CN111278056A

CN111278056A - Information transmission method, terminal and network equipment

Info

Publication number: CN111278056A
Application number: CN201910002483.1A
Authority: CN
Inventors: 鲁智; 沈晓冬; 李娜; 陈晓航
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-01-02
Filing date: 2019-01-02
Publication date: 2020-06-12

Abstract

The invention discloses an information transmission method, a terminal and network equipment, wherein the method comprises the following steps: acquiring a Time Domain Resource Allocation (TDRA) sequence for information repeated transmission, wherein the TDRA sequence is used for indicating at least two time domain resource allocations in different time slots; and carrying out repeated transmission of the information according to at least two time domain resource allocations indicated by the TDRA sequence. In the embodiment of the invention, the TDRA sequence can indicate at least two time domain resource allocations for repeated transmission, and in different time slots, the terminal can perform repeated transmission of information according to different time domain resource allocations indicated by the TDRA sequence, so that the success rate of repeated transmission can be improved, and the reliability of transmission is improved.

Description

Information transmission method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information transmission method, a terminal, and a network device.

Background

Fifth generation (5)^thGeneration, 5G) and later mobile communication systems, need to be adapted toMore diversified scenarios and service requirements are applied, such as 5G, or New Radio (NR), including: enhanced mobile Broadband (eMBB) communication, mass Machine type communications (mtc), and high-reliability Ultra-Low latency communications (URLLC) are major scenarios that require a system to have requirements for high reliability, Low latency, large bandwidth, wide coverage, and the like. Taking URLLC service as an example, in order to meet the requirements of low-delay and high-reliability service indexes, a data time domain repeat transmission mode may be adopted, but the data repeat transmission may collide with the transmission direction of the time domain resource, for example, the transmission direction of the time domain resource corresponding to the Physical Uplink Shared Channel (PUSCH) repeat transmission may be Downlink, and the transmission direction of the time domain resource corresponding to the Physical Downlink Shared Channel (PDSCH) repeat transmission may be Uplink. Thus, when the data retransmission collides with the transmission direction of the time domain resource, the data retransmission may fail.

Disclosure of Invention

The embodiment of the invention provides an information transmission method, a terminal and network equipment, which aim to solve the problem of repeated transmission failure in the process of repeated data transmission.

In a first aspect, an embodiment of the present invention provides an information transmission method, applied to a communication device, including:

acquiring a Time Domain Resource Allocation (TDRA) sequence for information repeated transmission, wherein the TDRA sequence is used for indicating at least two time domain resource allocations in different time slots;

and carrying out repeated transmission of the information according to at least two time domain resource allocations indicated by the TDRA sequence.

In a second aspect, an embodiment of the present invention further provides a communication device, including:

an obtaining module, configured to obtain a time domain resource allocation TDRA sequence for information retransmission, where the TDRA sequence is used to indicate at least two time domain resource allocations in different time slots;

and the transmission module is used for carrying out repeated transmission of the information according to at least two time domain resource allocations indicated by the TDRA sequence.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the computer program is executed by the processor, the steps of the information transmission method are implemented.

In a fourth aspect, an embodiment of the present invention provides an information transmission method, which is applied to a network device, and includes:

and allocating a TDRA sequence for the time domain resource configured for the terminal or repeatedly transmitted by the indication information, wherein the TDRA sequence is used for indicating at least two time domain resource allocations in different time slots.

In a fifth aspect, an embodiment of the present invention provides a network device, including:

and the configuration module is used for allocating a TDRA sequence for the time domain resource configured or repeatedly transmitted by the indication information for the terminal, wherein the TDRA sequence is used for indicating at least two time domain resource allocations in different time slots.

In a sixth aspect, an embodiment of the present invention provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the processor implements the steps of the information transmission method when executing the computer program.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the information transmission method are implemented.

Therefore, in the embodiment of the invention, the TDRA sequence can indicate at least two time domain resource allocations for repeated transmission, and in different time slots, the terminal can perform repeated transmission of information according to the different time domain resource allocations indicated by the TDRA sequence, so that the method can better adapt to the time slot format indication SFI change of different time slots, reduce the resource conflict probability, improve the success rate of repeated transmission and further increase the reliability of transmission.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 shows a block diagram of a mobile communication system to which an embodiment of the present invention is applicable;

fig. 2 is a flowchart illustrating an information transmission method at a terminal side according to an embodiment of the present invention;

FIGS. 3 and 4 are schematic diagrams illustrating resource scheduling of repeated transmission according to an embodiment of the present invention;

fig. 5 is a schematic block diagram of a terminal according to an embodiment of the present invention;

FIG. 6 shows a block diagram of a terminal of an embodiment of the invention;

fig. 7 is a flowchart illustrating an information transmission method on a network device side according to an embodiment of the present invention;

FIG. 8 is a block diagram of a network device according to an embodiment of the present invention;

fig. 9 shows a block diagram of a network device according to an embodiment of the invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention, only the Base Station in the NR system is taken as an example, but does not limit the specific type of base station.

The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

The information transmission method of the embodiment of the invention is applied to a terminal, and as shown in fig. 2, the method comprises the following steps:

step 21: and acquiring a Time Domain Resource Allocation (TDRA) sequence of information repeated transmission, wherein the TDRA sequence is used for indicating at least two time domain resource allocations in different time slots.

The TDRA sequence may indicate time domain resource allocation in different time slots, that is, each time slot corresponds to an independent time domain resource allocation. In 5G and subsequent systems, the timeslot configuration is more flexible, and the timeslot format Indicator (SFI) of different timeslots is more flexible. Therefore, the TDRA sequence indicates the respective time domain resource allocation of different time slots, and the problem of resource conflict caused by flexible SFI configuration can be avoided. It should be noted that the time domain resource allocations corresponding to different timeslots may be the same or different. Wherein, the time domain resource allocation in different time slots may refer to: allocation information for time domain symbols (e.g., OFDM symbols) used for repeated transmission in different slots. Usually, corresponding TDRA values in a TDRA sequence are used for consecutive time slots, but of course, they may also be used for non-consecutive time slots.

