US 9,867,184 B2Granted

Terminal apparatus and base station apparatus for receiving and transmitting downlink via physical downlink shared channel (PDSCH)

AssigneeSharp Kabushiki Kaisha

InventorsTatsushi Aiba, Kimihiko Imamura, Shoichi Suzuki, Kazunari Yokomakura

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Abstract

In a terminal apparatus communicating with a base station apparatus, first information and second information are received and third information is received on a physical downlink control channel, and when the physical downlink control channel is detected and when downlink control information format 1A to which CRC parity bits scrambled by a C-RNTI are added is detected in a subframe indicated as a special subframe based on a UL-DL configuration provided in accordance with the first information and indicated as a downlink subframe based on a UL-DL configuration provided in accordance with the third information, a downlink subframe is assumed based on the UL-DL configuration provided in accordance with the third information in the subframe and a corresponding physical downlink shared channel is detected.

Claims4

Dependent claims

A terminal apparatus that is configured to communicate with a base station apparatus, the terminal apparatus comprising:

receiving circuitry configured to:
receive first information indicating a first uplink-downlink configuration;
receive second information indicating a second uplink-downlink configuration;
and
receive, on a physical downlink control channel, third information indicating a third uplink-downlink configuration;
and
transmitting circuitry configured to:
transmit Hybrid Automatic Repeat Request-Acknowledgement ACK (HARQ-ACK) in a subframe n1, the HARQ-ACK being for a transmission of a physical downlink shared channel that is detected in a subframe n1−k1;
and
transmit the HARQ-ACK in a subframe n2, the HARQ-ACK being for the transmission of the physical downlink shared channel that is detected in a subframe n2−k2, wherein
in a case that the physical downlink control channel on which the third information is transmitted is detected and downlink control information to which Cyclic Redundancy Check (CRC) parity bits scrambled by a Cell-Radio Network Temporary Identifier (C-RNTI) are attached is detected in the subframe n1−k1 that is indicated as a special subframe based on the first uplink-downlink configuration and is indicated as a downlink subframe based on the third uplink-downlink configuration, the physical downlink shared channel is detected in the subframe n1−k1 by assuming the subframe n1−k1 to be the downlink subframe based on the third uplink-downlink configuration,
in a case that the physical downlink control channel on which the third information is transmitted is not detected and downlink control information to which CRC parity bits scrambled by the C-RNTI are attached is detected in the subframe n2−k2 that is indicated as a special subframe based on the first uplink-downlink configuration, the physical downlink shared channel is detected in the subframe n2−k2 by assuming the subframe n2−k2 to be the special subframe based on the first uplink-downlink configuration, and
the k1 and the k2 are given by the second uplink-downlink configuration.

10 more elements

A base station apparatus that is configured to communicate with a terminal apparatus, the base station apparatus comprising:

transmitting circuitry configured to:
transmit first information indicating a first uplink-downlink configuration;
transmit second information indicating a second uplink-downlink configuration;
and
transmit, on a physical downlink control channel, third information indicating a third uplink-downlink configuration;
and
receiving circuitry configured to:
receive Hybrid Automatic Repeat Request-Acknowledgement ACK (HARQ-ACK) in a subframe n1, the HARQ-ACK being for a transmission of a physical downlink shared channel that is detected in a subframe n1−k1;
and
receive the HARQ-ACK in a subframe n2, the HARQ-ACK being for the transmission of the physical downlink shared channel that is detected in a subframe n2−k2, wherein
in a case that the physical downlink control channel on which the third information is transmitted is scheduled and downlink control information to which Cyclic Redundancy Check (CRC) parity bits scrambled by a Cell-Radio Network Temporary Identifier (C-RNTI) are attached is transmitted in the subframe n1−k1 that is indicated as a special subframe based on the first uplink-downlink configuration and is indicated as a downlink subframe based on the third uplink-downlink configuration, the physical downlink shared channel is scheduled in the subframe n1−k1 by assuming the subframe n1−k1 to be the downlink subframe based on the third uplink-downlink configuration,
in a case that the physical downlink control channel on which the third information is transmitted is not scheduled and downlink control information to which CRC parity bits scrambled by the C-RNTI are attached is transmitted in the subframe n2−k2 that is indicated as a special subframe based on the first uplink-downlink configuration, the physical downlink shared channel is scheduled in the subframe n2−k2 by assuming, the subframe n2−k2 to be the special subframe based on the first uplink-downlink configuration, and
the k1 and the k2 are given by the second uplink-downlink configuration.

