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Method for reporting channel state information and base station

Method for reporting channel state information and base station
IPC classes for russian patent Method for reporting channel state information and base station (RU 2531372):
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FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication systems. The invention provides a method for reporting channel state information which includes: an eNB (eNodeB) indicating UE to simultaneously feedback CSI (channel state information) reporting of one or more component carriers; the UE simultaneously feeds back the CSI reporting of one or more component carriers according to the indication of eNB. The invention also provides an eNB, which is configured to: indicate UE to simultaneously feedback CSI reporting of one or more component carriers.

EFFECT: invention solves the problem how the UE performs channel state information reporting for multiple (downlink) component carriers in a LTE-A system, which can not only ensure the reliability of transmitting channel state information but also reduce the feedback delay of channel state information as much as possible.

34 cl, 2 dwg, 3 tbl

 

The technical field to which the invention relates

The present invention relates to wireless communications and, in particular, to a method for reporting on the state of the channel and the base station.

Background of invention

In the project's Long-term Development Partnership Project 3rd Generation (3GPP LTE)User Equipment (UE) receives Information about the state of the Channel (CSI) channel downlink in accordance with a reference signal downlink and transmits feedback eNodeB (eNB) received CSI. In accordance with the signal CSI feedback from the UE, the eNB determines the modulation scheme and coding, and placement of physical resources and the transfer mode for data sent to the UE. In the LTE system, there are three types of CSI: Indication of Channel Quality (CQI), the Indicator Matrix Pre-Coding (PMI) and Indicator Rank (RI).

In the LTE system, the UE transmits the feedback CSI channel downlink two methods, which include periodic transmission of feedback and the aperiodic transmission by feedback, and two methods, respectively, are referred to as periodic message aperiodic CSI and the CSI message. The so-called periodic CSI message means that the UE transmits feedback CSI periodically CE is provided with a given eNB configuration; and the so-called aperiodic CSI message means that by initiating signaling eNB once triggers the UE to transmit on CSI feedback. In relation to periodic CSI message, in General, if the UE did not send the Physical shared Channel uplink Communication (PUSCH) in a certain frame, the CSI is transmitted through a Physical Control Channel uplink Communication (PUCCH); and if the UE has sent the PUSCH, the CSI is for PUSCH transmission. In relation to the aperiodic message CSI, CSI is transmitted exclusively on PUSCH.

In the project system LTE eNB expects a certain UE to send PUSCH through alarms provide uplink communications. Alarm providing uplink communication can be carried in format 0 Control Information downlink (DCI) and sent planned UE through a Physical Control Channel downlink (PDCCH). 1 bits in the DCI format 0 is used to trigger the UE to perform aperiodic CSI message, which is referred to as a CQI request.

If the UE detects a UE belonging PDCCH, which has the DCI format 0, the UE sends the PUSCH in accordance with the provision of UL, which is contained in the PDCCH. If the UE detects that 1-bit CQI request is set to "1" in the format 0 DCI, planned by format 0DCI PUSCH is sent aperiodic CSI message.

In addition to the CQI request information planning uplink communication format 0 DCI additionally includes: 1-bit flag hopping frequency used to specify that the permitted uses frequency-hopping; the allocation of resource blocks and resource allocation and frequency-hopping, a 5-bit Index (MCS); 1 bit of the new data indicator (NDI); 2-bit TPC command for scheduled PUSCH; 3-bit Cyclic shift for DM RS etc.

With this 5-bit MCS Index (IMCSare used to specify the joint Coding Scheme and Modulation (MCS) and Redundancy Version (RV), as shown in Table 1. The content, which together specifyincludes: modulationthe index Size of the Transport Blocks (TBS)and the redundancy version.

Table 1
The MCS index and the corresponding PUSCH: the order of the modulation index of the size of the transport block and the redundancy version.
The index of the MCS The order Modulation Index TBS Version Redundancy
0 2 0 0
1 2 1 0
2 2 2 0
3 2 3 0
4 2 4 0
5 2 5 0
6 2 6 0
7 2 7 0
8 2 8 0
9 2 9 0
10 2 10 0
11 4 10 0
12 4 11 0
13 4 12 0
14 4 13 0
15 4 14 0
16 4 15 0
17 4 16 0
18 4 17 0
19 4 18 0
20 4 19 0
21 6 19 0
22 6 20 0
23 6 21 0
24 6 22 0
25 6 23 0
26 6 24 0
27 6 25 0
28 6 26 0
29 Reserved 1
30 2
31 3

The UE determines the order modulationand the Size of T is bound Blocks (TBS) in accordance with the order modulation , index TBSand associated alarm and rules corresponding to the index of the MCS.

In the system of the LTE project, when the CQI request is equal to 1 andequal to 29 in the DCI format 0, and the bandwidth scheduled PUSCH:, it triggers the aperiodic CSI message, and scheduled PUSCH is not transmitted transport block that has the shared Channel uplink Communication (UL-SCH).

In addition, in the PDSCH to be sent to the corresponding UE that initiates random access, is a special type of grant UL, which is referred to as alarm Response for Random Access (provision RAR). In the random access procedure based on the lack of competition, providing RAR also includes a 1-bit CQI request used to initiate aperiodic feedback signal CSI. If the initiating random access UE detects owned UE providing RAR, on the basis of sent PUSCH, and PUSCH referred to as the First scheduled UL transmission, which is also referred to as Messages. 3 (Msg.3) random access. If the UE detects that 1-bit CQI request is set to "1" in providing RAR, Msg.3 CSI is sent, the feedback signal is ligature which seems pereodicheski. In the random access procedure based on competition, 1-bit CQI request is reserved in the provision of RAR, and is not used for triggering aperiodic feedback signal CSI.

In accordance with the type of feedback CQI and PMI, periodic/aperiodic CSI message accordingly has several kinds of modes of messages, as shown in Table 2 and Table 3. Each mode corresponds to a particular message content, CSI and message format. What kind of message mode will apply UE, specify the settings that are configured through signaling a higher level (the parameter cqi-FormatIndicatorPeriodic and cqi-ReportModeAperiodic respectively indicate the mode of periodic/aperiodic messages CSI), and it is associated with a transmission mode downlink configured for the UE, i.e. when a specific transmission mode can be configured only appropriate mode messages CSI.

Table 2
The mode of periodic messages CSI and the appropriate type of feedback CQI/PMI
The type of feedback PMI
No PMI One PMI
The type of feedback CQI PUCCH broadband CQI The mode 1-0 The mode 1-1
CQI subband, Selected UE The mode 2-0 Mode 2-1

Table 3
Mode aperiodic messages CSI and the appropriate type of feedback CQI/PMI
The type of feedback PMI
No PMI One PMI Several PMI
The type of feedback CQI PUCCH broadband CQI Mode 1-2
CQI subband, Selected UE The mode 2-0 Mode 2-2
CQI sub-bands, configure is consistent higher Level Mode 3-0 Mode 3-1

The project system LTE Advanced (LTE-A) system is the next generation system development project LTE, and it extends the bandwidth of the transmission through technology carrier aggregation (CA) to provide greater peak transfer rate. Fig. 1 illustrates a carrier aggregation system of the LTE-A, respectively, related technology. As shown in Fig. 1, each participating in the carrier aggregation is referred to as "component carrier (CC)". Several CC can be accommodated in the same frequency range, and can be placed in different frequency ranges.

When carrier aggregation, there is one primary component carrier (PCC), which is also referred to as the primary element (Pcell) UE, among several CC configured or activated for the UE through the eNB, and the other configured for UE SS are referred to as secondary component carriers (SCC) or secondary cells (Scells) UE. Typically, it is assumed that the quality of the channel PCC better. In the prior art it is assumed that the UE can send the PUCCH and semi-permanent plan (SPS) PUSCH on their PCC, and it can't send the PUCCH or SPS PUSCH other SCC.

In the system of the LTE-A eNB can send signals to the od of the WMD and the same UE on multiple CC (downlink), in consequence of which the UE is required to transmit on CSI feedback for each CC, which is configured or activated, when the eNB configures or activates several CC (downlink). In the prior art, it is assumed that each CC (downlink) can be configured with a separate transmission mode downlink and message mode CSI for the same UE. Then the UE transmits the feedback CSI, the corresponding CC, based on the message mode CSI for each CC (downlink). In the prior art, in the context of carrier aggregation also provides two messages CSI.

The way I, UE simultaneously transmits a feedback message to the CSI one CC (downlink).

Method II, the UE simultaneously transmits a feedback message CSI few CC (downlink).

