CN105634703A

CN105634703A - Indication method, indication system, obtaining method, obtaining system and communication system

Info

Publication number: CN105634703A
Application number: CN201510272332.XA
Authority: CN
Inventors: 朱亚军; 李明菊; 张云飞; 何成名
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2015-05-25
Filing date: 2015-05-25
Publication date: 2016-06-01
Anticipated expiration: 2035-05-25
Also published as: WO2016187931A1; CN105634703B

Abstract

The invention discloses an indication method and indication system of a control area on a channel clear assessment sub-frame, an obtaining method and obtaining system of the control area on the channel clear assessment sub-frame, a device with a base station function, a terminal and a communication system. The indication method of the control area on the channel clear assessment sub-frame comprises following steps: sending indication information to the terminal served by the device with the base station function; indicating the terminal to obtain the parameter information of the first control area on the channel clear assessment sub-frame from the indication information, wherein the parameter information comprises the first area length of the first control area and the first starting location of the first control area. Through the technical solution of the invention, the terminal can be clear about the starting location and the length of the control area on the CCA (channel clear assessment) sub-frame; a downlink control channel can be received timely and accurately; and the control signaling borne on the downlink control channel can be obtained accurately.

Description

Indicating means, instruction system, acquisition methods, acquisition system and communication system

Technical field

The present invention relates to communication technical field, detect the acquisition system of the control area in the instruction system of control area in the indicating means of control area in subframe, a kind of channel idle detection subframe, the acquisition methods of control area in a kind of channel idle detection subframe, a kind of channel idle detection subframe in particular to a kind of channel idle, a kind of there is the equipment of base station functions, a kind of terminal and a kind of communication system.

Background technology

Along with sharply increasing of message volume, the capacity of the existing wireless frequency spectrum distributing to mobile service cannot meet and require that. In the 3GPPRel-13 stage, the mechanism that one is called LAA (licensed-assistedaccess, the access technology of auxiliary) is introduced into. In LAA mechanism, the transmission of mobile communication can carry in unlicensed spectrum, such as the frequency range of 5GHz. And these unlicensed spectrums are presently mainly the systems such as Wi-Fi, bluetooth, radar, medical treatment and are using.

Due to the multiformity of system and complexity in unlicensed spectrum, directly the mechanism LTE (LongTermEvolution, Long Term Evolution) is the stability of safety and the connection that cannot ensure user in unlicensed spectrum. Therefore, in the mechanism of LAA, by CCA mechanism, use authority frequency spectrum helps the access in unlicensed spectrum. At present, using LTE in unlicensed spectrum, system can have two kinds of working methods, and one is to supplement descending (SDL, SupplementalDownlink), namely only has downlink transfer subframe; Another kind is TDD (TimeDivisionDuplex, time division duplex) pattern, has both comprised descending sub frame, sub-frame of uplink. Supplement descending this situation and can only be made by carrier aggregation technology use (as shown in Figure 1):

And in existing LAA system, LAA system, before taking unauthorized channel, first has to perform LBT (ListenBeforeTalk, listem-before-talk) mechanism. Namely need first to be CCA to detect to judge that whether channel is idle. If it is determined that channel idle, LAA system can busy channel, if it is determined that channel busy, LAA system could busy channel after needing to wait channel idle.

The mechanism of current LBT is divided into two kinds, a kind of (FBE being based on frame structure, Framedbasedequipment) LBT mechanism, under this mechanism, the cycle of LBT is fixing, and the time of CCA (channelclearassessment) is starting most of each cycle. Another is based on the LBT mechanism of (LBE, Loadbasedequipment) of load, and this mechanism cardinal principle is when load arrives, at once carries out Channel Detection, if detecting channel idle, then horse back sends data service; If detection channel busy, then randomly choosing a number N, in ensuing Channel Detection Time, if channel busy being detected, then N is constant, if detecting, channel is not busy, then N-1 when N is kept to 0, then can send data.

No matter it is which kind of LBE mechanism, owing to detecting that channel is not busy and can time of busy channel be likely to occur at any time, namely less than the boundary alignment with the subframe of LTE, so terminal cannot learn the down control channel PCFICH which position to start receiving CCA from, also cannot learn the size of control area simultaneously, thus also cannot learn PCFICH (PhysicalControlFormatIndicatorChannel, Physical Control Format Indicator Channel), PHICH (PhysicalHybirdARQIndicatorChannel, Physical HARQ Indicator Channel) and PDCCH (PhysicalDownlinkControlChannel, Physical Downlink Control Channel) etc. the original position of down control channel, it is illustrated in fig. 2 shown below, and then cause receiving down control channel PCFICH, the control signaling of PHICH and the upper carrying of (E) PDCCH, to carry out associative operation according to this control signaling.

Therefore, how to make terminal can specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly, become problem demanding prompt solution.

Summary of the invention

The present invention is based on the problems referred to above, propose a kind of new technical scheme, make terminal can specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

In view of this, an aspect of of the present present invention proposes the indicating means of the control area in a kind of channel idle detection subframe for having the equipment of base station functions, including: send instruction information to the terminal of the described device service with base station functions; Described terminal is indicated to obtain the parameter information of the first control area in described channel idle detection subframe from described instruction information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

In this technical scheme, by sending instruction information to the terminal of the device service with base station functions, and indicate terminal to obtain the parameter information of the first control area in channel idle detection subframe from instruction information, terminal can be made to obtain the length of the first control area and first start bit is put, and then enable the terminals to receive timely and accurately down control channel, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions, certainly, this terminal may be located at the small-cell at the equipment place with base station functions, the adjacent small-cell that the small-cell at the equipment place can also being positioned at and have base station functions is adjacent, as long as have the terminal of the device service of base station functions, additionally, the equipment with base station functions includes base station, by the microcell base station etc. that communication equipment (such as smart mobile phone etc.) realizes.

In technique scheme, preferably, also include: described instruction information includes: carry the radio resource control signaling that fixing first area length is put with fixing first start bit, media access control unit or physical layer signaling, or carry the radio resource control signaling that default first area length is put with the first start bit preset, media access control unit or physical layer signaling, and the described terminal to the described device service with base station functions sends the process of instruction information, specifically include: by authorizing frequency range or unauthorized frequency range to carry, to described in the transmission of described terminal, the radio resource control signaling that fixing first area length is put with fixing first start bit, media access control unit or physical layer signaling, or by authorizing frequency range or unauthorized frequency range to carry, to described in the transmission of described terminal, the radio resource control signaling that default first area length is put with the first start bit preset, media access control unit or physical layer signaling.

