WO2018059407A1

WO2018059407A1 - Time division multiplexing method and device for scheduling units, information transmission method and device

Info

Publication number: WO2018059407A1
Application number: PCT/CN2017/103521
Authority: WO
Inventors: 苟伟; 毕峰; 郝鹏
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-09-29
Filing date: 2017-09-26
Publication date: 2018-04-05
Also published as: CN107888349A

Abstract

A time division multiplexing method for scheduling units, comprising: when performing scheduling unit multiplexing, a transmission terminal performing processing in the following manner: when multiplexing a second scheduling unit formed by orthogonal frequency division multiplexing (OFDM) symbols at subcarrier intervals of M after a first scheduling unit formed by OFDM symbols at subcarrier intervals of N, or when multiplexing OFDM symbol A at subcarrier intervals of M after a first scheduling unit formed by OFDM symbols at subcarrier intervals of N, determining the ending position of the first scheduling unit to be the starting position of one OFDM symbol sequentially placed in a scheduling period among the OFDM symbols at subcarrier intervals of M, or determining the starting position of the second scheduling unit or symbol A to be the starting position of one OFDM symbol sequentially placed in the scheduling period among the OFDM symbols at subcarrier intervals of M.

Description

Scheduling unit time division multiplexing method and device, information transmission method and device

Technical field

The present application relates to, but is not limited to, the field of communications technology, and more particularly to a scheduling unit time division multiplexing method and apparatus, information transmission method and apparatus.

Background technique

New generation mobile communication system NR (New Radio) is being researched and standardized, which is one of the priorities of the current 3GPP (Third Generation Partnership Project).

Among the currently determinable NR systems, there are three typical types of services in the future, including: eMBB (enhanced Mobile BroadBand), URLLC (Ultra-Reliable and Low Latency Communications), and mMTC ( Massive Machine Type Communications, massive IoT communication). These services have different requirements for delay, coverage and reliability. For example, for eMBB, it mainly emphasizes high peak transmission rate, low latency requirement (no low latency requirement), and medium reliability requirement; for URLLC, emphasis is on low latency and high reliability transmission. The extension requirements are very demanding; for mMTC, a large number of terminals are emphasized, the connection density is high and the transmission coverage is required, and there is almost no requirement for delay.

The NR system will perform system networking on a carrier frequency higher than that used in second generation mobile communication technology (2G), third generation mobile communication technology (3G), and fourth generation mobile communication technology (4G) systems. The frequency bands currently recognized by the industry and recognized by international organizations are mainly 3 GHz to 6 GHz, 6 GHz to 100 GHz, and this frequency band basically belongs to the centimeter band and the millimeter band. Studies have shown that the frequency is between 6GHz and 100GHz, especially at higher frequencies. The phase noise of RF devices is very serious, and the subcarrier width of the Orthogonal Frequency Division Multiple Access system is increased to resist phase noise. The high-frequency propagation characteristics are significantly different from the lower frequency bands. Since the propagation loss of the high frequency band is significantly larger than the low frequency band, the coverage of the high frequency band is generally much smaller than the coverage of the low frequency band, and the coverage of the channel is generally extended with a small coverage. It is also relatively small, and the corresponding coherence bandwidth is larger than the coherent bandwidth of the low frequency band of 300 MHz to 3000 MHz. The subcarrier width can still satisfy the subcarrier spacing in the coherent bandwidth after the increase of the Long Term Evolution (LTE) system. A design requirement. Therefore, the sub-load Sub-carrier spacing (SCS, equivalent to sub-carrier width) needs to be adjusted according to the carrier level, and the feasibility of adjustment is present and reasonable.

The new generation wireless NR system covers the carrier frequency from 6 GHz up to 100 GHz, and needs to use the basic frame structure parameters such as different subcarrier spacing to adapt to the carrier frequency, that is, the frame structure design parameters on each carrier frequency will be different. . For example, the closer the frequency is to the core frequency of LTE, the closer the typical frame structure parameters such as the subcarrier spacing are to the LTE related parameters, and the higher the frequency, the larger the subcarrier spacing. At present, the subcarrier spacing supported by the NR scheme may be from 3.75KHz, 7.5KHz, 15KHz, 30KHz, 60KHz, 75KHz, 120KHz, 240KHz up to 480KHz, etc.

Therefore, in the NR system, there will be a plurality of different subcarrier spacing scheduling units (or called time slots, or transmission units, including a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols. ). Then multiple scheduling units are in one scheduling period (or called a subframe, or called a transmission period) (the scheduling period refers to a larger time range, such as multiple scheduling units (such as time slots) in one scheduling period (such as a subframe) How to perform time division multiplexing transmission within the internal multiplexing) needs to be considered. The OFDM symbol or scheduling unit alignment problem at the time of multiplexing is an important problem to be solved.

Summary of invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the present application provides a scheduling unit time division multiplexing method and device, and an information transmission method and device, which can implement time division multiplexing of multiple different scheduling units in one scheduling period.

In a first aspect, an embodiment of the present application provides a scheduling unit time division multiplexing method, including:

When the transmitting end performs scheduling unit multiplexing, it processes as follows:

When a second scheduling unit composed of OFDM symbols having a subcarrier spacing of M is multiplexed after a first scheduling unit composed of OFDM symbols having a subcarrier spacing of N, or when OFDM symbols having a subcarrier spacing of N are formed When a scheduling unit multiplexes the OFDM symbol A with the subcarrier spacing of M, it is determined that the ending position of the first scheduling unit is the subcarrier spacing of M. The start position of one OFDM symbol placed sequentially in the scheduling period of the OFDM symbol, or determining that the start position of the second scheduling unit or symbol A is an OFDM symbol in which the OFDM symbols with the subcarrier spacing of M are sequentially placed within the scheduling period. Starting position

When there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a duration between the end position of the first scheduling unit and the start position of the symbol A Determining that the duration does not belong to the first scheduling unit or to the second scheduling unit or symbol A, or increases the duration to the first scheduling unit, or increases the duration to The second scheduling unit or symbol A; wherein N is greater than or equal to M.

In an exemplary embodiment, one OFDM symbol in which the OFDM symbols with subcarrier spacing of M are sequentially placed within a scheduling period is a complete OFDM symbol immediately adjacent to an end position of the first scheduling unit.

In an exemplary embodiment, the adding the duration to the first scheduling unit may include: counting the OFDM symbol whose duration is N according to a subcarrier interval into the first scheduling unit.

In an exemplary embodiment, after the adding the duration to the first scheduling unit, the method may further include: the sending end notifying the receiving end of one of the following information by signaling:

The first scheduling unit increases the number of OFDM symbols after the duration;

Adding the number of OFDM symbols corresponding to the duration of the first scheduling unit;

The end position of the first scheduling unit.

In an exemplary embodiment, the sending end notifying the receiving end of the information by using the signaling may include: the sending end sending the information by using downlink control information or a physical downlink control channel (PDCCH).

In an exemplary embodiment, the first scheduling unit and the second scheduling unit are multiplexed in a given scheduling period, or the first scheduling unit and symbol A are multiplexed in a given scheduling period. .

In an exemplary embodiment, the given scheduling period includes an OFDM symbol with reference to a subcarrier spacing, and the number of OFDM symbols is a fixed value.

In an exemplary embodiment, the duration is used for downlink transmission, including for transmitting downlink control The downlink control information includes downlink control information or uplink transmission control information; or the duration is used for uplink transmission, and is used to transmit uplink control information, where the uplink control information includes acknowledgement information (ACK), Non-acknowledgment information (NACK), channel state information (CSI), or sounding reference signal (SRS).

In an exemplary embodiment, the first scheduling unit and the second scheduling unit are both an uplink transmission scheduling unit or a downlink transmission scheduling unit, or one of them is an uplink transmission scheduling unit, and the other is a downlink transmission scheduling unit.

In an exemplary embodiment, the first scheduling unit and the second scheduling unit respectively comprise a plurality of OFDM symbols, wherein the plurality of OFDM symbols comprise at least one of: symbols for transmitting control information, A symbol for transmitting uplink data, a symbol for transmitting downlink data, and a guard symbol for uplink or downlink handover.

In an exemplary embodiment, the values of N and M are one of the following: 3.75 kHz KHz, 7.5 KHz, 15 KHz, 30 KHz, 60 KHz, 120 KHz, 240 KHz, 480 KHz, 75 KHz.

In an exemplary embodiment, the method may further include determining, according to one of the following manners, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing:

Determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: H×2 ^k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and k satisfies the current subcarrier spacing as the reference subcarrier spacing. 2 ^k times;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is one of the following: H×2 ^k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and b satisfies the current subcarrier spacing. Referring to the 2 ^b times of the subcarrier spacing, the value range of k is the same as the value range of b. When b is given, k takes a value less than or equal to b in the value range;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×2 ^k , where Y is a positive integer, and k satisfies the current subcarrier spacing as 2 ^k times the reference subcarrier spacing;

Determining, that the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×L, where Y is a positive integer, and L satisfies that the current subcarrier spacing is L times the reference subcarrier spacing;

The value of H and Y is notified to the receiving end by the transmitting end, or is agreed by the transmitting end and the receiving end.

In a second aspect, the embodiment of the present application further provides an information transmission method, including:

When the sending end and the receiving end agree that the length or the number of symbols of the scheduling unit is a fixed value, or the transmitting end configures the length or the number of symbols of the scheduling unit by signaling, the sending end sends or retransmits the configuration information to the receiving end; The configuration information is used to indicate a length or a symbol number or an end position of the scheduling unit;

Alternatively, when the transmitting end performs the scheduling unit transmission, it is processed as follows:

The sending end agreement or configuration scheduling unit includes F symbols, and adds a number of symbols to the scheduling unit, and the value of the number of allowed symbols is less than:

Positive integer

Wherein, N and M satisfy the following condition: when a scheduling unit composed of orthogonal frequency division multiplexing OFDM symbols with a subcarrier spacing of N transmits a scheduling unit composed of OFDM symbols with a subcarrier spacing of M, or when the subcarrier spacing is N When the scheduling unit formed by the OFDM symbols is multiplexed with the OFDM symbol A with the subcarrier spacing of M, the range of the number of symbols dynamically increased by the previous scheduling unit is: less than

Positive integer,

Indicates rounding down, N is greater than or equal to M.

