CN111131121A

CN111131121A - Information transmission method, device, equipment and storage medium

Info

Publication number: CN111131121A
Application number: CN201911383081.7A
Authority: CN
Inventors: 石靖
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-05-08

Abstract

The application provides an information transmission method, an information transmission device, information transmission equipment and a storage medium, wherein the method comprises the following steps: the time domain symbol number of the control resource set is determined, and information is transmitted in at least one symbol of the time domain symbol number contained in the control resource set, so that the time domain symbol number of the control resource set can be expanded and configured, the requirement on frequency domain resources is reduced, the method is better suitable for transmission of a narrow-band system or transmission of a single carrier system, and the application range of a 5G system is further expanded.

Description

Information transmission method, device, equipment and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to an information transmission method, apparatus, device, and storage medium.

Background

Currently, the fourth Generation mobile communication technology (4G) and the fifth Generation mobile communication technology (5G) are both researching features supporting enhanced mobile bandwidth, ultra-high reliability, ultra-low latency transmission and massive connection. Wherein, the Physical Downlink Control Channel (PDCCH) supported by the 5G system controls the symbol number (duration) of the Resource Set (CORESET) to have only 1 or 2 or 3 Orthogonal Frequency Division Multiplexing (OFDM) symbols. At this time, in order to support at least one aggregation level 16, that is, when 16 Control Channel Elements (CCEs) are required, when a value of PDCCH core duration is only 1, 2, or 3 OFDM symbols, 96, 48, or 32 Physical Resource Block (PRB) resources are required, respectively.

However, currently, transmission of a New Radio (NR) PDCCH is mainly applicable to broadband transmission, and under two scenarios that downlink transmission in a 5G evolution system needs to support Single Carrier-Frequency Division multiple access (SC-FDMA) transmission and reuse of Frequency domain resources of a previous generation wireless mobile communication system with a relatively dispersed and relatively small bandwidth in the 5G evolution system, when narrowband transmission is considered, that is, when fewer PRB resources available for PDCCH transmission in the Frequency domain are considered, transmission resources of the PDCCH need to be considered.

Disclosure of Invention

In order to solve at least one of the above technical problems, embodiments of the present application provide the following solutions.

The embodiment of the application provides an information transmission method, which comprises the following steps:

determining the number of time domain symbols of the control resource set;

information is transmitted in at least one symbol that controls the number of time domain symbols contained in the set of resources.

An embodiment of the present application provides an information transmission apparatus, including:

the determining module is used for determining the time domain symbol number of the control resource set;

and a transmission module, configured to transmit information in at least one symbol of the number of time domain symbols included in the control resource set.

An embodiment of the present application provides an apparatus, including: the information transmission method comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, and when the processor executes the computer program, the information transmission method is realized.

Embodiments of the present application provide a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements an information transmission method as provided in embodiments of the present application.

With regard to the above embodiments and other aspects of the present application and implementations thereof, further description is provided in the accompanying drawings description, detailed description and claims.

Drawings

Fig. 1 is a schematic diagram of mapping REGs to CCEs in an interleaving manner;

FIG. 2 is a schematic diagram of REG to CCE mapping in a non-interleaved manner;

fig. 3 is a schematic flow chart of an information transmission method according to an embodiment;

fig. 4 is a schematic diagram of resources occupied by mapping in a narrowband 6PRB in a non-interleaved manner;

fig. 5 is a schematic diagram of resources occupied by mapping in a narrowband 6PRB in a non-interleaved manner;

fig. 6 is a schematic diagram illustrating repetition of controlling a time domain symbol number of 1 in a resource set;

fig. 7 is a schematic diagram illustrating repetition of a control resource set with a time domain symbol number of 2;

fig. 8 is a schematic diagram illustrating repetition of controlling a time domain symbol number of 3 in a resource set;

fig. 9 is a flowchart illustrating an information transmission method according to an embodiment;

fig. 10 is a schematic structural diagram of an information transmission apparatus according to an embodiment;

fig. 11 is a schematic structural diagram of an apparatus according to an embodiment.

Detailed Description

To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

In addition, in the embodiments of the present application, the words "optionally" or "exemplarily" are used for indicating as examples, illustrations or explanations. Any embodiment or design described herein as "optionally" or "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the words "optionally" or "exemplarily" etc. is intended to present the relevant concepts in a concrete fashion.

