CN102281131B - Information configuration and feedback method in multicarrier system, system thereof and equipment thereof - Google Patents
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Abstract
The invention, which relates to the wireless communication field, discloses an information configuration and feedback method in a multicarrier system, system thereof and equipment thereof. A problem that how a terminal can obtain time resource information that can be used for feedback of nonperiodic channel quality information is solved. According to the invention, a base station configures a feedback subframe period and a subframe shift position to a terminal; the terminal detects a DCi signaling of downlink control indication at a downlink subframe and determines an uplink subframe of DCI signaling scheduling; moreover, with regard to all downlink member carrier waves on which polymerization is carried out, according to the feedback subframe period and the subframe shift position that are configured by the base station to the downlink member carrier waves, it is determined whether the uplink subframe is at the subframe shift position in the feedback subframe period; if not, a CSI of the downlink member carrier wave is feedbacked to the base station. According to the invention, in a multicarrier system, problems that how a terminal can obtain time resource information that can be used for feedback of nonperiodic channel quality information and how CSI feedback can be carried out are solved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to information configuration and feedback method, system and equipment in a kind of multicarrier system.
Background technology
In Long Term Evolution version 8 (LTE R8), system is only supported the transmission of single carrier wave, therefore terminal (UE) is also only measured the channel quality of single descending carrier, and the feedback measurement result, comprise order (RI) information, channel quality indication (CQI) information, pre-coding matrix indication (PMI) information etc.Concrete feedback can be used Physical Uplink Control Channel (PUCCH) to carry out periodic feedback, also can use Physical Uplink Shared Channel (PUSCH) to carry out non-periodic feedback.
In LTE R8, using PUSCH to carry out non-periodic channel information feedback has multiple different feedback model, and concrete CQI/PMI feedback model is defined as follows shown in table:
Wherein, under every kind of transmission mode, optional feedback model is limited, and concrete regulation is as follows, and wherein UE concrete which kind of feedback model that uses under certain transmission mode is configured by high-level signaling by base station.
The feedback model that transmission mode is corresponding:
Transmission mode 1: feedback model 2-0,3-0;
Transmission mode 2: feedback model 2-0,3-0;
Transmission mode 3: feedback model 2-0,3-0;
Transmission mode 4: feedback model 1-2,2-2,3-1;
Transmission mode 5: feedback model 3-1;
Transmission mode 6: feedback model 1-2,2-2,3-1;
Transmission mode 7: feedback model 2-0,3-0;
Here, 7 kinds of transmission modes are respectively:
Transmission mode 1: the single antenna port, used port 0;
Transmission mode 2: transmit diversity;
Transmission mode 3: Open-Loop Spatial Multiplexing;
Transmission mode 4: Closed-Loop Spatial Multiplexing;
Transmission mode 5:MU-MIMO;
Transmission mode 6: Closed-Loop Spatial Multiplexing (RANK=1);
Transmission mode 7: the single antenna port, used port 5;
In LTE R8, RI only feeds back in transmission mode 3 and 4, and during base station configuration 2 antenna port, RI is 1 bit (bits) information.For high-grade UE, the RI fed back when base station configuration 4 antenna port is 2bits information.
Subband number defined in the bit length of UE feeds back in PUSCH CQI/PMI and concrete feedback model and system etc. is relevant, the RI information in PUSCH is first understood in base station (eNB), according to corresponding form, understands CQI/PMI information according to the number of plies of RANK.
Feedback model 1-2 is the mode of " the many PMI of broadband CQI+ ", comprises broadband CQI information (each code word 4bits) and N subband PMI information of 1-2 space code word, and wherein N is the subband number in system, as shown in the table.
Feedback model 2-0 is the mode of " UE selects subband without PMI ", comprise the broadband CQI information (4bits) of a code word and the differential CQI information (2bits) that M UE of a reflection selects subband, wherein L numbers indication information for the subband from selecting M subband N subband, N is that standard code is relevant with system bandwidth with the numerical value of M, as shown in the table.
| Territory (Field) | Bit number |
| Broadband CQI code word (Wide-band CQI codeword) | 4 |
| Subband CQI difference (Subband differential CQI) | 2 |
| The position (Position of the M selected subbands) of M the subband of selecting | L |
Feedback model 2-2 be " UE select subband+many PMI " mode, the UE that wherein comprises the broadband CQI information (each 4bits) of 1-2 space code word and 1-2 space code word selects differential CQI information (each 2bits) and broadband P MI information of a subband PMI+ of subband, as shown in the table.
Feedback model 3-0 is the mode of " high-rise configuration subband is without PMI ", comprises the CQI information (4bits) in a broadband and the subband CQI information (each 2bits) of N difference, as shown in the table.
| Territory (Field) | Bit number (Bit width) |
| Broadband CQI code word (Wide-band CQI codeword) | 4 |
| The subband differential CQI | 2N |
| (Subband differential CQI) |
Feedback 3-1 is the mode of " high-rise configuration subband+mono-PMI ", comprise the broadband CQI information (each 4bits) of 1-2 space code word and N subband differential CQI information (each 2bits) and PMI information of 1-2 space code word, as shown in the table.
In PUSCH, RI information is encoded separately, CQI+PMI information is encoded separately, and answering/no answering (ACK/NACK) information is also independent coding, these ascending control informations together with upstream data carry out multiplexing, as shown in Figure 1.
