CN115915426A

CN115915426A - Resource scheduling method and communication equipment

Info

Publication number: CN115915426A
Application number: CN202110903105.8A
Authority: CN
Inventors: 高飞; 焦淑蓉; 李军
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-04-04
Also published as: WO2023011081A1

Abstract

The application provides a resource scheduling method and communication equipment, wherein the method comprises the following steps: receiving first DCI and second DCI, wherein the first DCI schedules a first PDSCH, and the second DCI schedules a second PDSCH; determining that the first PDSCH and the second PDSCH satisfy: the number of symbols between the first PDSCH and the second PDSCH is less than or equal to a threshold, the first PDSCH comprises a preamble DMRS and an additional DMRS, and the second PDSCH does not comprise the additional DMRS; skipping decoding processing of the second PDSCH, and/or sending second HARQ-ACK information with the second PDSCH, wherein a third PDSCH is not arranged between the first PDSCH and the second PDSCH. By determining that the first PDSCH and the second PDSCH meet the first predefined condition by the UE, the method and the device can avoid the influence of the previous PDSCH on the processing time of the next PDSCH.

Description

Resource scheduling method and communication equipment

Technical Field

The present application relates to the field of communications, and in particular, to a method for resource scheduling and a communication device.

Background

The New Radio (NR) protocol version 15 (release 15, rel-15) introduces the processing time T of the Physical Downlink Shared Channel (PDSCH) _proc,1 A concept. Processing time T _proc,1 Is defined as starting from the symbol next to the end time domain symbol of the PDSCH transmitted by the network device and starting from the time domain symbol before the starting time domain symbol of the Physical Uplink Control Channel (PUCCH) transmitted by the terminal device. The terminal device needs to send hybrid automatic repeat-request acknowledgement (HARQ-ACK) information corresponding to the PDSCH on the PUCCH resource.

Processing time T _proc,1 Is mainly related to the additional modulation reference signal (additional DMRS). For example, if one PDSCH includes additional pilots, the terminal device needs to start channel estimation after receiving all pilots, and then start demodulation and decoding. If a PDSCH only contains the head-row pilot, the terminal device can start channel estimation after receiving the head-row pilot, thereby shortening the processing time T _proc,1 。

Back-to-back scheduling (back-to-back scheduling) refers to scheduling two consecutive PDSCHs by a network device. In the case that the previous PDSCH has additional pilots and the next PDSCH does not have additional pilots, the additional pilots included in the previous PDSCH may delay the processing time of the next PDSCH by the terminal device, so that the terminal device may not complete the processing within the time specified by the protocol.

Therefore, how to solve the problem of the existence of additional pilots in the back-to-back scheduling is a technical problem that needs to be solved at present.

Disclosure of Invention

The application provides a resource scheduling method and communication equipment, which can avoid the influence of at least one extra pilot frequency included by a previous PDSCH on the processing time of a next PDSCH when the previous PDSCH has the extra pilot frequency and the next PDSCH has no extra pilot frequency in a back-to-back scheduling scene, thereby improving the resource scheduling efficiency of network equipment and improving the communication efficiency.

In a first aspect, a method for resource scheduling is provided, including: receiving first Downlink Control Information (DCI) and second DCI, wherein the first DCI is used for scheduling a first Physical Downlink Shared Channel (PDSCH), and the second DCI is used for scheduling a second PDSCH; determining that a first predefined condition is satisfied between the first PDSCH and the second PDSCH, the first predefined condition including: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS; skipping decoding processing of the second PDSCH, and/or sending second hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the second PDSCH, wherein an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and no third PDSCH exists between the first PDSCH and the second PDSCH.

Through the technical scheme, the influence of the extra pilot frequency included by the previous PDSCH on the processing time of the next PDSCH can be avoided, and therefore the communication efficiency can be improved.

With reference to the first aspect, in certain implementations of the first aspect, the first DCI is DCI format 1_0 or DCI format 1 _u1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the first aspect, in some implementations of the first aspect, the cyclic redundancy check code CRC of the DCI format 1\0is scrambled by a cell radio network temporary identity C-RNTI or a configured scheduling radio network temporary identity CS-RNTI or a modulation and coding scheme cell radio network temporary identity MCS-C-RNTI.

