CN113472508A

CN113472508A - Method and system for transmitting task key information based on 5G

Info

Publication number: CN113472508A
Application number: CN202110733199.9A
Authority: CN
Inventors: 郭雨清
Original assignee: Beijing Beiyaoxin Technology Co ltd
Current assignee: Beijing Beiyaoxin Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-10-01

Abstract

The invention discloses a method for transmitting mission critical information based on 5G, which comprises the following steps: monitoring, by a first mobile terminal, a first PDCCH message sent by a base station in a first subframe, wherein the first PDCCH message indicates to the first mobile terminal first PDSCH resources for transmitting data; receiving, by the first mobile terminal, data in the first PDSCH resources in the first subframe in response to monitoring the first PDCCH message; receiving, by the second mobile terminal, the task key information; transmitting, by the second mobile terminal, a scheduling request to the base station; transmitting, by the base station, a second PDCCH message to the second mobile terminal in response to receiving the scheduling request; in response to receiving the second PDCCH message, the second mobile terminal sends task critical information to the base station in the first subframe; in response to transmitting the second PDCCH message to the second mobile terminal, a third PDCCH message is transmitted by the base station to the first mobile terminal in a second subframe.

Description

Method and system for transmitting task key information based on 5G

Technical Field

The present invention relates to the field of 5G technologies, and in particular, to a method and a system for transmitting mission-critical information based on 5G.

Background

The fifth Generation Mobile Communication Technology (english: 5th Generation Mobile Communication Technology, abbreviated as 5G) is a new Generation broadband Mobile Communication Technology with the characteristics of high speed, low time delay and large connection, and is a network infrastructure for realizing man-machine-object interconnection.

Prior art CN107210902B discloses a technique by which a receiving device can detect signals associated with low latency transmissions and decode non-low latency communications accordingly. The receiving device may receive an indicator from the transmitting device indicating where and when the low latency communication occurred. The indication may specify frequency resources or symbols used for low latency communications. The indicator may be transmitted during the same subframe as the low latency communication, at the end of the subframe, or during a subsequent subframe. The receiving device may use the indicator to mitigate low-latency interference, generate channel estimates, and reliably decode non-low-latency communications.

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 already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a method and a system for transmitting mission-critical information based on 5G, which can overcome the defects of the prior art.

In order to achieve the above object, the present invention provides a 5G-based method for transmitting mission-critical information, wherein the 5G-based method for transmitting mission-critical information comprises the steps of:

monitoring, by a first mobile terminal, a first PDCCH message sent by a base station in a first subframe, wherein the first PDCCH message indicates to the first mobile terminal first PDSCH resources for transmitting data;

receiving, by the first mobile terminal, data in first PDSCH resources in a first subframe in response to monitoring the first PDCCH message, wherein the first PDSCH resources occupy a first frequency band in the frequency domain and a first subset of symbols in the first subframe in the time domain;

receiving, by the second mobile terminal, the task key information;

sending a scheduling request to the base station by the second mobile terminal, wherein the scheduling request indicates to the base station that the second mobile terminal is to send task key information to the base station;

transmitting, by the base station to the second mobile terminal, a second PDCCH message in response to receiving the scheduling request, wherein the second PDCCH message indicates to the second mobile terminal a first PUSCH resource for transmitting uplink data;

transmitting, by the second mobile terminal, in response to receiving the second PDCCH message, the mission critical information to the base station in a first subframe, wherein the first PUSCH resource occupies a second frequency band in the frequency domain and a second subset of symbols in the first subframe in the time domain, wherein the first frequency band at least partially overlaps the second frequency band, the second subset of symbols being a subset of the first subset of symbols;

in response to transmitting the second PDCCH message to the second mobile terminal, transmitting, by the base station, a third PDCCH message to the first mobile terminal in a second subframe, wherein the third PDCCH message includes at least a first field and a second field, and wherein the second subframe is a subframe immediately following the first subframe;

obtaining, by the first mobile terminal, a first field in response to receiving the third PDCCH message, wherein the first field indicates a first number of symbols.

