrum, switch to target spectrum by the frequency spectrums of operation of self.

Referring to Fig. 7, a kind of method that the embodiment of the present invention provides frequency spectrum to switch, comprising:

Step S401: receive the request message of the frequency spectrum switching of base station transmission, this frequency spectrum request message carries the time slot switching for frequency spectrum, the time point and the target spectrum that switch for frequency spectrum;

Step S402: according to the time slot switching for frequency spectrum and the time point that switches for frequency spectrum, the frequency spectrums of operation of current use is switched to target spectrum.

Wherein, the executive agent of the present embodiment can be UE.

In embodiments of the present invention, receive the frequency spectrum handover request message that base station sends, this frequency spectrum handover request message is carried the time slot switching for frequency spectrum, the time point and the target spectrum that for frequency spectrum, switch, according to the time slot switching for frequency spectrum and the time point that switches for frequency spectrum, the frequency spectrums of operation of current use is switched to target spectrum.So, when primary user corresponding to frequency spectrums of operation need to be transmitted data, realized the frequency spectrums of operation of current use has been switched to target spectrum.

Referring to Fig. 8, the embodiment of the present invention provides a kind of method of switching frequency spectrum, comprising:

Step S501: the frequency spectrums of operation to the current use in base station is monitored;

Particularly, the frequency spectrums of operation of the current use in base station is monitored in real time.

Step S502: need to transmit data if monitor primary user corresponding to the frequency spectrums of operation of the current use in base station, determine target spectrum and generate frequency spectrum handover request, this frequency spectrum handover request message is carried target spectrum, the unappropriated idle frequency spectrum of primary user that target spectrum is this target spectrum;

Step S503: send frequency spectrum handover request message to base station, make base station frequency spectrums of operation be switched to the target spectrum obtaining.

Wherein, the executive agent of the present embodiment can be awareness apparatus.

In embodiments of the present invention, frequency spectrums of operation to the current use in base station is monitored in real time, when primary user corresponding to frequency spectrums of operation who monitors out the current use in base station need to be transmitted data, obtain target spectrum, send frequency spectrum handover request message to base station, this frequency spectrum handover request message is carried the target spectrum obtaining, and makes base station frequency spectrums of operation be switched to the target spectrum obtaining.So, when primary user corresponding to frequency spectrums of operation need to be transmitted data, realized the frequency spectrums of operation of current use has been switched to target spectrum.

The embodiment of the present invention further provides the device embodiment that realizes each step and method in said method embodiment.The embodiment of the present invention can be applicable to the base station in various communication systems, terminal and sensing device.Fig. 9 a shows a kind of embodiment of subscriber equipment, and in this embodiment, equipment 30 comprises radiating circuit 302, receiving circuit 303, power controller 304, decoding processor 305, processing unit 306, memory 307 and antenna 301.The operation of processing unit 306 control appliances 30, processing unit 306 can also be called CPU.Memory 307 can comprise read-only memory and random access memory, and provides instruction and data to processing unit 306.A part for memory 307 can also comprise non-volatile row random access memory (NVRAM).In concrete application, equipment 30 can embed or itself can be exactly the Wireless Telecom Equipment of mobile phone and so on for example, and further equipment 30 has also illustrated the hardware of general base station to realize.Can also comprise in addition the carrier that holds radiating circuit 302 and receiving circuit 303, to carry out data transmission and reception between permission equipment 30 and remote location.Radiating circuit 302 and receiving circuit 303 can be coupled to antenna 301.Each assembly of equipment 30 is coupled by bus system 3100, and wherein bus system 3100, except comprising data/address bus, also comprises power bus, control bus and status signal bus in addition.But for the purpose of clearly demonstrating, in the drawings various buses are all designated as to bus system 3100.Equipment 30 can also comprise processing unit 306 for the treatment of signal, comprise power controller 304, decoding processor 305 in addition.

