CN101404526A - Descending control information processing method - Google Patents
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- CN101404526A CN101404526A CNA2008101755041A CN200810175504A CN101404526A CN 101404526 A CN101404526 A CN 101404526A CN A2008101755041 A CNA2008101755041 A CN A2008101755041A CN 200810175504 A CN200810175504 A CN 200810175504A CN 101404526 A CN101404526 A CN 101404526A
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- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
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Abstract
The invention discloses a downlink control information processing method which comprises: a master physical downlink control channel on a carrier unit supported by a terminal and at least one slave physical downlink control channel attributive to the master physical downlink control channel are set; wherein, the master physical downlink control channel is used for carrying the reference information of the slave physical downlink control channel; the reference information comprises at least one of the following: the position information of the slave physical downlink control channel, the format information of the slave physical downlink control channel and all the downlink control information of the slave physical downlink control channel for carrying the terminal. A transmitting method for the downlink control information in an LTE-Advanced system is provided by the invention; compared with the prior art, the downlink control information processing method can compatible with LTE-Advanced and LTE Release-8, improves the dispatching flexibility and the throughput of the LTE-Advanced system and reduces the blind detection times of the terminal.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of descending control information processing method.
Background technology
Fig. 1 shows Long Term Evolution (Long Term Evolution, abbreviate LTE as) Frequency Division Duplexing (FDD) (Frequency Division Duplex in the system, abbreviate FDD as) the frame structure schematic diagram of pattern and time division duplex (Time Division Duplex abbreviates TDD as) pattern.
As shown in Figure 1a, in the frame structure of fdd mode, the radio frames of a 10ms (radio frame) comprises that 20 length are the time slot of 0.5ms (slot), and the numbering of time slot is followed successively by 0～19, wherein, time slot 2i and 2i+1 composition length is subframe (subframe) i of 1ms.
Shown in Fig. 1 b, in the frame structure of tdd mode, the radio frame of a 10ms comprises that two length are the field of 5ms (half frame), wherein, half frame comprises 5 and longly is the subframe of 1ms, and subframe i is defined as 2 and longly is time slot 2i and the 2i+1 of 0.5ms.
In above-mentioned two kinds of frame structures, for standard cyclic prefix (Normal CyclicPrefix abbreviates Normal CP as), the symbol that it is 66.7us that time slot comprises 7 length, wherein the CP length of first symbol is 5.21us, and the CP length of all the other 6 symbols is 4.69us; For extended cyclic prefix (Extended Cyclic Prefix abbreviates Extended CP as), a time slot comprises 6 symbols, and the CP length of these 6 symbols is 16.67us.
At present, LTE Release-8 has defined 6 kinds of bandwidth: 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz, and LTE system definition following three kinds of downlink physical control channels.
One, physical down control format indicating channel (Physical control formatindicator channel, abbreviate PCFICH as): the information of this channel bearing is used in reference to and is shown in (the Physical downlink controlchannel of transmitting physical downlink channel control in the subframe, abbreviate PDCCH as) the number of OFDM symbol, wherein, PDCCH sends on first OFDM symbol of subframe, and the frequency location at PCFICH place is by system descending bandwidth and sub-district ID decision.
Two, physical mixing retransmission indicating chanel (Physical hybrid ARQ indicatorchannel abbreviates PHICH as): the ACK/NACK feedback information that is used to carry up biography data.Wherein, the number of PHICH channel, time-frequency position can be determined by system message among the PBCH and sub-district ID.
Three, PDCCH: be used to carry the uplink and downlink schedule information, and uplink power control information, wherein, PDCCH is mapped to successive control Channel Elements (Control ChannelElement, abbreviate CCE as) on, the form shfft of PDCCH is understood the CCE quantity that PDCCH takies.
Long Term Evolution plan (Long Term Evolution-Advanced abbreviates LTE-Advanced as) system of a new generation is the evolution version of LTE Release-8.It will satisfy the demand with LTE Release-8 backward compatibility, and promptly the terminal of LTE Release-8 can be worked in the network of LTE-Advanced, and the terminal of LTE-Advanced also can be worked in the network of LTERelease-8.In addition, LTE-Advanced can work under different frequency spectrum configurations, comprises the frequency spectrum configuration (for example continuous frequency spectrum resource of 100MHz) wideer than LTE Release-8, to reach higher performance and target peak speed.
