US 12,471,110 B2
Base station apparatus, terminal apparatus, and communication method
Liqing Liu, Sakai (JP); Shohei Yamada, Sakai (JP); Hiroki Takahashi, Sakai (JP); Masayuki Hoshino, Sakai (JP); and Hidekazu Tsuboi, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Jun. 1, 2023, as Appl. No. 18/204,639.
Application 18/204,639 is a continuation of application No. 17/260,467, granted, now 11,706,777, previously published as PCT/JP2019/028004, filed on Jul. 17, 2019.
Claims priority of application No. 2018-134080 (JP), filed on Jul. 17, 2018.
Prior Publication US 2023/0319834 A1, Oct. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/23 (2023.01); H04L 5/00 (2006.01); H04W 72/1268 (2023.01); H04W 74/0833 (2024.01); H04W 74/0838 (2024.01)
CPC H04W 72/23 (2023.01) [H04L 5/0098 (2013.01); H04W 72/1268 (2013.01); H04W 74/0833 (2013.01); H04W 74/0838 (2024.01)] 2 Claims
OG exemplary drawing
 
1. A terminal apparatus for communicating with a base station apparatus, the terminal apparatus comprising:
reception circuitry configured to receive a configuration of an initial uplink (UL), bandwidth part (BWP), and a configuration of an additional UL BWP via a radio resource control (RRC) message, and to receive a random access response (RAR), message including an RAR UL grant in a contention-based random access procedure;
processing circuitry configured to switch an active UL BWP between the initial UL BWP and the additional UL BWP such that one of the initial UL BWP and the additional UL BWP is activated as the active UL BWP and the other one is deactivated; and
transmission circuitry configured to transmit a physical uplink shared channel (PUSCH), in the active UL BWP,
wherein the PUSCH is scheduled by using the RAR UL grant, the RAR UL grant comprising a PUSCH frequency resource allocation field with a fixed bit size,
the processing circuitry is further configured to interpret a truncated field or an expanded field as a field indicating a frequency resource allocation of the PUSCH, wherein
(i) when the contention-based random access procedure is performed and the initial UL BWP is the active UL BWP, the truncated field is a field in which bits are truncated from the PUSCH frequency resource allocation field with the fixed bit size by using a first size, or the expanded field is a field in which bits are inserted into the PUSCH frequency resource allocation field with the fixed bit size for expanding the PUSCH frequency resource allocation field by using the first size, and
(ii) when the contention-based random access procedure is performed and the the additional UL BWP is the active UL BWP, the truncated field is a field in which bits are truncated from the PUSCH frequency resource allocation field with the fixed bit size by using the first size, or the expanded field is a field in which bits are inserted into the PUSCH frequency resource allocation field with the fixed bit size for expanding the PUSCH frequency resource allocation field by using the first size; and
wherein the initial UL BWP has a size, wherein the first size is the size of the initial UL BWP, and wherein the size of the initial UL BWP is a number of resource blocks indicating a bandwidth of the initial UL BWP.