Multiplexing and interweave after, carry out the mapping of upstream data symbol to physical resource, first shine upon CQI/PMI information, then in surplus resources mapping uplink data.ACK/NACK and RI information are by mapping that upstream data is punched, at frequency domain after the first time domains of four row symbols of pilot tone both sides, from the low frequency to the high frequency, place ACK/NACK, be close to the first time domains of four row symbols of ACK/NACK after frequency domain from the low frequency to the high frequency, shine upon RI information, as shown in Figure 2.
In LTE R8 system, it is that CQI request (CQI request) information by 1bit in descending control information format 0 (DCI Format 0) triggers that the aperiodic CQI/PMI/RI in PUSCH sends.UE detects this information bit in DCI format 0 and is set to 1, according to the aforementioned pre-configured relevant CQI/PMI/RI information of feedback model tissue, inserts in PUSCH and sends, otherwise do not send.
For long-term evolution upgrading (LTE-Advanced) system, for supporting the system bandwidth wider than LTE system, such as 100MHz, need to couple together use by the resource by a plurality of LTE carrier waves (claiming again member carrier), two kinds of modes are specifically arranged:
The first, carry out polymerization by a plurality of continuous LTE carrier waves, for LTE-A provides larger transmission bandwidth;
The second, carry out polymerization by a plurality of discontinuous LTE carrier waves, and for LTE-A provides larger transmission bandwidth, Fig. 3 has provided the example of discontinuous carrier aggregation.
At present the research trend of standardization body is, for the common recognition of carrier aggregation system design, be that design on each carrier wave keeps as far as possible consistent with LTE R8, thereby the terminal of assurance R8 can work on each member carrier.
LTE-A system research demand is formulated at present, the maximum polymerization of supporting 5 member carriers, and a UE maximum is supported on 5 member carriers and receives simultaneously/send data.
In the research of carrier aggregation, determined the carrier aggregation of supporting that up-downgoing is asymmetric and symmetrical.Title and asymmetrical carrier aggregation can be the system perspective configurations, namely in system, support up-downgoing symmetry or the configuration of asymmetrical carrier wave; Also can be based on UE and distribute, namely a UE is assigned to up-downgoing symmetry or the configuration of asymmetrical carrier wave.
Simultaneously, in the research of carrier aggregation, also there are some motions to propose the marriage problem between the up-downgoing carrier wave, as shown in Figure 4 A and 4 B shown in FIG., between up-link carrier and descending carrier, there is arrow to connect and mean that there is pair relationhip in both, a descending carrier can match with one or more up-link carriers, otherwise a up-link carrier also can match with one or more descending carriers.This pair relationhip can be based on system (being only to have an assembly in system to relation), also can be based on (being that different user can configure different pair relationhips) of UE.
In realizing process of the present invention, the inventor finds in prior art to exist following technical problem:
Existing LTE agreement is only supported the feedback of channel information of single carrier, under the LTE-A state of carrier aggregation, how terminal is known the time resource information that can be used for the non-periodic channel quality information feedback and then is carried out non-periodic feedback according to this information, also there is no concrete implementation at present.
Summary of the invention
The embodiment of the present invention provides information configuration and store method, system and the equipment in a kind of multicarrier system, for the terminal that solves multicarrier system, can't know the problem of the time resource information that can be used for the non-periodic channel quality information feedback.
Information configuring methods in a kind of multicarrier system, the method comprises:
Base station determine terminal carry out non-periodic channel quality information CSI feedback for downlink member carrier;
Base station is for each downlink member carrier of determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, described feedback period of sub-frame means to carry out for terminal the period of sub-frame of CSI feedback aperiodic, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame;
Base station sends the descending control indication DCI signaling of carrying out CSI feedback aperiodic in order to dispatch terminal to terminal, with indicating terminal after this DCI signaling being detected, determine the sub-frame of uplink that this DCI signaling is dispatched, and for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback, and need to send to base station to the content of base station feedback by what described sub-frame of uplink will be determined,
The base station receiving terminal is by the content of described sub-frame of uplink to base station feedback.
Configuration information store method in a kind of multicarrier system, the method comprises:
The feedback period of sub-frame for the downlink member carrier configuration that send terminal reception base station and the information of subframe deviation post; Described feedback period of sub-frame means to carry out for terminal the period of sub-frame of non-periodic channel quality information CSI feedback, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame;
Terminal is preserved the information of described feedback period of sub-frame and subframe deviation post;
Terminal detects the descending control indication DCI signaling that this terminal of scheduling of sending base station is carried out CSI feedback aperiodic on descending sub frame, determine the sub-frame of uplink that this DCI signaling is dispatched;
Terminal is for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink was arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback;
Terminal need to send to base station to the content of base station feedback by what described sub-frame of uplink will be determined.
，Gai base station, a kind of base station comprises:
The carrier wave determining unit, for determine terminal carry out non-periodic channel quality information CSI feedback for downlink member carrier;
The information configuration unit, for each downlink member carrier for determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, described feedback period of sub-frame means to carry out for terminal the period of sub-frame of CSI feedback aperiodic, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame;
The feedback trigger element, for to terminal, sending the descending control indication DCI signaling of carrying out CSI feedback aperiodic in order to dispatch terminal, with indicating terminal after this DCI signaling being detected, determine the sub-frame of uplink that this DCI signaling is dispatched, and for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback, and need to send to base station to the content of base station feedback by what described sub-frame of uplink will be determined,
Receiving terminal is by the content of described sub-frame of uplink to base station feedback.
