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SFN indication method, terminal equipment, positioning server and system

A technology for positioning server and terminal equipment, applied in the field of communication, can solve the problem of indistinguishable phase rotation and so on

Active Publication Date: 2020-11-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Embodiments of the present invention provide an SFN indication method, a terminal device, a positioning server and a system, which are used to solve misjudgments caused by inability to distinguish phase rotations when detecting phase rotation sequences

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  • SFN indication method, terminal equipment, positioning server and system
  • SFN indication method, terminal equipment, positioning server and system
  • SFN indication method, terminal equipment, positioning server and system

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Embodiment Construction

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0063] An embodiment of the present invention provides a positioning system, referring to figure 2 As shown in , including: positioning server 11, terminal equipment 12, eNB 13, MME (full name in English: mobility management entity, full name in Chinese: mobility management entity) 14, service gateway 15, PDN (full name in English: packet data network, Chinese Full name: packet data network) gateway 16. The positioning server 11 is an entity dedicated to supporti...

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Abstract

The invention discloses an SFN indicating method, terminal equipment, a positioning server and a system, which relate to the field of communication and are used for solving misjudgment caused by inability to distinguish phase rotation when detecting a phase rotation sequence. The SFN indication method includes: the positioning server acquires the SFN offset indication parameter of the cell i; the positioning server sends the SFN offset indication parameter of the cell i to the terminal device; the terminal device receives the SFN offset indication parameter of the cell i from the positioning server; the terminal device Obtain the frame number of the radio frame n of the cell j; the terminal device determines the phase rotation parameter of the cell i according to the frame number of the radio frame n of the cell j and the SFN offset indication parameter of the cell i, or obtains the phase rotation parameter of the radio frame m of the cell i The sequence initialization factor used by the narrowband positioning reference signal NPRS of the cell i, and the NPRS on the radio frame m of the cell i is obtained according to the sequence initialization factor of the cell i. Embodiments of the present invention are applied to OTDOA positioning.

Description

technical field [0001] The present invention relates to the communication field, in particular to an SFN (full name in English: system frame number: full name in Chinese: system frame number) indication method, a terminal device, a positioning server and a system. Background technique [0002] The mobile communication standardization organization 3GPP (full name in English: 3rd generation partnership project, full name in Chinese: Third Generation Partnership Project) proposed to enhance NB-IoT (full name in English: narrow band internet of things, full name in Chinese: Narrowband Internet of Things), among which become one of the main research contents of this subject. [0003] At present, there are various positioning technologies. Among them, OTDOA (English full name: observed time difference of arrival, Chinese full name: observed time difference of arrival) positioning technology is one of the key technologies to enhance NB-IoT. figure 1 A schematic diagram of the OTDO...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00
CPCG01S5/0236G01S5/10H04W64/00G01S5/00H04W84/042
Inventor 陈哲金哲吴毅凌张维良
Owner HUAWEI TECH CO LTD