CN117223309A

CN117223309A - Resource indication method and device and terminal equipment

Info

Publication number: CN117223309A
Application number: CN202180097453.9A
Authority: CN
Inventors: 丁伊; 赵振山; 张世昌
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2023-12-12
Also published as: WO2023279390A1

Abstract

The embodiment of the application provides a resource indication method, a resource indication device and terminal equipment, wherein the method comprises the following steps: the first terminal equipment sends first lateral control information; the first side control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.

Description

Resource indication method and device and terminal equipment

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a resource indication method and device, terminal equipment and network equipment.

Background

In order to support ultra-reliable, low latency communication (Ultra reliability and low latency communication, URLLC) related services, micro-slots are introduced in New air interface (NR) systems of the fifth generation (5th generation,5G) mobile communication technology. Wherein the micro slot may include at least one transmission symbol, and the total number of transmission symbols included is smaller than the total number of transmission symbols included in the slot. The introduction of micro time slots can enable uplink and downlink scheduling to be more flexible, and can reduce time delay at the same time, thereby realizing URLLC related services.

Currently, resource allocation of a Side Link (SL) transmission technology is performed in units of time slots. When introducing minislots in SL transmission technology, there is currently no clear method how to perform resource indication.

Disclosure of Invention

The embodiment of the application provides a resource indication method and device and terminal equipment.

The embodiment of the application provides a resource indication method, which comprises the following steps: the first terminal equipment sends first lateral control information; the first side control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.

The embodiment of the application provides a resource indication method, which comprises the following steps: the method comprises the steps that a second terminal device receives first lateral control information, wherein the first lateral control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.

The embodiment of the application also provides a resource indicating device, which is applied to the first terminal equipment, and comprises:

a transmitting unit configured to transmit first side control information; the first side control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.

The embodiment of the application also provides a resource indicating device which is applied to the second terminal equipment, and the device comprises:

a receiving unit configured to receive first side control information, where the first side control information is used to indicate at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.

The terminal device provided by the embodiment of the application can be the first terminal device in the scheme or the second terminal device in the scheme, and the communication device comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the resource indication method.

The chip provided by the embodiment of the application is used for realizing the resource indication method.

Specifically, the chip includes: and a processor for calling and running the computer program from the memory, so that the device mounted with the chip executes the resource indication method.

The computer readable storage medium provided by the embodiment of the application is used for storing a computer program, and the computer program enables a computer to execute the resource indication method.

The computer program product provided by the embodiment of the application comprises computer program instructions, wherein the computer program instructions enable a computer to execute the resource indication method.

The computer program provided by the embodiment of the application, when running on a computer, causes the computer to execute the resource indication method.

Through the technical scheme, the first terminal equipment can send the first lateral control information; indicating at least one time-frequency resource in a first time range through first side control information; and, at least a portion of the plurality of time units included in the first time range is a minislot. That is, the first terminal device may indicate, through the first side control information, a time-frequency resource within a first time range including the micro slot, so that the existing SL mechanism can be applied to the SL communication system configured with the micro slot.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

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

Fig. 2A is a schematic diagram of a side-uplink transmission mode according to an embodiment of the present application;

fig. 2B is a schematic diagram of a second side-uplink transmission mode according to an embodiment of the present application;

fig. 3 is a schematic diagram of a side uplink timeslot structure according to an embodiment of the present application;

FIG. 4 is a schematic diagram of an exemplary resource indication provided by an embodiment of the present application;

fig. 5A is a schematic diagram of a micro timeslot structure according to an embodiment of the present application;

fig. 5B is a schematic diagram of a micro slot structure according to an embodiment of the present application;

fig. 5C is a schematic diagram III of a micro slot structure according to an embodiment of the present application;

FIG. 6 is a schematic flow chart of a resource indication method according to an embodiment of the present application;

FIG. 7A is a schematic diagram of a resource indication scenario I according to an embodiment of the present application;

fig. 7B is a second schematic view of a scenario of resource indication according to an embodiment of the present application;

fig. 7C is a schematic diagram III of a scenario of resource indication according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a resource indicator according to an embodiment of the present application;

fig. 9 is a schematic structural diagram II of a resource indicating device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 11 is a schematic block diagram of a chip of an embodiment of the application;

fig. 12 is a schematic block diagram of a communication system provided in an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be appreciated that the technical solution of the embodiment of the present application may be applied to any communication system supporting SL communication, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), fifth generation (5th generation,5G) mobile telecommunications system, new Radio, NR) system, other next generation communications system, and the like.

Fig. 1 is a schematic diagram of an exemplary network architecture provided by an embodiment of the present application.

As shown in fig. 1, the communication system 100 may include a network device and a plurality of terminal devices, such as: network device 101 may be included, as well as terminal device 102 and terminal device 103.

In the communication system 100 shown in fig. 1, the network device 101 may be an access network device in communication with the terminal device 102 and the terminal device 103. The access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices 102, as well as terminal devices 103, located within the coverage area. In addition, between the terminal device 102 and the terminal device 103, direct communication can be performed by SL communication technology.

The network device may be an evolved base station (Evolutional Node B, eNB or eNodeB) in the LTE system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, or a base station (gNB) in the NR system, or a radio controller in the cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), or the like.

The terminal device may be any terminal device including, but not limited to, a terminal device that employs a wired or wireless connection with a network device or other terminal device.

For example, the terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, an IoT device, a satellite handset, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handset with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

Fig. 1 illustrates one network device and two terminal devices by way of example, and the wireless communication system 100 may alternatively include multiple network devices and may include other numbers of terminal devices within the coverage area of each network device, as embodiments of the application are not limited in this regard.

It should be noted that fig. 1 is only an exemplary system to which the present application is applicable, and of course, the method shown in the embodiment of the present application may be applicable to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. It should also be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B. It should also be understood that "corresponding" mentioned in the embodiments of the present application may mean that there is a direct correspondence or an indirect correspondence between the two, may mean that there is an association between the two, and may also be a relationship between an instruction and an indicated, configured, or the like. It should also be understood that "predefined" or "predefined rules" mentioned in the embodiments of the present application may be implemented by pre-storing corresponding codes, tables or other manners in which related information may be indicated in devices (including, for example, terminal devices and network devices), and the present application is not limited to the specific implementation thereof. Such as predefined may refer to what is defined in the protocol. It should be further understood that, in the embodiment of the present application, the "protocol" may refer to a standard protocol in the field of communications, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited by the present application.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description describes related technologies of the embodiments of the present application, and the following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as alternatives, which all belong to the protection scope of the embodiments of the present application.

Before describing embodiments of the present application in further detail, the terms and terminology involved in the embodiments of the present application will be described, and the terms and terminology involved in the embodiments of the present application will be used in the following explanation.