For a clearer understanding of the solutions provided by the embodiments of the present application, further explanations and illustrations of related concepts that may be involved in the embodiments of the present application are provided herein, such as:

in the prior art, in the time domain, NR PDCCH transmission supports 1-3 OFDM symbols, the number of which is specifically configured by higher layer signaling. In the frequency domain, the number of PRBs of a CORESET where the PDCCH is located is configured by high-level signaling, and the value is integral multiple of 6 PRBs. In CORESET, 1CCE consists of 6 REGs, and 1 PDCCH uses 1 or 2 or 4 or 8 or 16 CCEs, called

aggregation level

1 or 2 or 4 or 8 or 16. The 1 Resource Element Group (REG) is specifically 12 Resource Elements (REs) corresponding to one 1 PRB in a frequency domain and 1 OFDM symbol in a time domain, and the numbers of the 12 REs are 0, 1, 2, …, and 11, where REs where Demodulation Reference signals (DMRSs) are located are 1, 5, 9, that is, 9 REs are REs transmitting downlink control information. Therefore, 1CCE contains 72 REs, where 9 × 6 ═ 54 REs are available for the REs carrying Downlink Control Information (DCI), where the Information carried by the PDCCH channel is DCI. Currently, there are two mapping methods for REG to CCE, namely an interleaving method and a non-interleaving method. As shown in fig. 1 and 2, taking the CORESET of 8 CCEs as an example, fig. 1 and 2 are mapping patterns of an interleaving scheme and a non-interleaving scheme, respectively, where OS denotes OFDM symbols (OFDM Symbol).

Based on the above concept, fig. 3 provides a data transmission method, which may be applied in a scenario of transmission in a narrowband system or a single carrier system, as shown in fig. 3, the method may include:

s301, determining the time domain symbol number of the control resource set.

In a scenario where a narrowband system and a single carrier system transmit a PDCCH, for example, the time domain symbol number of the control resource set may be determined by expanding a value of the time domain symbol number of an existing control resource set.

S302, information is transmitted in at least one symbol of the time domain symbol number contained in the control resource set.

By determining the time domain symbol number of the control resource set in step S301, the time domain symbol number of the control resource set in which the PDCCH is located can be configured, and further, information is transmitted based on at least one symbol in the determined control resource set.

For example, the PDCCH may be transmitted in certain symbols.

It should be noted that the above-mentioned information transmission based on at least one symbol may be understood as information transmission using all symbols in the control resource set, and may also be understood as information transmission using a part of symbols in the control resource set.

In the embodiment of the application, information is transmitted in the symbols of the time domain symbol number contained in the control resource set by determining the time domain symbol number of the control resource set, so that the time domain symbol number of the control resource set where the PDCCH is located can be expanded and configured, the requirement on frequency domain resources is reduced, the method is better suitable for transmission of a narrow-band system or transmission of a single carrier system, and the application range of a 5G system is further expanded.

In an example, the determining the number of time domain symbols of the control resource set in step S301 may be implemented by predefined or higher layer signaling configuration.

Illustratively, the number of time domain symbols of the control resource set is determined to be X, or a multiple of X, and the value of X may be any positive integer from 1 to 14.

Optionally, the determined time domain symbols of the X control resource sets may be continuous symbols or discontinuous symbols, where the discontinuous symbols may be determined by a bitmap (bitmap) manner or a manner indicating a preset pattern.

Further, the manner of predefining the time domain symbol number of the control resource set may be that the number of resource unit groups constituting one control channel unit in the predefined control resource set is a fixed value. For example, the number of resource element groups in the predefined control set that constitute one control channel element is any positive integer in the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 }.

Or, the predefined time-domain symbol number of the control resource set may be determined by determining, according to X, the number of resource element groups forming one control channel element in the control resource set, and further, the determining may be performed by taking, according to a set to which X belongs, a value corresponding to the set as the number of resource element groups forming one control channel element, where values corresponding to different sets are different.

For example, a threshold value M is defined, and when X belongs to a set of X < M, or X ≦ M, the number of resource groups of one control channel element is determined to be Y1, i.e., 1CCE — Y1 REGs; when X belongs to a set of X ≧ M or X > M, the number of resource groups of one control channel element is determined to be Y2, i.e., 1 CCE-Y2 REGs, where Y1 is not equal to Y2. Optionally, the threshold value M may be a preset value or a value configured for a higher layer signaling.

