Method and apparatus for transmitting uplink control information
AssigneeHuawei Technologies Co., Ltd.
InventorsYongxia Lv, Yan Cheng
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Abstract
In the field of wireless communication, a method and an apparatus for transmitting Uplink Control Information (UCI) are provided. The method includes: determining a codeword corresponding to the UCI among multiple codewords according to a preset rule when the UCI is transmitted on a Physical Uplink Shared Channel (PUSCH) with the multiple codewords (101); and transmitting the UCI by mapping the UCI onto the corresponding codeword (102). The apparatus includes a determining unit and a transmitting unit. The method and the apparatus provide a solution to transmitting UCI on a PUSCH with multiple codewords. This solution can be implemented easily based on LTE R8, without involving too much additional work of standardization.
Claims13
A method for transmitting Channel Quality Information (CQI), comprising:
- selecting, by a terminal, one transport block (TB) from two TBs to be transmitted to a base station in a first transmission time interval (TTI), in response to an uplink (UL) grant, wherein a modulation and coding scheme (MCS) field in the UL grant indicates which TB, from the two TBs, shall be selected by the terminal for transmitting the CQI;
- mapping, by the terminal, the CQI onto the selected TB;
- and
- transmitting, by the terminal, the two TBs in the first TTI on a physical uplink shared channel (PUSCH) to the base station.
A terminal for transmitting Channel Quality Information (CQI), comprising:
- memory to store a program;
- and
- computer hardware configured, including configured by the program, to:
- select one transport block (TB) from two TBs to be transmitted to a base station in a first transmission time interval (TTI) in response to an uplink (UL) grant, wherein a modulation and coding scheme (MCS) field in the UL grant indicates which TB, from the two TBs, shall be selected by the terminal for transmitting the CQI;
- map the CQI onto the selected TB;
- and
- transmit the two TBs in the first TTI on a physical uplink shared channel (PUSCH) to the base station.
A method for obtaining channel quality information (CQI), comprising:
- selecting, by an eNodeB, according to a rule, one transport block (TB) from two TBs to be received from a terminal in a first transmission time interval (TTI);
- sending, by the eNodeB, an uplink (UL) grant to the terminal, wherein a modulation and coding scheme (MCS) field in the UL grant indicates the TB selected according to the rule shall be used for transmitting the CQI;
- receiving, by the eNodeB, the two TBs from the terminal on a physical uplink shared channel (PUSCH) in the first TTI, wherein the CQI is mapped onto the TB selected according to the rule;
- obtaining, by the eNodeB, from among the received two TBs, the CQI from the TB selected according to the rule.
A base station for obtaining channel quality information (CQI), comprising:
- a processor;
- a transceiver;
- and
- a memory storing programming for execution by the processor and the transceiver, the programming including instructions to:
- select, according to a rule, one transport block (TB) from two TBs to be received from a terminal in a first transmission time interval (TTI);
- send an uplink (UL) grant to the terminal, wherein a modulation and coding scheme (MCS) field in the UL grant indicates the TB selected according to the rule shall be used for transmitting the CQI;
- receive the two TBs from the terminal on a physical uplink shared channel (PUSCH) in the first TTI, wherein the CQI is mapped onto the TB selected according to the rule;
- and
- obtain, from among the received two TBs, the CQI from the TB selected according to the rule.
Dependencies are inferred from the claim text.