In this technical scheme, instruction information can be carry radio resource control signaling (the i.e. RRC that fixing first area length is put with fixing first start bit, RadioResourceControl), media access control unit (MACCE, or physical layer signaling MediumAccessControlControlElement), or carry the radio resource control signaling that default (namely changing) first area length is put with (the namely changing) first start bit preset, media access control unit or physical layer signaling, and by above-mentioned instruction information use authority frequency range or unauthorized frequency range are sent to terminal, can enable the terminals to receive down control channel timely and accurately, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions.

In technique scheme, preferably, also include: described instruction information includes: need to by authorizing the physical layer signaling of frequency range transmission, or the corresponding relation of the second area length of the second control area in mandate frequency range and described first area length, the corresponding relation that second original position and described first start bit are put, and the described terminal to the described device service with base station functions sends the process of instruction information, specifically include: by authorizing frequency range to send described physical layer signaling to described terminal, so that described terminal obtains described first area length by described physical layer signaling and described first start bit is put, or by authorizing frequency range to send the corresponding relation of described second area length and described first area length to described terminal, the corresponding relation that described second original position and described first start bit are put.

In this technical scheme, instruction information can also is that the physical layer signaling need to put by the first area length carrying the first control area authorizing frequency range to send and first start bit, or the corresponding relation of the second area length of the second control area in mandate frequency range and first area length, the corresponding relation that second original position and first start bit are put, and by above-mentioned instruction information is sent to terminal by mandate frequency range, terminal can be made directly to obtain the first area length of this first control area from above-mentioned physical layer signaling and first start bit is put, or the corresponding relation according to the second area length in the frame structure authorized in frequency range with first area length, the corresponding relation that second original position and first start bit are put extrapolates the first area length of the first control area in CCA subframe and first start bit is put, thus enabling the terminals to receive timely and accurately down control channel, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions. such as: if the size of the first control area pre-defined in unlicensed spectrum is 1/3rd of the second control area size in Pcell (Primary-Cell main plot) the mandate frequency range used, and first the original position of control area be first OFDM symbol after CCA symbol, then when the second control area size in the Pcell mandate frequency range used is 3 OFDM symbol, the first control area that so terminal will be extrapolated according to the corresponding relation of second area length Yu first area length in the CCA subframe in unlicensed spectrum is 1 OFDM symbol, simultaneously, the original position of clear and definite first control area is first OFDM symbol after CCA,

Certainly, the instruction information that base station sends by authorizing frequency range can also include second area length and second original position of the second control area, or detected second area length and second original position of the second control area by terminal oneself.

In technique scheme, preferably, also include: described instruction information includes: preserved signal, wherein, described preserved signal includes for indicating the First ray value of described first area length and the second sequential value for indicating described first start bit to put, and the described terminal to the described device service with base station functions sends the process of instruction information, specifically include: when described channel idle detection subframe detects the down channel free time, described preserved signal is sent to described terminal, so that described terminal is according to the First ray value being used for indicating described first area length in described preserved signal and the second sequential value for indicating described first start bit to put, obtain described first area length and described first start bit is put.

In this technical scheme, instruction information can also is that and includes for indicating the First ray value of first area length and the preserved signal of the second sequential value for indicating first start bit to put, by sending this preserved signal (reservationsignal) to terminal, can enable the terminals to according in preserved signal for indicating the First ray value of first area length and the second sequential value for indicating first start bit to put, obtain first area length and first start bit is put, and then enable the terminals to receive timely and accurately down control channel, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions, certainly, those skilled in the art should know, preserved signal has many bit sequences, and the First ray value sequence corresponding with the second sequential value can be in these many bit sequences or a few position, and the First ray value sequence corresponding with the second sequential value can also be any position of these many bit sequences or appoint several positions,

Such as: when reservation signal is length be 10 sequence time, First ray value can be represented with the sequential value in the 1st sequence, or represent the second sequential value with the sequential value in the 10th sequence, terminal according to First ray value and the second sequential value can extrapolate first area length and first start bit is put, First ray value can certainly be represented with the sequential value on the 6th and the 7th sequence, represent the second sequential value with the sequential value on the 8th and the 9th sequence;

Additionally, the method that preserved signal instruction first area length and first start bit are put is used to include but not limited to indicate terminal by the sequential value in preserved signal, such as: time-frequency location that can also be taken by preserved signal etc. is as instruction information, so that the described instruction information containing the described time-frequency location that described preserved signal takies is sent to terminal, so that by described time-frequency location, terminal judges that described first area length and described first start bit are put.

In technique scheme, it is preferable that also include: described indicating means is applicable to indicate the control area in the channel idle detection subframe in unauthorized frequency range.

In this technical scheme, being present on the frame structure of unauthorized frequency range owing to channel idle detects subframe CCA, therefore, this indicating means is applicable to indicate the control area in the channel idle detection subframe in unauthorized frequency range.

Another aspect of the present invention proposes the instruction system of the control area in a kind of channel idle detection subframe, for having the equipment of base station functions, including: transmitting element, send instruction information to the terminal of the described device service with base station functions; Indicating member, described terminal is indicated to obtain the parameter information of the first control area in described channel idle detection subframe from described instruction information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

In technique scheme, preferably, also include: described instruction information includes: carry the radio resource control signaling that fixing first area length is put with fixing first start bit, media access control unit or physical layer signaling, or carry the radio resource control signaling that default first area length is put with the first start bit preset, media access control unit or physical layer signaling, and described transmitting element specifically for: by authorize frequency range or unauthorized frequency range to described terminal send described in carry fixing first area length and radio resource control signaling that fixing first start bit is put, media access control unit or physical layer signaling, or by authorizing frequency range or unauthorized frequency range to carry, to described in the transmission of described terminal, the radio resource control signaling that default first area length is put with the first start bit preset, media access control unit or physical layer signaling.

