CN104348600A - Indication method, system and device for dynamic idle frequency - Google Patents
Indication method, system and device for dynamic idle frequency Download PDFInfo
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- CN104348600A CN104348600A CN201310334295.1A CN201310334295A CN104348600A CN 104348600 A CN104348600 A CN 104348600A CN 201310334295 A CN201310334295 A CN 201310334295A CN 104348600 A CN104348600 A CN 104348600A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
Abstract
Disclosed are an indication method, system and device for a dynamic idle frequency. After a TD-LTE network side determines a usable idle frequency band, the idle frequency band is used as an auxiliary carrier, wherein the idle frequency band includes frequencies occupied by other narrowband systems; then a main carrier sends auxiliary carrier configuration information, which includes an auxiliary carrier center frequency point and bandwidth, to a terminal, wherein the auxiliary carrier center frequency point is a center frequency point of the usable idle frequency band and the auxiliary carrier bandwidth is a non-LTE-standard bandwidth; and at last, auxiliary carrier resources are scheduled for the terminal and scheduling information is notified to the terminal through the main carrier, wherein the scheduling information is capable of indicating all resource blocks of the non-standard-bandwidth auxiliary carrier and narrowband interference signals in an auxiliary carrier frequency range can be avoided. The TD-LTE is capable of using an idle frequency band with a non-LTE-standard width as an auxiliary carrier and capable of scheduling and indicating all resource blocks capable of avoiding the narrowband interference signals on the auxiliary carrier so as to allocate to the terminal.
Description
Technical field
The present invention relates to timesharing long evolving system (TD-LTE) field, particularly a kind of indicating means of dynamic idle frequency, system and device.
Background technology
In the scene of TD-LTE and other business or the dynamic shared frequencies of wireless communication system, TD-LTE utilizes cognitive radio power technology to use the idle frequence of other business or wireless communication system.For multicarrier TD-LTE, can use and distribute to the special frequency of TD-LTE as main carrier, other business using perception to obtain or the idle frequence of wireless communication system are as auxiliary carrier wave.When the system of main business or higher preferential pole business resumes auxiliary year wave frequency, TD-LTE needs to stop at the transmitting on auxiliary carrier wave in time, by the terminal switch on auxiliary carrier wave on main carrier.
In TD-LTE, in order to reduce frequency dynamic change to the impact of TD-LTE communication, can be configured the information of major-minor carriers carry.Particularly, main carrier has data field and control domain, the control informations such as carrying cell broadcast information, synchronizing information, common control information and up-downgoing schedule information, and the data of carrying terminal.Wherein, cell broadcast information can be host system message block (MIB) or system information block (SIB), synchronizing information is Physical Synchronization information (PSCH) or slot synchronization information (SSCH), and up-downgoing schedule information can be Physical Downlink Control Channel (PDCCH).Auxiliary carrier wave only has data field and does not arrange control domain.All resources on auxiliary carrier wave, all for the transfer of data of terminal, such as only carry Physical Downlink Shared Channel (PDSCH).All control informations, such as up-downgoing schedule information is all transmitted by the PDCCH on main carrier, after the UE in community receives the up-downgoing schedule information of auxiliary carrier wave on main carrier, then receives PDSCH to auxiliary carrier wave.
In order to utilize dynamic idle frequency with making TD-LTE high efficient and flexible, and there is no control domain due to auxiliary carrier frame structure, can using the idle resource of frequency range of nonstandard bandwidth as auxiliary carrier wave.If do not done like this, then can when the bandwidth of continuous idle frequence not be mated with TD-LTE standard bandwidth, can only select the TD-LTE standard bandwidth being less than idle frequence bandwidth, wherein, TD-LTE standard bandwidth is 1.4,3,5,10,15 or 20 megahertzes (MHz).The idle frequency range of nonstandard bandwidth can be utilized as far as possible whole frequencies of continuous idle frequence as auxiliary carrier wave, and do not carry the frame that control domain is set due to auxiliary carrier wave, by not dispatching the part resource block (RB on auxiliary carrier wave, Resource Block), the narrow-band interference signal on auxiliary carrier wave can be avoided.Like this, a narrow-band interference signal need not be there is because of in the middle of one section of idle frequence, just allow whole section of idle frequence all can not be utilized by TD-LTE, or two auxiliary carrier waves uses will be split as, the effective use of discontinuous idle frequence can be realized like this.
Be LTE standard bandwidth owing to not limiting auxiliary carrier bandwidths, need to indicate auxiliary carrier wave RB, the up-downgoing schedule information of carrying on the PDCCH of main carrier needs all RB resources that can indicate on auxiliary carrier wave.Further, in order to avoid interfering with each other with narrow-band interference signal, also needing by RB indicating means, avoiding as UE distributes narrow-band interference signal and both sides thereof the RB resource for the protection of bandwidth.But, do not have above-mentioned indicating means at present.
