CN111757470A

CN111757470A - Resource allocation method and communication device

Info

Publication number: CN111757470A
Application number: CN201910239483.3A
Authority: CN
Inventors: 温容慧; 黎超; 王俊伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-10-09
Anticipated expiration: 2039-03-27
Also published as: CN111757470B; WO2020192319A1

Abstract

A resource allocation method and a communication device are applicable to V2X, an intelligent driving automobile, an intelligent networking automobile and the like, wherein the resource allocation method comprises the following steps: determining a first message, where the first message carries configuration information and first indication information, where the configuration information is used to indicate a first resource configured for a first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device; sending the first message to the first terminal device. In this way, the first resource can be allocated to the first terminal device and the at least one second terminal device at the same time, and when the first terminal device does not use the first resource, the at least one second terminal device can use the first resource, so that the resource utilization rate can be improved.

Description

Resource allocation method and communication device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a resource allocation method and a communications apparatus.

Background

In a New Radio (NR) system, there are two scheduling mechanisms, one is a dynamic scheduling mechanism, that is, a terminal device requests a network device to allocate resources each time there is data transmission, and the network device allocates resources to the terminal device according to the request of the terminal device. In this way, the terminal device needs to wait for the network device to start allocating resources each time there is data transmission, so the time delay is long, i.e. the dynamic scheduling mechanism is not suitable for low-delay services. Another is unlicensed configuration scheduling (SPS), which is a semi-persistent scheduling (semi-persistent scheduling) mechanism in Long Term Evolution (LTE) system. That is, the network device actively allocates resources to the terminal device, so that the terminal device can directly perform data transmission on the allocated resources when transmitting data, and does not need to request the network device for allocating resources. Compared with a dynamic scheduling mechanism, the authorization-free configuration scheduling mechanism is suitable for low-delay service.

At present, under an authorization-free configuration scheduling mechanism, resources configured for a terminal device by a network device are all periodic. However, the SPS mechanism can support both periodic services and aperiodic services, and for aperiodic services, that is, when the terminal device does not send data, the terminal device does not use the resources allocated to the terminal device by the network device, thereby resulting in waste of resources.

Disclosure of Invention

The application provides a resource allocation method and a communication device, which are used for saving system resources when supporting aperiodic services under an authorization-free allocation scheduling mechanism.

In a first aspect, an embodiment of the present invention provides a resource allocation method. The method can be applied to network devices or devices such as chips with network functions, and comprises the following steps: determining a first message, where the first message carries configuration information and first indication information, where the configuration information is used to indicate a first resource configured for a first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device; sending the first message to the first terminal device.

In this embodiment, the network device indicates, by the first message, whether the first resource configured for the first terminal device is also configured for the at least one second terminal device, so that the first terminal device determines that data may be transmitted on the first resource when the at least one second terminal device does not transmit data on the first resource, so as to improve the utilization rate of the first resource as much as possible.

In one possible design, the first indication information may be used to indicate a time domain location where the at least one second terminal device transmits data in the first resource. Specifically, the first indication information may be used to indicate that the first terminal device and/or the at least one second terminal device occupy an offset between a time domain starting position of the first resource for transmitting data and a time domain starting position of the first resource, respectively.

In one possible design, the first indication information is used to indicate a Redundancy Version (RV) configured for the first terminal device and the at least one second terminal device.

In the above description, the indication manner of the first indication information may be various, and this is only to list a few, and the specific is not limited.

In one possible design, the configuration information is further used to indicate that the first terminal device and each second terminal device transmit data in the first resource with the same or different repetition times.

In this scheme, the first terminal device and the at least one second terminal device may repeat transmission of data by occupying the first resource for the repetition number configured based on the configuration information. In order to save resources, the network device may configure configuration information including different repetition times for the first terminal device and the at least one second terminal device, thereby ensuring that resources occupied by the first terminal device and the at least one second terminal device are within the maximum repetition times. The network device may configure configuration information including the same number of repetitions, for example, configuration information with the same maximum number of repetitions, for the first terminal device and the at least one second terminal device, so that the first terminal device and the at least one second terminal device may respectively occupy the first resource for data transmission according to the maximum number of repetitions, so as to improve reliability of data transmission as much as possible.

In one possible design, the method further includes: sending second indication information to the first terminal device, where the second indication information is used to indicate a manner in which the first terminal device and the at least one second terminal multiplex the first resource, and the second indication information may specifically be used to indicate: the first terminal device and the at least one second terminal device use the first resource in turn according to a scheduling cycle; or, the first terminal device and the at least one second terminal device use the first resource alternately in any one scheduling period.

In this scheme, the network device may notify the first terminal device and the at least one second terminal device of the multiplexing manner of the first resource through the second indication information, so that the first terminal device does not need to blindly detect whether the at least one second terminal device occupies the first resource to transmit data on the first resource, and a detection burden brought by the first terminal device for detecting whether the resource is available is reduced as much as possible. Meanwhile, the first terminal device and the at least one second terminal device can be ensured not to conflict when occupying the first resource to send data.

In one possible design, the first terminal device may also transmit data to one or more of the at least one second terminal device based on the first resources.

In this scheme, if the first terminal device sends data to one second terminal device or a plurality of second terminal devices based on the first resource, that is, the first terminal device and the second terminal device perform unicast service or multicast service, the first terminal device and the second terminal device originally do not send a Sidelink Control Information (SCI) of the data detection counterpart at the counterpart, and therefore the first terminal device and the second terminal device do not need to additionally detect whether each other is occupying the first resource to send data, and a detection burden caused by the first terminal device or the second terminal device for detecting whether the resource is available can be reduced.

In one possible design, the method further includes: receiving a second message from the first terminal device, the second message being used to instruct the at least one second terminal device to use some or all of the first resources. In this arrangement, for example, the first terminal device may reconfigure the first resources configured by the network device to at least one second terminal device in order to save resources as much as possible.

In one possible design, the first indication information may also be used to indicate whether the first terminal device needs to detect the SCI of the at least one second terminal device. In this scheme, the first indication information may also be used to indicate whether the first terminal device needs to detect the SCI of the at least one second terminal device, and the network device does not need to notify, through another indication information, whether the first terminal device needs to detect the SCI of the at least one second terminal device, so that signaling overhead may be reduced. Meanwhile, the first terminal device may determine whether it is necessary to detect the SCI of the at least one second terminal device according to the first indication information, that is, whether the at least one second terminal device transmits data on the first resource, so as to avoid collision when the at least one second terminal device occupies the first resource to transmit data, thereby improving reliability of data transmission.

In one possible design, the first indication information is further used to indicate that the first terminal device detects a temporal location of an SCI of the at least one second terminal device. In this scheme, the first indication information may also be used to indicate that the first terminal device detects a time-domain position of an SCI of at least one second terminal device, so that the first terminal device only needs to detect the SCI of the at least one second terminal device at the time-domain position indicated by the first indication information, and does not need to blindly detect the SCI of the second terminal device on the first resource, thereby reducing a detection burden brought by the first terminal device detecting the SCI of the second terminal device.

Specifically, the first indication information may be specifically used to indicate whether the first terminal device needs to detect SCIs of at least two second terminal devices, where the at least two second terminal devices may occupy the first resource in different time domains, or the at least two second terminal devices may occupy the first resource in different frequency domains.

In this scheme, the resources to which the at least two second terminal devices are configured may be multiple different frequency domain resources under the same time domain resource, or multiple different time domain resources under the same frequency domain resource, and in order to make the first terminal device have more resources available, the network device may configure the resources of the at least two second terminal devices to the first terminal device. In this case, the network device may instruct the first terminal device to detect SCIs of at least two terminals through the first indication information, so as to ensure that the first terminal device does not conflict with all of the second terminal devices occupying the first resource when transmitting data on the first resource.

In a second aspect, a second resource allocation method is provided, the method including:

a first terminal device receives a first message from a network device, wherein the first message carries configuration information and first indication information, the configuration information is used for indicating a first resource configured for the first terminal device, and the first indication information is used for indicating whether the first resource is also configured for at least one second terminal device;

the first terminal device transmits data to the network device on the first resource according to the first message.

The method may be performed by a second communication device, which may be the first terminal device or a communication device capable of supporting the first terminal device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip. Here, the second communication device is exemplified as the first terminal device.

In one possible design, the first indication information is used to indicate a time domain position where the at least one second terminal device transmits data in the first resource.

In one possible design, the method further includes:

and the first terminal device determines that the repetition times of the first terminal device and each second terminal device for transmitting data in the first resource are the same or different according to the configuration information.

In one possible design, the method further includes:

the first terminal device receiving second indication information from the network device, the second indication information being used for indicating a manner in which the first terminal device and the at least one second terminal multiplex the first resource; wherein the second indication information is specifically used for indicating:

the first terminal device and the at least one second terminal device use the first resource in turn according to a scheduling cycle; or, the first terminal device and the at least one second terminal device use the first resource alternately in any scheduling period;

the first terminal device transmitting data to the network device on the first resource according to the first message, including:

and the first terminal device sends data to the network device on the first resource according to the first message and the second indication information.

In one possible design, the method further includes:

the first terminal device sends a second message to the network device, wherein the second message is used for indicating the at least one second terminal device to use part or all of the first resources.

In one possible design, the first indication information is further used to indicate whether the first terminal device needs to detect the SCI of the at least one second terminal device.

In one possible design, the first indication information is further used to indicate that the first terminal device detects a temporal location of an SCI of the at least one second terminal device.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first indication information is used to indicate whether the first terminal device needs to detect SCIs of at least two second terminal devices, where the at least two second terminal devices occupy the first resource in different time domains, or the at least two second terminal devices occupy the first resource in different frequency domains.

With regard to the technical effects brought about by the second aspect or various possible embodiments of the second aspect, reference may be made to the introduction of the technical effects of the first aspect or various possible embodiments of the first aspect.

In a third aspect, a first network device is provided, for example, the communication device is the first communication device as described above. The network apparatus is configured to perform the method of the first aspect or any possible implementation manner of the first aspect. In particular, the network apparatus may comprise means for performing the method of the first aspect or any possible implementation manner of the first aspect, for example comprising a processing means and a transceiver means coupled to each other. Wherein the content of the first and second substances,

the processing module is configured to determine a first message, where the first message carries configuration information and first indication information, where the configuration information is used to indicate a first resource configured for a first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device;

the transceiver module is configured to send the first message to the first terminal apparatus.

In one possible design, the transceiver module is further configured to:

sending second indication information to the first terminal device, where the second indication information is used to indicate a manner in which the first terminal device and the at least one second terminal multiplex the first resource, and the second indication information is specifically used to indicate:

the first terminal device and the at least one second terminal device use the first resource in turn according to a scheduling cycle; or, the first terminal device and the at least one second terminal device use the first resource alternately in any one scheduling period.