In technique scheme, preferably, also include: described instruction information includes: need to by authorizing the physical layer signaling of frequency range transmission, or the corresponding relation of the second area length of the second control area in mandate frequency range and described first area length, the corresponding relation that second original position and described first start bit are put, and described transmitting element specifically for: by authorizing frequency range to send described physical layer signaling to described terminal, so that described terminal obtains described first area length by described physical layer signaling and described first start bit is put, or by authorizing frequency range to send the corresponding relation of described second area length and described first area length to described terminal, the corresponding relation that described second original position and described first start bit are put.

In this technical scheme, instruction information can also is that the physical layer signaling need to put by the first area length carrying the first control area authorizing frequency range to send and first start bit, or the corresponding relation of the second area length of the second control area in mandate frequency range and first area length, the corresponding relation that second original position and first start bit are put, and by above-mentioned instruction information is sent to terminal by mandate frequency range, terminal can be made directly to obtain the first area length of this first control area from above-mentioned physical layer signaling and first start bit is put, or the corresponding relation according to the second area length in the frame structure authorized in frequency range with first area length, the corresponding relation that second original position and first start bit are put extrapolates the first area length of the first control area in CCA subframe and first start bit is put, thus enabling the terminals to receive timely and accurately down control channel, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions. such as: if the size of the first control area pre-defined in unlicensed spectrum is 1/3rd of the second control area size in Pcell (Primary-Cell main plot) the mandate frequency range used, and first the original position of control area be first OFDM symbol after CCA symbol, then when the second control area size in the Pcell mandate frequency range used is 3 OFDM symbol, the first control area that so terminal will be extrapolated according to the corresponding relation of second area length Yu first area length in the CCA subframe in unlicensed spectrum is 1 OFDM symbol, simultaneously, the original position of clear and definite first control area is first OFDM symbol after CCA.

In technique scheme, preferably, also include: described instruction information includes: preserved signal, wherein, described preserved signal includes for indicating the First ray value of described first area length and the second sequential value for indicating described first start bit to put, and described transmitting element specifically for: described channel idle detect subframe the down channel free time detected time, described preserved signal is sent to described terminal, so that described terminal is according to the First ray value being used for indicating described first area length in described preserved signal and the second sequential value for indicating described first start bit to put, obtain described first area length and described first start bit is put.

In technique scheme, it is preferable that also include: described instruction system is applicable to indicate the control area in the channel idle detection subframe in unauthorized frequency range.

In this technical scheme, being present on the frame structure of unauthorized frequency range owing to channel idle detects subframe CCA, therefore, this instruction system is applicable to indicate the control area in the channel idle detection subframe in unauthorized frequency range.

Another aspect of the present invention proposes the acquisition methods of the control area in a kind of channel idle detection subframe, for terminal, including: receive the instruction information sent from the equipment with base station functions; From described instruction information, obtain described channel idle detect the parameter information of the first control area in subframe, to obtain down control channel according to described parameter information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

In this technical scheme, by receiving the instruction information sent from the equipment with base station functions, channel idle can be obtained from instruction information and detect the parameter information of the first control area in subframe, and then obtain the length of the first control area and first start bit is put, to realize receiving down control channel timely and accurately, and the control signaling of carrying on acquisition down control channel, and then realize the control to terminal of the equipment with base station functions, certainly, this terminal may be located at the small-cell at the equipment place with base station functions, the adjacent small-cell that the small-cell at the equipment place can also being positioned at and have base station functions is adjacent, as long as being positioned at the equipment coverage with base station functions.

In technique scheme, preferably, also include: the process of the instruction information that described reception sends from the equipment with base station functions, specifically include: what have described in reception that the equipment of base station functions sends carries fixing first area length and radio resource control signaling that fixing first start bit is put, media access control unit or physical layer signaling, or the equipment described in receiving with base station functions send carry default first area length and the radio resource control signaling put of first start bit preset, media access control unit or physical layer signaling, the process of the parameter information of described the first control area obtained from described instruction information in described channel idle detection subframe, specifically include: carry, from described, the radio resource control signaling that fixing first area length is put with fixing first start bit, media access control unit or physical layer signaling directly obtain described first area length and described first start bit is put, or carry, from described, the radio resource control signaling that default first area length is put with the first start bit preset, media access control unit or physical layer signaling directly obtain described first area length and described first start bit is put.

In this technical scheme, instruction information can be carry radio resource control signaling (the i.e. RRC that fixing first area length is put with fixing first start bit, RadioResourceControl), media access control unit (MACCE, or physical layer signaling MediumAccessControlControlElement), or carry the radio resource control signaling that default (namely changing) first area length is put with (the namely changing) first start bit preset, media access control unit or physical layer signaling, and by use authority frequency range or the above-mentioned instruction information of unauthorized UHF band reception, can enable the terminals to receive down control channel timely and accurately, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions.

In technique scheme, preferably, also include: the process of the instruction information that described reception sends from the equipment with base station functions, specifically include: there is described in reception the physical layer signaling that the equipment of base station functions sends by authorizing frequency range, to be put by described physical layer signaling acquisition described first area length and described first start bit, or the equipment described in receiving with base station functions passes through the corresponding relation of second area length and the described first area length authorizing the second control area in the mandate frequency range of frequency range transmission, the corresponding relation that second original position and described first start bit are put, the process of the parameter information of described the first control area obtained from described instruction information in described channel idle detection subframe, specifically also include: from described physical layer signaling, directly obtain described first area length and described first start bit is put, or the corresponding relation put according to second area length described in described mandate frequency range and the corresponding relation of described first area length, described second original position and described first start bit obtains described first area length and described first start bit is put.

