CN107846267B

CN107846267B - Feedback information processing method and device for terminal

Info

Publication number: CN107846267B
Application number: CN201610829599.9A
Authority: CN
Inventors: 廖敏
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-09-18
Filing date: 2016-09-18
Publication date: 2021-03-09
Anticipated expiration: 2036-09-18
Also published as: CN107846267A

Abstract

The embodiment of the application provides a feedback information processing method of a terminal, which comprises the following steps: receiving constellation information sent by a terminal; the constellation information is generated by the feedback information of each downlink subframe of the used carrier wave of the terminal; generating a coding identifier according to the constellation information; and when the coding identifier is of a non-unique identifier type, determining scheduling information of the downlink subframe corresponding to the carrier, and determining feedback information of each downlink subframe corresponding to the carrier according to the scheduling information. In the embodiment of the application, the base station acquires the constellation information sent by the terminal and generates the coding identifier according to the constellation information. And when the coding identifier is of a non-unique identifier type, the base station acquires scheduling information of a downlink subframe corresponding to the carrier used by the terminal, and determines feedback information of each downlink subframe corresponding to the carrier according to the scheduling information. Therefore, estimation of PUCCH1BCS HARQ-ACK feedback information sent by the terminal by the base station during TDD two-carrier aggregation is improved, the base station can improve CQI correction according to the determined feedback information, and further transmission rate is improved.

Description

Feedback information processing method and device for terminal

Technical Field

The present application relates to the field of communications technologies, and in particular, to a feedback information processing method for a terminal and a feedback information processing apparatus for a terminal.

Background

In downlink Carrier Aggregation (CA), a plurality of Carrier cells cc (component Carrier) may have downlink data transmission in the same transmission Time interval tti (transmission Time interval). User equipment (ue) (user equipment) needs to use a physical Uplink Control channel (pucch) on an Uplink subframe of a primary cell (pcell) (primary cell) to perform ACK/NACK response on a physical Downlink Shared channel (pdsch) (physical Downlink Shared channel) transmitted in a Downlink subframe corresponding to a CC of all serving cells (serving cells).

In order to support carrier aggregation, an ACK/NACK feedback mode of a PUCCH is newly added in a Rel-10 system of a Long Term Evolution (LTE) (Long Term evolution) system: PUCCH format 1b with channel selection: and using the 2-bit information carried by the PUCCH format 1b and selecting one of several specific PUCCH resources to indicate the ACK/NACK information to be sent. It only supports scenarios with no more than 4 ACK/NACK bit information and no more than 2 Serving cells.

For time Division duplex tdd (time Division duplex) two-carrier aggregation, there may be 4 downlink subframes at most in the feedback window, and the two-bit constellation information b0b1 of the PUCCH format 1b may represent 4 states, each having 4 candidate PUCCH resources, and thus may represent 16 state combinations at most. However, the number of harq (hybrid Automatic Repeat request) -ACK combinations that may be fed back by the terminal UE exceeds 16, the base station ENB corresponds to a plurality of feedback information combinations according to a table look-up result of a 4-bit information index obtained by receiving processing, and cannot accurately determine an actual receiving condition of the terminal UE, which results in a channel quality indication cqi (channel quality indication) correction error and a modulation and Coding strategy mcs (modulation and Coding scheme) level that is not matched with a channel state, and has a large impact on the performance of the base station.

Disclosure of Invention

In view of the above problems, embodiments of the present application are proposed to provide a feedback information processing method of a terminal and a corresponding feedback information processing apparatus of a terminal that overcome or at least partially solve the above problems.

In order to solve the above problem, an embodiment of the present application discloses a method for processing feedback information of a terminal, including:

receiving constellation information sent by a terminal; the constellation information is generated by the feedback information of each downlink subframe of the used carrier wave of the terminal;

generating a coding identifier according to the constellation information;

and when the coding identifier is of a non-unique identifier type, determining scheduling information of a downlink subframe corresponding to the carrier, and determining feedback information of each downlink subframe corresponding to the carrier according to the scheduling information.

Preferably, the coded identifier of the non-unique identifier type corresponds to a plurality of feedback information combinations; the feedback information combination is the combination of the feedback information of each downlink subframe corresponding to the carrier;

the step of determining the scheduling information of the downlink subframe corresponding to the carrier, and determining the feedback information of each downlink subframe corresponding to the carrier according to the scheduling information, includes:

and determining the scheduling information of the downlink subframe corresponding to the carrier, and determining the feedback information of each downlink subframe corresponding to the carrier in the corresponding various feedback information combinations according to the scheduling information.

