CN103813345B

CN103813345B - Uplink frequency spectrum resource sharing method, terminal and its system

Info

Publication number: CN103813345B
Application number: CN201210436148.0A
Authority: CN
Inventors: 冯淑兰; 刘劲楠; 周晗
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-11-05
Filing date: 2012-11-05
Publication date: 2017-08-04
Anticipated expiration: 2032-11-05
Also published as: CN103813345A

Abstract

This application discloses uplink frequency spectrum resource sharing method, equipment and system.Methods described comprises the following steps：At least one subband will be partly or entirely divided into the mandate frequency spectrum of authorized user, each subband it is equal in magnitude；Before dispatching cycle, the data of local terminal are modulated into packet, the size of each packet carries data volume no more than minimum shared cell；The frequency spectrum detection time in dispatching cycle, detect that can be supplied to second user with the presence or absence of at least one in the mandate frequency spectrum of authorized user sends the idle subband that terminal is used, and each idle subband is more than or equal to the frequency resource shared by a minimum shared cell；If there is at least one idle subband, then determine the mapping relations of idle subband and packet, and the frequency spectrum share time in dispatching cycle, packet is mapped to corresponding idle subband according to identified mapping relations, to send packet to opposite end by idle subband.

Description

Uplink frequency spectrum resource sharing method, terminal and its system

Technical field

The application is related to wireless communication field, more particularly to a kind of uplink frequency spectrum resource sharing method, terminal and its is System.

Background technology

In recent years, wireless communication technology obtains huge development, however, swashing with using the number of cordless communication network Increase, and the requirement to performance of wireless telecommunications networks is increasingly improved, frequency spectrum resource day is becoming tight.

Prior art provides a kind of radio-frequency spectrum that authorized user's frequency spectrum is shared in the way of not disturbing authorized user Sharing method, methods described uses the idle frequency of authorized user by detecting the idle frequency spectrum of authorized user's such as TV signal Compose for wireless broadband Internet access.The communication that this frequency spectrum that authorized user is shared in the way of not disturbing authorized user is carried out is set Standby referred to as second user.Due to television signal transmission power invariability, and (several hours) frequency spectrum generally in longer time It is constant, therefore, idle frequency spectrum can be provided in a long time so that second user communicates.

However, present inventor has found in long-term R ＆ D, if to share the idle frequency spectrum of the cellular communication of mandate, Then there is larger difficulty.The downstream spectrum utilization rate of one side cellular communication is higher, the idle frequency spectrum in cellular downlink frequency spectrum It is less, therefore be not suitable for second user communication.Cellular communication uplink spectrum utilization rate is general low compared with downstream spectrum utilization rate, and Interference can be preferably controlled, therefore, second user communication can use cellular uplink frequency spectrum to be communicated.But because honeycomb is used The dispatching cycle at family is very short, such as in third generation partner program Long Term Evolution (3GPP LTE, 3rd Generation Partnership Project Long Term Evolution) in standard, the cycle of uplink scheduling is 1ms, and a honeycomb The service terminal of base station subordinate has hundreds of, tens terminals is dispatched per 1ms, the idle frequency spectrum that preceding 1ms is detected is next 1ms there is a high likelihood that occupied, so, sharing the idle frequency spectrum of cellular communication needs to complete the detection of data in 1ms And transmission.In the prior art, the transmission of data needs to determine the Radio Resource of transmission data first, then further according to transmission number According to Radio Resource size and data modulation coding mode, it is determined that the data package size transmitted every time, and phase is obtained from high level After the packet for answering size, packet is encoded and modulated, then re-mapped identified radio resource transfer and go out, The time that this process needs is generally higher than in 1ms, such as 3GPP LTE, be the data processing reserved time be 2ms~3ms, Therefore, in the conventional mode, the detection of resource should be completed within the 1ms times, the testing result according to resource is completed again The processing and transmission of packet are carried out, is infeasible.Therefore, according to prior art, cellular communication is shared with very short time The frequency spectrum of (1ms) change, is infeasible.

The content of the invention

The application mainly solving the technical problems that provide a kind of uplink frequency spectrum resource sharing method, terminal and its system, The uplink frequency spectrum resource of the authorized user changed with very short time can be shared by enabling to second user to send terminal.

In order to solve the above technical problems, on the one hand the application provides a kind of uplink frequency spectrum resource sharing method, including it is as follows Step：At least one subband will be partly or entirely divided into the mandate frequency spectrum of authorized user, each subband it is equal in magnitude； Before dispatching cycle, the data of local terminal are modulated into packet, what the size of each packet was no more than minimum shared cell can Data volume is carried, wherein, the minimum time unit that dispatching cycle transmits for packet of progress；Frequency spectrum in dispatching cycle Detection time, detects that can be supplied to second user with the presence or absence of at least one in the mandate frequency spectrum of authorized user sends what terminal was used Idle subband, wherein, the idle subband is the subband that authorization user signal is less than threshold value, and each idle subband be more than or Person is equal to the frequency resource shared by a minimum shared cell；If there is at least one idle subband, it is determined that the sky The mapping relations of not busy subband and the packet, and the frequency spectrum share time in the dispatching cycle, the packet is pressed Corresponding idle subband is mapped to according to identified mapping relations, to send the data to opposite end by the idle subband Bag.

Wherein, it is described the step of the data of local terminal are modulated into packet before include：Calculate the minimum shared cell Carry data volume, wherein, the available resources number for carrying data volume=minimum shared cell of the minimum shared cell × order of modulation ÷ code rates.

Wherein, it is described calculate minimum shared cell the step of carrying data volume before comprise the following steps：Obtain institute State the symbolic number that the frequency spectrum share time included；Obtain the sub-carrier number that the subband is included；Calculate described minimum shared single The available resources number that member is included, the available resources number that the minimum shared cell is included is equal to the minimum shared cell institute Comprising number of resources subtract number of resources for transmission of reference signals, if the minimum shared cell is that first kind minimum is shared single Member, the then number of resources that the minimum shared cell of the first kind is included is equal to sub-carrier number and the frequency that the subband is included The product for the symbolic number that the spectrum shared time is included；If the minimum shared cell is the minimum shared cell of Equations of The Second Kind, described The number of resources that Equations of The Second Kind minimum shared cell is included is equal to sub-carrier number and the transmission control information that the subband is included The product for the symbolic number that the difference of sub-carrier number is included with the frequency spectrum share time.

Wherein, second user is can be supplied to the presence or absence of at least one in the mandate frequency spectrum of the detection authorized user to send eventually The step of holding the idle subband used includes：The frequency spectrum detection time in the dispatching cycle is to each of the authorized user The occupancy situation of subband is detected, free time that the second user transmission terminal is used is can be supplied to determine whether there is Band；It is all occupied if all of the subband, then free time that terminal is used is sent in the absence of can be supplied to the second user Band；If subband does not have occupied, then it is available for sending the idle subband that terminal is used to the second user.

Wherein, occupancy of the frequency spectrum detection time in the dispatching cycle to each subband of the authorized user Situation, which carries out detecting step, to be included：Frequency spectrum detection time in the dispatching cycle is to each subband of the authorized user Signal energy is detected, to determine whether the subband is occupied；If the signal energy of the subband is more than or equal to threshold Value, then the subband is occupied；If the signal energy of the subband is less than threshold value, the subband is not occupied.

Wherein, the mapping relations for determining idle subband and packet include：The one of idle subband conduct of selection The idle subband of control information is transmitted, and remaining idle subband is used as to the idle subband for transmission packet；Determine data The mapping relations of bag and the idle subband for transmission packet.

Wherein, the mapping relations for determining packet and the idle subband for transmission packet include：Judge to be used for Whether the quantity for transmitting the idle subband of user data package is less than the quantity of the user data package；If for transmitting number of users It is less than the quantity of the user data package according to the idle number of sub-bands of bag, then selects to be less than or equal to from all customer data bag For the user data package for the idle number of sub-bands for transmitting user data package, each packet, which is mapped to one, to be used to transmit number According to the idle subband of bag；If being more than or equal to the number of user data package for transmitting the idle number of sub-bands of user data package Amount, then selection is equal to the idle subband for data packet number from all idle subbands for transmission packet, each Packet is mapped to the idle subband selected by one.

Wherein, it is described to determine packet with including such as after the mapping relations step for the idle subband of transmission packet Lower step：According to the mapping relations of packet and the idle subband for transmission packet, control information is generated, wherein, it is described Control information is used to indicate which subband is used for transmission packet.

Wherein, comprise the following steps after the generation control information step：By the control information according to predefined Form, which is modulated, is encoded to control information physical layer data bag, and in the frequency spectrum share time of the dispatching cycle, is mapped to Subband for transmitting control information, to be sent to the opposite end.

Wherein, the frequency spectrum share time in dispatching cycle, by the packet according to identified mapping relations Corresponding idle subband is mapped to, to include the step of sending the packet to opposite end by the idle subband：With son In the case of frame in frequency-hopping mode communication, according to institute in the first time slot of the frequency spectrum share time in a dispatching cycle The control information and packet are mapped to corresponding idle subband and sent to the opposite end by the mapping relations of determination, the The packet is mapped to the corresponding sky after the frequency hopping corresponding to idle subband determined by first time slot by two time slots Not busy subband is simultaneously sent to the opposite end.

In order to solve the above technical problems, on the one hand the application provides another uplink frequency spectrum resource sharing method, including such as Lower step：Receive second user and send terminal in the frequency spectrum share time, utilize the data authorized transmitted by the idle subband of frequency spectrum Bag, wherein, the packet includes control information packet and user data package.

Wherein, the reception second user sends terminal in the frequency spectrum share time, utilizes the idle subband institute for authorizing frequency spectrum The packet step of transmission comprises the following steps：Scanned for successively in the subband in the mandate frequency spectrum of the authorized user, To obtain the idle subband for being used for transmitting control information packet；To the idle subband for being used to transmit control information packet Interior control information packet is demodulated decoding, to obtain control information；Transmission number of users is obtained according to the control information The user data package is obtained according to the subband of bag, and from the subband of the transmission user data package.

Wherein, the control information in idle subband is demodulated decoding, to obtain bag before control information step Include following steps：According to the size and reference signal transmission rule of the idle subband of predefined transmission control information, local ginseng Examining signal, reference signal position progress corresponding to the subband received is related；Judge whether the peak value of correlation is more than threshold value, such as The related peak value of fruit is more than threshold value, then decoding is demodulated to the packet in the subband, to obtain the number in the subband According to；Judge whether the data in the subband are effective, if the data validation in the subband is effectively, by the subband Data are used as control information.

In order to solve the above technical problems, on the other hand the application, which provides a kind of second user, sends terminal, including：Divide mould Block, data processing module, detection module, mapping relations determining module and sending module, the division module are used to authorize At least one subband, equal in magnitude, the division mould of each subband are partly or entirely divided into the mandate frequency spectrum of user Block sends division result to detection module；The data processing module is used to receive the division result, before dispatching cycle, The data of local terminal are modulated into packet, the size of each packet carries data volume no more than minimum shared cell, its In, dispatching cycle to carry out the minimum time unit of packet transmission, the data processing module by the packet to Sending module is sent；The detection module is used for the frequency spectrum detection time in dispatching cycle, detects the mandate frequency of authorized user Second user is can be supplied to the presence or absence of at least one send the idle subband that terminal is used in spectrum, wherein, the idle subband is Authorization user signal is less than the subband of threshold value, and each idle subband is more than or equal to shared by a minimum shared cell Frequency resource, the detection module sends testing result to the mapping relations determining module；The mapping relations are determined Module is used for when there is at least one idle subband, determines the mapping relations of the idle subband and the packet, and will The mapping relations are sent to the sending module；The sending module is used to receive the packet and the mapping is closed System, and in the frequency spectrum share time of the dispatching cycle, the packet is mapped to correspondence according to identified mapping relations Idle subband, to send the packet to opposite end by the idle subband.

Wherein, the terminal includes computing module, and the computing module is used to calculate holding for the minimum shared cell Data volume is carried, wherein, the available resources number × modulation for carrying data volume=minimum shared cell of the minimum shared cell Exponent number ÷ code rates.

Wherein, the computing module includes：Symbol acquiring unit, subcarrier acquiring unit and computing unit；The symbol Number acquiring unit is used to obtaining the symbolic number included the frequency spectrum share time, and the frequency spectrum is total to by the symbol acquiring unit The symbolic number that the time of enjoying is included is sent to the computing unit；The subcarrier acquiring unit is wrapped for obtaining the subband The sub-carrier number contained；The computing unit is used to receive symbolic number and the subband institute that the frequency spectrum share time is included Comprising sub-carrier number, and calculate the available resources number that the minimum shared cell is included, the minimum shared cell is wrapped The available resources number contained subtracts the number of resources for transmission of reference signals equal to the number of resources that the minimum shared cell is included, If the minimum shared cell is the minimum shared cell of the first kind, the number of resources that the minimum shared cell of the first kind is included The product of the symbolic number included equal to the sub-carrier number that the subband is included with the frequency spectrum share time；If the minimum Shared cell is the minimum shared cell of Equations of The Second Kind, then the number of resources that the minimum shared cell of the Equations of The Second Kind is included is equal to the son The sub-carrier number that band is included and the symbol that the difference of the sub-carrier number of transmission control information is included with the frequency spectrum share time Several products.

Wherein, the detection module is additionally operable to frequency spectrum detection time in the dispatching cycle to the authorized user's The occupancy situation of each subband is detected, the free time that the second user transmission terminal is used is can be supplied to determine whether there is Subband；And when all subbands are all occupied, it is determined that sending what terminal was used in the absence of can be supplied to the second user Idle subband；And when there is subband there is no occupied, it is determined that being available for sending the sky that terminal is used to the second user Not busy subband.

Wherein, the detection module is additionally operable to frequency spectrum detection time in the dispatching cycle to the authorized user's The signal energy of each subband is detected, to determine whether the subband is occupied；And it is big in the signal energy of the subband In or equal to threshold value, determine that the subband is occupied；And when the signal energy of the subband is less than threshold value, determine the son Band is not occupied.

Wherein, the mapping relations determining module is additionally operable to select one of idle subband as transmission control information Idle subband, and using remaining idle subband as the idle subband for transmission packet, and determine that packet is passed with being used for The mapping relations of the idle subband of transmission of data bag.

Wherein, the mapping relations determining module includes：Judging unit and mapping relations determining unit；It is described to judge single Member is used for the quantity for judging whether the quantity for being used to transmit the idle subband of user data package is less than the user data package, described Judging unit will determine that result is sent to the mapping relations determining unit；

The mapping relations determining unit is used to receive the judged result, and in the free time for transmitting user data package When number of sub-bands is less than the quantity of the user data package, selection is less than or equal to be used to transmit user from all customer data bag The user data package of the idle number of sub-bands of packet, each packet, which is mapped to one, is used for free time of transmission packet Band；And, when being more than or equal to the quantity of user data package for transmitting the idle number of sub-bands of user data package, from institute There is selection in the idle subband for transmission packet to be equal to the idle subband for data packet number, the mapping of each packet To the idle subband selected by one.

Wherein, the mapping relations determining module is additionally operable to according to packet and the idle subband for transmission packet Mapping relations, generate control information, wherein, the control information is used to indicate which subband is used for transmission packet.

Wherein, the mapping relations determining module is additionally operable to the control information being modulated according to predefined form Control information physical layer data bag is encoded to, and in the frequency spectrum share time of the dispatching cycle, is mapped to for transmitting control The subband of information, to be sent to the opposite end.

Wherein, the sending module includes frequency hopping unit, and the frequency hopping unit is used for the frequency-hopping mode communication in subframe In the case of, will according to identified mapping relations in the first time slot of the frequency spectrum share time in a dispatching cycle The control information and packet are mapped to corresponding idle subband and sent to the opposite end, in the second time slot by the data Bag is mapped to determined by first time slot corresponding idle subband after the frequency hopping corresponding to idle subband and to described right End is sent.

In order to solve the above technical problems, the application another further aspect provides a kind of second user receiving terminal, including：Receive mould Block, sends terminal in the frequency spectrum share time for receiving second user, utilizes the data authorized transmitted by the idle subband of frequency spectrum Bag, wherein, the packet includes control information packet and user data package.

Wherein, the receiving module includes：Control information receiving module and user data receiving module；The control information Receiving module, which is used to receiving second user, sends terminal in the frequency spectrum share time, using authorizing transmitted by the idle subband of frequency spectrum Control information packet；The user data receiving module is used to receive second user transmission terminal in frequency spectrum share time, profit With the user data package authorized transmitted by the idle subband of frequency spectrum.