Step 22: and carrying out repeated transmission of the information according to at least two time domain resource allocations indicated by the TDRA sequence.

The communication equipment carries out repeated transmission of information based on the time slot, can adopt a traditional mechanism to a great extent, and if the service arrives when the service is close to the time slot boundary, the time delay can be favorably reduced. Further, the terminal performs repeated transmission of information in different time slots according to respective time domain resource allocation of different time slots in the TDRA sequence.

The information transmission method of the embodiment of the invention is suitable for uplink repeated transmission, such as repeated transmission of a Physical Uplink Shared Channel (PUSCH), namely, the repeated transmission of the information is the repeated transmission of the PUSCH; the information transmission method is also suitable for downlink repeat transmission, such as Physical Downlink Shared Channel (PDSCH) repeat transmission, namely, the information repeat transmission is PDSCH repeat transmission. In this embodiment, only PUSCH retransmission and PDSCH retransmission are taken as examples, and the resource scheduling method and the retransmission method provided in the embodiments of the present invention can also be used for retransmission of other information.

In the embodiment of the present invention, the TDRA sequence includes at least two TDRA values, and the TDRA values in the TDRA sequence are used to indicate at least two of a start position, a length, and an end position of the repeated transmission in different timeslots. For example, the TDRA sequence includes at least two TDRA values, and the TDRA values in the TDRA sequence are used to indicate a start position and a length of the repeated transmission in different time slots. That is, there are a plurality of TDRA values in a TDRA sequence, and one TDRA value indicates a start position and a length of a time domain symbol for repetitive transmission in a slot. Wherein, the TDRA sequence is shown in the following table 1:

table 1 repeated transmission TDRA sequence configuration table

Wherein, the value (e.g. 00, 01, 10, 11) of a code point in table 1 corresponds to a TDRA sequence, and a TDRA sequence includes 4 TDRA values, such as { X1, X2, X3, X4}, { Y1, Y2, Y3, Y4}, { Z1, Z2, Z3, Z4} and { M1, M2, M3, M4 }. These 4 TDRA values may be used for 4 consecutive time slots. It is noted that the TDRA sequence in the embodiment of the present invention is one of the maintained TDRA sequence tables.

Taking the communication device as an example, step 21 includes: the TDRA sequence of the Information repeat transmission is received through Radio Resource Control (RRC) signaling and/or Downlink Control Information (DCI). Specifically, the terminal receives a TDRA sequence, such as { X1, X2, X3, X4} of repeated PUSCH or PDSCH transmission through RRC signaling. Alternatively, the terminal receives a TDRA sequence, such as { X1, X2, X3, X4}, for PUSCH or PDSCH repeated transmission through DCI. Alternatively, the terminal receives a TDRA sequence table (as in table 1 above) repeatedly transmitted by the PUSCH or PDSCH through RRC, and receives indication information, such as { X1, X2, X3, X4}, for activating a certain TDRA sequence in the TDRA sequence table through DCI.

Taking the communication device as the network device as an example, step 21 is: the network equipment maintains a TDRA sequence table according to the network resource allocation condition; a TDRA sequence is selected from the TDRA sequence table. Optionally, the network device maintains a TDRA sequence table (as in table 1 above) of repeated PUSCH or PDSCH transmission according to the network resource allocation, and selects a TDRA sequence from the maintained TDRA sequence table, such as { X1, X2, X3, X4 }.

In the embodiment of the present invention, a symbol transmission direction corresponding to time domain resource allocation indicated by a network device and a terminal not expecting a TDRA sequence conflicts with a transmission direction of a time slot indicated by a time slot format indication SFI. That is, the time domain symbol indicated by the TDRA sequence is not expected by the network device and the terminal to overlap with the time domain symbol indicated by the SFI indicating the opposite transmission direction. Taking PUSCH retransmission as an example, the time domain symbol indicated by the TDRA sequence used for indicating time domain resource allocation of PUSCH retransmission is not expected to overlap with the time domain symbol indicating that the transmission direction is Downlink (DL) in the SFI by the network device and the terminal. Taking PDSCH retransmission as an example, the time domain symbol indicated by the TDRA sequence for indicating time domain resource allocation of PDSCH retransmission is not expected by the network device and the terminal to overlap with the time domain symbol indicating that the transmission direction is Uplink (UL) in the SFI. Of course, the network device and the terminal do not expect the PUSCH or PDSCH transmission to overlap with a semi-static flexible symbol changed from the SFI to the dynamic flexible symbol.

In a case that the time domain symbol indicated by the TDRA sequence is not overlapped with the time domain symbol indicated by the SFI in the opposite transmission direction, that is, in a case that the symbol transmission direction corresponding to the time domain resource allocation indicated by the TDRA sequence does not conflict with the transmission direction of the time slot indicated by the time slot format indication SFI, step 22 may be implemented by: and in different time slots, carrying out repeated transmission of information according to the time domain resource allocation indicated by the TDRA sequence. That is, when the symbol transmission direction corresponding to the time domain resource allocation indicated by the TDRA sequence does not conflict with the transmission direction of the time slot indicated by the time slot format indication SFI, the terminal performs repeated transmission of information in different time slots according to the respective time domain resource allocation of the different time slots in the TDRA sequence. Taking table 1 as an example, a first transmission is performed at X1 of a first slot, a second transmission is performed at X2 of a second slot, a third transmission is performed at X3 of a third slot, and a fourth transmission is performed at X4 of a fourth slot.