In one possible design, the transceiver module is further configured to:

receiving a second message from the first terminal device, the second message being used to instruct the at least one second terminal device to use some or all of the first resources.

In one possible design, the first indication information is further used to indicate whether the first terminal device needs to detect the secondary link control message SCI of the at least one second terminal device.

In one possible design, the first indication information is used to indicate whether the first terminal device needs to detect SCIs of at least two second terminal devices, where the at least two second terminal devices occupy the first resource in different time domains or occupy the first resource in different frequency domains.

With regard to the technical effects brought by the third aspect or various possible embodiments of the third aspect, reference may be made to the introduction of the technical effects of the first aspect or various possible embodiments of the first aspect.

In a fourth aspect, there is provided a first terminal device, configured to perform the method in the second aspect or any possible implementation manner of the second aspect. In particular, the first terminal device may comprise means for performing the method of the second aspect or any possible implementation manner of the second aspect, for example comprising a processing means and a transceiver means coupled to each other. Wherein the content of the first and second substances,

the transceiver module is configured to receive a first message from a network device, where the first message carries configuration information and first indication information, the configuration information is used to indicate a first resource configured for a first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device;

the processing module is configured to send data to the network device on the first resource according to the first message.

In one possible design, the first indication information is used to indicate time domain location information of the at least one second terminal device transmitting data in the first resource.

In one possible design, the processing module is further to:

and determining that the repetition times of the first terminal device and each second terminal device for transmitting data in the first resource are the same or different according to the configuration information.

In one possible design, the transceiver module is further configured to:

receiving second indication information from the network device, where the second indication information is used to indicate a manner in which the first terminal device and the at least one second terminal multiplex the first resource; wherein the second indication information is specifically used for indicating:

the processing module is used for:

and sending data to the network device on the first resource according to the first message and the second indication information.

In one possible design, the transceiver module is further configured to:

sending a second message to the network device, the second message being used to instruct the at least one second terminal device to use some or all of the first resources.

With reference to the fourth aspect, in a possible implementation manner of the fourth aspect, the first indication information is further used to indicate that the first terminal device detects a time-domain location of an SCI of the at least one second terminal device.

With regard to the technical effects brought about by the fourth aspect or the various possible embodiments of the fourth aspect, reference may be made to the introduction of the technical effects of the second aspect or the various possible embodiments of the second aspect.

In a fifth aspect, a second network device is provided, for example, a first communication device as described above. The network apparatus comprises a processor and a transceiver for implementing the method as described in the first aspect above or in various possible designs of the first aspect. Illustratively, the network device is a chip provided in the communication apparatus. Illustratively, the communication device is a network device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the network device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. Wherein the content of the first and second substances,

the processor is configured to determine a first message, where the first message carries configuration information and first indication information, where the configuration information is used to indicate a first resource configured for a first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device;

the transceiver is configured to send the first message to the first terminal device.

In one possible design, the transceiver is further to:

With regard to the technical effects brought about by the fifth aspect or the various possible embodiments of the fifth aspect, reference may be made to the introduction of the technical effects of the first aspect or the various possible embodiments of the first aspect.

A sixth aspect provides a second first terminal device, for example a second communication device as described above. The first terminal device comprises a processor and a transceiver for implementing the method as described in the second aspect above or in various possible designs of the second aspect. Illustratively, the first terminal device is a chip provided in the communication apparatus. Illustratively, the communication device is a terminal device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. Wherein the content of the first and second substances,

the transceiver is configured to receive a first message from a network device, where the first message carries configuration information and first indication information, the configuration information is used to indicate a first resource configured for a first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device;

the processor is configured to send data to the network device on the first resource according to the first message.

In one possible design, the processor is further to:

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the transceiver is further configured to:

the processor is configured to:

In one possible design, the transceiver is further to:

With regard to the technical effects brought about by the sixth aspect or the various possible embodiments of the sixth aspect, reference may be made to the introduction of the technical effects of the second aspect or the various possible embodiments of the second aspect.

In a seventh aspect, a third network device is provided. The network device may be the first communication device in the above method design. Illustratively, the network device is a chip provided in the communication apparatus. The network device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions that, when executed by the processor, cause the third network device to perform the method of the first aspect or any one of the possible implementations of the first aspect.

Wherein, the third network device may further include a communication interface, and the communication interface may be a transceiver in the network device, for example, implemented by an antenna, a feeder, a codec, and the like in the third network device, or, if the third network device is a chip disposed in the network device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

In an eighth aspect, a third first terminal device is provided. The first terminal device may be the second communication device in the above method design. Illustratively, the first terminal device is a chip provided in the terminal device. The first terminal device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored in the memory comprises instructions which, when executed by the processor, cause the third first terminal device to carry out the method of the second aspect described above or any one of the possible embodiments of the second aspect.

Wherein the third first terminal device may further comprise a communication interface, which may be a transceiver in the first terminal device, for example, implemented by an antenna, a feeder, a codec, etc. in the communication device, or, if the third first terminal device is a chip disposed in the terminal equipment, the communication interface may be an input/output interface of the chip, for example, an input/output pin, etc.

In a ninth aspect, a communication system is provided, which may include the first network device of the third aspect, the second network device of the fifth aspect, or the third communication device of the seventh aspect, and include the first terminal device of the fourth aspect, the second first terminal device of the sixth aspect, or the third first terminal device of the eighth aspect.

A tenth aspect provides a computer storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

In an eleventh aspect, there is provided a computer storage medium having instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

In a twelfth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

In a thirteenth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the second aspect described above or any one of the possible designs of the second aspect.

In this embodiment, the network device indicates, by the first message, whether the first resource configured for the first terminal device is also configured for the at least one second terminal device, so that the first terminal device may send data on the first resource when determining that the at least one terminal device does not send data on the first resource, so as to improve the utilization rate of the first resource as much as possible.

Drawings

FIG. 1 is a diagram of several scenarios of V2X;

fig. 2 is a schematic view of an application scenario provided in the embodiment of the present invention;

FIG. 3 is a schematic view of RV;

fig. 4 is a flowchart of a resource allocation method according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a time position of a terminal device transmitting data in a first resource according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a time position of a terminal device transmitting data in a first resource according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a time position of a terminal device transmitting data in a first resource according to an embodiment of the present invention;

fig. 8 is another flowchart of a resource allocation method according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a time position of a terminal device transmitting data in a first resource according to an embodiment of the present invention;

fig. 10 is another flowchart of a resource allocation method according to an embodiment of the present invention;

fig. 11 is a diagram illustrating a plurality of first terminal apparatuses detecting SCIs of a second terminal device according to an embodiment of the present invention;

fig. 12 is a diagram illustrating a first terminal apparatus detecting SCIs of a plurality of second terminal devices according to an embodiment of the present invention;

fig. 13 is a diagram illustrating a first terminal apparatus detecting SCI of a second terminal device according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a communication device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1) Terminal apparatus, including devices providing voice and/or data connectivity to a user, may comprise, for example, a handheld device having wireless connection capability, or a processing device connected to a wireless modem. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The terminal apparatus may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a V2X terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (IoT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber state), a mobile station (mobile state), a remote station (remote state), an Access Point (AP), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), or a user equipment (user device), etc. For example, mobile telephones (or so-called "cellular" telephones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included mobile devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

A Terminal device may also be referred to as a Terminal equipment, a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), or the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote management), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in the vehicle), may be considered to be vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs), for example.

2) A network device, for example, including AN Access Network (AN) device, such as a base station (e.g., AN access point, a macro base station, a micro base station, or a relay station, etc.), may refer to a device in AN access network that communicates with a wireless terminal device through one or more cells over AN air interface, or, for example, a network device in V2X technology is a Road Side Unit (RSU). The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting the V2X application and may exchange messages with other entities supporting the V2X application. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved node B (NodeB) or eNB or e-NodeB in an LTE system or an LTE-a (long term evolution-advanced), or may also include a next generation node B (gNB) in a 5G NR system, or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud access network (Cloud RAN) system, which is not limited in the embodiments.

3) V2X, in version (Rel) -14/15/16, V2X has established itself as a major application of device-to-device (D2D) technology. The V2X optimizes the specific application requirements of V2X based on the existing D2D technology, and needs to further reduce the access delay of V2X devices and solve the problem of resource conflict.

V2X specifically includes several application requirements, such as vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) direct communication, and vehicle-to-network (V2N) communication interaction. As shown in fig. 1, V2V refers to inter-vehicle communication; V2P refers to vehicle-to-person communication (including pedestrians, cyclists, drivers, or passengers); V2I refers to vehicle to network device communication, such as RSU, and another V2N may be included in V2I, V2N refers to vehicle to base station/network communication.

Among them, the RSU includes two types: the RSU of the terminal type is in a non-mobile state because the RSU is distributed on the roadside, and the mobility does not need to be considered; the RSU, being of the base station type, can provide timing synchronization and resource scheduling to the vehicle with which it communicates.

4) Transmission of a Physical Uplink Shared Channel (PUSCH) in an NR system, the transmission of the PUSCH includes two types:

transmission based on dynamic scheduling mechanism

In the NR system, a dynamic scheduling mechanism is defined, that is, each time a terminal device has data to transmit, the network device requests the network device to allocate resources, and the network device transmits Downlink Control Information (DCI) to the terminal device according to the request of the terminal device, where the DCI includes uplink data scheduling information to tell the terminal device at what time-frequency resource position, and with what configuration parameters (for example, the configuration parameters include Modulation and Coding Scheme (MCS) or Redundancy Version (RV)), the uplink data is transmitted.

Transmission based on authorization-free configuration scheduling mechanism

Under the mechanism of the license-exempt configuration scheduling, a concept of configuring a license-exempt (CG) is defined. Currently, two configuration authorization-exempt types are defined, namely authorization-exempt Type 1(configured grant Type 1) and authorization-exempt Type 2(configured grant Type 2). The time-frequency resource location of the unlicensed type 1 is provided to the terminal device by the network device through Radio Resource Control (RRC) signaling, that is, the network device configures high-level parameters for the terminal device through the RRC signaling, for example, a period of the unlicensed scheduling resource, a location of the time-frequency resource to be scheduled without the licensed configuration, a number of processes using the unlicensed scheduling resource, and the like. After receiving the Configured higher layer parameter of the Uplink Grant (rrc-Configured Uplink Grant), the terminal apparatus may transmit data on the resource periodically Configured by the network apparatus.

The unlicensed type 2 is a network device that first transmits a higher layer parameter not including the rrc-Configured Uplink Grant, and then activates or deactivates the unlicensed type 2 by a physical layer or layer 1(L1) signaling (i.e., DCI). I.e. the network device sends DCI activation or deactivation CG type 2 in addition to higher layer parameters. When the network device activates the unlicensed type 2 through the DCI, SPS resources are simultaneously specified for the terminal device in the DCI, and the resources periodically appear according to the configured unlicensed configuration scheduling resource period without indicating the resource location through the DCI. The terminal device receives the high-level parameters which do not contain the rrc-configurable uplink grant, and when receiving the DCI, the terminal device can transmit data on the time frequency resources periodically configured by the network device.