With reference to the first aspect, in certain implementations of the first aspect, the HARQ-ACK information includes a NACK, and a 0 value of the HARQ-ACK information corresponds to the NACK.

It is to be understood that the three possible implementations of the first aspect described above may be combined with each other, for example, the first possible implementation may be combined with the second possible implementation, the first possible implementation may be combined with the third possible implementation, and so on.

In a second aspect, a method for resource scheduling is provided, including: receiving first Downlink Control Information (DCI) and second DCI, wherein the first DCI is used for scheduling a first Physical Downlink Shared Channel (PDSCH), the second DCI is used for scheduling a second PDSCH, the second DCI comprises a time slot offset parameter, the time slot offset parameter is used for indicating that the number of time slots at which terminal equipment sends second hybrid automatic repeat request response (HARQ-ACK) information corresponding to the second PDSCH and the number of time slots at which the second PDSCH is located are N, and N is a positive integer; determining that N is less than or equal to a predefined second threshold; skipping decoding processing of the second PDSCH, and/or sending second HARQ-ACK information, wherein the number of time slots of an interval between a time slot where the second HARQ-ACK information is located and a time slot where the second PDSCH is located is N, an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and no third PDSCH exists between the first PDSCH and the second PDSCH.

With reference to the second aspect, in some implementations of the second aspect, the first DCI is DCI format 1_0 or DCI format 1 _u1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the second aspect, in some implementations of the second aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is scrambled by a cell radio network temporary identity C-RNTI or a configured scheduling radio network temporary identity CS-RNTI or a modulation and coding scheme cell radio network temporary identity MCS-C-RNTI.

With reference to the second aspect, in some implementations of the second aspect, the HARQ-ACK information includes a NACK, and a 0 value of the HARQ-ACK information corresponds to the NACK.

It should be understood that the three possible implementations of the second aspect described above may be combined with each other, for example, the first possible implementation may be combined with the second possible implementation, the first possible implementation may be combined with the third possible implementation, and so on.

In a third aspect, a method for resource scheduling is provided, including: determining that a first Physical Downlink Shared Channel (PDSCH) and a second PDSCH which are sent to a terminal device meet a second predefined condition, wherein the second predefined condition comprises that: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is greater than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS; and transmitting the first downlink control information DCI, the second DCI, the first PDSCH and the second PDSCH, wherein the first DCI is used for scheduling the first PDSCH, the second DCI is used for scheduling the second PDSCH, an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and a third PDSCH which is not transmitted to the terminal equipment is arranged between the first PDSCH and the second PDSCH.

Whether the first PDSCH and the second PDSCH meet a second predefined condition or not is determined through the network equipment, and the network equipment can normally schedule the first PDSCH and the second PDSCH, so that the method and the device can avoid the influence of the first PDSCH on the processing time of the second PDSCH in a back-to-back scheduling scene when extra pilot frequency exists in the first PDSCH and the extra pilot frequency does not exist in the second PDSCH, and the communication efficiency can be improved.

With reference to the third aspect, in certain implementations of the third aspect, the first DCI is DCI format 1_0 or DCI format 1 _u1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the fourth aspect, in some implementations of the fourth aspect, the cyclic redundancy check code CRC of the DCI format 1\0is scrambled by a cell radio network temporary identity C-RNTI or a configured scheduling radio network temporary identity CS-RNTI or a modulation and coding scheme cell radio network temporary identity MCS-C-RNTI.

With reference to the third aspect, in some implementations of the third aspect, the HARQ-ACK information includes a NACK, and a 0 value of the HARQ-ACK information corresponds to the NACK.

It should be understood that the three possible implementations of the third aspect described above may be combined with each other, for example, the first possible implementation may be combined with the second possible implementation, the first possible implementation may be combined with the third possible implementation, and so on.