The method that the invention described above embodiment discloses can be mainly used in processing unit 306, in other words by the processor of processing unit 306 to realize.In processing unit 306, can comprise a kind of integrated circuit (IC) chip, there is the disposal ability of signal.In implementation procedure, each step of said method can complete by the integrated logic circuit of hardware or the instruction of form of software of processor 305.These instructions can be realized and control to coordinate by processor 306 wherein.The method disclosing for carrying out the embodiment of the present invention, above-mentioned decoding processor can be general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), ready-made programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic device, discrete hardware components.Can realize or carry out disclosed each method, step and logic diagram in the embodiment of the present invention.General processor can be that microprocessor or this processor can be also the processors of any routine, decoder etc.Step in conjunction with the disclosed method of the embodiment of the present invention can directly be presented as that hardware decoding processor is complete, or complete with the hardware in decoding processor and software module combination.Software module can be positioned at random asccess memory, and flash memory, read-only memory, in the storage medium of this area maturations such as programmable read only memory or electrically erasable programmable memory, register.This storage medium is positioned at memory 307, and the information in decoding unit read memory 307 completes the step of said method in conjunction with its hardware.

Referring to Fig. 9 b, the embodiment of the present invention provides a kind of base station, comprising:

The first acquisition module 601, for obtaining frequency spectrum handover request message, described frequency spectrum handover request message comprises target spectrum, described target spectrum is the unappropriated idle frequency spectrum of the primary user of this target spectrum, then obtain the time slot switching for frequency spectrum, obtain again the Time Guard Interval of up-downgoing conversion, according to the described time slot switching for frequency spectrum and described Time Guard Interval, be identified for the time point that frequency spectrum switches;

The first handover module 602, for according to the described time slot switching for frequency spectrum and the described time point switching for frequency spectrum, switches to target spectrum by the frequency spectrums of operation of current use.

In concrete hardware is realized, the first acquisition module 601 and the first handover module 602 are the processing units in processing unit 306, by treatment circuit or processor, realize.

Wherein, the first acquisition module 601 specifically comprises:

First obtains subelement, be used for obtaining frequency spectrum handover request message, described frequency spectrum handover request message comprises target spectrum, the unappropriated idle frequency spectrum of primary user that described target spectrum is this target spectrum, and the Time Guard Interval that obtains default described up-downgoing conversion;

First determines subelement, for the special subframe of described selection being defined as to the described time slot switching for frequency spectrum.

First deducts subelement, for the two ends of shared time period of up-downgoing GP change-over time that the described time slot switching for frequency spectrum is comprised, respectively deducts a described Time Guard Interval;

The second chooser unit, for select a time point within the remaining time, is defined as the described time point switching for frequency spectrum by the time point of described selection.

The first handover module 602, the definite described time point switching for frequency spectrum of the described time slot switching for frequency spectrum and described the second chooser unit for determining according to described first definite subelement, switches to target spectrum by the frequency spectrums of operation of current use.

Wherein, the first acquisition module 601 specifically comprises:

Second obtains subelement, be used for obtaining frequency spectrum handover request message, described frequency spectrum handover request message comprises target spectrum, described target spectrum is the unappropriated idle frequency spectrum of the primary user of this target spectrum, and obtain each user equipment (UE) in base station range to the propagation delay of base station, from the propagation delay of described each UE, select maximum propagation delay, the propagation delay of described maximum is defined as to the Time Guard Interval of described up-downgoing conversion;

First determines subelement, for the special subframe of described selection being defined as to the described time slot switching for frequency spectrum;

The second chooser unit, for select a time point within the remaining time, is defined as the described time point switching for frequency spectrum by the time point of described selection;

Wherein, the first acquisition module 601 specifically comprises:

The 3rd chooser unit, for selecting a time slot, described time slot is a data transmitting period;

First arranges subelement, and the data division sending for the time slot of described selection is set to sky;

Second determines subelement, for the time slot of described selection being defined as to the described time slot switching for frequency spectrum;

The first handover module 602, the definite described time point switching for frequency spectrum of the described time slot switching for frequency spectrum and described the second chooser unit for determining according to described second definite subelement, switches to target spectrum by the frequency spectrums of operation of current use.

Wherein, the first acquisition module 601 specifically comprises:

The 4th chooser unit, for selecting a time slot, described time slot is a data transmitting period;

Second arranges subelement, for the time slot configuration of described selection is become to send single frequency network multicast gap frame;

The 3rd determines subelement, for the time slot of described selection being defined as to the described time slot switching for frequency spectrum; Second deducts subelement, for the two ends of shared time period of data division that the described time slot switching for frequency spectrum is comprised, respectively deducts a described Time Guard Interval;

The 4th chooser unit, for select a time point within the remaining time, is defined as the described time point switching for frequency spectrum by the time point of described selection;

The first handover module 602, the definite described time point switching for frequency spectrum of the described time slot switching for frequency spectrum and described the 4th chooser unit for determining according to the described the 3rd definite subelement, switches to target spectrum by the frequency spectrums of operation of current use.