Summary of the invention
In view of this, the invention provides a kind of indicating means of dynamic idle frequency, the method can be dispatched and be indicated the RB of the non-LTE standard bandwidth on auxiliary carrier wave, distributes to terminal.
The present invention also provides a kind of indication mechanism of dynamic idle frequency, and this system can be dispatched and be indicated the RB of the non-LTE standard bandwidth on auxiliary carrier wave, distributes to terminal.
The present invention also provides a kind of indicating device of dynamic idle frequency, and this device can be dispatched and indicate the RB of the non-LTE standard bandwidth on auxiliary carrier wave, distributes to terminal.
For achieving the above object, technical scheme of the invention process is specifically achieved in that
An indicating means for dynamic idle frequency, the method comprises:
TD-LTE network side determination available free frequency range, using this available free frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies;
The auxiliary carrier configuration information comprising auxiliary carrier center frequency and bandwidth is sent to terminal by main carrier by TD-LTE, and described auxiliary carrier center frequency is the center frequency point of available free frequency range, and bandwidth is non-LTE standard bandwidth;
TD-LTE dispatches auxiliary carrier resource, by main carrier, schedule information is informed to terminal, and described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate.
Described auxiliary carrier center frequency is the center frequency point of available free frequency range, comprising:
Described center frequency point by absolute radio frames number-evolution global telecommunications connecting system value ARFCN-ValueEUTRA indicates, if the span of ARFCN-ValueEUTRA is inadequate, expansion ARFCN-ValueEUTRA span supports the frequency range dynamically sharing frequency spectrum, and increase is used to indicate the EARFCN-Extend that auxiliary carrier center frequency is expanding location frequency in described auxiliary carrier configuration information, ARFCN-ValueEUTRA adopts
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value;
Described bandwidth is non-LTE standard bandwidth, comprising:
Described bandwidth adopts d1-Bandwidth-r10 and u1-Bandwidth-r10 field, d1-Bandwidth-r10 and u1-Bandwidth-r10 field is set to the Resource Block RB total value that auxiliary carrier wave comprises, and Bandwidth-Extend field is increased in described auxiliary carrier configuration information, being used to indicate d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the RB total value for the auxiliary carrier wave of nonstandard bandwidth.
Described auxiliary carrier configuration information is carried in radio resource control replacement message and is sent by main carrier.
Described schedule information is the auxiliary carrier wave RB information that terminal is distributed in instruction,
When adopting resource allocation type Type0 that auxiliary carrier wave RB is distributed to terminal, bit mapping and the RBG that terminal auxiliary carrier wave RB information comprises Resource Block group RBG is distributed in instruction, wherein, and the numerical value of the length that extended bit maps or expansion RBG;
When adopting resource allocation type Type1 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the bit mapping of indicating section RBG under RBG subset and this RBG subset, wherein, and the length that extended bit maps;
When adopting resource allocation type Type2 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the starting position of continuous RBG and continuous RBG quantity, wherein, expands the numerical value of continuous RBG starting position and/or the quantity of continuous RBG.
Also comprise when dispatching auxiliary carrier resource: the RB avoiding narrow-band interference signal within the scope of auxiliary carrier frequency rate and boundary belt place, both sides thereof.
An indication mechanism for dynamic idle frequency, comprising: TD-LTE network side and terminal, wherein,
TD-LTE network side, for determining available free frequency range, using this available free frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies; By main carrier, the auxiliary carrier configuration information comprising auxiliary carrier center frequency and bandwidth is sent to terminal, described auxiliary carrier center frequency is the center frequency point of available free frequency range, and bandwidth is non-LTE standard bandwidth; By main carrier, schedule information is informed to terminal, described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate;
Terminal, for receiving the auxiliary carrier configuration information that TD-LTE network side sends, receives the schedule information that TD-LTE network side sends.
TD-LTE network side, the center frequency point being also available free frequency range for described auxiliary carrier center frequency specifically comprises: described center frequency point by absolute radio frames number-evolution global telecommunications connecting system value ARFCN-ValueEUTRA indicates, if the span of ARFCN-ValueEUTRA is inadequate, expansion ARFCN-ValueEUTRA span supports the frequency range dynamically sharing frequency spectrum, and increase is used to indicate the EARFCN-Extend that auxiliary carrier center frequency is expanding location frequency in described auxiliary carrier configuration information, ARFCN-ValueEUTRA adopts
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value;
Described bandwidth is that non-LTE standard bandwidth specifically comprises: described bandwidth adopts d1-Bandwidth-r10 and u1-Bandwidth-r10 field, d1-Bandwidth-r10 and u1-Bandwidth-r10 field is set to the Resource Block RB total value that auxiliary carrier wave comprises, and Bandwidth-Extend field is increased in described auxiliary carrier configuration information, being used to indicate d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the RB total value for the auxiliary carrier wave of nonstandard bandwidth.
