RU2473176C1 - Method and device for signal coding, method for coding of combined feedback signal - Google Patents

Abstract

FIELD: information technologies.

SUBSTANCE: method of signal coding involves the following stages. When two carriers are configured with multiple inputs and outputs (MIMO), signals of hybrid automatic repeat query acknowledgement (HARQ-ACK) of two carriers are combined into a combined feedback signal. The combined feedback signal is converted into a code word in compliance with the previously set ratio of conversion between signals and code words.

EFFECT: by means of the method for combination and coding of feedback signals of two carriers for transfer along a code channel in the double-cell mode, frequency of binary errors and costs for detection error are reduced, inefficient power consumption is saved, and system cubic metrics value is not affected, thus increasing efficiency of the system.

11 cl, 3 dwg, 76 tbl

Description

FIELD OF THE INVENTION

The invention relates to the field of communication technology, and more particularly to a method of encoding a signal, a device for encoding a signal, and a method for encoding a combined feedback signal.

BACKGROUND OF THE INVENTION

During the Hybrid Automatic Repeat Request (HARQ) process, the user equipment (UE) monitors the High Speed Shared Control Channel (HS-SCCH). If no data is received, then the UE does not perform any action, which can be considered as the fact that the UE does not send information to the base station (Node B). In this case, the Node B considers that the feedback information is discontinuous transmission information (DTX). If data is received, data on the high speed downlink shared channel (HS-DSCH) is detected in accordance with the control channel information. If the received data is correct, acknowledgment information (ACK) is sent to Node B. If the received data is incorrect, then No acknowledgment information (NACK) is sent to Node B. The DTX, ACK, NACK information is generally referred to as Hybrid Automatic Repeat Request Acknowledgment Information (HARQ-ACK). The information sent is encoded and sent to Node B on the High Speed Dedicated Physical Uplink Control Channel (HS-DPCCH). Node B receives and decodes feedback information. If the feedback information is ACK, then new data is sent. If the feedback information is NACK, then the data is retransmitted. If the feedback information is DTX, then new data is resubmitted.

In Dual Carrier (Dual Cell) -High Speed Downlink Packet Access (DC-HSDPA) technology, if multiple downlink carriers use two HS-DPCCH channels for feedback, there is a case where power is limited, which affects the area coverings. In order to save energy resources when the UE is not configured with many inputs and outputs (MIMOs), a possible technical solution is that two carriers in a double carrier use only one HS-DPCCH to transmit feedback information. Thus, it is necessary to perform combined coding on the feedback information on two carriers (cells). The coding consists of converting the various combined HARQ-ACK signals into a 0-1 10-bit sequence.

Version 5 (R5) of Technical Specification (TS) 25.212 of the Third Generation Partnership Project Protocol (3GPP) provides a single-carrier encoding scheme configured without MIMO. In this case, you need to return only three signals: ACK, NACK and DTX. ACK and NACK must use a codeword, as shown in Table 1-1:

Table 1-1
Single-carrier HARQ-ACK coding scheme configured without MIMO ACK one one one one one one one one one one Nack 0 0 0 0 0 0 0 0 0 0

In version 6 (R6) TS25.212 in the 3GPP protocol, the preamble sending (PRE) and conclusion (POST) mode is introduced to reduce the transmit power of the UE, so two new PRE and POST signals are introduced and the code words of the two signals are additionally used in version 7 (R7) and version 8 (R8).

3GPP version R7 TS25.212 provides a single-carrier encoding scheme configured with MIMO. The circuit includes a single stream mode and a dual stream mode in which it is necessary to return three signals and five signals, respectively. The signals returned in single stream mode are ACK, NACK, and DTX. The dual stream mode includes stream 1 and stream 2, and the returned signals can be represented as "feedback signal stream 1 _ feedback signal stream 2". In particular, the signals returned in the dual stream mode may be ACK_ACK, ACK_NACK, NACK_ACK, NACK_NACK and DTX. Where DTX represents that the feedback signals from stream 1 and stream 2 are DTX. In addition to DTX, the feedback circuitry requires only six codewords. When PRE / POST send mode is applied, PRE / POST is the same as in R6 version, as shown in table 1-2.

Table 1-2
Single-carrier HARQ-ACK encoding scheme configured with MIMO Single stream mode (1 transmission unit) ACK one one one one one one one one one one Nack 0 0 0 0 0 0 0 0 0 0 Dual stream mode (2 transmission units) Feedback signal stream 1 Stream 2 Feedback ACK ACK one 0 one 0 one one one one 0 one ACK Nack one one 0 one 0 one 0 one one one Nack ACK 0 one one one one 0 one 0 one one Nack Nack one 0 0 one 0 0 one 0 0 0 PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

3GPP version R8 TS25.212 provides a dual-carrier coding scheme configured without MIMO. The circuit needs to return 9 signals, and 8 codewords are needed (DTX does not need to use any codeword). When PRE / POST send mode is applied, PRE / POST is the same as in R6 version, as shown in table 1-3:

Table 1-3
HARQ-ACK coding scheme for dual carrier configured without MIMO The UE only detects data blocks on the primary carrier. ACK one one one one one one one one one one Nack 0 0 0 0 0 0 0 0 0 0 The UE only detects data blocks on the secondary carrier. ACK one one one one one 0 0 0 0 0 Nack 0 0 0 0 0 one one one one one The UE detects data blocks on two carriers simultaneously. Primary Carrier Feedback Secondary Carrier Feedback ACK ACK one 0 one 0 one 0 one 0 one 0 ACK Nack one one 0 0 one one 0 0 one one Nack ACK 0 0 one one 0 0 one one 0 0 Nack Nack 0 one 0 one 0 one 0 one 0 one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

Research has not yet begun on the technology of combining DC-HSDPA with MIMO (DC-MIMO), and through research of the prior art, the inventor has found that if the prior art is used to solve the DC-MIMO problem, the most direct way is to use two code channels, with each carrier using a code channel, and then an encoding scheme is applied to each carrier, which is shown in Table 1-2. This method must consume too much power, which is configured to return HARQ-ACK signals. Typically, the energy consumed is twice that consumed by a single carrier, and the cubic metric (CM) of the system increases, which affects the performance of the system.

SUMMARY OF THE INVENTION

Embodiments of the present invention are directed to methods for encoding combined feedback signals of two carriers and providing feedback on a code channel in DC-MIMO mode.

In an embodiment of the present invention, a signal encoding method is provided, which includes the following steps.

When two carriers are configured with MIMO, the HARQ-ACK signals of the two carriers are combined into a combined feedback signal.

According to a predetermined conversion relationship between signals and codewords, the combined feedback signal is converted to a codeword.

In an embodiment of the present invention, a signal encoding device is provided that includes a synthesis module for a combined feedback signal and an encoder module.

The combined feedback signal synthesis module is configured to combine the HARQ-ACK signals of two carriers into a combined feedback signal when two carriers are configured with MIMO.

The encoder module is configured to convert the combined feedback signal into a codeword in accordance with a predetermined conversion ratio between the signals and codewords.

In an embodiment of the present invention, a method for encoding a combined feedback signal is provided, which includes the following steps.

A codebook structure satisfying a certain code distance relationship, or its equivalent codebook structure, is selected for each send mode, and the combined feedback signals are encoded in each send mode.

The send mode includes, in particular, a single stream-DTX, DTX-single stream, double stream-DTX, DTX-double stream, single stream-single stream, double stream-single stream, single stream-double stream and double stream- double stream.

A type of codebook structure corresponding to a single stream-DTX or DTX-single stream send mode includes A-B or 2A. The codewords included in the codebook structure are A1 and B1 or A1 and A2, respectively.

The type of codebook structure corresponding to the dual-DTX or DTX-dual stream send mode includes 4A, or 3A-C, or 2A-2C, or A-B-2C, or A-B-C-D. The code words included in the codebook structure are A1, A2, A3, A4; or A1, A2, A3, C1; or A1, A2, C1, C2; or A1, B1, C1, C2; or A1, B1, C1, D1, respectively.

A type of codebook structure corresponding to a single stream-single stream sending mode includes 2A-2B-2C-2D, or AB-5C-D, or 2A-2B-4C, or AB-6C, or 2A-6C, or 4A-4C. The code words included in the codebook structure are A1, A2, B1, B2, C1, C2, D1, D2; or A1, B1, C1, C2, C3, C4, C5, D1; or A1, A2, B1, B2, C1, C2, C3, C4; or A1, B1, C1, C2, C3, C4, C5, C6; or A1, A2, C1, C2, C3, C4, C5, C6; or A1, A2, A3, A4, C1, C2, C3, C4, respectively.

The type of codebook structure corresponding to the dual-stream-single-stream or single-stream-double-stream send mode includes 6A-2B-6C, or 6A-B-6C-D, or 6A-3C-3D-EF, or 4A- 4B-3C-3D, or 4A-3B-6C-D, or {A1, A2, A5, A6} U2B-3C-3D-EF, or 6A-2B-2C-DU {D3 ~ D5}. The code words included in the codebook structure are A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5, C6; or A1, A2, A3, A4, A5, A6, B1, C1, C2, C3, C4, C5, C6, D1; or A1, A2, A3, A4, A5, A6, C1, C2, C3, D1, D2, D3, E1, F1; or A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, D1, D2, D3; or A1, A2, A3, A4, B1, B2, B3, C1, C2, C3, C4, C5, C6, D1; or A1, A2, A5, A6, B1, B2, C1, C2, C3, D1, D2, D3, E1, F1; or A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, D1, D3, D4, D5, respectively.

The type of codebook structure corresponding to the dual stream-dual stream sending mode includes 6A-6B-6C-6D. The code words included in the codebook structure are A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1, C2, C3, C4, C5, C6, D1, D2, D3, D4, D5 and D6. Alternatively, the type of codebook structure corresponding to the dual-stream-dual-stream sending mode further includes a codebook structure formed from 24 codewords arbitrarily selected from 16G-16H.

The code distance relationships between all codewords defined above are shown in Tables 1-4 to 1-9:

Table 1-4 A1 A2 A3 A4 A5 A6 B1 B2 B3 B4 B5 B6 A1 0 6 6 6 6 6 10 four four four four four A2 6 0 6 6 6 6 four 10 four four four four A3 6 6 0 6 6 6 four four 10 four four four A4 6 6 6 0 6 6 four four four 10 four four A5 6 6 6 6 0 6 four four four four 10 four A6 6 6 6 6 6 0 four four four four four 10 B1 10 four four four four four 0 6 6 6 6 6 B2 four 10 four four four four 6 0 6 6 6 6 B3 four four 10 four four four 6 6 0 6 6 6 B4 four four four 10 four four 6 6 6 0 6 6 B5 four four four four 10 four 6 6 6 6 0 6 B6 four four four four four 10 6 6 6 6 6 0 C1 5 5 5 5 5 5 5 5 5 5 5 5 C2 5 5 5 5 5 5 5 5 5 5 5 5 C3 5 5 5 5 5 5 5 5 5 5 5 5 C4 5 5 5 5 5 5 5 5 5 5 5 5 C5 5 5 5 5 5 5 5 5 5 5 5 5 C6 5 5 5 5 5 5 5 5 5 5 5 5 D1 5 5 5 5 5 5 5 5 5 5 5 5 D2 5 5 5 5 5 5 5 5 5 5 5 5 D3 5 5 5 5 5 5 5 5 5 5 5 5 D4 5 5 5 5 5 5 5 5 5 5 5 5 D5 5 5 5 5 5 5 5 5 5 5 5 5 D6 5 5 5 5 5 5 5 5 5 5 5 5

Table 1-5 C1 C2 C3 C4 C5 C6 D1 D2 D3 D4 D5 D6 A1 5 5 5 5 5 5 5 5 5 5 5 5 A2 5 5 5 5 5 5 5 5 5 5 5 5 A3 5 5 5 5 5 5 5 5 5 5 5 5 A4 5 5 5 5 5 5 5 5 5 5 5 5 A5 5 5 5 5 5 5 5 5 5 5 5 5 A6 5 5 5 5 5 5 5 5 5 5 5 5 B1 5 5 5 5 5 5 5 5 5 5 5 5 B2 5 5 5 5 5 5 5 5 5 5 5 5 B3 5 5 5 5 5 5 5 5 5 5 5 5 B4 5 5 5 5 5 5 5 5 5 5 5 5 B5 5 5 5 5 5 5 5 5 5 5 5 5 B6 5 5 5 5 5 5 5 5 5 5 5 5 C1 0 6 6 6 6 6 10 four four four four four C2 6 0 6 6 6 6 four 10 four four four four C3 6 6 0 6 6 6 four four 10 four four four C4 6 6 6 0 6 6 four four four 10 four four C5 6 6 6 6 0 6 four four four four 10 four C6 6 6 6 6 6 0 four four four four four 10 D1 10 four four four four four 0 6 6 6 6 6 D2 four 10 four four four four 6 0 6 6 6 6 D3 four four 10 four four four 6 6 0 6 6 6 D4 four four four 10 four four 6 6 6 0 6 6 D5 four four four four 10 four 6 6 6 6 0 6 D6 four four four four four 10 6 6 6 6 6 0

Table 1-6 A1 A2 A3 A4 A5 A6 C1 C2 C3 D1 D2 D3 E1 F1 E1 6 6 6 four four four 5 5 5 5 5 5 - 10 F1 four four four 6 6 6 5 5 5 5 5 5 10 -

Table 1-7 G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G1 0 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 G2 6 0 6 6 6 6 6 6 6 6 four four four four four four G3 6 6 0 6 6 6 6 four four four 6 four 6 four 6 four G4 6 6 6 0 6 6 four 6 four four 6 four four 6 four 6 G5 6 6 6 6 0 6 four four 6 four four 6 6 four four 6 G6 6 6 6 6 6 0 four four four 6 four 6 four 6 6 four G7 6 6 6 four four four 0 6 6 6 6 four 6 four 6 four G8 6 6 four 6 four four 6 0 6 6 6 four four 6 four 6 G9 6 6 four four 6 four 6 6 0 6 four 6 6 four four 6 G10 6 6 four four four 6 6 6 6 0 four 6 four 6 6 four G11 6 four 6 6 four four 6 6 four four 0 four 6 6 6 6 G12 6 four four four 6 6 four four 6 6 four 0 6 6 6 6 G13 6 four 6 four 6 four 6 four 6 four 6 6 0 four 6 6 G14 6 four four 6 four 6 four 6 four 6 6 6 four 0 6 6 G15 6 four 6 four four 6 6 four four 6 6 6 6 6 0 four G16 6 four four 6 6 four four 6 6 four 6 6 6 6 four 0

Table 1-8 H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H1 0 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 H2 6 0 6 6 6 6 6 6 6 6 four four four four four four H3 6 6 0 6 6 6 6 four four four 6 four 6 four 6 four H4 6 6 6 0 6 6 four 6 four four 6 four four 6 four 6 H5 6 6 6 6 0 6 four four 6 four four 6 6 four four 6 H6 6 6 6 6 6 0 four four four 6 four 6 four 6 6 four H7 6 6 6 four four four 0 6 6 6 6 four 6 four 6 four H8 6 6 four 6 four four 6 0 6 6 6 four four 6 four 6 H9 6 6 four four 6 four 6 6 0 6 four 6 6 four four 6 H10 6 6 four four four 6 6 6 6 0 four 6 four 6 6 four H11 6 four 6 6 four four 6 6 four four 0 four 6 6 6 6 H12 6 four four four 6 6 four four 6 6 four 0 6 6 6 6 H13 6 four 6 four 6 four 6 four 6 four 6 6 0 four 6 6 H14 6 four four 6 four 6 four 6 four 6 6 6 four 0 6 6 H15 6 four 6 four four 6 6 four four 6 6 6 6 6 0 four H16 6 four four 6 6 four four 6 6 four 6 6 6 6 four 0

Table 1-9 H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 G1 10 four four four four four four four four four four four four four four four G2 four 10 four four four four four four four four 6 6 6 6 6 6 G3 four four 10 four four four four 6 6 6 four 6 four 6 four 6 G4 four four four 10 four four 6 four 6 6 four 6 6 four 6 four G5 four four four four 10 four 6 6 four 6 6 four four 6 6 four G6 four four four four four 10 6 6 6 four 6 four 6 four four 6 G7 four four four 6 6 6 10 four four four four 6 four 6 four 6 G8 four four 6 four 6 6 four 10 four four four 6 6 four 6 four G9 four four 6 6 four 6 four four 10 four 6 four four 6 6 four G10 four four 6 6 6 four four four four 10 6 four 6 four four 6 G11 four 6 four four 6 6 four four 6 6 10 6 four four four four G12 four 6 6 6 four four 6 6 four four 6 10 four four four four G13 four 6 four 6 four 6 four 6 four 6 four four 10 6 four four G14 four 6 6 four 6 four 6 four 6 four four four 6 10 four four G15 four 6 four 6 6 four four 6 6 four four four four four 10 6 G16 four 6 6 four four 6 6 four four 6 four four four four 6 10

The values in Tables 1-4 to 1-9 are the code distances between the corresponding codewords.

In one embodiment, when X _ij represents the combined feedback signal, the primary carrier feedback signal in the combined feedback signal is the signal corresponding to number i, and the secondary carrier feedback signal in the combined feedback signal is the signal corresponding to number j, where 0≤i≤6, 0≤j≤6, and the signals corresponding to numbers 0-6 are DTX, acknowledgment (ACK), negative acknowledgment (NACK), ACK_ACK, ACK_NACK, NACK_ACK and NACK_NACK in the sequence.

When the code words contained in the codebook structure corresponding to the single stream-single stream sending mode are A1, A2, B1, B2, C1, C2, D1 and D2, the combined feedback signals X ₁₁ , X ₁₂ , X ₁₀ , X ₂₁ , X ₂₂ , X ₂₀ , X ₀₁ and X ₀₂ are encoded in D2, B2, A1, A2, C2, B1, C1 and D1, respectively.

When the codewords contained in the codebook structure corresponding to the single stream-single stream sending mode are A1, B1, C1, C2, C3, C4, C5 and D1, the combined feedback signals X ₁₁ , X ₁₂ , X ₁₀ , X ₂₁ , X ₂₂ , X ₂₀ , X ₀₁ and X ₀₂ are encoded in C2, C3, A1, C4, C5, B1, C1 and D1, respectively.

When the codewords contained in the codebook structure corresponding to the single stream-single stream sending mode are A1, A2, B1, B2, C1, C2, C3 and C4, the combined feedback signals X ₁₁ , X ₁₂ , X ₁₀ , X ₂₁ , X ₂₂ , X ₂₀ , X ₀₁ and X ₀₂ are encoded in C1, C2, A1, C3, C4, B1, A2 and B2, respectively.

In another embodiment of the present invention, when the codewords contained in the codebook structure corresponding to the single-dual-stream sending mode are A1, A2, A3, A4, A5, A6, C1, C2, C3, D1, D2, D3 , E1 and F1, combined feedback signals X ₁₀ , X ₁₃ , X ₁₄ , X ₁₅ , X ₁₆ , X ₂₀ , X ₂₃ , X ₂₄ , X ₂₅ , X ₂₆ , X ₀₃ , X ₀₄ , X ₀₅ and X ₀₆ encoded in E1, A3, C1, C2, A4, F1, C3, D2, D1, D3, A1, A2, A5 and A6, respectively.

When the codewords contained in the codebook structure corresponding to the single stream-dual stream sending mode are A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6, the combined signals The feedbacks X ₁₀ , X ₁₃ , X ₁₄ , X ₁₅ , X ₁₆ , X ₂₀ , X ₂₃ , X ₂₄ , X ₂₅ , X ₂₆ , X ₀₃ , X ₀₄ , X ₀₅ and X ₀₆ are encoded in A1, C1, C2 , C3, A3, B1, C4, C5, C6, B2, A2, A4, A5 and A6, respectively.

When the codewords contained in the codebook structure corresponding to the single stream-dual stream sending mode are A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6, the combined signals The feedbacks X ₁₀ , X ₁₃ , X ₁₄ , X ₁₅ , X ₁₆ , X ₂₀ , X ₂₃ , X ₂₄ , X ₂₅ , X ₂₆ , X ₀₃ , X ₀₄ , X _05, and X ₀₆ are encoded in A1, C5, A2 , A3, C6, B1, A4, A5, A6, B2, C1, C2, C3 and C4, respectively.

When the codewords contained in the codebook structure corresponding to the single stream-dual stream sending mode are A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, D1, D3, D4 and D5, the combined signals The feedbacks X ₁₀ , X ₁₃ , X ₁₄ , X ₁₅ , X ₁₆ , X ₂₀ , X ₂₃ , X ₂₄ , X ₂₅ , X ₂₆ , X ₀₃ , X ₀₄ , X _05, and X ₀₆ are encoded in C1, D3, D4 , D5, C2, D1, B2, A5, A6, B1, A1, A2, A3 and A4, respectively.

In yet another embodiment of the present invention, when the codewords contained in the codebook structure corresponding to the dual stream-single stream sending mode are A1, A2, A3, A4, A5, A6, C1, C2, C3, D1, D2, D3, E1 and F1, combined feedback signals X ₀₁ , X ₀₂ , X ₃₁ , X ₃₂ , X ₃₀ , X ₄₁ , X ₄₂ , X ₄₀ , X ₅₁ , X ₅₂ , X ₅₀ , X ₆₁ , X ₆₂ and X ₆₀ are encoded in E1, F1, A3, C3, A1, C1, D2, A2, C2, D1, A5, A4, D3 and A6, respectively.