A kind of terminal, this terminal comprises:
Information receiving unit, be used to receiving the feedback period of sub-frame for the downlink member carrier configuration that base station sends and the information of subframe deviation post; Described feedback period of sub-frame means to carry out for terminal the period of sub-frame of non-periodic channel quality information CSI feedback, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame;
The information storage unit, be used to preserving the information of described feedback period of sub-frame and subframe deviation post;
Signaling detecting unit, this terminal of scheduling of sending for base stations detected on descending sub frame carry out the descending control indication DCI signaling of CSI feedback aperiodic;
The subframe determining unit, for the sub-frame of uplink of determining that described DCI signaling is dispatched;
The content determining unit, be used for for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink was arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback;
The information feedback unit, need to send to base station to the content of base station feedback for what by described sub-frame of uplink, will determine.
A kind of multi-carrier communications systems, this system comprises:
Base station, for determine terminal carry out non-periodic channel quality information CSI feedback for downlink member carrier; For each downlink member carrier of determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, described feedback period of sub-frame means to carry out for terminal the period of sub-frame of CSI feedback aperiodic, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame; To terminal, send the descending control indication DCI signaling of carrying out CSI feedback aperiodic in order to dispatch terminal;
Terminal, be used to receiving the feedback period of sub-frame for the downlink member carrier configuration that base station sends and the information of subframe deviation post, the information of preserving described feedback period of sub-frame and subframe deviation post.
In this programme, base station determine terminal carry out CSI feedback aperiodic for downlink member carrier after, for each downlink member carrier of determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, the feedback period of sub-frame means can be used in the period of sub-frame that terminal is carried out CSI feedback aperiodic, the position of the subframe of using when the subframe deviation post means that terminal carries out in this feedback period of sub-frame that aperiodic, CSI fed back.Visible, adopt this programme, terminal can be known the subframe position that can be used for CSI feedback aperiodic according to the information of base station configuration; This terminal of scheduling of sending base station on descending sub frame, detected and carry out the DCI signaling of CSI feedback aperiodic, determine the sub-frame of uplink that this DCI signaling is dispatched; For each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink was arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback; By what described sub-frame of uplink will be determined, need to send to base station to the content of base station feedback.
The accompanying drawing explanation
Fig. 1 is ascending control information in prior art (UCI) and upstream data diplex flow schematic diagram;
Fig. 2 be in prior art ascending control information at the mapping schematic diagram of ascending physical signal resource;
Fig. 3 is carrier aggregation schematic diagram in prior art;
Fig. 4 A is the asymmetric polymerization of up-downgoing and carrier wave pairing schematic diagram in prior art;
Fig. 4 B is the symmetrical polymerization of up-downgoing and carrier wave pairing schematic diagram in prior art;
The method flow schematic diagram that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is the schematic diagram that aperiodic, CSI fed back in the embodiment of the present invention;
The system configuration schematic diagram that Fig. 7 provides for the embodiment of the present invention;
The device structure schematic diagram that Fig. 8 provides for the embodiment of the present invention;
The device structure schematic diagram that Fig. 9 provides for the embodiment of the present invention.
Embodiment
In order to realize the non-periodic feedback of channel quality information in multicarrier system (CSI), the embodiment of the present invention provides information configuration and the store method in a kind of multicarrier system, in this method, base station by the information configuration of the feedback period of sub-frame of downlink member carrier and subframe deviation post to terminal, terminal is being carried out CSI when feedback aperiodic, according to the information of base station configuration, determine the CSI of which downlink member carrier of feedback, and carry out the CSI feedback according to definite result.
Referring to Fig. 5, the information configuration in the multicarrier system that the embodiment of the present invention provides and store method specifically comprise the following steps:
Step 50: base station determine terminal carry out CSI feedback aperiodic for downlink member carrier;
Step 51: base station is for each downlink member carrier of determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, the feedback period of sub-frame expresses possibility and for terminal, carries out the period of sub-frame of CSI feedback aperiodic, the position of the subframe of using when the subframe deviation post means that terminal carries out in this feedback period of sub-frame that aperiodic, CSI fed back;
Step 52: terminal receives and preserves the feedback period of sub-frame for the downlink member carrier configuration that base station sends and the information of subframe deviation post.
After step 52, can also comprise the following steps:
Step 53: terminal detects descending control indication (DCI) signaling that this terminal of scheduling of sending base station is carried out CSI feedback aperiodic on descending sub frame;
Step 54: terminal is determined the sub-frame of uplink for uplink feedback that the DCI signaling is dispatched, concrete, terminal is according to predefined ascending-descending subframes sequential corresponding relation, determine the sub-frame of uplink that described descending sub frame is corresponding, this sub-frame of uplink is the sub-frame of uplink for uplink feedback that the DCI signaling is dispatched;
Step 55: terminal is for each downlink member carrier that carries out polymerization, according to the information of the base station of preserving for the pre-configured feedback period of sub-frame of this downlink member carrier and subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, if the CSI of this downlink member carrier being defined as need to be to the content of base station feedback;
Step 56: terminal need to send to base station to the content of base station feedback by what described sub-frame of uplink will be determined.
Concrete, in base station side:
The downlink member carrier of determining in step 50 can be all or part of downlink member carrier that terminal is supported.Base station is also for each downlink member carrier of determining, information to terminal configuration CSI aperiodic feedback model, aperiodic, the CSI feedback model meaned that terminal pins carries out the feedback content in CSI when feedback aperiodic to this downlink member carrier, i.e. the feedback model partly introduced of background technology.Base station is to the information of terminal configuration CSI aperiodic feedback model, specifically can be before the information to terminal configuration feedback period of sub-frame and subframe deviation post, also can be after the information to terminal configuration feedback period of sub-frame and subframe deviation post, can also carry out simultaneously, as long as before step 53.
