阅读说明：本技术 发送和接收信息的方法、发送装置和接收装置 (Method for transmitting and receiving information, transmitting device and receiving device ) 是由 苏立焱 于 2018-01-19 设计创作，主要内容包括：本申请实施例提供了一种发送和接收信息的方法、发送装置和接收装置,涉及通信领域。其方法为：发送装置生成索引；索引指示单码字所使用的预编码信息；发送装置向接收装置发送索引。本申请实施例用于sTTI系统中终端设备的预编码矩阵的确定。(The embodiment of the application provides a method for sending and receiving information, a sending device and a receiving device, and relates to the field of communication. The method comprises the following steps: the transmitting device generates an index; the index indicates precoding information used by the single codeword; the transmitting device transmits the index to the receiving device. The method and the device are used for determining the precoding matrix of the terminal equipment in the sTTI system.)

A method for transmitting information, comprising:

the sending device generates an index, wherein the index indicates precoding information used by a single code word;

the transmitting device transmits the index to a receiving device.

A method of receiving information, comprising:

the receiving device receives an index from the transmitting device, wherein the index indicates precoding information used by a single code word;

and the receiving device determines the precoding information used by the single code word according to the index.

A transmitting apparatus, comprising: a processing unit and a communication unit;

the processing unit is configured to generate an index, where the index indicates precoding information used by a single codeword;

the communication unit is used for sending the index to a receiving device.

A receiving apparatus, comprising: a processing unit and a communication unit;

the communication unit is used for receiving an index from a sending device, wherein the index indicates precoding information used by a single code word;

and the processing unit is used for determining the precoding information used by the single code word according to the index.

The method according to claim 1 or 2, or the transmitting device according to claim 3, or the receiving device according to claim 4,

the single codeword is a codeword sent by the sending device to the receiving device and the number of antenna ports of the sending device is 2, or the single codeword is a codeword sent by the receiving device to the sending device and the number of antenna ports of the receiving device is 2, and the number of values of the index is less than or equal to 4.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 5, wherein the single codeword is a codeword that is transmitted by the transmitting apparatus to the receiving apparatus, and the number of antenna ports of the transmitting apparatus is 2, and the precoding information indicated by all values of the index is the following 4 precoding information, or the precoding information indicated by all values of the index includes at least 2 precoding information of the following 4 precoding information, or the precoding information indicated by all values of the index includes the 1 st and 4 th precoding information of the following 4 precoding information:

the 1 st precoding information is: layer 2 transmission diversity;

the 2 nd precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The 3 rd precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The 4 th precoding information is: and the last precoding matrix carried on a Physical Uplink Shared Channel (PUSCH) indicates the precoding matrix reported by the PMI.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 5, wherein the single codeword is a codeword transmitted by the receiving apparatus to the transmitting apparatus, and the number of antenna ports of the receiving apparatus is 2, and the precoding information indicated by all values of the index is the following 4 precoding information, or the precoding information indicated by all values of the index includes at least 2 precoding information from the following 4 precoding information:

the 1 st precoding information is: layer 2 transmission diversity;

the 2 nd precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The 3 rd precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The 4 th precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The method according to claim 1 or 2, or the transmitting device according to claim 3, or the receiving device according to claim 4,

the single codeword is a codeword sent by the sending device to the receiving device and the number of antenna ports of the sending device is 4, or the single codeword is a codeword sent by the receiving device to the sending device and the number of antenna ports of the receiving device is 4, and the number of values of the index is less than or equal to 32.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 8, wherein the single codeword is a codeword transmitted by the transmitting apparatus to the receiving apparatus, and the number of antenna ports of the transmitting apparatus is 4, and the precoding information indicated by all values of the index includes the following 21 precoding information, or the precoding information indicated by all values of the index includes at least 18 precoding information of the following 21 precoding information, or the precoding information indicated by all values of the index includes 1 st to 18 th precoding information of the following 21 precoding information:

the 1 st precoding information is: 4-layer transmission diversity;

the ith precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is a precoding matrix represented by a transmission precoding matrix indicator TPMI (precoding matrix indicator) i-2; i is an integer of 2 to 17 inclusive;

the 18 th precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the 19 th precoding information is: the number of transmission layers of the single code word is 2, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the 20 th precoding information is: the number of transmission layers of the single code word is 3, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the 21 st precoding information is: the number of transmission layers of the single code word is 4, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 8, wherein the single codeword is a codeword transmitted by the transmitting apparatus to the receiving apparatus, and the number of antenna ports of the transmitting apparatus is 4, and the precoding information indicated by all values of the index includes the following 13 precoding information, or the precoding information indicated by all values of the index includes at least 10 precoding information of the following 13 precoding information, or the precoding information indicated by all values of the index includes 1 st to 10 th precoding information of the following 13 precoding information:

the 1 st precoding information is: 4-layer transmission diversity;

the ith precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is represented by TPMI (a (i-2)); i is an integer of 2 or more and 9 or less, wherein a0, a1, …, a6 and a7 are 7 different values of 0, 1, …, 14 and 15;

the 10 th precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the 11 th precoding information is: the number of transmission layers of the single code word is 2, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the 12 th precoding information is: the number of transmission layers of the single code word is 3, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the 13 th precoding information is: the number of transmission layers of the single code word is 4, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 8, wherein the single codeword is a codeword transmitted by the receiving apparatus to the transmitting apparatus, and the number of antenna ports of the receiving apparatus is 4, and the precoding information indicated by all values of the index includes the following 25 precoding information:

the 1 st precoding information is: 4-layer transmission diversity;

the ith precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is represented by TPMI (precoding matrix index) i-2; i is an integer of 2 to 25 inclusive.

