公开(公告)号：US10749754B2

公开(公告)日：2020-08-18

申请号：US16371909

申请日：2019-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Cheng ,  Haibin Wang ,  Yanhua Li

IPC: H04L12/24 ,  H04W64/00 ,  H04W4/02

Abstract: A network distance prediction method and apparatus, wherein the method includes communicating, with at least two reference nodes, to determine values of at least some elements in a local distance matrix; constructing, the local distance matrix based on the values of the at least some elements in the local distance matrix; performing, low-rank sparse factorization on the local distance matrix to obtain a low-rank matrix; obtaining, values of elements in a first element set of the low-rank matrix, to use the values as target values of network distances between the to-be-positioned node and the at least two reference nodes; communicating, with the reference nodes, to obtain coordinates of the reference nodes in a network coordinate system; and determining, coordinates of the to-be-positioned node.

公开(公告)号：US20170132264A1

公开(公告)日：2017-05-11

申请号：US15414888

申请日：2017-01-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanhua Li ,  Chi-Yin Chow ,  Mingxuan Yuan ,  Qiang Yang

IPC: G06F17/30

CPC classification number: G06F16/2264 ,  G06F16/00 ,  G06F16/2246 ,  G06F16/245 ,  G06F16/29

Abstract: A trajectory data query method includes establishing a spatial-temporal index and an inverted index for trajectory data in a spatial-temporal database, where the inverted index is used to form a first relationship correspondence table that includes a correspondence between each trajectory and its associated index leaf node; performing sampling for an index leaf node included in a space area specified by a user, where a quantity of index leaf nodes in the space area and a quantity of index leaf nodes obtained by sampling are determined; determining, according to the index leaf nodes obtained by sampling and the first relationship correspondence table, a correspondence between each trajectory included in the index leaf nodes obtained by sampling and an index leaf node associated with the trajectory, to form a second relationship correspondence table; and determining an unbiased estimation operator according to the quantity of index leaf nodes in the space area.

公开(公告)号：US20190229997A1

公开(公告)日：2019-07-25

申请号：US16371909

申请日：2019-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Cheng ,  Haibin Wang ,  Yanhua Li

IPC: H04L12/24

Abstract: A network distance prediction method and apparatus, wherein the method includes: communicating, with at least two reference nodes, to determine values of at least some elements in a local distance matrix; constructing, the local distance matrix based on the values of the at least some elements in the local distance matrix; performing, low-rank sparse factorization on the local distance matrix to obtain a low-rank matrix; obtaining, values of elements in a first element set of the low-rank matrix, to use the values as target values of network distances between the to-be-positioned node and the at least two reference nodes; communicating, with the reference nodes, to obtain coordinates of the reference nodes in a network coordinate system; and determining, coordinates of the to-be-positioned node. The embodiments of the present invention can improve accuracy of network distance prediction.

公开(公告)号：US20170185449A1

公开(公告)日：2017-06-29

申请号：US15459371

申请日：2017-03-15

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Youhui Zhang ,  Yanhua Li ,  Kunpeng Song ,  Yuangang Wang

IPC: G06F9/48 ,  G06F12/0811 ,  G06F17/30 ,  G06F12/0842

CPC classification number: G06F9/4881 ,  G06F9/38 ,  G06F9/5027 ,  G06F9/505 ,  G06F12/0811 ,  G06F12/0842 ,  G06F15/16 ,  G06F16/2282 ,  G06F2209/509 ,  G06F2212/62

Abstract: A data processing method based on a multi-core processor chip, an apparatus, and a system are provided. The data processing method includes: obtaining, by a first processor core, a data processing task, where the data processing task includes a processing operation identifier and a storage address of to-be-processed data (202); determining, by the first processor core, a second processor core, where the second processor core corresponds to the storage address of the to-be-processed data (204); and sending, by the first processor core, the processing operation identifier and the storage address of the to-be-processed data to the second processor core (206). The data processing method is applied to a multi-core processor chip and improves working efficiency of the multi-core processor chip.