公开(公告)号：US20210378024A1

公开(公告)日：2021-12-02

申请号：US17403386

申请日：2021-08-16

Applicant: ZTE Corporation

Inventor： Wei Cao ,  Li Tian ,  Ziyang Li ,  Junfeng Zhang ,  Chenchen Zhang

IPC: H04W74/08 ,  H04W52/24 ,  H04W52/34

Abstract: Methods, systems, and devices for power control for random access protocols in mobile communication technology are described. An exemplary method for wireless communication includes broadcasting, by a network node serving a cell, an indication of a transmit power level that is specific to the cell, wherein the indication is for use by a wireless device operating in the cell for a two-step random access procedure. Another exemplary method for wireless communication includes receiving, by a wireless device operating in a cell served by a network node, an indication of a transmit power level that is specific to the cell for use in a two-step random access procedure, and transmitting, at the transmit power level, a first message of the two-step random access procedure.

公开(公告)号：US20200322079A1

公开(公告)日：2020-10-08

申请号：US16908609

申请日：2020-06-22

Applicant: ZTE Corporation

Inventor： Wei Cao ,  Li Tian ,  Yifei Yuan ,  Tao Lu

IPC: H04J13/00 ,  H04J13/14 ,  H04J13/22 ,  H04L27/26 ,  H04L1/18

Abstract: Methods, systems, and devices related to applying a spreading code to reference signals are described. In one exemplary aspect, a method for wireless communication includes receiving a message indicating a set of control options available to the mobile device for data transmissions. The method includes selecting a spreading code sequence from a number of spreading code sequences, wherein the spreading code sequence corresponds to a control option in the set of control options, wherein the number of spreading code sequences is greater than a length of each of the spreading code sequence, and wherein the spreading code sequences are generated using a method when the length of each of the spreading code sequences is greater than or equal to a value. The method also includes generating a plurality of reference signal symbols using the spreading code sequence, and transmitting the plurality of reference signal symbols.

公开(公告)号：US12245271B2

公开(公告)日：2025-03-04

申请号：US17708363

申请日：2022-03-30

Applicant: ZTE CORPORATION

Inventor： Chenchen Zhang ,  Nan Zhang ,  Wei Cao ,  Kaibo Tian ,  Zhen Yang

IPC: H04W74/00 ,  H04W74/0833

Abstract: The present disclosure relates to methods, systems and devices for use in a wireless terminal includes transmitting, to a wireless network node, a preamble comprising a plurality of parts, wherein each of the plurality of parts comprises at least one sub-preamble and the sub-preambles in the plurality of parts are generated based on a plurality of roots.

公开(公告)号：US12069735B2

公开(公告)日：2024-08-20

申请号：US17486523

申请日：2021-09-27

Applicant: ZTE CORPORATION

Inventor： Wei Cao ,  Nan Zhang ,  Chenchen Zhang ,  Zhen Yang ,  Junfeng Zhang

IPC: H04W74/0833 ,  H04B7/185 ,  H04L27/26 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04B7/18513 ,  H04L27/26132 ,  H04W74/002

Abstract: Methods, systems, and devices for generating preambles in mobile communication technology are described. An exemplary method for wireless communication includes transmitting, by a network node, a configuration for random access comprising a value indicative of a number of Zadoff-Chu (ZC) sequence roots (M) and a number of repetitions (N), and receiving, from a wireless device, a random access preamble, wherein the random access preamble comprises M concatenated ZC sequences with different roots, and wherein each of the M concatenated ZC sequences is repeated based on N.

公开(公告)号：US11985548B2

公开(公告)日：2024-05-14

申请号：US17387552

申请日：2021-07-28

Applicant: ZTE Corporation

Inventor： Li Tian ,  Ziyang Li ,  Wei Cao ,  Junfeng Zhang ,  Jianqiang Dai

IPC: H04W28/26 ,  H04W48/16 ,  H04W72/0446

CPC classification number: H04W28/26 ,  H04W48/16 ,  H04W72/0446

Abstract: Techniques are described to configure a channel structure for a random-access procedure. For example, a wireless communication method includes communicates, by a first device, a channel structure to a second device, where the channel structure includes a first set of resources reserved for a first message (e.g., a preamble), a second set of resources reserved for a second message (e.g., a payload), or a time duration gap between the first set of resources and the second set of resources. The wireless communication method also includes receiving by the first device the first message and the second message at the configured first and second set of resources, respectively.

