CN101651996B - Method and system for transmitting index of component carrier and control format indicating value - Google Patents

Method and system for transmitting index of component carrier and control format indicating value Download PDF

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Publication number
CN101651996B
CN101651996B CN200910169500.7A CN200910169500A CN101651996B CN 101651996 B CN101651996 B CN 101651996B CN 200910169500 A CN200910169500 A CN 200910169500A CN 101651996 B CN101651996 B CN 101651996B
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China
Prior art keywords
component carrier
physical downlink
indicated value
index
downlink control
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CN200910169500.7A
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Chinese (zh)
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CN101651996A (en
Inventor
李卫军
戴博
郁光辉
吴欣
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Global Innovation Polymerization LLC
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ZTE Corp
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Priority to CN200910169500.7A priority Critical patent/CN101651996B/en
Publication of CN101651996A publication Critical patent/CN101651996A/en
Priority to PCT/CN2010/073427 priority patent/WO2011032397A1/en
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Publication of CN101651996B publication Critical patent/CN101651996B/en
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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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Abstract

The invention discloses a method and a system for transmitting an index of a component carrier and a control format indicating value. A base station generates the downlink control information with the index of the component carrier and the control format indicating value according to the component carrier in a physical downlink sharing channel, the control format indicating value of the component carrier and a corresponding relationship between the index for indicating the component carrier and an indicating field of the control format indicating value in the format of the downlink control information, and the downlink control information is transmitted to user equipment; the user equipment receives the downlink control information and analyzes the index of the component carrier and the control format indicating value from the downlink control information according to the corresponding relationship between the index for indicating the component carrier and the indicating field of the control format indicating value. The invention definitely indicates the index of the component carrier and the control format indicating value, effectively avoids adverse effects brought by PCFICH detection errors in cross-carrier dispatching and solves the transmission problem of the downlink control information in a carrier polymerization mode.

Description

A kind of index of component carrier and the transmission method of control format indicated value and system
Technical field
The present invention relates to field of mobile wireless communication, particularly relate to the index of component carrier in wireless communication system and the transmission method of control format indicated value and system.
Background technology
Long Term Evolution (LTE, Long Term Evolution) radio frames (radio frame) in system comprises Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplex) frame structure of pattern and time division duplex (TDD, Time Division Duplex) pattern.
The frame structure of fdd mode, as shown in Figure 1, the radio frames of one 10 milliseconds (ms) is 0.5ms by 20 length, and time slot (slot) composition of numbering 0 ~ 19, time slot 2i and 2i+1 forms subframe (subframe) i that length is 1ms.
The frame structure of tdd mode, as shown in Figure 2, the radio frames of a 10ms is made up of two long fields (half frame) for 5ms, and it is the subframe of 1ms that a field comprises 5 length, and subframe i is defined as 2 long time slot 2i and 2i+1 for 0.5ms.In above-mentioned two kinds of frame structures, for standard cyclic prefix (Normal CP, Normal Cyclic Prefix), a time slot comprises the symbol that 7 length are 66.7 microseconds (us), wherein the CP length of first symbol is 5.21us, and the length of all the other 6 symbols is 4.69us; For extended cyclic prefix (Extended CP, Extended CyclicPrefix), a time slot comprises 6 symbols, and the CP length of all symbols is 16.67us.
Following three kinds of downlink physical control channels are also defined: physical down control format indicating channel (PCFICH, Physical Control Format Indicator Channel) in LTE system; Physical hybrid automatic repeat request indicator channel (PHICH, Physical Hybrid Automatic RetransmissionRequest Indicator Channel); Physical Downlink Control Channel (PDCCH, Physical DownlinkControl Channel), wherein:
(1), the information of PCFICH carrying is used to indicate the OFDM (OFDM transmitting PDCCH in a subframe, Orthogonal Frequency Division Multiplexing) number of symbol, first OFDM symbol of subframe sends, place frequency location is determined by system descending bandwidth and cell ID (ID, Identity).
