CN116094666A - Transmission method, apparatus, device, and readable storage medium - Google Patents

Abstract

The embodiment of the application provides a transmission method, a transmission device and a readable storage medium, wherein the transmission method comprises the following steps: the terminal receives first information, wherein the first information is used for determining at least two frame structures; the frame structure includes at least one of: TDD uplink and downlink configuration; a first frame structure, wherein all time units in the first frame structure correspond to downlink transmission opportunities; and the second frame structure, wherein all time units in the second frame structure correspond to uplink transmission opportunities.

Description

Transmission method, device, equipment and readable storage medium

technical field

The embodiments of the present application relate to the field of communication technologies, and in particular to a transmission method, device, equipment, and readable storage medium.

Background technique

In existing standards and implementation schemes, technologies to reduce latency include pre-scheduling, scheduling-free, short scheduling request (Scheduling Request, SR) period, DRX (Connected Discontinuous Reception, C-DRX) in closed connection state, 1ms frame structure, Mini-slot, reduce target Block Error Rate (Block Error Rate, BLER), increase subcarrier spacing, etc. The delay dimension reduced by each technology is different, as shown in Figure 1.

How to reduce the time delay of Time Division Duplex (TDD) system is an urgent problem to be solved.

Contents of the invention

The embodiment of the present application aims to provide a transmission method, device, device and readable storage medium to solve the problem of how to reduce the time delay of a TDD system.

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

The terminal receives first information, the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; the first frame structure, all time in the first frame structure The unit corresponds to a downlink transmission opportunity; the second frame structure, and all time units in the second frame structure correspond to an uplink transmission opportunity.

Optionally, the frame structure is suitable for TDD uplink and downlink common configuration or TDD uplink and downlink specific configuration.

Optionally, the first information is used to determine at least two frame structures of a specified cell or a specified resource unit.

Optionally, the first information includes one or more of the following:

subcarrier spacing;

Uplink and/or downlink transmission periods;

Number of uplink and/or downlink time slots;

Number of upstream and/or downstream symbols.

Optionally, the at least two frame structures satisfy that: frame structures of different resource units of the TDD carrier are different.

Optionally, the method also includes:

The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different resource units in the TDD carrier at the first moment according to the first information.

Optionally, the method also includes:

The terminal receives second information, where the second information indicates: time domain offsets of at least some resource units.

Optionally, the method also includes:

The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different resource units in the TDD carrier at a second moment according to the first information and the second information.

Optionally, at least one resource unit is configured as a third frame structure, the third frame structure sequentially includes: a first part, a second part and a third part, and each time unit in the first part corresponds to uplink transmission opportunity, each time unit in the second part corresponds to a downlink transmission opportunity, and the third part is an interval between downlink transmission opportunities and uplink transmission opportunities.

Optionally, the method also includes:

In the case of supporting configuration of different frame structures for different TDD carriers, the terminal receives third information, where the third information indicates: a time slot offset of the TDD carrier.

Optionally, the method also includes:

The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different TDD carriers at the third moment according to the first information and the third information.

Optionally, the resource unit is N consecutive resource blocks in the same TDD carrier, where N is greater than or equal to 1.

Optionally, the resource unit is a bandwidth part BWP or a subband.

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

The network side device sends first information, and the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; the first frame structure, the first frame structure All time units correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities.

Optionally, the frame structure is suitable for TDD uplink and downlink common configuration or TDD uplink and downlink specific configuration.

Optionally, the first information is used to determine at least two frame structures of a specified cell or a specified resource unit.

Optionally, the first information includes one or more of the following:

subcarrier spacing;

Uplink and/or downlink transmission periods;

Number of uplink and/or downlink time slots;

Number of upstream and/or downstream symbols.

The at least two frame structures meet the requirement that different resource units of the TDD carrier have different frame structures.

Optionally, the frame structure is suitable for TDD uplink and downlink common configuration or TDD uplink and downlink specific configuration.

Optionally, the first information is used to determine at least two frame structures of a specified cell or a specified resource unit.

Optionally, the method also includes:

The network side device sends second information, where the second information indicates: time domain offsets of at least some resource units.