Base station is after the information of terminal configuration feedback period of sub-frame and subframe deviation post in step 51, and base station can also send the DCI signaling to terminal, carries out CSI feedback aperiodic with dispatch terminal.This DCI signaling can adopt descending control indication form 0 (DCI format 0), and use channel quality indication request (CQI request) bit in this DCI signaling to come indicating terminal need to carry out the CSI feedback, for example, at CQI request bit, be 1 o'clock, the expression terminal need to be carried out the CSI feedback.Certainly, also can adopt other DCI forms to come triggering terminal to carry out CSI feedback aperiodic.
In step 51, (RRC) signaling or any other signaling can be controlled by Radio Resource in base station, to the information of terminal configuration feedback period of sub-frame and subframe deviation post.
As an instantiation, when adopting the combined coding mode to encode to the information of feedback period of sub-frame and subframe deviation post:
The cell carried in the RRC signaling (IE) is 00000 o'clock, means that the feedback period of sub-frame is 1ms, and the subframe deviation post is each subframe position;
The IE carried in the RRC signaling is 00001 o'clock, means that the feedback period of sub-frame is 2ms, and the subframe deviation post is the odd number subframe position;
The IE carried in the RRC signaling is 00010 o'clock, means that the feedback period of sub-frame is 2ms, and the subframe deviation post is the even number subframe position;
The IE carried in the RRC signaling is 00011 o'clock, means that the feedback period of sub-frame is 5ms, and the subframe deviation post is subframe 0 and the subframe 5 of each radio frames;
The IE carried in the RRC signaling is 00100 o'clock, means that the feedback period of sub-frame is 5ms, and the subframe deviation post is subframe 1 and the subframe 6 of each radio frames;
The IE carried in the RRC signaling is 00101 o'clock, means that the feedback period of sub-frame is 5ms, and the subframe deviation post is subframe 2 and the subframe 7 of each radio frames;
The IE carried in the RRC signaling is 00110 o'clock, means that the feedback period of sub-frame is 5ms, and the subframe deviation post is subframe 3 and the subframe 8 of each radio frames;
The IE carried in the RRC signaling is 00111 o'clock, means that the feedback period of sub-frame is 5ms, and the subframe deviation post is subframe 4 and the subframe 9 of each radio frames;
The IE carried in the RRC signaling is 01000 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 0 of each radio frames;
The IE carried in the RRC signaling is 01001 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 1 of each radio frames;
The IE carried in the RRC signaling is 01010 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 2 of each radio frames;
The IE carried in the RRC signaling is 01011 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 3 of each radio frames;
The IE carried in the RRC signaling is 01100 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 4 of each radio frames;
The IE carried in the RRC signaling is 01101 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 5 of each radio frames;
The IE carried in the RRC signaling is 01110 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 6 of each radio frames;
The IE carried in the RRC signaling is 01111 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 7 of each radio frames;
The IE carried in the RRC signaling is 10000 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 8 of each radio frames;
The IE carried in the RRC signaling is 10001 o'clock, means that the feedback period of sub-frame is 10ms, and the subframe deviation post is the subframe 9 of each radio frames.
In end side:
In step 53, terminal detects the DCI signaling that this terminal of scheduling is carried out CSI feedback aperiodic, and it specifically can be as follows:
Terminal detects the DCI signaling that adopts DCI format 0 on descending sub frame, check whether CQI request bit in this DCI signaling indicates and need to carry out the CSI feedback, if determine that this DCI signaling is the DCI signaling that this terminal of scheduling is carried out CSI feedback aperiodic.
In step 54, terminal is determined the sub-frame of uplink that descending sub frame is corresponding, and its specific implementation can be as follows:
If the subframe of descending sub frame is numbered n, the sub-frame of uplink that this descending sub frame is corresponding is the subframe that is numbered n+k, and k is not less than 1 integer.The value of k can be 4.
In step 55, terminal is being determined need to be to the content of base station feedback the time, can read base station for this downlink member carrier pre-configured aperiodic the CSI feedback model information, CSI corresponding to this aperiodic of CSI feedback model is defined as need to be to the content of base station feedback.
In step 56, when terminal is fed back to base station, can determine the uplink member carrier that the DCI signaling is dispatched, by the described sub-frame of uplink on this uplink member carrier, need to send to base station to the content of base station feedback by what determine.
In step 55, at terminal each downlink member carrier for polymerization, determine when described sub-frame of uplink all is not arranged in the subframe deviation post of respective feedback period of sub-frame, terminal can feed back to base station by the CSI that sends the downlink member carrier of DCI signaling, namely adopts the single carrier feedback system in LTE R8.
CSI in the present invention comprises: one or combination in any in channel quality indication (CQI) information, pre-coding matrix indication (PMI) information, order (RI) information.
Below the present invention is specifically described:
In LTE-A multicarrier system, when UE has configured while carrying out carrier aggregation, use aperiodic CQI/PMI/RI feedback to need to support multicarrier.At first base station need to be different downlink member carrier (DLCC) configuration CSI feedback model aperiodic, each CC aperiodic the CSI feedback model can be identical or different, concrete feedback model is identical with LTE R8/9.
Base station need to be dispatched UE the channel quality information of a plurality of DL CC is fed back, and the present invention provides following a kind of feedback scheme.