Wherein, the control information receiving module includes：Search unit and control information demodulating and decoding unit, the use User data receiving module includes：Control information acquiring unit and user data demodulating and decoding unit；The search unit be used for according to Scanned in the secondary subband in the mandate frequency spectrum of the authorized user, be used for free time for transmitting control information to obtain Band, the search unit sends the search result to the control information demodulating and decoding unit；The control information demodulation Decoding unit is used to receive the search result, and is used to transmit the control information number in the idle subband of control information to described Decoding is demodulated according to bag, to obtain control information, the subband for transmitting user data package is obtained according to the control information, and will The sub-band information of the transmission user data package is sent to the user data receiving module；The control information acquiring unit is used In the sub-band information for receiving the transmission user data package transmitted by control information receiving module, and issue user data demodulating and decoding Unit；According to the sub-band information of transmission user data package, demodulating and decoding is each transmitted the user data demodulating and decoding unit successively User data of the user data package to obtain in the subband of user data package.

Wherein, the control information demodulating and decoding unit includes：Correlation unit, the first judging unit and the second judgement are single Member；The correlation unit is used to be advised according to the size and reference signal transmission of the idle subband of predefined transmission control information Then, local reference signal reference signal position progress corresponding to the subband received is related, the correlation unit is by correlation Peak value sent to first judging unit；First judging unit receives the related peak value, and judges correlation Whether peak value is more than threshold value, and when related peak value is more than threshold value, decoding is demodulated to the data in the subband, to obtain The data in the subband are obtained, first judging unit sends the data in the subband to second judging unit； Second judging unit receives the data in the subband, judges whether the data in the subband are effective, and in the son When data validation in band is effective, the data in the subband are regard as control information.

In order to solve the above technical problems, the another aspect of the application provides a kind of spectra sharing system, including at least one the Two users send terminal and at least one second user receiving terminal, wherein, the second user transmission terminal, which can be shared, awards The mandate frequency spectrum of user is weighed to be communicated with the second user receiving terminal, it is above-mentioned second that the second user, which sends terminal, User sends terminal.

Wherein, the second user receiving terminal is above-mentioned second user receiving terminal.

Such scheme is modulated into size by the data that second user is sent into terminal in advance and is no more than minimum shared cell The packet for carrying data volume, then the frequency spectrum detection time detecting in dispatching cycle go out within the dispatching cycle authorize use Idle subband in family, and packet is mapped to authorized user in dispatching cycle in the frequency spectrum share time of the dispatching cycle The frequency spectrum share time idle subband in transfer out, enable to second user send terminal can share authorized user's Uplink frequency spectrum resource, effectively improves the utilization rate of frequency spectrum.It is appreciated that by advance can according to minimum shared cell by packet Carrying data volume is modulated and encoded, and saves and carries out data segmentation modulating-coding etc. again after the frequency spectrum share time is detected Data processing time, so as to directly be mapped after idle subband is detected packet, without waiting for tediously long Data processing time, it is thereby achieved that completing the process of frequency spectrum detection and frequency spectrum share, energy within a shorter dispatching cycle Enough second user transmission terminal to realize to detect and use using fast-changing authorize of frequency spectrum within a dispatching cycle The uplink frequency spectrum resource at family, effectively improves the utilization rate of frequency spectrum.On the other hand, packet of the present invention is according to minimum shared cell Data volume can be carried to be modulated and encode, and it is big that minimum shared cell is set into no more than one idle subband on frequency domain It is small so that ready packet can adapt to the idle subband detected in advance, be not in that packet is more than idle subband And the data caused are the problem of can not transmit.

Brief description of the drawings

Fig. 1 is the flow chart of the embodiment of the application uplink frequency spectrum resource sharing method one；

Fig. 2 is the flow chart of another embodiment of the application uplink frequency spectrum resource sharing method；

Fig. 3 is the signal of authorized user dispatching cycle in another embodiment of the application uplink frequency spectrum resource sharing method Figure；

Fig. 4 is the subband of the mandate frequency spectrum of dispatching cycle in another embodiment of the application uplink frequency spectrum resource sharing method The schematic diagram of division；

Fig. 5 is the structural representation of resource block in another embodiment of the application uplink frequency spectrum resource sharing method；

Fig. 6 is transmission of reference signals in dispatching cycle in another embodiment of the application uplink frequency spectrum resource sharing method Schematic diagram；

Fig. 7 is that the distribution of reference signal in resource block in another embodiment of the application uplink frequency spectrum resource sharing method is shown It is intended to；

Fig. 8 is the schematic diagram of FFT times in another embodiment of the application uplink frequency spectrum resource sharing method；

Fig. 9 is that packet is mapped to after mandate frequency spectrum in another embodiment of the application uplink frequency spectrum resource sharing method, Authorize the structural representation of frequency spectrum；

Figure 10 is a kind of bearing method of reference signal in another embodiment of the application uplink frequency spectrum resource sharing method Schematic diagram；

Figure 11 is another bearing method of reference signal in another embodiment of the application uplink frequency spectrum resource sharing method Schematic diagram；

Figure 12 is another bearing method of reference signal in another embodiment of the application uplink frequency spectrum resource sharing method Schematic diagram；

Figure 13 is that packet is mapped into sky in OFDM in another embodiment of the application uplink frequency spectrum resource sharing method The schematic diagram of not busy subband；

Figure 14 is that packet is mapped to sky by SC-FDMA in another embodiment of the application uplink frequency spectrum resource sharing method The schematic diagram of not busy subband；

Packet is mapped to mandate when Figure 15 is frequency hopping in another embodiment of the application uplink frequency spectrum resource sharing method After frequency spectrum, the schematic diagram of frequency spectrum is authorized；

Figure 16 is the flow chart of the application uplink frequency spectrum resource sharing method a further embodiment；

Figure 17 is the structural representation that the application second user sends the embodiment of terminal one；

Figure 18 is the structural representation that the application second user sends another embodiment of terminal；

Figure 19 is the structural representation of the embodiment of the application second user receiving terminal one；

Figure 20 is the structural representation that the application second user sends terminal a further embodiment；

Figure 21 is the structural representation of another embodiment of the application second user receiving terminal.

Embodiment

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can To realize by another way.Such as, device embodiments described above be only it is schematical, such as, and the mould The division of block or unit, only a kind of division of logic function can have other dividing mode when actually realizing, such as multiple Unit or component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another Point, shown or discussed coupling or direct-coupling or communication connection each other can be by some interfaces, device or The INDIRECT COUPLING of unit or communication connection, can be electrical, machinery or other forms.

Illustrated below in conjunction with the accompanying drawings with specific embodiment.Wherein, the second user in text sends terminal and refered in particular to Share the user terminal of authorized user frequency spectrum resource in authorized user's mode, it for authorized user is the first user that second user, which is, For.Correspondingly, second user receiving terminal sends the user terminal of the packet transmitted by terminal for reception second user.

Refering to Fig. 1, Fig. 1 is the flow chart of the embodiment of the application uplink frequency spectrum resource sharing method one.Uplink spectrum is provided Source sharing method includes：

S101：Second user, which sends terminal, to be partly or entirely divided at least one in the mandate frequency spectrum of authorized user Subband, each subband it is equal in magnitude.

S102：Terminal is sent before dispatching cycle in second user, and the data of local terminal are modulated into packet, each data The size of bag carries data volume no more than minimum shared cell.

Before dispatching cycle, second user sends terminal in advance by MAC (Media Access Control) layer of local terminal No more than one minimum shared cell of size is split or be cascaded as to data can carry the packet of data volume, and by this packet Encoded and modulated according to predetermined coded system and modulation, the size of each packet after encoding and modulating does not surpass That crosses minimum shared cell carries data volume.Minimum shared cell refers to that in a dispatching cycle number can be carried Running time-frequency resource is shared according to the minimum of bag, dispatching cycle is the minimum time unit that authorized user carries out a packet transmission.One The maximum number bits for carrying data volume to carry in one minimum shared cell of individual minimum shared cell.One minimum is total to Enjoy the size of the frequency resource shared by no more than one subband of frequency resource size shared by unit.

S103：Second user sends frequency spectrum detection time of the terminal in dispatching cycle, detects the mandate frequency of authorized user Second user is can be supplied to the presence or absence of at least one send the idle subband that terminal is used in spectrum.

Generally, the frequency spectrum detection time is a period of time originated in a dispatching cycle, and second user transmission terminal is in tune In the frequency spectrum detection time spent in the cycle, the mandate frequency spectrum for detecting authorized user second user is can be supplied to the presence or absence of at least one The idle subband that terminal is used is sent, wherein, idle subband detects authorization user signal for second user transmission terminal and is less than It is shared single that the subband of threshold value, the available free subband size all same of institute, and each idle subband are more than or equal to a minimum Frequency resource shared by member.The idle subband that terminal is used is sent if there is can be supplied to second user, into S104.

S104：Second user sends the mapping relations that terminal determines idle subband and packet.

Second user sends terminal and determines which idle subband is used for which packet to be transmitted.One idle subband transmission one Individual packet.

S105：Second user sends frequency spectrum share time of the terminal in dispatching cycle, by packet according to identified Mapping relations are mapped to corresponding idle subband, to send packet to opposite end by idle subband.

Second user sends frequency spectrum share time of the terminal within a dispatching cycle, by the packet mapping scheduler cycle The frequency spectrum share time idle subband and sent to opposite end, wherein, generally within a dispatching cycle, after the frequency spectrum detection time There is one piece of data processing time, for handling frequency spectrum detecting result, determine mapping relations and generation control information letter Order etc., followed by frequency spectrum share time, when the frequency spectrum share time is one section after data processing time in same dispatching cycle Between, for transmitting packet.Specifically, second user sends the free time that a packet is mapped to authorized user by terminal Subband.

Such scheme is sent eventually by the way that authorized user's frequency spectrum is divided into equal-sized subband in advance in second user Before the shared authorized user's spectrum transmissions data in end, packet to be sent is modulated into size and is no more than minimum shared cell The packet of data volume can be carried, then the frequency spectrum detection time detecting in dispatching cycle goes out the authorized user within the dispatching cycle In idle subband, and packet is mapped to authorized user in dispatching cycle in the frequency spectrum share time of the dispatching cycle Transferred out in the idle subband of frequency spectrum share time, the upper of authorized user can be shared by enabling to second user to send terminal Line frequency spectrum resource, effectively improves the utilization rate of frequency spectrum.It is appreciated that by the way that packet can be held according to minimum shared cell in advance Carry data volume to be modulated and encode, save and carry out data segmentation modulating-coding etc. again after the frequency spectrum share time is detected Data processing time, so as to directly be mapped after idle subband is detected packet, without waiting for tediously long number According to processing time, it is thereby achieved that the process of frequency spectrum detection and frequency spectrum share is completed within a shorter dispatching cycle, can Second user transmission terminal is realized to detect within a dispatching cycle and use the fast-changing authorized user of frequency spectrum Uplink frequency spectrum resource, effectively improve the utilization rate of frequency spectrum.On the other hand, packet of the present invention be can according to minimum shared cell Carrying data volume is modulated and encoded, and it is big that minimum shared cell is set into no more than one idle subband on frequency domain It is small so that ready packet can adapt to the idle subband detected in advance, be not in that packet is more than idle subband And the data caused are the problem of can not transmit.

Refering to Fig. 2, Fig. 2 is the flow chart of another embodiment of the application uplink frequency spectrum resource sharing method.Uplink spectrum Resource share method includes：

S201：Second user sends the symbolic number that terminal obtains the frequency spectrum share time and included.

The dispatching cycle of authorized user is what authorized user's system was previously set, when carrying out the minimum of a packet transmission Between the transmission of the complete data packet of unit, i.e., one minimum time.Such as, in 3GPP LTE systems and worldwide interoperability for microwave accesses In (WiMAX, Worldwide Interoperability for Microwave Access) system, dispatching cycle is 1 son Frame, the subframe lengths of 3GPP LTE mono- are 1 millisecond, and 3GPP LTE dispatching cycle is 1 millisecond.Second user send terminal it is determined that After the mandate frequency spectrum of shared 3GPP LTE systems, the dispatching cycle for obtaining authorized user is set according to 3GPP LTE protocols.And it is complete Ball microwave interconnecting accesses the son of (WiMAX, Worldwide Interoperability for Microwave Access) system Frame length can be 2 milliseconds, 2.5 milliseconds, 4 milliseconds, 5 milliseconds, 8 milliseconds, 10 milliseconds, 12.5 milliseconds, 20 milliseconds etc..WiMAX The subframe lengths of system are broadcasted by the base station in WiMAX system by downlink signaling, second user send terminal it is determined that After the mandate frequency spectrum of shared WiMAX system, the subframe that authorized user is obtained from the downlink signaling of the base station in WiMAX system is long Degree, so as to obtain the dispatching cycle of WiMAX system.

Second user sends terminal and the time of one dispatching cycle is divided into frequency spectrum detection time, data processing time, frequency Spectrum shared time and other time.Wherein, the frequency spectrum detection time accounts for for the subband that second user sends terminal-pair authorized user The period detected with situation.Data processing time mainly includes frequency spectrum detecting result and handled, and generation control information With packet mapping relations etc..The frequency spectrum share time shares authorized user's resource to be available for second user to send terminal, to transmit The time of packet.Other time second user send terminal determine without using time, for example detect (Sounding) signal Time, the detectable signal time is used for authorized user's terminal and sends detectable signal.

As shown in figure 3, in 3GPP LTE systems, the dispatching cycle of authorized user is 1 millisecond, when using before ordinary cycle When sewing (CP, Cyclic Prefix), include symbol #0~#13 totally 14 symbols each dispatching cycle.Wherein, each symbol pair Should a period of time.Second user sends terminal and determines the time corresponding to symbol #0 for the frequency spectrum detection time, corresponding to symbol #1 Time be data processing time, and the time corresponding to symbol #13, to be authorized user be used to send time of detectable signal, symbol The frequency spectrum that number #13 corresponding time takes is different with the frequency spectrum of the time occupancy corresponding to symbol #0~symbol #12, thus second User sends terminal and determines the times of symbol #2~#12 corresponding to totally 11 symbols as being available for the in LTE dispatching cycles Two users send the frequency spectrum share time that terminal is used.Or, if the time shared by the frequency spectrum detection time is shorter, second User sends the time and frequency spectrum detection time that terminal determines that time corresponding to symbol #0 is data processing, and symbol #1~# 12 time corresponding to totally 12 symbols as being available for second user to send frequency spectrum share time for using of terminal in dispatching cycle, That is, the symbolic number that the frequency spectrum share time that second user transmission terminal is acquired is included is 12.If it is understood that number When needing the long time according to processing time, several symbols can also be taken more, then be available for second user to send terminal and use The frequency spectrum share time accordingly reduce.In another embodiment, according to extension CP, then 12 are included each dispatching cycle Symbol, then can be used for frequency spectrum detection by the time corresponding to symbol #0, the time corresponding to symbol #1 is used for into data processing, Time corresponding to symbol #2~#10 sends the frequency spectrum share time that terminal is used for second user, i.e. second user is sent eventually The symbolic number that the frequency spectrum share time that end is acquired is included is 9.

S202：Second user sends terminal and obtains the sub-carrier number that subband is included.Second user sends terminal and will authorized Partly or entirely be divided at least one subband in the mandate frequency spectrum of user, each subband it is equal in magnitude, and per height Band includes at least one subcarrier.Also referring to Fig. 4 and Fig. 5, second user sends terminal by the mandate frequency spectrum of authorized user Partial frequency spectrum be divided into multiple equal-sized subbands, it is common in authorized user's mode that these subbands are that second user sends terminal The frequency spectrum resource enjoyed.In the present embodiment, a width of 4 resource blocks (RB, Resource Block) of the band of subband are included Sub-carrier number, each resource block includes 12 subcarriers.Therefore, subband is included sub-carrier number=12 × 4=48.At it In its embodiment, the quantity for the subcarrier that the resource block quantity and each resource block that subband is included are included can be pressed It is actually needed and voluntarily sets, does not enumerate herein.

The second user sends terminal and authorizes frequency spectrum to be divided into one or more sizes part or all of authorized user The sub-band division method of equal subband, i.e. authorized user's frequency spectrum include several subbands, and each subband is in authorized user's frequency spectrum In starting and ending position, for well known to second user sends terminal and opposite end.

It is preferred that, second user sends terminal by remaining in authorized user's frequency spectrum in addition to for transmitting upstream control signaling Partial frequency spectrum is used as the authorized user's frequency spectrum resource for being available for being shared in second user mode with second user terminal.

Wherein, S201 and S202 do not have precedence relationship, in other embodiments, can also first carry out S202, then hold Row S201.

S203：Second user sends terminal and calculates the available resources number that minimum shared cell is included.

After the sub-carrier number that the symbolic number and subband that the acquisition frequency spectrum share time is included are included, it can calculate minimum shared The available resources number of unit.Wherein, minimum shared cell refers to be provided to second within a dispatching cycle and a subband User sends the shared running time-frequency resource number of terminal.

Whether according to subband simultaneously for transmitting user data and transmission control information, minimum shared cell is divided into the first kind The minimum shared cell of minimum shared cell and Equations of The Second Kind.Wherein, control information at least sends terminal including second user and shared The information of which authorized user's subband.