In this technical scheme, instruction information can also is that the physical layer signaling need to put by the first area length carrying the first control area authorizing frequency range to send and first start bit, or the second original position of the second area length of the second control area in mandate frequency range and the second control area, corresponding relation with second area length Yu first area length, the corresponding relation that second original position and first start bit are put, and by authorizing the above-mentioned instruction information of UHF band reception, terminal can be made directly to obtain the first area length of this first control area from above-mentioned physical layer signaling and first start bit is put, or the second original position according to the second area length in the frame structure authorized in frequency range and the second control area, and the corresponding relation of second area length and first area length, the corresponding relation that second original position and first start bit are put extrapolates the first area length of the first control area in CCA subframe and first start bit is put, thus enabling the terminals to receive timely and accurately down control channel, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions. such as: if the size of the first control area pre-defined in unlicensed spectrum is 1/3rd of the second control area size in Pcell (Primary-Cell main plot) the mandate frequency range used, and first the original position of control area be first OFDM symbol after CCA symbol, then when the second control area size in the Pcell mandate frequency range used is 3 OFDM symbol, the first control area that so terminal will be extrapolated according to the corresponding relation of second area length Yu first area length in the CCA subframe in unlicensed spectrum is 1 OFDM symbol, simultaneously, the original position of clear and definite first control area is first OFDM symbol after CCA.

In technique scheme, it is preferable that also include: the process of the instruction information that described reception sends from the equipment with base station functions, specifically include: there is described in reception the preserved signal that the equipment of base station functions sends; The process of the parameter information of described the first control area obtained from described instruction information in described channel idle detection subframe, specifically include: according to the First ray value being used for indicating described first area length in described preserved signal and the second sequential value for indicating described first start bit to put, obtain described first area length and described first start bit is put.

In this technical scheme, instruction information can also is that and includes for indicating the First ray value of described first area length and the preserved signal of the second sequential value for indicating first start bit to put, by receiving this preserved signal (reservationsignal), can enable the terminals to according in preserved signal for indicating the First ray value of described first area length and the second sequential value for indicating first start bit to put, obtain first area length and first start bit is put, and then enable the terminals to receive timely and accurately down control channel, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions, certainly, those skilled in the art should know, preserved signal has many bit sequences, and the First ray value sequence corresponding with the second sequential value can be in these many bit sequences or a few position, and the First ray value sequence corresponding with the second sequential value can also be any position of these many bit sequences or appoint several positions,

Another aspect of the present invention proposes the acquisition system of the control area in a kind of channel idle detection subframe, for terminal, including: receive unit, receive the instruction information sent from the equipment with base station functions; Acquiring unit, from described instruction information, obtain described channel idle detect the parameter information of the first control area in subframe, to obtain down control channel according to described parameter information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

In technique scheme, preferably, also include: described reception unit specifically for: what have described in reception that the equipment of base station functions sends carries fixing first area length and radio resource control signaling, media access control unit or physical layer signaling that fixing first start bit is put, or the equipment described in receiving with base station functions send carry default first area length and radio resource control signaling, media access control unit or physical layer signaling that the first start bit preset is put; Described acquiring unit specifically for: carry fixing first area length from described and radio resource control signaling, media access control unit or physical layer signaling that fixing first start bit is put directly obtain described first area length and described first start bit is put, or carry default first area length from described and radio resource control signaling, media access control unit or physical layer signaling that the first start bit preset is put directly obtain described first area length and described first start bit is put.

In technique scheme, preferably, also include: described reception unit specifically for: there is described in reception the physical layer signaling that the equipment of base station functions sends by authorizing frequency range, to be put by described physical layer signaling acquisition described first area length and described first start bit, or the corresponding relation that the equipment described in reception with base station functions is put with the corresponding relation of described first area length, the second original position and described first start bit by authorizing the second area length of the second control area in the mandate frequency range of frequency range transmission; Described acquiring unit specifically for: from described physical layer signaling, directly obtain described first area length and described first start bit put, or the corresponding relation put according to the described second area length in described mandate frequency range and the corresponding relation of described first area length, described second original position and described first start bit obtains described first area length and described first start bit is put.

In technique scheme, it is preferable that also include: described reception unit has, described in receiving, the preserved signal that the equipment of base station functions sends; Described acquiring unit is specifically for according to the First ray value being used for indicating described first area length in described preserved signal and the second sequential value for indicating described first start bit to put, obtaining described first area length and described first start bit is put.

Another aspect of the invention proposes a kind of equipment with base station functions, including: the instruction system of the control area in channel idle detection subframe as according to any one of technique scheme.

In this technical scheme, by arranging the instruction system of the control area in channel idle detection subframe on the equipment have base station functions, terminal can be made can to specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

Another aspect of the invention proposes a kind of terminal, including: the acquisition system of the control area in channel idle detection subframe as according to any one of technique scheme.

In this technical scheme, by arranging the acquisition system of the control area in channel idle detection subframe in terminal, terminal can be made can to specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

Another aspect of the invention proposes a kind of communication system, including: the equipment with base station functions as described in technique scheme and the terminal as described in technique scheme, described terminal is connected by wireless signal with the described equipment with base station functions.

In this technical scheme, by the communication system being made up of the equipment with base station functions as described in technique scheme and the terminal as described in technique scheme, terminal can be made can to specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

Pass through technical scheme, it is possible to make terminal can specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

Accompanying drawing explanation

Fig. 1 illustrates the fundamental diagram that mobile communication is transmitted in unlicensed spectrum;

Fig. 2 illustrates the original position of the control area in the channel idle detection subframe of an embodiment in correlation technique;

Fig. 3 illustrates the schematic flow sheet of the indicating means of the control area in channel idle according to an embodiment of the invention detection subframe;

Fig. 4 illustrates the structural representation of the instruction system of the control area in channel idle according to an embodiment of the invention detection subframe;

Fig. 5 illustrates the structural representation of the equipment with base station functions according to an embodiment of the invention;

Fig. 6 illustrates the schematic flow sheet of the acquisition methods of the control area in channel idle according to an embodiment of the invention detection subframe;

Fig. 7 illustrates the structural representation of the acquisition system of the control area in channel idle according to an embodiment of the invention detection subframe;

Fig. 8 illustrates the structural representation of terminal according to an embodiment of the invention;

Fig. 9 illustrates the structural representation of communication system according to an embodiment of the invention;

Figure 10 illustrates the instruction principle schematic of the control area in the channel idle detection subframe of one embodiment of the present of invention;

Figure 11 illustrates the instruction principle schematic of the control area in the channel idle detection subframe of an alternative embodiment of the invention;

Figure 12 illustrates the instruction principle schematic of the control area in the channel idle detection subframe of another embodiment of the present invention.