In a preferred embodiment, the method for transmitting mission-critical information based on 5G comprises the following steps:

obtaining, by the first mobile terminal, a second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, and a fourth bit;

determining, by the first mobile terminal, a starting symbol before the first number of symbols from a last symbol of the first subframe forward in response to obtaining the second field and in response to determining that there are four bits in the second field;

equally dividing, by the first mobile terminal, a symbol between the starting symbol and the last symbol of the first subframe into four symbol groups in response to determining the starting symbol before the first number of symbols from the last symbol of the first subframe onwards;

determining, by the first mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to equally dividing a symbol between the starting symbol and the last symbol of the first subframe into four symbol groups;

determining, by the first mobile terminal, that data in a first symbol group of the four symbol groups is to be transmitted to the first mobile terminal if the first bit is 0;

determining, by the first mobile terminal, that a first symbol group of the four symbol groups is to be used for the second mobile terminal if the first bit is 1;

determining, by the first mobile terminal, that data in a second symbol group of the four symbol groups is to be transmitted to the first mobile terminal if the second bit is 0;

determining, by the first mobile terminal, that a second symbol group of the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

determining, by the first mobile terminal, that data in a third symbol group of the four symbol groups is to be transmitted to the first mobile terminal if the third bit is 0;

determining, by the first mobile terminal, that a third symbol group of the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

determining, by the first mobile terminal, that data in a fourth symbol group of the four symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0;

if the fourth bit is 1, it is determined by the first mobile terminal that a fourth symbol group of the four symbol groups is to be used for the second mobile terminal.

monitoring, by a third mobile terminal, a fourth PDCCH message sent by the base station in the first subframe, wherein the fourth PDCCH message indicates to the third mobile terminal a second PDSCH resource for sending data;

receiving, by a third mobile terminal, data in a second PDSCH resource in a first subframe in response to monitoring for a fourth PDCCH message, wherein the second PDSCH resource occupies a third frequency band in the frequency domain and occupies a first subset of symbols in the first subframe in the time domain, wherein the third frequency band at least partially overlaps the second frequency band;

in response to transmitting the second PDCCH message to the second mobile terminal, transmitting, by the base station, a third PDCCH message to a third mobile terminal in a second subframe, wherein the third PDCCH message includes at least a first field and a second field, and wherein the second subframe is a subframe immediately following the first subframe;

obtaining, by the third mobile terminal, a first field in response to receiving the third PDCCH message, wherein the first field indicates a first number of symbols;

obtaining, by the third mobile terminal, a second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, and a fourth bit;

determining, by the third mobile terminal, a starting symbol before the first number of symbols from a last symbol of the first subframe forward in response to obtaining the second field and in response to determining that there are four bits in the second field;

equally dividing, by the third mobile terminal, the symbols between the starting symbol and the last symbol of the first subframe into four symbol groups in response to determining the starting symbol before the first number of symbols from the last symbol of the first subframe onwards;

determining, by the third mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to equally dividing a symbol between the starting symbol and the last symbol of the first subframe into four symbol groups;

determining, by the third mobile terminal, that data in a first symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the first bit is 0;

determining, by the third mobile terminal, that a first symbol group of the four symbol groups is to be used for the second mobile terminal if the first bit is 1;

determining, by the third mobile terminal, that data in a second symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the second bit is 0;

determining, by the third mobile terminal, that a second symbol group of the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

determining, by the third mobile terminal, that data in a third symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the third bit is 0;

determining, by the third mobile terminal, that a third symbol group of the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

determining, by the third mobile terminal, that data in a fourth symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the fourth bit is 0;

if the fourth bit is 1, it is determined by the third mobile terminal that a fourth symbol group of the four symbol groups is to be used for the second mobile terminal.

obtaining, by the first mobile terminal, a second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit;

determining, by the first mobile terminal, a starting symbol before the first number of symbols from a last symbol of the first subframe forward in response to obtaining the second field and in response to determining that there are six bits in the second field;

equally dividing, by the first mobile terminal, symbols between the starting symbol and the last symbol of the first subframe into six symbol groups in response to determining the starting symbol before the first number of symbols from the last symbol of the first subframe onwards;

determining, by the first mobile terminal, whether the first bit, the second bit, the third bit, the fourth bit, the fifth bit, and the sixth bit are 0 in response to equally dividing a symbol between the starting symbol and the last symbol of the first subframe into six symbol groups;

determining, by the first mobile terminal, that data in a first symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the first bit is 0;

if the first bit is 1, it is determined by the first mobile terminal that a first symbol group of the six symbol groups is to be used for the second mobile terminal.