Subband corresponding to first kind minimum shared cell is served only for transmitting user data, is not used in transmission control information. Thus, the son load that the minimum shared cell of the bandwidth of subband, the i.e. first kind is included is equal on first kind minimum shared cell frequency domain Wave number is equal to the sub-carrier number that subband is included.

Subband corresponding to Equations of The Second Kind minimum shared cell is additionally operable to transmit control information in addition to user data, so, Equations of The Second Kind minimum shared cell has also needed frequency resource to can be used for number of users except a part of frequency resource is transmitted into control information According to therefore, the son that the sub-carrier number that subband included subtracts transmission control information being equal on Equations of The Second Kind minimum shared cell frequency domain Carrier number.The sub-carrier number for transmitting control information is determined in advance by second user transmission terminal, such as, when the band of subband is a width of During the frequency resource that 4RB is included, the subcarrier that the sub-carrier number of transmission control information is included by 1RB can be determined in advance Number, now, for transmitting the sub-carrier number that the sub-carrier number of user data is included by 3RB.

If the sub-carrier number of transmission control information is equal to the sub-carrier number that subband is included, all sons of the subband are carried Ripple is all used to transmit control information, it is impossible to be used in transmission user data, therefore, now in the absence of the minimum shared cell of Equations of The Second Kind. Or, can also be prior about by system even if the sub-carrier number of transmission control information is less than the sub-carrier number that subband is included It is fixed, the minimum shared cell of Equations of The Second Kind is not set, i.e., control information is only carried in the subband of transmission control information, user is not carried Data.

When calculating the number of resources of minimum shared cell, second user sends terminal first according to transmission control information Sub-carrier number and the sub-carrier number that is included of subband, it is determined whether there is the minimum shared cell of Equations of The Second Kind.If transmission control The sub-carrier number of information is equal to the sub-carrier number that subband is included, then in the absence of the minimum shared cell of Equations of The Second Kind, only calculates first The number of resources of class minimum shared cell；If the sub-carrier number of transmission control information is less than the sub-carrier number that subband is included, There is the minimum shared cell of Equations of The Second Kind, it is necessary to calculate the money of the minimum shared cell of the first kind and the minimum shared cell of Equations of The Second Kind respectively Source number.

For the minimum shared cell of the first kind, number of resources=subband that first kind minimum shared cell is included is included The symbolic number that sub-carrier number × frequency spectrum share time is included.By taking the embodiment shown in Fig. 5 and Fig. 6 as an example, then the first kind is most Symbol=528 of the number of resources that small shared cell is included=12 subcarriers × 4RB × 11.

For the minimum shared cell of Equations of The Second Kind, the portion subcarriers in subband required to transmit control information, thus, second Number of resources=(sub-carrier number of the sub-carrier number that subband is included-transmission control information) that class minimum shared cell is included × The symbolic number that the frequency spectrum share time is included.Equally by taking the embodiment shown in Fig. 5 and Fig. 6 as an example, it is assumed that four moneys of subband A resource block in source block is used to transmit control information, then number of resources=12 that the minimum shared cell of Equations of The Second Kind is included are sub to be carried Symbol=396 of ripple × (4-1) RB × 11.

By designing the minimum shared cell of Equations of The Second Kind, can in resource needed for subband size is more than transmission control information, Make full use of and the surplus resources after control information are transmitted in subband, improve the utilization rate of resource.

Wherein, the available resources number of minimum shared cell subtracts minimum shared cell equal to the number of resources of minimum shared cell In be used for transmission of reference signals number of resources.Wherein, reference signal is used for the synchronization and demodulation of opposite end, and reference signal takes one Portion of time frequency resources in the shared list of minimum, such as carrys out transmission of reference signals using some symbols in the frequency spectrum share time, or Some running time-frequency resources are equably selected to carry out transmission of reference signals within the frequency spectrum share time.

Also referring to Fig. 6, an authorized user's internal symbol dispatching cycle #2~symbol #12 corresponding times are common for frequency spectrum Enjoy the time, symbol #4 and symbol #9 of the minimum shared cell 610 in the frequency spectrum share time are used for transmission of reference signals, with Exemplified by the embodiment of the minimum shared cell of the first kind including four resource blocks, then the available resources number of minimum shared cell= Symbol=432 of 528-12 subcarriers × 4RB × 2.For the minimum shared cell of Equations of The Second Kind, portion subcarriers in subband required to Control information is transmitted, Equations of The Second Kind minimum shared cell only includes removing remaining son after the subcarrier for transmitting control information in subband Carrier wave, the frequency resource included by a 1RB is taken with the frequency resource included by the above-mentioned a width of 4RB of subband band, control information The minimum shared cell of Equations of The Second Kind embodiment exemplified by, Equations of The Second Kind minimum shared cell frequency domain is the frequency money included by 3RB Source, then symbol=324 of available resources number=396-12 subcarriers × (4-1) RB of minimum shared cell × 2.

In another embodiment, reference signal can also be evenly distributed in a minimum shared cell.Using Fig. 7 as Example, reference signal R0 is evenly distributed in the frequency resource included in frequency by 1RB, on the time is frequency spectrum share time institute's group Into time frequency block in.By taking the embodiment of the minimum shared cell of the above-mentioned first kind including 4RB as an example, then minimum shared cell Symbol=496 of available resources number=528-4RB × 8.The frequency resource included for the above-mentioned a width of 4RB of subband band, control letter Breath takes the minimum shared cell of the Equations of The Second Kind of frequency resource that 1RB is included, then the available resources number of minimum shared cell= Symbol=372 of 396-3RB × 8.

S204：Calculate minimum shared cell carries data volume.

The available resources number for carrying data volume=minimum shared cell of minimum shared cell × order of modulation ÷ codings Speed.Thus, available resources number, order of modulation and the code rate of minimum shared cell need to be obtained respectively.

First, the available resources number of minimum shared cell can be obtained by previous step.

Secondly, order of modulation is obtained according to the modulation system of data.Second user sends terminal after modulation system is obtained It may know that its corresponding order of modulation.Such as：Table 1 shows the order of modulation corresponding to conventional modulation system.

Table 1 often uses modulation system and its corresponding order of modulation

Then, corresponding code rate is obtained according to coded system.

Modulation system and/or coded system can be that second user transmission terminal system is determined in advance, and immobilize, than Second user can such as be preset and send terminal all the time using QPSK modulation, 1/3 rate convolutional code can also be according to channel condition certainly High order modulation is used when the adjustment of adaptation, such as channel condition are preferable, low rate coding when channel condition is poor, is adjusted using low order System, it is high-rate coded.Regardless of mode, modulation system and/or coded system are all before packet segmentation or cascade Predicted by second user transmission terminal and opposite end.

Finally, calculated according to available resources number, modulation system and the coded system of a minimum shared cell and obtain one Individual minimum shared cell carries data volume.

Specifically, by taking the embodiment shown in Fig. 6 as an example, the available resources number of the minimum shared cell of a first kind is 432.Then when using QPSK modulation systems, order of modulation is 2, and code rate is 1/3, then this minimum shared cell is held The ÷ 3=288 bits of carrying capacity=432 × 2 × 1.The minimum shared cell available resources number of one Equations of The Second Kind is 342, then works as use During QPSK modulation systems, order of modulation is 2, and code rate be 1/3, then this minimum shared cell can bearing capacity=342 × 2 × 1 ÷ 3=228 bits.

S205：Before dispatching cycle, second user sends terminal and the user data of local terminal is modulated into packet, per number According to the size of bag data volume is carried no more than minimum shared cell.

Before dispatching cycle, second user sends terminal in advance by the MAC (Media comprising user data of local terminal Access Control) segmentation of layer data bag or it is cascaded as no more than one minimum shared cell of size and can carries the number of data volume Encoded and modulated according to predetermined coded system and modulation according to bag, and by this packet, after encoding and modulating The size of each packet carries data volume no more than minimum shared cell.Moreover, shared using first kind minimum The size of the packet of unit can carry data volume no more than the minimum shared cell of the first kind；Correspondingly, it is minimum using Equations of The Second Kind The size of the packet of shared cell can carry data volume no more than the minimum shared cell of Equations of The Second Kind.Each dispatching cycle, extremely It is have a packet using the minimum shared cell of Equations of The Second Kind more.

It is worth noting that, S201~S205 must be completed before dispatching cycle, it could realize and be sent in second user Terminal shares the function that authorized user's uplink frequency spectrum resource transmission second user sends terminal data in authorized user's mode.

S206：Second user sends frequency spectrum detection time of the terminal in dispatching cycle to each subband of authorized user Signal energy is detected, to determine whether there is idle subband.The idle subband is used to transmit control information or number of users At least one of according to.

The frequency spectrum detection time in dispatching cycle is determined, first has to obtain the subframe timing that second user sends terminal. One of which subframe timing acquisition methods are that second user sends the downstream signal that terminal receives the base station, so as to be connect The descending sub frame timing of base station is received, also, second user is sent terminal and the base station, second is linked into the way of authorized user User sends terminal and obtains the uplink timing advance that second user sends terminal from base station.Then second user sends the son of terminal The descending sub frame timing that frame timing is equal to second user transmission terminal reception base station subtracts the up fixed of second user transmission terminal When lead.Or, second user receives the downstream signal of the base station, so that the descending sub frame timing for receiving base station is obtained, Second user sends terminal using subframe timing of the base station down subframe timing as second user.

Second user sends terminal after subframe timing is obtained, and according to pre-defined mode, (by taking LTE as an example, i.e. LTE is marked Time division methods defined in accurate), you can obtain the initial time that second user sends each symbol of terminal.Second user is sent out Make arrangements for his funeral to hold and the signal energy of each subband of authorized user is detected in the period corresponding to first symbol, to determine Whether the subband is occupied.

By taking Fig. 8 as an example, second user send terminal the initial time of the first symbol is subtracted CP/2 (CP half) as Initial time, carries out fast Fourier transform, from the result after fast Fourier transform to the signal in the system bandwidth of authorized user The middle signal energy for extracting each subband.Wherein, only it can make fast Fourier transform to a symbol to obtain the signal energy of subband Amount situation.If the energy of subband is more than the threshold value of setting, subband is shared by authorized user's terminal, conversely, then subband does not have Have occupied, can be used for transmitting control information or user data that second user sends terminal.

It is to be appreciated that multiple symbols are made with fast Fourier transform, and by the energy of multiple symbols of each subband As the signal energy of the subband after amount is average, more accurately sensing results can be obtained by carrying out detection using multiple symbols, But reduce the frequency spectrum share time., can be in each symbol when multiple symbols are made with the energy situation of fast Fourier transform acquisition subband Number initial time subtract CP/2, fast Fourier transform is done to each symbol respectively, or continuously enter from first sign-on Several fast Fourier transforms of row.The initial time of symbol subtracts CP/2, can eliminate propagation delay time in CP/2 around The interference that user is brought.

It is all occupied if all of subband, then used in the dispatching cycle in the absence of can be supplied to second user transmission terminal Subband, i.e., in the absence of idle subband, into S207；Free time that terminal is used is sent if there is can be supplied to second user Band, into S208.

S207：Second user transmission terminal judges not detecting continuous dispatching cycle can be supplied to second user transmission eventually Hold whether the number of times of the idle subband used is more than the threshold number of setting.

Second user is sent in mandate frequency spectrum of frequency spectrum detection time of the terminal in each dispatching cycle to authorized user Second user is can be supplied to the presence or absence of at least one and sends the idle subband progress one-time detection that terminal is used, if do not detected It can be supplied to second user and send the idle subband that terminal is used, then number of times is added one, second user hair is can be supplied to if detected Make arrangements for his funeral and hold the idle subband used then to reset number of times.Therefore, it is available for if multiple continuous dispatching cycles all do not detect The idle subband that terminal is used is sent to second user, then number of times can be added up.

Judge not detecting continuous dispatching cycle and can be supplied to time that second user sends the idle subband that terminal is used Whether number is more than the threshold number of setting, if being not greater than the threshold number of setting, waits the frequency of next dispatching cycle Detection time is composed, returns and performs S206；If greater than the threshold number of setting, show the mandate frequency spectrum of authorized user busy Ground is used, then terminates flow.

S208：Second user sends terminal and judges whether the minimum shared cell of Equations of The Second Kind.

Second user sends terminal and judges whether the minimum shared cell of Equations of The Second Kind, shared if there is Equations of The Second Kind minimum Unit, as long as then detecting an idle subband, it is possible to utilize this idle subband transmission control information and user data；Such as The minimum shared cell of Equations of The Second Kind is not present in fruit, then at least two idle subbands can just carry out data transmission, wherein at least one Idle subband is used to transmit control information, and remaining idle subband is used to transmit user data.

Thus, if there is Equations of The Second Kind resource-sharing unit, then S209 is performed, if it does not exist, then judging idle subband Quantity whether be more than or equal to 2, if greater than or equal to 2, then perform S209, otherwise, wait next dispatching cycle, Return and perform S206.

S209：Second user, which sends terminal and selects to be less than or equal to from all customer data bag, to be used to transmit user data The user data package of the idle number of sub-bands of bag.

Second user sends terminal and judges whether the quantity of the idle subband for transmitting user data package is less than number of users According to the quantity of bag；If being less than the quantity of user data package for transmitting the idle number of sub-bands of user data package, from all Selection is less than or equal to the user data package for the idle number of sub-bands for being used to transmit user data package in user data package, each Packet, which is mapped to one, is used for the idle subband of transmission packet；If the idle number of sub-bands for transmitting user data package It is more than or equal to the quantity of user data package, then without any processing.

Specifically, if there is the minimum shared cell of Equations of The Second Kind, the quantity for the idle subband of transmission packet is equal to The quantity of the idle subband detected；If there is no the minimum shared cell of Equations of The Second Kind, the idle subband for transmission packet Quantity be equal to the idle sub-band number that detects and subtract one.The selection of second user terminal is less than or equal to the free time for transmission packet The packet of sub-band number is used for the transmission of this dispatching cycle.

Such as, if there is the minimum shared cell of Equations of The Second Kind, moreover, the quantity of Equations of The Second Kind minimum shared cell is 1, it is idle The quantity of subband is 4, and user data package quantity is 8, then second user sends terminal and selects 4 user data packages in this scheduling week Phase transmits, wherein, if using the minimum shared cell of Equations of The Second Kind, it is necessary to select one no more than the minimum shared cell of Equations of The Second Kind Can bearing capacity user data package, and the user data package and control information share an idle subband.

If there is no the minimum shared cell of Equations of The Second Kind, the quantity of idle subband is 4, and user data package quantity is 8, then the Two users send terminal and select 3 user data packages to be transmitted in this dispatching cycle, and remaining one idle subband, which is used to transmit, to be controlled Information processed.

Second user, which sends terminal and selects to be less than or equal to from all customer data bag, to be used to transmit user data package The system of selection of the user data package of idle number of sub-bands is if there is the minimum shared cell of Equations of The Second Kind, then to select one small Carrying the user data package of data volume in or equal to the minimum shared cell of Equations of The Second Kind is used to transmit in Equations of The Second Kind shared cell； Then it is equal to (idle number of sub-bands -1) individual user data package, the choosing of these user data packages from the selection of remaining users packet Selection method can be selected according to transmission priority, for example, select transmission priority highest (idle number of sub-bands -1) user Packet, or according to the arrival physical layer time of user data package, select (the idle number of sub-bands -1) that reaches earliest is individual to use User data bag；If there is no the minimum shared cell of Equations of The Second Kind, then select (idle number of sub-bands -1) individual from all packets User data package, the system of selection of these user data packages can be selected according to transmission priority, for example, select transmission preferences Level highest (idle number of sub-bands -1) user data package, or according to the arrival physical layer time of user data package, selection is most (idle number of sub-bands -1) the individual user data package early reached.

S210：Second user sends the mapping relations that terminal determines packet and idle subband.

Specifically, second user terminal selects an idle subband as the subband of transmission control information first.Its minor Band is used to transmit user data package.The method that an idle subband is selected as the subband of transmission control information, specifically, The idle subband of selection first is controlled as the subband for transmitting control information, or the minimum idle subband of selection energy as transmission The subband of information processed, either selects last idle subband as the subband of transmission control information or selects in The idle subband of one of frequency of heart is used as the subband for transmitting control information.

Due to when for transmit user data package idle number of sub-bands be less than user data package quantity when, can be through step S209 is selected packet, so, the quantity of user data package can only be less than or be used equal to for transmitting in this step The quantity of user data bag free time subband.

Quantity if there is the minimum shared cell of Equations of The Second Kind, and user data package is equal to idle number of sub-bands.Second uses Family sends terminal and selects one of them to be not more than with the carrying ground data volume packet mapping of the minimum shared cell of Equations of The Second Kind first To the remainder of the idle subband of transmission control information, remaining each user data package is mapped to an idle subband.If There is the minimum shared cell of Equations of The Second Kind, and the quantity of user data package is less than idle number of sub-bands.It is first that second user sends terminal First selecting one of them to be not more than the minimum shared cell of Equations of The Second Kind, packet is mapped to transmission control letter with carrying ground data volume The remainder of the idle subband of breath, reselection is equal to the idle subband of remaining user data package quantity, remaining each user Packet is sequentially mapped to selected idle subband.