This indication information is called " control format instruction (CFI, control format indicator) ", CFI value 1,2 or 3.For system bandwidth N RB DL > 10 System, the number of the orthogonal frequency division multiplex OFDM symbol transmitted for Downlink Control Information (DCI, Downlink Control Information) is 1,2 or 3, is indicated by the value of CFI.For system bandwidth N RB DL ≤ 10 System, the number of the orthogonal frequency division multiplex OFDM symbol transmitted for Downlink Control Information (DCI, Downlink Control Information) is 2,3 or 4, is indicated by CFI+1.
(2), PHICH is for carrying acknowledgement/non-acknowledgement (ACK/NACK) feedback information of uplink transmission data.Number, the time-frequency location of PHICH can be determined by the system message in the Physical Broadcast Channel of the descending carrier at PHICH place (PBCH, Physical Broadcast Channel) and community ID.
(3), PDCCH is used for bearing downlink control information (DCI, Downlink ControlInformation), comprising: uplink and downlink schedule information, and uplink power control information.The form (DCI format) of PDCCHDCI is divided into following several: DCI format 0, DCI format 1, DCIformat 1A, DCI format 1B, DCI format 1C, DCI format 1D, DCI format 2, DCI format 2A, DCI format 3 and DCI format 3A etc.; Wherein:
DCI format 0, is used to indicate the scheduling of Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel) for DCI format 0;
DCI format 1, DCI format 1A, DCI format 1B, DCI format 1C, DCI format1D are used for the different mode that a PDSCH code word is dispatched;
DCI format 2, DCI format 2A are used for the different mode of space division multiplexing;
DCI format 3, DCI format 3A are used for the different mode of the power control instruction of Physical Uplink Control Channel (PUCCH, PhysicalUplink Control Channel) and PUSCH.
The version number of LTE corresponds in the agreement of R8 (Release 8), defines 6 kinds of bandwidth: 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz.LTE-Advanced (FurtherAdvancements for E-UTRA) is the evolution version of LTE Release-8.Except to meet or more than 3GPP TR 25.913: except all related needs of " Requirements for Evolved UTRA (E-UTRA) and EvolvedUTRAN (E-UTRAN) ", also will meet or exceed the demand of IMT-Advanced that International Telecommunication Union ITU-R proposes.
Wherein, refer to the demand of LTE Release-8 backward compatibility: the terminal of LTE Release-8 can work in the network of LTE-Advanced; The terminal of LTE-Advanced can work in the network of LTERelease-8.
In addition, LTE-Advanced at the spectrum disposition of different size, should be able to work, to reach higher performance and Target peak rate under comprising the spectrum disposition (the continuous print frequency spectrum resource as 100MHz) wider than LTE Release-8.Consider the compatibility with LTE Release-8, for the bandwidth being greater than 20MHz, adopt the mode of Carrier aggregation (carrier aggregation), that is:
● two or more component carrier (component carriers) assembles the downstream transmission bandwidth to support to be greater than 20MHz;
● terminal can receive one or more component carrier (component carriers) by its ability simultaneously.
There is the transmission that can simultaneously to receive more than the LTE-A terminal of 20MHz bandwidth reception capabilities on multiple component carrier.The terminal of LTE Rel-8 then can only receive the transmission on one-component carrier wave, and the structure as this component carrier follows Rel-8 specification.
At present, in LTE-Advanced standard, the form of the transmission of descending control signaling and PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) is had to draw a conclusion:
The PDSCH resource that PDCCH on √ one-component carrier wave indicates same component carrier and the PUSCH resource of upstream components carrier wave be uniquely connected
Carrier wave indicator field (carrier indicator field) is not had in ■ DCI format
◆ the structure (identical coding, the identical resource mapping based on CCE) of PDCCH and DCI formats in i.e.Rel-8 version
PDCCH on √ one-component carrier wave uses carrier wave indicator field (carrier indicator field) can indicate PDSCH or the PUSCH resource of the one-component carrier wave in multiple component carrier.
The carrier wave indicator field (carrierindicator field) of 1-3bit is expanded in the DCI formats of ■ Rel-8;
◆ reuse the structure (identical coding, the identical resource mapping based on CCE) of Rel-8PDCCH;
■ needs the PCFICH of the component carrier of research carrying PDSCH to detect the solution of mistake.
The number of times limiting blind check under √ two kinds of modes is all desirable.
The whether semi-static setting of existence in √ carrier wave indicating device (CI) territory.