Illustratively, the above Y1 may be greater than Y2, e.g., M6, Y1 6, and Y2 5.

Or, assuming that the value of X belongs to a value set1, determining 1CCE to Y1 REGs; and when the value of X belongs to a value set2, determining that 1CCE is Y2 REGs, wherein Y1 is not equal to Y2. For example, assume that set1 is {6,12}, Y1 is 6, set2 is {5,10}, and Y2 is 5. Optionally, the X value set may be a preset set or a value set configured for a higher layer signaling.

It should be noted that, in the above examples of different sets, there is no limitation to only one threshold value, nor to only two value sets. Further, multiple thresholds or multiple value sets may be set, for example, 2 thresholds may be set to determine 3 value intervals, or 3 value sets may be set to determine the number of resource groups of the control channel unit, respectively.

Assuming that the determined time-domain symbol number of the control resource set can support 7, 14 symbols, in this case, 1CCE consists of 7 REGs, which has an increased number of REs compared to the number of REs contained in the CCE in the prior art. Optionally, in this case, non-interleaved mapping may be selected, and for example, resources occupied in the narrowband 6PRB are mapped in a non-interleaved manner as shown in fig. 4.

If it is assumed that the determined number of time domain symbols of the control resource set can support 6 or 12 symbols, in this case, 1CCE consists of 6 REGs and can be mapped in a non-interleaved manner. As shown in fig. 5, it is a schematic diagram of resource occupation in narrowband 6PRB in a non-interleaved manner.

Of course, the above is only an exemplary description, and the value of the number of time domain symbols for the control resource set may be greater than 14, for example, the number of symbols in fig. 4 and 5 is enlarged by 2 times, that is, 28 symbols in fig. 4 and 24 symbols in fig. 5, so that the aggregation level 16 may be better supported.

When the time domain symbol number of the control resource set is determined to be configured through the high-level signaling, the repetition times can be configured through the high-level signaling, and the repetition is performed by taking the time domain symbol number of the first control resource set as a unit according to the repetition times, or the number of the repeated time domain symbol number of the first control resource set is configured to be the time domain symbol number of the control resource set through the high-level signaling.

It should be noted that the first control resource set can be understood as a control resource set in the prior art, i.e. the CORESET duration is {1, 2, 3 }. And, for discontinuous repetition transmission, the single carrier demodulation reference signal is located in one of several symbols between two repetitions. For example, assuming that the interval between two repetitions is 1 time-domain symbol, then the symbol is used for single-carrier demodulation reference signal transmission.

For example, after the conventional CORESET duration is {1, 2, 3}, the repetition number is configured in a high layer signaling manner, and may be a positive integer. Illustratively, the number of repetitions may be any one of the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 }.

Or, the CORESET duration is configured as {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14} in a high-layer signaling manner, and the time-domain symbol number of the configuration may be any one of fig. 6, fig. 7, and fig. 8, for example.

Further, configuring the repetition times through the high-level signaling, and performing repetition in a unit of time domain symbol number of the first control resource set according to the repetition times may be, configuring the repetition times through the high-level signaling, and repeating the maximum aggregation level configured or supported in the search space of the associated first control resource set according to the repetition times. For example, based on the conventional coreset duration being {1, 2, 3} and the aggregation level, the time-domain symbol number of the control resource set may be determined in any one of the manners shown in fig. 6, 7, and 8.

Further, the number of repetitions may be determined by an aggregation level, and the maximum number of repetitions of an aggregation level that is low is greater than the maximum number of repetitions of an aggregation level that is high. For example, aggregation level 1 may support any one of the sets {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, aggregation level 2 may support any one of the sets {1, 2, 3, 4, 5, 6, 7}, and aggregation level 2 may support any one of the sets {1, 2, 3, 4 }.

Alternatively, the above example may employ non-interleaved mapping.

The above-mentioned time domain symbol number for configuring a control resource set through higher layer signaling based on an Aggregation Level (AL) is described in detail below with specific examples.

As shown in fig. 6, when the number of time-domain symbols of the first control resource set is 1, that is, the duration of the CORESET is 1, if AL is 1 and the number of repetitions is 1, 2, 4, and 8, then in the narrow band of 6 RBs, by repeating the time-domain symbols of the first control resource set, AL is 1, 2, 4, or 8 CCEs can be implemented.