If there is no the quantity of the minimum shared cell of Equations of The Second Kind, and user data package use is subtracted equal to idle number of sub-bands It is equal to idle number of sub-bands in the idle number of sub-bands of transmission control information, the i.e. quantity of user data package and subtracts one.Second user Terminal is sent after it have selected the subband for transmitting control information, remaining each user data package is mapped to an idle son Band.

If there is no the quantity of the minimum shared cell of Equations of The Second Kind, and user data package use is subtracted less than idle number of sub-bands It is less than idle number of sub-bands in the idle number of sub-bands of transmission control information, the i.e. quantity of user data package and subtracts one.Second user Terminal is sent after it have selected the subband for transmitting control information, selection is equal to user data package number in remaining idle subband The idle subband of amount, and each user data package is sequentially mapped to selected idle subband.

The method of the idle subband of selection can be that the order according to idle subband is selected, either, according to sky The order of the size of not busy subband signal energy from small to large is selected.

Also referring to Fig. 9, show a case that packet being mapped to after idle subband in figure.As shown in figure 9, one In individual dispatching cycle, the mandate frequency spectrum of authorized user includes 11 subbands, including：5 unavailable subbands and 6 free time Subband.Second user sends terminal and selects first idle subband in 6 idle subbands to be used to transmit control information first, remains The idle subband of remaining 5 is used to transmit user data package.If user data package quantity is 3, then energy is selected from 5 idle subbands 3 minimum idle subbands of amount are used to transmit user data package.Wherein, unavailable subband is except idle son in authorized user's frequency spectrum Other subbands outside band, are included in the busy subband that step S206 is detected, and can not possibly be used in authorized user's frequency spectrum The shared subband of second user, such as partly or completely with transmitting physical ascending control channel (PUCCH) frequency resource.

Wherein, the idle subband selection course in the packet selection course and step S210 in step S209 is not clear and definite Sequencing, if for transmit user data package idle number of sub-bands be less than the user data package quantity, from Selection is less than or equal to the user data package for the idle number of sub-bands for being used to transmit user data package in all customer data bag；Such as Fruit is used for quantity of the idle number of sub-bands more than or equal to user data package for transmitting user data package, then is used to pass from all Selection is equal to the idle subband for data packet number in the idle subband of transmission of data bag, and each packet is mapped to an institute The idle subband selected.

S211：According to the mapping relations of identified packet and idle subband, control information is generated, and to control information It is modulated and is encoded into control information packet.

After the mapping relations of user data package and idle subband are determined, second user sends terminal according to user data The mapping relations of bag and idle subband, generate control information, control information, which is included, to be used to represent which subband carries number of users According to the information of bag, one of which method for expressing is to indicate whether some subband has map user packet with 1 bit respectively, Represent there is no map user packet if " 0 ", then " 1 " represents to have mapped user data package.By taking Fig. 9 as an example, totally 11 sons Band, mapping relations are represented with 11 bit datas, then the control information generated according to Fig. 9 mapping relations is： 00101001000。

Control information can also further include the modulation system of the packet that idle subband be carried, coded system, with And the information such as the precoded sequence number under multi-antenna mode.Whether the modulation methods of packet that idle subband carried are included The information such as formula, coded system depend on whether that system is set.If the modulation system coded system of system settings data bag It is fixed, then the modulation coding mode of packet need not be included, if the modulation coding mode of packet is variable, needs to include number According to the modulation coding mode of bag.

Further, second user sends terminal after generation control information, by control information according to pre-defined lattice Formula mode is modulated and encoded.Sky of the size no more than transmission control information of control information packet after modulation and coding The data volume that not busy subband can be carried.

The transmission means of one of which control information is by control information as other packets, to be reflected after modulating-coding Be mapped to for transmit control information idle subband in carrying data message resource unit (RE, Resource Element).As packet, in this manner, the idle subband for transmitting control information is divided into carrying data message RE and carrying reference signal RE.Control information after modulation be mapped to for transmit control information idle subband in carry The RE of data message, reference signal is mapped to the RE of carrying reference signal.Carried in idle subband for transmitting control information The RE of data and the RE of carrying reference signal arrange in advance, it is assumed that the idle subband for transmitting control information includes 2RB, first Individual RB is used for carrying reference signal, and second RB is used for carrying control information data, referring to Figure 10, or, accorded with preceding several Number carrying reference signal, several rear symbols carry control information data participate in Figure 11, or, evenly distribute several symbols For carrying reference signal, remaining symbols carry control information data, referring to Figure 12.

The modulation coding mode of control information is what system was arranged in advance, such as modulation system is modulated for QPSK, coding staff Formula is 1/3 tail-biting convolutional code.Second user sends terminal first according to for transmitting the carrying in the idle subband of control information The RE of control information and the RE of carrying reference signal agreement, calculate the carrying control of the idle subband for transmitting control information The RE of information size, will cause control information data to fill up for passing after the control information data through-rate matching after coding The RE of carrying control information in the idle subband of defeated control information.

Assuming that authorized user's frequency spectrum is divided into 25 subbands, each subband is indicated whether by second user with 1 bit Send terminal can use, then have 25 bits, and assume that control information includes the modulation coding mode of packet, modulation coding mode Represented with 5 bits, then control information has 30 bits, along with 16 bit cyclic redundancies (CRC), have 46 bits. 46 bit informations are converted into corresponding control information data according to the design method of the idle subband for transmitting control information Bag.It is assumed that the frequency spectrum share time is 11 symbols, the idle subband size for transmitting control information is 2RB, wherein, there are 3 Symbol is used for transmitting reference information, then the RE for being used for carrying control information data in the idle subband for transmitting control information is 24 × 11-23 × 3=192.Control information is modulated using QPSK, then can carry 384 bits altogether.The control letter of 46 bits Breath through-rate matching after 1/3 tail biting convolutional encoding is 384 bits, is changed into 192 modulation numbers after then being modulated through QPSK According to the data after modulation are respectively mapped to transfer out on 192 RE of control information.

The generating mode of wherein another control information packet is that different control information is corresponded to different sequences On, the length of sequence is exactly equal to the RE numbers of control information subband.Such as, the corresponding sequence of control information is m-sequence, m-sequence Length be equal to control information subband carry RE numbers, with different control information as the different initial value of m-sequence, so as to generate For representing that the length of different control information is exactly equal to the sequence of the RE numbers of control information subband carrying, this sequence is used as control Information packet processed, is mapped to control information subband；Or, the corresponding sequence of control information is FZC sequences, the length of FZC sequences Degree is equal to the RE numbers that control information subband is carried, and corresponds to different FZC sequences, such as FZC sequences respectively with different control information The root of row or displacement, so as to generate for representing that the length of different control information is exactly equal to the RE of control information subband carrying Several sequences, this sequence is mapped to control information subband as control information packet.

S212：Second user sends terminal within the frequency spectrum share time of dispatching cycle, according to identified mapping relations, Control information packet and packet are mapped to idle subband, and transferred out.

By taking ofdm system as an example, each packet (including control information packet) is by first within the frequency spectrum share time The data of individual symbol are each mapped to corresponding subband, and the data of unavailable subband are filled with " 0 ", then by IFFT modules 1302 transform to time domain, then increase CP by increasing CP modules 1303, in parallel-serial converter module 1304 is sent to, are changed into Series signals, then transferred out by being sent in front end of emission 1305, as shown in figure 13.Next locate in the same way The data of second symbol in the frequency spectrum mapping shared time are managed, the rest may be inferred, last within by the frequency spectrum share time The data of individual symbol are also transferred out.

For SC-FDMA systems, packet can also be first passed around and each subband is re-mapped after DFT, please joined in the lump Figure 14 is read, exemplified by not comprising the minimum shared cell of Equations of The Second Kind, by (L-1) that modulates individual carrying second user data message Packet carries out discrete Fourier transform computing (DFT, the Discrete Fourier of M points by M points DFT block 1401 respectively Transform), each packet obtains corresponding M discrete signal, wherein, the sub-carrier number that M is included for idle subband, L For idle sub-band number, in shared cell minimum not comprising Equations of The Second Kind, L is the natural number more than 1, and N is fast Fourier transforma Change the points of (IFFT), N>M.The corresponding discrete signal x (1,1, N) of control information~x (1, M, N) can be become by M points DFT Change, M point DFT transforms can not also be passed through.During mapping, by the subcarrier corresponding to busy subband with 0 filling, and by frequency domain Control information and the corresponding packet of data message are mapped to corresponding idle son according to mapping relations determined by above-mentioned steps Take, time domain is then transformed to by IFFT modules 1402.Then increase CP by increasing CP modules 1403, be sent to simultaneously-string In modular converter 1404, it is changed into series signals, then transfer out by being sent in front end of emission 1405.

Further, second user sends terminal and is linked into authorized user's network with authorization, and what it is from serving cell is In system broadcast message, obtain the cell and whether employ frequency hopping in subframe, and frequency hopping parameter.Specifically, for LTE Speech, second user sends terminal and is linked into cellular network in authorized user's mode, from the system information block message of serving cell, Physical Uplink Shared Channel common configuration parameter (PUSCH-ConfigCommon) is solved, whether the user for obtaining cellular basestation uses The parameter (intra-subframe hopping) of frequency hopping in subframe.Further, Physical Uplink Shared Channel can also be obtained Frequency hopping shift amount (pusch-HoppingOffset).In with subframe in the case of frequency-hopping mode communication, in a dispatching cycle In the frequency spectrum share time the first time slot according to identified mapping relations by control information and packet be mapped to correspondence Idle subband and sent to opposite end, packet is mapped to determined by the first time slot corresponding to idle subband in the second time slot Frequency hopping after corresponding idle subband and sent to opposite end.Specifically, if second user sends the mandate that terminal is shared User employs frequency hopping in subframe, then in preceding 1 time slot (preceding 0.5ms) of authorized user's dispatching cycle, and second user is sent eventually End data bag is mapped to corresponding idle subband according to mapping relations determined by above-mentioned steps, in authorized user dispatching cycle Second time slot, in the idle subband of first time slot, respectively according to the pattern of frequency hopping in subframe, is corresponded in corresponding subframe Frequency hopping subband, second user sends terminal data in second time slot of authorized user's dispatching cycle, is respectively mapped to first The idle subband of time slot is according on the idle subband after frequency hop pattern frequency hopping.Because authorized user employs frequency hopping in subframe, award Weighing user can be according to fixed frequency hop pattern in the second time slot frequency hopping to new frequency in the frequency spectrum shared by the first time slot.Cause This, accordingly, idle subband also can carry out frequency hopping according to frequency hop pattern.By taking Figure 15 as an example, second user sends terminal in scheduling First time slot in cycle detects 6 idle subbands, respectively subband 3,4,6,9,10,11, wherein first idle subband I.e. subband 3 is used for transmitting control information, and remaining 5 idle subbands carry 1~packet of packet 5 respectively.The frequency hopping in subframe When, it is assumed that frequency-hopping mode is that circulation moves down 6 subbands, then the subband after the correspondence of subband 3,4,6,9,10,11 frequency hopping for 9,10, 12、3、4、5.Then in first time slot of dispatching cycle, the idle subband for transmitting control information is mapped to subband 6, data Bag 1~packet 5 is respectively mapped to subband 4,6,9,10,11, in second time slot of dispatching cycle, for transmitting control information Idle subband be mapped to subband 9,1~packet of packet 5 is respectively mapped to subband 10,12,3,4,5.Or, if authorized User employs frequency hopping in subframe, can also be further, will be changed to 1 time slot (0.5ms), the beginning of each time slot dispatching cycle Time is frequency spectrum perception and data processing time, for first time slot, terminate from data processing time to the first time slot when Between be the frequency spectrum share time, for the second time slot, from data processing time to the Sounding sign-on times be frequency spectrum share Time.Second user terminal divides according to the new time and performs step S201~S212.

S213：Second user sends terminal and judges whether all packet end of transmissions.If packet is not transmitted Finish, return to step S206, step S206~S213 is repeated in next dispatching cycle, until all packets are transmitted Finish.If all of packet end of transmission, terminate flow.

Refering to Figure 16, Figure 16 is the flow chart of the application uplink frequency spectrum resource sharing method a further embodiment.Upper line frequency Spectrum resource sharing method includes：

S1601：Second user receiving terminal sends terminal in the frequency spectrum share time of dispatching cycle according to second user Identical sub-band division mode, the subband of control information is transmitted in search in the subband in the mandate frequency spectrum of authorized user successively. If second user receiving terminal searches the subband of transmission control information, step S1602 is performed；Otherwise, wait next Dispatching cycle, step S1601 is performed, or terminate flow.

The subband for searching for transmission control information in each subband successively, specifically, second user receiving terminal, according to With second user send subband coding rule that terminal arranges in advance (such as subband can from high to low be numbered according to frequency, or Number from low to high, or subband is numbered from centre frequency to both sides etc.), transmit control information from most probable successively Subband, according to subband coding rule, the subband of search transmission control information successively.If arrange second user send terminal from Low frequency starts, and control information is mapped to first idle subband to send to second user receiving terminal.Then second user Accordingly subband is numbered from low frequency to high-frequency for receiving terminal, and then subband is scanned for according to the order of numbering.

Search transmission control letter in the subband of the second user receiving terminal successively in the mandate frequency spectrum of authorized user The subband of breath, further for second user first determines whether whether first subband has control information biography according to subband coding rule It is defeated, if so, then this subband is transmits the subband of control information, if it is not, judging whether second subband has control Information transfer, the rest may be inferred, until finding the subband of transmission control information, or has searched for all subbands.

The second user receiving terminal judges whether some subband has control information transmission, if specifically, control letter Breath is transmitted according to step S211 first way, i.e., control information transmission subband includes control information packet and control information is joined Signal is examined, control information is carried in control information packet, then second user receiving terminal transmits subband according to control information Size and control information reference signal transmission rule, it is related to the reception signal for detecting subband with local reference signal, if phase Close peak value and be more than threshold value, then according to control information packet mapping ruler, the data in the subband are demodulated, if demodulated solution Data validation after code is effective control information, then it is assumed that searched control information, and the subband is control information subband.Institute The confirmation effective method of data is stated, specifically, decoded result is correct, as CRC check passes through, or further, decoded result The correct and control information that solves is in valid value range, then it is assumed that data are effective；If control information is according to step S211 Two kinds of modes are transmitted, i.e., different control information corresponds to different sequences, then second user receiving terminal successively with it is all can The sequence of energy is related to the reception signal progress in subband, and the maximum sequence of the peak value after correlation is if greater than threshold value, then it is assumed that The subband is the subband of transmission control information, and the control information corresponding to the corresponding sequence of the correlation peak is to receive Second user send terminal send control information.

S1602：Determined to transmit the idle subband of user data package according to the control information of acquisition.Second user is received eventually Termination is received after control information, the subband of transmission packet is obtained from control information, such as：If control information is " 00101001000 ", wherein, " 0 " represents that the subband is not used in transmission user data package, " 1 " represent the subband be used for transmit use User data bag, then the control information represent the 3rd subband, the 5th subband and the 8th subband be used for transmit user data package.

S1603：The demodulation of second user receiving terminal transmits the number of the subband of user data package within the frequency spectrum share time According to, and the data after the demodulation of each subband are decoded, obtain the user data package that second user sends terminal transmission.

Such as control information shows that the 3rd subband, the 5th subband and the 8th subband are used for transmission packet, then second user The data of the subband of receiving terminal demodulation second user receiving terminal the 3rd, the 5th subband and the 8th subband, and respectively to the 3rd Data decoding after subband, the 5th subband and the demodulation of the 8th subband, obtains the decoded result of three packets, and exit stream Journey.

Figure 17 is participated in, Figure 17 is the structural representation that the application second user sends the embodiment of terminal one.This embodiment party Second user sends terminal and included in formula：Division module 1701, data processing module 1702, detection module 1703, mapping relations Determining module 1704 and sending module 1705.Data processing module 1702 couples one end of sending module 1705.Division module One end of 1701 coupling detection modules 1703, the one of the other end coupling mapping relations determining module 1704 of detection module 1703 End, the other end of mapping relations determining module 1704 couples the other end of sending module 1705.

Division module 1701 is used to partly or entirely be divided at least one subband in the mandate frequency spectrum of authorized user, Each subband is equal in magnitude, and division module 1701 sends division result to detection module 1703.

Data processing module 1702 was used for before dispatching cycle, and the data of local terminal are modulated into number by data processing module 1702 According to bag, the size of each packet is no more than the data volume that carries of minimum shared cell, and data processing module 1702 is by data Wrap and sent to sending module 1705.Such as, before dispatching cycle, second user sends terminal in advance by the MAC layer data of local terminal The packet of data volume can be carried by splitting or being cascaded as no more than one minimum shared cell of size, and by this packet according to Predetermined coded system and modulation are encoded and modulated, and the size of each packet after encoding and modulating is no more than one Individual minimum shared cell carries data volume.Minimum shared cell refers to that a packet can be carried in a dispatching cycle Minimum share running time-frequency resource, dispatching cycle is the minimum time unit that authorized user carries out the transmission of packet.One most The maximum number bits for carrying data volume to carry in one minimum shared cell of small shared cell.One minimum is shared single The size of the frequency resource shared by no more than one subband of frequency resource size shared by member.

