CN115150770A

CN115150770A - Resource scheduling method and related device

Info

Publication number: CN115150770A
Application number: CN202110352343.4A
Authority: CN
Inventors: 范巍巍; 张鹏; 张佳胤; 汪少波; 周国华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-10-04
Also published as: WO2022206655A1

Abstract

The embodiment of the application discloses a resource scheduling method which can be applied to a communication system related to a sidelink, such as a V2X system of a vehicle to other equipment. The method is applied to the unlicensed frequency band and comprises the following steps: the first communication device sends a first signaling to the second communication device; the first field in the first signaling is used for indicating a time slot interval T between two adjacent transport blocks in M transport blocks TB in sidelink transmission, wherein the sidelink is used for communication between the second communication device and at least one third communication device, and T is greater than or equal to 0,M and is an integer greater than 1. In the embodiment of the present application, a first communication device indicates data transmission of a plurality of transport blocks through one signaling (first signaling) to reduce transmission delay of a second communication device (terminal device).

Description

Resource scheduling method and related device

Technical Field

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

Background

The sidelink (sidelink) technology refers to a technology that allows direct interaction between a terminal device and a terminal device, for example, a car networking is a common application scenario of the sidelink, and vehicle to other device (V2X) communication is an important key technology for implementing environment awareness and information interaction in the car networking, where the other device may be other vehicles, infrastructure, mobile terminal devices, and the like. V2X communication can be regarded as an application scenario of device to device (D2D) communication. For example, the vehicles are directly communicated with each other, and the driving state information and the road condition between the vehicles are interactively acquired in real time, so that the driving of the vehicles is better assisted, and even the automatic driving is realized.

The resource scheduling supported by the V2X communication technology is divided into two categories: a scenario that is based on cellular network coverage, the cellular network comprising: fifth generation (5 generation,5 g) communication systems, also known as New Radio access technology (NR) and fourth generation (4 generation,4 g) communication systems, when an indication of transmission resources between user nodes is implemented by a user to network interface-universal (Uu) of a cellular network; the other is resource scheduling independent of the cellular network, and transmission resources are configured by protocol default or the terminal configures itself in an area without network deployment.

Currently, in a scenario based on cellular network coverage, a network device supports data transmission of a Transport Block (TB) by configuring a sidelink SL resource through Downlink Control Information (DCI). For a data transmission scenario with multiple TBs, multiple DCI signaling are used for configuration, so that a User Equipment (UE) has a problem of long transmission delay.

Disclosure of Invention

In a first aspect, an embodiment of the present application provides a resource scheduling method, where the method is applied to an unlicensed frequency band, and includes:

the first communication device sends a first signaling to the second communication device; the first field in the first signaling is used for indicating a time slot interval T between two adjacent transport blocks in M transport blocks TB in sidelink transmission, wherein the sidelink is used for communication between the second communication device and at least one third communication device, and T is greater than or equal to 0,M and is an integer greater than 1.

For example: m =3 is an example, i.e. the first signaling indicates equal slot intervals between transport block 0, transport block 1 and transport block 2. The slot interval T =3 between transport block 0 and transport block 1, and the slot interval T =3 between transport block 1 and transport block 2.

Wherein the M value is carried by Radio Resource Control (RRC) signaling to configure the second communication device and/or the third communication device.

In the embodiment of the present application, the first communication device indicates data transmission of a plurality of transport blocks through one signaling (first signaling), to reduce the transmission delay of the second communication device (terminal equipment).

With reference to the first aspect, in a possible implementation manner of the first aspect, a first communication device sends a second signaling to a third communication device, where the second signaling is used to schedule a first resource, the first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), the first resource is used for at least one third communication device to send first data to the first communication device, the first data is data received by the at least one third communication device through a second resource, and the second resource is a communication resource in a Physical layer sidelink Shared Channel (psch);

the first communication device broadcasts a third signaling, where the third signaling is used to indicate an offset value between a first Hybrid Automatic Repeat request (HARQ) process identifier and a second HARQ process identifier, where the first HARQ process identifier is an HARQ process identifier corresponding to a second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to a first resource scheduled by the first signaling.

In the embodiment of the application, by the above manner, the problem that the first communication device cannot determine which third communication devices (CUEs) to schedule at the uplink scheduling time so as to avoid uplink resource waste caused by that part of CUEs do not correctly receive the first data can be solved.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first communication device receives first data at the first resource, and the first data is from at least one third communication device. In this embodiment of the present application, the first communication device receives, at the first resource, first data from at least one third communication device, that is, the first data is data assisting a CUE in a communication scenario to upload.

With reference to the first aspect, in a possible implementation manner of the first aspect, the second signaling is a physical layer downlink control signaling DCI; the third signaling is physical layer downlink control signaling DCI. The realization flexibility of the scheme is improved.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first domain includes: a first subfield and a second subfield; the first subfield is used for indicating a time slot interval T1 of adjacent two transmissions in N transmissions of the same transmission block, wherein T1 is greater than or equal to 0,N and is an integer greater than 0; the second subfield is used to indicate a slot interval T between M transport blocks, where T is greater than or equal to 0.

In the embodiment of the application, the first signaling may support scheduling of one transport block or scheduling of multiple transport blocks, thereby improving the flexibility of use.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first sub-field is invalid when N is equal to 1. Specifically, when the same transport block indicated by the first signaling is transmitted only 1 time, i.e., N =1, the first subzone is invalid. Since the first subfield is used to indicate the slot interval T1 of adjacent two transmissions of N transmissions of the same transport block, when the same transport block is transmitted only 1 time, T1 does not exist. I.e. the first sub-field is not active. It should be noted that the first sub-field invalidation may also be referred to as first sub-field retention (reserved). So as to reduce the change of the signaling and reduce the communication resource overhead.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first signaling is a downlink control signaling DCI format3_0, and the first field is a time resource assignment field allocated for a time resource.

In the embodiment of the present application, the number of bits occupied by the first field in the first signaling is 5 or 9 bits. Specifically, in the embodiment of the present application, the time resource allocation field is re-interpreted. It should be noted that the first field may also be other fields in the first signaling. The "domain" in the embodiments of the present application may also be referred to as a "field", i.e., "first domain" is equal to "first field".

With reference to the first aspect, in a possible implementation manner of the first aspect, the first signaling further includes a second field, where the second field is used to indicate a corresponding minimum hybrid automatic repeat request, HARQ, process identity in the M transport blocks. Illustratively, M =3 is taken as an example, and the transport blocks to be transmitted in the sidelink include transport block 0, transport block 1, and transport block 2. Assume that transport block 0 corresponds to HARQ process id =0, transport block 1 corresponds to HARQ process id =1, and transport block 2 corresponds to HARQ process id =2. In this implementation manner, the HARQ process identifier used by the second domain for indicating is HARQ process identifiers corresponding to the transport blocks other than the transport block corresponding to the minimum HARQ process identifier in 0,M, and sequentially increases progressively on the basis of the HARQ process identifier indicated by the second domain. Exemplarily, the HARQ process identifier corresponding to the transport block 1 is incremented on the basis of the HARQ process identifier indicated in the second domain (the HARQ process identifier corresponding to the transport block 0), that is, the HARQ process identifier corresponding to the transport block 1 is 1; the HARQ process identifier corresponding to the transport block 2 is incremented on the basis of the HARQ process identifier corresponding to the transport block 1, that is, the HARQ process identifier corresponding to the transport block 2 is 2.

In the embodiment of the application, a plurality of HARQ process numbers are indicated through limited bits, so that communication resources are saved.

With reference to the first aspect, in a possible implementation manner of the first aspect, HARQ process identifiers corresponding to the remaining transport blocks except for the transport block corresponding to the minimum HARQ process identifier in the M transport blocks are sequentially incremented on the basis of the HARQ process identifier indicated by the second domain.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first signaling is a downlink control signaling DCI format3_0, and the second field is a hybrid automatic repeat request process number HARQ process number field.

In this embodiment, the number of bits occupied by the second field in the first signaling is 4 bits. Specifically, in the embodiment of the present application, the HARQ process number field of the HARQ process number is re-interpreted.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first signaling further includes a third field, where the third field is used to indicate an initial transmission identifier or a retransmission identifier of the M transport blocks, and each bit in the third field corresponds to one HARQ process identifier.

Optionally, each bit in the third field corresponds to one HARQ process identifier one by one according to a progressive relationship. Illustratively, M =3 is taken as an example, and the transport blocks to be transmitted in the sidelink include transport block 0, transport block 1 and transport block 2. The first bit in the third field corresponds to the HARQ process id of transport block 0, the second bit corresponds to the HARQ process id of transport block 1, and the third bit corresponds to the HARQ process id of transport block 2. Through the first signaling, the initial transmission or blind retransmission of a plurality of transmission blocks can be respectively indicated, and the flexibility of resource configuration is improved.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first signaling is a downlink control signaling DCI format3_0, and the third field is a New data indicator field, and a combination of an index Configuration index field and/or a Padding field is configured. Specifically, the first signaling is a physical layer downlink control signaling DCI format3_0, the third field is a New data indicator field, and a combination of a Configuration index field and/or a Padding field is configured. The New data indicates that the New data indicator field occupies 1 bit of bits in the first signaling, and the Configuration index field occupies 0 bit or 3 bits of bits in the first signaling. Specifically, in the embodiment of the present application, a combination of a New data indicator field, a Configuration index field, and/or a Padding field is re-interpreted.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first signaling further includes a fourth field, where the fourth field is used to indicate an index of the partial Bandwidth part where the M transport blocks are located. For example, when one network device configures a plurality of active BWPs, the network device may be instructed by the first signaling to transmit data in which one or more BWPs. I.e. scheduling one or more BWPs of the network device by means of the first signaling.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first signaling is a downlink control signaling DCI format3_0, and the fourth field is a Resource pool index field. Specifically, the fourth field is a Resource pool index field. Specifically, in the embodiment of the present application, the Resource pool index field is re-interpreted. The number of bits occupied by the Resource pool index field in the first signaling is Log ₂ I, where I is configured by higher layer signaling, and originally refers to the total number of resource pools configured by the base station in BWP where the base station sends DCI format3_0, and I in this embodiment of the present application refers to the total number of partial bandwidth BWP preconfigured by the base station where the base station sends DCI format3_0 on a Carrier (Component Carrier).

With reference to the first aspect, in a possible implementation manner of the first aspect, the value of M is indicated by radio resource control signaling RRC.

With reference to the first aspect, in a possible implementation manner of the first aspect, the value of N is indicated by radio control signaling RRC.