5) Redundancy Version (Redundancy Version, RV): the configuration of the license-exempt Configured grant includes: transmission cycle, repetition number, transmission start time, RV, etc. The current 5G protocol defines 3 RVs, which are (0, 0, 0, 0), (0, 3, 0, 3), (0, 2, 3, 1). The RV defines a transmission timing at which the terminal device transmits data, and the terminal device can start transmitting data only at a timing at which the RV is 0. For example, referring to fig. 2, a schematic diagram of two RVs of a terminal device is shown, where one RV, for example, RV1 is (0, 3, 0, 3), and the network device configures the terminal device to transmit data with a repetition number of 8, so that the terminal device can start transmitting data only at the 1 st, 3 rd, 5 th and 7 th transmission opportunities. For another example, if the RV2 is (0, 2, 3, 1), and the network device configures the terminal device to transmit data with a repetition number of 8, the terminal device can start transmitting data only at the 1 st and 5 th transmission opportunities. Here, the number of repetitions indicates the maximum number of repetitions of data transmitted by the terminal device in one transmission cycle. In fig. 2, an example is given in which one transmission cycle (Periodicity) includes 8 transmission opportunities.

6) In an application scenario of a fifth generation mobile (5G) communication system, the International Telecommunications Union (ITU) defines three major application scenarios for 5G and future mobile communication systems, which are enhanced mobile broadband (eMBB), Ultra Reliable and Low Latency Communications (URLLC), and massive machine type communications (mtc), respectively. Among the typical eMBB services are: the services include ultra high definition video, Augmented Reality (AR), Virtual Reality (VR), and the like, and these services are mainly characterized by large transmission data volume and high transmission rate. Typical URLLC services are: the main characteristics of the applications of wireless control in industrial manufacturing or production processes, motion control of unmanned automobiles and unmanned airplanes, and haptic interaction such as remote repair and remote operation are that ultra-high reliability, low time delay, less transmission data volume and burstiness are required. Typical mtc services are: the intelligent power distribution automation system has the main characteristics of huge quantity of networking equipment, small transmission data volume and insensitivity of data to transmission delay, and the mMTC terminals need to meet the requirements of low cost and very long standby time. Different services have different requirements on the mobile communication system, and how to better support the data transmission requirements of multiple different services simultaneously is a technical problem to be solved by the current 5G communication system. For example, how to support URLLC service and eMBB service simultaneously is one of the hot spots for discussion of current 5G mobile communication systems.

7) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

And, unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first synchronization signal and the second synchronization signal are used only for distinguishing different synchronization signals, and do not indicate differences in the contents, priorities, transmission orders, importance levels, and the like of the two synchronization signals.

Having described some of the concepts related to the embodiments of the present application, the following describes features of the embodiments of the present application.

In NR systems, transmission of PUSCH may be based on a grant-less configured scheduling mechanism that supports periodic and aperiodic traffic. However, under the unlicensed configuration scheduling mechanism, the resource configured by the network device for the terminal device is periodic, and it may happen that the network device configures the resource for the terminal device, but the current terminal device does not need to transmit or receive data, which results in a waste of resources.

In view of this, the technical solutions of the embodiments of the present application are provided. In the embodiment of the present application, the plurality of terminal apparatuses may multiplex the same resource, for example, the first resource, so that when a terminal apparatus of the plurality of terminal apparatuses does not perform data transmission on the first resource, other terminal apparatuses of the plurality of terminal apparatuses may perform data transmission by using the first resource, thereby saving resources. When the network device configures the first resource for the certain terminal device, the network device may send indication information to the certain terminal device, where the indication information may be used to indicate that the first resource is not configured for other terminal devices, so that the certain terminal device may send data on the first resource according to the indication information, so as to avoid a collision that may be caused when the certain terminal device sends data by using the first resource.

The technical solution provided in the embodiment of the present application may be applied to a 5G system, for example, an NR system, or an LTE system, or may also be applied to a next generation mobile communication system or other similar communication systems, which is not limited specifically.

A network architecture applied in the embodiment of the present application is described below, please refer to fig. 3.

Fig. 3 includes a core network device, a network device, and at least one terminal device, and fig. 3 exemplifies that the at least one terminal device is two terminal devices. The terminal equipment is connected with the network device in a wireless mode, and the network device is connected with the core network equipment in a wireless or wired mode. The core network device and the network apparatus may be separate physical devices, or the function of the core network device and the logic function of the network apparatus may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the network apparatus. The terminal device may be fixed in position or may be movable. Fig. 3 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which are not shown in fig. 3. The embodiments of the present application do not limit the number of core network devices, network apparatuses, and terminal apparatuses included in the mobile communication system.

The network device is an access device that the terminal device accesses to the mobile communication system in a WIreless manner, and may be a base station NodeB, an evolved node b, a base station in a 5G communication system, a base station in a future mobile communication system, or an access node in a WIreless FIdelity (Wi-Fi) system, and the like.

The network device and the terminal device can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons, and satellites. The embodiments of the present application do not limit application scenarios of the network device and the terminal device.

The embodiment of the application can be applied to downlink signal transmission, uplink signal transmission and signal transmission of D2D. For downlink signal transmission, the transmitting device is a network apparatus, and the corresponding receiving device is a terminal apparatus. For uplink signal transmission, the transmitting device is a terminal apparatus, and the corresponding receiving device is a network apparatus. For D2D signaling, the transmitting device is a terminal device and the corresponding receiving device is also a terminal device. The embodiment of the present application does not limit the transmission direction of the signal.

The network device and the terminal device may communicate with each other via a licensed spectrum (licensed spectrum), may communicate with each other via an unlicensed spectrum (unlicensed spectrum), or may communicate with each other via both the licensed spectrum and the unlicensed spectrum. The network device and the terminal device may communicate with each other through a 6G or less spectrum, may communicate through a 6G or more spectrum, and may communicate through both a 6G or less spectrum and a 6G or more spectrum. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

The technical scheme provided by the embodiment of the application is described below with reference to the accompanying drawings.

The embodiment of the present application provides a first resource allocation method, please refer to fig. 4, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 1 or fig. 3 as an example. In addition, the method may be performed by two communication devices, e.g. a first communication device and a second communication device. The first communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the first communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or of course, other communication devices such as a system on a chip may be used. The same applies to the second communication device, which may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or of course, other communication devices such as a system-on-chip may also be used. The implementation manners of the first communication device and the second communication device are not limited, for example, the first communication device may be a network device, the second communication device may be a terminal device, or both the first communication device and the second communication device may be terminal devices, or the first communication device may be a network device, the second communication device may be a communication device capable of supporting the terminal device to implement the functions required by the method, and so on. The network device is, for example, a base station.

For convenience of description, hereinafter, the method is performed by the network device and the terminal device as an example, that is, the first communication device is the network device and the second communication device is the terminal device as an example. Since the present embodiment is applied to the network architecture shown in fig. 1 or fig. 3 as an example, the network device described below may be a network device in the network architecture shown in fig. 3, and the terminal device described below may be a terminal device in the network architecture shown in fig. 1 or fig. 3. If the first terminal device is hereinafter a vehicle 1 in the network architecture shown in fig. 1, the second terminal device may be hereinafter a vehicle 2 in the network architecture shown in fig. 1. Alternatively, if the first terminal device is hereinafter terminal device 1 in the network architecture shown in fig. 3, the second terminal device may be hereinafter terminal device 2 in the network architecture shown in fig. 3.

S41, the network device determines a first message, where the first message carries configuration information and first indication information, the configuration information is used to indicate a first resource configured for the first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device.

The network device may configure by means of the first message for configuring resources for a terminal device, e.g. the first terminal device. In the embodiment of the present application, determining the first message may also be understood as "generating" the first message or "obtaining" the first message, and the like, and the manner in which the network device determines the first message is not limited. The first message may be a dedicated signaling, for example, a Radio Resource Control (RRC) signaling or a Downlink Control Information (DCI) signaling. As an embodiment, the first message may carry configuration information, which may be used to indicate the first resource to be configured for the first terminal device. In order to save resources, the network device may also configure the first resources as at least one second terminal device. If the first terminal device and the at least one second terminal device both transmit data on the first resource, it may happen that the first terminal device and one or more of the second terminal devices transmit data on the first resource at the same time, and the first terminal device and the at least one second terminal device may interfere with each other, which affects the receiving end to normally receive data. Even more, the first terminal device or the at least one second terminal device fails to transmit data because the first terminal device and the at least one second terminal device interfere with each other.

For this reason, the first message may further carry first indication information, where the first indication information may be used to indicate whether the first resource is also configured to the at least one second terminal device, so that the first terminal device may know whether there are other terminal devices to reuse the first resource with the first terminal device according to the first indication information, and thus the first terminal device may determine how to transmit data on the first resource according to the first indication information, so as to avoid a collision that may be caused when the first resource is used by the at least one second terminal device to transmit data.

Alternatively, as another embodiment, the configuration information and the first indication information are sent in different messages, for example, the configuration information is carried in a first message, the first indication information is carried in a second message, and the network device may send the first message and the second message to the first terminal device. Similarly, the second message may also be RRC signaling or DCI signaling. The network device may send the first message and then send the second message, or may send the second message and then send the first message, or may send the first message and the second message at the same time.

In this embodiment of the application, the first indication information is used to indicate whether the first resource is also configured to the at least one second terminal device, and includes but is not limited to one of the following ways:

1. the first indication information occupies a bit whose value is used to indicate whether the first resource is also configured to the at least one second terminal device. For example, a value of 0 for the bit may indicate that the first resource is not configured to the at least one second terminal device; in contrast, a value of 1 for the bit may indicate that the first resource is also configured to the at least one second terminal device. Or, if the value of the bit is 1, it may indicate that the first resource is not configured to the at least one second terminal device; in contrast, a value of 0 for the bit may indicate that the first resource is also configured to the at least one second terminal device. The first indication information occupies one bit to save the bit number occupied by the first indication information as much as possible.

2. The first indication information is used for indicating a time domain position of at least one second terminal device for sending data in the first resource, and this way, whether the first resource is configured to the at least one second terminal device or not is indicated in an implicit way. Since the at least one second terminal device may transmit data at certain time domain positions on the first resource, the implicit indication that the first resource is configured to the at least one second terminal device.

