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Positioning reference signal generation method and device, base station and readable storage medium

A positioning reference signal and generation method technology, applied in the field of communication, can solve problems such as inability to effectively complete OTDOA positioning, achieve the effect of expanding coverage and ensuring effectiveness

Active Publication Date: 2020-02-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present disclosure provide a positioning reference signal generation method, device, base station, and readable storage medium. The main technical problem to be solved is that OTDOA positioning cannot be effectively completed in a scenario with a large subcarrier spacing.

Method used

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  • Positioning reference signal generation method and device, base station and readable storage medium
  • Positioning reference signal generation method and device, base station and readable storage medium
  • Positioning reference signal generation method and device, base station and readable storage medium

Examples

Experimental program
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Embodiment 1

[0046] see figure 2 as shown, figure 2 A positioning reference signal generation method provided in Embodiment 1 of the present disclosure includes:

[0047] S201: Allocate time-frequency resources for positioning reference signals;

[0048] In this embodiment, it should be noted that the time-frequency resource allocated for the positioning reference signal should include at least two consecutive symbols. It should be noted that the so-called at least two consecutive symbols here refers to consecutive symbol numbers, that is, symbols are adjacent to each other in terms of time and frequency.

[0049] In this embodiment, when allocating resources, within a time slot (slot), according to the total resources in the time slot, the resource allocation of each channel in the time slot, and the priority of each channel, the positioning reference signal can be allocated time-frequency resources. It should be understood that in a time slot, it may carry multiple channels, such a...

Embodiment 2

[0094] On the basis of the first embodiment, this embodiment further exemplifies the solution of the present disclosure.

[0095] see Figure 12 as shown, Figure 12 A schematic diagram of a more specific positioning reference signal generation process provided by Embodiment 2 of the present disclosure, including:

[0096] S1201: Allocate time-frequency resources for positioning reference signals;

[0097] Remember to allocate time-frequency resources in a slot as symbols, The number of is determined by the resource occupied by each channel and reference signal in the slot and its priority. The feature of the allocation method is to ensure that at least two consecutive OFDM symbols are included for sending PRS.

[0098] S1202: Perform time-frequency resource grouping;

[0099] Time-frequency resources to be allocated to PRS symbols in the time domain are divided into PRS groups, the grouping principle is that each group contains consecutive The value of a symbol c...

Embodiment 3

[0122] Based on the first embodiment, this embodiment provides a device for generating a positioning reference signal. see Figure 17 , Figure 17 A positioning reference signal generating device 17 provided for Embodiment 3 of the present disclosure includes: a resource allocation module 171 and a positioning reference signal generating module 172 . in:

[0123] A resource allocation module 171, configured to allocate time-frequency resources for positioning reference signals;

[0124] In this embodiment, it should be noted that the time-frequency resource allocated for the positioning reference signal should include at least two consecutive symbols. It should be noted that the so-called at least two consecutive symbols here refers to consecutive symbol numbers, that is, symbols are adjacent to each other in terms of time and frequency.

[0125] In this embodiment, when the resource allocation module 171 allocates resources, within a time slot (slot), according to the tot...

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PUM

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Abstract

The invention provides a positioning reference signal generation method and device, a base station and a readable storage medium. Time-frequency resources comprising at least two continuous symbols are allocated to a positioning reference signal, and then according to generation information of the positioning reference signal and the time-frequency resources, the at least two continuous symbols are used as a combined PRS symbol according to a preset generation mode to generate a continuous positioning reference signal in a time domain. Thus, the positioning reference signal is generated on atleast two symbols, therefore, the positioning reference signal reaches the receiver; at least two CPs can be obtained through actual processing of the receiver. As the CP in the symbol received by thereceiver is increased, the length of the CP received by the receiver is increased, so that the effectiveness of OTDOA positioning is ensured, and particularly, the effectiveness of OTDOA positioningin a large subcarrier interval scene is ensured.

Description

technical field [0001] The present disclosure relates to but not limited to the field of communication technologies, and specifically, relates to but not limited to a positioning reference signal generation method, device, base station and readable storage medium. Background technique [0002] LTE (Long Term Evolution, long-term evolution) technology introduces Orthogonal Frequency Division Multiplexing (OFDM) and its extension or hybrid technology, and 5G NR still uses this technology. An advantage of this type of technology is that ISI (Inter Symbol Interference, inter-symbol interference) and ICI (Inter-Channel Interference, inter-carrier interference) can be reduced by using a cyclic prefix (Cyclic Prefix, CP). [0003] The cyclic prefix is ​​to copy the last part of each OFDM symbol, and then append it to the front end of each OFDM symbol. For example, see figure 1 shown. In the OFDM system, the CP addition operation is performed at the transmitting end, and the CP re...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04L25/02
CPCH04L5/0048H04L25/0224H04L27/261H04L27/2607H04L25/0226H04L5/0007H04L27/2613H04W72/04
Inventor 毕程陈诗军陈大伟王园园
Owner ZTE CORP