When the codewords contained in the codebook structure corresponding to the dual-stream-single-stream sending mode are A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6, the combined signals Feedback X ₀₁ , X ₀₂ , X ₃₁ , X ₃₂ , X ₃₀ , X ₄₁ , X ₄₂ , X ₄₀ , X ₅₁ , X ₅₂ , X ₅₀ , X ₆₁ , X ₆₂ and X ₆₀ are encoded in A1, B1, C1 , C4, A2, C2, C5, A4, C3, C6, A5, A3, B2 and A6, respectively.

When the code words contained in the codebook structure corresponding to the dual-stream-single-stream sending mode are A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6, the combined signals Feedback X ₀₁ , X ₀₂ , X ₃₁ , X ₃₂ , X ₃₀ , X ₄₁ , X ₄₂ , X ₄₀ , X ₅₁ , X ₅₂ , X ₅₀ , X ₆₁ , X ₆₂ and X ₆₀ are encoded in A1, B1, C5 , A4, C1, A2, A5, C2, A3, A6, C3, C6, B2 and C4, respectively.

When the codewords contained in the codebook structure corresponding to the dual-stream-single-stream sending mode are A1, A2, A5, A6, B1, B2, C1, C2, C3, D1, D2, D3, E1 and F1, the combined signals Feedback X ₀₁ , X ₀₂ , X ₃₁ , X ₃₂ , X ₃₀ , X ₄₁ , X ₄₂ , X ₄₀ , X ₅₁ , X ₅₂ , X ₅₀ , X ₆₁ , X ₆₂ and X ₆₀ are encoded in E1, F1, B2 , C3, A1, C1, D2, A2, C2, D1, A5, D3, B1 and A6, respectively.

When the codewords contained in the codebook structure corresponding to the dual stream-single stream sending mode are A1, A2, A3, A4, B1, B2, B3, C1, C2, C3, C4, C5, C6 and D1, the combined signals Feedback X ₀₁ , X ₀₂ , X ₃₁ , X ₃₂ , X ₃₀ , X ₄₁ , X ₄₂ , X ₄₀ , X ₅₁ , X ₅₂ , X ₅₀ , X ₆₁ , X ₆₂ and X ₆₀ are encoded in D1, C1, C2 , B2, A1, C3, B3, A2, C4, C6, A3, C5, B1 and A4, respectively.

In yet another embodiment of the present invention, when the codewords contained in the codebook structure corresponding to the dual stream-dual stream sending mode are A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1, C2, C3, C4, C5, C6, D1, D2, D3, D4, D5 and D6, combined feedback signals X ₀₃ , X ₀₄ , X ₀₅ , X ₀₆ , X ₃₀ , X ₃₃ , X ₃₄ , X ₃₅ , X ₃₆ , X ₄₀ , X ₄₃ , X ₄₄ , X ₄₅ , X ₄₆ , X ₅₀ , X ₅₃ , X ₅₄ , X ₅₅ , X ₅₆ , X ₆₀ , X ₆₃ , X ₆₄ , X ₆₅ and X ₆₆ are encoded in C1, C2, C3, C4, A1, B4, B5, B6, D1, A2, D5, D3, B3, C6, A3, D6, B2, D2, C5, A4, B1, A6, A5 and D4 respectively, or combined feedback signals X ₀₃ , X ₀₄ , X ₀₅ , X ₀₆ , X ₃₀ , X ₃₃ , X ₃₄ , X ₃₅ , X ₃₆ , X ₄₀ , X ₄₃ , X ₄₄ , X ₄₅ , X ₄₆ , X ₅₀ , X ₅₃ , X ₅₄ , X ₅₅ , X ₅₆ , X ₆₀ , X ₆₃ , X ₆₄ , X _65, and X ₆₆ are encoded in B1, B2, B3, B4, A1, D4 , B5, D2, D1, A2, A5, D3, B6, C6, A3, D6, A6, C3, C5, A4, D5, C2, C1 and C4, respectively.

When the codewords contained in the codebook structure corresponding to the dual stream-dual stream sending mode are G7, G8, G9, G10, G11, G12, G13, G14, G15, G16, H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15 and H16, combined feedback signals X ₀₃ , X ₀₄ , X ₀₅ , X ₀₆ , X ₃₀ , X ₃₃ , X ₃₄ , X ₃₅ , X ₃₆ , X ₄₀ , X ₄₃ , X ₄₄ , X ₄₅ , X ₄₆ , X ₅₀ , X ₅₃ , X ₅₄ , X ₅₅ , X ₅₆ , X ₆₀ , X ₆₃ , X ₆₄ , X _65, and X ₆₆ are encoded in G12 , G13, G14, H4, H1, G7, G8, G9, G10, H2, G11, G14, G16, H3, H7, H5, H6, H11, H12, H8, H13, H14, H15 and H16, respectively.

In addition, the codebook structure corresponding to the single stream-DTX sending mode is a subset of the intersection between the codebook structure corresponding to the single stream-single stream sending mode and the codebook structure corresponding to the single stream-double stream sending mode; the codebook structure corresponding to the DTX-single stream send mode is a subset of the intersection between the codebook structure corresponding to the single stream-single stream send mode and the codebook structure corresponding to the double stream-single stream send mode; the codebook structure corresponding to the dual stream-DTX send mode is a subset of the intersection between the codebook structure corresponding to the dual stream-single stream send mode and the codebook structure corresponding to the dual stream-dual stream send mode; and the codebook structure corresponding to the DTX-dual stream sending mode is a subset of the intersection between the codebook structure corresponding to the single stream-dual stream sending mode and the codebook structure corresponding to the dual stream-double stream sending mode.

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook howl book corresponding to the single-stream-single-stream sending mode is 2A-2B-2C-2D, the type of codebook structure of the codebook structure corresponding to the double-stream-single stream sending mode is 6A-3C-3D-EF, the type of structure the codebook structure of the codebook corresponding to the single stream-dual stream sending mode is 6A-3C-3D-EF and the type of codebook structure of the codebook structure corresponding to the single stream-dual stream sending mode is 6A-6B-6C- 6D, conversion ratio between integer nennymi feedback signals and code words to encode them shown in Table 2-7:

Table 2-7 D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ one one one one one 0 0 one 0 0 D / AN X ₀₄ one one one 0 0 one one 0 one 0 D / NA X ₀₅ 0 0 one one 0 one 0 0 0 one D / nn X ₀₆ 0 one 0 0 0 0 one one 0 one A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one 0 one 0 one 0 one 0 one 0 A / n X ₁₂ one one 0 0 one one 0 0 one one A / AA X ₁₃ 0 0 0 one one 0 one 0 one 0 A / AN X ₁₄ one 0 one 0 one 0 one 0 0 one A / NA X ₁₅ one one 0 one 0 0 0 0 one one A / nn X ₁₆ one 0 0 0 one one 0 one one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 0 one one 0 0 one one 0 0 N / N X ₂₂ 0 one 0 one 0 one 0 one 0 one N / aa X ₂₃ one 0 0 one 0 one one one 0 0 N / AN X ₂₄ 0 0 one 0 one one one one 0 0 N / NA X ₂₅ 0 one 0 one 0 one 0 one one 0 N / NN X ₂₆ 0 one one 0 one 0 0 0 one one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 0 0 0 one one 0 0 one 0 AA / N X ₃₂ 0 one 0 one one one one one 0 0 AA / AA X ₃₃ one 0 one one one one 0 0 one 0 AA / AN X ₃₄ one 0 one one 0 0 one one one one AA / NA X ₃₅ one one 0 one one one one 0 0 one AA / NN X ₃₆ 0 0 0 0 0 one one 0 one one AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one one 0 0 one one 0 one 0 AN / N X ₄₂ one one 0 0 one 0 one one one 0 AN / AA X ₄₃ one one one 0 0 0 0 0 0 one AN / AN X ₄₄ one one 0 0 one 0 one one one 0 AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ one 0 0 0 one 0 0 0 one one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 one one 0 one 0 0 0 one NA / N X ₅₂ 0 0 0 one one 0 0 one 0 one NA / AA X ₅₃ 0 one one one 0 one one one 0 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ 0 0 0 one one 0 0 one 0 one NA / NN X ₅₆ 0 0 0 one one one one one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 one one 0 0 0 0 one 0 0 NN / N X ₆₂ one 0 one 0 0 0 0 0 one one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 0 0 one one 0 NN / NA X ₆₅ 0 one 0 0 one one 0 0 0 0 NN / NN X ₆₆ 0 one one 0 one one 0 one one one

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook howl, corresponding to the single-stream-single-stream sending mode, is 2A-2B-2C-2D, the codebook structure type of the codebook structure corresponding to the double-stream-single-stream sending mode is 6A-2B-6C, type of codebook structure the codebook structure corresponding to the single stream-dual stream sending mode is 6A-2B-6C and the type of codebook structure corresponding to the single stream-double stream sending mode is 6A-6B-6C-6D, the conversion ratio between united bubbled feedback signals and code words to encode them shown in Table 2-8:

Table 2-8 D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ one one 0 0 0 one one 0 0 0 D / AN X ₀₄ one 0 0 one 0 0 0 0 one one D / NA X ₀₅ 0 one 0 0 one 0 0 one one 0 D / nn X ₀₆ 0 0 one 0 one one 0 0 0 one A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one 0 one 0 one 0 one 0 one 0 A / n X ₁₂ one one 0 0 one one 0 0 one one A / AA X ₁₃ one one one one one 0 0 0 0 0 A / AN X ₁₄ 0 one 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 one one 0 0 0 one 0 one one A / nn X ₁₆ 0 0 one one 0 0 one one 0 0 N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 0 one one 0 0 one one 0 0 N / N X ₂₂ 0 one 0 one 0 one 0 one 0 one N / aa X ₂₃ one 0 one 0 0 one 0 one one 0 N / AN X ₂₄ 0 0 0 one one one one 0 one 0 N / NA X ₂₅ one 0 0 0 one 0 one one 0 one N / NN X ₂₆ 0 0 one one one 0 0 one one one AA / D X ₃₀ 0 one one 0 0 0 one 0 one one AA / A X ₃₁ one one one one one one one one one one AA / N X ₃₂ one 0 0 one 0 0 0 0 one one AA / AA X ₃₃ 0 one one one 0 one 0 0 one 0 AA / AN X ₃₄ 0 0 0 0 0 one one one one one AA / NA X ₃₅ one 0 one 0 one 0 one 0 one 0 AA / NN X ₃₆ 0 0 one one one 0 0 one one one AN / D X ₄₀ one 0 one 0 0 one 0 one one 0 AN / A X ₄₁ 0 0 one one 0 0 one one 0 0 AN / N X ₄₂ 0 one 0 0 one 0 0 one one 0 AN / AA X ₄₃ 0 0 0 0 0 0 0 0 0 0 AN / AN X ₄₄ one 0 one one 0 one one 0 0 one AN / NA X ₄₅ one one one 0 0 0 0 one 0 one AN / NN X ₄₆ 0 0 one one 0 0 one one 0 0 NA / D X ₅₀ 0 0 0 one one one one 0 one 0 NA / A X ₅₁ one one 0 0 0 one one 0 0 0 NA / N X ₅₂ 0 0 one 0 one one 0 0 0 one NA / AA X ₅₃ one one 0 0 one one 0 0 one one NA / AN X ₅₄ 0 one 0 one one 0 one 0 0 one NA / NA X ₅₅ 0 one one 0 one one one one 0 0 NA / NN X ₅₆ one one one one one one one one one one NN / D X ₆₀ one 0 0 0 one 0 one one 0 one NN / A X ₆₁ 0 one 0 one 0 one 0 one 0 one NN / N X ₆₂ one 0 0 one one one 0 one 0 0 NN / AA X ₆₃ one 0 0 one one one 0 one 0 0 NN / AN X ₆₄ 0 one 0 one 0 one 0 one 0 one NN / NA X ₆₅ one one one one one 0 0 0 0 0 NN / NN X ₆₆ one one 0 one 0 0 one one one 0

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook howl, corresponding to the single-stream-single-stream sending mode, is AB-5C-D, the type of codebook structure of the codebook structure corresponding to the double-stream-single-stream sending mode is 6A-2B-6C, type of codebook structure in the structure the codebook corresponding to the single stream-dual stream sending mode is 6A-2B-6C and the type of codebook structure of the codebook corresponding to the dual stream-double stream sending mode is 6A-6B-6C-6D, the conversion ratio between the combined feedback signals and codewords for their encoding are shown in Table 2-9:

Table 2-9 D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ one one 0 0 0 one one 0 0 0 D / AN X ₀₄ one 0 0 one 0 0 0 0 one one D / NA X ₀₅ 0 one 0 0 one 0 0 one one 0 D / nn X ₀₆ 0 0 one 0 one one 0 0 0 one A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ 0 one 0 one 0 one 0 one 0 one A / n X ₁₂ 0 one one 0 0 0 one 0 one one A / AA X ₁₃ one one one one one 0 0 0 0 0 A / AN X ₁₄ 0 one 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 one one 0 0 0 one 0 one one A / nn X ₁₆ 0 0 one one 0 0 one one 0 0 N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 one 0 0 one 0 one one 0 N / N X ₂₂ 0 0 0 one one one one 0 one 0 N / aa X ₂₃ one 0 one 0 0 one 0 one one 0 N / AN X ₂₄ 0 0 0 one one one one 0 one 0 N / NA X ₂₅ one 0 0 0 one 0 one one 0 one N / NN X ₂₆ 0 0 one one one 0 0 one one one AA / D X ₃₀ 0 one one 0 0 0 one 0 one one AA / A X ₃₁ one one one one one one one one one one AA / N X ₃₂ one 0 0 one 0 0 0 0 one one AA / AA X ₃₃ 0 one one one 0 one 0 0 one 0 AA / AN X ₃₄ 0 0 0 0 0 one one one one one AA / NA X ₃₅ one 0 one 0 one 0 one 0 one 0 AA / NN X ₃₆ 0 0 one one one 0 0 one one one AN / D X ₄₀ one 0 one 0 0 one 0 one one 0 AN / A X ₄₁ 0 0 one one 0 0 one one 0 0 AN / N X ₄₂ 0 one 0 0 one 0 0 one one 0 AN / AA X ₄₃ 0 0 0 0 0 0 0 0 0 0 AN / AN X ₄₄ one 0 one one 0 one one 0 0 one AN / NA X ₄₅ one one one 0 0 0 0 one 0 one AN / NN X ₄₆ 0 0 one one 0 0 one one 0 0 NA / D X ₅₀ 0 0 0 one one one one 0 one 0 NA / A X ₅₁ one one 0 0 0 one one 0 0 0 NA / N X ₅₂ 0 0 one 0 one one 0 0 0 one NA / AA X ₅₃ one one 0 0 one one 0 0 one one NA / AN X ₅₄ 0 one 0 one one 0 one 0 0 one NA / NA X ₅₅ 0 one one 0 one one one one 0 0 NA / NN X ₅₆ one one one one one one one one one one NN / D X ₆₀ one 0 0 0 one 0 one one 0 one NN / A X ₆₁ 0 one 0 one 0 one 0 one 0 one NN / N X ₆₂ one 0 0 one one one 0 one 0 0 NN / AA X ₆₃ one 0 0 one one one 0 one 0 0 NN / AN X ₆₄ 0 one 0 one 0 one 0 one 0 one NN / NA X ₆₅ one one one one one 0 0 0 0 0 NN / NN X ₆₆ one one 0 one 0 0 one one one 0

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook howl, corresponding to the single-stream-single-stream sending mode, is 2A-2B-4C, the type of codebook structure of the codebook structure corresponding to the double-stream-single-stream sending mode is 6A-2B-6C, type of codebook structure of the codebook structure books corresponding to the single-stream-double-stream sending mode is 6A-2B-6C, and the codebook structure type of the codebook corresponding to the double-stream-dual-stream sending mode is 6A-6B-6C-6D, the conversion ratio between the combined and feedback signals and code words to encode them shown in Table 2-10 and Table 2-11:

Table 2-10 D / a X ₀₁ 0 0 one one 0 0 one one 0 0 D / n X ₀₂ one one 0 0 one one 0 0 one one D / AA X ₀₃ one one 0 0 0 one one 0 0 0 D / AN X ₀₄ one 0 0 one 0 0 0 0 one one D / NA X ₀₅ 0 one 0 0 one 0 0 one one 0 D / nn X ₀₆ 0 0 one 0 one one 0 0 0 one A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one one one one one 0 0 0 0 0 A / n X ₁₂ 0 one 0 one 0 one 0 one 0 one A / AA X ₁₃ one one one one one 0 0 0 0 0 A / AN X ₁₄ 0 one 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 one one 0 0 0 one 0 one one A / nn X ₁₆ 0 0 one one 0 0 one one 0 0 N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 one one 0 0 0 one 0 one one N / N X ₂₂ one 0 one 0 0 one 0 one one 0 N / aa X ₂₃ one 0 one 0 0 one 0 one one 0 N / AN X ₂₄ 0 0 0 one one one one 0 one 0 N / NA X ₂₅ one 0 0 0 one 0 one one 0 one N / NN X ₂₆ 0 0 one one one 0 0 one one one AA / D X ₃₀ 0 one one 0 0 0 one 0 one one AA / A X ₃₁ one one one one one 0 0 0 0 0 AA / N X ₃₂ one 0 0 one 0 0 0 0 one one AA / AA X ₃₃ 0 one one one 0 one 0 0 one 0 AA / AN X ₃₄ 0 0 0 0 0 one one one one one AA / NA X ₃₅ one 0 one 0 one 0 one 0 one 0 AA / NN X ₃₆ 0 0 one one one 0 0 one one one AN / D X ₄₀ one 0 one 0 0 one 0 one one 0 AN / A X ₄₁ one one one one one one one one one one AN / N X ₄₂ 0 one 0 0 one 0 0 one one 0 AN / AA X ₄₃ 0 0 0 0 0 0 0 0 0 0 AN / AN X ₄₄ one 0 one one 0 one one 0 0 one AN / NA X ₄₅ one one one 0 0 0 0 one 0 one AN / NN X ₄₆ 0 0 one one 0 0 one one 0 0 NA / D X ₅₀ 0 0 0 one one one one 0 one 0 NA / A X ₅₁ one one 0 0 0 one one 0 0 0 NA / N X ₅₂ 0 0 one 0 one one 0 0 0 one NA / AA X ₅₃ one one 0 0 one one 0 0 one one NA / AN X ₅₄ 0 one 0 one one 0 one 0 0 one NA / NA X ₅₅ 0 one one 0 one one one one 0 0 NA / NN X ₅₆ one one one one one one one one one one NN / D X ₆₀ one 0 0 0 one 0 one one 0 one NN / A X ₆₁ 0 one 0 one 0 one 0 one 0 one NN / N X ₆₂ 0 0 0 0 0 0 0 0 0 0 NN / AA X ₆₃ one 0 0 one one one 0 one 0 0 NN / AN X ₆₄ 0 one 0 one 0 one 0 one 0 one NN / NA X ₆₅ one one one one one 0 0 0 0 0 NN / NN X ₆₆ one one 0 one 0 0 one one one 0

Table 2-11 D / a X ₀₁ 0 0 one one 0 0 one one 0 0 D / n X ₀₂ one one 0 0 one one 0 0 one one D / AA X ₀₃ 0 0 0 0 0 one one one one one D / AN X ₀₄ one 0 one 0 one 0 one 0 one 0 D / NA X ₀₅ one 0 0 one one one 0 one 0 0 D / nn X ₀₆ 0 one 0 one one 0 one 0 0 one A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one one one one one 0 0 0 0 0 A / n X ₁₂ 0 one 0 one 0 one 0 one 0 one A / AA X ₁₃ one one one 0 0 0 0 one 0 one A / AN X ₁₄ 0 0 one one 0 0 one one 0 0 A / NA X ₁₅ one one 0 0 0 one one 0 0 0 A / nn X ₁₆ 0 one one one 0 one 0 0 one 0 N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 one one 0 0 0 one 0 one one N / N X ₂₂ one 0 one 0 0 one 0 one one 0 N / aa X ₂₃ one 0 0 one 0 0 0 0 one one N / AN X ₂₄ 0 one 0 0 one 0 0 one one 0 N / NA X ₂₅ 0 0 one 0 one one 0 0 0 one N / NN X ₂₆ one one 0 0 one one 0 0 one one AA / D X ₃₀ one one one one one 0 0 0 0 0 AA / A X ₃₁ 0 0 0 one one one one 0 one 0 AA / N X ₃₂ one 0 0 one 0 0 0 0 one one AA / AA X ₃₃ 0 one one 0 one one one one 0 0 AA / AN X ₃₄ one one one 0 0 0 0 one 0 one AA / NA X ₃₅ one one 0 0 one one 0 0 one one AA / NN X ₃₆ 0 0 0 0 0 0 0 0 0 0 AN / D X ₄₀ 0 one 0 one 0 one 0 one 0 one AN / A X ₄₁ one one one one one one one one one one AN / N X ₄₂ 0 one 0 0 one 0 0 one one 0 AN / AA X ₄₃ 0 0 0 one one one one 0 one 0 AN / AN X ₄₄ 0 0 one one one 0 0 one one one AN / NA X ₄₅ 0 one one one 0 one 0 0 one 0 AN / NN X ₄₆ 0 0 one 0 one one 0 0 0 one NA / D X ₅₀ 0 one one 0 0 0 one 0 one one NA / A X ₅₁ one one 0 0 0 one one 0 0 0 NA / N X ₅₂ 0 0 one 0 one one 0 0 0 one NA / AA X ₅₃ one one 0 one 0 0 one one one 0 NA / AN X ₅₄ one 0 0 0 one 0 one one 0 one NA / NA X ₅₅ one one 0 0 0 one one 0 0 0 NA / NN X ₅₆ 0 one 0 0 one 0 0 one one 0 NN / D X ₆₀ one 0 one 0 0 one 0 one one 0 NN / A X ₆₁ one 0 0 0 one 0 one one 0 one NN / N X ₆₂ 0 0 0 0 0 0 0 0 0 0 NN / AA X ₆₃ one 0 one one 0 one one 0 0 one NN / AN X ₆₄ 0 0 one one 0 0 one one 0 0 NN / NA X ₆₅ one one one one one one one one one one NN / NN X ₆₆ one 0 0 one 0 0 0 0 one one