In an exemplary embodiment, when the sending end sends or retransmits the configuration information to the receiving end, the method may further include: the length or the number of symbols of the scheduling unit indicated by the sending end according to the configuration information. At least one of sending and receiving data is performed.

In an exemplary embodiment, the sending end configuration scheduling unit includes F symbols, and the method includes: the sending end configures, by using radio resource control (RRC) signaling, that the scheduling unit includes F symbols, where F is a positive integer.

In an exemplary embodiment, the configuration information is valid for a predetermined period of time, and the agreed period of time includes one of: within the current scheduling unit, within the current scheduling period.

In an exemplary embodiment, the scheduling unit includes a plurality of OFDM symbols, wherein the plurality of OFDM symbols include one or more of: symbols for transmitting control information, symbols for transmitting uplink data, A symbol for transmitting downlink data, a guard symbol for uplink or downlink handover.

In an exemplary embodiment, the transmitting end sends or retransmits configuration information to the receiving end, including: when the transmitting end performs scheduling unit multiplexing, when the following occurs, the sending end sends configuration information. :

When a first scheduling unit composed of OFDM symbols having a subcarrier spacing of N is used to multiplex a second scheduling unit composed of OFDM symbols with a subcarrier spacing of M, or a first scheduling composed of OFDM symbols with a subcarrier spacing of N When the unit multiplexes the OFDM symbol A with the subcarrier spacing of M, the end position of the first scheduling unit is the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M, or the second scheduling The start position of the unit or symbol A is the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M;

When there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a length of time between the end position of the first scheduling unit and the start position of the symbol A, the duration is increased to a scheduling unit; wherein N is greater than or equal to M.

In an exemplary embodiment, the method may further include determining, according to the manner, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing:

In a third aspect, the embodiment of the present application further provides an information transmission method, including:

After the receiving end and the transmitting end agree that the length or the number of symbols of the scheduling unit is a fixed value, when the receiving end receives the configuration information sent by the sending end, and the configuration information indicates the length or the number of symbols of the scheduling unit, Receiving, by the receiving end, the length, the number of symbols, or the ending position of the scheduling unit according to the configuration information;

Alternatively, the receiving end receives the configuration information sent by the sending end, and determines the length, the number of symbols, or the ending position of the scheduling unit according to the configuration information, where the configuration information indicates the length or the number of symbols of the scheduling unit.

In an exemplary embodiment, the receiving end receives the configuration information sent by the sending end, and determines the length, the number of symbols, or the ending position of the scheduling unit according to the configuration information, including:

When the receiving end receives the first configuration information and the second configuration information sent by the sending end, and the first configuration information and the second configuration information are valid at the same time, the receiving end determines the length and the number of symbols of the scheduling unit according to the second configuration information. Or an end position; wherein the first configuration information and the second configuration information are information indicating a length or a number of symbols of the scheduling unit.

In an exemplary embodiment, the first configuration information is sent by using high layer signaling, or periodically sent by physical layer information, where the period size is predefined, or is notified by higher layer signaling;

The second configuration information is sent by physical layer signaling, or occurs in a scheduling period, and the second configuration information appears at the beginning of each scheduling period, and is used to describe the length of some or all scheduling units in the scheduling period or The number of symbols.

In a fourth aspect, the embodiment of the present application further provides a scheduling unit time division multiplexing device, including:

The first processing unit is configured to perform processing in the following manner when performing scheduling unit multiplexing:

When a first scheduling unit composed of OFDM symbols having a subcarrier spacing of N is used to multiplex a second scheduling unit composed of OFDM symbols with a subcarrier spacing of M, or a first scheduling composed of OFDM symbols with a subcarrier spacing of N When the OFDM symbol A with the subcarrier spacing of M is multiplexed, the end position of the first scheduling unit is determined to be the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M, or The start position of the second scheduling unit or symbol A is the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M;

Determining when there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a length of time between the end position of the first scheduling unit and the start position of the symbol A The duration does not belong to the first scheduling unit or the second scheduling unit or symbol A, or the duration is increased to the first scheduling unit, or the duration is increased to the second scheduling unit or symbol A; Where N is greater than or equal to M.

In an exemplary embodiment, the apparatus may further include: a notification module, configured to notify the receiving end of the following information by signaling after the first processing module increases the duration to the first scheduling unit One:

The end position of the first scheduling unit.

In an exemplary embodiment, the apparatus may further include: a first operation module, configured to determine a number of symbols of the scheduling unit corresponding to the current subcarrier interval according to one of the following manners:

In a fifth aspect, the embodiment of the present application further provides an information transmission apparatus, which is applied to a sending end, and includes:

The first sending module is configured to: when the sending end and the receiving end agree that the length or the number of symbols of the scheduling unit is a fixed value, or the transmitting end configures the length or the number of symbols of the scheduling unit by signaling, sending or resending the configuration information to the a receiving end; wherein the configuration information is used to indicate a length or a symbol number or an ending position of the scheduling unit;

Alternatively, when the second processing module is configured to perform scheduling unit transmission, the processing is performed as follows:

The appointment or configuration scheduling unit includes F symbols, and adds a number of symbols to the scheduling unit, and the value of the number of allowed symbols is less than:

Positive integer

Positive integer,

Indicates rounding down, N is greater than or equal to M.

In an exemplary embodiment, the apparatus may further include: a data transmission module configured to: when the first sending module sends or retransmits configuration information to the receiving end, according to the scheduling unit indicated by the configuration information The length or the number of symbols is at least one of data transmission and reception.

In an exemplary embodiment, the apparatus may further include: a second operation module configured to determine a number of symbols of the scheduling unit corresponding to the current subcarrier spacing according to the following manner:

In a sixth aspect, the embodiment of the present application further provides an information transmission apparatus, which is applied to a receiving end, and includes:

The first receiving module is configured to receive configuration information sent by the sending end after the receiving end and the transmitting end agree that the length or the number of symbols of the scheduling unit is a fixed value;

a first determining module, configured to indicate, in the configuration information, a length or a number of symbols of the scheduling unit Re-determining the length, the number of symbols, or the ending position of the scheduling unit according to the received configuration information;

or,

a second receiving module, configured to receive configuration information sent by the sending end;

And a second determining module, configured to determine a length, a number of symbols, or an ending location of the scheduling unit according to the configuration information, where the configuration information indicates a length or a number of symbols of the scheduling unit.

In an exemplary embodiment, the apparatus may further include: a third operation module configured to determine a number of symbols of the scheduling unit corresponding to the current subcarrier interval according to one of the following manners:

In a seventh aspect, the embodiment of the present application provides a scheduling unit time division multiplexing method, including:

When one or more symbols in a scheduling unit with a subcarrier spacing of N are used as a traffic transmission with a subcarrier spacing of M, one or more OFDM symbols in a scheduling unit with a subcarrier spacing of N are converted into subcarriers. A scheduling unit corresponding to an OFDM symbol of interval M.

In an exemplary embodiment, the scheduling unit with the subcarrier spacing of M may include 2 or 4 symbols.

In an exemplary embodiment, an OFDM symbol with 1 subcarrier spacing of N is converted into 1 scheduling unit, the scheduling unit includes 4 OFDM symbols with subcarrier spacing of M; or an OFDM symbol with one subcarrier spacing of N is rotated. There are two scheduling units, each of which has 2 OFDM symbols with subcarrier spacing of M.

In an exemplary embodiment, an OFDM symbol with 2 subcarrier spacings of N is converted into 2 scheduling units, each scheduling unit includes 4 OFDM symbols with subcarrier spacing of M; or OFDM with 2 subcarriers spaced N The symbol is converted into 4 scheduling units, each of which has 2 OFDM symbols with subcarrier spacing of M.

In an exemplary embodiment, when the base station configures the subcarrier spacing to be M, the OFDM symbol number G included in the corresponding scheduling unit satisfies the following condition: the OFDM symbol with the subcarrier spacing of N can be split into G complete The OFDM symbol with the subcarrier spacing of M, or the OFDM symbols including the G complete subcarrier spacings of N can be aggregated into one OFDM symbol with the subcarrier spacing of M; wherein G is 2 One of 4, 8...2 ⁿ , where n is an integer.

In addition, the embodiment of the present application further provides a computer readable storage medium, where computer executable instructions are executed, and when the computer executable instructions are executed by a processor, the scheduling unit time division multiplexing method of the first aspect or the seventh aspect is implemented. .

The embodiment of the present application further provides a computer readable storage medium storing computer executable instructions that implement the information transmission method of the second aspect when executed by the processor.

The embodiment of the present application further provides a computer readable storage medium storing computer executable instructions that implement the information transmission method of the third aspect when executed by the processor.

In the embodiment of the present application, when the first scheduling unit formed by the OFDM symbol with the subcarrier spacing of N is used to multiplex the second scheduling unit of the OFDM symbol with the subcarrier spacing of M, or when the subcarrier spacing is N, the OFDM symbol is After the first scheduling unit is configured to multiplex the OFDM symbol A with the subcarrier spacing of M, the end position of the first scheduling unit is determined to be the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M Or determining that the start position of the second scheduling unit or symbol A is the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier interval M; when the end position of the first scheduling unit and the second scheduling unit When there is a duration between the start positions, or when there is a length between the end position of the first scheduling unit and the start position of the symbol A, it is determined that the duration is neither the first tone The degree unit does not belong to the second scheduling unit or symbol A, or the time length is increased to the first scheduling unit, or the duration is increased to the second scheduling unit or symbol A; wherein N is greater than or equal to M . The embodiment of the present application provides multiple multiplexing schemes for scheduling units with different subcarrier spacings, which is simple to implement and can maximize symbol alignment, thereby avoiding interference and resource waste.