TD-LTE network side, be also that the auxiliary carrier wave RB information of terminal is distributed in instruction for described schedule information, when adopting resource allocation type Type0 that auxiliary carrier wave RB is distributed to terminal, bit mapping and the RBG that terminal auxiliary carrier wave RB information comprises Resource Block group RBG is distributed in instruction, wherein, the length of extended bit mapping or the numerical value of expansion RBG; When adopting resource allocation type Type1 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the bit mapping of indicating section RBG under RBG subset and this RBG subset, wherein, and the length that extended bit maps; When adopting resource allocation type Type2 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the starting position of continuous RBG and continuous RBG quantity, wherein, expands the numerical value of continuous RBG starting position and/or the quantity of continuous RBG.
TD-LTE network side, also for also comprising when dispatching auxiliary carrier resource: the RB avoiding narrow-band interference signal within the scope of auxiliary carrier frequency rate and boundary belt place, both sides thereof.
An indicating device for dynamic idle frequency, comprising: auxiliary carrier configuration information arranges module, schedule information arranges module and transceiver module, wherein,
Auxiliary carrier configuration information arranges module, for determining available free frequency range, using this available free frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies, main carrier is set and will comprises the auxiliary carrier configuration information of auxiliary carrier center frequency and bandwidth, described auxiliary carrier center frequency is the center frequency point of available free frequency range, and bandwidth is non-LTE standard bandwidth;
Schedule information arranges module, and for arranging schedule information, described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate;
Transceiver module, for auxiliary carrier configuration information being sent to terminal by main carrier, informs to terminal by main carrier by schedule information.
Described auxiliary carrier configuration information arranges module, the center frequency point being also available free frequency range for described auxiliary carrier center frequency specifically comprises: described center frequency point by absolute radio frames number-evolution global telecommunications connecting system value ARFCN-ValueEUTRA indicates, if the span of ARFCN-ValueEUTRA is inadequate, expansion ARFCN-ValueEUTRA span supports the frequency range dynamically sharing frequency spectrum, and increase is used to indicate the EARFCN-Extend that auxiliary carrier center frequency is expanding location frequency in described auxiliary carrier configuration information, ARFCN-ValueEUTRA adopts
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value;
Described bandwidth is that non-LTE standard bandwidth specifically comprises: described bandwidth adopts d1-Bandwidth-r10 and u1-Bandwidth-r10 field, d1-Bandwidth-r10 and u1-Bandwidth-r10 field is set to the Resource Block RB total value that auxiliary carrier wave comprises, and Bandwidth-Extend field is increased in described auxiliary carrier configuration information, being used to indicate d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the RB total value for the auxiliary carrier wave of nonstandard bandwidth.
Schedule information arranges module, be also that the auxiliary carrier wave RB information of terminal is distributed in instruction for described schedule information, when adopting resource allocation type Type0 that auxiliary carrier wave RB is distributed to terminal, bit mapping and the RBG that terminal auxiliary carrier wave RB information comprises Resource Block group RBG is distributed in instruction, wherein, the length of extended bit mapping or the numerical value of expansion RBG; When adopting resource allocation type Type1 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the bit mapping of indicating section RBG under RBG subset and this RBG subset, wherein, and the length that extended bit maps; When adopting resource allocation type Type2 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the starting position of continuous RBG and continuous RBG quantity, wherein, expands the numerical value of continuous RBG starting position and/or the quantity of continuous RBG.
Schedule information arranges module, also for also comprising when dispatching auxiliary carrier resource: the RB avoiding narrow-band interference signal within the scope of auxiliary carrier frequency rate and boundary belt place, both sides thereof.
As can be seen from the above scheme, TD-LTE network side is after determining available idle frequency range, and using this idle frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies; Then, by main carrier, the auxiliary carrier configuration information comprising auxiliary carrier center frequency and bandwidth is sent to terminal, described auxiliary carrier center frequency is the center frequency point of available free frequency range, and described auxiliary carrier bandwidths is non-LTE standard bandwidth; Finally, be the auxiliary carrier resource of terminal scheduling, by main carrier, schedule information informed to terminal, described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate.TD-LTE of the present invention can use the idle frequency range of non-LTE standard bandwidth as auxiliary carrier wave, and can dispatch and indicate all Resource Block avoiding narrow-band interference signal on auxiliary carrier wave, distributes to terminal.
