CA-3081830-C - TERMINAL APPARATUS, BASE STATION APPARATUS, AND COMMUNICATION METHOD

CA3081830CCA 3081830 CCA3081830 CCA 3081830CCA-3081830-C

Abstract

This terminal device is provided with: a coding unit that maps, on a set of elements, a first sequence and a coding bit of an uplink sharing channel (UL-SCH); and a transmission unit that transmits a physical uplink sharing channel (PUSCH), wherein the elements are identified by a subcarrier index of the PUSCH and an OFDM symbol index of the PUSCH, and whether or not the first sequence is mapped avoiding a prescribed set of elements is given on the basis of at least the number of hybrid automatic re-transmission request HARQ-ACK bits mapped on the PUSCH.

Inventors

Tomoki Yoshimura
Shoichi Suzuki
Wataru Ouchi
Liqing Liu
Taewoo Lee

Assignees

SHARP KABUSHIKI KAISHA
FG Innovation Company Limited

Dates

Publication Date: 20260505
Application Date: 20181115
Priority Date: 20171115

Claims (2)

91017198 44 Claims [Claim 1] A terminal device comprising: 5 coding circuitry configured to map a first sequence for an uplink shared channel (UL-SCH), a second sequence for first channel state information (CSI), and a third sequence for second CSI to a set of resource elements, wherein each of the resource elements of the set is identified by an index pair formed of a subcarrier index for a physical uplink shared channel (PUSCH), and an orthogonal frequency division 10 multiplexing (OFDM) symbol for the PUSCH; and a transmitter configured to transmit the PUSCH, wherein the first sequence is mapped to a resource element group , the resource element group being formed of resource elements of one or multiple second antenna ports, the resource elements of the resource element group having the index pairs being the same as 15 the index pairs of the resource elements of one or multiple first antenna ports to which an uplink phase tracking reference signal (UL PTRS) corresponding to the first antenna ports is mapped, the second sequence is mapped avoiding the resource element group given based on the resource element group, 20 the third sequence is mapped to the resource element group, and the resource element group is given based on a number of hybrid automatic repeat request acknowledgement (HARQ-ACK) bits mapped to the PUSCH.
[Claim 2] 25 A communication method for a terminal device comprising: mapping a first sequence for an uplink shared channel (UL-SCH), a second sequence for first channel state information (CSI), and a third sequence for second CSI to a set of resource elements, wherein each of the resource elements of the set is identified by an index pair formed of a subcarrier index for a physical uplink shared channel 30 (PUSCH), and an orthogonal frequency division multiplexing (OFDM) symbol for the PUSCH; and transmitting the PUSCH the first sequence is mapped to a resource element group, the resource element group being formed of resource elements of one or multiple second antenna ports, the resource elements of the resource element group having the index pairs 91017198 being the same as the index pairs of the resource elements of one or multiple first antenna ports to which an uplink phase tracking reference signal (UL PTRS) corresponding to the first antenna ports is mapped, second sequence is mapped avoiding the resource element group given based on 5 the resource element group, and the third sequence is mapped to the resource element group, and the resource element group is given based on a number of hybrid automatic repeat request acknowledgement (HARQ-ACK) bits mapped to the PUSCH.

Description

TERMINAL APPARATUS, BASE STATION APPARATUS, AND COMMUNICATION METHOD Technical Field [000 l] The present invention relates to a terminal apparatus, a base station apparatus, and a communication method. Background Art [0002] In the 3rd Generation Partnership Project (3GPP), a radio access method and a radio network for cellular mobile communications (hereinafter referred to as "Long Term Evolution (LTE)"or "Evolved Universal Terrestrial Radio Access (EUTRA)") have been studied. In LTE, a base station apparatus is also referred to as an evolved NodeB (eNodeB), and a terminal apparatus is also referred to as user equipment (UE). LTE is a cellular communication system in which multiple areas are deployed in a cellular structure, with each of the multiple areas being covered by a base station apparatus. A single base station apparatus may manage multiple serving cells. [0003] The 3GPP has been studying a next generation standard (New Radio or NR) (NPL 1) to make a proposal for International Mobile Telecommunication (IMT)- 2020, a standard for a next-generation mobile communication system, standardized by the International Telecommunication Union (ITU). NR is required to satisfy requirements for three scenarios including enhanced Mobile BroadBand (eMBB), massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC) in a single technology framework. Citation List Non Patent Literature [0004] NPL 1: "New SID proposal: Study on New Radio Access Technology," RP- 160671, NTT docomo, 3GPP TSG RAN Meeting #71, Goteborg, Sweden, 7th to 10th March, 2016. Summary of Invention Technical Problem [0005] Date Re9ue/Date Received 2023-08-08 One aspect of the present invention provides a terminal apparatus efficiently performing communication, a communication method used for the terminal apparatus, a base station apparatus efficiently performing communication, and a communication method used for the base station apparatus. Solution to Problem [0006] (1) A first aspect of the present invention is a terminal apparatus including a coding unit configured to code one transport block and UCI, and a transmitter configured to transmit the one transport block and the UCI on one PUSCH. The one transport block is mapped to at least a first resource group of a first antenna port and a second resource group of a second antenna port. A UL PTRS is mapped to a third resource group of the first antenna port, and mapped to no resource element of the second antenna port. The UCI is mapped to at least a fourth resource group of the first antenna port and a fifth resource group of the second antenna port. An index pair of resource element included in the fifth resource group is different from any of index pairs of resource elements included in the third resource group, and the index pair is a pair of a subcarrier index and an OFDM symbol index of a resource element. [0007] (2) A second aspect of the present invention is a base station apparatus including a receiver configured to receive one PUSCH that includes one transport block and UCI, and is transmitted, and a decoding unit configured to decode the transport block and the UCL The one transport block is mapped to at least a first resource group of a first antenna port and a second resource group of a second antenna port. A UL PTRS is mapped to a third resource group of the first antenna port, and mapped to no resource element of the second antenna port. The UCI is mapped to at least a fourth resource group of the first antenna port and a fifth resource group of the second antenna port. An index pair of resource element included in the fifth resource group is different from any of index pairs of resource elements included in the third resource group, and the index pair is a pair of a subcarrier index and an OFDM symbol index of a resource element. [0008] (3) A third aspect of the present invention is a communication method used for a terminal apparatus, the method including coding one transport block and UCI, and transmitting the one transport block and the UCI on one PUSCH. The one transport block is mapped to at least a first resource group of a first antenna port and a second resource group of a second antenna port. A UL PTRS is mapped to a third resource group of the first antenna port, and mapped to no resource element of the second antenna port. The UCI is mapped to at least a fourth resource group of the first antenna port and a fifth resource group of the second antenna port. An index pair of resource element included in 2 Date Re!fue/Date Received 2020-05-05 the fifth resource group is different from any of index pairs of resource elements included in the third resource group, and the index pair is a pair of a subcarrier index and an OFDM symbol index of a resource element. [0009] (4) A fourth aspect of the present invention is a communication method including receiving one PUSCH that includes one transport block and UCI, and is transmitted, and decod