Other features and advantages of the present application will be set forth in the description which follows. The objectives and other advantages of the present invention can be realized and obtained by the structure of the invention.

BRIEF abstract

1 is a schematic diagram of multiplexing of time slots formed by OFDM symbols of different subcarrier spacings in one subframe;

2 is a schematic diagram of a scheduling unit time division multiplexing method according to an embodiment of the present application;

FIG. 3 is a schematic diagram 1 of an information transmission method according to an embodiment of the present application;

FIG. 4 is a second schematic diagram of an information transmission method according to an embodiment of the present disclosure;

5 is a first time division multiplexing diagram of a time slot composed of OFDM frames with subcarrier spacing of 15 kHz and OFDM symbols with a subcarrier spacing of 30 kHz;

6 is a time division multiplexing diagram 2 of a time slot formed by an OFDM frame with a subcarrier spacing of 15 kHz and an OFDM symbol with a subcarrier spacing of 30 kHz;

7 is a time division multiplexing diagram 3 of a time slot formed by an OFDM frame with a subcarrier spacing of 15 kHz and an OFDM symbol with a subcarrier spacing of 30 kHz; FIG.

FIG. 8 is a schematic diagram of a scheduling unit time division multiplexing apparatus according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram 1 of an information transmission apparatus according to an embodiment of the present application;

FIG. 10 is a second schematic diagram of an information transmission apparatus according to an embodiment of the present application.

Detailed

The embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or order.

The steps illustrated in the flowchart of the figures may be executed in a computer system such as a set of computer executable instructions. Also, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

The OFDM symbol time domain alignment problem of different subcarrier spacings is currently being discussed. For example, the durations of OFDM symbols of different subcarrier spacing (SCS) are different. Generally, the following relationship is considered between the subcarrier spacing and the OFDM symbol duration. : Assuming that the reference subcarrier spacing is k KHz and the corresponding OFDM symbol duration is q ms, then the OFDM symbol duration of (2 ⁿ × k) KHz for the subcarrier spacing is q/2 ⁿ ms, where n is an integer.

In scheduling, in order to avoid interference problems caused by the inability of the boundaries between OFDM symbols to be aligned, OFDM symbol time domain alignment of different subcarrier spacing is required as much as possible.

When the present application multiplexes time slots corresponding to multiple different subcarrier intervals, the corresponding multiplexing rule is designed, so as to minimize the interference caused by the OFDM symbols being misaligned.

It should be noted that the time slot mentioned in this application may also be referred to as a transmission unit or a scheduling unit; the scheduling period may also be referred to as a subframe or a transmission period. In addition, the control signaling corresponding to the time slot formed by the OFDM of the corresponding subcarrier spacing allows different subcarrier spacings to be used. In other words, the data transmission corresponding to the time slot needs to adopt the same subcarrier spacing.

In the present application, OFDM symbols in each slot have the same subcarrier spacing, and different slots use different subcarrier spacing.

Referring to FIG. 1, a schematic diagram of time division multiplexing between time slots formed by OFDM symbols of different subcarrier spacing is shown. Hereinafter, a time slot formed by an OFDM symbol having a subcarrier spacing of 30 kHz (which may be simply referred to as a time slot with an SCS of 30 kHz or a time slot corresponding to a 30 kHz SCS) and a OFDM symbol with a subcarrier spacing of 15 kHz may be simply referred to as The time division multiplexing in which the SCS is a 15KHz time slot or a time slot corresponding to the 15KHz SCS is taken as an example for description. The principle of multiplexing between time slots formed by OFDM symbols of different subcarrier spacings is similar, for example, a time slot composed of OFDM symbols with a subcarrier spacing of 15 kHz and a time slot multiplexing formed by OFDM symbols with a subcarrier spacing of 60 kHz; When the subcarrier spacing is 30KHz, the OFDM symbol is composed of Time slot multiplexing consisting of OFDM symbols with a slot and subcarrier spacing of 60 KHz. The subcarrier spacing involved in the present application may be from the following ranges: 3.75 KHz, 7.5 KHz, 15 KHz, 30 KHz, 60 KHz, 120 KHz, 240 KHz, 480 KHz, 75 KHz. The present application can support slot multiplexing composed of OFDM symbols of any two different subcarrier spacings in the above range, and the principle is the same. It should be noted that the present application is also suitable for time slot time division multiplexing of different subcarrier intervals in subbands of one carrier. For example, when one carrier is divided into two sub-bands, time division multiplexing between time slots formed by OFDM symbols with different sub-carrier spacings in each sub-band also adopts the solution provided by the present application.

The embodiment of the present application provides a new subframe (which may be a subframe corresponding to a reference subcarrier interval), and the subframe is designed as follows: one or more time slots (or a scheduling unit) are included in the subframe. Or a transmission unit, hereinafter described by a time slot), a cyclic prefix (CP) of symbols included in each of the plurality of slots is the same, and subcarrier spacing of symbols in each slot of the plurality of slots is the same The number of symbols included in each time slot of the multiple time slots is the same, and the symbols of each time slot of the multiple time slots use the same CP (note that the first few symbols of the first time slot are CPs) Slightly long, the rest are the same), each time slot of each time slot is equal in length (note that the first few symbols of the first time slot are slightly longer than other time slots, and are longer than other time slots. The gap is equal in length; however, each of the plurality of time slots allows unequal number of symbols to be configured, and the CPs of symbols included in each of the plurality of time slots are allowed to be configured in unequal lengths. The subcarrier spacing of the symbols in each of the plurality of time slots allows for unequal configuration.

The number of time slots included in each subframe allows for unequal configuration. The number of symbols contained in each sub-frame allows for unequal configuration.

FIG. 1 is a schematic diagram of a subframe formed by time slots formed by a plurality of different SCSs. As shown in FIG. 1, the subframe includes a slot formed by an OFDM symbol having an SCS of 30 kHz, a slot formed by an OFDM symbol having an SCS of 60 kHz, and a slot formed by an OFDM symbol having an SCS of 15 kHz. The reference subcarrier spacing is 15 kHz, and each time slot includes 7 OFDM symbols.

An embodiment of the present application provides a scheduling unit time division multiplexing method, which is used to optimize time division multiplexing between scheduling units composed of OFDMs with different subcarrier spacings, so as to avoid resource waste and maximize maintenance during time division multiplexing. Symbol alignment to reduce interference.

As shown in FIG. 2, the scheduling unit time division multiplexing method provided in this embodiment includes:

When the transmitting end performs scheduling unit multiplexing, it processes in the following manner:

A second scheduling unit composed of OFDM symbols having a subcarrier spacing of M is multiplexed after a first scheduling unit composed of OFDM symbols having a subcarrier spacing of N (or may be described as a previous time slot) (or may be described as the latter one) Determining the first scheduling unit when splicing the OFDM symbol A with a subcarrier spacing of M (or may be described as the latter symbol) after the first scheduling unit composed of OFDM symbols having a subcarrier spacing of N End position is the start position of one OFDM symbol in which the OFDM symbols with the subcarrier spacing of M are sequentially placed in the scheduling period, or the OFDM symbol of the second scheduling unit or the starting position of the symbol A is determined to be the subcarrier spacing M in the scheduling period. The starting position of one OFDM symbol placed in order;

When there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a length of time between the end position of the first scheduling unit and the start position of the symbol A, it is determined that the duration does not belong to The first scheduling unit does not belong to the second scheduling unit or symbol A, or the duration is increased to the first scheduling unit, or the duration is increased to the second scheduling unit or symbol A.

In other words, you can do one of the following options:

a. The end position of the previous time slot should be the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M;

b. The start position of the next time slot or the next symbol should be the start position of one OFDM symbol placed sequentially in the scheduling period for the OFDM symbol with the subcarrier spacing M.

When processing according to option b or a, there is a duration between the end position of the current slot and the start position of the next slot, or there is a duration between the end position of the current slot and the start position of the next symbol. There are three ways to handle this duration:

In the first mode, the sender does not belong to the previous time slot or the next time slot or the next symbol;

In the second mode, the sending end increases the duration to the previous time slot;

In the third mode, the sender increases the duration to the next time slot or the next symbol.

Where N is greater than or equal to M.

In this embodiment, the transmitting end includes a base station or a transmitting node end. The base station can be time-division multiplexed according to the requirements of the transmission service, such as URLLC and eMBB, and the subcarrier spacing of these services is required. Differentiating, the base station schedules time slots corresponding to two services for data transmission according to transmission requirements.

In options a and b, the OFDM symbol whose subcarrier spacing is M is sequentially placed within one scheduling period, and may be a complete OFDM symbol immediately adjacent to the end position of the previous slot.

In the second mode, the duration is increased to the previous time slot, and the OFDM symbol with the subcarrier spacing of N is still included in the previous time slot. At this time, the OFDM symbol is added corresponding to the previous slot.

In the second mode, the transmitting end (for example, the base station) notifies the receiving end (for example, the terminal) of one of the following information by signaling: the previous time slot increases the number of OFDM symbols after the duration, that is, the OFDM symbol of the previous time slot is increased to How many; the number of OFDM symbols corresponding to the duration of the previous time slot, that is, the number of OFDM symbols of the previous time slot is increased; the end position of the previous time slot (due to the length of the time slot or the number of symbols included) A change has occurred, so the end position of the time slot will also change). Exemplarily, the base station sends the information notification terminal by using downlink control information or a Physical Downlink Control Channel (PDCCH).

