-
公开(公告)号:US20230389036A1
公开(公告)日:2023-11-30
申请号:US18448705
申请日:2023-08-11
Applicant: Sun Patent Trust
Inventor: Ayako HORIUCHI , Hidetoshi SUZUKI , Kazuki TAKEDA , Lilei WANG
IPC: H04W72/23 , H04L5/00 , H04W72/0446 , H04W72/21
CPC classification number: H04W72/23 , H04L5/0053 , H04W72/0446 , H04W72/21 , H04W84/042
Abstract: Disclosed is a base station capable of appropriately configuring a resource on which an EPDCCH is located when soft combining is applied. The base station includes a configuration section that configures an EPDCCH set in a plurality of subframes, where the EPDCCH set is formed of ECCEs to which control information (assignment information) transmitted over the plurality of subframes is assigned. The base station includes an assignment section that assigns the control information to any of the ECCEs in each of the plurality of subframes.
-
公开(公告)号:US20180352543A1
公开(公告)日:2018-12-06
申请号:US16101225
申请日:2018-08-10
Applicant: Sun Patent Trust
Inventor: Akihiko NISHIO , Toru OIZUMI , Ayako HORIUCHI
CPC classification number: H04W72/0406 , H04L1/0026 , H04L1/1671 , H04L5/001 , H04L5/0055 , H04L5/0057
Abstract: Provided are a wireless communication terminal device and a control channel forming method with which, in the forming of a control channel for transmitting control information including an ACK/NACK and CSI (channel state information), wasteful use of resources is reduced compared to that in related art. In the case where CSI is transmitted independently, and in the case where CSI and an ACK/NACK are transmitted at the same time, the same format is used to form a control channel. Furthermore, in the case where an ACK/NACK is transmitted independently, another format is used if a component carrier (CC) number is equal to or less than 2, and the same format is used if the CC number is equal to or greater than 3.
-
公开(公告)号:US20250142583A1
公开(公告)日:2025-05-01
申请号:US19012525
申请日:2025-01-07
Applicant: Sun Patent Trust
Inventor: Ayako HORIUCHI , Hidetoshi SUZUKI , Kazuki TAKEDA , Lilei WANG
IPC: H04W72/23 , H04L5/00 , H04W72/0446 , H04W72/21 , H04W84/04
Abstract: Disclosed is a base station capable of appropriately configuring a resource on which an EPDCCH is located when soft combining is applied. The base station includes a configuration section that configures an EPDCCH set in a plurality of subframes, where the EPDCCH set is formed of ECCEs to which control information (assignment information) transmitted over the plurality of subframes is assigned. The base station includes an assignment section that assigns the control information to any of the ECCEs in each of the plurality of subframes.
-
4.
公开(公告)号:US20240155632A1
公开(公告)日:2024-05-09
申请号:US18415731
申请日:2024-01-18
Applicant: Sun Patent Trust
Inventor: Yoshiko SAITO , Ayako HORIUCHI , Seigo NAKAO , Akihiko NISHIO , Daichi IMAMURA , Alexander GOLITSCHEK EDLER VON ELBWART , Sujuan FENG
CPC classification number: H04W72/23 , H04J11/0079 , H04L5/001 , H04L5/0051 , H04L5/0053 , H04L5/0094
Abstract: A communication apparatus has a receiver and a decoder. The receiver receives a control signal including first downlink control information and second downlink control information, and receives decoding area information that indicates whether the extended Physical Downlink Control Channel (PDCCH) should be decoded for each of a plurality of terminal apparatuses. The decoder decodes each of a plurality of first mapping candidates in the PDCCH area or decodes each of the plurality of first mapping candidates in the PDCCH area and each of the plurality of second mapping candidates in the extended PDCCH. A number of the second mapping candidates included in the user-specific search space equals to or is more than a number of the first mapping candidates included in the common search space.
