CN113316266B

CN113316266B - Audio and video stream transmission method and system based on 5G network

Info

Publication number: CN113316266B
Application number: CN202110591176.9A
Authority: CN
Inventors: 刘舍予; 梁一; 陈德陆; 张赐; 何林
Original assignee: Chengdu Meng Te Si Technology Co Ltd
Current assignee: Chengdu Meng Te Si Technology Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2023-04-07
Anticipated expiration: 2041-05-28
Also published as: CN113316266A

Abstract

The invention discloses an audio and video stream transmission method based on a 5G network, which comprises the following steps: collecting audio and video data by the mobile terminal; monitoring, by the mobile terminal, system information transmitted by the first base station, and monitoring, by the mobile terminal, a first reference signal transmitted by the first base station in a first direction, and monitoring, by the mobile terminal, a second reference signal transmitted by the first base station in a second direction; in response to monitoring the first reference signal and the second reference signal, judging, by the mobile terminal, a first signal quality of the first reference signal and judging, by the mobile terminal, a second signal quality of the second reference signal; if the first signal quality of the first reference signal is judged to be greater than the second signal quality of the second reference signal, the mobile terminal sends a first random access lead code to the first base station; and if the first signal quality of the first reference signal is judged to be less than the second signal quality of the second reference signal, the mobile terminal sends a second random access preamble code to the first base station.

Description

Audio and video stream transmission method and system based on 5G network

Technical Field

The invention relates to the technical field of audio and video transmission, in particular to an audio and video stream transmission method and system based on a 5G network.

Background

The short video is a video in short film, is an internet content transmission mode, and is generally a video transmitted on a new internet media within 5 minutes; with the popularization of mobile terminals and the increasing speed of networks, short and fast mass flow transmission contents are gradually favored by various large platforms, fans and capital.

Prior art CN110825915A discloses a short video tag extraction method, apparatus, computer device and storage medium. The method comprises the following steps: extracting a prior label of the short video from a label word bank according to the description information of the short video; constructing a directed edge between the short video and the short video according to the sequence of watching the short video by the user; accumulating and normalizing all in-degree edges between every two short videos to obtain the weight of the directed edges between the short videos; constructing a prior label vector of the short video through a prior label of the short video; calculating the weight of a directed edge between the prior label vector of the short video and the short video to obtain the final label vector of each short video; based on the final label vector, a final label of the short video is determined.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide an audio and video stream transmission method and system based on a 5G network, which can overcome the defects of the prior art.

In order to achieve the above object, the present invention provides an audio/video stream transmission method based on a 5G network, which is characterized in that the audio/video stream transmission method based on the 5G network comprises the following steps:

collecting audio and video data by the mobile terminal;

monitoring, by a mobile terminal, system information sent by a first base station, monitoring, by the mobile terminal, a first reference signal sent by the first base station in a first direction, and monitoring, by the mobile terminal, a second reference signal sent by the first base station in a second direction, wherein the system information instructs the mobile terminal to send a random access preamble in a first mode;

in response to monitoring the first reference signal and the second reference signal, judging, by the mobile terminal, a first signal quality of the first reference signal and judging, by the mobile terminal, a second signal quality of the second reference signal;

transmitting, by the mobile terminal, a first random access preamble to the first base station if it is determined that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the first random access preamble is associated with a first direction;

transmitting, by the mobile terminal, a second random access preamble to the first base station if it is determined that the first signal quality of the first reference signal is less than the second signal quality of the second reference signal, wherein the second random access preamble is associated with a second direction;

judging whether the load of the first base station for receiving the random access lead code is larger than a load threshold or not by the first base station;

if the load of the first base station for receiving the random access lead code is judged to be larger than the load threshold, the first base station sends a system information updating identifier to the mobile terminal on a first subcarrier set of a physical broadcast channel;

transmitting, by the first base station, updated system information to the mobile terminal in response to transmitting a system information update identifier to the mobile terminal on the first set of subcarriers of the physical broadcast channel, wherein the updated system information instructs the mobile terminal to transmit the random access preamble in the second mode.

In a preferred embodiment, the audio/video streaming method based on the 5G network includes the following steps:

attempting, by the mobile terminal, to decode updated system information on the physical broadcast channel in response to receiving the system information update identifier on the first set of subcarriers of the physical broadcast channel;

transmitting, by the mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction;

transmitting, by the first base station, a first random access response to the mobile terminal in response to receiving the random access preamble;

in response to receiving a first random access response, transmitting, by the mobile terminal, a first PUSCH message to the first base station, wherein the first PUSCH message includes a random access request and an indication for a first direction;

sending, by the first base station, a random access completion message to the mobile terminal in a first direction in response to receiving the first PUSCH message;

in response to receiving the random access completion message, the mobile terminal sends audio and video data to the first base station;

transmitting, by the mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is less than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction;

transmitting, by the first base station, a second random access response to the mobile terminal in response to receiving the random access preamble;

sending, by the mobile terminal, a second PUSCH message to the first base station in response to receiving the second random access response, wherein the second PUSCH message includes the random access request and an indication for a second direction;

transmitting, by the first base station, a random access completion message to the mobile terminal in the second direction in response to receiving the second PUSCH message;

and responding to the received random access completion message, and sending audio and video data to the first base station by the mobile terminal.

