公开(公告)号：US12256335B2

公开(公告)日：2025-03-18

申请号：US18671468

申请日：2024-05-22

Applicant: Sun Patent Trust

Inventor： Takashi Iwai ,  Daichi Imamura ,  Akihiko Nishio ,  Yoshihiko Ogawa ,  Shinsuke Takaoka

IPC: H04W52/24 ,  H04L5/00 ,  H04W52/14 ,  H04W52/16 ,  H04W52/32 ,  H04W72/044

Abstract: Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit controls the transmission power of the second signal using the correction value.

公开(公告)号：US12219462B2

公开(公告)日：2025-02-04

申请号：US18322424

申请日：2023-05-23

Applicant: Sun Patent Trust

Inventor： Yoshihiko Ogawa ,  Seigo Nakao ,  Akihiko Nishio ,  Masayuki Hoshino ,  Daichi Imamura ,  Atsushi Sumasu

IPC: H04W48/02 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1829 ,  H04L1/1867 ,  H04L5/00 ,  H04W28/04 ,  H04W48/12

Abstract: An integrated circuit includes circuitry, which, in operation, controls transmitting downlink data to a terminal apparatus; receiving a plurality of transport blocks which are transmitted in a same time period using a same frequency band in a spatial multiplexing scheme, wherein a same acknowledgement information (ACK/NACK) relating to an error detection result of the downlink data is scrambled with different scrambling schemes respectively for the plurality of transport blocks and the respectively scrambled ACK/NACK is multiplexed with data on respective ones of the plurality of transport blocks, and channel quality information (CQI) of a downlink channel is multiplexed with the data on only one transport block of the plurality of transport blocks by the terminal apparatus; and extracting the ACK/NACK and the CQI from the received plurality of transport blocks.

公开(公告)号：US12218753B2

公开(公告)日：2025-02-04

申请号：US18504934

申请日：2023-11-08

Applicant: Sun Patent Trust

Inventor： Akihiko Nishio ,  Seigo Nakao

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/23 ,  H04L1/1829

Abstract: Disclosed are a transmission device and a transmission method with which it is possible to prevent delays in data transmission and to minimize the increase in the number of bits necessary for the notification of a CC to be used, in cases where a CC to be used is added during communication employing carrier aggregation. When a component carrier is to be added to a component carrier set, a setting section provided in a base station: modifies a CIF table that defines the correspondence between code points, which are used as labels for the respective component carriers contained in the component carrier set, and the identification information of the respective component carriers; and assigns a vacant code point to the component carrier to be added, while keeping the correspondence between the code points and the component carrier identification information defined in the CIF table before modification.

公开(公告)号：US12177853B2

公开(公告)日：2024-12-24

申请号：US18598987

申请日：2024-03-07

Applicant: Sun Patent Trust

Inventor： Akihiko Nishio ,  Daichi Imamura

IPC: H04W72/21 ,  H04B1/713 ,  H04L1/00 ,  H04L5/00 ,  H04W72/20 ,  H04W72/23

Abstract: Provided are a communication device and an SRS transmission method capable of reducing the possibility of a difference in recognition between the presence or absence of an SRS transmission between a base station and a terminal or of an SRS resource so as to prevent degradation of system throughput. At a terminal (200), a reception processing unit (203) detects control information indicating whether or not to request transmission of a sounding reference signal (SRS), whereupon a transmission signal forming unit (207) transmits an A-SRS by way of control by a transmission control unit (206) on the basis of control information. The transmission control unit (206) determines whether or not to execute SRS transmission on the basis of an “SRS Transmission Execution Rule” and the reception status of trigger information.

公开(公告)号：US12035254B2

公开(公告)日：2024-07-09

申请号：US18313986

申请日：2023-05-08

Applicant: Sun Patent Trust

Inventor： Shinsuke Takaoka ,  Hidetoshi Suzuki ,  Akihiko Nishio ,  Takashi Iwai

IPC: H04W52/30 ,  H04L5/00 ,  H04W28/02 ,  H04W52/34 ,  H04W52/36 ,  H04W52/42 ,  H04W52/14

CPC classification number: H04W52/367 ,  H04L5/005 ,  H04W28/0268 ,  H04W52/30 ,  H04W52/346 ,  H04W52/42 ,  H04W52/146 ,  H04W52/34

Abstract: Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit detects whether or not a total transmission power value of the UL channels transmitted by the plurality of CC exceeds the maximum transmission power specific to the UE. When a plurality of SRS are simultaneously transmitted using a Pcell and a Scell, and power scaling occurs, a power scaling control unit performs power allocation so that transmission power of the SRS of the Pcell has the higher priority than that of the SRS of the Scell.

