CN103813345A

CN103813345A - Uplink frequency spectrum resource sharing method, terminal and system

Info

Publication number: CN103813345A
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: 2014-05-21
Anticipated expiration: 2032-11-05
Also published as: CN103813345B

Abstract

This invention discloses an uplink frequency spectrum resource sharing method, a terminal and a system. The uplink frequency spectrum resource sharing method comprises the following steps of dividing part or all of authorized frequency spectrum in an authorized user into at least one sub-band, wherein all sizes of the sub-bands are of the same, modulating the data on a home terminal into a data package before the scheduling cycle, wherein the size of the data package is not greater than the data size that a smallest sharing unit can bear; and detecting whether at least one idle sub-band which can be provided for the usage of a second user transmission terminal exists in the authorized frequency spectrum of the authorized user, wherein each idle sub-band is greater than or equal to the frequency resource occupied by a smallest sharing unit, if yes, determining the mapping relation between the idle sub-band and the data package. The mapping relation determined by the data package is mapped to the corresponding idle sub-band so as to transmit data package through the idle sub-band in the frequency spectrum sharing time in the scheduling cycle.

Description

Uplink frequency spectrum resource is shared method, terminal and system thereof

Technical field

The application relates to wireless communication field, particularly relates to a kind of uplink frequency spectrum resource and shares method, terminal and system thereof.

Background technology

In recent years, wireless communication technology has obtained huge development, but, along with the number that uses cordless communication network is increased sharply, and the requirement of performance of wireless telecommunications networks to be improved day by day, frequency spectrum resource day is becoming tight.

It is a kind of not disturb the mode of authorized user to share the radio spectrum sharing method of authorized user frequency spectrum that prior art provides, described method is by detecting authorized user as the idle frequency spectrum of TV signal, and use authority user's idle frequency spectrum is for WiMAX access.The equipment of this communication of carrying out with the frequency spectrum that does not disturb the mode of authorized user to share authorized user is called the second user.Because TV signal transmitting power is constant, and conventionally within the longer time (several hours) frequency spectrum constant, therefore, can provide in a long time idle frequency spectrum for the second telex network.

But present inventor finds, if share the idle frequency spectrum of the cellular communication of authorizing, to have larger difficulty in long-term R & D.The downstream spectrum utilance of cellular communication is higher on the one hand, and the idle frequency spectrum in cellular downlink frequency spectrum is less, therefore be not suitable for the second telex network.Cellular communication uplink spectrum utilance is generally low compared with downstream spectrum utilance, and can better control interference, and therefore, the second telex network can be used honeycomb uplink spectrum to communicate.But because phone user's dispatching cycle is very short, such as at 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 cellular basestation subordinate's service terminal has hundreds of, tens terminals of every 1ms scheduling, the idle frequency spectrum that front 1ms detects has very large possibility occupied at next 1ms, so the idle frequency spectrum of sharing cellular communication need to complete detection and the transmission of data in 1ms.In the prior art, first the transmission of data need to determine the Radio Resource of transmission data, and then according to the Radio Resource size of transmission data and the modulation coding mode of data, determine the data package size of each transmission, and from high level obtains the packet of corresponding size, packet is encoded and modulated, and then be mapped to determined radio resource transfer and go out, the time of this process need is generally greater than 1ms, in 3GPP LTE, for the reserved time of data processing is 2ms～3ms, therefore, in the conventional mode, within the 1ms time, should complete the detection of resource, complete again processing and the transmission of carrying out packet according to the testing result of resource, infeasible.Therefore, according to prior art, sharing cellular communication with the frequency spectrum that the utmost point short time (1ms) changes, is infeasible.

Summary of the invention

The technical problem that the application mainly solves is to provide a kind of uplink frequency spectrum resource and shares method, terminal and system thereof, can make second user's transmitting terminal can share the uplink frequency spectrum resource of the authorized user changing with the utmost point short time.

For solving the problems of the technologies described above, the application on the one hand provides a kind of uplink frequency spectrum resource to share method, comprises the steps: in the mandate frequency spectrum of authorized user, to be partly or entirely divided at least one subband, the equal and opposite in direction of each subband; Before dispatching cycle, the Data Modulation of local terminal is become to packet, the size of each packet is no more than carried of the data volume of minimum shared cell, and wherein, be the minimum time unit that carries out a data packet transmission dispatching cycle; The frequency spectrum detection time in dispatching cycle, in the mandate frequency spectrum of detection authorized user, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used, wherein, described idle subband is the subband of authorization user signal lower than threshold value, and each idle subband is greater than or equal to a frequency resource that minimum shared cell is shared; If there is at least one idle subband, determine the mapping relations of described idle subband and described packet, and frequency spectrum share time in described dispatching cycle, described packet is mapped to corresponding idle subband according to determined mapping relations, to send described packet to opposite end by described idle subband.

Wherein, the described Data Modulation by local terminal becomes the step of packet to comprise before: carried of the data volume of calculating described minimum shared cell, available resources number × order of modulation ÷ code rate of wherein, carried of the data volume of described minimum shared cell=minimum shared cell.

Wherein, before the step of carried of the data volume of the minimum shared cell of described calculating, comprise the steps: to obtain the symbolic number that the described frequency spectrum share time comprises; Obtain the sub-carrier number that described subband comprises; Calculate the available resources number that described minimum shared cell comprises, the available resources number that described minimum shared cell comprises equals the number of resources that described minimum shared cell comprises and deducts the number of resources for transmission of reference signals, if the described minimum shared cell minimum shared cell that is the first kind, the number of resources that the minimum shared cell of the described first kind comprises equals the product of the symbolic number that sub-carrier number that described subband comprises and described frequency spectrum share time comprises; If the described minimum shared cell minimum shared cell that is Equations of The Second Kind, the number of resources that the minimum shared cell of described Equations of The Second Kind comprises equals the product of the symbolic number that the difference of sub-carrier number of sub-carrier number that described subband comprises and control information transmission and described frequency spectrum share time comprises.

Wherein, the step that whether exists at least one can supply with the idle subband of second user's transmitting terminal use in the mandate frequency spectrum of described detection authorized user comprises: the situation that takies of the each subband to described authorized user of the frequency spectrum detection time in described dispatching cycle detects, and can supply with to determine whether to exist the idle subband that described second user's transmitting terminal is used; If all described subbands are all occupied, do not exist and can supply with the idle subband that described second user's transmitting terminal is used; If there have subband not have to be occupied, exist and can supply with the idle subband that described second user's transmitting terminal is used.

Wherein, whether the situation that takies of the each subband of described frequency spectrum detection time in described dispatching cycle to described authorized user is carried out detecting step and is comprised: the signal energy of the each subband to described authorized user of the frequency spectrum detection time in described dispatching cycle detects, occupied to determine described subband; If the signal energy of described subband is more than or equal to threshold value, described subband is occupied; If the signal energy of described subband is less than threshold value, described subband does not have occupied.

Wherein, the mapping relations of described definite idle subband and packet comprise: select the idle subband of one of them idle subband as control information transmission, and using all the other idle subbands as the idle subband for transmitting packet; Specified data bag and the mapping relations of idle subband for transmitting packet.

Wherein, described specified data bag comprises with the mapping relations of the idle subband for transmitting packet: whether judgement is less than the quantity of described user data package for the quantity of the idle subband of transmitting user data bag; If be less than the quantity of described user data package for the idle number of sub-bands of transmitting user data bag, from all customer data bag, select to be less than or equal to the user data package for the idle number of sub-bands of transmitting user data bag, each packet is mapped to one for transmitting the idle subband of packet; If be greater than or equal to the quantity of user data package for the idle number of sub-bands of transmitting user data bag, from the idle subband of be useful on transmission packet, select to equal the idle subband for data packet number, each packet is mapped to a selected idle subband.

Wherein, described specified data bag comprises the steps: the mapping relations with the idle subband for transmitting packet according to packet afterwards with the mapping relations step of the idle subband for transmitting packet, generate control information, wherein, which subband described control information is used to indicate for transmitting packet.

Wherein, after described generation control information step, comprise the steps: that it is control information physical layer data bag that described control information is carried out to modulating-coding according to predefined form, and in frequency spectrum share time of described dispatching cycle, be mapped to the subband for control information transmission, to send to described opposite end.

Wherein, the described frequency spectrum share time in dispatching cycle, described packet is mapped to corresponding idle subband according to determined mapping relations, comprise with the step that sends described packet by described idle subband to opposite end: in subframe frequency-hopping mode communication in the situation that, in the first time slot of frequency spectrum share time in a described dispatching cycle, according to determined mapping relations, described control information and packet are mapped to corresponding idle subband and send to described opposite end, at the second time slot, described packet be mapped to the corresponding idle subband after the corresponding frequency hopping of the determined idle subband of described the first time slot and send to described opposite end.

For solving the problems of the technologies described above, the application provides another kind of uplink frequency spectrum resource to share method on the one hand, comprise the steps: to receive second user's transmitting terminal in the frequency spectrum share time, the packet that utilizes the idle subband of authorizing frequency spectrum to send, wherein, described packet comprises control information packet and user data package.

Wherein, described reception second user's transmitting terminal is in the frequency spectrum share time, the packet step of utilizing the idle subband of authorizing frequency spectrum to send comprises the steps: in the subband in the mandate frequency spectrum of described authorized user, to search for successively, to obtain the idle subband for control information transmission packet; Carry out demodulating and decoding to described for the control information packet in the idle subband of control information transmission packet, to obtain control information; Obtain the subband of transmitting user data bag according to described control information, and obtain described user data package from the subband of described transmitting user data bag.

Wherein, described control information in idle subband is carried out to demodulating and decoding, before obtaining control information step, comprise the steps: that, according to the size of the idle subband of predefined control information transmission and reference signal transmission rule, the reference signal position that local reference signal is corresponding to the subband receiving is carried out relevant; Judge whether relevant peak value is greater than threshold value, if relevant peak value is greater than threshold value, the packet in described subband is carried out to demodulating and decoding, to obtain the data in described subband; Judge that whether the data in described subband are effective, if the data validation in described subband is effective, the data in described subband are as control information.

For solving the problems of the technologies described above, the application provides a kind of second user's transmitting terminal on the other hand, comprise: divide module, data processing module, detection module, mapping relations determination module and sending module, described division module is for being partly or entirely divided at least one subband by the mandate frequency spectrum of authorized user, the equal and opposite in direction of each subband, described division module sends division result to detection module; Described data processing module is used for receiving described division result, before dispatching cycle, the Data Modulation of local terminal is become to packet, the size of each packet is no more than carried of the data volume of minimum shared cell, wherein, be the minimum time unit that carries out a data packet transmission dispatching cycle, and described data processing module sends described packet to sending module; Described detection module is for the frequency spectrum detection time in dispatching cycle, in the mandate frequency spectrum of detection authorized user, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used, wherein, described idle subband is the subband of authorization user signal lower than threshold value, and each idle subband is greater than or equal to a frequency resource that minimum shared cell is shared, described detection module sends testing result to described mapping relations determination module; Described mapping relations determination module, in the time there is at least one idle subband, is determined the mapping relations of described idle subband and described packet, and described mapping relations is sent to described sending module; Described sending module is used for receiving described packet and described mapping relations, and in frequency spectrum share time of described dispatching cycle, described packet is mapped to corresponding idle subband according to determined mapping relations, to send described packet to opposite end by described idle subband.

Wherein, described terminal comprises computing module, and described computing module is used for calculating carried of the data volume of described minimum shared cell, wherein, and available resources number × order of modulation ÷ code rate of carried of the data volume of described minimum shared cell=minimum shared cell.

Wherein, described computing module comprises: symbol acquiring unit, subcarrier acquiring unit and computing unit, described symbol acquiring unit is for obtaining the symbolic number that the described frequency spectrum share time comprises, and the symbolic number that described symbol acquiring unit comprises the described frequency spectrum share time sends to described computing unit, described subcarrier acquiring unit is for obtaining the sub-carrier number that described subband comprises, the sub-carrier number that described computing unit comprises for receiving symbolic number that the described frequency spectrum share time comprises and described subband, and calculate the available resources number that described minimum shared cell comprises, the available resources number that described minimum shared cell comprises equals the number of resources that described minimum shared cell comprises and deducts the number of resources for transmission of reference signals, if described minimum shared cell is first kind minimum shared cell, the number of resources that the minimum shared cell of the described first kind comprises equals the product of the symbolic number that sub-carrier number that described subband comprises and described frequency spectrum share time comprises, if the described minimum shared cell minimum shared cell that is Equations of The Second Kind, the number of resources that the minimum shared cell of described Equations of The Second Kind comprises equals the product of the symbolic number that the difference of sub-carrier number of sub-carrier number that described subband comprises and control information transmission and described frequency spectrum share time comprises.

Wherein, described detection module also detects for the situation that takies of each subband of the frequency spectrum detection time in described dispatching cycle to described authorized user, can supply with to determine whether to exist the idle subband that described second user's transmitting terminal is used; And in the time that all described subbands are all occupied, determine not exist and can supply with the idle subband that described second user's transmitting terminal is used; And there being subband not have when occupied, determine that existence can supply with the idle subband that described second user's transmitting terminal is used.

Whether wherein, described detection module also detects for the signal energy of each subband of the frequency spectrum detection time in described dispatching cycle to described authorized user, occupied to determine described subband; And be more than or equal to threshold value in the signal energy of described subband, determine that described subband is occupied; And in the time that the signal energy of described subband is less than threshold value, determine that described subband does not have occupied.

Wherein, described mapping relations determination module is also for selecting the idle subband of one of them idle subband as control information transmission, and using all the other idle subbands as the idle subband for transmitting packet, and specified data bag and the mapping relations of idle subband for transmitting packet.

Wherein, described mapping relations determination module comprises: judging unit and mapping relations determining unit; Described judging unit is for judging the quantity that whether is less than described user data package for the quantity of the idle subband of transmitting user data bag, and described judging unit sends judged result to described mapping relations determining unit;

Described mapping relations determining unit is used for receiving described judged result, and in the time being less than the quantity of described user data package for the idle number of sub-bands of transmitting user data bag, from all customer data bag, select to be less than or equal to the user data package for the idle number of sub-bands of transmitting user data bag, each packet is mapped to one for transmitting the idle subband of packet; And, in the time being greater than or equal to the quantity of user data package for the idle number of sub-bands of transmitting user data bag, from the idle subband of be useful on transmission packet, select to equal the idle subband for data packet number, each packet is mapped to a selected idle subband.

21. second user's transmitting terminals according to claim 19, it is characterized in that, described mapping relations determination module is also for the mapping relations with the idle subband for transmitting packet according to packet, generate control information, wherein, which subband described control information is used to indicate for transmitting packet.

Wherein, described mapping relations determination module is also control information physical layer data bag for described control information is carried out to modulating-coding according to predefined form, and in the frequency spectrum share time of described dispatching cycle, be mapped to the subband for control information transmission, to send to described opposite end.

Wherein, described sending module comprises frequency hopping unit, described frequency hopping unit is in subframe frequency-hopping mode communication in the situation that, in the first time slot of frequency spectrum share time in a described dispatching cycle, according to determined mapping relations, described control information and packet be mapped to corresponding idle subband and send to described opposite end, at the second time slot, described packet be mapped to the corresponding idle subband after the corresponding frequency hopping of the determined idle subband of described the first time slot and send to described opposite end.

For solving the problems of the technologies described above, the application provides a kind of second user's receiving terminal more on the one hand, comprise: receiver module, be used for receiving second user's transmitting terminal in the frequency spectrum share time, the packet that utilizes the idle subband of authorizing frequency spectrum to send, wherein, described packet comprises control information packet and user data package.

Wherein, described receiver module comprises: control information receiver module and user data receiver module; Described control information receiver module is used for receiving second user's transmitting terminal in the frequency spectrum share time, the control information packet that utilizes the idle subband of authorizing frequency spectrum to send; Described user data receiver module is used for receiving second user's transmitting terminal in the frequency spectrum share time, the user data package of utilizing the idle subband of authorizing frequency spectrum to send.

