Method and User Equipment for Mapping ACK/NACK Response Messages
AssigneeZte Corporation
InventorsChunli Liang, Bo Dai, Weiwei Yang, Peng Zhu
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Abstract
The present invention provides as method and a user UE for mapping ACK/NACK response messages. The method comprises the UE determining number L of bits of ACK/NACK response messages according to predetermined conditions, wherein, the predetermined conditions include at least one of: a number of downlink component carriers or cells that are allocated to the UE by a base station, and a transmission mode of each of the downlink component carriers; and the UE mapping the ACK/NACK response messages to the L bits so as to handle them correctly.
Claims17
A method for mapping acknowledgement/negative acknowledgement (ACK/NACK) response messages, comprising:
- a user equipment (UE) determining a number L of bits of ACK/NACK response messages that need to be fed back according to predetermined conditions, wherein, the predetermined conditions include at least one of:
- a number of downlink component carriers or cells that are configured to the UE by a base station, and a transmission mode of each of the downlink component carriers;
- and
- the UE mapping the ACK/NACK response messages to the L bits, and
- the L bits are processed by channel coding, scrambling, modulating, transform precoding, and time domain spreading, and then sent on a PUCCH format in form of DFT-s-OFDM;
- or,
- the L bits are processed by channel coding and channel interleaving and then multiplexed with data and sent to the base station in a PUSCH, and
- if the UE is unable to detect a PDSCH in a code word stream corresponding to a downlink component carrier or cell configured for the UE, the UE will generate a NACK response message for the downlink component carrier or cell.
7-13. (canceled)
A method for mapping ACK/NACK response messages, comprising:
- a UE mapping ACK/NACK response messages corresponding to code word streams to a channel selection mapping table according to at least one of:
- whether a downlink component carrier or cell is a primary or secondary one, a order of the code word streams of the downlink component carrier or cell and a number of the code word streams contained in the downlink component carrier or cell;
- and
- the UE sending the ACK/NACK response messages using a PUCCH format 1b with channel selection.
(canceled)
A user equipment, comprising:
- a determination module, configured to determine a number L of bits of ACK/NACK response messages according to predetermined conditions, wherein, the predetermined conditions include at least one of:
- a number of downlink component carriers or cells that are allocated to the UE by a base station, and a transmission mode of each of the downlink component carriers;
- a mapping module, configured to map the ACK/NACK response messages to the L bits;
- and
- a sending module, configured to, after the L bits are processed by channel coding, scrambling, modulating, transform precoding, and time domain spreading, send the L bits on a PUCCH format in form of DFT-s-OFDM;
- or configured to, after the L bits are processed by channel coding and channel interleaving and then multiplexed with data, send the L bits to the base station in a PUSCH.
A user equipment, comprising:
- a mapping module configured to map ACK/NACK response messages corresponding to code word streams to a channel selection mapping table according to at least one of:
- whether a downlink component carrier or cell is a primary or secondary one, a sequence of the code word streams of the downlink component carrier or cell and a number of the code word streams contained in the downlink component carrier or cell;
- and
- a sending module configured to send the ACK/NACK response messages using a PUCCH format 1b channel selection.
Dependencies are inferred from the claim text.