Optionally, at least one resource unit is configured as a third frame structure, the third frame structure sequentially includes: a first part, a second part and a third part, and each time unit in the first part corresponds to uplink transmission opportunity, each time unit in the second part corresponds to a downlink transmission opportunity, and the third part is an interval between downlink transmission opportunities and uplink transmission opportunities.

Optionally, the method also includes:

In the case of supporting configuration of different frame structures for different TDD carriers, the network side device sends third information, where the third information indicates: a time slot offset of the TDD carrier.

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

The first receiving module is configured to receive first information, and the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; a first frame structure, the first All time units in the frame structure correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities.

In a fourth aspect, a transmission device is provided, which is applied to network side equipment, including:

The first sending module is used to send first information, and the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; first frame structure, the first All time units in the frame structure correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities.

In a fifth aspect, a communication device is provided, including: a processor, a memory, and a program stored on the memory and operable on the processor, and when the program is executed by the processor, the first aspect is implemented. Or the steps of the method described in the second aspect.

According to a sixth aspect, a readable storage medium is provided, and a program is stored on the readable storage medium, and when the program is executed by a processor, the steps including the method described in the first aspect or the second aspect are realized.

In this embodiment of the present application, the terminal may determine at least two frame structures according to the first information, where the frame structure includes at least one of the following: TDD uplink and downlink configuration; the first frame structure, and all time units in the first frame structure Corresponding to the downlink transmission opportunity; the second frame structure, all time units in the second frame structure correspond to the uplink transmission opportunity, so that at any time, there are uplink and downlink transmission opportunities, reducing the transmission waiting delay of the air interface, so that The TDD system can achieve the extremely low air interface delay effect of the FDD system.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the application. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

FIG. 1 is a schematic diagram of an existing time delay reduction;

FIG. 2 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable;

FIG. 3 is one of the flowcharts of the transmission method provided by the embodiment of the present application;

FIG. 4 is one of the schematic diagrams of the frame structure provided by the embodiment of the present application;

FIG. 5 is the second schematic diagram of the frame structure provided by the embodiment of the present application;

Fig. 6 is the third schematic diagram of the frame structure provided by the embodiment of the present application;

Figure 7a and Figure 7b are schematic diagrams of existing configurations;

FIG. 8 is a fourth schematic diagram of the frame structure provided by the embodiment of the present application;

FIG. 9 is the second flowchart of the transmission method provided by the embodiment of the present application;

Fig. 10 is one of the schematic diagrams of the transmission device provided by the embodiment of the present application;

Figure 11 is the second schematic diagram of the transmission device provided by the embodiment of the present application;

Fig. 12 is a schematic diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The term "comprising" and any variations thereof in the description and claims of this application are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to the explicit instead of those steps or elements explicitly listed, other steps or elements not explicitly listed or inherent to the process, method, product or apparatus may be included. In addition, the use of "and/or" in the description and claims means at least one of the connected objects, such as A and/or B, means that there are three situations including A alone, B alone, and both A and B.

In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

It is worth pointing out that the technology described in the embodiment of the present application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-A) system, and can 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 (OFDMA) , Single-carrier Frequency-Division Multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. However, the following description describes New Radio (NR) systems for example purposes, and uses NR terminology in most of the following descriptions, although these techniques can also be applied to applications other than NR system applications, such as Gen 6 ( 6th Generation, 6G) communication system.

Among them, in order to reduce the delay of air interface transmission, there are many schemes, including the use of short SR period, uplink pre-scheduling, scheduling-free (indicated by Downlink Control Information (DCI)), semi-persistent scheduling (Semi-Persistent Scheduling, SPS) (can be indicated by Radio Resource Control (RRC) or DCI), 1ms frame structure, self-contained time slot, large subcarrier spacing, etc.

Although the above scheme can reduce the delay to a certain extent in the Time Division Duplex (TDD) system, no matter which scheme reduces the delay effect, it is limited by the uplink and downlink conversion time of the TDD system itself, that is, the uplink transmission opportunity And/or downlink transmission opportunities appear in time divisions, and there is always a probability that there will be a time to wait for the transmission opportunity. This is also the fundamental problem of the bottleneck in the delay optimization of the TDD system compared with the Frequency Division Duplex (FDD) system. The transmission wait The length of time is related to the frame structure.