DL CC configuration feedback period of sub-frame and the subframe deviation post of CSI feedback aperiodic need to be carried out for each in base station, and by high-rise RRC signaled to UE.As a kind of example, base station is each DL CC configuration feedback period of sub-frame and the subframe deviation post during pre-configured DL CC gathers.For example, base station is that the feedback period of sub-frame of DL CC1 configuration is 2ms, and the subframe deviation post is every even number subframe, and can be used for carrying out the subframe of CSI feedback aperiodic be { 0,2,4,6, the 8} work song frame of every 2ms radio frames in the cycle to terminal; Simultaneously base station is that the feedback period of sub-frame of DL CC2 configuration is 2ms, and the subframe deviation post is every odd number subframe, and can be used for carrying out the subframe of CSI feedback aperiodic be { 1,3,5,7, the 9} work song frame of every 2ms radio frames in the cycle to terminal.
The tentative standard regulation has N possible feedback period of sub-frame X, and for example X may be 1ms, 2ms, 5ms, 10ms, 20ms... etc.Feedback period of sub-frame and subframe deviation post can be used the different I E indication of RRC signaling, also can the combined coding indication.Frequency Division Duplexing (FDD) (FDD) system of take is example, and for a DL CC, if N=4, feedback period of sub-frame X comprises 1ms, 2ms, 5ms, 4 kinds of situations of 10ms.If feedback period of sub-frame and subframe deviation post indicated separately, need 2bits to carry out the indication feedback period of sub-frame, with 4bits, indicate maximum 10ms all subframe deviation post in the cycle; If both combined coding indications, need
Indicate, following table is example.Notice that each DL CC has a set of independently parameter configuration, each DL CC can configure identical, also can be different.
| The signaling indication | May be for the cycle (ms) of CSI feedback | May be for the subframe deviation post of CSI feedback |
| 00000 | 1ms | Each subframe |
| 00001 | 2ms | The odd number subframe |
| 00010 | 2ms | The even number subframe |
| 00011 | 5ms | Subframe { 0, the 5} of each radio frames |
| 00100 | 5ms | Subframe { 1, the 6} of each radio frames |
| 00101 | 5ms | Subframe { 2, the 7} of each radio frames |
| 00110 | 5ms | Subframe { 3, the 8} of each radio frames |
| 00111 | 5ms | Subframe { 4, the 9} of each radio frames |
| 01000 | 10ms | The subframe 0 of each radio frames |
| 01001 | 10ms | The |
| 01010 | 10ms | The subframe 2 of each radio frames |
| 01011 | 10ms | The subframe 3 of each radio frames |
| 01100 | 10ms | The subframe 4 of each radio frames |
| 01101 | 10ms | The subframe 5 of each radio frames |
| 01110 | 10ms | The subframe 6 of each radio frames |
| 01111 | 10ms | The subframe 7 of each radio frames |
| 10000 | 10ms | The subframe 8 of each radio frames |
| 10001 | 10ms | The subframe 9 of each radio frames |
| ... | Reserved | reserved |
Base station is by the triggering of " CQI request " bit in DCI format 0 corresponding aperiodic of CSI feedback, specific practice is, DCI format 0 is arrived in UE blind check in subframe n, and check " CQI request " bit status in DCI format 0, if state is " needing the CSI feedback ", the CSI information of one or more DL CC that will in subframe n+k, this subframe need to be fed back feeds back to base station by the PUSCH of this DCI format 0 scheduling in the lump.
As shown in Figure 6, the FDD system of take is example, UE carry out aperiodic CSI feedback institute for DL CC DL CC1 and DL CC2 are arranged, base station for DL CC1 to terminal configuration following information: the feedback period of sub-frame that may feed back for CSI be 2ms, and the subframe deviation post is each even number subframe; Base station for DL CC2 to terminal configuration following information: may be 5ms for the feedback period of sub-frame of CSI feedback, the subframe deviation post be subframe { 1, the 6} of each radio frames.
If detecting in subframe 2 DCI signaling and the indication of the CQI request position in this DCI signaling of adopting DCI Format 0, UE " needs the CSI feedback ", UE determines the corresponding sub-frame of uplink 6 of subframe 2 (being 2+4), this sub-frame of uplink 6 is arranged in the even number subframe position of the feedback period of sub-frame 2ms of DL CC1, this sub-frame of uplink 6 also is arranged in the subframe 6 of the feedback period of sub-frame 5ms of DL CC2, and terminal feeds back to base station by the CSI of DL CC1 and DL CC2 in the PUSCH of DCI signaling scheduling;
If UE detects in subframe 4 DCI signaling and the indication of the CQI request position in this DCI signaling of adopting DCI Format 0 again, " need the CSI feedback ", UE determines the corresponding sub-frame of uplink 8 of subframe 4 (being 4+4), this sub-frame of uplink 8 is arranged in the even number subframe position of the feedback period of sub-frame 2ms of DL CC1, and terminal feeds back to base station by the CSI of DL CC1 in the PUSCH of DCI signaling scheduling; This sub-frame of uplink 8 is not arranged in subframe 1 and the subframe 6 of the feedback period of sub-frame 2ms of DL CC2, and terminal is not to the CSI of base station feedback DL CC2.
If subframe n+k does not have the CSI feedback chance of corresponding any one possible DL CC, rollback is the single carrier feedback model of Rel-8, and namely CQI request only triggers the CSI of feedback DCI format 0 place DL CC.
Referring to Fig. 7, the embodiment of the present invention also provides a kind of multi-carrier communications systems, and this system comprises:
Described terminal 71 also for:
This terminal of scheduling of sending base station on descending sub frame, detected and carry out the descending control indication DCI signaling of CSI feedback aperiodic, determine the sub-frame of uplink that this DCI signaling is dispatched;
For each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, if the CSI of this downlink member carrier being defined as need to be to the content of base station feedback;
By what described sub-frame of uplink will be determined, need to send to base station to the content of base station feedback.