Preferably, the number of downlink subframes called by the carrier corresponding to the constellation information is 4; the non-unique identification type comprises a first non-unique identification type; the feedback information combination corresponding to the first non-unique identification type is acknowledgement information ACK, discontinuous transmission information DTX, DTX or ACK, ACK and ACK;

the step of determining the scheduling information of the downlink subframe corresponding to the carrier, and determining the feedback information of each downlink subframe corresponding to the carrier in the corresponding multiple feedback information combinations according to the scheduling information, includes:

when the coding identifier is a first non-unique identifier type, determining whether a carrier corresponding to the constellation information calls a preset number of downlink subframes;

if so, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, ACK and ACK;

and if not, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, DTX and DTX.

Preferably, the non-unique identification type comprises a second non-unique identification type; the feedback information combination corresponding to the second non-unique identification type is non-confirmation information NACK/DTX, confusion information ANY, ANY or ACK, NACK/DTX, ANY does not include ACK, DTX, DTX, DTX;

the step of determining the scheduling information of the downlink subframe corresponding to the carrier, and determining the feedback information of each downlink subframe corresponding to the carrier in the corresponding multiple feedback information combinations according to the scheduling information, further includes:

when the coding identifier is of a second non-unique identifier type, determining whether a first downlink subframe corresponding to a carrier corresponding to the constellation information is primary transmission;

if so, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as NACK/DTX, ANY and ANY;

and if not, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, NACK/DTX, ANY and ANY without including ACK, DTX, DTX and DTX.

Preferably, the method further comprises the following steps:

when a second downlink subframe, and/or a third downlink subframe, and/or a fourth downlink subframe corresponding to a carrier corresponding to the constellation information is a target downlink subframe; determining whether the code word corresponding to the target downlink subframe is initially transmitted or retransmitted; the target downlink subframe is a downlink subframe of which the corresponding feedback information is ANY;

if so, resolving the feedback information corresponding to the target downlink subframe into NACK;

and if so, resolving the feedback information corresponding to the target downlink subframe into ACK.

Preferably, the preset number is 4.

Preferably, the step of generating a coding identifier according to the constellation information includes:

determining the position of a Physical Uplink Control Channel (PUCCH) resource corresponding to the constellation information;

and generating a coding identifier according to the constellation information and the PUCCH resource position.

Preferably, the method further comprises the following steps:

and when the coding identifier is of the unique identifier type, directly adopting the coding identifier to determine the feedback information of each downlink subframe corresponding to the carrier.

Preferably, the method further comprises the following steps:

acquiring an index table corresponding to the constellation information;

determining the type of the coding identifier in the index table.

Meanwhile, the embodiment of the application also discloses a feedback information processing device of the terminal, which comprises:

the constellation information receiving module is used for receiving constellation information sent by a terminal; the constellation information is generated by the feedback information of each downlink subframe of the used carrier wave of the terminal;

the code identifier generating module is used for generating a code identifier according to the constellation information;

and the first feedback information determining module is used for determining the scheduling information of the downlink subframe corresponding to the carrier when the coding identifier is of a non-unique identifier type, and determining the feedback information of each downlink subframe corresponding to the carrier according to the scheduling information.

the first feedback information determination module includes:

and the feedback information combination determining submodule is used for determining the scheduling information of the downlink sub-frame corresponding to the carrier, and determining the feedback information of each downlink sub-frame corresponding to the carrier in the corresponding multiple feedback information combinations according to the scheduling information.

the feedback information combination determination sub-module further includes:

a first scheduling information determining unit, configured to determine whether a carrier corresponding to the constellation information calls a preset number of downlink subframes when the coding identifier is a first non-unique identifier type;

a first feedback information combination determining unit, configured to determine, if a carrier corresponding to constellation information calls a preset number of downlink subframes, feedback information combinations of the downlink subframes corresponding to the carrier corresponding to the constellation information as ACK, and ACK;

and a second feedback information combination determining unit, configured to determine, if the carrier corresponding to the constellation information does not call a preset number of downlink subframes, the feedback information combination of each downlink subframe corresponding to the carrier corresponding to the constellation information as ACK, DTX, and DTX.

the feedback information combination determination sub-module further includes:

a second scheduling information determining unit, configured to determine whether a first downlink subframe corresponding to a carrier corresponding to the constellation information is a primary transmission when the coding identifier is a second non-unique identifier type;

a third feedback information combination determining unit, configured to determine, if the first downlink subframe corresponding to the carrier corresponding to the constellation information is a primary transmission, a feedback information combination of each downlink subframe corresponding to the carrier corresponding to the constellation information as NACK/DTX, ANY, and ANY;

and a fourth feedback information combination determining unit, configured to determine, if the first downlink subframe corresponding to the carrier corresponding to the constellation information is not the initial transmission, that the feedback information combination of each downlink subframe corresponding to the carrier corresponding to the constellation information is ACK, NACK/DTX, ANY, and ANY does not include ACK, DTX, or DTX.

