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Downlink data sending method and device, receiving method and device, storage medium

A technology for downlink data and channel transmission, which is applied in the field of communication, can solve problems such as the inability to meet coverage requirements, and achieve the effect of increasing power and increasing transmission power

Active Publication Date: 2021-05-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a method and device for sending downlink data, a method and device for receiving them, and a storage medium, so as to at least solve the problem in the related art that it is impossible to achieve a longer-distance coverage requirement under the condition of limited transmission power. question

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  • Downlink data sending method and device, receiving method and device, storage medium
  • Downlink data sending method and device, receiving method and device, storage medium
  • Downlink data sending method and device, receiving method and device, storage medium

Examples

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Embodiment 1

[0058] In this embodiment, a method for sending downlink data is provided, figure 1 is a flowchart of a method for sending downlink data according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0059] Step S102, using the cell-level common channel in the downlink channel and / or the downlink user-level channel in the downlink channel to send downlink data, wherein the cell-level common channel and the downlink user-level channel occupy different time domain positions.

[0060] Wherein, the base station may perform the above operations. In this embodiment, the downlink transmission data at the base station side may be divided into a cell-level common channel and a downlink user-level channel, wherein the cell-level common channel may be defined as the data transmitted by the base station side. All users belonging to the cell (corresponding to user equipment, referred to as users) can receive and demodulate them,...

Embodiment 2

[0077] The method embodiment provided in this embodiment can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, figure 2 It is a block diagram of the hardware structure of the mobile terminal of the method for receiving downlink data according to the embodiment of the present invention. like figure 2 As shown, the mobile terminal 20 may include one or more ( figure 2 Only one is shown in the figure) processor 202 (the processor 202 may include but not limited to a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 204 for storing data, and a transmission device for communication functions 206. Those of ordinary skill in the art can understand that, figure 2 The shown structure is only for illustration, and it does not limit the structure of the above-mentioned electronic device. For example, mobile terminal 20 may also include figure 2 more or fewer components t...

specific Embodiment 1

[0097] By transforming the 3GPP-based standard Time Division Duplexing (TDD for short) Long-Term Evolution (LTE for short) air-to-air coverage wireless communication system, the terminal type is an airborne terminal installed on an aircraft, and the working The frequency band is 2.412-2.432GHz, and there is WIFI system interference in this frequency band, so the wireless communication system supporting ultra-long coverage obtained by this method is as follows;

[0098] The implementation of the technical solution is described in further detail below:

[0099] Step1: Refer to attached Figure 4 , the wireless frame structure of the designed TDD wireless communication system is 20ms, in which the guard time slot is 2ms, which can support a maximum cell coverage radius of 300km, the number of uplink subframes is 5, each uplink subframe occupies 1ms, and the number of downlink subframes There are 13 downlink subframes, and each downlink subframe occupies 1 ms. The definitions of ...

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Abstract

The present invention provides a method and device for sending downlink data, a method and device for receiving it, and a storage medium, wherein the method for sending downlink data includes: using a cell-level common channel in the downlink channel and / or a downlink user in the downlink channel The downlink data is sent on a level channel, wherein the cell level common channel and the downlink user level channel occupy different time domain positions. The present invention solves the problem in the related art that longer-distance coverage requirements cannot be achieved when the transmission power is limited, and then achieves power allocation under the condition that the total power remains unchanged so as to improve the broadcast channel The transmission power can achieve the effect of longer distance coverage.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a downlink data sending method and device, a receiving method and device, and a storage medium. Background technique [0002] Today, with the rapid development of wireless communication technology, spectrum resources have become more and more precious. Governments have become more and more strict in the authorization and use of spectrum resources, and the authorization fees for spectrum resources have become increasingly high. In many regions of the world, wireless spectrum resources are relatively scarce. And the price is expensive, many small and medium-sized operators cannot obtain enough high-quality and continuous spectrum resources, which increases their requirements for wireless communication systems, especially some dedicated networks (for example, facing oceans, high-speed railways, and ground-to-air wireless communication networks ) is difficult to build, and the netw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/26H04W16/28H04W72/00H04W72/04H04W72/08H04B7/06H04L5/00
CPCH04W16/28H04W72/0446H04W52/346H04L5/0023H04L5/0005H04L5/0044H04L5/0073H04W52/143H04B7/0617H04L5/0053H04W16/26H04W72/0453H04W72/23H04W72/54
Inventor 李斌
Owner ZTE CORP
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