Wherein, described control information receiver module comprises: search unit and control information demodulating and decoding unit, and described user data receiver module comprises: control information acquiring unit and user data demodulating and decoding unit; Described search unit for searching for successively in the subband of the mandate frequency spectrum of described authorized user, and to obtain the idle subband for control information transmission, described search unit sends described Search Results to described control information demodulating and decoding unit; Described control information demodulating and decoding unit is used for receiving described Search Results, and carry out demodulating and decoding to described for the control information packet in the idle subband of control information transmission, to obtain control information, obtain the subband of transmitting user data bag according to described control information, and the sub-band information of described transmitting user data bag is sent to described user data receiver module; The sub-band information of the transmitting user data bag that described control information acquiring unit sends for receiving control information receiver module, and issue user data demodulating and decoding unit; Described user data demodulating and decoding unit is the user data to obtain according to the user data package in the subband of the each transmitting user data bag of the sub-band information of transmitting user data bag successively demodulating and decoding.

Wherein, described control information demodulating and decoding unit comprises: correlation unit, the first judging unit and the second judging unit; Described correlation unit is used for according to the size of the idle subband of predefined control information transmission and reference signal transmission rule, the local reference signal reference signal position corresponding to the subband receiving carried out relevant, described correlation unit by relevant peak value to described first judging unit send; Described the first judging unit receives described relevant peak value, and judge whether relevant peak value is greater than threshold value, and in the time that relevant peak value is greater than threshold value, data in described subband are carried out to demodulating and decoding, to obtain the data in described subband, described the first judging unit sends the data in described subband to described the second judging unit; Described the second judging unit receives the data in described subband, judges that whether the data in described subband are effective, and data validation in described subband is when effective, and the data in described subband are as control information.

For solving the problems of the technologies described above, the another aspect of the application provides a kind of spectra sharing system, comprise at least one second user's transmitting terminal and at least one second user's receiving terminal, wherein, the mandate frequency spectrum that described second user's transmitting terminal can be shared authorized user with described second user's receiving terminal communication, described second user's transmitting terminal is second above-mentioned user's transmitting terminal.

Wherein, described second user's receiving terminal is second above-mentioned user's receiving terminal.

Such scheme is by becoming size to be no more than the packet of carried of the data volume of minimum shared cell the Data Modulation of second user's transmitting terminal in advance, then go out the idle subband in authorized user within this dispatching cycle in the frequency spectrum detection time detecting of dispatching cycle, and in being mapped to packet the authorized user idle subband of the frequency spectrum share time in dispatching cycle, transfers out the frequency spectrum share time of this dispatching cycle, can make second user's transmitting terminal can share the uplink frequency spectrum resource of authorized user, effectively improve the utilance of frequency spectrum.Be appreciated that, modulate and encode by advance packet being carried to data volume according to minimum shared cell, save the data processing time of carrying out again Data Segmentation modulating-coding etc. after the frequency spectrum share time detecting, thereby can directly packet be shone upon detecting after idle subband, without waiting for tediously long data processing time, therefore, realize the process that completes frequency spectrum detection and frequency spectrum share within a shorter dispatching cycle, can make second user's transmitting terminal can realize the uplink frequency spectrum resource that detects and use the fast-changing authorized user of frequency spectrum within a dispatching cycle, effectively improve the utilance of frequency spectrum.On the other hand, packet of the present invention is can carry data volume according to minimum shared cell modulate and encode, and minimum shared cell is set to be no more than an idle subband size on frequency domain, make to shift to an earlier date the idle subband that ready packet can adapt to detect, can not exist packet to be greater than idle subband and problem that the data that cause cannot be transmitted.

Accompanying drawing explanation

Fig. 1 is the flow chart that the application's uplink frequency spectrum resource is shared method one execution mode;

Fig. 2 is the flow chart that the application's uplink frequency spectrum resource is shared another execution mode of method;

Fig. 3 is that the application's uplink frequency spectrum resource is shared the schematic diagram of dispatching cycle of authorized user in another execution mode of method;

Fig. 4 is the schematic diagram that the application's uplink frequency spectrum resource is shared the sub-band division of the mandate frequency spectrum of dispatching cycle in another execution mode of method;

Fig. 5 is the structural representation that the application's uplink frequency spectrum resource is shared Resource Block in another execution mode of method;

Fig. 6 is that the application's uplink frequency spectrum resource is shared in another execution mode of method the schematic diagram of transmission of reference signals in dispatching cycle;

Fig. 7 is that the application's uplink frequency spectrum resource is shared in another execution mode of method the distribution schematic diagram of reference signal in Resource Block;

Fig. 8 is the schematic diagram that the application's uplink frequency spectrum resource is shared the FFT time in another execution mode of method;

Fig. 9 is that in shared another execution mode of method of the application's uplink frequency spectrum resource, packet is mapped to after mandate frequency spectrum, authorizes the structural representation of frequency spectrum;

Figure 10 is the schematic diagram that the application's uplink frequency spectrum resource is shared a kind of bearing method of reference signal in another execution mode of method;

Figure 11 is the schematic diagram that the application's uplink frequency spectrum resource is shared the another kind of bearing method of reference signal in another execution mode of method;

Figure 12 is the schematic diagram that the application's uplink frequency spectrum resource is shared another bearing method of reference signal in another execution mode of method;

Figure 13 is that the application's uplink frequency spectrum resource is shared the schematic diagram that in OFDM, packet is mapped to idle subband in another execution mode of method;

Figure 14 is the schematic diagram that in shared another execution mode of method of the application's uplink frequency spectrum resource, SC-FDMA is mapped to packet idle subband;

Figure 15 be the application's uplink frequency spectrum resource while sharing in another execution mode of method frequency hopping packet be mapped to and authorize after frequency spectrum, authorize the schematic diagram of frequency spectrum;

Figure 16 is that the application's uplink frequency spectrum resource is shared the method flow chart of an execution mode again;

Figure 17 is the structural representation of the application's second user's transmitting terminal one execution mode;

Figure 18 is the structural representation of the application's second another execution mode of user's transmitting terminal;

Figure 19 is the structural representation of the application's second user's receiving terminal one execution mode;

Figure 20 is the application's second user's transmitting terminal structural representation of an execution mode again;

Figure 21 is the structural representation of the application's second another execution mode of user's receiving terminal.

Embodiment

In the several execution modes that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiments described above is only schematic, such as, the division of described module or unit, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, such as multiple unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.

Describe below in conjunction with accompanying drawing and concrete execution mode.Wherein, second user's transmitting terminal in literary composition is refered in particular to the user terminal of sharing authorized user frequency spectrum resource in authorized user mode, and the second user is to be first user for authorized user.The user terminal of the packet that correspondingly, second user's receiving terminal sends for reception second user's transmitting terminal.

Consult Fig. 1, Fig. 1 is the flow chart that the application's uplink frequency spectrum resource is shared method one execution mode.Uplink frequency spectrum resource is shared method and is comprised:

S101: second user's transmitting terminal will partly or entirely be divided at least one subband, the equal and opposite in direction of each subband in the mandate frequency spectrum of authorized user.

S102: before dispatching cycle, the Data Modulation of local terminal is become to packet in second user's transmitting terminal, the size of each packet is no more than carried of the data volume of minimum shared cell.

Before dispatching cycle, second user's transmitting terminal is in advance by the MAC(MediaAccess Control of local terminal) layer data cuts apart or is cascaded as size and be no more than a minimum shared cell and can carry the packet of data volume, and this packet is encoded and modulated according to predetermined coded system and modulation, the size of the each packet after coding and modulation is no more than carried of the data volume of a minimum shared cell.Minimum shared cell refers to the shared running time-frequency resource of minimum that can carry a packet in the dispatching cycle, and be the minimum time unit that authorized user carries out a data packet transmission dispatching cycle.Carried of the data volume of a minimum shared cell is the maximum number bits that can carry in a minimum shared cell.Shared frequency resource size of minimum shared cell is no more than the size of the shared frequency resource of subband.

S103: the frequency spectrum detection time of second user's transmitting terminal in dispatching cycle, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used in the mandate frequency spectrum of detection authorized user.

Conventionally, the frequency spectrum detection time is initial a period of time in the dispatching cycle, the frequency spectrum detection time of second user's transmitting terminal in dispatching cycle, in the mandate frequency spectrum of detection authorized user, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used, wherein, idle subband is that second user's transmitting terminal detects the subband of authorization user signal lower than threshold value, the available free subband size of institute is all identical, and each idle subband is greater than or equal to a frequency resource that minimum shared cell is shared.Can supply with if existed the idle subband that second user's transmitting terminal is used, enter S104.

S104: second user's transmitting terminal is determined the mapping relations of idle subband and packet.

Second user's transmitting terminal determines which packet which idle subband for transmitting.A packet of an idle subband transmission.

S105: the frequency spectrum share time of second user's transmitting terminal in dispatching cycle, packet is mapped to corresponding idle subband according to determined mapping relations, to send packet by idle subband to opposite end.

The frequency spectrum share time of second user's transmitting terminal within a dispatching cycle, by the idle subband of the frequency spectrum share time in the packet mapping scheduler cycle and send to opposite end, wherein, conventionally within a dispatching cycle, after the frequency spectrum detection time, there is the one piece of data processing time, for frequency spectrum detecting result is processed, determine mapping relations and generate control information signaling etc., then it is the frequency spectrum share time, the frequency spectrum share time is a period of time after data processing time in same dispatching cycle, for transmitting packet.Particularly, second user's transmitting terminal is mapped to a packet an idle subband of authorized user.

Such scheme is by being equal-sized subband by authorized user spectrum division in advance, and before second user's transmitting terminal is shared authorized user frequency spectrum transmission data, packet to be sent is modulated into size and is no more than the packet of carried of the data volume of minimum shared cell, then go out the idle subband in authorized user within this dispatching cycle in the frequency spectrum detection time detecting of dispatching cycle, and in being mapped to packet the authorized user idle subband of the frequency spectrum share time in dispatching cycle, transfers out the frequency spectrum share time of this dispatching cycle, can make second user's transmitting terminal can share the uplink frequency spectrum resource of authorized user, effectively improve the utilance of frequency spectrum.Be appreciated that, modulate and encode by advance packet being carried to data volume according to minimum shared cell, save the data processing time of carrying out again Data Segmentation modulating-coding etc. after the frequency spectrum share time detecting, thereby can directly packet be shone upon detecting after idle subband, without waiting for tediously long data processing time, therefore, realize the process that completes frequency spectrum detection and frequency spectrum share within a shorter dispatching cycle, can make second user's transmitting terminal can realize the uplink frequency spectrum resource that detects and use the fast-changing authorized user of frequency spectrum within a dispatching cycle, effectively improve the utilance of frequency spectrum.On the other hand, packet of the present invention is can carry data volume according to minimum shared cell modulate and encode, and minimum shared cell is set to be no more than an idle subband size on frequency domain, make to shift to an earlier date the idle subband that ready packet can adapt to detect, can not exist packet to be greater than idle subband and problem that the data that cause cannot be transmitted.

Consult Fig. 2, Fig. 2 is the flow chart that the application's uplink frequency spectrum resource is shared another execution mode of method.Uplink frequency spectrum resource is shared method and is comprised:

S201: second user's transmitting terminal is obtained the symbolic number that the frequency spectrum share time comprises.

Be that authorized user system is set in advance the dispatching cycle of authorized user, carries out the minimum time unit of a data packet transmission, i.e. the minimum time of a complete data packet transmission.Such as, in 3GPPLTE system and worldwide interoperability for microwave access (WiMAX, Worldwide Interoperability forMicrowave Access) system, be 1 subframe dispatching cycle, 3GPP LTE mono-subframe lengths is 1 millisecond, and be 1 millisecond the dispatching cycle of 3GPP LTE.Second user's transmitting terminal, determining after the mandate frequency spectrum of sharing 3GPP LTE system, is set the user's that obtains the authorization dispatching cycle according to 3GPP LTE agreement.And the subframe lengths of worldwide interoperability for microwave access (WiMAX, WorldwideInteroperability for Microwave Access) system can be 2 milliseconds, 2.5 milliseconds, 4 milliseconds, 5 milliseconds, 8 milliseconds, 10 milliseconds, 12.5 milliseconds, 20 milliseconds etc.The subframe lengths of WiMAX system is broadcasted away by downlink signaling by the base station in WiMAX system, second user's transmitting terminal is being determined after the mandate frequency spectrum of sharing WiMAX system, obtain the authorization in the downlink signaling of the base station from WiMAX system user's subframe lengths, thus the dispatching cycle of WiMAX system obtained.

The time of a dispatching cycle is divided into frequency spectrum detection time, data processing time, frequency spectrum share time and At All Other Times by second user's transmitting terminal.Wherein, the frequency spectrum detection time is that second user's transmitting terminal takies to the subband of authorized user the time period that situation detects.Data processing time mainly comprises frequency spectrum detecting result processing, and generates control information and packet mapping relations etc.The frequency spectrum share time is to share authorized user resource for second user's transmitting terminal, to transmit the time of packet.Second user's transmitting terminal is determined the time not using At All Other Times, for example, survey (Sounding) signal time, and the detectable signal time sends detectable signal for authorizes user terminal.

As shown in Figure 3, in 3GPP LTE system, be 1 millisecond the dispatching cycle of authorized user, in the time adopting general cyclic prefix (CP, Cyclic Prefix), comprises symbol #0 ~ #13 totally 14 symbols each dispatching cycle.Wherein, corresponding a period of time of each symbol.Second user's transmitting terminal determines that the corresponding time of symbol #0 is the frequency spectrum detection time, the corresponding time of symbol #1 is data processing time, and the corresponding time of symbol #13 is that authorized user is for sending the time of detectable signal, the frequency spectrum that the frequency spectrum that the time that symbol #13 is corresponding takies and corresponding time of symbol #0～symbol #12 take is different, thus second user's transmitting terminal determine symbol #2 ~ #12 totally 11 corresponding time of symbol as can be for the frequency spectrum share time of second user's transmitting terminal in the LTE dispatching cycle.Or, if shared time frequency spectrum detection time more in short-term, second user's transmitting terminal is determined time and the frequency spectrum detection time that the corresponding time of symbol #0 is data processing, and symbol #1 ~ #12 totally 12 corresponding time of symbol as can be for the frequency spectrum share time of second user's transmitting terminal in dispatching cycle, the symbolic number that the frequency spectrum share time that, second user's transmitting terminal acquires comprises is 12.Be understandable that, if when data processing time needs the long time, also can take several symbols more, can be for the corresponding minimizing of frequency spectrum share time of second user's transmitting terminal.In another embodiment, if adopt expansion CP, comprise 12 symbols each dispatching cycle, can be by the corresponding symbol #0 time for frequency spectrum detection, the corresponding symbol #1 time is used for to data processing, the corresponding time of symbol #2～#10 is the frequency spectrum share time that second user's transmitting terminal is used, that is, the symbolic number that the frequency spectrum share time that second user's transmitting terminal acquires comprises is 9.

S202: second user's transmitting terminal is obtained the sub-carrier number that subband comprises.Second user's transmitting terminal will partly or entirely be divided at least one subband in the mandate frequency spectrum of authorized user, the equal and opposite in direction of each subband, and each subband comprises at least one subcarrier.See also Fig. 4 and Fig. 5, the partial frequency spectrum of the mandate frequency spectrum of authorized user is divided into multiple equal-sized subbands by second user's transmitting terminal, and these subbands are that second user's transmitting terminal is with the shared frequency spectrum resource of authorized user mode.In the present embodiment, the bandwidth of subband is the sub-carrier number that 4 Resource Block (RB, ResourceBlock) comprise, and each Resource Block comprises 12 subcarriers.Therefore a sub-carrier number=12 × 4=48 that, subband comprises.In other execution mode, the quantity of the subcarrier that the Resource Block quantity that subband comprises and each Resource Block comprise all can arrange according to actual needs voluntarily, does not enumerate herein.

The sub-band division method that described second user's transmitting terminal is one or more equal-sized subbands by part or all of authorized user mandate spectrum division, be that authorized user frequency spectrum comprises several subbands, the starting and ending position of each subband in authorized user frequency spectrum is that second user's transmitting terminal and opposite end are in common knowledge.

Preferably, second user's transmitting terminal using in authorized user frequency spectrum except for transmitting remainder frequency spectrum upstream control signaling as can be for the second user terminal with the shared authorized user frequency spectrum resource of the second user mode.

Wherein, S201 and S202 do not have precedence relationship, in other execution mode, can first carry out S202 yet, then carry out S201.

S203: second user's transmitting terminal is calculated the available resources number that minimum shared cell comprises.

Obtain after the sub-carrier number that symbolic number that the frequency spectrum share time comprises and subband comprise, can calculate the available resources number of minimum shared cell.Wherein, minimum shared cell refers in a dispatching cycle and a subband and can offer the shared running time-frequency resource number of second user's transmitting terminal.