Referring to Fig. 8, the embodiment of the present invention also provides a kind of base station, can be applied in above-mentioned multi-carrier communications systems, and this base station comprises:
Carrier wave determining unit 80, for determine terminal carry out CSI feedback aperiodic for downlink member carrier;
Described information configuration unit 81 also for:
For each downlink member carrier of determining, to the information of terminal configuration CSI aperiodic feedback model, described aperiodic, the CSI feedback model meaned that terminal pins carries out the feedback content of aperiodic during the CSI feedback to this downlink member carrier.
This base station also comprises:
Described DCI signaling adopts DCI format 0, and uses the CQI request bit indicating terminal in described DCI signaling need to carry out the CSI feedback.
Described information configuration unit 81 for:
By the RRC signaling, to the information of terminal configuration feedback period of sub-frame and subframe deviation post.
Referring to Fig. 9, the embodiment of the present invention also provides a kind of terminal, can be applied in above-mentioned multi-carrier communications systems, and this terminal comprises:
Information storage unit 91, be used to preserving the information of described feedback period of sub-frame and subframe deviation post.
This terminal also comprises:
Signaling detecting unit 92, this terminal of scheduling of sending for base stations detected on descending sub frame carry out the descending control indication DCI signaling of CSI feedback aperiodic;
Subframe determining unit 93, for the sub-frame of uplink of determining that described DCI signaling is dispatched;
Content determining unit 94, be used for for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, if the CSI of this downlink member carrier being defined as need to be to the content of base station feedback;
Information feedback unit 95, need to send to base station to the content of base station feedback for what by described sub-frame of uplink, will determine.
Described signaling detecting unit 92 for:
The DCI signaling that adopts descending control indication form DCI format 0 on descending sub frame, detected;
Check whether channel quality indication request CQI request bit in the DCI signaling detected indicates and need to carry out the CSI feedback, if determine that this DCI signaling carries out the DCI signaling of CSI feedback aperiodic for triggering this terminal.
Described subframe determining unit 93 for:
The subframe of determining described descending sub frame is numbered n, and the subframe that is numbered n+k is defined as to the sub-frame of uplink that described DCI signaling is dispatched, and k is not less than 1 integer.The value of k can be 4.
Described content determining unit 94 for:
Read base station for this downlink member carrier pre-configured aperiodic the CSI feedback model information, CSI corresponding to this aperiodic of CSI feedback model is defined as need to be to the content of base station feedback.
Described information feedback unit 95 for:
Determine the uplink member carrier that described DCI signaling is dispatched, by the described sub-frame of uplink on this uplink member carrier, need to send to base station to the content of base station feedback by what determine.
Described information feedback unit 95 also for:
At each downlink member carrier for polymerization, determine when described sub-frame of uplink all is not arranged in the subframe deviation post of respective feedback period of sub-frame, the CSI that sends the downlink member carrier of described DCI signaling is fed back to base station.
Described CSI comprises: one or combination in any in channel quality indicator CQI information, pre-coding matrix indication PMI information, order RI information.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the present invention provides, base station determine terminal carry out CSI feedback aperiodic for downlink member carrier, for each downlink member carrier of determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, terminal detects this terminal of triggering of sending base station on descending sub frame while carrying out the DCI signaling of CSI feedback aperiodic, according to predefined ascending-descending subframes corresponding relation, determine the sub-frame of uplink that described descending sub frame is corresponding, and for each downlink member carrier of self supporting, according to the information of base station for the pre-configured feedback period of sub-frame of this downlink member carrier and subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, if, the CSI of this downlink member carrier is fed back to base station.Visible, in the present invention base station by the information configuration of the feedback period of sub-frame of downlink member carrier and subframe deviation post to terminal, terminal is being carried out CSI when feedback aperiodic, according to the information of base station configuration, determine the CSI of which downlink member carrier of feedback, and carry out the CSI feedback according to definite result, adopt the present invention, realized the feedback of the CSI in the multi-carrier communications systems.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect fully.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention describes with reference to flow chart and/or the block diagram of method, equipment (system) and computer program according to the embodiment of the present invention.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction be stored in this computer-readable memory produce the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step to produce computer implemented processing, thereby in the instruction of carrying out on computer or other programmable devices, be provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (22)
1. the information configuring methods in a multicarrier system, is characterized in that, the method comprises:
Base station determine terminal carry out non-periodic channel quality information CSI feedback for downlink member carrier;
Base station is for each downlink member carrier of determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, described feedback period of sub-frame means to carry out for terminal the period of sub-frame of CSI feedback aperiodic, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame;
Base station sends the descending control indication DCI signaling of carrying out CSI feedback aperiodic in order to dispatch terminal to terminal, with indicating terminal after this DCI signaling being detected, determine the sub-frame of uplink that this DCI signaling is dispatched, and for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback, and need to send to base station to the content of base station feedback by what described sub-frame of uplink will be determined,
The base station receiving terminal is by the content of described sub-frame of uplink to base station feedback.
2. the method for claim 1, is characterized in that, the method further comprises:
Base station is for each downlink member carrier of determining, and to the information of terminal configuration CSI aperiodic feedback model, described aperiodic, the CSI feedback model meaned that terminal pins carries out the feedback content of aperiodic during the CSI feedback to this downlink member carrier.
3. the method for claim 1, is characterized in that, described DCI signaling adopts descending control indication form DCI format0, and uses the channel quality indication request CQI request bit indicating terminal in described DCI signaling need to carry out the CSI feedback.
