CN116684982A

CN116684982A - Transmission method, transmission device, communication apparatus, and readable storage medium

Info

Publication number: CN116684982A
Application number: CN202210162035.XA
Authority: CN
Inventors: 姜蕾
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2023-09-01

Abstract

The application discloses a transmission method, a device, communication equipment and a readable storage medium, wherein under the condition of successful transmission of a first uplink transmission, a terminal determines whether to listen before talk for a second uplink transmission according to first channel occupation time information and/or listen before talk type; the first uplink transmission is one uplink transmission in continuous uplink transmission, and the second uplink transmission is an uplink transmission after the first uplink transmission in the continuous uplink transmission.

Description

Transmission method, transmission device, communication apparatus, and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a transmission method, a transmission device, communication equipment and a readable storage medium.

Background

In future communication systems, unlicensed bands (unlicensed bands) may be used as a complement to licensed bands (licensed bands) to help operators expand services. To keep pace with New Radio (NR) deployments and maximize as much as possible unlicensed access based on NR, unlicensed bands may operate in the 5GHz,37GHz and 60GHz bands. The large bandwidth (80 or 100 MHz) of unlicensed bands can reduce the implementation complexity of base stations and terminals, such as User Equipment (UE). Since unlicensed bands are shared by multiple radio access technologies (Radio Access Technology, RATs), such as WiFi, radar, long term evolution (Long Term Evolution, LTE) -licensed spectrum assisted access (License Assisted Access, LAA), etc., unlicensed bands must be used in certain countries or regions in compliance with regulations (regulations) to ensure that all devices can use the resources fairly, such as listen before talk (Listen Before Talk, LBT), maximum channel occupancy time (Maximum Channel Occupancy Time, MCOT), etc. When the transmission node needs to send information, it needs to make LBT first, and perform power Detection (ED) on surrounding nodes, and when the detected power is lower than a threshold, consider the channel as empty (idle), and the transmission node can send. Otherwise, the channel is considered as busy, and the transmission node cannot transmit. After the transmitting node starts transmitting, the channel occupation time (Channel Occupancy Time, COT) cannot exceed MCOT. The transmission node may be a base station, UE, wiFi Access Point (AP), etc.

When the UE successfully transmits any one of the continuous uplink transmissions on the unlicensed frequency band, the UE may continue the remaining uplink transmission without using the LBT, but the UE cannot determine whether the resources corresponding to the remaining uplink transmission are available without using the LBT, and when the resources of the remaining uplink transmission are not available, a transmission failure problem may occur.

Disclosure of Invention

The embodiment of the application provides a transmission method, a transmission device, communication equipment and a readable storage medium, which solve the problem that continuous uplink transmission cannot be completely successfully transmitted.

In a first aspect, a transmission method is provided, including:

under the condition of successful transmission of the first uplink transmission, the terminal determines whether to listen before talk for the second uplink transmission according to the first channel occupation time information and/or the type of listen before talk;

the first uplink transmission is one uplink transmission in continuous uplink transmission, and the second uplink transmission is an uplink transmission after the first uplink transmission in the continuous uplink transmission.

In a second aspect, a transmission device is provided, applied to a terminal, including:

the first processing module is used for determining whether to listen before talk for the second uplink transmission according to the first channel occupation time information and/or the type of listen before talk under the condition of successfully transmitting the first uplink transmission;

In a third aspect, a terminal is provided, including: a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a fourth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method according to the first aspect.

In a fifth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions implementing the steps of the method according to the first aspect.

In a sixth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to carry out the steps of the method according to the first aspect.

In a seventh aspect, a communication system is provided, the communication system comprising a terminal and a network-side device, the terminal being configured to perform the steps of the method according to the first aspect.