For FDD systems, generally FDD frequency bands are in the middle and low frequency bands. Standards and hardware equipment limit the subcarrier spacing that can be used (15K, 30K, 60K). Carrier spacing size, but TDD does not have this problem. Therefore, in order to achieve the ultimate air interface delay effect, focus on optimizing the air interface delay of the TDD system.

The TDD full-duplex system can realize the low delay effect of the FDD system, but it is very difficult for the industry to realize it.

Aiming at the problem that the overall delay caused by the uplink and downlink conversion time of the TDD system is too large to meet the service requirements, a frame structure with different bandwidth (Bandwidth Part, BWP)/subband configurations through a TDD carrier is proposed. , the uplink and downlink transmission opportunities between multiple BWP/subbands are complemented by time domain offset, forming a transmission mode similar to FDD carriers, that is, at least one BWP/subband of the current time slot/symbol is an uplink time slot/symbol, at least A BWP/subband is a downlink slot/symbol.

Referring to FIG. 2 , it shows a block diagram of a wireless communication system to which this embodiment of the present application is applicable. The wireless communication system includes a terminal 21 , a terminal 22 and a network side device 23 . Wherein, the terminal can also be called terminal equipment or user equipment (User Equipment, UE), and the terminal can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant ( Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personalcomputer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmentedreality, AR)/virtual reality (virtual reality, VR ) equipment, robots, wearable devices (WearableDevice), vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication functions). It should be noted that, the embodiment of the present application does not limit the specific types of the terminal 21 and the terminal 22 .

The network side device 23 may be a base station or a core network, where a base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (gNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (Transmitting Receiving Point, TRP), wireless access network node or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to the specified technical vocabulary. It should be noted that in this In the embodiment of the application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

Referring to FIG. 3 , the embodiment of the present application provides a transmission method, and the specific steps include: step 301 .

Step 301: The terminal receives first information, and the first information is used to determine at least two frame structures;

Wherein, the frame structure includes one or more of the following:

(1) TDD uplink and downlink configuration (or described as TDD uplink and/or downlink configuration, including TDD uplink and downlink general configuration, TDD uplink and downlink special configuration, that is, TDD-UL-DL-ConfigCommon and TDD-UL-DL in the 3GPP standard -ConfigDedicated);

(2) a first frame structure, where all time units in the first frame structure correspond to downlink transmission opportunities;

Wherein, the first frame structure may correspond to a full downlink frame structure (supplementary Downlink, SDL)

(3) A second frame structure, where all time units in the second frame structure correspond to uplink transmission opportunities.

Wherein, the second frame structure corresponds to a full uplink frame structure (supplementary Uplink, SUL).

It should be noted that the frame structure is not specifically limited in the embodiments of the present application, as long as two BWPs or subbands are basically complementary frame structures (exceptions may exist for individual symbols), such as configuration 1 and configuration 2.

Configuration 1: The frame structure of subband/BWP1 is DSUUU, and the frame structure of subband/BWP2 is DDSUU.

Configuration 2: The frame structure of subband/BWP1 is DDDDDDSUU, and the frame structure of subband/BWP2 is DSUUUUUUUU.

The above "D" means downlink, "U" means uplink, and "S" means special slot (special slot), for example, special slot can include: D symbol, GAP (gap) symbol, U symbol, the special slot is used For uplink and downlink time slot/subframe conversion.

Taking two BWP/subband configuration complementary frame structures as an example, the channel sounding reference signal (Sounding Reference Signal, SRS) transmission opportunities of different BWP/subbands can be at the same time or at different times.

Referring to Figure 4, the frame structure of BWP A is: DSUUUUUUUU, and the frame structure of BWP B is: UUDDDDDDDDS.

Alternatively, based on the frame structure currently supported by the industry, it may also be considered to reserve an uplink transmission opportunity for sending the SRS.

Referring to Figure 5, the frame structure of BWP 1 is: DSUUUUUUUU, and the frame structure of BWP 2 is: UUDDDDDDDDS.

Alternatively, the situation that the uplink and downlink transmission opportunities are completely complementary may also be supported, as shown in FIG. 6 .

The frame structure of BWP 1 is: UUUUUUUUUU, and the frame structure of BWP 2 is: DDDDDDDDDD.

In an embodiment of the present application, the frame structure is suitable for TDD uplink and downlink common configuration or TDD uplink and downlink specific configuration.

In an embodiment of the present application, the first information is used to determine at least two frame structures of a designated cell or a designated resource unit.

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

(1) Subcarrier spacing (SubcarrierSpacing);

(2) Uplink and/or downlink transmission period (dl-UL-TransmissionPeriodicity);

(3) Number of uplink and/or downlink time slots (nrofDownlinkSlots and/or nrofUplinkSlots);

(4) Number of uplink and/or downlink symbols (nrofDownlinkSymbols and/or nrofUplinkSymbols).

In an embodiment of the present application, the resource unit is N consecutive resource blocks in the same TDD carrier, where N is greater than or equal to 1.

Optionally, the resource block includes, but is not limited to: a physical resource block (Physical Resource Block, PRB), a subcarrier, and the like.

In an implementation manner of the present application, the resource unit is a BWP or a subband.

In an implementation manner of the present application, the number of resource units is an integer greater than 1.

In one embodiment of the present application, the method also includes:

The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different resource units in the TDD carrier at the first moment according to the first information.

In one embodiment of the present application, the method also includes:

The terminal receives second information, where the second information indicates: time domain offsets of at least some resource units.

In one embodiment of the present application, the method also includes:

The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different resource units in the TDD carrier at a second moment according to the first information and the second information.

In one embodiment of the present application, at least one resource unit is configured as a third frame structure, the third frame structure includes in sequence: a first part, a second part and a third part, and each of the first parts time units correspond to uplink transmission opportunities, each time unit in the second part corresponds to downlink transmission opportunities, and the third part is an interval between downlink transmission opportunities and uplink transmission opportunities.

In one embodiment of the present application, the method also includes:

In the case of supporting configuration of different frame structures for different TDD carriers, the terminal receives third information, where the third information indicates: a time slot offset of the TDD carrier.

In one embodiment of the present application, the method also includes:

The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different TDD carriers at the third moment according to the first information and the third information.

In the embodiment of this application, multiple BWPs/subbands of a TDD carrier are configured as different frame structures, and the uplink and downlink transmission opportunities between multiple BWPs/subbands are complementary through time domain offset, that is, the current time slot /symbol At least one BWP/subband is an uplink time slot/symbol, and at least one BWP/subband is a downlink time slot/symbol (there may be only uplink or downlink transmission opportunities on individual symbols), so that when business data arrives at any time When the time comes, the downlink or uplink resources will be obtained immediately, reducing the waiting time for uplink and downlink air interface transmission.

At present, in the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) standard, only cell-level and user-level frame structure configurations are supported, and different BWP/subband configuration frame structure parameters of the same carrier are not yet supported, as shown in Figure 7a and Figure 7b shows.

In order to achieve the ultimate delay in the single-carrier scenario, in the embodiment of this application, different BWP/subband configuration complementary frame structures are proposed, and there are two implementation methods as follows:

Method 1. It supports configuring different frame structures for different BWPs/subbands. The frame structure is the frame structure supported by existing standards (in a frame structure, the downlink transmission opportunity is in the front, the GAP is in the middle, and the uplink transmission opportunity is in the back), and Supports time-domain offsets of different BWP/subbands to achieve the effect of complementary frame structures.

Example 1:

For frame structure configuration: Add a new frame structure configuration field in the BWP/subband message unit, and modify the frame structure configuration field description of the cell to the frame structure of the cell or BWP/subband

For time slot offset configuration, different BWPs/subbands can work together in an asynchronous state, and optional time slot offset parameters are configured for BWP/subbands

Taking BWP as an example, the modification of the frame structure and slot offset is as follows:

The description of the frame structure is modified as follows, including cell level or subband level:

The IE TDD-UL-DL-ConfigCommon determines the cell or BWP specific Uplink/Downlink TDD configuration.

Method 2. Different BWPs/subbands configure different frame structures. At least one BWP/subband has a new frame structure, that is, the uplink is in the front, the downlink is in the middle, and the GAP is in the end, such as UUDDDDDDDDS, as shown in Figure 8 Show:

Combined with the standard frame structure of other BWP/subbands (the corresponding frame structure is DSUUUUUUUU), a TDD working mode with complementary uplink and downlink is formed.

In the embodiment of this application, in order to solve the bottleneck problem of reducing the delay in the TDD system (that is, the air interface transmission waiting delay), a scheme of configuring complementary frame structures on different resource units (such as BWP/subbands) is proposed, so that any At any time, there are uplink and downlink transmission opportunities, reducing the transmission waiting delay of the air interface, and achieving the effect of extremely low air interface delay of the FDD system. If the 2.5 millisecond (ms) double-period frame structure configuration is adopted, under the scheduling granularity of enhanced equipment capability CAP2 and 2OS, the air interface transmission waiting delay ratio is 31%-73%. After using the above complementary TDD, the air interface transmission The proportion of waiting delay can be reduced to close to 0.

At the same time, by configuring different frame structures for different BWPs/subbands, the industry only needs to support two fixed frame structure configurations, and can achieve arbitrary uplink and downlink time slot ratios by adjusting the BWP/subband bandwidth to meet customer needs. various business needs.

Finally, the embodiment of the present application does not need to be based on TDD full-duplex mode in the same frequency band, but can be realized based on adjacent frequency full-duplex. Adjacent frequency will bring adjacent channel leakage ratio (Adjacent Channel Leakage Ratio, ACLR) 40dB loss, The impact of adjacent frequency interference is reduced, and the difficulty of industrial implementation is also reduced.

Referring to Figure 9, the embodiment of the present application provides a transmission method, and the specific steps include:

Step 901: The network side device sends first information, the first information is used to determine at least two frame structures, and the frame structures include one or more of the following:

(1) TDD uplink and downlink configuration;

(2) a first frame structure, where all time units in the first frame structure correspond to downlink transmission opportunities;

(3) A second frame structure, where all time units in the second frame structure correspond to uplink transmission opportunities.

In an embodiment of the present application, the frame structure is suitable for TDD uplink and downlink common configuration or TDD uplink and downlink specific configuration.

In an embodiment of the present application, the first information is used to determine at least two frame structures of a designated cell or a designated resource unit.

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

(1) subcarrier spacing;

(2) Uplink and/or downlink transmission period;

(3) Number of uplink and/or downlink time slots;

(4) Number of uplink and/or downlink symbols.

In one embodiment of the present application, the method also includes:

The network side device sends second information, where the second information indicates: time domain offsets of at least some resource units.

In one embodiment of the present application, at least one resource unit is configured as a third frame structure, the third frame structure includes in sequence: a first part, a second part and a third part, and each of the first parts time units correspond to uplink transmission opportunities, each time unit in the second part corresponds to downlink transmission opportunities, and the third part is an interval between downlink transmission opportunities and uplink transmission opportunities.

In one embodiment of the present application, the method also includes:

In the case of supporting configuration of different frame structures for different TDD carriers, the network side device sends third information, where the third information indicates: a time slot offset of the TDD carrier.

In this embodiment of the application, the network side device sends the first information to the terminal, so that the terminal can determine at least two frame structures according to the first information, where the frame structure includes at least one of the following: TDD uplink and downlink configuration; the first frame structure, All time units in the first frame structure correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities, so that at any time, both uplink and downlink transmissions can be realized Opportunity, reducing the transmission waiting delay of the air interface, so that the TDD system can achieve the extremely low air interface delay effect of the FDD system.

Referring to FIG. 10, an embodiment of the present application provides a transmission device, which is applied to a terminal. The device 1000 includes:

The first receiving module 1001 is configured to receive first information, and the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; the first frame structure, the first All time units in one frame structure correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities.

In an embodiment of the present application, the frame structure is suitable for TDD uplink and downlink common configuration or TDD uplink and downlink specific configuration.

In an embodiment of the present application, the first information is used to determine at least two frame structures of a designated cell or a designated resource unit.

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

(1) subcarrier spacing;

(2) Uplink and/or downlink transmission period;

(3) Number of uplink and/or downlink time slots;

(4) Number of uplink and/or downlink symbols.

In an implementation manner of the present application, the at least two frame structures satisfy that: different resource units of the TDD carrier have different frame structures.

In an embodiment of the present application, the resource unit is N consecutive resource blocks in the same TDD carrier, where N is greater than or equal to 1.

Optionally, resource blocks include but are not limited to: PRBs, subcarriers, and so on.

In an implementation manner of the present application, the resource unit is a BWP or a subband.

In an implementation manner of the present application, the number of resource units is an integer greater than 1.

In one embodiment of the present application, the device also includes:

The first determining module is configured to determine uplink transmission opportunities and/or downlink transmission opportunities of different resource units in the TDD carrier at the first moment according to the first information.

In one embodiment of the present application, the device also includes:

The second receiving module is configured to receive second information, where the second information indicates: time domain offsets of at least some resource units.

In one embodiment of the present application, the device also includes:

The second determining module is configured to determine uplink transmission opportunities and/or downlink transmission opportunities of different resource units in the TDD carrier at a second moment according to the first information and the second information.

In one embodiment of the present application, at least one resource unit is configured as a third frame structure, the third frame structure includes in sequence: a first part, a second part and a third part, and each of the first parts time units correspond to uplink transmission opportunities, each time unit in the second part corresponds to downlink transmission opportunities, and the third part is an interval between downlink transmission opportunities and uplink transmission opportunities.

In one embodiment of the present application, the device also includes:

The third receiving module is configured to receive third information in the case of supporting configuration of different frame structures for different TDD carriers, where the third information indicates: a time slot offset of the TDD carrier.

In one embodiment of the present application, the device also includes:

The third determining module is configured to determine uplink transmission opportunities and/or downlink transmission opportunities of different TDD carriers at the third moment according to the first information and the third information.

The device provided by the embodiment of the present application can implement the various processes implemented by the method embodiment shown in FIG. 3 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Referring to FIG. 11 , an embodiment of the present application provides a transmission device, which is applied to a network side device. The device 1100 includes:

The first sending module 1101 is configured to send first information, and the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; the first frame structure, the first All time units in one frame structure correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities.

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

(1) subcarrier spacing;

(2) Uplink and/or downlink transmission period;

(3) Number of uplink and/or downlink time slots;

(4) Number of uplink and/or downlink symbols.

In an embodiment of the present application, the first information is used to determine at least two frame structures of a designated cell or a designated resource unit.

In an implementation manner of the present application, the at least two frame structures satisfy that: different resource units of the TDD carrier have different frame structures.

In one embodiment of the present application, the device also includes:

The second sending module is configured to send second information, where the second information indicates: time domain offsets of at least some resource units.

In one embodiment of the present application, at least one resource unit is configured as a third frame structure, the third frame structure includes in sequence: a first part, a second part and a third part, and each of the first parts time units correspond to uplink transmission opportunities, each time unit in the second part corresponds to downlink transmission opportunities, and the third part is an interval between downlink transmission opportunities and uplink transmission opportunities.

In one embodiment of the present application, the device also includes:

The third sending module is configured to send third information when different frame structures are configured for different TDD carriers, where the third information indicates: a time slot offset of the TDD carrier.

The device provided by the embodiment of the present application can realize each process realized by the method embodiment shown in FIG. 9 and achieve the same technical effect. To avoid repetition, details are not repeated here.

As shown in FIG. 12, the embodiment of the present application also provides a communication device 1200, including a processor 1201, a memory 1202, and a program or instruction stored in the memory 1202 and operable on the processor 1201. The program or instruction When executed by the processor 1201, each process of the above-mentioned method embodiment in FIG. 3 or FIG. 9 is realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by the processor, each process of the above-mentioned method embodiment shown in FIG. 3 or FIG. 9 is implemented. , and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.

Wherein, the processor is the processor in the first communication device or the second communication device described in the foregoing embodiments. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The steps of the methods or algorithms described in connection with the disclosure of this application can be implemented in the form of hardware, or can be implemented in the form of executing software instructions on a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable hard disk, CD-ROM or any other storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and storage medium can be carried in an ASIC. In addition, the ASIC can be carried in the core network interface device. Certainly, the processor and the storage medium may also exist in the core network interface device as discrete components.

Those skilled in the art should be aware that, in the above one or more examples, the functions described in this application may be implemented by hardware, software, firmware or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The specific implementation manners described above have further described the purpose, technical solutions and beneficial effects of the application in detail. It should be understood that the above descriptions are only specific implementation modes of the application and are not intended to limit the scope of the application. Scope of protection: All modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of this application shall be included within the scope of protection of this application.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the embodiment of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if the modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (24)

1. A transmission method, characterized in that, comprising: The terminal receives the first information; Wherein, the first information is used to determine at least two frame structures; The frame structure includes at least one of the following: Time division multiplexing TDD uplink and downlink configuration; A first frame structure, where all time units in the first frame structure correspond to downlink transmission opportunities; A second frame structure, where all time units in the second frame structure correspond to uplink transmission opportunities. 2. The method according to claim 1, wherein the frame structure is suitable for TDD uplink and downlink common configuration or TDD uplink and downlink dedicated configuration. 3. The method according to claim 1, wherein the first information is used to determine at least two frame structures of a designated cell or a designated resource unit. 4. The method according to claim 1, wherein the first information includes one or more of the following: subcarrier spacing; Uplink and/or downlink transmission periods; Number of uplink and/or downlink time slots; Number of upstream and/or downstream symbols. 5. The method according to claim 1, wherein the at least two frame structures meet the requirement that different resource units of the TDD carrier have different frame structures. 6. The method according to claim 1 or 5, characterized in that the method further comprises: The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different resource units in the TDD carrier at the first moment according to the first information. 7. The method according to claim 1, further comprising: The terminal receives second information, where the second information indicates: time domain offsets of at least some resource units. 8. The method according to claim 7, further comprising: The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different resource units in the TDD carrier at a second moment according to the first information and the second information. 9. The method according to claim 3 or 5, wherein at least one resource unit is configured as a third frame structure, the third frame structure sequentially includes: a first part, a second part and a third part, Each time unit in the first part corresponds to an uplink transmission opportunity, each time unit in the second part corresponds to a downlink transmission opportunity, and the third part is an interval between downlink transmission opportunities and uplink transmission opportunities. 10. The method of claim 1, further comprising: In the case of supporting configuration of different frame structures for different TDD carriers, the terminal receives third information, where the third information indicates: a time slot offset of the TDD carrier. 11. The method of claim 10, further comprising: The terminal determines uplink transmission opportunities and/or downlink transmission opportunities of different TDD carriers at the third moment according to the first information and the third information. 12. The method according to claim 5, wherein the resource unit is N consecutive resource blocks in the same TDD carrier, and N is greater than or equal to 1. 13. The method according to claim 5, wherein the resource unit is a bandwidth part (BWP) or a subband. 14. A transmission method, comprising: The network side device sends first information, and the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; the first frame structure, the first frame structure All time units correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities. 15. The method according to claim 14, wherein the first information includes one or more of the following: subcarrier spacing; Uplink and/or downlink transmission periods; Number of uplink and/or downlink time slots; Number of upstream and/or downstream symbols. 16. The method according to claim 14, wherein the first information is used to determine at least two frame structures of a designated cell or a designated resource unit. 17. The method according to claim 14, wherein the at least two frame structures meet the requirement that different resource units of the TDD carrier have different frame structures. 18. The method of claim 14, further comprising: The network side device sends second information, where the second information indicates: time domain offsets of at least some resource units. 19. The method according to claim 16 or 17, wherein at least one resource unit is configured as a third frame structure, the third frame structure sequentially includes: a first part, a second part and a third part, Each time unit in the first part corresponds to an uplink transmission opportunity, each time unit in the second part corresponds to a downlink transmission opportunity, and the third part is an interval between downlink transmission opportunities and uplink transmission opportunities. 20. The method of claim 14, further comprising: In the case of supporting configuration of different frame structures for different TDD carriers, the network side device sends third information, where the third information indicates: a time slot offset of the TDD carrier. 21. A transmission device, applied to a terminal, comprising: The first receiving module is configured to receive first information, and the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; a first frame structure, the first All time units in the frame structure correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities. 22. A transmission device, applied to network side equipment, characterized in that it comprises: The first sending module is used to send first information, and the first information is used to determine at least two frame structures; the frame structure includes at least one of the following: TDD uplink and downlink configuration; first frame structure, the first All time units in the frame structure correspond to downlink transmission opportunities; in the second frame structure, all time units in the second frame structure correspond to uplink transmission opportunities. 23. A communication device, comprising: a processor, a memory, and a program stored on the memory and operable on the processor, when the program is executed by the processor, it can realize the process described in claims 1 to 20 The step of any described method. 24. A readable storage medium, wherein a program is stored on the readable storage medium, and when the program is executed by a processor, the steps comprising the method according to any one of claims 1 to 20 are realized .

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