determining, by the first mobile terminal, that data in a second symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the second bit is 0;

determining, by the first mobile terminal, that a second symbol group of the six symbol groups is to be used for the second mobile terminal if the second bit is 1;

determining, by the first mobile terminal, that data in a third symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the third bit is 0;

determining, by the first mobile terminal, that a third symbol group of the six symbol groups is to be used for the second mobile terminal if the third bit is 1;

determining, by the first mobile terminal, that data in a fourth symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0;

determining, by the first mobile terminal, that a fourth symbol group of the six symbol groups is to be used for the second mobile terminal if the fourth bit is 1;

determining, by the first mobile terminal, that data in a fifth symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the fifth bit is 0;

determining, by the first mobile terminal, that a fifth symbol group of the six symbol groups is to be used for the second mobile terminal if the fifth bit is 1;

determining, by the first mobile terminal, that data in a sixth symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the sixth bit is 0;

if the sixth bit is 1, it is determined by the first mobile terminal that a sixth symbol group of the six symbol groups is to be used for the second mobile terminal.

The invention provides a system for transmitting mission-critical information based on 5G, which is characterized in that the system for transmitting the mission-critical information based on 5G comprises:

means for monitoring, by a first mobile terminal, a first PDCCH message transmitted by a base station in a first subframe, wherein the first PDCCH message indicates to the first mobile terminal first PDSCH resources for transmitting data;

means for receiving, by a first mobile terminal, data in first PDSCH resources in a first subframe in response to monitoring for a first PDCCH message, wherein the first PDSCH resources occupy a first frequency band in the frequency domain and a first subset of symbols in the first subframe in the time domain;

means for receiving, by a second mobile terminal, mission critical information;

means for transmitting a scheduling request by the second mobile terminal to the base station, wherein the scheduling request indicates to the base station that the second mobile terminal is to transmit mission critical information to the base station;

means for transmitting, by the base station to the second mobile terminal, a second PDCCH message in response to receiving the scheduling request, wherein the second PDCCH message indicates to the second mobile terminal a first PUSCH resource for transmitting uplink data;

means for transmitting, by a second mobile terminal, in response to receiving a second PDCCH message, mission-critical information to a base station in a first subframe, wherein a first PUSCH resource occupies a second frequency band in a frequency domain and occupies a second subset of symbols in the first subframe in a time domain, wherein the first frequency band at least partially overlaps the second frequency band, the second subset of symbols being a subset of the first subset of symbols;

means for transmitting, by the base station, a third PDCCH message to the first mobile terminal in a second subframe in response to transmitting the second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least a first field and a second field, and wherein the second subframe is a subframe immediately following the first subframe;

means for obtaining, by the first mobile terminal, a first field in response to receiving the third PDCCH message, wherein the first field indicates the first number of symbols.

In a preferred embodiment, the 5G-based system for transmitting mission-critical information comprises:

means for obtaining, by the first mobile terminal, a second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, and a fourth bit;

means for determining, by the first mobile terminal, a starting symbol before the first number of symbols from a last symbol of the first subframe forward in response to obtaining the second field and in response to determining that there are four bits in the second field;

means for equally dividing, by the first mobile terminal, a symbol between the starting symbol and the last symbol of the first subframe into four symbol groups in response to determining the starting symbol before the first number of symbols from the last symbol of the first subframe onward;

means for determining, by the first mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to equally dividing a symbol between the starting symbol and the last symbol of the first subframe into four symbol groups;

means for determining, by the first mobile terminal, that data in a first symbol group of the four symbol groups is to be transmitted to the first mobile terminal if the first bit is 0;

means for determining, by the first mobile terminal, that a first symbol group of the four symbol groups is to be used for the second mobile terminal if the first bit is 1;

means for determining, by the first mobile terminal, that data in a second symbol group of the four symbol groups is to be transmitted to the first mobile terminal if the second bit is 0;

means for determining, by the first mobile terminal, that a second symbol group of the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

means for determining, by the first mobile terminal, that data in a third symbol group of the four symbol groups is to be transmitted to the first mobile terminal if the third bit is 0;

means for determining, by the first mobile terminal, that a third symbol group of the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

means for determining, by the first mobile terminal, that data in a fourth symbol group of the four symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0;

means for determining, by the first mobile terminal, that a fourth symbol group of the four symbol groups is to be used for the second mobile terminal if the fourth bit is 1.