When the simultaneous transmission of feedback messages CSI few CC (downlink) can be reduced delay feedback, thereby increasing the efficiency of the downlink, and, in the case of the aperiodic transmission of CSI feedback can also be reduced by losses on the initiating alarm. However, when the simultaneous transmission of feedback of CSI few CC (downlink)increases costs to feedback, and identifying Alannah circumstances, this can cause excessive CSI message and may affect the reliability of the message CSI and data uplink communication. Consequently, in the context of carrier aggregation, there is a challenge associated with how UE performs the message information about the state of the channel for a few CC (downlink), i.e. it is necessary to ensure not only the security of transmission of information about the state of the channel, but also to minimize the delay of feedback information about the channel state.

In addition, the prior art has also proposed that the project system is LTE-A provides planning between the bearing, i.e. the information planning other CC is sent on one CC, and information planning is transferred to the PDCCH by using a specific DCI format, which should go to scheduled UE, and the DCI Format is injected carrier indicator field (CIF) to specify scheduled CC. Today, in the system of the LTE-A can be aggregated not more than 5 CC and CIF is 3 bits. Configuring whether planning between the bearing and whether CIF format DCI, through signaling a higher level.

A brief description of the invention

The technical problem solved by the present invention, is before the grant method to return information about the state of the channel with the to ensure the reliability of transmission of information about the state of the channel, as well as to minimize the delay of feedback information about the channel state.

To solve the above task, the present invention provides a method for reporting on the status of the channel containing the stage at which:

eNB (eNodeB) indicates the UE to simultaneously transmit the feedback message CSI (information about the state of the channel) of one or more component carriers.

Simultaneous transmission of feedback messages CSI one or more component carrier contains simultaneous transmission of feedback messages CSI one or more component carrier in the same subcode.

Multiple component carrier contain all or part of a component carrier that is configured or activated for a UE in the system duplex time division, or contain all or part of the component carrier downlink, which are configured or activated for a UE in the system duplex frequency division.

The phase in which the eNB instructs the UE to simultaneously transmit the feedback message to the CSI one component carrier, contains what eNB does not allow the UE to simultaneously transmit the feedback message CSI multiple component carrier, i.e. the UE mo is no simultaneous transmission feedback message CSI only one component carrier;

the phase in which the eNB instructs the UE to simultaneously transmit the feedback message CSI multiple component carrier, contains what eNB allows the UE to simultaneously transmit the feedback message CSI multiple component carrier, i.e. the UE simultaneously transmits a feedback message to the CSI one or more component carriers.

Multiple component carrier are a group of component carriers.

Multiple component carrier are a group of component carriers which are set in advance, or group of component carriers configured by a high level; or more component carrier are a group of component carriers that meet certain pre-determined dependencies of component carriers configured or activated for the UE.

The phase in which the eNB instructs the UE to simultaneously transmit the feedback message to the CSI one or more component carriers includes a stage on which:

eNB through a high-level alarm, configures the UE for simultaneous transmission by periodic feedback messages CSI one or more component carriers.

The CSI message is a periodic message to the CSI; and

multiple component carrier is a component carrier which configure ofany with identical mode periodic messages CSI of the component carrier, configured or activated for the UE; or more component carriers are the component carriers that are configured with the same transmission mode downlink and identical mode periodic messages CSI of component carriers configured or activated for the UE.

The method further includes a step in which: when the UE simultaneously transmits feedback periodic CSI message multiple component carrier, the periodic CSI message is transmitted on one or more PUCCH (physical control channel uplink communication) with a specific format, or is transmitted through a PUSCH (physical shared channel uplink communication).

The phase in which the eNB instructs the UE to simultaneously transmit the feedback message to the CSI one or more component carriers includes a stage on which:

eNB configures the UE to the simultaneous transmission of the aperiodic feedback messages CSI one or more component carrier by means of a high-level alarm or instructs the UE to simultaneously transmit feedback aperiodic CSI message one or more component carrier by means of dynamic instructions or instructs the UE to simultaneously transmit feedback aperiodic CSI message about the Noi or more component carrier through a combination of configuration alarm high level dynamic indication.

The stage at which simultaneously transmit feedback aperiodic CSI message one component carrier, contains what one team of initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one component carrier in the same subcode;

the stage at which simultaneously transmit feedback aperiodic CSI message multiple component carrier, contains what one team of initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one or more component carrier in the same subcode; or the stage at which simultaneously transmit feedback aperiodic CSI message multiple component carrier, contains what are a few commands to trigger aperiodic messages CSI trigger UE to send feedback aperiodic CSI message multiple component carrier in the same subcode; or the stage at which simultaneously transmit feedback aperiodic CSI message multiple component carrier, contains what one team of initiation aperiodic messages CSI UE initiates transfer of feedback queue aperiodic CSI message each component carrier of the multiple component carrier ACC is accordance with a certain rule in several Subhadra.

The stage at which indicate the UE to simultaneously transmit feedback aperiodic CSI message one or more component carriers through a combination of configuration alarm high level dynamic indication, includes the steps are:

when using a high-level alarm UE is configured for simultaneous transmission of the aperiodic feedback messages CSI one component carrier, one team initiation triggers the UE to send feedback aperiodic CSI message one component carrier;

when using a high-level alarm UE is configured for simultaneous transmission of the aperiodic feedback messages CSI multiple component carrier, the UE initiate simultaneously send feedback aperiodic CSI message one or more component carrier based on the dynamic instructions from the eNB;

or, when using a high-level alarm UE is configured with the prohibition on simultaneous transmission of feedback aperiodic messages CSI multiple component carrier, one team initiation triggers the UE to send feedback aperiodic CSI message one component carrier;

when using high-level alarm, E is configured to permit simultaneous transmission of feedback aperiodic messages CSI multiple component carrier, the trigger UE to simultaneously transmit feedback aperiodic CSI message one or more component carrier based on the dynamic instructions from the eNB.

Dynamic instructions contains: PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, NDI (new data indicator) is equal to the first predetermined value,and the bandwidth scheduled PUSCHthen trigger UE to send feedback aperiodic CSI message multiple component carrier; when the CQI request indicates that triggers the aperiodic CSI message, NDI equal to the second predetermined value different from the first predetermined value,and the bandwidth scheduled PUSCHthen trigger UE to send feedback aperiodic CSI message one component carrier.

Dynamic indication further comprises: in PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, andor the bandwidth scheduled PUSCH then trigger UE to send feedback aperiodic CSI message one component carrier.

Dynamic instructions contains: PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, and NDI and/orare in a predetermined state, the trigger UE to send feedback aperiodic CSI message multiple component carrier; when the CQI request indicates that triggers the aperiodic CSI message, and NDI and/orare not in a predetermined state, the trigger UE to send feedback aperiodic CSI message one component carrier.

Dynamic instructions contains: PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, the PDCCH as tolerated field identification method aperiodic messages CSI and it is used to specify and initiate the UE to transmit feedback aperiodic CSI message one or more component carriers.

When the CQI request indicates that aperiodic CSI message is not initiated, the field identification method aperiodic messages the CSI is used to specify information planning uplink communication plan PUSCH.

Field identification method aperiodic messages CSI consists of 1 bit.

Dynamic instructions contains: PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, and PDCCH plans UE to send PUSCH at a predetermined component carrier, trigger UE to send feedback aperiodic CSI message multiple component carrier; otherwise, trigger UE to send feedback aperiodic CSI message one component carrier.

Dynamic instructions contains: when planning between the bearing, in PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message and carrier indicator field (CIF) is equal to a predetermined value, the trigger UE to send feedback aperiodic CSI message multiple component carrier; otherwise, trigger UE to send feedback aperiodic CSI message one component carrier.

Message CSI is aperiodic message CSI, multiple component carrier is a component carrier configured with identical modes aperiodic messages CSI component of the bearing, configured or activated for the UE, or are component carriers configured with identical transmission mode downlink and identical mode aperiodic messages CSI of component carriers configured and activated for the UE.

To solve the above task, the present invention also provides eNB (eNodeB), which is configured to:

indicate the UE to simultaneously transmit the feedback message CSI (information about the state of the channel) of one or more component carrier;

eNB is configured to indicate the UE to simultaneously transmit the feedback message to the CSI one or more component carrier in subcate;

eNB is configured to indicate the UE to simultaneously transmit the feedback message to the CSI one component carrier as follows: not permitting the UE to simultaneously transmit the feedback message CSI multiple component carrier; and

eNB is configured to indicate the UE to simultaneously transmit the feedback message CSI multiple component carrier as follows: eNB allows the UE to simultaneously transmit the feedback message to the CSI of multiple component carriers.

Multiple component carrier are a group of component carriers.

Several component messihallide group component carrier, which is set in advance, or group of component carriers configured by a high level; or more component carrier are a group of component carriers that meet certain pre-determined dependencies of component carriers configured or activated for the UE.

eNB is used to configure the UE by signaling a high level, for simultaneous transmission by periodic feedback messages CSI one or more component carriers.