As shown in fig. 7, when the duration of the core is 2, if AL is 1 and there are 2 candidates when the repetition number is 1, the repetition may be performed on AL is 2, and the repetition may be performed on the time domain symbol of the first control resource set1, 2, or 4 times, so that AL is 2, 4, or 8 CCEs.

As shown in fig. 8, when the duration of the core is 3, if AL is 3, then the repetition is not needed for

AL

1 or 2, the repetition is performed only for AL 3, and the repetition is performed 1 or 2 or 3 or 4 times for the time domain symbol of the first control resource set, so that

AL

3 or 6 or 9 or 12 CCEs can be implemented.

Of course, the number of time domain symbols of the control resource set configured by the higher layer signaling may be greater than 14, for example, if the number of time domain symbols shown in fig. 7 or fig. 8 is increased by 2 times, the number of time domain symbols of the obtained control resource set is 16, so that the aggregation level 16 may be better supported.

By repeating the number of time domain symbols of the control resource set where the existing PDCCH is located in the above manner, the requirement on frequency domain resources can be reduced, so that the method is better suitable for transmission of a narrow-band system or a single carrier system, and the application range of the 5G system is widened.

In one example, the number of time domain symbols determined in step S301 above may be indicated by a Y-bit bitmap, that is, the number of time domain symbols indicating the control resource set is allowed to be consecutive X symbols or non-consecutive X symbols, where Y is greater than or equal to X.

For example, Y ═ 5 indicates 11011, which indicates that the number of time domain symbols of the control resource set is 4 symbols in total, which is non-consecutive, i.e., 1 st, 2 nd, 4th, 5th symbols are used, starting from the starting symbol of the search space; or, Y ═ 14 indicates 01101100000000, which indicates that the number of symbols in the time domain of the control resource set is 4 symbols in total, which is non-consecutive, i.e., starting from the starting symbol of 1 slot, the 2 nd, 3 rd, 5th, and 6 th symbols are used.

Alternatively, the manner of determining the time domain symbol number of the Control Resource set in step S301 is to configure one of candidate preset patterns (patterns) through Radio Resource Control (RRC), where the preset patterns are shown in table 1.

TABLE 1

As shown in fig. 9, on the premise of determining the time domain symbol number of the control resource set, the implementation of the present application further provides a manner as follows:

s3010, determining a time domain symbol where the demodulation reference signal is located in the control resource set.

Optionally, in this embodiment of the present application, several following implementation manners of determining a time domain symbol in which a demodulation reference signal is located in a control resource set are provided:

the first mode is that the time domain symbol where the demodulation reference signal is located in the control resource set is determined according to the value of the time domain symbol number X of the control resource set. Illustratively, when the number of time domain symbols of the control resource set is less than or equal to 3, it may be determined that a demodulation reference signal exists on each time domain symbol; when the number of the time domain symbols of the control resource set is greater than 3, the time domain symbol where the demodulation reference signal is located can be determined in the rest time domain symbols after the first 3 symbols;

secondly, when the time domain symbol number of the control resource set is X or a multiple of X, a demodulation reference signal exists on the first time domain symbol in the time domain symbols of the control resource set, and the time domain symbol where the demodulation reference signal is located is determined in the rest time domain symbols;

when the time domain symbol number of the control resource set is X or a multiple of X, determining that demodulation reference signals exist on all time domain symbols in the time domain symbols of the control resource set;

and fourthly, when the time domain symbol number of the control resource set is X or a multiple of X, determining that a demodulation reference signal exists on the first time domain symbol in the control resource set.

And fifthly, when the number of the time domain symbols of the control resource set is X or a multiple of X, configuring the position of the time domain symbol where the demodulation reference signal is located with an independent parameter, for example, configuring PDCCH DMRS the position of the symbol.

Alternatively, in the above-mentioned manners one to three, the demodulation reference signal may be PDCCH DMRS, that is, located at

positions

1, 5, and 9 in one OFDM symbol and 1 PRB.

Further, for the first and second manners, when determining the time domain symbol where the demodulation reference signal is located in the remaining time domain symbols, the following manners may be implemented:

for example, the demodulation reference signal does not exist on the rest of the time domain symbols, that is, the demodulation reference signal is not added again;

or, configuring, by higher layer signaling (e.g., RRC signaling), a time domain symbol in which the demodulation reference signal is located in the remaining time domain symbols;

or, determining the time domain symbol where the demodulation reference signal is located in the rest time domain symbols according to the time domain symbol number of the control resource set and a preset table.