Detailed description of the invention

In order to the above-mentioned purpose of the present invention, feature and advantage can be more clearly understood that, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail. It should be noted that when not conflicting, embodiments herein and the feature in embodiment can be mutually combined.

Elaborate a lot of detail in the following description so that fully understanding the present invention; but; the present invention can also adopt other to be different from other modes described here to implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.

Fig. 3 illustrates the schematic flow sheet of the indicating means of the control area in channel idle according to an embodiment of the invention detection subframe.

As shown in Figure 3, it is shown that the indicating means of the control area in the channel idle detection subframe of one embodiment of the present of invention, including: step 302, send instruction information to the terminal of the described device service with base station functions; Step 304, described terminal is indicated to obtain the parameter information of the first control area in described channel idle detection subframe from described instruction information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

In technique scheme, preferably, also include: described instruction information includes: need to by authorizing the physical layer signaling of frequency range transmission, or the corresponding relation of the second area length in mandate frequency range and described first area length, the corresponding relation that described second original position and described first start bit are put, and the described terminal to the described device service with base station functions sends the process of instruction information, specifically include: by authorizing frequency range to send described physical layer signaling to described terminal, so that described terminal obtains described first area length by described physical layer signaling and described first start bit is put, or by authorizing frequency range to send the corresponding relation of described second area length and described first area length to described terminal, the corresponding relation that described second original position and described first start bit are put.

In this technical scheme, instruction information can also is that the physical layer signaling need to put by the first area length carrying the first control area authorizing frequency range to send and first start bit, or the corresponding relation of the second area length in mandate frequency range and first area length, the corresponding relation that second original position and first start bit are put, and by above-mentioned instruction information is sent to terminal by mandate frequency range, terminal can be made directly to obtain the first area length of this first control area from above-mentioned physical layer signaling and first start bit is put, or the corresponding relation according to the second area length in the frame structure authorized in frequency range with first area length, the corresponding relation that second original position and first start bit are put extrapolates the first area length of the first control area in CCA subframe and first start bit is put, thus enabling the terminals to receive timely and accurately down control channel, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions. such as: if the size of the first control area pre-defined in unlicensed spectrum is 1/3rd of the second control area size in Pcell (Primary-Cell main plot) the mandate frequency range used, and first the original position of control area be first OFDM symbol after CCA symbol, then when the second control area size in the Pcell mandate frequency range used is 3 OFDM symbol, the first control area that so terminal will be extrapolated according to the corresponding relation of second area length Yu first area length in the CCA subframe in unlicensed spectrum is 1 OFDM symbol, simultaneously, the original position of clear and definite first control area is first OFDM symbol after CCA,

Fig. 4 illustrates the structural representation of the instruction system of the control area in channel idle according to an embodiment of the invention detection subframe.

As shown in Figure 4, it is shown that the instruction system 400 of the control area in the channel idle detection subframe of one embodiment of the present of invention, including: transmitting element 402, send instruction information to the terminal of the described device service with base station functions; Indicating member 404, described terminal is indicated to obtain the parameter information of the first control area in described channel idle detection subframe from described instruction information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

In technique scheme, preferably, also include: described instruction information includes: carry the radio resource control signaling that fixing first area length is put with fixing first start bit, media access control unit or physical layer signaling, or carry the radio resource control signaling that default first area length is put with the first start bit preset, media access control unit or physical layer signaling, and described transmitting element 402 specifically for: by authorize frequency range or unauthorized frequency range to described terminal send described in carry fixing first area length and radio resource control signaling that fixing first start bit is put, media access control unit or physical layer signaling, or by authorizing frequency range or unauthorized frequency range to carry, to described in the transmission of described terminal, the radio resource control signaling that default first area length is put with the first start bit preset, media access control unit or physical layer signaling.

In technique scheme, preferably, also include: described instruction information includes: need to by authorizing the physical layer signaling of frequency range transmission, or the corresponding relation of the second area length of the second control area in mandate frequency range and described first area length, the corresponding relation that described second original position and described first start bit are put, and described transmitting element 402 specifically for: by authorizing frequency range to send described physical layer signaling to described terminal, so that described terminal obtains described first area length by described physical layer signaling and described first start bit is put, or by authorizing the frequency range corresponding relation to second area length described in described terminal Yu described first area length, the corresponding relation that described second original position and described first start bit are put.

In this technical scheme, instruction information can also is that the physical layer signaling need to put by the first area length carrying the first control area authorizing frequency range to send and first start bit, or the corresponding relation of the second area length of the second control area in mandate frequency range and first area length, the corresponding relation that second original position and first start bit are put, and by above-mentioned instruction information is sent to terminal by mandate frequency range, terminal can be made directly to obtain the first area length of this first control area from above-mentioned physical layer signaling and first start bit is put, or the corresponding relation according to the second area length in the frame structure authorized in frequency range with first area length, the corresponding relation that second original position and first start bit are put extrapolates the first area length of the first control area in CCA subframe and first start bit is put, thus enabling the terminals to receive timely and accurately down control channel, and finally realize obtaining the control signaling of carrying on down control channel exactly, and then realize the control to terminal of the equipment with base station functions. such as: if the size of the first control area pre-defined in unlicensed spectrum is 1/3rd of the second control area size in Pcell (Primary-Cell main plot) the mandate frequency range used, and first the original position of control area be first OFDM (OrthogonalFrequencyDivisionMultiplexing after CCA symbol, orthogonal frequency division multiplexi) symbol, then when the second control area size in the Pcell mandate frequency range used is 3 OFDM symbol, the first control area that so terminal will be extrapolated according to the corresponding relation of second area length Yu first area length in the CCA subframe in unlicensed spectrum is 1 OFDM symbol, simultaneously, the original position of clear and definite first control area is first OFDM symbol after CCA,

In technique scheme, preferably, also include: described instruction information includes: preserved signal, wherein, described preserved signal includes for indicating the First ray value of described first area length and the second sequential value for indicating described first start bit to put, and described transmitting element 402 specifically for: described channel idle detect subframe the down channel free time detected time, described preserved signal is sent to described terminal, so that described terminal is according to the First ray value being used for indicating described first area length in described preserved signal and the second sequential value for indicating described first start bit to put, obtain described first area length and described first start bit is put.