means for monitoring, by a third mobile terminal, a fourth PDCCH message transmitted by the base station in the first subframe, wherein the fourth PDCCH message indicates to the third mobile terminal second PDSCH resources for transmitting data;

means for receiving, by a third mobile terminal, data in second PDSCH resources in a first subframe in response to monitoring for a fourth PDCCH message, wherein the second PDSCH resources occupy a third frequency band in the frequency domain and a first subset of symbols in the first subframe in the time domain, wherein the third frequency band at least partially overlaps the second frequency band;

means for transmitting, by the base station, a third PDCCH message to a third mobile terminal in a second subframe in response to transmitting the second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least a first field and a second field, and wherein the second subframe is a subframe immediately following the first subframe;

means for obtaining, by a third mobile terminal, a first field in response to receiving a third PDCCH message, wherein the first field indicates a first number of symbols;

means for obtaining, by a third mobile terminal, a second field in response to receiving a third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, and a fourth bit;

means for determining, by the third mobile terminal, a starting symbol before the first number of symbols from a last symbol of the first subframe forward in response to obtaining the second field and in response to determining that there are four bits in the second field;

means for equally dividing, by the third mobile terminal, a symbol between the starting symbol and the last symbol of the first subframe into four symbol groups in response to determining the starting symbol before the first number of symbols from the last symbol of the first subframe onward;

means for determining, by the third mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to equally dividing a symbol between the starting symbol and the last symbol of the first subframe into four symbol groups;

means for determining, by the third mobile terminal, that data in a first symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the first bit is 0;

means for determining, by the third mobile terminal, that a first symbol group of the four symbol groups is to be used for the second mobile terminal if the first bit is 1;

means for determining, by the third mobile terminal, that data in a second symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the second bit is 0;

means for determining, by the third mobile terminal, that a second symbol group of the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

means for determining, by the third mobile terminal, that data in a third symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the third bit is 0;

means for determining, by the third mobile terminal, that a third symbol group of the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

means for determining, by the third mobile terminal, that data in a fourth symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the fourth bit is 0;

means for determining, by the third mobile terminal, that a fourth symbol group of the four symbol groups is to be used for the second mobile terminal if the fourth bit is 1.

means for obtaining, by the first mobile terminal, a second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit;

means for determining, by the first mobile terminal, a starting symbol before the first number of symbols from a last symbol of the first subframe forward in response to obtaining the second field and in response to determining that there are six bits in the second field;

means for equally dividing, by the first mobile terminal, symbols between the starting symbol and the last symbol of the first subframe into six symbol groups in response to determining the starting symbol before the first number of symbols from the last symbol of the first subframe onward;

means for determining, by the first mobile terminal, whether a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit are 0 in response to equally dividing a symbol between the starting symbol and the last symbol of the first subframe into six symbol groups;

means for determining, by the first mobile terminal, that data in a first symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the first bit is 0;

means for determining, by the first mobile terminal, that a first symbol group of the six symbol groups is to be used for the second mobile terminal if the first bit is 1.

means for determining, by the first mobile terminal, that data in a second symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the second bit is 0;

means for determining, by the first mobile terminal, that a second symbol group of the six symbol groups is to be used for the second mobile terminal if the second bit is 1;

means for determining, by the first mobile terminal, that data in a third symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the third bit is 0;

means for determining, by the first mobile terminal, that a third symbol group of the six symbol groups is to be used for the second mobile terminal if the third bit is 1;

means for determining, by the first mobile terminal, that data in a fourth symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0;

means for determining, by the first mobile terminal, that a fourth symbol group of the six symbol groups is to be used for the second mobile terminal if the fourth bit is 1;

means for determining, by the first mobile terminal, that data in a fifth symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the fifth bit is 0;

means for determining, by the first mobile terminal, that a fifth symbol group of the six symbol groups is to be used for the second mobile terminal if the fifth bit is 1;

means for determining, by the first mobile terminal, that data in a sixth symbol group of the six symbol groups is to be transmitted to the first mobile terminal if the sixth bit is 0;

means for determining, by the first mobile terminal, that a sixth symbol group of the six symbol groups is to be used for the second mobile terminal if the sixth bit is 1.