For example, the determining of the time domain symbol where the demodulation reference signal is located in the remaining time domain symbols according to the time domain symbol number of the control resource set and the preset table may be implemented in the following two different ways.

In a first implementation manner, based on the time domain symbol of the control resource set and the preset table 2, the time domain symbol where the demodulation reference signal is located is determined in the remaining time domain symbols.

TABLE 2

Number of time domain symbols	DMRS symbol positions
		4	Is free of
5	L＝4
		……	……
14	L＝4，10

In a second implementation manner, based on the time domain symbol of the control resource set and the preset table 3, the time domain symbol where the demodulation reference signal is located is determined in the remaining time domain symbols.

TABLE 3

In table 1 and table 2, when L is equal to 0, the time domain symbol in which the demodulation reference signal is located is the first symbol in the control resource set.

Optionally, for the above-mentioned manner four and manner five for determining the time domain symbol in which the demodulation reference signal is located in the control resource set, the demodulation reference signal may be a demodulation reference signal applicable in single carrier transmission, for example, NR PDSCH/puschh 1 DMRS or LTE PUSCH DMRS, that is, a comb-shaped pilot signal located at 0, 2, 4, 5, 8, 10 or 1, 3, 5, 7, 9, 11 positions in 1 OFDM symbol and 1 PRB, or all 12 REs.

Further, in the fourth mode, the determination that the demodulation reference signal exists on the first time domain symbol in the control resource set may be performed in the following two modes:

exemplarily, a first time domain symbol in the configured time domain symbols of the control resource set is a time domain symbol where the demodulation reference signal is located;

or the configured time domain symbol of the control resource set does not include the demodulation reference signal, and the time domain symbol at the first position in the time domain symbol of the extended control resource set is the symbol where the demodulation reference signal is located, where the time domain symbol of the extended control resource set is the sum of the time domain symbol at the first position and the time domain symbol of the first control resource set. The number of the time domain symbols at the first position is a positive integer. Alternatively, the number of time domain symbols of the first position may be 1. For example, the extended duration of the duration of 1+ configured duration, where 1 denotes a symbol dedicated to transmitting PDCCHDMRS, that is, a position where a bitmap of 14 bits in the search space configuration parameters is configured as 1, and then configured symbols of the duration of the search space, optionally, the set of values of the configured duration of the duration may be {1, 2, 3 }.

In the fifth mode, configuring the position of the time domain symbol where the demodulation reference signal is located by using the independent parameter may be implemented by:

in one example, the location of the demodulation reference signal is configured by RRC;

in another example, the remaining time domain symbols in which the demodulation reference signal exists are configured through higher layer signaling except for the first time domain symbol. Of course, in this case, the demodulation reference signal must be present on the first time domain symbol by default.

In another example, the position of the demodulation reference signal can be determined according to the time domain symbol number of the control resource set and a preset demodulation reference signal table. For example, the demodulation reference signal exists on the first time domain symbol, and the rest of the time domain symbols where the demodulation reference signal exists are shown in table 2.

After the number of time domain symbols of the control resource set is determined and the requirement on frequency domain resources is reduced, the time domain symbols where the demodulation reference signals are located in the control resource set are further determined through the implementation modes, more resources can be provided to transmit control information, the reliability of channel estimation is improved, the method is better suitable for narrow-band system transmission or single carrier system transmission, and therefore the application range of a 5G system is improved.

Fig. 10 is a schematic structural diagram of an information transmission apparatus according to an embodiment, and as shown in fig. 10, the apparatus includes: a determining module 1001 and a transmitting module 1002;

Further, the mode of determining the time domain symbol number of the control resource set by the determining module may be that the time domain symbol number of the control resource set is predefined;

or configuring the time domain symbol number of the control resource set through a high-level signaling, wherein the time domain symbol number is X, or a multiple of X, and the value range of X is any positive integer from 1 to 14.

Further, the X time domain symbols are consecutive symbols or non-consecutive symbols, wherein the non-consecutive symbols are determined by a bitmap or a predetermined pattern.

In one example, the number of time domain symbols of the predefined control resource set may be a fixed value for the number of resource element groups constituting one control channel element in the predefined control resource set; or, the number of resource unit groups in the control resource set which form one control channel unit is determined according to X.