Preferably, the method further comprises the following steps:

a subframe scheduling information determining module, configured to determine, when a second downlink subframe, and/or a third downlink subframe, and/or a fourth downlink subframe corresponding to a carrier corresponding to the constellation information is a target downlink subframe; determining whether the code word corresponding to the target downlink subframe is initially transmitted or retransmitted; the target downlink subframe is a downlink subframe of which the corresponding feedback information is ANY;

the first feedback information analysis module is used for analyzing the feedback information corresponding to the target downlink subframe into NACK if the code word corresponding to the target downlink subframe is initially transmitted;

and the second feedback information analysis module is used for analyzing the feedback information corresponding to the target downlink subframe into ACK if the code word corresponding to the target downlink subframe is retransmitted.

Preferably, the preset number is 4.

Preferably, the code identifier generating module includes:

a resource position determining submodule, configured to determine a physical uplink control channel PUCCH resource position corresponding to the constellation information;

and the coding identifier generation submodule is used for generating a coding identifier according to the constellation information and the PUCCH resource position.

Preferably, the method further comprises the following steps:

and the second feedback information determining module is used for directly determining the feedback information of each downlink subframe corresponding to the carrier by using the coding identifier when the coding identifier is the unique identifier type.

Preferably, the method further comprises the following steps:

an index table obtaining module, configured to obtain an index table corresponding to the constellation information;

and the identification type determining module is used for determining the type of the coding identification in the index table.

The embodiment of the application has the following advantages:

in the embodiment of the application, the base station acquires the constellation information sent by the terminal and generates the coding identifier according to the constellation information. And when the coding identifier is of a non-unique identifier type, the base station acquires scheduling information of a downlink subframe corresponding to the carrier used by the terminal, and determines feedback information of each downlink subframe corresponding to the carrier according to the scheduling information. Therefore, the estimation of PUCCH1BCS HARQ-ACK feedback information sent by the terminal by the base station during TDD two-carrier aggregation is effectively improved, the base station can improve CQI correction according to the determined feedback information, and further the transmission rate is improved.

Drawings

Fig. 1 is a flowchart illustrating steps of an embodiment of a feedback information processing method of a terminal according to the present application;

fig. 2 is a block diagram of an embodiment of a feedback information processing apparatus of a terminal according to the present application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.

The PUCCH format 1b with channel selection is suitable for two-carrier aggregation, maximum 4-bit ACK/NACK feedback information is supported, and a feedback window supports maximum 4 subframes.

In the prior art, when the number of downlink subframes in a feedback window is 4 and the required feedback information is greater than 4 bits, spatial HARQ bundling is performed first; the spatial HARQ bundling refers to that two ACK/NACKs corresponding to 2 code words sent by the same downlink subframe of the same CC are subjected to logical AND (local AND) processing to obtain 1-bit ACK/NACK information.

And after the combination, if the feedback information is still larger than 4 bits, carrying out time domain combination on a plurality of ACK/NACK corresponding to different sub-frames of each carrier. The time domain combination here represents the number of consecutive correct bits. For a CC, the correct number of consecutive numbers may only be five cases, 0, 1, 2, 3, 4, so that two CCs have a combined state of 5 × 5 ═ 25. The 36.331 protocol is further divided into two subsets for the case of consecutive correct number 1: no error detection (ACK, DTX) and presence of error detection (ACK, NACK/DTX, ANY except ACK, DTX). The last two CCs yielded 6 × 6 ═ 36 combinations. The 36.331 protocol shows the combination shown in table 1.

Table 1 is a feedback information combination index table when feedback information of 4 downlink subframes needs to be fed back in a feedback window of the UE, according to the feedback information given in the 36.331 protocol.