transmitting, by the first base station, a third random access response to the mobile terminal in the first direction in response to receiving the first random access preamble, wherein a payload portion of the third random access response indicates to the mobile terminal to listen for a third reference signal transmitted by the first base station in the third direction and a fourth reference signal transmitted by the first base station in the fourth direction;

in response to monitoring the third random access response, monitoring, by the mobile terminal, a third reference signal transmitted by the first base station in a third direction, and monitoring, by the mobile terminal, a fourth reference signal transmitted by the first base station in a fourth direction;

in response to monitoring the third reference signal and the fourth reference signal, judging, by the mobile terminal, a third signal quality of the third reference signal and judging, by the mobile terminal, a fourth signal quality of the fourth reference signal;

if the third signal quality of the third reference signal is judged to be greater than the fourth signal quality of the fourth reference signal, the mobile terminal continuously judges whether updated system information sent by the first base station is received;

if the updated system information sent by the first base station is judged not to be received, sending a third random access preamble code to the first base station by the mobile terminal, wherein the third random access preamble code is associated with a third direction;

if the third signal quality of the third reference signal is judged to be less than the fourth signal quality of the fourth reference signal, the mobile terminal continuously judges whether updated system information sent by the first base station is received;

transmitting, by the mobile terminal, a fourth random access preamble to the first base station if it is determined that the updated system information transmitted by the first base station is not received, wherein the fourth random access preamble is associated with a fourth direction.

In a preferred embodiment, the audio/video streaming transmission method based on the 5G network includes the following steps:

transmitting, by the first base station to the mobile terminal, a fourth random access response in the third direction in response to receiving the third random access preamble, wherein a payload portion of the fourth random access response indicates to the mobile terminal that the first base station is to transmit a message to the mobile terminal in the third direction;

responding to the received fourth random access response, and sending a third PUSCH message to the first base station by the mobile terminal, wherein the third PUSCH message comprises a random access request;

in response to receiving the third PUSCH message, sending, by the first base station, a random access complete message to the mobile terminal in a third direction;

responding to the received random access completion message, and sending audio and video data to the first base station by the mobile terminal;

transmitting, by the first base station, a fifth random access response in the fourth direction to the mobile terminal in response to receiving the fourth random access preamble, wherein a payload portion of the fifth random access response indicates to the mobile terminal that the first base station is to transmit a message in the fourth direction to the mobile terminal;

responding to the received fifth random access response, and sending a fourth PUSCH message to the first base station by the mobile terminal, wherein the fourth PUSCH message comprises a random access request;

transmitting, by the first base station, a random access complete message to the mobile terminal in a fourth direction in response to receiving the fourth PUSCH message;

transmitting, by the first base station, a sixth random access response in the first direction to the mobile terminal in response to receiving the first random access preamble, wherein a payload portion of the sixth random access response indicates to the mobile terminal to listen for a fifth reference signal transmitted by the second base station in the fifth direction and a sixth reference signal transmitted by the second base station in the sixth direction;

in response to monitoring the sixth random access response, monitoring, by the mobile terminal, system information transmitted by the second base station, monitoring, by the mobile terminal, a fifth reference signal transmitted by the second base station in the fifth direction, and monitoring, by the mobile terminal, a sixth reference signal transmitted by the second base station in the sixth direction;

in response to the fifth reference signal and the sixth reference signal being monitored, determining, by the mobile terminal, a fifth signal quality of the fifth reference signal and determining, by the mobile terminal, a sixth signal quality of the sixth reference signal;

if the fifth signal quality of the fifth reference signal is judged to be greater than the sixth signal quality of the sixth reference signal, the mobile terminal continuously judges whether updated system information sent by the second base station is received;

transmitting, by the mobile terminal, a fifth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station is not received, wherein the fifth random access preamble is associated with a fifth direction;

if the fifth signal quality of the fifth reference signal is judged to be less than the sixth signal quality of the sixth reference signal, the mobile terminal continuously judges whether updated system information sent by the second base station is received;

and transmitting, by the mobile terminal, a sixth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station is not received, wherein the sixth random access preamble is associated with the sixth direction.

The invention provides an audio and video stream transmission system based on a 5G network, which is characterized by comprising the following components in part by weight:

a unit for collecting audio/video data by the mobile terminal;

means for monitoring, by the mobile terminal, system information transmitted by a first base station, and monitoring, by the mobile terminal, a first reference signal transmitted by the first base station in a first direction, and monitoring, by the mobile terminal, a second reference signal transmitted by the first base station in a second direction, wherein the system information instructs the mobile terminal to transmit a random access preamble in a first mode;

the mobile terminal is used for responding to the monitoring of the first reference signal and the second reference signal, judging a first signal quality of the first reference signal by the mobile terminal, and judging a second signal quality of the second reference signal by the mobile terminal;

means for transmitting, by the mobile terminal, a first random access preamble to the first base station if it is determined that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the first random access preamble is associated with a first direction;

means for transmitting, by the mobile terminal, a second random access preamble to the first base station if the first signal quality of the first reference signal is determined to be less than a second signal quality of a second reference signal, wherein the second random access preamble is associated with a second direction;

means for determining, by the first base station, whether a load of the first base station to receive the random access preamble is greater than a load threshold;

means for sending, by the first base station, a system information update identifier to the mobile terminal on a first set of subcarriers of a physical broadcast channel if it is determined that a load of the first base station receiving the random access preamble is greater than a load threshold;

means for transmitting, by the first base station, updated system information to the mobile terminal in response to transmitting a system information update identifier to the mobile terminal on the first set of subcarriers of the physical broadcast channel, wherein the updated system information instructs the mobile terminal to transmit the random access preamble in the second mode.