Further, the number of resource element groups constituting one control channel element in the control resource set may be determined according to X, where a value corresponding to a set is used as the number of resource element groups constituting one control channel element according to the set to which X belongs.

In another example, the determining module configures the time domain symbol number of the control resource set through the high layer signaling, and configures the repetition times through the high layer signaling, and repeats the time domain symbol number of the first control resource set as a unit according to the repetition times; or configuring the quantity of the repeated time domain symbols of the first control resource set into the time domain symbols of the control resource set through high-layer signaling.

Further, the determining module configures a repetition number through a high-level signaling, repeats the repetition number in units of time domain symbols of the first control resource set according to the repetition number, and may configure the repetition number through the high-level signaling, and repeats the maximum aggregation level configured or supported in the search space associated with the first control resource set according to the repetition number.

The number of repetitions is determined by the aggregation level, and the maximum number of repetitions with a low aggregation level is greater than the maximum number of repetitions with a high aggregation level.

In addition, the determining module is further configured to determine a time domain symbol in which the demodulation reference signal is located in the control resource set.

For example, the above-mentioned manner for determining the time domain symbol in which the demodulation reference signal is located in the control resource set may be as follows:

determining a time domain symbol where a demodulation reference signal is located according to the value of a time domain symbol number X of a control resource set, and determining that the demodulation reference signal exists on each time domain symbol when X is less than or equal to 3; when X is larger than 3, determining the time domain symbol where the demodulation reference signal is located in the rest time domain symbols after the first 3 symbols;

in the second mode, when the number of the time domain symbols of the control resource set is X or a multiple of X, a demodulation reference signal exists on the first time domain symbol in the time domain symbols of the control resource set, and the time domain symbol where the demodulation reference signal is located is determined in the rest time domain symbols;

determining that demodulation reference signals exist on all time domain symbols in the time domain symbols of the control resource set when the time domain symbol number of the control resource set is X or a multiple of X;

and fourthly, when the time domain symbol number of the control resource set is X or a multiple of X, determining that the demodulation reference signal exists on the first time domain symbol in the control resource set.

In the first and second manners, the manner of determining the time domain symbol where the demodulation reference signal is located in the remaining time domain symbols may be:

demodulation reference signals do not exist on the other time domain symbols;

In the fourth mode, determining that the demodulation reference signal exists on the first time domain symbol in the control resource set may be implemented by any one of the following modes:

a first time domain symbol in the configured time domain symbols of the control resource set is a time domain symbol where the demodulation reference signal is located;

or the configured time domain symbol of the control resource set does not include the demodulation reference signal, and the time domain symbol at the first position in the time domain symbol of the extended control resource set is the symbol where the demodulation reference signal is located, where the time domain symbol of the extended control resource set is the sum of the time domain symbol at the first position and the time domain symbol of the first control resource set.

Fig. 11 is a schematic structural diagram of an apparatus according to an embodiment, as shown in fig. 11, the apparatus includes a processor 1101 and a memory 1102; the number of the processors 1101 in the device may be one or more, and one processor 1101 is taken as an example in fig. 11; the processor 1101 and the memory 1102 in the device may be connected by a bus or other means, such as the bus connection in fig. 11.

The memory 1102 may be used as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the information transmission method in the embodiments of fig. 1 and 9 (e.g., the determining module 1001 and the transmitting module 1002 in the information transmission apparatus). The processor 1101 implements the above-described information transmission method by executing software programs, instructions, and modules stored in the memory 1102.

The memory 1102 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory 1102 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method of information transmission, the method comprising:

determining the number of time domain symbols of the control resource set;

The above description is only exemplary embodiments of the present application, and is not intended to limit the scope of the present application.

In general, the various embodiments of the application may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.

Embodiments of the application may be implemented by a data processor of an information transfer device executing computer program instructions, for example in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

Any logic flow block diagrams in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on a memory. The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, Read Only Memory (ROM), Random Access Memory (RAM), optical storage devices and systems (digital versatile disks, DVDs, or CD discs), etc. The computer readable medium may include a non-transitory storage medium. The data processor may be of any type suitable to the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), processors of a programmable logic device (FPGA) core processor architecture.

The foregoing has provided by way of exemplary and non-limiting examples a detailed description of exemplary embodiments of the present application. Various modifications and adaptations to the foregoing embodiments may become apparent to those skilled in the relevant arts in view of the following drawings and the appended claims without departing from the scope of the invention. Therefore, the proper scope of the invention is to be determined according to the claims.