The CSI message is a periodic message, CSI, and multiple component carrier is a component carrier that is configured with the same mode of periodic messages CSI of component carriers configured or activated for the UE; or more component carriers are the component carriers that are configured with the same transmission mode downlink and identical mode periodic messages CSI of component carriers configured or activated for the UE.

eNB is configured to UE configuration for simultaneous transmission of the aperiodic feedback messages CSI one or more component carrier by means of a high-level alarm, or specify a UE at the same time p is to redate feedback aperiodic CSI message one or more component carrier by means of dynamic instructions or indicate the UE to simultaneously transmit feedback aperiodic CSI message one or more component carrier through a combination of configuration alarm high level dynamic indication.

Simultaneous transmission on feedback aperiodic messages CSI one component carrier contains what one team of initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one component carrier in the same subcode;

simultaneous transmission on feedback aperiodic messages CSI multiple component carrier contains what one team of initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one or more component carrier in the same subcode; or, simultaneous transmission on feedback aperiodic messages CSI multiple component carrier contains what are a few commands to trigger aperiodic messages CSI trigger UE to send feedback aperiodic CSI message multiple component carrier in the same subcode; or simultaneous transmission on feedback aperiodic messages CSI multiple component carrier contains what one team of initiation aperiodic with the Benia CSI UE initiates transfer of feedback queue aperiodic CSI message each component carrier of the multiple component carrier in accordance with a certain rule in several Subhadra.

eNB is configured to:

when using a high-level alarm UE is configured for simultaneous transmission of the aperiodic feedback messages CSI one component carrier, using one command initiation to trigger UE to send feedback aperiodic CSI message one component carrier;

when using a high-level alarm UE is configured for simultaneous transmission of the aperiodic feedback messages CSI multiple component carrier, the initiating UE simultaneous transmission of feedback UE aperiodic messages CSI one or more component carrier based on the dynamic instructions from the eNB; or,

when using a high-level alarm UE is configured with the prohibition on simultaneous transmission of feedback aperiodic messages CSI multiple component carriers using a single command initiation to trigger UE to send feedback aperiodic CSI message one component carrier;

when using a high-level alarm UE is configured to permit simultaneous transmission of feedback aperiodic messages CSI multiple component carrier, the initiating UE to simultaneously transmit on the reverse is th link aperiodic CSI message one or more component carrier based on the dynamic instructions from the eNB.

eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, NDI (new data indicator) is equal to the first predetermined value,and the bandwidth scheduled PUSCH, trigger UE to send feedback aperiodic CSI message multiple component carrier; when the CQI request indicates that triggers the aperiodic CSI message, NDI equal to the second predetermined value different from the first predetermined value,and the bandwidth scheduled PUSCH, trigger UE to send feedback aperiodic CSI message one component carrier.

eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, andor the bandwidth scheduled PUSCH, trigger UE to send feedback aperiodic CSI message one component is essay.

eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, and NDI and/orare in a predetermined state, trigger UE to send feedback aperiodic CSI message multiple component carrier; when the CQI request indicates that triggers the aperiodic CSI message, and NDI and/orare not in a predetermined state, the trigger UE to send feedback aperiodic CSI message one component carrier; or

eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, PDCCH as tolerated field identification method aperiodic messages CSI and it is used to specify and initiate the UE to transmit feedback aperiodic CSI message one or more component carrier; when the CQI request indicates that aperiodic CSI message is not initiated, the field identification method aperiodic messages CSI is used is to indicate information planning uplink communication plan PUSCH; or,

eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, and PDCCH plans UE to send PUSCH at a predetermined component carrier, trigger UE to send feedback aperiodic CSI message multiple component carrier; otherwise, trigger UE to send feedback aperiodic CSI message one component carrier; or,

eNB is configured to perform dynamic instructions as follows: when planning between the bearing, in PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message and carrier indicator field (CIF) is equal to a predetermined value, the trigger UE to send feedback aperiodic CSI message multiple component carrier; otherwise, trigger UE to send feedback aperiodic CSI message one component carrier.

In PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, the PDCCH as tolerated by the OLE identification method aperiodic messages CSI and it is used to specify and initiate the UE to transmit feedback aperiodic CSI message one or more component carrier and the identification field method aperiodic messages CSI consists of 1 bit.

Message CSI is aperiodic message CSI, multiple component carrier is a component carrier configured with identical modes aperiodic messages CSI of component carriers configured or activated for the UE, or are component carriers configured with identical transmission mode downlink and identical mode aperiodic messages CSI of component carriers configured and activated for the UE.

By applying the method of the present invention solves the problem associated with how UE performs the message information about the state of the channel with respect to several component bearing (downlink) in the project system LTE-A, it ensures not only the reliability of the transmission of information about the state of the channel, but also maximally reduces delay transmission of feedback information about the channel state.

List of figures

Fig. 1 illustrates a carrier aggregation system of LTE-A.

Fig. 2 is a schematic depiction of a method for message status information in the present invention.

Preferred embodiments of the present invention

Lower compt what about the drawings in detail will be illustrated embodiments of the present invention. It should be noted that embodiments of the present invention, however, as the signs in the versions of the implementation, can be arbitrarily combined with each other, with no conflicts.

The present invention provides a method for reporting on the state of the channel, as shown in Fig. 2, and the method comprises steps in which: eNB instructs the UE to simultaneously transmit the feedback message to the CSI one or more component carriers. UE simultaneously transmits a feedback message to the CSI one or more component carrier in accordance with an indication from the eNB.

The component carrier is a component carrier downlink (DL CC) in Duplex Frequency Division (FDD), or component carriers in the system Duplex time Division (TDD).

Preferably, simultaneous transmission of feedback messages CSI one or more component carrier contains simultaneous transmission of feedback messages CSI one or more component carrier in subcate.

Preferably, the indication eNB simultaneous transmission of feedback UE message CSI one component carrier refers to the fact that eNB does not allow the UE to simultaneously transmit the feedback message CSI multiple component carrier, i.e. UE m which can simultaneously transmit the feedback message CSI only one component carrier;

indication eNB simultaneous transmission of feedback UE message CSI multiple component carrier refers to the fact that eNB allows the UE to simultaneously transmit the feedback message CSI multiple component carrier, i.e. the UE simultaneously transmits a feedback message to the CSI one or more component carriers.

Multiple component carrier are a group of component carriers.

Preferably, multiple component carrier apply to all bearing component that is configured or activated for the UE (in TDD), or apply to all component carrying downlink, which are configured or activated for the UE (in the FDD system).

Preferably, multiple component carrier are part of the component carrier, which is configured or activated for the UE (in TDD), or are part of the component carrier downlink, which are configured or activated for the UE (in the FDD system).

Preferably, multiple component carrier is set in advance or more component carrier configured high level.

Preferably, several bearing component refers to the component bearing that meet certain pre-determined dependence of the components is ntih bearing, configured or activated for the UE.

For example, multiple component carriers are the component carriers whose remains indexes CC (the index of the component carrier) is the same after the operation of division by 2 with a remainder of component carriers configured or activated for the UE.

As another example, in the FDD system, multiple component carriers are the component carrying the downlink corresponding to the same component carrier uplink communication from a component carrier downlink configured and activated for the UE.

As another example, in the FDD system, in relation to one UE, if there is such a DL SCC, whose corresponding CC uplink connection is not configured or not enabled for the UE, then all such DL SCC merged with DL PCC equipment UE, to create a group CC.

As an example, the above-mentioned group CC refers to the CC is configured with the same transmission mode downlink of CC, configured or activated for the UE.

In particular, if there is only one CC, configured or activated for the UE in relation to a specific transmission mode downlink, then the mentioned group CC includes only one CC.

For example, by mentioning the Tay group CC refers to the CC in the same band of frequencies of the CC, configured or activated for the UE.

In particular, if there is only one CC, configured or activated for a UE in a specific frequency band, then the mentioned group CC includes only one CC.

(I) Periodic CSI message

Preferably, multiple component carrier belong to the bearing component, which is configured with the same mode of periodic messages CSI of component carriers configured or activated for the UE.

Preferably, multiple component carrier belong to the bearing component, which is configured with the same transmission mode downlink and identical mode periodic messages CSI of component carriers configured or activated for the UE.

If the eNB instructs the UE to simultaneously transmit feedback periodic CSI message multiple CC, and CC configured or activated for the UE, divided into several groups, the UE in turn transmits feedback periodic CSI message for each group CC in accordance with a certain rule.

When the UE transmits feedback periodic CSI message, the UE transmits feedback periodic CSI message corresponding CC in accordance with the configured periodic regime the knobs the CSI of each CC.

eNB configures the UE to simultaneous transmission by periodic feedback messages CSI one or more CC through a high-level alarm.

An implementation option one

Defined two methods periodic messages CSI:

method one simultaneously transmit feedback periodic CSI message one CC;

method two simultaneously transmit feedback periodic CSI message multiple CC.

eNB configures the method of periodic messages CSI, a specific UE as the method one or method two by a high-level alarm. When configured method two, the UE simultaneously transmits feedback periodic CSI message all configured or activated CC (downlink).