In this embodiment, two scheduling units (ie, the foregoing first scheduling unit and the second scheduling unit) are multiplexed in a given scheduling period, or the first scheduling unit and symbol A are in a given scheduling period. Reuse within. Wherein, the given scheduling period includes OFDM symbols with reference subcarrier spacing, and the number of OFDM symbols is a fixed value.

In the first manner, the duration may be used for downlink transmission, and is used to transmit downlink control information, where the downlink control information includes downlink transmission control information or uplink transmission control information. Alternatively, in the first mode, the duration may be used for uplink transmission, including for transmitting uplink control information (UCI, Uplink Control Information), where the uplink control information includes acknowledgement information (ACK), non-acknowledgement information (NACK), Channel State Information (CSI) or Sounding Reference Signal (SRS).

The previous time slot and the latter time slot may both be uplink transmission time slots or both downlink transmission time slots, or one of them is an uplink transmission time slot and the other is a downlink transmission time slot.

The time slot includes a plurality of OFDM symbols, wherein the plurality of OFDM symbols include at least one of: a symbol for transmitting control information, a symbol for transmitting uplink data, a symbol for transmitting downlink data, A protection symbol that switches between uplink or downlink.

The values of N and M may be one of the following: 3.75 KHz, 7.5 KHz, 15 KHz, 30 KHz, 60 KHz, 120 KHz, 240 KHz, 480 KHz, 75 KHz.

In this embodiment, the scheduling unit time division multiplexing method may further include: determining, according to one of the following manners, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing:

As shown in FIG. 3, the embodiment of the present application further provides an information transmission method, including:

When the sending end and the receiving end agree that the length or the number of symbols of the scheduling unit is a fixed value, or the transmitting end configures the length or the number of symbols of the scheduling unit by signaling, the sending end sends or retransmits the configuration information to the receiving end; The configuration information is used to indicate the length or the number of symbols or the end position of the scheduling unit;

Positive integer

Wherein, N and M satisfy a condition that a scheduling unit composed of OFDM symbols with a subcarrier spacing of N (or may be described as a previous slot) and a scheduling unit configured by transmitting OFDM symbols with a subcarrier spacing of M (or may be described as When the latter slot) or the OFDM symbol A with a subcarrier spacing of M (or can be described as the latter symbol) after the scheduling unit composed of OFDM symbols with a subcarrier spacing of N, the previous scheduling unit dynamically increases The range of symbols is: less than

Positive integer,

Indicates rounding down, N is greater than or equal to M.

In this embodiment, when the sending end sends or retransmits the configuration information to the receiving end, the information transmitting method may further include: sending, by the sending end, at least the data of the scheduling unit length or the number of symbols indicated by the configuration information. One.

The transmitting end configuration scheduling unit includes F symbols, and the method includes: the transmitting end configures, by using a radio resource control (RRC) signaling, that the scheduling unit includes F symbols, where F is a positive integer.

The configuration information is valid for the agreed time period. The agreed time period may include one of the following: within the current scheduling unit, within the current scheduling period.

The scheduling unit includes a plurality of OFDM symbols, wherein the plurality of OFDM symbols include one or more of the following symbols: symbols for transmitting control information, symbols for transmitting uplink data, and symbols for transmitting downlink data. , protection symbol for uplink or downlink switching.

The transmitting end sends or retransmits the configuration information to the receiving end, and may include: when the transmitting end performs the scheduling unit multiplexing, when the following occurs, the sending end sends the configuration information:

a second scheduling unit composed of OFDM symbols having a subcarrier spacing of M (or may be referred to as the latter one) after a first scheduling unit (or may be referred to as a previous slot) composed of OFDM symbols having a subcarrier spacing of N End of the first scheduling unit when the OFDM symbol A (or may be referred to as the next symbol) with the subcarrier spacing of M is multiplexed after the first scheduling unit composed of OFDM symbols with the subcarrier spacing of N The position is the start position of one OFDM symbol in which the OFDM symbols with the subcarrier spacing of M are sequentially placed in the scheduling period, or the starting position of the second scheduling unit or symbol A is the order of the OFDM symbols with the subcarrier spacing of M in the scheduling period. The starting position of an OFDM symbol placed;

When there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a length of time between the end position of the first scheduling unit and the start position of the symbol A, the duration is increased to the first time. Scheduling unit. Where N is greater than or equal to M.

Wherein, the values of N and M may be one of the following: 3.75KHz, 7.5KHz, 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, 480KHz, 75KHz.

In this embodiment, the information transmission method may further include: determining, according to one of the following manners, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing:

As shown in FIG. 4, the embodiment of the present application further provides an information transmission method, including:

When the receiving end and the transmitting end agree that the length or the number of symbols of the scheduling unit is a fixed value (for example, after being agreed in advance or fixed by the standard), the configuration information sent by the transmitting end is received at the receiving end, and the configuration information indicates scheduling. When the length or the number of symbols of the unit, the receiving end re-determines the length, the number of symbols, or the ending position of the scheduling unit according to the configuration information;

The transmitting end is, for example, a base station.

The configuration information is valid within an agreed time period, and the agreed time period includes one of the following: within the current scheduling unit and within the current scheduling period.

The scheduling unit includes a plurality of OFDM symbols, wherein the plurality of OFDM symbols includes One or more of the following symbols: a symbol for transmitting control information, a symbol for transmitting uplink data, a symbol for transmitting downlink data, and a guard symbol for uplink or downlink handover.

The receiving end receives the configuration information sent by the sending end, and determines the length, the number of symbols, or the ending position of the scheduling unit according to the configuration information, including:

When the receiving end receives the first configuration information and the second configuration information sent by the sending end, and the first configuration information and the second configuration information are valid at the same time, the receiving end determines the length, the number of symbols, or the end of the scheduling unit according to the second configuration information. The location, that is, the first configuration information is considered invalid for the corresponding scheduling unit indicated by the second configuration information. The first configuration information and the second configuration information are information indicating a length or a number of symbols of the scheduling unit.

Exemplarily, the first configuration information is sent by the high layer signaling, or is periodically sent by the physical layer information, where the period size is predefined, or is notified by the high layer signaling; the second configuration information is sent by the physical layer signaling. Transmit, or appear in the scheduling period size, the second configuration information appears at the beginning of each scheduling period, used to describe the length or number of symbols of some or all of the scheduling units in the scheduling period.

Wherein, the value of H and Y is notified by the transmitting end to the receiving end, or is determined by the transmitting end and the receiving end. set.

According to the scheduling unit time division multiplexing scheme provided by the embodiment of the present application, time slot multiplexing consisting of OFDM symbols with 15 kHz subcarrier spacing and OFDM symbols with 30 kHz subcarrier spacing are taken as an example. The same method can be used for slot multiplexing of other different subcarrier spacings. For example, a time slot composed of OFDM symbols of 15 KHz subcarrier spacing and time division multiplexing of OFDM symbols separated by 60 KHz subcarriers, a time slot composed of OFDM symbols separated by 15 KHz subcarriers, and OFDM separated by 30 KHz subcarriers The difference of the slotted time division multiplexing is as follows: According to the first mode in the solution of the present application, the above two cases have no difference; according to the second mode in the solution of the present application, the difference lies in the OFDM symbol of the 60KHz subcarrier spacing. The number of symbols in a time slot may be increased by one or two or three. Since the OFDM symbol duration of one 15KHz subcarrier spacing is equal to the OFDM symbol duration of four 60KHz subcarrier spacings, the number of slot symbols formed by the OFDM symbols of the 60KHz subcarrier spacing may be increased by one or two or three (ie, less than a positive integer of 4). That is, when the time slot (denoted as the previous time slot) of the OFDM symbols of the N KHz subcarrier spacing is multiplexed with the time slot formed by the OFDM symbols of the M KHz subcarrier spacing (or when the subcarrier spacing is N) When a time slot (hereinafter referred to as a previous time slot) formed by an OFDM symbol is multiplexed with an OFDM symbol having a subcarrier spacing of M), the number of symbols that may be added in the previous time slot is: less than

Positive integer,

Indicates rounding down. N is greater than or equal to M.

The details are explained below by means of a plurality of embodiments.

Embodiment 1

Referring to FIG. 5, when time slots of a plurality of different SCSs are time-division multiplexed (in one scheduling period), the time slots of each SCS are time slots as the starting point of the time slot according to the OFDM symbol placement position in the scheduling period. Reuse.

Alternatively, when a time slot (denoted as the previous time slot) in which the subcarrier spacing is M is multiplexed after the time slot (denoted as the previous time slot) of the OFDM symbols having the subcarrier spacing of N (referred to as the latter time slot) (or When the OFDM symbol with the subcarrier spacing of M is multiplexed after the time slot of the OFDM symbol with the subcarrier spacing of N (indicated as the latter symbol), the starting position of the latter time slot (or the next symbol) should be the child. The start position of one OFDM symbol placed sequentially in the scheduling period of the OFDM symbol with the carrier spacing M, and the duration before the start position and after the previous time slot is counted as An independent resource that is not counted in the previous time slot. Where N is greater than or equal to M.

For example, a time slot with a subcarrier spacing (SCS) of 15 kHz and a time slot with a SCS of 30 kHz are time division multiplexed. At this time, a time slot with an SCS of 30 kHz starts from the boundary of the scheduling period, and the OFDM symbol duration corresponding to the SCS is 30 kHz. Arranged sequentially in the scheduling period, the first 7 symbols are intercepted (here, 7 OFDM symbols are assumed to be one slot) as one slot. After the base station wants to send a time slot with an SCS of 15 kHz, the base station sequentially places the OFDM symbols corresponding to the 15 kHz SCS in the scheduling period, and intercepts the 7 complete symbols after the previous time slot as the time slot corresponding to the 15 kHz SCS. At this time, although the OFDM symbol corresponding to the SCS of 30 kHz between the slot with the SCS of 30 kHz and the slot with the SCS of 15 kHz is wasted, this method is simple, and it is easy to implement more symbol alignment (interval with the reference subcarrier) OFDM symbol alignment) to avoid interference.

For the time division multiplexing of other SCS (such as 3.75KHz, 7.5KHz, 15KHz, 30KHz, 60KHz, 75KHz, 120KHz, 240KHz, 480KHz) time slots, the principle is the same, and will not be described here.

Embodiment 2

Referring to FIG. 6, compared with the first embodiment, in this embodiment, the waste OFDM symbol of Embodiment 1 is added to the previous time slot, that is, the number of OFDM symbols of the previous time slot is increased. The base station is capable of dynamically indicating the number of symbols in the time slot.

Alternatively, the slot multiplexing mode in this embodiment may be described as: when time slot multiplexing of different SCSs is performed, when two time slots are sequentially placed in a given scheduling period according to respective OFDM symbol durations, if two times There is a duration between the slots that is not used, and the duration is converted into an OFDM symbol according to the SCS of the previous slot, and is counted in the previous slot.

Alternatively, the slot multiplexing mode in this embodiment may be described as: multiplexing a OFDM symbol with a subcarrier spacing of M after a time slot (denoted as the previous time slot) of OFDM symbols with a subcarrier spacing of N When the time slot (denoted as the next time slot) (or when the OFDM symbol with the subcarrier spacing of M is multiplexed after the time slot of the OFDM symbol with the subcarrier spacing of N (denoted as the next symbol), the previous one The end position of the time slot is the start position of one OFDM symbol sequentially placed in the OFDM symbol with the subcarrier interval M in a given scheduling period, or the start position of the latter time slot (or the next symbol) is the subcarrier interval. M OFDM symbol in scheduling period The start position of one OFDM symbol placed in order, and the duration before the start position is counted as the previous time slot. Where N is greater than or equal to M.

For example, the SCS is a 15KHz time slot and the SCS is 30KHz time slot time division multiplexing. At this time, the SCS is 30KHz time slot starting from the boundary of the scheduling period, and the OFDM symbol duration corresponding to the SCS is 30KHz is in the scheduling period. Place, intercept the first 8 symbols (here assuming the standard time slot is 7 OFDM symbols, this time slot is 8 symbols) as a time slot. After the base station wants to send a time slot with an SCS of 15 kHz, the base station sequentially places the OFDM symbols corresponding to the 15 kHz SCS in the scheduling period, and intercepts the 7 complete symbols after the previous time slot as the time slot corresponding to the 15 kHz SCS. At this time, the portion of the SCS that is more than 7 OFDM symbols of the 30KHz slot is composed of the time slot between the SSC 30KHz slot and the SCS 15KHz slot. This method does not waste resources, but the slot includes The number of OFDM symbols can be changed, and the base station needs to indicate to the terminal (UE, User Equipment) the number of symbols or the end position included in the time slot.

Embodiment 3

Referring to FIG. 7, when a time slot (denoted as the previous time slot) in which the subcarrier spacing is M is multiplexed with a time slot (referred to as the latter time slot) of OFDM symbols having a subcarrier spacing of M, (or when the OFDM symbol (denoted as the next symbol) with the subcarrier spacing of M is multiplexed after the time slot of the OFDM symbol with the subcarrier spacing of N, the end position of the previous time slot is taken as the next time slot (or The start position of the latter symbol is used for time division time division multiplexing. Where N is not equal to M.

For example, the SCS is a 15KHz time slot and the SCS is 30KHz time slot time division multiplexing. At this time, the SCS is 30KHz time slot starting from the boundary of the scheduling period, and the OFDM symbol duration corresponding to the SCS is 30KHz is in the scheduling period. Place, intercept the first 7 symbols (here, 7 OFDM symbols are assumed to be one slot) as one slot. After the base station wants to send a time slot with an SCS of 15 kHz, the base station sequentially places the OFDM symbols corresponding to the 15 Hz SCS in the scheduling period from the end position of the previous time slot, and intercepts the 7 complete symbols after the previous time slot. It is a time slot corresponding to the 15KHz SCS. At this time, resources are not wasted, but many symbols of the latter slot are not aligned with the OFDM symbols of the reference subcarrier spacing.

Embodiment 4

It is assumed that the base station configures a reference subcarrier spacing, the reference subcarrier spacing is 15 kHz, and the subframe corresponding to the reference subcarrier spacing includes 14 OFDM symbols (the first symbol is slightly longer due to the longer CP, other symbol lengths) Equal), the slot contains 7 OFDM symbols.

For other subcarrier spacings, for example, when the subcarrier spacing is 30 kHz, the number of symbols included in the time slot corresponding to the subcarrier spacing may be: H×2 ^k OFDM symbols. Where H is the number of symbols of the time slot formed by the OFDM symbols generated by the reference subcarrier spacing. k satisfies the current subcarrier spacing as 2 ^k times the reference subcarrier spacing. Thus, assuming that the slot corresponding to the reference subcarrier interval contains 7 symbols, the slot corresponding to the 30KHz subcarrier spacing includes 7×2 ^k (k=1) symbols (this symbol is a 30KHz subcarrier spacing).

Based on the above ideas and assumptions, the number of improved slot symbols can be configured as multiple possible values, and the values satisfy 7×2 ^k . The maximum value of k satisfies the current subcarrier spacing, which is the reference subcarrier spacing. 2 ^k times. k makes 7 × 2 ^k take an integer. In this case, the number of symbols in the time slot may be multiple values, and the base station may perform configuration as needed. This modification may be equivalent to the following description: under the current subcarrier spacing, the number of symbols of the corresponding subcarrier spacing is one of the following: H×2 ^k , where H is the reference subcarrier spacing generation The number of symbols of the time slot formed by the OFDM symbol. b satisfies the current subcarrier spacing as 2 ^b times the reference subcarrier spacing. The value range of k is the same as the value range of b. When b is given, k takes a value less than or equal to b in the value range.

The base station can configure the reference subcarrier spacing to be cell level (that is, the reference subcarrier spacing configured by the UE of the same cell is the same), or the UE level (the UE of the same cell can configure different (or partially identical) reference subcarrier spacings), or Beam level (the reference subcarrier spacing of the UE configuration in the same beam is the same).

Embodiment 5

For other subcarrier spacings, for example, a slot having a subcarrier spacing of 30 KHz includes the number of symbols: Y × 2 ^k OFDM symbols. Where Y is a positive integer, and the value of Y is configured by the base station or pre-agreed as a fixed value. k satisfies the current subcarrier spacing as 2 ^k times the reference subcarrier spacing. Thus, a time slot using a 30 KHz subcarrier spacing contains Y x 2 ^k (k = 1) symbols (this symbol is a 30 KHz subcarrier spacing). If the value of the base station configuration Y is 4, the time slot of the 30KHz subcarrier interval contains 8 symbols. In this case, the number of symbols of the time slot may be multiple values, and the base station may configure according to requirements, so that the time slot is aligned with the OFDM symbol of the reference subcarrier spacing.

Embodiment 6

For other subcarrier spacings, for example, a slot having a subcarrier spacing of 30 KHz includes the number of symbols: Y×L OFDM symbols. Where Y is a positive integer, and the value of Y is configured by the base station or pre-agreed as a fixed value. L satisfies the current subcarrier spacing as L times the reference subcarrier spacing. Thus, a time slot using a 30 KHz subcarrier spacing contains Y x L (L = 2) symbols (this symbol is a 30 KHz subcarrier spacing). If the value of the base station configuration Y is 4, the time slot corresponding to the 30KHz subcarrier interval includes 8 symbols. In this case, the number of symbols in the time slot may be a plurality of values, and the base station may perform configuration as needed to facilitate alignment of the OFDM symbols corresponding to the slot of the reference subcarrier.

Example 7

It is assumed that the base station and the terminal (UE) agree that the base station can configure the number of symbols of the time slot. If the signaling of the number of time slot symbols received by the UE is empty, the UE follows the time slot symbol agreed with the base station or the default time slot. The number is determined by the number of slots, and data is received or transmitted. If the UE receives the signaling of the number of slot symbols, the UE estimates the number of slot symbols according to the rules agreed with the base station. The specific agreed rules can be referred to the fourth, fifth and sixth embodiments, and therefore will not be further described herein.

Example eight

This embodiment provides a new slot definition and a manner of slot multiplexing based on the definition.

In order to adapt to the transmission of low latency, high reliability, and bursty URLLC services, the number of symbols included in the defined slot is two or four. Generally, in order to meet the low latency requirement, the transmission is performed with a larger subcarrier spacing (relative to the reference subcarrier spacing of 15 KHz), for example, a subcarrier spacing greater than or equal to 60 KHz.

In a 5G system, due to the coexistence of multiple service requirements, the time slots of multiple subcarriers are coexisted. In this case, there is a problem of how to multiplex these time slots.

In a 15KHz SCS time slot, for example, including 7 15KHz SCS symbols, in which certain symbols are used for other subcarrier spacing (eg, 60KHz SCS) for larger traffic transmissions, at this time, other The number of symbols in the slot corresponding to the SCS is two. In this case, one 15KHz or two (or an integer) 15KHz OFDM symbols can be converted into OFDM symbols corresponding to other carrier intervals in the 15KHz SCS corresponding slot. Time slot. For example, an OFDM symbol of one 15 kHz SCS is converted into one slot, wherein the slot has four OFDM symbols corresponding to 60 KHz SCS. Or, converting one OFDM symbol of 15 KHz SCS into two concatenated time slots, wherein each time slot has two OFDM symbols corresponding to 60 KHz SCS.

For another example, two OFDM symbols of 15 KHz SCS are converted into two slots, and the slots may be cascaded, wherein each slot has four OFDM symbols corresponding to 60 KHz SCS. Or, two 15KHz OFDM symbols are converted into four time slots, and the time slots may be cascaded, wherein each time slot has two 60KHz SCS corresponding OFDM symbols.

