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Method and system for sending positioning reference signal

A positioning reference signal and positioning reference technology are applied in the field of sending positioning reference signals to achieve the effects of improving measurement accuracy, positioning performance, and probability of being detected.

Inactive Publication Date: 2011-06-08
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the complexity of the actual environment, the positioning reference signal transmitted again is likely to be on the same signal position as the signal of the serving base station again, thus being covered again

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  • Method and system for sending positioning reference signal
  • Method and system for sending positioning reference signal
  • Method and system for sending positioning reference signal

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Embodiment Construction

[0022] In this section of the detailed description, there is shown and described the preferred embodiment of the invention by way of illustration only of the best mode contemplated by the inventors for carrying out the invention. As will be realized, the invention may be modified in various obvious respects without departing from the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0023] In view of this, the present invention proposes a technical solution for sending positioning reference signals. Both the remote base station and the serving base station corresponding to the mobile terminal send positioning reference signals in multiple positioning reference signal transmission opportunities. By making the remote base station at least The two transmitters send the positioning reference signal, so that the number of transmitting opportunities occupied by the serving base station for sending the positioning...

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Abstract

The invention discloses a method and a system for sending a positioning reference signal. A remote base station and a serving base station which correspond to a mobile terminal send the positioning reference signals in a plurality of positioning reference signal sending chances; the remote base station sends the positioning reference signals in at least two sending chances, and the number of sending chances in which the serving base station sends the positioning reference signals is less than or equal to that of the sending chances in which the remote base station sends the positioning reference signals, so the detected possibility of the signals of the remote base station is enhanced, the measuring precision is increased, and the positioning performance is improved.

Description

technical field [0001] The invention relates to positioning technology, in particular to a method and system for sending positioning reference signals. Background technique [0002] Wireless positioning service is also called location-based service (Location-Based Services, LBS). Currently, commonly used wireless positioning methods include cell characteristic code identification / round-trip time (CELL-ID / RTT), observed time difference of arrival (OTDOA, Observed Time Difference of Arrival) , Network-assisted GPS positioning (A-GPS, Network-Assisted Global Positioning System) and hybrid positioning. [0003] Among them, the OTDOA method is a commonly used positioning method in wireless networks, and is the default positioning technology of WCDMA. OTDOA is a method with high positioning accuracy. In this method, the downlink transmission synchronization difference of different cells is obtained by measuring the time difference of arrival of downlink signals of different cells...

Claims

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Application Information

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IPC IPC(8): H04W64/00
Inventor 仲川
Owner BEIJING SAMSUNG TELECOM R&D CENT
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