Data transmission method and terminal device thereof
AssigneeHuawei Technologies Co., Ltd.
InventorsChao Li, Xingwei Zhang
Life of this patent
Estimating the term…
Abstract
A data transmission method includes obtaining, by user equipment (UE), a maximum transmit power; determining, by the UE, a transmit power of a data channel and/or a transmit power of a control channel based on the maximum transmit power and a first parameter, where the first parameter includes at least one of the following: a bandwidth of the data channel, a bandwidth of the control channel, or a carrier type of a carrier of a first link; and sending, by the UE, the control channel and the data channel in a same subframe.
Claims20
A data transmission method performed in an apparatus, comprising:
- determining a first parameter A , wherein A equals to
- 10
-
-
- log
- 10
-
- (
- M
- PSSCH
- +
- 10
- a
- 10
- ×
- M
- PSCCH
- )
- +
- P
- O_PSSCH
- +
- α
- PSSCH
- ·
- PL
- ,
- wherein MPSCCH indicates a bandwidth of a control channel and MPSSCH indicates a bandwidth of a data channel, PL indicates a value of a path loss between the apparatus and a base station, aPSSCH is configured by the base station, PO_PSSCH is configured by the base station or a predefined value, and a is a predefined constant;
- in case of A≤PCMAX, determining a transmit power PPSSCH of a data channel, wherein PCMAX indicates a maximum transmit power, and
- PPSSCH equals to
- 10 log10(MPSSCH)+PO_PSSCH+αPSSCH·PL [dBm];
- or
- in case of A>PCMAX, determining the transmit power PPSSCH of the data channel based on a sum of a first additional item and PCMAX, wherein the first additional item is determined based on MPSSCH and MPSSCH;
- and
- sending the control channel and the data channel in a same subframe.
An apparatus, comprising:
- at least one processor;
- and
- a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, wherein the programming instructions instruct the at least one processor to:
- determine a first parameter A, wherein A equals to
- 10
-
-
- log
- 10
-
- (
- M
- PSSCH
- +
- 10
- a
- 10
- ×
- M
- PSCCH
- )
- +
- P
- O_PSSCH
- +
- α
- PSSCH
- ·
- PL
- ,
- wherein MPSCCH indicates a bandwidth of a control channel and MPSSCH indicates a bandwidth of a data channel, PL. indicates a value of a path loss between the apparatus and a base station, αPSSCH is configured by the base station, PO_PSSCH is configured by the base station or a predefined value, and a is a predefined constant;
- in case of A≤PCMAX, determine a transmit power PPSSCH of a data channel, wherein PCMAX indicates a maximum transmit power, and
- PPSSCH equals to
- 10 log10(MPSSCH)−PO_PSSCH+αPSSCH·PL [dBm];
- or
- in case of A>PCMAX, determine the transmit power PPSSCH of the data channel based on a sum of a first additional item and PCMAX, wherein the first additional item is determined based on MPSSCH and MPSSCH;
- and
- cause a transceiver to send the control channel and the data channel in a same subframe.
A non-transitory computer readable storage medium, comprising computer program codes which when executed by at least one processor cause a terminal device to perform steps of:
- determining a first parameter A , wherein A equals to
- 10
-
-
- log
- 10
-
- (
- M
- PSSCH
- +
- 10
- a
- 10
- ×
- M
- PSCCH
- )
- +
- P
- O_PSSCH
- +
- α
- PSSCH
- ·
- PL
- ,
- wherein MPSCCH indicates a bandwidth of a control channel and MPSSCH indicates the bandwidth of a data channel, PL indicates a value of a path loss between the terminal device and a base station, αPSSCH is configured by the base station 1, PO_PSSCH is configured by the base station or a predefined value, and a is a predefined constant,
- in case of A≤PCMAX, determining a transmit power PPSSCH of a data channel, wherein PCMAX indicates a maximum transmit power,
- PPSSCH equals to
- 10 log10(MPSSCH)−PO_PSSCH+αPSSCH·PL [dBm];
- or
- in case of A>PCMAX, determining the transmit power PPSSCH of the data channel based on a sum of a first additional item and PCMAX wherein the first additional item is determined based on MPSSCH and MPSSCH;
- and
- sending the control channel and the data channel in a same suhframe.
Dependencies are inferred from the claim text.