An implementation option two

eNB allows a specific UE to simultaneously transmit feedback periodic CSI message several CC through a high-level alarm.

With respect to a particular UE, if Smoking simultaneous transmission by periodic feedback messages CSI few CC, the UE simultaneously transmits feedback periodic CSI message one configured or activated CC (downlink); if applied to the UE, allowed simultaneous transmission on the reverse is th periodic communication messages CSI few CC, the UE simultaneously transmits feedback periodic CSI message all configured or activated CC (downlink).

When the UE simultaneously transmits feedback periodic CSI message multiple CC, the periodic CSI message is transmitted through a PUCCH with a specific format, or transmitted by multiple PUCCH, or transmitted on PUSCH.

PUCCH with a specific format refers to the PUCCH, which is allocated to transfer large amounts of information management uplink connection.

When the UE simultaneously transmits feedback periodic CSI message multiple CC, eNB activates one SPS PUSCH to the UE to be transferred periodic messages CSI.

SPS PUSCH is transmitted on the PCC equipment UE.

During transmission SPS PUSCH, if the eNB dynamically plans UE to send PUSCH in his PCC, then dynamically planned PUSCH dispatched before SPS PUSCH, that is, the UE sends dynamically how best to plan PUSCH and not sending SPS PUSCH.

(II) Aperiodic CSI message

Simultaneous transmission on feedback aperiodic messages CSI leaving one carrier refers to the fact that one team initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one component carrier in the same subcode.

Simultaneous transmission on the arr is based communications aperiodic messages CSI multiple component carrier belongs to that one command initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one or more component carrier in the same subcode; or,

simultaneous transmission on feedback aperiodic messages CSI multiple component carrier refers to the fact that several teams initiate aperiodic messages CSI trigger UE to send feedback aperiodic CSI message one or more component carrier in the same subcode.

Or,

simultaneous transmission on feedback aperiodic messages CSI multiple component carrier refers to the fact that one team initiation aperiodic messages CSI UE initiates transfer of feedback queue aperiodic CSI message each component carrier of the multiple component carrier in accordance with a certain rule in several Subhadra.

eNB triggers the UE to send feedback aperiodic CSI message via initiation.

Command initiation is a request CQI, and the aperiodic CSI message is triggered when the CQI request=1.

The CQI request can be sent with a response to a random access to the UE that initiates the corresponding random access and can be send from the ene by PDCCH with a specific DCI format, scheduled UE. PDCCH with a specific DCI format is used for scheduling PUSCH.

Preferably initiated by the aperiodic CSI message is transmitted in the PUSCH, which is scheduled PDCCH that carries a team of initiation.

Preferably, PUSCH, which is scheduled PDCCH, which triggers the UE to send feedback aperiodic CSI message multiple CC, transfer transport unit carrying the UL-SCH.

Preferably, several CC belong to CC, which are configured with identical modes aperiodic messages CSI of component carriers configured or activated for the UE.

When the UE transmits feedback aperiodic CSI message, the aperiodic CSI message corresponding CC is transmitted on the reverse link in accordance with the configured mode aperiodic messages CSI of each CC.

If the eNB instructs the UE to simultaneously transmit feedback aperiodic CSI message one CC, the UE transmits feedback aperiodic CSI message corresponding one CC in accordance with the command initiation within one of the triggering event, and different teams of initiation correspond to different CC.

If the eNB instructs the UE to simultaneously transmit feedback aperiodic CSI message multiple CC and CC configured or Akti is new for the UE, divided into several groups, the UE transmits the aperiodic feedback message CSI group corresponding CC in accordance with the command initiation within one of the triggering event, and different teams of initiation correspond to different groups.

The corresponding relationship between the command initiation and one or more CC in respect of which he is initiating, determined in accordance with predefined rules.

When this eNB instructs the UE to transmit feedback aperiodic CSI message the following three methods: semi-static configuration dynamic indication and a combination of semi-static configuration and dynamic instructions. This is further illustrated by the following:

1. Method semi-static configuration aperiodic messages CSI.

eNB configures the UE to the simultaneous transmission of the aperiodic feedback messages CSI one or more CC through a high-level alarm.

An implementation option three

Defined two methods aperiodic messages CSI.

Method one, is simultaneously transferred via feedback aperiodic CSI message one CC;

Method two simultaneously transmitted by the aperiodic feedback message CSI few CC.

eNB configures the method of aperiodic the ski messages CSI, a specific UE as the method one or method two by a high-level alarm. When configured method two, the UE simultaneously transmits feedback aperiodic CSI message all configured or activated CC (downlink).

In the TDD system, the eNB configures or activates three CC for the UE, which are respectively designated as CC0, CC1 and CC2.

If configured that the method of aperiodic messages CSI UE is method one:

when the UE detects a UE belonging PDCCH with a specific format control information downlink, PDCCH plans UE to send PUSCH under CC0 (or CC1 or CC2), and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 (or CC1 or CC2).

If configured that the method of aperiodic messages CSI UE is method two:

when the UE detects a UE belonging PDCCH with a specific format control information downlink, PDCCH plans UE to send PUSCH under CC0 or CC1 or CC2, and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0, CC1 and CC2.

An implementation option four

eNB allows a specific UE to simultaneously transmit feedback aperiodic CSI message several CC through alarms and high level.

With respect to a particular UE, if Smoking simultaneous transmission on feedback aperiodic messages CSI few CC, the UE simultaneously transmits feedback aperiodic CSI message one configured or activated CC (downlink); if applied to the UE, allowed simultaneous transmission on feedback aperiodic messages CSI few CC, the UE simultaneously transmits feedback aperiodic CSI message all configured or activated CC (downlink).

An implementation option five

Defined two methods aperiodic messages CSI.

Method one, is simultaneously transferred via feedback aperiodic CSI message one CC;

Method two simultaneously transmitted by the aperiodic feedback message CSI few CC.

eNB configures the method of aperiodic messages CSI, a specific UE as the method one or method two by a high-level alarm.

In the TDD system, the eNB configures or activates three CC for the UE, which are respectively designated as CC0, CC1 and CC2. While CC0 and CC1 are configured as a group of CC through high level and CC2 belongs to another group CC.

If configured that the method of aperiodic messages CSI UE is method one:

when the UE detecting the supports belonging to the UE PDCCH with a specific format control information downlink, and PDCCH plans UE to send PUSCH under CC0 (or CC1 or CC2), and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 (or CC1 or CC2).

If configured that the method of aperiodic messages CSI equipment UE is method two:

when the UE detects a UE belonging PDCCH with a specific format control information downlink, and PDCCH plans UE to send PUSCH under CC0 or CC1, and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 and CC1;

when the UE detects a UE belonging PDCCH with a specific format control information downlink, and PDCCH plans UE to send PUSCH on CC2, and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC2.

2. Method of dynamic instructions aperiodic messages CSI.

eNB dynamically indicates the UE to simultaneously transmit feedback aperiodic CSI message one or more CC.

eNB triggers the UE to send feedback aperiodic CSI message via initiation.

Command initiation is a CQI request, and when the CQI request=1, is triggered aperiodic CSI message.

The CQI request can be sent through the response to arbitrary is the first access to the UE, initiating a corresponding random access and can be sent via PDCCH with a specific DCI format, scheduled UE.

PDCCH with a specific DCI format is used for scheduling PUSCH.

Preferably initiated aperiodic CSI message is transmitted in the PUSCH, which is scheduled PDCCH that carries a team of initiation.

Preferably, PUSCH, which is scheduled PDCCH, which triggers the UE to send feedback aperiodic CSI message multiple CC, transfer transport unit carrying the UL-SCH.

The team of initiation is enabled in response to the random access, the default is to trigger UE to send feedback aperiodic CSI message one CC or the default is to trigger UE to send feedback aperiodic CSI message multiple CC.

That is, when the UE detects a UE belonging response to random access in response to the CQI request=1, the UE is triggered to send feedback aperiodic CSI message one CC.

Preferably one CC is CC, sends a response to the random access.

Or when UE detects a UE belonging response to random access in response to the CQI request=1, the UE is triggered to send feedback aperiodic CSI message multiple CC.

<> Method one

One team of initiation is used to trigger the UE to send feedback aperiodic CSI message one CC.

In relation to the UE, in one cupcake can be multiple commands initiate to initiate aperiodic messages CSI.

In one subcode eNB uses a single command initiation to trigger UE to send feedback aperiodic CSI message corresponding one CC, or eNB uses several commands initiation to initiate the UE to simultaneously transmit feedback aperiodic CSI message to several relevant CC.