Side Link (SL): unlike conventional cellular systems in which communication data is received or transmitted via a base station, communication data in the sidelink can be directly communicated from device to device, with higher spectral efficiency and lower transmission delay. Referring to the schematic diagrams of the side-link transmission modes shown in fig. 2A and 2B, the third generation partnership project (3rd Generation Partnership Project,3GPP) defines two side-link transmission modes: mode a and mode B.

Mode a: referring to fig. 2A, transmission resources of a terminal device are allocated by a network device (e.g., a base station). The network device may allocate resources for each terminal device via the downlink. In this way, the terminal device sends data on the side link according to the resources allocated by the network device; the network device may allocate resources of single transmission to the terminal device, or allocate resources of semi-static transmission to the terminal device.

Mode B: referring to fig. 2B, the terminal device may select one resource from the resource pool to transmit communication data. Specifically, the terminal device may select transmission resources from the resource pool in a listening manner, or select transmission resources from the resource pool in a random selection manner.

It should be noted that, in fig. 2A and 2B, only Vehicle-to-Vehicle (V2V) communication is taken as an example, and the SL technology may be applied to a scenario in which communication is directly performed between various terminal devices. Or, the terminal device in the embodiment of the present application refers to any terminal device that uses SL technology for communication.

Time slot structure of side links: referring to an exemplary SL slot structure diagram shown in fig. 3, the slot structure contains 14 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols. Wherein, the first OFDM symbol is an automatic gain control (Automatic Gain Control, AGC) symbol, when the terminal device receives data, the received power of the terminal device can be adjusted by the AGC symbol, so that the adjusted power is suitable for demodulation. When the terminal device transmits data, the data transmitted on the AGC symbol coincides with the content in one symbol after the AGC symbol. In addition, in fig. 3, the physical sidelink control channel (Physical Sidelink Control Channel, PSCCH) is used to carry first sidelink control information (Sidelink Control Information, SCI), and the first SCI mainly includes a domain related to resource indication. The physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) is used to carry data and a second SCI which primarily contains a data demodulation related field. In a certain time slot, there may also be a symbol corresponding to a physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH), where the PSFCH is used to transmit hybrid automatic repeat request acknowledgement (Hybrid Automatic Repeat request ACK, HARQ-ACK) information. The symbols corresponding to the PSFCH may occur once every 1 or 2 or 4 slots, and the number of times the symbols corresponding to the PSFCH occur depends on the resource pool configuration. One symbol before the symbol corresponding to the PSFCH may be an AGC symbol for receiving the PSFCH. Typically, the last symbol in a slot is the GP symbol, GAP. Or the next symbol to the last symbol carrying the PSSCH or PSFCH is the GP symbol. The terminal device performs transmit-receive conversion in the GP symbol, and does not perform transmission. Referring to fig. 3, when PSFCH resources exist in a slot, GP symbols also exist between the symbols of PSSCH and PSFCH. This is because the terminal device may transmit on the PSSCH and receive on the PSFCH, and the GP symbol is also required to transmit/receive.

Note that, referring to fig. 3, when there is no symbol corresponding to the PSFCH in the slot, the GAP symbol between the PSSCH and the PSFCH in fig. 3, the AGC symbol for receiving the PSFCH, and the PSFCH symbol may be used to carry the PSSCH. As can be seen from fig. 3, the PSCCH and its scheduled corresponding pscsch are transmitted in the same slot.

Resource indication of side-links: in SL, the terminal device may send a first SCI in the PSCCH, through which it indicates the time-frequency resources it selects. In SL, resource indication within a Transport Block (TB) is supported as well as resource indication between TBs.

In some embodiments, the first SCI includes a time domain resource allocation (i.e., time resource assignment) indication field and a frequency domain resource allocation (i.e., frequency resource assignment) indication field, which are used to indicate the N time-frequency resources (including the time-frequency resources used for the current transmission) of the currently transmitted TB. Wherein N is less than or equal to N _max In SL, N is limited by the number of information bits used for resource indication in the first SCI _max Equal to 2 or 3.

It should be noted that, the N time-frequency resources indicated by the first SCI may be distributed in W logical timeslots. In SL, W is equal to 32. In general, physical time slots refer to time slots that are contiguous in time, while logical time slots referred to in embodiments of the present application are concepts that are relative to physical time slots, which may be time slots that are not contiguous in physical time. For example, assuming 10 physical time slots, but only 5 of the 10 physical time slots belong to the resource pool used by the terminal device, the logical time slot number is 5. It is understood that being distributed within 32 logical time slots means that the indicated resources are less than 32 logical time slots apart from each other in the time domain.

Exemplary, reference is made to an exemplary resource indication schematic shown in fig. 4. For TB1, the first SCI sent by the terminal device in the primary PSCCH indicates the time-frequency resource locations of primary transmission, retransmission 1 and retransmission 2, i.e. the time-frequency resources of retransmission 1 and retransmission 2 are reserved. The primary transmission, retransmission 1 and retransmission 2 are distributed over 32 logical time slots in the time domain.

In order to enable the first SCI sent by the terminal device to indicate time-frequency resources as much as possible, so that other terminal devices can learn the reserved resources and avoid resource collision through resource exclusion, n=min (N _select ,N _max ). Wherein N is _select The number of time-frequency resources that have been selected for the terminal device in the 32 logical time slots backward including the current transmission resource. For example, in FIG. 4, for TB1, assume N _max When the terminal equipment completes resource selection, if the time domain is retransmitted 1 and the time domain is retransmittedThe time-frequency resource distance primary transmission of the transmission 2 is larger than 32 logical time slots, at the moment, N is _select =1. That is, the terminal device only indicates the time-frequency resource of the current initial transmission in the first SCI of the initial transmission. Conversely, if, after the resource selection, retransmission 1 is temporally separated from the primary transmission by 32 logical time slots, i.e., the transmission resources of primary transmission and retransmission 1 are included in the backward 32 logical time slots starting from the time-domain position of the primary transmission, then N _select Equal to 2 and N is then equal to 2, so that the terminal device indicates the time-frequency resources of the initial transmission and retransmission 1 in the first SCI of the initial transmission.

In some embodiments, the first SCI sent by the terminal device may also include a resource reservation period (i.e., resource reservation period) indication field. The indication field is used to reserve time-frequency resources for one time period and the time-frequency resources for the next time period are to be used for transmission of another TB.