公开(公告)号：US11963196B2

公开(公告)日：2024-04-16

申请号：US18316892

申请日：2023-05-12

Applicant: Sun Patent Trust

Inventor： Alexander Golitschek Edler von Elbwart ,  Akihiko Nishio

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W72/23 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0094 ,  H04W72/0446

Abstract: This invention concerns concepts for signaling resource allocation information to a terminal that indicates to the terminal assigned resources for the terminal. The terminal can receives downlink control information (DCI), which comprises a field for indicating the resource allocation information of the terminal. This resource assignment field within the DCI has a predetermined number of bits. The terminal can determines its assigned resource allocation information from the content of the received DCI, even though the bit size of the resource allocation field in the received DCI is insufficient to represent all allowed resource allocations. According to an embodiment, the received bits that are signaled to the terminal in the DCI represent predetermined bits of the resource allocation information. All remaining one or more bits of the resource allocation information that are not included in the field of the received DCI are set to predetermined value.

公开(公告)号：US11848775B2

公开(公告)日：2023-12-19

申请号：US18150710

申请日：2023-01-05

Applicant: Sun Patent Trust

Inventor： Akihiko Nishio ,  Seigo Nakao

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/20 ,  H04W72/23 ,  H04W72/0453 ,  H04L1/1829

CPC classification number: H04L1/0047 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0096 ,  H04L27/2634 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/23 ,  H04L1/1829

Abstract: Disclosed are a transmission device and a transmission method with which it is possible to prevent delays in data transmission and to minimize the increase in the number of bits necessary for the notification of a CC to be used, in cases where a CC to be used is added during communication employing carrier aggregation. When a component carrier is to be added to a component carrier set, a setting section provided in a base station: modifies a CIF table that defines the correspondence between code points, which are used as labels for the respective component carriers contained in the component carrier set, and the identification information of the respective component carriers; and assigns a vacant code point to the component carrier to be added, while keeping the correspondence between the code points and the component carrier identification information defined in the CIF table before modification.

公开(公告)号：US20230362909A1

公开(公告)日：2023-11-09

申请号：US18354438

申请日：2023-07-18

Applicant: Sun Patent Trust

Inventor： Takashi Iwai ,  Sadaki Futagi ,  Daichi Imamura ,  Akihiko Nishio ,  Seigo Nakao ,  Yoshihiko Ogawa

IPC: H04L5/00 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23 ,  H04W72/54

CPC classification number: H04W72/0453 ,  H04L5/0037 ,  H04L5/0041 ,  H04L5/0064 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23 ,  H04W72/54 ,  H04L5/006 ,  H04L5/0091

Abstract: A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus, a scheduling section allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section adjusts the set frequency allocation units set in the scheduling section based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.

公开(公告)号：US20230319792A1

公开(公告)日：2023-10-05

申请号：US18305206

申请日：2023-04-21

Applicant: Sun Patent Trust

Inventor： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio

IPC: H04W72/044 ,  H04W72/121 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W72/044 ,  H04L5/0016 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/121

Abstract: Method of scrambling signals, transmission point device, and user equipment using the method are provided. The method includes: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, wherein the blind detection for the UE is enabled and the signaling overhead is reduced.

公开(公告)号：US11778635B2

公开(公告)日：2023-10-03

申请号：US17718154

申请日：2022-04-11

Applicant: Sun Patent Trust

Inventor： Yoshihiko Ogawa ,  Akihiko Nishio ,  Daichi Imamura ,  Seigo Nakao ,  Masayuki Hoshino ,  Takashi Iwai ,  Sadaki Futagi

IPC: H04W72/12 ,  H04W72/23 ,  H04W72/1268 ,  H04L27/26 ,  H04L1/00 ,  H04W72/044 ,  H04L5/00 ,  H04W72/0453 ,  H04W28/06 ,  H04W84/04

CPC classification number: H04W72/23 ,  H04L1/00 ,  H04L1/0004 ,  H04L5/0023 ,  H04L5/0041 ,  H04L5/0064 ,  H04L5/0092 ,  H04L27/2601 ,  H04L27/2607 ,  H04L27/2614 ,  H04W72/0453 ,  H04W72/0466 ,  H04W72/0473 ,  H04W72/1268 ,  H04L1/0041 ,  H04L1/0045 ,  H04L5/006 ,  H04L5/0028 ,  H04L27/2636 ,  H04L27/2647 ,  H04W28/06 ,  H04W72/12 ,  H04W84/042

Abstract: Communication apparatuses and methods reduce the amount of signaling while maintaining a high scheduling gain. A determination unit stores a correspondence between the number of code words and the number of clusters to reduce the maximum value for the number of clusters allocated to each terminal as the number of code words increases, and thus determines the maximum value for the number of clusters based on the number of code words acquired. Based on the number of code words for a transmission signal from a terminal, an estimated value for the reception quality that is output by an estimation unit, and the maximum value for the number of clusters that is output by the determination unit, a scheduling unit schedules the allocation of the transmission signal transmitted by each terminal to a transmission band frequency (frequency resource) so as not to exceed the maximum value for the number of clusters.