When PDCCH on one-component carrier wave uses carrier wave indicator field (carrier indicator field) to indicate the PDSCH resource of another component carrier, if UE is to the PCFICH Channel Detection mistake of the component carrier at PDSCH place, then UE produces erroneous judgement to the OFDM symbol that PDSCH starts and makes mistakes to the data acquisition of the transmission bearer block of PDSCH carrying, UE is by the data of storage errors in the HARQ buffer memory (buffer) and feed back NACK, and make HARQ thereafter merge generation mistake, there is certain harmful effect to the performance of system.
Summary of the invention
Technical problem to be solved by this invention is, a kind of index of component carrier and the transmission method of control format indicated value and system are provided, for clearly indicating index and the control format indicated value of component carrier, effectively avoid detecting the wrong adverse effect brought across PCFICH during carrier dispatching, when solving carrier aggregation mode, the problem that Downlink Control Information sends.
In order to solve the problem, the present invention proposes a kind of index of component carrier and the transmission method of control format indicated value, comprising the steps:
Base station is according to the control format indicated value of the component carrier at Physical Downlink Shared Channel place with this component carrier, and in descending control information format, be used to indicate the corresponding relation of the index of component carrier and the instructions field of control format indicated value, generate and send to subscriber equipment with the index of described component carrier and the Downlink Control Information of control format indicated value;
Subscriber equipment receives described Downlink Control Information, and the corresponding relation of instructions field according to the index and control format indicated value that are used to indicate component carrier in descending control information format, from described Downlink Control Information, parse index and the control format indicated value of described component carrier.
In the corresponding relation of instructions field described in described descending control information format, the component carrier at the Physical Downlink Shared Channel place corresponding to Physical Downlink Control Channel of this descending control information format of index instruction carrying of described component carrier.
In described descending control information format, the instructions field being used to indicate the index of one-component carrier wave and the control format indicated value of this component carrier is represented by n-bit, 2 nbe one-to-one relationship, wherein 2≤n≤4 between the state of kind and indication information.
As n=2, one of four kinds of states of 2 bits and one of following indication information are one-to-one relationship:
The component carrier c0 of Physical Downlink Shared Channel at this Physical Downlink Control Channel place that this Physical Downlink Control Channel is corresponding transmits;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c1 specified, or a1, or a2.
As n=3, one of eight kinds of states of 3 bits and one of following indication information are one-to-one relationship:
The component carrier c0 of Physical Downlink Shared Channel at this Physical Downlink Control Channel place that this Physical Downlink Control Channel is corresponding transmits;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c1 specified, or a1, or a2.
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c2 specified, or a1, or a2.
As n=4, one of 16 kinds of states of 4 bits and one of following indication information are one-to-one relationship:
The component carrier c0 of Physical Downlink Shared Channel at this Physical Downlink Control Channel place that this Physical Downlink Control Channel is corresponding transmits;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c1 specified, or a1, or a2.
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c2 specified, or a1, or a2;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c3 specified, or a1, or a2;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c4 specified, or a1, or a2.
The value of described a0, a1, a2 is 1,2,3; Described c0, c1, c2, c3, c4 are different component carriers.
The present invention also provides a kind of index of component carrier and the transmission system of control format indicated value, comprises base station and subscriber equipment, wherein:
Described base station, for according to the component carrier at Physical Downlink Shared Channel place and the control format indicated value of this component carrier, and in descending control information format, be used to indicate the corresponding relation of the index of component carrier and the instructions field of control format indicated value, generate and send to subscriber equipment with the index of described component carrier and the Downlink Control Information of control format indicated value;
Described subscriber equipment, for receiving described Downlink Control Information, and the corresponding relation of instructions field according to the index and control format indicated value that are used to indicate component carrier in descending control information format, from described Downlink Control Information, parse index and the control format indicated value of described component carrier.
In the corresponding relation of instructions field described in described descending control information format, the component carrier at the Physical Downlink Shared Channel place corresponding to Physical Downlink Control Channel of this descending control information format of index instruction carrying of described component carrier.
In described descending control information format, the instructions field being used to indicate the index of one-component carrier wave and the control format indicated value of this component carrier is represented by n-bit, 2 nbe one-to-one relationship, wherein 2≤n≤4 between the state of kind and indication information.