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook the howl book corresponding to the single-stream-single-stream sending mode is AB-5C-D, the codebook structure type of the codebook structure corresponding to the double-stream-single stream sending mode is 6A-3C-3D-EF, the codebook structure type the codebook structure corresponding to the single stream-dual stream sending mode is 6A-3C-3D-EF and the type of codebook structure corresponding to the single stream-double stream sending mode is 6A-6B-6C-6D, conversion ratio between unification Feedback signals and code words for their encoding are shown in Table 2-12 or Table 2-13:

Table 2-12 D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ one one one one one 0 0 one 0 0 D / AN X ₀₄ one one one 0 0 one one 0 one 0 D / NA X ₀₅ 0 0 one one 0 one 0 0 0 one D / nn X ₀₆ 0 one 0 0 0 0 one one 0 one A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ 0 one 0 one 0 one 0 one 0 one A / n X ₁₂ 0 one one 0 0 0 one 0 one one A / AA X ₁₃ 0 0 0 one one 0 one 0 one 0 A / AN X ₁₄ one 0 one 0 one 0 one 0 0 one A / NA X ₁₅ one one 0 one 0 0 0 0 one one A / nn X ₁₆ one 0 0 0 one one 0 one one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 one 0 0 one 0 one one 0 N / N X ₂₂ 0 0 0 one one one one 0 one 0 N / aa X ₂₃ one 0 0 one 0 one one one 0 0 N / AN X ₂₄ 0 0 one 0 one one one one 0 0 N / NA X ₂₅ 0 one 0 one 0 one 0 one one 0 N / NN X ₂₆ 0 one one 0 one 0 0 0 one one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 0 0 0 one one 0 0 one 0 AA / N X ₃₂ 0 one 0 one one one one one 0 0 AA / AA X ₃₃ one 0 one one one one 0 0 one 0 AA / AN X ₃₄ one 0 one one 0 0 one one one one AA / NA X ₃₅ one one 0 one one one one 0 0 one AA / NN X ₃₆ 0 0 0 0 0 one one 0 one one AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one one 0 0 one one 0 one 0 AN / N X ₄₂ one one 0 0 one 0 one one one 0 AN / AA X ₄₃ one one one 0 0 0 0 0 0 one AN / AN X ₄₄ one one 0 0 one 0 one one one 0 AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ one 0 0 0 one 0 0 0 one one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 one one 0 one 0 0 0 one NA / N X ₅₂ 0 0 0 one one 0 0 one 0 one NA / AA X ₅₃ 0 one one one 0 one one one 0 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ 0 0 0 one one 0 0 one 0 one NA / NN X ₅₆ 0 0 0 one one one one one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 one one 0 0 0 0 one 0 0 NN / N X ₆₂ one 0 one 0 0 0 0 0 one one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 0 0 one one 0 NN / NA X ₆₅ 0 one 0 0 one one 0 0 0 0 NN / NN X ₆₆ 0 one one 0 one one 0 one one one

Table 2-13 D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 one one one one 0 one 0 D / AA X ₀₃ one one one one one 0 0 one 0 0 D / AN X ₀₄ one one one 0 0 one one 0 one 0 D / NA X ₀₅ 0 0 one one 0 one 0 0 0 one D / nn X ₀₆ 0 one 0 0 0 0 one one 0 one A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ 0 one 0 one 0 one 0 one 0 one A / n X ₁₂ 0 one one 0 0 0 one 0 one one A / AA X ₁₃ 0 0 0 one one 0 one 0 one 0 A / AN X ₁₄ one 0 one 0 one 0 one 0 0 one A / NA X ₁₅ one one 0 one 0 0 0 0 one one A / nn X ₁₆ one 0 0 0 one one 0 one one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 one 0 0 one 0 one one 0 N / N X ₂₂ 0 0 0 one one one one 0 one 0 N / aa X ₂₃ one 0 0 one 0 one one one 0 0 N / AN X ₂₄ 0 0 one 0 one one one one 0 0 N / NA X ₂₅ 0 one 0 one 0 one 0 one one 0 N / NN X ₂₆ 0 one one 0 one 0 0 0 one one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 one 0 0 one one 0 0 0 0 AA / N X ₃₂ one 0 0 0 one 0 0 0 one one AA / AA X ₃₃ one 0 one one one one 0 0 one 0 AA / AN X ₃₄ one 0 one one 0 0 one one one one AA / NA X ₃₅ one one 0 one one one one 0 0 one AA / NN X ₃₆ 0 0 0 0 0 one one 0 one one AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one one 0 0 one one 0 one 0 AN / N X ₄₂ one one 0 0 one 0 one one one 0 AN / AA X ₄₃ one one one 0 0 0 0 0 0 one AN / AN X ₄₄ one one 0 0 one 0 one one one 0 AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ one 0 0 0 one 0 0 0 one one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 one one 0 one 0 0 0 one NA / N X ₅₂ 0 0 0 one one 0 0 one 0 one NA / AA X ₅₃ 0 one one one 0 one one one 0 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ 0 0 0 one one 0 0 one 0 one NA / NN X ₅₆ 0 0 0 one one one one one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 0 one 0 0 0 0 one one 0 NN / N X ₆₂ 0 one one one 0 one one one 0 0 NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 0 0 one one 0 NN / NA X ₆₅ 0 one 0 0 one one 0 0 0 0 NN / NN X ₆₆ 0 one one 0 one one 0 one one one

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook howl book corresponding to the single-stream-single-stream sending mode is 2A-2B-2C-2D, the type of codebook structure of the codebook structure corresponding to the double-stream-single stream sending mode is 6A-3C-3D-EF, the type of structure the codebook structure of the codebook corresponding to the single stream-dual stream sending mode is 6A-3C-3D-EF and the type of codebook structure of the codebook structure corresponding to the single stream-dual stream sending mode is 6A-6B-6C- 6D, conversion ratio between integer nennymi feedback signals and code words to encode them shown in Table 2-14 and Table 2-15:

Table 2-14 D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ one 0 0 0 one 0 0 0 one one D / AN X ₀₄ 0 one 0 0 0 0 one one 0 one D / NA X ₀₅ 0 0 0 one one one one one one 0 D / nn X ₀₆ one one one one one 0 0 one 0 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one 0 one 0 one 0 one 0 one 0 A / n X ₁₂ one one 0 0 one one 0 0 one one A / AA X ₁₃ one 0 one 0 0 one one 0 0 0 A / AN X ₁₄ one 0 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 0 one one one 0 one 0 0 one A / nn X ₁₆ 0 one one one 0 one 0 0 one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 0 one one 0 0 one one 0 0 N / N X ₂₂ 0 one 0 one 0 one 0 one 0 one N / aa X ₂₃ one one 0 one 0 0 one 0 one 0 N / AN X ₂₄ one one 0 0 0 one 0 one one 0 N / NA X ₂₅ 0 one one 0 one 0 one 0 one 0 N / NN X ₂₆ 0 0 one 0 one one 0 one 0 one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 0 0 0 one one 0 0 one 0 AA / N X ₃₂ 0 one 0 one one one one one 0 0 AA / AA X ₃₃ 0 one one 0 one one 0 one one one AA / AN X ₃₄ one 0 one one 0 0 one one one one AA / NA X ₃₅ one one 0 one one one one 0 0 one AA / NN X ₃₆ 0 one one one 0 one one one 0 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one one 0 0 one one 0 one 0 AN / N X ₄₂ one one 0 0 one 0 one one one 0 AN / AA X ₄₃ 0 0 0 one one 0 0 one 0 one AN / AN X ₄₄ one one one 0 0 0 0 0 0 one AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ 0 0 one one 0 one 0 0 0 one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 one one 0 one 0 0 0 one NA / N X ₅₂ 0 0 0 one one 0 0 one 0 one NA / AA X ₅₃ one one 0 0 one 0 one one one 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ one 0 one one one one 0 0 one 0 NA / NN X ₅₆ one one one 0 0 one one 0 one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 one one 0 0 0 0 one 0 0 NN / N X ₆₂ one 0 one 0 0 0 0 0 one one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 0 0 one one 0 NN / NA X ₆₅ 0 one 0 0 one one 0 0 0 0 NN / NN X ₆₆ 0 0 0 0 0 one one 0 one one Preamble Indication Information (PRE) / Conclusion (POST) Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

Table 2-15 D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ one 0 0 0 one 0 0 0 one one D / AN X ₀₄ 0 one 0 0 0 one one 0 0 one D / NA X ₀₅ 0 0 0 one one one one one one 0 D / nn X ₀₆ one one one one one one 0 0 0 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one 0 one 0 one 0 one 0 one 0 A / n X ₁₂ one one 0 0 one one 0 0 one one A / AA X ₁₃ one 0 one 0 0 0 one one 0 0 A / AN X ₁₄ one 0 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 0 one one one 0 one 0 0 one A / nn X ₁₆ 0 one one one 0 0 0 one one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 0 one one 0 0 one one 0 0 N / N X ₂₂ 0 one 0 one 0 one 0 one 0 one N / aa X ₂₃ one one 0 one 0 0 one 0 one 0 N / AN X ₂₄ one one 0 0 0 one 0 one one 0 N / NA X ₂₅ 0 one one 0 one 0 one 0 one 0 N / NN X ₂₆ 0 0 one 0 one one 0 one 0 one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 0 one 0 0 one 0 0 one 0 AA / N X ₃₂ 0 one one one 0 one one one 0 0 AA / AA X ₃₃ 0 one one 0 one one 0 one one one AA / AN X ₃₄ one 0 one one 0 one one 0 one one AA / NA X ₃₅ one one 0 one one 0 one one 0 one AA / NN X ₃₆ 0 one one one 0 one one one 0 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one 0 0 one one one 0 one 0 AN / N X ₄₂ one one one 0 0 0 one one one 0 AN / AA X ₄₃ 0 0 0 one one one 0 0 0 one AN / AN X ₄₄ one one one 0 0 0 0 0 0 one AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ 0 0 one one 0 0 0 one 0 one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 0 one one one 0 0 0 one NA / N X ₅₂ 0 0 one one 0 0 0 one 0 one NA / AA X ₅₃ one one 0 0 one one one 0 one 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ one 0 one one one 0 0 one one 0 NA / NN X ₅₆ one one one 0 0 0 one one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 one 0 0 one 0 0 one 0 0 NN / N X ₆₂ one 0 0 0 one 0 0 0 one one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 one 0 0 one 0 NN / NA X ₆₅ 0 one 0 0 one 0 0 one 0 0 NN / NN X ₆₆ 0 0 0 0 0 0 one one one one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

In addition, the PRE / POST indication information in Table 2-14 may be replaced by Table 2-16:

Table 2-16 PRE / POST Indication Information Pre 0 0 one one 0 0 0 one one one Post one one 0 0 one one one 0 0 0

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook howl, corresponding to the single-stream-single-stream sending mode, is 2A-2B-4C, the type of codebook structure of the codebook structure corresponding to the double-stream-single-stream sending mode is 6A-2B-6C, type of codebook structure in the structure the codebook corresponding to the single stream-dual stream sending mode is 6A-3C-3D-EF and the codebook structure type of the codebook corresponding to the dual stream-double stream sending mode is 6A-6B-6C-6D, the conversion ratio between united feedback signals and code words for their encoding are shown in table 2-17 or table 2-18:

Table 2-17 D / a X ₀₁ 0 0 0 0 0 0 one one one one D / n X ₀₂ one one one one one one 0 0 0 0 D / AA X ₀₃ one 0 0 0 one 0 0 0 one one D / AN X ₀₄ 0 one 0 0 0 0 one one 0 one D / NA X ₀₅ 0 0 0 one one one one one one 0 D / nn X ₀₆ one one one one one 0 0 one 0 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one one 0 one 0 0 0 0 one one A / n X ₁₂ 0 0 one one one 0 one 0 0 one A / AA X ₁₃ one 0 one 0 0 one one 0 0 0 A / AN X ₁₄ one 0 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 0 one one one 0 one 0 0 one A / nn X ₁₆ 0 one one one 0 one 0 0 one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 0 one 0 one one one 0 0 N / N X ₂₂ 0 one one 0 0 one 0 one 0 one N / aa X ₂₃ one one 0 one 0 0 one 0 one 0 N / AN X ₂₄ one one 0 0 0 one 0 one one 0 N / NA X ₂₅ 0 one one 0 one 0 one 0 one 0 N / NN X ₂₆ 0 0 one 0 one one 0 one 0 one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 one one 0 0 0 0 one 0 0 AA / N X ₃₂ one one one 0 0 one one 0 one 0 AA / AA X ₃₃ 0 one one 0 one one 0 one one one AA / AN X ₃₄ one 0 one one 0 0 one one one one AA / NA X ₃₅ one one 0 one one one one 0 0 one AA / NN X ₃₆ 0 one one one 0 one one one 0 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one 0 one one one 0 0 one one 0 AN / N X ₄₂ 0 0 one one 0 one 0 0 0 one AN / AA X ₄₃ 0 0 0 one one 0 0 one 0 one AN / AN X ₄₄ one one one 0 0 0 0 0 0 one AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ 0 0 one one 0 one 0 0 0 one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 one 0 one one one one one 0 0 NA / N X ₅₂ one one 0 0 one 0 0 0 0 one NA / AA X ₅₃ one one 0 0 one 0 one one one 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ one 0 one one one one 0 0 one 0 NA / NN X ₅₆ one one one 0 0 one one 0 one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 0 0 0 one one 0 0 one 0 NN / N X ₆₂ 0 one 0 0 0 one one 0 0 one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 0 0 one one 0 NN / NA X ₆₅ 0 one 0 0 one one 0 0 0 0 NN / NN X ₆₆ 0 0 0 0 0 one one 0 one one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

Table 2-18 D / a X ₀₁ 0 0 0 0 0 0 one one one one D / n X ₀₂ one one one one one one 0 0 0 0 D / AA X ₀₃ one 0 0 0 one 0 0 0 one one D / AN X ₀₄ 0 one 0 0 0 one one 0 0 one D / NA X ₀₅ 0 0 0 one one one one one one 0 D / nn X ₀₆ one one one one one one 0 0 0 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one one 0 one 0 0 0 0 one one A / n X ₁₂ 0 0 one one one 0 one 0 0 one A / AA X ₁₃ one 0 one 0 0 0 one one 0 0 A / AN X ₁₄ one 0 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 0 one one one 0 one 0 0 one A / nn X ₁₆ 0 one one one 0 0 0 one one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 0 one 0 one one one 0 0 N / N X ₂₂ 0 one one 0 0 one 0 one 0 one N / aa X ₂₃ one one 0 one 0 0 one 0 one 0 N / AN X ₂₄ one one 0 0 0 one 0 one one 0 N / NA X ₂₅ 0 one one 0 one 0 one 0 one 0 N / NN X ₂₆ 0 0 one 0 one one 0 one 0 one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 one 0 0 one 0 0 one 0 0 AA / N X ₃₂ one one 0 0 one one one 0 one 0 AA / AA X ₃₃ 0 one one 0 one one 0 one one one AA / AN X ₃₄ one 0 one one 0 one one 0 one one AA / NA X ₃₅ one one 0 one one 0 one one 0 one AA / NN X ₃₆ 0 one one one 0 one one one 0 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one 0 one one one 0 0 one one 0 AN / N X ₄₂ 0 0 0 one one one 0 0 0 one AN / AA X ₄₃ 0 0 0 one one one 0 0 0 one AN / AN X ₄₄ one one one 0 0 0 0 0 0 one AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ 0 0 one one 0 0 0 one 0 one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 one one one 0 one one one 0 0 NA / N X ₅₂ one one one 0 0 0 0 0 0 one NA / AA X ₅₃ one one 0 0 one one one 0 one 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ one 0 one one one 0 0 one one 0 NA / NN X ₅₆ one one one 0 0 0 one one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 0 one 0 0 one 0 0 one 0 NN / N X ₆₂ 0 one 0 0 0 one one 0 0 one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 one 0 0 one 0 NN / NA X ₆₅ 0 one 0 0 one 0 0 one 0 0 NN / NN X ₆₆ 0 0 0 0 0 0 one one one one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

In addition, the PRE / POST information in Table 2-17 is replaced by Table 2-19:

Table 2-19 PRE / POST Indication Information Pre 0 one one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one one 0

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook 2, 2A-2B-2C-2D, the type of codebook structure of the code book corresponding to the dual stream-single stream sending mode is {A1, A2, A5, A6} U2B -3C-3D-EF, the type of codebook structure of the codebook structure corresponding to the single stream-dual stream sending mode is 6A-2B-2C-DU {D3 ~ D5} and the type of codebook structure of the codebook structure corresponding to the mode sending dual stream-dual stream, is {G7 ~ G16} U {H1 ~ H8} U {H9 ~ H16}, the conversion ratio The links between the combined feedback signals and the code words for their encoding are shown in Table 2-20:

Table 2-20 D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ 0 0 one one one one 0 0 0 one D / AN X ₀₄ 0 one one 0 0 one one one 0 0 D / NA X ₀₅ 0 0 0 0 one 0 one one one one D / nn X ₀₆ one one one 0 one 0 0 0 one 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one 0 one 0 one 0 one 0 one 0 A / n X ₁₂ one one 0 0 one one 0 0 one one A / AA X ₁₃ one one 0 0 one one one 0 0 one A / AN X ₁₄ 0 one one one 0 0 one 0 one one A / NA X ₁₅ one 0 one one one 0 one one 0 0 A / nn X ₁₆ one 0 one 0 0 0 one 0 0 one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 0 one one 0 0 one one 0 0 N / N X ₂₂ 0 one 0 one 0 one 0 one 0 one N / aa X ₂₃ one 0 0 one one 0 0 0 one one N / AN X ₂₄ one 0 0 one 0 one one 0 one 0 N / NA X ₂₅ one one 0 one 0 0 0 one 0 one N / NN X ₂₆ one one 0 0 0 0 one one one 0 AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 one 0 one 0 0 0 0 one 0 AA / N X ₃₂ 0 one one one 0 one one one 0 0 AA / AA X ₃₃ one 0 0 0 0 one 0 one 0 0 AA / AN X ₃₄ 0 0 one one 0 0 one one one 0 AA / NA X ₃₅ one one 0 one one 0 one one 0 one AA / NN X ₃₆ one one 0 0 0 0 one one one 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ 0 0 0 one one one 0 0 0 one AN / N X ₄₂ 0 0 one one 0 0 0 one 0 one AN / AA X ₄₃ 0 0 0 0 0 0 0 0 0 one AN / AN X ₄₄ one 0 one one 0 one one 0 one one AN / NA X ₄₅ one 0 0 one one 0 0 0 one one AN / NN X ₄₆ one 0 one one one 0 0 one 0 0 NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ one one 0 0 one one one 0 one 0 NA / N X ₅₂ one one one 0 0 0 one one one 0 NA / AA X ₅₃ 0 one 0 one one one one 0 0 0 NA / AN X ₅₄ 0 one one 0 one one 0 one one one NA / NA X ₅₅ one 0 0 0 one one one 0 one 0 NA / NN X ₅₆ 0 0 0 one one one 0 one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ one 0 0 0 one 0 0 0 one one NN / N X ₆₂ 0 0 one 0 one 0 one 0 0 0 NN / AA X ₆₃ one one one one 0 one 0 0 0 0 NN / AN X ₆₄ 0 one 0 0 0 one one 0 one one NN / NA X ₆₅ one one one 0 0 0 one 0 0 one NN / NN X ₆₆ 0 one one one 0 0 0 one 0 one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

In addition, when the type of codebook structure of the codebook structure corresponding to the sending mode of a single DTX stream is AB, the type of codebook structure of the codebook corresponding to the sending mode of the DTX single stream is AB, the type of codebook structure of the structure the codebook corresponding to the dual stream-DTX send mode is 4A, the codebook structure type of the codebook structure corresponding to the DTX-dual stream send mode is 4A, the codebook structure type of the codebook howl, corresponding to the single-stream-single-stream sending mode, is 2A-2B-4C, the codebook structure type of the codebook corresponding to the dual-stream-single-stream sending mode is 4A-3B-6C-D, codebook structure type the codebook structure corresponding to the single stream-dual stream sending mode is 6A-2B-2C-DU {D3 ~ D5} and the codebook structure type of the codebook corresponding to the dual stream-double stream sending mode is {G7 ~ G16} U {H1 ~ H8} U {H9 ~ H16}, the conversion ratio between have combined feedback signals and code words to encode them shown in Table 2-21:

Table 2-21 D / a X ₀₁ 0 0 0 0 0 0 one one one one D / n X ₀₂ one one one one one one 0 0 0 0 D / AA X ₀₃ 0 0 one one one one 0 0 0 one D / AN X ₀₄ 0 one one 0 0 one one one 0 0 D / NA X ₀₅ 0 0 0 0 one 0 one one one one D / nn X ₀₆ one one one 0 one 0 0 0 one 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one one 0 one 0 0 0 0 one one A / n X ₁₂ 0 0 one one one 0 one 0 0 one A / AA X ₁₃ one one 0 0 one one one 0 0 one A / AN X ₁₄ 0 one one one 0 0 one 0 one one A / NA X ₁₅ one 0 one one one 0 one one 0 0 A / nn X ₁₆ one 0 one 0 0 0 one 0 0 one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 0 one 0 one one one 0 0 N / N X ₂₂ 0 one one 0 0 one 0 one 0 one N / aa X ₂₃ one 0 0 one one 0 0 0 one one N / AN X ₂₄ one 0 0 one 0 one one 0 one 0 N / NA X ₂₅ one one 0 one 0 0 0 one 0 one N / NN X ₂₆ one one 0 0 0 0 one one one 0 AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ one 0 0 0 one 0 0 0 one one AA / N X ₃₂ 0 0 one 0 one 0 one 0 0 0 AA / AA X ₃₃ one 0 0 0 0 one 0 one 0 0 AA / AN X ₃₄ 0 0 one one 0 0 one one one 0 AA / NA X ₃₅ one one 0 one one 0 one one 0 one AA / NN X ₃₆ one one 0 0 0 0 one one one 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one one 0 0 0 one one one 0 AN / N X ₄₂ one 0 0 0 0 one 0 one 0 0 AN / AA X ₄₃ 0 0 0 0 0 0 0 0 0 one AN / AN X ₄₄ one 0 one one 0 one one 0 one one AN / NA X ₄₅ one 0 0 one one 0 0 0 one one AN / NN X ₄₆ one 0 one one one 0 0 one 0 0 NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 one one 0 0 0 one 0 one NA / N X ₅₂ 0 one 0 0 0 one one 0 0 one NA / AA X ₅₃ 0 one 0 one one one one 0 0 0 NA / AN X ₅₄ 0 one one 0 one one 0 one one one NA / NA X ₅₅ one 0 0 0 one one one 0 one 0 NA / NN X ₅₆ 0 0 0 one one one 0 one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 0 0 one one one one one one 0 NN / N X ₆₂ 0 one 0 one 0 0 0 0 one 0 NN / AA X ₆₃ one one one one 0 one 0 0 0 0 NN / AN X ₆₄ 0 one 0 0 0 one one 0 one one NN / NA X ₆₅ one one one 0 0 0 one 0 0 one NN / NN X ₆₆ 0 one one one 0 0 0 one 0 one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

In embodiments of the present invention, there is provided a method for jointly encoding feedback signals of two carriers and transmitting the encoded feedback signal over a code channel in DC-MIMO mode. In this coding method, the system has a lower binary error rate (BER) and the cost of detection error, so that unproductive power consumption is saved and the CM value of the system is not affected, thereby increasing system performance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flowchart of a signal encoding method in accordance with a first embodiment of the present invention;

FIG. 2 is a schematic structure of a combined HARQ-ACK encoder to which a second embodiment of a signal encoding method in accordance with the present invention is applicable;

FIG. 3 is a schematic structural view of a signal encoding apparatus in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS

The first embodiment of the signal encoding method of the present invention is illustrated below.

FIG. 1 is a flowchart of a signal encoding method in accordance with a first embodiment of the present invention. As shown in FIG. 1, the method includes, in particular, the following steps.

In step 101, when the two carriers are configured with MIMO, the HARQ-ACK signals of the two carriers are combined into a combined feedback signal.

At step 102, in accordance with a predetermined conversion relationship between signals and codewords, the combined feedback signal is converted into a codeword.

Step 101 may be, in particular, the following: HARQ-ACK signals of two carriers in a dual carrier are combined into carrier feedback (frequency) signals corresponding to the carriers. In particular, if each carrier carries multiple signal streams, the HARQ-ACK signals of each carrier are combined into a carrier feedback signal. Taking the dual stream as an example, the HARQ-ACK signals of the two streams of each carrier are combined into a carrier feedback signal. The two carrier feedback signals are then combined into a combined feedback signal.

In this embodiment, a method is provided for encoding two-carrier feedback signals in DC-MIMO mode, where a single code channel is used, so that power consumption is saved and the CM value of the system is not affected, thereby improving system performance.

The second embodiment of the signal encoding method of the present invention is illustrated below.

FIG. 2 is a schematic structure of a combined HARQ-ACK encoder, to which a second embodiment of a signal encoding method in accordance with the present invention is applicable. In DC-MIMO mode, the Node B mainly sends user data to the UEs on the Primary and Secondary carriers simultaneously, and both carriers use MIMO technology. In other words, the UE most often receives data from four streams on two carriers. After receiving the data, the UE needs to provide feedback (the feedback information includes DTX, ACK and NACK) in accordance with cases of receiving data. The UE combines the feedback information of the two carriers and encodes the feedback information into a 10-bit sequence 0-1, which returns to the Node B via HS-DPCCH. The node B selects the decoding space in accordance with the sending mode and performs decoding.

First, the HARQ-ACK signals of the two carriers are combined into carrier frequency feedback signals corresponding to the carriers. The process is specifically described below.

As shown in FIG. 2, the primary carrier signal synthesis submodule and the secondary carrier signal synthesis submodule combine the HARQ-ACK signals on the primary carrier and the secondary carrier into carrier feedback signals corresponding to the carriers. In other words, the functions of the two submodules are configured to convert the feedback signals for two data streams on the carrier into a carrier feedback signal, respectively. Each carrier has two modes of sending data, namely a single stream mode and a dual stream mode. In single stream mode, feedback is not provided for the first stream (i.e., the feedback signal for the first stream is DTX by default), and the feedback signal provides feedback for the second stream only.

The set of feedback signals for each stream of each carrier is {DTX, ACK, NACK}, so the set of feedback signals of the carrier for each carrier is {DTX, ACK, NACK, ACK_ACK, ACK_NACK, NACK_ACK, NACK_NACK}. ACK_ACK represents that the feedback signal for the first stream on the carrier is ACK and the feedback signal for the second stream is ACK. The carrier feedback signals are numbered accordingly, and table 1-10 can be used for details. Table 1-10 shows the conversion relationship between carrier feedback signals and numbers in MIMO mode.

For the conversion process, consisting of combining the feedback signals of two streams into a carrier feedback signal, you can refer to table 1-11.

Table 1-11
Conversion ratio between carrier feedback signals and two stream feedback signals Second Stream Feedback DTX (= 0) ACK (= 1) NACK (= 2) First Stream Feedback DTX (= 0) DTX (= 0) ACK (= 1) NACK (= 2) ACK (= 1) - ACK_ACK (= 3) ACK_NACK (= 4) NACK (= 2) - NACK_ACK (= 5) NACK_NACK (= 6)

"=" in table 1-11 represents the corresponding relationship between the feedback signal and the number.

S1 and S2 represent the numbers corresponding to the feedback signals of the first stream and the second stream, respectively, S represents the number corresponding to the feedback signal of the carrier, and S = 2 * S1 + S2.

It is assumed that the carrier feedback signal can be represented by a two-dimensional vector S = (S1, S2), which corresponds to feedback signals, for example ACK = (DTX, ACK) and ACK_NACK = (ACK, NACK).

The transformation ratios shown in Tables 1-10 and 1-11 are only specific examples, and the embodiment is not limited to the transformation ratios shown in Tables 1-10 and 1-11, and other schemes may also be applied.

Secondly, two carrier feedback signals are combined into a combined feedback signal. The process is specifically described below.

As shown in FIG. 2, the synthesis combined feedback signal sub-module combines the two carrier feedback signals into a combined feedback signal, in other words, the UE combines the two carrier feedback signals into a combined feedback signal and the encoder sub-module further encodes the combined feedback signal, namely, converts the combined signal feedback in a 10-bit sequence of 0-1. When the two carrier feedback signals are DTX, the combined signal is not converted to a code word or the combined signal is considered to be converted to DTX.

Sa and Ss represent numbers corresponding to the primary carrier feedback signal and the secondary carrier feedback signal, respectively; a1 and a2 represent feedback signals of the first stream and the second stream on the primary carrier, respectively; and b1 and b2 represent feedback signals of the first stream and the second stream on the secondary carrier, respectively. For simplicity of illustration, one combined feedback signal can be represented by a four-dimensional vector, for example, Sig = (a1, a2, b1, b2), or represented by a two-dimensional vector, for example, Sig = (Sa, Ss), in which the signals corresponding to a1, a2, b1 , b2∈ {DTX, ACK, NACK}, signals corresponding to Sa, Ss∈ {DTX, ACK, NACK, ACK_ACK, ACK_NACK, NACK_ACK, NACK_NACK}, and Sa = 2a1 + a2, Ss = 2b1 + b2.

Suppose Sa = i, Ss = j, so that the combined feedback signal is represented as X _ij . The primary carrier feedback signal in the combined feedback signal is the signal corresponding to the number i, and the secondary carrier feedback signal in the combined feedback signal is the signal corresponding to the number j, where 0≤i≤6, 0≤j≤6. The signals corresponding to numbers 0-6 are DTX, ACK, NACK, ACK_ACK, ACK_NACK, NACK_ACK and NACK_NACK in the sequence, or simply D, A, N, AA, AN, NA and NN. For example, X ₃₄ represents that the primary carrier sends a signal numbered 3, and the secondary carrier sends a signal numbered 4, that is, ACK_ACK / ACK_NACK, which is simplified as AA / AN.

For a conversion process consisting of combining two carrier feedback signals into a combined feedback signal, refer to Table 1-12.

In DC-MIMO mode, the data sending mode for Node B on some carrier includes: the absence of sending data on the carrier so that the feedback signal is DTX; using a single MIMO stream mode on a carrier and using a dual MIMO stream mode on a carrier. Therefore, nine combinations of data sending modes for Node B on two carriers include DTX-DTX mode, single stream-DTX, DTX-single stream, single stream-single stream, double stream-DTX, DTX-double stream, double stream-single stream, single stream - double stream and double stream - double stream. No data is sent to the DTX-DTX, so the remaining eight combinations are valid data sending modes except for the DTX-DTX mode. The signal space in each combination of send modes corresponds to the area in table 1-12. For example, the signal space corresponding to the dual stream-dual stream sending mode is a set of signals in the 5 * 5 matrix in the lower right corner of table 1-12, and the other sending modes can be displayed by analogy.

Thirdly, the combined feedback signal is converted into a codeword in accordance with a predetermined conversion ratio between the signals and codewords. The process is more accurately described below.

At this point, the encoder submodule converts the combined feedback signal into a 10-bit sequence 0-1, that is, a codeword.

A conversion table for the combined feedback signals and certain codewords needs to be provided for converting the combined feedback signal to a codeword. The codeword corresponding to the input combined feedback signal is detected by searching the provided conversion table for the signal-codeword, and then the codeword is output.

A conversion table of the combined feedback signals and codewords may be provided as follows. A codebook structure satisfying a certain code distance relation is detected for each sending mode, and a conversion relation is established between each sending mode and the codeword in the codebook structure to obtain a conversion relation between the signal in Table 1-12 and the specific codeword.

First, in the process of searching for a codebook structure, a performance estimation index of a coding scheme may be considered, which includes a BER and costs of detection error. The coding scheme aims to minimize the BER and the cost of detection error by selecting the appropriate codebook structure and the appropriate conversion scheme.

BER includes single code BER and system BER. A single code BER indicates the probability that the signals X _ij sent by the UE are decoded by Node B incorrectly into other signals, and a system BER indicates the weighted average BER of a single code, which are shown in the following two formulations:

BER single code:

System BER:

where Ω represents the signal space in some sending mode, P _gen (S) represents the probability that the signal S occurs in some sending mode, and Pt (S, S) represents the probability that the sent signals S are correctly decoded in S.

The costs of the detection error indicate the costs additionally caused by incorrect decoding of the signal. It mainly considers the time costs that translate into a reduction in transmission speed due to retransmission at the Radio Control (RLC) level or physical layer. The cost of a signal detection error can be accessed in Table 1-13.

Table 1-13
Signal Detection Error Costs Signal after decoding by Node B ACK Nack Dtx Signal sent by UE ACK C ₁₁ = 0 C ₁₂ = L C ₁₀ = L Nack C ₂₁ = H C ₂₂ = 0 C ₂₀ = 0 Dtx C ₀₁ = H C ₀₂ = 0 C ₀₀ = 0

In Table 1-13, C _ij represents the cost that a signal numbered as i is detected as a signal numbered as j (C _ij can also be represented as C (i, j)), H represents the cost of retransmission to the RLC level due to a signal detection error, L represents the costs of retransmission at the physical level due to a signal detection error, and 0 represents no costs. H and L can be considered constant, and H is much larger than L, for example, H≈10L.

Suppose the signals S = (Sa1, Sa2, Sb1, Sb2) and R = (Ra1, Ra2, Rb1, Rb2), so that the cost of the detection error Cost (S, R) when S is detected as R can be calculated using the following formula :

Cost (S, R) = C (Sa1, Ra1) + C (Sa2, Ra2) + C (Sb1, Rb1) + C (Sb2, Rb2).

Suppose that Pt (S, R) represents the probability that the sent signal S is received as R. When none of S and R is DTX, it can be generally regarded so that Pt (S, R) is a function of the code distances of the code words corresponding to the signals, i.e., Pt (S, R) = f (d (S, R)). When S = DTX and R ≠ DTX, Pt (S, R) = Pt (DTX, R) = Pf, which is the probability of false alarm. When S ≠ DTX and R = DTX, Pt (S, R) = Pt (S, DTX) = Pm, which is the probability of rejecting the false hypothesis. Under predetermined conditions, the probability of a paired error, the probability of a false alarm, and the probability of rejecting a false hypothesis for code words can be obtained using computer simulation.

Therefore, the total cost of the Pr detection error during system operation in some sending mode is obtained using:

where Ω represents the signal space in send mode.

According to a method for calculating BER and costs of detection error, in embodiments of the present invention, codebook structures with lower BER and costs of detection error are selected. The codewords included in the codebook structures are A1 ~ A6, B1 ~ B6, C1 ~ C6, D1 ~ D6, E1, F1, G1 ~ G16 and H1 ~ H16. Each codeword is a 10-bit sequence of 0-1. The relationships of code distances between codewords in codebook structures can be accessed in tables 1-4 to 1-9.

In accordance with the codewords defined above, you can set the conversion relationship between sending modes and codebook structures, for example, as shown in Table 1-14.

Table 1-14
Conversion relation between send modes and codebook structures Mode Possible codebook structure Single Stream-DTX A-B or 2A ... DTX-Single Stream Dual Stream-DTX 4A, or 3A-C, or 2A-2C, or A-B-2C, or A-B-C-D ... DTX-Dual Stream Single Stream - Single Stream 2A-2B-2C-2D, or A-B-5C-D, or 2A-2B-4C, or A-B-6C, or 2A-6C, or 4A-4C ... Dual Stream - Single Stream 6A-2B-6C, or 6A-B-6C-D, or 6A-3C-3D-EF, or
4A-4B-3C-3D, 4A-3B-6C-D, or {A1, A2, A5, A6} U2B-3C-3D-EF, or 6A-2B-2C-DU {D3 ~ D5} ... Single Stream - Double Stream Dual Stream - Dual Stream 6A-6B-6C-6D, xG-yH (x + y = 24) ...

In Table 1-14, the expression xA-yB-zC-uD -... = {A1 ~ Ax, B1 ~ By, C1 ~ Cz, D1 ~ Du, ...} represents the codebook structure. If the coefficient is 0, then the corresponding element is skipped, for example 4A = {A1, A2, A3, A4}; 6A-3C-3D-E-F = {A1, A2, A3, A4, A5, A6, C1, C2, C3, D1, D2, D3, E1, F1}, and the rest can be deduced by analogy.

In addition, each codebook structure corresponding to the sending mode has a plurality of equivalent codebook structures. The so-called “equivalent” means that if the code distance matrices formed by the code words in two codebook structures ordered in accordance with a certain sequence are the same, then the two codebook structures are called equivalent codebook structures, and the exact definition is as follows:

, которое удовлетворяет

, где

- кодовое расстояние между X_i и Y_j.If the codebook structures {X _i } and {Y _j } are equivalent, then there is a transformation relation

which satisfies

where

is the code distance between X _i and Y _j .

For example, the equivalent codebook structure of the codebook structure AB can be CD or EF, and the equivalent codebook structure of the codebook structure AB-6C can be 6A-CD, in which the conversion is performed one after the other in accordance with predefined sequences {A1 , B1, C1, C2, C3, C4, C5, C6} and {C1, D1, A1, A2, A3, A4, A5, A6}, the formed code distance matrices are the same.

Provided that the code distance matrices are the same, the performance of the circuits obtained for the two codebook structures when converting with the signals are the same, so that any two equivalent codebook structures can be considered as the same type of codebook structure. The type of codebook structure may be represented by an arbitrary codebook structure of this type. For example, if A-B, C-D, and E-F are equivalent to each other and belong to the same type of codebook structure, then an arbitrary codebook structure of A-B, C-D, and E-F can be used to represent the type of codebook structure. In a particular coding scheme, each mode uniquely corresponds to a type of codebook structure.

In other words, the codewords included in the codebook structure corresponding to the single-DTX-stream or DTX-single-stream sending mode are A1 and B1, or A1 and A2, or codebook structures equivalent to this codebook structure. The codewords included in the codebook structure corresponding to the dual stream-DTX or DTX-dual stream sending mode are A1, A2, A3 and A4, or A1, A2, A3 and C1, or A1, A2, C1 and C2, or A1, B1, C1 and C2, or A1, B1, C1 and D1, or codebook structures equivalent to this codebook structure. The codewords included in the codebook structure corresponding to the single stream-single stream sending mode are A1, A2, B1, B2, C1, C2, D1 and D2, or A1, B1, C1, C2, C3, C4, C5 and D1, or A1, A2, B1, B2, C1, C2, C3 and C4, or A1, B1, C1, C2, C3, C4, C5 and C6, or A1, A2, C1, C2, C3, C4, C5 and C6, or A1, A2, A3, A4, C1, C2, C3 and C4, or codebook structures equivalent to this codebook structure. The code words included in the codebook structure corresponding to the dual stream-single stream or single-stream dual stream sending mode are A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6, or A1, A2, A3, A4, A5, A6, B1, C1, C2, C3, C4, C5, C6 and D1, or A1, A2, A3, A4, A5, A6, C1, C2, C3 , D1, D2, D3, E1 and F1, or A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, D1, D2 and D3, or A1, A2, A3, A4, B1 , B2, B3, C1, C2, C3, C4, C5, C6 and D1, or A1, A2, A5, A6, B1, B2, C1, C2, C3, D1, D2, D3, E1 and F1, or A1 , A2, A3, A4, A5, A6, B1, B2, C1, C2, D1, D3, D4 and D5, or codebook structures equivalent to this codebook structure. The codewords included in the codebook structure corresponding to the dual stream-dual stream sending mode are A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1, C2, C3, C4 , C5, C6, D1, D2, D3, D4, D5 and D6, or codebook structures formed from 24 codewords arbitrarily selected from 16G-16H, or codebook structures equivalent to the codebook structure.

In addition, in accordance with the results obtained, the type of codebook structure is determined for each sending mode, and the combined feedback signals are encoded in different sending modes.

In connection with the foregoing, in this embodiment, a method is provided for encoding two-carrier feedback signals in the DC-MIMO mode, in which a single code channel is used, so that unproductive power consumption is saved and the SM value of the system is not affected, thereby increasing system performance . Furthermore, in this embodiment, a suitable codebook structure and a conversion relationship between the feedback signal and the codeword are selected in accordance with the BER and the costs of the detection error in order to minimize the cost of the signal detection error and increase the data transfer efficiency in the system.

A first embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

A method for encoding a feedback signal in accordance with this embodiment includes the following step: the combined feedback signals in different send modes are encoded in accordance with code words in codebook structures corresponding to send modes or in their equivalent codebook structures, respectively.

In particular, in this embodiment, codebook structures having code distance relationships shown in Tables 1-4, 1-5, and 1-6 in a second embodiment of a signal encoding method, and a transform relation between send modes and codebook structures, which are shown in table 1-14, are used to encode the combined feedback signals in different sending modes. The process is more accurately described below.