For example, the configuration information may also be used to indicate an RV configured for the first terminal device, and the first indication information may occupy at least two bits, for example, may be a bitmap corresponding to the RV. Fig. 5 is a schematic diagram of a time domain position of a terminal device transmitting data in a first resource. The RV configured by the network device for the first terminal device (UE1 shown in fig. 5) is (0, 3, 0, 3), and the first indication information is 00, which is used to indicate that no second terminal device can occupy the first resource, that is, the first resource is not configured to one second terminal device; alternatively, the first indication information may be 01, which is used to indicate that the starting time domain position where the second terminal device (UE2 shown in fig. 5) occupies the first resource is the 2 nd transmission opportunity, that is, the second terminal device may occupy the first resource at the 2 nd transmitter. For another example, please refer to fig. 6, which is a schematic diagram of a time domain position of a terminal device transmitting data in a first resource. The network device configures the first terminal device (UE1 shown in fig. 6) with RV of (0, 2, 3, 1), and the first indication information may be 0010, indicating that a second terminal device (UE 3 shown in fig. 6) may occupy the first resource at the 3 rd transmitter; alternatively, the first indication information may be 0000, which indicates that no second terminal apparatus may occupy the first resource; alternatively, the first indication information may be 0110, which indicates that the second terminal devices may occupy the first resource at the 2 nd transmission opportunity and the 3 rd transmission opportunity, respectively, and the two second terminal devices may be the UE2 and the UE3 in fig. 6. Of course, the indication by bitmap is only an example, and the embodiment of the present application is not limited to how to indicate whether the first resource is configured to the at least one second terminal device through the first indication information.

In a specific implementation, the first indication information indicates a time domain position of the first terminal device and at least one second terminal device for transmitting data in the first resource, including but not limited to one of the following ways:

1) the first indication information may be used to indicate an offset between a time domain start position of the first terminal device transmitting data in the first resource and a time domain start position of the first resource. In this case, the network device and the first terminal device may have a predetermined agreement, and it may be default that an offset between a time domain start position of the first resource at which each of the at least one second terminal device transmits data and a time domain start position of the first resource is 0.

2) The first indication information may be used to indicate an offset between a time domain start position of the at least one second terminal device for transmitting data in the first resource and a time domain start position of the first resource. In this case, the network device and the first terminal device may agree in advance, and may default that the offset between the time domain start position of the first terminal device transmitting data in the first resource and the time domain start position of the first resource is 0.

3) The first indication information may be used to indicate an offset between a time domain starting position of the first terminal device for transmitting data in the first resource and a time domain starting position of the first resource, and an offset between a time domain starting position of each of the at least one second terminal device for transmitting data in the first resource and a time domain starting position of the first resource.

In the above modes 1) -3), the time domain starting position of the first terminal device for transmitting data in the first resource and the time domain starting position of the second terminal device for transmitting data in the first resource may adopt the RV indication.

Specifically, please refer to fig. 5, which is a schematic diagram of a time position of the terminal device transmitting data in the first resource. The RV configured by the network device for the first terminal device (UE1 in fig. 5) and the second terminal device (UE2 in fig. 5) is both (0, 3, 0, 3). The first indication information may be used to indicate an offset of a time domain starting position of the UE1 for transmitting data on the first resource from a time domain starting position of the first resource, and/or an offset of a time domain starting position of the UE2 for transmitting data on the first resource from a time domain starting position of the first resource. For example, the first indication information may indicate that the UE1 has an offset of 0 from the time domain starting position of the first resource for transmitting data in the first resource and indicates that the UE2 has an offset of 1 from the time domain starting position of the first resource for transmitting data in the first resource, then, corresponding to fig. 5, the UE1 may start transmitting data from the 1 st transmission opportunity while the UE2 may start transmitting data from the 1 st transmission opportunity according to the RV originally, but since the first indication information indicates that the UE2 has an offset of 1 from the time domain starting position of the first resource for transmitting data in the first resource, the UE2 starts transmitting data in the 2 nd transmission opportunity. If the network device configures 8 repetitions for both UE1 and UE2, the time domain starting positions of UE1 for transmitting data on the first resource are respectively odd transmission opportunities (1, 3, 5, 7), and the time domain starting positions of UE2 for transmitting data on the first resource are respectively even transmission opportunities (2, 4, 6, 8).

It should be noted that the network device may also configure different time domain starting transmission positions in the first resource for the first terminal device and the at least one second terminal device, so as to avoid interference caused by simultaneous data transmission by the first terminal device and the at least one second terminal device. For example, the network device configures different RVs for the first terminal device and the at least one second terminal device to correspond to different time domain initial transmission positions. In this case, the network device may not notify the respective time domain start transmission positions of the first terminal device and the at least one second terminal device.

4) The first indication information may further implement a time domain position indicating that the first terminal device transmits data on the first resource and/or a time domain position indicating that the at least one second terminal device transmits data on the first resource by indicating an RV configured for the first terminal device and the second terminal device.

In a possible embodiment, the first indication information may carry RV information configured for the first terminal device and/or RV information configured for the second terminal device. For example, the first indication information carries RV information indicating that the RV of the first terminal device is (0, 3, 0, 3), and the RV indicated by the second terminal device is (3, 0, 3, 0). Then it can be determined from the RV information in the first indication information that the time domain starting positions of the first terminal device for transmitting data in the first resource are respectively odd transmission opportunities (1, 3, 5, 7), and the time domain starting positions of the second terminal device for transmitting data in the first resource are respectively even transmission opportunities (2, 4, 6, 8). Since the RV of (3, 0, 3, 0) is not defined in the current 5G protocol, in this case, the network device and the terminal device may agree in advance on an option of newly adding the RV, for example, (3, 0, 3, 0), and the network device may configure the RV for the terminal device through signaling, which may carry RV information indicating (3, 0, 3, 0).

It should be noted that, in the above embodiment, the RV indicates the time domain starting position of the first terminal device transmitting data on the first resource in the first indication information, and/or the time domain starting position of at least one second terminal device transmitting data on the first resource is only an example. The embodiment of the present application may also indicate the information in other manners, for example, the first resource includes 8 time units in the time domain, 8 bits may be used to respectively indicate the 8 time units (transmission opportunities), each 1bit indicates whether the corresponding time unit is also configured to the second terminal device, and then 2 bits are used to indicate the time domain starting position of the first terminal device for transmitting data on the first resource, and/or the time domain starting position of at least one second terminal device for transmitting data on the first resource.

In this embodiment of the application, the first indication information may indicate a time domain position of the first terminal device and/or the second terminal device for sending data in the first resource, so that the first terminal device may determine how to send data on the first resource according to the first indication information, so as to avoid that the first terminal device and the second terminal device occupy the same resource as much as possible, and simultaneously send data to cause data sending failure, thereby improving reliability of data transmission.

S42, when the network device sends the first message to the first terminal device, the first terminal device receives the first message from the network device.

After the network device determines the first message, if the first message is dedicated signaling, the network device sends the first message to the first terminal device, where "send" is understood to be unicast, and the terminal device may receive the first message from the network device.

S43, the first terminal device transmits data to the network device on the first resource according to the received first message.

If the first message includes the configuration information and the first indication information, after the first terminal device receives the first message, the first terminal device may determine, according to the configuration information carried in the first message, the first resource configured for the first terminal device by the network device. The first terminal device may further determine whether the first terminal device is configured to the at least one second terminal device according to the first indication information carried in the first message, so as to send data to the network device on the first resource according to the first indication information, so as to avoid a collision with the at least one second terminal device on the first resource, and improve reliability of data transmission.

Specifically, the first terminal device may determine, according to the first indication information, a time domain position at which data is transmitted in each scheduling period, and whether SCIs of respective ones of the at least one second terminal device are to be detected before transmitting the data. Wherein a certain second terminal device may be considered to transmit data on the first resource if the first terminal device detects the SCI of the certain second terminal device. The first terminal device may determine a starting time domain position of the transmitted data according to the time domain position of the transmitted data in each scheduling period and the detected SCIs of the second terminal devices, so as to avoid a collision with a second terminal device that may transmit the data, for example, the first terminal device and the second terminal device transmit the data at the same time in the same time domain position.

Depending on the possible implementation manners of the first indication message, the manner in which the first terminal device determines the time domain position of the data to be transmitted in each scheduling period according to the first indication message, and whether to detect the SCI of each second terminal device before transmitting the data, also differs, including but not limited to one of the following manners:

1. if the first indication information occupies 1bit for indicating whether the first resource is also configured to at least one second terminal device, the first terminal device determines that it is necessary to detect the SCI of the previous transmission opportunity before transmitting the start time domain position of the data before transmitting the data each time according to the first indication information. This is because the first indication information only indicates whether the first resource is multiplexed or not and does not indicate at which time domain positions the first resource is multiplexed, so that the first terminal device needs to detect the SCI before transmitting data each time to ensure as far as possible that collision with at least one second terminal device on the first resource is avoided. If the first terminal device determines that the second terminal device transmits data at the current transmission opportunity at which the first terminal device transmits data on the first resource according to the detected SCI, the first terminal device does not transmit data at first, but transmits data at the current transmission opportunity when determining that the current transmission opportunity has no data transmitted by the second terminal device.

Of course, if the first indication information indicates that the first resources are not configured to the at least one second terminal device, the first terminal device need not detect the SCI of any second terminal device. Referring again to fig. 8, the general process of the embodiment of fig. 4 can be seen by way of fig. 8. As can be seen from fig. 8, the network device may transmit the configuration information and the first indication information to the first terminal device (UE1) and the second terminal device (UE2), respectively. The UE1 and the UE2 may determine whether to detect each other's SCI according to the first indication information, and when the first resource is not simultaneously configured to the UE1 and the UE2, there is no need to detect each other's SCI, so the SCI is illustrated by a dotted line in fig. 8.

2. And if the first indication information occupies at least two bits, the first indication information is used for indicating the time domain position of at least one second terminal device for transmitting data in the first resource. The first terminal device may determine from the first indication information at what location of the first resource to detect the SCI without blind detection, i.e. without possibly detecting the SCI of the transmission opportunity before the start time domain location of the transmission data before each transmission of the data, thereby alleviating the burden on the first terminal device as much as possible.

Specifically, the first terminal device determines, through the configuration of the network device, such as the configuration information and the first indication information, the offset of the transmission start time domain position of the data transmitted by the first terminal device on the first resource, the repetition number within one scheduling period, the transmission period, and the period number to determine the transmission time domain position and the maximum transmission number of the data transmitted within the current scheduling period, and the transmission start time domain position of the data transmitted by at least one second terminal device on the first resource, so that the first terminal device further determines whether it is necessary to detect the SCI of the second terminal device before the transmission time domain position of the data transmitted within the current scheduling period. If the SCI of the second terminal device needs to be detected and the SCI of the second terminal device is detected, it is further determined which resources on the first resources are available based on the detected SCI, and data is sent on the determined available resources.

Here, the offset of the start transmission time domain position of the first terminal device for transmitting data on the first resource is the offset of the first transmission opportunity of the first terminal device for transmitting data on the first resource from the time domain position indicated by the configuration information in the first message (the offset of the time domain start position of the first resource), for example, the number of transmission opportunities offset from the time position indicated by the configuration information. The cycle number may be a number starting from 0, which is the cycle of the first transmission opportunity, and 1, which is the cycle of the next first transmission opportunity. The transmission periods may be adjacent period intervals.