Accompanying drawing explanation
The indicating means flow chart of the dynamic idle frequency that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the schematic diagram by the PDCCH in cell main carrier, schedule information being informed to terminal provided by the invention;
The indication mechanism structural representation of the dynamic idle frequency that Fig. 3 provides for the embodiment of the present invention;
The indicating device structural representation of the dynamic idle frequency that Fig. 4 provides for the embodiment of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in further detail.
The present invention is in order to dispatch and indicate the RB of the non-LTE standard bandwidth on auxiliary carrier wave, distribute to terminal, TD-LTE network side is after determining available idle frequency range, and using this idle frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies; Then, by main carrier, the auxiliary carrier configuration information comprising auxiliary carrier center frequency and bandwidth is sent to terminal, described auxiliary carrier center frequency is the center frequency point of available free frequency range, and described auxiliary carrier bandwidths is non-LTE standard bandwidth; Finally, be the auxiliary carrier resource of terminal scheduling, by main carrier, schedule information informed to terminal, described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate.
The indicating means flow chart of the dynamic idle frequency that Fig. 1 provides for the embodiment of the present invention, its concrete steps are:
Step 101, TD-LTE network side are determining available idle frequency range;
This step is prior art, repeats no more here;
In this step, TD-LTE network side can be evolution base station (eNB);
Step 102, TD-LTE network side are using this idle frequency range as auxiliary carrier wave, and described available free frequency range comprises the frequency that other narrowband systems takies;
The auxiliary carrier configuration information comprising auxiliary carrier center frequency and bandwidth is sent to terminal by main carrier by step 103, TD-LTE network side, and described auxiliary carrier center frequency is the center frequency point of available free frequency range, and described auxiliary carrier bandwidths is non-LTE standard bandwidth;
Here, can this auxiliary carrier configuration information be carried in the Dedicated Control Channel on main carrier, or in Common Control Channel, this auxiliary carrier configuration information can be carried at radio resource control and reset transmission in message (RRC Connection Reconfiguration).
Step 104, TD-LTE network side receive the configure-ack message of terminal feedback;
In the present invention, step 104 can be omitted;
Step 105, TD-LTE network side are the auxiliary carrier resource of terminal scheduling, and described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate;
Schedule information is informed to terminal by main carrier by step 106, TD-LTE network side;
In this step, can be by the PDCCH on main carrier by main carrier;
In this step, in fact schedule information is exactly distribute to the auxiliary carrier wave RB information of terminal, namely for terminal indicates the auxiliary carrier wave RB information distributing to terminal.
Fig. 2 is the schematic diagram by the PDCCH in cell main carrier, schedule information being informed to terminal provided by the invention, as shown in the figure, the frequency carrying PDCCH of TD-LTE network side on the main carrier of community, this PDCCH comprises control domain, be used to indicate and the different RB of the auxiliary carrier frequency rate of community are distributed to different terminals, and the narrow band frequency reservation on auxiliary carrier wave is not distributed.
In step 103 in FIG, this auxiliary carrier configuration information is carried in RRC replacement message and sends, and uses non-TD-LTE standard bandwidth as auxiliary carrier wave, so this auxiliary carrier center frequency and bandwidth will be expanded, below describes in detail.
In the prior art, auxiliary carrier center frequency f
0the frequency sequence number that can be indicated by absolute radio frames numbering-evolution global telecommunications connecting system value (EARFCN-ValueEUTRA) converts and obtains, and agreement supports 0 ~ 65535 frequency, has employed 46589 frequencies.Add auxiliary carrier wave in community after, the span of ARFCN-ValueEUTRA may be not.The present invention holds more multiband in order to cell carrier, expands ARFCN-ValueEUTRA.The present invention indicates in the relevant information element (IE) of auxiliary carrier frequency rate in auxiliary carrier configuration information, add field evolution global telecommunications connecting system expanding value (EARFCN-Extend), being used to indicate auxiliary carrier center frequency is the frequency of expanding location, and auxiliary carrier center frequency adopts formula (1) to calculate:
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value.
In the prior art, bandwidth in auxiliary carrier configuration information is TD-LTE standard bandwidth, only have 1.4,3,5,10,15 or 20MHz six kinds of bandwidth, consider that TD-LTE network side of the present invention and terminal support the polymerization of auxiliary carrier frequency rate, namely can support the bandwidth higher than TD-LTE standard bandwidth, each the nonstandard bandwidth lower than maximum TD-LTE standard bandwidth can be supported again.Therefore, the present invention adopts downlink bandwidth (dl-Bandwidth-r10) and upstream bandwidth (ul-Bandwidth-r10) field to be set to concrete auxiliary carrier wave RB total value, in this case, in order to reduce the byte number that this field takies, the auxiliary carrier wave RB total value of carrying can be set divided by the value after certain integer.In order to distinguish TD-LTE standard bandwidth, need to indicate in the IE of bandwidth and increase bandwidth expansion value (Bandwidth-Extend), length is 1 byte, is used to indicate the RB total value that d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the auxiliary carrier wave using nonstandard bandwidth.