In the embodiment of the application, under the condition that the terminal successfully transmits the first uplink transmission, the terminal can determine whether the residual uplink transmission needs to be LBT according to the first channel occupation time information and/or the type of listen before talk, when the terminal determines that the residual uplink transmission can be directly transmitted, the communication efficiency can be improved, when the terminal determines that the LBT needs to be performed, when the residual uplink transmission is transmitted, the resource conflict and the signal interference can be avoided, and the communication reliability is improved.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic diagram of a transmission method according to an embodiment of the present application;

FIG. 3 is one of the transmission diagrams in the first embodiment;

FIG. 4 is a second transmission diagram in the first embodiment;

FIG. 5 is a third transmission diagram in the first embodiment;

FIG. 6 is one of the transmission diagrams in the second embodiment;

FIG. 7 is a second transmission diagram in the second embodiment;

fig. 8 is one of transmission diagrams in the third embodiment;

FIG. 9 is a second transmission diagram in the third embodiment;

FIG. 10 is a schematic diagram of a terminal according to an embodiment of the present application;

FIG. 11 is a second schematic diagram of a terminal according to an embodiment of the present application;

fig. 12 is a third schematic diagram of a terminal according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE implementationsThe LTE-Advanced, LTE-a system may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

In order to facilitate understanding of the embodiments of the present application, the following technical points are first described:

Types (types) of LBT commonly used in unlicensed new air interfaces (New Radio Unlicensed, NRU) can be classified into type 1 (type 1), type 2A (type 2A), type 2B (type 2B) and type 2C (type 2C).

Type 1LBT is a back-off based channel listening mechanism, where when a transmitting node listens to a channel as busy, it goes back to listening until it listens to the channel as empty.

Type 2C is that the transmitting node does not make LBT, i.e. does not listen before talk (no LBT) or transmit immediately (immediate transmission).

Type 2A and type 2B LBT are one-time listen-before-talk (one-shot LBT), i.e. a node makes an LBT before transmitting, and transmits if the channel is empty, and does not transmit if the channel is busy.

Type 2A and type 2B differ in that type 2A makes LBT within 25 microseconds (us), which is suitable for use in sharing COT with a gap (gap) between two transmissions of 25us or more. While type 2B makes LBT within 16us, it is suitable for the gap between two transmissions to be equal to 16us when sharing COT. In addition, there is a type 2LBT applicable to LAA/enhanced authorization Assisted Access (Enhanced Licensed Assisted Access, eLAA)/further enhanced authorization Assisted Access (FeLAA), when sharing COT, a gap between two transmissions is greater than or equal to 25us, and a base station (eNB) and a UE may use the type 2LBT. In addition, in the frequency range (frequency range) 2-2, the types of LBT are type 1, type 2 and type 3, type 1 is a back-off based channel listening mechanism, type 2 is a one-shot LBT, LBT of 5us is done within 8us, and type 3 is not done.

In NRU/LAA/eLAA/FeLAA/frequency range 2-2, if the UE is scheduled for continuous uplink transmission without gap, including a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) scheduled by one or more uplink grants (UL grant (s)), a physical uplink control channel (Physical Uplink Control Channel, PUCCH) scheduled by one or more downlink grants (DL grant (s)), or a sounding reference signal (Sounding Reference Signal, SRS) scheduled by one or more UL grant(s) or DL grant(s), when the UE adopts any one of type 1, type 2A, type 2B, type 2C or type 3 LBT mode to access the channel and successfully transmit one of the scheduled uplink transmissions, the UE may continue to transmit the remaining uplink transmissions. The above type 1, type 2A, type 2B, type 2C, or type 3 may refer to the types defined in the related art.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11, a terminal 12, and a network-side device 13. The terminals 11 and 12 may be mobile phones, tablet computers (Tablet Personal Computer), laptop computers (Laptop computers) or terminal-side devices called notebook computers, personal digital assistants (Personal Digital Assistant, PDA), palm computers, netbooks, ultra-mobile personal computers (ultra-mobile personal Computer, UMPC), mobile internet appliances (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/Virtual Reality (VR) devices, robots, wearable devices (e.g., mobile devices), vehicle-mounted devices (VUE), pedestrian terminals (PUE), smart home (home devices with wireless communication function, such as refrigerators, televisions, washing machines or furniture), game machines, personal computers (personal Computer, PC), teller machines or self-service machines, and the like, and the Wearable devices include: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific types of the terminal 11 and the terminal 12 are not limited in the embodiment of the present application. The network-side device 13 may comprise an access network device or a core network device, wherein the network-side device 13 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device 13 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission/reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited.