Detection module 1703 is used for the frequency spectrum detection time in dispatching cycle, is in the mandate frequency spectrum for detecting authorized user It is no to can be supplied to the idle subband that second user transmission terminal is used in the presence of at least one, wherein, idle subband is that second user is sent out Make arrangements for his funeral to hold and detect the subband that authorization user signal is less than threshold value, and each more than or equal to one minimum of idle subband is common The frequency resource shared by unit is enjoyed, detection module 1703 sends testing result to mapping relations determining module 1704.

Mapping relations determining module 1704 is used for when there is at least one idle subband, it is determined that idle subband and packet Mapping relations, and mapping relations are sent to sending module 1705.

Sending module 1705 is used for received data packet and mapping relations, and in the frequency spectrum share time of dispatching cycle, will Packet is mapped to corresponding idle subband according to identified mapping relations, to send the number to opposite end by idle subband According to bag.Such as, second user sends frequency spectrum share time of the terminal within a dispatching cycle, by the packet mapping scheduler cycle In the frequency spectrum share time idle subband and sent to opposite end, wherein, generally within a dispatching cycle, the frequency spectrum detection time After have one piece of data processing time, for handling frequency spectrum detecting result, determine mapping relations and generation control information Signaling etc., followed by frequency spectrum share time, the frequency spectrum share time are one section after data processing time in same dispatching cycle Time, for transmitting packet.Specifically, second user sends the sky that a packet is mapped to authorized user by terminal Not busy subband.If there is multiple packets and multiple idle subbands, then each packet is mapped to an idle subband.

Refering to Figure 18, Figure 18 is the structural representation that the application second user sends another embodiment of terminal.This implementation Second user sends terminal and included in mode：Division module 1810, computing module 1820, data processing module 1830, detection mould Block 1840, mapping relations determining module 1850 and sending module 1860.Wherein, computing module 1820 includes the symbol being linked in sequence Number acquiring unit 1821, subcarrier acquiring unit 1823 and computing unit 1825.Mapping relations determining module 1850 includes suitable The judging unit 1851 and mapping relations determining unit 1853 of sequence connection.One end connection computing module of division module 1810 The one of 1820 subcarrier acquiring unit 1823, the coupling data processing module 1830 of computing unit 1825 of computing module 1820 End, other end coupling sending module 1860 one end of data processing module 1830.The other end coupling detection of division module 1810 One end of module 1840, the one of the judging unit 1851 of the other end coupling mapping relations determining module 1850 of detection module 1840 End, one end of the other end coupling mapping relations determining unit 1853 of judging unit 1851, mapping relations determining unit 1853 The other end couples the other end of sending module 1860.

Division module 1810 is used to partly or entirely be divided at least one subband in the mandate frequency spectrum of authorized user, Each subband is equal in magnitude.

What computing module 1820 was used to calculating minimum shared cell carries data volume, wherein, minimum shared cell can Carry available resources number × order of modulation ÷ code rates of data volume=minimum shared cell.Such as, obtain single by symbol Member 1821, subcarrier acquiring unit 1823 and computing unit 1825 calculate the available resources number for obtaining minimum shared cell.

Symbol acquiring unit 1821 is used to obtain the symbolic number that the frequency spectrum share time included, and symbol acquiring unit 1821 will The symbolic number that the frequency spectrum share time is included is sent to computing unit 1825.Such as, the dispatching cycle of authorized user is used to authorize Family system is previously set, and carries out the minimum time unit of a packet transmission, i.e., the minimum of one complete data packet transmission Time.Such as, in 3GPP LTE systems and global microwave internet access system, dispatching cycle is 1 subframe, of 3GPP LTE mono- Frame length is 1 millisecond, and 3GPP LTE dispatching cycle is 1 millisecond.Second user sends terminal it is determined that shared 3GPP LTE systems After the mandate frequency spectrum of system, the dispatching cycle for obtaining authorized user is set according to 3GPP LTE protocols.And worldwide interoperability for microwave accesses The subframe lengths of system can be 2 milliseconds, 2.5 milliseconds, 4 milliseconds, 5 milliseconds, 8 milliseconds, 10 milliseconds, 12.5 milliseconds, 20 milliseconds etc. Deng.The subframe lengths of WiMAX system are broadcasted by the base station in WiMAX system by downlink signaling, and second user is sent eventually Hold it is determined that after the mandate frequency spectrum of shared WiMAX system, authorized user is obtained from the downlink signaling of the base station in WiMAX system Subframe lengths, so as to obtain the dispatching cycle of WiMAX system.

Second user sends terminal and the time of one dispatching cycle is divided into frequency spectrum detection time, data processing time, frequency Spectrum shared time and other time.Wherein, the frequency spectrum detection time accounts for for the subband that second user sends terminal-pair authorized user The period detected with situation.Data processing time mainly includes frequency spectrum detecting result and handled, and generation control information With packet mapping relations etc..The frequency spectrum share time shares authorized user's resource to be available for second user to send terminal, to transmit The time of packet.Other time second user send terminal determine without using time, such as detectable signal time, detection letter Number time is used for authorized user's terminal and sends detectable signal.

As shown in figure 3, in 3GPP LTE systems, the dispatching cycle of authorized user is 1 millisecond, when using before ordinary cycle When sewing, include symbol #0~#13 totally 14 symbols each dispatching cycle.Wherein, each symbol correspondence a period of time.Second user Send terminal and determine that the time corresponding to symbol #0 is the frequency spectrum detection time, when the time corresponding to symbol #1 is data processing Between, and the time corresponding to symbol #13 is time of the authorized user for sending detectable signal, the symbol #13 corresponding times account for Frequency spectrum is different from the frequency spectrum that the time corresponding to symbol #0~symbol #12 takes, thus second user sends terminal determination The times of symbol #2~#12 corresponding to totally 11 symbols make as being available for second user to send terminal in LTE dispatching cycles The frequency spectrum share time.Or, if the time shared by the frequency spectrum detection time is shorter, second user sends terminal and determined Time corresponding to symbol #0 is the time and frequency spectrum detection time of data processing, and totally 12 symbol institutes are right by symbol #1~#12 The time answered is used as the frequency spectrum share time for being available for second user transmission terminal to use in dispatching cycle, i.e. second user is sent The symbolic number that the frequency spectrum share time that terminal is acquired is included is 12.If it is understood that data processing time needs During the long time, several symbols can also be taken more, then be available for second user to send the frequency spectrum share time that terminal is used It is corresponding to reduce.In another embodiment, according to extension CP, then include 12 symbols each dispatching cycle, then can be by Time corresponding to symbol #0 is used for frequency spectrum detection, and the time corresponding to symbol #1 is used for into data processing, symbol #2~#10 institutes The corresponding time is that second user sends the frequency spectrum share time that terminal is used, i.e. second user sends what terminal was acquired The symbolic number that the frequency spectrum share time is included is 9.

Subcarrier acquiring unit 1823 is used to obtain the sub-carrier number that subband is included, and subcarrier acquiring unit 1823 is by son The sub-carrier number that band is included is sent to computing unit 1825.Such as, refering to Fig. 4 and Fig. 5, second user sends terminal and will authorized The part or all of frequency spectrum of the mandate frequency spectrum of user is divided into multiple equal-sized subbands.Wherein, subband includes at least one Subcarrier.In the present embodiment, the sub-carrier number that a width of 4 resource blocks of the band of subband are included, each resource block includes 12 Individual subcarrier.Therefore, subband is included sub-carrier number=12 × 4=48.In other embodiments, subband is included Resource block quantity and the quantity of subcarrier that is included of each resource block can voluntarily set according to actual needs, differ herein One enumerates.

The subcarrier that the symbolic number and subband that computing unit 1825 is included for the received spectrum shared time are included Number, and the available resources number that minimum shared cell is included is calculated, the available resources number that minimum shared cell is included is equal to most The number of resources that small shared cell is included subtracts the number of resources for transmission of reference signals, if minimum shared cell be the first kind most Small shared cell, the then number of resources that the minimum shared cell of the first kind is included is total to equal to the sub-carrier number that subband is included with frequency spectrum The product for the symbolic number that the time of enjoying is included；If minimum shared cell is the minimum shared cell of Equations of The Second Kind, Equations of The Second Kind minimum is altogether Enjoy the number of resources that unit included be equal to the difference of sub-carrier number that subband included and the sub-carrier number of transmission control information with frequently The product for the symbolic number that the spectrum shared time is included.Such as, the symbolic number and subband that the acquisition frequency spectrum share time is included are wrapped After the sub-carrier number contained, the available resources number of minimum shared cell can be calculated.Wherein, minimum shared cell refers in a scheduling Second user is provided in cycle and a subband and sends the shared running time-frequency resource number of terminal.

In another embodiment, reference signal can also be evenly distributed in a minimum shared cell.Using Fig. 7 as Example, reference signal R0 points be evenly distributed in the frequency resource included in frequency by 1RB, on the time be frequency spectrum share time institute In the time frequency block of composition.By taking the embodiment of the minimum shared cell of the above-mentioned first kind including 4RB as an example, then minimum shared cell Symbol=496 of available resources number=528-4RB × 8.The frequency resource included for the above-mentioned a width of 4RB of subband band, control Information takes the minimum shared cell of the Equations of The Second Kind of frequency resource that 1RB is included, then the available resources number of minimum shared cell= Symbol=372 of 396-3RB × 8.

Hereafter, computing module 1820 is obtained obtains order of modulation according to the modulation system of data.After modulation system is obtained It may know that its corresponding order of modulation.Table 1 specifically is referred to, does not repeat to repeat herein.

Computing module 1820 obtains corresponding code rate according to coded system.Modulation system and/or coded system can be with It is that second user transmission terminal system is determined in advance, and immobilizes, such as, second user transmission terminal can be preset and adopted all the time Modulated, 1/3 rate convolutional code, can also be used according to the adjustment of channel condition adaptively, such as channel condition when preferable with QPSK High order modulation, low rate coding is high-rate coded using low-order-modulated when channel condition is poor.Regardless of mode, adjust Mode and/or coded system processed are all to send terminal and opposite end by second user before packet segmentation or cascade to predict 's.

After available resources number, modulation system and the coded system of minimum shared cell is obtained, computing module 1820 is counted Calculate obtain minimum shared cell carry data volume.Such as, by taking the embodiment shown in Fig. 6 as an example, a first kind The available resources number of minimum shared cell is 432.Then when using QPSK modulation systems, order of modulation is 2, and code rate is 1/3, then this minimum shared cell can the ÷ 3=288 bits of bearing capacity=432 × 2 × 1.The minimum shared cell of one Equations of The Second Kind Available resources number is 342, then when using QPSK modulation systems, order of modulation is 2, and code rate is 1/3, then this minimum is common That enjoys unit can the ÷ 3=228 bits of bearing capacity=342 × 2 × 1.

Data processing module 1830 was used for before dispatching cycle, and second user sends terminal and the data of local terminal are modulated into number According to bag, the size of each packet is no more than the data volume that carries of minimum shared cell, and data processing module 1830 is by data Wrap and sent to sending module 1860.Such as, before dispatching cycle, second user sends terminal in advance by the MAC layer data of local terminal The packet of data volume can be carried by splitting or being cascaded as no more than one minimum shared cell of size, and by this packet according to Predetermined coded system and modulation are encoded and modulated, and the size of each packet after encoding and modulating is no more than one Individual minimum shared cell carries data volume.Minimum shared cell refers to that a packet can be carried in a dispatching cycle Minimum share running time-frequency resource, dispatching cycle is the minimum time unit that authorized user carries out the transmission of packet.One most The maximum number bits for carrying data volume to carry in one minimum shared cell of small shared cell.

Detection module 1840 is used for the frequency spectrum detection time in dispatching cycle, is in the mandate frequency spectrum for detecting authorized user It is no to can be supplied to the idle subband that second user transmission terminal is used in the presence of at least one, wherein, idle subband is that second user is sent out Make arrangements for his funeral to hold and detect the subband that authorization user signal is less than threshold value, the available free subband size all same of institute, and it is each idle sub Band is more than or equal to the frequency resource shared by a minimum shared cell, and detection module 1850 closes testing result to mapping It is that determining module 1850 is sent.Specifically, the frequency spectrum detection time that detection module 1840 was used in dispatching cycle is used authorizing The signal energy of each subband at family is detected, to determine whether subband is occupied；And be more than in the signal energy of subband or Equal to threshold value, determine that subband is occupied；And when the signal energy of subband is less than threshold value, determine that subband does not have occupied, and When all subbands are all occupied, it is determined that sending the idle subband that terminal is used in the absence of can be supplied to second user；And When thering is subband there is no occupied, it is determined that being available for sending the idle subband that terminal is used to second user.Such as, to determine to adjust The frequency spectrum detection time spent in the cycle, first have to obtain the subframe timing that second user sends terminal.One of which subframe timing Acquisition methods are that second user sends terminal and receives the downstream signal of the base station, so as to obtain the descending sub frame for receiving base station Regularly, also, second user is sent terminal and is linked into the base station in the way of authorized user, second user sends terminal from base Stand and obtain the uplink timing advance that second user sends terminal.Then second user sends the subframe timing of terminal equal to the second use The descending sub frame timing that family sends terminal reception base station subtracts the uplink timing advance that second user sends terminal.Or, the Two users receive the downstream signal of the base station, so as to obtain the descending sub frame timing for receiving base station, second user sends terminal Using subframe timing of the base station down subframe timing as second user.

Mapping relations determining module 1850 is used to can be supplied to the sky that second user transmission terminal is used in the presence of at least one During not busy subband, it is determined that the mapping relations of idle subband and packet, and mapping relations are sent to sending module 1860.

Specifically, mapping relations determining module 1850 is additionally operable to select one of idle subband as transmission control information Subband, and using remaining idle subband as the subband for transmission packet, and determine packet with for transmitting data The mapping relations of the idle subband of bag.

Judging unit 1851 is used to judge whether the quantity for being used to transmit the idle subband of user data package is less than number of users According to the quantity of bag, judging unit 1851 will determine that result is sent to mapping relations determining unit 1853.Map unit 1853 is used for Judged result is received, and when being less than the quantity of the user data package for transmitting the idle number of sub-bands of user data package, Selection is less than or equal to be used to transmit the user data package of the idle number of sub-bands of user data package from all customer data bag, often One packet, which is mapped to one, is used for the idle subband of transmission packet；And, in the free time for transmitting user data package When number of sub-bands is more than or equal to the quantity of user data package, selection etc. from all idle subbands for transmission packet In the idle subband for data packet number, each packet is mapped to the idle subband selected by one.

Such as, if there is the minimum shared cell of Equations of The Second Kind, the quantity for the idle subband of transmission packet is equal to inspection The quantity of the idle subband measured；If there is no the minimum shared cell of Equations of The Second Kind, the idle subband for transmission packet Quantity is equal to the idle sub-band number detected and subtracts one.The selection of second user terminal is less than or equal to free time for transmission packet Packet with number is used for the transmission of this dispatching cycle.

Selection is less than or equal to the use for the idle number of sub-bands for being used to transmit user data package from all customer data bag The system of selection of user data bag is if there is the minimum shared cell of Equations of The Second Kind, then to select one and be less than or equal to Equations of The Second Kind The user data package that minimum shared cell carries data volume is used in the transmission of Equations of The Second Kind shared cell；Then from remaining users number Be equal to (idle number of sub-bands -1) individual user data package according to bag selection, the systems of selection of these user data packages can be according to Transmission priority select, for example select transmission priority highest (idle number of sub-bands -1) user data package, or according to The arrival physical layer time of user data bag, selects (idle number of sub-bands -1) the individual user data package reached earliest；If do not deposited In the minimum shared cell of Equations of The Second Kind, then (idle number of sub-bands -1) individual user data package is selected from all packets, these use The system of selection of user data bag can be selected according to transmission priority, for example, select transmission priority highest (idle subband Quantity -1) user data package, or according to the arrival physical layer time of user data package, select (the idle subband reached earliest Quantity -1) individual user data package.

Second user terminal selects an idle subband as the subband of transmission control information first.Remaining subband is used to pass Defeated user data package.The method that an idle subband is selected as the subband of transmission control information, specifically, selection first Individual idle subband is used as transmission control information as the subband for transmitting control information, or the minimum idle subband of selection energy Subband, either selects last idle subband as the subband of transmission control information or selects near centre frequency One idle subband is used as the subband for transmitting control information.

During mapping, the quantity if there is the minimum shared cell of Equations of The Second Kind, and user data package is equal to idle number of sub-bands. Second user sends terminal and selects one of them to be not more than the minimum shared cell of Equations of The Second Kind with carrying ground data volume data first Bag is mapped to the remainder of the idle subband of transmission control information, and remaining each user data package is mapped to an idle son Band.Quantity if there is the minimum shared cell of Equations of The Second Kind, and user data package is less than idle number of sub-bands.Second user is sent Terminal selects one of them to be not more than the minimum shared cell of Equations of The Second Kind first, and packet is mapped to transmission with carrying ground data volume The remainder of the idle subband of control information, reselection is equal to the idle subband of remaining user data package quantity, and remaining is every Individual user data package is sequentially mapped to selected idle subband.

Also referring to Fig. 9, show a case that packet being mapped to after idle subband in figure.As shown in figure 9, one In individual dispatching cycle, the mandate frequency spectrum of authorized user includes 11 subbands, including：5 unavailable subbands and 6 free time Subband.Second user sends terminal and selects first idle subband in 6 idle subbands to be used to transmit control information first, remains The idle subband of remaining 5 is used to transmit user data package.If user data package quantity is 3, then energy is selected from 5 idle subbands 3 minimum idle subbands of amount are used to transmit user data package.Wherein, unavailable subband is except idle son in authorized user's frequency spectrum Other subbands outside band, are included in the busy subband that step S207 is detected, and can not possibly be used in authorized user's frequency spectrum The shared subband of second user, such as partly or completely with transmission PUCCH frequency resource.

Mapping relations determining module 1850 is additionally operable to the mapping according to packet and the idle subband for transmission packet Relation, generates control information, wherein, control information is used to indicate which subband is used for transmission packet.Such as, use is being determined After the mapping relations of user data bag and idle subband, second user sends mapping of the terminal according to user data package and idle subband Relation, generates control information, control information, which is included, to be used to represent which subband carries the information of user data package, one of which Method for expressing is to indicate whether some subband has map user packet with 1 bit respectively, represents not reflect if " 0 " User data package is penetrated, then " 1 " represents to have mapped user data package.By taking Fig. 9 as an example, totally 11 subbands, with 11 bit datas come table Show mapping relations, then the control information generated according to Fig. 9 mapping relations is：00101001000.

Mapping relations determining module 1850, which is additionally operable to control information being modulated according to predefined form, is encoded to control Information physical layer data bag processed, and in the frequency spectrum share time of dispatching cycle, be mapped to for transmit the subband of control information with Sent to opposite end.Such as, second user sends terminal after generation control information, by control information according to pre-defined form Mode is modulated and encoded.Free time of the size no more than transmission control information of control information packet after modulation and coding The data volume that subband can be carried.

The transmission means of one of which control information is by control information as other packets, to be reflected after modulating-coding Be mapped to for transmit control information idle subband in carrying data message RE.As packet, in this manner, It is divided into the RE of carrying data message and the RE of carrying reference signal for transmitting the idle subband of control information.Control after modulation Information MAP carries the RE of data message into the idle subband for transmitting control information, and reference signal is mapped to carrying reference The RE of signal.The RE of data is carried in idle subband for transmitting control information and the RE of carrying reference signal arranges in advance, Assuming that including 2RB for transmitting the idle subband of control information, first RB is used for carrying reference signal, and second RB is used for holding Control information data are carried, referring to Figure 10, or, with several preceding symbols carry reference signals, rear several symbols carries control Information data, participates in Figure 11, or, evenly distribute several symbols and be used for carrying reference signal, remaining symbols carry control letter Data are ceased, referring to Figure 12.

Assuming that authorized user's frequency spectrum is divided into 25 subbands, each subband is indicated whether by second user with 1 bit Send terminal can use, then have 25 bits, and assume that control information includes the modulation coding mode of packet, modulation coding mode Represented with 5 bits, then control information has 30 bits, along with 16 bit cyclic redundancy CRC, have 46 bits.46 Bit information is converted into corresponding control information packet according to the design method of the idle subband for transmitting control information. It is assumed that the frequency spectrum share time is 11 symbols, the idle subband size for transmitting control information is 2RB, wherein, there are 3 symbols For transmitting reference information, then be used for carrying in the idle subband for transmitting control information the RE of control information data for 24 × 11-23 × 3=192.Control information is modulated using QPSK, then can carry 384 bits altogether.The control information warp of 46 bits It is 384 bits to cross through-rate matching after 1/3 tail biting convolutional encoding, is changed into 192 modulation datas after then being modulated through QPSK, adjusts Data after system are respectively mapped to transfer out on 192 RE of control information.

Transmitting element 1860 is used for received data packet and the mapping relations, and in the frequency spectrum share of dispatching cycle Between, packet is mapped to corresponding idle subband according to identified mapping relations, sent to opposite end, wherein, a data Bag is mapped to an idle subband.

Moreover, sending module 1860 also includes frequency hopping unit, frequency hopping unit is used for the frequency-hopping mode communication in subframe In the case of, according to identified mapping relations by institute in the first time slot of the frequency spectrum share time in a dispatching cycle State control information and packet is mapped to corresponding idle subband and sent to the opposite end, in the second time slot by the packet The corresponding idle subband that is mapped to determined by first time slot after the frequency hopping corresponding to idle subband and to the opposite end Send.

Such as, second user sends terminal and is linked into authorized user's network with authorization, and the system from serving cell is wide Broadcast in message, obtain the cell and whether employ frequency hopping in subframe, and frequency hopping parameter.Specifically, for LTE, the Two users send terminal and are linked into cellular network in authorized user's mode, from the system information block message of serving cell, solve thing Uplink Shared Channel common configuration parameter (PUSCH-ConfigCommon) is managed, whether the user for obtaining cellular basestation uses subframe The parameter (intra-subframe hopping) of interior frequency hopping.Further, Physical Uplink Shared Channel frequency hopping can also be obtained Offset (pusch-HoppingOffset).If the authorized user that second user transmission terminal is shared is employed in subframe Frequency hopping, then in preceding 1 time slot (preceding 0.5ms) of authorized user's dispatching cycle, second user sends terminal data bag according to above-mentioned Mapping relations determined by step are mapped to corresponding idle subband, in second time slot of authorized user's dispatching cycle, The idle subband of one time slot, respectively according to the pattern of frequency hopping in subframe, corresponds to frequency hopping subband in corresponding subframe, second uses Family sends second time slot of the terminal data in authorized user's dispatching cycle, be respectively mapped to idle subband in the first time slot by According on the idle subband after frequency hop pattern frequency hopping.Because authorized user employs frequency hopping in subframe, authorized user is in the first time slot Shared frequency spectrum can be according to fixed frequency hop pattern in the second time slot frequency hopping to new frequency.Therefore, accordingly, idle subband Also frequency hopping can be carried out according to frequency hop pattern.By taking Figure 15 as an example, second user sends first time slot of the terminal in dispatching cycle and examined 6 idle subbands, respectively subband 3,4,6,9,10,11 are measured, are used for transmitting control wherein first idle subband is subband 3 Information, remaining 5 idle subbands carry 1~packet of packet 5 respectively.In subframe during frequency hopping, it is assumed that frequency-hopping mode is to follow Ring moves down 6 subbands, then the subband after the correspondence of subband 3,4,6,9,10,11 frequency hopping is 9,10,12,3,4,5.Then in dispatching cycle First time slot, be mapped to subband 6 for transmitting the idle subband of control information, 1~packet of packet 5 is respectively mapped to Subband 4,6,9,10,11, in second time slot of dispatching cycle, the idle subband for transmitting control information is mapped to subband 9, 1~packet of packet 5 is respectively mapped to subband 10,12,3,4,5.Or, if authorized user employs frequency hopping in subframe, Can also be further, it will be frequency spectrum perception and data between being changed to dispatching cycle at the beginning of 1 time slot (0.5ms), each time slot Processing time, for first time slot, the time terminated from data processing time to the first time slot is the frequency spectrum share time, for Second time slot, is the frequency spectrum share time from data processing time to the Sounding sign-on times.

Refering to Figure 19, Figure 19 is the structural representation of the embodiment of the application second user receiving terminal one.Second user Receiving terminal includes：Receiving module, receiving module is used to receive second user transmission terminal in the frequency spectrum share time, utilizes mandate Packet transmitted by the idle subband of frequency spectrum, wherein, the packet includes control information packet and user data package.

Specifically, receiving module includes：Control information receiving module 1910 and user data receiving module 1920.Control letter Breath receiving module 1910 is used to receive second user transmission terminal in the frequency spectrum share time, utilizes the idle subband institute for authorizing frequency spectrum The control information packet of transmission；User data receiving module 1920 is used to receive second user transmission terminal in frequency spectrum share Between, utilize the user data package authorized transmitted by the idle subband of frequency spectrum.

Search unit 1911 is used to scan in subband successively in the mandate frequency spectrum of authorized user, to be used for The idle subband of control information is transmitted, search unit 1911 sends search result to control information demodulating and decoding unit 1913. Such as, second user receiving terminal, (such as can be by subband according to the subband coding rule arranged in advance with second user transmission terminal Numbered from high to low according to frequency, either number or subband is compiled from centre frequency to both sides etc. from low to high Number), the subband of control information is transmitted from most probable successively, according to the son of subband coding rule, successively search transmission control information Band.If agreement second user sends terminal since low frequency, control information is mapped to first idle subband with to the Two user's receiving terminals are sent.Then accordingly subband is numbered from low frequency to high-frequency for second user receiving terminal, then Subband is scanned for according to the order of numbering.

Control information demodulating and decoding unit 1913 is used to receive the search result, and to the sky for transmitting control information Control information packet in not busy subband is demodulated decoding, to obtain control information, and transmission user is obtained according to control information The subband of packet, and the sub-band information for transmitting user data package is obtained to the control information of user data receiving module 1920 Unit 1921 is sent.Specifically, control information demodulating and decoding unit 1913 includes：Correlation unit, the first judging unit and Two judging units；Correlation unit is used for the size and reference signal transmission of the idle subband according to predefined transmission control information Rule, local reference signal reference signal position progress corresponding to the subband received is related, and the correlation unit is by phase The peak value of pass is sent to first judging unit；First judging unit receives the related peak value, and judges the peak of correlation Whether value is more than threshold value, and when related peak value is more than threshold value, decoding is demodulated to the data in subband, to obtain subband Interior data, first judging unit sends the data in the subband to second judging unit；Second judges single Member receive subband in data, judge whether the data in subband effective, and the data validation in subband it is effective when, by subband Interior data are used as control information.Such as, subband size and control information reference signal transmission rule are transmitted according to control information, It is related to the reception signal for detecting subband with local reference signal, if relevant peaks are more than threshold value, according to control information data Bag mapping ruler, demodulates the data in the subband, if demodulated decoded data validation is effective control information, Think to have searched control information, the subband is control information subband.The confirmation effective method of data, specifically, decoding As a result correct, as CRC check passes through, or further, decoded result is correct and the control information that solves is in valid value range It is interior, then it is assumed that data are effective.

Control information acquiring unit 1921 is used to receive the transmission user data transmitted by control information receiving module 1910 The sub-band information of bag, and issue user data demodulating and decoding unit 1923.Such as, if control information is " 00101001000 ", Wherein, " 0 " represents that the subband is not used in transmission user data package, and " 1 " represents that the subband is used to transmit user data package, then the control Information processed represents that the 3rd subband, the 5th subband and the 8th subband are used to transmit user data package.

Demodulating and decoding is each successively according to the sub-band information of transmission user data package for user data demodulating and decoding unit 1923 Transmit user data of the user data package in the subband of user data package to obtain.Such as, as control information shows the 3rd son Band, the 5th subband and the 8th subband are used for transmission packet, then second user receiving terminal demodulation second user receiving terminal The data of 3rd subband, the 5th subband and the 8th subband, and the 3rd subband, the 5th subband and the 8th subband are demodulated respectively Data decoding afterwards, obtains the decoded result of three packets.

Refering to Figure 20, Figure 20 is the structural representation that the application second user sends terminal a further embodiment.This implementation Second user sends terminal and included in mode：Processor 2010, emitter 2020 and memory 2030.Wherein, processor 2010 connect emitter 2020 and memory 2030 respectively.

Processor 2010 is used to partly or entirely be divided at least one subband in the mandate frequency spectrum of authorized user, often Individual subband it is equal in magnitude, before dispatching cycle, the data of local terminal are modulated into packet, the size of each packet is no more than Minimum shared cell carries data volume, wherein, dispatching cycle is carries out the minimum time unit of a packet transmission； In frequency spectrum detection time in dispatching cycle, the mandate frequency spectrum for detecting authorized user the second use is can be supplied to the presence or absence of at least one Family sends the idle subband that terminal is used, wherein, the idle subband is the subband that authorization user signal is less than threshold value, and often Individual idle subband is more than or equal to the frequency resource shared by a minimum shared cell；If there is at least one idle son Band, it is determined that the mapping relations of the idle subband and the packet.

The emitter 2020 is used for frequency spectrum share time in the dispatching cycle, by the packet according to really Fixed mapping relations are mapped to corresponding idle subband, to send the packet to opposite end by the idle subband.

The memory 2030 is used to store routine and related data.

Specifically, the dispatching cycle of authorized user is what authorized user's system was previously set, carries out a packet transmission Minimum time unit, i.e., the minimum time of one complete data packet transmission.Such as, it is mutual in 3GPP LTE systems and Worldwide Interoperability for Microwave Couple into (WiMAX, Worldwide Interoperability for Microwave Access) system, dispatching cycle For 1 subframe, the subframe lengths of 3GPP LTE mono- are 1 millisecond, and 3GPP LTE dispatching cycle is 1 millisecond.Second user sends terminal It is determined that after the mandate frequency spectrum of shared 3GPP LTE systems, the scheduling week for obtaining authorized user is set according to 3GPP LTE protocols Phase.And worldwide interoperability for microwave accesses (WiMAX, Worldwide Interoperability for Microwave Access) The subframe lengths of system can be 2 milliseconds, 2.5 milliseconds, 4 milliseconds, 5 milliseconds, 8 milliseconds, 10 milliseconds, 12.5 milliseconds, 20 milliseconds etc. Deng.The subframe lengths of WiMAX system are broadcasted by the base station in WiMAX system by downlink signaling, and second user is sent eventually Hold it is determined that after the mandate frequency spectrum of shared WiMAX system, authorized user is obtained from the downlink signaling of the base station in WiMAX system Subframe lengths, so as to obtain the dispatching cycle of WiMAX system.

The time of one dispatching cycle is divided into frequency spectrum detection time, data processing time, frequency spectrum share by processor 2010 Time and other time.Wherein, the frequency spectrum detection time is the subband occupancy situation that second user sends terminal-pair authorized user The period detected.Data processing time mainly includes frequency spectrum detecting result and handled, and generation control information and data Bag mapping relations etc..The frequency spectrum share time shares authorized user's resource to be available for second user to send terminal, with transmission packet Time.Other time second user send terminal determine without using time, for example detect (Sounding) signal time, visit Surveying signal time is used for authorized user's terminal transmission detectable signal.

Referring again to Fig. 3, in 3GPP LTE systems, the dispatching cycle of authorized user is 1 millisecond, when using ordinary cycle During prefix (CP, Cyclic Prefix), include symbol #0~#13 totally 14 symbols each dispatching cycle.Wherein, each symbol Correspondence a period of time.Second user sends terminal and determines that the time corresponding to symbol #0 is the frequency spectrum detection time, and symbol #1 institutes are right The time answered is data processing time, and the time corresponding to symbol #13 is time of the authorized user for sending detectable signal, The frequency spectrum that the symbol #13 corresponding times take is different from the frequency spectrum that the time corresponding to symbol #0~symbol #12 takes, thus place Reason device 2010 determines the symbol #2~times of #12 corresponding to totally 11 symbols as being available for the second use in LTE dispatching cycles Family sends the frequency spectrum share time that terminal is used.Or, if the time shared by the frequency spectrum detection time is shorter, processor Time corresponding to 2010 determination symbol #0 is the time and frequency spectrum detection time of data processing, and symbol #1~#12 totally 12 Time corresponding to symbol is used as the frequency spectrum share time for being available for second user transmission terminal to use in dispatching cycle, i.e. processing The symbolic number that the frequency spectrum share time that device 2010 is acquired is included is 12.If it is understood that data processing time is needed When wanting the long time, several symbols can also be taken, then during the frequency spectrum share for being available for second user transmission terminal to use more Between accordingly reduce.In another embodiment, according to extension CP, then include 12 symbols each dispatching cycle, then can be with Time corresponding to symbol #0 is used for frequency spectrum detection, the time corresponding to symbol #1 is used for data processing, symbol #2~#10 The corresponding time is that second user sends the frequency spectrum share time that terminal is used, i.e. the frequency spectrum that processor 2010 is acquired The symbolic number that the shared time is included is 9.