An implementation option six

In the FDD system, the eNB configures or activates four pairs of CC for the UE, which are respectively denoted as DL and UL CC0 CC0, DL CC1 and UL CC1, DL CC2 and UL CC2, as well as DL and UL CC3 CC3.

If one cupcake UE detects the intended UE one PDCCH with a specific DCI format, and PDCCH plans UE to send PUSCH on UL CC0, and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL.

If one cupcake UE detects owned UE 2 PDCCH, have a specific DCI format, and 2 PDCCH plan UE to send PUSCH on UL CC1 and UL CC2, respectively, in the PDCCH, which is planning to send PUSCH on UL CC1, the CQI request=0, and the PDCCH, responsible for the planning to send PUSCH on UL CC2, the CQI request=0, the UE is triggered to send feedback aperiodic CSI message carrier CC1 DL.

If one cupcake UE detects owned UE 2 PDCCH, have a specific DCI format, and 2 PDCCH plans UE to send PUSCH on UL and UL CC0 CC3, respectively, and in both PDCCH, the CQI request=1, the UE is triggered to send feedback aperiodic CSI message bearing CC0 DL and DL CC3.

Method two

In PDCCH with a specific DCI format when the request CQI indicates the initiation of aperiodic messages CSI (as, for example, the CQI request=1), and NDI (New Data Indicator) is equal to the first predetermined value (for example, NDI=1 or 0),and the bandwidth scheduled PUSCHthen UE is triggered to send feedback aperiodic CSI message a few CC. When the CQI request indicates the initiation of aperiodic messages CSI (as, for example, the CQI request=1), and NDI equal to the second predetermined value (for example, NDI=0 or 1),and the bandwidth scheduled PUSCHthen UE is triggered to send feedback aperiodic CSI message one CC.

In PDCCH with a specific DCI format when the request CQI indicates the initiation aperiodicheskogo the messages CSI ( for example, the CQI request=1),and the bandwidth scheduled PUSCHthen PUSCH planned PDCCH, does not transmit TB, carrying the UL-SCH.

Preferably, in the PDCCH with a specific DCI format when the request CQI indicates the initiation of aperiodic messages CSI (as, for example, the CQI request=1), andor the bandwidth scheduled PUSCHthen UE is triggered to send feedback aperiodic CSI message one CC.

Preferably, with respect to UE, in one cupcake is not more than one command initiation to initiate aperiodic messages CSI.

That is, when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, NDI=1,and the bandwidth scheduled PUSCHthen UE is triggered to send feedback aperiodic CSI message to several relevant CC.

Preferably, the aperiodic CSI message to several relevant CC is transmitted in the PUSCH, which is scheduled PDCCH.

When the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, NDI=0,and the bandwidth scheduled PUSCHthen UE is triggered to send feedback SV is zi aperiodic CSI message one of the corresponding CC.

Preferably, the aperiodic CSI message one of the corresponding CC is transmitted in the PUSCH, which is scheduled PDCCH.

Method three

In PDCCH with a specific DCI format when the request CQI indicates the initiation of aperiodic messages CSI (as, for example, the CQI request=1), and NDI and/orare in a predetermined state, the UE is triggered to send feedback aperiodic CSI message a few CC. When the CQI request indicates the initiation of aperiodic messages CSI (as, for example, the CQI request=1), and NDI and/orare not in a predetermined state, the UE is triggered to send feedback aperiodic CSI message one CC.

Preferably, with respect to UE, in one cupcake is not more than one command initiation to initiate aperiodic messages CSI.

An implementation option seven

In PDCCH with a specific DCI format, when the CQI request=1, NDI=1, andequal to any integer from 29 to 31 or a predetermined integer, the UE is triggered to send feedback aperiodic CSI message a few CC. When the CQI request=1, NDI=0 oris not one of the integers from 29 to 31 or the preset number, the UE is triggered to send back on the due aperiodic CSI message one CC.

In this case, when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, NDI=1,equal to any integer from 29 to 31 or a predetermined integer, the UE is triggered to send feedback aperiodic CSI message to several relevant CC.

When the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, NDI=1,is not one of the integers from 29 to 31 or a predetermined integer, the UE is triggered to send feedback aperiodic CSI message one of the corresponding CC.

An implementation option eight

In PDCCH with a specific DCI format, when the CQI request=1, NDI=0, andequal to any integer from 0 to 28, or a predetermined integer, the UE is triggered to send feedback aperiodic CSI message a few CC. When the CQI request=1, NDI=1 ornot equal to any integer from 0 to 28, or a predetermined integer, the UE is triggered to send feedback aperiodic CSI message one CC.

In the case when UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, NDI=0, andequal to any integer from 0 to 28 or paraneoptera integer, the UE is triggered to send feedback aperiodic CSI message to several relevant CC.

When the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, NDI=1 oris not one of the integers from 0 to 28, or a predetermined integer, the UE is triggered to send feedback aperiodic CSI message one of the corresponding CC.

Method four

In PDCCH with a specific DCI format when the request CQI indicates the initiation of aperiodic messages CSI, as, for example, the CQI request=1, PDCCH is transferred field identification method aperiodic messages CSI to indicate that the UE is triggered to send feedback aperiodic CSI message one or more CC, and the field identification method aperiodic messages CSI may consist of 1 bits.

Preferably, when the CQI request indicates that not initiated aperiodic CSI message (as, for example, the CQI request=0), the field identification method aperiodic messages CSI is used to specify, for example, information planning uplink communication plan PUSCH,

field identification method aperiodic messages CSI is the flag of the frequency-hopping;

or, the identification field method aperiodic soo is the value of CSI is one bit of the 5-bit MCS, such as the most significant bit;

or, the identification field method aperiodic messages CSI is one bit of the 2-bit TPC commands;

or, the identification field method aperiodic messages CSI is one bit of the 3 bit cyclic shift for DM RS.

Preferably, with respect to UE, in one cupcake is not more than one command initiation to initiate aperiodic messages CSI.

An implementation option nine

In PDCCH with a specific DCI format, when the CQI request=1, and 1 bit in the PDCCH is used to specify and initiate the UE to transmit feedback aperiodic CSI message several or one CC: when 1 bit is set to "1", the UE is triggered to send feedback aperiodic CSI message several CC; when 1 bit is set to "0", the UE is triggered to send feedback aperiodic CSI message one CC.

In PDCCH with a specific DCI format, when the CQI request=0, 1 bit in the PDCCH is a flag frequency-hopping, which indicates whether the use of frequency-hopping against PUSCH scheduled PDCCH.

In this case, when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, if 1 bit is set to "1", the UE is triggered to pass on about atoi communication aperiodic CSI message to several relevant CC; if 1 bit is set to "0", the UE is triggered to send feedback aperiodic CSI message one of the corresponding CC. And by default, in respect of scheduled PUSCH allowed the abrupt change in the frequency (or frequency hopping is forbidden).

When the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=0, if 1 bit is set to "1", in relation to scheduled PUSCH permitted frequency hopping, and if 1 bit is set to "0", in respect of scheduled PUSCH frequency hopping is prohibited.

Option exercise ten

In PDCCH with a specific DCI format, when the CQI request=1, and 1 bit in the PDCCH is used to specify and initiate the UE to transmit feedback aperiodic CSI message several or one CC: when 1 bit is set to "1", the UE is triggered to send feedback aperiodic CSI message several CC; and when 1 bit is set to "0", the UE is triggered to send feedback aperiodic CSI message one CC.

In PDCCH with a specific DCI format, when the CQI request=0, 1 bit in the PDCCH is significant bit (LSB) of the 5-bit MCS index, which indicate MCS and RV channel PUSCH scheduled PDCCH.

In this case, when the UE detects belonging is th UE PDCCH with a specific DCI format, and if the CQI request=1, if 1 bit is set to "1", the UE is triggered to send feedback aperiodic CSI message to several relevant CC; if 1 bit is set to "0", the UE is triggered to send feedback aperiodic CSI message one of the corresponding CC. And the range of index values MCS scheduled PUSCH equal to the values from 0 to 15 (or 16 preset integers from the range 0-31).

When the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=0, if 1 bit is the most significant bit of the 5-bit MCS index, the range of index values, MCS scheduled PUSCH is 0-31.

Option exercise eleven

In PDCCH with a specific DCI format, when the CQI request=1, and 1 bit in the PDCCH is used to specify and initiate the UE to transmit feedback aperiodic CSI message several or one CC: when 1 bit is set to "1", the UE is triggered to send feedback aperiodic CSI message several CC; and when 1 bit is set to "0", the UE is triggered to send feedback aperiodic CSI message one CC.

In PDCCH with a specific DCI format, when the CQI request=0, 1 bit in the PDCCH is the MSB (or the LSB) of the 3-bit cyclic shift for DM RS, which indicate cyclic shifted the e DM RS and OCC channel PUSCH, scheduled PDCCH.