This makes it easy to align to the symbol boundary of the 15KHz SCS for nesting or overlapping multiplexing of 15KHz SCS slots and 60KHz SCS slots, thereby reducing interference.

In the above example, the base station should be configured, and the number of symbols G included in the slots corresponding to the other subcarrier intervals satisfies the following condition: the OFDM symbols of one reference subcarrier interval can be split into G (for example, G is 2, 4, One of 8...2 ⁿ , n is an integer) complete OFDM symbol of other subcarrier spacing, or includes G (for example, G is one of 2, 4, 8...2 ⁿ , n is an integer) complete reference The subcarrier spaced OFDM symbols can be aggregated into one OFDM symbol of other subcarrier spacing. In this way, a time slot corresponding to another subcarrier interval, or a plurality of other subcarrier spacing time domain cascades, can be aligned to an OFDM symbol boundary corresponding to a reference subcarrier interval, or a boundary of a time slot corresponding to the reference subcarrier interval. Or refer to the boundary of the subframe corresponding to the subcarrier spacing.

This defined manner is easy to implement OFDM symbol alignment of different subcarrier spacings when time slots or symbols of different subcarrier intervals are time-division multiplexed, thereby reducing interference.

In the present application, the technical features in the above embodiments can be used in combination in one embodiment without conflict. Each embodiment is merely an exemplary embodiment of the present application.

As shown in FIG. 8, the embodiment of the present application further provides a scheduling unit time division multiplexing device, which is applied to a transmitting end, and the scheduling unit time division multiplexing device includes:

The first processing unit 801 is configured to perform processing in the following manner when performing scheduling unit multiplexing:

When there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a length of time between the end position of the first scheduling unit and the start position of the symbol A, determining the duration Does not belong to the first scheduling unit does not belong to the second scheduling unit or symbol A, or the duration is increased to the first scheduling unit, or the duration is increased to the second scheduling unit or symbol A;

Where N is greater than or equal to M.

The OFDM symbol in which the OFDM symbols with the subcarrier spacing of M are sequentially placed in the scheduling period is a complete OFDM symbol in the immediate vicinity of the ending position of the first scheduling unit.

The first processing module 801 may be configured to add the duration to the first scheduling unit by counting the OFDM symbols whose duration is N according to the subcarrier spacing into the first scheduling unit.

In some implementations, the scheduling unit time division multiplexing apparatus may further include: a notification module 802, configured to notify the receiving end of one of the following information by signaling after the first processing module increases the duration to the first scheduling unit. :

Increasing the number of OFDM symbols corresponding to the duration of the first scheduling unit;

The end position of the first scheduling unit.

The notification module 802 can be configured to notify the receiving end by using signaling in the following manner: the information is sent by using downlink control information or a physical downlink control channel (PDCCH).

The first scheduling unit and the second scheduling unit are multiplexed in a given scheduling period, or the first scheduling unit and the symbol A are multiplexed in a given scheduling period. The given scheduling period includes an OFDM symbol with reference to a subcarrier spacing, and the number of OFDM symbols is a fixed value.

The duration may be used for downlink transmission, and is used to transmit downlink control information, where the downlink control information includes downlink transmission control information or uplink transmission control information; or the duration may be used for uplink transmission, including The uplink control information is transmitted, and the uplink control information includes an ACK, a NACK, a CSI, or an SRS.

The first scheduling unit and the second scheduling unit are both an uplink transmission scheduling unit or a downlink transmission scheduling unit, or one of them is an uplink transmission scheduling unit, and the other is a downlink transmission scheduling unit. The first scheduling unit and the second scheduling unit respectively comprise a plurality of OFDM symbols, wherein the plurality of OFDM symbols comprise at least one of: symbols for transmitting control information, symbols for transmitting uplink data, for transmission The symbol of the downlink data, the protection symbol used for the uplink or downlink handover.

Wherein, the values of N and M are as follows: 3.75 KHz, 7.5 KHz, 15 KHz, 30 KHz, 60 KHz, 120 KHz, 240 KHz, 480 KHz, 75 KHz.

The scheduling unit time division multiplexing device may further include: a first operation module 803, configured to determine, according to one of the following manners, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing:

As shown in FIG. 9, the embodiment of the present application further provides an information transmission apparatus, which is applied to a transmitting end, and includes:

The first sending module 901 is configured to: when the sending end and the receiving end agree that the length or the number of symbols of the scheduling unit is a fixed value, or the sending end configures the length or the number of symbols of the scheduling unit by signaling, sending or resending the configuration information to the a receiving end; wherein the configuration information is used to indicate a length or a symbol number or an ending position of the scheduling unit;

Alternatively, when the second processing module 902 is configured to perform scheduling unit transmission, the processing is performed as follows:

Positive integer

Wherein, N and M satisfy the following conditions: when a scheduling unit composed of OFDM symbols with a subcarrier spacing of N transmits a scheduling unit composed of OFDM symbols with a subcarrier spacing of M, or a scheduling composed of OFDM symbols with a subcarrier spacing of N When the OFDM symbol A with the subcarrier spacing of M is multiplexed after the unit, the range of the number of symbols dynamically added by the previous scheduling unit is: less than

Positive integer,

Indicates rounding down, N is greater than or equal to M.

The information transmission device may further include: a data transmission module 903 configured to length or a symbol of the scheduling unit indicated by the configuration information when the first sending module 901 sends or retransmits configuration information to the receiving end The quantity performs at least one of data transmission and reception.

Exemplarily, the second processing module 902 may configure, by using RRC signaling, that the scheduling unit includes F symbols, and F is a positive integer.

The scheduling unit includes a plurality of OFDM symbols, where the multiple OFDM symbols include one or more of the following symbols: a symbol for transmitting control information, a symbol for transmitting uplink data, and used for transmitting downlink data. Symbol, protection symbol for upstream or downstream switching.

The first sending module 901 may be configured to send configuration information when the scheduling unit performs multiplexing in the sending end, when the following occurs:

The information transmission apparatus may further include: a second operation module 904, configured to determine, according to the following manner, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing:

As shown in FIG. 10, the embodiment of the present application further provides an information transmission apparatus, which is applied to a receiving end, and includes:

The first receiving module 1001 is configured to receive configuration information sent by the sending end after the receiving end and the transmitting end agree that the length or the number of symbols of the scheduling unit is a fixed value;

The first determining module 1002 is configured to, when the configuration information indicates the length or the number of symbols of the scheduling unit, re-determine the length, the number of symbols, or the end position of the scheduling unit according to the received configuration information;

or,

The second receiving module 1003 is configured to receive configuration information sent by the sending end.

The second determining module 1004 is configured to determine a length, a number of symbols, or an ending location of the scheduling unit according to the configuration information, where the configuration information indicates a length or a number of symbols of the scheduling unit.

The first determining module 1002 or the second determining module 1004 may be configured to determine the length, the number of symbols, or the ending position of the scheduling unit according to the received configuration information by:

When the first configuration information and the second configuration information sent by the sending end are received, and the first configuration information and the second configuration information are valid at the same time, determining the length, the number of symbols, or the ending position of the scheduling unit according to the second configuration information; The first configuration information and the second configuration information are information indicating the length or the number of symbols of the scheduling unit.

Exemplarily, the first configuration information is sent by using high layer signaling, or periodically sent by physical layer information, where the period size is predefined, or is notified by higher layer signaling; the second configuration information is physics. Layer signaling is sent, or occurs in a scheduling period size, and the second configuration information appears at the beginning of each scheduling period to describe the length or number of symbols of some or all of the scheduling units in the scheduling period.

The information transmission apparatus may further include: a third operation module 1005 configured to determine, according to one of the following manners, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing:

For the implementation of the above device, reference may be made to the foregoing method embodiments, and thus no further details are provided herein.

In addition, an embodiment of the present application further provides an electronic device, including a processor, and storing the The processor can execute the memory of the instruction, when the instruction is executed by the processor, performing the following operations:

When performing scheduling unit multiplexing, it is processed as follows:

When there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a length of time between the end position of the first scheduling unit and the start position of the symbol A, it is determined that the duration does not belong to The first scheduling unit does not belong to the second scheduling unit or symbol A, or increases the duration to the first scheduling unit, or increases the duration to the second scheduling unit or symbol A; where N is greater than or greater than Equal to M (N is also less than M).

In addition, an embodiment of the present application further provides an electronic device, including a processor and a memory storing the processor executable instructions, when the instructions are executed by the processor, performing the following operations:

When the sending end and the receiving end agree that the length or the number of symbols of the scheduling unit is a fixed value, or the transmitting end configures the length or the number of symbols of the scheduling unit by signaling, sending or resending configuration information to the receiving end; The configuration information is used to indicate the length or the number of symbols or the end position of the scheduling unit;

Alternatively, when performing scheduling unit transmission, proceed as follows:

Positive integer

Positive integer,

Indicates rounding down, N is greater than or equal to M.

After the receiving end and the transmitting end agree that the length or the number of symbols of the scheduling unit is a fixed value, when receiving the configuration information sent by the sending end, and the configuration information indicates the length or the number of symbols of the scheduling unit, according to the configuration information, Determining a length, a number of symbols, or an ending position of the scheduling unit;

Or receiving configuration information sent by the sending end, determining a length, a number of symbols, or an ending position of the scheduling unit according to the configuration information, where the configuration information indicates a length or a number of symbols of the scheduling unit.

In addition, the embodiment of the present application further provides a computer readable storage medium, where computer executable instructions are stored, and the computer executable instructions are executed by a processor to implement the scheduling unit time division multiplexing method.

The embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, which are implemented by a processor to implement an information transmission method applied to a transmitting end.

The embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, which are implemented by a processor to implement an information transmission method applied to a receiving end.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks or units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules or units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, Flash or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic box, magnetic tape, disk storage or other magnetic storage device, or any that can be used to store desired information and be accessible by a computer Other media. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

The embodiments disclosed in the present application are as described above, but the description is only for the purpose of understanding the present application, and is not intended to limit the present application. Any modifications and changes in the form and details of the embodiments may be made by those skilled in the art without departing from the spirit and scope of the disclosure. The scope defined by the appended claims shall prevail.

Industrial applicability

The embodiment of the present application provides a scheduling unit time division multiplexing method and device, an information transmission method and device, and provides multiple multiplexing schemes for scheduling units with different subcarrier spacings, which is simple to implement and can maintain symbol alignment to the greatest extent. Avoid interference and waste of resources.

Claims

A scheduling unit time division multiplexing method includes:

When the transmitting end performs scheduling unit multiplexing, it processes as follows:

When a second scheduling unit composed of OFDM symbols having a subcarrier spacing of M is multiplexed after a first scheduling unit composed of orthogonal frequency division multiplexing OFDM symbols having a subcarrier spacing of N, or when the subcarrier spacing is N When the first scheduling unit formed by the OFDM symbol is multiplexed with the OFDM symbol A with the subcarrier spacing of M, the end position of the first scheduling unit is determined to be one of the OFDM symbols with the subcarrier spacing M being sequentially placed in the scheduling period. a start position of the OFDM symbol, or determining a start position of the second scheduling unit or symbol A as a start position of one OFDM symbol sequentially placed in an OFDM symbol with a subcarrier interval of M in a scheduling period;

When there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a duration between the end position of the first scheduling unit and the start position of the symbol A Determining that the duration does not belong to the first scheduling unit or to the second scheduling unit or symbol A, or increases the duration to the first scheduling unit, or increases the duration to The second scheduling unit or symbol A;

Where N is greater than or equal to M.
The method according to claim 1, wherein one OFDM symbol in which the OFDM symbols with subcarrier spacing of M are sequentially placed within a scheduling period is a complete OFDM symbol immediately adjacent to an end position of the first scheduling unit.
The method of claim 1, wherein the adding the duration to the first scheduling unit comprises: counting the OFDM symbols whose duration is N according to a subcarrier spacing into the first scheduling unit.
The method of claim 1, after the adding the duration to the first scheduling unit, the method further comprises:

The transmitting end notifies the receiving end of one of the following information by signaling:

The first scheduling unit increases the number of OFDM symbols after the duration;

Adding the number of OFDM symbols corresponding to the duration of the first scheduling unit;

The end position of the first scheduling unit.
The method according to claim 4, wherein the sending end notifies the receiving end of the information by signaling, including:

The transmitting end sends the information by using downlink control information or a physical downlink control channel PDCCH.
The method of claim 1, wherein the first scheduling unit and the second scheduling unit are multiplexed in a given scheduling period, or the first scheduling unit and symbol A are in a given scheduling period. Reuse within.
The method of claim 6, wherein the given scheduling period comprises an OFDM symbol with reference to a subcarrier spacing, and the number of OFDM symbols is a fixed value.
The method of claim 1 wherein

The duration is used for downlink transmission, and is used to transmit downlink control information, where the downlink control information includes downlink transmission control information or uplink transmission control information; or

The duration is used for uplink transmission, and is used for transmitting uplink control information, where the uplink control information includes an acknowledgement information ACK, a non-acknowledgement information NACK, a channel state information CSI, or a sounding reference signal SRS.
The method according to claim 1, wherein the first scheduling unit and the second scheduling unit are both an uplink transmission scheduling unit or a downlink transmission scheduling unit, or one of them is an uplink transmission scheduling unit, and the other is a downlink transmission scheduling. unit.
The method of claim 1, wherein the first scheduling unit and the second scheduling unit respectively comprise a plurality of OFDM symbols, wherein the plurality of OFDM symbols comprise at least one of: for transmission control A symbol of information, a symbol for transmitting uplink data, a symbol for transmitting downlink data, and a guard symbol for uplink or downlink handover.
The method according to claim 1, wherein the values of N and M are one of the following: 3.75 kHz KHz, 7.5 KHz, 15 KHz, 30 KHz, 60 KHz, 120 KHz, 240 KHz, 480 KHz, 75 KHz.
The method according to claim 1, further comprising: determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing according to one of the following manners:

Determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and k satisfies the current subcarrier spacing as the reference subcarrier spacing. 2 k times;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is one of the following: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and b satisfies the current subcarrier spacing. Referring to the 2 b times of the subcarrier spacing, the value range of k is the same as the value range of b. When b is given, k takes a value less than or equal to b in the value range;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×2 k , where Y is a positive integer, and k satisfies the current subcarrier spacing as 2 k times the reference subcarrier spacing;

Determining, that the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×L, where Y is a positive integer, and L satisfies that the current subcarrier spacing is L times the reference subcarrier spacing;

The value of H and Y is notified to the receiving end by the transmitting end, or is agreed by the transmitting end and the receiving end.
An information transmission method includes:

When the sending end and the receiving end agree that the length or the number of symbols of the scheduling unit is a fixed value, or the transmitting end configures the length or the number of symbols of the scheduling unit by signaling, the sending end sends or retransmits the configuration information to the receiving end; The configuration information is used to indicate a length or a symbol number or an end position of the scheduling unit;

Alternatively, when the transmitting end performs the scheduling unit transmission, it is processed as follows:

The sending end agreement or configuration scheduling unit includes F symbols, and adds a number of symbols to the scheduling unit, and the value of the number of allowed symbols is less than:
Positive integer

Wherein, N and M satisfy the following condition: when a scheduling unit composed of orthogonal frequency division multiplexing OFDM symbols with a subcarrier spacing of N transmits a scheduling unit composed of OFDM symbols with a subcarrier spacing of M, or when the subcarrier spacing is N When the scheduling unit formed by the OFDM symbols is multiplexed with the OFDM symbol A with the subcarrier spacing of M, the range of the number of symbols dynamically increased by the previous scheduling unit is: less than
Positive integer,
Indicates rounding down, N is greater than or equal to M.
The method according to claim 13, when the sending end sends or retransmits the configuration information to the receiving end, the method further includes: adjusting, by the sending end, according to the configuration information At least one of data transmission and reception is performed by the length or the number of symbols of the unit.
The method according to claim 13, wherein the transmitting end configuration scheduling unit includes F symbols, and the method includes: the transmitting end configures, by using radio resource control, RRC signaling, that the scheduling unit includes F symbols, and F is a positive integer.
The method of claim 13, wherein the configuration information is valid for an agreed time period, the agreed time period comprising one of: within the current scheduling unit, within the current scheduling period.
The method of claim 13, wherein the scheduling unit comprises a plurality of OFDM symbols, wherein the plurality of OFDM symbols comprise one or more of the following symbols: symbols for transmitting control information, for transmitting uplinks The symbol of the data, the symbol used to transmit the downlink data, and the guard symbol used for the uplink or downlink handover.
The method of claim 13, wherein the sending end sends or retransmits the configuration information to the receiving end, including:

When the transmitting end performs scheduling unit multiplexing, when the following occurs, the transmitting end sends configuration information:

When a first scheduling unit composed of OFDM symbols having a subcarrier spacing of N is used to multiplex a second scheduling unit composed of OFDM symbols with a subcarrier spacing of M, or a first scheduling composed of OFDM symbols with a subcarrier spacing of N When the unit multiplexes the OFDM symbol A with the subcarrier spacing of M, the end position of the first scheduling unit is the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M, or the second scheduling The start position of the unit or symbol A is the start position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M;

When there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a length of time between the end position of the first scheduling unit and the start position of the symbol A, the duration is increased to a scheduling unit; wherein N is greater than or equal to M.
The method according to claim 13 or 18, wherein the values of N and M are one of the following: 3.75 kHz KHz, 7.5 KHz, 15 KHz, 30 KHz, 60 KHz, 120 KHz, 240 KHz, 480 KHz, 75 KHz.
The method according to claim 13, further comprising: determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing according to the following manner:

Determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and k satisfies the current subcarrier spacing as the reference subcarrier spacing. 2 k times;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is one of the following: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and b satisfies the current subcarrier spacing. Referring to the 2 b times of the subcarrier spacing, the value range of k is the same as the value range of b. When b is given, k takes a value less than or equal to b in the value range;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×2 k , where Y is a positive integer, and k satisfies the current subcarrier spacing as 2 k times the reference subcarrier spacing;

Determining, that the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×L, where Y is a positive integer, and L satisfies that the current subcarrier spacing is L times the reference subcarrier spacing;

The value of H and Y is notified to the receiving end by the transmitting end, or is agreed by the transmitting end and the receiving end.
An information transmission method includes:

After the receiving end and the transmitting end agree that the length or the number of symbols of the scheduling unit is a fixed value, when the receiving end receives the configuration information sent by the sending end, and the configuration information indicates the length or the number of symbols of the scheduling unit, Receiving, by the receiving end, the length, the number of symbols, or the ending position of the scheduling unit according to the configuration information;

Alternatively, the receiving end receives the configuration information sent by the sending end, and determines the length, the number of symbols, or the ending position of the scheduling unit according to the configuration information, where the configuration information indicates the length or the number of symbols of the scheduling unit.
The method of claim 21, wherein the configuration information is valid for an agreed time period, the agreed time period comprising one of: within the current scheduling unit, within the current scheduling period.
The method of claim 21, wherein the scheduling unit comprises a plurality of orthogonal frequency division multiplexing OFDM symbols, wherein the plurality of OFDM symbols comprises one or more of the following symbols: A symbol for transmitting control information, a symbol for transmitting uplink data, a symbol for transmitting downlink data, and a guard symbol for uplink or downlink handover.
The method according to claim 21, wherein the receiving end receives the configuration information sent by the transmitting end, and determines the length, the number of symbols or the ending position of the scheduling unit according to the configuration information, including:

When the receiving end receives the first configuration information and the second configuration information sent by the sending end, and the first configuration information and the second configuration information are valid at the same time, the receiving end determines the length and the number of symbols of the scheduling unit according to the second configuration information. Or an end position; wherein the first configuration information and the second configuration information are information indicating a length or a number of symbols of the scheduling unit.
The method according to claim 24, wherein the first configuration information is sent by high layer signaling, or periodically sent by physical layer information, where the period size is predefined or notified by higher layer signaling;

The second configuration information is sent by physical layer signaling, or occurs in a scheduling period, and the second configuration information appears at the beginning of each scheduling period, and is used to describe the length of some or all scheduling units in the scheduling period or The number of symbols.
The method according to claim 21, further comprising: determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing according to one of the following manners:

Determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and k satisfies the current subcarrier spacing as the reference subcarrier spacing. 2 k times;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is one of the following: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and b satisfies the current subcarrier spacing. Referring to the 2 b times of the subcarrier spacing, the value range of k is the same as the value range of b. When b is given, k takes a value less than or equal to b in the value range;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×2 k , where Y is a positive integer, and k satisfies the current subcarrier spacing as 2 k times the reference subcarrier spacing;

Determining, that the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×L, where Y is a positive integer, and L satisfies that the current subcarrier spacing is L times the reference subcarrier spacing;

The value of H and Y is notified to the receiving end by the transmitting end, or is agreed by the transmitting end and the receiving end.
A scheduling unit time division multiplexing device includes:

The first processing unit (801) is configured to perform processing in the following manner when performing scheduling unit multiplexing:

When a first scheduling unit composed of orthogonal frequency division multiplexing OFDM symbols with a subcarrier spacing of N is used to multiplex a second scheduling unit composed of OFDM symbols with a subcarrier spacing of M, or when the subcarrier spacing is N OFDM When the first scheduling unit of the symbol is multiplexed with the OFDM symbol A with the subcarrier spacing of M, the end position of the first scheduling unit is determined to be the beginning of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M Positioning, or determining, that the starting position of the second scheduling unit or symbol A is a starting position of one OFDM symbol sequentially placed in the scheduling period of the OFDM symbol with the subcarrier spacing M;

Determining when there is a length of time between the end position of the first scheduling unit and the start position of the second scheduling unit, or when there is a length of time between the end position of the first scheduling unit and the start position of the symbol A The duration does not belong to the first scheduling unit or the second scheduling unit or symbol A, or the duration is increased to the first scheduling unit, or the duration is increased to the second scheduling unit or symbol A;

Where N is greater than or equal to M.
The apparatus of claim 27, the apparatus further comprising: a notification module (802) configured to pass signaling after the first processing module (801) adds the duration to the first scheduling unit Notify the receiving end of one of the following messages:

The first scheduling unit increases the number of OFDM symbols after the duration;

Adding the number of OFDM symbols corresponding to the duration of the first scheduling unit;

The end position of the first scheduling unit.
The apparatus according to claim 27, further comprising: a first operation module (803) configured to determine a number of symbols of the scheduling unit corresponding to the current subcarrier spacing according to one of the following manners:

Determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and k satisfies the current subcarrier spacing as the reference subcarrier spacing. 2 k times;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is one of the following: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and b satisfies the current subcarrier spacing. Referring to the 2 b times of the subcarrier spacing, the value range of k is the same as the value range of b. When b is given, k takes a value less than or equal to b in the value range;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×2 k , where Y is a positive integer, and k satisfies the current subcarrier spacing as 2 k times the reference subcarrier spacing;

Determining, that the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×L, where Y is a positive integer, and L satisfies that the current subcarrier spacing is L times the reference subcarrier spacing;

The value of H and Y is notified to the receiving end by the transmitting end, or is agreed by the transmitting end and the receiving end.
An information transmission device is applied to a transmitting end, and includes:

The first sending module (901) is configured to: when the sending end and the receiving end agree that the length or the number of symbols of the scheduling unit is a fixed value, or the sending end configures the length or the number of symbols of the scheduling unit by signaling, sending or resending the configuration information. Giving the receiving end; wherein the configuration information is used to indicate a length or a symbol number or an ending position of the scheduling unit;

Alternatively, the second processing module (902), configured to perform scheduling unit transmission, processes in the following manner:

The appointment or configuration scheduling unit includes F symbols, and adds a number of symbols to the scheduling unit, and the value of the number of allowed symbols is less than:
Positive integer

Wherein, N and M satisfy the following condition: when a scheduling unit composed of orthogonal frequency division multiplexing OFDM symbols with a subcarrier spacing of N transmits a scheduling unit composed of OFDM symbols with a subcarrier spacing of M, or when the subcarrier spacing is N When the scheduling unit formed by the OFDM symbols is multiplexed with the OFDM symbol A with the subcarrier spacing of M, the range of the number of symbols dynamically increased by the previous scheduling unit is: less than
Positive integer,
Indicates rounding down, N is greater than or equal to M.
The apparatus according to claim 30, further comprising: a data transmission module (903) configured to, when the first transmitting module (901) transmits or retransmits configuration information to the receiving end, according to the The length or number of symbols of the scheduling unit indicated by the configuration information is used for data transmission and reception. At least one of them.
The apparatus of claim 30, the apparatus further comprising: a second computing module (904) configured to determine a number of symbols of the scheduling unit corresponding to the current subcarrier spacing according to the following manner:

Determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and k satisfies the current subcarrier spacing as the reference subcarrier spacing. 2 k times;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is one of the following: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and b satisfies the current subcarrier spacing. Referring to the 2 b times of the subcarrier spacing, the value range of k is the same as the value range of b. When b is given, k takes a value less than or equal to b in the value range;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×2 k , where Y is a positive integer, and k satisfies the current subcarrier spacing as 2 k times the reference subcarrier spacing;

Determining, that the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×L, where Y is a positive integer, and L satisfies that the current subcarrier spacing is L times the reference subcarrier spacing;

The value of H and Y is notified to the receiving end by the transmitting end, or is agreed by the transmitting end and the receiving end.
An information transmission device is applied to a receiving end, and includes:

The first receiving module (1001) is configured to receive configuration information sent by the sending end after the receiving end and the transmitting end agree that the length or the number of symbols of the scheduling unit is a fixed value;

The first determining module (1002) is configured to, when the configuration information indicates the length or the number of symbols of the scheduling unit, re-determine the length, the number of symbols, or the ending position of the scheduling unit according to the received configuration information;

or,

The second receiving module (1003) is configured to receive configuration information sent by the sending end;

The second determining module (1004) is configured to determine a length, a number of symbols, or an ending position of the scheduling unit according to the configuration information, wherein the configuration information indicates a length or a number of symbols of the scheduling unit.
The apparatus of claim 33, the apparatus further comprising: a third computing module (1005), The method is configured to determine, according to one of the following manners, the number of symbols of the scheduling unit corresponding to the current subcarrier interval:

Determining the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and k satisfies the current subcarrier spacing as the reference subcarrier spacing. 2 k times;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is one of the following: H×2 k , where H is the number of symbols of the scheduling unit formed by the OFDM symbols generated by the reference subcarrier spacing, and b satisfies the current subcarrier spacing. Referring to the 2 b times of the subcarrier spacing, the value range of k is the same as the value range of b. When b is given, k takes a value less than or equal to b in the value range;

Determining, the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×2 k , where Y is a positive integer, and k satisfies the current subcarrier spacing as 2 k times the reference subcarrier spacing;

Determining, that the number of symbols of the scheduling unit corresponding to the current subcarrier spacing is: Y×L, where Y is a positive integer, and L satisfies that the current subcarrier spacing is L times the reference subcarrier spacing;

The value of H and Y is notified to the receiving end by the transmitting end, or is agreed by the transmitting end and the receiving end.
A computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the scheduling unit time division multiplexing method of any one of claims 1 to 12.
A computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the information transmission method of any one of claims 13-20.
A computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the information transmission method of any one of claims 21 to 26.
A scheduling unit time division multiplexing method includes:

When one or more symbols in a scheduling unit with a subcarrier spacing of N are used as a traffic transmission with a subcarrier spacing of M, one or more orthogonal frequency division multiplexing in a scheduling unit with a subcarrier spacing of N The OFDM symbol is converted to a scheduling unit corresponding to an OFDM symbol having a subcarrier spacing of M.
The method of claim 38, wherein the subcarrier spacing is M scheduling The unit contains 2 or 4 symbols.
The method according to claim 38, wherein OFDM symbols with 1 subcarrier spacing of N are converted into 1 scheduling unit, the scheduling unit includes 4 OFDM symbols with subcarrier spacing of M; or one subcarrier spacing is N The OFDM symbol is converted into two scheduling units, and each scheduling unit has two OFDM symbols with subcarrier spacing of M.
The method according to claim 38, wherein OFDM symbols with 2 subcarrier spacings of N are converted into 2 scheduling units, each scheduling unit includes 4 OFDM symbols with subcarrier spacing of M; or 2 subcarriers are spaced The OFDM symbol for N is converted into 4 scheduling units, and each scheduling unit has 2 OFDM symbols with subcarrier spacing of M.
The method according to claim 38, wherein when the base station configures the subcarrier spacing to be M, the OFDM symbol number G included in the corresponding scheduling unit satisfies the condition that the OFDM symbol with the subcarrier spacing of N can be split. OFDM symbols of the M complete subcarrier spacing of M, or OFDM symbols including the G complete subcarrier spacings of N can be aggregated into one OFDM symbol with the subcarrier spacing of M; G is one of 2, 4, 8...2 n , and n is an integer.
A computer readable medium storing computer executable instructions that, when executed by a processor, implement the scheduling unit time division multiplexing method of any one of claims 38 to 42.