The method according to claim 1 or 2, or the transmitting device according to claim 3, or the receiving device according to claim 4,

the single codeword is a codeword sent by the sending device to the receiving device and the number of antenna ports of the sending device is 2, or the single codeword is a codeword sent by the receiving device to the sending device and the number of antenna ports of the receiving device is 2, and the number of columns of a precoding matrix corresponding to precoding information indicated by an index of at least one of the values of the index is equal to 2.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 12, wherein the single codeword is a codeword transmitted by the transmitting apparatus to the receiving apparatus, and the number of antenna ports of the transmitting apparatus is 2, and all values of the index include the following 8 precoding information:

the 1 st precoding information is: layer 2 transmission diversity;

the 2 nd precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The 3 rd precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The 4 th precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The 5 th precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is

The 6 th precoding information is: the number of transmission layers of the single code word is 2, and the precoding matrix is

The 7 th precoding information is: the number of transmission layers of the single code word is 2, and the precoding matrix is

The 8 th precoding information is: the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 12, wherein the single codeword is a codeword transmitted by the receiving apparatus to the transmitting apparatus, and the number of antenna ports of the receiving apparatus is 2, and all values of the index include the following 8 precoding information:

the 1 st precoding information is: layer 2 transmission diversity;

the ith precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is represented by TPMI (precoding matrix index) i-2; i is an integer greater than 2 and less than or equal to 7;

the 8 th precoding information is: the number of transmission layers of the single codeword is 2, and the precoding matrix is represented by TPMI ═ 0.

The method according to claim 1 or 2, or the transmitting device according to claim 3, or the receiving device according to claim 4,

the single codeword is a codeword sent by the sending device to the receiving device and the number of antenna ports of the sending device is 4, or the single codeword is a codeword sent by the receiving device to the sending device and the number of antenna ports of the receiving device is 4, and the number of columns of a precoding matrix corresponding to precoding information indicated by an index of at least one of the values of the index is equal to at least one of 3 and 4.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 15, wherein the single codeword is a codeword transmitted by the transmitting apparatus to the receiving apparatus, and the number of antenna ports of the transmitting apparatus is 4, and all values of the index include the following 61 precoding information:

the 1 st precoding information is: 4-layer transmission diversity;

the ith precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is represented by TPMI (precoding matrix index) i-2; i is an integer of 2 to 17 inclusive;

the 18 th precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the jth precoding information is: the number of transmission layers of the single code word is 2, and the precoding matrix is represented by TPMI (joint-19); j is an integer of 19 to 34 inclusive;

the 35 th precoding information is: the number of transmission layers of the single code word is 2, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the kth precoding information is: the number of transmission layers of the single code word is 3, and the precoding matrix is represented by TPMI (precoding matrix index) k-36; k is an integer of 36 or more and 51 or less;

the 52 th precoding information is: the number of transmission layers of the single code word is 3, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH;

the g-th precoding information is: the number of transmission layers of the single codeword is 4, and the precoding matrix is a precoding matrix represented by TPMI ═ a (g-53); g is an integer of 53 or more and 60 or less, wherein a0, a1, …, a6 and a7 are 7 different values of 0, 1, …, 14 and 15;

the 61 st precoding information is: the number of transmission layers of the single code word is 4, and the precoding matrix is a precoding matrix reported by the last PMI carried on the PUSCH.

The method, or the transmitting apparatus, or the receiving apparatus according to claim 15, wherein the single codeword is a codeword transmitted by the receiving apparatus to the transmitting apparatus, and the number of antenna ports of the receiving apparatus is 4, and all values of the index include the following 54 precoding information:

the 1 st precoding information is: 4-layer transmission diversity;

the ith precoding information is: the number of transmission layers of the single code word is 1, and the precoding matrix is represented by TPMI (precoding matrix index) i-2; i is an integer of 2 to 25 inclusive;

the jth precoding information is: the number of transmission layers of the single code word is 2, and the precoding matrix is represented by TPMI (joint-26); j is an integer of 26 or more and 41 or less;

the kth precoding information is: the number of transmission layers of the single code word is 3, and the precoding matrix is represented by TPMI (precoding matrix index) k-42; k is an integer of 42 or more and 53 or less;

the 54 th precoding information is: the number of transmission layers of the single codeword is 4, and the precoding matrix is represented by TPMI ═ 0.

The method according to claim 5, 8, 12 or 15, wherein the index is an index of a table indicated by the transmitting apparatus to the receiving apparatus through higher layer signaling, and the table indicated by the transmitting apparatus to the receiving apparatus through higher layer signaling is one of a plurality of tables, and the table includes a corresponding relationship between the index and precoding information.

A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1-2, 5-18.