In a radio communication system using OCC for DMRS, a base station apparatus correctly receives PUSCH. If a first mode is set in which a demodulation reference signal of a physical uplink shared channel is multiplied by an orthogonal code determined in advance or if a temporary C-RNTI was used for a transmission of downlink control information, the demodulation reference signal of the physical uplink shared channel is multiplied by the orthogonal code determined in advance, and if a second mode is set in which the demodulation reference signal of the physical uplink shared channel is multiplied by an orthogonal code determined on the basis of cyclic shift information in the downlink control information and moreover, if an RNTI other than the temporary C-RNTI was used for the transmission of the downlink control information, the demodulation reference signal of the physical uplink shared channel is multiplied by the orthogonal code determined on the basis of the cyclic shift information in the downlink control information.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A terminal device, comprising: a reception circuit configured and programmed to or configured to receive downlink control information on a physical downlink control channel; and a transmission circuit configured and programmed to or configured to transmit a transport block on a physical uplink shared channel based on a detection of the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where a temporary Cell-Radio Network Temporary Identifier (C-RNTI) was used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the temporary C-RNTI was not used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel.
2. The terminal device according claim 1 , wherein the downlink control information is transmitted by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
3. A radio communication method used for a terminal device comprising the steps of: receiving downlink control information on a physical downlink control channel; and transmitting a transport block on a physical uplink shared channel based on a detection of the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where a temporary Cell-Radio Network Temporary Identifier (C-RNTI) was used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the temporary C-RNTI was not used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel.
4. The radio communication method according claim 3 , wherein the downlink control information is transmitted by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
5. An integrated circuit which causes a terminal device to perform a series of functions including functions of: receiving downlink control information on a physical downlink control channel; and transmitting a transport block on a physical uplink shared channel based on a detection of the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where a temporary Cell-Radio Network Temporary Identifier (C-RNTI) was used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the temporary C-RNTI was not used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel.
6. The integrated circuit according claim 5 , wherein the downlink control information is transmitted by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
7. A terminal device comprising: a reception circuit configured and programmed to or configured to receive downlink control information on a physical downlink control channel; and a transmission circuit configured and programmed to or configured to transmit a transport block on a physical uplink shared channel based on a detection of the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where the downlink control information with Cyclic Redundancy Check (CRC) bits scrambled by a temporary Cell-Radio Network Temporary Identifier (C-RNTI) and for the transport block associated with the transmission of the physical uplink shared channel was received; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the downlink control information with the CRC bits scrambled by the temporary C-RNTI and for the transport block associated with the transmission of the physical uplink shared channel was not received.
8. The terminal device according claim 7 , wherein the downlink control information is received by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
9. A radio communication method used for a terminal device comprising the steps of: receiving downlink control information on a physical downlink control channel; and transmitting a transport block on a physical uplink shared channel based on a detection of the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where the downlink control information with Cyclic Redundancy Check (CRC) bits scrambled by a temporary Cell-Radio Network Temporary Identifier (C-RNTI) and for the transport block associated with the transmission of the physical uplink shared channel was received; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the downlink control information with the CRC bits scrambled by the temporary C-RNTI and for the transport block associated with the transmission of the physical uplink shared channel was not received.
10. The radio communication method according claim 9 , wherein the downlink control information is received by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
11. An integrated circuit which causes a terminal device to perform a series of functions including functions of: receiving downlink control information on a physical downlink control channel; and transmitting a transport block on a physical uplink shared channel based on a detection of the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where the downlink control information with Cyclic Redundancy Check (CRC) bits scrambled by a temporary Cell-Radio Network Temporary Identifier (C-RNTI) and for the transport block associated with the transmission of the physical uplink shared channel was received; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the downlink control information with the CRC bits scrambled by the temporary C-RNTI and for the transport block associated with the transmission of the physical uplink shared channel was not received.
12. The integrated circuit according claim 11 , wherein the downlink control information is received by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
13. A base station device comprising: a transmission circuit configured and programmed to or configured to transmit downlink control information on a physical downlink control channel; and a reception circuit configured and programmed to or configured to receive a transport block on a physical uplink shared channel based on the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where a temporary Cell-Radio Network Temporary Identifier (C-RNTI) was used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the temporary C-RNTI was not used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel.
14. The base station device according claim 13 , wherein the downlink control information is transmitted by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
15. A radio communication method used for a base station device comprising the steps of: transmitting downlink control information on a physical downlink control channel; and receiving a transport block on a physical uplink shared channel based on the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where a temporary Cell-Radio Network Temporary Identifier (C-RNTI) was used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the temporary C-RNTI was not used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel.
16. The radio communication method according claim 15 , wherein the downlink control information is transmitted by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
17. An integrated circuit which causes a base station device to perform a series of functions including functions of: transmitting downlink control information on a physical downlink control channel; and receiving a transport block on a physical uplink shared channel based on the physical downlink control channel with the downlink control information; wherein a demodulation reference signal sequence of a demodulation reference signal associated with the transmission of the physical uplink shared channel is generated by multiplying a reference signal sequence by a certain sequence; and for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with an orthogonal cover code for the demodulation reference signal is not set or in a case where a temporary Cell-Radio Network Temporary Identifier (C-RNTI) was used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the temporary C-RNTI was not used to transmit the downlink control information for the transport block associated with the transmission of the physical uplink shared channel.
18. The integrated circuit according claim 17 , wherein the downlink control information is transmitted by the downlink control information format 0; and the downlink control information format 0 is used for scheduling of the physical uplink shared channel transmitted on a single antenna port.
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November 7, 2014
February 23, 2016
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