10 more elements

A communication method of a terminal apparatus that is configured to communicate with a base station apparatus, the communication method comprising:

receiving first information indicating a first uplink-downlink configuration,
receiving second information indicating a second uplink-downlink configuration,
receiving, on a physical downlink control channel, third information indicating a third uplink-downlink configuration,
transmitting Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) in a subframe n1, the HARQ-ACK being for a transmission of a physical downlink shared channel that is detected in a subframe n1−k1, and
transmitting the HARQ-ACK in a subframe n2, the HARQ-ACK being for the transmission of the physical downlink shared channel that is detected in a subframe n2−k2, wherein
in a case that the physical downlink control channel on which the third information is transmitted is detected and downlink control information to which Cyclic Redundancy Check (CRC) parity bits scrambled by a Cell-Radio Network Temporary Identifier (C-RNTI) are attached is detected in the subframe n1−k1 that is indicated as a special subframe based on the first uplink-downlink configuration and is indicated as a downlink subframe based on the third uplink-downlink configuration, the physical downlink shared channel is detected in the subframe n1−k1 by assuming the subframe n1−k1 to be the downlink subframe based on the third uplink-downlink configuration,
in a case that the physical downlink control channel on which the third information is transmitted is not detected and downlink control information to which CRC parity bits scrambled by the C-RNTI are attached is detected in the subframe n2−k2 that is indicated as a special subframe based on the first uplink-downlink configuration, the physical downlink shared channel is detected in the subframe n2−k2 by assuming the subframe n2−k2 to be the special subframe based on the first uplink-downlink configuration, and
the k1 and the k2 are given by the second uplink-downlink configuration.

5 more elements

A communication method of a base station apparatus that is configured to communicate with a terminal apparatus, the communication method comprising:

transmitting first information indicating a first uplink-downlink configuration,
transmitting second information indicating a second uplink-downlink configuration,
transmitting, on a physical downlink control channel, third information indicating a third uplink-downlink configuration
receiving Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) in a subframe n1, the HARQ-ACK being for a transmission of a physical downlink shared channel that is detected in a subframe n1−k1, and
receiving the HARQ-ACK in a subframe n2, the HARQ-ACK being for the transmission of the physical downlink shared channel that is detected in a subframe n2−k2, wherein
in a case that the physical downlink control channel on which the third information is transmitted is scheduled and downlink control information to which Cyclic Redundancy Check (CRC) parity bits scrambled by a Cell-Radio Network Temporary Identifier (C-RNTI) are attached is transmitted in the subframe n1−k1 that is indicated as a special subframe based on the first uplink-downlink configuration and is indicated as a downlink subframe based on the third uplink-downlink configuration, the physical downlink shared channel is scheduled in the subframe n1−k1 by assuming the subframe n1−k1 to be the downlink subframe based on the third uplink-downlink configuration,
in a case that the physical downlink control channel on which the third information is transmitted is not scheduled and downlink control information to which CRC parity bits scrambled by the C-RNTI are attached is transmitted in the subframe n2−k2 that is indicated as a special subframe based on the first uplink-downlink configuration, the physical downlink shared channel is scheduled in the subframe n2−k2 by assuming the subframe n2−k2 to be the special subframe based on the first uplink-downlink configuration, and
the k1 and the k2 are given by the second uplink-downlink configuration.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/024,445Filed 29 Aug 2014
Priority: JP 2013-19991026 Sep 2013
Published: US 2016/0234836 A111 Aug 2016
Granted: 9 Jan 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

H04W 72/0446
Based on the type of the allocated resource: resources in time domain, e.g. slots or frames
H04L 1/00
Arrangements for detecting or preventing errors in the information received
H04L 1/0061
Systems characterized by the type of code used: error detection codes
H04L 1/1812
Automatic repetition systems, e.g. Van Duuren systems: hybrid protocols; Hybrid automatic repeat request [HARQ]