公开(公告)号：US10306489B2

公开(公告)日：2019-05-28

申请号：US15907766

申请日：2018-02-28

Applicant: Optis Cellular Technology, LLC

Inventor： Seung June Yi ,  Sung Jun Park ,  Young Dae Lee ,  Sung Duck Chun

IPC: H04L1/16 ,  H04W24/02 ,  H04W80/02 ,  H04W28/06 ,  H04L29/08

Abstract: A status report transmission of the PDCP layer for a PDCP status report can reduce radio resources by transmitting the reception success or failure of a series of PDCP service data units (SDUs) in the form of a bitmap when configuring the PDCP status report for reporting a reception status of PDCP SDUs to another party in the PDCP layer. A PDCP control packet data unit (PDU) is generated to communicate a status report for one or more PDCP SDUs transmitted from a transmitting node. The PDCP control PDU includes a data/control (D/C) bit field to indicate the PDCP control PDU is a control PDU, a control PDU type field to indicate a type of corresponding control information, a sequence number field to indicate a first missing PDCP SDU, and a bitmap field for a variable length bitmap. A specific bit in the variable length bitmap indicates whether a corresponding one of the one or more PDCP SDUs has been successfully been received. The PDCP control PDU is transmitted to the transmitting node.

公开(公告)号：US10298376B2

公开(公告)日：2019-05-21

申请号：US14804725

申请日：2015-07-21

Applicant: Optis Cellular Technology, LLC

Inventor： Seung Hee Han ,  Minseok Noh ,  Daewon Lee

IPC: H04L27/28 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W88/02

Abstract: A method of generating a reference signal includes acquiring a base sequence and acquiring a reference signal sequence with a length N from the base sequence. Good PAPR/CM characteristics of the reference signal can be kept to enhance performance of data demodulation or uplink scheduling.

公开(公告)号：US10200083B2

公开(公告)日：2019-02-05

申请号：US15286817

申请日：2016-10-06

Applicant: Optis Wireless Technology, LLC

Inventor： Seigo Nakao ,  Daichi Imamura ,  Akihiko Nishio ,  Masayuki Hoshino

IPC: H04B1/7103 ,  H04J13/00 ,  H04J13/18 ,  H04L5/00

Abstract: A wireless communication apparatus and method minimizes degradation in a separation characteristic of a code-multiplexed response signal using two-dimensional processing. One of plural cyclic shift values defines a reference signal sequence that is spread with an orthogonal sequence associated with one of the plural cyclic shift values. This two-dimensional processing compensates for interference affecting the reference signal.

公开(公告)号：US10149273B2

公开(公告)日：2018-12-04

申请号：US15587552

申请日：2017-05-05

Applicant: Optis Wireless Technology, LLC

Inventor： Muhammad Kazmi ,  Bengt Lindoff ,  Walter Müller

IPC: H04W64/00 ,  H04W48/04 ,  H04B17/20 ,  H04W76/28 ,  H04W24/02 ,  H04W76/27 ,  H04W76/04 ,  H04W88/02 ,  H04W88/08 ,  H04W76/20

Abstract: A wireless terminal capable of operating in a discontinuous mode and method for operation facilitate measurements pertaining to position of the wireless terminal. A measurement request message from a radio access network indicates that measurements are to be performed by the wireless terminal on downlink signals transmitted by the base station or by the base station on downlink signals transmitted by the base station. As a result of or after receiving the message, operation of the wireless terminal changes from a discontinuous mode to a modified mode to facilitate performance of the measurements. Relative to the discontinuous mode at least one of following are shortened or eliminated in the modified mode: (i) the non-reception periods, and (ii) the non-transmission periods.

公开(公告)号：US10028262B2

公开(公告)日：2018-07-17

申请号：US15446183

申请日：2017-03-01

Applicant: Optis Wireless Technology, LLC

Inventor： Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

IPC: H04W72/04 ,  H04W74/08 ,  H04W72/08 ,  H04W72/10 ,  H04W36/16 ,  H04W74/00 ,  H04W88/08

CPC classification number: H04W72/0413 ,  H04W36/16 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/087 ,  H04W72/10 ,  H04W74/004 ,  H04W74/0833 ,  H04W88/08

Abstract: A terminal apparatus includes processing circuitry that generates a plurality of identical transmission packets and assigns each of the plurality of identical transmission packets to subcarriers in a random access channel. A transmitter transmits the plurality of identical transmission packets in accordance with the assignment over the random access channel.

公开(公告)号：US10009792B2

公开(公告)日：2018-06-26

申请号：US15627754

申请日：2017-06-20

Applicant: Optis Wireless Technology, LLC

Inventor： Frederic Charpentier ,  Joachim Löhr

IPC: H04W28/06 ,  H04L1/18 ,  H04L12/801 ,  H04L12/835 ,  H04L29/06 ,  H04L29/08 ,  H04L5/00

CPC classification number: H04W28/065 ,  H04L1/1841 ,  H04L5/0046 ,  H04L47/10 ,  H04L47/30 ,  H04L69/02 ,  H04L69/03 ,  H04L69/16 ,  H04L69/166 ,  H04L69/22 ,  H04L69/32 ,  H04L69/324

Abstract: A data packet structure conveys data of service data units (SDU) using protocol data units (PDU). The data packet structure includes a data packet payload having at least one protocol data unit (PDU). A protocol data unit (PDU) includes a service data unit (SDU) or a fragment of a service data unit and a data packet header including an indicator indicating whether or not the data packet payload begins with a protocol data unit (PDU) being a fragment of a service data unit and whether or not the data packet payload ends with a protocol data unit (PDU) being a fragment of a service data unit.

