Apparatus and method for transmitting/receiving uplink data retransmission request in a CDMA communication system
First Claim
1. A method of requesting an uplink data retransmission in a CDMA (Code Division Multiple Access) communication system using a downlink dedicated physical channel (DL DPCH) to which a downlink dedicated physical control channel (DL DPCCH) and a downlink dedicated physical data channel (DL DPDCH) are mapped, the DL DPCCH having a transport power control (TPC) field, a transport format combination indicator (TFCI) field, and a pilot field, and the DL DPDCH having first and second data fields for delivering downlink data, comprising the steps of:
- receiving data on an enhanced uplink dedicated channel (EUDCH), generating a p-bit acknowledgement (ACK) if the received data is normal, and generating a p-bit non-acknowledgement (NACK) if the received data is abnormal;
determining a bit position to transmit the ACK or NACK at in the first and second data fields of the DL DPDCH; and
puncturing p bits in the determined position, inserting the ACK or NACK in the punctured bit positions, and transmitting the DL DPCH with the ACK or NACK.
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Accused Products
Abstract
Disclosed is a code division multiple access (CDMA) communication system having a downlink dedicated physical channel (DL_DPCH) having a downlink dedicated physical control channel (DL_DPCCH) and a downlink dedicated physical data channel (DL_DPDCH). The DL_DPCCH having a transport power control (TPC) field transmitting a TPC command for controlling uplink transport power, a transport format combination indicator (TFCI) field transmitting TFCI indicating a transport format combination of a currently transmitted channel, and a pilot field transmitting a pilot. The DL_DPDCH has first and second data fields transmitting downlink data. If data is normally received over an enhanced uplink dedicated channel (EUDCH), ACK information is generated, and if data is abnormally received over the EUDCH, NACK information is generated. Bits corresponding to the ACK or NACK information are punctured at a position randomly selected from the first and second data fields of the DL_DPDCH, and the ACK or NACK information is inserted into the punctured position before being transmitted.
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Citations
46 Claims
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1. A method of requesting an uplink data retransmission in a CDMA (Code Division Multiple Access) communication system using a downlink dedicated physical channel (DL DPCH) to which a downlink dedicated physical control channel (DL DPCCH) and a downlink dedicated physical data channel (DL DPDCH) are mapped, the DL DPCCH having a transport power control (TPC) field, a transport format combination indicator (TFCI) field, and a pilot field, and the DL DPDCH having first and second data fields for delivering downlink data, comprising the steps of:
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receiving data on an enhanced uplink dedicated channel (EUDCH), generating a p-bit acknowledgement (ACK) if the received data is normal, and generating a p-bit non-acknowledgement (NACK) if the received data is abnormal;
determining a bit position to transmit the ACK or NACK at in the first and second data fields of the DL DPDCH; and
puncturing p bits in the determined position, inserting the ACK or NACK in the punctured bit positions, and transmitting the DL DPCH with the ACK or NACK. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 37, 40, 41, 44)
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11. An apparatus for requesting an uplink data retransmission in a CDMA (Code Division Multiple Access) communication system using a downlink dedicated physical channel (DL DPCH) to which a downlink dedicated physical control channel (DL DPCCH) and a downlink dedicated physical data channel (DL DPDCH) are mapped, the DL DPCCH having a transport power control (TPC) field, a transport format combination indicator (TFCI) field, and a pilot field, and the DL DPDCH having first and second data fields for delivering downlink data, comprising:
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a puncturer for generating a p-bit acknowledgement (ACK) if data received on an enhanced uplink dedicated channel (EUDCH) is normal or a p-bit non-acknowledgement (NACK) if data received on the EUDCH is abnormal, and puncturing p bits in a position to transmit the ACK or NACK in the first and second data fields of the DL DPDCH, said position determined under a predetermined control;
a puncturing controller for determining the position to transmit the ACK or NACK in the first and second data fields of the DL DPDCH; and
a DL DPCH transmitter for inserting the ACK or NACK in the punctured bit positions and transmitting the DL DPCH with the ACK or NACK. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 38, 42, 43, 45)
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21. A method of receiving an uplink data retransmission request in a CDMA (Code Division Multiple Access) communication system using a downlink dedicated physical channel (DL DPCH) to which a downlink dedicated physical control channel (DL DPCCH) and a downlink dedicated physical data channel (DL DPDCH) are mapped, the DL DPCCH having a transport power control (TPC) field, a transport format combination indicator (TFCI) field, and a pilot field, and the DL DPDCH having first and second data fields for delivering downlink data, comprising the steps of:
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transmitting data on an enhanced uplink dedicated channel (EUDCH), and receiving a DL DPCH signal;
determining a position to receive a p-bit acknowledgement (ACK) or a p-bit non-acknowledgement (NACK) in the first and second data fields of the DL DPDCH; and
extracting p bits at the determined position as the ACK or NACK. - View Dependent Claims (22, 23, 24, 25, 29, 30)
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26. An apparatus for receiving an uplink data retransmission request in a CDMA (Code Division Multiple Access) communication system using a downlink dedicated physical channel (DL DPCH) to which a downlink dedicated physical control channel (DL DPCCH) and a downlink dedicated physical data channel (DL DPDCH) are mapped, the DL DPCCH having a transport power control (TPC) field, a transport format combination indicator (TFCI) field, and a pilot field, and the DL DPDCH having first and second data fields for delivering downlink data, comprising the steps of:
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a DL DPCH receiver for transmitting data on an enhanced uplink dedicated channel (EUDCH), and receiving a DL DPCH signal;
a puncturing controller for determining a position to receive a p-bit acknowledgement (ACK) or a p-bit non-acknowledgement (NACK) in the first and second data fields of the DL DPDCH; and
a puncturer for extracting p bits at the determined position as the ACK or NACK. - View Dependent Claims (27, 28)
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31. A method of requesting an uplink data retransmission in a CDMA (Code Division Multiple Access) communication system using a downlink dedicated data channel for delivering downlink data, comprising the steps of:
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receiving data on an uplink dedicated channel, generating a p-bit acknowledgement (ACK) if the received data is normal, and generating a p-bit non-acknowledgement (NACK) if the received data is abnormal;
determining a position to transmit the ACK or NACK in the downlink dedicated data channel; and
puncturing p bits in the determined position, inserting the ACK or NACK in the punctured bit positions, and transmitting the downlink dedicated data channel with the ACK or NACK. - View Dependent Claims (32, 33, 34, 35, 36, 39, 46)
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Specification