After the first terminal device detects the SCI of the at least one second terminal device, it may be determined which resources on the first resources are available based on the detected SCI. Taking the first terminal device as an example, how to determine which resources on the first resource are available based on the detected SCI is described below. It is noted that the procedure by which the second terminal device determines which resources on the first resource are available according to the detected SCI is the same as the procedure by which the first terminal device determines which resources on the first resource are available according to the detected SCI.

Before describing how to determine which resources on the first resource are available based on the detected SCI, how to determine the maximum number of transmissions per cycle and the initial transmission opportunity to transmit data is described.

It is assumed that the network device notifies the terminal device through the RV configuration, for example, the RV configured for the first terminal device by the network device is (0, 2, 3, 1), and the first resource is also configured to be 3 second terminal devices, that is, the number of multiplexed users of the first resource is 3. For example, referring to fig. 7, fig. 7 is a time domain position diagram of a plurality of terminal devices transmitting data in a first resource. Fig. 7 illustrates an example including 3 terminal devices, where the 3 terminal devices are UE1, UE2, and UE3, RV configured by the network device for UE1, UE2, and UE3 are all (0, 2, 3, 1), and maximum repetition times of transmitting data on the first resource configured by the network device for UE1, UE2, and UE3 are all the same, for example, the maximum repetition time is 8. During the first period (the first period from the left in fig. 7), the UE1 has an opportunity to start transmitting data first, whereas by the second period, the UE3 has an opportunity to start transmitting data first, so as to equalize the delays of the traffic transmission of the plurality of terminal apparatuses as much as possible. In fig. 7, the first terminal device starts a transmission opportunity with the 1 st transmission opportunity and the 5 th transmission opportunity as the initial transmission opportunity in the 1 st period, and the maximum number of repetitions is 8; the first terminal device takes the 2 nd transmission opportunity and the 6 th transmission opportunity as initial transmission opportunities in the 2 nd period, and the maximum repetition number is 7; the first terminal device takes the 3 rd transmission opportunity and the 7 th transmission opportunity as initial transmission opportunities in the 3 rd period, and the maximum repetition number is 6; the first terminal device starts a transmission opportunity by using the 1 st transmission opportunity and the 5 th transmission opportunity again in the 4 th cycle, and the maximum repetition number is 8. It should be noted that if the terminal device repeatedly transmits data a plurality of times, the initial transmission opportunity is 1 and is transmitted at most 8 times within the period configured by the network device, and if the initial transmission opportunity is not the first transmission opportunity, the terminal device needs to stop transmitting to the end position of the resource allocation even if the maximum repetition number is not 8 times. For example, in the first period, the UE1 starts transmitting data at the 1 st transmission opportunity and may repeat the transmission up to 8 times, while the UE2 starts transmitting at the 2 nd transmission opportunity and may repeat the transmission up to 7 times, that is, stops transmitting data when transmitting to the resource allocation deadline.

In addition, in this embodiment, the network device and the terminal device may agree that the initial transmission opportunity in each period is modulo the number of multiplexed users, and sequentially delay 1 transmission opportunity. This is because it is impossible to always allow a terminal apparatus to start transmitting data first, in a case where a plurality of terminal apparatuses are in a fair condition. This is exemplified in fig. 7.

When the first terminal device determines which resources on the first resource are available according to the detected SCI, the first terminal device may determine a start sending position and an end sending position where the second terminal device sends data according to the detected maximum number of repetitions of data sent by the second terminal device this time, where the repetitions are carried by the SCI of the second terminal device. For example, if the number of repetitions required for the second terminal device to transmit data this time is 2 and the time domain initial transmission position of the transmission data is located at the first transmission opportunity in one scheduling period, the other terminal devices may determine that the terminal device needs to occupy the 1 st transmission opportunity and the 2 nd transmission opportunity to transmit data according to the SCI.

For ease of understanding, please continue to refer to fig. 7, taking one transmission cycle as an example, when the first indication message configured by the network apparatus for the UE1 indicates that the UE1 has an offset of 0 from the time domain starting position of the first resource for transmitting data, the UE1 may determine that there is no need to detect the SCI at the 1 st transmission opportunity and that the maximum number of repetitions of the UE1 for transmitting data on the first resource is 8. When the first indication message configured for the UE2 by the network device indicates that the UE2 has an offset of 1 from the time domain starting position of the first resource for transmitting data, the UE2 may determine that data transmission may begin at the 2 nd transmission opportunity, the UE2 may need to detect the SCI of the UE1 at the 1 st transmission opportunity, and the UE2 may determine that the maximum number of repetitions for transmitting data on the first resource is 7. If the UE2 detects the SCI of the UE1 at the 1 st transmission opportunity, then the UE2 does not transmit data at the 2 nd transmission opportunity first, the UE2 may sequentially detect whether the SCI of the UE1 exists for the 2 nd transmission opportunity and the transmission opportunities following the 2 nd transmission opportunity, until the UE2 does not detect the SCI of the UE1, then the UE2 transmits data at the initial transmission opportunity of the next configuration. In addition, if the number of repetitions of the present transmission is indicated in the SCI of the first terminal device, the second terminal device can determine which remaining resources of the first resources are available based on the SCI without detecting the SCI of the first terminal device at all transmission opportunities.

In the above embodiment, the maximum number of repetitions configured by the network device for the first terminal device and the at least one second terminal device is different, that is, the maximum number of repetitions for the first terminal device and the at least one second terminal device to transmit data in the first resource is different. In this case, the resources occupied by the first terminal device and the at least one second terminal device are both within the maximum number of repetitions. For example, please refer to fig. 7 continuously, the time domain resource occupies 8 transmission opportunities at most in one transmission period, and the maximum repetition times of different terminal devices are different, so as to ensure that the occupied time resource does not exceed 8 transmission opportunities (time units), thereby saving the resource.

As another embodiment, the configuration information may be further used to indicate that the maximum number of repetitions of data transmission on the first resource by each of the first terminal device and the at least one second terminal device is the same, that is, the maximum number of repetitions configured by the network device for the first terminal device and the at least one second terminal device is the same. In this case, since the time domain starting transmission positions of the first terminal device and the at least one second terminal device for transmitting the data on the first resource are different, the resources occupied by the first terminal device and the at least one second terminal device may be more in order to ensure the same maximum number of repetitions for the first terminal device and the at least one second terminal device.

For convenience of understanding, please refer to fig. 9, which illustrates an example that fig. 9 includes two terminal devices, UE1 and UE2, and a principle that when the number of repetitions of the configuration of the first terminal device and the at least one second terminal device is the same, the first terminal device and the at least one second terminal device occupy more resources.

Fig. 9 takes the network device as an example that the RV configured for the UE1 and the UE2 is (0, 3, 0, 3), the UE1 may determine that the 1 st transmission opportunity, the 3 rd transmission opportunity, the 5 th transmission opportunity, or the 7 th transmission opportunity is used as the time domain initial transmission position for transmitting data, and it is not necessary to detect the SCI of the UE2 at the 1 st transmission opportunity, but it is necessary to detect the SCI of the UE2 of the previous transmission opportunity at all of the 3 rd transmission opportunity, the 5 th transmission opportunity, or the 7 th transmission opportunity. The UE2 may determine that the 2 nd, 4 th, 6 th, or 8 th transmission opportunity may be the time domain starting transmission location for transmitting data and at each starting transmission location needs to detect the SCI of the UE1 of the previous transmission opportunity. As can be seen from fig. 9, in order to ensure that the UE1 and the UE2 have the same maximum repetition number, in the first period (the first period from the left in fig. 9), the time unit occupied by the UE2 is also 8 transmission opportunities, but one transmission opportunity is extended to the time domain direction, so that the time unit occupied by the UE1 and the UE2 is 9 transmission opportunities, and compared with the time unit occupied by the UE1 and the UE2 (i.e., 8 transmission opportunities) in the first period in fig. 7, the time unit occupied by the UE1 and the UE2 in fig. 9 is more. Similarly, in the second period in fig. 9, the time unit occupied by the UE1 is extended by one transmission opportunity in the time domain direction, and the time units occupied by the UE1 and the UE2 are also large.

In an embodiment of the present application, a first terminal device and at least one second terminal device multiplex a first resource. In a possible embodiment, the network device may further instruct the first terminal device and the at least one second terminal device how to multiplex the first resource. In this case, the first terminal device and the at least one second terminal device multiplex the first resource according to the instruction of the network device, without additionally increasing the number of times of detecting SCIs of each other, thereby reducing the burden on the terminal devices.

For example, the network device may transmit second indication information to the first terminal device, the second indication information indicating a manner in which the first terminal device multiplexes the first resources with the at least one second terminal. It should be noted that the second indication information here may also be the first indication information as described above, that is, the first indication information is also used for instructing the first terminal device to reuse the first resource with the at least one second terminal, which is helpful for reducing signaling overhead. Hereinafter, the network device transmits the second instruction information to the first terminal device as an example.

The multiplexing mode in which the first terminal device and the at least one second terminal device multiplex the first resource may also be different according to the types of services performed by the first terminal device and the at least one second terminal device. In the embodiment of the present application, the multiplexing manner in which the first terminal device and the at least one second terminal device multiplex the first resource includes, but is not limited to, one of the following manners:

1. one possible application scenario is that the first terminal device sends data to one of the at least one second terminal device based on the first resource, i.e. the first terminal device and the second terminal device perform unicast traffic. In this scenario, the multiplexing mode in which the first terminal apparatus and the second terminal apparatus multiplex the first resource includes one of the following modes:

1) the second indication information may be used to indicate that the first terminal device and the second terminal device use the first resource by turns according to the scheduling period.

In one possible embodiment, the network device configures the first terminal device and the second terminal device with the same first resource. The second indication information may occupy 1bit, and a value of the bit may indicate that the first terminal device transmits data in the first resource using an odd transmission period and indicate that the second terminal device transmits data in the first resource using an even transmission period. For example, if the value of this bit is 0, the first terminal device is instructed to transmit data in the first resource using the odd transmission period, and the second terminal device is instructed to transmit data in the first resource using the even transmission period. Of course, this is only an example, and it is also possible that the value of this bit is 1, which instructs the first terminal device to transmit data in the first resource using the odd transmission period, and instructs the second terminal device to transmit data in the first resource using the even transmission period. The odd transmission cycle herein may be understood as a 1 st transmission cycle, a 3 rd transmission cycle, etc. on the first resource, and correspondingly, the even transmission cycle may be understood as a 2 nd transmission cycle, a 4 th transmission cycle, etc. on the first resource.

In another possible embodiment, the network device configures the first resource for the first terminal device, but the first terminal device configures part or all of the first resource to the second terminal device, for example, the first terminal device sends the configuration information to the second terminal device through the sidelink resource. The configuration information may include a part of or all of the first resource, or a repetition number, a transmission period, and the like. After the first terminal device configures resources for the second terminal device, a third message may be sent to the network device, where the third message is used to instruct the second terminal device to use part or all of the resources in the first resources, so as to inform the network device that the resources used by the second terminal device are resources of the first terminal device, and thus, the network device may send a second indication information according to the third message, that is, a multiplexing mode for multiplexing the first resources is specified for the first terminal device and the second terminal device. In this case, the second indication information may be used to indicate that the second terminal device uses the first resource in turn with the first terminal device according to the scheduling period, starting at the 1 st period after receiving the configuration information sent by the first terminal device.

It should be noted that, in this case, the third message may also be used to instruct the network apparatus not to reconfigure the first resource configured to the first terminal apparatus to the other terminal apparatus. The other terminal device herein refers to a terminal device other than the second terminal device.

2) The second indication information may be used to indicate that the first terminal device and the second terminal device use the first resource alternately in any one scheduling period.

In one possible implementation, the second indication information may be used to indicate time domain offsets of the first terminal device and the second terminal device in the 1 st transmission period of the first resource, so that the first terminal device and the second terminal device may determine, according to the second indication information, a starting transmission position of transmission data in the 1 st transmission period for the time domain offsets respectively specified, and then start to transmit data at the determined starting transmission position. In this way, the first terminal device and the second terminal device do not need to wait for the next transmission period to start transmitting data, which is beneficial to reducing the time delay of transmitting data and is beneficial to service transmission with lower time delay requirement.

Alternatively, in another possible embodiment, the network device may not send the second indication information to the first terminal device and the second terminal device, in which case, the network device and the first terminal device may agree in advance that the first terminal device and the second terminal device multiplex the first resource in a preset multiplexing manner. One possible preset multiplexing manner may be to set the order of transmitting data according to the size of an Identification (ID) of the first terminal device and an ID of the second terminal device. For example, the smaller the ID, the higher the priority to start transmitting data, for example, since the first terminal device and the second terminal device are performing unicast traffic, the first terminal device and the second terminal device know the respective IDs to each other, and if the ID of the first terminal device is smaller than the ID of the second terminal device, the first terminal device and the second terminal device may determine that the first resource is multiplexed in such a manner that the first terminal device starts transmitting data at the 1 st transmission opportunity of the 1 st transmission cycle and the second terminal device starts transmitting data at the 1 st transmission opportunity of the 2 nd transmission cycle.

The multiplexing method for multiplexing the first resource by the first terminal device and the second terminal device according to the above two embodiments is applicable to both the case where the network device allocates the same first resource to the first terminal device and the second terminal device, and the case where the first terminal device allocates part or all of the first resource allocated by the network device to the second terminal device.

The network device indicates, through the second indication information, a multiplexing mode in which the first terminal device and the second terminal device multiplex the first resource, or indicates, by the network device, the first terminal device and the second terminal device to multiplex the first resource in an agreed mode, so as to avoid a possible collision when the first terminal device and the second terminal device perform a unicast service as much as possible, so as to avoid a problem that the first terminal device and the second terminal device cannot hear a message of the other party.

2. One possible application scenario is that a first terminal device sends data to a plurality of second terminal devices based on a first resource, that is, the first terminal device and the plurality of second terminal devices perform a multicast service.

In this case, the second indication information may be used to indicate that the first terminal device and the plurality of second terminal devices use the first resource alternately in any one scheduling period. In one possible implementation, the second indication information may be used to indicate a time domain offset of each of the first terminal device and the plurality of second terminal devices in the 1 st transmission period of the first resource, so that the first terminal device and each of the second terminal devices may determine a starting transmission position of the transmission data in the 1 st transmission period for the respectively specified time domain offsets according to the second indication information, and then start to transmit the data at the determined starting transmission position. For example, if the RVs used by the first terminal device and the plurality of second terminal devices are both (0, 2, 3, 1), the second indication information may indicate that the first terminal device and each of the second terminal devices transmit data at different positions corresponding to the RVs.

The network device indicates, through the second indication information, a multiplexing mode in which the first terminal device and the plurality of second terminal devices multiplex the first resource, that is, the first terminal device and the plurality of second terminal devices use the first resource in turn, so as to avoid a possible collision when the first terminal device and the plurality of second terminal devices perform a multicast service as much as possible, so as to avoid a problem that the first terminal device and the plurality of second terminal devices cannot hear a message of the other party.

The first terminal device and the at least one second terminal device multiplex the first resource, and the utilization rate of the first resource can be improved. However, if the first resource is allocated to the first terminal device and the at least one second terminal device by the network device through the unlicensed configuration scheduling mechanism, the first terminal device and the at least one second terminal device may periodically use the first resource. However, if the first terminal device and the at least one second terminal device utilize the first resource for the aperiodic service, the first terminal device and the at least one second terminal device do not necessarily transmit data on the first resource, which may cause a waste of resources.

For this reason, in the embodiment of the present application, the network device may instruct the terminal device that configures the resource through the dynamic scheduling mechanism to utilize the first resource, so as to further improve the utilization rate of the resource. In the following, the first terminal device is taken as a terminal device that configures resources through a dynamic scheduling mechanism, and the second terminal device is taken as a terminal device that configures resources through an unlicensed configuration scheduling mechanism. The network device notifies the first terminal device of using the resource of the second terminal device in a notification manner, which includes but is not limited to one of the following:

1. referring again to fig. 10, the general process of the embodiment of fig. 4 can be seen by way of fig. 10. The network device sends configuration information for the second terminal device for configuring resources for the second terminal device. Likewise, the network device may also send configuration information for the first terminal device for configuring resources for the first terminal device. Except that the resources indicated by the configuration information for the second terminal device are the same as the resources indicated by the configuration information for the first terminal device.

2. The network device may first configure the second terminal device with the resource, and send configuration information for configuring the resource for the second terminal device to the first terminal device in advance to inform the first terminal device that the resource configured for the second terminal device can be used. The network device may send the configuration information of the plurality of second terminal devices to the first terminal device in advance, and the plurality of second terminal devices may be some or all of the terminal devices that configure the resource through the unlicensed configuration scheduling mechanism.

3. The network device transmits the configuration information to the first terminal device to configure the resource, and in addition, the network device can further transmit a piece of information to the first terminal device to inform the first terminal device through the piece of information, and the resource configured for the first terminal device by the network device is the resource of the second terminal device. For example, the network device may transmit DCI to the first terminal device, the DCI carrying indication information indicating whether the resource configured for the first terminal device is a resource of the second terminal device. For example, the indication information includes 1bit, and when the value of this bit is 0, it indicates that the resource configured for the first terminal device is the resource of the second terminal device. Alternatively, when the value of this bit is 1, it indicates that the resource configured for the first terminal apparatus is the resource of the second terminal apparatus.

With continued reference to fig. 10, in order to avoid a collision caused by the first terminal device and the second terminal device multiplexing the resource transmission data, the network device may transmit dynamic scheduling signaling for configuring the resource for the first terminal device, and when the resource configuration information is shown in fig. 10, the first terminal device may further be notified whether to detect the SCI of the at least one second terminal device through the first indication information. If the first terminal device does not detect any SCI of the second terminal device, the first terminal device may transmit data in accordance with the scheduling indication of the network device. If the first terminal device detects the SCI of one or more second terminal devices, it can determine which resources on the multiplexed resource with the second terminal device or devices are available to transmit data according to the detected SCI, so as to avoid collision that may occur when transmitting data with the second terminal device or devices.

Further, the first indication information may be used to indicate that the first terminal device detects a temporal location of an SCI of the at least one second terminal device. In one possible approach, a second terminal device corresponds to a temporal location of the detected SCI. If the first indication information is received by the first terminal device, the SCI of at least one second terminal device may be detected according to the time domain position indicated by the first indication information. If the first terminal device does not detect the SCI, data may be transmitted on the configured resources in accordance with the scheduling information of the network device. If the first terminal device detects the SCI of the second terminal device, it may be determined whether data may be transmitted on the resources configured by the network device based on the SCI of the second terminal device. Since the first terminal device does not necessarily detect the SCI of the second terminal device, the SCI is also illustrated by the dashed line in fig. 10.

Specifically, the first indication information may indicate through a bit mapping manner, for example, the first indication information occupies two bits whose values are used to indicate where the first terminal device starts to detect the SCI of the at least one second terminal device in the allocated resource. For example, if the first indication information is 00, it may indicate that the first terminal device does not need to detect the SCI of the at least one second terminal device; if the first indication information is 01, it may indicate that the first terminal device detects the SCI of at least one second terminal device 1 transmission opportunity ahead when transmitting data; the first indication information is 10, which may indicate that the first terminal device detects the SCI of the at least one second terminal device 2 transmission opportunities ahead when transmitting data; the first indication information is 11, which may indicate that the first terminal device detects the SCI of the at least one second terminal device 3 transmission opportunities ahead when transmitting data. As another embodiment, the first indication information may occupy 4 bits, for example, the first indication information is 0000, which may indicate that the first terminal device does not need to detect the SCI of the at least one second terminal device; the first indication information is 0010, which may indicate that the first terminal device detects the SCI of the at least one second terminal device 2 transmission opportunities ahead when transmitting data. Alternatively, the first indication information may also use 1bit to indicate whether the first terminal device needs to detect the SCI of at least one second terminal device of the first 1 transmission opportunities.

After receiving the configuration information and the first indication information from the network device, the first terminal device may determine whether it is necessary to detect the SCI of the second terminal device according to the resource configured for the second terminal device by the network device, and the received configuration information and the first indication information. That is, it is determined whether the resource occupied by the first terminal device for transmitting data will coincide with the resource occupied by the second terminal device for transmitting data. If the resources do not coincide, the first terminal device may directly transmit the number; if the resources coincide, the first terminal device needs to detect the SCI of the second terminal device, and determines which resources to transmit data on the coinciding resources according to the detected SCI.

Of course, if the network device sends the configuration information of the at least one second terminal device to the first terminal device in advance, after the first terminal device receives the configuration information of the at least one second terminal device and receives the configuration information indicating the first resource from the network device, it may be determined whether the first resource is a resource configured by the network device for the at least one second terminal device according to the configuration information of the at least one second terminal device and the first resource configuration information, and it may be determined whether it is necessary to detect SCIs of the plurality of second terminal devices according to the determination result. If a first resource configured for a first terminal device by the network device coincides with a resource configured for at least one second terminal device by the network device, the first terminal device needs to detect the SCI of the second terminal device; if the first resources configured by the network device for the first terminal device do not coincide with the resources configured by the network device for the at least one second terminal device, the first terminal device does not need to detect the SCI of the second terminal device.