The transmission method, the transmission device, the communication equipment and the readable storage medium provided by the embodiment of the application are described in detail below through some embodiments and application scenes thereof with reference to the accompanying drawings.

Referring to fig. 2, an embodiment of the present application provides a transmission method, where an execution body of the method includes a terminal, and specific steps include: step 201.

Step 201: under the condition of successful transmission of the first uplink transmission, the terminal determines whether to listen before talk for the second uplink transmission according to the first channel occupation time information and/or the type of listen before talk;

Alternatively, the continuous uplink transmission may be a continuous uplink transmission of a Configured Grant (CG), or a scheduled continuous uplink transmission.

In one embodiment, the terminal determines whether to listen before talk for the second uplink transmission according to the first channel occupation time information.

In another embodiment, the terminal determines whether to listen-before-talk for the second uplink transmission according to the first channel occupation time information and the type of listen-before-talk.

In another embodiment, the terminal determines whether to listen-before-talk for the second uplink transmission based on the listen-before-talk type.

The listen before talk type (LBT type) described above may also be replaced with a channel access type (channel access type). LBT is equivalent to channel access (channel access) or channel listening (channel sensing).

In one embodiment of the present application, the uplink transmission includes one or more of the following: PUSCH, PUCCH, SRS.

It is understood that the continuous uplink transmission may be continuous uplink transmission without gap or with gap less than or equal to a specific value (e.g., 16 us), including: PUSCH scheduled by one or more UL grant, PUCCH scheduled by one or more DL grant, or SRS scheduled by one or more UL grant or DL grant. Downlink control information (Downlink Control Information, DCI) for scheduling PUSCH, PUCCH, or SRS, that is, UL grant or DL grant, indicates information such as a corresponding channel access type and channel access priority level (channel access priority class).

The first uplink transmission may be any one of continuous uplink transmissions, the Type of LBT of the first uplink transmission may be any one of Type 1,Type 2,Type 2A,Type 2B,Type 2C or Type3, and the second uplink transmission is the remaining uplink transmission except the first uplink transmission in the continuous uplink transmission (or the second uplink transmission may also be referred to as a subsequent uplink transmission of the first uplink transmission in the continuous uplink transmission).

In one embodiment of the present application, the determining, by the terminal, whether to listen-before-talk for the second uplink transmission according to the first channel occupation time information includes:

if the first part of uplink transmission in the second uplink transmission is located in the channel occupation time indicated by the first channel occupation time information, the terminal does not listen before talk on the first part of uplink transmission, and directly transmits the first part of uplink transmission; wherein the first portion of the uplink transmission may be part or all of the second uplink transmission.

And/or the number of the groups of groups,

and if the second part of the uplink transmission in the second uplink transmission is located outside the channel occupation time, the terminal performs listen-before-talk on the second part of the uplink transmission according to the listen-before-talk type of the second part of the uplink transmission, wherein the second part of the uplink transmission can be part or all of the second uplink transmission.

For example, the second uplink transmission may include one or more uplink transmissions, and when all uplink transmissions in the second uplink transmission are within the channel occupation time indicated by the first channel occupation time information, the terminal does not listen before talk to the second uplink transmission, and directly transmits the second uplink transmission.

Or when all uplink transmissions in the second uplink transmission are located outside the channel occupation time, the terminal listens before talk according to the LBT types corresponding to the second uplink transmissions, and if the channels are monitored to be idle, the terminal transmits; otherwise, the transmission is aborted.

Or when part of the uplink transmission in the second uplink transmission is located within the channel occupation time and the other part of the uplink transmission is located outside the channel occupation time, the terminal directly transmits the second uplink transmission located within the channel occupation time without listening before speaking, and listens before speaking the second uplink transmission located outside the channel occupation time according to the LBT type corresponding to each second uplink transmission, and if the monitored channel is idle, the terminal transmits the second uplink transmission; otherwise, the transmission is aborted.

In one embodiment of the application, the continuous uplink transmission is scheduled by downlink control information (Downlink Control Information, DCI), i.e. the DCI may include information to schedule the continuous uplink transmission. In addition, the downlink control information may further include: and indicating information indicating the type of the listen before talk of the continuous uplink transmission. Alternatively, each uplink transmission in the continuous uplink transmission may correspond to a respective LBT type, and the LBT types corresponding to different uplink transmissions may be the same or different.

In one embodiment of the present application, the first channel occupation time information includes one or more of the following:

(1) Channel occupation time information of the terminal (described as either terminal-side channel occupation time information or terminal-initiated channel occupation time information);

optionally, the channel occupancy time information of the terminal includes MCOT, optionally obtained by a channel access priority ranking (Channel Access Priority Class, CAPC) of Type1 channel access.

(2) Channel occupancy time information of the network device (described either as network device side channel occupancy time information or as base station initiated channel occupancy time information (gNB/eNB-initiated COT)).

For example, the network device may indicate channel occupation time information of the network device through DCI 2_0,

in one embodiment of the present application, the determining, by the terminal, whether to listen-before-talk for the second uplink transmission according to the first channel occupation time information and the listen-before-talk type includes:

if the terminal does not detect the channel occupation time information of the network equipment and the type of the first uplink transmission is the first type, the terminal determines whether to directly transmit the second uplink transmission according to the type of the second uplink transmission.

Optionally, the first type includes: type 2, type 2A, type 2B, type 2C, or type 3.

In one embodiment of the present application, the determining, by the terminal, whether to directly transmit the second uplink transmission according to the listen-before-talk type of the second uplink transmission includes:

if the type of the listen-before-talk of the second uplink transmission is the second type, the terminal does not listen-before-talk of the second uplink transmission and directly transmits the second uplink transmission;

or alternatively, the process may be performed,

and if the type of the listen before talk of the second uplink transmission is a third type, the terminal performs listen before talk on the second uplink transmission according to the type of the listen before talk of the second uplink transmission.

Optionally, the second type includes: type 2A, type 2C, type 2 or type 3; the third type is type 1.

It should be noted that, the above type 1 may be type 1 in NRU or type 1 of frequency range 2-2, and the above type 2 may be type 2 in LAA/eLAA/FeLAA or type 2 of frequency range 2-2.

Embodiments of the present application will be described below with reference to example one, example two and example three.

Embodiment one:

in fig. 3 and 4, DCI1, DCI2 and DCI3 schedule consecutive PUSCH1, PUSCH2 and PUSCH3, respectively, and the indicated channel access (channel access) types are both type 1, i.e. the types of LBTs of PUSCH1, PUSCH2 and PUSCH3 are both type 1.

In fig. 3, gNB-initiated COT is not detected before uplink transmission, the type of LBT adopted by the UE is type 1, and when the channel is empty, PUSCH1 is transmitted, at this time, the UE obtains that MCOT is 8 (ms) ms according to the channel access priority level (Channel Access Priority Class, cap) =3 of the type of LBT of PUSCH1, and subsequent continuous transmissions PUSCH2 and PUSCH3 fall in MCOT, and the UE does not make LBT and directly transmits.

In fig. 4, if the UE detects the COT information, for example, DCI2_0, knows that there is a gNB-initiated COT2 and the remaining COT duration, and PUSCH1, PUSCH2 and PUSCH3 are all within the remaining COTs, the UE may use an LBT access channel of type 2A, type 2, type 3 or type 1 before transmitting PUSCH1, and if the channel is empty, PUSCH1 is transmitted, and then PUSCH2 and PUSCH3 are directly transmitted.

Furthermore, the type of LBT indicated may also be other than type 1, as shown in fig. 5. If the UE detects the COT information, for example, DCI2_0, and if all continuous uplink transmissions are within the COT, the UE may directly transmit the remaining uplink transmissions without LBT after successfully transmitting any one uplink transmission.

Embodiment two:

in fig. 6, DCI1, DCI2 and DCI3 schedule consecutive PUSCH1, PUSCH2 and PUSCH3, respectively, and the indicated LBT is of type 1.

After detecting the COT information, for example, DCI2_0, the UE knows that there is a gNB-initiated COT2 and the remaining COT duration, and only PUSCH1 is in the remaining COT, and before transmitting PUSCH1, the UE may use an LBT access channel of type 2A, type 2, type 3 or type 1, and if the channel is empty, PUSCH1 is transmitted. At this time, PUSCH2 and PUSCH3 are not within the gNB-initiated COT2, and cannot be directly transmitted, and the UE performs channel access according to the type of LBT indicated by DCI scheduling PUSCH2 and PUSCH3. Since PUSCH2 has no LBT time before, PUSCH2 cannot transmit, type 1 LBT is done for PUSCH3, and PUSCH3 is transmitted if the channel is empty.

In fig. 7, DCI1, DCI2, DCI3 and DCI4 schedule consecutive PUSCH1, PUSCH2, PUSCH3 and PUSCH4, respectively, and the indicated LBT is of type 1.

And the UE performs channel access according to the LBT type indicated by the DCI1 and the CAPC before transmitting the PUSCH1, and when the monitored channel is empty, the UE transmits the PUSCH1. If caps=1 indicated by DCI1, MCOT is 2ms, PUSCH2 is within UE-initiated COT, and PUSCH3 and PUSCH4 are not within UE-initiated COT. Therefore, the UE may directly transmit PUSCH2 without LBT, and for PUSCH3 and PUSCH4, listen before talk is required according to the type of LBT indicated. Also, since PUSCH3 has no LBT time before, PUSCH3 cannot be transmitted, and PUSCH4 may be transmitted if the channel is empty.

Embodiment III:

in fig. 8 and 9, the gNB or eNB has scheduled four consecutive uplink transmissions, and for PUSCH1, the indicated type of LBT may be type 2A, type 2B, type 2C, type 2 or type 3; for PUSCH2, PUSCH3 and PUSCH4, the type of LBT indicated is type 2A, type 2C, type 2, type 3 or type 1. If the UE does not detect the base station side COT information, for example, DCI2_0, the UE does not know the remaining duration of the gNB/eNB-initiated COT and cannot determine whether the continuous uplink transmission is within the COT. After the UE successfully accesses the channel and transmits PUSCH1 according to type 2A, type 2B, type 2C, type 2 or type 3, the UE needs to determine whether transmission can be continued according to the type of LBT of PUSCH2, PUSCH3 and PUSCH 4. If the type of LBT of PUSCH2, PUSCH3 and PUSCH4 is indicated as one of type 2A, type 2C, type 2, or type 3, then it is implicitly indicated that all uplink transmissions are within the gNB/eNB-initiated COT, which may be direct transmissions. If the types of LBT for PUSCH2, PUSCH3 and PUSCH4 are indicated as type 1, the UE cannot assume that the uplink transmissions are all within the gNB/eNB-initiated COT, and the UE needs to re-make LBTs for the remaining uplink transmissions.

As shown in fig. 9, since UE cannot complete LBT before PUSCH2 transmission, PUSCH2 will not be transmitted, if UE completes LBT before PUSCH3, UE may complete transmission of PUSCH3 and PUSCH4 within UE-initiated COT, and LBT is not required before PUSCH4 is transmitted.

The PUSCH in the first, second and third embodiments may be uplink transmission such as PUCCH and SRS. Also, the first, second and third embodiments described above can be extended to LAA/eLAA/FeLAA.

In the above embodiments, particularly, the first embodiment, the second embodiment and the third embodiment are all described by way of example in terms of scheduled continuous transmission, it will be understood that the continuous transmission of the configuration grant may also be implemented by referring to a similar manner, so that repetition is avoided and therefore a description is omitted.

Referring to fig. 10, an embodiment of the present application provides a transmission apparatus, which is applied to a terminal, and the apparatus 1000 includes:

a first processing module 1001, configured to determine whether to listen before talk for the second uplink transmission according to the first channel occupation time information and/or the type of listen before talk when the first uplink transmission is successfully transmitted;

In one embodiment of the present application, the first processing module includes:

a first processing unit, configured to, if a first part of uplink transmissions in the second uplink transmissions is located in a channel occupation time indicated by the first channel occupation time information, not listen before talk on the first part of uplink transmissions, and directly transmit the first part of uplink transmissions;

and/or the number of the groups of groups,

and the second processing unit is used for performing listen-before-talk on the second part of uplink transmission according to the type of listen-before-talk of the second part of uplink transmission by the terminal if the second part of uplink transmission in the second uplink transmission is located outside the channel occupation time.

In one embodiment of the present application, the continuous uplink transmission is scheduled by downlink control information, and the downlink control information includes: and indicating information indicating the type of the listen before talk of the continuous uplink transmission.

In one embodiment of the present application, the first channel occupation time information includes: and the channel occupation time information of the terminal and/or the channel occupation time information of the network equipment.

And the third processing unit is used for determining whether to directly transmit the second uplink transmission according to the type of the listen before talk of the second uplink transmission if the channel occupation time information of the network equipment is not detected and the type of the listen before talk of the first uplink transmission is the first type.

In one embodiment of the application, the first type comprises: type 2, type 2A, type 2B, type 2C, or type 3.

In one embodiment of the present application, the third processing unit is further configured to:

if the type of the listen-before-talk of the second uplink transmission is the second type, the second uplink transmission is directly transmitted without performing listen-before-talk on the second uplink transmission;

or alternatively, the process may be performed,

and if the type of the listen before talk of the second uplink transmission is a third type, performing listen before talk on the second uplink transmission according to the type of the listen before talk of the second uplink transmission.

In one embodiment of the application, the second type comprises: type 2A, type 2C, type 2 or type 3; alternatively, the third type is type 1.

The device provided by the embodiment of the application can realize each process realized by the embodiment of the method of fig. 2 and achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

The embodiment of the application also provides a terminal which comprises a processor and a communication interface, wherein the processor is used for determining whether to listen before talk for the second uplink transmission according to the first channel occupation time information and/or the type of listen before talk under the condition of successfully transmitting the first uplink transmission; the first uplink transmission is one uplink transmission in continuous uplink transmission, and the second uplink transmission is an uplink transmission after the first uplink transmission in the continuous uplink transmission. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 11 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1100 includes, but is not limited to: at least part of the components of the radio frequency unit 1101, the network module 1102, the audio output unit 1103, the input unit 1104, the sensor 1105, the display unit 1106, the user input unit 1107, the interface unit 1108, the memory 1109, and the processor 1110, etc.

Those skilled in the art will appreciate that the terminal 1100 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 1110 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 11 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1104 may include a graphics processing unit (Graphics Processing Unit, GPU) 11041 and a microphone 11042, the graphics processor 11041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1107 includes at least one of a touch panel 11071 and other input devices 11072. The touch panel 11071 is also referred to as a touch screen. The touch panel 11071 may include two parts, a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 1101 may transmit the downlink data to the processor 1110 for processing; in addition, the radio frequency unit 1101 may send uplink data to the network side device. Typically, the radio frequency unit 1101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1109 may be used to store software programs or instructions and various data. The memory 1109 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1109 may include volatile memory or nonvolatile memory, or the memory 1109 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 1109 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1110.