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

The corresponding subband of the minimum shared cell of the first kind, only for transmitting user data, is not used in control information transmission.Thereby, on the minimum shared cell frequency domain of the first kind, equaling the bandwidth of subband, the sub-carrier number that the minimum shared cell of the first kind comprises equals the sub-carrier number that subband comprises.

The corresponding subband of the minimum shared cell of Equations of The Second Kind is except user data, also for control information transmission, so, the minimum shared cell of Equations of The Second Kind is except by a part of frequency resource control information transmission, also need frequency resource to can be used for user data, therefore, on the minimum shared cell frequency domain of Equations of The Second Kind, equal sub-carrier number that subband comprises and deduct the sub-carrier number of control information transmission.The sub-carrier number of control information transmission is determined in advance by second user's transmitting terminal, such as, in the time of frequency resource that the bandwidth of subband comprises for 4RB, can determine in advance the sub-carrier number that the sub-carrier number of control information transmission comprises for 1RB, now, the sub-carrier number comprising for 3RB for the sub-carrier number of transmitting user data.

If the sub-carrier number of control information transmission equals the sub-carrier number that subband comprises, whole subcarriers of this subband, all for control information transmission, can not be used for transmitting user data, therefore, now do not have the minimum shared cell of Equations of The Second Kind.Or, even if the sub-carrier number of control information transmission is less than the sub-carrier number that subband comprises, also can arrange in advance by system, do not set Equations of The Second Kind minimum shared cell, i.e. a bear control information, not carrying user data in the subband of control information transmission.

When the number of resources of minimum shared cell is calculated, the sub-carrier number that first second user's transmitting terminal comprises according to the sub-carrier number of control information transmission and subband, determines whether to exist the minimum shared cell of Equations of The Second Kind.If the sub-carrier number of control information transmission equals the sub-carrier number that subband comprises, there is not the minimum shared cell of Equations of The Second Kind, only calculate the number of resources of the minimum shared cell of the first kind; If the sub-carrier number of control information transmission is less than the sub-carrier number that subband comprises, there is the minimum shared cell of Equations of The Second Kind, need to calculate respectively the number of resources of the minimum shared cell of the first kind and the minimum shared cell of Equations of The Second Kind.

For the minimum shared cell of the first kind, the symbolic number that sub-carrier number × frequency spectrum share time that number of resources=subband that the minimum shared cell of the first kind comprises comprises comprises.Take the execution mode shown in Fig. 5 and Fig. 6 as example, symbol=528, subcarrier × 4RB × 11, number of resources=12 that the minimum shared cell of the first kind comprises.

For the minimum shared cell of Equations of The Second Kind, parton carrier wave in subband need be used for control information transmission, thereby, the symbolic number that number of resources=(sub-carrier number of sub-carrier number-control information transmission that subband comprises) × frequency spectrum share time that the minimum shared cell of Equations of The Second Kind comprises comprises.Same take the execution mode shown in Fig. 5 and Fig. 6 as example, suppose that a Resource Block in four Resource Block of subband is for control information transmission, number of resources=12 subcarrier × (4-1) symbol=396, RB × 11 that Equations of The Second Kind minimum shared cell comprises.

By the minimum shared cell of design Equations of The Second Kind, can be in the time that subband size be greater than control information transmission resource requirement, make full use of the surplus resources after control information transmission in subband, improve the utilance of resource.

Wherein, the number of resources that the available resources number of minimum shared cell equals minimum shared cell deducts the number of resources for transmission of reference signals in minimum shared cell.Wherein, reference signal is for the synchronous and demodulation of opposite end, reference signal takies a minimum and shares the part running time-frequency resource in list, as carried out transmission of reference signals with the some symbols in the frequency spectrum share time, or within the frequency spectrum share time, select equably some running time-frequency resources to carry out transmission of reference signals.

See also Fig. 6, a time corresponding to authorized user internal symbol dispatching cycle #2～symbol #12 is the frequency spectrum share time, symbol #4 in the frequency spectrum share time of minimum shared cell 610 and symbol #9 are for transmission of reference signals, take the execution mode of the minimum shared cell of the first kind that comprises four Resource Block as example, symbol=432, the available resources of minimum shared cell number=528-12 subcarrier × 4RB × 2.For the minimum shared cell of Equations of The Second Kind, parton carrier wave in subband need be used for control information transmission, the minimum shared cell of Equations of The Second Kind only comprises remaining subcarrier after the subcarrier that removes control information transmission in subband, take above-mentioned subband bandwidth as the included frequency resource of 4RB, the execution mode that control information takies the minimum shared cell of Equations of The Second Kind of the included frequency resource of 1RB is example, the minimum shared cell frequency domain of Equations of The Second Kind is the included frequency resource of 3RB, the available resources of minimum shared cell number=396-12 subcarrier × (4-1) symbol=324, RB × 2.

In another embodiment, reference signal also can be evenly distributed in a minimum shared cell.Take Fig. 7 as example, reference signal R0 is evenly distributed in the frequency resource comprising for 1RB in frequency, the time-frequency piece forming for the frequency spectrum share time on the time.Take the execution mode of the minimum shared cell of the above-mentioned first kind that comprises 4RB as example, symbol=496, available resources number=528-4RB × 8 of minimum shared cell.The frequency resource comprising for 4RB for above-mentioned subband bandwidth, control information takies Equations of The Second Kind minimum shared cell, symbol=372, available resources number=396-3RB × 8 of minimum shared cell of the frequency resource that 1RB comprises.

S204: carried of the data volume of calculating minimum shared cell.

Available resources number × order of modulation ÷ code rate of carried of the data volume=minimum shared cell of minimum shared cell.Thereby, need obtain respectively available resources number, order of modulation and the code rate of minimum shared cell.

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

Secondly, obtain order of modulation according to the modulation system of data.Second user's transmitting terminal can be known its corresponding order of modulation after acquisition modulation system.Such as: table 1 shows the conventional corresponding order of modulation of modulation system.

The conventional modulation system of table 1 and corresponding order of modulation thereof

Then, obtain corresponding code rate according to coded system.

Modulation system and/or coded system can be that second user's transmitting terminal system is determined in advance, and immobilize, all the time adopt QPSK modulation such as presetting second user's transmitting terminal, 1/3 rate convolutional code, also can, according to the adaptive adjustment of channel condition, adopt high order modulation when as better in channel condition, low rate coding, when channel condition is poor, adopt low-order-modulated, high-rate coded.No matter be which kind of mode, modulation system and/or coded system be all packet cut apart or cascade before for second user's transmitting terminal and opposite end predicting.

Finally, calculate carried of the data volume of a minimum shared cell according to available resources number, modulation system and the coded system of a minimum shared cell.

Particularly, take the execution mode shown in Fig. 6 as example, the available resources number of a minimum shared cell of the first kind is 432., in the time adopting QPSK modulation system, order of modulation is 2, and code rate is 1/3, this minimum shared cell can bearing capacity=432 × 2 × 1 ÷ 3=288 bit.The minimum shared cell available resources of Equations of The Second Kind number is 342, and, in the time of employing QPSK modulation system, order of modulation is 2, and code rate is 1/3, this minimum shared cell can bearing capacity=342 × 2 × 1 ÷ 3=228 bit.

S205: before dispatching cycle, the user data of local terminal is modulated into packet by second user's transmitting terminal, and the size of each packet is no more than carried of the data volume of minimum shared cell.

Before dispatching cycle, second user's transmitting terminal is in advance by the MAC(Media Access Control that comprises user data of local terminal) layer data bag cuts apart or is cascaded as size and be no more than a minimum shared cell and can carry the packet of data volume, and this packet is encoded and modulated according to predetermined coded system and modulation, the size of the each packet after coding and modulation is no more than carried of the data volume of a minimum shared cell.And the size of the packet of the minimum shared cell of the use first kind is no more than the minimum shared cell of the first kind can carry data volume; Correspondingly, the size of the packet of the minimum shared cell of use Equations of The Second Kind is no more than the minimum shared cell of Equations of The Second Kind and can carries data volume.Each dispatching cycle, there is at the most a packet that uses the minimum shared cell of Equations of The Second Kind.

It should be noted that S201 ~ S205 must complete before dispatching cycle, could realize the function of transmitting second user's transmitting terminal data in second user's transmitting terminal with the shared authorized user uplink frequency spectrum resource of authorized user mode.

S206: the frequency spectrum detection time of second user's transmitting terminal in the dispatching cycle signal energy of the each subband to authorized user detects, to determine whether to exist idle subband.Described idle subband is used at least one of control information transmission or user data.

Determine the frequency spectrum detection time in dispatching cycle, first will obtain the subframe timing of second user's transmitting terminal.Wherein a kind of subframe timing acquisition methods is, second user's transmitting terminal receives the downstream signal of described base station, thereby obtain the descending sub frame timing that receives base station, and, second user's transmitting terminal is linked into described base station in the mode of authorized user, and second user's transmitting terminal obtains the uplink timing advance of second user's transmitting terminal from base station.The subframe timing of second user's transmitting terminal equals descending sub frame timing that second user's transmitting terminal receives base station and deducts the uplink timing advance of second user's transmitting terminal.Or the second user receives the downstream signal of described base station, thereby obtain the descending sub frame timing that receives base station, second user's transmitting terminal adopts the subframe timing of base station down subframe timing as the second user.

Second user's transmitting terminal, obtaining after subframe timing, according to predefined mode (take LTE as example, i.e. the defined time division methods of LTE standard), can obtain the initial time of the each symbol of second user's transmitting terminal.Whether second user's transmitting terminal detects in the signal energy of each subband of corresponding time period of first symbol to authorized user, occupied to determine described subband.

Take Fig. 8 as example, the initial time of the first symbol is deducted the half of CP/2(CP by second user's transmitting terminal) as initial time, signal in the system bandwidth of authorized user is carried out to fast Fourier transform, in the result from fast Fourier transform, extract the signal energy of each subband.Wherein, can only do fast Fourier transform to obtain the signal energy situation of subband to a symbol.If the energy of subband is greater than the threshold value of setting, the authorized user terminal of subband is shared, otherwise, subband do not have occupied, can be for transmitting control information or the user data of second user's transmitting terminal.

Understandably, also can do fast Fourier transform to multiple symbols, and after the energy of multiple symbols of each subband is average as the signal energy of described subband, adopt multiple symbols to detect and can obtain sensing results more accurately, but reduced the frequency spectrum share time.When multiple symbols are obtained to the energy situation of subband do fast Fourier transform, can deduct CP/2 in the initial time of each symbol, respectively each symbol be done to fast Fourier transform, or carry out continuously several fast Fourier transforms from first sign-on.The initial time of symbol deducts CP/2, can eliminate the interference that the user of propagation delay time around in CP/2 brings.

If all subbands are all occupied, do not exist and can supply with the subband that second user's transmitting terminal is used in this dispatching cycle, there is not idle subband, enter S207; Can supply with if existed the idle subband that second user's transmitting terminal is used, enter S208.

S207: second user's transmitting terminal judges and do not detect continuous dispatching cycle and can supply with the threshold number whether number of times of idle subband that second user's transmitting terminal uses is greater than setting.

Whether second user's transmitting terminal exists in to the mandate frequency spectrum of authorized user at least one can supply with the idle subband that second user's transmitting terminal uses in frequency spectrum detection time of each dispatching cycle carries out one-time detection, if do not detect and can supply with the idle subband that second user's transmitting terminal is used, number of times is added to one, if the idle subband that can supply with second user's transmitting terminal use detected, by number of times zero clearing.Therefore,, if the idle subband that can supply with second user's transmitting terminal use all do not detected multiple continuous dispatching cycle, can add up to number of times.

Judge and do not detect whether the number of times of the idle subband that can supply with second user's transmitting terminal use is greater than the threshold number of setting continuous dispatching cycle, if be not greater than the threshold number of setting, wait for the frequency spectrum detection time of next dispatching cycle, return and carry out S206; If be greater than the threshold number of setting, the mandate frequency spectrum that shows authorized user is being used by busy, process ends.

S208: second user's transmitting terminal judges whether to exist the minimum shared cell of Equations of The Second Kind.

Second user's transmitting terminal judges whether to exist 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 an idle subband detected, just can utilize this idle subband control information transmission and user data; If there is no the minimum shared cell of Equations of The Second Kind, has at least two idle subbands just can carry out transfer of data, and wherein at least one idle subband is for control information transmission, and all the other idle subbands are for transmitting user data.

Thereby, if there is Equations of The Second Kind resource-sharing unit, carry out S209, if there is no, judge whether the quantity of idle subband is greater than or equal to 2, if be greater than or equal to 2, carry out S209, otherwise, wait for next dispatching cycle, return and carry out S206.

S209: second user's transmitting terminal selects to be less than or equal to the user data package for the idle number of sub-bands of transmitting user data bag from all customer data bag.

Whether second user's transmitting terminal judgement is less than the quantity of user data package for the quantity of the idle subband of transmitting user data bag; If be less than the quantity of user data package for the idle number of sub-bands of transmitting user data bag, from all customer data bag, select to be less than or equal to the user data package for the idle number of sub-bands of transmitting user data bag, each packet is mapped to one for transmitting the idle subband of packet; If be greater than or equal to the quantity of user data package for the idle number of sub-bands of transmitting user data bag, be left intact.

Particularly, if there is the minimum shared cell of Equations of The Second Kind, for transmitting the quantity of the idle subband that the quantity of idle subband of packet equals to detect; If there is no the minimum shared cell of Equations of The Second Kind, subtracts one for transmitting the idle sub band number that the quantity of idle subband of packet equals to detect.The second user terminal selecting is less than or equal to the packet of the idle sub band number for transmitting packet for the transmission of this dispatching cycle.

Such as, if there is the minimum shared cell of Equations of The Second Kind, and the quantity of the minimum shared cell of Equations of The Second Kind is 1, the quantity of idle subband is 4, user data package quantity is 8, second user's transmitting terminal selects 4 user data to wrap in this dispatching cycle of transmission, wherein, if the minimum shared cell of use Equations of The Second Kind, must select a user data package that is no more than the minimum shared cell of Equations of The Second Kind can bearing capacity, and this user data package and the shared idle subband of 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, and second user's transmitting terminal selects 3 user data to wrap in this dispatching cycle of transmission, and a remaining idle subband is for control information transmission.

Second user's transmitting terminal is selected to be less than or equal to for the system of selection of the user data package of the idle number of sub-bands of transmitting user data bag from all customer data bag, if there is the minimum shared cell of Equations of The Second Kind, select a user data package that is less than or equal to the minimum data volume that shared cell carries of Equations of The Second Kind for transmitting at Equations of The Second Kind shared cell; Then select to equal (idle number of sub-bands-1) individual user data package from remaining users packet, the system of selection of these user data package can be to select according to transmission priority, for example select (idle number of sub-bands-1) user data package that transmission priority is the highest, or according to the arrival physical layer time of user data package, select (idle number of sub-bands-1) the individual user data package reaching the earliest; If there is no the minimum shared cell of Equations of The Second Kind, from all packets, select (idle number of sub-bands-1) individual user data package, the system of selection of these user data package can be to select according to transmission priority, for example select (idle number of sub-bands-1) user data package that transmission priority is the highest, or according to the arrival physical layer time of user data package, select (idle number of sub-bands-1) the individual user data package reaching the earliest.

S210: the mapping relations of second user's transmitting terminal specified data bag and idle subband.

Particularly, first the second user terminal selects the subband of an idle subband as control information transmission.All the other subbands are for transmitting user data bag.Idle subband of described selection is as the method for the subband of control information transmission, be specially, select the subband of first idle subband as control information transmission, or select the idle subband of energy minimum as the subband of control information transmission, or select the subband of last idle subband as control information transmission, or select an idle subband of the most close centre frequency as the subband of control information transmission.

Due in the time being used for the idle number of sub-bands of transmitting user data bag and being less than the quantity of user data package, can select packet through step S209, so the quantity of user data package can only be less than or equal to the quantity for the idle subband of transmitting user data bag in this step.

If have the minimum shared cell of Equations of The Second Kind, and the quantity of user data package equals idle number of sub-bands.First second user's transmitting terminal selects one of them to be not more than the minimum shared cell of the Equations of The Second Kind packet that carries ground data volume and to be mapped to the remainder of the idle subband of control information transmission, and all the other each user data package are mapped to an idle subband.If have 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.First second user's transmitting terminal selects one of them to be not more than the minimum shared cell of the Equations of The Second Kind packet that carries ground data volume and to be mapped to the remainder of the idle subband of control information transmission, the idle subband of selecting to equal again remaining user data package quantity, all the other each user data package are mapped to selected idle subband successively.