(1) Coding scheme for combined feedback signals in a single stream-single stream send mode

As shown in Table 1-15, the codebook structure that can be used in this embodiment is 2A-2B-2C-2D or an equivalent codebook structure. "=" in table 1-15 means "corresponding" or "converted to", which is hereinafter the same. The codewords included in the codebook structure can be A1, A2, B1, B2, C1, C2, D1 and D2. Encoding the combined feedback signals in a single stream-single stream sending mode includes: encoding the combined feedback signals in which X ₁₁ , X ₁₂ , X ₁₀ , X ₂₁ , X ₂₂ , X ₂₀ , X ₀₁ and X _{02 are} converted to D2, B2, A1, A2, C2, B1, C1 and D1, respectively.

Moreover, even if the same codebook structure is used, there is also a conversion scheme equivalent to the above conversion process, which is more precisely defined as follows.

и

в наборе сигналов {S_i} и соответствующая структура кодовой книги {X_j} эквивалентны; структура кодовой книги {X_j} образует одинаковые матрицы кодовых расстояний в последовательностях, заранее установленных в схеме преобразования, то есть в последовательности

и последовательности

; две схемы преобразования удовлетворяют

, то есть два произвольных сигнала имеют одинаковое кодовое расстояние в двух схемах преобразования.Two conversion schemes

and

in the signal set {S _i } and the corresponding codebook structure {X _j } are equivalent; the codebook structure {X _j } forms the same matrix of code distances in the sequences predefined in the transformation circuit, that is, in the sequence

and sequences

; two conversion schemes satisfy

, that is, two arbitrary signals have the same code distance in two conversion schemes.

представляет кодовые слова, соответствующие сигналу S_i в схеме преобразования

,

представляет кодовые слова, соответствующие сигналу S_i в схеме преобразования

, а

представляет кодовое расстояние между кодовыми словами a, b. Кодовое расстояние между двумя сигналами относится к кодовому расстоянию между кодовыми словами, соответствующими сигналам.

represents codewords corresponding to the signal S _i in the conversion circuit

,

represents codewords corresponding to the signal S _i in the conversion circuit

, but

represents the code distance between the code words a, b. The code distance between two signals refers to the code distance between the code words corresponding to the signals.

Provided that the generated code distance matrices are the same, the performance of the circuits are the same. Therefore, any two equivalent conversion schemes can be considered as the same conversion scheme.

For example, an equivalent conversion circuit exists for Table 1-15, that is, the combined feedback signals X ₁₁ , X ₁₂ , X ₁₀ , X ₂₁ , X ₂₂ , X ₂₀ , X ₀₁ and X ₀₂ can be converted to B2, D2, C1, C2, A2, D1, A1 and B1, respectively. In the two conversion schemes, the code distance matrixes for the signals are the same, and the code distances between the signals are equal to the code distances between the code words corresponding to these signals. Therefore, two conversion schemes can be considered as one and the same conversion scheme, which can be expressed in Table 1-15 in a unified way. All of the following schemes can be understood similarly.

As shown in Table 1-16, the codebook structure that can be used in this embodiment is AB-5C-D or an equivalent codebook structure. The codewords included in the codebook structure can be A1, B1, C1, C2, C3, C4, C5 and D1. Encoding the combined feedback signals in a single stream-single stream sending mode includes: encoding the combined feedback signals in which X ₁₁ , X ₁₂ , X ₁₀ , X ₂₁ , X ₂₂ , X ₂₀ , X ₀₁ and X _{02 are} converted to C2, C3, A1, C4, C5, B1, C1 and D1, respectively.

As shown in Table 1-17, the codebook structure that can be used in this embodiment is 2A-2B-4C or an equivalent codebook structure. The codewords included in the codebook structure can be A1, A2, B1, B2, C1, C2, C3 and C4. Encoding the combined feedback signals in a single stream-single stream sending mode includes: encoding the combined feedback signals in which X ₁₁ , X ₁₂ , X ₁₀ , X ₂₁ , X ₂₂ , X ₂₀ , X ₀₁ and X _{02 are} converted to C1, C2, A1, C3, C4, B1, A2 and B2, respectively.

The codebook structure and / or conversion schemes used in the single-stream-single-stream mode are also applicable in a coding system that needs to use eight 10-bit codewords, for example, combined HARQ-ACK coding of a double carrier in which neither of the two carriers cannot be configured with MIMO, or combined HARQ-ACK encoding of a dual carrier in a single stream mode in which one carrier is not configured with MIMO, while the other carrier is configured with MIMO, or an encoding system or subsystem that uzhno return only eight 10-bit codewords, if configured more carriers.

(2) Coding scheme for combined feedback signals in a single stream-dual stream mode

As shown in Table 1-18, the codebook structure that can be used in this embodiment is 6A-3C-3D-EF or an equivalent codebook structure. The code words included in the codebook structure can be A1, A2, A3, A4, A5, A6, C1, C2, C3, D1, D2, D3, E1 and F1. Encoding the combined feedback signals in a single stream-dual stream sending mode includes: coding the combined feedback signals in which X ₁₀ , X ₁₃ , X ₁₄ , X ₁₅ , X ₁₆ , X ₂₀ , X ₂₃ , X ₂₄ , X ₂₅ , X ₂₆ , X ₀₃ , X ₀₄ , X ₀₅ and X _{06 are} converted to E1, A3, C1, C2, A4, F1, C3, D2, D1, D3, A1, A2, A5 and A6, respectively.

As shown in Table 1-19, the codebook structure that can be used in this embodiment is 6A-2B-6C or an equivalent codebook structure. The codewords included in the codebook structure can be A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6. Encoding the combined feedback signals in the single stream-dual stream sending mode includes: encoding the combined feedback signals X ₁₀ , X ₁₃ , X ₁₄ , X ₁₅ , X ₁₆ , X ₂₀ , X ₂₃ , X ₂₄ , X ₂₅ , X ₂₆ , X ₀₃ , X ₀₄ , X ₀₅ and X ₀₆ in A1, C1, C2, C3, A3, B1, C4, C5, C6, B2, A2, A4, A5 and A6, respectively.

As shown in Table 1-20, the codebook structure that can be used in this embodiment is 6A-2B-6C or an equivalent codebook structure. The codewords included in the codebook structure can be A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6. Encoding the combined feedback signals in the single stream-dual stream sending mode includes: encoding the combined feedback signals X ₁₀ , X ₁₃ , X ₁₄ , X ₁₅ , X ₁₆ , X ₂₀ , X ₂₃ , X ₂₄ , X ₂₅ , X ₂₆ , X ₀₃ , X ₀₄ , X ₀₅ and X ₀₆ into single streams A1, C5, A2, A3, C6, B1, A4, A5, A6, B2, C1, C2, C3 and C4, respectively.

(3) Coding scheme for combined feedback in dual-stream-single-stream send mode

As shown in Table 1-21, the codebook structure that can be used in this embodiment is 6A-3C-3D-EF. The code words included in the codebook structure can be A1, A2, A3, A4, A5, A6, C1, C2, C3, D1, D2, D3, E1 and F1. Encoding the combined feedback signals in the dual stream-single stream sending mode includes: encoding the combined feedback signals X ₀₁ , X ₀₂ , X ₃₁ , X ₃₂ , X ₃₀ , X ₄₁ , X ₄₂ , X ₄₀ , X ₅₁ , X ₅₂ , X ₅₀ , X ₆₁ , X ₆₂ and X ₆₀ in E1, F1, A3, C3, A1, C1, D2, A2, C2, D1, A5, A4, D3 and A6, respectively.

As shown in Table 1-22, the codebook structure that can be used in this embodiment is 6A-2B-6C. The codewords included in the codebook structure can be A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6. Encoding the combined feedback signals in the dual stream-single stream sending mode includes: encoding the combined feedback signals X ₀₁ , X ₀₂ , X ₃₁ , X ₃₂ , X ₃₀ , X ₄₁ , X ₄₂ , X ₄₀ , X ₅₁ , X ₅₂ , X ₅₀ , X ₆₁ , X ₆₂ and X ₆₀ in A1, B1, C1, C4, A2, C2, C5, A4, C3, C6, A5, A3, B2 and A6, respectively.

As shown in Table 1-23, the codebook structure that can be used in this embodiment is 6A-2B-6C. The codewords included in the codebook structure can be A1, A2, A3, A4, A5, A6, B1, B2, C1, C2, C3, C4, C5 and C6. Encoding the combined feedback signals in the dual stream-single stream sending mode includes: encoding the combined feedback signals X ₀₁ , X ₀₂ , X ₃₁ , X ₃₂ , X ₃₀ , X ₄₁ , X ₄₂ , X ₄₀ , X ₅₁ , X ₅₂ , X ₅₀ , X ₆₁ , X ₆₂ and X ₆₀ in A1, B1, C5, A4, C1, A2, A5, C2, A3, A6, C3, C6, B2 and C4, respectively.

The codebook structure and / or the conversion ratio used in the single stream-double stream and double stream-single stream modes are also applicable in a coding system that needs to use fourteen 10-bit codewords, for example, dual-carrier combined HARQ-ACK coding in mode a dual stream in which one carrier is not configured with MIMO, while the other carrier is configured with MIMO, or a coding system or subsystem that only needs to return fourteen 10-bit codewords in case of e when more carriers are configured.

(4) Coding scheme for combined dual stream dual stream send feedback signals

As shown in Table 1-24, the codebook structure that can be used in this embodiment is 6A-6B-6C-6D. The code words included in the codebook structure can be A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1, C2, C3, C4, C5, C6, D1, D2 , D3, D4, D5 and D6. Encoding the combined feedback signals in the dual stream-dual stream sending mode includes: encoding the combined feedback signals X ₀₃ , X ₀₄ , X ₀₅ , X ₀₆ , X ₃₀ , X ₃₃ , X ₃₄ , X ₃₅ , X ₃₆ , X ₄₀ , X ₄₃ , X ₄₄ , X ₄₅ , X ₄₆ , X ₅₀ , X ₅₃ , X ₅₄ , X ₅₅ , X ₅₆ , X ₆₀ , X ₆₃ , X ₆₄ , X _65, and X ₆₆ in C1, C2, C3, C4, A1, B4, B5, B6, D1, A2, D5, D3, B3, C6, A3, D6, B2, D2, C5, A4, B1, A6, A5 and D4, respectively.

As shown in table 1-25, the codebook structure that can be used in this embodiment is 6A-6B-6C-6D. The code words included in the codebook structure can be A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, B5, B6, C1, C2, C3, C4, C5, C6, D1, D2 , D3, D4, D5 and D6. Encoding the combined feedback signals in the dual stream-dual stream sending mode includes: encoding the combined feedback signals X ₀₃ , X ₀₄ , X ₀₅ , X ₀₆ , X ₃₀ , X ₃₃ , X ₃₄ , X ₃₅ , X ₃₆ , X ₄₀ , X ₄₃ , X ₄₄ , X ₄₅ , X ₄₆ , X ₅₀ , X ₅₃ , X ₅₄ , X ₅₅ , X ₅₆ , X ₆₀ , X ₆₃ , X ₆₄ , X _65, and X ₆₆ in B1, B2, B3, B4, A1, D4, B5, D2, D1, A2, A5, D3, B6, C6, A3, D6, A6, C3, C5, A4, D5, C2, C1 and C4, respectively.

The codebook structure and / or the conversion ratio used in the dual-stream-double-stream mode is also applicable in a coding system that needs to use twenty-four 10-bit codewords, for example a system or coding subsystem that only needs to return twenty-four 10-bit codewords when more carriers are configured.

The coding schemes in send modes single stream-single stream, single stream-double stream, double stream-single stream and double stream-double stream, respectively, are described in the above four parts. The signal spaces of the other sending modes are subsets of the four signal spaces, so that the coding schemes in other sending modes can be easily derived in accordance with the four signal spaces.

In particular, the codebook structure corresponding to the single stream-DTX send mode is a subset of the intersection between the codebook structure corresponding to the single stream-single stream send mode and the codebook structure corresponding to the single stream-double stream send mode, codebook structure, the corresponding DTX-single stream sending mode is a subset of the intersection between the codebook structure corresponding to the single-stream-single stream sending mode and the a codebook corresponding to a dual-stream-single stream sending mode, a codebook structure corresponding to a dual-stream-DTX sending mode is a subset of the intersection between a codebook structure corresponding to a dual-stream-single-stream sending mode and a codebook structure corresponding to a double-stream-single-stream sending mode a stream is a double stream, and the codebook structure corresponding to the sending mode of the DTX double stream is a subset of the intersection between the codebook structure corresponding to the mode tpravki single dual-stream flow, and the structure of the codebook corresponding to the dispatch mode of the double-flow dual stream.

Schemes in accordance with an embodiment of the present invention are further illustrated below by way of a specific example.

In this embodiment, for a conversion relationship between the sending modes used and the types of codebook structures, reference is made to table 1-26.

Table 1-26
Transformation relation between sending modes and types of codebook structures used in the first embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream 2A-2B-2C-2D Coding Scheme 1 for Single Stream-Single Stream Mode Dual Stream - Single Stream 6A-3C-3D-E-F Coding scheme 1 for dual stream-single stream mode Single Stream - Double Stream 6A-3C-3D-E-F Coding Scheme 1 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream 6A-6B-6C-6D Coding scheme 1 for dual stream dual stream mode

Table 1-26 sets the type of codebook structure used in each mode and the corresponding coding scheme. Additionally, you need to evaluate the code words in the codebook structure corresponding to each mode, that is, assign a specific 10-bit sequence 0-1.

In Table 1-26, the types of codebook structures corresponding to different sending modes may be the same, which does not necessarily mean that the same specific codewords are used, but only means that each corresponding codebook structure has the same code distance relationships. In the future, this is one and the same. Moreover, the same codeword symbol used in the corresponding codebook structures in different sending modes does not necessarily correspond to the same codeword. For example, the codeword A1 in the codebook structure used in the single stream-DTX mode is not necessarily the same as the codeword A1 in the codebook structure used in the dual-stream DTX mode.

For example, signals X ₀₁ and X ₀₂ simultaneously belong to the single stream-single stream mode and the double stream-single stream mode. In the coding schemes shown in table 1-26, referring to tables 1-15, 1-18, 1-21 and 1-24, certain codewords corresponding to X ₀₁ and X ₀₂ are depicted as C1 and D1 in single stream mode -single stream and are depicted as E1 and F1 in dual-stream-single-stream mode. However, regardless of the way it is shown, the codebook structure consisting of two codewords is equivalent to AB, that is, the type of codebook structure of the codebook structure consisting of two codewords is AB. The symbol used for a particular sequence of codewords is determined by the ratio of the code distance of the codeword in the corresponding codebook structure.

“-” in the above tables represents that in the type of codebook structure, each signal in mode can be arbitrarily converted into one codeword in the codebook structure. However, different signals are converted to different codewords. In the following tables, “-” represents the same meaning, a description of which is omitted.

In accordance with the conversion ratio between sending modes and types of codebook structures, as well as applicable coding schemes, the combined feedback signal X _ij is encoded. For the conversion relationship between X _ij and codeword values, see Table 1-27. The 10-bit sequence 0-1 in Table 1-27 includes codeword values in the codebook structure.

Table 1-27
Conversion ratio between X _ij  and codeword values X ₀₁ one one one one one 0 0 0 0 0 X ₀₂ 0 0 0 0 0 one one one one one X ₀₃ one one one one one 0 0 one 0 0 X ₀₄ one one one 0 0 one one 0 one 0 X ₀₅ 0 0 one one 0 one 0 0 0 one X ₀₆ 0 one 0 0 0 0 one one 0 one X ₁₀ one one one one one one one one one one X ₁₁ one 0 one 0 one 0 one 0 one 0 X ₁₂ one one 0 0 one one 0 0 one one X ₁₃ 0 0 0 one one 0 one 0 one 0 X ₁₄ one 0 one 0 one 0 one 0 0 one X ₁₅ one one 0 one 0 0 0 0 one one X ₁₆ one 0 0 0 one one 0 one one one X ₂₀ 0 0 0 0 0 0 0 0 0 0 X ₂₁ 0 0 one one 0 0 one one 0 0 X ₂₂ 0 one 0 one 0 one 0 one 0 one X ₂₃ one 0 0 one 0 one one one 0 0 X ₂₄ 0 0 one 0 one one one one 0 0 X ₂₅ 0 one 0 one 0 one 0 one one 0 X ₂₆ 0 one one 0 one 0 0 0 one one X ₃₀ one 0 one 0 one one one one 0 one X ₃₁ 0 0 0 0 one one 0 0 one 0 X ₃₂ 0 one 0 one one one one one 0 0 X ₃₃ one 0 one one one one 0 0 one 0 X ₃₄ one 0 one one 0 0 one one one one X ₃₅ one one 0 one one one one 0 0 one X ₃₆ 0 0 0 0 0 one one 0 one one X ₄₀ one one 0 one 0 one 0 one one one X ₄₁ one one one 0 0 one one 0 one 0 X ₄₂ one one 0 0 one 0 one one one 0 X ₄₃ one one one 0 0 0 0 0 0 one X ₄₄ one one 0 0 one 0 one one one 0 X ₄₅ one 0 0 0 0 one 0 one 0 0 X ₄₆ one 0 0 0 one 0 0 0 one one X ₅₀ 0 one one one one 0 one 0 one one X ₅₁ 0 0 one one 0 one 0 0 0 one X ₅₂ 0 0 0 one one 0 0 one 0 one X ₅₃ 0 one one one 0 one one one 0 0 X ₅₄ 0 0 one 0 one 0 one 0 0 0 X ₅₅ 0 0 0 one one 0 0 one 0 one X ₅₆ 0 0 0 one one one one one one 0 X ₆₀ one 0 0 one 0 0 one 0 0 0 X ₆₁ 0 one one 0 0 0 0 one 0 0 X ₆₂ one 0 one 0 0 0 0 0 one one X ₆₃ 0 one 0 one 0 0 0 0 one 0 X ₆₄ 0 0 one 0 0 0 0 one one 0 X ₆₅ 0 one 0 0 one one 0 0 0 0 X ₆₆ 0 one one 0 one one 0 one one one

A specific example is given in table 1-27. In the example, the codebook structure corresponding to the signal in each sending mode corresponds to the type of codebook structure in table 1-26, that is, the code distance matrix for the codebook structure is the same as the code distance matrix for the type of codebook structure in table 1-26 . The conversion ratio between the signal and the codeword corresponds to the coding scheme in Table 1-26, that is, with respect to the conversion, the matrix of code distances of the signal is the same as the matrix of code distances of the signal in the coding scheme, which is shown in Table 1-26. This embodiment is not limited to the conversion ratio in table 1-27. Any transformation relation obtained by a simple change based on table 1-27 is also included in the scope of this embodiment, for example, the sequences among the columns are randomly changed based on table 1-27, or the negation is performed on the value of some column (1 changes to 0 or 0 changes to 1).

Table 1-27 shows the conversion relationship between the combined signals and codewords to be used in the encoder submodule. Because of this, after receiving the signal, the encoder submodule searches the code word in the table corresponding to the combined signal, and then outputs this code word.

In this embodiment, a method is provided for encoding two-carrier feedback signals in the DC-MIMO mode, in which a single code channel is used, so that unproductive power consumption is saved and the CM value of the system is not affected, thereby improving system performance. Furthermore, in this embodiment, a suitable codebook structure and a conversion relationship between the feedback signal and the codeword are selected in accordance with the BER and the costs of the detection error in order to minimize the cost of the signal detection error and increase the data transfer efficiency in the system.

A second embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

The difference between this embodiment and the first embodiment of the method for encoding the combined feedback signal is with respect to the conversion between sending modes and types of codebook structures. For the conversion relationship between sending modes and types of codebook structures in this embodiment, reference may be made to table 1-28.

Table 1-28
Transformation relation between sending modes and types of codebook structures used in the second embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream 2A-2B-2C-2D Coding Scheme 1 for Single Stream-Single Stream Mode Dual Stream - Single Stream 6A-2B-6C Coding scheme 2 for dual stream-single stream mode Single Stream - Double Stream 6A-2B-6C Encoding Scheme 2 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream 6A-6B-6C-6D Coding scheme 1 for dual stream dual stream mode

The circuit only needs 24 codewords. In accordance with a conversion relationship between sending modes and codebook structures, in this embodiment, a conversion relationship is provided between the combined feedback signals and codewords, which can be accessed in Table 1-29.

Additionally, in this embodiment, values of 24 codewords are provided, which can be accessed in Table 1-30.

Table 1-30
Codewords and Codeword Values A1 one one one one one one one one one one A2 0 0 one one 0 0 one one 0 0 A3 one one 0 0 0 one one 0 0 0 A4 one 0 0 one 0 0 0 0 one one A5 0 one 0 0 one 0 0 one one 0 A6 0 0 one 0 one one 0 0 0 one C1 one one one one one 0 0 0 0 0 C2 0 one 0 one 0 one 0 one 0 one C3 0 one one 0 0 0 one 0 one one C4 one 0 one 0 0 one 0 one one 0 C5 0 0 0 one one one one 0 one 0 C6 one 0 0 0 one 0 one one 0 one B1 0 0 0 0 0 0 0 0 0 0 B2 one one 0 0 one one 0 0 one one B3 0 0 one one one 0 0 one one one B4 0 one one 0 one one one one 0 0 B5 one 0 one one 0 one one 0 0 one B6 one one 0 one 0 0 one one one 0 D1 0 0 0 0 0 one one one one one D2 one 0 one 0 one 0 one 0 one 0 D3 one 0 0 one one one 0 one 0 0 D4 0 one 0 one one 0 one 0 0 one D5 one one one 0 0 0 0 one 0 one D6 0 one one one 0 one 0 0 one 0

The conversion ratio between X _ij and the values of the code words is obtained in accordance with tables 1-29 and 1-30 and is shown in table 1-31.

Table 1-31
Conversion ratio between X _ij  and codeword values X ₀₁ one one one one one 0 0 0 0 0 X ₀₂ 0 0 0 0 0 one one one one one X ₀₃ one one 0 0 0 one one 0 0 0 X ₀₄ one 0 0 one 0 0 0 0 one one X ₀₅ 0 one 0 0 one 0 0 one one 0 X ₀₆ 0 0 one 0 one one 0 0 0 one X ₁₀ one one one one one one one one one one X ₁₁ one 0 one 0 one 0 one 0 one 0 X ₁₂ one one 0 0 one one 0 0 one one X ₁₃ one one one one one 0 0 0 0 0 X ₁₄ 0 one 0 one 0 one 0 one 0 one X ₁₅ 0 one one 0 0 0 one 0 one one X ₁₆ 0 0 one one 0 0 one one 0 0 X ₂₀ 0 0 0 0 0 0 0 0 0 0 X ₂₁ 0 0 one one 0 0 one one 0 0 X ₂₂ 0 one 0 one 0 one 0 one 0 one X ₂₃ one 0 one 0 0 one 0 one one 0 X ₂₄ 0 0 0 one one one one 0 one 0 X ₂₅ one 0 0 0 one 0 one one 0 one X ₂₆ 0 0 one one one 0 0 one one one X ₃₀ 0 one one 0 0 0 one 0 one one X ₃₁ one one one one one one one one one one X ₃₂ one 0 0 one 0 0 0 0 one one X ₃₃ 0 one one one 0 one 0 0 one 0 X ₃₄ 0 0 0 0 0 one one one one one X ₃₅ one 0 one 0 one 0 one 0 one 0 X ₃₆ 0 0 one one one 0 0 one one one X ₄₀ one 0 one 0 0 one 0 one one 0 X ₄₁ 0 0 one one 0 0 one one 0 0 X ₄₂ 0 one 0 0 one 0 0 one one 0 X ₄₃ 0 0 0 0 0 0 0 0 0 0 X ₄₄ one 0 one one 0 one one 0 0 one X ₄₅ one one one 0 0 0 0 one 0 one X ₄₆ 0 0 one one 0 0 one one 0 0 X ₅₀ 0 0 0 one one one one 0 one 0 X ₅₁ one one 0 0 0 one one 0 0 0 X ₅₂ 0 0 one 0 one one 0 0 0 one X ₅₃ one one 0 0 one one 0 0 one one X ₅₄ 0 one 0 one one 0 one 0 0 one X ₅₅ 0 one one 0 one one one one 0 0 X ₅₆ one one one one one one one one one one X ₆₀ one 0 0 0 one 0 one one 0 one X ₆₁ 0 one 0 one 0 one 0 one 0 one X ₆₂ one 0 0 one one one 0 one 0 0 X ₆₃ one 0 0 one one one 0 one 0 0 X ₆₄ 0 one 0 one 0 one 0 one 0 one X ₆₅ one one one one one 0 0 0 0 0 X ₆₆ one one 0 one 0 0 one one one 0

A specific example is given in table 1-31. In the example, the codebook structure corresponding to the signal in each sending mode corresponds to the type of codebook structure in table 1-28, that is, the code distance matrix for the codebook structure is the same as the code distance matrix for the type of codebook structure in table 1-28 . The conversion ratio between the signal and the codeword corresponds to the coding scheme in table 1-28, that is, with respect to the conversion, the code distance matrix of the signal is the same as the code distance matrix of the signal in the coding scheme, which is shown in table 1-28, i.e. in each scheme provided in table 1-29, is a coding scheme in table 1-28 or an equivalent coding scheme. This embodiment is not limited to the conversion ratio in table 1-31. Any transformation relation obtained by a simple change based on table 1-31 is also included in the scope of this embodiment, for example, the sequences among the columns are randomly changed based on table 1-31, or the negation is performed on the value of some column.

A third embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

The difference between this embodiment and the first embodiment of the method for encoding the combined feedback signal is with respect to the conversion between sending modes and types of codebook structures. The conversion relationship between sending modes and types of codebook structures in this embodiment can be accessed in table 1-32.

Table 1-32
The conversion relationship between sending modes and types of codebook structures used in the third embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream A-B-5C-D Encoding Scheme 2 for Single Stream-Single Stream Mode Dual Stream - Single Stream 6A-2B-6C Coding scheme 2 for dual stream-single stream mode Single Stream - Double Stream 6A-2B-6C Encoding Scheme 2 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream 6A-6B-6C-6D Coding scheme 1 for dual stream dual stream mode

The circuit only needs 24 codewords. In accordance with a conversion relationship between sending modes and codebook structures, in this embodiment, a conversion relationship is provided between the combined feedback signals and codewords, which can be accessed in Table 1-33.

Additionally, in this embodiment, values of the desired 24 codewords are provided, which can be accessed in Table 1-30.

The conversion ratio between X _ij and the codeword values is obtained in accordance with tables 1-30 and 1-33 and is reflected in table 1-34.

Table 1-34
Conversion ratio between X _ij  and codeword values X ₀₁ one one one one one 0 0 0 0 0 X ₀₂ 0 0 0 0 0 one one one one one X ₀₃ one one 0 0 0 one one 0 0 0 X ₀₄ one 0 0 one 0 0 0 0 one one X ₀₅ 0 one 0 0 one 0 0 one one 0 X ₀₆ 0 0 one 0 one one 0 0 0 one X ₁₀ one one one one one one one one one one X ₁₁ 0 one 0 one 0 one 0 one 0 one X ₁₂ 0 one one 0 0 0 one 0 one one X ₁₃ one one one one one 0 0 0 0 0 X ₁₄ 0 one 0 one 0 one 0 one 0 one X ₁₅ 0 one one 0 0 0 one 0 one one X ₁₆ 0 0 one one 0 0 one one 0 0 X ₂₀ 0 0 0 0 0 0 0 0 0 0 X ₂₁ one 0 one 0 0 one 0 one one 0 X ₂₂ 0 0 0 one one one one 0 one 0 X ₂₃ one 0 one 0 0 one 0 one one 0 X ₂₄ 0 0 0 one one one one 0 one 0 X ₂₅ one 0 0 0 one 0 one one 0 one X ₂₆ 0 0 one one one 0 0 one one one X ₃₀ 0 one one 0 0 0 one 0 one one X ₃₁ one one one one one one one one one one X ₃₂ one 0 0 one 0 0 0 0 one one X ₃₃ 0 one one one 0 one 0 0 one 0 X ₃₄ 0 0 0 0 0 one one one one one X ₃₅ one 0 one 0 one 0 one 0 one 0 X ₃₆ 0 0 one one one 0 0 one one one X ₄₀ one 0 one 0 0 one 0 one one 0 X ₄₁ 0 0 one one 0 0 one one 0 0 X ₄₂ 0 one 0 0 one 0 0 one one 0 X ₄₃ 0 0 0 0 0 0 0 0 0 0 X ₄₄ one 0 one one 0 one one 0 0 one X ₄₅ one one one 0 0 0 0 one 0 one X ₄₆ 0 0 one one 0 0 one one 0 0 X ₅₀ 0 0 0 one one one one 0 one 0 X ₅₁ one one 0 0 0 one one 0 0 0 X ₅₂ 0 0 one 0 one one 0 0 0 one X ₅₃ one one 0 0 one one 0 0 one one X ₅₄ 0 one 0 one one 0 one 0 0 one X ₅₅ 0 one one 0 one one one one 0 0 X ₅₆ one one one one one one one one one one X ₆₀ one 0 0 0 one 0 one one 0 one X ₆₁ 0 one 0 one 0 one 0 one 0 one X ₆₂ one 0 0 one one one 0 one 0 0 X ₆₃ one 0 0 one one one 0 one 0 0 X ₆₄ 0 one 0 one 0 one 0 one 0 one X ₆₅ one one one one one 0 0 0 0 0 X ₆₆ one one 0 one 0 0 one one one 0

A specific example is shown in table 1-34. This embodiment is not limited to the conversion ratio in table 1-34. Any transformation relation obtained by a simple change based on table 1-34 is also included in the scope of this embodiment, for example, the sequences among the columns are randomly changed based on table 1-34, or the negation is performed on the value of some column.

A fourth embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

The difference between this embodiment and the first embodiment of the method for encoding the combined feedback signal is with respect to the conversion between sending modes and types of codebook structures. The conversion relationship between sending modes and types of codebook structures in this embodiment can be accessed in table 1-35.

Table 1-35
The conversion relationship between sending modes and types of codebook structures used in the fourth embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream 2A-2B-4C Coding Scheme 3 for Single Stream-Single Stream Mode Dual Stream - Single Stream 6A-2B-6C Coding scheme 3 for dual stream-single stream mode Single Stream - Double Stream 6A-2B-6C Encoding Scheme 2 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream 6A-6B-6C-6D Coding scheme 1 for dual stream dual stream mode

The circuit only needs 24 codewords. In accordance with a conversion relationship between sending modes and codebook structures, in this embodiment, a conversion relationship is provided between the combined feedback signals and codewords, which can be accessed in Table 1-36.

Additionally, in this embodiment, values of the desired 24 codewords are provided, which can be accessed in Table 1-30.

The conversion ratio between X _ij and the codeword values is obtained in accordance with tables 1-30 and 1-36 and is reflected in table 1-37.

Table 1-37
Conversion ratio between X _ij  and codeword values X ₀₁ 0 0 one one 0 0 one one 0 0 X ₀₂ one one 0 0 one one 0 0 one one X ₀₃ one one 0 0 0 one one 0 0 0 X ₀₄ one 0 0 one 0 0 0 0 one one X ₀₅ 0 one 0 0 one 0 0 one one 0 X ₀₆ 0 0 one 0 one one 0 0 0 one X ₁₀ one one one one one one one one one one X ₁₁ one one one one one 0 0 0 0 0 X ₁₂ 0 one 0 one 0 one 0 one 0 one X ₁₃ one one one one one 0 0 0 0 0 X ₁₄ 0 one 0 one 0 one 0 one 0 one X ₁₅ 0 one one 0 0 0 one 0 one one X ₁₆ 0 0 one one 0 0 one one 0 0 X ₂₀ 0 0 0 0 0 0 0 0 0 0 X ₂₁ 0 one one 0 0 0 one 0 one one X ₂₂ one 0 one 0 0 one 0 one one 0 X ₂₃ one 0 one 0 0 one 0 one one 0 X ₂₄ 0 0 0 one one one one 0 one 0 X ₂₅ one 0 0 0 one 0 one one 0 one X ₂₆ 0 0 one one one 0 0 one one one X ₃₀ 0 one one 0 0 0 one 0 one one X ₃₁ one one one one one 0 0 0 0 0 X ₃₂ one 0 0 one 0 0 0 0 one one X ₃₃ 0 one one one 0 one 0 0 one 0 X ₃₄ 0 0 0 0 0 one one one one one X ₃₅ one 0 one 0 one 0 one 0 one 0 X ₃₆ 0 0 one one one 0 0 one one one X ₄₀ one 0 one 0 0 one 0 one one 0 X ₄₁ one one one one one one one one one one X ₄₂ 0 one 0 0 one 0 0 one one 0 X ₄₃ 0 0 0 0 0 0 0 0 0 0 X ₄₄ one 0 one one 0 one one 0 0 one X ₄₅ one one one 0 0 0 0 one 0 one X ₄₆ 0 0 one one 0 0 one one 0 0 X ₅₀ 0 0 0 one one one one 0 one 0 X ₅₁ one one 0 0 0 one one 0 0 0 X ₅₂ 0 0 one 0 one one 0 0 0 one X ₅₃ one one 0 0 one one 0 0 one one X ₅₄ 0 one 0 one one 0 one 0 0 one X ₅₅ 0 one one 0 one one one one 0 0 X ₅₆ one one one one one one one one one one X ₆₀ one 0 0 0 one 0 one one 0 one X ₆₁ 0 one 0 one 0 one 0 one 0 one X ₆₂ 0 0 0 0 0 0 0 0 0 0 X ₆₃ one 0 0 one one one 0 one 0 0 X ₆₄ 0 one 0 one 0 one 0 one 0 one X ₆₅ one one one one one 0 0 0 0 0 X ₆₆ one one 0 one 0 0 one one one 0

A specific example is given in table 1-37. This embodiment is not limited to the conversion ratio in table 1-37. Any transformation relation obtained by a simple change based on table 1-37 is also included in the scope of this embodiment, for example, sequences among columns are randomly changed based on table 1-37, or negation is performed on the value of some column.

A fifth embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

The difference between this embodiment and the first embodiment of the method for encoding the combined feedback signal is with respect to the conversion between sending modes and types of codebook structures. The conversion relationship between sending modes and types of codebook structures in this embodiment can be consulted in table 1-38.

Table 1-38
Transformation relation between sending modes and types of codebook structures used in the fifth embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream 2A-2B-4C Coding Scheme 3 for Single Stream-Single Stream Mode Dual Stream - Single Stream 6A-2B-6C Coding scheme 3 for dual stream-single stream mode Single Stream - Double Stream 6A-2B-6C Encoding Scheme 3 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream 6A-6B-6C-6D Coding scheme 2 for dual stream dual stream mode

The circuit only needs 24 codewords. In accordance with a conversion relationship between sending modes and codebook structures, in this embodiment, a conversion relationship is provided between the combined feedback signals and codewords, which can be accessed in Table 1-39.

In addition, in this embodiment, values of the desired 24 codewords are provided, which can be accessed in Table 1-30.

The conversion ratio between X _ij and the codeword values is obtained in accordance with tables 1-30 and 1-39 and is reflected in table 1-40.

Table 1-40
Conversion ratio between X _ij  and codeword values X ₀₁ 0 0 one one 0 0 one one 0 0 X ₀₂ one one 0 0 one one 0 0 one one X ₀₃ 0 0 0 0 0 one one one one one X ₀₄ one 0 one 0 one 0 one 0 one 0 X ₀₅ one 0 0 one one one 0 one 0 0 X ₀₆ 0 one 0 one one 0 one 0 0 one X ₁₀ one one one one one one one one one one X ₁₁ one one one one one 0 0 0 0 0 X ₁₂ 0 one 0 one 0 one 0 one 0 one X ₁₃ one one one 0 0 0 0 one 0 one X ₁₄ 0 0 one one 0 0 one one 0 0 X ₁₅ one one 0 0 0 one one 0 0 0 X ₁₆ 0 one one one 0 one 0 0 one 0 X ₂₀ 0 0 0 0 0 0 0 0 0 0 X ₂₁ 0 one one 0 0 0 one 0 one one X ₂₂ one 0 one 0 0 one 0 one one 0 X ₂₃ one 0 0 one 0 0 0 0 one one X ₂₄ 0 one 0 0 one 0 0 one one 0 X ₂₅ 0 0 one 0 one one 0 0 0 one X ₂₆ one one 0 0 one one 0 0 one one X ₃₀ one one one one one 0 0 0 0 0 X ₃₁ 0 0 0 one one one one 0 one 0 X ₃₂ one 0 0 one 0 0 0 0 one one X ₃₃ 0 one one 0 one one one one 0 0 X ₃₄ one one one 0 0 0 0 one 0 one X ₃₅ one one 0 0 one one 0 0 one one X ₃₆ 0 0 0 0 0 0 0 0 0 0 X ₄₀ 0 one 0 one 0 one 0 one 0 one X ₄₁ one one one one one one one one one one X ₄₂ 0 one 0 0 one 0 0 one one 0 X ₄₃ 0 0 0 one one one one 0 one 0 X ₄₄ 0 0 one one one 0 0 one one one X ₄₅ 0 one one one 0 one 0 0 one 0 X ₄₆ 0 0 one 0 one one 0 0 0 one X ₅₀ 0 one one 0 0 0 one 0 one one X ₅₁ one one 0 0 0 one one 0 0 0 X ₅₂ 0 0 one 0 one one 0 0 0 one X ₅₃ one one 0 one 0 0 one one one 0 X ₅₄ one 0 0 0 one 0 one one 0 one X ₅₅ one one 0 0 0 one one 0 0 0 X ₅₆ 0 one 0 0 one 0 0 one one 0 X ₆₀ one 0 one 0 0 one 0 one one 0 X ₆₁ one 0 0 0 one 0 one one 0 one X ₆₂ 0 0 0 0 0 0 0 0 0 0 X ₆₃ one 0 one one 0 one one 0 0 one X ₆₄ 0 0 one one 0 0 one one 0 0 X ₆₅ one one one one one one one one one one X ₆₆ one 0 0 one 0 0 0 0 one one

A specific example is given in table 1-40. This embodiment is not limited to the conversion ratio in Table 1-40. Any conversion relation obtained by a simple change based on table 1-40 is also included in the scope of this embodiment, for example, the sequences among the columns are randomly changed based on table 1-40, or the negation is performed on the value of some column.

A sixth embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

The difference between this embodiment and the first embodiment of the method for encoding the combined feedback signal is with respect to the conversion between sending modes and types of codebook structures. The conversion relationship between sending modes and types of codebook structures in this embodiment can be accessed in table 1-41.

Table 1-41
Transformation relation between sending modes and types of codebook structures used in the sixth embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream A-B-5C-D Encoding Scheme 2 for Single Stream-Single Stream Mode Dual Stream - Single Stream 6A-3C-3D-E-F Coding scheme 1 for dual stream-single stream mode Single Stream - Double Stream 6A-3C-3D-E-F Coding Scheme 1 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream 6A-6B-6C-6D Coding scheme 1 for dual stream dual stream mode

The circuit only needs 24 codewords. In accordance with a conversion relationship between sending modes and codebook structures, in this embodiment, a specific example of a conversion relationship between combined feedback signals and codewords is provided, which can be accessed in Table 1-42.

Table 1-42
Conversion ratio between X _ij  and codeword values X ₀₁ one one one one one 0 0 0 0 0 X ₀₂ 0 0 0 0 0 one one one one one X ₀₃ one one one one one 0 0 one 0 0 X ₀₄ one one one 0 0 one one 0 one 0 X ₀₅ 0 0 one one 0 one 0 0 0 one X ₀₆ 0 one 0 0 0 0 one one 0 one X ₁₀ one one one one one one one one one one X ₁₁ 0 one 0 one 0 one 0 one 0 one X ₁₂ 0 one one 0 0 0 one 0 one one X ₁₃ 0 0 0 one one 0 one 0 one 0 X ₁₄ one 0 one 0 one 0 one 0 0 one X ₁₅ one one 0 one 0 0 0 0 one one X ₁₆ one 0 0 0 one one 0 one one one X ₂₀ 0 0 0 0 0 0 0 0 0 0 X ₂₁ one 0 one 0 0 one 0 one one 0 X ₂₂ 0 0 0 one one one one 0 one 0 X ₂₃ one 0 0 one 0 one one one 0 0 X ₂₄ 0 0 one 0 one one one one 0 0 X ₂₅ 0 one 0 one 0 one 0 one one 0 X ₂₆ 0 one one 0 one 0 0 0 one one X ₃₀ one 0 one 0 one one one one 0 one X ₃₁ 0 0 0 0 one one 0 0 one 0 X ₃₂ 0 one 0 one one one one one 0 0 X ₃₃ one 0 one one one one 0 0 one 0 X ₃₄ one 0 one one 0 0 one one one one X ₃₅ one one 0 one one one one 0 0 one X ₃₆ 0 0 0 0 0 one one 0 one one X ₄₀ one one 0 one 0 one 0 one one one X ₄₁ one one one 0 0 one one 0 one 0 X ₄₂ one one 0 0 one 0 one one one 0 X ₄₃ one one one 0 0 0 0 0 0 one X ₄₄ one one 0 0 one 0 one one one 0 X ₄₅ one 0 0 0 0 one 0 one 0 0 X ₄₆ one 0 0 0 one 0 0 0 one one X ₅₀ 0 one one one one 0 one 0 one one X ₅₁ 0 0 one one 0 one 0 0 0 one X ₅₂ 0 0 0 one one 0 0 one 0 one X ₅₃ 0 one one one 0 one one one 0 0 X ₅₄ 0 0 one 0 one 0 one 0 0 0 X ₅₅ 0 0 0 one one 0 0 one 0 one X ₅₆ 0 0 0 one one one one one one 0 X ₆₀ one 0 0 one 0 0 one 0 0 0 X ₆₁ 0 one one 0 0 0 0 one 0 0 X ₆₂ one 0 one 0 0 0 0 0 one one X ₆₃ 0 one 0 one 0 0 0 0 one 0 X ₆₄ 0 0 one 0 0 0 0 one one 0 X ₆₅ 0 one 0 0 one one 0 0 0 0 X ₆₆ 0 one one 0 one one 0 one one one

A specific example is shown in table 1-42. This embodiment is not limited to the conversion ratio in table 1-42. Any transformation relation obtained by a simple change based on table 1-42 is also included in the scope of this embodiment, for example, the sequences among the columns are randomly changed based on table 1-42, or the negation is performed on the value of some column.