To facilitate understanding of how the first terminal device detects the SCI of the second terminal device according to the first indication information, the following description will be schematically presented with reference to fig. 11.

Please refer to fig. 11, which is a diagram illustrating a plurality of first terminal devices detecting SCI of a second terminal device. Fig. 11 illustrates the second terminal device as UE1, and the plurality of first terminal devices as UE2, UE3, UE4, and UE 5. The network device configures the RV used by UE1 to be (0, 2, 3, 1). The network device configures the 1 st, 2 nd and 3 rd transmission opportunities for the UE2, the UE3, the UE4 and the UE5 to transmit data after the UE1 transmits data. Meanwhile, the network device configures UE2, UE3, UE4, and UE5 to detect SCI at the 1 st transmission opportunity of UE 1. The SCI of the UE1 may carry information about the repeated transmission of the UE1 or whether the next transmission opportunity will transmit data. If the UE1 has data to send, the network device configures the UE1 with 2 repetitions. The UE2 detects the SCI of the UE1 at the 1 st transmission opportunity of the UE1, as indicated by the arrow in fig. 11 to detect the location of the SCI. Since UE1 has data to send and the number of repetitions is 2, UE1 will occupy the 1 st and 2 nd transmission opportunities, so UE2 determines that data cannot be sent in the 2 nd transmission opportunity, i.e., UE2 cannot send data. Fig. 11 illustrates with an identification "X" of the 2 nd transmission opportunity that the UE2 cannot transmit data at the 2 nd transmission opportunity. For the UE3, the UE3 also detects the SCI of the UE1 at the 1 st transmission opportunity of the UE1, and determines that the UE1 may occupy the 1 st transmission opportunity and the 2 nd transmission opportunity, but the UE3 may start transmitting data from the 3 rd transmission opportunity without colliding with the 1 st transmission opportunity and the 2 nd transmission opportunity occupied by the UE1, so the UE3 may start transmitting data at the 3 rd transmission opportunity. As with UE3, UE4 may determine that data may be transmitted at the 4 th transmission opportunity. For the UE5, because the UE1 may still start transmitting data at the 5 th transmission opportunity, the UE5 needs to detect the SCI of the UE1 at the 1 st and 5 th transmission opportunities of the UE1 and determine which transmission opportunities are available to transmit data according to the SCI.

Fig. 11 illustrates a process in which a plurality of first terminal apparatuses detect SCI of one second terminal apparatus. In practice, one resource may correspond to multiple terminal devices, and each of the multiple terminal devices may transmit data, so that the resources configured for the multiple terminal devices may be multiple different frequency domain resources under the same time domain resource, or multiple different time domain resources under the same frequency domain resource. In this embodiment, since the first terminal device and the second terminal device multiplex the first resource, in order to avoid that no resource is available when the first terminal device transmits data, the network device may configure a plurality of resources for the first terminal device. For example, the resource configured by the network device for the first terminal device may be a plurality of different frequency domain resources under the same time domain resource, or a plurality of different time domain resources under the same frequency domain resource.

In this case, the first indication information may be used to indicate whether the first terminal device detects SCIs of at least two second terminal devices. The first terminal device detects SCIs of the at least two second terminal devices according to the first indication information, and determines which resources on the resources multiplexed by the first terminal device and the at least two second terminal devices can be used for transmitting data according to the detection result. Also, the first indication information may be used to indicate that the first terminal device detects a temporal location of SCIs of each of the at least two second terminal devices.

The first terminal device transmits data on the configured resources according to the scheduling of the network device if the first terminal device does not detect the SCI of any of the second terminal devices. If the first terminal device has multiple resources available, the first terminal device may select one resource from the multiple resources for transmitting data in a preset resource selection manner. In this case, the network device does not need to give an additional indication to the first terminal device, and signaling overhead can be saved. In a possible implementation manner, the preset resource selection manner may be to select a resource with the lowest frequency domain resource sequence number, select a resource with the best channel quality, and select a resource with the earliest transmission start time. The first terminal device may select a resource from a preset resource selection manner based on the ongoing service demand. For example, if the traffic performed by the first terminal device requires a low delay, the first terminal device may select the resource with the earliest transmission start time to shorten the delay for transmitting the traffic as much as possible. For another example, if a service performed by the first terminal apparatus requires high transmission reliability, the first terminal apparatus may select a resource with the best channel quality so as to ensure the transmission reliability of the performed service as much as possible.

Or, if the first terminal device detects SCIs of some or all of the at least two second terminal devices, and determines that multiple resources are available according to the detected SCIs, it may select one resource from the multiple resources in the preset selection manner to transmit data in the manner described above, which is not described herein again. If the first terminal device determines from the detected SCI that one resource is available, the first terminal device may transmit data on this one resource.

Or, if the first terminal device detects SCIs of some or all of the at least two second terminal devices, it is determined that no resources are available according to the detected SCIs, otherwise, a collision will occur with the at least two second terminal devices, and the first terminal device does not transmit data.

For ease of understanding, please refer to fig. 12, which illustrates a process in which one first terminal device detects SCIs of a plurality of second terminal devices. Fig. 12 exemplifies the case where two second terminal devices, that is, UE1 and UE2, are included, and the first terminal device is UE 3. The network device configures the RV used by UE1 to be (0, 3, 0, 3), and the network device configures the RV used by UE2 to be (0, 2, 3, 1). The network device configures the UE3 to simultaneously detect the SCIs of the UE1 and the UE2 at the 1 st transmission opportunity, as schematically illustrated by the arrow in fig. 12 to detect the locations of the SCIs. If neither UE1 nor UE2 has data to transmit on the 1 st transmission opportunity, then UE3 may select the resources of UE1 or UE 2. Further, since the resource sequence number corresponding to the UE1 is smaller than the resource sequence number corresponding to the UE2, the UE3 may preferentially select the resource of the UE1 to transmit data.

For another example, referring to fig. 13, a process for a first terminal device to detect the SCI of a second terminal device is illustrated. Fig. 13 shows an example in which the first terminal apparatus is UE2 and the first terminal apparatus is UE 1. The network device configures the RV used by UE1 to be (0, 2, 3, 1). The network device configures the resources that the UE2 can send data to be the 2 nd, 3 rd and 4 th transmission opportunities and configures the UE2 to detect the SCI of the UE 1. The UE2 detects the SCI of the UE1 at the 1 st transmission opportunity of the UE1, the location of which is schematically indicated by an arrow in fig. 13. If the UE2 determines that the UE1 transmits data on the 1 st and 2 nd transmission opportunities according to the detected SCI of the UE1, as the shaded area in FIG. 13 indicates that the UE1 transmits data on the 1 st and 2 nd transmission opportunities, the UE2 determines that data can be transmitted on the 3 rd transmission opportunity, data can be transmitted on the 4 th transmission opportunity, and data cannot be transmitted on the 2 nd transmission opportunity. The UE2 may further select a transmission opportunity to transmit data in advance, such as the 3 rd transmission opportunity to transmit data. Fig. 13 indicates that the 2 nd transmitter corresponding to UE2 is unable to transmit data by "X" and that the 3 rd transmitter corresponding to UE2 is unable to transmit data by "Y". Fig. 13 only illustrates the procedure of detecting the SCI of one second terminal device by one first terminal device, and in fact, the procedure of detecting the SCI of each of a plurality of second terminal devices by one first terminal device is the same as that of fig. 13, which is not illustrated here.

As described above, the network device indicates, by the first message, whether the first resource configured for the first terminal device is also configured for the at least one second terminal device, so that the first terminal device may transmit data on the first resource when determining that the at least one terminal device does not transmit data on the first resource, so as to improve the utilization of the first resource as much as possible. Meanwhile, the first indication information is used for indicating whether the first terminal device detects the SCI of the at least one second terminal device, so as to avoid possible collision of the first terminal device and the at least one second terminal device in the first resource.

The following describes an apparatus for implementing the above method in the embodiment of the present application with reference to the drawings. Therefore, the above contents can be used in the subsequent embodiments, and the repeated contents are not repeated.

Fig. 14 is a schematic structural diagram of a network device according to an embodiment of the present application, for example, a schematic structural diagram of a base station. As shown in fig. 14, the base station can be applied to the system shown in fig. 1 or fig. 3, and performs the functions of the network device in the above method embodiment. The base station 140 may include one or more radio frequency units, such as a Remote Radio Unit (RRU) 1401 and one or more baseband units (BBUs) (which may also be referred to as digital units, DUs) 1402. The RRU1401, which may be referred to as a transceiver unit, transceiver circuit, or transceiver, etc., may comprise at least one antenna 14011 and a radio frequency unit 14014. The RRU1401 is mainly used for transceiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending the first message described in the above embodiment to a terminal device. The BBU1402 is mainly used for performing baseband processing, controlling a base station, and the like. The RRU1401 and the BBU1402 may be physically disposed together or may be physically disposed separately, i.e. distributed base station.

The BBU1402 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, and spreading. For example, the BBU (processing unit) 1402 can be used to control a base station to perform the operational procedures described above with respect to the network apparatus in the method embodiments.

In an example, the BBU1402 may be formed by one or more boards, and the boards may jointly support a radio access network (e.g., an LTE network) with a single access indication, or may respectively support radio access networks (e.g., LTE networks, 5G networks, or other networks) with different access schemes. The BBU1402 also includes a memory 14021 and a processor 14022, the memory 14021 for storing necessary instructions and data. For example, the memory 14021 stores the configuration information and the first indication information in the above-described embodiments. The processor 14022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation procedure of the method embodiment described above with respect to the network device. The memory 14021 and processor 14022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

Fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device can be applied to the system shown in fig. 1 or fig. 3, and performs the functions of the terminal device in the above method embodiment. For convenience of explanation, fig. 15 shows only main components of the terminal apparatus. As shown in fig. 15, the terminal device 150 includes a processor, a memory, a control circuit, an antenna, and an input-output device. The processor is mainly configured to process the communication protocol and the communication data, and control the entire terminal device, execute the software program, and process data of the software program, for example, to support the terminal device to perform the actions described in the above method embodiments, such as sending data according to the first message. The memory is mainly used for storing software programs and data, for example, storing the configuration information and the first indication information described in the above embodiments. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together, which may also be called a transceiver, are mainly used for transceiving radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user.

When the terminal device is started, the processor can read the software program in the storage unit, interpret and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the terminal device, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into the data and processes the data.

Those skilled in the art will appreciate that fig. 15 shows only one memory and one processor for ease of illustration. In an actual terminal device, there may be multiple processors and multiple memories. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this embodiment of the present application.