Wherein a plurality of TDRA values in one TDRA sequence may indicate a plurality of candidate time domain resource allocations in one time slot; one TDRA value in one TDRA sequence may also indicate time domain resource allocation in one time slot, and the number of time slots indicated by the TDRA sequence is the same as the number of TDRA values contained in one TDRA. In addition, there may be a difference between the number of timeslots indicated by one TDRA sequence and the number of repeated transmissions, and in this scenario, if the number of repeated transmissions is more or less than the number of timeslots indicated by the TDRA sequence, the terminal may repeat or truncate the TDRA sequence, and the terminal may determine the TDRA value to be used for each timeslot according to the mode and the number of transmissions. Assuming that one TDRA value corresponds to one slot, step 22 includes: and under the condition that the number N of repeated transmission is less than or equal to the number of the TDRA values in the TDRA sequence, in different time slots, performing repeated transmission of information according to the time domain resource allocation indicated by the first N TDRA values in the TDRA sequence, wherein N is a positive integer. For example, the terminal uses 00 in table 1 as the TDRA sequence of the repeated transmission, and if the number of times of the repeated transmission is 3, the TDRA values used for the 3 repeated transmissions are { X1, X2, X3 }.

Further, step 22 further comprises: and under the condition that the number N of repeated transmission is greater than the number of the TDRA values in the TDRA sequence, performing repeated transmission of information in a polling mode in different time slots according to the time domain resource allocation indicated by the TDRA sequence until the repeated transmission reaches N times, wherein N is a positive integer. For example, the terminal uses 00 in table 1 as the TDRA sequence of the repeated transmission, and if the number of times of the repeated transmission is 8, the TDRA values used for the 8 repeated transmissions are { X1, X2, X3, X4, X1, X2, X3, X4}, respectively.

In the above embodiment, a case that a time domain symbol indicated by a TDRA sequence is not overlapped with a time domain symbol indicated by an SFI in an opposite transmission direction is described, and the following embodiment further describes a scenario that the time domain symbol indicated by the TDRA sequence is overlapped with a time domain symbol indicated by an SFI in an opposite transmission direction, that is, a case that a time domain resource colliding with a transmission direction of a time slot indicated by the SFI exists in time domain resource allocation indicated by the TDRA sequence, and step 22 may be implemented in the following manner: under the condition that time domain resources which conflict with the transmission direction of a time slot indicated by SFI exist in the time domain resource allocation indicated by the TDRA sequence, if the transmission direction of the time domain resource allocation indicated by any TDRA value in the TDRA sequence conflicts with the transmission direction of the time slot indicated by SFI, detecting whether the transmission direction of the time domain resources indicated by the TDRA value in the next time slot conflicts with the transmission direction of the time slot indicated by SFI; if not, repeating the information transmission according to the time domain resource allocation indicated by the TDRA; and if so, continuously detecting whether the transmission direction of the time domain resource indicated by the TDRA value in the next time slot conflicts with the transmission direction of the time slot indicated by the SFI or not until the transmission direction of the time domain resource indicated by the TDRA value does not conflict with the transmission direction of the time slot indicated by the SFI or the preset detection times are reached.

Taking PUSCH repeated transmission as an example, the TDRA sequence for indicating the time domain resource allocation of PUSCH repeated transmission includes a TDRA value indicating the time domain resource allocation of 2 nd repeated transmission, as shown in fig. 3, where the TDRA value indicates an OFDM symbol 4 with a start position in slot n of a time domain symbol of 2 nd repeated transmission, and the length is 4. The transmission direction of OFDM symbols 4 to 7 in SFI of slot n is downlink, so the transmission direction of the time domain resource indicated by the TDRA value collides with the transmission direction indicated by SFI, and in this case, the terminal delays the 2 nd repeated transmission of PUSCH to the next slot, i.e., slot n +1, and determines whether the transmission direction of the time domain symbol indicated by the TDRA value collides with the transmission direction indicated by SFI. As shown in fig. 3, OFDM symbols 4 to 7 in slot n +1 are flexible (flexible) symbols, and since the flexible symbols can be changed to uplink, it is determined that the transmission direction of the time domain symbol indicated by the TDRA value does not collide with the transmission direction indicated by the SFI, and at this time, the 2 nd retransmission of the PUSCH is performed in slot n +1 according to the TDRA value.

In the above, the repeated transmission of the PUSCH is taken as an example, the repeated transmission method of the PDSCH is similar to the repeated transmission method of the PUSCH, and when the transmission direction of the time domain resource allocation indicated by the TDRA value of a certain repeated transmission of the PDSCH collides with the transmission direction of the time slot indicated by the SFI, the repeated transmission of the PDSCH is delayed.

Further, it is described above that multiple TDRA values in one TDRA sequence may indicate multiple candidate time domain resource allocations in one timeslot, and the following embodiment will further describe the implementation of step 22 with reference to this scenario.

In this scenario, the TDRA sequence includes multiple TDRA values indicating allocation of time domain resources in one time slot, that is, there are multiple candidate time domain resource allocations in one time slot, the terminal preferentially uses one of the candidate time domain resources for repeat transmission, and if the transmission direction of the first time domain resource conflicts with the transmission direction indicated by the SFI, tries to use the second candidate time domain resource until determining an available candidate time domain resource, or determines that all candidate time domain resources are unavailable. Step 22 comprises: under the condition that one time slot corresponds to at least two TDRA values, determining available time domain resources in the time slot according to the at least two TDRA values in sequence; the repeated transmission of information is performed over the available time domain resources. It is worth noting that if it is determined that all candidate time domain resources indicated by the at least two TDRA values are not available, the transmission is discarded.

Taking PUSCH repeated transmission as an example, a TDRA sequence used for indicating time domain resource allocation of PUSCH repeated transmission includes two TDRA values indicating time domain resource allocation of 2 nd repeated transmission, as shown in fig. 4, a first TDRA value of the two TDRA values indicates an OFDM symbol 4 with a start position in slot n of a time domain symbol of 2 nd repeated transmission, and the length is 4. The transmission direction of OFDM symbols 4 to 7 in the SFI of slot n is downlink, then the transmission direction of the time domain resource indicated by the TDRA value collides with the transmission direction indicated by the SFI, in this case, the terminal uses the second TDRA value of the two TDRA values corresponding to slot n for the 2 nd retransmission of the PUSCH, and the second TDRA value indicates that the starting position of the time domain symbol of the 2 nd retransmission is OFDM symbol 10 in slot n, and the length is 4. As shown in fig. 4, OFDM symbols 10 to 13 in slot n are uplink symbols, the transmission direction of the time domain symbol indicated by the TDRA value does not collide with the transmission direction indicated by the SFI, and at this time, the 2 nd retransmission of the PUSCH is performed in slot n according to the second TDRA value.

In the above, only repeated transmission of the PUSCH is taken as an exemplary illustration, the repeated transmission method of the PDSCH is similar to the repeated transmission method of the PUSCH, and when the transmission direction of the time domain resource allocation indicated by the first TDRA value in a certain repeated transmission of the PDSCH collides with the transmission direction of the time slot indicated by the SFI, the resource indicated by the other TDRA value is adopted for the repeated transmission of the PDSCH.

Optionally, the repeatedly transmitted TDRA sequence corresponds to at least one offset value for indicating the number of slot offsets. Therefore, the terminal determines the time slot position of the TDRA function by using the deviation value, and repeated transmission is carried out in the time slots, so that the method can be used for a scene with fixed uplink and downlink ratio.

Specifically, step 22 includes: according to the deviation value, carrying out repeated transmission of information in different time slots according to the time domain resource allocation indicated by the TDRA sequence; wherein the number of time slots between two adjacent repeated transmissions is one of the indicated at least one offset value. That is, after determining the time domain resource of the ith repeated transmission in the time slot n, the terminal delays the offset value according to the time slot granularity, that is, performs the (i + 1) th transmission in the time slot of the n + offset value according to the TDRA value of the (i + 1) th repeated transmission.

Alternatively, when the offset value is plural, as shown in table 2:

table 2 offset value arrangement table corresponding to TDRA sequence

Code point	Offset (Offset)1	Offset 2	Offset 3
				00	X1’	X2’	X3’
01	Y1’	Y2’	Y3’
				10	Z1’	Z2’	Z3’
11	M1’	M2’	M3’

In table 2, the value of a code point (e.g., 00, 01, 10, 11) corresponds to a set of offset values, which includes 3 offset values, such as { X '1, X' 2, X '3 }, { Y' 1, Y '2, Y' 3}, { Z '1, Z' 2, Z '3 }, and { M' 1, M '2, M' 3 }. It should be noted that the set of offset values corresponding to the TDRA sequence in the embodiment of the present invention is one of a plurality of sets of offset values corresponding to different code points.

The implementation mode for performing repeated transmission of information according to the time domain resource allocation indicated by the TDRA sequence in different time slots according to the offset value comprises the following steps: when the number of the deviation values is more than 1, determining the time slot for repeated transmission according to the deviation values; in the time slot, the information is repeatedly transmitted according to the time domain resource allocation indicated by the TDRA sequence. Here, the polling is a polling repetition or truncation. When the number of TDRA values in the TDRA sequence is different from the number of corresponding offset values, the offset values can be repeated or truncated. Taking the TDRA sequence in table 1 and the offset value in table 2 as an example, the terminal and the network device may determine the time domain resource allocation for the repeated transmission according to table 1 and table 2 as shown in table 3 below:

TABLE 3 actual time domain resource allocation for repeated transmissions

In table 3, in the TDRA sequence corresponding to code point 00, X1 "is the time domain resource allocation of time slot n, X2" is the time domain resource allocation of time slot n + X1 ' (offset value 1), X3 "is the time domain resource allocation of time slot n + X2 ' (offset value 2), and X4" is the time domain resource allocation of time slot n + X3 ' (offset value 3). Offset value 1(offset1), offset value 2, and offset value 3 may be the same or different. In the embodiment of the present invention, only the TDRA sequence corresponding to code point 00 is taken as an example for description, and the time domain resource allocation indicated by the TDRA sequences corresponding to other code points is similar, so that details are not repeated.

It should be noted that the implementation manner according to the embodiment of the present invention is applicable to both the repeated transmission of the PUSCH and the repeated transmission of the PDSCH, and in the example, only the PUSCH is taken as an example for description, and those skilled in the art should understand the transmission manner adopted in the implementation of the repeated transmission of the PDSCH on the basis of the above embodiments.

In the information transmission method of the embodiment of the invention, the TDRA sequence can indicate at least two time domain resource allocations for repeated transmission, and in different time slots, the terminal can perform repeated transmission of information according to the different time domain resource allocations indicated by the TDRA sequence, so that the method can better adapt to the time slot format indication SFI changes of different time slots, reduce the resource conflict probability, improve the success rate of repeated transmission and further increase the reliability of transmission.

The above embodiments respectively describe in detail the information transmission methods in different scenarios, and the following embodiments further describe the corresponding communication devices with reference to the accompanying drawings.