In the step 106 of Fig. 1, the auxiliary carrier wave RB distributing to terminal is indicated to terminal, and concrete mode is as follows.
In the prior art, define three kinds of RB to distribute and instruction RB information mode, the present invention is directed to these three kinds of methods of salary distribution and provide modification, be greater than RB information all on the maximum standard bandwidth of TD-LTE to support to indicate, and avoid the frequency that the narrow-band interference signal on auxiliary carrier wave takies.
1) RB adopts resource allocation type 0(Type0) carry out Resourse Distribute
Auxiliary carrier frequency rate distributes type 0, bit mapping (bitmap) instruction is adopted to distribute to the auxiliary carrier wave RB information of terminal, this auxiliary carrier wave RB information is RB group (RBG, RB group), existing specified bit is mapped as 25 bytes, namely the size of 25 groups of RBG, RBG can be indicated according to total RB number of auxiliary carrier bandwidths
be decided to be 1,2,3,4, as shown in Table 1.
Table one
The present invention adopts the indicating range of the total RB number expanding auxiliary carrier bandwidths in two ways, and one is increase the length that RBG size is increase bit mappings to 5,6, two.Such as, when auxiliary carrier bandwidths is 30MHz, expand RBG size, can adopt that RBG is 6, bit mapping length is 25bit, the method does not need the byte number increasing instruction RB information, maybe can adopt that RBG is 4, bit mapping length is at least 38 bytes, this method increases the byte number of instruction RB information.
That is, in this fashion, when indicating auxiliary carrier wave RB information for terminal, employing be that the mode of bit mapping and RBG group is implemented, wherein, extended bit map byte number or or RBG group number indicate.
Under Type0 mode of the present invention, avoid narrow-band interference signal, namely TD-LTE network side does not give the RBG at terminal distribution narrow-band interference signal and boundary belt place, both sides thereof.
2) RB adopts resource allocation type Type1 to carry out Resourse Distribute
In this mode, in prior art be some RBG that the RBG of terminal distribution is in a RBG subset.First RBG is assigned as N number of RBG subset, and then adopts bit mapping to indicate some RBG in certain RBG subset, as RB information.Adopt method provided by the invention, RBG subset still conventionally divides, and for supporting the indicating range of auxiliary carrier bandwidths, then will increase the length of bit mapping, indicates some RBG in certain RBG subset.
In this mode, in order to avoid narrow-band interference signal, TD-LTE network side does not give the RBG at terminal distribution narrow-band interference signal and boundary belt place, both sides thereof.
3) RB adopts resource allocation type Type2 to carry out Resourse Distribute
In this mode, still conventionally, starting position (start) and the RBG number (length) of the continuous RBG of terminal distribution is designated as.But, in the present invention, in order to expand the indicating range of auxiliary carrier bandwidths, add the starting position of continuous RBG and the span of RBG number.
In this mode, in order to avoid narrow-band interference signal, TD-LTE network side does not give the RBG at terminal distribution narrow-band interference signal and boundary belt place, both sides thereof, namely can only be positioned at the auxiliary carrier bandwidths of narrow-band interference signal side for terminal distribution when distributing.
The indication mechanism structural representation of the dynamic idle frequency that Fig. 3 provides for the embodiment of the present invention, comprising: TD-LTE network side and terminal, wherein,
TD-LTE network side, for determining available free frequency range, using this available free frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies; By main carrier, the auxiliary carrier configuration information comprising auxiliary carrier center frequency and bandwidth is sent to terminal, described auxiliary carrier center frequency is the center frequency point of available free frequency range, and bandwidth is non-LTE standard bandwidth; By main carrier, schedule information is informed to terminal, described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate;
Terminal, for receiving the auxiliary carrier configuration information that TD-LTE network side sends, receives the schedule information that TD-LTE network side sends.
Within the system, TD-LTE network side, the center frequency point being also available free frequency range for described auxiliary carrier center frequency specifically comprises: described center frequency point by absolute radio frames number-evolution global telecommunications connecting system value ARFCN-ValueEUTRA indicates, if the span of ARFCN-ValueEUTRA is inadequate, expansion ARFCN-ValueEUTRA span supports the frequency range dynamically sharing frequency spectrum, and increase is used to indicate the EARFCN-Extend that auxiliary carrier center frequency is expanding location frequency in described auxiliary carrier configuration information, ARFCN-ValueEUTRA adopts
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value;
Described bandwidth is that non-LTE standard bandwidth specifically comprises: described bandwidth adopts d1-Bandwidth-r10 and u1-Bandwidth-r10 field, d1-Bandwidth-r10 and u1-Bandwidth-r10 field is set to the Resource Block RB total value that auxiliary carrier wave comprises, and Bandwidth-Extend field is increased in described auxiliary carrier configuration information, being used to indicate d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the RB total value for the auxiliary carrier wave of nonstandard bandwidth.
Within the system, TD-LTE network side, be also that the auxiliary carrier wave RB information of terminal is distributed in instruction for described schedule information, when adopting resource allocation type Type0 that auxiliary carrier wave RB is distributed to terminal, bit mapping and the RBG that terminal auxiliary carrier wave RB information comprises Resource Block group RBG is distributed in instruction, wherein, the length of extended bit mapping or the numerical value of expansion RBG; When adopting resource allocation type Type1 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the bit mapping of indicating section RBG under RBG subset and this RBG subset, wherein, and the length that extended bit maps; When adopting resource allocation type Type2 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the starting position of continuous RBG and continuous RBG quantity, wherein, expands the numerical value of continuous RBG starting position and/or the quantity of continuous RBG.
Within the system, TD-LTE network side, also for also comprising when dispatching auxiliary carrier resource: the RB avoiding narrow-band interference signal within the scope of auxiliary carrier frequency rate and boundary belt place, both sides thereof
The indicating device structural representation of the dynamic idle frequency that Fig. 4 provides for the embodiment of the present invention, comprising: auxiliary carrier configuration information arranges module, schedule information arranges module and transceiver module, wherein,
Auxiliary carrier configuration information arranges module, for determining available free frequency range, using this available free frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies, main carrier is set and will comprises the auxiliary carrier configuration information of auxiliary carrier center frequency and bandwidth, described auxiliary carrier center frequency is the center frequency point of available free frequency range, and bandwidth is non-LTE standard bandwidth;
Schedule information arranges module, and for arranging schedule information, described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate;
Transceiver module, for auxiliary carrier configuration information being sent to terminal by main carrier, informs to terminal by main carrier by schedule information.
In the apparatus, described auxiliary carrier configuration information arranges module, the center frequency point being also available free frequency range for described auxiliary carrier center frequency specifically comprises: described center frequency point by absolute radio frames number-evolution global telecommunications connecting system value ARFCN-ValueEUTRA indicates, if the span of ARFCN-ValueEUTRA is inadequate, expansion ARFCN-ValueEUTRA span supports the frequency range dynamically sharing frequency spectrum, and increase is used to indicate the EARFCN-Extend that auxiliary carrier center frequency is expanding location frequency in described auxiliary carrier configuration information, ARFCN-ValueEUTRA adopts
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value;
Described bandwidth is that non-LTE standard bandwidth specifically comprises: described bandwidth adopts d1-Bandwidth-r10 and u1-Bandwidth-r10 field, d1-Bandwidth-r10 and u1-Bandwidth-r10 field is set to the Resource Block RB total value that auxiliary carrier wave comprises, and Bandwidth-Extend field is increased in described auxiliary carrier configuration information, being used to indicate d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the RB total value for the auxiliary carrier wave of nonstandard bandwidth.
In the apparatus, schedule information arranges module, be also that the auxiliary carrier wave RB information of terminal is distributed in instruction for described schedule information, when adopting resource allocation type Type0 that auxiliary carrier wave RB is distributed to terminal, bit mapping and the RBG that terminal auxiliary carrier wave RB information comprises Resource Block group RBG is distributed in instruction, wherein, the length of extended bit mapping or the numerical value of expansion RBG; When adopting resource allocation type Type1 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the bit mapping of indicating section RBG under RBG subset and this RBG subset, wherein, and the length that extended bit maps; When adopting resource allocation type Type2 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the starting position of continuous RBG and continuous RBG quantity, wherein, the numerical value of continuous RBG starting position and/or the quantity of continuous RBG is expanded.
In the apparatus, schedule information arranges module, also for also comprising when dispatching auxiliary carrier resource: the RB avoiding narrow-band interference signal within the scope of auxiliary carrier frequency rate and boundary belt place, both sides thereof.
This device can be eNB.
As can be seen from the present invention, the present invention for terminal scheduling auxiliary carrier frequency rate and instruction auxiliary carrier frequency rate time, support that not limit auxiliary carrier bandwidths be LTE standard bandwidth, make the schedule information that the PDCCH on main carrier carries can indicate all RB resources on auxiliary carrier wave.And; in order to avoid mutually disturbing with other narrow band signal on auxiliary carrier wave; the present invention is according to three kinds of methods of salary distribution of auxiliary carrier wave RB; provide the improvement project indicating auxiliary carrier wave RB information; realizing is not the resource of narrow-band interference signal in the auxiliary carrier wave of terminal distribution and both sides boundary belt thereof, improves dynamic idle frequency efficiency.