Wherein, the first acquisition module 601 specifically comprises:

The 3rd determines subelement, for the time slot of described selection being defined as to the described time slot switching for frequency spectrum;

Second deducts subelement, for the two ends of shared time period of data division that the described time slot switching for frequency spectrum is comprised, respectively deducts a described Time Guard Interval;

Further, described base station also comprises:

The first receiver module, the described frequency spectrum handover request message sending for receiving awareness apparatus, described frequency spectrum handover request message is carried target spectrum.

Further, described base station also comprises:

The first monitoring module, for the frequency spectrums of operation of described current use being monitored and monitoring state to other default one or more frequency spectrums, when monitoring out the primary user corresponding to frequency spectrums of operation of its current use and need to transmit data, produce described frequency spectrum handover request message, from described other default one or more frequency spectrums, obtain the target spectrum that state is idle condition, wherein, the described frequency spectrum handover request message that the first acquisition module 601 produces for obtaining described the first monitoring module.

Further, described base station also comprises: the second monitoring module, for obtaining the switching time of carrying out frequency spectrum switching from database, current time is monitored, when monitoring out described current time and be described switching time, produce described frequency spectrum handover request message, from described database, obtain the described target spectrum that described frequency spectrum handoff request message is drawn together;

Wherein, the described frequency spectrum handover request message that the first acquisition module 601 produces for obtaining described the second monitoring module.

In the implementation procedure of hardware, the first receiver module is in receiving circuit 303, and sending module is the part in transtation mission circuit 302, and monitoring module is in processing unit.

Referring to Figure 10, a kind of UE, comprising:

The second receiver module 701, the request message switching for receiving the frequency spectrum of base station transmission, described frequency spectrum request message carries the described time slot switching for frequency spectrum, described time point and the described target spectrum switching for frequency spectrum;

The second handover module 702, for according to the described time slot switching for frequency spectrum and the described time point switching for frequency spectrum, switches to described target spectrum by the frequency spectrums of operation of current use.

Concrete realizing in hardware realization, the second receiver module 701 is to utilize the hardware of receiving circuit 302 to realize, and the second handover module 702 is that hardware circuit or the processor in processing unit 306 realized.

Referring to Figure 11, a kind of awareness apparatus, comprising:

The first monitoring module 801, for monitoring the frequency spectrums of operation of the current use in base station;

The second acquisition module 802, in the time of need to transmitting data for monitoring out primary user corresponding to described frequency spectrums of operation, obtain target spectrum and generate frequency spectrum handover request, described frequency spectrum handover request message is carried described target spectrum, the unappropriated idle frequency spectrum of primary user that described target spectrum is this target spectrum;

The second sending module 803, for sending described frequency spectrum handover request message to described base station, makes described base station that frequency spectrums of operation is switched to described target spectrum.

Wherein, the first monitoring module 801 can be monitored in real time to the frequency spectrums of operation of the current use in base station.

Further, described awareness apparatus also comprises:

The second monitoring module, monitors in real time for the state of the one or more frequency spectrums to default, obtains the frequency spectrum that current state is idle condition.

Described the second acquisition module, specifically for selecting a frequency spectrum the frequency spectrum that is idle condition from described current state, is defined as target spectrum by the frequency spectrum of described selection.

A base station, comprises memory and at least one processor, for carrying out the method for following switching frequency spectrum:

Obtain the time slot switching for frequency spectrum;

Obtain and protect data uplink and descending change-over time interval;

Wherein, described in obtain the time slot switching for frequency spectrum, comprising:

In special subframe, select a special subframe;

Wherein, the time slot switching for frequency spectrum described in described basis and described Time Guard Interval obtain the time point switching for frequency spectrum, comprising:

Wherein, in described time slot after current time, obtain the time slot switching for frequency spectrum, comprising:

Select a time slot, described time slot is a data transmitting period;

The data division sending in the time slot of described selection is set to sky;

Select a time slot, described time slot is a data transmitting period;

Wherein, described in obtain data uplink and descending change-over time is protected interval, comprising:

Obtain the Time Guard Interval of default described up-downgoing conversion; Or,

Obtain each user equipment (UE) in base station range to the propagation delay of base station, from the propagation delay of described each UE, select maximum propagation delay, the propagation delay of described maximum is defined as to the Time Guard Interval of described up-downgoing conversion.