As an alternative implementation manner, the processor may include a baseband processor and/or a central processing unit, where the baseband processor is mainly used to process the communication protocol and the communication data, and the central processing unit is mainly used to control the whole terminal device, execute a software program, and process data of the software program. The processor in fig. 15 may integrate the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network formats, a plurality of central processors to enhance its processing capability, and various components of the terminal device may be connected by various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In the embodiment of the present application, an antenna and a control circuit having a transceiving function may be regarded as the transceiving unit 1501 of the terminal apparatus 150, for example, for supporting the terminal apparatus to perform a receiving function and a transmitting function as described in part of fig. 4. A processor having a processing function is regarded as the processing unit 1502 of the terminal device 150. As shown in fig. 15, the terminal apparatus 150 includes a transceiving unit 1501 and a processing unit 1502. The transceiver unit 1501 may also be referred to as a transceiver, transceiving means, etc. Alternatively, a device for implementing a receiving function in the transceiving unit 1501 may be regarded as a receiving unit, and a device for implementing a sending function in the transceiving unit 1501 may be regarded as a sending unit, that is, the transceiving unit 1501 includes a receiving unit and a sending unit, the receiving unit may also be referred to as a receiver, an input port, a receiving circuit, or the like, and the sending unit may be referred to as a transmitter, a sending circuit, or the like.

The processor 1502 may be configured to execute the instructions stored in the memory to control the transceiver unit 1501 to receive and/or transmit signals, so as to implement the functions of the terminal device in the above-described method embodiments. As an implementation manner, the function of the transceiving unit 1501 may be considered to be implemented by a transceiving circuit or a dedicated chip for transceiving.

Fig. 16 shows a schematic diagram of a communication device 1600. The apparatus 1600 may be used to implement the methods described in the above method embodiments, which may be referred to as descriptions in the above method embodiments. The communication device 1600 may be a chip, a network device (e.g., a base station), a terminal device or other network device, etc.

The communication device 1600 includes one or more processors 1601. The processor 1601 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of the software program. The communication device may include a transceiving unit to enable input (reception) and output (transmission) of signals. For example, the communication device may be a chip, and the transceiving unit may be an input and/or output circuit of the chip, or a communication interface. The chip may be for a terminal or base station or other network device. As another example, the communication device may be a terminal or a base station or other network device, and the transceiver unit may be a transceiver, a radio frequency chip, or the like.

The communication device 1600 includes one or more of the processors 1601, where the one or more processors 1601 are capable of implementing the method of the network device or the terminal device in the embodiment shown in fig. 4.

In one possible design, the communications apparatus 1600 includes means (means) for generating the configuration information and the first indication information, and means (means) for transmitting the configuration information and the first indication information. The functions of generating means for the configuration information and the first indication information and sending means for the configuration information and the first indication information may be implemented by one or more processors. The configuration information and the first indication information may be generated, for example, by one or more processors, and transmitted through a transceiver, or an input/output circuit, or an interface of a chip. The configuration information and the first indication information may refer to the related description in the above method embodiment.

In one possible design, the communications apparatus 1600 includes means (means) for receiving configuration information and first indication information, and means (means) for transmitting data according to the configuration information and the first indication information. The configuration information and the first indication information and how to transmit data according to the configuration information and the first indication information may be referred to the related description in the above method embodiment. The configuration information and the first indication information may be received, for example, via a transceiver, or an interface of an input/output circuit, or a chip, and data may be transmitted via one or more processors according to the configuration information and the first indication information.

Optionally, the processor 1601 may also implement other functions than the method of the embodiment shown in fig. 4.

Alternatively, in one design, the processor 1601 may execute instructions that cause the communication device 1600 to perform the methods described in the method embodiments above. The instructions may be stored in whole or in part within the processor, such as instructions 1603, or may be stored in whole or in part in a memory 1602 coupled to the processor, such as instructions 1604, or may collectively cause the communication device 1600 to perform the methods described in the above method embodiments via

instructions

1603 and 1604.

In yet another possible design, the communication device 1600 may also include circuitry that may implement the functionality of the network device or the terminal device in the foregoing method embodiments.

In yet another possible design, the communication device 1600 may include one or more memories 1602 having stored thereon instructions 1604 that are executable on the processor to cause the communication device 1600 to perform the methods described in the method embodiments above. Optionally, the memory may further store data therein. Instructions and/or data may also be stored in the optional processor. For example, the one or more memories 1602 may store the corresponding relations described in the above embodiments, or the related parameters or tables referred to in the above embodiments. The processor and the memory may be provided separately or may be integrated together.

In yet another possible design, the communication device 1600 may further include a transceiver 1605 and an antenna 1606. The processor 1601 may be referred to as a processing unit and controls a communication device (a terminal or a base station). The transceiver 1605 may be called a transceiver, a transceiving circuit, or a transceiver, and is used for implementing transceiving functions of the communication device through the antenna 1606.

The present application also provides a communication system comprising one or more of the aforementioned network devices, and one or more terminal devices.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component. The various methods, steps, and logic blocks disclosed 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 directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and direct memory bus 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.

The present application further provides a computer-readable medium, on which a computer program is stored, where the computer program is executed by a computer to implement the communication method in any of the above method embodiments.

The embodiment of the present application further provides a computer program product, and when executed by a computer, the computer program product implements the communication method described in any of the above method embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to execute the resource allocation method in any of the above method embodiments.

It should be understood that the processing device may be a chip, the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated in the processor, located external to the processor, or stand-alone.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that in the embodiment of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

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

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

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

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented in hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, the method is simple. Any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, a server, or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a Digital Subscriber Line (DSL), or a wireless technology such as infrared, radio, and microwave, the coaxial cable, the fiber optic cable, the twisted pair, the DSL, or the wireless technology such as infrared, radio, and microwave are included in the fixation of the medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy Disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

In short, the above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for resource allocation, comprising:

determining a first message, where the first message carries configuration information and first indication information, where the configuration information is used to indicate a first resource configured for a first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device;

sending the first message to the first terminal device.

2. The method of claim 1, wherein the first indication information is used to indicate a time domain location where the at least one second terminal device transmits data in the first resource.

3. The method of claim 1 or 2, wherein the configuration information is further used to indicate that the first terminal device and each second terminal device transmit data in the first resource with the same or different number of repetitions.

4. The method of any of claims 1-3, wherein the method further comprises:

5. The method of claim 4, wherein the method further comprises:

6. The method according to any of claims 1-5, wherein said first indication information is further used to indicate whether said first terminal device needs to detect a secondary link control message, SCI, of said at least one second terminal device.

7. The method of claim 6, wherein the first indication information is further for indicating that the first terminal device detects a temporal location of the SCI of the at least one second terminal device.

8. The method of claim 6, wherein the first indication information is used for indicating whether the first terminal device needs to detect SCIs of at least two second terminal devices, wherein the at least two second terminal devices occupy the first resource in different time domains or occupy the first resource in different frequency domains.

9. A method for resource allocation, comprising:

the first terminal device transmits data to the network device at the first resource according to the first message.

10. The method of claim 9, wherein the first indication information is used to indicate a time domain location where the at least one second terminal device transmits data in the first resource.

11. The method of claim 9 or 10, wherein the method further comprises:

12. The method of any of claims 9-11, wherein the method further comprises:

the first terminal device transmitting data to the network device at the first resource according to the first message, including:

and the first terminal device transmits data to the network device by using the first resource according to the first message and the second indication information.

13. The method of claim 12, wherein the method further comprises:

14. The method according to any of claims 9-13, wherein said first indication information is further used to indicate whether said first terminal device needs to detect the SCI of said at least one second terminal device.

15. The method of claim 14, wherein the first indication information is further for indicating that the first terminal device detects a temporal location of the SCI of the at least one second terminal device.

16. The method of claim 14, wherein the first indication information indicates whether the first terminal device needs to detect SCIs of at least two second terminal devices, wherein the at least two second terminal devices occupy the first resource in different time domains or the at least two second terminal devices occupy the first resource in different frequency domains.

17. A network apparatus, comprising:

a processor, configured to determine a first message, where the first message carries configuration information and first indication information, where the configuration information is used to indicate a first resource configured for a first terminal device, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal device;

a transceiver for transmitting the first message to the first terminal device.

18. The network apparatus of claim 17, wherein the first indication information is for indicating a time domain location where the at least one second terminal apparatus transmits data in the first resource.

19. The network apparatus according to claim 17 or 19, wherein the configuration information is further used to indicate that the first terminal apparatus and each second terminal apparatus transmit data in the first resource with the same or different repetition times.

20. The network apparatus of any of claims 17-19, wherein the transceiver is further configured to:

21. The network apparatus of claim 20, wherein the transceiver is further configured to:

22. The network apparatus according to any of claims 17-21, wherein the first indication information is further used to indicate whether the first terminal apparatus needs to detect the secondary link control message SCI of the at least one second terminal apparatus.

23. The network apparatus of claim 22, wherein the first indication information is further for indicating that the first terminal apparatus detected a temporal location of the SCI of the at least one second terminal apparatus.

24. The network apparatus of claim 22, wherein the first indication information indicates whether the first terminal apparatus needs to detect SCIs of at least two second terminal apparatuses, wherein the at least two second terminal apparatuses occupy the first resource in different time domains or the at least two second terminal apparatuses occupy the first resource in different frequency domains.

25. A first terminal device, comprising:

a transceiver, configured to receive a first message from a network device, where the first message carries configuration information and first indication information, where the configuration information is used to indicate a first resource configured for a first terminal apparatus, and the first indication information is used to indicate whether the first resource is also configured for at least one second terminal apparatus;

a processor configured to send data to the network device on the first resource according to the first message.

26. The first terminal apparatus of claim 25, wherein the first indication information is used to indicate a time domain location at which the at least one second terminal apparatus transmits data in the first resource.

27. The first terminal apparatus of claim 25 or 26, wherein the processor is further configured to:

28. The first terminal apparatus according to any of claims 25-27, wherein the transceiver is further configured to:

receiving second indication information from the network device, where the second indication information is used to indicate a manner in which the first terminal apparatus and the at least one second terminal multiplex the first resource; wherein the second indication information is specifically used for indicating:

the processor is configured to:

and sending data to the network equipment on the first resource according to the first message and the second indication information.

29. The first terminal apparatus of claim 28, wherein the transceiver is further configured to:

30. The first terminal device according to any of claims 25-29, wherein said first indication information is further used to indicate whether said first terminal device needs to detect the SCI of said at least one second terminal device.

31. The first terminal apparatus of claim 30, wherein the first indication information is further for indicating that the first terminal apparatus detects a temporal location of the SCI of the at least one second terminal apparatus.

32. The first terminal apparatus of claim 30, wherein the first indication information is used to indicate whether the first terminal apparatus needs to detect SCIs of at least two second terminal apparatuses, wherein the at least two second terminal apparatuses occupy the first resource in different time domains or the at least two second terminal apparatuses occupy the first resource in different frequency domains.

33. A computer-readable storage medium, characterized in that it stores a computer program which, when executed by a computer, causes the computer to perform the method of any one of claims 1 to 8 or the method of any one of claims 9 to 16.