4. as arbitrary described method in claim 1-3, it is characterized in that, base station is by the radio resource control RRC signaling, to the information of terminal configuration feedback period of sub-frame and subframe deviation post.
5. method as claimed in claim 4, is characterized in that, base station adopts the combined coding mode to encode to the information of described feedback period of sub-frame and subframe deviation post.
6. the configuration information store method in a multicarrier system, is characterized in that, the method comprises:
The feedback period of sub-frame for the downlink member carrier configuration that send terminal reception base station and the information of subframe deviation post; Described feedback period of sub-frame means to carry out for terminal the period of sub-frame of non-periodic channel quality information CSI feedback, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame;
Terminal is preserved the information of described feedback period of sub-frame and subframe deviation post;
Terminal detects the descending control indication DCI signaling that this terminal of scheduling of sending base station is carried out CSI feedback aperiodic on descending sub frame, determine the sub-frame of uplink that this DCI signaling is dispatched;
Terminal is for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink was arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback;
Terminal need to send to base station to the content of base station feedback by what described sub-frame of uplink will be determined.
7. method as claimed in claim 6, is characterized in that, described terminal detects this terminal of triggering of sending base station and carries out the DCI signaling of CSI feedback aperiodic and comprise on descending sub frame:
Terminal detects the DCI signaling that adopts descending control indication form DCI format0 on descending sub frame;
Terminal is checked whether the channel quality indication request CQI request bit in the DCI signaling detected indicates and need to be carried out the CSI feedback, when the indication of CQI request bit need to be carried out the CSI feedback, determine that this DCI signaling is the DCI signaling that this terminal of scheduling is carried out CSI feedback aperiodic.
8. method as claimed in claim 6, is characterized in that, described terminal determines that the sub-frame of uplink that this DCI signaling is dispatched comprises:
If the subframe of described descending sub frame is numbered n, determine that the sub-frame of uplink that this DCI signaling is dispatched is the subframe that is numbered n+k, k is not less than 1 integer.
9. method as claimed in claim 8, is characterized in that, the value of k is 4.
10. method as claimed in claim 6, is characterized in that, described CSI by this downlink member carrier is defined as comprising to the content of base station feedback:
Terminal obtain base station for this downlink member carrier pre-configured aperiodic the CSI feedback model information, CSI corresponding to this aperiodic of CSI feedback model is defined as need to be to the content of base station feedback.
11. method as claimed in claim 6, is characterized in that, what described terminal will be determined need to send to base station to comprise to the content of base station feedback:
Terminal is determined the uplink member carrier that described DCI signaling is dispatched, and by the described sub-frame of uplink on this uplink member carrier, need to send to base station to the content of base station feedback by what determine.
12. method as claimed in claim 6, is characterized in that, at terminal each downlink member carrier for polymerization, determines that when described sub-frame of uplink all was not arranged in the subframe deviation post of respective feedback period of sub-frame, the method further comprised:
Terminal feeds back to base station by the CSI that described sub-frame of uplink will send the downlink member carrier of described DCI signaling.
13. as arbitrary described method in claim 6-12, it is characterized in that, described CSI comprises:
One or combination in any in channel quality indicator CQI information, pre-coding matrix indication PMI information, order RI information.
14. a base station, is characterized in that, this base station comprises:
The carrier wave determining unit, for determine terminal carry out non-periodic channel quality information CSI feedback for downlink member carrier;
The information configuration unit, for each downlink member carrier for determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, described feedback period of sub-frame means to carry out for terminal the period of sub-frame of CSI feedback aperiodic, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame;
The feedback trigger element, for to terminal, sending the descending control indication DCI signaling of carrying out CSI feedback aperiodic in order to dispatch terminal, with indicating terminal after this DCI signaling being detected, determine the sub-frame of uplink that this DCI signaling is dispatched, and for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback, and need to send to base station to the content of base station feedback by what described sub-frame of uplink will be determined,
Receiving terminal is by the content of described sub-frame of uplink to base station feedback.
15. base station as claimed in claim 14, is characterized in that, described information configuration unit also for:
For each downlink member carrier of determining, to the information of terminal configuration CSI aperiodic feedback model, described aperiodic, the CSI feedback model meaned that terminal pins carries out the feedback content of aperiodic during the CSI feedback to this downlink member carrier.
16. a terminal, is characterized in that, this terminal comprises:
Information receiving unit, be used to receiving the feedback period of sub-frame for the downlink member carrier configuration that base station sends and the information of subframe deviation post; Described feedback period of sub-frame means to carry out for terminal the period of sub-frame of non-periodic channel quality information CSI feedback, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame;
The information storage unit, be used to preserving the information of described feedback period of sub-frame and subframe deviation post;
Signaling detecting unit, this terminal of scheduling of sending for base stations detected on descending sub frame carry out the descending control indication DCI signaling of CSI feedback aperiodic;
The subframe determining unit, for the sub-frame of uplink of determining that described DCI signaling is dispatched;
The content determining unit, be used for for each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink was arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback;
The information feedback unit, need to send to base station to the content of base station feedback for what by described sub-frame of uplink, will determine.
17. terminal as claimed in claim 16, is characterized in that, described signaling detecting unit is used for:
The DCI signaling that adopts descending control indication form DCI format0 on descending sub frame, detected;
Check whether channel quality indication request CQI request bit in the DCI signaling detected indicates and need to carry out the CSI feedback, when the indication of CQI request bit need to be carried out the CSI feedback, determine that this DCI signaling is to trigger the DCI signaling that this terminal is carried out CSI feedback aperiodic.