A seventh embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

The difference between this embodiment and the first embodiment of the method for encoding the combined feedback signal is with respect to the conversion between sending modes and types of codebook structures. This content embodiment embraces a single-carrier feedback scheme configured with MIMO, and is slightly preferable to the first embodiment in terms of decoding performance. The codewords used are as follows.

Table 1-43
Conversion ratio between X _ij  and codeword values X ₀₁ one one one one one 0 0 0 0 0 X ₀₂ 0 0 0 one one one one 0 one 0 X ₀₃ one one one one one 0 0 one 0 0 X ₀₄ one one one 0 0 one one 0 one 0 X ₀₅ 0 0 one one 0 one 0 0 0 one X ₀₆ 0 one 0 0 0 0 one one 0 one X ₁₀ one one one one one one one one one one X ₁₁ 0 one 0 one 0 one 0 one 0 one X ₁₂ 0 one one 0 0 0 one 0 one one X ₁₃ 0 0 0 one one 0 one 0 one 0 X ₁₄ one 0 one 0 one 0 one 0 0 one X ₁₅ one one 0 one 0 0 0 0 one one X ₁₆ one 0 0 0 one one 0 one one one X ₂₀ 0 0 0 0 0 0 0 0 0 0 X ₂₁ one 0 one 0 0 one 0 one one 0 X ₂₂ 0 0 0 one one one one 0 one 0 X ₂₃ one 0 0 one 0 one one one 0 0 X ₂₄ 0 0 one 0 one one one one 0 0 X ₂₅ 0 one 0 one 0 one 0 one one 0 X ₂₆ 0 one one 0 one 0 0 0 one one X ₃₀ one 0 one 0 one one one one 0 one X ₃₁ 0 one 0 0 one one 0 0 0 0 X ₃₂ one 0 0 0 one 0 0 0 one one X ₃₃ one 0 one one one one 0 0 one 0 X ₃₄ one 0 one one 0 0 one one one one X ₃₅ one one 0 one one one one 0 0 one X ₃₆ 0 0 0 0 0 one one 0 one one X ₄₀ one one 0 one 0 one 0 one one one X ₄₁ one one one 0 0 one one 0 one 0 X ₄₂ one one 0 0 one 0 one one one 0 X ₄₃ one one one 0 0 0 0 0 0 one X ₄₄ one one 0 0 one 0 one one one 0 X ₄₅ one 0 0 0 0 one 0 one 0 0 X ₄₆ one 0 0 0 one 0 0 0 one one X ₅₀ 0 one one one one 0 one 0 one one X ₅₁ 0 0 one one 0 one 0 0 0 one X ₅₂ 0 0 0 one one 0 0 one 0 one X ₅₃ 0 one one one 0 one one one 0 0 X ₅₄ 0 0 one 0 one 0 one 0 0 0 X ₅₅ 0 0 0 one one 0 0 one 0 one X ₅₆ 0 0 0 one one one one one one 0 X ₆₀ one 0 0 one 0 0 one 0 0 0 X ₆₁ 0 0 one 0 0 0 0 one one 0 X ₆₂ 0 one one one 0 one one one 0 0 X ₆₃ 0 one 0 one 0 0 0 0 one 0 X ₆₄ 0 0 one 0 0 0 0 one one 0 X ₆₅ 0 one 0 0 one one 0 0 0 0 X ₆₆ 0 one one 0 one one 0 one one one

A specific example is given in table 1-43. This embodiment is not limited to the conversion ratio in table 1-43. Any transformation relation obtained by a simple change based on table 1-43 is also included in the scope of this embodiment, for example, the sequences among the columns are randomly changed based on table 1-43, or the negation is performed on the value of some column.

An eighth embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

This embodiment is the same as the first embodiment according to the type of codebook structure used in each send mode in the method for encoding the combined feedback signal. However, the difference between the two embodiments is that this embodiment also considers PRE / POST performance. The conversion relationship between sending modes and types of codebook structures in this embodiment can be consulted in table 1-44.

Table 1-44
Transformation relation between sending modes and types of codebook structures used in the eighth embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream 2A-2B-2C-2D Table 1-15, Coding Scheme 1 for Single Stream-Single Stream Mode Dual Stream - Single Stream 6A-3C-3D-E-F Table 1-21, Encoding Scheme 1 for Dual Stream-Single Stream Mode Single Stream - Double Stream 6A-3C-3D-E-F Table 1-18, Coding Scheme 1 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream 6A-6B-6C-6D Table 1-24, Coding Scheme 1 for Dual Stream-Dual Stream Mode

A specific example is given. The codebook structure used in each sending mode corresponds to the type of codebook structure and conversion relation provided in Table 1-44, and at the same time provides the preferred performance when PRE / POST mode is applied. The conversion relationship between X _ij and codeword values can be consulted in table 1-45.

Table 1-45
Conversion ratio between X _ij  and codeword values D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ one 0 0 0 one 0 0 0 one one D / AN X ₀₄ 0 one 0 0 0 0 one one 0 one D / NA X ₀₅ 0 0 0 one one one one one one 0 D / nn X ₀₆ one one one one one 0 0 one 0 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one 0 one 0 one 0 one 0 one 0 A / n X ₁₂ one one 0 0 one one 0 0 one one A / AA X ₁₃ one 0 one 0 0 one one 0 0 0 A / AN X ₁₄ one 0 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 0 one one one 0 one 0 0 one A / nn X ₁₆ 0 one one one 0 one 0 0 one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 0 one one 0 0 one one 0 0 N / N X ₂₂ 0 one 0 one 0 one 0 one 0 one N / aa X ₂₃ one one 0 one 0 0 one 0 one 0 N / AN X ₂₄ one one 0 0 0 one 0 one one 0 N / NA X ₂₅ 0 one one 0 one 0 one 0 one 0 N / NN X ₂₆ 0 0 one 0 one one 0 one 0 one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 0 0 0 one one 0 0 one 0 AA / N X ₃₂ 0 one 0 one one one one one 0 0 AA / AA X ₃₃ 0 one one 0 one one 0 one one one AA / AN X ₃₄ one 0 one one 0 0 one one one one AA / NA X ₃₅ one one 0 one one one one 0 0 one AA / NN X ₃₆ 0 one one one 0 one one one 0 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one one 0 0 one one 0 one 0 AN / N X ₄₂ one one 0 0 one 0 one one one 0 AN / AA X ₄₃ 0 0 0 one one 0 0 one 0 one AN / AN X ₄₄ one one one 0 0 0 0 0 0 one AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ 0 0 one one 0 one 0 0 0 one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 one one 0 one 0 0 0 one NA / N X ₅₂ 0 0 0 one one 0 0 one 0 one NA / AA X ₅₃ one one 0 0 one 0 one one one 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ one 0 one one one one 0 0 one 0 NA / NN X ₅₆ one one one 0 0 one one 0 one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 one one 0 0 0 0 one 0 0 NN / N X ₆₂ one 0 one 0 0 0 0 0 one one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 0 0 one one 0 NN / NA X ₆₅ 0 one 0 0 one one 0 0 0 0 NN / NN X ₆₆ 0 0 0 0 0 one one 0 one one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

To further improve performance in PRE / POST send mode, PRE / POST can use new codewords. A pair of real additional codewords are provided in table 1-46.

Table 1-46
A pair of new PRE / POST codewords applicable in the schemes of the eighth embodiment PRE / POST Indication Information Pre 0 0 one one 0 0 0 one one one Post one one 0 0 one one one 0 0 0

A specific example is given in table 1-45. This embodiment is not limited to the conversion ratio in table 1-45. Any conversion relation obtained by a simple change based on table 1-45 is also included in the scope of this embodiment, for example, the sequences among the columns are randomly changed based on table 1-45, or the negation is performed on the value of some column. In addition, an equivalent change or equivalent encoding and conversion is performed on the codebook structure in each sending mode, which is also included in the scope of protection, provided that the type of codebook structure does not change in each mode.

The new PRE / POST codewords provided in Table 1-46 have this characteristic: the minimum code distance is at least 4 after the PRE / POST codewords are enabled in single stream-DTX, DTX-single stream, dual stream modes -DTX and DTX-dual stream.

It is assumed that when Node B schedules data on both carriers in a dual carrier, PRE / POST is not used during HARQ-ACK signal detection, and when Node B schedules data on only one carrier in a dual carrier, PRE / POST is used during signal detection HARQ-ACK. Therefore, the circuit having the best performance is obtained in accordance with tables 1-44 and 1-45, as shown in table 1-47.

Table 1-47
Conversion ratio between X _ij  and codeword values D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ one 0 0 0 one 0 0 0 one one D / AN X ₀₄ 0 one 0 0 0 one one 0 0 one D / NA X ₀₅ 0 0 0 one one one one one one 0 D / nn X ₀₆ one one one one one one 0 0 0 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one 0 one 0 one 0 one 0 one 0 A / n X ₁₂ one one 0 0 one one 0 0 one one A / AA X ₁₃ one 0 one 0 0 0 one one 0 0 A / AN X ₁₄ one 0 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 0 one one one 0 one 0 0 one A / nn X ₁₆ 0 one one one 0 0 0 one one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 0 one one 0 0 one one 0 0 N / N X ₂₂ 0 one 0 one 0 one 0 one 0 one N / aa X ₂₃ one one 0 one 0 0 one 0 one 0 N / AN X ₂₄ one one 0 0 0 one 0 one one 0 N / NA X ₂₅ 0 one one 0 one 0 one 0 one 0 N / NN X ₂₆ 0 0 one 0 one one 0 one 0 one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 0 one 0 0 one 0 0 one 0 AA / N X ₃₂ 0 one one one 0 one one one 0 0 AA / AA X ₃₃ 0 one one 0 one one 0 one one one AA / AN X ₃₄ one 0 one one 0 one one 0 one one AA / NA X ₃₅ one one 0 one one 0 one one 0 one AA / NN X ₃₆ 0 one one one 0 one one one 0 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one 0 0 one one one 0 one 0 AN / N X ₄₂ one one one 0 0 0 one one one 0 AN / AA X ₄₃ 0 0 0 one one one 0 0 0 one AN / AN X ₄₄ one one one 0 0 0 0 0 0 one AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ 0 0 one one 0 0 0 one 0 one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 0 one one one 0 0 0 one NA / N X ₅₂ 0 0 one one 0 0 0 one 0 one NA / AA X ₅₃ one one 0 0 one one one 0 one 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ one 0 one one one 0 0 one one 0 NA / NN X ₅₆ one one one 0 0 0 one one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 one 0 0 one 0 0 one 0 0 NN / N X ₆₂ one 0 0 0 one 0 0 0 one one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 one 0 0 one 0 NN / NA X ₆₅ 0 one 0 0 one 0 0 one 0 0 NN / NN X ₆₆ 0 0 0 0 0 0 one one one one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

A ninth embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

The method for encoding a combined feedback signal in this embodiment uses a different combination of types of codebook structures. However, when certain codewords are specified, this embodiment also takes into account PRE / POST performance. The conversion relationship between sending modes and types of codebook structures in this embodiment can be accessed in table 1-48.

Table 1-48
Transformation relation between sending modes and types of codebook structures used in the ninth embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream 2A-2B-4C Table 1-17, Coding Scheme 3 for Single Stream-Single Stream Dual flow 6A-2B-6C Table 1-23, Scheme 3 Single stream coding for dual-stream-single-stream mode Single Stream - Double Stream 6A-3C-3D-E-F Table 1-18, Coding Scheme 1 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream 6A-6B-6C-6D Table 1-24, Coding Scheme 1 for Dual Stream-Dual Stream Mode

Certain codewords that satisfy the restrictions in Table 1-48 are shown in Table 1-49.

Table 1-49
Conversion ratio between X _ij  and codeword values D / a X ₀₁ 0 0 0 0 0 0 one one one one D / n X ₀₂ one one one one one one 0 0 0 0 D / AA X ₀₃ one 0 0 0 one 0 0 0 one one D / AN X ₀₄ 0 one 0 0 0 0 one one 0 one D / NA X ₀₅ 0 0 0 one one one one one one 0 D / nn X ₀₆ one one one one one 0 0 one 0 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one one 0 one 0 0 0 0 one one A / n X ₁₂ 0 0 one one one 0 one 0 0 one A / AA X ₁₃ one 0 one 0 0 one one 0 0 0 A / AN X ₁₄ one 0 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 0 one one one 0 one 0 0 one A / nn X ₁₆ 0 one one one 0 one 0 0 one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 0 one 0 one one one 0 0 N / N X ₂₂ 0 one one 0 0 one 0 one 0 one N / aa X ₂₃ one one 0 one 0 0 one 0 one 0 N / AN X ₂₄ one one 0 0 0 one 0 one one 0 N / NA X ₂₅ 0 one one 0 one 0 one 0 one 0 N / NN X ₂₆ 0 0 one 0 one one 0 one 0 one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 one one 0 0 0 0 one 0 0 AA / N X ₃₂ one one one 0 0 one one 0 one 0 AA / AA X ₃₃ 0 one one 0 one one 0 one one one AA / AN X ₃₄ one 0 one one 0 0 one one one one AA / NA X ₃₅ one one 0 one one one one 0 0 one AA / NN X ₃₆ 0 one one one 0 one one one 0 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one 0 one one one 0 0 one one 0 AN / N X ₄₂ 0 0 one one 0 one 0 0 0 one AN / AA X ₄₃ 0 0 0 one one 0 0 one 0 one AN / AN X ₄₄ one one one 0 0 0 0 0 0 one AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ 0 0 one one 0 one 0 0 0 one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 one 0 one one one one one 0 0 NA / N X ₅₂ one one 0 0 one 0 0 0 0 one NA / AA X ₅₃ one one 0 0 one 0 one one one 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ one 0 one one one one 0 0 one 0 NA / NN X ₅₆ one one one 0 0 one one 0 one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 0 0 0 one one 0 0 one 0 NN / N X ₆₂ 0 one 0 0 0 one one 0 0 one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 0 0 one one 0 NN / NA X ₆₅ 0 one 0 0 one one 0 0 0 0 NN / NN X ₆₆ 0 0 0 0 0 one one 0 one one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

To further improve performance in PRE / POST send mode, PRE / POST can use new codewords. A pair of real additional codewords are provided in table 1-50.

Table 1-50
A pair of new PRE / POST codewords applicable in the schemes of the ninth embodiment PRE / POST Indication Information Pre 0 one one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one one 0

A specific example is shown in table 1-49. This embodiment is not limited to the conversion ratio in table 1-49. Any transformation relation obtained by a simple change based on table 1-49 is also included in the scope of this embodiment, for example, sequences among columns are randomly changed based on table 1-49, or negation is performed on the value of some column. In addition, an equivalent change or equivalent encoding and conversion is performed on the codebook structure in each sending mode, which is also included in the scope of protection, provided that the type of codebook structure does not change in each mode.

The new PRE / POST codewords provided in Table 1-50 have this characteristic: the minimum code distance is at least 4 after the PRE / POST codewords are enabled in single stream-DTX, DTX-single stream, double stream -DTX and DTX-dual stream.

It is assumed that when Node B schedules data on both carriers in a dual carrier, PRE / POST is not used during HARQ-ACK signal detection, and when Node B schedules data on only one carrier in a dual carrier, PRE / POST is used during signal detection HARQ-ACK. Therefore, the circuit having the best performance is obtained in accordance with tables 1-48 and 1-49, as shown in table 1-51.

Table 1-51
Conversion ratio between X _ij  and codeword values D / a X ₀₁ 0 0 0 0 0 0 one one one one D / n X ₀₂ one one one one one one 0 0 0 0 D / AA X ₀₃ one 0 0 0 one 0 0 0 one one D / AN X ₀₄ 0 one 0 0 0 one one 0 0 one D / NA X ₀₅ 0 0 0 one one one one one one 0 D / nn X ₀₆ one one one one one one 0 0 0 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one one 0 one 0 0 0 0 one one A / n X ₁₂ 0 0 one one one 0 one 0 0 one A / AA X ₁₃ one 0 one 0 0 0 one one 0 0 A / AN X ₁₄ one 0 0 one 0 one 0 one 0 one A / NA X ₁₅ 0 0 one one one 0 one 0 0 one A / nn X ₁₆ 0 one one one 0 0 0 one one one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 0 one 0 one one one 0 0 N / N X ₂₂ 0 one one 0 0 one 0 one 0 one N / aa X ₂₃ one one 0 one 0 0 one 0 one 0 N / AN X ₂₄ one one 0 0 0 one 0 one one 0 N / NA X ₂₅ 0 one one 0 one 0 one 0 one 0 N / NN X ₂₆ 0 0 one 0 one one 0 one 0 one AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 one 0 0 one 0 0 one 0 0 AA / N X ₃₂ one one 0 0 one one one 0 one 0 AA / AA X ₃₃ 0 one one 0 one one 0 one one one AA / AN X ₃₄ one 0 one one 0 one one 0 one one AA / NA X ₃₅ one one 0 one one 0 one one 0 one AA / NN X ₃₆ 0 one one one 0 one one one 0 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one 0 one one one 0 0 one one 0 AN / N X ₄₂ 0 0 0 one one one 0 0 0 one AN / AA X ₄₃ 0 0 0 one one one 0 0 0 one AN / AN X ₄₄ one one one 0 0 0 0 0 0 one AN / NA X ₄₅ one 0 0 0 0 one 0 one 0 0 AN / NN X ₄₆ 0 0 one one 0 0 0 one 0 one NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 one one one 0 one one one 0 0 NA / N X ₅₂ one one one 0 0 0 0 0 0 one NA / AA X ₅₃ one one 0 0 one one one 0 one 0 NA / AN X ₅₄ 0 0 one 0 one 0 one 0 0 0 NA / NA X ₅₅ one 0 one one one 0 0 one one 0 NA / NN X ₅₆ one one one 0 0 0 one one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 0 one 0 0 one 0 0 one 0 NN / N X ₆₂ 0 one 0 0 0 one one 0 0 one NN / AA X ₆₃ 0 one 0 one 0 0 0 0 one 0 NN / AN X ₆₄ 0 0 one 0 0 one 0 0 one 0 NN / NA X ₆₅ 0 one 0 0 one 0 0 one 0 0 NN / NN X ₆₆ 0 0 0 0 0 0 one one one one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

A tenth embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

In this embodiment, a new type of codebook structure is intended for dual-stream-dual-stream mode. Code words in the type of codebook structure come from a 32-bit codebook structure having a minimum code distance of 4. The codebook structure consists of 16 pairs of reverse codes, which are expressed as G1 ~ G16 and H1 ~ H16. Hi is the inverse of Gi, that is, the code distance is 10. The relationships between the codewords G and H are shown in Tables 1-7 to 1-9.

24 codewords are needed in dual-stream-double-stream sending mode, and a total of 26 codewords are needed if PRE / POST codewords are included. 26 codewords can be selected from G1 ~ G16 and H1 ~ H16.

The method for encoding a combined feedback signal in this embodiment uses a different combination of types of codebook structures. However, when certain codewords are specified, all codewords related to the HARQ-ACK specified in version R8 of the TS25.212 specification in 3GPP, including PRE / POST, are compatible. The conversion relationship between sending modes and types of codebook structures can be addressed in table 1-52.

Table 1-52
The conversion relationship between sending modes and types of codebook structures used in the tenth embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream 2A-2B-2C-2D Table 1-15, Coding Scheme 1 for Single Stream-Single Stream Mode Dual Stream - Single Stream {A1, A2, A5, A6} U2B-3C-3D-E-F Table 1-53, Encoding Scheme 4 for Dual Stream-Single Stream Mode Single Stream - Double Stream 6A-2B-2C-DU {D3 ~ D5} Table 1-54, Encoding Scheme 4 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream {G7 ~ G16} U {H1 ~ H8} U {H9 ~ H16} Table 1-55, Encoding Scheme 3 for Dual Stream-Dual Stream Mode

Coding and conversion schemes in the types of codebook structures described in the above table are shown in Tables 1-53, 1-54, and 1-55, respectively.

Certain codewords that satisfy the restrictions in Table 1-52 are shown in Table 1-56.