The harq (hybrid Automatic Repeat request) feedback information may include acknowledgement information ACK (acknowledgement), non-acknowledgement information nack (negative acknowledgement), confusion information ANY, and discontinuous transmission information dtx (discontinuous transmission), where the acknowledgement information ACK indicates that the terminal has received the downlink data and can correctly analyze the downlink data; the Negative Acknowledgement (NACK) information indicates that the terminal receives the downlink data but cannot correctly analyze the downlink data; the discontinuous transmission information DTX represents that the terminal does not receive the downlink data or the base station does not transmit the downlink data; the confusion information ANY indicates that the base station cannot correctly know the receiving condition of the downlink data by the terminal, that is, cannot determine whether the information is ACK, NACK, or DTX, and further cannot determine whether to retransmit the downlink data.

When the TDD subframe ratio is 2 and PUCCH format 1b with channel selection is used for two-carrier aggregation. There are 4 downlink subframes at most in the feedback window, and two bit information b0b1 can represent 4 states, each having 4 candidate PUCCH resources (respectively, 4 candidate PUCCH resources)

) And thus can represent up to 16 state combinations. The base station feeds back information combinations in table 1 according to the 4-bit coding identifier RM Code Bits obtained by the receiving process. However, a 4-bit coded identification may correspond to a non-unique combination of feedback information. For example, when the 4-bit coding flag is 0, 1, 1, 1, the feedback information of each downlink subframe of the Primary Cell is combined into ACK, DTX or ACK, or ACK. When the 4-bit coding identifier is 0, 0, 1, the feedback information combination of each downlink subframe of the Primary Cell is NACK/DTX, ANY or (ACK, NACK/DTX, ANY), except for (ACK, DTX). Similarly, when the 4-bit code flag is 1, 1, 0, 1, the feedback information of each downlink subframe of the Secondary Cell is combined to be NACK/DTX, ANY or (ACK, NACK/DTX, ANY), except for (ACK, DTX). Thus, the existing methodsThe actual receiving condition of the terminal cannot be accurately judged.

One of the core ideas of the embodiment of the application is that when a feedback information combination corresponding to a coding identifier is not unique, a base station acquires scheduling information of a downlink subframe corresponding to a carrier used by a terminal; and determining feedback information of each downlink subframe corresponding to the carrier according to the scheduling information. Therefore, the estimation of PUCCH1BCS HARQ-ACK feedback information sent by the terminal by the base station during TDD two-carrier aggregation is effectively improved, the base station can improve CQI correction according to the determined feedback information, and further the transmission rate is improved.

Referring to fig. 1, a flowchart illustrating steps of an embodiment of a feedback information processing method of a terminal according to the present application is shown, which may specifically include the following steps:

step 101, receiving constellation information sent by a terminal; the constellation information is generated by the feedback information of each downlink subframe of the used carrier wave of the terminal;

after the base station sends each downlink subframe of a primary carrier pcc (primary carrier component) and each downlink subframe of a secondary carrier scc (secondary carrier component) to the terminal. And the waiting terminal sends feedback information aiming at each downlink subframe of the PCC and each downlink subframe of the SCC through a Physical Uplink Control Channel (PUCCH).

In the embodiment of the application, the terminal adopts 2-bit constellation information carried by the PUCCH format 1b and selects one of several specific PUCCH resource positions to indicate the feedback information to be sent. For example, the terminal has

In the 4 candidate PUCCH resource positions, the terminal may select one of the 4 candidate PUCCH resource positions to transmit 2-bit constellation information.

102, generating a coding identifier according to the constellation information;

the specific step 102 may include the following sub-steps:

substep S11, determining a physical uplink control channel PUCCH resource position corresponding to the constellation information;

and a substep S12, generating a coding identifier according to the constellation information and the PUCCH resource position.

And the base station determines the PUCCH resource position adopted by the terminal for sending the 2-bit constellation information. And the terminal can determine the coding identification according to the 2-bit constellation information and the PUCCH resource position. For example, when the constellation is new to 1, 1, the PUCCH resource position is set to

The code is identified as 1, 1, 1, 1.

And 103, when the coding identifier is of a non-unique identifier type, determining scheduling information of a downlink subframe corresponding to the carrier, and determining feedback information of each downlink subframe corresponding to the carrier according to the scheduling information.

In the embodiment of the application, the coded identifier of the non-unique identifier type corresponds to a plurality of feedback information combinations; the feedback information combination is the combination of the feedback information of each downlink subframe corresponding to the carrier;

the step 103 may comprise the following sub-steps:

and a substep S21, determining scheduling information of the downlink subframe corresponding to the carrier, and determining feedback information of each downlink subframe corresponding to the carrier in a corresponding plurality of feedback information combinations according to the scheduling information.