Processor 2010 will partly or entirely be divided at least one subband in the mandate frequency spectrum of authorized user, per height Band it is equal in magnitude, and each subband includes at least one subcarrier.Also referring to Fig. 4 and Fig. 5, processor 2010 will be awarded The partial frequency spectrum for weighing the mandate frequency spectrum of user is divided into multiple equal-sized subbands, and these subbands are that second user sends terminal The frequency spectrum resource shared in authorized user's mode.In the present embodiment, the band of subband a width of 4 resource blocks (RB, Resource Block the sub-carrier number) included, each resource block includes 12 subcarriers.Therefore, sub-carrier number=12 that subband is included × 4=48.In other embodiments, the son load that the resource block quantity and each resource block that subband is included are included The quantity of ripple can voluntarily be set according to actual needs, not enumerated herein.

It is one or more equal-sized that part or all of authorized user is authorized frequency spectrum to be divided into by the processor 2010 The sub-band division method of subband, i.e. authorized user's frequency spectrum include several subbands, each subband rising in authorized user's frequency spectrum Begin and end position, for well known to second user sends terminal and opposite end.

It is preferred that, processor 2010 by authorized user's frequency spectrum in addition to for transmitting upstream control signaling remainder frequency Compose as the authorized user's frequency spectrum resource for being available for being shared in second user mode with second user terminal.

After the sub-carrier number that the symbolic number and subband that the acquisition frequency spectrum share time of processor 2010 is included are included, it can count Calculate the available resources number of minimum shared cell.Wherein, refer to can within a dispatching cycle and a subband for minimum shared cell It is supplied to second user to send the shared running time-frequency resource number of terminal.

The available resources number for carrying data volume=minimum shared cell of minimum shared cell × order of modulation ÷ codings Speed.Thus, processor 2010 need to obtain available resources number, order of modulation and the code rate of minimum shared cell respectively.

First, processor 2010 has been obtained for the available resources number of minimum shared cell.

Secondly, processor 2010 obtains order of modulation according to the modulation system of data.Second user sends terminal and obtained Its corresponding order of modulation is may know that after modulation system.Such as：Table 1 shows the modulation order corresponding to conventional modulation system Number.Table 1 specifically is referred to, does not repeat to repeat herein.

Then, processor 2010 obtains corresponding code rate according to coded system.

Finally, processor 2010 is according to available resources number, modulation system and the coded system of a minimum shared cell Calculate obtain minimum shared cell carry data volume.

Before dispatching cycle, processor 2010 is in advance by MAC (the Media Access comprising user data of local terminal Control) no more than one minimum shared cell of size is split or be cascaded as to layer data bag can carry the packet of data volume, and This packet is encoded and modulated according to predetermined coded system and modulation, each data after encoding and modulating The size of bag carries data volume no more than minimum shared cell.Moreover, using the number of the minimum shared cell of the first kind According to the size of bag data volume can be carried no more than the minimum shared cell of the first kind；Correspondingly, using the minimum shared cell of Equations of The Second Kind The size of packet can carry data volume no more than the minimum shared cell of Equations of The Second Kind.Each dispatching cycle, at most there is one Use the packet of the minimum shared cell of Equations of The Second Kind.

Second user sends terminal after subframe timing is obtained, and according to pre-defined mode, (by taking LTE as an example, i.e. LTE is marked Time division methods defined in accurate), you can obtain the initial time that second user sends each symbol of terminal.Processor 2010 The signal energy of each subband of authorized user is detected in the period corresponding to first symbol, to determine the son Whether band is occupied.

By taking Fig. 8 as an example, processor 2010 subtracts the initial time of the first symbol CP/2 (CP half) as during starting Carve, fast Fourier transform is carried out to the signal in the system bandwidth of authorized user, extracted from the result after fast Fourier transform The signal energy of each subband.Wherein, only it can make fast Fourier transform to a symbol to obtain the signal energy situation of subband. If the energy of subband is more than the threshold value of setting, subband is shared by authorized user's terminal, conversely, then subband is not occupied With, can be used for transmit second user send terminal control information or user data.

Processor 2010 judges whether the minimum shared cell of Equations of The Second Kind, if there is the minimum shared cell of Equations of The Second Kind, As long as then detecting an idle subband, it is possible to utilize this idle subband transmission control information and user data；If no There is the minimum shared cell of Equations of The Second Kind, then at least two idle subbands can just carry out data transmission, and wherein at least one is idle Subband is used to transmit control information, and remaining idle subband is used to transmit user data.

Processor 2010 judges whether the quantity of the idle subband for transmitting user data package is less than user data package Quantity；If for transmit user data package idle number of sub-bands be less than user data package quantity, processor 2010 then from Selection is less than or equal to the user data package for the idle number of sub-bands for being used to transmit user data package in all customer data bag, often One packet, which is mapped to one, is used for the idle subband of transmission packet；If the idle subband for transmitting user data package Quantity is more than or equal to the quantity of user data package, then without any processing.

Specifically, if there is the minimum shared cell of Equations of The Second Kind, the quantity for the idle subband of transmission packet is equal to The quantity of the idle subband detected；If there is no the minimum shared cell of Equations of The Second Kind, the idle subband for transmission packet Quantity be equal to the idle sub-band number that detects and subtract one.The selection of processor 2010 is less than or equal to free time for transmission packet Packet with number is used for the transmission of this dispatching cycle.

Such as, if there is the minimum shared cell of Equations of The Second Kind, moreover, the quantity of Equations of The Second Kind minimum shared cell is 1, it is idle The quantity of subband is 4, and user data package quantity is 8, then processor 2010 selects 4 user data packages to be passed in this dispatching cycle It is defeated, wherein, if using the minimum shared cell of Equations of The Second Kind, it is necessary to which selecting one can hold no more than the minimum shared cell of Equations of The Second Kind The user data package of carrying capacity, and the user data package shares an idle subband with control information.

If there is no the minimum shared cell of Equations of The Second Kind, the quantity of idle subband is 4, and user data package quantity is 8, then locates Managing device 2010 selects 3 user data packages to be transmitted in this dispatching cycle, and remaining one idle subband is used to transmit control information.

Processor 2010 selects to be less than or equal to from all customer data bag is used for free time for transmitting user data package The system of selection of user data package with quantity is, if there is the minimum shared cell of Equations of The Second Kind, then select one be less than or The user data package for carrying data volume equal to the minimum shared cell of Equations of The Second Kind is used in the transmission of Equations of The Second Kind shared cell；Then from The selection of remaining users packet is equal to (idle number of sub-bands -1) individual user data package, the system of selection of these user data packages Can be selected according to transmission priority, for example, select transmission priority highest (idle number of sub-bands -1) user data package, Or according to the arrival physical layer time of user data package, select (idle number of sub-bands -1) the individual user data reached earliest Bag；If there is no the minimum shared cell of Equations of The Second Kind, then (idle number of sub-bands -1) individual number of users is selected from all packets According to bag, the system of selection of these user data packages can be selected according to transmission priority, for example, select transmission priority highest (idle number of sub-bands -1) user data package, or according to the arrival physical layer time of user data package, selection reaches earliest (idle number of sub-bands -1) individual user data package.

Processor 2010 selects an idle subband as the subband of transmission control information first.Remaining subband is used to transmit User data package.The method that an idle subband is selected as the subband of transmission control information, specifically, selection first Idle subband is used as the son of transmission control information as the subband for transmitting control information, or the minimum idle subband of selection energy Band, either selects last idle subband as the subband of transmission control information or selects near the one of centre frequency Individual idle subband is used as the subband for transmitting control information.

Quantity if there is the minimum shared cell of Equations of The Second Kind, and user data package is equal to idle number of sub-bands.Processor 2010 select one of them to be not more than the minimum shared cell of Equations of The Second Kind first, and packet is mapped to transmission with carrying ground data volume The remainder of the idle subband of control information, remaining each user data package is mapped to an idle subband.If there is Two classes minimum shared cell, and the quantity of user data package is less than idle number of sub-bands.Processor 2010 selects wherein one first Packet is mapped to the idle subband for transmitting control information to the individual minimum shared cell of no more than Equations of The Second Kind with carrying ground data volume Remainder, reselection is equal to the idle subband of remaining user data package quantity, and remaining each user data package reflects successively It is mapped to selected idle subband.

If there is no the quantity of the minimum shared cell of Equations of The Second Kind, and user data package use is subtracted equal to idle number of sub-bands It is equal to idle number of sub-bands in the idle number of sub-bands of transmission control information, the i.e. quantity of user data package and subtracts one.Processor 2010 after it have selected the subband for transmitting control information, and remaining each user data package is mapped to an idle subband.

If there is no the quantity of the minimum shared cell of Equations of The Second Kind, and user data package use is subtracted less than idle number of sub-bands It is less than idle number of sub-bands in the idle number of sub-bands of transmission control information, the i.e. quantity of user data package and subtracts one.Processor 2010 after it have selected the subband for transmitting control information, and selection is equal to user data package quantity in remaining idle subband Idle subband, and each user data package is sequentially mapped to selected idle subband.

Also referring to Fig. 9, show a case that packet being mapped to after idle subband in figure.As shown in figure 9, one In individual dispatching cycle, the mandate frequency spectrum of authorized user includes 11 subbands, including：5 unavailable subbands and 6 free time Subband.Processor 2010 selects first idle subband in 6 idle subbands to be used to transmit control information, remaining 5 first Individual idle subband is used to transmit user data package.If user data package quantity is 3, then energy is selected most from 5 idle subbands The idle subband of small 3 is used to transmit user data package.Wherein, unavailable subband is that authorized user's frequency spectrum is interior in addition to idle subband Other subbands, including the busy subband detected, and can not possibly to be used for second user in authorized user's frequency spectrum shared Subband, such as partly or completely with transmitting physical ascending control channel (PUCCH) frequency resource.

After the mapping relations of user data package and idle subband are determined, processor 2010 is according to user data package and sky The mapping relations of not busy subband, generate control information, control information, which is included, to be used to represent which subband carries user data package Information, one of which method for expressing is to indicate whether some subband has map user packet with 1 bit respectively, if " 0 " represents do not have map user packet, then " 1 " represents to have mapped user data package.By taking Fig. 9 as an example, totally 11 subbands, with 11 Bit data represents mapping relations, then the control information generated according to Fig. 9 mapping relations is：00101001000.

Further, processor 2010 is after generation control information, by control information according to pre-defined format mode It is modulated and encodes.Idle subband of the size no more than transmission control information of control information packet after modulation and coding The data volume that can be carried.

The modulation coding mode of control information is what system was arranged in advance, such as modulation system is modulated for QPSK, coding staff Formula is 1/3 tail-biting convolutional code.Processor 2010 is believed according to the carrying control for being used to transmit in the idle subband of control information first The RE of breath and the RE of carrying reference signal agreement, calculate the carrying control information of idle subband for transmitting control information RE size, will cause control information data to fill up for transmitting control after the control information data through-rate matching after coding The RE of carrying control information in the idle subband of information.

Further, processor 2010 is linked into authorized user's network with authorization, from the system broadcasts of serving cell In message, obtain the cell and whether employ frequency hopping in subframe, and frequency hopping parameter.Specifically, for LTE, processing Device 2010 is linked into cellular network in authorized user's mode, from the system information block message of serving cell, and solution physical uplink is total to Channel common configuration parameter (PUSCH-ConfigCommon) is enjoyed, whether the user of cellular basestation is obtained using frequency hopping in subframe Parameter (intra-subframe hopping).Further, Physical Uplink Shared Channel frequency hopping shift amount can also be obtained (pusch-HoppingOffset).In with subframe in the case of frequency-hopping mode communication, the frequency spectrum in a dispatching cycle is total to Enjoy in the first time slot of time according to identified mapping relations and control information and packet are mapped to corresponding idle subband And sent to opposite end, after the frequency hopping that packet is mapped to corresponding to idle subband determined by the first time slot by the second time slot Corresponding idle subband is simultaneously sent to opposite end.Specifically, if the authorized user that processor 2010 is shared is employed in subframe Frequency hopping, then in preceding 1 time slot (preceding 0.5ms) of authorized user's dispatching cycle, processor 2010 is by packet by the mapping determined Relationship map is to corresponding idle subband, in second time slot of authorized user's dispatching cycle, in free time of first time slot Band, respectively according to the pattern of frequency hopping in subframe, corresponds to frequency hopping subband in corresponding subframe, processor 2010 is awarding packet Second time slot of user's dispatching cycle is weighed, is respectively mapped to after the idle subband of the first time slot is according to frequency hop pattern frequency hopping On idle subband.Because authorized user employs frequency hopping in subframe, authorized user can be according in the frequency spectrum shared by the first time slot Fixed frequency hop pattern is in the second time slot frequency hopping to new frequency.Therefore, accordingly, idle subband can also enter according to frequency hop pattern Row frequency hopping.By taking Figure 15 as an example, second user sends first time slot of the terminal in dispatching cycle and detects 6 idle subbands, point Not Wei subband 3,4,6,9,10,11, be used for transmitting control information, remaining 5 idle sons wherein first idle subband is subband 3 Band carries 1~packet of packet 5 respectively.In subframe during frequency hopping, it is assumed that frequency-hopping mode is that circulation moves down 6 subbands, then sub It is 9,10,12,3,4,5 with the subband after 3,4,6,9,10,11 correspondence frequency hoppings.Then in first time slot of dispatching cycle, it is used for The idle subband of transmission control information is mapped to subband 6, and 1~packet of packet 5 is respectively mapped to subband 4,6,9,10,11, In second time slot of dispatching cycle, subband 9,1~packet of packet 5 are mapped to for transmitting the idle subband of control information It is respectively mapped to subband 10,12,3,4,5.Or, can also be further if authorized user employs frequency hopping in subframe, will It is frequency spectrum perception and data processing time between being changed to dispatching cycle at the beginning of 1 time slot (0.5ms), each time slot, for first Individual time slot, the time terminated from data processing time to the first time slot is the frequency spectrum share time, for the second time slot, at data Reason time to the Sounding sign-on times are the frequency spectrum share time.

Refering to Figure 21, Figure 21 is the structural representation of another embodiment of the application second user receiving terminal.This implementation The second user receiving terminal of mode includes：Receiver 2110, processor 2120 and memory 2130.Wherein, processor 2120 connect receiver 2110 and memory 2130 respectively.

Receiver 2110 is used to receive second user transmission terminal in the frequency spectrum share time, utilizes free time for authorizing frequency spectrum With transmitted packet, wherein, packet includes control information packet and user data package.Specifically, receiver 2110 are used to scan in subband successively in the mandate frequency spectrum of authorized user, to obtain the sky for being used for transmitting control information Not busy subband, receiver 2110 sends search result to processor 2120.Such as, receiver 2110 is sent according to second user Subband coding rule that terminal is arranged in advance (such as subband can from high to low be numbered according to frequency, or numbered from low to high, or Person subband is numbered from centre frequency to both sides etc.), the subband of control information is transmitted from most probable successively, according to subband The subband of coding rule, successively search transmission control information.If arranging second user sends terminal since low frequency, it will control Information MAP processed is to first idle subband to be sent to second user receiving terminal.Then second user receiving terminal is corresponding from low Subband is numbered to high-frequency for frequency, and then subband is scanned for according to the order of numbering.

The son of search transmission control information in the subband of the receiver 2110 successively in the mandate frequency spectrum of authorized user Band, further for second user first determines whether whether first subband has control information transmission according to subband coding rule, such as Fruit has, then this subband is transmits the subband of control information, if it is not, judging whether second subband has control information biography Defeated, the rest may be inferred, until finding the subband of transmission control information, or has searched for all subbands.

Processor 2120 is used to receive the search result, and to the control in the idle subband for transmitting control information Information packet is demodulated decoding, to obtain control information, and the subband for transmitting user data package is obtained according to control information.

Specifically, processor 2120 is used for according to the size of the idle subband of predefined transmission control information and with reference to letter Number transmission rule, local reference signal reference signal position progress corresponding to the subband received is related, and judge correlation Peak value whether be more than threshold value, and when related peak value is more than threshold value, decoding is demodulated to the data in subband, with acquisition Data in subband, then, processor 2120 judge whether the data in subband are effective, and the data validation in subband is effective When, it regard the data in subband as control information.Such as, subband size and control information reference signal are transmitted according to control information Transmission rule, it is related to the reception signal for detecting subband with local reference signal, if relevant peaks are more than threshold value, according to control Information packet mapping ruler, demodulates the data in the subband, if demodulated decoded data validation is effective control Information processed, then it is assumed that searched control information, the subband is control information subband.The confirmation effective method of data, tool Body is, decoded result is correct, as CRC check passes through, or further, and decoded result is correct and control information that solve is having In the range of valid value, then it is assumed that data are effective.

Processor 2120 is for according to the sub-band information of transmission user data package, demodulating and decoding each to transmit number of users successively User data according to the user data package in the subband of bag to obtain.Such as, if control information is " 00101001000 ", its In, " 0 " represents that the subband is not used in transmission user data package, and " 1 " represents that the subband is used to transmit user data package, then the control Information represents that the 3rd subband, the 5th subband and the 8th subband are used to transmit user data package.The demodulation of processor 2,120 second is used The data of the subband of family receiving terminal the 3rd, the 5th subband and the 8th subband, and respectively to the 3rd subband, the 5th subband and Data decoding after the demodulation of eight subbands, obtains the decoded result of three packets.