In a second aspect, an embodiment of the present application provides a resource scheduling method, where the method is applied to an unlicensed frequency band, and includes:

the second communication device receives the first signaling from the first communication device;

the first field in the first signaling is used for indicating a time slot interval T between two adjacent transport blocks in M transport blocks TB in sidelink transmission, wherein the sidelink is used for communication between the second communication device and at least one third communication device, and T is greater than or equal to 0,M and is an integer greater than 1.

For example: m =3 is taken as an example, that is, the first signaling indicates equal slot intervals between transport block 0, transport block 1, and transport block 2. The slot interval T =3 between transport block 0 and transport block 1, and the slot interval T =3 between transport block 1 and transport block 2.

Wherein the value of M is carried by Radio Resource Control (RRC) signaling to configure the second communication device and/or the third communication device.

In the embodiment of the present application, a first communication device indicates data transmission of a plurality of transport blocks through one signaling (first signaling) to reduce transmission delay of a second communication device (terminal device).

With reference to the second aspect, in a possible implementation manner of the second aspect, the first domain includes: a first subfield and a second subfield; the first subfield is used for indicating a time slot interval T1 of two adjacent transmissions in N transmissions of the same transport block, wherein T1 is greater than or equal to 0,N and is an integer greater than 0; the second subfield is used to indicate a slot interval T between M transport blocks, where T is greater than or equal to 0.

With reference to the second aspect, in one possible implementation manner of the second aspect, the first subfield is invalid when N is equal to 1. Specifically, when the same transport block indicated by the first signaling is transmitted only 1 time, i.e., N =1, the first subzone is invalid. Since the first subfield is used to indicate the slot interval T1 of adjacent two transmissions of N transmissions of the same transport block, when the same transport block is transmitted only 1 time, T1 does not exist. I.e. the first sub-field is not active. It should be noted that the first sub-field invalidation may also be referred to as first sub-field retention (reserved). So as to reduce the change of the signaling and reduce the communication resource overhead.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first signaling is a downlink control signaling DCI format3_0, and the first field is a time resource allocation field allocated for time resources.

In the embodiment of the present application, the number of bits occupied by the first field in the first signaling is 5 or 9 bits. Specifically, in the embodiment of the present application, the time resource allocation field is re-interpreted. It should be noted that the first domain may also be another domain in the first signaling. The "domain" in the embodiments of the present application may also be referred to as a "field", i.e., "first domain" is equal to "first field".

With reference to the second aspect, in a possible implementation manner of the second aspect, the first signaling further includes a second field, and the second field is used to indicate a corresponding minimum hybrid automatic repeat request HARQ process identity in the M transport blocks. Illustratively, M =3 is taken as an example, and the transport blocks to be transmitted in the sidelink include transport block 0, transport block 1 and transport block 2. Suppose that the HARQ process id =0 for transport block 0, the HARQ process id =1 for transport block 1, and the HARQ process id =2 for transport block 2. In this implementation manner, the HARQ process identifier used by the second domain for indicating is HARQ process identifiers corresponding to the transport blocks other than the transport block corresponding to the minimum HARQ process identifier in 0,M, and sequentially increases progressively on the basis of the HARQ process identifier indicated by the second domain. Exemplarily, the HARQ process identifier corresponding to the transport block 1 is incremented on the basis of the HARQ process identifier indicated by the second domain (the HARQ process identifier corresponding to the transport block 0), that is, the HARQ process identifier corresponding to the transport block 1 is 1; the HARQ process identifier corresponding to the transport block 2 is incremented on the basis of the HARQ process identifier corresponding to the transport block 1, that is, the HARQ process identifier corresponding to the transport block 2 is 2.

With reference to the second aspect, in a possible implementation manner of the second aspect, HARQ process identifiers corresponding to the remaining transport blocks except for the transport block corresponding to the minimum HARQ process identifier in the M transport blocks are sequentially incremented on the basis of the HARQ process identifier indicated by the second domain.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first signaling is a downlink control signaling DCI format3_0, and the second field is a hybrid automatic repeat request process number HARQ process number field.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first signaling further includes a third field, where the third field is used to indicate initial transmission identifiers or retransmission identifiers of the M transport blocks, and each bit in the third field corresponds to one HARQ process identifier.

Optionally, each bit in the third field corresponds to one HARQ process identifier according to a progressive relationship. Illustratively, M =3 is taken as an example, and the transport blocks to be transmitted in the sidelink include transport block 0, transport block 1 and transport block 2. The first bit in the third field corresponds to the HARQ process id of transport block 0, the second bit corresponds to the HARQ process id of transport block 1, and the third bit corresponds to the HARQ process id of transport block 2. Through the first signaling, the initial transmission or blind retransmission of a plurality of transmission blocks can be respectively indicated, and the flexibility of resource configuration is improved.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first signaling is a downlink control signaling DCI format3_0, the third field is a New data indicator field, and a combination of an index Configuration index field and/or a Padding field is configured. Specifically, the first signaling is a physical layer downlink control signaling DCI format3_0, the third field is a New data indicator field, and a combination of a Configuration index field and/or a Padding field is configured. The New data indicates that the number of bits occupied by the New data indicator field in the first signaling is 1 bit, and the number of bits occupied by the Configuration index field in the first signaling is 0 bit or 3 bits. Specifically, in the embodiment of the present application, a combination of a New data indicator field, a Configuration index field, and/or a Padding field is re-interpreted.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first signaling further includes a fourth field, where the fourth field is used to indicate an index of the partial Bandwidth part where the M transport blocks are located. For example, when one network device configures a plurality of active BWPs, the network device may be instructed by the first signaling to transmit data in which one or more BWPs. I.e. scheduling one or more BWPs of the network device by the first signaling.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first signaling is a downlink control signaling DCI format3_0, and the fourth field is a Resource pool index field. Specifically, the fourth field is a Resource pool index field. Specifically, in the embodiment of the present application, the Resource pool index field is re-read. The number of bits occupied by the Resource pool index field in the first signaling is Log ₂ I, where I is configured by higher layer signaling, and originally refers to the total number of resource pools configured by the base station in BWP where the base station sends DCI format3_0, and I in this embodiment of the present application refers to the total number of partial bandwidth BWP preconfigured by the base station where the base station sends DCI format3_0 on a Carrier (Component Carrier).

With reference to the second aspect, in a possible implementation manner of the second aspect, the value of M is indicated by radio resource control signaling RRC.

With reference to the second aspect, in a possible implementation manner of the second aspect, the value of N is indicated by radio control signaling RRC.

In a third aspect, an embodiment of the present application provides a resource scheduling method, where the method is applied to an unlicensed frequency band, and includes:

the third communication device receives a second signaling from the first communication device, the second signaling is used for scheduling a first resource, the first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), at least one third communication device uses the first resource to send first data to the first communication device, the first data is data which is received by the at least one third communication device through the second resource and comes from the second communication device, and the second resource is a communication resource in a Physical Sidelink Shared Channel (PSSCH);

the third communication device receives a third signaling from the first communication device, wherein the third signaling is used for indicating an offset value of a first hybrid automatic repeat request (HARQ) process identifier and a second HARQ process identifier, the first HARQ process identifier is an HARQ process identifier corresponding to a second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to a first resource scheduled by the first signaling;

the third communication device transmits the first data to the first communication device according to the location of the first resource, which is confirmed according to the first resource and the offset value.

Specifically, the first communication device sends a second signaling to the third communication device, where the second signaling is used for scheduling the first resource. The first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), the first resource is used for at least one third communication apparatus to transmit first data to the first communication apparatus, the first data is data received by one or more third communication apparatuses from a second communication apparatus through a second resource, the second resource is a communication resource in a Physical layer sidelink Shared Channel (psch), and the third communication apparatus is a cooperative device of the second communication apparatus.

The first communication device broadcasts, i.e., transmits, the third signaling to the one or more third communication devices. And the third signaling is used for indicating an offset value between a first hybrid automatic repeat request HARQ process identifier and a second HARQ process identifier, wherein the first HARQ process identifier is a HARQ process identifier corresponding to the second resource, and the second HARQ process identifier is a HARQ process identifier corresponding to the first resource scheduled by the first signaling.

Specifically, the first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), and an HARQ Process identifier (that is, a second HARQ Process identifier) corresponding to the first resource is referred to as an HARQ Process ID (UL); the second resource is a communication resource in a Physical downlink shared channel (psch), and an HARQ process identifier (i.e., the first HARQ process identifier) corresponding to the second resource is referred to as an HARQ process ID (SL).

And after the first communication device broadcasts the third signaling, one or more third communication devices receive the third signaling, and the third communication devices determine the position of the first resource according to the deviation value carried by the third signaling. The location of the first resource refers to a time-frequency location of the first resource. Specifically, the first resource is determined according to the deviation value of the first HARQ process identifier and the second HARQ process identifier carried in the third signaling, and the first data received by the third communication device (from the second communication device) through the second resource. Namely, the second HARQ process identifier is determined according to the deviation value and the first HARQ process identifier.

In one possible implementation, the first resource comprises a communication resource used by a plurality of third communication devices. First, a different third communication device determines a part of the communication resources used by itself in the first resources, based on the third signaling. Next, each third communication device transmits the first data using the corresponding first resource.

In the embodiment of the application, by the above manner, the problem that the first communication device cannot determine which third communication devices (CUEs) are scheduled at the uplink scheduling time so as to avoid uplink resource waste caused by that part of CUEs do not correctly receive the first data can be solved.

With reference to the third aspect, in a possible implementation manner of the third aspect, the method further includes: the third communication device receives the first data; the third communication device demodulates the first data; when the third communication device correctly demodulates the first data, the third communication device transmits the first data to the first communication device.

After one or more third communication devices receive the first data from the second communication device, the third communication device demodulates the first data. If the third communication device correctly demodulates the first data, the third communication device may send the first data to the first communication device through the first resource. By the method, the problem that the first communication device cannot determine which third communication devices (CUEs) are scheduled at the uplink scheduling time so as to avoid uplink resource waste caused by the fact that part of CUEs do not correctly receive the first data can be solved.

With reference to the third aspect, in a possible implementation manner of the third aspect, the second signaling is a physical layer downlink control signaling DCI; the third signaling is physical layer downlink control signaling DCI. The implementation flexibility of the scheme is improved.