Which code identifications are non-unique identification types can be set at the base station. For example, as shown in table 1, when the code identification is 0, 1, 1, 1, the feedback information combination of the PCC is non-unique. The base station can set the coded identifiers 0, 1, 1, 1 as non-unique identifier types.

When the coding identifiers correspond to non-unique feedback information combinations, the base station determines the scheduling information of the downlink sub-frames corresponding to each carrier in a Media Access Control (MAC) layer. Which feedback information combination is further determined according to the scheduling information.

In the embodiment of the application, the base station acquires the constellation information sent by the terminal and generates the coding identifier according to the constellation information. When the coding identifier is a non-unique identifier type, the base station acquires scheduling information of a downlink subframe corresponding to a carrier used by the terminal; and determining feedback information of each downlink subframe corresponding to the carrier according to the scheduling information. Therefore, the estimation of PUCCH1BCS HARQ-ACK feedback information sent by the terminal by the base station during TDD two-carrier aggregation is effectively improved, the base station can improve CQI correction according to the determined feedback information, and further the transmission rate is improved.

In the embodiment of the present application, the type of the coded identifier may specifically be generated through the following steps:

acquiring an index table corresponding to the constellation information;

determining the type of the coding identifier in the index table.

The constellation information is generated by the terminal aiming at the feedback information of each downlink subframe of the used carrier wave, and when the constellation information aims at different numbers of downlink subframes, the corresponding index tables are different. For example, when the constellation information is for 4 downlink subframes, according to the 36.331 protocol, table 1 needs to be obtained as an index table. In the index table, the type of the code identification is determined.

The type of the coded identification includes a unique identification type in addition to a non-unique identification type.

In this embodiment of the present application, when the coding identifier is of a unique identifier type, the coding identifier is directly used to determine the feedback information of each downlink subframe corresponding to the carrier.

The unique identification type refers to a type that the coded identification has a unique corresponding feedback information combination. For example, when the coding flag is 1, 1, it can be known from looking up table 1 that the feedback information combination of the primary cell is only ACK, NACK/DTX; the feedback information combination of the secondary cell is only ACK, ACK, ACK, NACK/DTX.

As can be seen from table 1, there are at most two feedback information combinations for each possible candidate for a single CC. Following separate resolution of PCC and SCC are shown in tables 2 and 3 below:

TABLE 2

TABLE 3

As can be seen from tables 2 and 3, for the PCC and SCC, there are only two cases where the coded identity has two feedback information combinations. The first is that the feedback information combination is ACK, DTX or ACK, ACK; the second is that the feedback information is combined into NACK/DTX, ANY or ACK, NACK/DTX, ANY does not include ACK, DTX, DTX.

It should be particularly noted that the feedback information combinations ACK, NACK/DTX, ANY, and ANY actually correspond to a plurality of feedback information combinations, wherein the second feedback information may be NACK or DTX, and the third feedback information may be ACK, NACK, or DTX; the fourth feedback information may be ACK or NACK or DTX. But the feedback information combination does not include ACK, DTX case.

Therefore, in the embodiment of the present application, the feedback information is combined into an encoding identifier of ACK, DTX, or ACK, or ACK, and is set as the first non-unique identifier type.

In an embodiment of the present application, the sub-step S21 may further include:

During carrier aggregation, the PCC and the SCC belong to two different MACs, and the base station may determine scheduling information of the PCC and the SCC in the MAC layer. When the code identifier is a first non-unique identifier type, the scheduling information that the base station needs to determine is: and determining whether the carrier calls a preset number of downlink subframes.

Specifically, the first non-unique identification type is for feedback information combinations of 4 downlink subframes of the carrier. But in practice not all carriers employ 4 downlink subframes.

The constellation information sent by the terminal determines the number of downlink subframes to be fed back by the constellation information according to the maximum number of subframes called in all the adopted carriers. For example, the PCC actually calls 4 downlink subframes, while the SCC calls only two downlink subframes. The terminal transmits feedback information for a maximum number of subframes 4. In this embodiment, the preset number may be 4. For example, when the base station determines that the PCC invokes 4 downlink subframes, the feedback information combination for the PCC is determined to be ACK, and ACK. When the base station determines that the SCC calls 2 downlink subframes, the feedback information combination for the SCC is determined to be ACK, DTX.