Memory 2130 is used to store routine and related data.

A kind of frequency spectrum share system of also offer based on above-mentioned second user terminal and the embodiment of receiving terminal the application one System, spectra sharing system includes：Terminal and at least one second user receiving terminal are sent including at least one second user, Wherein, second user sends terminal and can share the mandate frequency spectrum of the authorized user to communicate with second user receiving terminal.

Above it is appreciated that being modulated and compiling by the way that packet can be carried into data volume according to minimum shared cell in advance Code, saves the data processing time for carrying out data segmentation modulating-coding etc. again after the frequency spectrum share time is detected, so as to Directly to be mapped after idle subband is detected packet, without waiting for tediously long data processing time, therefore, realize The process of frequency spectrum detection and frequency spectrum share is completed within the shorter dispatching cycle, enables to second user terminal can be with Realize and detected within a dispatching cycle and using the uplink frequency spectrum resource of the fast-changing authorized user of frequency spectrum, effectively improve frequency The utilization rate of spectrum.On the other hand, packet of the present invention is can to carry data volume according to minimum shared cell to be modulated and encode, And minimum shared cell is set to no more than one idle subband size on frequency domain so that shift to an earlier date ready packet energy The idle subband detected is enough adapted to, is not in the problem of packet data that are more than idle subband and cause can not be transmitted, When minimum shared cell is equal to an idle subband size on frequency domain, packet is equal to the size of idle subband, It is not in then the idle band waste problem that packet is less than caused by idle subband.

The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected to realize present embodiment scheme according to the actual needs Purpose.

In addition, each functional unit in the application each embodiment can be integrated in a processing unit, also may be used To be that unit is individually physically present, can also two or more units it is integrated in a unit.It is above-mentioned integrated Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.

If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used When, it can be stored in a computer read/write memory medium.Understood based on such, the technical scheme of the application is substantially The part contributed in other words to prior art or all or part of the technical scheme can be in the form of software products Embody, the computer software product is stored in a storage medium, including some instructions are to cause a computer Equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the application each The all or part of step of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD Etc. it is various can be with the medium of store program codes.

Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, is included within the scope of the present invention.

Claims

1. a kind of uplink frequency spectrum resource sharing method, it is characterised in that comprise the following steps：

At least one subband will be partly or entirely divided into the mandate frequency spectrum of authorized user, each subband it is equal in magnitude；

Before dispatching cycle, the data of local terminal are modulated into packet, the size of each packet is no more than minimum shared cell Carry data volume, wherein, dispatching cycle is carries out the minimum time unit of packet transmission；

It is can be supplied in frequency spectrum detection time in dispatching cycle, the mandate frequency spectrum for detecting authorized user with the presence or absence of at least one Second user sends the idle subband that terminal is used, wherein, the idle subband is the subband that authorization user signal is less than threshold value, And each free time subband is more than or equal to the frequency resource shared by a minimum shared cell；

If there is at least one idle subband, it is determined that the mapping relations of the idle subband and the packet, and in institute The frequency spectrum share time in dispatching cycle is stated, the packet is mapped to corresponding idle son according to identified mapping relations Band, to send the packet to opposite end by the idle subband.

2. according to the method described in claim 1, it is characterised in that it is described the step of the data of local terminal are modulated into packet it Before include：

Calculate the minimum shared cell carries data volume, wherein, the minimum shared cell carry data volume= The available resources number of minimum shared cell × order of modulation ÷ code rates.

3. method according to claim 2, it is characterised in that the calculating minimum shared cell carries data volume Comprise the following steps before step：

Obtain the symbolic number that the frequency spectrum share time included；

Obtain the sub-carrier number that the subband is included；

Calculate the available resources number that the minimum shared cell is included, the available resources number that the minimum shared cell is included The number of resources included equal to the minimum shared cell subtracts the number of resources for transmission of reference signals, if described minimum shared Unit is the minimum shared cell of the first kind, then the number of resources that the minimum shared cell of the first kind is included is equal to the subband institute Comprising the product of symbolic number that is included of sub-carrier number and the frequency spectrum share time；If the minimum shared cell is second Class minimum shared cell, the then number of resources that the minimum shared cell of the Equations of The Second Kind is included is equal to the son load that the subband is included The product for the symbolic number that the difference of the sub-carrier number of wave number and transmission control information is included with the frequency spectrum share time.

4. according to the method described in claim 1, it is characterised in that whether there is in the mandate frequency spectrum of the detection authorized user At least one can be supplied to second user send terminal use idle subband the step of include：

The frequency spectrum detection time in the dispatching cycle detects to the occupancy situation of each subband of the authorized user, The idle subband that the second user transmission terminal is used is can be supplied to determine whether there is；

It is all occupied if all of the subband, then free time that terminal is used is sent in the absence of can be supplied to the second user Band；If subband does not have occupied, then it is available for sending the idle subband that terminal is used to the second user.

5. method according to claim 4, it is characterised in that the frequency spectrum detection time pair in the dispatching cycle The occupancy situation of each subband of the authorized user, which carries out detecting step, to be included：

The frequency spectrum detection time in the dispatching cycle detects to the signal energy of each subband of the authorized user, To determine whether the subband is occupied；

If the signal energy of the subband is more than or equal to threshold value, the subband is occupied；If the signal of the subband Energy is less than threshold value, then the subband is not occupied.

6. according to the method described in claim 1, it is characterised in that the mapping relations bag for determining idle subband and packet Include：

One of idle subband is selected as the idle subband of transmission control information, and using remaining idle subband as passing The idle subband of transmission of data bag；

Determine the mapping relations of packet and the idle subband for transmission packet.

7. method according to claim 6, it is characterised in that the determination packet and the free time for transmission packet The mapping relations of subband include：

Judge whether the quantity of the idle subband for transmitting user data package is less than the quantity of the user data package；

If being less than the quantity of the user data package for transmitting the idle number of sub-bands of user data package, from all users Selection is less than or equal to the user data package for the idle number of sub-bands for being used to transmit user data package, each data in packet Bag, which is mapped to one, is used for the idle subband of transmission packet；If be more than for the idle number of sub-bands for transmitting user data package Or equal to the quantity of user data package, then selection is equal to and is used for packet from all idle subbands for transmission packet The idle subband of quantity, each packet is mapped to the idle subband selected by one.

8. method according to claim 6, it is characterised in that the determination packet and the free time for transmission packet Comprise the following steps after the mapping relations step of subband：

According to the mapping relations of packet and the idle subband for transmission packet, control information is generated, wherein, the control Information is used to indicate which subband is used for transmission packet.

9. method according to claim 8, it is characterised in that include following step after the generation control information step Suddenly：

The control information is modulated according to predefined form and is encoded to control information physical layer data bag, and described The frequency spectrum share time of dispatching cycle, the subband for transmitting control information is mapped to, to be sent to the opposite end.

10. method according to claim 6, it is characterised in that the frequency spectrum share time in dispatching cycle, by institute State packet and be mapped to corresponding idle subband according to identified mapping relations, to be sent by the idle subband to opposite end The step of packet, includes：

In with subframe in the case of frequency-hopping mode communication, frequency spectrum share time in a dispatching cycle first when The control information and packet are mapped to corresponding idle subband and to described right according to identified mapping relations in gap End is sent, after the frequency hopping that the packet is mapped to corresponding to idle subband determined by first time slot by the second time slot Corresponding idle subband and to the opposite end send.

11. a kind of uplink frequency spectrum resource sharing method, it is characterised in that comprise the following steps：

Receive second user and send terminal in the frequency spectrum share time, using the packet authorized transmitted by the idle subband of frequency spectrum, Wherein, the packet includes control information packet and user data package, and this step is specifically included：

Scanned for successively in the subband in the mandate frequency spectrum of authorized user, be used to transmit control information packet to obtain Idle subband；

It is used to transmit the control information packet in the idle subband of control information packet and be demodulated decoding to described, to obtain Obtain control information；

The subband of transmission user data package is obtained according to the control information, and is obtained from the subband of the transmission user data package The user data package.

12. method according to claim 11, it is characterised in that described to be used to transmit control information packet to described Control information packet in idle subband is demodulated decoding, to comprise the following steps before obtaining control information step：

According to it is predefined transmission control information idle subband size and reference signal transmission rule, local reference signal with The corresponding reference signal position of subband received carries out related；

Judge whether the peak value of correlation is more than threshold value, if related peak value is more than threshold value, to the packet in the subband Decoding is demodulated, to obtain the data in the subband；

Judge whether the data in the subband are effective, if the data validation in the subband is effectively, by the subband Data be used as control information.

13. a kind of second user sends terminal, it is characterised in that including：Division module, data processing module, detection module, reflect Relationship determination module and sending module are penetrated,

The division module is used to partly or entirely be divided at least one subband in the mandate frequency spectrum of authorized user, each Subband it is equal in magnitude, the division module sends division result to detection module；

The data processing module is used to receive the division result, and before dispatching cycle, the data of local terminal are modulated into data Bag, the size of each packet carries data volume no more than minimum shared cell, wherein, dispatching cycle is number of progress According to the minimum time unit of bag transmission, the data processing module sends the packet to sending module；

Whether the detection module is used for the frequency spectrum detection time in dispatching cycle, deposited in the mandate frequency spectrum for detecting authorized user Second user, which is can be supplied to, at least one sends the idle subband that terminal is used, wherein, the idle subband is believed for authorized user Number it is less than the subband of threshold value, and each idle subband is more than or equal to the frequency money shared by a minimum shared cell Source, the detection module sends testing result to the mapping relations determining module；

The mapping relations determining module is used to, when there is at least one idle subband, determine the idle subband and the number Sent according to the mapping relations of bag, and by the mapping relations to the sending module；

The sending module is used to receive the packet and the mapping relations, and in the frequency spectrum share of the dispatching cycle Time, the packet is mapped to corresponding idle subband according to identified mapping relations, to pass through the idle subband The packet is sent to opposite end.

14. second user according to claim 13 sends terminal, it is characterised in that the terminal includes computing module, What the computing module was used to calculating the minimum shared cell carries data volume, wherein, the minimum shared cell can Carry available resources number × order of modulation ÷ code rates of data volume=minimum shared cell.

15. second user according to claim 14 sends terminal, it is characterised in that the computing module includes：Symbol Acquiring unit, subcarrier acquiring unit and computing unit；

The symbol acquiring unit is used to obtain the symbolic number that the frequency spectrum share time included, and the symbol acquiring unit will The symbolic number that the frequency spectrum share time is included is sent to the computing unit；

The subcarrier acquiring unit is used to obtain the sub-carrier number that the subband is included；

The computing unit is used to receive the symbolic number that the frequency spectrum share time included and the son that the subband is included Carrier number, and the available resources number that the minimum shared cell is included is calculated, it is available that the minimum shared cell is included Number of resources is equal to the number of resources that is included of the minimum shared cell and subtracts number of resources for transmission of reference signals, if it is described most Small shared cell is the minimum shared cell of the first kind, then the number of resources that the minimum shared cell of the first kind is included is equal to described The product for the symbolic number that the sub-carrier number that subband is included is included with the frequency spectrum share time；If the minimum shared cell For the minimum shared cell of Equations of The Second Kind, then the number of resources that the minimum shared cell of the Equations of The Second Kind is included is included equal to the subband Sub-carrier number and transmit control information sub-carrier number the product of symbolic number that is included of difference and the frequency spectrum share time.

16. second user according to claim 13 sends terminal, it is characterised in that the detection module is additionally operable in institute The frequency spectrum detection time stated in dispatching cycle is detected to the occupancy situation of each subband of the authorized user, to determine to be It is no to be available for sending the idle subband that terminal is used to the second user；And when all subbands are all occupied, It is determined that sending the idle subband that terminal is used in the absence of can be supplied to the second user；And when there is subband there is no occupied, It is determined that being available for sending the idle subband that terminal is used to the second user.

17. second user according to claim 16 sends terminal, it is characterised in that the detection module is additionally operable in institute The frequency spectrum detection time stated in dispatching cycle is detected to the signal energy of each subband of the authorized user, to determine Whether occupied state subband；And it is more than or equal to threshold value in the signal energy of the subband, determine that the subband is occupied；And When the signal energy of the subband is less than threshold value, determine that the subband is not occupied.

18. second user according to claim 13 sends terminal, it is characterised in that the mapping relations determining module is also For selecting one of idle subband as the idle subband of transmission control information, and using remaining idle subband as passing The idle subband of transmission of data bag, and determine the mapping relations of packet and the idle subband for transmission packet.

19. second user according to claim 18 sends terminal, it is characterised in that the mapping relations determining module bag Include：Judging unit and mapping relations determining unit；

The judging unit is used to judge whether the quantity for being used to transmit the idle subband of user data package is less than the number of users According to the quantity of bag, the judging unit will determine that result is sent to the mapping relations determining unit；

The mapping relations determining unit is used to receive the judged result, and in the idle subband for transmitting user data package When quantity is less than the quantity of the user data package, selection is less than or equal to be used to transmit user data from all customer data bag The user data package of the idle number of sub-bands of bag, each packet, which is mapped to one, is used for the idle subband of transmission packet； And, when being more than or equal to the quantity of user data package for transmitting the idle number of sub-bands of user data package, from all It is equal to the idle subband for data packet number for selection in the idle subband of transmission packet, each packet is mapped to Idle subband selected by one.

20. second user according to claim 18 sends terminal, it is characterised in that the mapping relations determining module is also For the mapping relations according to packet and the idle subband for transmission packet, control information is generated, wherein, the control Information is used to indicate which subband is used for transmission packet.

21. second user according to claim 20 sends terminal, it is characterised in that the mapping relations determining module is also Control information physical layer data bag is encoded to for the control information to be modulated according to predefined form, and described The frequency spectrum share time of dispatching cycle, the subband for transmitting control information is mapped to, to be sent to the opposite end.

22. second user according to claim 18 sends terminal, it is characterised in that the sending module includes frequency hopping list Member, the frequency hopping unit is used in subframe in the case of frequency-hopping mode communication, the frequency spectrum in a dispatching cycle The control information and packet are mapped to corresponding sky according to identified mapping relations in the first time slot of shared time Not busy subband is simultaneously sent to the opposite end, and the packet is mapped into idle son determined by first time slot in the second time slot Sent with the corresponding idle subband after corresponding frequency hopping and to the opposite end.

23. a kind of second user receiving terminal, it is characterised in that including：

Control information receiving module, sends terminal in the frequency spectrum share time for receiving second user, utilizes the sky for authorizing frequency spectrum Control information packet transmitted by not busy subband；

User data receiving module, terminal is sent in the frequency spectrum share time for receiving the second user, using authorizing frequency spectrum Idle subband transmitted by user data package；

The control information receiving module includes：Search unit and control information demodulating and decoding unit, the user data connect Receiving module includes：Control information acquiring unit and user data demodulating and decoding unit；

The search unit is used to scan in subband successively in the mandate frequency spectrum of authorized user, is used to transmit to obtain The idle subband of control information, the search unit sends search result to the control information demodulating and decoding unit；

The control information demodulating and decoding unit is used to receive the search result, and to the sky for being used to transmit control information Control information packet in not busy subband is demodulated decoding, to obtain control information, is transmitted according to the control information The subband of user data package, and the sub-band information of the transmission user data package is sent to the user data receiving module；

The control information acquiring unit is used for the subband for receiving the transmission user data package transmitted by control information receiving module Information, and issue user data demodulating and decoding unit；

According to the sub-band information of transmission user data package, demodulating and decoding is each transmitted the user data demodulating and decoding unit successively User data of the user data package to obtain in the subband of user data package.

24. second user receiving terminal according to claim 23, it is characterised in that the control information demodulating and decoding list Member includes：Correlation unit, the first judging unit and the second judging unit；

The correlation unit is used to be advised according to the size and reference signal transmission of the idle subband of predefined transmission control information Then, local reference signal reference signal position progress corresponding to the subband received is related, the correlation unit is by correlation Peak value sent to first judging unit；

First judging unit receives the related peak value, and judges whether the peak value of correlation is more than threshold value, and in correlation Peak value when being more than threshold value, decoding is demodulated to the data in the subband, to obtain the data in the subband, described the One judging unit sends the data in the subband to second judging unit；

Second judging unit receives the data in the subband, judges whether the data in the subband are effective, and in institute State data validation in subband it is effective when, regard the data in the subband as control information.

25. a kind of spectra sharing system, it is characterised in that including at least one second user send terminal and at least one the Two user's receiving terminals, wherein, the second user, which sends terminal, can share the mandate frequency spectrum of authorized user with described second User's receiving terminal is communicated, and the second user sends terminal and sends terminal for the second user as described in claim 13-22.

26. system according to claim 25, it is characterised in that the second user receiving terminal is such as claim Second user receiving terminal described in 23-24.