公开(公告)号：US11974332B2

公开(公告)日：2024-04-30

申请号：US17571061

申请日：2022-01-07

Applicant: ZTE Corporation

Inventor： Ziyang Li ,  Li Tian ,  Wei Cao ,  Jianqiang Dai ,  Yuzhou Hu ,  Junfeng Zhang

IPC: H04W74/08 ,  H04L5/00 ,  H04W74/0833

CPC classification number: H04W74/0841 ,  H04L5/0051

Abstract: Wireless communication includes a user equipment that transmits a message to a base station that includes a preamble and a payload corresponding to the preamble in a random access procedure. A parameter is determined based on the preamble, and a de-modulation reference signal (“DMRS”) sequence that is used for transmitting the payload is generated based on the parameter.

公开(公告)号：US11937293B2

公开(公告)日：2024-03-19

申请号：US17377928

申请日：2021-07-16

Applicant: ZTE CORPORATION

Inventor： Wei Cao ,  Zhen Yang ,  Nan Zhang ,  Jianwu Dou ,  Linxi Hu

IPC: H04W74/00 ,  H04B7/185 ,  H04W56/00

CPC classification number: H04W74/008 ,  H04B7/1851 ,  H04W56/0055 ,  H04W74/006 ,  H04W74/0833

Abstract: This disclosure relates generally to wireless communications and, more particularly, to systems and methods for determining an adaptive random access response window length in non-terrestrial networks. In one embodiment, a method performed by a communication device includes: receiving system information from a communication node, wherein the communication node communicates using a satellite in orbit or a high altitude platform station (HAPS); and determining an adaptive random access response window length based on the system information and whether the communication device has access to situation information that: characterizes a location of the communication device, an ephemeris of the satellite or a trajectory of the HAPS, and a payload type of the satellite or the HAPS.

公开(公告)号：US11641680B2

公开(公告)日：2023-05-02

申请号：US17213914

申请日：2021-03-26

Applicant: ZTE CORPORATION

Inventor： Xiaojuan Shi ,  He Huang ,  Jianwu Dou ,  Nan Zhang ,  Li Yang ,  Wei Cao

IPC: H04W76/12 ,  H04W8/28 ,  H04W36/00 ,  H04W36/32 ,  H04W68/00 ,  H04W80/02 ,  H04W84/06

Abstract: Methods and systems for handling UE associated information in non-terrestrial networks are disclosed. In one embodiment, a method performed by a satellite head station, includes: translating a first uplink (UL) tunnel address associated with a core network to a second UL tunnel address associated with the satellite head station, wherein the first and second UL tunnel addresses are each associated with a packet data unit (PDU) session established between the core network and a user equipment device (UE); transmitting the second UL tunnel address to a first satellite base station; and receiving UL data associated with the PDU session from the first satellite base station, wherein a UL tunnel address destination associated with the received UL data is set as the second UL tunnel address.

公开(公告)号：US20220337464A1

公开(公告)日：2022-10-20

申请号：US17851770

申请日：2022-06-28

Applicant: ZTE Corporation

Inventor： Chenchen Zhang ,  Nan Zhang ,  Wei Cao ,  Fangyu Cui ,  Kaibo Tian

IPC: H04L27/26 ,  H04W74/08 ,  H04J13/00

Abstract: A wireless communication method for use in a wireless terminal is disclosed. The wireless communication method comprises transmitting, to a wireless network node, a random access preamble selected from a plurality of predetermined preambles for a random access.

公开(公告)号：US11432282B2

公开(公告)日：2022-08-30

申请号：US16776414

申请日：2020-01-29

Applicant: ZTE CORPORATION

Inventor： Wei Cao ,  Li Tian ,  Tao Lu ,  Wuchen Jiao ,  Jinbang Zong

IPC: H04W72/04 ,  H04W72/00 ,  H04W74/08

Abstract: A system and method for allocating network resources are disclosed herein. In one embodiment, the system and method are configured to perform: determining a plurality of time slot resources contiguously allocated along a time domain, wherein a first subset of the plurality of time slot resources is assigned for receiving a first signal and a second subset of the plurality of time slot resources, contiguously allocated after the first subset of the plurality of time slot resources along the time domain, is assigned for receiving a second signal; and receiving the second signal transmitted in part of the first subset of the plurality of time slot resources.