In a preferred embodiment, the audio/video stream transmission system based on the 5G network comprises:

means for attempting, by the mobile terminal, to decode updated system information on the physical broadcast channel in response to receiving the system information update identifier on the first set of subcarriers of the physical broadcast channel;

means for transmitting, by the mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction;

means for transmitting, by the first base station, a first random access response to the mobile terminal in response to receiving the random access preamble;

means for transmitting, by the mobile terminal, a first PUSCH message to the first base station in response to receiving the first random access response, wherein the first PUSCH message comprises a random access request and an indication of a first direction;

means for transmitting, by the first base station, a random access complete message to the mobile terminal in a first direction in response to receiving the first PUSCH message;

a unit for responding to the received random access completion message, and sending audio and video data to the first base station by the mobile terminal;

means for transmitting, by the mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is less than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction;

means for transmitting, by the first base station, a second random access response to the mobile terminal in response to receiving the random access preamble;

means for transmitting, by the mobile terminal to the first base station, a second PUSCH message in response to receiving a second random access response, wherein the second PUSCH message includes a random access request and an indication of a second direction;

means for transmitting, by the first base station, a random access complete message to the mobile terminal in the second direction in response to receiving the second PUSCH message;

and the mobile terminal is used for responding to the received random access completion message and sending audio and video data to the first base station.

means for transmitting, by the first base station, a third random access response in the first direction to the mobile terminal in response to receiving the first random access preamble, wherein a payload portion of the third random access response indicates to the mobile terminal to listen for a third reference signal transmitted by the first base station in the third direction and a fourth reference signal transmitted by the first base station in the fourth direction;

means for monitoring, by the mobile terminal, a third reference signal transmitted by the first base station in the third direction and monitoring, by the mobile terminal, a fourth reference signal transmitted by the first base station in the fourth direction in response to monitoring the third random access response;

means for determining, by the mobile terminal, a third signal quality of the third reference signal and determining, by the mobile terminal, a fourth signal quality of the fourth reference signal in response to monitoring the third reference signal and the fourth reference signal;

means for continuing to determine, by the mobile terminal, whether updated system information sent by the first base station is received if it is determined that the third signal quality of the third reference signal is greater than the fourth signal quality of the fourth reference signal;

means for transmitting, by the mobile terminal, a third random access preamble to the first base station if it is determined that the updated system information transmitted by the first base station is not received, wherein the third random access preamble is associated with a third direction;

means for continuing to determine, by the mobile terminal, whether updated system information transmitted by the first base station is received if it is determined that the third signal quality of the third reference signal is less than the fourth signal quality of the fourth reference signal;

means for transmitting, by the mobile terminal, a fourth random access preamble to the first base station if it is determined that the updated system information transmitted by the first base station is not received, wherein the fourth random access preamble is associated with a fourth direction.

means for transmitting, by the first base station to the mobile terminal, a fourth random access response in the third direction in response to receiving the third random access preamble, wherein a payload portion of the fourth random access response indicates to the mobile terminal that the first base station is to transmit a message to the mobile terminal in the third direction;

means for transmitting, by the mobile terminal to the first base station, a third PUSCH message in response to receiving the fourth random access response, wherein the third PUSCH message includes a random access request;

means for transmitting, by the first base station, a random access complete message to the mobile terminal in a third direction in response to receiving the third PUSCH message;

means for transmitting, by the first base station, a fifth random access response in a fourth direction to the mobile terminal in response to receiving the fourth random access preamble, wherein a payload portion of the fifth random access response indicates to the mobile terminal that the first base station is to transmit a message in the fourth direction to the mobile terminal;

means for transmitting, by the mobile terminal to the first base station, a fourth PUSCH message in response to receiving the fifth random access response, wherein the fourth PUSCH message includes a random access request;

means for transmitting, by the first base station, a random access complete message to the mobile terminal in a fourth direction in response to receiving the fourth PUSCH message;

means for transmitting, by the first base station, a sixth random access response in the first direction to the mobile terminal in response to receiving the first random access preamble, wherein a payload portion of the sixth random access response indicates to the mobile terminal to listen for a fifth reference signal transmitted by the second base station in the fifth direction and a sixth reference signal transmitted by the second base station in the sixth direction;

means for monitoring, by the mobile terminal, system information transmitted by the second base station in response to monitoring the sixth random access response, and monitoring, by the mobile terminal, a fifth reference signal transmitted by the second base station in the fifth direction, and monitoring, by the mobile terminal, a sixth reference signal transmitted by the second base station in the sixth direction;

means for determining, by the mobile terminal, a fifth signal quality of the fifth reference signal and determining, by the mobile terminal, a sixth signal quality of the sixth reference signal in response to monitoring the fifth reference signal and the sixth reference signal;

means for continuing to determine, by the mobile terminal, whether to receive updated system information transmitted by the second base station if it is determined that the fifth signal quality of the fifth reference signal is greater than the sixth signal quality of the sixth reference signal;

means for transmitting, by the mobile terminal, a fifth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station is not received, wherein the fifth random access preamble is associated with a fifth direction;

means for continuing to determine, by the mobile terminal, whether updated system information transmitted by the second base station is received if it is determined that the fifth signal quality of the fifth reference signal is less than the sixth signal quality of the sixth reference signal;

means for transmitting, by the mobile terminal, a sixth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station has not been received, wherein the sixth random access preamble is associated with a sixth direction.

Compared with the prior art, the invention has the advantages that the short video is a social and entertainment mode which is very popular among young people at present, and a plurality of commercial industries such as diet, entertainment, shopping and the like can be driven through the transmission of the short video. The short video can be transmitted without the help of a wireless transmission technology, and the application provides an audio and video stream transmission method and system based on a 5G network aiming at the requirements of the prior art.

Drawings

Fig. 1 is a schematic diagram of a system architecture according to an embodiment of the present invention.

FIG. 2 is a flow diagram of a method according to an embodiment of the invention.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

FIG. 2 is a flow diagram of a method according to an embodiment of the invention. As shown in the figure, the method of the present invention comprises the steps of:

step 101: collecting audio and video data by the mobile terminal;

step 102: monitoring, by a mobile terminal, system information sent by a first base station, monitoring, by the mobile terminal, a first reference signal sent by the first base station in a first direction, and monitoring, by the mobile terminal, a second reference signal sent by the first base station in a second direction, wherein the system information instructs the mobile terminal to send a random access preamble in a first mode;

step 103: in response to monitoring the first reference signal and the second reference signal, judging, by the mobile terminal, a first signal quality of the first reference signal and judging, by the mobile terminal, a second signal quality of the second reference signal;

step 104: transmitting, by the mobile terminal, a first random access preamble to the first base station if it is determined that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the first random access preamble is associated with a first direction; the association of the first random access preamble with the first direction may be transmitted in system information; in the technical scheme of beam forming, the first direction refers to a first beam direction, and the second direction refers to a second beam direction;

step 105: transmitting, by the mobile terminal, a second random access preamble to the first base station if it is determined that the first signal quality of the first reference signal is less than the second signal quality of the second reference signal, wherein the second random access preamble is associated with a second direction;

step 106: judging whether the load of the first base station for receiving the random access lead code is greater than a load threshold or not by the first base station; it should be understood by those skilled in the art that the load of receiving the random access preamble refers to the number of random accesses received by the base station per unit time, and if the load value is low, the mobile terminal can successfully randomly access the base station even if the random access preamble cannot be randomly selected; in one embodiment, the base station may further randomize the selection and transmission of the random access preamble by updating the corresponding relationship between the random access preamble and the beam direction for multiple times, so as to facilitate the access of the mobile terminal;

step 107: if the load of the first base station for receiving the random access lead code is judged to be larger than the load threshold, the first base station sends a system information updating identifier to the mobile terminal on a first subcarrier set of a physical broadcast channel;

step 108: transmitting, by the first base station, updated system information to the mobile terminal in response to transmitting a system information update identifier to the mobile terminal on the first set of subcarriers of the physical broadcast channel, wherein the updated system information instructs the mobile terminal to transmit the random access preamble in the second mode.

In a preferred embodiment, the audio/video streaming transmission method based on the 5G network includes the following steps: attempting, by the mobile terminal, to decode updated system information on the physical broadcast channel in response to receiving the system information update identifier on the first set of subcarriers of the physical broadcast channel; transmitting, by the mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction; the measure of signal quality may be RSRP or RSRQ; transmitting, by the first base station, a first random access response to the mobile terminal in response to receiving the random access preamble; in response to receiving a first random access response, transmitting, by the mobile terminal, a first PUSCH message to the first base station, wherein the first PUSCH message includes a random access request and an indication for a first direction; sending, by the first base station, a random access completion message to the mobile terminal in the first direction in response to receiving the first PUSCH message; in response to receiving the random access completion message, the mobile terminal sends audio and video data to the first base station; transmitting, by the mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is less than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction; transmitting, by the first base station, a second random access response to the mobile terminal in response to receiving the random access preamble; sending, by the mobile terminal, a second PUSCH message to the first base station in response to receiving the second random access response, wherein the second PUSCH message includes the random access request and an indication for a second direction; transmitting, by the first base station, a random access completion message to the mobile terminal in the second direction in response to receiving the second PUSCH message; and responding to the received random access completion message, and sending audio and video data to the first base station by the mobile terminal.

In a preferred embodiment, the audio/video streaming method based on the 5G network includes the following steps: transmitting, by the first base station, a third random access response to the mobile terminal in the first direction in response to receiving the first random access preamble, wherein a payload portion of the third random access response indicates to the mobile terminal to listen for a third reference signal transmitted by the first base station in the third direction and a fourth reference signal transmitted by the first base station in the fourth direction; in response to monitoring the third random access response, monitoring, by the mobile terminal, a third reference signal transmitted by the first base station in the third direction, and monitoring, by the mobile terminal, a fourth reference signal transmitted by the first base station in the fourth direction; in response to monitoring the third reference signal and the fourth reference signal, judging, by the mobile terminal, a third signal quality of the third reference signal and judging, by the mobile terminal, a fourth signal quality of the fourth reference signal; if the third signal quality of the third reference signal is judged to be greater than the fourth signal quality of the fourth reference signal, the mobile terminal continuously judges whether updated system information sent by the first base station is received; if the updated system information sent by the first base station is judged not to be received, sending a third random access preamble code to the first base station by the mobile terminal, wherein the third random access preamble code is associated with a third direction; if the third signal quality of the third reference signal is judged to be less than the fourth signal quality of the fourth reference signal, the mobile terminal continuously judges whether updated system information sent by the first base station is received; transmitting, by the mobile terminal, a fourth random access preamble to the first base station if it is determined that the updated system information transmitted by the first base station is not received, wherein the fourth random access preamble is associated with a fourth direction.

In a preferred embodiment, the audio/video streaming method based on the 5G network includes the following steps: transmitting, by the first base station, a fourth random access response to the mobile terminal in the third direction in response to receiving the third random access preamble, wherein a payload portion of the fourth random access response indicates to the mobile terminal that the first base station will transmit a message to the mobile terminal in the third direction; responding to the received fourth random access response, and sending a third PUSCH message to the first base station by the mobile terminal, wherein the third PUSCH message comprises a random access request; in response to receiving the third PUSCH message, sending, by the first base station, a random access complete message to the mobile terminal in a third direction; in response to receiving the random access completion message, the mobile terminal sends audio and video data to the first base station; transmitting, by the first base station, a fifth random access response in a fourth direction to the mobile terminal in response to receiving the fourth random access preamble, wherein a payload portion of the fifth random access response indicates to the mobile terminal that the first base station is to transmit a message in the fourth direction to the mobile terminal; responding to the received fifth random access response, and sending a fourth PUSCH message to the first base station by the mobile terminal, wherein the fourth PUSCH message comprises a random access request; transmitting, by the first base station, a random access complete message to the mobile terminal in a fourth direction in response to receiving the fourth PUSCH message; and responding to the received random access completion message, and sending audio and video data to the first base station by the mobile terminal.

In a preferred embodiment, the audio/video streaming method based on the 5G network includes the following steps: transmitting, by the first base station, a sixth random access response in the first direction to the mobile terminal in response to receiving the first random access preamble, wherein a payload portion of the sixth random access response indicates to the mobile terminal to listen for a fifth reference signal transmitted by the second base station in the fifth direction and a sixth reference signal transmitted by the second base station in the sixth direction; in response to monitoring the sixth random access response, monitoring, by the mobile terminal, system information transmitted by the second base station, monitoring, by the mobile terminal, a fifth reference signal transmitted by the second base station in the fifth direction, and monitoring, by the mobile terminal, a sixth reference signal transmitted by the second base station in the sixth direction; in response to the fifth reference signal and the sixth reference signal being monitored, determining, by the mobile terminal, a fifth signal quality of the fifth reference signal and determining, by the mobile terminal, a sixth signal quality of the sixth reference signal; if the fifth signal quality of the fifth reference signal is judged to be greater than the sixth signal quality of the sixth reference signal, the mobile terminal continuously judges whether updated system information sent by the second base station is received; transmitting, by the mobile terminal, a fifth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station is not received, wherein the fifth random access preamble is associated with a fifth direction; if the fifth signal quality of the fifth reference signal is judged to be less than the sixth signal quality of the sixth reference signal, the mobile terminal continuously judges whether updated system information sent by the second base station is received; and transmitting, by the mobile terminal, a sixth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station is not received, wherein the sixth random access preamble is associated with the sixth direction.

The invention also provides an audio and video stream transmission system based on the 5G network, which comprises the following components: a unit for collecting audio/video data by the mobile terminal; means for monitoring, by a mobile terminal, system information transmitted by a first base station, and monitoring, by the mobile terminal, a first reference signal transmitted by the first base station in a first direction, and monitoring, by the mobile terminal, a second reference signal transmitted by the first base station in a second direction, wherein the system information instructs the mobile terminal to transmit a random access preamble in a first mode; the mobile terminal is used for responding to the monitoring of the first reference signal and the second reference signal, judging a first signal quality of the first reference signal by the mobile terminal, and judging a second signal quality of the second reference signal by the mobile terminal; means for transmitting, by the mobile terminal, a first random access preamble to the first base station if it is determined that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the first random access preamble is associated with a first direction; means for transmitting, by the mobile terminal, a second random access preamble to the first base station if the first signal quality of the first reference signal is determined to be less than a second signal quality of a second reference signal, wherein the second random access preamble is associated with a second direction; means for determining, by the first base station, whether a load of the first base station to receive the random access preamble is greater than a load threshold; means for sending, by the first base station, a system information update identifier to the mobile terminal on a first set of subcarriers of a physical broadcast channel if it is determined that a load of the first base station receiving the random access preamble is greater than a load threshold; means for transmitting, by the first base station, updated system information to the mobile terminal in response to transmitting a system information update identifier to the mobile terminal on the first set of subcarriers of the physical broadcast channel, wherein the updated system information instructs the mobile terminal to transmit the random access preamble in the second mode.

In a preferred embodiment, the audio/video streaming system based on the 5G network includes: means for attempting, by the mobile terminal, to decode updated system information on a physical broadcast channel in response to receiving a system information update identifier on a first set of subcarriers of the physical broadcast channel; means for transmitting, by the mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction; means for transmitting, by the first base station, a first random access response to the mobile terminal in response to receiving the random access preamble; means for transmitting, by the mobile terminal to the first base station, a first PUSCH message in response to receiving the first random access response, wherein the first PUSCH message includes a random access request and an indication of a first direction for transmitting, by the first base station, a random access complete message in the first direction to the mobile terminal in response to receiving the first PUSCH message; a unit for transmitting audio and video data to the first base station by the mobile terminal in response to receiving the random access completion message; means for transmitting, by the mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is less than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction; means for transmitting, by the first base station, a second random access response to the mobile terminal in response to receiving the random access preamble; means for transmitting, by the mobile terminal, a second PUSCH message to the first base station in response to receiving a second random access response, wherein the second PUSCH message comprises the random access request and an indication of a second direction; means for transmitting, by the first base station, a random access complete message to the mobile terminal in the second direction in response to receiving the second PUSCH message; and the mobile terminal is used for responding to the received random access completion message and sending audio and video data to the first base station.

In a preferred embodiment, the audio/video stream transmission system based on the 5G network comprises: means for transmitting, by the first base station, a third random access response in the first direction to the mobile terminal in response to receiving the first random access preamble, wherein a payload portion of the third random access response indicates to the mobile terminal to listen for a third reference signal transmitted by the first base station in the third direction and a fourth reference signal transmitted by the first base station in the fourth direction; means for monitoring, by the mobile terminal, a third reference signal transmitted by the first base station in the third direction and monitoring, by the mobile terminal, a fourth reference signal transmitted by the first base station in the fourth direction in response to monitoring the third random access response; means for determining, by the mobile terminal, a third signal quality of the third reference signal and determining, by the mobile terminal, a fourth signal quality of the fourth reference signal in response to monitoring the third reference signal and the fourth reference signal; means for continuing to determine, by the mobile terminal, whether updated system information sent by the first base station is received if it is determined that the third signal quality of the third reference signal is greater than the fourth signal quality of the fourth reference signal; means for transmitting, by the mobile terminal, a third random access preamble to the first base station if it is determined that the updated system information transmitted by the first base station is not received, wherein the third random access preamble is associated with a third direction; means for continuing to determine, by the mobile terminal, whether updated system information transmitted by the first base station is received if it is determined that the third signal quality of the third reference signal is less than the fourth signal quality of the fourth reference signal; means for transmitting, by the mobile terminal, a fourth random access preamble to the first base station if it is determined that the updated system information transmitted by the first base station is not received, wherein the fourth random access preamble is associated with a fourth direction.

In a preferred embodiment, the audio/video streaming system based on the 5G network includes: means for transmitting, by the first base station to the mobile terminal, a fourth random access response in the third direction in response to receiving the third random access preamble, wherein a payload portion of the fourth random access response indicates to the mobile terminal that the first base station is to transmit a message to the mobile terminal in the third direction; means for transmitting, by the mobile terminal to the first base station, a third PUSCH message in response to receiving the fourth random access response, wherein the third PUSCH message includes a random access request; means for transmitting, by the first base station, a random access complete message to the mobile terminal in a third direction in response to receiving the third PUSCH message; a unit for responding to the received random access completion message, and sending audio and video data to the first base station by the mobile terminal; means for transmitting, by the first base station, a fifth random access response in a fourth direction to the mobile terminal in response to receiving the fourth random access preamble, wherein a payload portion of the fifth random access response indicates to the mobile terminal that the first base station is to transmit a message in the fourth direction to the mobile terminal; means for transmitting, by the mobile terminal to the first base station, a fourth PUSCH message in response to receiving the fifth random access response, wherein the fourth PUSCH message includes a random access request; means for transmitting, by the first base station, a random access completion message to the mobile terminal in a fourth direction in response to receiving the fourth PUSCH message; and the mobile terminal is used for responding to the received random access completion message and sending audio and video data to the first base station.

In a preferred embodiment, the audio/video stream transmission system based on the 5G network comprises: means for transmitting, by the first base station, a sixth random access response in the first direction to the mobile terminal in response to receiving the first random access preamble, wherein a payload portion of the sixth random access response indicates to the mobile terminal to listen for a fifth reference signal transmitted by the second base station in the fifth direction and a sixth reference signal transmitted by the second base station in the sixth direction; means for monitoring, by the mobile terminal, system information transmitted by the second base station in response to monitoring the sixth random access response, and monitoring, by the mobile terminal, a fifth reference signal transmitted by the second base station in the fifth direction, and monitoring, by the mobile terminal, a sixth reference signal transmitted by the second base station in the sixth direction; means for determining, by the mobile terminal, a fifth signal quality of the fifth reference signal and determining, by the mobile terminal, a sixth signal quality of the sixth reference signal in response to monitoring the fifth reference signal and the sixth reference signal; means for continuing to determine, by the mobile terminal, whether to receive updated system information transmitted by the second base station if it is determined that the fifth signal quality of the fifth reference signal is greater than the sixth signal quality of the sixth reference signal; means for transmitting, by the mobile terminal, a fifth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station is not received, wherein the fifth random access preamble is associated with a fifth direction; means for continuing to determine, by the mobile terminal, whether updated system information transmitted by the second base station is received if it is determined that the fifth signal quality of the fifth reference signal is less than the sixth signal quality of the sixth reference signal; means for transmitting, by the mobile terminal, a sixth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station has not been received, wherein the sixth random access preamble is associated with a sixth direction.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The audio and video stream transmission method based on the 5G network is characterized by comprising the following steps of:

collecting audio and video data by the mobile terminal;

monitoring, by a mobile terminal, system information transmitted by a first base station, and monitoring, by the mobile terminal, a first reference signal transmitted by the first base station in a first direction, and monitoring, by the mobile terminal, a second reference signal transmitted by the first base station in a second direction, wherein the system information instructs the mobile terminal to transmit a random access preamble in a first mode;