In the embodiment of the application, when the feedback information combination corresponding to the coding identifier is ACK, DTX or ACK, it is determined whether the carrier corresponding to the constellation information calls the preset number of downlink subframes; if so, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, ACK and ACK; if not, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, DTX and DTX, thereby uniquely determining the feedback information combination of the terminal.

As shown in table 4, a feedback information index table for PCC in the embodiment of the present application is shown.

TABLE 4

Here, the Selection Flag is represented by two-bit information (b1b 0). b1 indicates whether the first subframe scheduled by the CC is the initial transmission, and b0 indicates whether the CC schedules the full 4 subframes.

"/" indicates that the selection flag has no information. Because for the unique coding identification type, the corresponding feedback information combination can be directly determined according to the coding identification, and therefore, a selection identification does not need to be set for the coding identification.

The b1b0 information of 2bit has 4 combinations, 00, 01, 10 and 11. A b1b0 value of 00 indicates that the first subframe scheduled by the PCC is not an initial transmission, and the PCC does not call for the full 4 subframes. b1b0 is 01, which means that the first subframe scheduled by the PCC is not for initial transmission, and the PCC calls for 4 full subframes. b1b0 is 10, which means that the first subframe scheduled by the PCC is the initial transmission, and the PCC does not call for the full 4 subframes. b1b0 is 11, which means that the first subframe scheduled by the PCC is the initial transmission, and the PCC calls for 4 full subframes.

"√" indicates a selected b1b0 combination. Two b1b0 combinations in each row in table 4 are selected because the base station only determines whether the first subframe is the first transmission or whether the full 4 subframes are scheduled.

In the embodiment of the application, the base station determines the 4-bit coding identifier according to the 2-bit constellation information and the resource position. And determining a 2-bit selection identifier according to the MAC layer scheduling information. The base station may search a feedback information combination for the downlink subframe of the PCC in table 4 according to the coding identifier and the selection identifier.

In the embodiment of the application, the feedback information is combined into NACK/DTX, ANY or ACK, NACK/DTX, ANY excluding ACK, DTX, and the coding identifier of DTX, which is set as the second non-unique identifier type.

In this embodiment, the sub-step S21 may further include:

When the code identifier is a second non-unique identifier type, the scheduling information that the base station needs to determine is: and determining whether the first downlink subframe corresponding to the carrier is the initial transmission. For example, PCC invokes 4 downlink subframes; and if the first downlink subframe is initial transmission, determining the feedback information combination aiming at the PCC as NACK/DTX, ANY and ANY. For another example, the SCC invokes 2 downlink subframes, where the first downlink subframe is not an initial transmission, and then determines that the feedback information combination for the SCC includes ACK, NACK/DTX, ANY, and ANY, but does not include ACK, DTX, and DTX.

In the embodiment of the application, when the feedback information combination corresponding to the coding identifier is NACK/DTX, ANY or ACK, NACK/DTX, ANY does not include ACK, DTX, DTX; determining whether a first downlink subframe corresponding to a carrier wave corresponding to the constellation information is primarily transmitted; if so, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as NACK/DTX, ANY and ANY; and if not, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, NACK/DTX, ANY and ANY, thereby uniquely determining the feedback information combination of the terminal.

As shown in table 5, a feedback information index table for SCC in the embodiment of the present application is provided.

TABLE 5

The Selection Flag in table 5 is the same as that in table 4, and is not described in detail here.

In the embodiment of the application, the base station determines the 4-bit coding identifier according to the 2-bit constellation information and the resource position. And determining a 2-bit selection identifier according to the MAC layer scheduling information. The base station may search a feedback information combination for the downlink subframe of the SCC in table 5 according to the coding identifier and the selection identifier.

As mentioned above, in the prior art, multiple ACKs/NACKs corresponding to different subframes of each carrier are combined in the time domain. Time domain combining is performed due to multiple ACK/NACKs. The HARQ-ACK feedback information after the first NACK is inferable. In the 36.331 protocol, this feedback information is defined as ANY.

In the embodiment of the present application, a further explanation method is provided for a case where the feedback information is ANY, specifically:

For example, when the feedback information for PCC is combined NACK/DTX, ANY. And the base station determines the scheduling condition of each downlink subframe in an MAC layer, and if the code words of the second downlink subframe and the third downlink subframe are transmitted initially, the code word of the fourth downlink subframe is retransmitted. Then the feedback information for the second downlink subframe and the third downlink subframe is resolved as NACK and the feedback information for the fourth downlink subframe is resolved as ACK.