Exemplary, referring to an exemplary resource indication diagram shown in FIG. 4, for TB1, the first SCI sent by the terminal device in the primary PSCCH indicates the time-frequency resource locations of primary, retransmission 1, and retransmission 2, denoted { (t) ₁ ,f ₁ ),(t ₂ ,f ₂ ),(t ₃ ,f ₃ ) }. Wherein t is ₁ 、t ₂ 、t ₃ The time domain positions of primary transmission, retransmission 1 and retransmission 2, respectively. f (f) ₁ 、f ₂ 、f ₃ The frequency domain locations of the corresponding resources, respectively. If the value of the resource reservation period indication field in the first SCI corresponds to 100, it means that the time-frequency resource of the next period is reserved in the first SCI { (t) ₁ +100,f ₁ ),(t ₂ +100,f ₂ ),(t ₃ +100,f ₃ ) And these three resources will be used for the transmission of primary transmission, retransmission 1 and retransmission 2 of TB 2, respectively. In SL, the resource reservation period indication field may be one of 0, 1 to 99, 100, 200, … …, and 1000 ms. In each resource pool, 16 values can be configured at most.

Minislot (Mini-slot): the time domain resources of one slot are further divided in the NR system by introducing micro-slots. Illustratively, at least one transmission symbol (e.g., an OFDM symbol) may be included in the micro-slot, and the micro-slot includes a total number of transmission symbols that is less than a total number of transmission symbols included in the slot.

Referring to the micro-slot structure diagrams shown in fig. 5A to 5C, one slot may be divided into different micro-slots, and the different micro-slots can carry different information. Wherein,

in fig. 5A, the PDCCH at the head of the slot may schedule the PDSCH contained in the minislot 1 located in the same slot, or may schedule the PUSCH contained in the minislot 2 located at the tail of the slot, so that the uplink and downlink data may be rapidly scheduled in one slot;

in fig. 5B, the minislot 1 carrying the PDCCH may be located at any position of the slot, so that when the transmission of the data channel needs to be scheduled in an emergency at the rear part of the slot, the PDCCH may also be sent at any time, and a minislot 2 containing the PDSCH is scheduled by using the remaining time domain resource at the tail part of the slot;

in fig. 5C, after the micro slot 1 transmits the PDSCH, only enough time domain resources are available, a micro slot 2 for transmitting the PUCCH can be scheduled at the end of the slot to carry HARQ-ACK information of the PDSCH, thereby implementing fast HARQ-ACK feedback in one slot.

It can be seen that the micro time slot is used as a scheduling unit smaller than the time slot, so that uplink and downlink resource scheduling is more flexible, and time delay can be reduced.

Currently, the resource indication of SL transmission technology is performed in units of time slots. When introducing minislots in SL transmission technology, there is no clear way how to perform resource indication.

Based on this, the embodiment of the present application provides a resource indication method, specifically, a first terminal device may send first side control information; indicating at least one time-frequency resource in a first time range through first side control information; and, at least a portion of the plurality of time units included in the first time range is a minislot. That is, the first terminal device may indicate, through the first side control information, a time-frequency resource within a first time range including the micro slot, so that the existing SL mechanism can be applied to the SL communication system configured with the micro slot.

It should be noted that, in the embodiment of the present application, the time-frequency resource, the selected time-frequency resource, or the resource refers to PSCCH and its scheduled PSSCH resource. Alternatively, the PSCCH scheduled PSCCH refers to a PSCCH scheduled by a PSCCH and transmitted by the same terminal device in the same time unit as the PSCCH.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the technical solution of the present application is described in detail below through specific embodiments. The above related technologies may be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.

In an embodiment of the present application, a resource indication method is provided, and referring to a flowchart of the resource indication method shown in fig. 6, the method may include the following steps:

fig. 6 is a flowchart of a method 600 for indicating resources according to an embodiment of the present application. As shown in fig. 6, the method 600 includes the following.

Step 610, the first terminal device sends first lateral control information; the first side control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.

Step 620, the second terminal device receives the first lateral control information.

Here, communication between the first terminal device and the second terminal device may be performed through SL technology, and the first terminal device and the second terminal device may be the terminal devices shown in fig. 1. Illustratively, when the first terminal device is terminal device 101, the second terminal device is terminal device 102; when the first terminal device is the terminal device 102, the second terminal device is the terminal device 101.

In some embodiments, the first terminal device may send the first lateral control information, i.e., the first SCI, to the other devices (i.e., the second terminal device). The first terminal device may indicate at least one time-frequency resource to other terminal devices through the first SCI.

The first terminal device may send the first SCI to the second terminal device by broadcasting or send the first SCI to the second terminal device by unicast, which is not limited by the embodiment of the present application.

It should be noted that the number of the second terminal devices may include one or more, which is not limited in this embodiment of the present application.

In some embodiments, the second terminal device may be used as a resource interception device, and perform resource selection according to the interception result. The second terminal device may receive the first SCI transmitted by the first terminal device. In this way, the second terminal device can determine at least one time-frequency resource indicated by the first terminal device according to the decoding result of the first SCI. Furthermore, the second terminal device performs resource exclusion according to the time-frequency resource indicated by the first SCI, so as to avoid resource collision.

Wherein, the at least one time-frequency resource indicated by the first SCI may be a time-frequency resource within a first time range. That is, the time domain position of each of the at least one time-frequency resource is within the first time range.

In some embodiments, the first time range may include a plurality of time units. Here, the time unit is a basic scheduling unit of a time domain, and the time unit may be a time slot, a micro time slot, or a unit formed by a plurality of transmission symbols.

In some embodiments, at least some of the plurality of time units included in the first time range are minislots. It is understood that the first time range includes at least micro time slots. For example, the first time range may include only micro-slots, and the first time range may also include micro-slots and time slots.

It can be appreciated that the at least one time-frequency resource indicated by the first SCI may be a time-frequency resource corresponding to at least one time unit in the first time range. Wherein, at least one time frequency resource corresponds to at least one time unit one by one.

That is, the first terminal device may indicate, through the first SCI, a time-frequency resource in a first time range including a micro slot, so that the first terminal device may perform data transmission through the micro slot, so that an existing SL mechanism may be adapted to an SL communication system configured with the micro slot, while improving flexibility of resource scheduling of the SL, and the SL reduces data transmission delay.

In an embodiment of the present application, the first time range may include a plurality of time units starting from the first time unit.

Here, the first time range may include the first time unit.

It should be noted that, in the embodiment of the present application, the plurality of time units included in the first time range may be physically continuous time units or physically discontinuous time units, which is not limited in the embodiment of the present application.

In one possible implementation, the first time range may include a continuous plurality of time units starting from the first time unit.

Here, the first time range includes a plurality of time units that are physically contiguous time units.

For example, the first time range may include a continuous plurality of minislots starting from the first time unit, or a continuous plurality of slots and minislots starting from the first time unit.

Referring to fig. 7A, all of the time slots in fig. 7A are physically consecutive time slots, wherein each time slot in fig. 7A includes two minislots, and the first time range may be 20 consecutive minislots starting from the first time unit. Referring to fig. 7B, all of the slots in fig. 7B are physically consecutive slots, wherein a portion of the slots in fig. 7B include two minislots, and the first time range may be 15 consecutive slots and minislots from the first time unit.

In another possible implementation, the plurality of time units included in the first time range may be time units in the first resource pool. That is, the first time range may include a consecutive plurality of time units in the first resource pool starting from the first time unit.

Here, the first time range includes a plurality of time units distributed in the first resource pool, and the plurality of time units may be physically discontinuous.

In some embodiments, the first resource pool may be any one of one or more resource pools configured or preconfigured to the first terminal device for the network device.

In some embodiments, the first resource pool may be a resource pool used by the first terminal device in one or more resource pools configured or preconfigured by the network device to the first terminal device.

In some embodiments, the resource pool used by the first terminal device may be a transmission resource pool and/or a reception resource pool used by the first terminal device.

In some embodiments, the resource pool used by the first terminal device is the resource pool used by the first terminal device to transmit the first SCI.

The first time range may include, for example, a plurality of minislots starting from the first time unit in the first resource pool, or the first time range may include a plurality of minislots and slots starting from the first time unit in the first resource pool.

In some embodiments, the first time range includes a minislot, or a time slot and a minislot, which needs to be determined according to the configuration of the first resource pool.

Referring to the schematic view of the scenario of the resource indication shown in fig. 7A, all the slots in fig. 7A are slots in the first resource pool used by the first terminal device, and each slot in the first resource pool is configured as 2 minislots. Wherein the first time range may be 20 consecutive minislots from the first time unit in the first resource pool.

Referring to the schematic view of the resource indication scenario shown in fig. 7B, all the time slots in fig. 7B are time slots in the first resource pool used by the first terminal device, and a part of the time slots in the first resource pool are configured as micro time slots, where one time slot in every two time slots in the first resource pool is configured as two micro time slots. In fig. 7B, the first time range may be 15 consecutive minislots and slots from the first time unit in the first resource pool.

That is, both time slots and micro time slots are configured in the first resource pool, and the first time range may include time slots and micro time slots.

In some embodiments, where the first resource pool includes micro-slots and time slots, the first time range may include only micro-slots. Optionally, the first terminal device may determine the time unit type included in the first time range according to an actual configuration of the first resource pool.

Referring to the schematic view of the resource indication scenario shown in fig. 7C, all the time slots in fig. 7C are time slots in the first resource pool used by the first terminal device, and a part of the time slots in the first resource pool are configured as micro time slots, where one time slot in every two time slots in the first resource pool is configured as two micro time slots. In fig. 7C, the first time range may be 10 consecutive minislots from the first time unit in the first resource pool.

That is, in the case where both the time slot and the micro time slot are configured in the first resource pool, the first time range may include only the micro time slot.

Therefore, the first time range provided by the embodiment of the application can be of various types, and the first terminal equipment can indicate the time-frequency resource in the first resource pool configured with the micro time slot through the first SCI, so that the existing SL mechanism can be suitable for the resource pool configured with the micro time slot or the SL communication system configured with the micro time slot, and the application scene of SL is expanded.

In some embodiments, the first time unit is a time unit at which the first terminal device transmits the first SCI. The first time unit may, for example, transmit a time slot of the first SCI, or a minislot, for the first terminal device.

Illustratively, referring to the schematic view of the scenario of the resource indication shown in fig. 7A, each time slot in fig. 7A is configured as 2 minislots. And the first terminal equipment sends the first SCI in the micro time slot where the time-frequency resource 1 is located, and the first time unit is the micro time slot where the time-frequency resource 1 is located. Referring to the schematic diagrams of the scenario of the resource indication shown in fig. 7B and 7C, one slot of every two slots in fig. 7B and 7C is configured as 2 minislots. And the first terminal equipment sends the first SCI in the micro time slot where the time-frequency resource 1 is located, and the first time unit is the micro time slot where the time-frequency resource 1 is located.

It is understood that the first terminal device transmits the first SCI on the first time unit. In this way, the second terminal that receives the first SCI may determine the first time range according to the time unit that receives the first SCI, so as to determine the time-frequency resource indicated by the first terminal device from the first time range.

In an embodiment of the present application, the first time range may include a plurality of time units. Here, the number of the plurality of time units is denoted by M, which is an integer greater than 1.

Wherein the number M of time units comprised by the first time range may be determined in different ways. In some embodiments, M may be determined by being based on any one of the following:

Determining based on the pre-configuration information;

determining based on the network configuration information;

is determined based on a preset value specified by a standard.

In some embodiments, the first terminal device may determine the value of M according to the preconfiguration information. For example, the first terminal device may read pre-configuration information stored in the local chip, and determine the value of M based on the pre-configuration information. Wherein, the preconfiguration information may indicate that the value of M is 31 or 32.

In some embodiments, the first terminal device may further receive network configuration information sent by the network device, and determine the value of M according to the network configuration information. The network configuration information may configure the value of M to be 31 or 32.

Here, the network configuration information may be carried in dedicated signaling, or in resource pool configuration information, which the present application does not limit.

In some embodiments, the value of M may also be a preset value specified in the standard, and the first terminal device may determine the value of M according to the preset value specified by the standard protocol. Here, the value of M may be 31 or 32.

Note that M can be configured or preconfigured in units of resource pools. By way of example, the value of M corresponding to the first resource pool is configured by configuring or pre-configuring the first resource pool. When the first terminal device determines to use the first resource pool, the value of M corresponding to the first resource pool may be determined, so as to obtain a first time range.

For example, the first terminal device may receive resource pool configuration information sent by the network device, where the resource pool configuration information is used to configure the first resource pool. The resource pool configuration information may include third indication information, where the third indication information is used to indicate M.

Based on this, the first terminal device may determine the number of time units included in the first time range in different ways. The first terminal device may determine the first time range based on the number of time units comprised by the first time range and the time domain position of the first time unit. Correspondingly, the second terminal device can also determine the first time range based on the first time range.

For example, referring to the schematic view of the scenario of the resource indication shown in fig. 7A, the first time unit is a minislot where the time-frequency resource 1 is located, and in the case where M is 20, the first time range is 20 minislots that are continuous from the minislot where the time-frequency resource 1 is located. Referring to the schematic view of the resource indication scenario shown in fig. 7B, in the case where the first time unit is a minislot where the time-frequency resource 1 is located, and M is 15, the first time range is 15 consecutive slots and minislots starting from the minislot where the time-frequency resource 1 is located. Referring to the schematic view of the scenario of the resource indication shown in fig. 7C, in the case where the first time unit is the minislot where the time-frequency resource 1 is located, and M is 10, the first time range is 10 consecutive minislots starting from the minislot where the time-frequency resource 1 is located.

Based on the foregoing embodiments, the first SCI may indicate at least one time-frequency resource, i.e., the first SCI may indicate one or more time-frequency resources. Here, N is an integer greater than or equal to 1, which represents the number of at least one time-frequency resource.

In an embodiment of the present application, the number N of at least one time-frequency resource indicated by the first SCI may be determined by:

the number N of the at least one time-frequency resource is the minimum value of the first parameter N1 and the second parameter N2; n1 and N2 are integers greater than or equal to 1;

the first parameter N1 is the total number of time-frequency resources selected by the first terminal equipment in a first time range; the second parameter N2 is the maximum value of the time-frequency resource that the first SCI can indicate.

That is, the number of at least one time-frequency resource indicated by the first SCI, n=min (N1, N2), min (), i.e., both, takes a minimum value.

Wherein N1 is the total number of time-frequency resources selected by the first terminal device UE 1 located in the first time range.

In some embodiments, the first terminal device selected time-frequency resource is a selected resource for the same TB, the same Mac PDU, the same HARQ process, or the same data. That is, the time-frequency resources that the first terminal device has selected within the first time range are for transmission of the same TB, the same medium access control (Media Access Control, MAC) protocol data unit (Protocol Data Unit, PDU), the same HARQ process, or the same data.

The selected time-frequency resource of the first terminal device includes PSCCH used for transmitting the first SCI and its scheduled pscsch resource.

Wherein N2 is the maximum value of time-frequency resources that can be indicated by the first SCI sent by the first terminal device.

In some embodiments, N2 is the time-frequency resource maximum value of the same TB, the same MAC PDU, the same HARQ process, or the same data that the first SCI can indicate is sent by the first terminal device.

It should be understood that the N time-frequency resources are N time-frequency resources located in the first time range before the selected time-domain position of the first terminal device. For example, in the first time range, there may be a plurality of (greater than N) time-frequency resources selected by the first terminal device, but the first SCI can only indicate N time-frequency resources due to the limitation of the bit number of the first SCI. Thus, the N time-frequency resources are the first N time-frequency resources that the first terminal device has selected.

As illustrated in fig. 7A to 7C, the first terminal device has selected 4 time-frequency resources for the same TB in the first time range, including time-frequency resource 1 used by the first terminal device to transmit the first SCI, that is, n1=4. In the case where the maximum value of the time-frequency resources that the first SCI can indicate is 3, that is, n2=3, the first terminal device may determine that the number of time-frequency resources N indicated in the first SCI is 3. Thus, the first terminal device sends the first SCI indication of the first 3 selected time-frequency resources in the first time range in time-frequency resource 1, i.e. time-frequency resource 1 and time-frequency resource 2 and time-frequency resource 3.

In some embodiments, the first SCI includes first indication information indicating a time domain location of the at least one time-frequency resource.

It is understood that the first terminal device may indicate the time domain location of the at least one time-frequency resource within the first time range by the first indication information in the first SCI. Illustratively, the first indication information may be information carried in a time domain resource allocation indication (i.e., time resource assignment) domain in the first SCI.

In some embodiments, the first terminal device may indicate a time domain position of the at least one time-frequency resource using an offset of the at least one time-frequency resource relative to the first time unit.

That is, the first indication information may include an offset of the at least one time-frequency resource with respect to the first time unit.

In some embodiments, the offset corresponds to at least one of:

the number of minislots of at least one time-frequency resource relative to the first time unit;

the number of minislots and time slots of at least one time-frequency resource relative to the first time unit;

the method comprises the steps of in a first resource pool, at least one time-frequency resource is relative to the number of micro time slots of a first time unit;

The first resource pool includes at least one time-frequency resource relative to a number of minislots and slots of the first time unit.

It is understood that the offset may be the number of minislots of at least one time-frequency resource separated from the first time unit, or the number of minislots and slots of at least one time-frequency resource separated from the first time unit, or the number of minislots of at least one time-frequency resource separated from the first time unit and belonging to the first resource pool, or the number of minislots and slots of at least one time-frequency resource separated from the first time unit and belonging to the first resource pool.

Thus, the time domain position of at least one time-frequency resource in the embodiments of the present application may be determined based on the time domain position and/or the offset of the first time unit.

That is, the first indication information may include an offset of a time domain position of each of the at least one time-frequency resource with respect to the first time unit. Therefore, after receiving the first indication information, the second terminal device can determine the time-frequency resource indicated by the first terminal device according to the time-domain position of the first time unit and the offset between each time-frequency resource and the first time unit.

It should be noted that, when the first SCI indicates N time-frequency resources, the first indication information may only carry N-1 offsets. For example, the first terminal device sends the first SCI in the first time unit, and it can be understood that the default first terminal device indicates the time domain position of the first time-frequency resource in the time domain, in this case, the first indication information may only need to carry N-1 time domain offsets, and the first indication information may indicate the time domain positions of the remaining N-1 time-frequency resources through the N-1 time domain offsets at the same time, so that the time domain positions of the N time-frequency resources are indicated through the N-1 time domain offsets. Correspondingly, the second terminal equipment can determine the time domain position of the first time-frequency resource on the time domain indicated by the first SCI according to the time unit of the received first SCI, and can determine the time domain positions of the remaining N-1 time-frequency resources through N-1 time domain offsets carried in the first indication information, so that the time domain positions of the N time-frequency resources are obtained through the N-1 offsets.

For example, referring to the schematic view of the scenario of the resource indication shown in fig. 7A, all the slots in fig. 7A are slots in the first resource pool used by the first terminal device, and each slot in the first resource pool is configured as 2 minislots. The first SCI may indicate time-frequency resource 1, time-frequency resource 2, and time-frequency resource 3 within a first time range. The first SCI is sent on time-frequency resource 1, so the first indication information may indicate the time-domain positions of the three time-frequency resources by only two offsets. Specifically, the first terminal device may indicate the time domain positions of the time-frequency resource 1, the time-frequency resource 2, and the time-frequency resource 3 according to the offset 1 and the offset 2. Offset 1 is the time domain offset of time-frequency resource 2 relative to the first time unit, i.e., 2 minislots. Offset 2 is the time domain offset of time-frequency resource 3 with respect to the first time unit, i.e. 6 minislots. Here, the first terminal device may jointly encode the offset 1 and the offset 2, that is, the 2 minislots and the 6 minislots, into a value, and indicate the value through the first indication information in the first SCI.

Referring to the schematic view of the resource indication scenario shown in fig. 7B, all the time slots in fig. 7B are time slots in the first resource pool used by the first terminal device, and a part of the time slots in the first resource pool are configured as micro time slots, where one time slot in every two time slots in the first resource pool is configured as two micro time slots. The first SCI may indicate time-frequency resource 1, time-frequency resource 2, and time-frequency resource 3 within a first time range. The first SCI is sent on time-frequency resource 1, and the first indication information may indicate the time-domain positions of time-frequency resource 1, time-frequency resource 2, and time-frequency resource 3 only by offset 1 and offset 2. Wherein, the offset 1 is the number of minislots and slots of the time-frequency resource 2 indicated by the first SCI and separated from the first time unit, and the offset 1 takes a value of 2 (corresponding to 1 minislot and 1 slot). Offset 2 is the number of minislots and slots of time-frequency resource 3 from the first time unit indicated by the first SCI, and the value of offset 3 is 6 (corresponding to 4 minislots plus 2 slots). Here, the first terminal device may jointly encode the offset 1 and the offset 2 into a value, and indicate the value through the first indication information in the first SCI.

Referring to the schematic view of the resource indication scenario shown in fig. 7C, all the time slots in fig. 7C are time slots in the first resource pool used by the first terminal device, and a part of the time slots in the first resource pool are configured as micro time slots, where one time slot in every two time slots in the first resource pool is configured as two micro time slots. The first SCI may indicate time-frequency resource 1, time-frequency resource 2, and time-frequency resource 3 within a first time range. The first SCI is sent on time-frequency resource 1, and the first indication information may indicate the time-domain positions of time-frequency resource 1, time-frequency resource 2, and time-frequency resource 3 only by offset 1 and offset 2. Wherein, the offset 1 is the number of minislots of the time-frequency resource 2 indicated by the first SCI and the first time unit, and the offset 1 takes a value of 2 (corresponding to 2 minislots). Offset 2 is the number of minislots of time-frequency resource 3 from the first time unit indicated by the first SCI, and the value of offset 3 is 4 (corresponding to 4 minislots). Here, the first terminal device may jointly encode the offset 1 and the offset 2 into a value, and indicate the value through the first indication information in the first SCI.

In the implementation of the present application, the second terminal device may determine, according to the first indication information in the first SCI, a micro time slot of the first terminal device in the first time range, or a resource reserved in a time slot, so as to exclude a corresponding time-frequency resource when the resource is selected, and avoid a problem of resource collision, so that the existing SL mechanism is applicable to a resource pool configured with the micro time slot or an SL communication system configured with the micro time slot.

Based on the foregoing embodiment, in an embodiment of the present application, the first SCI may further include second indication information, where the second indication information is used to indicate a resource reservation period; the resource reservation period characterizes a time interval length between at least one reserved time-frequency resource and at least one time-frequency resource; at least one reserved time-frequency resource corresponds to at least one time-frequency resource one by one.

The second indication information may be, for example, information carried in a resource reservation period indication (i.e., resource reservation period) field in the first SCI. The first terminal device may reserve time-frequency resources for the next time period (i.e., reserved time-frequency resources) using the second indication information, where the reserved time-frequency resources are to be used for transmission of another TB.

In some embodiments, the reserved time period indicated by the second indication information may be a physical length of time, e.g., 100 milliseconds, 50 milliseconds, etc. The physical time length refers to the time interval length between the time-frequency resource in the current period and the reserved time-frequency resource.

The first SCI transmitted by the terminal device in the primary PSCCH illustratively indicates the time-frequency resources of primary, retransmission 1 and retransmission 2, denoted { (t) ₁ ,f ₁ ),(t ₂ ,f ₂ ),(t ₃ ,f ₃ ) }. Wherein t is ₁ 、t ₂ 、t ₃ The time domain positions of primary transmission, retransmission 1 and retransmission 2, respectively. f (f) ₁ 、f ₂ 、f ₃ The frequency domain locations of the corresponding resources, respectively. If the value corresponding to the second indication information in the first SCI is 100, the first SCI also reserves the time-frequency resource { (t) after 100 ms at the same time ₁ +100, f ₁ ),(t ₂ +100,f ₂ ),(t ₃ +100,f ₃ ) }. The time-frequency resource (t ₁ ,f ₁ ) And reserved time-frequency resource (t ₁ +100,f ₁ ) Correspondingly, the time-frequency resource (t ₂ ,f ₂ ) And reserved time-frequency resource (t ₂ +100,f ₂ ) Corresponding to the time-frequency resource (t ₃ ,f ₃ ) And reserved time-frequency resource (t ₃ +100,f ₃ ) Corresponding to the above.

Based on this, the resource indication method provided by the embodiment of the present application may further execute the following steps:

the second terminal equipment determines the number of logic time units corresponding to the resource reservation period; a logic time unit for representing a time unit in a resource pool used by the second terminal equipment;

the second terminal device performs resource exclusion based on the number of logical time units.

In the embodiment of the application, the first terminal equipment reserves the selected time-frequency resource through the first SCI. And the second terminal equipment decodes the first SCI sent by other terminal equipment (namely the first terminal equipment) when listening, and knows the resources reserved by other terminal equipment, thereby eliminating the corresponding resources when selecting the resources and avoiding the occurrence of the problem of resource collision.

Here, the first terminal device indicates the time-frequency resource reserved in the next time period in the second indication information. It should be noted that the second indication information indicates a physical time (for example, 100 ms), however, in practical application, the second terminal device needs to perform resource exclusion according to the time unit in the resource pool used by the second terminal device. Therefore, the second terminal device needs to convert the physical time indicated by the second indication information into the corresponding number of logical time units, and then performs resource exclusion according to the number of logical time units.

Here, the logical time unit refers to a time unit in the resource pool used by the second terminal device. In some embodiments, the resource pool used by the second terminal device comprises at least one of:

a transmission resource pool of the second terminal equipment;

and the second terminal equipment performs resource interception on the resource pool.

In some embodiments, the second terminal device determines the number of logical time units corresponding to the resource reservation period, which may be implemented by:

and the second terminal equipment determines the number of the logic time units based on the number of micro time slots in the resource pool used by the second terminal equipment within the preset time length.

Here, the preset time length may be one system frame (system frame number, SFN) period, or 10240 ms, or may be other time lengths, which is not limited by the embodiment of the present application.

In a possible example, the specific conversion process of converting the resource reservation period into the logical time unit number according to the number of minislots included in the preset time length by the second terminal device may refer to formula (1).

Wherein Prsvp is a resource reservation period, and P' rsvp is the calculated corresponding logical time unit number. N3 is 10240 ms belonging to the resource pool minislot order used by the second terminal device.

In another possible example, the specific conversion process of converting the resource reservation period into the logical time unit number according to the number of micro slots included in the preset time length by the second terminal device may refer to formula (2).

Wherein Prsvp is a resource reservation period, and P' rsvp is the calculated corresponding logical time unit number. N4 is the number of time slots belonging to the resource pool used by the second terminal device within 10240 milliseconds. Wherein each time slot in the resource pool used by the second terminal device is configured into F micro time slots, or each time slot in the resource pool used by the second terminal device contains F micro time slots.

In some embodiments, the second terminal device determines the number of logical time units corresponding to the resource reservation period, which may be further implemented by:

the second terminal device determines the number of logical time units based on the sum of the number of micro time slots and time slots in the resource pool used by the second terminal device within the preset time length.

It may be appreciated that in case that the resource pool used by the second terminal device includes micro slots and time slots, the second terminal device may convert the resource reservation period into the logical time unit number according to the sum of the numbers of the micro slots and time slots included in the preset time length.

For example, the specific conversion process of converting the resource reservation period into the logical time unit number according to the sum of the minislots and the number of slots included in the preset time length by the second terminal device may refer to formula (3).

Wherein Prsvp is a resource reservation period, and P' rsvp is the calculated corresponding logical time unit number. N5 is the sum of the number of minislots and slots belonging to the resource pool used by the second terminal device within 10240 milliseconds.

After determining the number of logical time units, the second terminal device may determine reserved time-frequency resources of the first terminal device using the number of logical time units. Therefore, when the second terminal equipment performs resource selection, the reserved time-frequency resources of the first terminal equipment can be eliminated, so that the problem of resource collision is avoided.

In summary, the resource indication method and the method for converting the resource reservation period provided by the embodiments of the present application can make the existing SL mechanism suitable for the SL communication system configured with the micro-slot or the resource pool configured with the micro-slot.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be regarded as the disclosure of the present application. For example, on the premise of no conflict, the embodiments described in the present application and/or technical features in the embodiments may be combined with any other embodiments in the prior art, and the technical solutions obtained after combination should also fall into the protection scope of the present application.

It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Furthermore, in the embodiment of the present application, the terms "downstream", "upstream" and "sidestream" are used to indicate a transmission direction of signals or data, where "downstream" is used to indicate that the transmission direction of signals or data is a first direction from a station to a user equipment of a cell, and "upstream" is used to indicate that the transmission direction of signals or data is a second direction from the user equipment of the cell to the station, and "sidestream" is used to indicate that the transmission direction of signals or data is a third direction from the user equipment 1 to the user equipment 2. For example, "downstream signal" means that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which means that three relationships may exist. Specifically, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Fig. 8 is a schematic structural diagram of a resource indicating device according to an embodiment of the present application, which is applied to a first terminal device, as shown in fig. 8, where the resource indicating device includes:

a transmitting unit 81 configured to transmit the first side control information; the first side control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.

In some embodiments, the first time range includes a plurality of time units starting from the first time unit.

In some embodiments, the first side control information includes first indication information, where the first indication information is used to indicate a time domain location of the at least one time-frequency resource.

In some embodiments, the first indication information comprises an offset of at least one time-frequency resource relative to the first time unit, the time-domain position of the at least one time-frequency resource being determined based on the time-domain position and/or the offset of the first time unit.

In some embodiments, the offset corresponds to at least one of:

In some embodiments, the first time unit is a time unit in which the first terminal device sends the first lateral control information.

In some embodiments, the number of time units comprised by the first time range is determined based on any one of:

determining based on the pre-configuration information;

determining based on the network configuration information;

is determined based on a preset value specified by a standard.

In some embodiments, the plurality of time units included in the first time range are time units in the first resource pool.

In some embodiments, the first resource pool is a resource pool used by the first terminal device.

In some embodiments, the first resource pool comprises a transmission resource pool and/or a reception resource pool used by the first terminal device.

In some embodiments, the number of at least one time-frequency resource is the minimum of the first parameter and the second parameter;

the first parameter is the total number of time-frequency resources selected by the first terminal equipment in a first time range; the second parameter is the maximum value of the time-frequency resource indicated by the first side control information.

In some embodiments, the first side control information further includes second indication information, where the second indication information is used to indicate a resource reservation period; the resource reservation period characterizes a time interval length between at least one reserved time-frequency resource and at least one time-frequency resource; at least one reserved time-frequency resource corresponds to the at least one time-frequency resource one by one.

Fig. 9 is a schematic structural diagram of a resource indicating device according to an embodiment of the present application, which is applied to a second terminal device, and as shown in fig. 9, the resource indicating device includes:

a receiving unit 91 configured to receive first side-line control information, where the first side-line control information is used to indicate at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.

In some embodiments, the first indication information comprises an offset of at least one time-frequency resource relative to the first time unit, the time-domain position of the at least one time-frequency resource being determined based on the time-domain position of the first time unit and/or the offset.

In some embodiments, the offset corresponds to at least one of:

the first resource pool includes at least one time-frequency resource relative to a micro-time slot and a number of time slots of a first time unit.

determining based on the pre-configuration information;

determining based on the network configuration information;

is determined based on a preset value specified by a standard.

In some embodiments, the first side control information further includes second indication information, where the second indication information is used to indicate a resource reservation period; the resource reservation period characterizes a length of a time interval between at least one reserved time-frequency resource and at least one time-frequency resource.

In some embodiments, the resource indicating device further comprises a processing unit.

The processing unit is configured to determine the number of logical time units corresponding to the resource reservation period; a logic time unit for representing a time unit in a resource pool used by the second terminal equipment; resource exclusion is performed based on the number of logical time units.

In some embodiments, the processing unit is further configured to determine the number of logical time units based on the number of micro time slots belonging to the resource pool used by the second terminal device within a preset length of time.

In some embodiments, the processing unit is further configured to determine the number of logical time units based on a sum of the number of micro-slots and time slots belonging to the resource pool used by the second terminal device within a preset length of time.

In some embodiments, the resource pool used by the second terminal device comprises at least one of:

a transmission resource pool of the second terminal equipment;

It should be understood by those skilled in the art that the above description of the resource indicating device according to the embodiment of the present application may be understood with reference to the description of the resource indicating method according to the embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication device 1000 according to an embodiment of the present application. The communication device may be a terminal device. The communication device 1000 shown in fig. 10 comprises a processor 1010, from which the processor 1010 may call and run a computer program to implement the method in an embodiment of the application.

Optionally, as shown in fig. 10, the communication device 1000 may also include a memory 1020. Wherein the processor 1010 may call and run a computer program from the memory 1020 to implement the methods in embodiments of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

Optionally, as shown in fig. 10, the communication device 1000 may further include a transceiver 1030, and the processor 1010 may control the transceiver 1030 to communicate with other devices, and in particular, may send information or data to other devices or receive information or data sent by other devices.

The transceiver 1030 may include, among other things, a transmitter and a receiver. The transceiver 1030 may further include an antenna, the number of which may be one or more.

Optionally, the communication device 1800 may be specifically a first terminal device/a second terminal device in the embodiment of the present application, and the communication device 1000 may implement corresponding processes implemented by the first terminal device/the second terminal device in the methods in the embodiments of the present application, which are not described herein for brevity.

Fig. 11 is a schematic structural view of a chip of an embodiment of the present application. The chip 1100 shown in fig. 11 includes a processor 1110, and the processor 1110 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 11, the chip 1100 may also include a memory 1120. Wherein the processor 1110 may call and run a computer program from the memory 1120 to implement the methods in embodiments of the present application.

Wherein the memory 1120 may be a separate device from the processor 1110 or may be integrated into the processor 1110.

Optionally, the chip 1100 may also include an input interface 1130. The processor 1110 may control the input interface 1130 to communicate with other devices or chips, and in particular, may obtain information or data sent by the other devices or chips.

Optionally, the chip 1100 may also include an output interface 1140. Wherein the processor 1110 may control the output interface 1140 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to the first terminal device/the second terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the first terminal device/the second terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 12 is a schematic block diagram of a communication system 1200 provided by an embodiment of the present application. As shown in fig. 12, the communication system 1200 includes a first terminal device 1210 and a second terminal device 1220.

The first terminal device 2010 may be used to implement the corresponding function implemented by the first terminal device in the above method, and the second terminal device 2020 may be used to implement the corresponding function implemented by the second terminal device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to the first terminal device/the second terminal device in the embodiment of the present application, and the computer program causes a computer to execute corresponding processes implemented by the first terminal device/the second terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the first terminal device/the second terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute corresponding processes implemented by the first terminal device/the second terminal device in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the first terminal device/the second terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the first terminal device/the second terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

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 solution. 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 application.

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

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in 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 this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of resource indication, the method comprising:

the first terminal equipment sends first lateral control information; the first side control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.
The method of claim 1, wherein the first time range comprises a plurality of time units starting from a first time unit.
The method of claim 2, wherein the first side-row control information comprises first indication information indicating a time domain location of the at least one time-frequency resource.
A method according to claim 3, wherein the first indication information comprises an offset of the at least one time-frequency resource relative to the first time unit, the time domain position of the at least one time-frequency resource being determined based on the time domain position of the first time unit and/or the offset.
The method of claim 4, wherein the offset corresponds to at least one of:

the number of minislots of the at least one time-frequency resource relative to the first time unit;

The at least one time-frequency resource is relative to the number of minislots and slots of the first time unit;

a number of minislots of the at least one time-frequency resource relative to the first time unit in a first resource pool;

the at least one time-frequency resource is relative to the number of minislots and slots of the first time unit in the first pool of resources.
The method according to any of claims 2-5, wherein the first time unit is a time unit in which the first terminal device sends the first lateral control information.
The method of any of claims 1-6, wherein the first time range includes a number of time units determined based on any of:

determining based on the pre-configuration information;

determining based on the network configuration information;

is determined based on a preset value specified by a standard.
The method of any of claims 1-7, wherein the first time range comprises a plurality of time units that are time units in a first resource pool.
The method of claim 8, wherein the first resource pool is a resource pool used by the first terminal device.
The method of claim 9, wherein the first resource pool comprises a transmit resource pool and/or a receive resource pool used by the first terminal device.
The method according to any of claims 1-10, wherein the number of the at least one time-frequency resource is a minimum of the first parameter and the second parameter;

the first parameter is the total number of time-frequency resources selected by the first terminal equipment in the first time range; and the second parameter is the maximum value of the time-frequency resource indicated by the first side control information.
The method according to any of claims 1-11, wherein the first SCI further comprises second indication information, wherein the second indication information is used to indicate a resource reservation period; the resource reservation period characterizes a time interval length between at least one reserved time-frequency resource and the at least one time-frequency resource; the at least one reserved time-frequency resource corresponds to the at least one time-frequency resource one by one.
A method of resource indication, the method comprising:

the method comprises the steps that a second terminal device receives first lateral control information, wherein the first lateral control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.
The method of claim 13, wherein the first time range comprises a plurality of time units starting from a first time unit.
The method of claim 14, wherein the first side-row control information comprises first indication information indicating a time domain location of the at least one time-frequency resource.
The method of claim 15, wherein the first indication information comprises an offset of the at least one time-frequency resource relative to the first time unit, a time domain position of the at least one time-frequency resource being determined based on the time domain position of the first time unit and/or the offset.
The method of claim 16, wherein the offset corresponds to at least one of:

the number of minislots of the at least one time-frequency resource relative to the first time unit;

the at least one time-frequency resource is relative to the number of minislots and slots of the first time unit;

a number of minislots of the at least one time-frequency resource relative to the first time unit in a first resource pool;

the at least one time-frequency resource is relative to the number of minislots and slots of the first time unit in the first pool of resources.
The method according to any of claims 14-17, wherein the first time unit is a time unit in which the first terminal device sends the first lateral control information.
The method of any of claims 13-18, wherein the first time range includes a number of time units determined based on any of:

determining based on the pre-configuration information;

determining based on the network configuration information;

is determined based on a preset value specified by a standard.
The method of any of claims 13-19, wherein the first time range comprises a plurality of time units that are time units in a first resource pool.
The method of claim 20, wherein the first resource pool is a resource pool used by the first terminal device.
The method of claim 21, wherein the first resource pool comprises a transmit resource pool and/or a receive resource pool used by the first terminal device.
The method according to any of claims 13-22, wherein the number of the at least one time-frequency resource is a minimum of the first parameter and the second parameter;

the first parameter is the total number of time-frequency resources selected by the first terminal equipment in the first time range; and the second parameter is the maximum value of the time-frequency resource indicated by the first side control information.
The method of claim 13 wherein the first SCI further includes second indication information,

the second indication information is used for indicating a resource reservation period; the resource reservation period characterizes a time interval length between at least one reserved time-frequency resource and the at least one time-frequency resource; the at least one reserved time-frequency resource corresponds to the at least one time-frequency resource one by one;

the method further comprises the steps of:

the second terminal equipment determines the number of logical time units corresponding to the resource reservation period; the logic time unit characterizes a time unit in a resource pool used by the second terminal equipment;

and the second terminal equipment performs resource elimination based on the number of the logic time units.
The method of claim 24, the second terminal device determining a number of logical time units corresponding to the resource reservation period, comprising:

and the second terminal equipment determines the number of the logic time units based on the number of micro time slots in the resource pool used by the second terminal equipment within the preset time length.
The method according to claim 24 or 25, the second terminal device determining a number of logical time units corresponding to the resource reservation period, comprising:

And the second terminal equipment determines the number of the logic time units based on the sum of the micro time slots and the number of time slots in the resource pool used by the second terminal equipment within the preset time length.
The method according to any of claims 13-26, wherein the resource pool used by the second terminal device comprises at least one of:

a transmission resource pool of the second terminal equipment;

and the second terminal equipment performs resource interception on the resource pool.
A resource indicating device applied to a first terminal device, the device comprising:

a transmitting unit configured to transmit first side control information; the first side control information is used for indicating at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.
A resource indicating device applied to a second terminal device, the device comprising:

a receiving unit configured to receive first side control information, where the first side control information is used to indicate at least one time-frequency resource in a first time range; at least some of the plurality of time units included in the first time range are minislots.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory for performing the method according to any of claims 1-12 or 13-27.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 1-12 or 13-27.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1-12 or 13-27.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1-12 or 13-27.
A computer program for causing a computer to perform the method of any one of claims 1-12 or 13-27.