A 5G-based method and system for transmitting mission-critical information

Abstract

The present invention discloses a 5G-based method for transmitting mission-critical information, comprising the following steps: a first mobile terminal monitors a first PDCCH message sent by a base station in a first subframe, wherein the first PDCCH message indicates to the first mobile terminal a first PDSCH resource for sending data; in response to monitoring the first PDCCH message, the first mobile terminal receives data in the first PDSCH resource in the first subframe; a second mobile terminal receives mission-critical information; the second mobile terminal sends a scheduling request to the base station; in response to receiving the scheduling request, the base station sends a second PDCCH message to the second mobile terminal; in response to receiving the second PDCCH message, the second mobile terminal sends mission-critical information to the base station in the first subframe; in response to sending the second PDCCH message to the second mobile terminal, the base station sends a third PDCCH message to the first mobile terminal in the second subframe.

Description

Technical Field

[0001] The present invention relates to the field of 5G technology, and in particular to a 5G-based method and system for transmitting mission-critical information. Background Art

[0002] The fifth generation mobile communication technology (5G for short) is a new generation of broadband mobile communication technology with the characteristics of high speed, low latency and large connection. It is the network infrastructure for realizing the interconnection between people, machines and things.

[0003] Prior art CN107210902B discloses the following technology, whereby a receiving device can detect signals associated with low-latency transmissions and decode non-low-latency communications accordingly. The receiving device can receive an indicator from a transmitting device indicating where and when low-latency communications occur. The indication can specify the frequency resources or symbols used by low-latency communications. The indicator can 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 can use the indicator to mitigate low-latency interference, generate channel estimates, and reliably decode non-low-latency communications.

[0004] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a 5G-based method and system for transmitting mission-critical information, which can overcome the shortcomings of the prior art.

[0006] To achieve the above object, the present invention provides a method for transmitting mission-critical information based on 5G, characterized in that the method for transmitting mission-critical information based on 5G includes the following steps:

[0007] Monitoring, by the first mobile terminal, a first PDCCH message sent by the base station in a first subframe, wherein the first PDCCH message indicates to the first mobile terminal a first PDSCH resource for sending data;

[0008] In response to monitoring the first PDCCH message, the first mobile terminal receives data in a first PDSCH resource in a first subframe, wherein the first PDSCH resource occupies a first frequency band in the frequency domain and occupies a first symbol subset in the first subframe in the time domain;

[0009] Receiving mission-critical information by the second mobile terminal;

[0010] The second mobile terminal sends a scheduling request to the base station, wherein the scheduling request indicates to the base station that the second mobile terminal is to send mission-critical information to the base station;

[0011] In response to receiving the scheduling request, the base station sends a second PDCCH message to the second mobile terminal, wherein the second PDCCH message indicates to the second mobile terminal a first PUSCH resource for sending uplink data;

[0012] In response to receiving the second PDCCH message, the second mobile terminal sends 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 occupies a second symbol subset in the first subframe in the time domain, wherein the first frequency band at least partially overlaps with the second frequency band, and the second symbol subset is a subset of the first symbol subset;

[0013] In response to sending the second PDCCH message to the second mobile terminal, the base station sends a third PDCCH message to the first mobile terminal in a second subframe, wherein the third PDCCH message includes at least the first field and the second field, and wherein the second subframe is a subframe immediately following the first subframe;

[0014] In response to receiving the third PDCCH message, a first field is obtained by the first mobile terminal, wherein the first field indicates a first number of symbols.

[0015] In a preferred embodiment, the 5G-based method for transmitting mission-critical information includes the following steps:

[0016] In response to receiving the third PDCCH message, the first mobile terminal obtains a second field, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit;

[0017] In response to obtaining the second field and in response to determining that the second field has four bits, determining, by the first mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward;

[0018] In response to determining a start symbol before a first number of symbols from a last symbol of the first subframe, the first mobile terminal equally divides symbols between the start symbol and the last symbol of the first subframe into four symbol groups;

[0019] In response to equally dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups, the first mobile terminal determines whether the first bit, the second bit, the third bit, and the fourth bit are 0;

[0020] If the first bit is 0, the first mobile terminal determines that the data in the first symbol group of the four symbol groups is to be sent to the first mobile terminal;

[0021] If the first bit is 1, the first mobile terminal determines that the first symbol group of the four symbol groups is for the second mobile terminal;

[0022] If the second bit is 0, the first mobile terminal determines that the data in the second symbol group of the four symbol groups is to be sent to the first mobile terminal;

[0023] If the second bit is 1, the first mobile terminal determines that the second symbol group of the four symbol groups is for the second mobile terminal;

[0024] If the third bit is 0, the first mobile terminal determines that the data in the third symbol group of the four symbol groups is to be sent to the first mobile terminal;

[0025] If the third bit is 1, the first mobile terminal determines that the third symbol group of the four symbol groups is for the second mobile terminal;

[0026] If the fourth bit is 0, the first mobile terminal determines that the data in the fourth symbol group of the four symbol groups is to be sent to the first mobile terminal;

[0027] If the fourth bit is 1, the first mobile terminal determines that the fourth symbol group of the four symbol groups is for the second mobile terminal.

[0028] In a preferred embodiment, the method for transmitting mission-critical information based on 5G includes the following steps:

[0029] monitoring, by the 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;

[0030] In response to monitoring a fourth PDCCH message, receiving, by the third mobile terminal, data in a second PDSCH resource in a first subframe, wherein the second PDSCH resource occupies a third frequency band in the frequency domain and occupies a first symbol subset in the first subframe in the time domain, wherein the third frequency band at least partially overlaps with the second frequency band;

[0031] In response to sending the second PDCCH message to the second mobile terminal, the base station sends a third PDCCH message to the third mobile terminal in a second subframe, wherein the third PDCCH message includes at least the first field and the second field, and wherein the second subframe is a subframe immediately following the first subframe;

[0032] In response to receiving a third PDCCH message, obtaining, by a third mobile terminal, a first field, wherein the first field indicates a first number of symbols;

[0033] In response to receiving the third PDCCH message, the third mobile terminal obtains a second field, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit;

[0034] In response to obtaining the second field and in response to determining that the second field has four bits, determining, by the third mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward;

[0035] In response to determining a start symbol before a first number of symbols from the last symbol of the first subframe, the third mobile terminal equally divides the symbols between the start symbol and the last symbol of the first subframe into four symbol groups;

[0036] In response to equally dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups, the third mobile terminal determines whether the first bit, the second bit, the third bit, and the fourth bit are 0;

[0037] If the first bit is 0, the third mobile terminal determines that the data in the first symbol group of the four symbol groups is to be sent to the third mobile terminal;

[0038] If the first bit is 1, the third mobile terminal determines that the first symbol group of the four symbol groups is for the second mobile terminal;

[0039] If the second bit is 0, the third mobile terminal determines that the data in the second symbol group of the four symbol groups is to be sent to the third mobile terminal;

[0040] If the second bit is 1, the third mobile terminal determines that the second symbol group of the four symbol groups is for the second mobile terminal;

[0041] If the third bit is 0, the third mobile terminal determines that the data in the third symbol group of the four symbol groups is to be sent to the third mobile terminal;

[0042] If the third bit is 1, the third mobile terminal determines that the third symbol group of the four symbol groups is for the second mobile terminal;

[0043] If the fourth bit is 0, the third mobile terminal determines that the data in the fourth symbol group of the four symbol groups is to be sent to the third mobile terminal;

[0044] If the fourth bit is 1, the third mobile terminal determines that the fourth symbol group of the four symbol groups is for the second mobile terminal.

[0045] In a preferred embodiment, the 5G-based method for transmitting mission-critical information includes the following steps:

[0046] In response to receiving the third PDCCH message, the first mobile terminal obtains a second field, wherein the second field includes a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit;

[0047] In response to obtaining the second field and in response to determining that the second field has six bits, determining, by the first mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward;

[0048] In response to determining a start symbol before a first number of symbols from a last symbol of the first subframe, the first mobile terminal equally divides symbols between the start symbol and the last symbol of the first subframe into six symbol groups;

[0049] In response to equally dividing symbols between a start symbol and a last symbol of a first subframe into six symbol groups, the first mobile terminal determines whether a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit are 0;

[0050] If the first bit is 0, the first mobile terminal determines that the data in the first symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0051] If the first bit is one, it is determined by the first mobile terminal that the first symbol group of the six symbol groups is intended for the second mobile terminal.

[0052] In a preferred embodiment, the 5G-based method for transmitting mission-critical information includes the following steps:

[0053] If the second bit is 0, the first mobile terminal determines that the data in the second symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0054] If the second bit is 1, the first mobile terminal determines that the second symbol group of the six symbol groups is for the second mobile terminal;

[0055] If the third bit is 0, the first mobile terminal determines that the data in the third symbol group among the six symbol groups is to be sent to the first mobile terminal;

[0056] If the third bit is 1, the first mobile terminal determines that the third symbol group of the six symbol groups is for the second mobile terminal;

[0057] If the fourth bit is 0, the first mobile terminal determines that the data in the fourth symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0058] If the fourth bit is 1, the first mobile terminal determines that the fourth symbol group of the six symbol groups is for the second mobile terminal;

[0059] If the fifth bit is 0, the first mobile terminal determines that the data in the fifth symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0060] If the fifth bit is 1, the first mobile terminal determines that the fifth symbol group of the six symbol groups is for the second mobile terminal;

[0061] If the sixth bit is 0, the first mobile terminal determines that the data in the sixth symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0062] If the sixth bit is 1, the first mobile terminal determines that the sixth symbol group of the six symbol groups is for the second mobile terminal.

[0063] The present invention provides a 5G-based system for transmitting mission-critical information, characterized in that the 5G-based system for transmitting mission-critical information includes:

[0064] means for 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 a first PDSCH resource for transmitting data;

[0065] a unit configured to receive, by a first mobile terminal, data in a first PDSCH resource in a first subframe in response to monitoring a first PDCCH message, wherein the first PDSCH resource occupies a first frequency band in the frequency domain and occupies a first symbol subset in the first subframe in the time domain;

[0066] means for receiving mission-critical information by a second mobile terminal;

[0067] means for sending, by the 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 send mission-critical information to the base station;

[0068] means for sending, by the base station, a second PDCCH message to the second mobile terminal 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;

[0069] a unit configured to, in response to receiving a second PDCCH message, transmit, by the second mobile terminal, 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 occupies a second symbol subset in the first subframe in the time domain, wherein the first frequency band at least partially overlaps with the second frequency band, and the second symbol subset is a subset of the first symbol subset;

[0070] means for sending, by the base station, a third PDCCH message to the first mobile terminal in a second subframe in response to sending the second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least the first field and the second field, and wherein the second subframe is a subframe immediately following the first subframe;

[0071] Means are provided for obtaining, by the first mobile terminal, a first field in response to receiving a third PDCCH message, wherein the first field indicates a first number of symbols.

[0072] In a preferred embodiment, the 5G-based system for transmitting mission-critical information includes:

[0073] means for obtaining, by the first mobile terminal, a second field in response to receiving a third PDCCH message, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit;

[0074] means for determining, by the first mobile terminal, a starting symbol a first number of symbols ahead, starting from a last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has four bits;

[0075] means for dividing, by the first mobile terminal, symbols between the start symbol and the last symbol of the first subframe into four equal symbol groups in response to determining a start symbol before a first number of symbols starting from the last symbol of the first subframe;

[0076] a unit configured to determine, by the first mobile terminal, whether a first bit, a second bit, a third bit, and a fourth bit are 0 in response to dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups;

[0077] a unit for determining, by the first mobile terminal, that data in a first symbol group among the four symbol groups is to be transmitted to the first mobile terminal if the first bit is 0;

[0078] a unit for determining, by the first mobile terminal, that a first symbol group among four symbol groups is to be used for the second mobile terminal if the first bit is 1;

[0079] a unit for determining, by the first mobile terminal, that data in a second symbol group among the four symbol groups is to be transmitted to the first mobile terminal if the second bit is 0;

[0080] a unit for determining, by the first mobile terminal, that a second symbol group among the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

[0081] a unit for determining, by the first mobile terminal, that data in a third symbol group among the four symbol groups is to be transmitted to the first mobile terminal if the third bit is 0;

[0082] a unit for determining, by the first mobile terminal, that a third symbol group among the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

[0083] a unit for determining, by the first mobile terminal, that data in a fourth symbol group among the four symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0;

[0084] A unit for determining, by the first mobile terminal, that a fourth symbol group among the four symbol groups is to be used for the second mobile terminal if the fourth bit is 1.

[0085] In a preferred embodiment, the 5G-based system for transmitting mission-critical information includes:

[0086] means for 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 transmitting data;

[0087] means for receiving, by a third mobile terminal, data in a second PDSCH resource in a first subframe in response to monitoring 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 with the second frequency band;

[0088] means for sending, by the base station, a third PDCCH message to the third mobile terminal in a second subframe in response to sending the second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least the first field and the second field, and wherein the second subframe is a subframe immediately following the first subframe;

[0089] means for obtaining, by the third mobile terminal, a first field in response to receiving a third PDCCH message, wherein the first field indicates a first number of symbols;

[0090] means for obtaining, by the third mobile terminal, a second field in response to receiving a third PDCCH message, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit;

[0091] means for determining, by the third mobile terminal, a starting symbol a first number of symbols ahead, starting from a last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has four bits;

[0092] means for dividing, by the third mobile terminal, symbols between the start symbol and the last symbol of the first subframe into four equal symbol groups in response to determining a start symbol before a first number of symbols starting from the last symbol of the first subframe;

[0093] a unit configured to determine, by the third mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups;

[0094] a unit for determining, by the third mobile terminal, that data in a first symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the first bit is 0;

[0095] a unit for determining, by the third mobile terminal, that a first symbol group among the four symbol groups is to be used for the second mobile terminal if the first bit is 1;

[0096] a unit for determining, by the third mobile terminal, that data in a second symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the second bit is 0;

[0097] a unit for determining, by the third mobile terminal, that a second symbol group among the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

[0098] a unit for determining, by the third mobile terminal, that data in a third symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the third bit is 0;

[0099] a unit for determining, by the third mobile terminal, that a third symbol group among the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

[0100] a unit for determining, by the third mobile terminal, that data in a fourth symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the fourth bit is 0;

[0101] A unit for determining, by the third mobile terminal, that a fourth symbol group among the four symbol groups is to be used for the second mobile terminal if the fourth bit is 1.

[0102] In a preferred embodiment, the 5G-based system for transmitting mission-critical information includes:

[0103] means for obtaining, by the first mobile terminal, a second field in response to receiving a third PDCCH message, wherein the second field includes a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit;

[0104] means for determining, by the first mobile terminal, a starting symbol a first number of symbols ahead, starting from a last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has six bits;

[0105] means for dividing, by the first mobile terminal, symbols between the start symbol and the last symbol of the first subframe into six symbol groups in response to determining a start symbol before a first number of symbols starting from the last symbol of the first subframe;

[0106] a unit configured to determine, 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 dividing the symbols between the start symbol and the last symbol of the first subframe into six symbol groups;

[0107] means for determining, by the first mobile terminal, that data in a first symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the first bit is 0;

[0108] A unit for determining, by the first mobile terminal, that a first symbol group among six symbol groups is to be used for the second mobile terminal if the first bit is 1.

[0109] In a preferred embodiment, the 5G-based system for transmitting mission-critical information includes:

[0110] a unit for determining, by the first mobile terminal, that data in a second symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the second bit is 0;

[0111] a unit for determining, by the first mobile terminal, that a second symbol group among the six symbol groups is intended for the second mobile terminal if the second bit is 1;

[0112] a unit for determining, by the first mobile terminal, that data in a third symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the third bit is 0;

[0113] a unit for determining, by the first mobile terminal, that a third symbol group among the six symbol groups is to be used for the second mobile terminal if the third bit is 1;

[0114] a unit for determining, by the first mobile terminal, that data in a fourth symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0;

[0115] a unit for determining, by the first mobile terminal, that a fourth symbol group among the six symbol groups is intended for the second mobile terminal if the fourth bit is 1;

[0116] a unit for determining, by the first mobile terminal, that data in a fifth symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the fifth bit is 0;

[0117] for determining, by the first mobile terminal, that a fifth symbol group among the six symbol groups is a unit to be used for the second mobile terminal if the fifth bit is 1;

[0118] a unit for determining, by the first mobile terminal, that data in a sixth symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the sixth bit is 0;

[0119] If the sixth bit is 1, the first mobile terminal determines that the sixth symbol group among the six symbol groups is a unit to be used for the second mobile terminal.

[0120] Compared with the prior art, the present invention has the following advantages. The prior art CN107210902B is a patent made by Qualcomm for 5G technology. The patent introduces sending an indication of low-latency data in an additional control channel or in a subsequent control channel, so that when the UE decodes non-low-latency data that overlaps with low-latency data, it will not confuse the two data, ensuring that no interference occurs. Unfortunately, however, the patent only introduces the basic concept, and there is no introduction at all on how to specifically indicate which symbols are interfered with, which makes it difficult for those skilled in the art to implement its solution. In response to the deficiency of the patent in lacking a specific implementation method, the present application proposes a method and system for transmitting mission-critical information based on 5G. BRIEF DESCRIPTION OF THE DRAWINGS

[0121] Figure 1 FIG. 1 is a schematic diagram of a system structure according to an embodiment of the present invention.

[0122] Figure 2 is a flow chart of a method according to one embodiment of the present invention. DETAILED DESCRIPTION

[0123] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0124] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations such as "include" or "comprising", etc., will be understood to include the stated elements or components but not to exclude other elements or other components.

[0125] Figure 1 FIG. 1 is a schematic diagram of a system structure according to an embodiment of the present invention.

[0126] Figure 2 1 is a flow chart of a method according to an embodiment of the present invention. As shown in the figure, the method of the present invention includes the following steps:

[0127] Step 101: A first mobile terminal monitors a first PDCCH message sent by a base station in a first subframe, wherein the first PDCCH message indicates a first PDSCH resource for transmitting data to the first mobile terminal;

[0128] Step 102: In response to monitoring a first PDCCH message, the first mobile terminal receives data in a first PDSCH resource in a first subframe, wherein the first PDSCH resource occupies a first frequency band in the frequency domain and occupies a first symbol subset in the first subframe in the time domain;

[0129] Step 103: The second mobile terminal receives mission-critical information;

[0130] Step 104: The second mobile terminal sends a scheduling request to the base station, wherein the scheduling request indicates to the base station that the second mobile terminal is to send mission-critical information to the base station;

[0131] Step 105: In response to receiving the scheduling request, the base station sends a second PDCCH message to the second mobile terminal, wherein the second PDCCH message indicates to the second mobile terminal a first PUSCH resource for sending uplink data;

[0132] Step 106: In response to receiving the second PDCCH message, the second mobile terminal sends 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 occupies a second symbol subset in the first subframe in the time domain, wherein the first frequency band at least partially overlaps with the second frequency band, and the second symbol subset is a subset of the first symbol subset;

[0133] Step 107: In response to sending the second PDCCH message to the second mobile terminal, the base station sends a third PDCCH message to the first mobile terminal in a second subframe, wherein the third PDCCH message includes at least the first field and the second field, and the second subframe is a subframe immediately following the first subframe;

[0134] Step 108: In response to receiving the third PDCCH message, the first mobile terminal obtains a first field, where the first field indicates a first number of symbols.

[0135] In a preferred embodiment, the method for transmitting mission-critical information based on 5G includes the following steps:

[0136] In response to receiving the third PDCCH message, the first mobile terminal obtains a second field, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit;

[0137] In response to obtaining the second field and in response to determining that the second field has four bits, determining, by the first mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward;

[0138] In response to determining a start symbol before a first number of symbols from a last symbol of the first subframe, the first mobile terminal equally divides symbols between the start symbol and the last symbol of the first subframe into four symbol groups;

[0139] In response to equally dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups, the first mobile terminal determines whether the first bit, the second bit, the third bit, and the fourth bit are 0;

[0140] If the first bit is 0, the first mobile terminal determines that the data in the first symbol group of the four symbol groups is to be sent to the first mobile terminal;

[0141] If the first bit is 1, the first mobile terminal determines that the first symbol group of the four symbol groups is for the second mobile terminal;

[0142] If the second bit is 0, the first mobile terminal determines that the data in the second symbol group of the four symbol groups is to be sent to the first mobile terminal;

[0143] If the second bit is 1, the first mobile terminal determines that the second symbol group of the four symbol groups is for the second mobile terminal;

[0144] If the third bit is 0, the first mobile terminal determines that the data in the third symbol group of the four symbol groups is to be sent to the first mobile terminal;

[0145] If the third bit is 1, the first mobile terminal determines that the third symbol group of the four symbol groups is for the second mobile terminal;

[0146] If the fourth bit is 0, the first mobile terminal determines that the data in the fourth symbol group of the four symbol groups is to be sent to the first mobile terminal;

[0147] If the fourth bit is 1, the first mobile terminal determines that the fourth symbol group of the four symbol groups is for the second mobile terminal.

[0148] In a preferred embodiment, the method for transmitting mission-critical information based on 5G includes the following steps:

[0149] monitoring, by the 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;

[0150] In response to monitoring a fourth PDCCH message, receiving, by the third mobile terminal, data in a second PDSCH resource in a first subframe, wherein the second PDSCH resource occupies a third frequency band in the frequency domain and occupies a first symbol subset in the first subframe in the time domain, wherein the third frequency band at least partially overlaps with the second frequency band;

[0151] In response to sending the second PDCCH message to the second mobile terminal, the base station sends a third PDCCH message to the third mobile terminal in the second subframe, wherein the third PDCCH message includes at least the first field and the second field, wherein the second subframe is a subframe immediately following the first subframe; those skilled in the art should understand that the third PDCCH here is multicast to the first mobile terminal and the third mobile terminal; in one embodiment, before sending the third PDCCH message, the base station can send RRC signaling to the first mobile terminal and the third mobile terminal respectively, wherein the RRC signaling includes a URLLC-RNTI specifically used for decoding the third PDCCH, and the generation method of the URLLC-RNTI can be the common knowledge of generating other RNTIs in the art, except that the URLLC-RNTI is specifically used for decoding the third PDCCH message;

[0152] In response to receiving a third PDCCH message, obtaining, by a third mobile terminal, a first field, wherein the first field indicates a first number of symbols;

[0153] In response to receiving the third PDCCH message, the third mobile terminal obtains a second field, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit;

[0154] In response to obtaining the second field and in response to determining that the second field has four bits, determining, by the third mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward;

[0155] In response to determining a start symbol before a first number of symbols from the last symbol of the first subframe, the third mobile terminal equally divides the symbols between the start symbol and the last symbol of the first subframe into four symbol groups;

[0156] In response to equally dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups, the third mobile terminal determines whether the first bit, the second bit, the third bit, and the fourth bit are 0;

[0157] If the first bit is 0, the third mobile terminal determines that the data in the first symbol group of the four symbol groups is to be sent to the third mobile terminal;

[0158] If the first bit is 1, the third mobile terminal determines that the first symbol group of the four symbol groups is for the second mobile terminal;

[0159] If the second bit is 0, the third mobile terminal determines that the data in the second symbol group of the four symbol groups is to be sent to the third mobile terminal;

[0160] If the second bit is 1, the third mobile terminal determines that the second symbol group of the four symbol groups is for the second mobile terminal;

[0161] If the third bit is 0, the third mobile terminal determines that the data in the third symbol group of the four symbol groups is to be sent to the third mobile terminal;

[0162] If the third bit is 1, the third mobile terminal determines that the third symbol group of the four symbol groups is for the second mobile terminal;

[0163] If the fourth bit is 0, the third mobile terminal determines that the data in the fourth symbol group of the four symbol groups is to be sent to the third mobile terminal;

[0164] If the fourth bit is 1, the third mobile terminal determines that the fourth symbol group of the four symbol groups is for the second mobile terminal.

[0165] In a preferred embodiment, the method for transmitting mission-critical information based on 5G includes the following steps:

[0166] In response to receiving the third PDCCH message, the first mobile terminal obtains a second field, wherein the second field includes a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit;

[0167] In response to obtaining the second field and in response to determining that the second field has six bits, determining, by the first mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward;

[0168] In response to determining a start symbol before a first number of symbols from a last symbol of the first subframe, the first mobile terminal equally divides symbols between the start symbol and the last symbol of the first subframe into six symbol groups;

[0169] In response to equally dividing symbols between a start symbol and a last symbol of a first subframe into six symbol groups, the first mobile terminal determines whether a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit are 0;

[0170] If the first bit is 0, the first mobile terminal determines that the data in the first symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0171] If the first bit is one, it is determined by the first mobile terminal that the first symbol group of the six symbol groups is intended for the second mobile terminal.

[0172] In a preferred embodiment, the 5G-based method for transmitting mission-critical information includes the following steps:

[0173] If the second bit is 0, the first mobile terminal determines that the data in the second symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0174] If the second bit is 1, the first mobile terminal determines that the second symbol group of the six symbol groups is for the second mobile terminal;

[0175] If the third bit is 0, the first mobile terminal determines that the data in the third symbol group among the six symbol groups is to be sent to the first mobile terminal;

[0176] If the third bit is 1, the first mobile terminal determines that the third symbol group of the six symbol groups is for the second mobile terminal;

[0177] If the fourth bit is 0, the first mobile terminal determines that the data in the fourth symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0178] If the fourth bit is 1, the first mobile terminal determines that the fourth symbol group of the six symbol groups is for the second mobile terminal;

[0179] If the fifth bit is 0, the first mobile terminal determines that the data in the fifth symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0180] If the fifth bit is 1, the first mobile terminal determines that the fifth symbol group of the six symbol groups is for the second mobile terminal;

[0181] If the sixth bit is 0, the first mobile terminal determines that the data in the sixth symbol group of the six symbol groups is to be sent to the first mobile terminal;

[0182] If the sixth bit is 1, the first mobile terminal determines that the sixth symbol group of the six symbol groups is for the second mobile terminal.

[0183] The present invention provides a 5G-based system for transmitting mission-critical information, characterized in that the 5G-based system for transmitting mission-critical information includes:

[0184] means for 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 a first PDSCH resource for transmitting data;

[0185] a unit configured to receive, by a first mobile terminal, data in a first PDSCH resource in a first subframe in response to monitoring a first PDCCH message, wherein the first PDSCH resource occupies a first frequency band in the frequency domain and occupies a first symbol subset in the first subframe in the time domain;

[0186] means for receiving mission-critical information by a second mobile terminal;

[0187] means for sending, by the 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 send mission-critical information to the base station;

[0188] means for sending, by the base station, a second PDCCH message to the second mobile terminal 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;

[0189] a unit configured to, in response to receiving a second PDCCH message, transmit, by the second mobile terminal, 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 occupies a second symbol subset in the first subframe in the time domain, wherein the first frequency band at least partially overlaps with the second frequency band, and the second symbol subset is a subset of the first symbol subset;

[0190] means for sending, by the base station, a third PDCCH message to the first mobile terminal in a second subframe in response to sending the second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least the first field and the second field, and wherein the second subframe is a subframe immediately following the first subframe;

[0191] Means are provided for obtaining, by the first mobile terminal, a first field in response to receiving a third PDCCH message, wherein the first field indicates a first number of symbols.

[0192] In a preferred embodiment, the 5G-based system for transmitting mission-critical information includes:

[0193] means for obtaining, by the first mobile terminal, a second field in response to receiving a third PDCCH message, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit;

[0194] means for determining, by the first mobile terminal, a starting symbol a first number of symbols ahead, starting from a last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has four bits;

[0195] means for dividing, by the first mobile terminal, symbols between the start symbol and the last symbol of the first subframe into four equal symbol groups in response to determining a start symbol before a first number of symbols starting from the last symbol of the first subframe;

[0196] a unit configured to determine, by the first mobile terminal, whether a first bit, a second bit, a third bit, and a fourth bit are 0 in response to dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups;

[0197] a unit 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;

[0198] a unit for determining, by the first mobile terminal, that a first symbol group among four symbol groups is to be used for the second mobile terminal if the first bit is 1;

[0199] a unit for determining, by the first mobile terminal, that data in a second symbol group among the four symbol groups is to be transmitted to the first mobile terminal if the second bit is 0;

[0200] a unit for determining, by the first mobile terminal, that a second symbol group among the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

[0201] a unit for determining, by the first mobile terminal, that data in a third symbol group among the four symbol groups is to be transmitted to the first mobile terminal if the third bit is 0;

[0202] a unit for determining, by the first mobile terminal, that a third symbol group among the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

[0203] a unit for determining, by the first mobile terminal, that data in a fourth symbol group among the four symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0;

[0204] A unit for determining, by the first mobile terminal, that a fourth symbol group among the four symbol groups is to be used for the second mobile terminal if the fourth bit is 1.

[0205] In a preferred embodiment, the 5G-based system for transmitting mission-critical information includes:

[0206] means for 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 transmitting data;

[0207] means for receiving, by a third mobile terminal, data in a second PDSCH resource in a first subframe in response to monitoring 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 with the second frequency band;

[0208] means for sending, by the base station, a third PDCCH message to the third mobile terminal in a second subframe in response to sending the second PDCCH message to the second mobile terminal, wherein the third PDCCH message includes at least the first field and the second field, and wherein the second subframe is a subframe immediately following the first subframe;

[0209] means for obtaining, by the third mobile terminal, a first field in response to receiving a third PDCCH message, wherein the first field indicates a first number of symbols;

[0210] means for obtaining, by the third mobile terminal, a second field in response to receiving a third PDCCH message, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit;

[0211] means for determining, by the third mobile terminal, a starting symbol a first number of symbols ahead, starting from a last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has four bits;

[0212] means for dividing, by the third mobile terminal, symbols between the start symbol and the last symbol of the first subframe into four equal symbol groups in response to determining a start symbol before a first number of symbols starting from the last symbol of the first subframe;

[0213] a unit configured to determine, by the third mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups;

[0214] a unit for determining, by the third mobile terminal, that data in a first symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the first bit is 0;

[0215] a unit for determining, by the third mobile terminal, that a first symbol group among the four symbol groups is to be used for the second mobile terminal if the first bit is 1;

[0216] a unit for determining, by the third mobile terminal, that data in a second symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the second bit is 0;

[0217] a unit for determining, by the third mobile terminal, that a second symbol group among the four symbol groups is to be used for the second mobile terminal if the second bit is 1;

[0218] a unit for determining, by the third mobile terminal, that data in a third symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the third bit is 0;

[0219] a unit for determining, by the third mobile terminal, that a third symbol group among the four symbol groups is to be used for the second mobile terminal if the third bit is 1;

[0220] a unit for determining, by the third mobile terminal, that data in a fourth symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the fourth bit is 0;

[0221] A unit for determining, by the third mobile terminal, that a fourth symbol group among the four symbol groups is to be used for the second mobile terminal if the fourth bit is 1.

[0222] In a preferred embodiment, the 5G-based system for transmitting mission-critical information includes:

[0223] means for obtaining, by the first mobile terminal, a second field in response to receiving a third PDCCH message, wherein the second field includes a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit;

[0224] means for determining, by the first mobile terminal, a starting symbol a first number of symbols ahead, starting from a last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has six bits;

[0225] means for dividing, by the first mobile terminal, symbols between the start symbol and the last symbol of the first subframe into six symbol groups in response to determining a start symbol before a first number of symbols starting from the last symbol of the first subframe;

[0226] a unit configured to determine, 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 dividing the symbols between the start symbol and the last symbol of the first subframe into six symbol groups;

[0227] means for determining, by the first mobile terminal, that data in a first symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the first bit is 0;

[0228] A unit for determining, by the first mobile terminal, that a first symbol group among six symbol groups is to be used for the second mobile terminal if the first bit is 1.

[0229] In a preferred embodiment, the 5G-based system for transmitting mission-critical information includes:

[0230] a unit for determining, by the first mobile terminal, that data in a second symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the second bit is 0;

[0231] a unit for determining, by the first mobile terminal, that a second symbol group among the six symbol groups is intended for the second mobile terminal if the second bit is 1;

[0232] a unit for determining, by the first mobile terminal, that data in a third symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the third bit is 0;

[0233] a unit for determining, by the first mobile terminal, that a third symbol group among the six symbol groups is to be used for the second mobile terminal if the third bit is 1;

[0234] a unit for determining, by the first mobile terminal, that data in a fourth symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0;

[0235] a unit for determining, by the first mobile terminal, that a fourth symbol group among the six symbol groups is intended for the second mobile terminal if the fourth bit is 1;

[0236] a unit for determining, by the first mobile terminal, that data in a fifth symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the fifth bit is 0;

[0237] for determining, by the first mobile terminal, that a fifth symbol group among the six symbol groups is a unit to be used for the second mobile terminal if the fifth bit is 1;

[0238] a unit for determining, by the first mobile terminal, that data in a sixth symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the sixth bit is 0;

[0239] If the sixth bit is 1, the first mobile terminal determines that the sixth symbol group among the six symbol groups is a unit to be used for the second mobile terminal.

[0240] The prior art CN107210902B is a patent made by Qualcomm for 5G technology. The patent introduces sending an indication of low-latency data in an additional control channel (such as the control channel 312 in Figure 3 of the patent) or in a subsequent control channel (such as the control channel 305-b in the second subframe of Figure 3 of the patent). In this way, when the UE decodes non-low-latency data that overlaps with low-latency data, it will not confuse the two types of data, ensuring that no interference occurs. Unfortunately, however, the patent only introduces the basic concept, and there is no introduction at all on how to specifically indicate which symbols are interfered with, which makes it difficult for those skilled in the art to implement its solution. It should be pointed out that since our patent is an improvement on CN107210902B, the timing structure of data transmission in our patent can refer to the timing structure of Figure 3 of the background technology.

[0241] In one embodiment, a 5G timeslot may have 14 symbols, and a 5G subframe may have 28 symbols. Of course, due to the flexible digital scheme, it can be considered that a 5G timeslot may have 28 symbols, 56 symbols, etc. Assuming that according to the conventional digital scheme, a 5G timeslot has 14 symbols and a 5G subframe has 28 symbols, then the last symbol of the first subframe of this application is the symbol with symbol index 27, and the first symbol of the first subframe is the symbol with symbol index 0. Assuming that the first symbol number indicated by the first field is 12, the starting symbol before the first symbol number is determined from the last symbol of the first subframe, which is 12 symbols counted forward from the symbol with symbol index 27 of the first subframe. In this example, the starting symbol is the symbol with symbol index 16 of the first subframe. If the second field has bits "0100", the symbol with symbol index 16 of the first subframe to the symbol with symbol index 27 of the first subframe are divided into four equal parts. The first symbol group is the symbol group with indexes 16-18, the second symbol group is the symbol group with indexes 19-21, the third symbol group is the symbol group with indexes 22-24, and the third symbol group is the symbol group with indexes 25-27. Because the second field has bits "0100", in this example, the second symbol group (the symbol group with indexes 19-21) is used to send mission-critical data to the second mobile terminal.

[0242] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0243] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0244] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0245] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0246] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A method for transmitting mission-critical information based on 5G, characterized in that: The 5G-based method for transmitting mission-critical information includes 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 a first PDSCH resource for sending data; In response to monitoring the first PDCCH message, the first mobile terminal receives data in the first PDSCH resource in the first subframe, wherein the first PDSCH resource occupies a first frequency band in the frequency domain and occupies a first symbol subset in the first subframe in the time domain; Receiving mission-critical information by the second mobile terminal; The second mobile terminal sends a scheduling request to the base station, wherein the scheduling request indicates to the base station that the second mobile terminal is to send mission-critical information to the base station; In response to receiving the scheduling request, the base station sends a second PDCCH message to the second mobile terminal, wherein the second PDCCH message indicates to the second mobile terminal a first PUSCH resource for sending uplink data; In response to receiving the second PDCCH message, the second mobile terminal sends the mission-critical information to the base station in the first subframe, wherein the first PUSCH resource occupies a second frequency band in the frequency domain and occupies a second symbol subset in the first subframe in the time domain, wherein the first frequency band at least partially overlaps with the second frequency band, and the second symbol subset is a subset of the first symbol subset; In response to sending a second PDCCH message to the second mobile terminal, the base station sends 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; In response to receiving the third PDCCH message, the first field is obtained by the first mobile terminal, wherein the first field indicates a first number of symbols.

2. The method for transmitting mission-critical information based on 5G according to claim 1, characterized in that The 5G-based method for transmitting mission-critical information includes the following steps: In response to receiving the third PDCCH message, the first mobile terminal obtains the second field, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit; In response to obtaining the second field and in response to determining that the second field has four bits, determining, by the first mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward; In response to determining a start symbol before a first number of symbols from a last symbol of a first subframe, the first mobile terminal equally divides symbols between the start symbol and the last symbol of the first subframe into four symbol groups; In response to equally dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups, the first mobile terminal determines whether the first bit, the second bit, the third bit, and the fourth bit are 0; If the first bit is 0, the first mobile terminal determines that data in a first symbol group of the four symbol groups is to be sent to the first mobile terminal; If the first bit is 1, the first mobile terminal determines that the first symbol group of the four symbol groups is for the second mobile terminal; If the second bit is 0, the first mobile terminal determines that the data in the second symbol group of the four symbol groups is to be sent to the first mobile terminal; If the second bit is 1, the first mobile terminal determines that the second symbol group of the four symbol groups is for the second mobile terminal; If the third bit is 0, the first mobile terminal determines that the data in the third symbol group of the four symbol groups is to be sent to the first mobile terminal; If the third bit is 1, the first mobile terminal determines that the third symbol group of the four symbol groups is for the second mobile terminal; If the fourth bit is 0, the first mobile terminal determines that the data in the fourth symbol group of the four symbol groups is to be sent to the first mobile terminal; If the fourth bit is 1, the first mobile terminal determines that the fourth symbol group of the four symbol groups is for the second mobile terminal.

3. The method for transmitting mission-critical information based on 5G according to claim 2, characterized in that: The 5G-based method for transmitting mission-critical information includes the following steps: 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; In response to monitoring the fourth PDCCH message, receiving, by the third mobile terminal, data in the second PDSCH resource in the first subframe, wherein the second PDSCH resource occupies a third frequency band in the frequency domain and occupies a first symbol subset in the first subframe in the time domain, wherein the third frequency band at least partially overlaps with the second frequency band; In response to sending a second PDCCH message to the second mobile terminal, the base station sends a third PDCCH message to the 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; In response to receiving the third PDCCH message, obtaining, by a third mobile terminal, the first field, wherein the first field indicates a first number of symbols; In response to receiving the third PDCCH message, obtaining, by the third mobile terminal, the second field, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit; In response to obtaining the second field and in response to determining that the second field has four bits, determining, by the third mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward; In response to determining a start symbol before a first number of symbols from a last symbol of a first subframe, the third mobile terminal equally divides symbols between the start symbol and the last symbol of the first subframe into four symbol groups; In response to equally dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups, the third mobile terminal determines whether the first bit, the second bit, the third bit, and the fourth bit are 0; If the first bit is 0, the third mobile terminal determines that the data in the first symbol group of the four symbol groups is to be sent to the third mobile terminal; If the first bit is 1, the third mobile terminal determines that the first symbol group of the four symbol groups is for the second mobile terminal; If the second bit is 0, the third mobile terminal determines that the data in the second symbol group of the four symbol groups is to be sent to the third mobile terminal; If the second bit is 1, the third mobile terminal determines that the second symbol group of the four symbol groups is for the second mobile terminal; If the third bit is 0, the third mobile terminal determines that the data in the third symbol group of the four symbol groups is to be sent to the third mobile terminal; If the third bit is 1, the third mobile terminal determines that the third symbol group of the four symbol groups is for the second mobile terminal; If the fourth bit is 0, the third mobile terminal determines that the data in the fourth symbol group of the four symbol groups is to be sent to the third mobile terminal; If the fourth bit is 1, the third mobile terminal determines that the fourth symbol group of the four symbol groups is for the second mobile terminal.

4. The method for transmitting mission-critical information based on 5G according to claim 3, wherein: The 5G-based method for transmitting mission-critical information includes the following steps: In response to receiving the third PDCCH message, the first mobile terminal obtains the second field, wherein the second field includes a first bit, a second bit, a third bit, a fourth bit, a fifth bit, and a sixth bit; In response to obtaining the second field and in response to determining that the second field has six bits, determining, by the first mobile terminal, a starting symbol that is a first number of symbols ahead, starting from the last symbol of the first subframe and onward; In response to determining a start symbol before a first number of symbols from a last symbol of a first subframe, the first mobile terminal equally divides symbols between the start symbol and the last symbol of the first subframe into six symbol groups; In response to equally dividing symbols between the start symbol and the last symbol of the first subframe into six symbol groups, the first mobile terminal determines whether the first bit, the second bit, the third bit, the fourth bit, the fifth bit, and the sixth bit are 0; If the first bit is 0, the first mobile terminal determines that data in a first symbol group of the six symbol groups is to be sent to the first mobile terminal; If the first bit is 1, it is determined by the first mobile terminal that the first symbol group of the six symbol groups is for the second mobile terminal.

5. The method for transmitting mission-critical information based on 5G according to claim 4, wherein: The 5G-based method for transmitting mission-critical information includes the following steps: If the second bit is 0, the first mobile terminal determines that the data in the second symbol group of the six symbol groups is to be sent to the first mobile terminal; If the second bit is 1, the first mobile terminal determines that the second symbol group of the six symbol groups is for the second mobile terminal; If the third bit is 0, the first mobile terminal determines that the data in the third symbol group among the six symbol groups is to be sent to the first mobile terminal; If the third bit is 1, the first mobile terminal determines that the third symbol group among the six symbol groups is for the second mobile terminal; If the fourth bit is 0, the first mobile terminal determines that the data in the fourth symbol group of the six symbol groups is to be sent to the first mobile terminal; If the fourth bit is 1, the first mobile terminal determines that the fourth symbol group of the six symbol groups is for the second mobile terminal; If the fifth bit is 0, the first mobile terminal determines that the data in the fifth symbol group of the six symbol groups is to be sent to the first mobile terminal; If the fifth bit is 1, the first mobile terminal determines that the fifth symbol group of the six symbol groups is for the second mobile terminal; If the sixth bit is 0, the first mobile terminal determines that the data in the sixth symbol group of the six symbol groups is to be sent to the first mobile terminal; If the sixth bit is 1, the first mobile terminal determines that the sixth symbol group of the six symbol groups is for the second mobile terminal.

6. A 5G-based system for transmitting mission-critical information, characterized in that: The 5G-based system for transmitting mission-critical information includes: means for 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 a first PDSCH resource for transmitting data; a unit configured to receive, by the 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 the frequency domain and occupies a first symbol subset in the first subframe in the time domain; means for receiving mission-critical information by a second mobile terminal; means for sending, 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 send mission-critical information to the base station; means for sending, by the base station, a second PDCCH message to the second mobile terminal 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; a unit configured to, in response to receiving the second PDCCH message, transmit, by the second mobile terminal, the mission-critical information to the base station in the first subframe, wherein the first PUSCH resource occupies a second frequency band in the frequency domain and occupies a second symbol subset in the first subframe in the time domain, wherein the first frequency band at least partially overlaps with the second frequency band, and the second symbol subset is a subset of the first symbol subset; a unit configured to, in response to sending a second PDCCH message to the second mobile terminal, send, 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; Means for obtaining, by the 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 includes: means for obtaining, by the first mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit; means for determining, by the first mobile terminal, a starting symbol a first number of symbols ahead, starting from a last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has four bits; means for, in response to determining a start symbol before a first number of symbols starting from a last symbol of a first subframe, dividing, by the first mobile terminal, symbols between the start symbol and the last symbol of the first subframe into four equal symbol groups; a unit configured to determine, by the first mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups; a unit 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; a unit for determining, by the first mobile terminal, that a first symbol group among four symbol groups is to be used for the second mobile terminal if the first bit is 1; a unit for determining, by the first mobile terminal, that data in a second symbol group among the four symbol groups is to be sent to the first mobile terminal if the second bit is 0; a unit for determining, by the first mobile terminal, that a second symbol group among the four symbol groups is to be used for the second mobile terminal if the second bit is 1; a unit for determining, by the first mobile terminal, that data in a third symbol group among the four symbol groups is to be transmitted to the first mobile terminal if the third bit is 0; a unit for determining, by the first mobile terminal, that a third symbol group among the four symbol groups is to be used for the second mobile terminal if the third bit is 1; a unit for determining, by the first mobile terminal, that data in a fourth symbol group among the four symbol groups is to be sent to the first mobile terminal if the fourth bit is 0; A unit for determining, by the first mobile terminal, that a fourth symbol group among the four symbol groups is to be used for the second mobile terminal if the fourth bit is 1.

8. The 5G-based system for transmitting mission-critical information according to claim 7, wherein: The 5G-based system for transmitting mission-critical information includes: means for 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 transmitting data; means for receiving, by a third mobile terminal, data in the second PDSCH resource in the first subframe in response to monitoring the 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 with the second frequency band; a unit configured to, in response to sending a second PDCCH message to the second mobile terminal, send, by the base station, a third PDCCH message to the 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; 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; a unit configured to obtain, by a third mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field includes a first bit, a second bit, a third bit, and a fourth bit; means for determining, by the third mobile terminal, a starting symbol a first number of symbols ahead, starting from the last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has four bits; means for, in response to determining a start symbol before a first number of symbols starting from a last symbol of a first subframe, dividing, by a third mobile terminal, symbols between the start symbol and the last symbol of the first subframe into four equal symbol groups; a unit configured to determine, by a third mobile terminal, whether the first bit, the second bit, the third bit, and the fourth bit are 0 in response to dividing the symbols between the start symbol and the last symbol of the first subframe into four symbol groups; a unit for determining, by the third mobile terminal, that data in a first symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the first bit is 0; a unit for determining, by the third mobile terminal, that a first symbol group among four symbol groups is to be used for the second mobile terminal if the first bit is 1; a unit for determining, by the third mobile terminal, that data in a second symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the second bit is 0; a unit for determining, by the third mobile terminal, that a second symbol group among the four symbol groups is to be used for the second mobile terminal if the second bit is 1; a unit for determining, by the third mobile terminal, that data in a third symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the third bit is 0; a unit for determining, by the third mobile terminal, that a third symbol group among the four symbol groups is to be used for the second mobile terminal if the third bit is 1; a unit for determining, by the third mobile terminal, that data in a fourth symbol group among the four symbol groups is to be transmitted to the third mobile terminal if the fourth bit is 0; A unit for determining, by the third mobile terminal, that a fourth symbol group among the four symbol groups is to be used for the second mobile terminal if the fourth bit is 1.

9. The 5G-based system for transmitting mission-critical information according to claim 8, wherein: The 5G-based system for transmitting mission-critical information includes: means for obtaining, by the first mobile terminal, the second field in response to receiving the third PDCCH message, wherein the second field includes 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 a first number of symbols ahead, starting from a last symbol of the first subframe and onward, in response to obtaining the second field and in response to determining that the second field has six bits; means for, in response to determining a start symbol before a first number of symbols starting from a last symbol of a first subframe, dividing, by the first mobile terminal, symbols between the start symbol and the last symbol of the first subframe into six equal symbol groups; a unit configured to determine, 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 dividing the symbols between the start 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; A unit for determining, by the first mobile terminal, that a first symbol group among six symbol groups is to be used for the second mobile terminal if the first bit is 1.

10. The 5G-based system for transmitting mission-critical information according to claim 9, wherein: The 5G-based system for transmitting mission-critical information includes: a unit for determining, by the first mobile terminal, that data in a second symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the second bit is 0; a unit for determining, by the first mobile terminal, that a second symbol group among the six symbol groups is to be used for the second mobile terminal if the second bit is 1; a unit for determining, by the first mobile terminal, that data in a third symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the third bit is 0; a unit for determining, by the first mobile terminal, that a third symbol group among the six symbol groups is to be used for the second mobile terminal if the third bit is 1; a unit for determining, by the first mobile terminal, that data in a fourth symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the fourth bit is 0; a unit for determining, by the first mobile terminal, that a fourth symbol group among the six symbol groups is to be used for the second mobile terminal if the fourth bit is 1; a unit for determining, by the first mobile terminal, that data in a fifth symbol group among the six symbol groups is to be transmitted to the first mobile terminal if the fifth bit is 0; a unit for determining, by the first mobile terminal, that a fifth symbol group among the six symbol groups is to be used for the second mobile terminal if the fifth bit is 1; a unit for determining, by the first mobile terminal, that data in a sixth symbol group among 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, the first mobile terminal determines that the sixth symbol group among the six symbol groups is a unit to be used for the second mobile terminal.

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