Compared with the prior art, the invention has the following advantages that the prior art CN107210902B is a patent made by the general company for the 5G technology, and the patent introduces that the indication of the low-latency data is sent in an additional control channel or a subsequent control channel, so that the UE can not confuse the two data in decoding the non-low-latency data overlapped with the low-latency data, and the interference is not generated. Unfortunately, this patent only introduces the basic idea and does not introduce anything at all about how to specifically indicate which symbols are disturbed, which causes great difficulties for the skilled person to implement his solution. Aiming at the defect that the patent lacks a specific implementation mode, the application provides a method and a system for transmitting task key information based on 5G.

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: monitoring, by a first mobile terminal, a first PDCCH message sent by a base station in a first subframe, wherein the first PDCCH message indicates to the first mobile terminal first PDSCH resources for transmitting data;

step 102: receiving, by the first mobile terminal, data in first PDSCH resources in a first subframe in response to monitoring the first PDCCH message, wherein the first PDSCH resources occupy a first frequency band in the frequency domain and a first subset of symbols in the first subframe in the time domain;

step 103: receiving, by the second mobile terminal, the task key information;

step 104: sending a scheduling request to the base station by the second mobile terminal, wherein the scheduling request indicates to the base station that the second mobile terminal is to send task key information to the base station;

step 105: transmitting, by the base station to the second mobile terminal, a second PDCCH message in response to receiving the scheduling request, wherein the second PDCCH message indicates to the second mobile terminal a first PUSCH resource for transmitting uplink data;

step 106: transmitting, by the second mobile terminal, in response to receiving the second PDCCH message, the mission critical information to the base station in a first subframe, wherein the first PUSCH resource occupies a second frequency band in the frequency domain and a second subset of symbols in the first subframe in the time domain, wherein the first frequency band at least partially overlaps the second frequency band, the second subset of symbols being a subset of the first subset of symbols;

step 107: in response to transmitting the second PDCCH message to the second mobile terminal, transmitting, by the base station, a third PDCCH message to the first mobile terminal in a second subframe, wherein the third PDCCH message includes at least a first field and a second field, and wherein the second subframe is a subframe immediately following the first subframe;

step 108: obtaining, by the first mobile terminal, a first field in response to receiving the third PDCCH message, wherein the first field indicates a first number of symbols.

in response to transmitting the second PDCCH message to the second mobile terminal, transmitting, by the base station, a third PDCCH message to a third mobile terminal in a second subframe, wherein the third PDCCH message includes at least a first field and a second field, and wherein the second subframe is a subframe immediately following the first subframe; those skilled in the art will appreciate that the third PDCCH there is multicast to the first mobile terminal as well as to the third mobile terminal; in an embodiment, before the third PDCCH message is sent, the base station may send RRC signaling to the first mobile terminal and the third mobile terminal, respectively, where the RRC signaling includes URLLC-RNTI specifically for decoding the third PDCCH, and the generation manner of the URLLC-RNTI may be common knowledge in the art for generating other RNTIs, except that the URLLC-RNTI is specifically used for decoding the third PDCCH message;

means for receiving, by a second mobile terminal, mission critical information;

Prior art CN107210902B is a patent made by the general company for 5G technology, which describes sending an indication for low latency data in an additional control channel (e.g., control channel 312 in fig. 3 of the patent), or in a subsequent control channel (e.g., control channel 305-b in the second subframe of fig. 3 of the patent), so that the UE does not confuse the two data in decoding non-low latency data overlapped by low latency data, ensuring that no interference occurs. Unfortunately, this patent only introduces the basic idea and does not introduce anything at all about how to specifically indicate which symbols are disturbed, which causes great difficulties for the skilled person to implement his solution. It should be noted that, since my patent is an improvement on CN107210902B, the timing structure of my patent data transmission can refer to the timing structure of fig. 3 in the background art.