As shown in fig. 5, a terminal 500 according to an embodiment of the present invention can implement obtaining a time domain resource allocation TDRA sequence for repeated information transmission in the foregoing embodiment, where the TDRA sequence is used to indicate at least two time domain resource allocations in different time slots; according to at least two time domain resource allocations indicated by the TDRA sequence, details of the information repeat transmission method are performed, and the same effect is achieved, the terminal 500 specifically includes the following functional modules:

an obtaining module 510, configured to obtain a time domain resource allocation TDRA sequence for information retransmission, where the TDRA sequence is used to indicate at least two time domain resource allocations in different time slots;

a transmission module 520, configured to perform repeated transmission of information according to at least two time domain resource allocations indicated by the TDRA sequence.

Wherein the TDRA sequence includes at least two TDRA values indicating a start position and a length of the repeated transmission in different time slots.

Wherein, the transmission module 520 includes:

and the first transmission sub-module is used for carrying out repeated transmission of information according to the time domain resource allocation indicated by the TDRA sequence under the condition that the symbol transmission direction corresponding to the time domain resource allocation indicated by the TDRA sequence does not conflict with the transmission direction of the time slot indicated by the time slot format indication SFI.

Wherein, the transmission module 520 further includes:

and the second transmission submodule is used for carrying out repeated transmission of information according to the time domain resource allocation indicated by the previous N TDRA values in the TDRA sequence under the condition that the number N of repeated transmission is less than or equal to the number of the TDRA values in the TDRA sequence, wherein N is a positive integer.

Wherein, the transmission module 520 further includes:

and the third transmission submodule is used for performing repeated transmission of information until the repeated transmission reaches N times by adopting a polling mode according to the time domain resource allocation indicated by the TDRA sequence under the condition that the number of times of the repeated transmission N is greater than the number of the TDRA values in the TDRA sequence, wherein N is a positive integer.

Wherein, the transmission module 520 further includes:

a first detection sub-module, configured to, when there is a time domain resource that conflicts with a transmission direction of a time slot indicated by an SFI in time domain resource allocation indicated by a TDRA sequence, if the transmission direction of the time domain resource allocation indicated by any TDRA value in the TDRA sequence conflicts with the transmission direction of the time slot indicated by the SFI, detect whether the transmission direction of the time domain resource indicated by a TDRA value in a next time slot conflicts with the transmission direction of the time slot indicated by the SFI;

and the fourth transmission submodule is used for carrying out repeated transmission of the information according to the time domain resource allocation indicated by the TDRA if the conflict does not exist.

Wherein, the transmission module 520 further includes:

and the second detection submodule is used for continuously detecting whether the transmission direction of the time domain resource indicated by the TDRA value in the next time slot conflicts with the transmission direction of the time slot indicated by the SFI if the time domain resource conflicts with the SFI, until the transmission direction of the time domain resource indicated by the TDRA value does not conflict with the transmission direction of the time slot indicated by the SFI, or the preset detection times are reached.

Wherein, the transmission module 520 further includes:

a first determining submodule, configured to determine, in a time slot, available time domain resources sequentially according to at least two TDRA values when the time slot corresponds to the at least two TDRA values;

and the fifth transmission submodule is used for carrying out repeated transmission of information on the available time domain resources.

Wherein, the TDRA sequence corresponds to at least one offset value for indicating the offset number of the time slot.

Wherein, the transmission module 520 includes:

a sixth transmission submodule, configured to perform repeated transmission of information according to the time domain resource allocation indicated by the TDRA sequence in different time slots according to the offset value; and the number of the time slots between two adjacent repeated transmissions is one of at least one offset value.

Wherein the sixth transmission sub-module comprises:

a determining unit, configured to determine, when the number of offset values is greater than 1, a time slot used for repeated transmission according to the offset value;

and the transmission unit is used for repeatedly transmitting the information in the time slot according to the time domain resource allocation indicated by the TDRA sequence.

Wherein, the obtaining module 510 includes:

and the receiving submodule is used for receiving the TDRA sequence of the information repeated transmission through the radio resource control RRC signaling or the downlink control information DCI.

Wherein the information repeated transmission comprises: and repeatedly transmitting a Physical Uplink Shared Channel (PUSCH) or repeatedly transmitting a Physical Downlink Shared Channel (PDSCH).

The terminal of the embodiment of the invention can repeatedly transmit information according to different time domain resource allocations indicated by the TDRA sequence in different time slots, thereby improving the success rate of repeated transmission and further increasing the reliability of transmission.

Further, fig. 6 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 60 includes, but is not limited to: radio frequency unit 61, network module 62, audio output unit 63, input unit 64, sensor 65, display unit 66, user input unit 67, interface unit 68, memory 69, processor 610, and power supply 611. Those skilled in the art will appreciate that the terminal configuration shown in fig. 6 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 61 is configured to acquire a time domain resource allocation TDRA sequence for information retransmission, where the TDRA sequence is used to indicate at least two time domain resource allocations in different time slots;

a processor 610, configured to perform repeated transmission of information in different timeslots according to at least two time domain resource allocations indicated by the TDRA sequence.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 61 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 610; in addition, the uplink data is transmitted to the base station. Typically, the radio frequency unit 61 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 61 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user via the network module 62, such as to assist the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 63 may convert audio data received by the radio frequency unit 61 or the network module 62 or stored in the memory 69 into an audio signal and output as sound. Also, the audio output unit 63 may also provide audio output related to a specific function performed by the terminal 60 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 63 includes a speaker, a buzzer, a receiver, and the like.

The input unit 64 is used to receive an audio or video signal. The input Unit 64 may include a Graphics Processing Unit (GPU) 641 and a microphone 642, and the Graphics processor 641 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 66. The image frames processed by the graphic processor 641 may be stored in the memory 69 (or other storage medium) or transmitted via the radio frequency unit 61 or the network module 62. The microphone 642 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 61 in case of the phone call mode.

The terminal 60 also includes at least one sensor 65, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 661 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 661 and/or a backlight when the terminal 60 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 65 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 66 is used to display information input by the user or information provided to the user. The Display unit 66 may include a Display panel 661, and the Display panel 661 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 67 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 67 includes a touch panel 671 and other input devices 672. The touch panel 671, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 671 (e.g., operations by a user on or near the touch panel 671 using a finger, a stylus, or any other suitable object or attachment). The touch panel 671 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 610, receives a command from the processor 610, and executes the command. In addition, the touch panel 671 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 671, the user input unit 67 may also include other input devices 672. In particular, the other input devices 672 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 671 can be overlaid on the display panel 661, and when the touch panel 671 detects a touch operation on or near the touch panel 671, the touch panel 671 can be transmitted to the processor 610 to determine the type of the touch event, and then the processor 610 can provide a corresponding visual output on the display panel 661 according to the type of the touch event. Although the touch panel 671 and the display panel 661 are shown as two separate components in fig. 6 to implement the input and output functions of the terminal, in some embodiments, the touch panel 671 and the display panel 661 can be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 68 is an interface for connecting an external device to the terminal 60. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 68 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 60 or may be used to transmit data between the terminal 60 and external devices.

The memory 69 may be used to store software programs as well as various data. The memory 69 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 (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 69 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 volatile solid state storage device.

The processor 610 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 69 and calling data stored in the memory 69, thereby performing overall monitoring of the terminal. Processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 610.

The terminal 60 may further include a power supply 611 (e.g., a battery) for supplying power to various components, and preferably, the power supply 611 may be logically connected to the processor 610 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.

In addition, the terminal 60 includes some functional modules that are not shown, and will not be described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, which includes a processor 610, a memory 69, and a computer program stored in the memory 69 and capable of running on the processor 610, where the computer program is executed by the processor 610 to implement each process of the above-mentioned information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The above embodiment describes the information transmission method of the present invention from the terminal side, and the following embodiment further describes the information transmission method of the network device side with reference to the drawings.

As shown in fig. 7, an embodiment of the present invention provides an information transmission method, which is applied to a network device side, and the method includes the following steps:

step 71: and allocating a TDRA sequence for the time domain resource configured for the terminal or repeatedly transmitted by the indication information, wherein the TDRA sequence is used for indicating at least two time domain resource allocations in different time slots.

The TDRA sequence may indicate time domain resource allocation in different time slots, that is, each time slot corresponds to an independent time domain resource allocation. It should be noted that the time domain resource allocations corresponding to different timeslots may be the same or different. Wherein, the time domain resource allocation in different time slots may refer to: allocation information for time domain symbols (e.g., OFDM symbols) used for repeated transmission in different slots. Usually, corresponding TDRA values in a TDRA sequence are used for consecutive time slots, but of course, they may also be used for non-consecutive time slots.

The information transmission method of the embodiment of the invention is suitable for uplink repeated transmission, such as repeated transmission of the PUSCH, namely the repeated transmission of the information is repeated transmission of the PUSCH; the information transmission method is also suitable for downlink repeat transmission, such as repeat transmission of PDSCH, i.e. the information repeat transmission is PDSCH repeat transmission.

Wherein the TDRA sequence comprises at least two TDRA values, and the TDRA values in the TDRA sequence are used for indicating at least two items of a start position, a length and an end position of the repeated transmission in different time slots. For example, the TDRA sequence includes at least two TDRA values, and the TDRA values in the TDRA sequence are used to indicate a start position and a length of the repeated transmission in different time slots.

Wherein step 71 comprises: configuring at least one TDRA sequence for information repeated transmission of a terminal through Radio Resource Control (RRC) signaling; or, one TDRA sequence is indicated for information repeated transmission of the terminal through downlink control information DCI. For example, a terminal is configured with a TDRA sequence through RRC signaling, or a terminal is configured with a TDRA sequence through DCI, or a terminal is configured with a TDRA sequence table including multiple TDRA sequences through RRC signaling, and then a TDRA sequence is indicated for information repeat transmission of the terminal through downlink control information DCI. Specifically, the network device transmits one TDRA sequence of repeated PUSCH or PDSCH transmission through RRC signaling. Or, the network device transmits one TDRA sequence of PUSCH or PDSCH repeated transmission through DCI. Or, the network device transmits a TDRA sequence table repeatedly transmitted by the PUSCH or PDSCH through RRC, and transmits indication information for activating a certain TDRA sequence in the TDRA sequence table through DCI.

Further, the TDRA sequence corresponds to at least one offset value indicating the number of slot offsets. Therefore, the terminal determines the time slot position of the TDRA function by using the deviation value, and repeated transmission is carried out in the time slots, so that the method can be used for a scene with fixed uplink and downlink ratio.

In the information transmission method of the embodiment of the invention, the TDRA sequence configured by the network equipment for the terminal can indicate at least two time domain resource allocations for repeated transmission, so that the terminal can perform repeated transmission of information in different time slots according to the different time domain resource allocations indicated by the TDRA sequence, the success rate of repeated transmission can be improved, and the reliability of transmission is improved.

The above embodiments describe information transmission methods in different scenarios, and the network device corresponding to the method will be further described with reference to the accompanying drawings.

As shown in fig. 8, a network device 800 according to an embodiment of the present invention can implement a TDRA sequence allocated to a time domain resource configured or repeatedly transmitted by an indication information in the foregoing embodiment, where the TDRA sequence is used to indicate details of at least two time domain resource allocation methods in different time slots, and achieve the same effect, and the network device 800 specifically includes the following functional modules:

a configuring module 810, configured to allocate a TDRA sequence to the time domain resource configured for the terminal or repeatedly transmitted by the indication information, where the TDRA sequence is used to indicate at least two time domain resource allocations in different time slots.

Wherein the configuration module 810 comprises:

the configuration submodule is used for configuring at least one TDRA sequence for the information repeated transmission of the terminal through a Radio Resource Control (RRC) signaling;

or,

and the indication submodule is used for indicating a TDRA sequence for the information repeated transmission of the terminal through the downlink control information DCI.

The information repeated transmission comprises Physical Uplink Shared Channel (PUSCH) repeated transmission or Physical Downlink Shared Channel (PDSCH) repeated transmission.

The network device of the embodiment of the invention can indicate at least two time domain resource allocations for repeated transmission by the TDRA sequence configured for the terminal, so that the terminal can perform repeated transmission of information in different time slots according to the different time domain resource allocations indicated by the TDRA sequence, thereby improving the success rate of repeated transmission and further increasing the reliability of transmission.

It should be noted that the division of the modules of the network device and the terminal is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general purpose processor, such as a Central Processing Unit (CPU) or other processor that can invoke the program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

It is worth pointing out that, in the embodiment of the present invention, the TDRA sequence may indicate at least two time domain resource allocations for repeated transmission, and in different time slots, the terminal may perform repeated transmission of information according to different time domain resource allocations indicated by the TDRA sequence, so that it may better adapt to the time slot format indication SFI changes of different time slots, reduce the resource collision probability, improve the success rate of repeated transmission, and thereby increase the reliability of transmission.

In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the steps in the information transmission method described above are implemented. Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the information transmission method as described above.

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 9, the network device 900 includes: antenna 91, radio frequency device 92, baseband device 93. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the rf device 92 receives information via the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted and transmits the information to the rf device 92, and the rf device 92 processes the received information and transmits the processed information through the antenna 91.

The above-mentioned frequency band processing means may be located in the baseband means 93, and the method performed by the network device in the above embodiment may be implemented in the baseband means 93, where the baseband means 93 includes a processor 94 and a memory 95.

The baseband device 93 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 9, wherein one of the chips, for example, the processor 94, is connected to the memory 95 to call up the program in the memory 95 to perform the network device operation shown in the above method embodiment.

The baseband device 93 may also include a network interface 96, such as a Common Public Radio Interface (CPRI), for exchanging information with the rf device 92.

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

The memory 95 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 95 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored on the memory 95 and executable on the processor 94, the processor 94 calling the computer program in the memory 95 to execute the method performed by the modules shown in fig. 8.

In particular, the computer program when invoked by the processor 94 is operable to perform: and allocating a TDRA sequence for the time domain resource configured for the terminal or repeatedly transmitted by the indication information, wherein the TDRA sequence is used for indicating at least two time domain resource allocations in different time slots.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. An information transmission method applied to a terminal is characterized by comprising the following steps:

and performing repeated transmission of information according to at least two time domain resource allocations indicated by the TDRA sequence.

2. The information transmission method according to claim 1, wherein the TDRA sequence comprises at least two TDRA values indicating a start position and a length of a repeated transmission in different time slots.

3. The information transmission method according to claim 2, wherein the step of performing repeated transmission of information according to at least two time domain resource allocations indicated by the TDRA sequence comprises:

and under the condition that the symbol transmission direction corresponding to the time domain resource allocation indicated by the TDRA sequence does not conflict with the transmission direction of the time slot indicated by the time slot format indication SFI, carrying out repeated transmission of information according to the time domain resource allocation indicated by the TDRA sequence.

4. The information transmission method according to claim 2, wherein the step of performing repeated transmission of information according to at least two time domain resource allocations indicated by the TDRA sequence comprises:

and under the condition that the number N of repeated transmission is less than or equal to the number of the TDRA values in the TDRA sequence, performing repeated transmission of information according to the time domain resource allocation indicated by the previous N TDRA values in the TDRA sequence, wherein N is a positive integer.

5. The information transmission method according to claim 2, wherein the step of performing repeated transmission of information according to at least two time domain resource allocations indicated by the TDRA sequence comprises:

and under the condition that the number N of repeated transmission is greater than the number of TDRA values in the TDRA sequence, performing repeated transmission of information in a polling mode according to the time domain resource allocation indicated by the TDRA sequence until the repeated transmission reaches N times, wherein N is a positive integer.

6. The information transmission method according to claim 2, wherein the step of performing repeated transmission of information according to at least two time domain resource allocations indicated by the TDRA sequence comprises:

under the condition that time domain resources which conflict with the transmission direction of a time slot indicated by an SFI exist in the time domain resource allocation indicated by the TDRA sequence, if the transmission direction of the time domain resource allocation indicated by any TDRA value in the TDRA sequence conflicts with the transmission direction of the time slot indicated by the SFI, detecting whether the transmission direction of the time domain resources indicated by the TDRA value in the next time slot conflicts with the transmission direction of the time slot indicated by the SFI;

and if not, carrying out repeated transmission of information according to the time domain resource allocation indicated by the TDRA.

7. The information transmission method according to claim 6, wherein after the step of detecting whether the transmission direction of the time domain resource indicated by the TDRA value in the next time slot conflicts with the transmission direction of the time slot indicated by the SFI, the method further comprises:

and if so, continuing to detect whether the transmission direction of the time domain resource indicated by the TDRA value in the next time slot conflicts with the transmission direction of the time slot indicated by the SFI or not until the transmission direction of the time domain resource indicated by the TDRA value does not conflict with the transmission direction of the time slot indicated by the SFI or the preset detection times are reached.

8. The information transmission method according to claim 2, wherein the step of performing repeated transmission of information according to at least two time domain resource allocations indicated by the TDRA sequence comprises:

under the condition that one time slot corresponds to at least two TDRA values, determining available time domain resources in one time slot in sequence according to the at least two TDRA values;

and repeatedly transmitting the information on the available time domain resources.

9. The information transmission method of claim 1, wherein the TDRA sequence corresponds to at least one offset value indicating a number of slot offsets.

10. The information transmission method according to claim 9, wherein the step of performing repeated transmission of information in different time slots according to at least two time domain resource allocations indicated by the TDRA sequence comprises:

according to the deviation value, carrying out repeated transmission of information in different time slots according to the time domain resource allocation indicated by the TDRA sequence; and the number of time slots between two adjacent repeated transmissions is one of the at least one offset value.

11. The information transmission method according to claim 10, wherein the step of performing repeated transmission of information in different time slots according to the time domain resource allocation indicated by the TDRA sequence according to the offset value comprises:

when the number of the deviation values is more than 1, determining a time slot for repeated transmission according to the deviation values;

and in the time slot, carrying out repeated transmission of information according to the time domain resource allocation indicated by the TDRA sequence.

12. The information transmission method according to claim 1, wherein the step of obtaining the Time Domain Resource Allocation (TDRA) sequence of the repeated transmission of information comprises:

and receiving the TDRA sequence of the information repeated transmission through the radio resource control RRC signaling or the downlink control information DCI.

13. The information transmission method according to claim 1, wherein the information repetition transmission comprises: and repeatedly transmitting a Physical Uplink Shared Channel (PUSCH) or repeatedly transmitting a Physical Downlink Shared Channel (PDSCH).

14. A terminal, comprising:

and a transmission module, configured to perform repeated transmission of information according to at least two time domain resource allocations indicated by the TDRA sequence.

15. The terminal of claim 14, wherein the TDRA sequence comprises at least two TDRA values indicating a starting position and a length of a repeated transmission in different time slots.

16. The terminal of claim 15, wherein the transmission module comprises:

and the first transmission submodule is used for carrying out repeated transmission of information according to the time domain resource allocation indicated by the TDRA sequence under the condition that the symbol transmission direction corresponding to the time domain resource allocation indicated by the TDRA sequence does not conflict with the transmission direction of the time slot indicated by the time slot format indication SFI.

17. The terminal of claim 15, wherein the transmission module further comprises:

and a second transmission sub-module, configured to, when the number of times N of repeated transmission is less than or equal to the number of TDRA values in the TDRA sequence, perform repeated transmission of information according to time domain resource allocation indicated by the previous N TDRA values in the TDRA sequence, where N is a positive integer.

18. The terminal of claim 15, wherein the transmission module further comprises:

19. The terminal of claim 15, wherein the transmission module further comprises:

a first detection sub-module, configured to, when there is a time domain resource that conflicts with a transmission direction of a time slot indicated by an SFI in time domain resource allocation indicated by the TDRA sequence, if the transmission direction of the time domain resource allocation indicated by any TDRA value in the TDRA sequence conflicts with the transmission direction of the time slot indicated by the SFI, detect whether the transmission direction of the time domain resource indicated by the TDRA value in a next time slot conflicts with the transmission direction of the time slot indicated by the SFI;

and the fourth transmission submodule is used for carrying out repeated transmission of information according to the time domain resource allocation indicated by the TDRA if the information does not conflict with the TDRA.

20. The terminal of claim 19, wherein the transmission module further comprises:

and if so, continuing to detect whether the transmission direction of the time domain resource indicated by the TDRA value in the next time slot conflicts with the transmission direction of the time slot indicated by the SFI until the transmission direction of the time domain resource indicated by the TDRA value does not conflict with the transmission direction of the time slot indicated by the SFI or reaches a preset detection frequency.

21. The terminal of claim 15, wherein the transmission module further comprises:

and the fifth transmission submodule is used for repeatedly transmitting the information on the available time domain resources.

22. The terminal of claim 14, wherein the TDRA sequence corresponds to at least one offset value indicating a number of slot offsets.

23. The terminal of claim 22, wherein the transmission module comprises:

a sixth transmission submodule, configured to perform repeated transmission of information in different time slots according to the time domain resource allocation indicated by the TDRA sequence and according to the offset value; and the number of time slots between two adjacent repeated transmissions is one of the at least one offset value.

24. The terminal of claim 23, wherein the sixth transmission sub-module comprises:

a determining unit, configured to determine, when the number of the offset values is greater than 1, a time slot used for repeated transmission according to the offset values;

and a transmission unit, configured to perform repeated transmission of information in the time slot according to the time domain resource allocation indicated by the TDRA sequence.

25. The terminal of claim 14, wherein the obtaining module comprises:

26. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and running on the processor, which computer program, when executed by the processor, carries out the steps of the information transmission method according to any one of claims 1 to 13.

27. An information transmission method applied to a network device is characterized by comprising the following steps:

28. The information transmission method of claim 27, wherein the TDRA sequence comprises at least two TDRA values indicating a start position and a length of the repeated transmission in different time slots.

29. The information transmission method of claim 27, wherein the TDRA sequence corresponds to at least one offset value indicating a number of slot offsets.

30. The information transmission method of claim 27, wherein the step of allocating a TDRA sequence to the time domain resource configured for the terminal or indicating the repeated transmission of the information comprises:

configuring at least one TDRA sequence for information repeated transmission of a terminal through Radio Resource Control (RRC) signaling;

or,

and indicating a TDRA sequence for the information repeated transmission of the terminal through downlink control information DCI.

31. The information transmission method according to claim 27, wherein the information repetition transmission comprises: and repeatedly transmitting a Physical Uplink Shared Channel (PUSCH) or repeatedly transmitting a Physical Downlink Shared Channel (PDSCH).

32. A network device, comprising:

33. A network device comprising a processor, a memory, and a computer program stored on the memory and running on the processor, the processor implementing the steps of the information transmission method according to any one of claims 27 to 31 when executing the computer program.

34. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the information transmission method according to one of claims 1 to 13, 27 to 31.