transmitting, by a mobile terminal, a first random access preamble to the first base station if it is determined that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the first random access preamble is associated with the first direction;

transmitting, by a mobile terminal, a second random access preamble to the first base station if it is determined that a first signal quality of the first reference signal is less than a second signal quality of the second reference signal, wherein the second random access preamble is associated with the second direction;

judging whether the load of the first base station for receiving the random access lead code is greater than a load threshold or not by the first base station;

transmitting, by the first base station, updated system information to the mobile terminal in response to transmitting a system information update identifier to the mobile terminal on a first set of subcarriers of a physical broadcast channel, wherein the updated system information instructs the mobile terminal to transmit a random access preamble in a second mode,

transmitting, by a mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction;

transmitting, by a mobile terminal, a first PUSCH message to the first base station in response to receiving the first random access response, wherein the first PUSCH message includes a random access request and an indication of a first direction;

transmitting, by a first base station, a random access completion message to the mobile terminal in a first direction in response to receiving the first PUSCH message;

responding to the received random access completion message, and sending the audio and video data to the first base station by the mobile terminal;

transmitting, by a mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is less than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction;

transmitting, by the mobile terminal, a second PUSCH message to the first base station in response to receiving the second random access response, wherein the second PUSCH message comprises a random access request and an indication of a second direction;

transmitting, by the first base station, a random access completion message to the mobile terminal in a second direction in response to receiving the second PUSCH message;

and responding to the received random access completion message, and sending the audio and video data to the first base station by the mobile terminal.

2. The audio-video streaming method based on the 5G network according to claim 1, wherein the audio-video streaming method based on the 5G network further comprises the following steps:

transmitting, by the mobile terminal, a third random access preamble to the first base station if it is determined that updated system information transmitted by the first base station is not received, wherein the third random access preamble is associated with the third direction;

if the third signal quality of the third reference signal is judged to be smaller than the fourth signal quality of the fourth reference signal, the mobile terminal continuously judges whether updated system information sent by the first base station is received;

transmitting, by the mobile terminal, a fourth random access preamble to the first base station if it is determined that the updated system information transmitted by the first base station is not received, wherein the fourth random access preamble is associated with the fourth direction.

3. The audio-video streaming method based on the 5G network according to claim 2, wherein the audio-video streaming method based on the 5G network further comprises the following steps:

in response to receiving the fourth random access response, sending a third PUSCH message to the first base station by the mobile terminal, wherein the third PUSCH message comprises a random access request;

sending, by the first base station, a random access completion message to the mobile terminal in a third direction in response to receiving the third PUSCH message;

transmitting, by the first base station, a fifth random access response in a fourth direction to the mobile terminal in response to receiving the fourth random access preamble, wherein a payload portion of the fifth random access response indicates to the mobile terminal that the first base station is to transmit a message in the fourth direction to the mobile terminal;

responding to the fifth random access response, and sending a fourth PUSCH message to the first base station by the mobile terminal, wherein the fourth PUSCH message comprises a random access request;

transmitting, by the first base station, a random access completion message to the mobile terminal in a fourth direction in response to receiving the fourth PUSCH message;

4. The audio-visual streaming method based on a 5G network according to claim 3, wherein the audio-visual streaming method based on a 5G network further comprises the steps of:

in response to monitoring the fifth reference signal and the sixth reference signal, determining, by the mobile terminal, a fifth signal quality of the fifth reference signal and determining, by the mobile terminal, a sixth signal quality of the sixth reference signal;

if the fifth signal quality of the fifth reference signal is judged to be greater than the sixth signal quality of the sixth reference signal, the mobile terminal continuously judges whether updated system information sent by a second base station is received;

transmitting, by the mobile terminal, a fifth random access preamble to a second base station if it is determined that updated system information transmitted by the second base station is not received, wherein the fifth random access preamble is associated with the fifth direction;

if the fifth signal quality of the fifth reference signal is judged to be smaller than the sixth signal quality of the sixth reference signal, the mobile terminal continuously judges whether updated system information sent by a second base station is received;

transmitting, by the mobile terminal, a sixth random access preamble to the second base station if it is determined that the updated system information transmitted by the second base station is not received, wherein the sixth random access preamble is associated with the sixth direction.

5. An audio and video stream transmission system based on a 5G network is characterized in that the audio and video stream transmission system based on the 5G network comprises:

a unit for collecting audio/video data by the mobile terminal;

means for monitoring, by a mobile terminal, system information transmitted by a first base station, and monitoring, by the mobile terminal, a first reference signal transmitted by the first base station in a first direction, and monitoring, by the mobile terminal, a second reference signal transmitted by the first base station in a second direction, wherein the system information instructs the mobile terminal to transmit a random access preamble in a first mode;

means for determining, by a mobile terminal, a first signal quality of the first reference signal and determining, by the mobile terminal, a second signal quality of the second reference signal in response to monitoring the first reference signal and the second reference signal;

means for transmitting, by a mobile terminal, a first random access preamble to the first base station if a first signal quality of the first reference signal is determined to be greater than a second signal quality of the second reference signal, wherein the first random access preamble is associated with the first direction;

means for transmitting, by a mobile terminal, a second random access preamble to the first base station if it is determined that a first signal quality of the first reference signal is less than a second signal quality of the second reference signal, wherein the second random access preamble is associated with the second direction;

means for determining, by a first base station, whether a load of the first base station receiving a random access preamble is greater than a load threshold;

means for transmitting, by a first base station, updated system information to the mobile terminal in response to transmitting a system information update identifier to the mobile terminal on a first set of subcarriers of a physical broadcast channel, wherein the updated system information instructs the mobile terminal to transmit a random access preamble in a second mode,

means for attempting, by the mobile terminal, to decode updated system information on a physical broadcast channel in response to receiving the system information update identifier on a first set of subcarriers of the physical broadcast channel;

means for transmitting, by a mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is greater than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction;

means for transmitting, by a first base station, a first random access response to the mobile terminal in response to receiving the random access preamble;

means for transmitting, by a mobile terminal, a first PUSCH message to the first base station in response to receiving the first random access response, wherein the first PUSCH message comprises a random access request and an indication of a first direction;

means for transmitting, by a first base station, a random access completion message to the mobile terminal in a first direction in response to receiving the first PUSCH message;

a unit for sending the audio and video data to the first base station by the mobile terminal in response to receiving the random access completion message;

means for transmitting, by a mobile terminal, a random access preamble to the first base station in response to receiving the updated system information and in response to determining that a first signal quality of the first reference signal is less than a second signal quality of the second reference signal, wherein the random access preamble is not associated with the first direction and the random access preamble is not associated with the second direction;

means for transmitting, by a mobile terminal, a second PUSCH message to the first base station in response to receiving the second random access response, wherein the second PUSCH message comprises a random access request and an indication of a second direction;

means for transmitting, by the first base station, a random access complete message to the mobile terminal in a second direction in response to receiving the second PUSCH message;

and the mobile terminal is used for responding to the received random access completion message and sending the audio and video data to the first base station.

6. The audio-video streaming system based on the 5G network according to claim 5, wherein the audio-video streaming system based on the 5G network further comprises:

means for transmitting, by the first base station to the mobile terminal, a third random access response in the first direction in response to receiving the first random access preamble, wherein a payload portion of the third random access response indicates to the mobile terminal to listen for a third reference signal transmitted by the first base station in the third direction and a fourth reference signal transmitted by the first base station in the fourth direction;

means for monitoring, by the mobile terminal, a third reference signal transmitted by the first base station in a third direction and monitoring, by the mobile terminal, a fourth reference signal transmitted by the first base station in a fourth direction in response to monitoring the third random access response;

means for determining, by the mobile terminal, a third signal quality of the third reference signal and determining, by the mobile terminal, a fourth signal quality of the fourth reference signal in response to listening for the third reference signal and the fourth reference signal;

means for continuing to determine, by the mobile terminal, whether updated system information transmitted by the first base station is received if it is determined that the third signal quality of the third reference signal is greater than the fourth signal quality of the fourth reference signal;

means for transmitting, by a mobile terminal, a third random access preamble to a first base station if it is determined that updated system information transmitted by the first base station is not received, wherein the third random access preamble is associated with the third direction;

means for continuing to determine, by the mobile terminal, whether updated system information sent by the first base station is received if it is determined that the third signal quality of the third reference signal is less than the fourth signal quality of the fourth reference signal;

means for transmitting, by a mobile terminal, a fourth random access preamble to a first base station if it is determined that updated system information transmitted by the first base station is not received, wherein the fourth random access preamble is associated with the fourth direction.

7. The audio-video streaming system based on the 5G network according to claim 6, wherein the audio-video streaming system based on the 5G network further comprises:

means for transmitting, by a first base station, a fourth random access response to the mobile terminal in a third direction in response to receiving the third random access preamble, wherein a payload portion of the fourth random access response indicates to the mobile terminal that the first base station is to transmit a message to the mobile terminal in the third direction;

means for transmitting, by the first base station, a random access completion message to the mobile terminal in a third direction in response to receiving the third PUSCH message;

means for transmitting, by the mobile terminal, a fourth PUSCH message to the first base station in response to receiving the fifth random access response, wherein the fourth PUSCH message comprises a random access request;

means for transmitting, by the first base station, a random access completion message in a fourth direction to the mobile terminal in response to receiving the fourth PUSCH message;

8. The audio-video streaming system based on the 5G network according to claim 7, wherein the audio-video streaming system based on the 5G network further comprises:

means for determining, by the mobile terminal, a fifth signal quality of the fifth reference signal and determining, by the mobile terminal, a sixth signal quality of the sixth reference signal in response to the fifth reference signal and the sixth reference signal being monitored;

means for continuing to determine, by the mobile terminal, whether updated system information transmitted by a second base station is received if it is determined that a fifth signal quality of the fifth reference signal is greater than a sixth signal quality of the sixth reference signal;

means for transmitting, by a mobile terminal, a fifth random access preamble to a second base station if it is determined that updated system information transmitted by the second base station is not received, wherein the fifth random access preamble is associated with the fifth direction;

means for continuing to determine, by the mobile terminal, whether updated system information transmitted by a second base station is received if it is determined that a fifth signal quality of the fifth reference signal is less than a sixth signal quality of the sixth reference signal;

means for transmitting, by a mobile terminal, a sixth random access preamble to a second base station if it is determined that updated system information transmitted by the second base station has not been received, wherein the sixth random access preamble is associated with the sixth direction.