公开(公告)号：US11246188B2

公开(公告)日：2022-02-08

申请号：US16798462

申请日：2020-02-24

Applicant: JVCKENWOOD Corporation

Inventor： Tomohiro Yamaguchi

IPC: H04W88/08 ,  H04L27/144 ,  H04L27/156 ,  H04W72/04

Abstract: A wireless communication apparatus performs communication for which a receiving timing and a transmitting timing are defined by using time slots. The wireless communication apparatus includes a control circuitry configured to control the wireless communication apparatus. The control circuitry includes a decoding circuitry configured to start a decoding process, on data received in a first time slot, immediately after a start of a second time slot subsequent to the first time slot. When a result of the decoding process is information requesting the wireless communication apparatus to perform transmission, the control circuitry is configured to perform a transmission preparation process from an end of the decoding process to a start of a third time slot subsequent to the second time slot, within a period of the second time slot for enabling the wireless communication apparatus to perform transmission.

公开(公告)号：US20200296798A1

公开(公告)日：2020-09-17

申请号：US16798462

申请日：2020-02-24

Applicant: JVCKENWOOD Corporation

Inventor： Tomohiro Yamaguchi

IPC: H04W88/08 ,  H04W72/04 ,  H04L27/156 ,  H04L27/144

Abstract: A wireless communication apparatus performs communication for which a receiving timing and a transmitting timing are defined by using time slots. The wireless communication apparatus includes a control circuitry configured to control the wireless communication apparatus. The control circuitry includes a decoding circuitry configured to start a decoding process, on data received in a first time slot, immediately after a start of a second time slot subsequent to the first time slot. When a result of the decoding process is information requesting the wireless communication apparatus to perform transmission, the control circuitry is configured to perform a transmission preparation process from an end of the decoding process to a start of a third time slot subsequent to the second time slot, within a period of the second time slot for enabling the wireless communication apparatus to perform transmission.

公开(公告)号：US11595142B2

公开(公告)日：2023-02-28

申请号：US17189308

申请日：2021-03-02

Applicant: JVCKENWOOD Corporation

Inventor： Tomohiro Yamaguchi

IPC: H04J3/06 ,  H04W56/00 ,  H04W72/04 ,  H04W72/0446 ,  H04B7/08 ,  H04B7/06

Abstract: A reception apparatus of a time division multiple access (TDMA) system for performing intermittent reception by a reception period of a time slot and a non-reception period of a predetermined number of time slots which follow the reception period and in which reception is suspended includes a symbol clock controller configured to perform symbol synchronization at a timing at which a synchronous word included in the reception period after the non-reception period, and correct a symbol clock frequency of a symbol clock based on a number of time slots and a symbol count value during a previous reception period and the non-reception period following the previous reception period; and a reception period controller configured to correct, after detection of the synchronous word, a reception termination timing of the reception period in which the synchronous word is detected based on the symbol clock with the corrected symbol clock frequency.

公开(公告)号：US20210297173A1

公开(公告)日：2021-09-23

申请号：US17189308

申请日：2021-03-02

Applicant: JVCKENWOOD Corporation

Inventor： Tomohiro Yamaguchi

IPC: H04J3/06 ,  H04W72/04 ,  H04W56/00

Abstract: A reception apparatus of a time division multiple access (TDMA) system for performing intermittent reception by a reception period of a time slot and a non-reception period of a predetermined number of time slots which follow the reception period and in which reception is suspended includes a symbol clock controller configured to perform symbol synchronization at a timing at which a synchronous word included in the reception period after the non-reception period, and correct a symbol clock frequency of a symbol clock based on a number of time slots and a symbol count value during a previous reception period and the non-reception period following the previous reception period; and a reception period controller configured to correct, after detection of the synchronous word, a reception termination timing of the reception period in which the synchronous word is detected based on the symbol clock with the corrected symbol clock frequency.