Claims

1. An information transmission method, comprising:

determining the number of time domain symbols of the control resource set;

information is transmitted in at least one symbol of a number of time domain symbols contained in the set of control resources.

2. The method of claim 1, wherein determining the number of time domain symbols controlling a set of resources comprises:

predefining a time domain symbol number of the control resource set;

or configuring the time domain symbol number of the control resource set through high-level signaling;

the time domain symbol number is X or a multiple of X, and the value range of X is any positive integer from 1 to 14.

3. The method of claim 2, wherein the X time domain symbols are consecutive symbols or non-consecutive symbols, and wherein the non-consecutive symbols are determined by a bitmap method or a method indicating a preset pattern.

4. The method of claim 2 or 3, wherein predefining the number of time domain symbols for the set of control resources comprises:

predefining the number of resource unit groups forming a control channel unit in the control resource set as a fixed value;

or, the number of resource element groups forming one control channel element in the control resource set is determined according to the X.

5. The method of claim 4, wherein the number of resource element groups in the control resource set that constitute one control channel element is determined according to the X, and comprises:

and according to the set to which the X belongs, taking the numerical value corresponding to the set as the number of the resource unit groups forming one control channel unit.

6. The method of claim 2 or 3, wherein configuring the number of time domain symbols of the control resource set through higher layer signaling comprises:

configuring the repetition times through a high-level signaling, and repeating by taking the time domain symbol number of the first control resource set as a unit according to the repetition times;

or configuring the number of repeated time domain symbols of the first control resource set as the number of time domain symbols of the control resource set through high-level signaling.

7. The method of claim 6, wherein configuring a repetition number according to which repetition is performed in units of time domain symbols of the first control resource set through higher layer signaling comprises:

the maximum aggregation level configured or supported in the search space associated to the first set of control resources is repeated by a repetition number configured by higher layer signaling.

8. The method of claim 7, wherein the number of repetitions is determined by an aggregation level, and wherein a maximum number of repetitions for a low aggregation level is greater than a maximum number of repetitions for a high aggregation level.

9. The method of claim 2, further comprising determining a time domain symbol in which a demodulation reference signal is located in the set of control resources.

10. The method of claim 9, wherein determining the time domain symbol in which the demodulation reference signal is located in the control resource set comprises any one of:

in the first mode, a time domain symbol where a demodulation reference signal is located is determined according to the value of the time domain symbol number X of the control resource set, and when X is less than or equal to 3, the demodulation reference signal exists on each time domain symbol; when X is larger than 3, determining the time domain symbol where the demodulation reference signal is located in the rest time domain symbols after the first 3 symbols;

in a second mode, when the number of the time domain symbols of the control resource set is X or a multiple of X, a demodulation reference signal exists on a first time domain symbol in the time domain symbols of the control resource set, and the time domain symbol where the demodulation reference signal is located is determined in the rest time domain symbols;

in a third mode, when the number of the time domain symbols of the control resource set is X or a multiple of X, it is determined that demodulation reference signals exist on all the time domain symbols in the time domain symbols of the control resource set;

and determining that a demodulation reference signal exists on the first time domain symbol in the control resource set when the time domain symbol number of the control resource set is X or a multiple of X.

11. The method of claim 10, wherein determining the time domain symbol in which the demodulation reference signal is located from the remaining time domain symbols comprises one of:

in a first mode, no demodulation reference signal exists on the rest time domain symbols;

configuring a time domain symbol where a demodulation reference signal is located in the rest time domain symbols through a high-level signaling;

and determining the time domain symbol where the demodulation reference signal is located in the rest time domain symbols according to the time domain symbol number of the control resource set and a preset table.

12. The method of claim 10, wherein determining the presence of a demodulation reference signal on a first time domain symbol in the set of control resources comprises any one of:

or the configured time domain symbol of the control resource set does not include the demodulation reference signal, the time domain symbol at the first position in the time domain symbol of the extended control resource set is the symbol where the demodulation reference signal is located, and the time domain symbol of the extended control resource set is the sum of the time domain symbol at the first position and the time domain symbol of the first control resource set.

13. An information transmission apparatus, comprising:

a transmission module, configured to transmit information in at least one symbol of the number of time domain symbols included in the control resource set.

14. An apparatus, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the information transmission method according to any of claims 1-12.

15. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the information transmission method of any one of claims 1 to 12.