Fig. 5 illustrates the structural representation of the equipment with base station functions according to an embodiment of the invention.

As shown in Figure 5, it is shown that the equipment 500 with base station functions of one embodiment of the present of invention, including the instruction system 400 of the control area in channel idle as according to any one of technique scheme detection subframe.

In this technical scheme, by arranging the instruction system 400 of the control area in channel idle detection subframe on the equipment 500 have base station functions, terminal can be made can to specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

Fig. 6 illustrates the schematic flow sheet of the acquisition methods of the control area in channel idle according to an embodiment of the invention detection subframe.

As shown in Figure 6, it is shown that the acquisition methods of the control area in the channel idle detection subframe of one embodiment of the present of invention, including: step 602, receive the instruction information sent from the equipment with base station functions; Step 604, from described instruction information, obtain described channel idle detect the parameter information of the first control area in subframe, to obtain down control channel according to described parameter information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

In technique scheme, preferably, also include: the process of the instruction information that described reception sends from the equipment with base station functions, specifically include: there is described in reception the physical layer signaling that the equipment of base station functions sends by authorizing frequency range, to be put by described physical layer signaling acquisition described first area length and described first start bit, or the equipment described in receiving with base station functions passes through the corresponding relation of second area length and the described first area length authorizing the second control area in the mandate frequency range of frequency range transmission, the corresponding relation that second original position and described first start bit are put, the process of the parameter information of described the first control area obtained from described instruction information in described channel idle detection subframe, specifically also include: from described physical layer signaling, directly obtain described first area length and described first start bit is put, or the corresponding relation put according to the second area length in described mandate frequency range and the corresponding relation of described first area length, described second original position and described first start bit obtains described first area length and described first start bit is put.

Fig. 7 illustrates the structural representation of the acquisition system of the control area in channel idle according to an embodiment of the invention detection subframe.

As shown in Figure 7, it is shown that the acquisition system 700 of the control area in the channel idle detection subframe of one embodiment of the present of invention, including: reception unit 702, receive the instruction information sent from the equipment with base station functions; Acquiring unit 704, from described instruction information, obtain described channel idle detect the parameter information of the first control area in subframe, to obtain down control channel according to described parameter information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

In technique scheme, preferably, also include: described reception unit 702 specifically for: what have described in reception that the equipment of base station functions sends carries fixing first area length and radio resource control signaling, media access control unit or physical layer signaling that fixing first start bit is put, or the equipment described in receiving with base station functions send carry default first area length and radio resource control signaling, media access control unit or physical layer signaling that the first start bit preset is put; Described acquiring unit 704 specifically for: carry fixing first area length from described and radio resource control signaling, media access control unit or physical layer signaling that fixing first start bit is put directly obtain described first area length and described first start bit is put, or carry default first area length from described and radio resource control signaling, media access control unit or physical layer signaling that the first start bit preset is put directly obtain described first area length and described first start bit is put.

In technique scheme, preferably, also include: described reception unit 702 specifically for: there is described in reception the physical layer signaling that the equipment of base station functions sends by authorizing frequency range, to be put by described physical layer signaling acquisition described first area length and described first start bit, or the corresponding relation that the equipment described in reception with base station functions is put with the corresponding relation of described first area length, described second original position and described first start bit by authorizing the second area length of the second control area in the mandate frequency range of frequency range transmission; Described acquiring unit 704 specifically for: from described physical layer signaling, directly obtain described first area length and described first start bit put, or the corresponding relation put according to the described second area length in described mandate frequency range and the corresponding relation of described first area length, described second original position and described first start bit obtains described first area length and described first start bit is put.

In technique scheme, it is preferable that also include: described reception unit 702 has, described in receiving, the preserved signal that the equipment of base station functions sends; Described acquiring unit 704 is specifically for according to the First ray value being used for indicating described first area length in described preserved signal and the second sequential value for indicating described first start bit to put, obtaining described first area length and described first start bit is put.

Fig. 8 illustrates the structural representation of terminal according to an embodiment of the invention.

As shown in Figure 8, it is shown that the terminal 800 of one embodiment of the present of invention, including the acquisition system 700 of the control area in channel idle as according to any one of technique scheme detection subframe.

In this technical scheme, by arranging the acquisition system 700 of the control area in channel idle detection subframe in terminal 800, terminal 800 can be made can to specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

Fig. 9 illustrates the structural representation of communication system according to an embodiment of the invention.

As shown in Figure 9, illustrate the communication system 900 of one embodiment of the present of invention, including: the equipment 500 with base station functions as described in technique scheme and the terminal 800 as described in technique scheme, described terminal 800 is connected by wireless signal with the described equipment with base station functions 500.

In this technical scheme, by the communication system 900 being made up of the equipment 500 with base station functions as described in technique scheme and the terminal 800 as described in technique scheme, terminal 800 can be made can to specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

Figure 10 illustrates the instruction principle schematic of the control area in the channel idle detection subframe of one embodiment of the present of invention.

As shown in Figure 10, the equipment with base station functions can pass through to authorize frequency range or unauthorized frequency range to carry, to described in terminal transmission, the radio resource control signaling that fixing first area length is put with fixing first start bit, media access control unit or physical layer signaling, or carry, by authorizing frequency range or unauthorized frequency range to send to terminal, the radio resource control signaling that default first area length is put with the first start bit preset, media access control unit or physical layer signaling, so that terminal obtains the first area length of the first control area in CCA subframe from above-mentioned instruction information and the first start bit of the first control area is put, in this indicating means, the original position of control area is fixing or configurable:

Such as: instruction information can be one and predefined have the RCC (RadioResourceControl that fixing first start bit is put and fixed first area length, wireless heterogeneous networks) signaling, MACCE (MediumAccessControlElement, media access control unit) or physical layer signaling, or need the variable first start bit that has of provisional configuration to put and the RCC signaling of variable first area length every time, MACCE or physical layer signaling, and instruction information corresponding to Figure 10 is exactly have the RCC signaling that fixing first start bit is put and fixed first area length, MACCE or physical layer signaling, concrete configuring condition is: the first control area is from the third last OFDM symbol in CCA subframe (i.e. subframe N+1), the size of the first control area is 2 OFDM symbol, and terminal is by authorizing frequency range or this RCC signaling of unauthorized UHF band reception, MACCE or physical layer signaling just can know that this configures, and then can go on a corresponding position to receive control channel, certainly, RCC signaling, it can be fixing that the first area length carried on MACCE or physical layer signaling and first start bit are put, can also be unfixed, what namely send to terminal carries first area length and RCC signaling that first start bit is put every time, it is all random arrangement that first area length on MACCE or physical layer signaling and first start bit are put.

