WO2021207975A1 - Time domain resource determination method and apparatus - Google Patents

Abstract

Provided are a time domain resource determination method and apparatus. The method comprises: a terminal device receiving first time domain resource allocation information from a network device; and on the basis of the first time domain resource allocation information, determining time domain resources of a data channel that is repeatedly transmitted in a time slot and/or between time slots. By means of the embodiments of the present application, the coverage of a data channel can be improved.

Description

Time domain resource determination method and device Technical field

This application relates to the field of communication technology, and in particular to a method and device for determining time domain resources.

Background technique

The new radio (NR) system is mainly to support enhanced mobile broadband (eMBB) services. In fact, in addition to the eMBB service, there are other services, such as sensor networks, video surveillance, etc. The terminal equipment supporting these services has a lower capability than the terminal equipment supporting the eMBB service. Therefore, the NR system needs to be optimized for these services and low-capacity terminal equipment. Such a system is called an NR-light system.

In the NR system, the data channel does not support repeated transmission. In the NR-light system, if the coverage enhancement of the data channel is considered, the physical downlink shared channel (PDSCH) and the physical uplink shared channel (PUSCH) need to be introduced for repeated transmission, so the data needs to be determined How does the channel perform repeated transmissions.

Summary of the invention

The embodiments of the present application provide a method and device for determining time domain resources.

In the first aspect, an embodiment of the present application provides a method for determining a time domain resource, which is applied to a terminal device, and the method includes:

Receiving first time domain resource allocation information, and determining, based on the first time domain resource allocation information, a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots.

In the second aspect, an embodiment of the present application provides a method for determining a time domain resource, which is applied to a network device, and the method includes:

Sending the first time domain resource allocation information, where the first time domain resource allocation information is used to determine the time domain resources of the data channel that is repeatedly transmitted in the time slot and/or between the time slots.

In a third aspect, an embodiment of the present application provides an apparatus for determining a time domain resource, which is applied to a terminal device, and the apparatus includes:

The communication unit is configured to receive first time domain resource allocation information;

The processing unit is configured to determine, based on the first time domain resource allocation information, a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots.

In a fourth aspect, an embodiment of the present application provides an apparatus for determining a time domain resource, which is applied to a network device, and the apparatus includes:

The communication unit is configured to send first time-domain resource allocation information, where the first time-domain resource allocation information is used to determine time-domain resources of a data channel that is repeatedly transmitted in and/or between time slots.

In a fifth aspect, embodiments of the present application provide a computer device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be processed by the above The above program includes instructions for executing the steps in the method described in the first aspect or the second aspect of the embodiments of the present application.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium, wherein the above-mentioned computer-readable storage medium stores a computer program for electronic data exchange. Wherein, the above-mentioned computer program causes the computer to execute part or all of the steps described in the method described in the first aspect or the second aspect of the embodiments of the present application.

In a seventh aspect, an embodiment of the present application provides a computer program product, wherein the above-mentioned computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the above-mentioned computer program is operable to cause a computer to execute as implemented in this application. Examples include part or all of the steps described in the method described in the first aspect or the second aspect. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, the data channel can be repeatedly transmitted in the time slot and/or between the time slots, which improves the coverage of the data channel. In addition, the repeated transmission of the data channel is completed in the time slot, which can reduce the transmission delay of the data channel; the repeated transmission of the data channel is completed in the time slot and between the time slots, which can meet the greater number of retransmissions.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained from these drawings.

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

Figure 2 is a schematic diagram of resource allocation provided by an embodiment of the present application;

FIG. 3 is another schematic diagram of resource allocation provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of channel transmission according to an embodiment of the present application;

FIG. 5 is a schematic flowchart of a method for determining time domain resources provided by an embodiment of the present application;

6 is a schematic diagram of a time domain resource of a data channel repeatedly transmitted in a time slot provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of time domain resources of a data channel that is repeatedly transmitted between time slots according to an embodiment of the present application; FIG.

FIG. 8 is a schematic diagram of time domain resources of a data channel that is repeatedly transmitted in a time slot and between time slots according to an embodiment of the present application;

FIG. 9 is a schematic diagram of another time domain resource of a data channel that is repeatedly transmitted in a time slot provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of another time domain resource of a data channel that is repeatedly transmitted between time slots according to an embodiment of the present application;

FIG. 11 is a schematic diagram of another time domain resource of a data channel that is repeatedly transmitted in a time slot and between time slots provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of time domain resources of a data channel for repeated transmission provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of an apparatus for determining a time domain resource provided by an embodiment of the present application;

FIG. 14 is a schematic structural diagram of a computer device provided by an embodiment of the present application.

Detailed ways

The embodiments of the present application will be described in detail below in conjunction with the accompanying drawings of the specification.

In order to better understand the solutions of the embodiments of the present application, the following first introduces related terms and concepts that may be involved in the embodiments of the present application.

1) A terminal device is a device with wireless communication capabilities, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air ( For example, airplanes, balloons, satellites, etc.). The terminal device can be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and an industrial control (industrial control) terminal device. Wireless terminal in control), wireless terminal in self-driving (self-driving), wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in smart home (smart home) Terminal and so on. The terminal device may also be a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, a computer device, or other processing device connected to a wireless modem. In different networks, terminal equipment can be called different names, such as: terminal equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication Device, user agent or user device, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), Terminal equipment in 5G network or future evolution network, etc.

2) A network device is a device deployed on a wireless access network to provide wireless communication functions. For example, the network device may be a radio access network (Radio Access Network, RAN) device on the access network side of a cellular network. The so-called RAN device is a device that connects terminal devices to the wireless network, including but not limited to: Evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B, NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver) Station, BTS), home base station (for example, Home evolved Node B, or Home Node B, HNB), base band unit (BBU), management entity (Mobility Management Entity, MME); for another example, network equipment can also be It is a node device in a wireless local area network (WLAN), such as an access controller (AC), a gateway, or a WIFI access point (Access Point, AP); for another example, the network device can also be The transmission node or receiving point (transmission reception point, TRP or TP) in the NR system, etc.

In the first part, the communication system and background of the technical solution disclosed in this application are introduced as follows.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application. The communication system includes a network device and a terminal device. As shown in Figure 1, network devices can communicate with terminal devices. The communication system can be a global system for mobile communication (CSM), code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, global Worldwide interoperability for microwave access (WiMAX) systems, long term evolution (LTE) systems, 5G communication systems (such as new radio (NR)), communication systems that integrate multiple communication technologies ( For example, a communication system that integrates LTE technology and NR technology), or a subsequent evolution communication system. The form and quantity of the network equipment and terminal equipment shown in FIG. 1 are only for example, and do not constitute a limitation to the embodiment of the present application.

Downlink data transmission in NR

When a network device schedules downlink data transmission through downlink control information (DCI) (such as DCI format 1_0 or DCI format 1_1) authorized by the downlink (DL), it will carry the physical downlink shared channel in the DCI (physical downlink shared channel, PDSCH) scheduling information, the scheduling information includes time domain and frequency domain resource allocation information. Time domain resource allocation information is indicated by the time domain resource allocation (TDRA) field. This field contains 4 bits and can indicate 16 different rows in a resource allocation table. Each row contains different resource allocation combinations, such as The starting symbol S of the PDSCH, the length L, k0, and different types, etc., k0 represents the number of offset slots between the slot where the DCI is located and the slot where the PDSCH is located. In NR, the starting symbol and length of the PDSCH are no longer fixed, but the starting symbol S and the length L of the PDSCH in the scheduling time slot are indicated through the TDRA field in the DCI. The values of S and L are not arbitrary, but are jointly coded to form a start and length indicator (SLIV). The optional range of values is shown in Table 1 below.

Table 1

CP in Table 1 is a cyclic prefix, DMRS is a demodulation reference signal (demodulation reference signal), and dmrs-typeA-postions is a high-level parameter in the master information block (MIB) message, which refers to It is the position of PDSCH DMRS in the case of TypeA.

There are two ways of time domain resource allocation in Table 1: Type A and Type B. The difference between Type A and Type B lies in the different ranges of S and L candidate values corresponding to the two methods. Type A is mainly oriented to slot-based services, S is relatively high, and L is relatively long. Type B is mainly oriented to ultra-reliable and low latency communications (URLLC) services, and requires high latency. Therefore, the location of S is more flexible to transmit URLLC services that arrive at any time. L is shorter. Can reduce transmission delay. The following Table 2 is taken as an example. The default table corresponding to the TDRA field is used to determine the meaning of the TDRA field in the DCI. When the terminal device receives the DCI, it can determine the SLIV corresponding to the TDRA field in the received DCI according to Table 2.

Table 2

There are two ways to allocate frequency domain resources of the PDSCH: Type0 and Type1. The Type0 frequency domain resource allocation method has a concept of a resource block group (resource block group, RBG), that is, several RBs are collectively called an RBG. The specific number of RBs together is called an RBG, and radio resource control (radio resource control, RRC) configuration (such as configuration 1 and configuration 2) and bandwidth part size (bandwidth part size, BWP) are shown in Table 3.

table 3

BWP		configuration 1	configuration 2
1-36	2	4
37-72	4	8
73-144	8	16
145-275	16	16

Each RBG will have a 1bit corresponding, if this bit is set to 1, it means that the RBG is allocated to the PDSCH. As shown in Figure 2 below, assuming that the bandwidth of the BWP is 14 RBs, the RRC configuration RBG is Configuration1, and Table 3 shows that the corresponding RBG Size is 2. In Figure 2, the gray RBG represents the RBG allocated to the terminal device, and the frequency domain resource allocation can be represented by "0101010" at this time. Type0 resource allocation supports continuous allocation and non-continuous frequency domain resource allocation.

The Type1 frequency domain resource allocation method forms a resource indication value (RIV) by jointly encoding the starting position (S) and the length (L) of the resource. One set of (S, L) corresponds to one RIV, and the terminal device can deduce the corresponding (S, L) through the RIV. As shown in Fig. 3, assuming that S=2 and L=7 are obtained according to the RIV value, the corresponding starting RB is RB No. 2 (the third RB), and then 7 RBs are continuously occupied. Type1 frequency domain resource allocation can only allocate continuous frequency domain resources.

Uplink data transmission in NR

In the NR system, network equipment sends uplink (uplink, UL) authorized DCI (such as DCI format 0_0 or DCI format 0_1) to schedule physical uplink shared channel (PUSCH) transmission.

When the network device schedules uplink data transmission through the DCI of the UL grant, it will carry a TDRA field in the DCI. The TDRA field is 4 bits and can indicate 16 different rows in a resource allocation table. Each row contains a different resource allocation combination. , Such as PUSCH starting position S, length L, k2, and different types, etc., k2 represents the number of offset slots between the slot where the DCI is located and the slot where the PUSCH is located. The types of PUSCH time domain resource allocation include Type A and Type B. The difference between Type A and Type B lies in the different ranges of S and L candidate values corresponding to the two methods. Type A is mainly for slot-based services, S is relatively high, and L is relatively long. Type B is mainly oriented to URLLC services and requires high delay, so the location of S is more flexible to transmit URLLC services that arrive at any time, and L is shorter, which can reduce transmission delay. The optional value ranges of S and L are shown in Table 4 below.

Table 4

As shown in Table 5, Table 5 is a PUSCH time-domain resource allocation table, and a type of time-domain resource allocation information in the DCI indicator table is given to the terminal device.

table 5

Row index	PUSCH mapping type	k2	S		L
1	Type A		j	0	14

2	Type A		j	0	12
3	Type A		j	0	10
4	Type B		j	2	10
5	Type B		j	4	10
6	Type B		j	4	8
7	Type B		j	4	6
8	Type A	j+1	0	14
9	Type A	j+1	0	12
10	Type A	j+1	0	10
11	Type A	j+2	0	14
12	Type A	j+2	0	12
13	Type A	j+2	0	10
14	Type B		j	8	6
15	Type A	j+3	0	14
16	Type A	j+3	0	10

There are two ways to allocate PUSCH frequency domain resources: Type0 and Type1. The allocation mode of the frequency domain resources of the PUSCH can be configured through high-level signaling, and can also be dynamically indicated through DCI. The Type0 frequency domain resource allocation method uses a bitmap to indicate the RBG allocated to the terminal device. The number of RBs included in the RBG is related to the BWP by the high-level parameter configuration (such as Configuration 1 and Configuration 2), as shown in Table 3.

The Type1 frequency domain resource allocation method forms an RIV by jointly encoding the start position (S) and length (L) of the resource. A group of (S, L) has a one-to-one correspondence with a RIV value, and the terminal device can deduce the corresponding (S, L) through the RIV. S represents the position of the virtual RB, and L represents the number of consecutive RBs allocated.

PDSCH and PUSCH in MTC system

In a machine type communication (MTC) system, both the machine physical downlink control channel (PDCCH) and the physical downlink shared channel (PDSCH) can be repeatedly transmitted. The starting position of the repeated transmission of the MPDCCH is determined by the parameters configured by the higher layer. The number of repeated transmissions of the MPDCCH and PDSCH are respectively determined by the parameters configured by the higher layer and the number of repetitions indicated in the DCI. The repeated transmission of MPDCCH is transmitted in the number of repeated downlink subframes, and the second one after the last subframe of MPDCCH transmission. Reduced bandwidth and low complexity/coverage enhancement (bandwidth reduced low complexity/coverage enhancement, BL/CE, is in MTC The type of terminal equipment introduced by the system) the downlink subframe starts to continuously transmit the PDSCH of N BL/CE downlink subframes. Among them, the BL/CE subframe is a subframe configured by a higher layer that can be used for BL/CE terminal equipment transmission. As shown in Figure 4, the number of repetitions of MPDDCH is 4, the number of repetitions of PDSCH is 16, PDSCH starts at the second BL/CE downlink subframe after the last subframe of MPDCCH transmission, SFN in Figure 4 is the system frame number (System Frame Number).

The transmission of PUSCH also supports repeated transmission. The high-layer signaling configures the maximum number of repeated transmissions of the PUSCH, and the number of repeated transmissions of the PUSCH can be dynamically adjusted through DCI.

In the second part, the scope of protection of the rights disclosed in the embodiments of this application is introduced as follows.

Please refer to FIG. 5. FIG. 5 is a schematic flowchart of a method for determining a time domain resource according to an embodiment of the present application. As shown in the figure, the method for determining a time domain resource includes the following operations.

Step 501: The network device sends first time domain resource allocation information.

Step 502: The terminal device receives the first time domain resource allocation information, and based on the first time domain resource allocation information, determines the time domain resources of the data channel that is repeatedly transmitted in the time slot and/or between the time slots.

Among them, the data channel can be PDSCH or PUSCH.

Wherein, the first time domain resource allocation information includes at least one of the following information: the mapping type of the data channel, the starting position of the resource, the length of the resource, the time slot where the first time domain resource allocation information is located, and the location where the data channel is located. The number of offset slots between slots.

Wherein, the first time domain resource allocation information includes SLIV information, and the SLIV information includes information, see Table 2 above.

Wherein, the network device indicates the first time domain resource allocation information through DCI.

Among them, time domain resources include symbols in time slots.

Among them, if the data channel is an uplink data channel, after determining the time domain resources, the terminal device repeatedly transmits the data channel based on the determined time domain resources; if the data channel is an uplink data channel, after determining the time domain resources, the terminal The device repeatedly receives the data channel based on the determined time domain resource.

In an implementation manner of the present application, the method further includes:

The number of retransmissions for the network device to send the data channel; the number of retransmissions for the terminal device to receive the data channel;

The determining based on the first time domain allocation information the time domain resources of the data channel repeatedly transmitted in the time slot and/or between the time slots includes: based on the first time domain allocation information and the data channel The number of retransmissions determines the time domain resources of the data channel that is repeatedly transmitted in the time slot and/or between the time slots.

Among them, the number of retransmissions of the data channel is configured by the network equipment through DCI or high-level signaling.

In the existing MTC system, the repeated transmission of PDSCH and PUSCH is in units of subframes. In the existing NR technology, the scheduled time domain resources of the PDSCH and PUSCH may include several symbols in one time slot, depending on the SLIV information carried in the scheduled DCI. If the repeated transmission of PDSCH and PUSCH is indicated in the NR system, the repeated transmission of PDSCH and PUSCH in the scheduled time slot can be realized.

In an implementation manner of the present application, the method further includes: the terminal device determines a time domain resource determination rule, and the time domain resource determination rule is used to determine the time domain resource of the data channel.

Optionally, the terminal device determining the time domain resource determination rule includes: the terminal device receives second indication information from the network device, where the second indication information is used to indicate the time domain resource determination rule.

Wherein, the second indication information may be carried in the DCI, and may also be carried in the higher layer signaling.

Optionally, the terminal device determining the time domain resource determination rule includes: the terminal device determines the time domain resource determination rule based on the number of retransmissions of the data channel and/or the first time domain allocation information.

Among them, the time domain resource determination rules include:

(1) First determine the time domain resources according to the time slot sequence of the time slot set, and then determine the time domain resources according to the symbol group sequence in the time slot;

(2) First determine the time domain resources according to the sequence of the symbol groups in the time slot, and then determine the time domain resources according to the time slot order of the time slot set. For example, assume that the time slot set includes time slot n and time slot n+1.

Among them, the time slot sequence can be from small to large, or from large to small, which is not limited here. The sequence of the symbol group can be from small to large or from large to small, which is not limited here.

For example, for rule (1), if the time slot set includes time slot n and time slot n+1, the time slot sequence is from small to large, the symbol group sequence is from small to large, and the number of retransmissions is 3. The slot includes 2 available symbol groups. First, determine the first symbol group in time slot n, then determine the first symbol group in time slot n+1, and finally determine the second symbol group in time slot n.

For another example, for rule (2), if the time slot set includes time slot n and time slot n+1, the time slot sequence is from small to large, the symbol group sequence is from small to large, and the number of retransmissions is 3. The time slot includes two available symbol groups. First, determine the first symbol group and the second symbol group in time slot n, and then determine the first symbol group in time slot n+1.

Optionally, the terminal device determines the time domain resource determination rule based on the number of retransmissions of the data channel and/or the first time domain allocation information, including: the number of retransmissions of the terminal device based on the data channel and /Or the number of symbol groups, determining a time domain resource determination rule, and the number of symbol groups is the number of symbol groups available in one time slot determined based on the first time domain resource allocation information.

For example, assuming that the first time domain resource allocation information is shown in Table 6, then the number of available symbol groups in a time slot determined based on the first time domain resource allocation information is 2, and the available symbol groups have symbols 2- 6 and symbols 7-11.

For another example, if the number of retransmissions is equal to the number of symbol groups, the determined time-domain resource determination rule is the above-mentioned time-domain resource determination rule (1); if the number of retransmissions is not equal to the number of symbol groups, the determined time-domain resource is determined The rule is the above-mentioned time-domain resource determination rule (2); if the number of retransmissions is equal to the first threshold, the determined time-domain resource determination rule is the above-mentioned time-domain resource determination rule (1); if the number of retransmissions is not equal to the first threshold, confirm The time domain resource determination rule is the above-mentioned time-domain resource determination rule (2); if the number of symbol groups is equal to the second threshold, the determined time-domain resource determination rule is the above-mentioned time-domain resource determination rule (1); if the number of symbol groups is not equal to The second threshold, the determined time-domain resource determination rule is the above-mentioned time-domain resource determination rule (2).

It should be noted that the foregoing time domain resource determination rule is not limited to the foregoing example.

Example 1

Wherein, based on the first time domain allocation information and the number of retransmissions of the data channel, the time domain resources of the data channel to be repeatedly transmitted in the time slot are determined, and the time domain resources include symbols in the time slot.

For example 1, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 2, and the SLIV information is shown in Table 6, then the time domain resources of the PDSCH repeatedly transmitted in the time slot are symbols 2-6 and symbols 7-11, such as Shown in Figure 6.

Table 6

Row index	dmrs-typeA-postions	PDSCH mapping type	k0	S		L
5	2	Type A	0	2	5

For example 2, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 3 and the SLIV information is shown in Table 7, then the time domain resources of the PDSCH repeatedly transmitted in the time slot are symbols 2-5, symbols 6-9, and symbols 10-13, as shown in Figure 6.

Table 7

Row index	dmrs-typeA-postions	PDSCH mapping type	k0	S	L
14	2,3	Type A	0	2	4

For example 3, taking PDSCH as an example, if the number of retransmissions of the PDSCH is 2, and the SLIV information is shown in Table 8, then the time domain resources of the PDSCH repeatedly transmitted in the time slot are symbols 3-6 and symbols 7-10, such as Shown in Figure 6.

Table 8

Row index	dmrs-typeA-postions	PDSCH mapping type	k0	S		L
5	3	Type A	0	3	4

Example 2

Wherein, the determining the time domain resource of the data channel to be repeatedly transmitted between time slots based on the first time domain allocation information and the number of retransmissions of the data channel includes:

Determine multiple first scheduling time slots of the data channel to be repeatedly transmitted between time slots; based on the first time domain allocation information and the number of retransmissions, the time domain resources of the data channel to be repeatedly transmitted between time slots, so The time domain resources include symbols in each of the first scheduling time slots.

Wherein, the multiple first scheduled time slots are indicated by the network device, such as indicated by DCI.

For example 1, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 2, the SLIV information is shown in Table 6, and the scheduled time slots of the PDSCH are n and n+1, then the time domain resources of the PDSCH that are repeatedly transmitted between the time slots It is the symbol 2-6 in the time slot n and the symbol 2-6 in the time slot n+1, as shown in Figure 7; or, based on the SLIV information, the possible multiple symbol groups in a time slot are: 2-6 and 7-11, then the time domain resources of the PDSCH repeatedly transmitted between time slots are the symbol 2-6 in the time slot n and the symbol 7-11 in the time slot n+1.

For example 2, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 2, the SLIV information is shown in Table 7, and the scheduled time slots of the PDSCH are n and n+1, then the time domain resources of the PDSCH that are repeatedly transmitted between the time slots Symbols 2-5 in time slot n and symbols 2-5 in time slot n+1, as shown in Figure 7; or, based on the SLIV information, the possible multiple symbol groups in a time slot are: 2-5, 6-9 and 10-13, then the time domain resources of the PDSCH repeatedly transmitted between time slots are the symbol 2-5 in the time slot n and the symbol 6-9 in the time slot n+1.

For example 3, taking PDSCH as an example, if the number of retransmissions of PDSCH is 2, SLIV information is shown in Table 8, and the scheduling time slots of PDSCH are n and n+1, then the time domain resources of PDSCH that are repeatedly transmitted between time slots It is the symbol 3-6 in time slot n and the symbol 3-6 in time slot n+1, as shown in Figure 7; or, the possible multiple symbol groups in one time slot determined based on SLIV information are 3-6 and 7-10, then the time domain resources of the PDSCH repeatedly transmitted between time slots are the symbol 3-6 in the time slot n and the symbol 7-10 in the time slot n+1.

Example 3

Wherein, the determining the time domain resources of the data channel repeatedly transmitted in and between time slots based on the first time domain allocation information and the number of retransmissions of the data channel includes:

Determine the multiple second scheduling time slots of the data channel to be repeatedly transmitted in the time slot and between the time slots; based on the first time domain allocation information and the number of retransmissions, determine the time in the time slot and between the time slots The time domain resource of the repeatedly transmitted data channel, where the time domain resource includes a symbol in each of the second scheduling time slots.

For example 1, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 4, the SLIV information is shown in Table 6, and the scheduled time slots of the PDSCH are n and n+1, then the transmission is repeated in the time slot and between the time slots. The time domain resources of the PDSCH are symbols 2-6 and 7-11 in time slot n, and symbols 2-6 and 7-11 in time slot n+1, as shown in FIG. 8.

For example 2, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 4, the SLIV information is shown in Table 7, and the scheduled time slots of the PDSCH are n and n+1, then the transmission is repeated in and between time slots. The time domain resources of the PDSCH are symbols 2-5 and 6-9 in time slot n, and symbols 2-5 and 6-9 in time slot n+1, as shown in Figure 8; or, based on The symbol groups in slot n determined by the SLIV information and the number of retransmissions are 2-5, symbols 6-9, and symbols 10-13, and the symbol group in slot n+1 determined based on the SLIV information and the number of retransmissions Is 2-5, then the time domain resources of the PDSCH repeatedly transmitted in and between slots are symbols 2-5, 6-9, and 10-13 in slot n, and in slot n The symbols within +1 are 2-5.

Example 3, taking PDSCH as an example, if the number of retransmissions of PDSCH is 4, the SLIV information is shown in Table 8, and the scheduling time slots of PDSCH are n and n+1, then the transmission is repeated in and between time slots. The time domain resources of the PDSCH are symbols 3-6 and 7-10 in time slot n, and symbols 3-6 and 7-10 in time slot n+1, as shown in FIG. 8.

In an implementation manner of the present application, the time domain of the data channel that is repeatedly transmitted in a time slot and/or between time slots is determined based on the first time domain allocation information and the number of retransmissions of the data channel Resources, including:

Determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information;

Based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions, the time domain resources of the data channel to be repeatedly transmitted in the time slot and/or between the time slots are determined .

Optionally, the determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information includes: determining an association relationship of the first time domain resource allocation information based on an association relationship of the time domain resource allocation information At least one second time domain resource allocation information.

Among them, the association relationship of the time-domain resource allocation information is determined according to a preset rule or predefined. The association relationship of the time domain resource allocation information is that the resource lengths included in the time domain resource allocation information are the same, and the symbols in the time slots corresponding to the time domain resource allocation information do not overlap, then the second time domain is determined based on the association relationship The resource length included in the resource allocation information is the same as the resource length included in the first resource allocation information, and the at least one second time domain resource allocation information does not overlap with symbols in the time slot corresponding to the first time domain resource allocation information.

Example 4

Wherein, based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions, the time domain resource of the data channel that is repeatedly transmitted in the time slot is determined, and the time domain The resource includes the symbols in the time slot.

For example 1, taking PDSCH as an example, if the number of retransmissions of PDSCH is 2, the first time domain resource allocation information is shown in Table 8, and the second time domain resource allocation information determined based on the association relationship is shown in Table 9, then The time domain resources of the PDSCH repeatedly transmitted in the time slot are symbols 3-6 and symbols 9-12, as shown in FIG. 9.

Table 9

Row index	dmrs-typeA-postions	PDSCH mapping type	k0	S		L
6	2	Type B	0	9	4

For example 2, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 2, the first time domain resource allocation information is as shown in the row index of Table 10, and the second time domain resource allocation information determined based on the association relationship is as shown in Table The row index in 10 is shown as 6, then the time domain resources of the PDSCH repeatedly transmitted in the time slot are symbols 4-7 and symbols 10-13, as shown in FIG. 9.

Table 10

Row index	dmrs-typeA-postions	PDSCH mapping type	k0	S		L
7	2	Type B	0	4	4
6	3	Type B	0	10	4

For example 3, taking PDSCH as an example, if the number of retransmissions of PDSCH is 3, the first time domain resource allocation information is as shown in Table 11, the row index is 9, and the second time domain resource allocation information determined based on the association relationship is as shown in Table The row index in 11 is shown as 10 and 11, then the time domain resources of the PDSCH repeatedly transmitted in the time slot are symbols 5-6, symbols 9-10, and symbols 12-13, as shown in FIG. 9.

Table 11

Row index	dmrs-typeA-postions	PDSCH mapping type	k0	S		L
9	2,3	Type B	0	5	2
10	2,3	Type B	0	9	2
11	2,3	Type B	0	12	2

Example 5

Wherein, the determining the time domain resources of the data channel repeatedly transmitted between time slots based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions includes:

Determine multiple third scheduling time slots of the data channel to be repeatedly transmitted between time slots; based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions, it is determined that A time domain resource of a data channel repeatedly transmitted between time slots, where the time domain resource includes symbols in each of the third scheduling time slots.

For example 1, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 2, the first time domain resource allocation information is shown in Table 8, and the second time domain resource allocation information determined based on the association relationship is shown in Table 9. The scheduling time slots are n and n+1, then the time domain resources of the PDSCH repeatedly transmitted between time slots are symbols 3-6 in time slot n, and symbols 9-12 in time slot n+1, such as Shown in Figure 10.

For example 2, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 2, the first time domain resource allocation information is as shown in the row index of Table 10, and the second time domain resource allocation information determined based on the association relationship is as shown in Table The row index in 10 is 6, the PDSCH scheduling time slots are n and n+1, then the time domain resources of the PDSCH that are repeatedly transmitted between time slots are symbols 4-7 in time slot n, and in time Symbols 10-13 in slot n+1 are shown in Fig. 10.

For example 3, taking PDSCH as an example, if the number of retransmissions of PDSCH is 3, the first time domain resource allocation information is as shown in Table 11, the row index is 9, and the second time domain resource allocation information determined based on the association relationship is as shown in Table The row indexes in 11 are shown as 10 and 11. The PDSCH scheduling time slots are n, n+1, and n+2, then the time domain resource of the PDSCH repeatedly transmitted between time slots is the symbol 5 in time slot n -6. Symbols 9-10 in time slot n+1, and symbols 12-13 in time slot n+2, as shown in FIG. 10.

Example 6

Wherein, based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions, the time of the data channel to be repeatedly transmitted in and between time slots is determined Domain resources, including:

Determine multiple fourth scheduling time slots of the data channel to be repeatedly transmitted in the time slot and between time slots; based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the reconfiguration The number of transmissions determines the time domain resource of the data channel repeatedly transmitted in the time slot and between the time slots, and the time domain resource includes the symbols in each of the fourth scheduling time slots.

For example 1, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 4, the first time domain resource allocation information is shown in Table 8, and the second time domain resource allocation information determined based on the association relationship is shown in Table 9. The scheduling time slots are n and n+1, then the time domain resources of the PDSCH repeatedly transmitted in the time slot and between the time slots are the symbols 3-6 and 9-12 in the time slot n, and in the time slot n The symbols 3-6 and 9-12 within +1 are shown in Figure 11.

For example 2, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 4, the first time domain resource allocation information is as shown in the row index of Table 10, and the second time domain resource allocation information determined based on the association relationship is as shown in Table The row index in 10 is 6, and the scheduling time slots of PDSCH are n and n+1, then the time domain resource of the PDSCH repeatedly transmitted in and between time slots is the symbol 4 in time slot n. 7 and symbols 10-13, and symbols 4-7 and symbols 10-13 in time slot n+1, as shown in FIG. 11.

For example 3, taking PDSCH as an example, if the number of retransmissions of the PDSCH is 6, the first time domain resource allocation information is as shown in Table 11, the row index is 9, and the second time domain resource allocation information determined based on the association relationship is as shown in Table The row indexes in 11 are shown as 10 and 11. The PDSCH scheduling time slots are n and n+1, then the time domain resources of the PDSCH repeatedly transmitted in the time slot and between the time slots are the symbols in the time slot n 5-6, symbol 9-10 and symbol 12-13, and symbol 5-6, symbol 9-10, and symbol 12-13 in time slot n+1, as shown in FIG. 11.

In an implementation manner of the present application, the method further includes: the network device sends first indication information; the terminal device receives the first indication information, and the first indication information is used to indicate the repeated transmission mode of the data channel .

Wherein, the repeated transmission mode includes one of repeated transmission in time slots, repeated transmission between time slots, repeated transmission in time slots and between time slots.

Optionally, the first indication information is also used to determine the time domain resource of the data channel. That is, the terminal device determines the time domain resource of the data channel based on the first time domain resource allocation information and the first indication information; or the terminal device determines the time domain resource of the data channel based on the first time domain resource allocation information and the data channel The number of retransmissions and the first indication information jointly determine the time domain resources of the data channel; or the terminal device is based on the first time domain resource allocation information, the at least one second time domain allocation information, and the data channel The number of retransmissions and the first indication information jointly determine the time domain resource of the data channel.

For example, taking the PDSCH as an example, if the first indication information indicates that the repeated transmission mode of the PDSCH is repeated transmission in the time slot, the number of retransmissions of the PDSCH is 2, and the SLIV information is shown in Table 6, then the terminal equipment is based on the first By indicating the information, the number of retransmissions, and the SLIV information, it can be determined that the time domain resources of the PDSCH repeatedly transmitted in the time slot are symbols 2-6 and symbols 7-11, as shown in Example 1 in FIG. 6.

For another example, taking the PDSCH as an example, if the first indication information indicates that the repeated transmission mode of the PDSCH is repeated transmission between time slots, the number of retransmissions of the PDSCH is 2, and the SLIV information is shown in Table 6, the scheduling time slot of the PDSCH Is n and n+1, then the terminal device can determine that the time domain resources of the PDSCH repeatedly transmitted between the time slots are the symbols 2-6 and 2-6 in the time slot n based on the first indication information, the number of retransmissions, and the SLIV information. Symbols 2-6 in time slot n+1 are shown in Example 1 of FIG. 7.

For another example, taking the PDSCH as an example, if the first indication information indicates that the repeated transmission mode of the PDSCH is repeated transmission in and between time slots, the number of retransmissions of the PDSCH is 4, and the SLIV information is shown in Table 6. The scheduling time slots of the PDSCH are n and n+1, then the terminal equipment can determine the time domain resources of the PDSCH repeatedly transmitted in and between time slots based on the first indication information, the number of retransmissions, and the SLIV information. The symbols 2-6 and 7-11 in the time slot n, and the symbols 2-6 and 7-11 in the time slot n+1 are shown in Example 1 of FIG. 8.

For another example, taking the PDSCH as an example, if the first indication information indicates that the repeated transmission mode of the PDSCH is repeated transmission in a time slot, and if the number of retransmissions of the PDSCH is 2, the first time domain resource allocation information is shown in Table 8. , The second time domain resource allocation information determined based on the association relationship is shown in Table 9, then the terminal device can determine the time domain resources of the PDSCH repeatedly transmitted in the time slot based on the first indication information, the number of retransmissions, and the SLIV information These are symbols 3-6 and 9-12, as shown in Example 1 of Figure 9.

For another example, taking the PDSCH as an example, if the first indication information indicates that the repeated transmission mode of the PDSCH is repeated transmission between time slots, the number of retransmissions of the PDSCH is 2, and the first time domain resource allocation information is shown in Table 8. The second time-domain resource allocation information determined based on the association relationship is shown in Table 9. The PDSCH scheduling time slots are n and n+1, then the terminal device can determine whether the The time domain resources of the PDSCH repeatedly transmitted between time slots are symbols 3-6 in time slot n and symbols 9-12 in time slot n+1, as shown in Example 1 of FIG. 10.

For another example, taking the PDSCH as an example, if the first indication information indicates that the repeated transmission mode of the PDSCH is repeated transmission in and between time slots, the number of retransmissions of the PDSCH is 4, and the first time domain resource allocation information is as As shown in Table 8, the second time domain resource allocation information determined based on the association relationship is shown in Table 9. The PDSCH scheduling time slot is n and n+1, then the terminal device is based on the first indication information, the number of retransmissions, and the SLIV information , It can be determined that the time domain resources of the PDSCH repeatedly transmitted in the time slot and between the time slots are the symbols 3-6 and 9-12 in the time slot n, and the symbols 3 in the time slot n+1. 6 and symbols 9-12, as shown in Example 1 of Figure 11.

In an implementation manner of the present application, the quantity of the first time domain resource allocation information is multiple.

Optionally, the quantity of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.

Example 7

For example 1, for the case of repeated transmission in the time slot, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 2, and the SLIV information is shown in Table 12, then the time domain resource of the PDSCH repeatedly transmitted in the time slot is the symbol 3-6 and symbols 9-12, as shown in Figure 12.

Table 12

Row index	dmrs-typeA-postions	PDSCH mapping type	k0	S		L
5	3	Type A	0	3	4
6	2	Type B	0	9	4

For example 2, for the case of repeated transmission between time slots, take the PDSCH as an example. If the number of retransmissions of the PDSCH is 2, the SLIV information is shown in Table 12, and the scheduled time slots of the PDSCH are n and n+1, then the time The time domain resources of the PDSCH repeatedly transmitted between slots are symbols 3-6 in time slot n and symbols 9-12 in time slot n+1, as shown in FIG. 12.

For example 3, for the case of repeated transmission in and between time slots, take PDSCH as an example. If the number of retransmissions of PDSCH is 4, the SLIV information is shown in Table 12, and the scheduling time slots of PDSCH are n and n+ 1. The time domain resources of the PDSCH repeatedly transmitted between time slots are symbols 3-6 and 9-12 in time slot n, and symbols 3-6 and 9-12 in time slot n+1 , As shown in Figure 12.

In an implementation manner of the present application, the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap. That is to say, the time domain resources of the data channels that are repeatedly transmitted twice adjacently in the time slot are separated by 0 symbols or at least one symbol. The number of separated symbols can be predefined or indicated by the network equipment (such as through DCI or higher layer signaling indication).

In an implementation manner of the present application, the frequency domain resources of the data channels of different repeated transmissions are different.

It can be seen that, in the embodiment of the present application, the data channel can be repeatedly transmitted in the time slot and/or between the time slots, which improves the coverage of the data channel. In addition, the repeated transmission of the data channel is completed in the time slot, which can reduce the transmission delay of the data channel; the repeated transmission of the data channel is completed in the time slot and between the time slots, which can meet the greater number of retransmissions.

The foregoing describes in detail the time domain resource determination method of the embodiment of the present application with reference to FIGS. 1 to 13, and the following describes the time domain resource determining apparatus of the embodiment of the present application in detail with reference to FIG. 13.

FIG. 13 shows an apparatus 1300 for determining time domain resources provided by an embodiment of the present application. The apparatus 1300 may be a terminal device or a chip in a terminal device. The apparatus 1300 may be a network device or a device in a network device. chip. The device 1300 includes: a communication unit 1310 and a processing unit 1320.

In a possible implementation manner, the apparatus 1300 is configured to execute each process and step corresponding to the terminal device in the foregoing method for determining time domain resources.

The communication unit 1310 is configured to receive first time domain resource allocation information;

The processing unit 1320 is configured to determine, based on the first time domain resource allocation information, a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots.

Optionally, in terms of determining a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots based on the first time domain allocation information, the processing unit 1320 is specifically configured to:

Based on the first time domain allocation information and the number of retransmissions of the data channel, the time domain resource of the data channel that is repeatedly transmitted in the time slot and/or between the time slots is determined.

Optionally, in terms of determining the time domain resource of the data channel that is repeatedly transmitted in a time slot and/or between time slots based on the first time domain allocation information and the number of retransmissions of the data channel, the processing Unit 1320 is specifically used for:

Determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information;

Based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions, the time domain resources of the data channel to be repeatedly transmitted in the time slot and/or between the time slots are determined .

Optionally, in terms of determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information, the processing unit 1320 is specifically configured to:

Based on the association relationship of the time domain resource allocation information, at least one piece of second time domain resource allocation information associated with the first time domain resource allocation information is determined.

Optionally, the communication unit 1310 is further configured to receive first indication information, where the first indication information is used to indicate a repeated transmission mode of the data channel, and the repeated transmission mode includes repeated transmission in a time slot, One of repeated transmission between time slots, repeated transmission between time slots and between time slots.

Optionally, the first indication information is also used to determine the time domain resource of the data channel.

Optionally, the quantity of the first time domain resource allocation information is multiple.

Optionally, the quantity of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.

Optionally, the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap.

Optionally, the frequency domain resources of the data channels of different repeated transmissions are different.

Optionally, the time domain resource allocation information includes SLIV information.

In another possible implementation manner, the apparatus 1300 is configured to execute each process and step corresponding to the network device in the foregoing method for determining time domain resources.

The communication unit 1310 is configured to send first time domain resource allocation information, where the first time domain resource allocation information is used to determine a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots.

Optionally, the communication unit 1310 is further configured to send the number of retransmissions of the data channel.

Optionally, the communication unit 1310 is further configured to send first indication information, where the first indication information is used to indicate a repeated transmission mode of the data channel, and the repeated transmission mode includes a repeated transmission mode in a time slot , Repetitive transmission between time slots, one of the repeated transmission in time slots and between time slots.

Optionally, the first indication information is also used to determine the time domain resource of the data channel.

Optionally, the quantity of the first time domain resource allocation information is multiple.

Optionally, the quantity of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.

Optionally, the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap.

Optionally, the frequency domain resources of the data channels of different repeated transmissions are different.

Optionally, the time domain resource allocation information includes SLIV information.

It should be understood that the device 1300 here is embodied in the form of a functional unit. The term "unit" here can refer to application specific integrated circuits (ASICs), electronic circuits, processors used to execute one or more software or firmware programs (such as shared processors, proprietary processors, or groups). Processor, etc.) and memory, merged logic circuits, and/or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the apparatus 1300 may be specifically a terminal device or a network device in the foregoing embodiment, and the apparatus 1300 may be used to execute each of the terminal devices or network devices in the foregoing method embodiment. To avoid repetition, the process and/or steps will not be repeated here.

The apparatus 1300 of each of the foregoing solutions has the function of implementing the corresponding steps performed by the terminal device or the network device in the foregoing method; the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the sending unit can be replaced by a transmitter, the receiving unit can be replaced by a receiver, and other units, such as a determining unit, can be replaced by a processor and executed respectively. Transceiving operations and related processing operations in each method embodiment.

In the embodiment of the present application, the device 1300 in FIG. 13 may also be a chip or a chip system, for example, a system on chip (system on chip, SoC). Correspondingly, the receiving unit and the sending unit may be the transceiver circuit of the chip, which is not limited here.

FIG. 14 shows a computer device 1400 provided by an embodiment of the present application. The computer device 1400 includes a processor 1410, a memory 1420, a communication interface 1430, and one or more programs, where the one or more programs are stored in In the above-mentioned memory 1420, and is configured to be executed by the above-mentioned processor 1410.

In a possible implementation manner, the computer device is a terminal device, and the above-mentioned program includes instructions for executing the following steps:

Receiving the first time domain resource allocation information;

Determine, based on the first time domain resource allocation information, the time domain resources of the data channel that is repeatedly transmitted in the time slot and/or between the time slots.

Optionally, in terms of determining the time domain resources of the data channel repeatedly transmitted in the time slot and/or between the time slots based on the first time domain allocation information, the above program includes instructions specifically for executing the following steps:

Based on the first time domain allocation information and the number of retransmissions of the data channel, the time domain resource of the data channel that is repeatedly transmitted in the time slot and/or between the time slots is determined.

Optionally, in terms of determining the time domain resources of the data channel to be repeatedly transmitted in the time slot and/or between the time slots based on the first time domain allocation information and the number of retransmissions of the data channel, the above procedure includes Specific instructions used to perform the following steps:

Determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information;

Based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions, the time domain resources of the data channel to be repeatedly transmitted in the time slot and/or between the time slots are determined .

Optionally, in terms of determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information, the aforementioned program includes instructions specifically for executing the following steps:

Based on the association relationship of the time domain resource allocation information, at least one piece of second time domain resource allocation information associated with the first time domain resource allocation information is determined.

Optionally, the above program includes instructions further used to perform the following steps: receiving first indication information, where the first indication information is used to indicate a repeated transmission mode of the data channel, and the repeated transmission mode is included in a time slot One of repeated transmission, repeated transmission between time slots, repeated transmission within time slots, and between time slots.

Optionally, the first indication information is also used to determine the time domain resource of the data channel.

Optionally, the quantity of the first time domain resource allocation information is multiple.

Optionally, the quantity of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.

Optionally, the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap.

Optionally, the frequency domain resources of the data channels of different repeated transmissions are different.

Optionally, the time domain resource allocation information includes SLIV information.

In another possible implementation manner, the computer device is a network device, and the foregoing program includes instructions for executing the following steps:

Sending the first time domain resource allocation information, where the first time domain resource allocation information is used to determine the time domain resources of the data channel that is repeatedly transmitted in the time slot and/or between the time slots.

Optionally, the above-mentioned program includes an instruction further used to perform the following step: sending the number of retransmissions of the data channel.

Optionally, the above program includes instructions further used to perform the following steps: sending first indication information, the first indication information being used to indicate the repeated transmission mode of the data channel, and the repeated transmission mode is included in the time slot One of repeated transmission mode, repeated transmission mode between time slots, repeated transmission in time slots and between time slots.

Optionally, the first indication information is also used to determine the time domain resource of the data channel.

Optionally, the quantity of the first time domain resource allocation information is multiple.

Optionally, the quantity of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.

Optionally, the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap.

Optionally, the frequency domain resources of the data channels of different repeated transmissions are different.

Optionally, the time domain resource allocation information includes SLIV information.

It should be understood that the memory 1420 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A part of the memory may also include a non-volatile random access memory. For example, the memory can also store device type information.

It should be understood that, in the embodiment of the present application, the processor 1410 of the foregoing device may be a central processing unit (CPU), and the processor 1410 may also be other general-purpose processors, digital signal processors (DSP), and dedicated integrated circuits. Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software units in the processor. The software unit may be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor executes the instructions in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

The embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal in the above method embodiment Some or all of the steps described by the device or network device.

The embodiments of the present application also provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the terminal in the above-mentioned method. Some or all of the steps described by the device or network device. The computer program product may be a software installation package.

It should be understood that the term "and/or" in this text is only an association relationship describing the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist. , There are three cases of B alone. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

A person of ordinary skill in the art may realize that, in combination with the method steps and units described in the embodiments disclosed herein, they can be implemented by electronic hardware, computer software, or a combination of both, in order to clearly illustrate the possibilities of hardware and software. Interchangeability, in the above description, the steps and components of the embodiments have been generally described in accordance with their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. A person of ordinary skill in the art may use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit may refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application is essentially or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium. It includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Anyone familiar with the technical field can easily think of various equivalents within the technical scope disclosed in this application. Modifications or replacements, these modifications or replacements shall be covered within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims (42)

1. A method for determining time domain resources, characterized in that it is applied to a terminal device, and the method includes:

   Receiving first time domain resource allocation information, and determining, based on the first time domain resource allocation information, a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots.
2. The method according to claim 1, wherein the determining a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots based on the first time domain allocation information comprises:

   Based on the first time domain allocation information and the number of retransmissions of the data channel, the time domain resource of the data channel that is repeatedly transmitted in the time slot and/or between the time slots is determined.
3. The method according to claim 2, wherein the data to be repeatedly transmitted in a time slot and/or between time slots is determined based on the first time domain allocation information and the number of retransmissions of the data channel The time domain resources of the channel include:

   Determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information;

   Based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions, the time domain resources of the data channel to be repeatedly transmitted in the time slot and/or between the time slots are determined .
4. The method according to claim 3, wherein the determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information comprises:

   Based on the association relationship of the time domain resource allocation information, at least one piece of second time domain resource allocation information associated with the first time domain resource allocation information is determined.
5. The method according to any one of claims 1 to 4, wherein the method further comprises: receiving first indication information, the first indication information being used to indicate a repeated transmission mode of the data channel, the The repeated transmission mode includes one of repeated transmission in a time slot, repeated transmission between time slots, repeated transmission in a time slot and between time slots.
6. The method according to claim 5, wherein the first indication information is also used to determine the time domain resource of the data channel.
7. The method according to any one of claims 1-6, wherein the number of the first time domain resource allocation information is multiple.
8. The method according to claim 7, wherein the amount of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.
9. The method according to any one of claims 1-8, wherein the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap.
10. The method according to any one of claims 1-9, wherein the frequency domain resources of the data channels of different repeated transmissions are different.
11. The method according to any one of claims 1-10, wherein the time domain resource allocation information includes SLIV information of a starting point length indicator value.
12. A method for determining time domain resources, characterized in that it is applied to a network device, and the method includes:

    Sending the first time domain resource allocation information, where the first time domain resource allocation information is used to determine the time domain resources of the data channel that is repeatedly transmitted in the time slot and/or between the time slots.
13. The method according to claim 12, wherein the method further comprises: sending the number of retransmissions of the data channel.
14. The method according to claim 12 or 13, wherein the method further comprises: sending first indication information, the first indication information being used to indicate a repeated transmission mode of the data channel, and the repeated transmission mode It includes one of repeated transmission in time slots, repeated transmission between time slots, repeated transmission in time slots and between time slots.
15. The method according to claim 14, wherein the first indication information is also used to determine the time domain resource of the data channel.
16. The method according to any one of claims 12-15, wherein the number of the first time domain resource allocation information is multiple.
17. The method according to claim 16, wherein the amount of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.
18. The method according to any one of claims 12-17, wherein the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap.
19. The method according to any one of claims 12-18, wherein the frequency domain resources of the data channels of different repeated transmissions are different.
20. The method according to any one of claims 12-19, wherein the time domain resource allocation information includes SLIV information of a starting point length indicator value.
21. A device for determining time domain resources is characterized in that it is applied to a terminal device, and the device includes:

    The communication unit is configured to receive first time domain resource allocation information;

    The processing unit is configured to determine, based on the first time domain resource allocation information, a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots.
22. The apparatus according to claim 21, wherein the processing unit is configured to determine, based on the first time domain allocation information, a time domain resource of a data channel that is repeatedly transmitted in a time slot and/or between time slots Specifically used for:

    Based on the first time domain allocation information and the number of retransmissions of the data channel, the time domain resource of the data channel that is repeatedly transmitted in the time slot and/or between the time slots is determined.
23. The apparatus according to claim 22, wherein the data channel to be repeatedly transmitted in a time slot and/or between time slots is determined based on the first time domain allocation information and the number of retransmissions of the data channel In terms of time domain resources, the processing unit is specifically configured to:

    Determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information;

    Based on the first time domain resource allocation information, the at least one second time domain resource allocation information, and the number of retransmissions, the time domain resources of the data channel to be repeatedly transmitted in the time slot and/or between the time slots are determined .
24. The apparatus according to claim 23, wherein, in terms of determining at least one piece of second time domain resource allocation information based on the first time domain resource allocation information, the processing unit is specifically configured to:

    Based on the association relationship of the time domain resource allocation information, at least one piece of second time domain resource allocation information associated with the first time domain resource allocation information is determined.
25. The device according to any one of claims 21-24, wherein the communication unit is further configured to receive first indication information, and the first indication information is used to indicate a repeated transmission mode of the data channel, The repeated transmission mode includes one of repeated transmission in time slots, repeated transmission between time slots, repeated transmission in time slots and between time slots.
26. The apparatus according to claim 25, wherein the first indication information is also used to determine the time domain resource of the data channel.
27. The apparatus according to any one of claims 21-26, wherein the number of the first time domain resource allocation information is multiple.
28. The apparatus according to claim 27, wherein the quantity of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.
29. The device according to any one of claims 21-28, wherein the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap.
30. The device according to any one of claims 21-29, wherein the frequency domain resources of the data channels for different repeated transmissions are different.
31. The apparatus according to any one of claims 21-30, wherein the time domain resource allocation information includes SLIV information of a starting point length indicator value.
32. A device for determining time domain resources, which is characterized in that it is applied to network equipment, and the device includes:

    The communication unit is configured to send first time-domain resource allocation information, where the first time-domain resource allocation information is used to determine time-domain resources of a data channel that is repeatedly transmitted in and/or between time slots.
33. The device according to claim 32, wherein the communication unit is further configured to send the number of retransmissions of the data channel.
34. The device according to claim 32 or 33, wherein the communication unit is further configured to send first indication information, and the first indication information is used to indicate a repeated transmission mode of the data channel, and the repeated transmission mode is The transmission mode includes one of repeated transmission in time slots, repeated transmission between time slots, repeated transmission in time slots and between time slots.
35. The apparatus according to claim 34, wherein the first indication information is also used to determine the time domain resource of the data channel.
36. The device according to any one of claims 32-35, wherein the number of the first time domain resource allocation information is multiple.
37. The apparatus according to claim 36, wherein the amount of the first time domain resource allocation information is less than or equal to the number of retransmissions of the data channel.
38. The device according to any one of claims 32-37, wherein the time domain resources of the data channels repeatedly transmitted in the time slot do not overlap.
39. The device according to any one of claims 32-38, wherein the frequency domain resources of the data channels of different repeated transmissions are different.
40. The apparatus according to any one of claims 32-39, wherein the time domain resource allocation information comprises SLIV information of a starting point length indicator value.
41. A computer device characterized by comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs are stored in the memory and configured to be executed by the processor, The program includes instructions for performing the steps in the method according to any one of claims 1-11 or 12-20.
42. A computer-readable storage medium, characterized by storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of claims 1-11 or 12-20.

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