The index of component carrier of the present invention and the transmission method of control format indicated value and system, in Downlink Control Information, by improving the territory in descending control information format (DCI format), a territory in DCIformat is utilized to indicate (control format indicator) value to the control format of the index with this component carrier that indicate one-component carrier wave.This territory be used to indicate is 2,3 or 4 bits, and bit corresponding 4,8 or 16 kind of state in the territory utilizing this to be used to indicate indicate the index of various component carrier and the control format indicated value of this component carrier respectively.The transmission method of the carrier index that the present invention provides for LTE-Advanced and control format indicated value and system, effectively can avoid detecting across PCFICH during carrier dispatching the adverse effect that mistake brings, be conducive to the realization of LTE-Advanced system.
Accompanying drawing explanation
Fig. 1 is the frame structure schematic diagram of fdd mode in prior art;
Fig. 2 is the frame structure schematic diagram of tdd mode in prior art;
Fig. 3 is the index of component carrier in the present invention and the transmission schematic diagram of control format indicated value.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
In LTE-Advanced wireless communication system, for effectively avoiding detecting the wrong adverse effect brought across PCFICH during carrier dispatching, when solving carrier aggregation mode, the problem that Downlink Control Information sends, the invention provides a kind of index of component carrier and the transmission method of control format indicated value and system.In Downlink Control Information, by improving the territory in descending control information format (DCI format), a territory in DCIformat is utilized to indicate (control format indicator) value to the control format of the index with this component carrier that indicate one-component carrier wave.This territory be used to indicate is 2,3 or 4 bits, and bit corresponding 4,8 or 16 kind of state in the territory utilizing this to be used to indicate indicate the index of various component carrier and the control format indicated value of this component carrier respectively.The transmission method of the carrier index that the present invention provides for LTE-Advanced and control format indicated value and system, effectively can avoid detecting across PCFICH during carrier dispatching the adverse effect that mistake brings, be conducive to the realization of LTE-Advanced system.
The index of component carrier of the present invention and the transmission method of control format indicated value, as shown in Figure 3, comprise the steps:
Base station is according to the control format indicated value of the component carrier at Physical Downlink Shared Channel place with this component carrier, and in descending control information format, be used to indicate the corresponding relation of the index of component carrier and the instructions field of control format indicated value, generate and send to subscriber equipment with the index of described component carrier and the Downlink Control Information of control format indicated value;
Subscriber equipment receives described Downlink Control Information, and the corresponding relation of instructions field according to the index and control format indicated value that are used to indicate component carrier in descending control information format, from described Downlink Control Information, parse index and the control format indicated value of described component carrier.
Wherein, in the corresponding relation of described instructions field, the component carrier at the PDSCH place corresponding to PDCCH of index instruction this descending control information format of carrying (DCI format) of described component carrier.
Wherein, in described descending control information format, the instructions field being used to indicate the index of one-component carrier wave and the control format indicated value of this component carrier is represented by n (2≤n≤4) bit.
The index of component carrier of the present invention and the transmission system of control format indicated value, as shown in Figure 3, comprise base station and subscriber equipment, wherein:
Described base station, for according to the component carrier at Physical Downlink Shared Channel place and the control format indicated value of this component carrier, and in descending control information format, be used to indicate the corresponding relation of the index of component carrier and the instructions field of control format indicated value, generate and send to subscriber equipment with the index of described component carrier and the Downlink Control Information of control format indicated value;
Described subscriber equipment, for receiving described Downlink Control Information, and the corresponding relation of instructions field according to the index and control format indicated value that are used to indicate component carrier in descending control information format, from described Downlink Control Information, parse index and the control format indicated value of described component carrier.
Wherein, in the corresponding relation of described instructions field, the component carrier at the PDSCH place corresponding to PDCCH of index instruction this descending control information format of carrying (DCI format) of described component carrier.
Wherein, in described descending control information format, the instructions field being used to indicate the index of one-component carrier wave and the control format indicated value of this component carrier is represented by n (2≤n≤4) bit.