Figure 11 illustrates the instruction principle schematic of the control area in the channel idle detection subframe of an alternative embodiment of the invention.

As shown in figure 11, the equipment with base station functions can also by authorizing frequency range to send physical layer signaling to terminal, so that terminal obtains first area length by this physical layer signaling and first start bit is put, or by authorizing frequency range to send the corresponding relation of second area length and the first area length authorizing the second control area in frequency range to terminal, the corresponding relation that second original position of the second control area and first start bit are put, so that terminal obtains the first area length of the first control area in CCA subframe from above-mentioned instruction information and the first start bit of the first control area is put, and this indicating means, it is undertaken notifying by the equipment with base station functions in Pcell:

Due at LAA (LicensedAssistedAccess, the access technology of auxiliary) in system, terminal has the Pcell authorizing frequency spectrum to provide service all the time, therefore can by the original position of the first control area in Pcell notice terminal CCA subframe and length, notice method can be show or implicit expression, the method of display refers to that Pcell passes through physical layer signaling and explicitly directly informs that the length of the first control area in unlicensed spectrum and first start bit are put, the method of implicit expression refers to the rule that definition is certain, the size and the first start bit that impliedly indicate the first control area in terminal unlicensed spectrum are put, such as: the length of the first control area in pre-defined unlicensed spectrum is the half of the upper second control area length of Pcell, it is that first OFDM symbol after CCA symbol in CCA subframe starts that the first start bit of the first control area is put, and utilize the corresponding relation between authorizing frequency range the second original position of the second control area on Pcell and the first start bit of the first control area to be put, and second control area length and the length of the first control area between corresponding relation to indicate the form of information to send to terminal, so, terminal just can obtain the size of the first control area and first start bit is put,

As shown in Figure 11, on subframe N+1, the second control area size on Pcell is 2 OFDM symbol, so terminal is after obtaining above-mentioned instruction information, will know that the length of upper first control area of the subframe N+1 of unlicensed spectrum (i.e. CCA subframe) is 1 OFDM symbol, the original position of the first control area is first OFDM symbol after CCA symbol.

As shown in figure 12, have base station functions equipment can also channel idle detect subframe the down channel free time detected time, preserved signal and reservationsignal is sent to terminal, so that terminal is according to the First ray value being used for indicating first area length in preserved signal and the second sequential value for indicating first start bit to put, obtains first area length and first start bit put:

Under this approach, due in LAA system, after finishing CCA detection, after determining that channel can take, the equipment with base station functions may send reservation signal, therefore, it can to carry out the size of the first control area in the instruction unlicensed spectrum of implicit expression by reservation signal and first start bit is put;

Specifically, the length of the first control area and first start bit can be implicitly indicated to put by the different sequence of reservation signal, as shown in figure 12, assume that reservation signal be a length is the sequence of 10, so, if the sequential value of the length i.e. front two sequence of this 10 bit sequence that the front two of specified sequence is used to refer to the first control area is First ray value in advance, the sequential value that 8 first start bits being used for the first control area next put i.e. rear eight bit sequences of this 10 bit sequence is the second sequential value, and by this definition to indicate the form of information to send to terminal, so, terminal just can implicitly know that the sequential value according to front two sequence can obtain the length of the first control area, and first start bit can be obtained according to the sequential value of rear 8 bit sequences and put, as shown in figure 12, in fig. 12, when the sequential value of current two bit sequences is 00, according to instruction information, terminal will know that the first control area length is 1 OFDM symbol, when the sequential value of current two bit sequences is 01, according to instruction information, terminal will know that the first control area length is 2 OFDM symbol, when the sequential value of current two bit sequences is 10, according to instruction information, terminal will know that the first control area length is 3 OFDM symbol, when the sequential value of current two bit sequences is 11, according to instruction information, terminal will know that the first control area length is 4 OFDM symbol, when the sequential value of rear 8 bit sequences is 00000000, according to instruction information, terminal will know that first start bit is put is the 1st OFDM symbol after reservation signal, when the sequential value of rear 8 bit sequences is 00000001, according to instruction information, terminal will know that first start bit is put is the 2nd OFDM symbol after reservation signal, the like.

Certainly, sequence shown in Figure 12 is only an example, the length of sequence is probably different (as being 12 etc.), the place indicating the sequence that the first control area size and first start bit put in sequence is also likely to be different, such as: when the length of reservation signal is still 10 sequences, if the sequential value of the length i.e. front three sequence of this 10 bit sequence that the front three of specified sequence is used to refer to the first control area is First ray value in advance, it is the second sequential value that rear 2 first start bits being used for the first control area reciprocal put the sequential value of 2 bit sequences after the inverse of this 10 bit sequence i.e., and by this definition to indicate the form of information to send to terminal.

Technical scheme is described in detail above in association with accompanying drawing, terminal can be made can to specify original position and the length of control area in CCA subframe, to be accurately received down control channel in time, and then obtain the control signaling of carrying on down control channel exactly.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims

1. an indicating means for the control area in channel idle detection subframe, for having the equipment of base station functions, it is characterised in that including:

Instruction information is sent to the terminal of the described device service with base station functions;

Described terminal is indicated to obtain the parameter information of the first control area in described channel idle detection subframe from described instruction information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

2. the indicating means of the control area in channel idle according to claim 1 detection subframe, it is characterised in that

Described instruction information includes: carry radio resource control signaling, media access control unit or physical layer signaling that fixing first area length is put with fixing first start bit, or

Carry radio resource control signaling, media access control unit or physical layer signaling that default first area length is put with the first start bit preset, and

The described process sending instruction information to the terminal of the described device service with base station functions, specifically includes:

By authorizing frequency range or unauthorized frequency range to carry, to described in the transmission of described terminal, radio resource control signaling, media access control unit or the physical layer signaling that fixing first area length is put with fixing first start bit, or

By authorizing frequency range or unauthorized frequency range to carry, to described in the transmission of described terminal, radio resource control signaling, media access control unit or the physical layer signaling that default first area length is put with the first start bit preset.