公开(公告)号：US09913161B2

公开(公告)日：2018-03-06

申请号：US15441295

申请日：2017-02-24

Applicant: Optis Wireless Technology, LLC

Inventor： Alexander Golitschek Edler von Elbwart

IPC: H04W24/10 ,  H04W72/04 ,  H04L1/00 ,  H04B7/0413 ,  H04W88/02 ,  H04W84/04

CPC classification number: H04W24/10 ,  H04B7/0413 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04W72/0453 ,  H04W84/042 ,  H04W88/02

Abstract: A user equipment (UE) includes a processor to determine channel quality information and a transmitter, coupled to the processor, that transmits first channel quality information reports reporting channel quality information determined for resource blocks at a first reporting frequency. The transmitter also transmits second channel quality information reports reporting channel quality information determined for a subset of resource blocks between transmission of the first channel quality information reports. A plurality of second channel quality information reports for the subset of resource blocks are transmitted at a second reporting frequency different from the second reporting frequency.

公开(公告)号：US09800378B2

公开(公告)日：2017-10-24

申请号：US14751658

申请日：2015-06-26

Applicant: Optis Wireless Technology, LLC

Inventor： Yutaka Murakami ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Yoichi Nakagawa

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/0417 ,  H04L27/26 ,  H04J11/00 ,  H04B7/0413 ,  H04W72/04 ,  H04B7/06 ,  H04B7/08 ,  H04L25/02

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0613 ,  H04B7/0837 ,  H04J11/00 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/2647 ,  H04L27/2657 ,  H04L27/2662 ,  H04W72/0453

Abstract: A first orthogonal frequency division multiplexing (OFDM) frame signal is generated that includes a grid of multiple frequency subcarriers and multiple time periods. An OFDM symbol is transmitted using multiple frequency subcarriers during a time period and includes known reference OFDM symbols assigned to corresponding time-frequency resource elements in the grid, Each resource element is defined by a one of the multiple frequency subcarriers and one of the multiple time periods. A second orthogonal frequency division multiplexing (OFDM) frame signal is generated that includes a grid of multiple frequency subcarriers and multiple time periods and includes known reference OFDM symbols assigned to corresponding time-frequency resource elements in the grid. The time-frequency resource elements in the grid assigned to the known reference OFDM symbols in the first OFDM frame signal are different from the time-frequency resource elements in the grid assigned to the known reference OFDM symbols in the second OFDM frame signal. The first OFDM frame signal is converted to a first radio signal and the second OFDM frame signal to a second radio signal. The first radio signal is transmitted from a first antenna and the second radio signal from a second, different antenna.

公开(公告)号：US09729271B2

公开(公告)日：2017-08-08

申请号：US14372051

申请日：2012-02-13

Applicant: Yu Liu

Inventor： Yu Liu

IPC: H04L1/00 ,  H04L1/20 ,  H04L5/14

CPC classification number: H04L1/0007 ,  H04L1/0019 ,  H04L1/203 ,  H04L5/1469

Abstract: The present invention relates to method and apparatus for uplink data transmission, a user equipment, a computer program and a storage medium. The method comprises: acquiring a data error rate of data blocks transmitted on an uplink of a UE; constructing a new data block, wherein a size of the new data block is smaller than the size of the transmitted data block currently, if the block error rate is greater than a threshold; and transmitting the new data block on the uplink of the UE according to a first power currently allocated to the UE. The present invention can enhance the performance of uplink data transmission.

公开(公告)号：US09713162B2

公开(公告)日：2017-07-18

申请号：US14843319

申请日：2015-09-02

Applicant: Optis Wireless Technology, LLC

Inventor： Takahisa Aoyama ,  Joachim Loehr

IPC: H04W72/10 ,  H04W28/10 ,  H04W36/08 ,  H04W74/08 ,  H04W28/02 ,  H04W72/04 ,  H04W76/02 ,  H04W76/04 ,  H04W56/00 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W72/10 ,  H04W28/0268 ,  H04W28/0278 ,  H04W28/10 ,  H04W36/08 ,  H04W56/00 ,  H04W72/0406 ,  H04W72/1242 ,  H04W72/1278 ,  H04W74/0833 ,  H04W74/085 ,  H04W76/11 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: A communication terminal adjusts the transmission timing of data transmitted to a base station so that the base station can receive the data within a predetermined delay time. The communication terminal includes a reception section 701 for receiving priority of MAC control information transmitted from the base station, a priority control section 703 for defining the relationship between the priority of the MAC control information and priority assigned to DRB and SRB, and a transmission message generation section 704 for controlling so as to transmit information having a high priority early in accordance with the relationship between the priorities defined by the priority control section 703. According to the communication terminal, a comparison is made between the priority of the MAC control information and the priority assigned to the DRB and the SRB, whereby it is made possible to control what information is to be transmitted as desired.