Further, described in obtain frequency spectrum handover request message before, also comprise:

The monitoring state of one or more frequency spectrums that the frequency spectrums of operation of described current use is monitored and other are preset, when monitoring out the primary user corresponding to frequency spectrums of operation of its current use and need to transmit data, produce described frequency spectrum handover request message, from described other default one or more frequency spectrums, obtain the target spectrum that state is idle condition; Or,

From database, obtain the switching time of carrying out frequency spectrum switching; current time is monitored; when monitoring out when described current time is described switching time, produce described frequency spectrum handover request message, from described database, obtain the target spectrum that described frequency spectrum handoff request message is drawn together; Or

From awareness apparatus, receive described frequency spectrum handover request message.

Further, described in obtain the time slot switching for frequency spectrum and the time point switching for frequency spectrum after, also comprise:

The embodiment of the present invention provides a kind of UE, comprises memory and at least one processor, for carrying out the method for following switching frequency spectrum:

The embodiment of the present invention provides a kind of awareness apparatus, comprises memory and at least one processor, and processor has the disposal ability of signal and information, for carrying out the method for following switching frequency spectrum:

Send described frequency spectrum handover request message to described base station, make described base station that frequency spectrums of operation is switched to described target spectrum.

Wherein monitor primary user corresponding to described frequency spectrums of operation and need to transmit data, determine that target spectrum comprises:

State to default one or more frequency spectrums is monitored in real time, obtains the frequency spectrum that current state is idle condition, selects a frequency spectrum from described current state the frequency spectrum that is idle condition, and the frequency spectrum of described selection is defined as to target spectrum.

One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can come the hardware that instruction is relevant to complete by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.

The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a method of switching frequency spectrum, is characterized in that, described method comprises:

Obtain the time slot switching for frequency spectrum;

Obtain and protect data uplink and descending change-over time interval;

2. the method for claim 1, is characterized in that, described in obtain the time slot switching for frequency spectrum, comprising:

In special subframe, select a special subframe;

3. method as claimed in claim 2, is characterized in that, the time slot switching for frequency spectrum described in described basis and described Time Guard Interval obtain the time point switching for frequency spectrum, comprising:

The two ends of the time period that up and descending GP change-over time that the described time slot switching for frequency spectrum is comprised is shared respectively deduct a described Time Guard Interval;

4. the method for claim 1, is characterized in that, described in obtain the time slot switching for frequency spectrum, comprising:

Select a time slot, described time slot is a data transmitting period;

5. the method for claim 1, is characterized in that, described in obtain the time slot switching for frequency spectrum, comprising:

Select a time slot, described time slot is a data transmitting period;

6. the method as described in claim 4 or 5, is characterized in that, the time slot switching for frequency spectrum described in described basis and described Time Guard Interval obtain the time point switching for frequency spectrum, comprising:

7. the method as described in claim 1-6 any one claim, is characterized in that, described in obtain data uplink and descending change-over time is protected interval, comprising:

8. the method as described in claim 1 to 7 any one claim, is characterized in that, described in obtain frequency spectrum handover request message before, also comprise:

9. the method as described in claim 1 to 8 any one claim, is characterized in that, the time slot switching for frequency spectrum described in described basis and described Time Guard Interval also comprise after being identified for time point that frequency spectrum switches:

Send described frequency spectrum handover request message to UE, described frequency spectrum handover request message also comprises the described time slot switching for frequency spectrum and the described time point switching for frequency spectrum, to ask described UE to carry out frequency spectrum switching.

10. the method that frequency spectrum switches, is characterized in that, described method comprises:

Receive the request message of the frequency spectrum switching of base station transmission, described frequency spectrum request message comprises the described time slot switching for frequency spectrum, described time point and the described target spectrum switching for frequency spectrum;

11. 1 kinds of methods of switching frequency spectrum, is characterized in that, described method comprises:

If monitoring primary user corresponding to described frequency spectrums of operation need to transmit data and determine target spectrum, and generate frequency spectrum handover request, described frequency spectrum handover request message is carried described target spectrum, the unappropriated idle frequency spectrum of primary user that described target spectrum is this target spectrum;

12. methods as claimed in claim 11, is characterized in that, wherein monitor primary user corresponding to described frequency spectrums of operation and need to transmit data and determine that target spectrum comprises:

State to default one or more frequency spectrums is monitored in real time, obtains the frequency spectrum that current state is idle condition, selects a frequency spectrum from described current state the frequency spectrum that is idle condition, and the frequency spectrum of described selection is defined as to described target spectrum.