In a fourth aspect, an embodiment of the present application provides a resource scheduling method, including:

a first communication device sends a second signaling to a third communication device, the second signaling is used for scheduling first resources, the first resources are communication resources in a Physical Uplink Shared Channel (PUSCH), the first resources are used for sending first data to the first communication device by the third communication device, the first data are data received by the third communication device through the second resources, the first data are data received by at least one third communication device through the second resources from the second communication device, and the second resources are communication resources in a physical side-line shared channel (PSSCH);

and the first communication device broadcasts a third signaling, wherein the third signaling is used for indicating an offset value of a first hybrid automatic repeat request (HARQ) process identifier and a second HARQ process identifier, the first HARQ process identifier is an HARQ process identifier corresponding to a second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to the first resource scheduled by the first signaling.

Specifically, the first communication device sends a second signaling to the third communication device, where the second signaling is used for scheduling the first resource. The first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), the first resource is used for at least one third communication apparatus to send first data to the first communication apparatus, the first data is data received by one or more third communication apparatuses from a second communication apparatus through a second resource, the second resource is a communication resource in a Physical layer sidelink Shared Channel (psch), and the third communication apparatus is a cooperative device of the second communication apparatus.

With reference to the fourth aspect, in a possible implementation manner of the fourth aspect, the first communication apparatus receives first data at the first resource, and the first data is from the third communication apparatus. In this embodiment of the present application, the first communication device receives, at the first resource, first data from at least one third communication device, that is, the first data is data assisting a CUE in a communication scenario to upload.

With reference to the fourth aspect, in a possible implementation manner of the fourth aspect, the second signaling and the third signaling are downlink control signaling DCI. The realization flexibility of this scheme has been promoted.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, including:

the receiving and sending module is used for sending a first signaling to the second communication device;

the first field in the first signaling is used for indicating a time slot interval T between two adjacent transport blocks in M transport blocks TB in sidelink transmission, wherein the sidelink is used for communication between the second communication device and at least one third communication device, and T is greater than or equal to 0,M, which is an integer greater than 1.

In one implementation, the communication device is a network device, and the communication device may further include a transceiver.

In another implementation, the communication device is a chip, a system of chips, or a circuit configured in a network device, and may further include a transceiver module, where the transceiver module may be an input and/or output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit on the chip, the system of chips, or the circuit.

In one possible implementation of the method according to the invention,

the transceiver module is further used for sending a second signaling to the third communication device,

the second signaling is used for scheduling a first resource, the first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), the first resource is used for at least one third communication device to send first data to the first communication device, the first data is data received by the at least one third communication device through a second resource, and the second resource is a communication resource in a Physical Sidelink Shared Channel (PSSCH);

the transceiving module is further configured to broadcast a third signaling, where the third signaling is used to indicate an offset value between a first HARQ process identifier and a second HARQ process identifier, where the first HARQ process identifier is an HARQ process identifier corresponding to a second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to a first resource scheduled by the first signaling.

In one possible implementation form of the method,

the transceiver module is further configured to receive first data from at least one third communication device at the first resource.

In a possible implementation manner, the second signaling is a physical layer downlink control signaling DCI; the third signaling is physical layer downlink control signaling DCI.

In one possible implementation, the first domain includes: a first subfield and a second subfield; the first subfield is used for indicating a time slot interval T1 of two adjacent transmissions in N transmissions of the same transport block, wherein T1 is greater than or equal to 0,N and is an integer greater than 0; the second subfield is used to indicate a slot interval T between M transport blocks, where T is greater than or equal to 0.

In one possible implementation, the first sub-field is not active when N equals 1.

In a possible implementation manner, the first signaling is a downlink control signaling DCI format3_0, and the first field is a time resource allocation field.

In a possible implementation manner, the first signaling further includes a second field, and the second field is used for indicating a corresponding minimum hybrid automatic repeat request HARQ process identity in the M transport blocks.

In a possible implementation manner, HARQ process identifiers corresponding to the remaining transport blocks except the transport block corresponding to the minimum HARQ process identifier in the M transport blocks are sequentially incremented on the basis of the HARQ process identifier indicated by the second domain.

In a possible implementation manner, the first signaling is downlink control signaling DCI format3_0, and the second field is a hybrid automatic repeat request process number field.

In a possible implementation manner, the first signaling further includes a third field, where the third field is used to indicate initial transmission identifiers or retransmission identifiers of the M transport blocks, and each bit in the third field corresponds to one HARQ process identifier.

In a possible implementation manner, the first signaling is downlink control signaling DCI format3_0, and the third field is a new data indication field, and a combination of an index field and/or a padding field is configured.

In a possible implementation manner, the first signaling further includes a fourth field, where the fourth field is used to indicate an index of a partial bandwidth where the M transport blocks are located.

In a possible implementation manner, the first signaling is a downlink control signaling DCI format3_0, and the fourth field is a resource pool index field.

In one possible implementation, the value of M is indicated by radio resource control signaling RRC.

In one possible implementation, the value of N is indicated by radio control signaling RRC.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, including:

a transceiver module for receiving a first signaling from a first communication device;

In one implementation, the communication device is a terminal device, and the communication device may further include a transceiver.

In another implementation, the communication device is a chip, a system of chips, or a circuit configured in the terminal equipment, and may further include a transceiver module, where the transceiver module may be an input and/or output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit on the chip, the system of chips, or the circuit.

In a possible implementation manner, the first signaling is a downlink control signaling DCI format3_0, and the second field is a hybrid automatic repeat request process number field.

In a possible implementation manner, the first signaling further includes a fourth field, and the fourth field is used for indicating an index of a partial bandwidth where the M transport blocks are located.

In a seventh aspect, an embodiment of the present application provides a communication apparatus, including:

a transceiver module, configured to receive a second signaling from a first communication apparatus, where the second signaling is used to schedule a first resource, the first resource is a communication resource in a physical uplink shared channel, PUSCH, and at least one third communication apparatus sends first data to the first communication apparatus using the first resource, where the first data is data from the second communication apparatus and received by the at least one third communication apparatus through the second resource, and the second resource is a communication resource in a physical sidelink shared channel, psch;

the transceiver module is further configured to receive a third signaling from the first communication device, where the third signaling is used to indicate an offset value between a first HARQ process identifier and a second HARQ process identifier, where the first HARQ process identifier is a HARQ process identifier corresponding to a second resource, and the second HARQ process identifier is a HARQ process identifier corresponding to a first resource scheduled by the first signaling;

the processing module is used for determining the position of the first resource according to the deviation value;

and the transceiver module is further configured to send first data to the first communication device according to the location of the first resource, and the location of the first resource is confirmed according to the first resource and the offset value.

In one implementation, the communication device is a terminal device, and the processing module may be a processor. Optionally, the communication device may further comprise a transceiver.

In another implementation, the communication device is a chip, a system of chips, or a circuit configured in the terminal equipment. A processing module may be a processor, a processing circuit, a logic circuit, or the like. Optionally, the communication device may further include a transceiver module, which may be an input and/or output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit on the chip, the system of chips or circuits.

In one possible implementation form of the method,

the receiving and sending module is also used for receiving first data;

the processing module is also used for demodulating the first data;

and the transceiver module is further used for sending the first data to the first communication device when the third communication device correctly demodulates the first data.

In an eighth aspect, an embodiment of the present application provides a communication apparatus, including:

a transceiver module, configured to send a second signaling to a third communications apparatus, where the second signaling is used to schedule a first resource, the first resource is a communication resource in a physical uplink shared channel PUSCH, the first resource is used for the third communications apparatus to send first data to the first communications apparatus, the first data is data received by the third communications apparatus through the second resource, the first data is data received by at least one third communications apparatus through the second resource from the second communications apparatus, and the second resource is a communication resource in a physical sidelink shared channel PSSCH;

In one implementation, the communication device is a network device, and the communication device may include a transceiver.

In another implementation, the communication device is a chip, a system of chips, or a circuit configured in a network device. The communication device further comprises a transceiver module, which may be an input and/or output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit, etc. on the chip, the system of chips or circuits.

In a possible implementation manner, the transceiver module is further configured to receive first data at the first resource, where the first data is from a third communication device.

In a possible implementation manner, the second signaling and the third signaling are downlink control signaling DCI.

In a ninth aspect, the present application provides a communication apparatus, which can implement the functions performed by the communication apparatus in the method according to the first, second, third or fourth aspect. The communication device comprises a processor, a memory, a receiver connected with the processor and a transmitter connected with the processor; the memory is used for storing program codes and transmitting the program codes to the processor; the processor is configured to drive the receiver and the transmitter according to instructions in the program code to perform the method according to the first, second, third, or fourth aspect; the receiver and the transmitter are respectively connected with the processor to execute the operation of the communication device in the method of the above aspects. Specifically, the transmitter may perform an operation of transmitting, and the receiver may perform an operation of receiving. Optionally, the receiver and the transmitter may be radio frequency circuits, and the radio frequency circuits implement receiving and sending messages through antennas; the receiver and the transmitter may also be a communication interface, to which a processor is connected via a bus, through which the processor effects the reception or transmission of messages.

In a tenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may include an entity such as a network device or a chip, and the communication apparatus includes: a processor, a memory; the memory is used for storing instructions; the processor is configured to execute the instructions in the memory to cause the communication device to perform the method of any of the preceding first, second, third or fourth aspects.

In an eleventh aspect, embodiments of the present application provide a computer-readable storage medium storing one or more computer-executable instructions, which, when executed by a processor, perform any one of the possible implementations of the first, second, third, or fourth aspects as described above.

In a twelfth aspect, embodiments of the present application provide a computer program product (or computer program) storing one or more computer-executable instructions, where when the computer-executable instructions are executed by the processor, the processor executes any one of the foregoing implementation manners of the first aspect, the second aspect, the third aspect, or the fourth aspect.

In a thirteenth aspect, there is provided a communication device (which may be a chip or a system of chips, for example) comprising a processor for implementing the functionality referred to in any of the above aspects. In one possible design, the communication device further includes a memory for storing necessary program instructions and data. When the communication device is a chip system, it may be constituted by a chip, or may include a chip and other discrete devices.

In a fourteenth aspect, there is provided a chip comprising a processor and a communication interface for communicating with modules other than the chip shown, the processor being configured to execute a computer program or instructions such that an apparatus in which the chip is installed may perform the method of any of the above aspects.

For technical effects brought by any one of the design manners in the third aspect to the fourteenth aspect, reference may be made to technical effects brought by different design manners in the first aspect, the second aspect, the third aspect, or the fourth aspect, and details are not repeated herein.

In a fifteenth aspect, a communication system is provided, which includes the communication device of the above aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system to which a method for transmitting sidelink resources according to an embodiment of the present application is applied;

fig. 2 is a schematic hardware structure diagram of a communication device in an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating a communication mode of a dynamic scheduling mode in an embodiment of the present application;

fig. 4 is a schematic diagram of a cooperative communication flow involved in the embodiments of the present application;

fig. 5 is a flowchart illustrating a resource scheduling method according to an embodiment of the present application;

fig. 6 is a flowchart illustrating a resource scheduling method according to an embodiment of the present application;

fig. 7 is a schematic diagram of a timeslot interval involved in an embodiment of the present application;

fig. 8 is a schematic diagram of a timeslot interval involved in an embodiment of the present application;

fig. 9 is a schematic diagram of a timeslot interval involved in an embodiment of the present application;

fig. 10 is a schematic diagram of a slot interval involved in an embodiment of the present application;

fig. 11 is a schematic diagram of a timeslot interval involved in an embodiment of the present application;

fig. 12 is a schematic diagram of a slot interval involved in an embodiment of the present application;

fig. 13 is a schematic diagram of a timeslot interval involved in an embodiment of the present application;

fig. 14 is a schematic diagram of a timeslot interval involved in the embodiment of the present application;

fig. 15 is a schematic view of communication resources involved in an embodiment of the present application;

fig. 16 is a schematic diagram of HARQ process identification in an embodiment of the present application;

fig. 17 is a schematic diagram of an embodiment of a communication device in the embodiment of the present application;

fig. 18 is a schematic diagram of an embodiment of a communication device in the embodiment of the present application;

fig. 19 is a schematic diagram of an embodiment of a communication device in the embodiment of the present application;

fig. 20 is a schematic diagram of an embodiment of a communication device in the embodiment of the present application.

Detailed Description

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the various embodiments of the application and how objects of the same nature can be distinguished. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. In the description of this application, "/" indicates an OR meaning, for example, A/B may indicate A or B; in the present application, "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the present application, "at least one item" means one or more items, and "a plurality of items" means two or more items. "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.

First, some application scenarios of the present solution are introduced. As shown in fig. 1, fig. 1 shows a communication system to which a method for transmitting uplink resources provided in an embodiment of the present application is applied, where the communication system includes: one or more network devices (such as network device 10 shown in fig. 1), one or more terminals (such as first terminal 11, second terminal 12, third terminal 13 shown in fig. 1).

Wherein, the first terminal 11 communicates with the network device 10, and the first terminal 11 communicates with the second terminal 12, and the second terminal 12 communicates with the third terminal 13. Of course, the second terminal 12 and the third terminal 13 may also communicate with the network device 10.

It should be noted that the communication system shown in fig. 1 may further include: a core network. Network device 10 may be connected to the core network. The core network may be a 4G core network (e.g., evolved Packet Core (EPC)) or a 5G core network (5G core, 5gc), or a core network in various future communication systems, and a Road Side Unit (RSU). The RSU may also provide various service information and data network access for each terminal in the system, for example, taking a terminal as a vehicle, for example, the RSU may also provide functions such as no-parking charging, in-vehicle entertainment and the like for each terminal in the system, which greatly improves traffic intelligence.

Taking the core network may be a 4G core network as an example, the network device 10 may be an evolved Node B (eNB) or eNodeB in a 4G system. The first terminal 11 is a terminal capable of information transmission with the eNB. The eNB accesses the EPC network through an S1 interface.

Taking a core network which may be a 5G core network as an example, the network device 10 may be the next generation node B (gNB) in the NR system, and the first terminal 11 may be a terminal capable of performing information transmission with the gNB. The gNB accesses the 5GC through the NG interface.

Of course, the network device 10 may also be a third generation partnership project (3 rd generation partnership project,3 GPP) protocol base station or may be a non-3 GPP protocol base station.

The transmission link between the network device 10 and the first terminal 11 may be a user to network interface-universal (Uu) link. The transmission link between the first terminal 11 and the second terminal 12 may be a side link. The Uu link is used for transporting Uu traffic (information or data) sent by the network device 10 to the first terminal 11.

The first terminal 11 and the second terminal 12 may transmit Vehicle to electronic (V2X) traffic to each other on a side link. The first terminal 11 may transmit Uplink (UL) Uu traffic to the network device 10 on the Uu link, and may also receive Downlink (DL) Uu traffic sent by the network device 10 on the Uu link.

The interface through which the first terminal 11 and the second terminal 12 directly communicate may be the interface 1. For example, interface 1 may be referred to as a PC5 interface, and may use a car networking dedicated frequency band (e.g., 5.9 GHz). The interface between the first terminal 11 and the network device 10 may be referred to as interface 2 (e.g., uu interface), and employs a cellular frequency band (e.g., 1.8 GHz). The PC5 interface is generally used in a V2X or D2D scenario where direct communication between devices is possible. The names of the interface 1 and the interface 2 are merely examples, and the names of the interface 1 and the interface 2 are not limited in the embodiments of the present application.

Specifically, fig. 1 depicts a cooperative communication scenario in which the first terminal 11 serves as a Source User Equipment (SUE), and the second terminal 12 and the third terminal 13 serve as Cooperative User Equipment (CUE). Wherein, in stage 1, the data packet from the SUE is distributed to the CUE through the sidelink; and in the stage 2, the CUE and the SUE are cooperatively transmitted.

In the embodiment of the present application, it is understood that the network device 10 is referred to as a first communication apparatus; the first terminal 11 is referred to as a second communication device, and the second terminal 12 and/or the third terminal 13 are collectively referred to as a third communication device.

In this embodiment, the second communication device and the third communication device are terminal devices, or chip systems in the terminal devices, or chip systems integrated with functions of the terminal devices, or chips or circuits configured in the terminal devices, or chips or circuits integrated with functions of the terminal devices, and the like. The terminal device may also be referred to as a User Equipment (UE), herein. The terminal device in the embodiments of the present application, as a device having a wireless transceiving function, may communicate with one or more Core Networks (CNs) through a network device. A terminal device can also be called an access terminal, subscriber unit, subscriber station, mobile, remote station, remote terminal, mobile device, user terminal, wireless network device, user agent, or user equipment, etc. The terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a cellular phone (cellular phone), a cordless phone, a Session Initiation Protocol (SIP) phone, a smart phone (smart phone), a mobile phone (mobile phone), a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other device connected to a wireless modem, a vehicle device, a wearable device, a drone device or internet of things, a terminal in a vehicle networking, a terminal in a fifth generation mobile communication (5G) network and any form of terminal in a future network, a relay user device or a terminal in a future evolved public land mobile communication network (PLMN), and the like, wherein the relay user device may be a 5G home gateway (RG). For example, the terminal device may be a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), or the like. The embodiments of the present application do not limit this.

The first communication device is a network device, a system-on-chip in the network device, or a system-on-chip integrated with a function of the network device, or a chip or a circuit configured in the network device, or a chip or a circuit integrated with a function of the network device. The network device may be regarded as a sub-network of the operator network, and is an implementation system between the service node and the terminal device in the operator network. The terminal device is to be connected to the operator network, first through the network device, and then through the network device to be connected to the service node of the operator network. The network device in the embodiment of the present application is a device that provides a wireless communication function for a terminal device, and may also be referred to as a (radio) access network (R) AN). Network devices include, but are not limited to: next generation base station node (eNB) in 5G system, evolved node B (eNB) in Long Term Evolution (LTE), radio Network Controller (RNC), node B (NB), base Station Controller (BSC), base Transceiver Station (BTS), home base station (e.g., home evolved node B or home node B, HNB), base Band Unit (BBU), transmission point (TRP), transmission point (transfitting and receiving point), small base station device (pico), mobile switching center, or network device in future network. In systems using different radio access technologies, the names of devices that function as access network devices may vary.

The resource scheduling method provided by the present application may be applied to various communication systems, for example, the resource scheduling method may be an internet of things (IoT), a narrowband band internet of things (NB-IoT), a Long Term Evolution (LTE), a fifth generation (5G) communication system, a hybrid architecture of LTE and 5G, a 5G New Radio (NR) system, a new communication system appearing in future communication development, and the like. The 5G communication system of the present application may include at least one of a non-standalone (NSA) 5G communication system and a Standalone (SA) 5G communication system. The communication system may also be a Public Land Mobile Network (PLMN) network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, or other networks.

In addition, the embodiment of the application can also be applied to other communication technologies facing the future, such as 6G. The network architecture and the service scenario described in this application are for more clearly illustrating the technical solution of this application, and do not constitute a limitation to the technical solution provided in this application, and it can be known by those skilled in the art that the technical solution provided in this application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of new service scenarios.

Fig. 2 is a schematic diagram of a hardware structure of a communication device in the embodiment of the present application. The communication device may be one possible implementation manner of the first communication device, the second communication device or the third communication device in the embodiment of the present application. As shown in fig. 2, the communication device includes at least a processor 204, a memory 203, and a transceiver 202, the memory 203 further for storing instructions 2031 and data 2032. Optionally, the communication device may also include an antenna 206, an I/O (Input/Output) interface 210, and a bus 212. The transceiver 202 further includes a transmitter 2021 and a receiver 2022. Further, the processor 204, the transceiver 202, the memory 203 and the I/O interface 210 are communicatively coupled to each other via a bus 212, and the antenna 206 is coupled to the transceiver 202.

The Processor 204 may be a general-purpose Processor, such as but not limited to a Central Processing Unit (CPU), or a special-purpose Processor, such as but not limited to a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), and so on. The processor 204 may also be a Neural Processing Unit (NPU). Further, the processor 204 may also be a combination of multiple processors. In particular, in the technical solution provided in this embodiment of the present application, the processor 204 may be configured to execute relevant steps of a method for generating a key identifier in a subsequent method embodiment. The processor 204 may be a processor specially designed for performing the above steps and/or operations, or may be a processor that performs the above steps and/or operations by reading and executing the instructions 2031 stored in the memory 203, and the processor 204 may use the data 2032 in the process of performing the above steps and/or operations.

The transceiver 202 includes a transmitter 2021 and a receiver 2022, and in an alternative implementation, the transmitter 2021 is configured to transmit signals via the antenna 206. Receiver 2022 is configured to receive signals via at least one of antennas 206. In particular, in the technical solution provided in this embodiment, the transmitter 2021 may be specifically configured to be executed by at least one antenna among the antennas 206, for example, when the resource scheduling method is applied to the first communication apparatus, the second communication apparatus, or the third communication apparatus in the subsequent method embodiment, the operation is executed by a receiving module or a sending module in the first communication apparatus, the second communication apparatus, or the third communication apparatus.

In the present embodiment, the transceiver 202 is used to support the communication device to perform the aforementioned receiving function and transmitting function. A processor having a processing function is considered as the processor 204. The receiver 2022 may also be referred to as an input port, a receiving circuit, or the like, and the transmitter 2021 may be referred to as a transmitter or a transmitting circuit, or the like.

The processor 204 is operable to execute the instructions stored in the memory 203 to control the transceiver 202 to receive messages and/or transmit messages to perform the functions of the communication device in the method embodiments of the present application. As an implementation, the function of the transceiver 202 may be realized by a transceiver circuit or a dedicated chip for transceiving. In the present embodiment, the transceiver 202 receiving a message may be understood as the transceiver 202 inputting a message, and the transceiver 202 sending a message may be understood as the transceiver 202 outputting a message.

The Memory 203 may be various types of storage media, such as Random Access Memory (RAM), read Only Memory (ROM), non-Volatile RAM (NVRAM), programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), flash Memory, optical Memory, and registers. The memory 203 is specifically configured to store instructions 2031 and data 2032, and the processor 204 may execute the steps and/or operations described in the method embodiment of the present application by reading and executing the instructions 2031 stored in the memory 203, and may use the data 2032 in the process of executing the operations and/or steps in the method embodiment of the present application.

Optionally, the communication apparatus may further comprise an I/O interface 210, the I/O interface 210 being configured to receive instructions and/or data from a peripheral device and to output instructions and/or data to the peripheral device.

The method portion of the embodiments of the present application is described below, first describing some concepts involved in the embodiments of the present application:

(1) Side Link (SL):

the sidelink technology refers to a technology that allows direct interaction between a terminal device and a terminal device, for example, a common application scenario of a sidelink in an internet of vehicles, vehicle to other device (V2X) communication is an important key technology for implementing environment awareness and information interaction in the internet of vehicles, where the other device may be other vehicles, infrastructure, mobile terminal device, and the like. V2X communication can be regarded as an application scenario of device to device (D2D) communication. For example, the vehicles are directly communicated with each other, and the driving state information and the road condition between the vehicles are interactively acquired in real time, so that the driving of the vehicles is better assisted, and even the automatic driving is realized.

It should be noted that the sidelink may also be widely applied to other communication technologies or scenarios, such as: long term evolution technology-vehicle communication (LTE-V), IOT gateway scenarios, industrial control, time-frequency monitoring and analysis, VR panorama, etc., without limitation herein.

In V2X communication, when resource transmission is performed through a sidelink, two modes may be included:

the first Mode (Mode 1) is a resource scheduling Mode based on scheduling of a network device (e.g., a base station), and a terminal device (e.g., a vehicle or other mobile device) in V2X transmits a sidelink communication signal on a scheduled time-frequency resource according to scheduling information of the network device. The first communication mode can also be divided into two scheduling modes, one of which is called a dynamic scheduling (dynamic grant) mode. For ease of understanding, please refer to fig. 3, in which fig. 3 is a schematic diagram illustrating a communication mode of a dynamic scheduling mode according to an embodiment of the present application. The network device sends a Downlink Control Information (DCI) through the PDCCH to instruct the terminal device to perform frequency domain and time domain resources for sidelink transmission, for example: the downlink control signaling adopts DCI format 3_0. The dynamic scheduling mode supports scheduling one transport block at a time, and transmission of the transport block may be composed of initial transmission and several blind retransmissions (blid retransmission), where the initial transmission refers to first transmission (transport block), and the blind retransmission refers to retransmission performed by the network device before demodulation feedback of the initial transmission is not obtained. The number of blind retransmissions is indicated by higher layer signaling, for example: higher layer signaling "sl-MaxNumPerReserve" indicates. An optional value (also referred to as a signaling size) of a high-layer signaling "sl-MaxNumPerReserve" is {2,3}, where a value of 2 indicates that 1 initial transmission and 1 blind retransmission are indicated, and a value of 3 indicates that 1 initial transmission and 2 blind retransmissions are indicated. Another scheduling method is called a pre-configured (configured scheduling) method, where the network device semi-statically configures, through RRC signaling, frequency domain and time domain resources for sidelink transmission periodically, and the semi-statically configured resource scheduling method has the advantage of saving signaling overhead and is suitable for a communication scenario of periodic services, and like the dynamic scheduling method, the pre-configured resource scheduling method also only supports scheduling one transport block at a time.

In a dynamic scheduling mode in the first mode, in DCI format3_0, a Time domain position of sidelink transmission is indicated by a Time resource allocation (Time resource allocation) field therein, a bit number occupied by the field in DCI is related to a size of a high layer signaling "sl-MaxNumPerReserve", and when a value of the high layer signaling "sl-MaxNumPerReserve" is 2, the size of the Time resource allocation field is 5 bits (bits); when the value of the high-layer signaling 'sl-MaxMumPerReserve' is 3, the Time resource assignment field occupies 9 bits.

In the first mode, time domain resources occupied by the initial transmission and the blind retransmission in the dynamic scheduling mode are scheduled according to a time slot unit, a time slot interval before the initial transmission and the blind retransmission supports flexible configuration, and if N = sl-MaxMxNumReserve, the time slot interval between the initial transmission and the first blind retransmission is t ₁ The time slot interval between the second blind retransmission and the first blind retransmission is t ₂ The value carried by the Time resource assignment field is denoted "TRIV", t ₁ And t ₂ The acquisition mode of (1) is shown by the following pseudo code:

the second Mode (Mode 2) is a resource scheduling Mode in which the V2X terminal device autonomously selects time-frequency resources required for V2X communication in a V2X communication resource pool pre-configured by the network device or the protocol. For example, the V2X end user equipment may select the unoccupied time-frequency domain resource based on the principle of collision avoidance by decoding Sidelink Control Information (SCI) of other user equipment or obtaining the condition that the resource pool is occupied by other user equipment resources according to measuring sidelink signal energy. The second communication mode may be applied in scenarios with no or partial network coverage.

In a V2X communication system, a physical side line control channel (PSCCH) is used for transmitting control information in V2X communication, and a physical side line shared channel (PSCCH) is used for transmitting data information in V2X communication.

(2) And cooperative communication of a plurality of terminal devices:

referring to fig. 4, fig. 4 is a schematic view illustrating a cooperative communication flow according to an embodiment of the present application. Some terminal devices are far away from the network device and limited in transmission power, and cannot normally communicate with the network device. The terminal device closer to the network device may assist the terminal device farther from the network device to perform relay transmission, and the above process is referred to as cooperative communication of multiple terminal devices. The network device configures the sidelink resource through a downlink control signaling format3 (DCI format 3_0) to perform data transmission of one Transport Block (TB). After receiving a Hybrid Automatic Repeat request-acknowledgement (HARQ-ACK), the network device sends an uplink resource scheduling signaling to the terminal device (including one SUE and one or more CUEs), and instructs the terminal device and the ue to cooperatively send data of the transport block to the network device. The current downlink control signaling DCI format3_0 only supports scheduling of sidelink data transmission of one TB, and the above process is repeated many times under the condition of large uplink data transmission amount, thereby increasing the time delay of the UE cooperative communication process; especially in the unlicensed frequency band, the SUE performs Listen Before Talk (LBT) Before transmitting the sidelink signal, and if LBT fails, the sidelink resource scheduled by the network device is not available, and the time delay of transmission of cooperative communication of the terminal device is further increased. In a scenario of cooperative communication of multiple terminal devices, multiple signaling needs to be configured, which results in a technical drawback of large time delay.

The embodiment of the application provides a resource scheduling method, in which a first communication device sends a first signaling to a second communication device, the first signaling is used for indicating a time slot interval between two adjacent transmission blocks among a plurality of transmission blocks scheduled at a time in sidelink transmission, and the sidelink transmission refers to communication between the second communication device and a third communication device cooperating with the second communication device. And indicating the data transmission of a plurality of TBs through one signaling so as to reduce the sending times of the downlink control signaling of the first communication device and reduce the time delay of the whole cooperative transmission.

Specifically, please refer to fig. 5, wherein fig. 5 is a flowchart illustrating a resource scheduling method according to an embodiment of the present application. The resource scheduling method provided by the embodiment of the application comprises the following steps:

501. the first communication device sends a first signaling to the second communication device, wherein a first field (field) in the first signaling is used for indicating a time slot interval T between two adjacent transmission blocks in M transmission blocks TB in sidelink transmission, and M is an integer larger than 1.

Illustratively, the first signaling includes in addition to the first domain. The first signaling may further include one or more of a second domain, a third domain, and a fourth domain, each of which is described below. It is to be understood that only the first domain may be included in the first signaling.

A first domain:

the method comprises the steps that a first communication device sends a first signaling to a second communication device, wherein a first field in the first signaling is used for indicating a time slot interval T between two adjacent transmission blocks in M transmission blocks TB in sidelink transmission, the sidelink is used for communication between the second communication device and at least one third communication device, T is greater than or equal to 0,M and is an integer greater than 1, and the third communication device is a cooperative device of the second communication device.

Illustratively, the slot interval between two adjacent transport blocks among the M transport blocks is the same, for example: m =3 is an example, i.e. the first signaling indicates equal slot intervals between transport block 0, transport block 1 and transport block 2. The slot interval T =3 between transport block 0 and transport block 1, and the slot interval T =3 between transport block 1 and transport block 2.

In a possible implementation manner, the first signaling is physical layer downlink control signaling DCI. In the embodiment of the present application, the first signaling is DCI format3_0 for description, it is understood that the first signaling may be new DCI obtained after the current DCI format3_0 is re-interpreted, and the first signaling may also be newly designed DCI, which is not limited herein.

Specifically, the selection range of T can be varied, and for the convenience of understanding, the following description is provided with reference to the accompanying drawings.

(A) T refers to a time slot interval between an end time of a previous transport block and a start time of a next transport block, where the previous transport block and the next transport block are different transport blocks, for example: transport block 0 and transport block 1. It should be noted that "different" here may be understood as different data before encoding carried by the transport block. Referring to fig. 7, fig. 7 is a schematic diagram of a timeslot interval according to an embodiment of the present application. Taking DCI format3_0 as the first signaling as an example, the first signaling indicates a slot interval between two adjacent transport blocks among 3 transport blocks, that is, transport block 0, transport block 1, and transport block 2. T refers to the slot interval between the end time of transport block 0 and the start time of transport block 1.

(B) T refers to a time slot interval between a start time of a previous transport block and a start time of a next transport block, where the previous transport block and the next transport block are different transport blocks, for example: transport block 0 and transport block 1. It should be noted that "different" here may be understood as different data before encoding carried by the transport block. Referring to fig. 8, fig. 8 is a schematic diagram of a timeslot interval according to an embodiment of the present application. Taking DCI format3_0 as the first signaling as an example, the first signaling indicates a slot interval between two adjacent transport blocks among 3 transport blocks, that is, transport block 0, transport block 1, and transport block 2. T refers to the slot interval between the start time of transport block 0 and the start time of transport block 1.

(C) T refers to a time slot interval between a start time of a previous transport block and an end time of a next transport block, where the previous transport block and the next transport block are different transport blocks, for example: transport block 0 and transport block 1. Referring to fig. 9, fig. 9 is a schematic diagram of a timeslot interval according to an embodiment of the present application. Taking the first signaling as DCI format3_0 as an example, the first signaling indicates a slot interval between two adjacent transport blocks among 3 transport blocks, that is, transport block 0, transport block 1, and transport block 2. T refers to the slot interval between the start time of transport block 0 and the end time of transport block 1.

(D) T refers to a time slot interval between an end time of a previous transport block and an end time of a next transport block, where the previous transport block and the next transport block are different transport blocks, for example: transport block 0 and transport block 1. Referring to fig. 10, fig. 10 is a schematic diagram of a timeslot interval according to an embodiment of the present application. Taking the first signaling as DCI format3_0 as an example, the first signaling indicates a slot interval between two adjacent transport blocks among 3 transport blocks, that is, transport block 0, transport block 1, and transport block 2. T refers to the slot interval between the end time of the transport block 0 and the end time of the transport block 1.

In an alternative implementation, the first domain includes: a first subfield and a second subfield;

the first subfield is used for indicating a time slot interval T1 of two adjacent transmissions in N transmissions of the same transport block, wherein T1 is greater than or equal to 0,N and is an integer greater than 0; the second subfield is used to indicate a slot interval T between M transport blocks, where T is greater than or equal to 0.

The first signaling can support scheduling one transmission block and also can support scheduling a plurality of transmission blocks, thereby improving the use flexibility.

In an alternative implementation, the M and/or N values are configured to the second communication device and/or the third communication device by Radio Resource Control (RRC) signaling.

Specifically, the selection range of T and the selection range of T1 may be various, and for convenience of understanding, the following description is provided with reference to the accompanying drawings. It should be noted that, the selection range of T and the selection range of T1, which are exemplarily illustrated in the following drawings, may be combined with each other, and are not limited herein.

(AA), T refers to a time slot interval between an ending time of a previous transport block and a starting time of a next transport block, where the previous transport block and the next transport block are different transport blocks, for example: transport block 0 and transport block 1. T1 refers to the time slot interval between the end time of the previous transmission and the start time of the next transmission of the same transport block in N transmissions. Referring to fig. 11, fig. 11 is a schematic diagram of a timeslot interval according to an embodiment of the present application. Taking DCI format3_0 as the first signaling as an example, the first signaling indicates a slot interval between two adjacent transport blocks between the two transport blocks, i.e., transport block 0 and transport block 1. T refers to the slot interval between the end time of transport block 0 and the start time of transport block 1. T1 refers to the slot interval of two adjacent transmissions in N transmissions of the same transport block (for example, transport block 0), for example: a slot interval between an end time of an nth transmission of the transport block 0 and a start time of an n +1 th transmission of the transport block 0, where n is an integer greater than or equal to 1.

(BB), T refers to a time slot interval between a starting time of a previous transport block and a starting time of a next transport block, where the previous transport block and the next transport block are different transport blocks, for example: transport block 0 and transport block 1. T1 refers to the time slot interval between the starting time of the previous transmission and the starting time of the next transmission of the same transport block in N transmissions. Referring to fig. 12, fig. 12 is a schematic diagram of a slot interval according to an embodiment of the present application. Taking DCI format3_0 as the first signaling as an example, the first signaling indicates a slot interval between two adjacent transport blocks between the two transport blocks, i.e., transport block 0 and transport block 1. T refers to the slot interval between the start time of transport block 0 and the start time of transport block 1. T1 refers to the slot interval of two adjacent transmissions in N transmissions of the same transport block (for example, transport block 0), for example: a slot interval between a start time of an nth transmission of the transport block 0 and a start time of an n +1 th transmission of the transport block 0, where n is an integer greater than or equal to 1.

(CC), T refers to a time slot interval between a start time of a previous transport block and an end time of a next transport block, where the previous transport block and the next transport block are different transport blocks, for example: transport block 0 and transport block 1. T1 refers to a time slot interval between the start time of the previous transmission and the end time of the next transmission of the same transport block in N transmissions. Referring to fig. 13, fig. 13 is a schematic diagram of a timeslot interval according to an embodiment of the present application. Taking DCI format3_0 as the first signaling as an example, the first signaling indicates a slot interval between two adjacent transport blocks between the two transport blocks, i.e., transport block 0 and transport block 1. T refers to the slot interval between the start time of transport block 0 and the end time of transport block 1. T1 refers to the slot interval of two adjacent transmissions in N transmissions of the same transport block (for example, transport block 0), for example: a time slot interval between a start time of an nth transmission of the transport block 0 and an end time of an n +1 th transmission of the transport block 0, where n is an integer greater than or equal to 1.

(DD), T refer to a time slot interval between the end time of the previous transport block and the end time of the next transport block, which are different transport blocks, for example: transport block 0 and transport block 1. T1 refers to the time slot interval between the end time of the previous transmission and the end time of the next transmission of the same transport block in N transmissions. Referring to fig. 14, fig. 14 is a schematic diagram of a timeslot interval according to an embodiment of the present application. Taking DCI format3_0 as the first signaling as an example, the first signaling indicates a slot interval between two adjacent transport blocks between the two transport blocks, i.e., transport block 0 and transport block 1. T refers to the slot interval between the end time of the transport block 0 and the end time of the transport block 1. T1 refers to a time slot interval between two adjacent transmissions in N transmissions of the same transport block (taking transport block 0 as an example), for example: the time slot interval between the end time of the nth transmission of the transport block 0 and the end time of the (n + 1) th transmission of the transport block 0, where n is an integer greater than or equal to 1.

In one possible implementation, the first subzone is invalid when the same transport block of the first signaling indication is transmitted only 1 time, i.e. N = 1. Since the first subfield is used to indicate a slot interval T1 of adjacent two transmissions among N transmissions of the same transport block, when the same transport block is transmitted only 1 time, T1 does not exist. I.e. the first sub-field is not active. It should be noted that the first sub-field invalidation may also be referred to as first sub-field retention (reserved).

In a possible implementation manner, the first field allocates a time resource assignment field for the time resource, and the number of bits occupied by the first field in the first signaling is 5 or 9 bits. Specifically, in the embodiment of the present application, the time resource allocation field is re-interpreted. It should be noted that the first field may also be other fields in the first signaling. The "domain" in the embodiments of the present application may also be referred to as a "field", i.e., "first domain" is equal to "first field".

A second domain:

in a possible implementation manner, the first signaling further includes a second field, and the second field is used for indicating a corresponding minimum hybrid automatic repeat request HARQ process identifier in the M transport blocks. Illustratively, M =3 is taken as an example, and the transport blocks to be transmitted in the sidelink include transport block 0, transport block 1 and transport block 2. Assume that transport block 0 corresponds to HARQ process id =0, transport block 1 corresponds to HARQ process id =1, and transport block 2 corresponds to HARQ process id =2. In this implementation, the HARQ process identifier used for the indication in the second domain is the HARQ process identifier corresponding to the transport block other than the transport block corresponding to the minimum HARQ process identifier in 0,M transport blocks, and the HARQ process identifiers sequentially increase in size on the basis of the HARQ process identifier indicated in the second domain. Exemplarily, the HARQ process identifier corresponding to the transport block 1 is incremented on the basis of the HARQ process identifier indicated by the second domain (the HARQ process identifier corresponding to the transport block 0), that is, the HARQ process identifier corresponding to the transport block 1 is 1; the HARQ process identifier corresponding to the transport block 2 is incremented on the basis of the HARQ process identifier corresponding to the transport block 1, that is, the HARQ process identifier corresponding to the transport block 2 is 2.

In a possible implementation manner, the second field is a hybrid automatic repeat request process number HARQ process number field, and the number of bits occupied by the second field in the first signaling is 4 bits. Specifically, in the embodiment of the present application, the HARQ process number field of the HARQ process number is re-interpreted. And the HARQ process number of a plurality of hybrid automatic repeat request processes is indicated through limited bits, so that the communication resource is saved.

A third domain:

in a possible implementation manner, the first signaling further includes a third field, where the third field is used to indicate the initial transmission identifiers or the retransmission identifiers of the M transport blocks, and each bit in the third field corresponds to one HARQ process identifier. Optionally, each bit in the third field corresponds to one HARQ process identifier according to a progressive relationship. Illustratively, M =3 is taken as an example, and the transport blocks to be transmitted in the sidelink include transport block 0, transport block 1, and transport block 2. The first bit in the third field corresponds to the HARQ process id of transport block 0, the second bit corresponds to the HARQ process id of transport block 1, and the third bit corresponds to the HARQ process id of transport block 2. Through the first signaling, the initial transmission or blind retransmission of a plurality of transmission blocks can be respectively indicated, and the flexibility of resource configuration is improved.

In a possible implementation manner, the first signaling is a physical layer downlink control signaling DCI format3_0, the third field is a New data indicator field, and a combination of an index Configuration index field and/or a Padding field is configured. The New data indicates that the number of bits occupied by the New data indicator field in the first signaling is 1 bit, and the number of bits occupied by the Configuration index field in the first signaling is 0 bit or 3 bits. Specifically, in the embodiment of the present application, a combination of a New data indicator field, a Configuration index indication field, and/or a Padding field is re-interpreted.

A fourth field:

in a possible implementation, the first signaling further includes a fourth field indicating an index of a partial Bandwidth (BWP) occupied by the M transport blocks. For example, when one network device configures a plurality of active BWPs, the network device may be instructed by the first signaling to transmit data in which one or more BWPs. I.e. scheduling one or more BWPs of the network device by means of the first signaling.

In a possible implementation manner, the fourth field is a Resource pool index field. Specifically, in the embodiment of the present application, the Resource pool index field is re-interpreted. The number of bits occupied by the Resource pool index field in the first signaling is Log ₂ I, where I is configured by higher layer signaling, and originally refers to the total number of resource pools configured by the base station in BWP where the base station sends DCI format3_0, and I in this embodiment of the present application refers to the total number of partial bandwidth BWP preconfigured by the base station where the base station sends DCI format3_0 on a Carrier (Component Carrier).

Optionally, referring to fig. 1, after step 501 is finished, steps 502 to 505 may be further included.

502. The first communication device sends a second signaling to the third communication device, the second signaling being used for scheduling the first resource.

For ease of understanding, please refer to fig. 15, in which fig. 15 is a schematic diagram illustrating a communication resource involved in an embodiment of the present application. The first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), the first resource is used for at least one third communication apparatus to transmit first data to the first communication apparatus, the first data is data received by one or more third communication apparatuses from a second communication apparatus through a second resource, the second resource is a communication resource in a Physical layer sidelink Shared Channel (psch), and the third communication apparatus is a cooperative device of the second communication apparatus.

503. And the first communication device sends a third signaling to a third communication device, wherein the third signaling is used for indicating the deviation value of the first hybrid automatic repeat request HARQ process identifier and the second HARQ process identifier.

Wherein the first communication device broadcasts the third signaling, i.e., transmits the third signaling to one or more third communication devices. And the third signaling is used for indicating an offset value between a first hybrid automatic repeat request HARQ process identifier and a second HARQ process identifier, wherein the first HARQ process identifier is a HARQ process identifier corresponding to the second resource, and the second HARQ process identifier is a HARQ process identifier corresponding to the first resource scheduled by the first signaling.

The offset value between the first HARQ process identifier and the second HARQ process identifier is referred to as P in this embodiment, that is:

HARQ Process ID (UL) = HARQ Process ID (SL) + P. The third signaling is used for indicating the value of P, the absolute value of P is an integer greater than or equal to 0 and less than K, and K is the maximum number of HARQ processes configured by the network side.

For convenience of understanding, please refer to fig. 16 exemplarily, and fig. 16 is a schematic diagram of HARQ process identification in an embodiment of the present application. The relation between the transport block transmitted on the second resource and the first HARQ process identifier is: transport block 0 corresponds to HARQ Process ID (UL) =0; transport block 1 corresponds to HARQ Process ID (UL) =1; transport block 2 corresponds to HARQ Process ID (UL) =2. The relation between the transport block transmitted on the first resource and the second HARQ process identifier is: transport block 0 corresponds to HARQ Process ID (SL) = P; transport block 1 corresponds to HARQ Process ID (SL) = P +1; transport block 2 corresponds to HARQ Process ID (SL) = P +2.

In a possible implementation manner, the third signaling is a physical layer downlink control signaling DCI. For example, the third signaling is a new DCI format 2_x, x > =7.

Step 504 is performed after step 503.

In different embodiments, the execution order between step 502 and step 503 may be different. In other words, step 502 may be executed first, and then step 503 may be executed, at this time, step 504 may be executed after step 503 is executed; step 503 may be executed first, and then step 502 is executed, in which case step 504 is executed after step 502 is executed.

504. The third communication device determines the first resource based on the offset value.

And after the first communication device broadcasts the third signaling, one or more third communication devices receive the third signaling, and the third communication devices determine the position of the first resource according to the deviation value carried by the third signaling. The location of the first resource refers to a time-frequency location of the first resource. Specifically, the first resource is determined according to the offset value between the first HARQ process identifier and the second HARQ process identifier carried in the third signaling and the first data received by the third communication device (from the second communication device) through the second resource. Namely, the second HARQ process identifier is determined according to the deviation value and the first HARQ process identifier.

505. The third communication device transmits the first data to the first communication device using the first resource.

After the one or more third communication devices receive the first data from the second communication device, the third communication device demodulates the first data. If the third communication device correctly demodulates the first data, the third communication device may send the first data to the first communication device through the first resource. By the method, the problem that the first communication device cannot determine which third communication devices (CUEs) are scheduled at the uplink scheduling time so as to avoid uplink resource waste caused by the fact that part of CUEs do not correctly receive the first data can be solved.

In the embodiment of the present application, a first communication device indicates data transmission of multiple transport blocks through one signaling (first signaling) to reduce transmission delay of a second communication device (terminal device).

Fig. 6 is a schematic flowchart illustrating a resource scheduling method according to an embodiment of the present disclosure, where fig. 6 is a flowchart illustrating the resource scheduling method according to the embodiment of the present disclosure. The resource scheduling method provided by the embodiment of the application comprises the following steps:

601. the first communication device sends a second signaling to the third communication device, the second signaling being used for scheduling the first resource.

In this embodiment, the first communication device sends a second signaling to the third communication device, where the second signaling is used to schedule the first resource, for easy understanding, please refer to fig. 15, and fig. 15 is a schematic diagram of a communication resource involved in this embodiment. The first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), the first resource is used for at least one third communication apparatus to send first data to the first communication apparatus, the first data is data received by one or more third communication apparatuses from a second communication apparatus through a second resource, the second resource is a communication resource in a Physical layer sidelink Shared Channel (psch), and the third communication apparatus is a cooperative device of the second communication apparatus.

In a possible implementation manner, the second signaling is a physical layer downlink control signaling DCI. In the embodiment of the present application, the second signaling is DCI format3_0 for description, it is understood that the second signaling may be new DCI after being re-interpreted by current DCI format3_0, and the second signaling may also be new DCI, which is not limited herein.

602. And the first communication device sends a third signaling to the third communication device, wherein the third signaling is used for indicating the deviation value of the first hybrid automatic repeat request HARQ process identifier and the second HARQ process identifier.

Step 602 is similar to step 503, and is not described herein.

603. The third communication device determines the first resource based on the offset value.

Step 603 is similar to step 504, and is not described herein.

604. The third communication device transmits the first data to the first communication device using the first resource.

In this embodiment, step 604 is similar to step 505, and is not described herein again.

The scheme provided by the embodiment of the application is mainly introduced in the aspect of a method. It is to be understood that the communication device includes hardware structures and/or software modules for performing the respective functions in order to realize the above functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the communication apparatus may be divided into functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one transceiver module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

Referring to fig. 17, a communication device in the present application is described in detail below, and fig. 17 is a schematic diagram of an embodiment of the communication device in the embodiment of the present application. The communication apparatus may be deployed in a network device, the communication apparatus comprising:

a transceiver module 1701 for transmitting a first signaling to the second communication device;

In another implementation, the communication device is a chip, a system of chips or a circuit configured in a network device, and the communication device may further include a transceiver module 1701, where the transceiver module 1701 may be an input and/or output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the system of chips or the circuit.

In one possible implementation form of the method,

the transceiver module 1701 is further configured to send a second signaling to the third communication device,

the transceiving module 1701 is further configured to broadcast a third signaling, where the third signaling is used to indicate an offset value between a first HARQ process identifier and a second HARQ process identifier, where the first HARQ process identifier is an HARQ process identifier corresponding to a second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to a first resource scheduled by the first signaling.

In one possible implementation form of the method,

the transceiver module 1701 is further configured to receive first data from at least one third communication device on the first resource.

In one possible implementation, the first sub-field is inactive when N equals 1.

Referring to fig. 18, fig. 18 is a schematic diagram of another embodiment of a communication device according to an embodiment of the present application. The communication apparatus may be disposed in a terminal device, the communication apparatus including:

a transceiving module 1801, configured to receive a first signaling from a first communication device;

In another implementation, the communication device is a chip, a chip system or a circuit configured in a terminal device, and the communication device may further include a transceiver module 1801, where the transceiver module 1801 may be an input and/or output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit.

In a possible implementation manner, the first signaling further includes a third field, where the third field is used to indicate the initial transmission identifiers or the retransmission identifiers of the M transport blocks, and each bit in the third field corresponds to one HARQ process identifier.

In a possible implementation manner, the first signaling is downlink control signaling DCI format3_0, and the fourth field is a resource pool index field.

Referring to fig. 19, fig. 19 is a schematic diagram of another embodiment of a communication device according to an embodiment of the present application. The communication apparatus may be disposed in a terminal device, the communication apparatus including:

a transceiver module 1901, configured to receive a second signaling from a first communications device, where the second signaling is used to schedule a first resource, the first resource is a communications resource in a physical uplink shared channel, PUSCH, and at least one third communications device uses the first resource to send first data to the first communications device, where the first data is data from the second communications device received by the at least one third communications device through the second resource, and the second resource is a communications resource in a physical sidelink shared channel, psch;

the transceiving module 1901 is further configured to receive a third signaling from the first communication apparatus, where the third signaling is used to indicate an offset value between a first HARQ process identifier and a second HARQ process identifier, where the first HARQ process identifier is an HARQ process identifier corresponding to a second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to a first resource scheduled by the first signaling;

a processing module 1902 configured to determine a location of the first resource based on the deviation value;

the transceiving module 1901 is further configured to send first data to the first communications device according to the location of the first resource, where the location of the first resource is determined according to the first resource and the offset value.

In one implementation, the communication device is a terminal device, and the processing module 1902 may be a processor. Optionally, the communication device may further comprise a transceiver.

In another implementation, the communication device is a chip, a system of chips, or a circuit configured in the terminal equipment. The processing module 1902 may be a processor, a processing circuit, a logic circuit, or the like. Optionally, the communication device may further include a transceiver module 1901, and the transceiver module 1901 may be an input and/or output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit.

In one possible implementation form of the method,

the transceiver module 1901 is further configured to receive first data;

a processing module 1902, further configured to demodulate the first data;

the transceiving module 1901 is further configured to transmit the first data to the first communication device when the third communication device correctly demodulates the first data.

Referring to fig. 20, fig. 20 is a schematic diagram of another embodiment of a communication device according to an embodiment of the present application. The communication apparatus may be deployed in a network device, the communication apparatus comprising:

a transceiver module 2001, configured to send a second signaling to a third communications apparatus, where the second signaling is used to schedule a first resource, the first resource is a communication resource in a physical uplink shared channel PUSCH, the first resource is used for the third communications apparatus to send first data to the first communications apparatus, the first data is data received by the third communications apparatus through the second resource, the first data is data received by at least one third communications apparatus through the second resource from the second communications apparatus, and the second resource is a communication resource in a physical sidelink shared channel PSSCH;

the transceiving module 2001 is further configured to broadcast a third signaling, where the third signaling is used to indicate an offset value between a first HARQ process identifier and a second HARQ process identifier, where the first HARQ process identifier is an HARQ process identifier corresponding to a second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to a first resource scheduled by the first signaling.

In another implementation, the communication device is a chip, a system of chips, or a circuit configured in a network device. The communication device further comprises a transceiver module 2001, and the transceiver module 2001 may be an input and/or output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit, etc. on the chip, the system of chips or circuits.

In a possible implementation manner, the transceiving module 2001 is further configured to receive first data on the first resource, where the first data is from a third communication device.