18. terminal as claimed in claim 16, is characterized in that, described subframe determining unit is used for:
The subframe of determining described descending sub frame is numbered n, and the subframe that is numbered n+k is defined as to the sub-frame of uplink that described DCI signaling is dispatched, and k is not less than 1 integer.
19. terminal as claimed in claim 16, is characterized in that, described content determining unit is used for:
Read base station for this downlink member carrier pre-configured aperiodic the CSI feedback model information, CSI corresponding to this aperiodic of CSI feedback model is defined as need to be to the content of base station feedback.
20. terminal as claimed in claim 16, is characterized in that, described information feedback unit is used for:
Determine the uplink member carrier that described DCI signaling is dispatched, by the described sub-frame of uplink on this uplink member carrier, need to send to base station to the content of base station feedback by what determine.
21. terminal as claimed in claim 16, is characterized in that, described information feedback unit also for:
At each downlink member carrier for polymerization, determine that when described sub-frame of uplink all was not arranged in the subframe deviation post of respective feedback period of sub-frame, the CSI that will send the downlink member carrier of described DCI signaling by described sub-frame of uplink fed back to base station.
22. a multi-carrier communications systems, is characterized in that, this system comprises:
Base station, for determine terminal carry out non-periodic channel quality information CSI feedback for downlink member carrier; For each downlink member carrier of determining, information to terminal configuration feedback period of sub-frame and subframe deviation post, described feedback period of sub-frame means to carry out for terminal the period of sub-frame of CSI feedback aperiodic, and described subframe deviation post means that terminal carries out the position of CSI when feedback subframe of using aperiodic in this feedback period of sub-frame; To terminal, send the descending control indication DCI signaling of carrying out CSI feedback aperiodic in order to dispatch terminal;
Terminal, be used to receiving the feedback period of sub-frame for the downlink member carrier configuration that base station sends and the information of subframe deviation post, the information of preserving described feedback period of sub-frame and subframe deviation post; This terminal of scheduling of sending base station on descending sub frame, detected and carry out the DCI signaling of CSI feedback aperiodic, determine the sub-frame of uplink that this DCI signaling is dispatched; For each downlink member carrier that carries out polymerization, according to the base station of preserving for the feedback period of sub-frame of this downlink member carrier configuration and the information of subframe deviation post, determine whether described sub-frame of uplink is arranged in this subframe deviation post of this feedback period of sub-frame, when definite described sub-frame of uplink was arranged in this subframe deviation post of this feedback period of sub-frame, the CSI of this downlink member carrier is defined as need to be to the content of base station feedback; By what described sub-frame of uplink will be determined, need to send to base station to the content of base station feedback.
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| WO2013112024A1 (en) * | 2012-01-27 | 2013-08-01 | Samsung Electronics Co., Ltd. | Reporting of multiple processes for aperiodic channel state information |
| CN110365382B (en) * | 2012-05-10 | 2022-06-21 | 中兴通讯股份有限公司 | Indication configuration method of CSI feedback signaling and base station |
| WO2014067139A1 (en) * | 2012-11-02 | 2014-05-08 | 华为技术有限公司 | Configuration and triggering method for channel state information process, base station and user equipment |
| EP2919506B1 (en) * | 2012-11-12 | 2018-08-15 | Huawei Technologies Co., Ltd. | Channel state information reporting method, user equipment and base station thereof |
| CN111954314B (en) * | 2013-08-09 | 2023-01-06 | 华为技术有限公司 | Message transmission method and device |
| CN105580420A (en) * | 2013-09-26 | 2016-05-11 | 夏普株式会社 | Subframe offset in tdd-fdd carrier aggregation |
| US9887907B2 (en) * | 2014-09-18 | 2018-02-06 | Qualcomm Incorporated | Base station initiated control mechanism for supporting supplemental link |
| WO2016127428A1 (en) * | 2015-02-15 | 2016-08-18 | 华为技术有限公司 | Carrier management method and system, base station and user equipment |
| CN106301692B (en) | 2015-05-21 | 2019-12-10 | 电信科学技术研究院 | Channel state information acquisition method and device |
| CN105471546B (en) * | 2015-07-31 | 2016-11-30 | 电信科学技术研究院 | A kind of feedback and the method and device of receiving channel state information CSI |
| WO2017028754A1 (en) * | 2015-08-17 | 2017-02-23 | 华为技术有限公司 | Carrier aggregation method and device |
| CN106559232B (en) * | 2015-09-25 | 2020-09-11 | 中兴通讯股份有限公司 | Information notification method and execution method of Channel State Information (CSI) process |
| CN107294663B (en) * | 2016-03-31 | 2020-07-21 | 展讯通信（上海）有限公司 | HARQ feedback method, device and receiving method for uplink transmission |
| CN107370562A (en) * | 2016-05-13 | 2017-11-21 | 华为技术有限公司 | The method and apparatus for transmitting Downlink Control Information |
| CN106255215B (en) * | 2016-08-05 | 2019-12-10 | 宇龙计算机通信科技(深圳)有限公司 | Communication method and communication device |
| CN108282209A (en) * | 2017-01-05 | 2018-07-13 | 华为技术有限公司 | Transmission method, the apparatus and system of channel state information |
| CN111684747B (en) * | 2018-02-09 | 2021-12-17 | 华为技术有限公司 | Method and terminal equipment for transmitting information |
| SG11202007616YA (en) | 2018-03-02 | 2020-09-29 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Wireless communication method and device |
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