In one embodiment, a 5G slot may have 14 symbols, and then a 5G subframe may have 28 symbols, although due to the flexible number scheme, a 5G slot may be considered to have 28 symbols, 56 symbols, and so on. Assuming that a 5G slot has 14 symbols and a 5G subframe has 28 symbols according to the conventional numerical scheme, the last symbol of the first subframe of the present application is the symbol of symbol index 27 and the first symbol of the first subframe is the symbol of symbol index 0. Assuming that the first symbol number indicated by the first field is 12, a starting symbol before the first symbol number is determined from the last symbol of the first subframe onward, which is 12 symbols from the symbol of the first subframe with a symbol index of 27 onward, the starting symbol in this example is a symbol of the first subframe having a symbol index of 16, if the second field has a bit of "0100", the symbols with symbol index 16 of the first subframe to the symbols with symbol index 27 of the first subframe are divided into four equal parts, the first symbol group is the symbol group with index 16-18, the second symbol group is the symbol group with index 19-21, the third symbol group is the symbol group with index 22-24, the third symbol group is the symbol group with index 25-27, and because the second field has the bit "0100", so in this example the second symbol group (symbol group of indices 19-21) is used for the second mobile terminal to transmit mission critical data.

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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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. A5G-based method for transmitting mission-critical information, the 5G-based method for transmitting mission-critical information comprising the steps of:

monitoring, by a first mobile terminal, a first PDCCH message transmitted by a base station in a first subframe, wherein the first PDCCH message indicates to the first mobile terminal first PDSCH resources for transmitting data;

receiving, by a first mobile terminal, data in the first PDSCH resource in the first subframe in response to monitoring the first PDCCH message, wherein the first PDSCH resource occupies a first frequency band in a frequency domain and occupies a first subset of symbols in the first subframe in a time domain;

receiving, by the second mobile terminal, the task key information;

transmitting, by a second mobile terminal, a scheduling request to the base station, wherein the scheduling request indicates to the base station that the second mobile terminal is to transmit mission critical information to the base station;

transmitting, by a second mobile terminal, the mission-critical information to the base station in the first subframe in response to receiving the second PDCCH message, wherein a first PUSCH resource occupies a second frequency band in a frequency domain and a second subset of symbols in a first subframe in a time domain, wherein the first frequency band at least partially overlaps the second frequency band, the second subset of symbols being a subset of the first subset of symbols;

transmitting, by the base station, a third PDCCH message to the first mobile terminal in a second subframe in response to transmitting a second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least a first field and a second field, and wherein the second subframe is a subframe immediately following the first subframe;

obtaining, by a first mobile terminal, the first field in response to receiving the third PDCCH message, wherein the first field indicates a first number of symbols.

2. The 5G-based method for transmitting mission critical information according to claim 1, wherein the 5G-based method for transmitting mission critical information comprises the steps of:

obtaining, by a first mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, and a fourth bit;

equally dividing, by the first mobile terminal, a symbol between a starting symbol and a last symbol of the first subframe into four symbol groups in response to determining the starting symbol before the first number of symbols from the last symbol of the first subframe onwards;

determining, by the first mobile terminal, that data in a first symbol group of four symbol groups is to be transmitted to the first mobile terminal if the first bit is 0;

determining, by the first mobile terminal, that a first symbol group of four symbol groups is to be used for the second mobile terminal if the first bit is 1;

if the fourth bit is 1, determining, by the first mobile terminal, that a fourth symbol group of the four symbol groups is to be used for the second mobile terminal.

3. The 5G-based method for transmitting mission critical information according to claim 2, wherein the 5G-based method for transmitting mission critical information comprises the steps of:

monitoring, by a third mobile terminal, a fourth PDCCH message transmitted by a base station in a first subframe, wherein the fourth PDCCH message indicates to the third mobile terminal second PDSCH resources for transmitting data;

receiving, by a third mobile terminal, data in the second PDSCH resources in the first subframe in response to monitoring the fourth PDCCH message, wherein the second PDSCH resources occupy a third frequency band in a frequency domain and a first subset of symbols in a first subframe in a time domain, wherein the third frequency band at least partially overlaps with the second frequency band;

transmitting, by the base station, a third PDCCH message to the third mobile terminal in a second subframe in response to transmitting the second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least a first field and a second field, and wherein the second subframe is a subframe immediately following the first subframe;

obtaining, by a third mobile terminal, the first field in response to receiving the third PDCCH message, wherein the first field indicates a first number of symbols;

obtaining, by a third mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, and a fourth bit;

equally dividing, by a third mobile terminal, a symbol between a starting symbol and a last symbol of a first subframe into four symbol groups in response to determining the starting symbol before a first number of symbols from the last symbol of the first subframe onwards;