More than lift preferred embodiment; the object, technical solutions and advantages of the present invention are further described; be understood that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. an indicating means for dynamic idle frequency, is characterized in that, the method comprises:
TD-LTE network side determination available free frequency range, using this available free frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies;
The auxiliary carrier configuration information comprising auxiliary carrier center frequency and bandwidth is sent to terminal by main carrier by TD-LTE, and described auxiliary carrier center frequency is the center frequency point of available free frequency range, and bandwidth is non-LTE standard bandwidth;
TD-LTE dispatches auxiliary carrier resource, by main carrier, schedule information is informed to terminal, and described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate.
2. indicating means as claimed in claim 1, it is characterized in that, described auxiliary carrier center frequency is the center frequency point of available free frequency range, comprising:
Described center frequency point by absolute radio frames number-evolution global telecommunications connecting system value ARFCN-ValueEUTRA indicates, if the span of ARFCN-ValueEUTRA is inadequate, expansion ARFCN-ValueEUTRA span supports the frequency range dynamically sharing frequency spectrum, and increase is used to indicate the EARFCN-Extend that auxiliary carrier center frequency is expanding location frequency in described auxiliary carrier configuration information, ARFCN-ValueEUTRA adopts
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value;
Described bandwidth is non-LTE standard bandwidth, comprising:
Described bandwidth adopts d1-Bandwidth-r10 and u1-Bandwidth-r10 field, d1-Bandwidth-r10 and u1-Bandwidth-r10 field is set to the Resource Block RB total value that auxiliary carrier wave comprises, and Bandwidth-Extend field is increased in described auxiliary carrier configuration information, being used to indicate d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the RB total value for the auxiliary carrier wave of nonstandard bandwidth.
3. indicating means as claimed in claim 1, is characterized in that, described auxiliary carrier configuration information is carried in radio resource control replacement message and is sent by main carrier.
4. indicating means as claimed in claim 1, is characterized in that, described schedule information is the auxiliary carrier wave RB information that terminal is distributed in instruction,
When adopting resource allocation type Type0 that auxiliary carrier wave RB is distributed to terminal, bit mapping and the RBG that terminal auxiliary carrier wave RB information comprises Resource Block group RBG is distributed in instruction, wherein, and the numerical value of the length that extended bit maps or expansion RBG;
When adopting resource allocation type Type1 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the bit mapping of indicating section RBG under RBG subset and this RBG subset, wherein, and the length that extended bit maps;
When adopting resource allocation type Type2 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the starting position of continuous RBG and continuous RBG quantity, wherein, expands the numerical value of continuous RBG starting position and/or the quantity of continuous RBG.
5. indicating mode as claimed in claim 4, is characterized in that, also comprises when dispatching auxiliary carrier resource: the RB avoiding narrow-band interference signal within the scope of auxiliary carrier frequency rate and boundary belt place, both sides thereof.
6. an indication mechanism for dynamic idle frequency, is characterized in that, comprising: TD-LTE network side and terminal, wherein,
TD-LTE network side, for determining available free frequency range, using this available free frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies; By main carrier, the auxiliary carrier configuration information comprising auxiliary carrier center frequency and bandwidth is sent to terminal, described auxiliary carrier center frequency is the center frequency point of available free frequency range, and bandwidth is non-LTE standard bandwidth; By main carrier, schedule information is informed to terminal, described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate;
Terminal, for receiving the auxiliary carrier configuration information that TD-LTE network side sends, receives the schedule information that TD-LTE network side sends.
7. system as claimed in claim 6, is characterized in that,
TD-LTE network side, the center frequency point being also available free frequency range for described auxiliary carrier center frequency specifically comprises: described center frequency point by absolute radio frames number-evolution global telecommunications connecting system value ARFCN-ValueEUTRA indicates, if the span of ARFCN-ValueEUTRA is inadequate, expansion ARFCN-ValueEUTRA span supports the frequency range dynamically sharing frequency spectrum, and increase is used to indicate the EARFCN-Extend that auxiliary carrier center frequency is expanding location frequency in described auxiliary carrier configuration information, ARFCN-ValueEUTRA adopts
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value;
Described bandwidth is that non-LTE standard bandwidth specifically comprises: described bandwidth adopts d1-Bandwidth-r10 and u1-Bandwidth-r10 field, d1-Bandwidth-r10 and u1-Bandwidth-r10 field is set to the Resource Block RB total value that auxiliary carrier wave comprises, and Bandwidth-Extend field is increased in described auxiliary carrier configuration information, being used to indicate d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the RB total value for the auxiliary carrier wave of nonstandard bandwidth.