3. the indicating means of the control area in channel idle according to claim 1 detection subframe, it is characterised in that

Described instruction information includes: the physical layer signaling that need to be sent by mandate frequency range, or

Authorize the corresponding relation that the second area length of the second control area in frequency range is put with described first start bit with the corresponding relation of described first area length, the second original position, and

By authorizing frequency range to send described physical layer signaling to described terminal, so that described terminal obtains described first area length by described physical layer signaling and described first start bit is put, or

By authorizing frequency range to send, to described terminal, the corresponding relation that described second area length is put with described first start bit with the corresponding relation of described first area length, described second original position.

4. the indicating means of the control area in channel idle according to claim 1 detection subframe, it is characterised in that

Described instruction information includes: preserved signal, and wherein, described preserved signal includes for indicating the First ray value of described first area length and the second sequential value for indicating described first start bit to put, and

When described channel idle detection subframe detects the down channel free time, described preserved signal is sent to described terminal, so that described terminal is according to the First ray value being used for indicating described first area length in described preserved signal and the second sequential value for indicating described first start bit to put, obtains described first area length and described first start bit is put.

5. the indicating means of the control area in channel idle according to any one of claim 1 to 4 detection subframe, it is characterised in that

Described indicating means is applicable to indicate the control area in the channel idle detection subframe in unauthorized frequency range.

6. an instruction system for the control area in channel idle detection subframe, for having the equipment of base station functions, it is characterised in that including:

Transmitting element, sends instruction information to the terminal of the described device service with base station functions;

Indicating member, described terminal is indicated to obtain the parameter information of the first control area in described channel idle detection subframe from described instruction information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

7. the instruction system of the control area in channel idle according to claim 6 detection subframe, it is characterised in that

Described transmitting element specifically for:

8. the instruction system of the control area in channel idle according to claim 6 detection subframe, it is characterised in that

Described transmitting element specifically for:

9. the instruction system of the control area in channel idle according to claim 6 detection subframe, it is characterised in that

Described transmitting element specifically for:

10. the instruction system of the control area in the channel idle detection subframe according to any one of claim 6 to 9, it is characterised in that

Described instruction system is applicable to indicate the control area in the channel idle detection subframe in unauthorized frequency range.

11. an acquisition methods for the control area in channel idle detection subframe, for terminal, it is characterised in that including:

Receive the instruction information sent from the equipment with base station functions;

From described instruction information, obtain described channel idle detect the parameter information of the first control area in subframe, to obtain down control channel according to described parameter information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

12. the acquisition methods of the control area in channel idle according to claim 11 detection subframe, it is characterised in that

The process of the instruction information that described reception sends from the equipment with base station functions, specifically includes:

What have described in reception that the equipment of base station functions sends carries fixing first area length and radio resource control signaling, media access control unit or physical layer signaling that fixing first start bit is put, or the equipment described in receiving with base station functions send carry default first area length and radio resource control signaling, media access control unit or physical layer signaling that the first start bit preset is put;

The process of the parameter information of described the first control area obtained from described instruction information in described channel idle detection subframe, specifically includes:

Carry fixing first area length from described and radio resource control signaling, media access control unit or physical layer signaling that fixing first start bit is put directly obtain described first area length and described first start bit is put, or

Default first area length and first start bit radio resource control signaling, media access control unit or the physical layer signaling put preset directly obtain described first area length and described first start bit is put from described carrying.

13. the acquisition methods of the control area in channel idle according to claim 11 detection subframe, it is characterised in that

There is described in reception the physical layer signaling that the equipment of base station functions sends by authorizing frequency range, to be put by described physical layer signaling acquisition described first area length and described first start bit, or

There is described in reception the corresponding relation that the equipment of base station functions is put with described first start bit with the corresponding relation of described first area length, the second original position by authorizing the second area length of the second control area in the mandate frequency range of frequency range transmission;

The process of the parameter information of described the first control area obtained from described instruction information in described channel idle detection subframe, specifically also includes:

From described physical layer signaling, directly obtain described first area length and described first start bit is put, or

Corresponding relation acquisition described first area length and the described first start bit put according to the described second area length in described mandate frequency range and the corresponding relation of described first area length, described second original position and described first start bit are put.

14. the acquisition methods of the control area in channel idle according to claim 11 detection subframe, it is characterised in that

There is described in reception the preserved signal that the equipment of base station functions sends;

According to the First ray value being used for indicating described first area length in described preserved signal and the second sequential value for indicating described first start bit to put, obtain described first area length and described first start bit is put.

15. an acquisition system for the control area in channel idle detection subframe, for terminal, it is characterised in that including:

Receive unit, receive the instruction information sent from the equipment with base station functions;

Acquiring unit, from described instruction information, obtain described channel idle detect the parameter information of the first control area in subframe, to obtain down control channel according to described parameter information, wherein, described parameter information includes: the first area length of described first control area and the first start bit of described first control area are put.

16. the acquisition system of the control area in channel idle according to claim 15 detection subframe, it is characterised in that

Described reception unit specifically for:

Described acquiring unit specifically for:

17. the acquisition system of the control area in channel idle according to claim 15 detection subframe, it is characterised in that

Described reception unit specifically for:

Described acquiring unit specifically for:

18. the acquisition system of the control area in channel idle according to claim 15 detection subframe, it is characterised in that

Described reception unit specifically for: have described in reception base station functions equipment send preserved signal;

Described acquiring unit specifically for: according to First ray value and the second sequential value for indicating described first start bit to put for indicating described first area length in described preserved signal, obtain described first area length and described first start bit put.

19. an equipment with base station functions, it is characterised in that including: the instruction system of the control area in channel idle detection subframe as according to any one of claim 6 to 10.

20. a terminal, it is characterised in that including: the acquisition system of the control area in channel idle detection subframe as according to any one of claim 15 to 18.

21. a communication system, it is characterised in that including: having the equipment of base station functions and terminal as claimed in claim 20 as claimed in claim 19, described terminal is connected by wireless signal with the described equipment with base station functions.