Illustrate further, in described transmission method and transmission system, during the control format indicated value of the index of instruction one-component carrier wave and this component carrier, for the different values of n, indicate different information:
As n=2, one of four kinds of states of 2bit and one of following indication information one_to_one corresponding:
The component carrier c0 of PDSCH at this PDCCH place that this PDCCH of √ is corresponding transmits;
PDSCH corresponding to this PDCCH of √ to transmit and the control format indicated value of this component carrier is a0 at a component carrier c1 specified, or a1, or a2;
As n=3, one of eight kinds of states of 3bit and one of following indication information one_to_one corresponding:
The component carrier c0 of PDSCH at this PDCCH place that this PDCCH of √ is corresponding transmits;
PDSCH corresponding to this PDCCH of √ to transmit and the control format indicated value of this component carrier is a0 at a component carrier c1 specified, or a1, or a2;
PDSCH corresponding to this PDCCH of √ to transmit and the control format indicated value of this component carrier is a0 at a component carrier c2 specified, or a1, or a2;
As n=4, one of 16 kinds of states of 4bit and one of following indication information one_to_one corresponding:
The component carrier c0 of PDSCH at this PDCCH place that this PDCCH of √ is corresponding transmits;
PDSCH corresponding to this PDCCH of √ to transmit and control format indicated value is a0 at a component carrier c1 specified, or a1, or a2;
PDSCH corresponding to this PDCCH of √ to transmit and control format indicated value is a0 at a component carrier c2 specified, or a1, or a2;
PDSCH corresponding to this PDCCH of √ to transmit and control format indicated value is a0 at a component carrier c3 specified, or a1, or a2;
PDSCH corresponding to this PDCCH of √ to transmit and control format indicated value is a0 at a component carrier c4 specified, or a1, or a2;
Further, the value of above-mentioned a0, a1, a2 is 1,2,3; Above-mentioned c0, c1, c2, c3, c4 are different component carriers.
Based on above-mentioned transmission method and transmission system, and composition graphs 3 is when further illustrating the transmission of the index of specific implementation component carrier in the present invention and control format indicated value, described instructions field adopts the n-bit instruction index of component carrier and the specific embodiment of control format indicated value.
Embodiment 1:n=2;
As n=2,4 kinds of states 00 ~ 11 of 2bit are corresponding with following indication information:
√ 00 represents that the component carrier c0 of PDSCH at this PDCCH place that this PDCCH is corresponding transmits;
√ 01,10,11 represents that PDSCH corresponding to this PDCCH to transmit and the control format indicated value (CFI) of this component carrier is 1 at a component carrier c1 specified, or 2, or 3;
Instructions field value PDSCH carrier wave CFI value
00 C0 -
01 C1 1
10 C1 2
11 C1 3
Embodiment 2:n=3;
As n=3,8 kinds of states 000 ~ 111 of 3bit are corresponding with following indication information:
√ 000 represents that the component carrier c0 of PDSCH at this PDCCH place that this PDCCH is corresponding transmits;
PDSCH corresponding to this PDCCH of √ 001,010,011 to transmit and the control format indicated value (CFI) of this component carrier is 1 at a component carrier c1 specified, or 2, or 3;
PDSCH corresponding to this PDCCH of √ 100,101,110 to transmit and the control format indicated value (CFI) of this component carrier is 1 at a component carrier c2 specified, or 2, or 3;
√ 111 state retains;
Instructions field value PDSCH carrier wave CFI value
000 C0 -
001 C1 1
010 C1 2
011 C1 3
100 C2 1
101 C2 2
110 C2 3
111 - -
Embodiment 3:n=4;
As n=4,16 kinds of states 0000 ~ 1111 of 4bit are corresponding with following indication information:
√ 0000 represents that the component carrier c0 of PDSCH at this PDCCH place that this PDCCH is corresponding transmits;
√ 0001,0010,0011 represents that PDSCH corresponding to this PDCCH to transmit and control format indicated value (CFI) is 1 at a component carrier c1 specified, or 2, or 3;
√ 0100,0101,0110 represents that PDSCH corresponding to this PDCCH to transmit and control format indicated value (CFI) is 1 at a component carrier c2 specified, or 2, or 3;
√ 0111,1000,1001 represents that PDSCH corresponding to this PDCCH to transmit and control format indicated value (CFI) is 1 at a component carrier c3 specified, or 2, or 3;
√ 1010,1011,1100 represents that PDSCH corresponding to this PDCCH to transmit and control format indicated value (CFI) is 1 at a component carrier c4 specified, or 2, or 3;
√ 1101 ~ 1111 state retains.