The code word is generated by performing channel coding on data in the downlink subframe. Thus, the codeword may represent data in a downlink subframe. By judging whether the code word is initially transmitted or retransmitted, whether the data is initially transmitted or retransmitted can be judged.

In the embodiment of the application, when the feedback information of the corresponding second downlink subframe, and/or third downlink subframe, and/or fourth downlink subframe in the feedback information combination is ANY, the base station determines whether the codeword corresponding to the downlink subframe of which the feedback information is ANY is initially transmitted or retransmitted; if the transmission is primary, the feedback information is analyzed into NACK; and if the retransmission is carried out, resolving the feedback information into ACK. Thereby more accurately resolving the feedback information.

In order to enable a person skilled in the art to better understand the embodiments of the present invention, the following description is given by way of an example:

(1) and the base station receives constellation information sent by the terminal, wherein the constellation information is generated by the feedback information of each downlink subframe of the used carrier wave of the terminal.

(2) And determining the position of the physical uplink control channel PUCCH resource corresponding to the constellation information.

(3) And determining the maximum number of subframes corresponding to the constellation information.

(4) And when the maximum subframe number is a preset number, acquiring a corresponding preset index table. Wherein the preset number is 4.

(5) And generating a coding identifier according to the constellation information and the PUCCH resource position.

(6) Determining the type of the coding identifier in an index table; the type of the coded identification comprises: a unique identification type; a first non-unique identification type; a second non-unique identification type; the unique identification type represents that each downlink subframe corresponding to the carrier wave corresponding to the constellation information has a unique feedback information combination; the first non-unique identification type represents that the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information is ACK, DTX or ACK, ACK and ACK; the second non-unique identification type indicates that the feedback information combination of each downlink subframe corresponding to the carrier corresponding to the constellation information is NACK/DTX, ANY or ACK, NACK/DTX, ANY does not include ACK, DTX, DTX.

(7) And if the type of the unique identifier is the unique identifier type, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information from the index table according to the coding identifier.

(8) If the first non-unique identification type exists, determining whether the carrier corresponding to the constellation information calls a preset number of downlink subframes or not; if so, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, ACK and ACK; and if not, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, DTX and DTX.

(9) If the first non-unique identification type is the second non-unique identification type, determining whether a first downlink subframe corresponding to a carrier wave corresponding to the constellation information is primary transmission; if so, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as NACK/DTX, ANY and ANY; and if not, determining the feedback information combination of each downlink subframe corresponding to the carrier wave corresponding to the constellation information as ACK, NACK/DTX, ANY and ANY without including ACK, DTX, DTX and DTX.

(10) When a second downlink subframe, and/or a third downlink subframe, and/or a fourth downlink subframe corresponding to a carrier corresponding to the constellation information is a target downlink subframe; determining whether a code word aimed at by a target downlink subframe is initially transmitted or retransmitted; the target downlink subframe is a downlink subframe of which the corresponding feedback information is ANY; if so, resolving the feedback information corresponding to the target downlink subframe into NACK; and if so, resolving the feedback information corresponding to the target downlink subframe into ACK.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the embodiments. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no particular act is required of the embodiments of the application.

Referring to fig. 2, a block diagram of a feedback information processing apparatus of a terminal according to an embodiment of the present application is shown, and specifically, the apparatus may include the following modules:

a constellation information receiving module 201, configured to receive constellation information sent by a terminal; the constellation information is generated by the feedback information of each downlink subframe of the used carrier wave of the terminal;

a code identifier generating module 202, configured to generate a code identifier according to the constellation information;

a first feedback information determining module 203, configured to determine, when the coding identifier is a non-unique identifier type, scheduling information of a downlink subframe corresponding to the carrier, and determine, according to the scheduling information, feedback information of each downlink subframe corresponding to the carrier.

the first feedback information determination module 203 may include:

In the embodiment of the present application, the number of downlink subframes called by the carrier corresponding to the constellation information is 4; the non-unique identification type comprises a first non-unique identification type; the feedback information combination corresponding to the first non-unique identification type is ACK, DTX or ACK, ACK;

the feedback information combination determination sub-module may further include:

In an embodiment of the present application, the non-unique identification type includes a second non-unique identification type; the feedback information combination corresponding to the second non-unique identification type is NACK/DTX, ANY or ACK, NACK/DTX, ANY does not include ACK, DTX, DTX;

In this embodiment, the apparatus may further include:

In the embodiment of the present application, the preset number is 4.