determining, by a third mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to equally dividing a symbol between the starting symbol and a last symbol of the first subframe into four symbol groups;

determining, by a third mobile terminal, if the first bit is 0, that data in a first symbol group of four symbol groups is to be transmitted to the third mobile terminal;

determining, by the third mobile terminal, that a first symbol group of four symbol groups is to be used for the second mobile terminal if the first bit is 1;

determining, by the third mobile terminal, if the second bit is 0, that data in a second symbol group of the four symbol groups is to be transmitted to the third mobile terminal;

determining, by the third mobile terminal, if the third bit is 0, that data in a third symbol group of the four symbol groups is to be transmitted to the third mobile terminal;

determining, by a third mobile terminal, that a third symbol group of the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

determining, by the third mobile terminal, if the fourth bit is 0, that data in a fourth symbol group of the four symbol groups is to be transmitted to the third mobile terminal;

if the fourth bit is 1, determining, by the third mobile terminal, that a fourth symbol group of the four symbol groups is to be used for the second mobile terminal.

4. The 5G-based method for transmitting mission critical information according to claim 3, wherein the 5G-based method for transmitting mission critical information comprises the steps of:

obtaining, by a first mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit;

equally dividing, by the first mobile terminal, a symbol between a starting symbol and a last symbol of the first subframe into six symbol groups in response to determining the starting symbol before the first number of symbols from the last symbol of the first subframe onwards;

determining, by the first mobile terminal, whether the first, second, third, fourth, fifth, and sixth bits are 0 in response to equally dividing the symbol between the starting symbol and the last symbol of the first subframe into six symbol groups;

if the first bit is 1, determining, by the first mobile terminal, that a first symbol group of the six symbol groups is to be used for the second mobile terminal.

5. The 5G-based method for transmitting mission critical information according to claim 4, wherein the 5G-based method for transmitting mission critical information comprises the steps of:

determining, by the first mobile terminal, if the second bit is 0, that data in a second symbol group of the six symbol groups is to be transmitted to the first mobile terminal;

determining, by the first mobile terminal, if the third bit is 0, that data in a third symbol group of the six symbol groups is to be transmitted to the first mobile terminal;

determining, by the first mobile terminal, if the fourth bit is 0, that data in a fourth symbol group of the six symbol groups is to be transmitted to the first mobile terminal;

determining, by the first mobile terminal, if the fifth bit is 0, that data in a fifth symbol group of the six symbol groups is to be transmitted to the first mobile terminal;

determining, by the first mobile terminal, if the sixth bit is 0, that data in a sixth symbol group of the six symbol groups is to be transmitted to the first mobile terminal;

if the sixth bit is 1, determining, by the first mobile terminal, that a sixth symbol group of the six symbol groups is to be used for the second mobile terminal.

6. A5G-based system for transmitting mission-critical information, the 5G-based system for transmitting mission-critical information comprising:

means for receiving, by a first mobile terminal, data in the first PDSCH resources in the first subframe in response to monitoring the first PDCCH message, wherein the first PDSCH resources occupy a first frequency band in a frequency domain and a first subset of symbols in the first subframe in a time domain;

means for receiving, by a second mobile terminal, mission critical information;

means for transmitting, by a second mobile terminal, a scheduling request to the base station, wherein the scheduling request indicates to the base station that the second mobile terminal is to transmit mission critical information to the base station;

means for transmitting, by a base station to the second mobile terminal, a second PDCCH message in response to receiving the scheduling request, wherein the second PDCCH message indicates to the second mobile terminal a first PUSCH resource for transmitting uplink data;

means for transmitting, by a second mobile terminal, the mission-critical information to the base station in the first subframe in response to receiving the second PDCCH message, wherein a first PUSCH resource occupies a second frequency band in a frequency domain and a second subset of symbols in a first subframe in a time domain, wherein the first frequency band at least partially overlaps the second frequency band, the second subset of symbols being a subset of the first subset of symbols;

means for transmitting, by a base station, a third PDCCH message to the first mobile terminal in a second subframe in response to transmitting a second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least a first field and a second field, wherein the second subframe is a subframe immediately following the first subframe;

means for obtaining, by a first mobile terminal, the first field in response to receiving the third PDCCH message, wherein the first field indicates a first number of symbols.

7. The 5G-based system for transmitting mission critical information according to claim 6, wherein the 5G-based system for transmitting mission critical information comprises:

means for obtaining, by a first mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, and a fourth bit;

means for determining, by the first mobile terminal, a starting symbol before a first number of symbols from a last symbol of a first subframe forward in response to obtaining the second field and in response to determining that there are four bits in the second field;

means for, in response to determining a starting symbol before a first number of symbols from a last symbol of a first subframe onward, equally dividing, by a first mobile terminal, symbols between the starting symbol and the last symbol of the first subframe into four symbol groups;

means for determining, by a first mobile terminal, whether the first, second, third, and fourth bits are 0 in response to equally dividing a symbol between the starting symbol and a last symbol of the first subframe into four symbol groups;

means for determining, by a first mobile terminal, that data in a first symbol group of four symbol groups is to be transmitted to the first mobile terminal if a first bit is 0;

8. The 5G-based system for transmitting mission critical information according to claim 7, wherein the 5G-based system for transmitting mission critical information comprises:

means for monitoring, by a third mobile terminal, a fourth PDCCH message transmitted by a base station in a first subframe, wherein the fourth PDCCH message indicates to the third mobile terminal second PDSCH resources for transmitting data;

means for receiving, by a third mobile terminal, data in the second PDSCH resources in the first subframe in response to monitoring the fourth PDCCH message, wherein the second PDSCH resources occupy a third frequency band in a frequency domain and a first subset of symbols in a first subframe in a time domain, wherein the third frequency band at least partially overlaps with the second frequency band;

means for transmitting, by a base station, a third PDCCH message to the third mobile terminal in a second subframe in response to transmitting a second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least a first field and a second field, wherein the second subframe is a subframe immediately following the first subframe;

means for obtaining, by a third mobile terminal, the first field in response to receiving the third PDCCH message, wherein the first field indicates a first number of symbols;

means for obtaining, by a third mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, and a fourth bit;

means for determining, by a third mobile terminal, a starting symbol before a first number of symbols from a last symbol of a first subframe forward in response to obtaining the second field and in response to determining that there are four bits in the second field;

means for, in response to determining a starting symbol before a first number of symbols from a last symbol of a first subframe onward, equally dividing, by a third mobile terminal, symbols between the starting symbol and the last symbol of the first subframe into four symbol groups;

means for determining, by a third mobile terminal, whether the first, second, third, and fourth bits are 0 in response to equally dividing a symbol between the starting symbol and a last symbol of the first subframe into four symbol groups;

means for determining, by a third mobile terminal, that data in a first symbol group of four symbol groups is to be transmitted to the third mobile terminal if the first bit is 0;

means for determining, by a third mobile terminal, that a first symbol group of four symbol groups is to be used for the second mobile terminal if a first bit is 1;

means for determining, by a third mobile terminal, that data in a second symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the second bit is 0;

means for determining, by a third mobile terminal, that a second symbol group of the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

means for determining, by a third mobile terminal, that data in a third symbol group of the four symbol groups is to be transmitted to the third mobile terminal if a third bit is 0;

means for determining, by a third mobile terminal, that a third symbol group of the four symbol groups is to be used for the second mobile terminal if a third bit is 1;

means for determining, by a third mobile terminal, that data in a fourth symbol group of the four symbol groups is to be transmitted to the third mobile terminal if the fourth bit is 0;

9. The 5G-based system for transmitting mission critical information according to claim 8, wherein the 5G-based system for transmitting mission critical information comprises:

means for obtaining, by a first mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field comprises a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit;

means for determining, by the first mobile terminal, a starting symbol before a first number of symbols from a last symbol of a first subframe forward in response to obtaining the second field and in response to determining that there are six bits in the second field;

means for equally dividing, by a first mobile terminal, symbols between a starting symbol and a last symbol of a first subframe into six symbol groups in response to determining the starting symbol before a first number of symbols from the last symbol of the first subframe onwards;

means for determining, by a first mobile terminal, whether the first, second, third, fourth, fifth, and sixth bits are 0 in response to equally dividing a symbol between the starting symbol and a last symbol of the first subframe into six symbol groups;

means for determining, by a first mobile terminal, that data in a first symbol group of six symbol groups is to be transmitted to the first mobile terminal if a first bit is 0;

10. The 5G-based system for transmitting mission critical information according to claim 9, wherein the 5G-based system for transmitting mission critical information comprises: