WO2018137590A1

WO2018137590A1 - Channel resource sharing method, mobile communication terminal and network equipment

Info

Publication number: WO2018137590A1
Application number: PCT/CN2018/073711
Authority: WO
Inventors: 孙立新; 丁颖哲; 周明宇; 王力
Original assignee: 北京佰才邦技术有限公司
Priority date: 2017-01-26
Filing date: 2018-01-23
Publication date: 2018-08-02
Also published as: CN108366431A; CN108366431B

Abstract

The disclosure provides a channel resource sharing method, a mobile communication terminal and network equipment. The method comprises: upon a mobile communication terminal performing a successful listen-before-talk (LBT) process, determining, according to an LBT parameter, a corresponding maximum channel occupation time (MCOT); and performing, in the MCOT, autonomous uplink transmission carrying uplink control information, wherein the uplink control information is used to instruct network equipment to perform the autonomous uplink transmission of the mobile communication terminal and to perform downlink transmission in the MCOT after the autonomous uplink transmission is completed.

Description

Channel resource sharing method, mobile communication terminal, and network side device

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201710057492.1, filed Jan.

Technical field

The present disclosure relates to the field of communications, and in particular, to a channel resource sharing method, a mobile communication terminal, and a network side device.

Background technique

It is well known that an uplink transmission scheme using a base station for centralized scheduling in a wireless communication system requires multiple Listening Before Talk (LBT). In response to this defect, an uplink transmission scheme for autonomous scheduling using a mobile communication terminal (UE), that is, AUL (Autonomous UpLink) or GUL (Grant-less UpLink) is proposed in MulteFire (MF). Since the uplink transmission scheme allows the UE to initiate uplink transmission autonomously, the delay and the number of LBTs are reduced.

In the transmission scheme based on the base station scheduling, after the channel access of the Cat-4LBT (the channel access procedure including the physical downlink shared channel (PDSCH) transmission defined in 3GPP TS36.213) is successfully performed by the base station, the corresponding MCOT is performed. (The maximum channel occupancy duration), the evolved Node B (eNB) transmits the downlink signal and schedules the UE to transmit the uplink signal. For uplink transmission of terminal autonomous scheduling, the UE may adopt Cat-4LBT (type 1 uplink channel access procedure defined in 3GPP TS36.213) and after successfully contending for the channel, the UE may obtain current channel access parameters (channel connection) The MCOT (the maximum channel occupation duration) corresponding to the priority) can perform the uplink transmission of the UE's autonomous scheduling within the MCOT. In order to meet all uplink transmission requirements, the length of the MCOT is usually configured longer. When the time requirement for uplink transmission is small, this will result in waste of channel resources.

Summary of the invention

Embodiments of the present disclosure provide a channel resource sharing method, a mobile communication terminal, and a network side device.

In a first aspect, an embodiment of the present disclosure provides a channel resource sharing method, which is applied to a mobile communication terminal, and includes: after the mobile communication terminal performs a first listening and then sends an LBT successfully, determining a corresponding parameter according to parameters of the LBT, and the like. a maximum channel occupancy duration MCOT; performing autonomous scheduling uplink transmission in the MCOT, the autonomous scheduling uplink transmission carrying uplink control information, where the uplink control information is used to instruct the network side device to perform the autonomous scheduling uplink of the mobile communication terminal Transmitting and instructing the network side device to perform downlink transmission in the MCOT after performing the autonomous scheduled uplink transmission.

In a second aspect, the embodiment of the present disclosure further provides a channel resource sharing method, which is applied to a network side device, and includes: performing, by the mobile communication terminal, after the LBT is successfully sent after the first listening, the maximum channel occupation time MCOT is initiated. Autonomously scheduling uplink transmission, the MCOT is a channel occupation duration determined according to parameters of the LBT, and the autonomously scheduled uplink transmission carries uplink control information; and performing the autonomous scheduling uplink transmission according to the uplink control information. After completion, downlink transmission is performed within the MCOT.

In a third aspect, an embodiment of the present disclosure further provides a mobile communication terminal, including: a processor, a memory, a network interface, and a data bus, wherein the data bus is used to connect the processor, the memory, and the network interface. The memory is for storing program code, and the processor is configured to call the program code stored in the memory to perform the method described in the first aspect above.

In a fourth aspect, an embodiment of the present disclosure further provides a network side device, including: a processor, a memory, a network interface, and a data bus, where the data bus is used to connect the processor, the memory, and the network interface. The memory is for storing program code, and the processor is configured to call the program code stored in the memory to execute the method described in the second aspect above.

In a fifth aspect, an embodiment of the present disclosure provides a mobile communication terminal, including: a determining module, configured to determine, according to parameters of an LBT, a corresponding maximum channel occupation duration MCOT after the mobile communication terminal performs the first listening and then sends the LBT successfully. And a transmission module, configured to perform autonomous scheduling uplink transmission in the MCOT, where the autonomously scheduled uplink transmission carries uplink control information, where the uplink control information is used to instruct the network side device to perform autonomous scheduling of the mobile communication terminal. Uplink transmission and instructing the network side device to perform downlink transmission in the MCOT after performing the autonomously scheduled uplink transmission.

According to a sixth aspect, an embodiment of the present disclosure provides a network side device, including: an execution module, configured to perform an autonomous scheduling uplink transmission initiated by a mobile communication terminal after a successful listening and post-issuing LBT, in a maximum channel occupation duration MCOT, The MCOT is a channel occupation time length determined according to the parameter of the LBT, the autonomously scheduled uplink transmission carries uplink control information, and the initiating module is configured to execute the autonomously scheduled uplink transmission according to the indication of the uplink control information. After completion, downlink transmission is performed within the MCOT. .

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings to be used in the description of the embodiments of the present disclosure will be briefly described below. Obviously, the drawings in the following description are only some of the embodiments of the present disclosure, and those skilled in the art can obtain other drawings according to the drawings without any inventive labor.

FIG. 1 is a flowchart of a channel resource sharing method according to an embodiment of the present disclosure;

2 is a flowchart of a channel resource sharing method according to an embodiment of the present disclosure;

FIG. 3 is a schematic flowchart of resource transmission in a channel resource sharing method according to an embodiment of the present disclosure;

4 is a schematic flowchart of resource transmission in a channel resource sharing method according to an embodiment of the present disclosure;

FIG. 5 is a flowchart of a channel resource sharing method according to an embodiment of the present disclosure;

FIG. 6 is a flowchart of a channel resource sharing method according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a mobile communication terminal according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of a mobile communication terminal according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. It is apparent that the described embodiments are a part of the embodiments of the present disclosure, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

In an embodiment of the present disclosure, a mobile communication terminal (UE) may be a mobile phone (or mobile phone), or other device capable of transmitting or receiving wireless signals, including a user equipment (terminal), a personal digital assistant (PDA), a wireless modem, Wireless communication device, handheld device, laptop computer, cordless telephone, wireless local loop (WLL) station, CPE (Customer Premise Equipment) capable of converting mobile signals into wireless fidelity (WiFi) signals, or mobile intelligence Hotspots, smart appliances, or other devices that can communicate spontaneously with mobile communication networks without human intervention.

In an embodiment of the present disclosure, the network side device may be a base station. It can be understood that the form of the base station is not limited, and may be a Macro Base Station, a Pico Base Station, a Node B (Node B (referred to as a 3G mobile base station)), or an Enhanced Base Station (ENB). The home enhanced base station (Femto eNB or Home eNode B or Home eNB or HNEB), the relay station, the access point, the RRU (Remote Radio Unit), the RRH (Remote Radio Head), and the like.

Referring to FIG. 1, FIG. 1 is a flowchart of a channel resource sharing method according to an embodiment of the present disclosure. As shown in FIG. 1, the channel resource sharing method is applied to a mobile communication terminal, and includes the following steps 101-102.

In step 101, the mobile communication terminal determines the corresponding maximum channel occupancy time MCOT (Max Channel Occupy Time) according to the parameters of the LBT after the LBT (Listen Before Talk) is successfully performed. For example, the MCOT is determined according to the channel access priority, whether there is an interval, and the high layer signaling indicates whether there is another technology absenceOfAnyOtherTechnology-r14.

The channel resource sharing method provided by the embodiment of the present disclosure is mainly used in a mobile communication system, and is used for sharing resources within a channel occupation time obtained by autonomous scheduling of a mobile communication terminal, so as to improve utilization of channel resources.

Specifically, when the mobile communication terminal needs to initiate the autonomously scheduled uplink transmission, the type 1 uplink access procedure (ie, Cat-4LBT) may be adopted first, and the channel access priority is configured. After the LBT is successful, the mobile communication terminal can obtain the corresponding MCOT. The specific MCOT size may be determined by the high layer signaling whether there are other access technologies, whether there is a time interval of 100 microseconds or more, and the channel access priority is determined jointly. In this embodiment, the channel access priority is a parameter for determining the MCOT, which may be configured in advance by a protocol, or configured by the mobile communication terminal, or configured by the network side device, and is not further limited herein. . The duration of the above MCOT can be set according to actual needs. For example, in this embodiment, the MCOT may be 2 milliseconds (ms), 3 ms, 6 ms, 8 ms, or 10 ms. The autonomously scheduled uplink transmission may be AUL (Autonomous UpLink) or GUL (Grant-less UpLink). The following description uses GUL as an example.

Step 102: Perform autonomous scheduling uplink transmission in the MCOT, where the autonomously scheduled uplink transmission carries uplink control information, where the uplink control information is used to instruct the network side device to perform the autonomous scheduling uplink transmission of the mobile communication terminal and the indication. The network side device performs downlink transmission in the MCOT after performing the autonomous scheduled uplink transmission.

In this step, the transmission duration of the autonomously scheduled uplink transmission may be set according to actual needs. Specifically, the transmission duration of the autonomously scheduled uplink transmission is less than the MCOT, for example, the MCOT may be 6 ms, and the autonomously scheduled uplink transmission is 2 ms. That is, in this embodiment, the uplink control information may indicate that the network side device performs downlink transmission on the time-frequency resource of the third to sixth ms, and the receiving end corresponding to the downlink transmission may be the mobile communication that initiates the autonomously scheduled uplink transmission. The terminal may also be another mobile communication terminal, which is not further limited herein.

In this embodiment, when the time reaches the start time corresponding to the MCOT, the mobile communication terminal sends an autonomously scheduled uplink transmission to transmit uplink data and uplink control information. The network side device may first receive uplink data and uplink control information according to the uplink control information, and then perform downlink transmission after the uplink transmission is completed.

It should be understood that the setting of the start time of the downlink transmission may be set according to actual needs, and is not further limited herein. For example, the time when the downlink transmission starts may be agreed by a prior agreement, or the broadcast notification may be performed by the network side device. The indication may be made by the mobile communication terminal, or a joint indication of at least two of the foregoing.

Thus, in the embodiment of the present disclosure, after the mobile communication terminal performs the first listening and the LBT is successful, the mobile communication terminal determines the corresponding maximum channel occupation time MCOT according to the parameters of the LBT, and performs autonomous scheduling uplink transmission in the MCOT. The autonomously scheduled uplink transmission carries the uplink control information, where the uplink control information is used to indicate that the network side device performs the autonomous scheduling uplink transmission of the mobile communication terminal, and indicates that the network side device is in the execution of the autonomously scheduled uplink transmission. The downlink transmission is performed within the MCOT. In the MCOT obtained by the autonomous scheduling uplink transmission of the mobile communication terminal, the downlink transmission of the network side device can be performed in the remaining time after the uplink transmission is performed, thereby realizing the channel resource sharing in the MCOT and improving the utilization of the channel resource. .

It should be understood that when the uplink transmission is converted to the downlink transmission, the network side device needs to perform LBT again, so it is necessary to set the time interval between the uplink transmission and the downlink transmission. This time interval can be set according to actual needs. For example, in this embodiment, the start time of the downlink transmission may be indicated by using the uplink control information to indicate. Specifically, referring to FIG. 2, the uplink control information used to indicate that the network side device performs downlink transmission in the MCOT after performing the autonomously scheduled uplink transmission includes: instructing the network side device to perform autonomous scheduling uplink in the MCOT. The first interval configuration information of the interval between the transmission completion and the downlink transmission.

In this embodiment, the first interval configuration information includes at least one of (i) and (ii): (i) a time-frequency location indicating that the network side device starts downlink transmission in the MCOT; and Ii) Puncture is indicated at the last symbol of the last subframe of the autonomously scheduled uplink transmission.

Specifically, the time-frequency position indicating that the network-side device starts the downlink transmission may be set according to actual needs, for example, the approximate location may be indicated, and then the start time of starting the downlink transmission is determined according to the preset transmission rule, and the downlink transmission may also be indicated. Start sub-frame position. This is described in detail below.

For example, in the above embodiment, the MCOT may be 6 ms. The indication of the starting subframe position of the downlink transmission may be as follows. Indicates that the autonomously scheduled uplink transmission is 2 ms, and the last subframe can end at the penultimate symbol, and the time domain location of the network side device is 3 ms to 6 ms (ie, the remaining MCOT is occupied), and the subframe starts at the 3 ms. The boundary sends a downlink transmission.

In addition, the time interval configuration of the uplink transmission and the downlink transmission may be performed by using the cell-specific timing advance cell-specific TA. That is, in the embodiment, performing the autonomous scheduling uplink transmission in the MCOT includes: performing a cell-specific timing advance cell-specific TA and the MCOT carried in the system broadcast message of the network side device, and controlling to start the autonomous scheduling uplink The lead time of the transfer. Since the mobile communication terminal can be controlled to send the autonomously scheduled uplink transmission in advance, so that there is a time interval between the uplink transmission and the downlink transmission, the network side device performs the LBT.

That is, the interval between the uplink transmission and the downlink transmission may be performed by puncture at the last symbol of the last subframe of the autonomously scheduled uplink transmission, cell-specific timing advancement cell-specific TA, and second One or more combinations of the manner in which the time slot starts the downlink transmission subframe or the like is implemented.

It should be noted that, when the network side device performs the LBT for downlink transmission, it is required to determine at least one of the LBT type and the channel access priority, and the specific implementation manner may be multiple. For example, it may be determined by the network side device itself, or may be determined based on the relevant standard protocol, and may also be indicated by using the above control information. When the uplink control information is used to perform the indication, the uplink control information is further used to indicate the type of the LBT and the channel access priority corresponding to the LBT in which the network side device performs downlink transmission in the MCOT. At least one of them.

Further, the content of the uplink control information may be set according to actual needs. For example, in this embodiment, the uplink control information may include a Cell Radio Network Temporary Identifier (C-RNTI), a size of the MCOT, a length of the autonomously scheduled uplink transmission, and a location of the initial subframe. At least one of the second interval configuration information between adjacent subframes, where the second interval configuration information includes the first interval configuration information.

Optionally, the content that the network side device performs downlink transmission in the MCOT includes at least one of downlink control information and downlink data.

Specifically, in this embodiment, the downlink control information may include: a C-RNTI scrambled PDCCH (Physical Downlink Control Channel) or an EPDCCH (Enhanced Physical Downlink Control Channel). The transmission acknowledges the characters ACK/NACK, CSI (Channel State Information) feedback, and schedules uplink and downlink transmissions. The downlink control information may further include a CC-RNTI scrambled PDCCH for broadcasting uplink transmission information. The downlink control information may further include: a PDSCH (Physical Downlink Shared Channel) for data transmission/system message.

As shown in FIG. 3, the Cat-4LBT is first performed by the mobile communication terminal, and then the mobile communication terminal that initiates the autonomously scheduled uplink transmission performs autonomously scheduled uplink transmission (which may be GUL) to pass the PUSCH (Physical Uplink Shared Channel). ) transmitting uplink control information and uplink transmission data. After the autonomously scheduled uplink transmission is completed, the network side device transmits a downlink transmission (DL (Down Link)) transmitted through the PDSCH, and transmits the downlink control information PDCCH and the C-PDCCH in the downlink transmission process.

Further, after the downlink transmission is completed, the mobile communication terminal or other mobile communication terminal that initiates the autonomously scheduling uplink transmission may be triggered to perform uplink transmission in the MCOT, so as to further improve the utilization of channel resources in the MCOT. That is to say, in the downlink transmission, in addition to the C-RNTI scrambled downlink (PDCCH) corresponding to the mobile communication terminal that initiates the autonomously scheduling the uplink transmission, other RNTI scrambled PDCCHs, EPDDCH, PDSCH, etc., such as CC-RNTI, may be transmitted. The scrambled PDCCH is the C-PDCCH. In this embodiment, the downlink control information may be used to indicate that the mobile communication terminal triggers at least one of an uplink transmission and a scheduled uplink transmission in the MCOT.

Specifically, as shown in FIG. 4, for example, the network side device may indicate the triggered uplink transmission Scheduled UL (SUL) through the C-PDCCH (CC-RNTI scrambled PDCCH) (ie, the trigger A is sent in the UL grant, the trigger B Sent in C-PDCCH).

Optionally, referring to FIG. 5, after the step 102 of transmitting uplink control information in the MCOT, the method further includes step 103.

Step 103: Acquire downlink control information that is sent by the network side device based on the autonomously scheduled uplink transmission feedback.

In this step, for each mobile communication terminal, the network side device feeds back the downlink control information such as the transmission acknowledgement characters ACK/NACK and CSI (Channel State Information) of the autonomously scheduled uplink transmission. The feedback mode for transmitting confirmation characters can be set according to actual needs.

For example, in an example, the downlink control information is further used to feed back a transmission confirmation character corresponding to a hybrid automatic repeat request (HARQ) process of the physical uplink shared channel PUSCH transmission in each subframe.

In another example, the downlink control information is further used to feed back all the transmission confirmation characters of the hybrid automatic repeat request HARQ process to be fed back in the physical uplink shared channel PUSCH transmission of the preset number of subframes before the current subframe. In this example, the downlink control information may be transmitted in a PDCCH or an EPDCCH, and the subframe position where the downlink control information is located may be determined by using a standard (for example, a PDCCH or an EPDCCH in the Nth or last downlink subframe according to the read C-PDCCH). The downlink control information is sent, where N is a positive integer) or indicated by uplink control information.

Referring to FIG. 6, FIG. 6 is a flowchart of a channel resource sharing method according to an embodiment of the present disclosure. As shown in FIG. 6, the channel resource sharing method is applied to a network side device, and includes the following steps 601-602.

Step 601: Perform autonomous scheduling uplink transmission initiated by the mobile communication terminal in the maximum channel occupation duration MCOT after performing the LBT success, and the MCOT is the channel occupation duration determined according to the parameter of the LBT, the autonomous The scheduled uplink transmission carries uplink control information.

The channel resource sharing method provided by the embodiment of the present disclosure is mainly applied to a mobile communication system, and is used for sharing resources of a channel occupied by a mobile communication terminal for autonomously scheduling uplink transmission, so as to improve utilization of channel resources.

Specifically, when the mobile communication terminal needs to initiate the autonomously scheduled uplink transmission, the type 1 uplink access procedure (ie, Cat-4LBT) may be adopted first, and the priority of the channel access is configured; after the LBT succeeds, the corresponding MCOT may be obtained. The specific MCOT size may be determined by the high layer signaling whether there are other access technologies, whether there is an interval of 100 us or more, and the channel access priority is determined jointly. In this embodiment, the channel access priority is a parameter for determining the MCOT, which may be configured by using a protocol in advance, or configured by the mobile communication terminal, or configured by the network side device, and is not further limited herein. . The duration of the MCOT may be set according to actual needs. For example, in this embodiment, the MCOT may be 2 ms, 3 ms, 6 ms, 8 ms, or 10 ms. The autonomously scheduled uplink transmission may be AUL (Autonomous UpLink) or GUL (Grant-less UpLink). The following description uses GUL as an example.

Step 602: Perform downlink transmission in the MCOT after performing the autonomously scheduled uplink transmission according to the uplink control information.

In this embodiment, when the time reaches the start time corresponding to the MCOT, the mobile communication terminal sends an autonomously scheduled uplink transmission to transmit corresponding uplink data and uplink control information, and the network side device may perform an indication according to the uplink control information. First, the uplink data is received, and then the downlink transmission is performed after the uplink transmission is completed.

In this embodiment, in the embodiment of the present disclosure, the network side device performs autonomous scheduling uplink transmission initiated by the mobile communication terminal in the maximum channel occupation duration MCOT after the first listening to the LBT is successful, and the MCOT is a parameter according to the LBT. The autonomously scheduled uplink transmission carries the uplink control information, and the downlink transmission is performed in the MCOT after the performing the autonomously scheduled uplink transmission is completed according to the uplink control information. After the uplink transmission is performed in the mobile communication terminal in the MCOT obtained by the autonomous scheduling uplink transmission of the mobile communication terminal, the downlink transmission of the network side device can be performed in the remaining time, thereby realizing sharing of channel resources in the MCOT and improving the channel. Utilization of resources.

It should be understood that when the uplink transmission is converted to the downlink transmission, the LBT needs to be re-executed by the network side device, so the time interval between the uplink transmission and the downlink transmission needs to be set. The setting of this time interval can be set according to actual needs. For example, in this embodiment, the start time of the downlink transmission may be indicated by using the foregoing control information to indicate. Specifically, the uplink control information is used to indicate that the network side device performs the first interval configuration information of the autonomously scheduled uplink transmission completion and the downlink transmission interval time in the MCOT.

In this embodiment, the first interval configuration information includes at least one of (i) and (ii): (i) a time-frequency location indicating that the network side device starts downlink transmission in the MCOT; and Ii) puncturing at the last symbol of the last subframe of the autonomously scheduled uplink transmission.

Specifically, the manner of indicating the time domain location of the downlink transmission may be set according to actual needs, for example, an approximate location may be indicated, and then the start time of starting the downlink transmission may be determined according to the preset transmission rule, and the start of the downlink transmission may also be indicated. Subframe position. That is, the time-frequency position indicating that the network-side device starts downlink transmission in the MCOT includes the starting subframe position indicating the downlink transmission. This is described in detail below.

For example, in the above embodiment, the MCOT may be 6 ms. The indication of the starting subframe position of the downlink transmission may adopt the following indication manner. Indicates that the autonomously scheduled uplink transmission is 2 ms, and the last subframe can end at the penultimate symbol, and the time domain location of the network side device is 3 ms to 6 ms (ie, the remaining MCOT is occupied) and the subframe boundary starts at the 3 ms. Send a downlink transmission.

In addition, the time interval configuration of the uplink transmission and the downlink transmission may be performed by using the cell-specific timing advance cell-specific TA. That is, in the embodiment, the performing the autonomous scheduling uplink transmission in the MCOT includes: performing a cell-specific timing advance cell-specific TA and the MCOT carried in a system broadcast message of the network side device, and the control starts to autonomously The advance time of the uplink transmission is scheduled. Since the mobile communication terminal can be controlled to send the autonomously scheduled uplink transmission in advance, so that there is a time interval between the uplink transmission and the downlink transmission, the network side device performs the LBT.

That is, the time interval between the uplink transmission and the downlink transmission may be punctured by the last symbol of the last subframe of the autonomously scheduled uplink transmission, the cell-level timing advance amount cell-specific TA, and the second One or more combinations of the manner in which the slot is started, the downlink transmission subframe, and the like are implemented.

It should be noted that, when the network side device performs the LBT for downlink transmission, it is also required to determine at least one of the LBT type and the channel access priority, and the specific implementation manner may be multiple. For example, it may be determined internally by the network side device, or may be determined based on a standard protocol, and may also be indicated by using the above control information. When the uplink control information is used for the indication, the uplink control information is further used to indicate that at least one of the LBT type and the channel access priority corresponding to the downlink transmission by the network side device in the MCOT. One.

Further, the content of the uplink control information may be set according to actual needs. For example, in this embodiment, the uplink control information includes a Cell Radio Network Temporary Identifier (C-RNTI), a size of the MCOT, a length of autonomously scheduled uplink transmission, and a start subframe position and At least one of the second interval configuration information between adjacent subframes, where the second interval configuration information includes the first interval configuration information.

Specifically, in this embodiment, the downlink control information may include a C-RNTI scrambled PDCCH (Physical Downlink Control Channel) or an EPDCCH (Enhanced Physical Downlink Control Channel). The transmission acknowledgement character ACK/NACK, CSI (Channel State Information) feedback, and scheduling uplink and downlink transmissions, etc.; the downlink control information may further include a CC-RNTI scrambled PDCCH for broadcasting uplink transmission information, and the downlink control information. It may also include a PDSCH (Physical Downlink Shared Channel) for data transmission/system messages and the like.

As shown in FIG. 3, the Cat-4LBT is first performed by the mobile communication terminal, and then the mobile communication terminal that initiates the autonomously scheduled uplink transmission performs autonomously scheduled uplink transmission (which may be GUL) to pass the PUSCH (Physical Uplink Shared Channel). ) transmitting uplink control information and uplink transmission data. After the autonomous scheduling uplink transmission is completed, the network side device transmits a downlink transmission (DL Down Link) transmitted through the PDSCH, and transmits downlink control information PDCCH and C-PDCCH in the downlink transmission process.

Further, after the downlink transmission is completed, the mobile communication terminal or other mobile communication terminal that initiates the autonomously scheduling uplink transmission may be triggered to perform uplink transmission in the MCOT, so as to further improve the utilization of channel resources in the MCOT. That is to say, in the downlink transmission, in addition to the C-RNTI scrambled downlink (PDCCH) corresponding to the mobile communication terminal that initiates the autonomously scheduling the uplink transmission, other RNTI scrambled PDCCHs, EPDDCH, PDSCH, etc., such as CC-, may be transmitted. The PDCCH that is scrambled by the RNTI is the C-PDCCH. In this embodiment, the downlink control information may be used to indicate that the mobile communication terminal triggers at least one of an uplink transmission and a scheduled uplink transmission in the MCOT.

Specifically, as shown in FIG. 4, for example, the network side device may indicate that the uplink transmission is scheduled by the C-PDCCH (CC-RNTI scrambled PDCCH), that is, the trigger A is transmitted in the UL grant, and the trigger B is in the C-PDCCH. Sent in).

For each mobile communication terminal, the network side device feeds back the downlink control information of the transmission acknowledgement characters ACK/NACK and CSI of the autonomously scheduled uplink transmission. The feedback mode for transmitting confirmation characters can be set according to actual needs.

In another example, the downlink control information is further used to feed back all transmission confirmation characters corresponding to the hybrid automatic repeat request HARQ process of the physical uplink shared channel PUSCH transmission to be fed back on the preset number of subframes before the current subframe. . In this embodiment, the downlink control information may be transmitted in a PDCCH or an EPDCCH, and the subframe position where the downlink control information is located may be determined by a standard (for example, a PDCCH or an EPDCCH in the Nth or last downlink subframe according to the read C-PDCCH). The downlink control information is sent, where N is a positive integer).

As shown in FIG. 7, the present disclosure also provides a mobile communication terminal 10. The mobile communication terminal 10 includes a processor 11, a memory 12, a network interface 13, and a data bus 14. The data bus 14 is used to connect the processor 11, the memory 12 and the network interface 13, and the memory 12 is used to store program codes. The processor 11 is configured to invoke the program code stored in the memory 12 to perform the following operations: after the mobile communication terminal 10 performs the first listening and the LBT is successful, the corresponding maximum channel occupation time MCOT is determined according to the parameters of the LBT; The autonomously scheduled uplink transmission is performed in the MCOT, and the autonomously scheduled uplink transmission carries the uplink control information, where the uplink control information is used to instruct the network side device to perform the autonomous scheduling uplink transmission of the mobile communication terminal and to indicate that the network side device is executing. After the autonomous scheduling uplink transmission is completed, downlink transmission is performed in the MCOT.

Optionally, the uplink control information includes: first interval configuration information that indicates an interval between the network side device performing the autonomous scheduling uplink transmission completion and the downlink transmission in the MCOT.

Optionally, the first interval configuration information includes at least one of (i) and (ii): (i) a time-frequency location indicating that the network side device starts downlink transmission in the MCOT; and (ii) Indicates that puncturing is performed at the last symbol of the last subframe of the autonomously scheduled uplink transmission.

Optionally, the time-frequency location indicating that the network side device starts downlink transmission in the MCOT includes a starting subframe position indicating a downlink transmission.

Optionally, the indicating a starting subframe position of the downlink transmission includes indicating that the downlink transmission starts in a second slot of the downlink transmission subframe.

Optionally, the uplink control information includes a cell radio network temporary identifier C-RNTI, a size of the MCOT, a length of autonomously scheduled uplink transmission, a starting subframe position, and a second interval between adjacent subframes. At least one of the configuration information, the second interval configuration information including the first interval configuration information.

Optionally, the processor 11 is configured to control, according to the cell-level timing advance cell-specific TA and the MCOT carried in the system broadcast message of the network side device, to control an advance time for starting the autonomous uplink transmission.

Optionally, the downlink control information is used to instruct the mobile communication terminal 10 to perform at least one of (i) triggering an uplink transmission and (ii) scheduling an uplink transmission within the MCOT.

Optionally, the processor 11 is further configured to obtain downlink control information that is sent by the network side device based on the autonomously scheduled uplink transmission feedback.

Optionally, the downlink control information is further used to feed back a transmission confirmation character corresponding to the hybrid automatic repeat request (HARQ) process of the physical uplink shared channel PUSCH transmission in each subframe; or the downlink control information is further used to: Transmitting, on the preset number of subframes before the current subframe, all transmission acknowledgement characters corresponding to the hybrid automatic repeat request HARQ process of the physical uplink shared channel PUSCH transmission to be fed back.

Optionally, the uplink control information is further used to indicate at least one of a type of the LBT and a channel access priority corresponding to the downlink transmission by the network side device in the MCOT.

In the embodiment of the present disclosure, after performing the LBT success, the mobile communication terminal determines the corresponding maximum channel occupation time MCOT according to the LBT parameter; performs autonomous scheduling uplink transmission in the MCOT, and the autonomous scheduling uplink transmission carries The uplink control information is used to indicate that the network side device performs the autonomous scheduling uplink transmission of the mobile communication terminal, and indicates that the network side device performs downlink transmission in the MCOT after performing the autonomous scheduled uplink transmission. In the MCOT obtained by the autonomous scheduling uplink transmission of the mobile communication terminal, after the uplink transmission is performed, the downlink transmission of the network side device can be performed in the remaining time, thereby realizing the sharing of the channel resources in the MCOT and improving the utilization of the channel resources. rate.

As shown in FIG. 8, the present disclosure also provides a network side device 20. The network side device 20 includes a processor 21, a memory 22, a network interface 23, and a data bus 24. The data bus 24 is used to connect the processor 21, the memory 22 and the network interface 23, and the memory 22 is used to store program codes. The processor 21 is configured to invoke the program code stored by the memory 22 to perform an operation of performing autonomous scheduling uplink transmission initiated by the mobile communication terminal to perform the first listening after the LBT is successfully performed, and the MCOT is initiated within the maximum channel occupation duration MCOT. The autonomously scheduled uplink transmission carries uplink control information according to the channel occupation duration determined according to the parameter of the LBT; and according to the indication of the uplink control information, after performing the autonomous scheduling uplink transmission, in the MCOT Downstream transmission is performed within.

Optionally, the uplink control information includes first interval configuration information used to indicate an interval between the autonomous scheduling of the uplink transmission and the downlink transmission performed by the network side device 20 in the MCOT.

Optionally, the first interval configuration information includes at least one of (i) and (ii): (i) a time-frequency location indicating that the network side device 20 starts downlink transmission in the MCOT; and (ii) indicating that the puncturing is performed at the last symbol of the last subframe of the autonomously scheduled uplink transmission.

Optionally, the downlink control information is used to instruct the mobile communication terminal to perform at least one of (i) triggering an uplink transmission and (ii) scheduling an uplink transmission within the MCOT.

In the embodiment of the present disclosure, the network side device performs autonomous scheduling uplink transmission initiated in the maximum channel occupation duration MCOT after the mobile communication terminal performs the first listening and the LBT success, and the MCOT is the channel determined according to the parameter of the LBT. The autonomously scheduled uplink transmission carries uplink control information; and, according to the indication of the uplink control information, after performing the autonomously scheduled uplink transmission, performing downlink transmission in the MCOT. In the MCOT obtained by the autonomous scheduling uplink transmission of the mobile communication terminal, after the uplink transmission is performed, the downlink transmission of the network side device can be performed in the remaining time, thereby realizing the sharing of the channel resources in the MCOT and improving the utilization of the channel resources. rate.

As shown in FIG. 9, an embodiment of the present disclosure also provides a mobile communication terminal 30. The mobile communication terminal 30 includes: a determining module 31, configured to determine, according to parameters of the LBT, a corresponding maximum channel occupation duration MCOT after the mobile communication terminal 30 performs the first listening and after the LBT is successful; and the transmission module 32 is configured to be in the MCOT The autonomously scheduled uplink transmission carries the uplink control information, and the uplink control information is used to indicate that the network side device performs the autonomous scheduling uplink transmission of the mobile communication terminal and indicates that the network side device performs the autonomous scheduling. After the uplink transmission is completed, downlink transmission is performed in the MCOT.

Optionally, the uplink control information includes first interval configuration information that indicates an interval between the autonomous scheduling of the uplink transmission and the downlink transmission performed by the network side device in the MCOT.

Optionally, the mobile communication terminal 30 further includes: a control module 33, configured to control, according to a cell-level timing advance cell-specific TA and the MCOT carried in a system broadcast message of the network side device, to start autonomously scheduling uplink transmission Advance time.

Optionally, the downlink control information is used to instruct the mobile communication terminal 30 to perform at least one of (i) triggering an uplink transmission and (ii) scheduling an uplink transmission within the MCOT.

Optionally, the mobile communication terminal 30 further includes: an obtaining module 34, configured to acquire downlink control information that is sent by the network side device according to the autonomously scheduled uplink transmission feedback.

As shown in FIG. 10, an embodiment of the present disclosure further provides a network side device 40. The network side device 40 includes: an execution module 41, configured to perform autonomous scheduled uplink transmission initiated by the mobile communication terminal after the first listening to the LBT succeeding, and the MCOT is determined according to the parameter of the LBT. The autonomous scheduling uplink transmission carries the uplink control information; and the initiating module 42 is configured to perform, in the MCOT, after performing the autonomous scheduling uplink transmission according to the indication of the uplink control information Downlink transmission.

Optionally, the uplink control information includes first interval configuration information used to indicate an interval between the autonomous scheduling of the uplink transmission and the downlink transmission performed by the network side device 40 in the MCOT.

Optionally, the first interval configuration information includes at least one of (i) and (ii): (i) a time-frequency location indicating that the network-side device 40 starts downlink transmission in the MCOT; and (ii) indicating that the puncturing is performed at the last symbol of the last subframe of the autonomously scheduled uplink transmission.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present disclosure.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may be physically separate or may not be physically separate. The components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present disclosure.

In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such an understanding, a portion of the technical solution of the present disclosure that contributes in essence or to the related art or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above is only the specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the disclosure. It should be covered within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be determined by the scope of the claims.

The present disclosure provides an A1 channel resource sharing processing method, which is applied to a mobile communication terminal, and includes: after the mobile communication terminal performs the first listening and then sends the LBT successfully, determining the corresponding maximum channel occupation time MCOT according to the LBT parameter; Performing autonomous scheduling uplink transmission in the MCOT, where the autonomous scheduling uplink transmission carries uplink control information, where the uplink control information is used to instruct the network side device to perform the autonomous scheduling uplink transmission of the mobile communication terminal and instruct the network side device to perform After the autonomous scheduling uplink transmission is completed, downlink transmission is performed in the MCOT.

A2. The method according to A1, wherein the instructing the network side device to perform downlink transmission in the MCOT after performing the autonomously scheduled uplink transmission comprises: instructing the network side device to perform autonomous scheduling in the MCOT The first interval configuration information of the uplink transmission completion and the downlink transmission interval.

A3. The method according to A2, wherein the first interval configuration information comprises:

Instructing the time-frequency location of the downlink transmission of the network side device in the MCOT; and/or,

Indicates that the last symbol of the last subframe of the uplink transmission is automatically scheduled for puncturing.

A4. The method according to A3, wherein the time domain location indicating that the network side device performs downlink transmission in the MCOT comprises: indicating a starting subframe position of the downlink transmission.

A method according to A4, wherein the indicating a starting subframe position of the downlink transmission comprises: indicating that the second slot of the downlink transmission subframe starts downlink transmission.

A6. The method according to A4, wherein the uplink control information comprises a cell radio network temporary identifier C-RNTI, a size of the MCOT, a length of autonomously scheduled uplink transmission, and a starting subframe position and phase. And at least one of the second interval configuration information between the adjacent subframes, where the second interval configuration information includes the first interval configuration information.

A7. The method according to A1, wherein the performing the autonomous scheduling uplink transmission in the MCOT comprises: a cell-level timing advance amount cell-specific TA and a location carried in a system broadcast message of the network side device The MCOT controls the advance time of the autonomously scheduled uplink transmission.

A8. The method according to A1, wherein the content that the network side device performs downlink transmission in the MCOT includes: downlink control information and/or downlink data.

A9. The method according to A8, wherein the downlink control information is used to indicate that the mobile communication terminal triggers an uplink transmission and/or schedules an uplink transmission in the MCOT.

A10. The method according to A1, wherein after the step of transmitting the uplink control information in the MCOT, the method further includes: acquiring downlink control information that is sent by the network side device based on the autonomously scheduled uplink transmission feedback. .

A11. The method according to A10, wherein the downlink control information is further used to feed back a transmission confirmation character corresponding to a hybrid automatic repeat request HARQ process of a physical uplink shared channel (PUSCH) transmission on each subframe; or The downlink control information is further used to transmit a transmission acknowledgement character of all the hybrid automatic repeat request HARQ processes to be fed back on the physical uplink shared channel PUSCH on the preset number of subframes before the current subframe.

A12. The method according to A1, wherein the uplink control information is further used to indicate a type of LBT and/or a channel access priority corresponding to the downlink transmission in the MCOT by the network side device.

The embodiment of the present disclosure further provides a B13, a channel resource sharing processing method, which is applied to a network side device, and is characterized in that: after the mobile communication terminal performs the first listening and the LBT is successfully sent, it is initiated in the maximum channel occupation time MCOT. Autonomously scheduling uplink transmission, the MCOT is a channel occupation duration determined according to the parameter of the LBT, and the autonomous scheduling uplink transmission carries uplink control information; and performing the autonomous scheduling uplink according to the indication of the uplink control information After the transmission is completed, downlink transmission is performed within the MCOT.

The method according to the B13, wherein the uplink control information is used to indicate that the network side device performs the first interval configuration information of the autonomous scheduling uplink transmission completion and the downlink transmission interval time in the MCOT.

The method of B14, wherein the first interval configuration information includes: a time-frequency location indicating that the network side device performs downlink transmission in the MCOT; and/or indicating autonomous scheduling uplink transmission. The last symbol of the last sub-frame is punctured.

The method of B15, wherein the time domain location indicating that the network side device performs downlink transmission in the MCOT comprises: indicating a starting subframe position of the downlink transmission.

The method of B16, wherein the indicating a starting subframe position of the downlink transmission comprises: indicating that the second slot of the downlink transmission subframe starts downlink transmission.

The method according to B16, wherein the uplink control information includes a cell radio network temporary identifier C-RNTI, a size of the MCOT, a length of autonomously scheduled uplink transmission, and a start subframe position and phase. And at least one of the second interval configuration information between the adjacent subframes, where the second interval configuration information includes the first interval configuration information.

The method according to the B13, wherein the content that the network side device performs downlink transmission in the MCOT includes: downlink control information and/or downlink data.

The method of B19, wherein the downlink control information is used to indicate that the mobile communication terminal triggers uplink transmission and/or schedules uplink transmission in the MCOT.

The method of B19, wherein the downlink control information is further used to feed back a transmission confirmation character corresponding to a hybrid automatic repeat request HARQ process of a physical uplink shared channel PUSCH transmission on each subframe; or The downlink control information is further used to feed back the transmission confirmation characters of all the HARQ processes to be fed back in the preset number of subframes before the current subframe.

The method according to the B13, wherein the uplink control information is further used to indicate a type and/or a channel access priority of the LBT corresponding to the downlink transmission in the MCOT by the network side device.

The embodiment of the present disclosure further provides a C23, a mobile communication terminal, comprising: a processor, a memory, a network interface, and a data bus, wherein the data bus is used to connect the processor, the memory, and the network interface. The memory is used to store program code, and the program code used by the processor to invoke the memory to perform the following operations: after the mobile communication terminal performs the first listening and then sends the LBT successfully, determining the corresponding maximum channel occupation according to the parameters of the LBT. a duration MCOT; performing autonomous scheduling uplink transmission in the MCOT, where the autonomous scheduling uplink transmission carries uplink control information, where the uplink control information is used to instruct the network side device to perform the autonomous scheduling uplink transmission of the mobile communication terminal and the indication After the network side device performs the autonomous scheduling uplink transmission, the downlink transmission is performed in the MCOT.

The mobile communication terminal according to C23, wherein the instructing the network side device to perform downlink transmission in the MCOT after performing the autonomously scheduled uplink transmission comprises: instructing the network side device to execute in the MCOT Autonomously scheduling uplink transmission and performing first interval configuration information of a downlink transmission interval.

The mobile communication terminal according to C24, wherein the first interval configuration information comprises: a time-frequency location indicating that the network-side device performs downlink transmission in the MCOT; and/or indicating autonomous scheduling The last symbol of the last subframe of the upstream transmission is punctured.

The mobile communication terminal according to C24, wherein the time domain location indicating that the network side device performs downlink transmission in the MCOT comprises: indicating a starting subframe position of the downlink transmission.

The mobile communication terminal according to C26, wherein the starting subframe position indicating the downlink transmission comprises: indicating that the second slot of the downlink transmission subframe starts downlink transmission.

The mobile communication terminal according to C26, wherein the uplink control information includes a cell radio network temporary identifier C-RNTI, a size of the MCOT, a length of autonomously scheduled uplink transmission, and a start subframe position. And at least one of the second interval configuration information between the adjacent subframes, where the second interval configuration information includes the first interval configuration information.

The mobile communication terminal according to C23, wherein the processor is specifically configured to: control, based on a cell-level timing advance cell-specific TA and the MCOT carried in a system broadcast message of the network side device, Start the autonomous time to schedule the uplink transmission.

The mobile communication terminal according to C23, wherein the content that the network side device performs downlink transmission in the MCOT includes: downlink control information and/or downlink data.

The mobile communication terminal according to C30, wherein the downlink control information is used to indicate that the mobile communication terminal triggers uplink transmission and/or schedules uplink transmission in the MCOT.

The mobile communication terminal according to C23, wherein the processor is further configured to acquire downlink control information that is sent by the network side device based on the autonomously scheduled uplink transmission feedback.

The mobile communication terminal according to C32, wherein the downlink control information is further used to feed back a transmission confirmation character corresponding to the hybrid automatic repeat request HARQ process of the physical uplink shared channel PUSCH transmission on each subframe; or The downlink control information is further used to transmit, for all the preset number of subframes before the current subframe, the transmission acknowledgement characters of the hybrid automatic repeat request HARQ process to be fed back on the physical uplink shared channel PUSCH.

The mobile communication terminal according to C23, wherein the uplink control information is further used to indicate a type and/or a channel access priority of the LBT corresponding to the downlink transmission in the MCOT by the network side device. .

The embodiment of the present disclosure further provides a D35, network side device, including: a processor, a memory, a network interface, and a data bus, wherein the data bus is used to connect the processor, the memory, and the network interface. The memory is used to store the program code, and the program code used by the processor to invoke the memory performs the following operations: performing the autonomous operation initiated by the mobile communication terminal after the first listening to the LBT is successful, and the maximum channel occupation time MCOT is initiated. The uplink transmission is scheduled, the MCOT is a channel occupation time length determined according to the parameter of the LBT, and the autonomously scheduled uplink transmission carries uplink control information; and according to the indication of the uplink control information, performing the autonomous scheduling uplink transmission is completed. After that, downlink transmission is performed within the MCOT.

D36. The network side device according to D35, wherein the uplink control information is used to indicate that the network side device performs autonomous scheduling uplink transmission completion and performs a first interval configuration of a downlink transmission interval in the MCOT. information.

D37. The network side device according to D36, wherein the first interval configuration information includes: a time-frequency location indicating that the network side device performs downlink transmission in the MCOT; and/or, indicating autonomous scheduling The last symbol of the last subframe of the upstream transmission is punctured.

D38. The network side device according to D37, wherein the time domain location indicating that the network side device performs downlink transmission in the MCOT comprises: a starting subframe position indicating a downlink transmission.

D39. The network side device according to D38, wherein the starting subframe position indicating the downlink transmission comprises: indicating that the second slot of the downlink transmission subframe starts downlink transmission.

D40. The network side device according to D38, wherein the uplink control information includes a cell radio network temporary identifier C-RNTI, a size of the MCOT, a length of autonomously scheduled uplink transmission, and a starting subframe position. And at least one of the second interval configuration information between the adjacent subframes, where the second interval configuration information includes the first interval configuration information.

D41. The network side device according to D35, wherein the content that the network side device performs downlink transmission in the MCOT includes: downlink control information and/or downlink data.

D42. The network side device according to D41, wherein the downlink control information is used to indicate that the mobile communication terminal triggers uplink transmission and/or schedules uplink transmission in the MCOT.

D43. The network side device according to D41, wherein the downlink control information is further used to feed back a transmission confirmation character corresponding to a hybrid automatic repeat request HARQ process of a physical uplink shared channel PUSCH transmission on each subframe; or The downlink control information is further used to transmit, for all the preset number of subframes before the current subframe, the transmission acknowledgement characters of the hybrid automatic repeat request HARQ process to be fed back on the physical uplink shared channel PUSCH.

D44. The network side device according to D35, wherein the uplink control information is further used to indicate a type and/or a channel access priority of the LBT corresponding to the downlink transmission in the MCOT by the network side device. .

Claims

A channel resource sharing method applied to a mobile communication terminal, comprising:

After the mobile communication terminal performs the first listening and then sends the LBT successfully, determining the corresponding maximum channel occupation time MCOT according to the parameters of the LBT;

Performing autonomously scheduling uplink transmission in the MCOT, where the autonomously scheduled uplink transmission carries uplink control information, where the uplink control information is used to indicate that the network side device performs the autonomous scheduling uplink transmission of the mobile communication terminal and indicates the network side device. The downlink transmission is performed in the MCOT after the completion of the autonomous scheduling uplink transmission.
The method of claim 1, wherein the uplink control information further comprises:

And a first interval configuration information used to indicate an interval between the autonomous scheduling of the uplink transmission and the downlink transmission performed by the network side device in the MCOT.
The method of claim 2, wherein the first interval configuration information comprises at least one of (i) and (ii) below:

(i) indicating a time-frequency location at which the network side device starts downlink transmission within the MCOT; and

(ii) indicating that the puncturing is performed at the last symbol of the last subframe of the autonomously scheduled uplink transmission.
The method according to claim 3, wherein the time-frequency location indicating that the network side device starts downlink transmission in the MCOT comprises: a starting subframe position indicating that downlink transmission is started.
The method of claim 4, wherein the initiating a start subframe position indicating the start of the downlink transmission comprises: indicating that the downlink transmission begins at the second slot slot of the downlink transmission subframe.
The method according to claim 4, wherein the uplink control information comprises a cell radio network temporary identifier C-RNTI, a size of the MCOT, a length of autonomously scheduled uplink transmission, the start subframe position, and an adjacent sub-portion At least one of the second interval configuration information between the frames, the second interval configuration information including the first interval configuration information.
The method of claim 1, wherein the performing autonomous scheduling uplink transmission within the MCOT comprises:

Based on the cell-level timing advance cell-specific TA and the MCOT carried in the system broadcast message of the network side device, the control starts to autonomously schedule the advance time of the uplink transmission.
The method according to claim 1, wherein the content that the network side device performs downlink transmission in the MCOT includes at least one of downlink control information and downlink data.
The method according to claim 8, wherein the downlink control information is used to instruct the mobile communication terminal to perform at least one of (i) triggering an uplink transmission and (ii) scheduling an uplink transmission within the MCOT.
The method of claim 1, wherein after the autonomously scheduling uplink transmission in the MCOT, the method further comprises:

Obtaining downlink control information that is sent by the network side device based on the autonomously scheduled uplink transmission feedback.
The method according to claim 10, wherein the downlink control information is further used to feed back a transmission confirmation character corresponding to the hybrid automatic repeat request HARQ process of the physical uplink shared channel PUSCH transmission in each subframe; or

The downlink control information is further configured to transmit, by using a preset number of subframes before the current subframe, a transmission acknowledgement character corresponding to the hybrid automatic repeat request HARQ process of the physical uplink shared channel PUSCH transmission to be fed back.
The method according to claim 1, wherein the uplink control information is further used to indicate at least one of a type of LBT and a channel access priority corresponding to the downlink transmission in the MCOT by the network side device.
A channel resource sharing method applied to a network side device, comprising:

Performing autonomously scheduled uplink transmission initiated by the mobile communication terminal in the maximum channel occupation duration MCOT after the successful listening to the LBT, the MCOT is the channel occupation duration determined according to the parameters of the LBT, and the autonomous scheduling uplink transmission Carrying uplink control information;

According to the uplink control information, after performing the autonomous scheduling uplink transmission, downlink transmission is performed in the MCOT.
The method according to claim 13, wherein the uplink control information comprises a first interval configuration for instructing the network side device to perform an autonomously scheduled uplink transmission completion and an interval between downlink transmissions in the MCOT. information.
The method of claim 14, wherein the first interval configuration information comprises at least one of (i) and (ii) below:

(i) a time-frequency location for instructing the network side device to start downlink transmission within the MCOT; and

(ii) indicating that the puncturing is performed at the last symbol of the last subframe of the autonomously scheduled uplink transmission.
The method according to claim 15, wherein the time-frequency location indicating that the network side device starts downlink transmission in the MCOT comprises: a starting subframe position indicating that downlink transmission is started.
The method of claim 16, wherein the initiating a start subframe position indicating that the downlink transmission is started comprises: instructing to start downlink transmission at a second slot slot of the downlink transmission subframe.
The method according to claim 16, wherein the uplink control information comprises a cell radio network temporary identifier C-RNTI, a size of the MCOT, a length of autonomously scheduled uplink transmission, the starting subframe position, and an adjacent sub- At least one of the second interval configuration information between the frames, the second interval configuration information including the first interval configuration information.
The method according to claim 13, wherein the content that the network side device performs downlink transmission in the MCOT comprises at least one of downlink control information and downlink data.
The method according to claim 19, wherein the downlink control information is used to instruct the mobile communication terminal to perform at least one of (i) triggering an uplink transmission and (ii) scheduling an uplink transmission within the MCOT.
The method according to claim 19, wherein the downlink control information is further used to feed back a transmission confirmation character corresponding to the hybrid automatic repeat request HARQ process of the physical uplink shared channel PUSCH transmission in each subframe; or

The downlink control information is further used to feed back a transmission confirmation character corresponding to all HARQ processes to be fed back with a preset number of subframes before the current subframe.
The method according to claim 13, wherein the uplink control information is further used to indicate at least one of a type of LBT and a channel access priority corresponding to downlink transmission by the network side device in the MCOT. .
A mobile communication terminal includes:

Processor, memory, network interface, and data bus,

Wherein the data bus is used to connect the processor, the memory and the network interface, the memory is used to store program code, and the processor is used to invoke the program code stored in the memory to execute according to claim 1. The method of any of -12.
A network side device, including:

Processor, memory, network interface, and data bus,

Wherein the data bus is used to connect the processor, the memory and the network interface, the memory is used to store program code, and the processor is used to call the program code stored in the memory to execute according to claim 13. The method of any of -22.
A mobile communication terminal includes:

a determining module, configured to determine, according to parameters of the LBT, a corresponding maximum channel occupation duration MCOT after the mobile communication terminal performs the first listening and then sends the LBT successfully;

a transmission module, configured to perform autonomous scheduling uplink transmission in the MCOT, where the autonomously scheduled uplink transmission carries uplink control information, where the uplink control information is used to instruct the network side device to perform autonomous scheduling uplink transmission of the mobile communication terminal And instructing the network side device to perform downlink transmission in the MCOT after performing the autonomously scheduled uplink transmission.
A network side device, including:

An execution module, configured to perform autonomous scheduling uplink transmission initiated by the mobile communication terminal after the first listening to the LBT succeeds, and the MCOT is the channel occupation duration determined according to the parameter of the LBT, The autonomously scheduled uplink transmission carries uplink control information;

And an initiating module, configured to perform downlink transmission in the MCOT after performing the autonomously scheduled uplink transmission according to the indication of the uplink control information.