In this embodiment of the application, the code identifier generating module 202 may include:

In this embodiment, the apparatus may further include:

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The foregoing describes in detail a feedback information processing method of a terminal and a feedback information processing apparatus of a terminal provided in the present application, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the foregoing embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A feedback information processing method of a terminal is characterized by comprising the following steps:

generating a coding identifier according to the constellation information;

when the coding identifier is of a non-unique identifier type, determining scheduling information of a downlink subframe corresponding to the carrier, and determining feedback information of each downlink subframe corresponding to the carrier according to the scheduling information;

wherein the step of generating a code identifier according to the constellation information comprises:

generating a coding identifier according to the constellation information and the PUCCH resource position;

the method further comprises the following steps:

when the coding identification is of the unique identification type, directly adopting the coding identification to determine the feedback information of each downlink subframe corresponding to the carrier;

the coding identification of the non-unique identification type corresponds to various feedback information combinations; the feedback information combination is the combination of the feedback information of each downlink subframe corresponding to the carrier;

determining scheduling information of downlink subframes corresponding to the carriers, and determining feedback information of each downlink subframe corresponding to the carriers in corresponding various feedback information combinations according to the scheduling information;

the method further comprises the following steps:

determining a corresponding selection identifier according to the scheduling information of the downlink subframe corresponding to the carrier; the selection identifier is used for determining whether a first downlink subframe scheduled by the carrier is initially transmitted and/or whether the carrier calls a preset number of downlink subframes;

and determining the feedback information combination of each downlink subframe corresponding to the carrier according to the selection identifier and the coding identifier.

2. The method according to claim 1, wherein the number of downlink subframes called by the carrier corresponding to the constellation information is 4; the non-unique identification type comprises a first non-unique identification type; the feedback information combination corresponding to the first non-unique identification type is acknowledgement information ACK, discontinuous transmission information DTX, DTX or ACK, ACK and ACK;

3. The method of claim 2, wherein the non-unique identification type comprises a second non-unique identification type; the feedback information combination corresponding to the second non-unique identification type is non-confirmation information NACK/DTX, confusion information ANY, ANY or ACK, NACK/DTX, ANY does not include ACK, DTX, DTX, DTX;

4. The method of claim 3, further comprising:

5. The method of claim 3, wherein the predetermined number is 4.

6. The method of claim 1, further comprising:

acquiring an index table corresponding to the constellation information;

determining the type of the coding identifier in the index table.

7. A feedback information processing apparatus of a terminal, comprising:

a first feedback information determining module, configured to determine scheduling information of a downlink subframe corresponding to the carrier when the coding identifier is a non-unique identifier type, and determine feedback information of each downlink subframe corresponding to the carrier according to the scheduling information;

wherein the code identifier generation module comprises:

the coding identifier generation submodule is used for generating a coding identifier according to the constellation information and the PUCCH resource position;

the device further comprises:

a second feedback information determining module, configured to directly determine, by using the coding identifier, feedback information of each downlink subframe corresponding to the carrier when the coding identifier is of the unique identifier type;

the first feedback information determination module includes:

a feedback information combination determining submodule, configured to determine scheduling information of a downlink subframe corresponding to the carrier, and determine, according to the scheduling information, feedback information of each downlink subframe corresponding to the carrier in a corresponding multiple feedback information combinations;

the device is also used for determining a corresponding selection identifier according to the scheduling information of the downlink subframe corresponding to the carrier; the selection identifier is used for determining whether a first downlink subframe scheduled by the carrier is initially transmitted and/or whether the carrier calls a preset number of downlink subframes; and determining the feedback information combination of each downlink subframe corresponding to the carrier according to the selection identifier and the coding identifier.

8. The apparatus according to claim 7, wherein the number of downlink subframes called by the carrier corresponding to the constellation information is 4; the non-unique identification type comprises a first non-unique identification type; the feedback information combination corresponding to the first non-unique identification type is acknowledgement information ACK, discontinuous transmission information DTX, DTX or ACK, ACK and ACK;

the feedback information combination determination sub-module further includes:

9. The apparatus of claim 8, wherein the non-unique identification type comprises a second non-unique identification type; the feedback information combination corresponding to the second non-unique identification type is non-confirmation information NACK/DTX, confusion information ANY, ANY or ACK, NACK/DTX, ANY does not include ACK, DTX, DTX, DTX;

the feedback information combination determination sub-module further includes:

10. The apparatus of claim 9, further comprising:

11. The apparatus of claim 9, wherein the predetermined number is 4.

12. The apparatus of claim 7, further comprising: