CN101778449A

CN101778449A - Method for transmitting downlink control information and base station thereof

Info

Publication number: CN101778449A
Application number: CN201010003860A
Authority: CN
Inventors: 朱鹏; 郝鹏; 喻斌
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2010-01-08
Filing date: 2010-01-08
Publication date: 2010-07-14
Anticipated expiration: 2030-01-08
Also published as: WO2011082576A1; CN101778449B

Abstract

The invention provides a method for transmitting downlink control information (DCI) and a base station thereof for loading the DCI used for scheduling physical uplink shared channels (PUSCH) into a DCI format and sending the DCI to a terminal, wherein the DCI format is used for scheduling the PUSCH transmitted by a single-antenna port in a component carrier, and the payload size of the DCI format used for scheduling the PUSCH transmitted by the single-antenna port in the component carrier is identical with that of the DCI format used for scheduling the PUSCH transmitted by a multi-antenna port in the component carrier. The invention further provides a base station. The invention achieves the scheduling of the PUSCH transmitted by the single-antenna port in the component carrier.

Description

A kind of downlink control information transmission method and base station

Technical field

The present invention relates to moving communicating field, particularly relate to a kind of downlink control information transmission method and base station.

Background technology

At 3GPP LTE (The 3rd Generation Partnership Project Long TermEvolution, third generation partner program Long Term Evolution) in the system, adopt the mode of base station centralized dispatching to control user terminal (User Equipment, UE) Physical Uplink Shared Channel (PhysicalUplink Shared Channel, transmission PUSCH).

(Physical Downlink ControlChannel PDCCH) sends to object UE by Physical Downlink Control Channel by the base station to the uplink scheduling information (uplink schedulinginformation) of Physical Uplink Shared Channel PUSCH.(Downlink Control Information DCI), comprises down/uplink scheduling information (downlink oruplink scheduling information) uplink transmission power control command etc. to the control information of Physical Downlink Control Channel bearing downlink.According to different Downlink Control Information, LTE system definition multiple descending control information format (DCI format).And the uplink scheduling information of Physical Uplink Shared Channel PUSCH is carried in the descending control information format 0 (DCIformat 0).If UE detects the PDCCH with DCI format 0 form,, on the channel resource that is distributed, adopt indicated modulation coding mode and corresponding transmission power to send PUSCH according to the uplink scheduling information that wherein comprises.

The specifying information that comprises among the DCI format 0 is as follows:

-be used to distinguish the flag bit of DCI format 0 and DCI format 1A;

-frequency hopping flag bit;

-resource block assignments and frequency-hopping resource distribute;

-modulation coding mode (Modulation and Coding Scheme, MCS) and redundancy versions (Redundancy Version, RV);

-new data indication (New data indicator);

-be used for the emissive power control command (TPC command forscheduled PUSCH) of the PUSCH that dispatched;

The cyclic shift of-demodulated reference signal (Cyclic shift for DM RS);

-up indication (UL index), (being used for uplink-downlink configuration (Uplink-downlink configuration) is 0 o'clock for Time Division Duplex, TDD) system to exist only in time division duplex;

-(Downlink Assignment Index DAI), exists only in tdd systems, and being used for uplink-downlink configuration is 1～6 o'clock in descending distribution indication;

-channel quality indication request (CQI request);

In the LTE system, the Physical Uplink Shared Channel frequency division multiplexing up-link bandwidth of a plurality of user terminals in the sub-district, promptly the PUSCH of different UEs is quadrature on frequency domain.And the radio channel resource that PUSCH distributed of object UE is indicated in the base station in DCI format 0.

(Resource Block RB) is unit with Resource Block in LTE system uplink resource allocation (resource allocation).Resource Block is used to describe physical channel (Physical Channel) to Resource Unit (Resource Element, mapping RE).Defined two kinds of Resource Block: Physical Resource Block (PhysicalResource Block, PRB) and virtual resource blocks (Virtual Resource Block, VRB).

A Physical Resource Block PRB accounts for N on frequency domain _SC ^RBIndividual continuous sub-carriers (subcarrier) accounts for N on time domain _Symb ^ULIndividual continuous symbol.Wherein

N_{SC}^{RB} = 12

, subcarrier spacing is 15kHz, promptly the width of a PRB on frequency domain is 180kHz.To the regular circulation prefix (Normal cyclic prefix, NormalCP),

N_{symb}^{UL} = 7

, to extended cyclic prefix (Extended cyclic prefix, Extended CP),

N_{symb}^{UL} = 6

, promptly the length of a PRB on time domain be a time slot (slot, 0.5ms).Like this, a PRB comprises N _Symb ^UL* N _SC ^RBIndividual Resource Unit.In a time slot, PRB is n at the index of frequency domain _PRB, wherein,

n_{PRB} = 0, . . ., N_{RB}^{UL} - 1

, N _RB ^ULPRB number for up-link bandwidth correspondence; The index of RE to be (k, l), wherein,

k = 0, . . ., N_{RB}^{UL} N_{sc}^{RB} - 1

Be the frequency domain index,

l = 0, . . ., N_{symb}^{UL} - 1

For the time Domain Index, then

With the regular circulation prefix is example, and the structure of PRB as shown in Figure 1.

A virtual resource blocks VRB has structure identical with PRB and size.Defined two types VRB, distributed VRB (Virtual resource blocks of distributed type) and centralized VRB (Virtual resource blocks of localized type).During resource allocation, a pair of VRB that is positioned on two time slots of a subframe (subframe) is distributed together, and a pair of VRB has an index n _VRB

Centralized VRB maps directly on the PRB, promptly

n _PRB＝n _VRB

On two time slots in a subframe, VRB is identical to the mapping of PRB.

Distributed VRB is mapped on the PRB according to certain rule,

n _PRB＝f(n _VRB，n _s)

Wherein, n _s=0 ..., 19 is a radio frames (frame, 10ms) Nei time-gap numbers.On two time slots in a subframe, VRB is different to the mapping of PRB.

As shown in Figure 2, for keeping the single-carrier property of upward signal, in the LTE system, PUSCH adopts the continuous resource method of salary distribution, and promptly the PUSCH of a UE occupies one section continuous bandwidth on frequency domain.This section bandwidth is the part of whole up-link bandwidth, comprises one group of continuous PRB, and the number of PRB is M _RB ^PUSCH, the continuous number of sub carrier wave that comprises is

M_{sc}^{PUSCH} = M_{RB}^{PUSCH} \cdot N_{sc}^{RB}

The base station in DCI format 0, provide a resource indicatrix (Resource Indication Value, RIV).RIV indicates the original position RB of one group of continuous VRB by tree type method for expressing _STARTAnd length L _CRBs, wherein, RB _STARTFor this organizes the index of initial VRB among the continuous VRB, L _CRBsFor this organizes the VRB number that continuous VRB comprises.The resource indicatrix is

Bit, N _RB ^ULNumber of resource blocks for up-link bandwidth correspondence.

In the LTE system, Physical Uplink Shared Channel adopts the single antenna port transmission.

LTE-Advanced system (being called for short the LTE-A system) is the evolution system of future generation of LTE system.As shown in Figure 3, the LTE-A system adopts carrier aggregation (carrier aggregation) technological expansion transmission bandwidth, and the carrier wave of each polymerization is called one " component carrier " (component carrier).A plurality of component carriers can be continuous, also can be discontinuous, can be positioned at same frequency range (frequencyband), also can be positioned at different frequency range.

In the LTE-A system, the Physical Uplink Shared Channel of user terminal in the one-component carrier wave can adopt continuous or discrete resource distribution mode.So-called continuous resource distributes, and promptly is similar to the LTE system, and the Physical Uplink Shared Channel of user terminal occupies one section continuous bandwidth in the one-component carrier wave; So-called discontinuous resource allocation is meant that the Physical Uplink Shared Channel of user terminal occupies the multistage bandwidth in the one-component carrier wave, and these bandwidth are discontinuous, and every section bandwidth comprises one group of continuous PRB, is called cluster (cluster), as shown in Figure 5.

The discontinuous resource allocation of LTE-A system uplink can be with reference to the resource allocation of LTE system descending.The resource allocation of LTE system descending has 3 kinds of modes, and type 0, type 1 and type 2, and wherein (Resource Block Group RBG) is the unit allocation of channel resources may to type 0 with the Resource Block group.RBG is defined as one group of continuous PRB, and the big or small P of Resource Block group (RBG size, the i.e. resource block number that comprises of Resource Block group) is the function of system bandwidth.As shown in table 3, the LTE system bandwidth can be configured to 1.4MHz, 3MHz, and 5MHz, 10MHz, 15MHz, 20MHz, Dui Ying PRB number is 6,15,25,50,75,100 respectively.(PRB with correspondence counts N according to different system bandwidths _RB ^DLRepresent), the size of Resource Block group is also different, i.e. and the granularity of resource allocation (granularity) difference sees Table 4.

Table 3 LTE system bandwidth

??Channel?bandwidth?BW _Channel[MHz] (system bandwidth)	??1.??4	??3	??5	??1??0	??1??5	??20
??Channel?bandwidth?BW _Channel[MHz] (system bandwidth)	??1.??4	??3	??5	??1??0	??1??5	??20	??Transmission??bandwidth??configuration??N _RB(transmission bandwidth configuration)	??6	??1??5	??2??5	??5??0	??7??5	??10??0

The size of table 4 Resource Block group

System Bandwidth (system bandwidth) N _RB ^DL(#PRB)	RBG Size (size of Resource Block group) P (#PRB)
System Bandwidth (system bandwidth) N _RB ^DL(#PRB)	RBG Size (size of Resource Block group) P (#PRB)	??≤10	??1
??11-26	??2	??≤10	??1
??11-26	??2	??27-63	??3
??64-110	??4	??27-63	??3

Then, the number of Resource Block group is

N _RBGThe index of individual Resource Block group is 0 according to the order of frequency increments ..., N _RBG-1.Wherein, if

N_{RB}^{DL} \mod P = 0

, then the size of each Resource Block group is P; If

N_{RB}^{DL} \mod P > 0

, then before

The size of individual Resource Block group is P, and the size of last 1 Resource Block group is

Resource distribution mode type 0 uses bitmap (bitmap) to indicate the Resource Block group of distribution, from index 0 to N _RBGEach bit in-1 the corresponding successively bitmap of each Resource Block group from the highest order to the lowest order, bit are that the corresponding Resource Block set of dispense of 1 expression is given target terminal user, are the unallocated target terminal user of giving of 0 expression.

Resource distribution mode type 1 is on the basis of type 0, with the Resource Block is unit, and (RBG subset is called the Resource Block subclass again in Resource Block group subclass, resource blocks subset) Resource Block that uses the bitmap indication to distribute in has identical signaling consumption with type 0 mode.

Therefore, the LTE-A system needs a kind of new descending control information format of definition badly, adopts Physical Uplink Shared Channel discontinuous resource allocation, the single antenna port transmission with scheduling.

In addition, in the LTE-A system, Physical Uplink Shared Channel can adopt the single antenna port transmission, also can adopt many antenna port transmission.The transmitting terminal base band signal process schematic diagram of Fig. 4 Physical Uplink Shared Channel of many antenna port transmission for existing LTE-A adopts.During the transmission of many antenna ports, LTE-A support based on one or two code word (Codeword, spatial reuse CW), the corresponding transmission block of each code word (Transport Block, TB).

When the spatial reuse transmission adopted based on two code words, from the transmission block to the code word, be mapped with dual mode, promptly TB1 is mapped to CW0, and TB2 is mapped to CW1 and TB1 is mapped to CW1, and TB2 is mapped to CW0, and the latter is called the intersection mapping from the transmission block to the code word.

LTE-A adopts based on the code book linear predictive coding technology (precoding) of (codebook is called code book again), and promptly transmitting terminal utilizes channel condition information (Channel Status Information CSI), carries out preliminary treatment (precoding) to transmitting.A kind of approach that transmitting terminal obtains CSI is the feedback by receiving terminal.In order to reduce feedback overhead, the general mode that adopts is that to preserve identical code book at receiving terminal with transmitting terminal be the pre-coding matrix collection.Receiving terminal is according to current channel conditions, in code book, select suitable pre-coding matrix, and with its pre-coding matrix index value (PrecodingMatrix Index in code book, PMI) feed back to transmitting terminal, transmitting terminal finds pre-coding matrix according to the pre-coding matrix index value of feedback, carries out precoding to sending signal.

In the LTE-A up link, the base station is according to current channel conditions, in code book, select suitable pre-coding matrix, and with its pre-coding matrix index value PMI in code book together with some other uplink scheduling information, be carried in certain descending control information format, send to the user terminal of being dispatched through Physical Downlink Control Channel.User terminal finds pre-coding matrix according to the pre-coding matrix index value in the detected descending control information format, carries out precoding to sending signal.

In the LTE-A system, when Physical Uplink Shared Channel adopted many antenna ports to transmit, the demodulated reference signal of each layer data (Demodulation Reference Signal, DM RS) equally carried out precoding with each layer data.And the demodulated reference signal of different layers data, comprise the demodulated reference signal of single user being imported more the multi-layer data of the same user terminal of multi-output system (SU-MIMO), import the demodulated reference signal of the multi-layer data of a plurality of user terminals of multi-output system (MU-MIMO) with the multi-user more, by using different demodulated reference signal cyclic shift (Cyclic Shift, CS) and/or quadrature mask (Orthogonal Cover Code, OCC) orthogonalization.Wherein, quadrature mask OCC is [+1 ,+1] and [+1 ,-1], acts on the demodulated reference signal on interior two time slots of a subframe.

Therefore, must increase at least a new descending control information format in the LTE-A system, be used to dispatch the Physical Uplink Shared Channel of many antenna port transmission.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of downlink control information transmission method base station, and this Downlink Control Information is used to dispatch in the LTE-A system one-component carrier wave, the Physical Uplink Shared Channel of single antenna port or the transmission of many antenna ports.

In order to address the above problem, the invention provides a kind of downlink control information transmission method, the Downlink Control Information that the base station will be used for dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal, wherein, described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, and the described descending control information format that is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission in the one-component carrier wave is identical with the payload of the descending control information format that is used to dispatch the Physical Uplink Shared Channel that many antenna ports transmit in the one-component carrier wave.

Further, said method also can have following characteristics,

If the information bit of the descending control information format of the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission and the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission is inequality, mend filling bit at the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission and/or the described descending control information format that is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two; Described payload comprises the information bit and the filling bit number of descending control information format.

Further, said method also can have following characteristics,

If the information bit of the descending control information format of the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission or the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, equal any one value in one group of predefined value, at the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission and the descending control information format that is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission mend filling bit, be not equal to any one value in described one group of predefined value up to the two payload; Described payload comprises the information bit and the filling bit number of descending control information format.

Further, said method also can have following characteristics,

(a1) if the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission less than the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two;

(a2) if the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching many antenna ports transmission equals any one value of one group of predefined value, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, be not equal to any one value of described one group of predefined value up to the payload of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching many antenna ports transmission;

(a3) if the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission less than the payload of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, identical payload is arranged up to the two;

Perhaps,

(b1) if the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission less than the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, identical payload is arranged up to the two;

(b2) if the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission equals any one value of one group of predefined value, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, be not equal to any one value of described one group of predefined value up to the payload of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission;

(b3) if the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission less than the payload of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two.

Further, said method also can have following characteristics,

Described filling bit is 0 bit.

Further, said method also can have following characteristics,

The descending control information format that is used for dispatching the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave comprises following information:

Resource allocation information, modulation coding information, reference signal information, power control information and channel quality indication request information, perhaps, comprise resource allocation information, modulation coding information, reference signal information, power control information, channel quality indication request information and tdd systems specific information.

Further, said method also can have following characteristics,

The described descending control information format that is used for dispatching the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave also comprises one of following at least information:

The descending control information format flag bit is used to distinguish the descending control information format of the Physical Uplink Shared Channel that is used to dispatch single antenna port transmission and the transmission of many antenna ports;

The frequency hopping flag bit.

Further, said method also can have following characteristics,

The descending control information format that is used for dispatching the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave comprises following information:

Resource allocation information, modulation coding information, reference signal information, power control information, precoding information and channel quality indication request information, perhaps, comprise resource allocation information, modulation coding information, reference signal information, power control information, precoding information, channel quality indication request information and tdd systems specific information.

Further, said method also can have following characteristics,

The described descending control information format that is used for dispatching the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave also comprises one of following at least information:

The quadrature mask index of demodulated reference signal is used to the quadrature mask of indicating demodulated reference signal to use;

List/pair transmission block enabler flags position is used to indicate the single transport piece to enable or two transmission block enables;

Whether the layer flag bit that interweaves is used for marker and interweaves and enable.

Further, said method also can have following characteristics,

The cyclic redundancy check (CRC) of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch single antenna port in the one-component carrier wave or the transmission of many antenna ports by descending control information format adds the descending control information format that mask is distinguished the Physical Uplink Shared Channel that is used to dispatch single antenna port transmission and the transmission of many antenna ports.

The present invention also provides a kind of downlink control information transmission method, the Downlink Control Information that the base station will be used for dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal, and described descending control information format is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission and the transmission of many antenna ports in the one-component carrier wave.

Further, said method also can have following characteristics,

If the information bit of described descending control information format equals any one value in one group of predefined value, in described descending control information format, mend filling bit, be not equal to any one value in described one group of predefined value up to the payload of described descending control information format, described payload comprises the information bit and the filling bit number of descending control information format.

Further, said method also can have following characteristics,

Described filling bit is 0 bit.

Further, said method also can have following characteristics,

When described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, comprise following information:

Further, said method also can have following characteristics,

When described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, also comprise the frequency hopping flag bit in this descending control information format.

Further, said method also can have following characteristics,

When described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, in described descending control information format, remove the information bit that described information takies,, put 0 if any the remaining information bit.

Further, said method also can have following characteristics,

When described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave, comprise following information:

Further, said method also can have following characteristics,

When described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave, also comprise one of following at least information:

Further, said method also can have following characteristics,

When described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave, in described descending control information format, remove the information bit that described information takies,, put 0 if any the remaining information bit.

Further, said method also can have following characteristics,

Also comprise single antenna/many antenna ports transmission mode configuration flag bit in the described descending control information format, be used to indicate the Physical Uplink Shared Channel of described descending control information format scheduling to be the single antenna port transmission or to be many antenna port transmission; Perhaps, the cyclic redundancy check (CRC) of described descending control information format by descending control information format adds mask to indicate the Physical Uplink Shared Channel of described descending control information format scheduling is the single antenna port transmission or be many antenna ports transmission.

The present invention also provides a kind of base station, described base station, the Downlink Control Information that will be used for dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal, wherein, described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, and the described descending control information format that is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission in the one-component carrier wave is identical with the payload of the descending control information format that is used to dispatch the Physical Uplink Shared Channel that many antenna ports transmit in the one-component carrier wave.

Further, above-mentioned base station also can have following characteristics,

Described base station, also be used for when the information bit of the descending control information format of the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission and the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission is inequality, mend filling bit at the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission and/or the described descending control information format that is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two; Described payload comprises the information bit and the filling bit number of descending control information format.

Further, above-mentioned base station also can have following characteristics,

Described base station, be used for describedly to be used to dispatching the information bit of the descending control information format of the information bit of descending control information format of Physical Uplink Shared Channel of single antenna port transmission or the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, when equaling any one value in one group of predefined value, at the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission and the descending control information format that is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission mend filling bit, be not equal to any one value in described one group of predefined value up to the two payload; Described payload comprises the information bit and the filling bit number of descending control information format.

Further, above-mentioned base station also can have following characteristics,

Described base station, be used for when the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission during less than the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two;

Also be used for when the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission equals any one value of one group of predefined value, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, be not equal to any one value of described one group of predefined value up to the payload of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching many antenna ports transmission;

Also be used for when the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission during less than the payload of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, identical payload is arranged up to the two;

Perhaps,

Described base station is used for when the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission during less than the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, identical payload is arranged up to the two;

Also be used for when the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission equals any one value of one group of predefined value, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, be not equal to any one value of described one group of predefined value up to the payload of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission;

Also be used for when the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission during less than the payload of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two.

Further, above-mentioned base station also can have following characteristics,

Described filling bit is 0 bit.

Further, above-mentioned base station also can have following characteristics,

Described base station, carry following information at the descending control information format of the Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission in the one-component carrier wave:

Further, above-mentioned base station also can have following characteristics,

Described base station, also carry one of following at least information at the descending control information format of the Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission in the one-component carrier wave:

The frequency hopping flag bit.

Further, above-mentioned base station also can have following characteristics,

Described base station, carry following information at the descending control information format of the Physical Uplink Shared Channel that is used for dispatching the many antenna ports transmission in the one-component carrier wave:

Further, above-mentioned base station also can have following characteristics,

Described base station, also carry one of following at least information at the descending control information format of the Physical Uplink Shared Channel that is used for dispatching the many antenna ports transmission in the one-component carrier wave:

Further, above-mentioned base station also can have following characteristics,

Described base station is used for cyclic redundancy check (CRC) by descending control information format and adds the descending control information format that mask is distinguished the Physical Uplink Shared Channel that is used to dispatch single antenna port transmission and the transmission of many antenna ports.

The present invention also provides a kind of base station, described base station, the Downlink Control Information that is used for being used to dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal, and described descending control information format is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission and the transmission of many antenna ports in the one-component carrier wave.

Further, above-mentioned base station also can have following characteristics,

Described base station, be used for when the information bit of described descending control information format equals any one value of one group of predefined value, in described descending control information format, mend filling bit, be not equal to any one value in described one group of predefined value up to the payload of described descending control information format, described payload comprises the information bit and the filling bit number of descending control information format.

Further, above-mentioned base station also can have following characteristics,

Described filling bit is 0 bit.

Further, above-mentioned base station also can have following characteristics,

Described base station is used for carrying following information in described descending control information format when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave:

Further, above-mentioned base station also can have following characteristics,

Described base station is used for when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, also carries the frequency hopping flag bit in described descending control information format.

Further, above-mentioned base station also can have following characteristics,

Described base station, be used for when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, in described descending control information format, removing the information bit that described information takies, if any the remaining information bit, put 0.

Further, above-mentioned base station also can have following characteristics,

Described base station is used for carrying following information in described descending control information format when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave:

Further, above-mentioned base station also can have following characteristics,

Described base station is used for also carrying one of following at least information in described descending control information format when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave:

Further, above-mentioned base station also can have following characteristics,

Described base station, be used for carrying single antenna/many antenna ports transmission mode configuration flag bit, be used to indicate the Physical Uplink Shared Channel of described descending control information format scheduling to be the single antenna port transmission or to be many antenna port transmission at described descending control information format; Perhaps, being used for cyclic redundancy check (CRC) by descending control information format adds mask to indicate the Physical Uplink Shared Channel of described descending control information format scheduling is the single antenna port transmission or be many antenna ports transmission.

A kind of descending control information format that the present invention proposes is used to dispatch in the LTE-A system one-component carrier wave, the Physical Uplink Shared Channel of single antenna port and/or the transmission of many antenna ports.

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 is the Physical Resource Block structural representation (is example with the regular circulation prefix) of LTE system;

Fig. 2 is the Physical Uplink Shared Channel structural representation (is example with the regular circulation prefix) of LTE system;

Fig. 3 is a LTE-A system carrier aggregation schematic diagram;

Fig. 4 is the transmitting terminal base band signal process schematic diagram that the LTE-A system adopts the Physical Uplink Shared Channel of many antenna port transmission;

Fig. 5 is the discontinuous resource allocation schematic diagram of PUSCH in the LTE-A system one-component carrier wave.

Embodiment

Describe the present invention in detail below in conjunction with embodiment and accompanying drawing.

The invention provides a kind of downlink control information transmission method, the Downlink Control Information that the base station will be used for dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal.Descending control information format specifies sees below.

Method one:

Define a kind of descending control information format (DCI format), be used to dispatch in the LTE-A system one-component carrier wave, the Physical Uplink Shared Channel of single antenna port transmission, wherein:

Describedly be used to dispatch in the LTE-A system one-component carrier wave, the payload (payload size) of the descending control information format of the Physical Uplink Shared Channel of single antenna port transmission be used to dispatch in the LTE-A system one-component carrier wave, the payload of the descending control information format of the Physical Uplink Shared Channel of many antenna ports transmission is identical.

Wherein, if the information bit (the number of information bits) of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission is inequality with the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, mend filling bit (padding bits) at the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission and/or the described descending control information format that is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two;

If the information bit of the descending control information format of the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission or the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, equal any one value in one group of predefined value, mend filling bit at the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission and the described descending control information format that is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission, be not equal to any one value in described one group of predefined value up to the two payload.

Specifically have,

Mode one:

If the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission is less than the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two.

If the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching many antenna ports transmission equals any one value of one group of predefined value, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, be not equal to any one value of described one group of predefined value up to the payload of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching many antenna ports transmission.

If the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission is less than the payload of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission (filling bit that comprises the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission), mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, identical payload is arranged up to the two;

Mode two:

If the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission is less than the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch many antenna ports transmission, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, identical payload is arranged up to the two.

If the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission equals any one value of one group of predefined value, mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission, be not equal to any one value of described one group of predefined value up to the payload of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission.

If the information bit of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching many antenna ports transmission is less than the payload of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission (filling bit that comprises the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission), mend filling bit at the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission, identical payload is arranged up to the two.

Described filling bit can be 0 bit.

In addition, comprise three steps in said method one and the method two respectively, each mode can not be changed at the execution sequence of three steps.

The payload of described descending control information format comprises the information bit and the filling bit number of descending control information format.

Describedly be used to dispatch in the LTE-A system one-component carrier wave, the uplink scheduling information kind of the descending control information format carrying of the Physical Uplink Shared Channel of single antenna port transmission includes but not limited to:

◆ resource allocation information;

◆ modulation coding information;

◆ reference signal information;

◆ power control information;

◆ the tdd systems specific information;

◆ channel quality indication request information.

Wherein,

Modulation coding information comprises:

-modulation coding mode (MCS) and redundancy versions (RV), 5 bits;

-new data indication (New data indicator), 1 bit;

Reference signal information comprises:

The cyclic shift of-demodulated reference signal (Cyclic shift for DM RS), 3 bits;

Power control information comprises:

-be used for the emissive power control command (TPCcommand for scheduled PUSCH) of the Physical Uplink Shared Channel dispatched, 2 bits;

The tdd systems specific information comprises:

-up indication (UL index) exists only in tdd systems, and being used for uplink-downlink configuration is 0 o'clock, 2 bits;

-(Downlink Assignment Index DAI), exists only in tdd systems, and being used for uplink-downlink configuration is 1～6 o'clock, 2 bits in descending distribution indication;

Channel quality indication request information comprises:

-channel quality indication request (CQI request);

1 bit, be used for indicating user terminal by the Physical Uplink Shared Channel ground aperiodic feedback amount relevant with channel quality, comprise, channel quality indication (Channel Quality Indication, CQI), and pre-coding matrix index (Precoding Matrix Indicator, PMI), the order index (RankIndication, RI);

In the described descending control information format, also comprise:

-descending control information format flag bit

1 bit, be used to distinguish the descending control information format of the Physical Uplink Shared Channel that is used to dispatch single antenna port transmission and the transmission of many antenna ports, value is that the descending control information format of this descending control information format for the Physical Uplink Shared Channel of scheduling single antenna port transmission represented in 0 (or 1), and value is that the descending control information format of this descending control information format for the Physical Uplink Shared Channel of the many antenna port transmission of scheduling represented in 1 (or 0).

Or described two kinds of descending control information formats are distinguished by the cyclic redundancy check (CRC) of descending control information format (Cyclical Redundancy Check is called for short CRC) is added mask (MASK).

-frequency hopping flag bit (Hopping flag); 1 bit;

Described be used to dispatch in the LTE-A system one-component carrier wave, the descending control information format of the Physical Uplink Shared Channel of single antenna port transmission has identical payload, be used to dispatch in the LTE-A system one-component carrier wave, the descending control information format of the Physical Uplink Shared Channel of many antenna port transmission comprises following information at least:

◆ resource allocation information;

◆ modulation coding information;

◆ reference signal information;

◆ power control information;

◆ precoding information;

◆ the tdd systems specific information;

◆ channel quality indication request information.

Wherein, modulation coding information comprises:

-to transmission block 1 (transport block 1)

■ modulation coding mode (MCS) and redundancy versions (RV) 5 bits;

■ new data indication (New data indicator) 1 bit;

-to transmission block 2 (transport block 2)

■ modulation coding mode (MCS) and redundancy versions (RV) 5 bits;

■ new data indication (New data indicator) 1 bit;

-transmission block is to code word intersection mapping flag bit (Transport block to codeword swapflag), 1 bit;

Reference signal information comprises:

The cyclic shift of-demodulated reference signal (Cyclic shift for DM RS) 3 bits;

Power control information comprises:

Precoding information (precoding information) comprising:

-precoding information

According to the antenna port number of user terminal, the bit number of precoding information is as shown in table 6;

The bit number of table 6 precoding information

Number of antenna ports at UE (the antenna port number of user terminal)	Number of bits for precoding information (bit number of precoding information)
		??2	??3
??4	??6	??2	??3

The tdd systems specific information comprises:

Channel quality indication request information comprises:

-channel quality indication request (CQI request);

1 bit is used for indicating user terminal by the Physical Uplink Shared Channel ground aperiodic feedback amount relevant with channel quality, comprises channel quality indicator (CQI), pre-coding matrix index PMI, order index RI;

The described descending control information format that is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission also comprises:

-descending control information format flag bit

1 bit is used to distinguish the descending control information format of the Physical Uplink Shared Channel that is used to dispatch single antenna port transmission and the transmission of many antenna ports.

The quadrature mask index of-demodulated reference signal

1 bit is used to the quadrature mask of indicating demodulated reference signal to use.

-list/pair transmission block enabler flags position, or claim list/dicode word enabler flags position

1 bit, value are that 0 (or 1) expression single transport piece enables, and value is that expression two transmission blocks in 1 (or 0) enable.

When the single transport piece enables, enable to code word intersection mapping flag bit indication transmission block 1 or transmission block 2 by transmission block.

-layer the flag bit (Layer shifting flag, or claim the layer enable bit that interweaves) that interweaves

Whether 1 bit is used for marker and interweaves and enable.

Described descending control information format sends to target terminal user by Physical Downlink Control Channel by the base station.

The sequencing of above-mentioned each information in descending control information format is not and be limited to this kind order shown in the foregoing description.Can set the particular location of above-mentioned each information in described descending control information format according to system's needs.

Described to be used for dispatching the single antenna port transmission different with the resource allocation information of the descending control information format of the Physical Uplink Shared Channel of many antenna ports transmission, the information bit difference that resource allocation information takies.

Method two:

Define a kind of descending control information format (DCI format), be used to dispatch in the LTE-A system one-component carrier wave, the Physical Uplink Shared Channel of single antenna port transmission and the transmission of many antenna ports.

If the Physical Uplink Shared Channel of described descending control information format scheduling is the single antenna port transmission, the uplink scheduling information kind of then described descending control information format carrying comprises:

◆ resource allocation information;

◆ modulation coding information;

◆ reference signal information;

◆ power control information;

◆ the tdd systems specific information;

◆ channel quality indication request information.Wherein,

Modulation coding information comprises:

-modulation coding mode (MCS) and redundancy versions (RV) 5 bits;

-new data indication (New data indicator) 1 bit;

Reference signal information comprises:

Power control information comprises:

The tdd systems specific information comprises:

Channel quality indication request information comprises:

-channel quality indication request (CQI request);

1 bit is used for indicating user terminal by the Physical Uplink Shared Channel ground aperiodic feedback amount relevant with channel quality;

If the Physical Uplink Shared Channel of described descending control information format scheduling is the single antenna port transmission, then described descending control information format also comprises:

-frequency hopping flag bit (Hopping flag), 1 bit;

If any the remaining information bit, all be changed to 0.

If the Physical Uplink Shared Channel of described descending control information format scheduling is many antenna port transmission, the uplink scheduling information kind of then described descending control information format carrying comprises:

◆ resource allocation information;

◆ modulation coding information;

◆ reference signal information;

◆ power control information;

◆ precoding information;

◆ the tdd systems specific information;

◆ channel quality indication request information.

Wherein, modulation coding information comprises:

-to transmission block 1 (transport block 1)

■ modulation coding mode (MCS) and redundancy versions (RV) 5 bits;

■ new data indication (New data indicator) 1 bit;

-to transmission block 2 (transport block 2)

■ modulation coding mode (MCS) and redundancy versions (RV) 5 bits;

■ new data indication (New data indicator) 1 bit;

Reference signal information comprises:

Power control information comprises:

Precoding information (precoding information) comprising:

-precoding information

According to the antenna port number of user terminal, the bit number of precoding information is as shown in table 8;

The bit number of table 8 precoding information

User terminal is according to its antenna port number, and code word number that enables (number of transport blocks that promptly enables) and precoding information are determined the code book codebook index that uses, number of plies υ of spatial reuse (order) and pre-coding matrix.

The tdd systems specific information comprises:

Channel quality indication request information comprises:

-channel quality indication request (CQI request);

If described descending control information format is used to dispatch the Physical Uplink Shared Channel of many antenna port transmission, then described descending control information format also comprises:

The quadrature mask index of-demodulated reference signal

Whether-layer flag bit (Layer shifting flag, or claim the layer enable bit that interweaves) 1 bit that interweaves is used for marker and interweaves and enable;

If any the remaining information bit, all be changed to 0.

In the described descending control information format, also comprise:

-single antenna/many antenna ports transmission mode configuration flag bit

1 bit, be used to indicate the Physical Uplink Shared Channel of described descending control information format scheduling to be the single antenna port transmission or to be many antenna port transmission, value is that 0 (or 1) represents that the Physical Uplink Shared Channel of this descending control information format scheduling is the single antenna port transmission, and value is that 1 (or 0) represents that the Physical Uplink Shared Channel of this descending control information format scheduling is many antenna port transmission.

Or described descending control information format to indicate the Physical Uplink Shared Channel of described descending control information format scheduling be the single antenna port transmission or be many antenna ports transmission by the cyclic redundancy check (CRC) of descending control information format (Cyclical Redundancy Check is called for short CRC) being added mask (MASK).

If the information bit of described descending control information format equals any one value in one group of predefined value, in described descending control information format, mend filling bit, be not equal to any one value in described one group of predefined value up to the payload of described descending control information format.

Described filling bit is 0 bit.

Described descending control information format sends to target terminal user by Physical Downlink Control Channel by the base station.Carrying is used to dispatch the Downlink Control Information of Physical Uplink Shared Channel in the described descending control information format.

More than the position changeable of all information in described descending control information format.

Described descending control information format is when the Physical Uplink Shared Channel of the Physical Uplink Shared Channel of dispatching the single antenna port transmission and the many antenna ports transmission of scheduling, resource allocation information difference in the described descending control information format, the information bit difference that resource allocation information takies.

◆ embodiment one

The LTE-A system is operated under the mode of frequency division duplexing, and the up-link bandwidth of one-component carrier wave is counted N with corresponding PRB _RB ^ULRepresent, the base station is used to dispatch in the one-component carrier wave by described, the descending control information format of the Physical Uplink Shared Channel of single antenna port transmission is dispatched certain user terminal on this component carrier, sends Physical Uplink Shared Channel with single antenna port transmission pattern.Then, described descending control information format is as shown in table 6:

Table 6

Wherein, the resource allocation information of descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission comprises:

-resource allocation head (Resource allocation header)

1 bit is used to distinguish resource distribution mode type 0 and type 1, and type 0 usefulness 0 represents that type1 represents with 1.

If the up-link bandwidth N of described component carrier _RB ^ULSmaller or equal to 10 Physical Resource Block, then there is not the resource allocation head, acquiescence adopts resource distribution mode type 0.

Described resource distribution mode type 0 and type 1 are respectively LTE system descending resource distribution mode type 0 and type 1.

-resource block assignments (Resource block assignment)

■ is to resource distribution mode type 0

Bit is used to indicate the Resource Block group of distribution.

■ is to resource distribution mode type 1

Bit as the distinctive head of type 1 mode, is used to indicate selected Resource Block subclass;

Whether 1 bit is used for indicating resource allocation scope (the resource allocation span) to be shifted (shift) in selected Resource Block subclass, and value is that 1 expression displacement triggers, and value is that 0 expression displacement does not trigger;

Bit is used to indicate the Resource Block of distribution.

Wherein, Resource Block group size P (RBG size, the i.e. resource block number that comprises of Resource Block group) depends on the up-link bandwidth N of described component carrier _RB ^UL, as shown in table 5.

Table 5

System Bandwidth of the Component Carrier (system bandwidth of component carrier) N _RB ^UL(#PRB)	RBG Size (size of Resource Block group) P (#PRB)
	RBG Size (size of Resource Block group) P (#PRB)	??≤10	??1
??11-26	??2	??≤10	??1
??11-26	??2	??27-63	??3
??64-110	??4	??27-63	??3

The payload of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission be used to dispatch in this component carrier, the payload of the descending control information format of the Physical Uplink Shared Channel of many antenna port transmission is identical, promptly

Wherein, the resource allocation information of descending control information format that is used for dispatching the Physical Uplink Shared Channel of many antenna ports transmission comprises:

-resource block assignments

Bit is used to indicate the Resource Block of distribution.

The Physical Uplink Shared Channel that is described many antenna port transmission adopts continuous resource to distribute.Described user terminal has 4 antenna ports (antenna ports), and the precoding information of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching many antenna ports transmission is 6 bits.

◆ embodiment two

The LTE-A system is operated under the mode of frequency division duplexing, and the up-link bandwidth of one-component carrier wave is counted N with corresponding PRB _RB ^ULRepresent, the base station is used to dispatch in the one-component carrier wave by described, the descending control information format of the Physical Uplink Shared Channel of single antenna port transmission is dispatched certain user terminal on this component carrier, sends Physical Uplink Shared Channel with single antenna port transmission pattern.Then, described descending control information format is as shown in table 7:

Table 7

Wherein, the resource allocation information of descending control information format that is used for dispatching the Physical Uplink Shared Channel of single antenna port transmission only comprises:

-resource block assignments (Resource block assignment)

Bit is used to indicate the Resource Block group of distribution.

Resource Block group size P depends on the up-link bandwidth N of described component carrier _RB ^UL, as shown in table 5.

-resource block assignments

Bit is used to indicate the Resource Block of distribution.

The Physical Uplink Shared Channel that is described many antenna port transmission adopts continuous resource to distribute.

Described user terminal has 2 antenna ports, and the precoding information of the descending control information format of the described Physical Uplink Shared Channel that is used for dispatching many antenna ports transmission is 3 bits.

◆ embodiment three

The LTE-A system is operated under the mode of frequency division duplexing, and the up-link bandwidth of one-component carrier wave is counted N with corresponding PRB _RB ^ULRepresent, the base station is used to dispatch in the one-component carrier wave by described, the descending control information format of the Physical Uplink Shared Channel of single antenna port transmission is dispatched certain user terminal on this component carrier, sends Physical Uplink Shared Channel with single antenna port transmission pattern.Then, described descending control information format is as shown in table 8:

Table 8

Wherein, Resource Block group size P depends on the up-link bandwidth N of described component carrier _RB ^UL, as shown in table 5.

The payload of described descending control information format be used to dispatch in this component carrier, the payload of the descending control information format of the Physical Uplink Shared Channel of many antenna ports transmission is identical, promptly

◆ embodiment four

The LTE-A system is operated under the mode of frequency division duplexing, and the up-link bandwidth of one-component carrier wave is counted N with corresponding PRB _RB ^ULRepresent, the base station is used to dispatch in the one-component carrier wave by described, the descending control information format of the Physical Uplink Shared Channel of single antenna port transmission is dispatched certain user terminal on this component carrier, sends Physical Uplink Shared Channel with single antenna port transmission pattern.Then, described descending control information format is as shown in table 9:

Table 9

It is single to be used for scheduling

Bit number

It is many to be used for scheduling

Bit number

Described two kinds of descending control information formats add mask MASK by the cyclic redundancy check (CRC) to descending control information format and distinguish.

◆ embodiment five

The LTE-A system is operated under the TDD mode, and the system bandwidth of a upstream components carrier wave is counted N with corresponding PRB _RB ^ULRepresent, the base station is used to dispatch in the one-component carrier wave by described, the descending control information format of the Physical Uplink Shared Channel of single antenna port transmission is dispatched certain user terminal on this component carrier, sends Physical Uplink Shared Channel with single antenna port transmission pattern.Then, described descending control information format is as shown in table 10:

Table 10

Wherein, Resource Block group size P depends on the system bandwidth N of described upstream components carrier wave _RB ^UL, as shown in table 5.

The payload of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch the single antenna port transmission be used to dispatch in this upstream components carrier wave, the payload of the descending control information format of the Physical Uplink Shared Channel of many antenna port transmission is identical, promptly

◆ embodiment six

The LTE-A system is operated under the mode of frequency division duplexing, and the up-link bandwidth of one-component carrier wave is counted N with corresponding PRB _RB ^ULRepresent, the base station is used to dispatch in the one-component carrier wave by described, the descending control information format of the Physical Uplink Shared Channel of single antenna port transmission and the transmission of many antenna ports, dispatch certain user terminal on this component carrier, send Physical Uplink Shared Channel with single antenna port transmission pattern or many antenna ports transmission mode.Then, described descending control information format is as shown in table 11:

Table 11

		Number quadrature mask index
		Number quadrature mask index				Precoding information	??6
		The emissive power control command that is used for the Physical Uplink Shared Channel dispatched	??2			Precoding information	??6
			??2			The channel quality indication request	??1
		The layer flag bit that interweaves				The channel quality indication request	??1
		The layer flag bit that interweaves		Remaining bits (putting 0)	??x	Remaining bits (putting 0)	??y
Filling bit (0 bit)	??a		??a	Remaining bits (putting 0)	??x	Remaining bits (putting 0)	??y

The payload of described descending control information format is the z bit, then

x＝z-(14+|N _RB ^UL/P|)-a

Wherein, when being used to dispatch the Physical Uplink Shared Channel of single antenna port transmission, the resource allocation information in the descending control information format comprises:

-resource allocation head (Resource allocation header)

1 bit;

-resource block assignments

Bit.

The Physical Uplink Shared Channel that is described single antenna port transmission can adopt discontinuous resource allocation.

When being used to dispatch the Physical Uplink Shared Channel of many antenna port transmission, the resource allocation information in the descending control information format comprises:

-resource block assignments

Bit is used to indicate the Resource Block of distribution.

The above is embodiments of the 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 the claim scope of the present invention.

Claims

1. downlink control information transmission method, it is characterized in that, the Downlink Control Information that the base station will be used for dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal, wherein, described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, and the described descending control information format that is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission in the one-component carrier wave is identical with the payload of the descending control information format that is used to dispatch the Physical Uplink Shared Channel that many antenna ports transmit in the one-component carrier wave.

2. the method for claim 1 is characterized in that,

3. the method for claim 1 is characterized in that,

4. the method for claim 1 is characterized in that, described method also comprises:

Perhaps,

5. as claim 2 or 3 or 4 described methods, it is characterized in that,

Described filling bit is 0 bit.

6. the method for claim 1 is characterized in that, the descending control information format that is used for dispatching the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave comprises following information:

7. method as claimed in claim 6 is characterized in that, the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave also comprises one of following at least information:

The frequency hopping flag bit.

8. the method for claim 1 is characterized in that, the descending control information format that is used for dispatching the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave comprises following information:

9. method as claimed in claim 8 is characterized in that, the described descending control information format that is used for dispatching the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave also comprises one of following at least information:

10. as the arbitrary described method of claim 6 to 9, it is characterized in that the cyclic redundancy check (CRC) of the descending control information format of the described Physical Uplink Shared Channel that is used to dispatch single antenna port in the one-component carrier wave or the transmission of many antenna ports by descending control information format adds the descending control information format that mask is distinguished the Physical Uplink Shared Channel that is used to dispatch single antenna port transmission and the transmission of many antenna ports.

11. downlink control information transmission method, it is characterized in that, the Downlink Control Information that the base station will be used for dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal, and described descending control information format is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission and the transmission of many antenna ports in the one-component carrier wave.

12. method as claimed in claim 11 is characterized in that,

13. method as claimed in claim 12 is characterized in that,

Described filling bit is 0 bit.

14. method as claimed in claim 11 is characterized in that, when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, comprises following information:

15. method as claimed in claim 14 is characterized in that, when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, also comprises the frequency hopping flag bit in this descending control information format.

16. as claim 14 or 15 described methods, it is characterized in that,

17. method as claimed in claim 11 is characterized in that, when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave, comprises following information:

18. method as claimed in claim 17 is characterized in that, when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave, also comprises one of following at least information:

19. as claim 17 or 18 described methods, it is characterized in that,

20. method as claimed in claim 11, it is characterized in that, also comprise single antenna/many antenna ports transmission mode configuration flag bit in the described descending control information format, be used to indicate the Physical Uplink Shared Channel of described descending control information format scheduling to be the single antenna port transmission or to be many antenna port transmission; Perhaps, the cyclic redundancy check (CRC) of described descending control information format by descending control information format adds mask to indicate the Physical Uplink Shared Channel of described descending control information format scheduling is the single antenna port transmission or be many antenna ports transmission.

21. base station, it is characterized in that, described base station, the Downlink Control Information that will be used for dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal, wherein, described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, and the described descending control information format that is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission in the one-component carrier wave is identical with the payload of the descending control information format that is used to dispatch the Physical Uplink Shared Channel that many antenna ports transmit in the one-component carrier wave.

22. base station as claimed in claim 21 is characterized in that,

23. base station as claimed in claim 21 is characterized in that,

24. base station as claimed in claim 21 is characterized in that,

Perhaps,

25. as claim 22 or 23 or 24 described base stations, it is characterized in that,

Described filling bit is 0 bit.

26. base station as claimed in claim 21 is characterized in that, following information is carried at the descending control information format of the Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission in the one-component carrier wave in described base station:

27. base station as claimed in claim 26 is characterized in that, one of following at least information is also carried at the descending control information format of the Physical Uplink Shared Channel that is used for dispatching the single antenna port transmission in the one-component carrier wave in described base station:

The frequency hopping flag bit.

28. base station as claimed in claim 21 is characterized in that, following information is carried at the descending control information format of the Physical Uplink Shared Channel that is used for dispatching the many antenna ports transmission in the one-component carrier wave in described base station:

29. base station as claimed in claim 28 is characterized in that, one of following at least information is also carried at the descending control information format of the Physical Uplink Shared Channel that is used for dispatching the many antenna ports transmission in the one-component carrier wave in described base station:

30. as the arbitrary described base station of claim 25 to 29, it is characterized in that, described base station is used for cyclic redundancy check (CRC) by descending control information format and adds the descending control information format that mask is distinguished the Physical Uplink Shared Channel that is used to dispatch single antenna port transmission and the transmission of many antenna ports.

31. base station, it is characterized in that, described base station, the Downlink Control Information that is used for being used to dispatching Physical Uplink Shared Channel is carried on descending control information format and sends to terminal, and described descending control information format is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission and the transmission of many antenna ports in the one-component carrier wave.

32. base station as claimed in claim 31 is characterized in that,

33. base station as claimed in claim 32 is characterized in that,

Described filling bit is 0 bit.

34. base station as claimed in claim 31, it is characterized in that, described base station is used for carrying following information in described descending control information format when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave:

35. base station as claimed in claim 34, it is characterized in that, described base station is used for when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the single antenna port transmission in the one-component carrier wave, also carries the frequency hopping flag bit in described descending control information format.

36. as claim 34 or 35 described methods, it is characterized in that,

37. base station as claimed in claim 31, it is characterized in that, described base station is used for carrying following information in described descending control information format when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave:

38. base station as claimed in claim 37, it is characterized in that, described base station is used for also carrying one of following at least information in described descending control information format when described descending control information format is used to dispatch the Physical Uplink Shared Channel of the many antenna port transmission in the one-component carrier wave:

39. as claim 37 or 38 described methods, it is characterized in that,

40. base station as claimed in claim 31, it is characterized in that, described base station, be used for carrying single antenna/many antenna ports transmission mode configuration flag bit, be used to indicate the Physical Uplink Shared Channel of described descending control information format scheduling to be the single antenna port transmission or to be many antenna port transmission at described descending control information format; Perhaps, being used for cyclic redundancy check (CRC) by descending control information format adds mask to indicate the Physical Uplink Shared Channel of described descending control information format scheduling is the single antenna port transmission or be many antenna ports transmission.