13. 1 kinds of base stations, is characterized in that, described base station comprises:

The first acquisition module, for obtaining frequency spectrum handover request message, described frequency spectrum handover request message comprises target spectrum, described target spectrum is the unappropriated idle frequency spectrum of the primary user of this target spectrum, then obtain the time slot switching for frequency spectrum, obtain again the Time Guard Interval of up-downgoing conversion, according to the described time slot switching for frequency spectrum and described Time Guard Interval, be identified for the time point that frequency spectrum switches;

The first handover module, for according to the described time slot switching for frequency spectrum and the described time point switching for frequency spectrum, switches to target spectrum by the frequency spectrums of operation of current use.

14. base stations as claimed in claim 13, is characterized in that, described the first acquisition module specifically comprises:

The second chooser unit, for selecting a time point in the time remaining after described first deducts subelement to deduct described Time Guard Interval, is defined as the described time point switching for frequency spectrum by the time point of described selection;

Described the first handover module, the definite described time point switching for frequency spectrum of the described time slot switching for frequency spectrum and described the second chooser unit for determining according to described first definite subelement, switches to target spectrum by the frequency spectrums of operation of current use.

15. base stations as claimed in claim 13, is characterized in that, described the first acquisition module specifically comprises:

16. base stations as claimed in claim 13, is characterized in that, described the first acquisition module specifically comprises:

Described the first handover module, the definite described time point switching for frequency spectrum of the described time slot switching for frequency spectrum and described the second chooser unit for determining according to described second definite subelement, switches to target spectrum by the frequency spectrums of operation of current use.

17. base stations as claimed in claim 13, is characterized in that, described the first acquisition module specifically comprises:

18. base stations as claimed in claim 13, is characterized in that, described the first acquisition module specifically comprises:

The 4th chooser unit, for selecting a time point in the time remaining after described second deducts subelement to deduct described Time Guard Interval, is defined as the described time point switching for frequency spectrum by the time point of described selection;

Described the first handover module, the definite described time point switching for frequency spectrum of the described time slot switching for frequency spectrum and described the 4th chooser unit for determining according to the described the 3rd definite subelement, switches to target spectrum by the frequency spectrums of operation of current use.

19. base stations as claimed in claim 13, is characterized in that, described the first acquisition module specifically comprises:

20. base stations as described in claim 13 to 19 any one claim, is characterized in that, described base station also comprises:

21. base stations as described in claim 13 to 19 any one claim, is characterized in that, described base station also comprises:

The first monitoring module; for the frequency spectrums of operation of described current use being monitored and monitoring state to other default one or more frequency spectrums; when monitoring out the primary user corresponding to frequency spectrums of operation of its current use and need to transmit data; produce described frequency spectrum handover request message, from described other default one or more frequency spectrums, obtain the target spectrum that state is idle condition; The described frequency spectrum handover request message that described the first acquisition module produces for obtaining described the first monitoring module.

22. base stations as described in claim 13 to 19 any one claim, is characterized in that, described base station also comprises:

The second monitoring module, for obtaining the switching time of carrying out frequency spectrum switching from database, current time is monitored, when monitoring out described current time and be described switching time, produce described frequency spectrum handover request message, from described database, obtain the described target spectrum that described frequency spectrum handoff request message is drawn together;

The described frequency spectrum handover request message that described the first acquisition module produces for obtaining described the second monitoring module.

23. 1 kinds of user equipment (UE)s, is characterized in that, described UE comprises:

The second receiver module, the request message switching for receiving the frequency spectrum of base station transmission, described frequency spectrum request message comprises the described time slot switching for frequency spectrum, described time point and the described target spectrum switching for frequency spectrum;

24. 1 kinds of awareness apparatus, is characterized in that, described awareness apparatus comprises:

The second acquisition module, in the time of need to transmitting data for monitoring out primary user corresponding to described frequency spectrums of operation, obtain target spectrum and generate frequency spectrum handover request, described frequency spectrum handover request message is carried described target spectrum, the unappropriated idle frequency spectrum of primary user that described target spectrum is this target spectrum;

The second sending module, for sending described frequency spectrum handover request message to described base station, so that described base station switches to described target spectrum by frequency spectrums of operation.