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Random access signal transmitting method, resource notification method and device thereof

A technology of random access signal and random access, which can be used in synchronization devices, pilot signal allocation, wireless communication, etc., and can solve problems such as reducing implementation complexity.

Active Publication Date: 2017-09-26
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide a random access signal transmission and resource notification method and device, which are used to solve the problem of how to flexibly determine the transmission position of random access, and achieve the purpose of saving overhead and reducing implementation complexity

Method used

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  • Random access signal transmitting method, resource notification method and device thereof
  • Random access signal transmitting method, resource notification method and device thereof
  • Random access signal transmitting method, resource notification method and device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0136] Embodiment 1. A method for sending a random access signal, which can be applied to a terminal, such as image 3 As shown, including S110~S120:

[0137] S110. Carry one or more random access signals on a subframe or subframe combination, wherein the end of the one or more random access signals is aligned with the t-Δt position of the uplink area of ​​the subframe or subframe combination , t is the end time point of the uplink area, Δt is the advance amount;

[0138] or,

[0139] Subtract the length and advance Δt of the one or more random access signals from the end time point of the uplink region of the subframe or subframe combination to obtain the transmission start time of the one or more random access signals point;

[0140] S120. Send the random access signal.

[0141] In this embodiment, whether the end of the random access signal is aligned with the t-Δt position of the uplink area, or the time point at which the random access signal is sent is calculated wit...

Embodiment 2

[0170] Embodiment 2. A method for notifying random access signal resources, which can be applied to base stations or other network devices, such as Figure 7 As shown, including S210~S220:

[0171] S210. Determine one or more of the following random access resource parameters: the identifier of the subframe or subframe combination where the random access resource is configured, the length of the random access signal, the timing advance Δt, and the number of the random access resource ;

[0172] S220. Notify the terminal of the determined random access resource parameters.

[0173] In this embodiment, the parameter of the random access resource may further include a format of a random access signal.

[0174] In an optional solution of this embodiment, if the configured continuous random access resources exceed one subframe, the determined parameters of the random access resources at least include: the first subframe or The identifier of the last subframe. That is: notify th...

Embodiment 3

[0180] Embodiment 3, a method for sending a random access signal, which can be applied to a terminal, such as Figure 8 As shown, including S310~S320:

[0181] S310. The terminal receives a predetermined signal;

[0182] S320. The terminal sends a random access signal after a predetermined length of time after receiving the predetermined signal.

[0183] In an optional solution of this embodiment, the predetermined signal may be any of the following: a synchronization signal, a PBCH (Physical Broadcast channel, physical broadcast signal), or an access configuration set signal.

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Abstract

The invention provides a random access signal transmitting method, a resource notification method and a device thereof. The random access signal transmitting method comprises the steps of loading one or a plurality of random access signals on a subframe or a subframe assembly, wherein the end of one or the plurality of random access signals is aligned with a (t-deltat) position of an uplink area of the subframe or the subframe assembly, wherein t is an end time point of the uplink area, and deltat is an advancing amount; or subtracting the length and the advancing amount deltat of one or the plurality of random access signals from the end time point of the uplink area of the subframe or the subframe assembly, and obtaining a transmitting starting time point of one or the plurality of random access signals; and transmitting the random access signal. The random access signal transmitting method, the resource notification method and the device thereof can flexibly determine a random access transmitting position and realize purposes of saving expenditure and reducing realizing complexity.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a random access signal sending method, resource notification method and device. Background technique [0002] LTE (Long Term Evolution, long-term evolution) is a fourth-generation cellular mobile communication system, which has been widely used in commercial use. For cellular mobile communication systems, uplink random access is an unavoidable function. Uplink random access is generally started in various scenarios such as power-on, uplink out-of-sync state, service arrival or handover, etc., to complete the process of uplink synchronization. [0003] The uplink synchronization process of the RACH (Random Access Channel) of the LTE wireless communication system is as follows: the terminal sends a preamble on the uplink synchronization channel, and the base station obtains the timing advance of the signal sent by the terminal through the detection of the preamble and ...

Claims

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Application Information

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IPC IPC(8): H04W74/00H04W74/08
CPCH04W74/002H04W74/0833H04W74/08H04W56/001H04W74/006H04W74/00H04L5/0044H04L5/0048H04L25/0226H04W74/02H04W74/085
Inventor 郝鹏张峻峰李剑王乔锋刘星
Owner ZTE CORP
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