8. indication mechanism as claimed in claim 5, is characterized in that,
TD-LTE network side, be also that the auxiliary carrier wave RB information of terminal is distributed in instruction for described schedule information, when adopting resource allocation type Type0 that auxiliary carrier wave RB is distributed to terminal, bit mapping and the RBG that terminal auxiliary carrier wave RB information comprises Resource Block group RBG is distributed in instruction, wherein, the length of extended bit mapping or the numerical value of expansion RBG; When adopting resource allocation type Type1 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the bit mapping of indicating section RBG under RBG subset and this RBG subset, wherein, and the length that extended bit maps; When adopting resource allocation type Type2 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the starting position of continuous RBG and continuous RBG quantity, wherein, expands the numerical value of continuous RBG starting position and/or the quantity of continuous RBG.
9. indication mechanism as claimed in claim 8, is characterized in that,
TD-LTE network side, also for also comprising when dispatching auxiliary carrier resource: the RB avoiding narrow-band interference signal within the scope of auxiliary carrier frequency rate and boundary belt place, both sides thereof.
10. an indicating device for dynamic idle frequency, is characterized in that, comprising: auxiliary carrier configuration information arranges module, schedule information arranges module and transceiver module, wherein,
Auxiliary carrier configuration information arranges module, for determining available free frequency range, using this available free frequency range as auxiliary carrier wave, described available free frequency range comprises the frequency that other narrowband systems takies, main carrier is set and will comprises the auxiliary carrier configuration information of auxiliary carrier center frequency and bandwidth, described auxiliary carrier center frequency is the center frequency point of available free frequency range, and bandwidth is non-LTE standard bandwidth;
Schedule information arranges module, and for arranging schedule information, described schedule information can indicate all Resource Block of the auxiliary carrier wave of nonstandard bandwidth, and can avoid the narrow-band interference signal within the scope of auxiliary carrier frequency rate;
Transceiver module, for auxiliary carrier configuration information being sent to terminal by main carrier, informs to terminal by main carrier by schedule information.
11. devices as claimed in claim 10, it is characterized in that, described auxiliary carrier configuration information arranges module, the center frequency point being also available free frequency range for described auxiliary carrier center frequency specifically comprises: described center frequency point by absolute radio frames number-evolution global telecommunications connecting system value ARFCN-ValueEUTRA indicates, if the span of ARFCN-ValueEUTRA is inadequate, expansion ARFCN-ValueEUTRA span supports the frequency range dynamically sharing frequency spectrum, and increase is used to indicate the EARFCN-Extend that auxiliary carrier center frequency is expanding location frequency in described auxiliary carrier configuration information, ARFCN-ValueEUTRA adopts
Wherein, f
lfor the lower end frequency of this auxiliary carrier frequency band bandwidth, N
offsfor the frequency point number corresponding to this lower end frequency, V
eARFCN-Extendfor field EARFCN-Extend value;
Described bandwidth is that non-LTE standard bandwidth specifically comprises: described bandwidth adopts d1-Bandwidth-r10 and u1-Bandwidth-r10 field, d1-Bandwidth-r10 and u1-Bandwidth-r10 field is set to the Resource Block RB total value that auxiliary carrier wave comprises, and Bandwidth-Extend field is increased in described auxiliary carrier configuration information, being used to indicate d1-Bandwidth-r10 and u1-Bandwidth-r10 field is standard bandwidth or the RB total value for the auxiliary carrier wave of nonstandard bandwidth.
12. indicating devices as claimed in claim 10, is characterized in that,
Schedule information arranges module, be also that the auxiliary carrier wave RB information of terminal is distributed in instruction for described schedule information, when adopting resource allocation type Type0 that auxiliary carrier wave RB is distributed to terminal, bit mapping and the RBG that terminal auxiliary carrier wave RB information comprises Resource Block group RBG is distributed in instruction, wherein, the length of extended bit mapping or the numerical value of expansion RBG; When adopting resource allocation type Type1 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the bit mapping of indicating section RBG under RBG subset and this RBG subset, wherein, and the length that extended bit maps; When adopting resource allocation type Type2 that auxiliary carrier wave RB is distributed to terminal, the auxiliary carrier wave RB information that terminal is distributed in instruction comprises the starting position of continuous RBG and continuous RBG quantity, wherein, expands the numerical value of continuous RBG starting position and/or the quantity of continuous RBG.
13. indicating devices as claimed in claim 12, is characterized in that,
Schedule information arranges module, also for also comprising when dispatching auxiliary carrier resource: the RB avoiding narrow-band interference signal within the scope of auxiliary carrier frequency rate and boundary belt place, both sides thereof.
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