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US 12,119,904 B2Granted
Method and apparatus for codebook based UL transmission
AssigneeSamsung Electronics Co., Ltd.
InventorsMd. Saifur Rahman, Eko Onggosanusi
Life of this patent
Estimating the term…
Abstract
Methods and apparatuses for codebook based UL transmission are provided. A method for operating a UE comprises transmitting a UE capability information about a UL codebook for 8 antenna ports; receiving an indication indicating a TPMI for a transmission of a PUSCH; and transmitting the PUSCH based on the indicated TPMI, wherein the TPMI indicates a precoding matrix from the UL codebook for the 8 antenna ports, the UL codebook includes full-coherent (FC) precoding matrices comprising all non-zero entries, and an l-th column of a FC precoding matrix is associated with an l-th layer of the PUSCH transmission.
Claims20
A user equipment (UE) comprising
- a processor;
- and
- a transceiver operably coupled to the processor, the transceiver configured to:
- transmit a UE capability information about an uplink (UL) codebook for 8 antenna ports;
- receive an indication indicating a transmit precoding matrix indicator (TPMI) for a transmission of a physical uplink shared channel (PUSCH);
- and
- transmit the PUSCH based on the indicated TPMI,
- wherein the TPMI indicates a precoding matrix from the UL codebook for the 8 antenna ports, the UL codebook includes full-coherent (FC) precoding matrices comprising all non-zero entries, and an l-th column of a FC precoding matrix is associated with an l-th layer of the PUSCH transmission, and is given by
- W
- l
- ,
- m
- ,
- n
- (
- l
- )
- =
- 1
- S
- [
- v
- l
- ,
- m
- φ
- n
-
- v
- l
- ,
- m
- ]
-
- v
- l
- ,
- m
- =
- [
- u
- m
- e
- j
-
- 2
-
- π
-
- l
- O
- 1
-
- N
- 1
-
- u
- m
- …
- e
- j
-
- 2
-
- π
-
- l
-
- (
- N
- 1
- -
- 1
- )
- O
- 1
-
- N
- 1
-
- u
- m
- ]
- T
-
- u
- m
- =
- {
- [
- 1
- e
- j
-
- 2
-
- π
-
- m
- O
- 2
-
- N
- 2
- …
- e
- j
-
- 2
-
- π
-
- m
-
- (
- N
- 2
- -
- 1
- )
- O
- 2
-
- N
- 2
- ]
- N
- 2
- >
- 1
- 1
- N
- 2
- =
- 1
-
- φ
- n
- =
- e
- j
-
- π
-
- n
- /
- 2
- ,
- wherein:
- l∈{1, . . . , v} and v is a number of layers of the PUSCH transmission,
- N1 and N2 are number of antenna ports with the same polarization in first and second dimensions, respectively,
- O1 and O2 are oversampling factors in the first and second dimensions, respectively, and
- S is a scaling factor.
150 more elements
A base station (BS) comprising
- a processor configured to generate an indication indicating a transmit precoding matrix indicator (TPMI) for a transmission of a physical uplink shared channel (PUSCH);
- and
- a transceiver operably coupled to the processor, the transceiver configured to:
- receive a user equipment (UE) capability information about an uplink (UL) codebook for 8 antenna ports;
- transmit the indication indicating the TPMI for the transmission of the PUSCH;
- and
- receive the PUSCH based on the indicated TPMI,
- wherein the TPMI indicates a precoding matrix from the UL codebook for the 8 antenna ports, the UL codebook includes full-coherent (FC) precoding matrices comprising all non-zero entries, and an l-th column of a FC precoding matrix is associated with an l-th layer of the PUSCH transmission, and is given by
- W
- l
- ,
- m
- ,
- n
- (
- l
- )
- =
- 1
- S
- [
- v
- l
- ,
- m
- φ
- n
-
- v
- l
- ,
- m
- ]
-
- v
- l
- ,
- m
- =
- [
- u
- m
- e
- j
-
- 2
-
- π
-
- l
- O
- 1
-
- N
- 1
-
- u
- m
- …
- e
- j
-
- 2
-
- π
-
- l
-
- (
- N
- 1
- -
- 1
- )
- O
- 1
-
- N
- 1
-
- u
- m
- ]
- T
-
- u
- m
- =
- {
- [
- 1
- e
- j
-
- 2
-
- π
-
- m
- O
- 2
-
- N
- 2
- …
- e
- j
-
- 2
-
- π
-
- m
-
- (
- N
- 2
- -
- 1
- )
- O
- 2
-
- N
- 2
- ]
- N
- 2
- >
- 1
- 1
- N
- 2
- =
- 1
-
- φ
- n
- =
- e
- j
-
- π
-
- n
- /
- 2
- ,
- wherein:
- l∈{1, . . . , v} and v is a number of layers of the PUSCH transmission,
- N1 and N2 are number of antenna ports with the same polarization in first and second dimensions, respectively,
- O1 and O2 are oversampling factors in the first and second dimensions, respectively, and
- S is a scaling factor.
150 more elements
A method for operating a user equipment (UE), the method comprising:
- transmitting a UE capability information about an uplink (UL) codebook for 8 antenna ports;
- receiving an indication indicating a transmit precoding matrix indicator (TPMI) for a transmission of a physical uplink shared channel (PUSCH);
- and
- transmitting the PUSCH based on the indicated TPMI,
- wherein the TPMI indicates a precoding matrix from the UL codebook for the 8 antenna ports, the UL codebook includes full-coherent (FC) precoding matrices comprising all non-zero entries, and an l-th column of a FC precoding matrix is associated with an l-th layer of the PUSCH transmission, and is given by
- W
- l
- ,
- m
- ,
- n
- (
- l
- )
- =
- 1
- S
- [
- v
- l
- ,
- m
- φ
- n
-
- v
- l
- ,
- m
- ]
-
- v
- l
- ,
- m
- =
- [
- u
- m
- e
- j
-
- 2
-
- π
-
- l
- O
- 1
-
- N
- 1
-
- u
- m
- …
- e
- j
-
- 2
-
- π
-
- l
-
- (
- N
- 1
- -
- 1
- )
- O
- 1
-
- N
- 1
-
- u
- m
- ]
- T
-
- u
- m
- =
- {
- [
- 1
- e
- j
-
- 2
-
- π
-
- m
- O
- 2
-
- N
- 2
- …
- e
- j
-
- 2
-
- π
-
- m
-
- (
- N
- 2
- -
- 1
- )
- O
- 2
-
- N
- 2
- ]
- N
- 2
- >
- 1
- 1
- N
- 2
- =
- 1
-
- φ
- n
- =
- e
- j
-
- π
-
- n
- /
- 2
- ,
- wherein:
- l∈{1, . . . , v} and v is a number of layers of the PUSCH transmission,
- N1 and N2 are number of antenna ports with the same polarization in first and second dimensions, respectively,
- O1 and O2 are oversampling factors in the first and second dimensions, respectively, and
- S is a scaling factor.
147 more elements
Dependencies are inferred from the claim text.