If there is no the minimum shared cell of Equations of The Second Kind, and the quantity of user data package equals idle number of sub-bands and deducts the idle number of sub-bands for control information transmission, and the quantity of user data package equals idle number of sub-bands and subtracts one.Second user's transmitting terminal is after the subband of having selected for control information transmission, and all the other each user data package are mapped to an idle subband.

If there is no 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 and deducts the idle number of sub-bands for control information transmission, and the quantity of user data package is less than idle number of sub-bands and subtracts one.Second user's transmitting terminal, after the subband of having selected for control information transmission, is selected to equal the idle subband of user data package quantity, and each user data package is mapped to selected idle subband successively in all the other idle subbands.

The method of the idle subband of described selection can be, selects according to the order of idle subband, or, select according to the size of idle subband signal energy order from small to large.

See also Fig. 9, there is shown packet is mapped to the situation after idle subband.As shown in Figure 9, in a dispatching cycle, the mandate frequency spectrum of authorized user comprises 11 subbands, comprising: 5 unavailable subbands and 6 idle subbands.First second user's transmitting terminal selects first idle subband in 6 idle subbands for control information transmission, and remaining 5 idle subbands are for transmitting user data bag.If user data package quantity is 3, from 5 idle subbands, select 3 idle subbands of energy minimum for transmitting user data bag.Wherein, unavailable subband is other subbands except idle subband in authorized user frequency spectrum, be included in the busy subband that step S206 detects, and in authorized user frequency spectrum, can not be used for the subband that the second user is shared, as some or all of for the frequency resource of transmitting physical ascending control channel (PUCCH).

Wherein, idle subband selection course in packet selection course in step S209 and step S210 does not have clear and definite sequencing, if be less than the quantity of described user data package for the idle number of sub-bands of transmitting user data bag, from all customer data bag, select to be less than or equal to the user data package for the idle number of sub-bands of transmitting user data bag; If be greater than or equal to the quantity of user data package for the idle number of sub-bands of transmitting user data bag, from the idle subband of be useful on transmission packet, select to equal the idle subband for data packet number, each packet is mapped to a selected idle subband.

S211: according to the mapping relations of determined packet and idle subband, generate control information, and control information packet is modulated and is encoded in control information.

Determining after the mapping relations of user data package and idle subband, second user's transmitting terminal is according to the mapping relations of user data package and idle subband, generate control information, control information comprises for representing which subband has carried the information of user data package, wherein a kind of method for expressing is, indicate certain subband whether to have mapping user data package with 1 bit respectively, " 0 " represents not shine upon user data package if, and " 1 " represents to have shone upon user data package.Take Fig. 9 as example, totally 11 subbands, represent mapping relations with 11 Bit datas, and the control information generating according to the mapping relations of Fig. 9 is: 00101001000.

Control information further can also comprise the information such as modulation system, coded system and the precoding sequence number under multi-antenna mode of the packet that idle subband carries.The information such as modulation system, coded system that whether comprises the packet that idle subband carries depends on whether need system setting.If system arranges the modulation system coded system of packet and fixes, without the modulation coding mode that comprises packet, if the modulation coding mode of packet is variable, need to comprise the modulation coding mode of packet.

Further, second user's transmitting terminal, generating after control information, is modulated control information and encode according to predefined format mode.The size of control information packet after modulation and coding is no more than the data volume that the idle subband of control information transmission can carry.

Wherein a kind of transmission means of control information is, control information, as other packets, is mapped to the Resource Unit (RE, Resource Element) for the carry data information of the idle subband of control information transmission after modulating-coding.As packet, in this manner, be divided into the RE of carry data information and the RE of carrying reference signal for the idle subband of control information transmission.Control information after modulation is mapped to the RE for the idle subband carry data information of control information transmission, and reference signal is mapped to the RE of carrying reference signal.Arrange in advance for the RE of carrying data in the idle subband of control information transmission and the RE of carrying reference signal, suppose to comprise 2RB for the idle subband of control information transmission, first RB is used for carrying reference signal, second RB is used for bear control information data, referring to Figure 10, or, by front several symbols carry reference signals, rear several symbols carry control information data, participate in Figure 11, or several symbols of uniform distribution are used for carrying reference signal, all the other symbols carry control information data, referring to Figure 12.

The modulation coding mode of control information is that system is arranged in advance, and such as modulation system is QPSK modulation, coded system is 1/3 tail-biting convolutional code.Second user's transmitting terminal is first according to the agreement of the RE of the RE of the bear control information in the idle subband of control information transmission and carrying reference signal, calculate the size of the RE of the bear control information of the idle subband that is used for control information transmission, after the control information data through-rate coupling after encoding, make control information data fill up the RE for the bear control information in the idle subband of control information transmission.

Suppose that by authorized user spectrum division be 25 subbands, each subband represents whether can be used by second user's transmitting terminal with 1 bit, have 25 bits, and suppose the modulation coding mode that control information comprises packet, modulation coding mode represents with 5 bits, control information has 30 bits, adds 16 bit cyclic redundancy (CRC), has 46 bits.46 bit informations, according to the design of the idle subband for control information transmission, are converted into corresponding control information packet.Suppose that the frequency spectrum share time is 11 symbols, idle subband size for control information transmission is 2RB, wherein, have 3 symbols to be used for transmitting reference information, being used for the RE of bear control information data for the idle subband of control information transmission is 24 × 11-23 × 3=192.Control information adopts QPSK modulation, can carry altogether 384 bits.It is 384 bits that the control information of 46 bits is stung through-rate coupling after tail convolutional encoding through 1/3, then after QPSK modulation, becomes 192 modulating datas, and the data after modulation are mapped to respectively on 192 RE of control information and transfer out.

Wherein the generating mode of another kind of control information packet is, different control informations is corresponded in different sequences, and the length of sequence just in time equals the RE number of control information subband.Such as, sequence corresponding to control information is m sequence, the length of m sequence equals the RE number of control information subband carrying, with different control informations as the different initial value of m sequence, be used for representing that the length of different control informations just in time equals the sequence of the RE number of control information subband carrying thereby generate, this sequence, as control information packet, is mapped to control information subband; Or, sequence corresponding to control information is FZC sequence, the length of FZC sequence equals the RE number of control information subband carrying, by the different control informations different FZC sequence of correspondence respectively, the for example root of FZC sequence or displacement, be used for representing that the length of different control informations just in time equals the sequence of the RE number of control information subband carrying thereby generate, this sequence, as control information packet, is mapped to control information subband.

S212: second user's transmitting terminal, within the frequency spectrum share time of dispatching cycle, according to determined mapping relations, is mapped to idle subband by control information packet and packet, and transfers out.

Take ofdm system as example, the data of first symbol within the frequency spectrum share time are mapped to separately corresponding subband by each packet (comprising control information packet), the data of unavailable subband are filled with " 0 ", then transform to time domain through IFFT module 1302, then increase CP by increasing CP module 1303, delivering to also-going here and there in modular converter 1304, change series connection signal into, transfer out by sending in front end of emission 1305 again, as shown in figure 13.Next process in the same way frequency spectrum mapping and share the data of second symbol in the time, the rest may be inferred, until the data of last symbol in the frequency spectrum share time are also transferred out.

For SC-FDMA system, first packet can also be mapped to each subband after DFT again, see also Figure 14, not comprise the minimum shared cell of Equations of The Second Kind as example, the packet of individual to (L-1) that modulate carrying the second user data information is carried out respectively to the discrete Fourier transform computing (DFT that M is ordered by M point DFT module 1401, Discrete FourierTransform), each packet obtains a corresponding M discrete signal, wherein, the sub-carrier number that M comprises for idle subband, L is idle sub band number, in the time not comprising the minimum shared cell of Equations of The Second Kind, L is greater than 1 natural number, N is counting of inverse fast Fourier transform (IFFT), N>M.Discrete signal x (1,1, N) ~ x (1, M, N) corresponding to control information can, by M point DFT conversion, also can not convert by M point DFT.When mapping, corresponding busy subband subcarrier is filled with 0, and the control information of frequency domain and packet corresponding to data message are mapped on corresponding idle subband according to the determined mapping relations of above-mentioned steps, then transform to time domain by IFFT module 1402.Then increase CP by increasing CP module 1403, delivering to also-going here and there in modular converter 1404, change series connection signal into, then transfer out by sending in front end of emission 1405.

Further, second user's transmitting terminal is linked into authorized user network with authorization, and from the system broadcast message of Serving cell, obtain this community and whether adopted frequency hopping in subframe, and the parameter of frequency hopping.Concrete, for LTE, second user's transmitting terminal is linked into cellular network in authorized user mode, from the system information block message of Serving cell, separate Physical Uplink Shared Channel common configuration parameter (PUSCH-ConfigCommon), whether the user who obtains cellular basestation adopts the parameter (intra-subframe hopping) of frequency hopping in subframe.Further, can also obtain Physical Uplink Shared Channel frequency hopping side-play amount (pusch-HoppingOffset).In with subframe frequency-hopping mode communication in the situation that, in the first time slot of frequency spectrum share time in a dispatching cycle, according to determined mapping relations, control information and packet be mapped to corresponding idle subband and send to opposite end, at the second time slot, packet be mapped to the corresponding idle subband after the corresponding frequency hopping of the determined idle subband of the first time slot and send to opposite end.Particularly, if the shared authorized user of second user's transmitting terminal has adopted frequency hopping in subframe, at authorized user front 1 time slot (front 0.5ms) of dispatching cycle, second user's transmitting terminal packet is mapped to corresponding idle subband according to the determined mapping relations of above-mentioned steps, at authorized user second time slot of dispatching cycle, at the idle subband of first time slot, respectively according to the pattern of frequency hopping in subframe, correspond to frequency hopping subband in corresponding subframe, second user's transmitting terminal data are at authorized user second time slot of dispatching cycle, be mapped to respectively on idle subband at the first time slot idle subband after according to frequency hop pattern frequency hopping.Because authorized user has adopted frequency hopping in subframe, authorized user can arrive new frequency in the second time slot frequency hopping according to fixing frequency hop pattern at the shared frequency spectrum of the first time slot.Therefore, corresponding, idle subband also can carry out frequency hopping according to frequency hop pattern.Take Figure 15 as example, second user's transmitting terminal detects 6 idle subbands at first time slot of dispatching cycle, be respectively subband 3,4,6,9,10,11, wherein first idle subband is that subband 3 is used for control information transmission, remains 5 idle subbands convey data packets 1～packets 5 respectively.In subframe when frequency hopping, suppose that frequency-hopping mode moves down 6 subbands for circulation, the subband after subband 3,4,6,9,10,11 corresponding frequency hoppings is 9,10,12,3,4,5.At first time slot of dispatching cycle, idle subband for control information transmission is mapped to subband 6, packet 1～packet 5 is mapped to respectively subband 4,6,9,10,11, at second time slot of dispatching cycle, idle subband for control information transmission is mapped to subband 9, and packet 1～packet 5 is mapped to respectively subband 10,12,3,4,5.Or, if authorized user has adopted frequency hopping in subframe, can also be further, to change 1 time slot (0.5ms) dispatching cycle into, the time started of each time slot is frequency spectrum perception and data processing time, and for first time slot, the time finishing to the first time slot from data processing time is the frequency spectrum share time, for the second time slot, it is the frequency spectrum share time from data processing time to the Sounding sign-on time.The second user terminal is divided execution step S201 ~ S212 according to the new time.

S213: second user's transmitting terminal judges whether that all data packet transmission are complete.If packet does not have end of transmission, return to step S206, at next one repeated execution of steps S206 ~ S213 dispatching cycle, until all data packet transmission are complete.If all data packet transmission are complete, process ends.

Consult Figure 16, Figure 16 is that the application's uplink frequency spectrum resource is shared the method flow chart of an execution mode again.Uplink frequency spectrum resource is shared method and is comprised:

S1601: second user's receiving terminal, in the frequency spectrum share time of dispatching cycle, according to the sub-band division mode identical with second user's transmitting terminal, is searched for the subband of control information transmission successively in the subband in the mandate frequency spectrum of authorized user.If second user's receiving terminal searches the subband of control information transmission, perform step S1602; Otherwise, wait for next dispatching cycle, execution step S1601, or process ends.

The described subband of searching for successively control information transmission at each subband, be specially, second user's receiving terminal, according to second user's transmitting terminal in advance the subband coding rule of agreement (as subband numbered from high to low according to frequency, or numbering from low to high, or antithetical phrase band is numbered from centre frequency to both sides etc.), successively from the subband of most probable control information transmission, according to subband coding rule, search for successively the subband of control information transmission.If agreement second user's transmitting terminal, from low frequency, is mapped to first idle subband to send to second user's receiving terminal by control information.Second user's receiving terminal is corresponding is numbered to high-frequency antithetical phrase band from low frequency, then brings line search into according to the order antithetical phrase of numbering.

Described second user's receiving terminal is searched for the subband of control information transmission successively in the subband in the mandate frequency spectrum of authorized user, be further, the second user, according to subband coding rule, first judges whether first subband has control information transmission, if had, the subband that this subband is control information transmission, if no, judge whether second subband has control information transmission, and the rest may be inferred, until find the subband of control information transmission, or all subbands are searched for.

Described second user's receiving terminal judges whether certain subband has control information transmission, be specially, if control information is transmitted according to step S211 first kind of way, be that control information transmission subband comprises control information packet and control information reference signal, control information is carried in control information packet, second user's receiving terminal is according to control information transmission subband size and control information reference signal transmission rule, with local reference signal and the reception signal correction that detects subband, if correlation peak is greater than threshold value, according to control information packet mapping ruler, data in this subband of demodulation, if the data validation after demodulating and decoding is effective control information, think and searched control information, this subband is control information subband.Described confirmation data effective method, is specially, and decoded result is correct, and as CRC check is passed through, or further, the correct and control information that solves of decoded result, in valid value range, thinks that data are effective; If control information is transmitted according to the step S211 second way, be that different control informations corresponds to different sequences, second user's receiving terminal carries out relevant by all possible sequence to the reception signal in subband successively, if the sequence of the peak value maximum after relevant is greater than threshold value, think that this subband is the subband of control information transmission, the corresponding control information of sequence that described correlation peak is corresponding, is the control information of second user's transmitting terminal transmission that will receive.

S1602: determine the idle subband that has transmitted user data package according to the control information obtaining.Second user's receiving terminal receives after control information, from control information, obtain transmitting the subband of packet, such as: if control information is " 00101001000 ", wherein, " 0 " represents that this subband is not used in transmitting user data bag, " 1 " represents that this subband is for transmitting user data bag, and this control information represents that the 3rd subband, the 5th subband and the 8th subband are for transmitting user data bag.

S1603: the data of the subband of user data package have been transmitted in second user's receiving terminal demodulation within the frequency spectrum share time, and to the decoding data after each subband demodulation, obtain the user data package of second user's transmitting terminal transmission.

As showing the 3rd subband, the 5th subband and the 8th subband, control information is used for transmitting packet, the data of second user's receiving terminal demodulation second user's receiving terminal the 3rd subband, the 5th subband and the 8th subband, and respectively to the data decode after the 3rd subband, the 5th subband and the 8th subband demodulation, obtain the decoded result of three packets, and exit flow process.

Participate in Figure 17, Figure 17 is the structural representation of the application's second user's transmitting terminal one execution mode.In present embodiment, second user's transmitting terminal comprises: divide module 1701, data processing module 1702, detection module 1703, mapping relations determination module 1704 and sending module 1705.Data processing module 1702 couples one end of sending module 1705.Divide one end that module 1701 couples detection module 1703, the other end of detection module 1703 couples one end of mapping relations determination module 1704, and the other end of mapping relations determination module 1704 couples the other end of sending module 1705.

Divide module 1701 for by the mandate frequency spectrum of authorized user be partly or entirely divided at least one subband, the equal and opposite in direction of each subband, divides module 1701 division result is sent to detection module 1703.

Data processing module 1702 is for before dispatching cycle, the Data Modulation of local terminal is become packet by data processing module 1702, the size of each packet is no more than carried of the data volume of minimum shared cell, and data processing module 1702 sends packet to sending module 1705.Such as, before dispatching cycle, second user's transmitting terminal is cut apart the MAC layer data of local terminal in advance or is cascaded as size and is no more than a minimum shared cell and can carries the packet of data volume, and this packet is encoded and modulated according to predetermined coded system and modulation, the size of the each packet after coding and modulation is no more than carried of the data volume of a minimum shared cell.Minimum shared cell refers to the shared running time-frequency resource of minimum that can carry a packet in the dispatching cycle, and be the minimum time unit that authorized user carries out a data packet transmission dispatching cycle.Carried of the data volume of a minimum shared cell is the maximum number bits that can carry in a minimum shared cell.Shared frequency resource size of minimum shared cell is no more than the size of the shared frequency resource of subband.

Detection module 1703 is for the frequency spectrum detection time in dispatching cycle, in the mandate frequency spectrum of detection authorized user, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used, wherein, idle subband is that second user's transmitting terminal detects the subband of authorization user signal lower than threshold value, and each idle subband is greater than or equal to a frequency resource that minimum shared cell is shared, and detection module 1703 sends testing result to mapping relations determination module 1704.

Mapping relations determination module 1704, in the time there is at least one idle subband, is determined the mapping relations of idle subband and packet, and mapping relations is sent to sending module 1705.

Sending module 1705 is for receiving packet and mapping relations, and in the frequency spectrum share time of dispatching cycle, packet is mapped to corresponding idle subband according to determined mapping relations, to send described packet to opposite end by idle subband.Such as, the frequency spectrum share time of second user's transmitting terminal within a dispatching cycle, by the idle subband of the frequency spectrum share time in the packet mapping scheduler cycle and send to opposite end, wherein, conventionally within a dispatching cycle, after the frequency spectrum detection time, there is the one piece of data processing time, for frequency spectrum detecting result is processed, determine mapping relations and generate control information signaling etc., then it is the frequency spectrum share time, the frequency spectrum share time is a period of time after data processing time in same dispatching cycle, for transmitting packet.Particularly, second user's transmitting terminal is mapped to a packet an idle subband of authorized user.If there is multiple packets and multiple idle subband, each packet is mapped to an idle subband.

Consult Figure 18, Figure 18 is the structural representation of the application's second another execution mode of user's transmitting terminal.In present embodiment, second user's transmitting terminal comprises: divide module 1810, computing module 1820, data processing module 1830, detection module 1840, mapping relations determination module 1850 and sending module 1860.Wherein, computing module 1820 comprises the symbol acquiring unit 1821, subcarrier acquiring unit 1823 and the computing unit 1825 that are linked in sequence.Mapping relations determination module 1850 comprises the judging unit 1851 and the mapping relations determining unit 1853 that are linked in sequence.One end of dividing module 1810 connects the subcarrier acquiring unit 1823 of computing module 1820, the computing unit 1825 of computing module 1820 couples one end of data processing module 1830, and the other end of data processing module 1830 couples sending module 1860 one end.The other end of dividing module 1810 couples one end of detection module 1840, the other end of detection module 1840 couples one end of the judging unit 1851 of mapping relations determination module 1850, the other end of judging unit 1851 couples one end of mapping relations determining unit 1853, and the other end of mapping relations determining unit 1853 couples the other end of sending module 1860.

Divide module 1810 for the mandate frequency spectrum of authorized user is partly or entirely divided into at least one subband, the equal and opposite in direction of each subband.

Computing module 1820 is for calculating carried of the data volume of minimum shared cell, wherein, and available resources number × order of modulation ÷ code rate of carried of the data volume of minimum shared cell=minimum shared cell.Such as, calculate the available resources number of minimum shared cell by symbol acquiring unit 1821, subcarrier acquiring unit 1823 and computing unit 1825.

Symbol acquiring unit 1821 is for obtaining the symbolic number that the frequency spectrum share time comprises, and the symbolic number that symbol acquiring unit 1821 comprises the frequency spectrum share time sends to computing unit 1825.Such as, be that authorized user system is set in advance the dispatching cycle of authorized user, carries out the minimum time unit of a data packet transmission, i.e. the minimum time of a complete data packet transmission.Such as, in 3GPP LTE system and global microwave internet access system, be 1 subframe dispatching cycle, and 3GPPLTE mono-subframe lengths is 1 millisecond, and be 1 millisecond the dispatching cycle of 3GPP LTE.Second user's transmitting terminal, determining after the mandate frequency spectrum of sharing 3GPP LTE system, is set the user's that obtains the authorization dispatching cycle according to 3GPP LTE agreement.And the subframe lengths of global microwave internet access system can be 2 milliseconds, 2.5 milliseconds, 4 milliseconds, 5 milliseconds, 8 milliseconds, 10 milliseconds, 12.5 milliseconds, 20 milliseconds etc.The subframe lengths of WiMAX system is broadcasted away by downlink signaling by the base station in WiMAX system, second user's transmitting terminal is being determined after the mandate frequency spectrum of sharing WiMAX system, obtain the authorization in the downlink signaling of the base station from WiMAX system user's subframe lengths, thus the dispatching cycle of WiMAX system obtained.

The time of a dispatching cycle is divided into frequency spectrum detection time, data processing time, frequency spectrum share time and At All Other Times by second user's transmitting terminal.Wherein, the frequency spectrum detection time is that second user's transmitting terminal takies to the subband of authorized user the time period that situation detects.Data processing time mainly comprises frequency spectrum detecting result processing, and generates control information and packet mapping relations etc.The frequency spectrum share time is to share authorized user resource for second user's transmitting terminal, to transmit the time of packet.Second user's transmitting terminal is determined the time not using At All Other Times, and for example detectable signal time, the detectable signal time sends detectable signal for authorizes user terminal.

As shown in Figure 3, in 3GPP LTE system, be 1 millisecond the dispatching cycle of authorized user, in the time adopting general cyclic prefix, comprises symbol #0 ~ #13 totally 14 symbols each dispatching cycle.Wherein, corresponding a period of time of each symbol.Second user's transmitting terminal determines that the corresponding time of symbol #0 is the frequency spectrum detection time, the corresponding time of symbol #1 is data processing time, and the corresponding time of symbol #13 is that authorized user is for sending the time of detectable signal, the frequency spectrum that the frequency spectrum that the time that symbol #13 is corresponding takies and corresponding time of symbol #0～symbol #12 take is different, thus second user's transmitting terminal determine symbol #2 ~ #12 totally 11 corresponding time of symbol as can be for the frequency spectrum share time of second user's transmitting terminal in the LTE dispatching cycle.Or, if shared time frequency spectrum detection time more in short-term, second user's transmitting terminal is determined time and the frequency spectrum detection time that the corresponding time of symbol #0 is data processing, and symbol #1 ~ #12 totally 12 corresponding time of symbol as can be for the frequency spectrum share time of second user's transmitting terminal in dispatching cycle, the symbolic number that the frequency spectrum share time that, second user's transmitting terminal acquires comprises is 12.Be understandable that, if when data processing time needs the long time, also can take several symbols more, can be for the corresponding minimizing of frequency spectrum share time of second user's transmitting terminal.In another embodiment, if adopt expansion CP, comprise 12 symbols each dispatching cycle, can be by the corresponding symbol #0 time for frequency spectrum detection, the corresponding symbol #1 time is used for to data processing, the corresponding time of symbol #2～#10 is the frequency spectrum share time that second user's transmitting terminal is used, that is, the symbolic number that the frequency spectrum share time that second user's transmitting terminal acquires comprises is 9.

The sub-carrier number that subcarrier acquiring unit 1823 comprises for obtaining subband, the sub-carrier number that subcarrier acquiring unit 1823 comprises subband sends to computing unit 1825.Such as, consult Fig. 4 and Fig. 5, second user's transmitting terminal is multiple equal-sized subbands by the part or all of spectrum division of the mandate frequency spectrum of authorized user.Wherein, subband comprises at least one subcarrier.In the present embodiment, the sub-carrier number that the bandwidth of subband comprises for 4 Resource Block, each Resource Block comprises 12 subcarriers.Therefore a sub-carrier number=12 × 4=48 that, subband comprises.In other execution mode, the quantity of the subcarrier that the Resource Block quantity that subband comprises and each Resource Block comprise all can arrange according to actual needs voluntarily, does not enumerate herein.

Computing unit 1825 shares for received spectrum the sub-carrier number that the symbolic number that comprises of time and subband comprise, and calculate the available resources number that minimum shared cell comprises, the available resources number that minimum shared cell comprises equals the number of resources that minimum shared cell comprises and deducts the number of resources for transmission of reference signals, if the minimum shared cell minimum shared cell that is the first kind, the number of resources that the minimum shared cell of the first kind comprises equals the product of the symbolic number that sub-carrier number that subband comprises and frequency spectrum share time comprises; If the minimum shared cell minimum shared cell that is Equations of The Second Kind, the number of resources that the minimum shared cell of Equations of The Second Kind comprises equals the product of the symbolic number that the difference of sub-carrier number of sub-carrier number that subband comprises and control information transmission and frequency spectrum share time comprises.Such as, obtain after the sub-carrier number that symbolic number that the frequency spectrum share time comprises and subband comprise, can calculate the available resources number of minimum shared cell.Wherein, minimum shared cell refers in a dispatching cycle and a subband and can offer the shared running time-frequency resource number of second user's transmitting terminal.

In another embodiment, reference signal also can be evenly distributed in a minimum shared cell.Take Fig. 7 as example, reference signal R0 divides and is evenly distributed in the frequency resource comprising for 1RB in frequency, the time-frequency piece forming for the frequency spectrum share time on the time.Take the execution mode of the minimum shared cell of the above-mentioned first kind that comprises 4RB as example, symbol=496, available resources number=528-4RB × 8 of minimum shared cell.The frequency resource comprising for 4RB for above-mentioned subband bandwidth, control information takies Equations of The Second Kind minimum shared cell, symbol=372, available resources number=396-3RB × 8 of minimum shared cell of the frequency resource that 1RB comprises.

After this, computing module 1820 obtains according to the modulation system of data and obtains order of modulation.After acquisition modulation system, can know its corresponding order of modulation.Specifically refer to table 1, do not repeat to repeat herein.

Computing module 1820 obtains corresponding code rate according to coded system.Modulation system and/or coded system can be that second user's transmitting terminal system is determined in advance, and immobilize, such as, second user's transmitting terminal be can preset and QPSK modulation, 1/3 rate convolutional code adopted all the time, also can be according to the adaptive adjustment of channel condition, when as better in channel condition, adopt high order modulation, low rate coding, when channel condition is poor, adopt low-order-modulated, high-rate coded.No matter be which kind of mode, modulation system and/or coded system be all packet cut apart or cascade before for second user's transmitting terminal and opposite end predicting.

Obtaining after available resources number, modulation system and the coded system of minimum shared cell, computing module 1820 calculates carried of the data volume of a minimum shared cell.Such as, take the execution mode shown in Fig. 6 as example, the available resources number of a minimum shared cell of the first kind is 432., in the time adopting QPSK modulation system, order of modulation is 2, and code rate is 1/3, this minimum shared cell can bearing capacity=432 × 2 × 1 ÷ 3=288 bit.The minimum shared cell available resources of Equations of The Second Kind number is 342, and, in the time of employing QPSK modulation system, order of modulation is 2, and code rate is 1/3, this minimum shared cell can bearing capacity=342 × 2 × 1 ÷ 3=228 bit.

Data processing module 1830 is for before dispatching cycle, the Data Modulation of local terminal is become packet by second user's transmitting terminal, the size of each packet is no more than carried of the data volume of minimum shared cell, and data processing module 1830 sends packet to sending module 1860.Such as, before dispatching cycle, second user's transmitting terminal is cut apart the MAC layer data of local terminal in advance or is cascaded as size and is no more than a minimum shared cell and can carries the packet of data volume, and this packet is encoded and modulated according to predetermined coded system and modulation, the size of the each packet after coding and modulation is no more than carried of the data volume of a minimum shared cell.Minimum shared cell refers to the shared running time-frequency resource of minimum that can carry a packet in the dispatching cycle, and be the minimum time unit that authorized user carries out a data packet transmission dispatching cycle.Carried of the data volume of a minimum shared cell is the maximum number bits that can carry in a minimum shared cell.

Detection module 1840 is for the frequency spectrum detection time in dispatching cycle, in the mandate frequency spectrum of detection authorized user, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used, wherein, idle subband is that second user's transmitting terminal detects the subband of authorization user signal lower than threshold value, the available free subband size of institute is all identical, and each idle subband is greater than or equal to a frequency resource that minimum shared cell is shared, and detection module 1850 sends testing result to mapping relations determination module 1850.Whether particularly, detection module 1840 detects for the signal energy of each subband of the frequency spectrum detection time in dispatching cycle to authorized user, occupied to determine subband; And be more than or equal to threshold value in the signal energy of subband, determine that subband is occupied; And in the time that the signal energy of subband is less than threshold value, determine that subband does not have occupied, and in the time that all subbands are all occupied, determine not exist and can supply with the idle subband that second user's transmitting terminal is used; And there being subband not have when occupied, determine that existence can supply with the idle subband that second user's transmitting terminal is used.Such as, determine the frequency spectrum detection time in dispatching cycle, first to obtain the subframe timing of second user's transmitting terminal.Wherein a kind of subframe timing acquisition methods is, second user's transmitting terminal receives the downstream signal of described base station, thereby obtain the descending sub frame timing that receives base station, and, second user's transmitting terminal is linked into described base station in the mode of authorized user, and second user's transmitting terminal obtains the uplink timing advance of second user's transmitting terminal from base station.The subframe timing of second user's transmitting terminal equals descending sub frame timing that second user's transmitting terminal receives base station and deducts the uplink timing advance of second user's transmitting terminal.Or the second user receives the downstream signal of described base station, thereby obtain the descending sub frame timing that receives base station, second user's transmitting terminal adopts the subframe timing of base station down subframe timing as the second user.

Mapping relations determination module 1850 for exist at least one can supply with second user's transmitting terminal use idle subband time, determine the mapping relations of idle subband and packet, and mapping relations sent to sending module 1860.

Particularly, mapping relations determination module 1850 is also for selecting the subband of one of them idle subband as control information transmission, and using all the other idle subbands as the subband for transmitting packet, and specified data bag and the mapping relations of idle subband for transmitting packet.

Judging unit 1851 is for judging the quantity that whether is less than user data package for the quantity of the idle subband of transmitting user data bag, and judging unit 1851 sends judged result to mapping relations determining unit 1853.Map unit 1853 is for receiving judged result, and in the time being less than the quantity of described user data package for the idle number of sub-bands of transmitting user data bag, from all customer data bag, select to be less than or equal to the user data package for the idle number of sub-bands of transmitting user data bag, each packet is mapped to one for transmitting the idle subband of packet; And, in the time being greater than or equal to the quantity of user data package for the idle number of sub-bands of transmitting user data bag, from the idle subband of be useful on transmission packet, select to equal the idle subband for data packet number, each packet is mapped to a selected idle subband.

Such as, if there is the minimum shared cell of Equations of The Second Kind, for transmitting the quantity of the idle subband that the quantity of idle subband of packet equals to detect; If there is no the minimum shared cell of Equations of The Second Kind, subtracts one for transmitting the idle sub band number that the quantity of idle subband of packet equals to detect.The second user terminal selecting is less than or equal to the packet of the idle sub band number for transmitting packet for the transmission of this dispatching cycle.

From all customer data bag, select to be less than or equal to for the system of selection of the user data package of the idle number of sub-bands of transmitting user data bag and be, if there is the minimum shared cell of Equations of The Second Kind, select a user data package that is less than or equal to the minimum data volume that shared cell carries of Equations of The Second Kind for transmitting at Equations of The Second Kind shared cell; Then select to equal (idle number of sub-bands-1) individual user data package from remaining users packet, the system of selection of these user data package can be to select according to transmission priority, for example select (idle number of sub-bands-1) user data package that transmission priority is the highest, or according to the arrival physical layer time of user data package, select (idle number of sub-bands-1) the individual user data package reaching the earliest; If there is no the minimum shared cell of Equations of The Second Kind, from all packets, select (idle number of sub-bands-1) individual user data package, the system of selection of these user data package can be to select according to transmission priority, for example select (idle number of sub-bands-1) user data package that transmission priority is the highest, or according to the arrival physical layer time of user data package, select (idle number of sub-bands-1) the individual user data package reaching the earliest.

First the second user terminal selects the subband of an idle subband as control information transmission.All the other subbands are for transmitting user data bag.Idle subband of described selection is as the method for the subband of control information transmission, be specially, select the subband of first idle subband as control information transmission, or select the idle subband of energy minimum as the subband of control information transmission, or select the subband of last idle subband as control information transmission, or select an idle subband of the most close centre frequency as the subband of control information transmission.

When mapping, if there is the minimum shared cell of Equations of The Second Kind, and the quantity of user data package equals idle number of sub-bands.First second user's transmitting terminal selects one of them to be not more than the minimum shared cell of the Equations of The Second Kind packet that carries ground data volume and to be mapped to the remainder of the idle subband of control information transmission, and all the other each user data package are mapped to an idle subband.If have 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.First second user's transmitting terminal selects one of them to be not more than the minimum shared cell of the Equations of The Second Kind packet that carries ground data volume and to be mapped to the remainder of the idle subband of control information transmission, the idle subband of selecting to equal again remaining user data package quantity, all the other each user data package are mapped to selected idle subband successively.

See also Fig. 9, there is shown packet is mapped to the situation after idle subband.As shown in Figure 9, in a dispatching cycle, the mandate frequency spectrum of authorized user comprises 11 subbands, comprising: 5 unavailable subbands and 6 idle subbands.First second user's transmitting terminal selects first idle subband in 6 idle subbands for control information transmission, and remaining 5 idle subbands are for transmitting user data bag.If user data package quantity is 3, from 5 idle subbands, select 3 idle subbands of energy minimum for transmitting user data bag.Wherein, unavailable subband is other subbands except idle subband in authorized user frequency spectrum, be included in the busy subband that step S207 detects, and can not be used for the subband that the second user is shared in authorized user frequency spectrum, as some or all of for transmitting the frequency resource of PUCCH.

Mapping relations determination module 1850 also, for the mapping relations with the idle subband for transmitting packet according to packet, generates control information, and wherein, which subband control information is used to indicate for transmitting packet.Such as, determining after the mapping relations of user data package and idle subband, second user's transmitting terminal is according to the mapping relations of user data package and idle subband, generate control information, control information comprises for representing which subband has carried the information of user data package, and wherein a kind of method for expressing is, indicates certain subband whether to have mapping user data package respectively with 1 bit, " 0 " represents not shine upon user data package if, and " 1 " represents to have shone upon user data package.Take Fig. 9 as example, totally 11 subbands, represent mapping relations with 11 Bit datas, and the control information generating according to the mapping relations of Fig. 9 is: 00101001000.

Mapping relations determination module 1850 is also control information physical layer data bag for control information is carried out to modulating-coding according to predefined form, and in the frequency spectrum share time of dispatching cycle, is mapped to subband for control information transmission to send to opposite end.Such as, second user's transmitting terminal, generating after control information, is modulated control information and encode according to predefined format mode.The size of control information packet after modulation and coding is no more than the data volume that the idle subband of control information transmission can carry.

Wherein a kind of transmission means of control information is, control information, as other packets, is mapped to the RE for the carry data information of the idle subband of control information transmission after modulating-coding.As packet, in this manner, be divided into the RE of carry data information and the RE of carrying reference signal for the idle subband of control information transmission.Control information after modulation is mapped to the RE for the idle subband carry data information of control information transmission, and reference signal is mapped to the RE of carrying reference signal.Arrange in advance for the RE of carrying data in the idle subband of control information transmission and the RE of carrying reference signal, suppose to comprise 2RB for the idle subband of control information transmission, first RB is used for carrying reference signal, second RB is used for bear control information data, referring to Figure 10, or, by front several symbols carry reference signals, rear several symbols carry control information data, participate in Figure 11, or several symbols of uniform distribution are used for carrying reference signal, all the other symbols carry control information data, referring to Figure 12.

Suppose that by authorized user spectrum division be 25 subbands, each subband represents whether can be used by second user's transmitting terminal with 1 bit, have 25 bits, and suppose the modulation coding mode that control information comprises packet, modulation coding mode represents with 5 bits, control information has 30 bits, adds 16 bit cyclic redundancy CRC, has 46 bits.46 bit informations, according to the design of the idle subband for control information transmission, are converted into corresponding control information packet.Suppose that the frequency spectrum share time is 11 symbols, idle subband size for control information transmission is 2RB, wherein, have 3 symbols to be used for transmitting reference information, being used for the RE of bear control information data for the idle subband of control information transmission is 24 × 11-23 × 3=192.Control information adopts QPSK modulation, can carry altogether 384 bits.It is 384 bits that the control information of 46 bits is stung through-rate coupling after tail convolutional encoding through 1/3, then after QPSK modulation, becomes 192 modulating datas, and the data after modulation are mapped to respectively on 192 RE of control information and transfer out.

Transmitting element 1860 is for receiving packet and described mapping relations, and in the frequency spectrum share time of dispatching cycle, packet is mapped to corresponding idle subband according to determined mapping relations, send to opposite end, wherein, a packet is mapped to an idle subband.

And, sending module 1860 also comprises frequency hopping unit, frequency hopping unit is in subframe frequency-hopping mode communication in the situation that, in the first time slot of frequency spectrum share time in a described dispatching cycle, according to determined mapping relations, described control information and packet be mapped to corresponding idle subband and send to described opposite end, at the second time slot, described packet be mapped to the corresponding idle subband after the corresponding frequency hopping of the determined idle subband of described the first time slot and send to described opposite end.

Such as, second user's transmitting terminal is linked into authorized user network with authorization, and from the system broadcast message of Serving cell, obtain this community and whether adopted frequency hopping in subframe, and the parameter of frequency hopping.Concrete, for LTE, second user's transmitting terminal is linked into cellular network in authorized user mode, from the system information block message of Serving cell, separate Physical Uplink Shared Channel common configuration parameter (PUSCH-ConfigCommon), whether the user who obtains cellular basestation adopts the parameter (intra-subframe hopping) of frequency hopping in subframe.Further, can also obtain Physical Uplink Shared Channel frequency hopping side-play amount (pusch-HoppingOffset).If the shared authorized user of second user's transmitting terminal has adopted frequency hopping in subframe, at authorized user front 1 time slot (front 0.5ms) of dispatching cycle, second user's transmitting terminal packet is mapped to corresponding idle subband according to the determined mapping relations of above-mentioned steps, at authorized user second time slot of dispatching cycle, at the idle subband of first time slot, respectively according to the pattern of frequency hopping in subframe, correspond to frequency hopping subband in corresponding subframe, second user's transmitting terminal data are at authorized user second time slot of dispatching cycle, be mapped to respectively on idle subband at the first time slot idle subband after according to frequency hop pattern frequency hopping.Because authorized user has adopted frequency hopping in subframe, authorized user can arrive new frequency in the second time slot frequency hopping according to fixing frequency hop pattern at the shared frequency spectrum of the first time slot.Therefore, corresponding, idle subband also can carry out frequency hopping according to frequency hop pattern.Take Figure 15 as example, second user's transmitting terminal detects 6 idle subbands at first time slot of dispatching cycle, be respectively subband 3,4,6,9,10,11, wherein first idle subband is that subband 3 is used for control information transmission, remains 5 idle subbands convey data packets 1～packets 5 respectively.In subframe when frequency hopping, suppose that frequency-hopping mode moves down 6 subbands for circulation, the subband after subband 3,4,6,9,10,11 corresponding frequency hoppings is 9,10,12,3,4,5.At first time slot of dispatching cycle, idle subband for control information transmission is mapped to subband 6, packet 1～packet 5 is mapped to respectively subband 4,6,9,10,11, at second time slot of dispatching cycle, idle subband for control information transmission is mapped to subband 9, and packet 1～packet 5 is mapped to respectively subband 10,12,3,4,5.Or, if authorized user has adopted frequency hopping in subframe, can also be further, to change 1 time slot (0.5ms) dispatching cycle into, the time started of each time slot is frequency spectrum perception and data processing time, and for first time slot, the time finishing to the first time slot from data processing time is the frequency spectrum share time, for the second time slot, it is the frequency spectrum share time from data processing time to the Sounding sign-on time.

Consult Figure 19, Figure 19 is the structural representation of the application's second user's receiving terminal one execution mode.Second user's receiving terminal comprises: receiver module, receiver module is used for receiving second user's transmitting terminal in the frequency spectrum share time, the packet that utilizes the idle subband of authorizing frequency spectrum to send, wherein, described packet comprises control information packet and user data package.

Particularly, receiver module comprises: control information receiver module 1910 and user data receiver module 1920.Control information receiver module 1910 is for receiving second user's transmitting terminal in the frequency spectrum share time, the control information packet that utilizes the idle subband of authorizing frequency spectrum to send; User data receiver module 1920 is for receiving second user's transmitting terminal in the frequency spectrum share time, the user data package of utilizing the idle subband of authorizing frequency spectrum to send.

Search unit 1911 for searching for successively in the subband of the mandate frequency spectrum of authorized user, and to obtain the idle subband for control information transmission, search unit 1911 sends Search Results to control information demodulating and decoding unit 1913.Such as, second user's receiving terminal, according to second user's transmitting terminal in advance the subband coding rule of agreement (as subband numbered from high to low according to frequency, or numbering from low to high, or antithetical phrase band is numbered from centre frequency to both sides etc.), from the subband of most probable control information transmission, according to subband coding rule, search for successively the subband of control information transmission successively.If agreement second user's transmitting terminal, from low frequency, is mapped to first idle subband to send to second user's receiving terminal by control information.Second user's receiving terminal is corresponding is numbered to high-frequency antithetical phrase band from low frequency, then brings line search into according to the order antithetical phrase of numbering.

Control information demodulating and decoding unit 1913 is for receiving described Search Results, and the control information packet in the idle subband for control information transmission is carried out to demodulating and decoding, to obtain control information, obtain the subband of transmitting user data bag according to control information, and the sub-band information of transmitting user data bag is sent to the control information acquiring unit 1921 of user data receiver module 1920.Particularly, control information demodulating and decoding unit 1913 comprises: correlation unit, the first judging unit and the second judging unit; Correlation unit is used for according to the size of the idle subband of predefined control information transmission and reference signal transmission rule, the local reference signal reference signal position corresponding to the subband receiving carried out relevant, described correlation unit by relevant peak value to described first judging unit send; The first judging unit receives described relevant peak value, and judge whether relevant peak value is greater than threshold value, and in the time that relevant peak value is greater than threshold value, data in subband are carried out to demodulating and decoding, to obtain the data in subband, described the first judging unit sends the data in described subband to described the second judging unit; The second judging unit receives the data in subband, judges that whether the data in subband are effective, and data validation in subband is when effective, and the data in subband are as control information.Such as, according to control information transmission subband size and control information reference signal transmission rule, with local reference signal and the reception signal correction that detects subband, if relevant peaks is greater than threshold value,, according to control information packet mapping ruler, the data in this subband of demodulation, if the data validation after demodulating and decoding is effective control information, think and searched control information, this subband is control information subband.Described confirmation data effective method, is specially, and decoded result is correct, and as CRC check is passed through, or further, the correct and control information that solves of decoded result, in valid value range, thinks that data are effective.

The sub-band information of the transmitting user data bag that control information acquiring unit 1921 sends for receiving control information receiver module 1910, and issue user data demodulating and decoding unit 1923.Such as, if control information is " 00101001000 ", wherein, " 0 " represents that this subband is not used in transmitting user data bag, " 1 " represents that this subband is for transmitting user data bag, and this control information represents that the 3rd subband, the 5th subband and the 8th subband are for transmitting user data bag.

User data demodulating and decoding unit 1923 is the user data to obtain according to the user data package in the subband of the each transmitting user data bag of the sub-band information of transmitting user data bag successively demodulating and decoding.Such as, as showing the 3rd subband, the 5th subband and the 8th subband, control information is used for transmitting packet, the data of second user's receiving terminal demodulation second user's receiving terminal the 3rd subband, the 5th subband and the 8th subband, and respectively to the data decode after the 3rd subband, the 5th subband and the 8th subband demodulation, obtain the decoded result of three packets.

Consult Figure 20, Figure 20 is the application's second user's transmitting terminal structural representation of an execution mode again.In present embodiment, second user's transmitting terminal comprises: processor 2010, transmitter 2020 and memory 2030.Wherein, processor 2010 connects respectively transmitter 2020 and memory 2030.

Processor 2010 is for being partly or entirely divided at least one subband by the mandate frequency spectrum of authorized user, the equal and opposite in direction of each subband, before dispatching cycle, the Data Modulation of local terminal is become to packet, the size of each packet is no more than carried of the data volume of minimum shared cell, wherein, be the minimum time unit that carries out a data packet transmission dispatching cycle; The frequency spectrum detection time in dispatching cycle, in the mandate frequency spectrum of detection authorized user, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used, wherein, described idle subband is the subband of authorization user signal lower than threshold value, and each idle subband is greater than or equal to a frequency resource that minimum shared cell is shared; If there is at least one idle subband, determine the mapping relations of described idle subband and described packet.

Described transmitter 2020, for the frequency spectrum share time in described dispatching cycle, is mapped to corresponding idle subband by described packet according to determined mapping relations, to send described packet to opposite end by described idle subband.

Described memory 2030 is for storing routine and related data.

Particularly, be that authorized user system is set in advance the dispatching cycle of authorized user, carries out the minimum time unit of a data packet transmission, i.e. the minimum time of a complete data packet transmission.Such as, in 3GPP LTE system and worldwide interoperability for microwave access (WiMAX, WorldwideInteroperability for Microwave Access) system, be 1 subframe dispatching cycle, 3GPPLTE mono-subframe lengths is 1 millisecond, and be 1 millisecond the dispatching cycle of 3GPP LTE.Second user's transmitting terminal, determining after the mandate frequency spectrum of sharing 3GPP LTE system, is set the user's that obtains the authorization dispatching cycle according to 3GPP LTE agreement.And the subframe lengths of worldwide interoperability for microwave access (WiMAX, Worldwide Interoperability for Microwave Access) system can be 2 milliseconds, 2.5 milliseconds, 4 milliseconds, 5 milliseconds, 8 milliseconds, 10 milliseconds, 12.5 milliseconds, 20 milliseconds etc.The subframe lengths of WiMAX system is broadcasted away by downlink signaling by the base station in WiMAX system, second user's transmitting terminal is being determined after the mandate frequency spectrum of sharing WiMAX system, obtain the authorization in the downlink signaling of the base station from WiMAX system user's subframe lengths, thus the dispatching cycle of WiMAX system obtained.

The time of a dispatching cycle is divided into frequency spectrum detection time, data processing time, frequency spectrum share time and At All Other Times by processor 2010.Wherein, the frequency spectrum detection time is that second user's transmitting terminal takies to the subband of authorized user the time period that situation detects.Data processing time mainly comprises frequency spectrum detecting result processing, and generates control information and packet mapping relations etc.The frequency spectrum share time is to share authorized user resource for second user's transmitting terminal, to transmit the time of packet.Second user's transmitting terminal is determined the time not using At All Other Times, for example, survey (Sounding) signal time, and the detectable signal time sends detectable signal for authorizes user terminal.

Referring again to Fig. 3, in 3GPP LTE system, be 1 millisecond the dispatching cycle of authorized user, in the time adopting general cyclic prefix (CP, Cyclic Prefix), comprises symbol #0 ~ #13 totally 14 symbols each dispatching cycle.Wherein, corresponding a period of time of each symbol.Second user's transmitting terminal determines that the corresponding time of symbol #0 is the frequency spectrum detection time, the corresponding time of symbol #1 is data processing time, and the corresponding time of symbol #13 is that authorized user is for sending the time of detectable signal, the frequency spectrum that the frequency spectrum that the time that symbol #13 is corresponding takies and corresponding time of symbol #0～symbol #12 take is different, thus processor 2010 determine symbol #2 ~ #12 totally 11 corresponding time of symbol as can be for the frequency spectrum share time of second user's transmitting terminal in the LTE dispatching cycle.Or, if shared time frequency spectrum detection time more in short-term, processor 2010 is determined time and the frequency spectrum detection time that the corresponding time of symbol #0 is data processing, and symbol #1 ~ #12 totally 12 corresponding time of symbol as can be for the frequency spectrum share time of second user's transmitting terminal in dispatching cycle, the symbolic number that the frequency spectrum share time that, processor 2010 acquires comprises is 12.Be understandable that, if when data processing time needs the long time, also can take several symbols more, can be for the corresponding minimizing of frequency spectrum share time of second user's transmitting terminal.In another embodiment, if adopt expansion CP, comprise 12 symbols each dispatching cycle, can be by the corresponding symbol #0 time for frequency spectrum detection, the corresponding symbol #1 time is used for to data processing, the corresponding time of symbol #2～#10 is the frequency spectrum share time that second user's transmitting terminal is used, that is, the symbolic number that the frequency spectrum share time that processor 2010 acquires comprises is 9.

Processor 2010 will partly or entirely be divided at least one subband in the mandate frequency spectrum of authorized user, the equal and opposite in direction of each subband, and each subband comprises at least one subcarrier.See also Fig. 4 and Fig. 5, the partial frequency spectrum of the mandate frequency spectrum of authorized user is divided into multiple equal-sized subbands by processor 2010, and these subbands are that second user's transmitting terminal is with the shared frequency spectrum resource of authorized user mode.In the present embodiment, the bandwidth of subband is the sub-carrier number that 4 Resource Block (RB, Resource Block) comprise, and each Resource Block comprises 12 subcarriers.Therefore a sub-carrier number=12 × 4=48 that, subband comprises.In other execution mode, the quantity of the subcarrier that the Resource Block quantity that subband comprises and each Resource Block comprise all can arrange according to actual needs voluntarily, does not enumerate herein.

The sub-band division method that described processor 2010 is one or more equal-sized subbands by part or all of authorized user mandate spectrum division, be that authorized user frequency spectrum comprises several subbands, the starting and ending position of each subband in authorized user frequency spectrum is that second user's transmitting terminal and opposite end are in common knowledge.

Preferably, processor 2010 using in authorized user frequency spectrum except for transmitting remainder frequency spectrum upstream control signaling as can be for the second user terminal with the shared authorized user frequency spectrum resource of the second user mode.

Processor 2010 obtains after the sub-carrier number that symbolic number that the frequency spectrum share time comprises and subband comprise, and can calculate the available resources number of minimum shared cell.Wherein, minimum shared cell refers in a dispatching cycle and a subband and can offer the shared running time-frequency resource number of second user's transmitting terminal.

Available resources number × order of modulation ÷ code rate of carried of the data volume=minimum shared cell of minimum shared cell.Thereby processor 2010 need obtain respectively available resources number, order of modulation and the code rate of minimum shared cell.

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

Secondly, processor 2010 obtains order of modulation according to the modulation system of data.Second user's transmitting terminal can be known its corresponding order of modulation after acquisition modulation system.Such as: table 1 shows the conventional corresponding order of modulation of modulation system.Specifically refer to table 1, do not repeat to repeat herein.

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

Finally, processor 2010 calculates carried of the data volume of a minimum shared cell according to available resources number, modulation system and the coded system of a minimum shared cell.

Before dispatching cycle, processor 2010 is in advance by the MAC(Media Access Control that comprises user data of local terminal) layer data bag cuts apart or is cascaded as size and be no more than a minimum shared cell and can carry the packet of data volume, and this packet is encoded and modulated according to predetermined coded system and modulation, the size of the each packet after coding and modulation is no more than carried of the data volume of a minimum shared cell.And the size of the packet of the minimum shared cell of the use first kind is no more than the minimum shared cell of the first kind can carry data volume; Correspondingly, the size of the packet of the minimum shared cell of use Equations of The Second Kind is no more than the minimum shared cell of Equations of The Second Kind and can carries data volume.Each dispatching cycle, there is at the most a packet that uses the minimum shared cell of Equations of The Second Kind.

Second user's transmitting terminal, obtaining after subframe timing, according to predefined mode (take LTE as example, i.e. the defined time division methods of LTE standard), can obtain the initial time of the each symbol of second user's transmitting terminal.Whether processor 2010 detects in the signal energy of each subband of corresponding time period of first symbol to authorized user, occupied to determine described subband.

Take Fig. 8 as example, the initial time of the first symbol is deducted the half of CP/2(CP by processor 2010) as initial time, signal in the system bandwidth of authorized user is carried out to fast Fourier transform, in the result from fast Fourier transform, extract the signal energy of each subband.Wherein, can only do fast Fourier transform to obtain the signal energy situation of subband to a symbol.If the energy of subband is greater than the threshold value of setting, the authorized user terminal of subband is shared, otherwise, subband do not have occupied, can be for transmitting control information or the user data of second user's transmitting terminal.

Processor 2010 judges whether to exist 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 an idle subband detected, just can utilize this idle subband control information transmission and user data; If there is no the minimum shared cell of Equations of The Second Kind, has at least two idle subbands just can carry out transfer of data, and wherein at least one idle subband is for control information transmission, and all the other idle subbands are for transmitting user data.

Whether processor 2010 judgements are less than the quantity of user data package for the quantity of the idle subband of transmitting user data bag; If be less than the quantity of user data package for the idle number of sub-bands of transmitting user data bag, 2010 of processors are selected to be less than or equal to the user data package for the idle number of sub-bands of transmitting user data bag from all customer data bag, and each packet is mapped to one for transmitting the idle subband of packet; If be greater than or equal to the quantity of user data package for the idle number of sub-bands of transmitting user data bag, be left intact.

Particularly, if there is the minimum shared cell of Equations of The Second Kind, for transmitting the quantity of the idle subband that the quantity of idle subband of packet equals to detect; If there is no the minimum shared cell of Equations of The Second Kind, subtracts one for transmitting the idle sub band number that the quantity of idle subband of packet equals to detect.Processor 2010 is selected to be less than or equal to the packet of the idle sub band number for transmitting packet for the transmission of this dispatching cycle.

Such as, if there is the minimum shared cell of Equations of The Second Kind, and the quantity of the minimum shared cell of Equations of The Second Kind is 1, the quantity of idle subband is 4, user data package quantity is 8, processor 2010 selects 4 user data to wrap in this dispatching cycle of transmission, wherein, if the minimum shared cell of use Equations of The Second Kind, must select a user data package that is no more than the minimum shared cell of Equations of The Second Kind can bearing capacity, and this user data package and the shared idle subband of 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, and processor 2010 selects 3 user data to wrap in this dispatching cycle of transmission, and a remaining idle subband is for control information transmission.

Processor 2010 is selected to be less than or equal to for the system of selection of the user data package of the idle number of sub-bands of transmitting user data bag from all customer data bag, if there is the minimum shared cell of Equations of The Second Kind, select a user data package that is less than or equal to the minimum data volume that shared cell carries of Equations of The Second Kind for transmitting at Equations of The Second Kind shared cell; Then select to equal (idle number of sub-bands-1) individual user data package from remaining users packet, the system of selection of these user data package can be to select according to transmission priority, for example select (idle number of sub-bands-1) user data package that transmission priority is the highest, or according to the arrival physical layer time of user data package, select (idle number of sub-bands-1) the individual user data package reaching the earliest; If there is no the minimum shared cell of Equations of The Second Kind, from all packets, select (idle number of sub-bands-1) individual user data package, the system of selection of these user data package can be to select according to transmission priority, for example select (idle number of sub-bands-1) user data package that transmission priority is the highest, or according to the arrival physical layer time of user data package, select (idle number of sub-bands-1) the individual user data package reaching the earliest.

First processor 2010 selects the subband of an idle subband as control information transmission.All the other subbands are for transmitting user data bag.Idle subband of described selection is as the method for the subband of control information transmission, be specially, select the subband of first idle subband as control information transmission, or select the idle subband of energy minimum as the subband of control information transmission, or select the subband of last idle subband as control information transmission, or select an idle subband of the most close centre frequency as the subband of control information transmission.

If have the minimum shared cell of Equations of The Second Kind, and the quantity of user data package equals idle number of sub-bands.First processor 2010 selects one of them to be not more than the minimum shared cell of the Equations of The Second Kind packet that carries ground data volume and to be mapped to the remainder of the idle subband of control information transmission, and all the other each user data package are mapped to an idle subband.If have 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.First processor 2010 selects one of them to be not more than the minimum shared cell of the Equations of The Second Kind packet that carries ground data volume and to be mapped to the remainder of the idle subband of control information transmission, the idle subband of selecting to equal again remaining user data package quantity, all the other each user data package are mapped to selected idle subband successively.

If there is no the minimum shared cell of Equations of The Second Kind, and the quantity of user data package equals idle number of sub-bands and deducts the idle number of sub-bands for control information transmission, and the quantity of user data package equals idle number of sub-bands and subtracts one.Processor 2010 is after the subband of having selected for control information transmission, and all the other each user data package are mapped to an idle subband.

If there is no 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 and deducts the idle number of sub-bands for control information transmission, and the quantity of user data package is less than idle number of sub-bands and subtracts one.Processor 2010, after the subband of having selected for control information transmission, is selected to equal the idle subband of user data package quantity, and each user data package is mapped to selected idle subband successively in all the other idle subbands.

See also Fig. 9, there is shown packet is mapped to the situation after idle subband.As shown in Figure 9, in a dispatching cycle, the mandate frequency spectrum of authorized user comprises 11 subbands, comprising: 5 unavailable subbands and 6 idle subbands.First processor 2010 selects first idle subband in 6 idle subbands for control information transmission, and remaining 5 idle subbands are for transmitting user data bag.If user data package quantity is 3, from 5 idle subbands, select 3 idle subbands of energy minimum for transmitting user data bag.Wherein, unavailable subband is other subbands except idle subband in authorized user frequency spectrum, comprise the busy subband detecting, and in authorized user frequency spectrum, can not be used for the subband that the second user is shared, as some or all of for the frequency resource of transmitting physical ascending control channel (PUCCH).

Determining after the mapping relations of user data package and idle subband, processor 2010 is according to the mapping relations of user data package and idle subband, generate control information, control information comprises for representing which subband has carried the information of user data package, wherein a kind of method for expressing is, indicate certain subband whether to have mapping user data package with 1 bit respectively, " 0 " represents not shine upon user data package if, and " 1 " represents to have shone upon user data package.Take Fig. 9 as example, totally 11 subbands, represent mapping relations with 11 Bit datas, and the control information generating according to the mapping relations of Fig. 9 is: 00101001000.

Further, processor 2010, generating after control information, is modulated control information and encode according to predefined format mode.The size of control information packet after modulation and coding is no more than the data volume that the idle subband of control information transmission can carry.

The modulation coding mode of control information is that system is arranged in advance, and such as modulation system is QPSK modulation, coded system is 1/3 tail-biting convolutional code.Processor 2010 is first according to the agreement of the RE of the RE of the bear control information in the idle subband of control information transmission and carrying reference signal, calculate the size of the RE of the bear control information of the idle subband that is used for control information transmission, after the control information data through-rate coupling after encoding, make control information data fill up the RE for the bear control information in the idle subband of control information transmission.

Further, processor 2010 is linked into authorized user network with authorization, and from the system broadcast message of Serving cell, obtain this community and whether adopted frequency hopping in subframe, and the parameter of frequency hopping.Concrete, for LTE, processor 2010 is linked into cellular network in authorized user mode, from the system information block message of Serving cell, separate Physical Uplink Shared Channel common configuration parameter (PUSCH-ConfigCommon), whether the user who obtains cellular basestation adopts the parameter (intra-subframe hopping) of frequency hopping in subframe.Further, can also obtain Physical Uplink Shared Channel frequency hopping side-play amount (pusch-HoppingOffset).In with subframe frequency-hopping mode communication in the situation that, in the first time slot of frequency spectrum share time in a dispatching cycle, according to determined mapping relations, control information and packet be mapped to corresponding idle subband and send to opposite end, at the second time slot, packet be mapped to the corresponding idle subband after the corresponding frequency hopping of the determined idle subband of the first time slot and send to opposite end.Particularly, if the shared authorized user of processor 2010 has adopted frequency hopping in subframe, at authorized user front 1 time slot (front 0.5ms) of dispatching cycle, processor 2010 is mapped to corresponding idle subband by packet by definite mapping relations, at authorized user second time slot of dispatching cycle, at the idle subband of first time slot, respectively according to the pattern of frequency hopping in subframe, correspond to frequency hopping subband in corresponding subframe, processor 2010 by packet at authorized user second time slot of dispatching cycle, be mapped to respectively on idle subband at the first time slot idle subband after according to frequency hop pattern frequency hopping.Because authorized user has adopted frequency hopping in subframe, authorized user can arrive new frequency in the second time slot frequency hopping according to fixing frequency hop pattern at the shared frequency spectrum of the first time slot.Therefore, corresponding, idle subband also can carry out frequency hopping according to frequency hop pattern.Take Figure 15 as example, second user's transmitting terminal detects 6 idle subbands at first time slot of dispatching cycle, be respectively subband 3,4,6,9,10,11, wherein first idle subband is that subband 3 is used for control information transmission, remains 5 idle subbands convey data packets 1～packets 5 respectively.In subframe when frequency hopping, suppose that frequency-hopping mode moves down 6 subbands for circulation, the subband after subband 3,4,6,9,10,11 corresponding frequency hoppings is 9,10,12,3,4,5.At first time slot of dispatching cycle, idle subband for control information transmission is mapped to subband 6, packet 1～packet 5 is mapped to respectively subband 4,6,9,10,11, at second time slot of dispatching cycle, idle subband for control information transmission is mapped to subband 9, and packet 1～packet 5 is mapped to respectively subband 10,12,3,4,5.Or, if authorized user has adopted frequency hopping in subframe, can also be further, to change 1 time slot (0.5ms) dispatching cycle into, the time started of each time slot is frequency spectrum perception and data processing time, and for first time slot, the time finishing to the first time slot from data processing time is the frequency spectrum share time, for the second time slot, it is the frequency spectrum share time from data processing time to the Sounding sign-on time.

Consult Figure 21, Figure 21 is the structural representation of the application's second another execution mode of user's receiving terminal.Second user's receiving terminal of present embodiment comprises: receiver 2110, processor 2120 and memory 2130.Wherein, processor 2120 connects respectively receiver 2110 and memory 2130.

Receiver 2110 is for receiving second user's transmitting terminal in the frequency spectrum share time, the packet that utilizes the idle subband of authorizing frequency spectrum to send, and wherein, packet comprises control information packet and user data package.Particularly, receiver 2110 for searching for successively in the subband of the mandate frequency spectrum of authorized user, and to obtain the idle subband for control information transmission, receiver 2110 sends Search Results to processor 2120.Such as, receiver 2110 according to second user's transmitting terminal in advance the subband coding rule of agreement (as subband numbered from high to low according to frequency, or numbering from low to high, or antithetical phrase band is numbered from centre frequency to both sides etc.), successively from the subband of most probable control information transmission, according to subband coding rule, search for successively the subband of control information transmission.If agreement second user's transmitting terminal, from low frequency, is mapped to first idle subband to send to second user's receiving terminal by control information.Second user's receiving terminal is corresponding is numbered to high-frequency antithetical phrase band from low frequency, then brings line search into according to the order antithetical phrase of numbering.

Described receiver 2110 is searched for the subband of control information transmission successively in the subband in the mandate frequency spectrum of authorized user, be further, the second user, according to subband coding rule, first judges whether first subband has control information transmission, if had, the subband that this subband is control information transmission, if no, judge whether second subband has control information transmission, and the rest may be inferred, until find the subband of control information transmission, or all subbands are searched for.

Processor 2120 is for receiving described Search Results, and the control information packet in the idle subband for control information transmission is carried out to demodulating and decoding, to obtain control information, obtains the subband of transmitting user data bag according to control information.

Particularly, processor 2120 is for according to the size of the idle subband of predefined control information transmission and reference signal transmission rule, the reference signal position that local reference signal is corresponding to the subband receiving is carried out relevant, and judge whether relevant peak value is greater than threshold value, and in the time that relevant peak value is greater than threshold value, data in subband are carried out to demodulating and decoding, to obtain the data in subband, then, processor 2120 judges that whether the data in subband are effective, and data validation in subband is when effective, the data in subband are as control information.Such as, according to control information transmission subband size and control information reference signal transmission rule, with local reference signal and the reception signal correction that detects subband, if relevant peaks is greater than threshold value,, according to control information packet mapping ruler, the data in this subband of demodulation, if the data validation after demodulating and decoding is effective control information, think and searched control information, this subband is control information subband.Described confirmation data effective method, is specially, and decoded result is correct, and as CRC check is passed through, or further, the correct and control information that solves of decoded result, in valid value range, thinks that data are effective.

Processor 2120 is for the user data to obtain according to the user data package in the subband of the each transmitting user data bag of the sub-band information of transmitting user data bag successively demodulating and decoding.Such as, if control information is " 00101001000 ", wherein, " 0 " represents that this subband is not used in transmitting user data bag, " 1 " represents that this subband is for transmitting user data bag, and this control information represents that the 3rd subband, the 5th subband and the 8th subband are for transmitting user data bag.The data of processor 2120 demodulation second user's receiving terminal the 3rd subbands, the 5th subband and the 8th subband, and respectively to the data decode after the 3rd subband, the 5th subband and the 8th subband demodulation, obtain the decoded result of three packets.

Memory 2130 is for storing routine and related data.

Also provide a kind of spectra sharing system based on above-mentioned the second user terminal and receiving terminal the application one execution mode, spectra sharing system comprises: comprise at least one second user's transmitting terminal and at least one second user's receiving terminal, wherein, the mandate frequency spectrum that second user's transmitting terminal can be shared described authorized user with second user's receiving terminal communication.

More than be appreciated that, modulate and encode by advance packet being carried to data volume according to minimum shared cell, save the data processing time of carrying out again Data Segmentation modulating-coding etc. after the frequency spectrum share time detecting, thereby can directly packet be shone upon detecting after idle subband, without waiting for tediously long data processing time, therefore, realize the process that completes frequency spectrum detection and frequency spectrum share within a shorter dispatching cycle, can make the second user terminal can realize the uplink frequency spectrum resource that detects and use the fast-changing authorized user of frequency spectrum within a dispatching cycle, effectively improve the utilance of frequency spectrum.On the other hand, packet of the present invention is can carry data volume according to minimum shared cell modulate and encode, and minimum shared cell is set to be no more than an idle subband size on frequency domain, make to shift to an earlier date the idle subband that ready packet can adapt to detect, the problem that the data that can not exist packet to be greater than idle subband and to cause cannot be transmitted, in the time that minimum shared cell is set to equal an idle subband size on frequency domain, packet equals the size of idle subband, can not exist packet to be less than the free time band waste problem that idle subband causes.

The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of unit wherein to realize the object of present embodiment scheme.

In addition, the each functional unit in each execution mode of the application can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.

If described integrated unit is realized and during as production marketing independently or use, can be stored in a computer read/write memory medium using the form of SFU software functional unit.Based on such understanding, the all or part of of the part that the application's technical scheme contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) or processor (processor) carry out all or part of step of method described in each execution mode of the application.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CDs.

The foregoing is only embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims

1. uplink frequency spectrum resource is shared a method, it is characterized in that, comprises the steps:

To in the mandate frequency spectrum of authorized user, partly or entirely be divided at least one subband, the equal and opposite in direction of each subband;

Before dispatching cycle, the Data Modulation of local terminal is become to packet, the size of each packet is no more than carried of the data volume of minimum shared cell, and wherein, be the minimum time unit that carries out a data packet transmission dispatching cycle;

The frequency spectrum detection time in dispatching cycle, in the mandate frequency spectrum of detection authorized user, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used, wherein, described idle subband is the subband of authorization user signal lower than threshold value, and each idle subband is greater than or equal to a frequency resource that minimum shared cell is shared;

If there is at least one idle subband, determine the mapping relations of described idle subband and described packet, and frequency spectrum share time in described dispatching cycle, described packet is mapped to corresponding idle subband according to determined mapping relations, to send described packet to opposite end by described idle subband.

2. method according to claim 1, is characterized in that, the described Data Modulation by local terminal becomes the step of packet to comprise before:

Calculate carried of the data volume of described minimum shared cell, wherein, available resources number × order of modulation ÷ code rate of carried of the data volume of described minimum shared cell=minimum shared cell.

3. method according to claim 2, is characterized in that, before the step of carried of the data volume of the minimum shared cell of described calculating, comprises the steps:

Obtain the symbolic number that the described frequency spectrum share time comprises;

Obtain the sub-carrier number that described subband comprises;

Calculate the available resources number that described minimum shared cell comprises, the available resources number that described minimum shared cell comprises equals the number of resources that described minimum shared cell comprises and deducts the number of resources for transmission of reference signals, if the described minimum shared cell minimum shared cell that is the first kind, the number of resources that the minimum shared cell of the described first kind comprises equals the product of the symbolic number that sub-carrier number that described subband comprises and described frequency spectrum share time comprises; If the described minimum shared cell minimum shared cell that is Equations of The Second Kind, the number of resources that the minimum shared cell of described Equations of The Second Kind comprises equals the product of the symbolic number that the difference of sub-carrier number of sub-carrier number that described subband comprises and control information transmission and described frequency spectrum share time comprises.

4. method according to claim 1, is characterized in that, the step that whether exists at least one can supply with the idle subband of second user's transmitting terminal use in the mandate frequency spectrum of described detection authorized user comprises:

Frequency spectrum detection time in the described dispatching cycle situation that takies of the each subband to described authorized user detects, and can supply with to determine whether to exist the idle subband that described second user's transmitting terminal is used;

If all described subbands are all occupied, do not exist and can supply with the idle subband that described second user's transmitting terminal is used; If there have subband not have to be occupied, exist and can supply with the idle subband that described second user's transmitting terminal is used.

5. method according to claim 4, is characterized in that, the situation that takies of the each subband of described frequency spectrum detection time in described dispatching cycle to described authorized user is carried out detecting step and comprised:

Whether the signal energy of the each subband to described authorized user of the frequency spectrum detection time in described dispatching cycle detects, occupied to determine described subband;

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

6. method according to claim 1, is characterized in that, the mapping relations of described definite idle subband and packet comprise:

Select the idle subband of one of them idle subband as control information transmission, and using all the other idle subbands as the idle subband for transmitting packet;

Specified data bag and the mapping relations of idle subband for transmitting packet.

7. method according to claim 6, is characterized in that, described specified data bag comprises with the mapping relations of the idle subband for transmitting packet:

Whether judgement is less than the quantity of described user data package for the quantity of the idle subband of transmitting user data bag;

If be less than the quantity of described user data package for the idle number of sub-bands of transmitting user data bag, from all customer data bag, select to be less than or equal to the user data package for the idle number of sub-bands of transmitting user data bag, each packet is mapped to one for transmitting the idle subband of packet; If be greater than or equal to the quantity of user data package for the idle number of sub-bands of transmitting user data bag, from the idle subband of be useful on transmission packet, select to equal the idle subband for data packet number, each packet is mapped to a selected idle subband.

8. method according to claim 6, is characterized in that, described specified data bag comprises the steps: with the mapping relations step of the idle subband for transmitting packet afterwards

Mapping relations according to packet with the idle subband for transmitting packet, generate control information, and wherein, which subband described control information is used to indicate for transmitting packet.

9. method according to claim 8, is characterized in that, after described generation control information step, comprises the steps:

It is control information physical layer data bag that described control information is carried out to modulating-coding according to predefined form, and in the frequency spectrum share time of described dispatching cycle, is mapped to the subband for control information transmission, to send to described opposite end.

10. method according to claim 6, it is characterized in that, the described frequency spectrum share time in dispatching cycle, is mapped to corresponding idle subband by described packet according to determined mapping relations, comprises with the step that sends described packet by described idle subband to opposite end:

In with subframe frequency-hopping mode communication in the situation that, in the first time slot of frequency spectrum share time in a described dispatching cycle, according to determined mapping relations, described control information and packet be mapped to corresponding idle subband and send to described opposite end, at the second time slot, described packet be mapped to the corresponding idle subband after the corresponding frequency hopping of the determined idle subband of described the first time slot and send to described opposite end.

11. 1 kinds of uplink frequency spectrum resources are shared method, it is characterized in that, comprise the steps:

Receive second user's transmitting terminal in the frequency spectrum share time, the packet that utilizes the idle subband of authorizing frequency spectrum to send, wherein, described packet comprises control information packet and user data package.

12. methods according to claim 11, is characterized in that, described reception second user's transmitting terminal is in the frequency spectrum share time, and the packet step of utilizing the idle subband of authorizing frequency spectrum to send comprises the steps:

In subband in the mandate frequency spectrum of described authorized user, search for successively, to obtain the idle subband for control information transmission packet;

Carry out demodulating and decoding to described for the control information packet in the idle subband of control information transmission packet, to obtain control information;

Obtain the subband of transmitting user data bag according to described control information, and obtain described user data package from the subband of described transmitting user data bag.

13. methods according to claim 12, is characterized in that, described control information in idle subband are carried out to demodulating and decoding, before obtaining control information step, comprise the steps:

According to the size of the idle subband of predefined control information transmission and reference signal transmission rule, the reference signal position that local reference signal is corresponding to the subband receiving is carried out relevant;

Judge whether relevant peak value is greater than threshold value, if relevant peak value is greater than threshold value, the packet in described subband is carried out to demodulating and decoding, to obtain the data in described subband;

Judge that whether the data in described subband are effective, if the data validation in described subband is effective, the data in described subband are as control information.

14. a kind of second user's transmitting terminal, is characterized in that, comprising: divide module, data processing module, detection module, mapping relations determination module and sending module,

Described division module for by the mandate frequency spectrum of authorized user be partly or entirely divided at least one subband, the equal and opposite in direction of each subband, described division module sends division result to detection module;

Described data processing module is used for receiving described division result, before dispatching cycle, the Data Modulation of local terminal is become to packet, the size of each packet is no more than carried of the data volume of minimum shared cell, wherein, be the minimum time unit that carries out a data packet transmission dispatching cycle, and described data processing module sends described packet to sending module;

Described detection module is for the frequency spectrum detection time in dispatching cycle, in the mandate frequency spectrum of detection authorized user, whether exist at least one can supply with the idle subband that second user's transmitting terminal is used, wherein, described idle subband is the subband of authorization user signal lower than threshold value, and each idle subband is greater than or equal to a frequency resource that minimum shared cell is shared, described detection module sends testing result to described mapping relations determination module;

Described mapping relations determination module, in the time there is at least one idle subband, is determined the mapping relations of described idle subband and described packet, and described mapping relations is sent to described sending module;

Described sending module is used for receiving described packet and described mapping relations, and in frequency spectrum share time of described dispatching cycle, described packet is mapped to corresponding idle subband according to determined mapping relations, to send described packet to opposite end by described idle subband.

15. second user's transmitting terminals according to claim 14, it is characterized in that, described terminal comprises computing module, described computing module is for calculating carried of the data volume of described minimum shared cell, available resources number × order of modulation ÷ code rate of wherein, carried of the data volume of described minimum shared cell=minimum shared cell.

16. second user's transmitting terminals according to claim 15, is characterized in that, described computing module comprises: symbol acquiring unit, subcarrier acquiring unit and computing unit;

Described symbol acquiring unit is for obtaining the symbolic number that the described frequency spectrum share time comprises, and the symbolic number that described symbol acquiring unit comprises the described frequency spectrum share time sends to described computing unit;

Described subcarrier acquiring unit is for obtaining the sub-carrier number that described subband comprises;

The sub-carrier number that described computing unit comprises for receiving symbolic number that the described frequency spectrum share time comprises and described subband, and calculate the available resources number that described minimum shared cell comprises, the available resources number that described minimum shared cell comprises equals the number of resources that described minimum shared cell comprises and deducts the number of resources for transmission of reference signals, if described minimum shared cell is first kind minimum shared cell, the number of resources that the minimum shared cell of the described first kind comprises equals the product of the symbolic number that sub-carrier number that described subband comprises and described frequency spectrum share time comprises, if the described minimum shared cell minimum shared cell that is Equations of The Second Kind, the number of resources that the minimum shared cell of described Equations of The Second Kind comprises equals the product of the symbolic number that the difference of sub-carrier number of sub-carrier number that described subband comprises and control information transmission and described frequency spectrum share time comprises.

17. second user's transmitting terminals according to claim 14, it is characterized in that, described detection module also detects for the situation that takies of each subband of the frequency spectrum detection time in described dispatching cycle to described authorized user, can supply with to determine whether to exist the idle subband that described second user's transmitting terminal is used; And in the time that all described subbands are all occupied, determine not exist and can supply with the idle subband that described second user's transmitting terminal is used; And there being subband not have when occupied, determine that existence can supply with the idle subband that described second user's transmitting terminal is used.

18. second user's transmitting terminals according to claim 17, it is characterized in that, whether described detection module also detects for the signal energy of each subband of the frequency spectrum detection time in described dispatching cycle to described authorized user, occupied to determine described subband; And be more than or equal to threshold value in the signal energy of described subband, determine that described subband is occupied; And in the time that the signal energy of described subband is less than threshold value, determine that described subband does not have occupied.

19. second user's transmitting terminals according to claim 14, it is characterized in that, described mapping relations determination module is also for selecting the idle subband of one of them idle subband as control information transmission, and using all the other idle subbands as the idle subband for transmitting packet, and specified data bag and the mapping relations of idle subband for transmitting packet.

20. second user's transmitting terminals according to claim 19, is characterized in that, described mapping relations determination module comprises: judging unit and mapping relations determining unit;

Described judging unit is for judging the quantity that whether is less than described user data package for the quantity of the idle subband of transmitting user data bag, and described judging unit sends judged result to described mapping relations determining unit;

22. second user's transmitting terminals according to claim 21, it is characterized in that, described mapping relations determination module is also control information physical layer data bag for described control information is carried out to modulating-coding according to predefined form, and in frequency spectrum share time of described dispatching cycle, be mapped to the subband for control information transmission, to send to described opposite end.

23. second user's transmitting terminals according to claim 19, it is characterized in that, described sending module comprises frequency hopping unit, described frequency hopping unit is in subframe frequency-hopping mode communication in the situation that, in the first time slot of frequency spectrum share time in a described dispatching cycle, according to determined mapping relations, described control information and packet are mapped to corresponding idle subband and send to described opposite end, at the second time slot, described packet be mapped to the corresponding idle subband after the corresponding frequency hopping of the determined idle subband of described the first time slot and send to described opposite end.

24. a kind of second user's receiving terminal, is characterized in that, comprising:

Receiver module, for receiving second user's transmitting terminal in the frequency spectrum share time, the packet that utilizes the idle subband of authorizing frequency spectrum to send, wherein, described packet comprises control information packet and user data package.

25. second user's receiving terminals according to claim 24, is characterized in that, described receiver module comprises: control information receiver module and user data receiver module;

Described control information receiver module is used for receiving described second user's transmitting terminal in the frequency spectrum share time, the control information packet that utilizes the idle subband of authorizing frequency spectrum to send;

Described user data receiver module is used for receiving described second user's transmitting terminal in the frequency spectrum share time, the user data package of utilizing the idle subband of authorizing frequency spectrum to send.

26. second user's receiving terminals according to claim 25, it is characterized in that, described control information receiver module comprises: search unit and control information demodulating and decoding unit, and described user data receiver module comprises: control information acquiring unit and user data demodulating and decoding unit;

Described search unit for searching for successively in the subband of the mandate frequency spectrum of described authorized user, and to obtain the idle subband for control information transmission, described search unit sends described Search Results to described control information demodulating and decoding unit;

Described control information demodulating and decoding unit is used for receiving described Search Results, and carry out demodulating and decoding to described for the control information packet in the idle subband of control information transmission, to obtain control information, obtain the subband of transmitting user data bag according to described control information, and the sub-band information of described transmitting user data bag is sent to described user data receiver module;

The sub-band information of the transmitting user data bag that described control information acquiring unit sends for receiving control information receiver module, and issue user data demodulating and decoding unit;

Described user data demodulating and decoding unit is the user data to obtain according to the user data package in the subband of the each transmitting user data bag of the sub-band information of transmitting user data bag successively demodulating and decoding.

27. second user's receiving terminals according to claim 26, is characterized in that, described control information demodulating and decoding unit comprises: correlation unit, the first judging unit and the second judging unit;

Described correlation unit is used for according to the size of the idle subband of predefined control information transmission and reference signal transmission rule, the local reference signal reference signal position corresponding to the subband receiving carried out relevant, described correlation unit by relevant peak value to described first judging unit send;

Described the first judging unit receives described relevant peak value, and judge whether relevant peak value is greater than threshold value, and in the time that relevant peak value is greater than threshold value, data in described subband are carried out to demodulating and decoding, to obtain the data in described subband, described the first judging unit sends the data in described subband to described the second judging unit;

Described the second judging unit receives the data in described subband, judges that whether the data in described subband are effective, and data validation in described subband is when effective, and the data in described subband are as control information.

28. 1 kinds of spectra sharing systems, it is characterized in that, comprise at least one second user's transmitting terminal and at least one second user's receiving terminal, wherein, the mandate frequency spectrum that described second user's transmitting terminal can be shared authorized user with described second user's receiving terminal communication, described second user's transmitting terminal is second user's transmitting terminal as described in claim 14-23.

29. systems according to claim 28, is characterized in that, described second user's receiving terminal is second user's receiving terminal as described in claim 24-27.