Instructions field value PDSCH carrier wave CFI value
0000 C0 -
0001 C1 1
0010 C1 2
0011 C1 3
0100 C2 1
0101 C2 2
0110 C2 3
0111 C3 1
1000 C3 2
1001 C3 3
1010 C4 1
1011 C4 2
1100 C4 3
1101 - -
1110 - -
1111 - -
The foregoing is only embodiments of the invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.

Claims (8)

1. the index of component carrier and a transmission method for control format indicated value, is characterized in that, comprise the steps:
Base station is according to the control format indicated value of the component carrier at Physical Downlink Shared Channel place and this component carrier, and the corresponding relation of instructions field in descending control information format, generates the Downlink Control Information carrying instructions field and sends to subscriber equipment;
Subscriber equipment receives described Downlink Control Information, and according to the corresponding relation of instructions field in descending control information format, parses index and the control format indicated value of described component carrier from described Downlink Control Information;
Wherein, the corresponding relation of described instructions field refers to: the instructions field being used to indicate the index of one-component carrier wave and the control format indicated value of this component carrier is represented by n-bit, 2 nbe one-to-one relationship, wherein 2≤n≤4 between the state of kind and indication information.
2. transmission method as claimed in claim 1, is characterized in that,
The component carrier at the Physical Downlink Shared Channel place corresponding to Physical Downlink Control Channel of this descending control information format of index instruction carrying of described component carrier.
3. transmission method as claimed in claim 2, is characterized in that,
As n=2, one of four kinds of states of 2 bits and one of following indication information are one-to-one relationship:
The component carrier c0 of Physical Downlink Shared Channel at this Physical Downlink Control Channel place that this Physical Downlink Control Channel is corresponding transmits;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c1 specified, or a1, or a2.
4. transmission method as claimed in claim 2, is characterized in that,
As n=3, one of eight kinds of states of 3 bits and one of following indication information are one-to-one relationship:
The component carrier c0 of Physical Downlink Shared Channel at this Physical Downlink Control Channel place that this Physical Downlink Control Channel is corresponding transmits;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c1 specified, or a1, or a2;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c2 specified, or a1, or a2.
5. transmission method as claimed in claim 2, is characterized in that,
As n=4, one of 16 kinds of states of 4 bits and one of following indication information are one-to-one relationship:
The component carrier c0 of Physical Downlink Shared Channel at this Physical Downlink Control Channel place that this Physical Downlink Control Channel is corresponding transmits;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c1 specified, or a1, or a2;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c2 specified, or a1, or a2;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c3 specified, or a1, or a2;
Physical Downlink Shared Channel corresponding to this Physical Downlink Control Channel to transmit and the control format indicated value of this component carrier is a0 at a component carrier c4 specified, or a1, or a2.
6. the transmission method according to any one of claim 3-5, is characterized in that,
The value of described a0, a1, a2 is 1,2,3;
Described c0, c1, c2, c3, c4 are different component carriers.
7. the index of component carrier and a transmission system for control format indicated value, comprises base station and subscriber equipment, it is characterized in that:
Described base station, for according to the component carrier at Physical Downlink Shared Channel place and the control format indicated value of this component carrier, and the corresponding relation of instructions field in descending control information format, generate the Downlink Control Information carrying instructions field and send to subscriber equipment;
Described subscriber equipment, for receiving described Downlink Control Information, and according to the corresponding relation of instructions field in descending control information format, parses index and the control format indicated value of described component carrier from described Downlink Control Information;
Wherein, the corresponding relation of described instructions field refers to: the instructions field being used to indicate the index of one-component carrier wave and the control format indicated value of this component carrier is represented by n-bit, 2 nbe one-to-one relationship, wherein 2≤n≤4 between the state of kind and indication information.
8. transmission system as claimed in claim 7, is characterized in that,
The component carrier at the Physical Downlink Shared Channel place corresponding to Physical Downlink Control Channel of this descending control information format of index instruction carrying of described component carrier.
CN200910169500.7A 2009-09-17 2009-09-17 Method and system for transmitting index of component carrier and control format indicating value Expired - Fee Related CN101651996B (en)

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