The communication device in the above embodiments may be a network device, or may be a chip applied to a network device, or other combined devices and components that can implement the functions of the network device. When the communication device is a network device, the receiving module and the transmitting module may be transceivers, the transceivers may include antennas, radio frequency circuits and the like, and the processing module may be a processor, such as a baseband chip and the like. When the communication device is a component having the above-mentioned network device function, the receiving module and the sending module may be radio frequency units, and the processing module may be a processor. When the communication device is a chip system, the receiving module may be an input port of the chip system, the transmitting module may be an output port of the chip system, and the processing module may be a processor of the chip system, for example: a Central Processing Unit (CPU).

The specific implementation manner and the advantageous effects of the communication apparatus can be referred to the descriptions in each method embodiment corresponding to fig. 5 to fig. 16, and are not described in detail here.

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 scheduling method of any one 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 with the processor, located external to the processor, or stand-alone.

The term "implemented by hardware" means that the functions of the modules or units are implemented by a hardware processing circuit without a program instruction processing function, and the hardware processing circuit may be composed of discrete hardware components or may be an integrated circuit. In order to reduce power consumption and size, the integrated circuit is usually implemented. The hardware processing circuit may include an ASIC (application-specific integrated circuit), or a PLD (programmable logic device); the PLD may include an FPGA (field programmable gate array), a CPLD (complex programmable logic device), and the like. These hardware processing circuits may be a semiconductor chip packaged separately (e.g., as an ASIC); for example, various hardware circuits and CPUs may be formed on a silicon substrate and packaged separately into a chip, which is also referred to as SoC, or circuits and CPUs for implementing FPGA functions may be formed on a silicon substrate and packaged separately into a chip, which is also referred to as SoPC (system on a programmable chip).

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

Embodiments of the present application also provide a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to control a communication device to perform any one of the implementations shown in the foregoing method embodiments.

The embodiment of the present application further provides a computer program product, which includes computer program code, when the computer program code runs on a computer, the computer is caused to execute any implementation manner shown in the foregoing method embodiment.

The embodiment of the present application further provides a chip system, which includes a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the chip executes any implementation manner shown in the foregoing method embodiments.

The embodiment of the present application further provides a chip system, which includes a processor, where the processor is configured to call and run a computer program, so that the chip executes any implementation manner shown in the foregoing method embodiment.

It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiments of the apparatus provided in the present application, the connection relationship between the modules indicates that there is a communication connection therebetween, and may be implemented as one or more communication buses or signal lines.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by software plus necessary general-purpose hardware, and certainly can also be implemented by special-purpose hardware including special-purpose integrated circuits, special-purpose CPUs, special-purpose memories, special-purpose components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, for the present application, the implementation of a software program is more preferable. Based on such understanding, the technical solutions of the present application or portions contributing to the prior art may be embodied in the form of a software product, where the computer software product is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk of a computer, and includes several instructions for causing a computer device to execute the method according to the embodiments of the present application.

In the above embodiments, all or part of the implementation may be 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 in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, communication apparatus, computing device, or data center to another website site, computer, communication apparatus, computing device, or data center by wire (e.g., coaxial cable, fiber optics, digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device including one or more available media integrated communications apparatus, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

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.

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 technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It 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 be in an electrical, mechanical or other form.

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

In addition, functional units in the embodiments of the present 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 may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a communication device) to execute all or part of the steps of the method of the embodiments of the present application.

Claims

1. A resource scheduling method is applied to an unlicensed frequency band, and comprises the following steps:

the first communication device sends a first signaling to the second communication device;

the first field in the first signaling is used for indicating a time slot interval T between two adjacent transport blocks in M transport blocks TB in sidelink transmission, where the sidelink is used for communication between the second communication device and at least one third communication device, and T is greater than or equal to 0,M and is an integer greater than 1.

2. The method of claim 1, further comprising:

the first communication device sends second signaling to the third communication device,

the second signaling is used for scheduling a first resource, where the first resource is a communication resource in a Physical Uplink Shared Channel (PUSCH), the first resource is used for at least one third communication device to send first data to the first communication device, the first data is data received by the at least one third communication device through a second resource, and the second resource is a communication resource in a Physical Sidelink Shared Channel (PSSCH);

the first communication device broadcasts a third signaling, where the third signaling is used to indicate an offset value between a first hybrid automatic repeat request HARQ process identifier and a second HARQ process identifier, where the first HARQ process identifier is an HARQ process identifier corresponding to the second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to the first resource scheduled by the first signaling.

3. The method of claim 2, further comprising:

the first communication device receives the first data at the first resource, the first data from at least one of the third communication devices.

4. The method according to any one of claims 2 to 3,

the second signaling is physical layer downlink control signaling DCI;

and the third signaling is physical layer downlink control signaling DCI.

5. A resource scheduling method, applied to an unlicensed frequency band, includes:

the first field in the first signaling is used for indicating a time slot interval T between two adjacent transport blocks in M transport blocks TB in sidelink transmission, where the sidelink is used for communication between the second communication device and at least one third communication device, and T is greater than or equal to 0,M, which is an integer greater than 1.

6. The method of any of claims 1-5, wherein the first domain comprises: a first subfield and a second subfield;

the first subfield is used for indicating a time slot interval T1 of two adjacent transmissions in N transmissions of the same transport block, wherein T1 is greater than or equal to 0,N and is an integer greater than 0;

the second subfield is used to indicate a slot interval T between the M transport blocks, where T is greater than or equal to 0.

7. The method of claim 6, wherein the first sub-field is disabled when N equals 1.

8. The method according to any of claims 1-7, wherein the first signaling further comprises a second field for indicating a corresponding minimum hybrid automatic repeat request, HARQ, process identification in the M transport blocks.

9. The method as claimed in claim 8, wherein HARQ process identifiers corresponding to the remaining transport blocks except for the transport block corresponding to the minimum HARQ process identifier in the M transport blocks are sequentially incremented based on the HARQ process identifier indicated by the second field.

10. The method according to any of claims 8-9, wherein the first signaling is downlink control signaling DCI format3_0, and the second field is a hybrid automatic repeat request process number field.

11. The method according to claims 1-10, wherein the first signaling further comprises a third field, the third field is used to indicate the initial transmission identifier or the retransmission identifier of the M transport blocks, and each bit in the third field corresponds to one HARQ process identifier.

12. The method of claim 11, wherein the first signaling is a downlink control signaling DCI format3_0, and the third field is a new data indication field, and a combination of an index field and/or a padding field is configured.

13. The method according to any of claims 1-12, wherein the first signaling further comprises a fourth field for indicating an index of the partial bandwidth in which the M transport blocks are located.

14. The method of claim 13, wherein the first signaling is a downlink control signaling DCI format3_0, and the fourth field is a resource pool index field.

15. The method according to any of claims 1-14, wherein the value of M is indicated by radio resource control signaling, RRC.

16. The method according to any of claims 6-15, wherein the value of N is indicated by radio control signaling, RRC.

17. A communications apparatus, comprising:

18. The communication device of claim 17,

the transceiver module is further configured to send a second signaling to the third communication device,

the transceiver module is further configured to broadcast a third signaling, where the third signaling is used to indicate an offset value between a first HARQ process identifier and a second HARQ process identifier, where the first HARQ process identifier is an HARQ process identifier corresponding to the second resource, and the second HARQ process identifier is an HARQ process identifier corresponding to the first resource scheduled by the first signaling.

19. The communication device of claim 18,

the transceiver module is further configured to receive the first data from at least one of the third communication devices at the first resource.

20. The communication device according to any one of claims 18 to 19,

the second signaling is a physical layer downlink control signaling DCI;

and the third signaling is physical layer downlink control signaling DCI.

21. A communications apparatus, comprising:

the transceiver module is used for receiving a first signaling from a first communication device;

22. The communications apparatus of any of claims 17-21, wherein the first domain comprises: a first subfield and a second subfield;

the first subfield is used for indicating a time slot interval T1 of adjacent two transmissions in N transmissions of the same transmission block, wherein T1 is more than or equal to 0,N and is an integer more than 0;

23. The communications device of claim 22, wherein the first sub-domain is disabled when N equals 1.

24. The communications apparatus according to any one of claims 22-23, wherein the first signaling is downlink control signaling DCI format3_0, and the first field is a time resource allocation field.

25. The communications apparatus of any of claims 17-24, wherein the first signaling further comprises a second field indicating a corresponding minimum hybrid automatic repeat request, HARQ, process identification for the M transport blocks.

26. The communications apparatus as claimed in claim 25, wherein HARQ process identifiers corresponding to the remaining transport blocks except for the transport block corresponding to the minimum HARQ process identifier in the M transport blocks are sequentially incremented based on the HARQ process identifier indicated by the second field.

27. The apparatus according to any of claims 25-26, wherein the first signaling is a downlink control signaling DCI format3_0, and the second field is a hybrid automatic repeat request process number field.

28. The communication apparatus according to claims 17-27, wherein the first signaling further comprises a third field, the third field is used to indicate the initial transmission identifier or the retransmission identifier of the M transport blocks, and each bit in the third field corresponds to one HARQ process identifier.

29. The communications apparatus according to claim 28, wherein the first signaling is a downlink control signaling DCI format3_0, and the third field is a new data indication field, and a combination of an index field and/or a padding field is configured.

30. The communications apparatus of any one of claims 17-29, wherein the first signaling further comprises a fourth field indicating an index of a partial bandwidth in which the M transport blocks are located.

31. The apparatus according to claim 30, wherein the first signaling is a downlink control signaling DCI format3_0, and the fourth field is a resource pool index field.

32. A communication apparatus according to any of claims 17-31, wherein the value M is indicated by radio resource control signalling, RRC.

33. A communication apparatus according to any of claims 22-32, wherein the value of N is indicated by radio control signalling, RRC.

34. A communication apparatus according to any of claims 17-33, wherein the transceiver module is a transceiver.

35. A communication apparatus, characterized in that the communication apparatus comprises: at least one processor;

the at least one processor configured to execute computer programs or instructions stored in the memory to cause the communication device to perform the method of any of claims 1-16.

36. A communication apparatus, characterized in that the communication apparatus comprises: at least one processor and memory;

the memory for storing computer programs or instructions;

37. A computer-readable storage medium having program instructions which, when executed directly or indirectly, cause a method as recited in any of claims 1-16 to be implemented.

38. A computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1-16.

39. A chip system, characterized in that the chip system comprises at least one processor for executing a computer program or instructions stored in a memory, which when executed in the at least one processor causes the method according to any of claims 1-16 to be implemented.