In this case, when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, if 1 bit is set to "1", the UE is triggered to send feedback aperiodic CSI message to several relevant CC; if 1 bit is set to "0", the UE is triggered to send feedback aperiodic CSI message one of the corresponding CC. And the range of values of the cyclic shift for DM RS scheduled PUSCH equal to 4 predefined values from{0, 2, 3, 4, 5, 6, 8, 9, 10}.

When the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=0, if 1 bit is the most significant bit of the 5-bit MCS index, the range of index values, MCS scheduled PUSCH equal{0, 2, 3, 4, 5, 6, 8, 9, 10}.

Method five

In PDCCH with a specific DCI format when the request CQI indicates the initiation of aperiodic messages CSI (such as CQI request=1), and PDCCH plans UE to send PUSCH at a predetermined CC, the UE is triggered to send feedback aperiodic CSI message several CC$ otherwise, the UE is triggered to send feedback aperiodic CSI message one CC.

Preferably, the specific CC is one or more.

Preferably, the specific CC is exclusively PCC.

For example, when the UE about narrive belonging to the UE PDCCH with a specific DCI format, and PDCCH plans UE to send PUSCH in his PCC, and if the CQI request=1, the UE is triggered to send feedback aperiodic CSI message to several relevant CC;

when the UE detects a UE belonging PDCCH with a specific DCI format, and PDCCH plans UE to send PUSCH in his SCC, and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message one of the corresponding CC.

An implementation option twelve

In the FDD system, in PDCCH with a specific DCI format, when the CQI request=1 and PDCCH plans UE to send PUSCH in his PCC uplink communication, the UE is triggered to send feedback aperiodic CSI message group DL CC. This group DL CC in this embodiment includes: DL PCC equipment UE, and DL SCC, whose corresponding UL CC is not configured or not enabled for the UE (if DL SCC exists) of DL SCC configured or activated for the UE at the moment.

Otherwise, when the CQI request=1 and PDCCH plans UE to send PUSCH according UL SCC, the UE is triggered to send feedback aperiodic CSI message carrier DL CC corresponding to the UL SCC.

For example, in the FDD system, the eNB configures or activates a pair of bearing PCC, DL and UL CC0 SS, a pair of bearing SCC, DL CC1 and UL CC1, and two DL SCC, DL CC2 and DL CC3 (whose line is adequate UL SCC, UL CC2 and UL CC3, not configured or not enabled) for the UE. When this preset that DL CC0, DL CC2 and DL CC3 are a group of CC.

If one cupcake UE detects a UE belonging PDCCH with a specific DCI format, and PDCCH plans UE to send PUSCH on UL SS, and if the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL, carrier CC2 DL carrier and DL CC3.

If one cupcake UE detects a UE belonging PDCCH with a specific DCI format, and PDCCH plans UE to send PUSCH on UL CC1 and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC1 DL.

An implementation option thirteen

In the FDD system, the eNB configures and activates a pair of PCC, DL and UL CC0 SS, a couple of SCC, DL CC1 and UL CC1, and two DL SCC, DL CC2 and DL CC3 (whose corresponding UL SCC, the UL CC2 and UL CC3, not configured or not enabled) for the UE. While DL and DL CC0 CC2 belong to the same group, and DL CC1 and DL CC3 belong to another group.

If one cupcake UE detects a UE belonging PDCCH with a specific DCI format, and PDCCH plans UE to send PUSCH on UL SS, and if the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL carrier and DL CC2.

If one cupcake UE detects a UE belonging PDCCH with specific Faure the atom DCI, and PDCCH plans UE to send PUSCH on UL CC1 and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC1 DL carrier and DL CC3.

Method six

When planning between the bearing, in PDCCH with a specific DCI format when the request CQI indicates the initiation of aperiodic messages CSI (as, for example, the CQI request=1), and CIF is equal to a predetermined value, the UE is triggered to send feedback aperiodic CSI message several CC; otherwise, the UE is triggered to send feedback aperiodic CSI message one CC.

Option exercise fourteen

When planning between the carrier when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, CIF equal to any integer from 5-7 or a predetermined integer, the UE is triggered to send feedback aperiodic CSI message to several relevant CC;

when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, CIF equal to any integer from 0-4, the UE is triggered to send feedback aperiodic CSI message one of the corresponding CC.

Option exercise fifteen

eNB configures or activates 4 CC for a specific UE. When planning between chosen to replace the mi, when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, CIF equal to any integer from 4-7 or a predetermined integer, the UE is triggered to send feedback aperiodic CSI message to several relevant CC;

when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, CIF equal to any integer from 0-3, the UE is triggered to send feedback aperiodic CSI message one of the corresponding CC.

Option exercise sixteen

In the FDD system, the eNB configures or activates a pair of PCC, DL and UL CC0 CC0, a couple of SCC, DL CC1 and UL CC1, and two DL SCC, DL CC2 and DL CC3 (whose corresponding UL SCC, the UL CC2 and UL CC3, not configured or not enabled) for the UE. In this case, DL CC0, DL CC2 and DL CC3 belong to the same group.

When planning between the carrier when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1, CIF equal to any integer from 2-7, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL, carrier CC2 DL carrier and DL CC3.

When the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1; CIF=0 (or 1), then the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL (or carrier CC1 DL).

An implementation option seventeen

ICI is Birmingham FDD, eNB configures or activates a pair of PCC, DL and UL CC0 CC0, a couple of SCC, DL CC1 and UL CC1, and two DL SCC, DL CC2 and DL CC3 (whose corresponding UL SCC, the UL CC2 and UL CC3, not configured or not enabled) for the UE. In this case, DL and DL CC0 CC2 belong to the same group, and DL CC1 and DL CC3 belong to another group.

When planning between the carrier when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1; CIF=2, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL carrier and DL CC2.

When planning between the carrier when the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1; CIF=3, the UE is triggered to send feedback aperiodic CSI message carrier CC1 DL carrier and DL CC3.

When the UE detects a UE belonging PDCCH with a specific DCI format, and if the CQI request=1; CIF=0 (or 1), then the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL (or carrier CC1 DL).

3. Method semi-static configuration + dynamic instructions aperiodic messages CSI.

eNB UE initiates simultaneously send feedback aperiodic CSI message one or more CC through a combination of configuration alarm high level dynamic indication.

Preferably eNB through a high-level alarm permits one is a temporary transfer of feedback aperiodic messages CSI few CC.

When unresolved simultaneous transmission on feedback aperiodic messages CSI few CC, one team initiation triggers the UE to send feedback aperiodic CSI message one CC.

When allowed simultaneous transmission on feedback aperiodic messages CSI few CC, for initiating UE to simultaneously transmit feedback aperiodic CSI message one or more CC uses the method described in the technique of dynamic instructions aperiodic messages CSI.

Or, preferably, the eNB through a high-level alarm configures the UE to the simultaneous transmission of the aperiodic feedback messages CSI one or more CC.

When the method aperiodic messages CSI equipment UE is configured for simultaneous transmission of the aperiodic feedback messages CSI one CC, the command initiating triggers the UE to send feedback aperiodic CSI message one CC.

When the method aperiodic messages CSI equipment UE is configured for simultaneous transmission of the aperiodic feedback messages CSI few CC, for initiating UE to simultaneously transmit feedback aperiodic CSI message one or more CC is a dynamic indication. is definitely the way of dynamic instructions may relate to methods, mentioned in the above description of dynamic instructions. Of course, the present invention is not limited to the above-mentioned methods.

An implementation option eighteen

Defined two methods aperiodic messages CSI.

Method one, is simultaneously transferred via feedback aperiodic CSI message one CC;

Method two simultaneously transmitted by the aperiodic feedback message CSI few CC.

eNB configures the method of aperiodic messages CSI, a specific UE as the method one or method two by a high-level alarm.

In the FDD system, the eNB configures or activates a pair of PCC, DL and UL CC0 SS, a couple of SCC, DL CC1 and UL CC1 and 2 DL SCC, DL CC2 and DL CC3 (whose corresponding UL SCC, the UL CC2 and UL CC3, not configured or not enabled) for the UE. While DL CC0, DL CC2 and DL CC3 belong to the same group.

If configured that the method of aperiodic messages CSI equipment UE is method one:

if one cupcake UE detects a UE belonging PDCCH with a specific format control information downlink, and PDCCH plans UE to send PUSCH on UL CC0 (or UL CC1), and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL (or carrier CC1 DL).

If configured that the method of aperiodic messages CSI is oborudovanie UE is the method of two, then:

if one cupcake UE detects a UE belonging PDCCH with a specific format control information downlink, and PDCCH plans UE to send PUSCH on UL CC0, and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL, carrier DL CC2 and DL CC3 carrier.

If one cupcake UE detects a UE belonging PDCCH with a specific format control information downlink, and PDCCH plans UE to send PUSCH on UL CC1 and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC1 DL.