-
公开(公告)号:US20180115987A1
公开(公告)日:2018-04-26
申请号:US15850479
申请日:2017-12-21
Applicant: Sun Patent Trust
Inventor: Yoshihiko OGAWA , Daichi IMAMURA , Ayako HORIUCHI , Sadaki FUTAGI
CPC classification number: H04W72/1289 , H04L5/0007 , H04L5/0037 , H04L5/006 , H04L5/0085 , H04L5/023 , H04W88/085
Abstract: A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section divides a plurality of RBs (Resource Blocks) into a plurality of RB groups. An RB group control unit performs a control to change the correspondence relationship between the RBs and the RB groups with time. When the grouping section divides the RBs into the RB groups, the RB control unit performs a control to change a combination of the RBs included in each of the RB groups with time. A scheduling section performs a scheduling of allocating each of a plurality of mobile stations to each of the RBs in each of the RB groups according to the reception quality of the reference signal.
-
公开(公告)号:US20180103463A1
公开(公告)日:2018-04-12
申请号:US15841012
申请日:2017-12-13
Applicant: Sun Patent Trust
Inventor: Akihiko NISHIO , Toru OIZUMI , Ayako HORIUCHI
CPC classification number: H04W72/0406 , H04L1/0026 , H04L1/1671 , H04L5/001 , H04L5/0055 , H04L5/0057
Abstract: Provided are a wireless communication terminal device and a control channel forming method with which, in the forming of a control channel for transmitting control information including an ACK/NACK and CSI (channel state information), wasteful use of resources is reduced compared to that in related art. In the case where CSI is transmitted independently, and in the case where CSI and an ACK/NACK are transmitted at the same time, the same format is used to form a control channel. Furthermore, in the case where an ACK/NACK is transmitted independently, another format is used if a component carrier (CC) number is equal to or less than 2, and the same format is used if the CC number is equal to or greater than 3.
-
7.
公开(公告)号:US20230189043A1
公开(公告)日:2023-06-15
申请号:US18151966
申请日:2023-01-09
Applicant: SUN PATENT TRUST
Inventor: Yasuaki YUDA , Seigo NAKAO , Ayako HORIUCHI , Daichi IMAMURA , Masayuki HOSHINO , Atsushi SUMASU
CPC classification number: H04W24/10 , H04L1/20 , H04L1/0026 , H04L5/0057 , H04L12/189 , H04L27/28
Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.
-
公开(公告)号:US20220240230A1
公开(公告)日:2022-07-28
申请号:US17658687
申请日:2022-04-11
Applicant: Sun Patent Trust
Inventor: Yoshiko SAITO , Ayako HORIUCHI , Seigo NAKAO , Akihiko NISHIO , Daichi IMAMURA , Alexander GOLITSCHEK EDLER VON ELBWART , Sujuan FENG
Abstract: A communication apparatus has a receiver and a decoder. The receiver receives a control signal including first downlink control information and second downlink control information, and receives decoding area information that indicates whether the extended Physical Downlink Control Channel (PDCCH) should be decoded for each of a plurality of terminal apparatuses. The decoder decodes each of a plurality of first mapping candidates in the PDCCH area or decodes each of the plurality of first mapping candidates in the PDCCH area and each of the plurality of second mapping candidates in the extended PDCCH. A number of the second mapping candidates included in the user-specific search space equals to or is more than a number of the first mapping candidates included in the common search space.
-
9.
公开(公告)号:US20210204159A1
公开(公告)日:2021-07-01
申请号:US17203447
申请日:2021-03-16
Applicant: Sun Patent Trust
Inventor: Yasuaki YUDA , Seigo NAKAO , Ayako HORIUCHI , Daichi IMAMURA , Masayuki HOSHINO , Atsushi SUMASU
Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.
-
10.
公开(公告)号:US20190124632A1
公开(公告)日:2019-04-25
申请号:US16222326
申请日:2018-12-17
Applicant: SUN PATENT TRUST
Inventor: Toru OIZUMI , Seigo NAKAO , Ayako HORIUCHI
Abstract: In the base station (100), a search space setting unit (103) sets a search space on the basis of a search space setting rule in accordance with R-PDCCH range of a setting target slot, and an allocating unit (108) places DCI in one of a plurality of candidates of to-be-decoded unit range included in the set search space. The search space setting rules are associated with respective numbers of candidates of to-be-decoded unit range corresponding to the respective ones of a plurality of numbers of connections for R-CCE, and a first search space setting rule of a slot 0 and a second search space setting rule of a slot 1 are different from each other in terms of the patterns related to the numbers of candidates of to-be-decoded unit range corresponding to the plurality of numbers of connections for R-CCE.
-
-
-
-
-
-
-
-
-