The terminal provided by the embodiment of the present application can implement each process implemented by the embodiment of the method of fig. 2, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Optionally, as shown in fig. 12, the embodiment of the present application further provides a terminal 1200, including a processor 1201 and a memory 1202, where the memory 1202 stores a program or an instruction that can be executed on the processor 1201, for example, when the communication device 1200 is a terminal, the program or the instruction is executed by the processor 1201 to implement each step of the embodiment of the method of fig. 2, and the same technical effects can be achieved, so that repetition is avoided, and further description is omitted herein.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements the method of fig. 2 and the processes of the foregoing embodiments, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or instructions, to implement each process of each method embodiment shown in fig. 2 and described above, and to achieve the same technical effect, so that repetition is avoided, and no further description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement the processes of the embodiments of the method shown in fig. 2 and described above, and achieve the same technical effects, and are not repeated herein.

The embodiment of the present application further provides a communication system, where the communication system includes a terminal and a network side device, and the terminal is configured to execute each process of the embodiments of the method as shown in fig. 2 and the foregoing, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A transmission method, comprising:

2. The method of claim 1, wherein the determining, by the terminal, whether to listen-before-talk the second uplink transmission based on the first channel occupancy time information comprises:

if the first part of uplink transmission in the second uplink transmission is located in the channel occupation time indicated by the first channel occupation time information, the terminal does not listen before talk on the first part of uplink transmission, and directly transmits the first part of uplink transmission;

And/or the number of the groups of groups,

and if the second part of the uplink transmission in the second uplink transmission is positioned outside the channel occupation time, the terminal performs listen-before-talk on the second part of the uplink transmission according to the listen-before-talk type of the second part of the uplink transmission.

3. The method of claim 2, wherein the continuous uplink transmission is scheduled by downlink control information, the downlink control information comprising: and indicating information indicating the type of the listen before talk of the continuous uplink transmission.

4. The method of claim 1, wherein the first channel occupancy time information comprises: and the channel occupation time information of the terminal and/or the channel occupation time information of the network equipment.

5. The method of claim 4, wherein the determining by the terminal whether to listen before talk for the second uplink transmission based on the first channel occupancy time information and the listen before talk type comprises:

6. The method of claim 5, wherein the first type comprises: type 2, type 2A, type 2B, type 2C, or type 3.

7. The method of claim 5, wherein the determining, by the terminal, whether to transmit the second uplink transmission directly based on a listen-before-talk type of the second uplink transmission comprises:

or alternatively, the process may be performed,

and if the type of the first listen-before-talk of the second uplink transmission is a third type, the terminal performs the first listen-before-talk on the second uplink transmission.

8. The method of claim 7, wherein the second type comprises: type 2A, type 2C, type 2 or type 3;

or alternatively, the process may be performed,

the third type is type 1.

9. The method of claim 1, wherein the uplink transmission comprises one or more of: physical uplink shared channel, physical uplink control channel, sounding reference signal.

10. A transmission apparatus, applied to a terminal, characterized by comprising:

11. The apparatus of claim 10, wherein the first processing module comprises:

and/or the number of the groups of groups,

12. The apparatus of claim 11, wherein the continuous uplink transmission is scheduled by downlink control information, the downlink control information comprising: and indicating information indicating the type of the listen before talk of the continuous uplink transmission.

13. The apparatus of claim 10, wherein the first channel occupancy time information comprises: and the channel occupation time information of the terminal and/or the channel occupation time information of the network equipment.

14. The apparatus of claim 13, wherein the first processing module comprises:

15. The apparatus of claim 14, wherein the first type comprises: type 2, type 2A, type 2B, type 2C, or type 3.

16. The apparatus of claim 14, wherein the third processing unit is further configured to:

or alternatively, the process may be performed,

17. The apparatus of claim 16, wherein the second type comprises: type 2A, type 2C, type 2 or type 3;

or alternatively, the process may be performed,

the third type is type 1.

18. The apparatus of claim 10, wherein the uplink transmission comprises one or more of: physical uplink shared channel, physical uplink control channel, sounding reference signal.

19. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which program or instruction when executed by the processor implements the steps of the method according to any of claims 1 to 9.

20. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any of claims 1 to 9.