Consider the compatibility of LTE-Advanced and LTE Release-8, for bandwidth greater than 20MHz, adopt the mode of spectrum aggregation (Carrier aggregation), two or more carrier wave unit (component carrier) assembles to support the downstream transmission bandwidth greater than 20MHz; Terminal can receive one or more carrier waves unit simultaneously by its ability; There is the LTE-A terminal that surpasses the 20MHz receiving ability can receive transmission on a plurality of carrier waves unit simultaneously.LTE Rel-8 terminal can only be received a transmission on the carrier wave unit, follows the Rel-8 standard as the structure of this carrier wave unit.
As can be seen, for the sending method that is carried on the Downlink Control Information among the PDCCH in the LTE-Advanced system, do not provide concrete solution in the existing technical scheme, therefore, need a kind of scheme that can address this problem.
Summary of the invention
Consider that a kind of technology of the needs that exist in the correlation technique solves the problem of the sending method that is carried on the Downlink Control Information among the PDCCH in the LTE-Advanced system and proposes the present invention, for this reason, main purpose of the present invention is to provide a kind of descending control information processing method, to address the above problem.
According to an aspect of the present invention, provide a kind of descending control information processing method.
Descending control information processing method according to the present invention comprises: on the carrier wave unit of terminal support, be provided with the primary physical down control channel and belong to the primary physical down control channel at least one from Physical Downlink Control Channel; Wherein, the primary physical down control channel is used to carry the parameter information from Physical Downlink Control Channel, and it is one of at least following that parameter information comprises: from the positional information of Physical Downlink Control Channel, from the format information of Physical Downlink Control Channel; All Downlink Control Information that are used to carry terminal from Physical Downlink Control Channel.
According to an aspect of the present invention, provide a kind of descending control information processing method.
Descending control information processing method according to the present invention comprises: on the carrier wave unit of terminal support, be provided with the primary physical down control channel and belong to the primary physical down control channel at least one from Physical Downlink Control Channel; Wherein, the primary physical down control channel is used to carry the Downlink Control Information of the carrier wave unit at its place, is used to carry the Downlink Control Information of the carrier wave unit except that the carrier wave unit at primary physical down control channel place that terminal supports from Physical Downlink Control Channel.
By above-mentioned at least one technical scheme of the present invention, the sending method of Downlink Control Information in the LTE-Advanced system is provided, than prior art, can compatible LTE-Advanced and LTE Release-8, improve the dispatching flexibility and the throughput of LTE-Advanced system, reduced the blind Detecting number of times of terminal.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 a is the frame structure schematic diagram according to the LTE system fdd mode of correlation technique;
Fig. 1 b is the frame structure schematic diagram according to the LTE system TDD mode of correlation technique;
Fig. 2 is the flow chart according to the descending control information processing method of the inventive method embodiment one;
Fig. 3 a is the schematic diagram according to the PDCCH structure of the inventive method embodiment one;
Fig. 3 b is the schematic diagram according to the PDCCH structure of the inventive method embodiment two;
Fig. 3 c is the schematic diagram according to the PDCCH structure of the inventive method embodiment three;
Fig. 4 is the flow chart according to the descending control information processing method of the inventive method embodiment two;
Fig. 5 a is the schematic diagram according to the PDCCH structure of the inventive method embodiment four;
Fig. 5 b is the schematic diagram according to the PDCCH structure of the inventive method embodiment five;
Fig. 5 c is the schematic diagram according to the PDCCH structure of the inventive method embodiment six;
Fig. 5 d is the schematic diagram according to the PDCCH structure of the inventive method embodiment seven.
Embodiment
Functional overview
Basic ideas of the present invention are: because the transmission for Downlink Control Information is not corresponding description of form of PDCCH in the present LTE-Advanced standard, at this problem, the invention provides a kind of descending control information processing method, by main PDCCH being set and from PDCCH, and at main PDCCH with from the corresponding information of PDCCH carrying, terminal obtains Downlink Control Information by reading main PDCCH and going up loaded information from PDCCH.
Describe the present invention in detail below in conjunction with accompanying drawing.
Method embodiment one
According to the embodiment of the invention, provide a kind of descending control information processing method.
Need to prove that for convenience of description, illustrated and described the technical scheme of method embodiment of the present invention hereinafter with the form of step, shown hereinafter step can be carried out in the computer system such as a set of computer-executable instructions.Though in relevant accompanying drawing, logical order has been shown, in some cases, can have carried out step shown or that describe with the order that is different from herein.
Fig. 2 is the flow chart according to the descending control information processing method of the embodiment of the invention, and as shown in Figure 2, this method may further comprise the steps (step S202 is to step S204):
Step S202, on the carrier wave unit of terminal support, be provided with the primary physical down control channel and belong to the primary physical down control channel at least one from Physical Downlink Control Channel, wherein, the number of primary physical down control channel can be 1;
Step S204, primary physical down control channel are used to carry the parameter information from Physical Downlink Control Channel, and it is one of at least following that parameter information comprises: from the positional information of Physical Downlink Control Channel, from the format information of Physical Downlink Control Channel; All Downlink Control Information that are used to carry terminal from Physical Downlink Control Channel, all Downlink Control Information that are used to carry terminal from Physical Downlink Control Channel, wherein, it is one of following that positional information can comprise: the quantity from the position of the carrier wave unit at Physical Downlink Control Channel place, from the original position of the control channel unit of Physical Downlink Control Channel in the carrier wave unit at its place, carrying from the control channel unit of Physical Downlink Control Channel, preferably, above-mentioned parameter information can also comprise the number from Physical Downlink Control Channel.
In specific implementation process, the primary physical down control channel with can be positioned on the same carrier wave unit from Physical Downlink Control Channel, also can be positioned on the different carrier wave unit, and each can carry the Downlink Control Information of one or more carrier waves unit from Physical Downlink Control Channel, wherein, the primary physical down control channel can be positioned on the carrier wave unit, and each can be positioned on one or more carrier waves unit from Physical Downlink Control Channel.
The technical scheme that provides by the embodiment of the invention, the sending method of Downlink Control Information in the LTE-Advanced system is provided, than prior art, can compatible LTE-Advanced and LTE Release-8, improve the dispatching flexibility and the throughput of LTE-Advanced system, reduced the blind Detecting number of times of terminal.
In Physical Downlink Control Channel (PDCCH), the form of Downlink Control Information (DownlinkControl Information) can be divided into following several: DCI format 0, DCIformat 1, DCI tormat 1A, DCI tormat 1B, DCI format 1C, DCI format1D, DCI format 2 and DCI format 2A; Wherein, DCI format 0 is used to indicate the scheduling of Physical Uplink Shared Channel (Physical uplink shared channel abbreviates PUSCH as); DCI format 1, DCI format 1A, DCI format 1B, DCI format1C, DCI format 1D are used to indicate the different mode of Physical Downlink Shared Channel (Physical downlinkshared channel abbreviates PDSCH as) code word scheduling; DCI format2, DCI format 2A is used for the different pattern of space division multiplexing; DCI format 3, DCIformat 3A are used to indicate the different mode of the power control instruction of Physical Uplink Control Channel (Physical uplink controlchannel abbreviates PUCCH as) and PUSCH.
In data transmission procedure, the transmission of business datum mainly contains 7 kinds of transmission modes, and every kind of pattern has corresponding D CI format, and the PDCCH pattern that subscriber equipment (user equipment abbreviates UE as) receives is by the semi-static configuration of high-level signaling.
Wherein, be used to transmit the physical resource of PDCCH with control channel unit (ControlChannel Element, abbreviate CCE as) be unit, a PDCCH may take 1,2,4,8 CCE, wherein, the size of a CCE is 9 resource groups (Resource Element Group abbreviates REG as), i.e. 36 Resource Units (Resource Element abbreviates RE as).For four kinds of PDCCH of 1,2,4,8 CCE, adopt tree-shaped set (Aggregation), that is: the PDCCH of a CCE can be from any CCE position; The PDCCH of two CCE is from even number CCE position; The CCE position of the integral multiple of the PDCCH of four CCE since four; The CCE position of the integral multiple of the PDCCH of eight CCE since eight.
The set of above-mentioned each grade (Aggregation level) defines a search volume, comprises the search volume of publicly-owned (common) and terminal proprietary (UE Specific).OFDM symbolic number that the controlled area that the CCE number of whole search volume is indicated by PCFICH in each descending sub frame is shared and the decision of the group number of PHICH, UE DCI format by transmission mode of living in the search volume carries out blind Detecting to all possible PDCCH code checks.
The number of the descending carrier unit of supposing the system (component carrier) is 5, and the descending receiving ability of LTE-Advanced terminal is identical with the system descending bandwidth.
The LTE-Advanced terminal is passed through blind Detecting, at least one that obtains to carry among the main PDCCH is from the parameter information of PDCCH, this parameter information can comprise quantity from PDCCH, respectively from the positional information of PDCCH, wherein, this positional information can for following one of at least: the CCE position from the carrier wave unit at PDCCH place, in the carrier wave unit at PDCCH place.
The LTE-Advanced terminal detects from PDCCH by the indication of this parameter information, detects respectively behind PDCCH, and the LTE-Advanced terminal is according to respectively carrying out follow-up associative operation from the control information that PDCCH carried.
Example one
Fig. 3 a shows the main PDCCH shown in the example one and from the indication schematic diagram of PDCCH, shown in Fig. 3 a, main PDCCH is positioned on the component carrier3, main PDCCH carries a plurality of parameter informations from PDCCH that belong to this main PDCCH separately to each descending carrier unit, in the figure, component carrier2, have from PDCCH on componentcarrier3 and the component carrier5, and component carrier2, carry its Downlink Control Information of place carrier wave unit separately from PDCCH on component carrier3 and the component carrier5.
The LTE-Advanced terminal is passed through blind Detecting, obtain to carry among the main PDCCH respectively behind the parameter information of PDCCH, the LTE-Advanced terminal detects component carrier2 according to the indication of this parameter information, on component carrier3 and the component carrier5 from PDCCH, detect component carrier2, behind the PDCCH on component carrier3 and the component carrier5, the LTE-Advanced terminal is according to component carrier2, follow-up associative operation is carried out in the control information from PDCCH carried on component carrier3 and the component carrier5.
Frame of broken lines is illustrated on this carrier wave unit not from PDCCH among Fig. 3 a, promptly on component carrier1 and the component carrier4 not from PDCCH, not bearing downlink control information.
Example two
Fig. 3 b shows the main PDCCH shown in the example two and from the indication schematic diagram of PDCCH, shown in Fig. 3 b, main PDCCH is positioned on the component carrier3, main PDCCH indicates a plurality of parameter informations from PDCCH that belong to this main PDCCH separately to each descending carrier unit, in the figure, have from PDCCH on component carrier3 and the componentcarrier5, and can carry the Downlink Control Information of a plurality of carrier waves unit from PDCCH on component carrier3 and the component carrier5, for example, on the component carrier3 from PDCCH carrying component carrier1, Downlink Control Information on component carrier2 and the component carrier3, the Downlink Control Information on PDCCH carrying component carrier4 and the component carrier5 on the component carrier5.
The LTE-Advanced terminal is passed through blind Detecting, obtain to carry among the main PDCCH respectively behind the parameter information of PDCCH, the LTE-Advanced terminal according to the indication of this parameter information detect on component carrier3 and the component carrier5 from PDCCH, after detecting the PDCCH on component carrier3 and the component carrier5, the LTE-Advanced terminal is carried out follow-up associative operation according to the control information from PDCCH carried on component carrier3 and the component carrier5.
Example three
Fig. 3 c shows the main PDCCH shown in the example three and from the indication schematic diagram of PDCCH, shown in Fig. 3 c, comprise that a main PDCCH and one are from PDCCH, wherein, this main PDCCH is positioned on the component carrier3, be positioned on a plurality of component carrier from PDCCH, and carry the Downlink Control Information of a plurality of component carrier, promptly should be positioned at component carrier3 from PDCCH, on component carrier4 and the component carrier5, and the Downlink Control Information on carrying component carrier4 and the componentcarrier5, main PDCCH carries this parameter information from PDCCH.
The LTE-Advanced terminal is passed through blind Detecting, obtain to carry among the main PDCCH behind the parameter information of PDCCH, on corresponding carrier wave unit, obtain the CCE data carried by data by its indication, and according to the carrier wave unit number, data carried by data on the corresponding carriers unit is merged, detect behind PDCCH, the LTE-Advanced terminal is according to carrying out follow-up associative operation from the Downlink Control Information that PDCCH carried.
By example one, example two and example three described methods, can increase the flexibility of system call, improve the throughput of system, reduce the blind Detecting number of times.
Method embodiment two
According to the embodiment of the invention, provide a kind of descending control information processing method.
Fig. 4 is the flow chart according to the descending control information processing method of the embodiment of the invention, and as shown in Figure 4, this method may further comprise the steps (step S402 is to step S404):
Step S402, on the carrier wave unit of terminal support, be provided with the primary physical down control channel and belong to the primary physical down control channel at least one from Physical Downlink Control Channel wherein, the number of primary physical down control channel can be 1;
Step S404, the primary physical down control channel is used to carry the Downlink Control Information of the carrier wave unit at its place, is used to carry the Downlink Control Information of the carrier wave unit except that the carrier wave unit at primary physical down control channel place that terminal supports from Physical Downlink Control Channel.
In specific implementation process, the primary physical down control channel with can be positioned on the same carrier wave unit from Physical Downlink Control Channel, also can be positioned on the different carrier wave unit, and each can carry the Downlink Control Information of one or more carrier waves unit from Physical Downlink Control Channel, wherein, the primary physical down control channel can be positioned on the carrier wave unit, can be positioned on one or more carrier waves unit from Physical Downlink Control Channel.
Preferably, the primary physical down control channel can also be used to carry the parameter information from Physical Downlink Control Channel, one of below parameter information comprises at least: from the positional information of Physical Downlink Control Channel, format information from Physical Downlink Control Channel, it is one of following that positional information can comprise: from the position of the carrier wave unit at Physical Downlink Control Channel place, original position from the control channel unit of Physical Downlink Control Channel in the carrier wave unit at its place, carrying is from the quantity of the control channel unit of Physical Downlink Control Channel, preferably, above-mentioned parameter information can also comprise the number from Physical Downlink Control Channel.
The number of the descending carrier unit of supposing the system is 5, and the descending receiving ability of LTE-Advanced terminal is identical with the system descending bandwidth.
The LTE-Advanced terminal is all carried out blind Detecting to main PDCCH with from PDCCH, obtain the Downlink Control Information on the carrier wave unit at its place of carrying among the main PDCCH, and the Downlink Control Information on other carrier wave unit of this LTE-Advanced terminal that from PDCCH, carry.
The LTE-Advanced terminal is passed through blind Detecting, at least one that obtains to carry among the main PDCCH is from the parameter information of PDCCH, this parameter information can comprise quantity from PDCCH, respectively from the positional information of PDCCH, wherein, this positional information can for following one of at least: the CCE position from the carrier wave unit at PDCCH place, in the carrier wave unit at PDCCH place.
The LTE-Advanced terminal detects from PDCCH by the indication of this parameter information, detects respectively behind PDCCH, and the LTE-Advanced terminal is according to respectively carrying out follow-up associative operation from the control information that PDCCH carried.
Example four
Fig. 5 a shows the main PDCCH shown in the example three and from the indication schematic diagram of PDCCH, shown in Fig. 5 a, main PDCCH is positioned on the component carrier3, the Downlink Control Information of this main PDCCH carrying component carrier3, in the figure, having only has on the componentcarrier3 from PDCCH, promptly main PDCCH be positioned at identical carrier wave unit from PDCCH on, and can carry the Downlink Control Information of a plurality of carrier waves unit from PDCCH on the component carrier3, for example, the Downlink Control Information on PDCCH carrying component carrier2 and the component carrier4 on the component carrier3 should be 2 from component carrier number of PDCCH correspondence promptly.
At this moment, the LTE-Advanced terminal can be carried out blind Detecting, obtains the Downlink Control Information from PDCCH on main PDCCH and the component carrier3, and carries out follow-up associative operation.
Preferably, main PDCCH can also carry a plurality of parameter informations from PDCCH that belong to this main PDCCH, at this moment, the LTE-Advanced terminal is passed through blind Detecting, obtain to carry among the main PDCCH respectively behind the parameter information of PDCCH, the LTE-Advanced terminal according to the indication of this parameter information detect on the component carrier3 from PDCCH, after detecting the PDCCH on the component carrier3, the LTE-Advanced terminal is carried out follow-up associative operation according to the control information from PDCCH carried on the component carrier3.
Example five
Fig. 5 b shows the main PDCCH shown in the example four and from the indication schematic diagram of PDCCH, shown in Fig. 5 b, main PDCCH is positioned on the component carrier3, the Downlink Control Information of this main PDCCH carrying component carrier3, in the figure, having only has on the componentcarrier4 from PDCCH, promptly main PDCCH be positioned at different carrier wave unit from PDCCH on, and can carry the Downlink Control Information of a plurality of carrier waves unit from PDCCH on the component carrier4, for example, on the component carrier3 from PDCCH carrying component carrier1, Downlink Control Information on component carrier4 and the component carrier5 should be 3 from the component carrier number of PDCCH correspondence promptly.
At this moment, the LTE-Advanced terminal can be carried out blind Detecting, obtains the Downlink Control Information from PDCCH on main PDCCH and the component carrier4, and carries out follow-up associative operation.
Preferably, main PDCCH can also carry a plurality of parameter informations from PDCCH that belong to this main PDCCH, at this moment, the LTE-Advanced terminal is passed through blind Detecting, obtain to carry among the main PDCCH respectively behind the parameter information of PDCCH, the LTE-Advanced terminal according to the indication of this parameter information detect on the component carrier4 from PDCCH, after detecting the PDCCH on the component carrier4, the LTE-Advanced terminal is carried out follow-up associative operation according to the control information from PDCCH carried on the component carrier4.
Example six
Fig. 5 c shows the main PDCCH shown in the example five and from the indication schematic diagram of PDCCH, shown in Fig. 5 c, main PDCCH is positioned on the component carrier3, the Downlink Control Information of this main PDCCH carrying component carrier3, in the figure, have from PDCCH on componentcarrier4 and the component carrier5, promptly main PDCCH be positioned at different carrier wave unit from PDCCH on, and can carry the Downlink Control Information of a plurality of carrier waves unit from PDCCH on component carrier4 and the componentcarrier5, for example, all carry component carrier1 from PDCCH on component carrier4 and the component carrier5, component carrier2, Downlink Control Information on component carrier4 and the component carrier5, promptly each component carrier number from the PDCCH correspondence is 4.
At this moment, the LTE-Advanced terminal can be carried out blind Detecting, obtains the Downlink Control Information from PDCCH on PDCCH, the component carrier5 on main PDCCH, the component carrier4, and carries out follow-up associative operation.
Preferably, main PDCCH can also carry a plurality of parameter informations from PDCCH that belong to this main PDCCH, at this moment, the LTE-Advanced terminal is passed through blind Detecting, obtain to carry among the main PDCCH respectively behind the parameter information of PDCCH, the LTE-Advanced terminal according to the indication of this parameter information detect on component carrier4 and the componentcarrier5 from PDCCH, after detecting the PDCCH on component carrier4 and the componentcarrier5, the LTE-Advanced terminal is carried out follow-up associative operation according to the control information from PDCCH carried on componentcarrier4 and the component carrier5 respectively.
Example seven
Fig. 5 d shows the main PDCCH shown in the example six and from the indication schematic diagram of PDCCH, shown in Fig. 5 d, is carrying top signaling in the PDSCH of m subframe master PDCCH indication, and this top signaling indication is from information such as the position of PDCCH and forms.Since (m+n) individual subframe, the LTE-Advanced terminal by the configuration of m subframe top signaling to detecting from PDCCH and carrying out associative operation by the control information of its carrying, till new signaling configuration, wherein, m, the n value is a nonnegative integer.
The LTE-Advanced terminal is carried out follow-up associative operation according to the control information on the carrier wave unit at main PDCCH place, at high-level signaling during by the PDSCH of carrier wave unit carrying, the LTE-Advanced terminal according to the carrier wave unit of this high-level signaling indication and format detection from PDCCH, detect behind PDCCH, the LTE-Advanced terminal is carried out follow-up associative operation according to the control information from PDCCH carried on componentcarrier4 and the component carrier5.
As mentioned above, by means of descending control information processing method provided by the invention, the sending method of Downlink Control Information in the LTE-Advanced system is provided, than prior art, can compatible LTE-Advanced and LTE Release-8, improve the dispatching flexibility and the throughput of LTE-Advanced system, reduced the blind Detecting number of times of terminal.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. a descending control information processing method is characterized in that, comprising:
On the carrier wave unit of terminal support, be provided with the primary physical down control channel and belong to described primary physical down control channel at least one from Physical Downlink Control Channel;
Wherein, described primary physical down control channel is used to carry described parameter information from Physical Downlink Control Channel, and it is one of at least following that described parameter information comprises: from the positional information of Physical Downlink Control Channel, from the format information of Physical Downlink Control Channel; Described all Downlink Control Information that are used to carry terminal from Physical Downlink Control Channel.
2. method according to claim 1 is characterized in that, described primary physical down control channel and describedly be positioned on the same carrier wave unit from Physical Downlink Control Channel.
3. method according to claim 1 is characterized in that, described primary physical down control channel is positioned on the different carrier wave unit from Physical Downlink Control Channel with described.
4. method according to claim 1 is characterized in that, each carries the Downlink Control Information of one or more carrier waves unit from Physical Downlink Control Channel.
5. method according to claim 1 is characterized in that, described primary physical down control channel is positioned on the carrier wave unit.
6. method according to claim 1 is characterized in that, each is positioned on one or more carrier waves unit from Physical Downlink Control Channel.
7. according to each described method in the claim 1 to 6, it is characterized in that the number of described primary physical down control channel is 1.
8. according to each described method in the claim 1 to 6, it is characterized in that it is one of at least following that described positional information comprises: quantity from the position of the carrier wave unit at Physical Downlink Control Channel place, from the original position of the control channel unit of Physical Downlink Control Channel in the carrier wave unit at its place, carrying from the control channel unit of Physical Downlink Control Channel.
9. a descending control information processing method is characterized in that, comprising:
On the carrier wave unit of terminal support, be provided with the primary physical down control channel and belong to described primary physical down control channel at least one from Physical Downlink Control Channel;
Wherein, described primary physical down control channel is used to carry the Downlink Control Information of the carrier wave unit at its place, the described Downlink Control Information that is used to carry the carrier wave unit except that the carrier wave unit at described primary physical down control channel place that terminal supports from Physical Downlink Control Channel.
10. method according to claim 9 is characterized in that, described primary physical down control channel and describedly be positioned on the same carrier wave unit from Physical Downlink Control Channel.
11. method according to claim 9 is characterized in that, described primary physical down control channel is positioned on the different carrier wave unit from Physical Downlink Control Channel with described.
12. method according to claim 9 is characterized in that, each carries the Downlink Control Information of one or more carrier waves unit from Physical Downlink Control Channel.
13 methods according to claim 9 is characterized in that, described primary physical down control channel is positioned on the carrier wave unit.
14. method according to claim 9 is characterized in that, each is positioned on one or more carrier waves unit from Physical Downlink Control Channel.
15. method according to claim 9 is characterized in that, the number of described primary physical down control channel is 1.
16. method according to claim 9, it is characterized in that, controlled by high-level signaling from the parameter information of Physical Downlink Control Channel, it is one of at least following that described parameter information comprises: from the positional information of Physical Downlink Control Channel, from the format information of Physical Downlink Control Channel.
17. method according to claim 9 is characterized in that, also comprises:
Described primary physical down control channel is used to carry described parameter information from Physical Downlink Control Channel, and it is one of at least following that described parameter information comprises: from the positional information of Physical Downlink Control Channel, from the format information of Physical Downlink Control Channel.
18. according to claim 16 or 17 described methods, it is characterized in that it is one of at least following that described positional information comprises: quantity from the position of the carrier wave unit at Physical Downlink Control Channel place, from the original position of the control channel unit of Physical Downlink Control Channel in the carrier wave unit at its place, carrying from the control channel unit of Physical Downlink Control Channel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810175504 CN101404526B (en) | 2008-11-03 | 2008-11-03 | Descending control information processing method |
| PCT/CN2009/072925 WO2010060308A1 (en) | 2008-11-03 | 2009-07-27 | Processing method of downlink control information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810175504 CN101404526B (en) | 2008-11-03 | 2008-11-03 | Descending control information processing method |
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| Publication number | Publication date |
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| WO2010060308A1 (en) | 2010-06-03 |
| CN101404526B (en) | 2013-05-01 |
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