Table 1-56
Conversion ratio between X _ij  and codeword values D / a X ₀₁ one one one one one 0 0 0 0 0 D / n X ₀₂ 0 0 0 0 0 one one one one one D / AA X ₀₃ 0 0 one one one one 0 0 0 one D / AN X ₀₄ 0 one one 0 0 one one one 0 0 D / NA X ₀₅ 0 0 0 0 one 0 one one one one D / nn X ₀₆ one one one 0 one 0 0 0 one 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one 0 one 0 one 0 one 0 one 0 A / n X ₁₂ one one 0 0 one one 0 0 one one A / AA X ₁₃ one one 0 0 one one one 0 0 one A / AN X ₁₄ 0 one one one 0 0 one 0 one one A / NA X ₁₅ one 0 one one one 0 one one 0 0 A / nn X ₁₆ one 0 one 0 0 0 one 0 0 one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ 0 0 one one 0 0 one one 0 0 N / N X ₂₂ 0 one 0 one 0 one 0 one 0 one N / aa X ₂₃ one 0 0 one one 0 0 0 one one N / AN X ₂₄ one 0 0 one 0 one one 0 one 0 N / NA X ₂₅ one one 0 one 0 0 0 one 0 one N / NN X ₂₆ one one 0 0 0 0 one one one 0 AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ 0 one 0 one 0 0 0 0 one 0 AA / N X ₃₂ 0 one one one 0 one one one 0 0 AA / AA X ₃₃ one 0 0 0 0 one 0 one 0 0 AA / AN X ₃₄ 0 0 one one 0 0 one one one 0 AA / NA X ₃₅ one one 0 one one 0 one one 0 one AA / NN X ₃₆ one one 0 0 0 0 one one one 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ 0 0 0 one one one 0 0 0 one AN / N X ₄₂ 0 0 one one 0 0 0 one 0 one AN / AA X ₄₃ 0 0 0 0 0 0 0 0 0 one AN / AN X ₄₄ one 0 one one 0 one one 0 one one AN / NA X ₄₅ one 0 0 one one 0 0 0 one one AN / NN X ₄₆ one 0 one one one 0 0 one 0 0 NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ one one 0 0 one one one 0 one 0 NA / N X ₅₂ one one one 0 0 0 one one one 0 NA / AA X ₅₃ 0 one 0 one one one one 0 0 0 NA / AN X ₅₄ 0 one one 0 one one 0 one one one NA / NA X ₅₅ one 0 0 0 one one one 0 one 0 NA / NN X ₅₆ 0 0 0 one one one 0 one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ one 0 0 0 one 0 0 0 one one NN / N X ₆₂ 0 0 one 0 one 0 one 0 0 0 NN / AA X ₆₃ one one one one 0 one 0 0 0 0 NN / AN X ₆₄ 0 one 0 0 0 one one 0 one one NN / NA X ₆₅ one one one 0 0 0 one 0 0 one NN / NN X ₆₆ 0 one one one 0 0 0 one 0 one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

A specific example is shown in table 1-56. This embodiment is not limited to the conversion ratio in table 1-56. Any conversion relation obtained by a simple change based on table 1-56 is also included in the scope of this embodiment, for example, the sequences among the columns are randomly changed based on table 1-56, or the negation is performed on the value of some column. In addition, an equivalent change or equivalent encoding and conversion is performed on the codebook structure in each sending mode, which is also included in the scope of protection, provided that the type of codebook structure does not change in each mode.

An eleventh embodiment of a method for encoding a combined feedback signal in accordance with the present invention is illustrated below.

The difference between this embodiment and the tenth embodiment is that this embodiment applies a new combination of types of codebook structures. However, when certain codewords are specified, all codewords related to the HARQ-ACK specified in version R7 of TS25.212 specification in 3GPP, including PRE / POST, are compatible, as shown in Table 1-2. The conversion relationship between sending modes and types of codebook structures can be consulted in table 1-57.

Table 1-57
Transformation relation between sending modes and types of codebook structures used in the eleventh embodiment of the method for encoding a combined feedback signal Send mode Type of codebook structure Coding scheme Single Stream-DTX A-b - DTX-Single Stream A-b - Dual Stream-DTX 4A - DTX-Dual Stream 4A - Single Stream - Single Stream 2A-2B-4C Table 1-17, Coding Scheme 3 for Single Stream-Single Stream Dual Stream - Single Stream 4A-3B-6C-D Table 1-56, Coding scheme 5 for dual-stream-single-stream mode Single Stream - Double Stream {6A-2B-2C-D} U {D3 ~ D5} Table 1-52, Encoding Scheme 4 for Single Stream-Dual Stream Mode Dual Stream - Dual Stream {G7 ~ G16} U {H1 ~ H8} U {H9 ~ H16} Table 1-53, Encoding Scheme 3 for Dual Stream-Dual Stream Mode

Certain codewords that satisfy the restrictions in Table 1-57 are shown in Table 1-59.

Table 1-59
Conversion ratio between X _ij  and codeword values D / a X ₀₁ 0 0 0 0 0 0 one one one one D / n X ₀₂ one one one one one one 0 0 0 0 D / AA X ₀₃ 0 0 one one one one 0 0 0 one D / AN X ₀₄ 0 one one 0 0 one one one 0 0 D / NA X ₀₅ 0 0 0 0 one 0 one one one one D / nn X ₀₆ one one one 0 one 0 0 0 one 0 A / d X ₁₀ one one one one one one one one one one A / a X ₁₁ one one 0 one 0 0 0 0 one one A / n X ₁₂ 0 0 one one one 0 one 0 0 one A / AA X ₁₃ one one 0 0 one one one 0 0 one A / AN X ₁₄ 0 one one one 0 0 one 0 one one A / NA X ₁₅ one 0 one one one 0 one one 0 0 A / nn X ₁₆ one 0 one 0 0 0 one 0 0 one N / d X ₂₀ 0 0 0 0 0 0 0 0 0 0 N / a X ₂₁ one 0 0 one 0 one one one 0 0 N / N X ₂₂ 0 one one 0 0 one 0 one 0 one N / aa X ₂₃ one 0 0 one one 0 0 0 one one N / AN X ₂₄ one 0 0 one 0 one one 0 one 0 N / NA X ₂₅ one one 0 one 0 0 0 one 0 one N / NN X ₂₆ one one 0 0 0 0 one one one 0 AA / D X ₃₀ one 0 one 0 one one one one 0 one AA / A X ₃₁ one 0 0 0 one 0 0 0 one one AA / N X ₃₂ 0 0 one 0 one 0 one 0 0 0 AA / AA X ₃₃ one 0 0 0 0 one 0 one 0 0 AA / AN X ₃₄ 0 0 one one 0 0 one one one 0 AA / NA X ₃₅ one one 0 one one 0 one one 0 one AA / NN X ₃₆ one one 0 0 0 0 one one one 0 AN / D X ₄₀ one one 0 one 0 one 0 one one one AN / A X ₄₁ one one one 0 0 0 one one one 0 AN / N X ₄₂ one 0 0 0 0 one 0 one 0 0 AN / AA X ₄₃ 0 0 0 0 0 0 0 0 0 one AN / AN X ₄₄ one 0 one one 0 one one 0 one one AN / NA X ₄₅ one 0 0 one one 0 0 0 one one AN / NN X ₄₆ one 0 one one one 0 0 one 0 0 NA / D X ₅₀ 0 one one one one 0 one 0 one one NA / A X ₅₁ 0 0 one one 0 0 0 one 0 one NA / N X ₅₂ 0 one 0 0 0 one one 0 0 one NA / AA X ₅₃ 0 one 0 one one one one 0 0 0 NA / AN X ₅₄ 0 one one 0 one one 0 one one one NA / NA X ₅₅ one 0 0 0 one one one 0 one 0 NA / NN X ₅₆ 0 0 0 one one one 0 one one 0 NN / D X ₆₀ one 0 0 one 0 0 one 0 0 0 NN / A X ₆₁ 0 0 0 one one one one one one 0 NN / N X ₆₂ 0 one 0 one 0 0 0 0 one 0 NN / AA X ₆₃ one one one one 0 one 0 0 0 0 NN / AN X ₆₄ 0 one 0 0 0 one one 0 one one NN / NA X ₆₅ one one one 0 0 0 one 0 0 one NN / NN X ₆₆ 0 one one one 0 0 0 one 0 one PRE / POST Indication Information Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0

A specific example is shown in table 1-59. This embodiment is not limited to the conversion ratio in table 1-59. Any transformation relation obtained by a simple change based on table 1-59 is also included in the scope of this embodiment, for example, sequences among columns are randomly changed based on table 1-59, or negation is performed on the value of some column. In addition, an equivalent change or equivalent encoding and conversion is performed on the codebook structure in each sending mode, which is also included in the scope of protection, provided that the type of codebook structure does not change in each mode.

In conclusion, embodiments of the present invention provide a solution for feedback transmission of a HARQ-ACK signal in DC-MIMO technology. In accordance with the above descriptions, embodiments of the present invention are also applicable to a dual code channel, respectively providing a technical solution for transmitting HARQ-ACK information in feedback using more than three carriers or less than 4 carriers using 4 MIMO.

For ease of description, embodiments of the present invention define the following terms:

SC: single-carrier feedback scheme configured without MIMO, i.e., a feedback scheme corresponding to Table 1-1;

SC-MIMO: single-carrier feedback scheme configured with MIMO, i.e., a feedback scheme according to Table 1-2;

DC: dual-carrier feedback scheme configured without MIMO, i.e. a feedback scheme according to table 1-3; and

DC-MIMO: dual carrier feedback circuitry configured with MIMO.

Referring to Table 1-60, a solution for a dual code channel is provided in accordance with the total number of carriers and the number of carriers that use MIMO.

Table 1-60
Technical solution for transmitting HARQ-ACK information in feedback in a dual code channel with more than three carriers or less than four carriers using four MIMOs Total number of carriers Number of carriers that use MIMO Technical solution for dual code channel Code channel Code Channel Carrier Information Coding scheme 3 0 First code channel First carrier SC Second code channel Second and third bearing DC 3 one First code channel First carrier SC-MIMO Second code channel Second and third bearing DC 3 one First code channel First and second bearing DC-MIMO Second code channel Third carrier SC 3 2 First code channel First carrier SC-MIMO Second code channel Second and third bearing DC-MIMO 3 2 First code channel First and second bearing DC-MIMO Second code channel Third carrier SC 3 3 First code channel First carrier SC-MIMO Second code channel Second and third bearing DC-MIMO four 0 First code channel First and second bearing DC Second code channel Third and fourth bearing DC four one First code channel First and second bearing DC-MIMO Second code channel Third and fourth bearing DC four 2 First code channel First and second bearing DC-MIMO Second code channel Third and fourth bearing DC four 2 First code channel First and third bearing DC-MIMO Second code channel Second and fourth bearing DC-MIMO four 3 First code channel First and second bearing DC-MIMO Second code channel Third and fourth bearing DC-MIMO four four First code channel First and second bearing DC-MIMO Second code channel Third and fourth bearing DC-MIMO

For example, when the total number of carriers is 4 and the number of carriers that use MIMO is 4, then the information of the first carrier and the second carrier can be transferred in the first code channel, and the information of the third carrier and fourth carrier can be transferred in the second code channel. The DC-MIMO scheme is applied in the first code channel, and the DC-MIMO scheme is also applied in the second code channel.

In Table 1-60, MIMO is configured by default on several preceding carriers. For example, if one MIMO is configured, it is considered that MIMO is configured on the first carrier, and if two MIMOs are configured, then it is considered that MIMOs are configured on the first carrier and second carrier, and so on. In addition, for carriers that are configured without MIMO, feedback information can be considered as feedback information of a single MIMO stream. In practical applications, the carriers may be numbered in a different way, but the conversion may be performed in accordance with the MIMO configuration on the carriers and the carrier numbers in Table 1-60.

Since the investigated DC-MIMO scheme in the embodiments of the present invention is compatible with SC, SC-MIMO, and DC, each code channel can use only the DC-MIMO encoding mode. (For a carrier that is configured without MIMO, the feedback is considered as feedback in the single MIMO mode; and the single carrier can be considered as a dual carrier, in which the second carrier just returns from DTX.) The specific conversion relationships are shown in the table 1-61.

Table 1-61
Conversion relation between prior art circuits and DC-MIMO feedback circuits Prior art Corresponding circuit in DC-MIMO SC Single Stream-DTX or DTX-Single Stream SC-MIMO Dual Stream-DTX or DTX-Dual Stream DC Single Stream - Single Stream

In the above relation, transforms from 3 carriers to 4 carriers with 4 MIMOs can use two code channels to solve the feedback signal transmission problem. Each code channel uses DC-MIMO encoding mode. However, the carrier distribution must also be indicated. The specific distribution is the same as in table 1-60.

The following illustrates an embodiment of a signal encoding apparatus in accordance with the present invention.

FIG. 3 is a schematic structural view of an embodiment of a signal encoding device in accordance with the present invention, which includes, in particular, a combined feedback signal synthesis module 11 and an encoder module 12. The combined feedback synthesis synthesis unit 11 is configured to combine the HARQ-ACK signals of two carriers into a combined feedback signal when the two carriers are configured with MIMO. The encoder module 12 is configured to convert the combined feedback signal into a codeword in accordance with a predetermined conversion ratio between the signals and codewords.

Additionally, the combined feedback signal synthesis module 11 includes a first carrier signal synthesis submodule 13, a second carrier signal synthesis submodule 14 and a combined feedback signal synthesis submodule 15. The first carrier signal synthesis submodule 13 and the second carrier signal synthesis submodule 14 combine the carrier HARQ-ACK signals into carrier feedback signals corresponding to the carriers. The combined feedback signal synthesis submodule 15 combines the two carrier feedback signals into a combined feedback signal.

Those of ordinary skill in the art can understand that all or part of the steps of a method in accordance with embodiments of the present invention may be implemented using a program instructing appropriate hardware. The program may be stored on a computer readable storage medium. When the program starts, the steps of the method are carried out in accordance with embodiments of the present invention. The storage medium may be a magnetic disk, a compact disc with read-only memory (CD-ROM), read-only memory (ROM) or random access memory (RAM).

It should be noted that the above embodiments are provided only to clarify the technical solutions of the present invention, but are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, it is obvious that those skilled in the art can make various modifications and changes to the invention without departing from the scope of the invention. The invention should cover modifications and changes, provided that they fall within the scope of protection defined by the following claims or their equivalents.

Claims (11)

1. A method of encoding a combined feedback signal comprising the steps of:
encode the combined feedback signal of the two carriers when the two carriers are configured with many inputs and outputs, MIMO;
wherein the step of encoding the combined feedback signal comprises the step of:
convert the combined feedback signal into a code word in accordance with the conversion ratio, as shown in the following table:
D / a 0 0 0 0 0 0 one one one one D / n one one one one one one 0 0 0 0 D / AA one 0 0 0 one 0 0 0 one one D / AN 0 one 0 0 0 0 one one 0 one D / NA 0 0 0 one one one one one one 0 D / nn one one one one one 0 0 one 0 0 A / d one one one one one one one one one one A / A one one 0 one 0 0 0 0 one one A / n 0 0 one one one 0 one 0 0 one A / AA one 0 one 0 0 one one 0 0 0 A / AN one 0 0 one 0 one 0 one 0 one A / NA 0 0 one one one 0 one 0 0 one A / nn 0 one one one 0 one 0 0 one one N / d 0 0 0 0 0 0 0 0 0 0 N / a one 0 0 one 0 one one one 0 0 N / N 0 one one 0 0 one 0 one 0 one N / aa one one 0 one 0 0 one 0 one 0 N / AN one one 0 0 0 one 0 one one 0 N / NA 0 one one 0 one 0 one 0 one 0 N / NN 0 0 one 0 one one 0 one 0 one AA / D one 0 one 0 one one one one 0 one AA / A 0 one one 0 0 0 0 one 0 0 AA / N one one one 0 0 one one 0 one 0 AA / AA 0 one one 0 one one 0 one one one AA / AN one 0 one one 0 0 one one one one AA / NA one one 0 one one one one 0 0 one AA / NN 0 one one one 0 one one one 0 0 AN / D one one 0 one 0 one 0 one one one AN / A one 0 one one one 0 0 one one 0 AN / N 0 0 one one 0 one 0 0 0 one AN / AA 0 0 0 one one 0 0 one 0 one AN / AN one one one 0 0 0 0 0 0 one AN / NA one 0 0 0 0 one 0 one 0 0 AN / NN 0 0 one one 0 one 0 0 0 one NA / D 0 one one one one 0 one 0 one one NA / A 0 one 0 one one one one one 0 0 NA / N one one 0 0 one 0 0 0 0 one NA / AA one one 0 0 one 0 one one one 0 NA / AN 0 0 one 0 one 0 one 0 0 0 NA / NA one 0 one one one one 0 0 one 0 NA / NN one one one 0 0 one one 0 one 0 NN / D one 0 0 one 0 0 one 0 0 0 NN / A 0 0 0 0 one one 0 0 one 0 NN / N 0 one 0 0 0 one one 0 0 one NN / AA 0 one 0 one 0 0 0 0 one 0 NN / AN 0 0 one 0 0 0 0 one one 0 NN / NA 0 one 0 0 one one 0 0 0 0 NN / NN 0 0 0 0 0 one one 0 one one
Where
D represents discontinuous transmission, DTX; A represents an acknowledgment, ASK; N represents negative acknowledgment, NACK; AA represents ASK_ASK; AN represents ACK_NACK; NA represents NACK_ACK and NN represents NACK_NACK. 2. The method according to claim 1, additionally containing phase, in which:
when the send mode with the preamble and conclusion, PRE / POST, is applied, the PRE / POST indication is encoded in the following code words:
Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0 3. The method according to claim 1, additionally containing a stage in which:
transmitting the Node B feedback the codeword on the High Speed Dedicated Physical Uplink Control Channel, HS-DPCCH. 4. The method according to any one of claims 1 to 3, further comprising the step of:
combine the Hybrid Automatic Repeat Request Acknowledgment signals, HARQ-ACK, of two carriers into a combined feedback signal. 5. The method of claim 4, wherein the step of combining the HARQ-ACK signals of the two carriers into a combined feedback signal comprises the steps of:
combine the HARQ-ACK signals of the two carriers into two carrier feedback signals, respectively, and
combine the two carrier feedback signals into a combined feedback signal. 6. A device for encoding a combined feedback signal, comprising:
an encoder module configured to encode a combined feedback signal of two carriers when two carriers are configured with many inputs and outputs, MIMO;
moreover, the encoder module is further configured to convert the combined feedback signal into a code word in accordance with the conversion ratio, as shown in the following table:
D / a 0 0 0 0 0 0 one one one one D / n one one one one one one 0 0 0 0 D / AA one 0 0 0 one 0 0 0 one one D / AN 0 one 0 0 0 0 one one 0 one D / NA 0 0 0 one one one one one one 0 D / nn one one one one one 0 0 one 0 0 A / d one one one one one one one one one one A / A one one 0 one 0 0 0 0 one one A / n 0 0 one one one 0 one 0 0 one A / AA one 0 one 0 0 one one 0 0 0 A / AN one 0 0 one 0 one 0 one 0 one A / NA 0 0 one one one 0 one 0 0 one A / nn 0 one one one 0 one 0 0 one one N / d 0 0 0 0 0 0 0 0 0 0 N / a one 0 0 one 0 one one one 0 0 N / N 0 one one 0 0 one 0 one 0 one N / aa one one 0 one 0 0 one 0 one 0 N / AN one one 0 0 0 one 0 one one 0 N / NA 0 one one 0 one 0 one 0 one 0 N / NN 0 0 one 0 one one 0 one 0 one AA / D one 0 one 0 one one one one 0 one AA / A 0 one one 0 0 0 0 one 0 0 AA / N one one one 0 0 one one 0 one 0 AA / AA 0 one one 0 one one 0 one one one AA / AN one 0 one one 0 0 one one one one AA / NA one one 0 one one one one 0 0 one AA / NN 0 one one one 0 one one one 0 0 AN / D one one 0 one 0 one 0 one one one AN / A one 0 one one one 0 0 one one 0 AN / N 0 0 one one 0 one 0 0 0 one AN / AA 0 0 0 one one 0 0 one 0 one AN / AN one one one 0 0 0 0 0 0 one AN / NA one 0 0 0 0 one 0 one 0 0 AN / NN 0 0 one one 0 one 0 0 0 one NA / D 0 one one one one 0 one 0 one one NA / A 0 one 0 one one one one one 0 0 NA / N one one 0 0 one 0 0 0 0 one NA / AA one one 0 0 one 0 one one one 0 NA / AN 0 0 one 0 one 0 one 0 0 0 NA / NA one 0 one one one one 0 0 one 0 NA / NN one one one 0 0 one one 0 one 0 NN / D one 0 0 one 0 0 one 0 0 0 NN / A 0 0 0 0 one one 0 0 one 0 NN / N 0 one 0 0 0 one one 0 0 one NN / AA 0 one 0 one 0 0 0 0 one 0 NN / AN 0 0 one 0 0 0 0 one one 0 NN / NA 0 one 0 0 one one 0 0 0 0 NN / NN 0 0 0 0 0 one one 0 one one
Where
D represents discontinuous transmission, DTX; A represents an acknowledgment, ASK; N represents negative acknowledgment, NACK; AA represents ASK_ASK; AN represents ACK_NACK; NA represents NACK_ACK and NN represents NACK_NACK. 7. The device according to claim 6, in which:
when the send mode with the preamble and conclusion, PRE / POST, is applied, the encoder module is further configured to encode the PRE / POST indication in the following code words:
Pre 0 0 one 0 0 one 0 0 one 0 Post 0 one 0 0 one 0 0 one 0 0 8. The device according to claim 6, further comprising:
a feedback module, configured to transmit to the Node B feedback the code word on the High-speed dedicated physical control channel uplink communication, HS-DPCCH. 9. The device according to any one of claims 6 to 8, further comprising:
a combined feedback signal synthesis module configured to combine the HARQ-ACK Hybrid Automatic Repeat Request acknowledgment signals of two carriers into a combined feedback signal. 10. The device according to claim 9, in which:
synthesis module combined feedback signal contains:
a first carrier signal synthesis submodule and a second carrier signal synthesis submodule configured to combine carrier HARQ-ACK signals into two carrier feedback signals, respectively; and
a combined feedback signal synthesis sub-module configured to combine the two carrier feedback signals into a combined feedback signal. 11. A computer-readable medium containing code stored on it, which, when executed by a computer, instructs the computer to perform a method of encoding a combined feedback signal according to any one of paragraphs. 1-5.

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