An implementation option nineteen

eNB through a high-level alarm allows a specific UE to simultaneously transmit feedback aperiodic CSI message multiple CC.

In the FDD system, the eNB configures or activates a pair of PCC, DL and UL CC0 SS, a couple of SCC, DL CC1 and UL CC1 and 2 DL SCC, DL CC2 and DL CC3 (whose corresponding UL SCC, the UL CC2 and UL CC3, not configured or not enabled) for the UE. While DL and DL CC0 CC2 belong to the same group, and DL CC1 and DL CC3 belong to another group.

If the UE is not allowed to pass on feedback aperiodic CSI message several CC:

if one cupcake, the UE detects a UE belonging PDCCH with a specific format information of control downward Lin and communication and PDCCH plans UE to send PUSCH on UL CC0 (or UL CC1), and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL (or carrier CC1 DL).

If UE can simultaneously transmit feedback aperiodic messages CSI few CC:

if one cupcake UE detects a UE belonging PDCCH with a specific format control information downlink, and PDCCH plans UE to send PUSCH on UL CC0, and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC0 DL carrier and DL CC2;

if one cupcake UE detects a UE belonging PDCCH with a specific format control information downlink, and PDCCH plans UE to send PUSCH on UL CC1 and the CQI request=1, the UE is triggered to send feedback aperiodic CSI message carrier CC1 DL carrier and DL CC3.

In the above-mentioned methods, simultaneous transmission on the feedback of several CC can be replaced by a simultaneous transmission on the feedback group CC.

Specialist in the relevant field may understand that all or part of the steps in the above method can be performed by programs that control the corresponding hardware, and the programs may be stored in a machine-readable h is setele data such as permanent memory, magnetic disk or optical disk, etc. Additionally, all or part of the steps of the above examples can also be implemented using one or more integrated circuits. Accordingly, all modules/units in the examples described above may be implemented by hardware or implemented by the functional modules of the software. The invention is not limited to any combination of hardware and software.

The above description is only preferred variant of the invention, however, it is not limited to the scope of legal protection of inventions, and a specialist in the relevant field can be made various changes or substitutions. Any modifications, equivalent substitutions, improvements etc. made without leaving the essence and principles of the invention should be in the scope of legal protection of inventions.

Industrial applicability

The invention solves the problem, which is how the UE performs the message information about the state of the channel for multiple component carriers (downlink) in the project system LTE-A, it ensures not only the reliability of the transmission of information about the state of the channel, as well as the maximum with the rotatin delay feedback information about the channel state.

1. Method to return information about the state of the channel containing the stage at which:
an enhanced node B (eNB, eNodeB) indicates a user equipment (UE) to transmit feedback information about the channel state (CSI) of one or more component carrier, the phase in which the eNB instructs the UE to simultaneously transmit the feedback message to the CSI one or more component carriers includes a stage on which:
eNB configures the UE to the simultaneous transmission of the aperiodic feedback messages CSI one or more component carrier by means of a high-level alarm; or specifies equipment UE to simultaneously transmit feedback aperiodic CSI message one or more component carrier by means of dynamic instructions; or specifies equipment UE to simultaneously transmit feedback aperiodic CSI message one or more component carrier by combining the configuration of a high-level alarm with dynamic indication.

2. The method according to claim 1, in which the phase in which simultaneously transmit the feedback message to the CSI one or more component carrier, refers to the simultaneous transmission of feedback messages CSI one or more component carrier in su the frame.

3. The method according to claim 1, in which the mentioned multiple component carrier contain all or part of a component carrier that is configured or activated for this UE in the system duplex time division, or all or part of the component carrier downlink, which are configured or activated for this UE in the system duplex frequency division.

4. The method according to claim 1, in which the phase in which the eNB instructs the UE to simultaneously transmit the feedback message to the CSI one component carrier, refers to the fact that eNB makes the UE is not able to simultaneously transmit the feedback message CSI multiple component carrier, i.e. the aforementioned UE can simultaneously transmit on the reverse link message CSI only one component carrier;
the phase in which the eNB instructs the UE to simultaneously transmit the feedback message CSI multiple component carrier, refers to the fact that eNB allows the UE to simultaneously transmit the feedback message CSI multiple component carrier, i.e. the UE simultaneously transmits a feedback message to the CSI one or more component carriers.

5. The method according to claim 1, in which multiple component carrier are a group of component carriers.

6. The method according to claim 1, in which multiple component are what they are a group of component carriers which is set in advance, or group of component carriers configured by a high level; or referred to multiple component carrier are a group of component carriers that meet certain pre-determined according to a component carrier configured or activated for this UE.

7. The method according to claim 1, in which the phase in which the eNB instructs the UE to simultaneously transmit the feedback message to the CSI one or more component carrier further comprises a stage on which:
eNB through a high-level alarm, configures the UE for simultaneous transmission by periodic feedback messages CSI one or more component carriers.

8. The method according to claim 1, in which
send a message CSI is a periodic message transmission CSI; and
mentioned several of the component carrier is a component carrier that is configured with the same mode of periodic messages CSI in a component carrier configured or activated for the said UE; or referred to multiple component carrier is a component carrier that is configured with the same transmission mode downlink and identical mode periodic messages CSI in the component carrier, sconf generowania or activated for this UE.

9. The method according to claim 1, additionally containing a stage at which: when the UE simultaneously transmits feedback periodic CSI message multiple component carrier, then it is a periodic message, the CSI is transmitted on one or more PUCCH (physical control channel uplink communication) with a specific format, or is transmitted through a PUSCH (physical shared channel uplink communication).

10. The method according to claim 1, in which
the stage at which simultaneously transmit feedback aperiodic CSI message one component carrier, refers to the fact that one team initiating transmission of aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one component carrier in the same subcode;
the stage at which simultaneously transmit feedback aperiodic CSI message multiple component carrier, refers to the fact that one team initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one or more component carrier in the same subcode; or the stage at which simultaneously transmit feedback aperiodic CSI message multiple component carrier, refers to the fact that several teams initiate aperiodic messages CSI UE initiate eradiate feedback aperiodic CSI message multiple component carrier in the same subcode; or the stage at which simultaneously transmit feedback aperiodic CSI message multiple component carrier, refers to the fact that one team initiation aperiodic messages CSI UE initiates transfer of feedback queue aperiodic CSI message each component carrier of the multiple component carrier in accordance with a certain rule in several Subhadra.

11. The method according to claim 1, in which step, which indicate the UE to simultaneously transmit feedback aperiodic CSI message one or more component carrier, by combining the configuration of a high-level alarm with dynamic indication contains the steps are:
when using a high-level alarm UE is configured for simultaneous transmission of the aperiodic feedback messages CSI one component carrier, one team initiation triggers the UE to send feedback aperiodic CSI message one component carrier;
when using a high-level alarm UE is configured for simultaneous transmission of the aperiodic feedback messages CSI multiple component carrier, the UE initiate simultaneously send feedback aperiodic CSI message one or more components is ntih bearing on the basis of dynamic instructions from the eNB;
or, when using a high-level alarm UE is configured with the prohibition on simultaneous transmission of feedback aperiodic messages CSI multiple component carrier, one team initiation triggers the UE to send feedback aperiodic CSI message one component carrier;
when using a high-level alarm UE is configured to permit simultaneous transmission of feedback aperiodic messages CSI multiple component carrier, the UE initiate simultaneously send feedback aperiodic CSI message one or more component carrier based on the dynamic instructions from the eNB.

12. The method according to claim 1 or 11, in which the dynamic instruction contains: physical control channel downlink (PDCCH) with a specific format control information downlink, when a request for the indication of channel quality (CQI) indicates that triggers the aperiodic CSI message, and a new data indicator (NDI) is a first predetermined value, the index of modulation scheme and coding IMCS=29, and the bandwidth scheduled PUSCH NPRB≤4, trigger UE to send feedback aperiodic CSI message multiple component carrier; when the CQI request specifies NATO that aperiodic CSI message initiated, and NDI is the second predetermined value different from the first predetermined value of IMCS=29, and the bandwidth scheduled PUSCH NPRB≤4, trigger UE to send feedback aperiodic CSI message one component carrier.

13. The method according to item 12, in which the dynamic indication further comprises: in PDCCH with a specific format control information downlink, when the CQI request indicates that aperiodic CSI message initiated, and IMCS≠29, and the bandwidth scheduled PUSCH NPRB>4, trigger UE to send feedback aperiodic CSI message one component carrier.

14. The method according to claim 1 or 11, in which the dynamic instruction contains: PDCCH with a specific format control information downlink, when the CQI request indicates that aperiodic CSI message initiated, and NDI and/or IMCSare in a predetermined state, trigger UE to send feedback aperiodic CSI message multiple component carrier; when the CQI request indicates that aperiodic CSI message initiated, and NDI and/or IMCSare not in a predetermined state, trigger UE to send feedback aperiodic CSI message one to Portnoy carrier.

15. The method according to claim 1 or 11, in which the dynamic instruction contains: PDCCH with a specific format control information downlink, when the CQI request indicates that aperiodic CSI message initiated, the PDCCH transmitted field identification method aperiodic messages CSI, and it is used to specify and initiate the UE to transmit feedback aperiodic CSI message one or more component carriers.

16. The method according to item 15, in which, when the CQI request indicates that aperiodic CSI message is not initiated, the field identification method aperiodic messages CSI is used to specify information planning uplink communication plan PUSCH.

17. The method according to item 15, in which the identification field method aperiodic messages CSI consists of 1 bit.

18. The method according to claim 1 or 11, in which the dynamic instruction contains: PDCCH with a specific format control information downlink, when the CQI request indicates that aperiodic CSI message initiated, and PDCCH plans UE to send PUSCH at a predetermined component carrier, trigger UE to send feedback aperiodic CSI message multiple component carrier; otherwise trigger UE to send feedback aperiodic message SI one component carrier.

19. The method according to claim 1 or 11, in which the dynamic instruction contains: when planning between the bearing, in PDCCH with a specific format control information downlink, when the CQI request indicates that aperiodic CSI message initiated and carrier indicator field (CIF) is a predetermined value, trigger UE to send feedback aperiodic CSI message multiple component carrier; otherwise trigger UE to send feedback aperiodic CSI message one component carrier.

20. The method according to claim 1, in which the CSI message is aperiodic message CSI and multiple component carrier is a component carrier configured with the same mode of aperiodic messages CSI of component carriers configured or activated for this UE, or are component carriers configured with identical transmission mode downlink and identical mode aperiodic messages CSI in a component carrier configured and activated for this UE.

21. An enhanced node B (eNB, eNodeB), which is made with the opportunity to:
specify a user equipment (UE) to transmit feedback information about the channel state (CSI) one or is escolca component carrier, in which
eNB is configured to UE configuration for simultaneous transmission of the aperiodic feedback messages CSI one or more component carrier by means of a high-level alarm; or indications referred to UE simultaneously send feedback aperiodic CSI message one or more component carrier by means of dynamic instructions; or indications referred to UE simultaneously send feedback aperiodic CSI message one or more component carrier by combining the configuration of a high-level alarm with dynamic indication.

22. Node eNB according to item 21, in which
mentioned eNB is configured to indicate the UE to simultaneously transmit the feedback message to the CSI one or more component carrier in subcate.

23. Node eNB according to item 21, in which the mentioned eNB is configured to indicate the UE to simultaneously transmit the feedback message to the CSI one component carrier as follows: making the UE is unable to simultaneously transmit the feedback message CSI multiple component carrier; and
mentioned eNB is configured to indicate the UE to simultaneously transmit the feedback message CSI multiple component carrier as follows: eNB allows the UE to simultaneously transmit n the feedback message CSI multiple component carriers.

24. Node eNB according to item 21, which is mentioned several component carrier are a group of component carriers.

25. Node eNB according to item 21, which is mentioned several component carrier are a group of component carriers which are set in advance, or group of component carriers configured by a high level; or referred to multiple component carrier are a group of component carriers that meet certain pre-determined dependencies of component carriers configured or activated for the UE.

26. Node eNB according to item 21, in which the mentioned eNB additionally made with the possibility of configuring the UE for simultaneous transmission by periodic feedback messages CSI one or more component carriers through a high-level alarm.

27. Node eNB on p, in which
the CSI message is a periodic message to the CSI; and
multiple component carrier is a component carrier that is configured with the same mode of periodic messages CSI in a component carrier configured or activated for the said UE; or more component carriers are the component carriers that are configured with the same transmission mode downlink and identical to the clip frame is periodic messages CSI in the component carrier, configured or activated for this UE.

28. Node eNB according to item 21, in which
simultaneous transmission on feedback aperiodic messages CSI one component carrier refers to the fact that one team initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one component carrier in the same subcode;
simultaneous transmission on feedback aperiodic messages CSI multiple component carrier refers to the fact that one team initiation aperiodic messages CSI triggers the UE to send feedback aperiodic CSI message one or more component carrier in the same subcode; or simultaneous transmission on feedback aperiodic messages CSI multiple component carrier refers to the fact that several teams initiate aperiodic messages CSI trigger UE to send feedback aperiodic CSI message multiple component carrier in the same subcode; or simultaneous transmission on feedback aperiodic messages CSI multiple component carrier refers to the fact that one team initiation aperiodic messages CSI UE initiates transfer of feedback queue aperiodic CSI message each component was bringing the total of multiple component carrier in accordance with a certain rule in several Subhadra.

29. Node eNB according to item 21, in which the eNB is configured to:
when using a high-level alarm UE is configured for simultaneous transmission of the aperiodic feedback messages CSI one component carrier, using one command initiation to trigger UE to send feedback aperiodic CSI message one component carrier;
when using a high-level alarm UE is configured for simultaneous transmission of the aperiodic feedback messages CSI multiple component carrier, the initiating UE to simultaneously transmit feedback aperiodic CSI message one or more component carrier based on the dynamic instructions from the eNB; or,
when using a high-level alarm UE is configured with the prohibition on simultaneous transmission of feedback aperiodic messages CSI multiple component carriers using a single command initiation to trigger UE to send feedback aperiodic CSI message one component carrier;
when using a high-level alarm UE is configured to permit simultaneous transmission of feedback aperiodic messages CSI multiple component carrier, the initiating UE simultaneously lane is to give feedback aperiodic CSI message one or more component carrier based on the dynamic instructions from the eNB.

30. Node eNB according to item 21 or 29, in which the eNB is configured to perform dynamic instructions as follows: in physical control channel downlink (PDCCH) with a specific format control information downlink, when a request for the indication of channel quality (CQI) indicates that initiated the aperiodic CSI message, and a new data indicator (NDI) is equal to the first predetermined value, the index of modulation scheme and coding IMCS=29, and the bandwidth scheduled PUSCH NPRB≤4, trigger UE to send feedback aperiodic CSI message multiple component carrier; when the CQI request indicates that initiated the aperiodic CSI message, and NDI is the second predetermined value different from the first predetermined value, IMCS=29, and the bandwidth scheduled PUSCH NPRB≤4, trigger UE to send feedback aperiodic CSI message one component carrier.

31. Node eNB according to item 30, in which the eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that triggers the aperiodic CSI message, and IMCS≠29, or the bandwidth scheduled PUSCH NPRB>4, iniziare the t UE to transmit feedback aperiodic CSI message one component carrier.

32. Node eNB according to item 21 or 29, in which
eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that initiated the aperiodic CSI message, and NDI and/or IMCSare in a predetermined state, trigger UE to send feedback aperiodic CSI message multiple component carrier; when the CQI request indicates that initiated the aperiodic CSI message, and NDI and/or IMCSare not in a predetermined state, trigger UE to send feedback aperiodic CSI message one component carrier; or
eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that initiated the aperiodic CSI message, PDCCH transmitted field identification method aperiodic messages CSI and it is used to specify and initiate the UE to transmit feedback aperiodic CSI message one or more component carrier; when the CQI request indicates that aperiodic CSI message is not initiated, the field identification method aperiodic messages CSI is used to specify information and planning uplink communication plan PUSCH; or,
eNB is configured to perform dynamic instructions as follows: in a PDCCH with a specific format control information downlink, when the CQI request indicates that initiated the aperiodic CSI message, and PDCCH plans UE to send PUSCH at a predetermined component carrier, trigger UE to send feedback aperiodic CSI message multiple component carrier; otherwise trigger UE to send feedback aperiodic CSI message one component carrier; or
eNB is configured to perform dynamic instructions as follows: when planning between the bearing, in PDCCH with a specific format control information downlink, when the CQI request indicates that initiated the aperiodic CSI message and carrier indicator field (CIF) is a predetermined value, trigger UE to send feedback aperiodic CSI message multiple component carrier; otherwise trigger UE to send feedback aperiodic CSI message one component carrier.

33. Node eNB on p, in which a PDCCH with a specific format control information downlink, when the CQI request indicates that initiated the aperiodic CSI message, in the PDCCH also paranoics the field identification method aperiodic messages CSI and it is used to specify and initiate the UE to transmit feedback aperiodic CSI message one or more component carriers and field identification method aperiodic messages CSI consists of 1 bit.

34. Node eNB according to item 21, in which the CSI message is aperiodic message CSI, multiple component carrier is a component carrier configured with the same mode of aperiodic messages CSI of component carriers configured or activated for this UE, or are component carriers configured with identical transmission mode downlink and identical mode aperiodic messages CSI of component carriers configured and activated for this UE.

 

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