In a fourth aspect, a method for resource scheduling is provided, including: determining that a first physical downlink control channel (PDSCH) and a second PDSCH sent to a terminal device meet a first predefined condition, wherein the first predefined condition comprises: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS; and sending a first Downlink Control Information (DCI), a second DCI, a first PDSCH and a second PDSCH, wherein the second DCI comprises a time slot offset parameter, the time slot offset parameter is used for indicating that the terminal equipment sends a second hybrid automatic repeat request response (HARQ-ACK) information corresponding to the second PDSCH, the number of time slots of an interval between the time slot where the terminal equipment sends the HARQ-ACK information and the time slot where the second PDSCH is located is N, the N is larger than or equal to a predefined second threshold value, and is a positive integer, wherein the first DCI is used for scheduling the first PDSCH, the second DCI is used for scheduling the second PDSCH, an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and a third PDSCH which is not sent to the terminal equipment is between the first PDSCH and the second PDSCH.

The network equipment determines or judges that the first PDSCH and the second PDSCH meet the first predefined condition, and the network equipment can normally schedule the first PDSCH and the second PDSCH, so that in a back-to-back scheduling scene, when extra pilot frequency exists in the first PDSCH and the extra pilot frequency does not exist in the second PDSCH, the influence of the first PDSCH on the processing time of the second PDSCH is avoided, and the communication efficiency can be improved.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first DCI is DCI format 1_0 or DCI format 1 _u1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the fourth aspect, in some implementations of the fourth aspect, the cyclic redundancy check code CRC of DCI format 1_0 is scrambled by a cell radio network temporary identity C-RNTI or a configured scheduling radio network temporary identity CS-RNTI or a modulation and coding scheme cell radio network temporary identity MCS-C-RNTI.

In a fifth aspect, a method for resource scheduling is provided, including: determining that a first physical downlink control channel (PDSCH) and a second PDSCH sent to a terminal device meet a first predefined condition, wherein the first predefined condition comprises: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS; and sending a first Downlink Control Information (DCI), a third DCI, a first PDSCH and a third PDSCH, wherein the first DCI is used for scheduling the first PDSCH, the third DCI is used for scheduling the third PDSCH, an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and a fourth PDSCH which is sent to the terminal equipment is not sent between the first PDSCH and the second PDSCH, wherein the number of time domain symbols which are separated between the ending time domain symbol of the first PDSCH and the starting time domain symbol of the third PDSCH is K, and K is greater than or equal to the first threshold.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the method further includes: the second PDSCH is not transmitted.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first DCI is DCI format 1_0 or DCI format 1 _u1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the fifth aspect, in some implementations of the fifth aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is scrambled by a cell radio network temporary identity C-RNTI or a configured scheduling radio network temporary identity CS-RNTI or a modulation and coding scheme cell radio network temporary identity MCS-C-RNTI.

With reference to the fifth aspect, in some implementations of the fifth aspect, the HARQ-ACK information includes a NACK, and a 0 value of the HARQ-ACK information corresponds to the NACK.

It should be understood that the last three possible implementations of the fifth aspect described above may be combined with each other, for example, the first possible implementation is combined with the second possible implementation, the first possible implementation is combined with the third possible implementation, and so on.

In a sixth aspect, there is provided a resource communication device comprising: a transceiving unit, configured to receive first downlink control information DCI and second DCI, where the first DCI is used to schedule a first physical downlink shared channel PDSCH and the second DCI is used to schedule a second PDSCH; a processing unit configured to determine that a first predefined condition is satisfied between the first PDSCH and the second PDSCH, the first predefined condition including: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS; the processing unit is used for skipping decoding processing of the second PDSCH, and/or the transceiving unit is used for sending second hybrid automatic repeat request response (HARQ-ACK) information corresponding to the second PDSCH, wherein an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and no third PDSCH exists between the first PDSCH and the second PDSCH.

With reference to the sixth aspect, in certain implementations of the sixth aspect, the first DCI is DCI format 1_0 or DCI format 1 _u1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the sixth aspect, in some implementations of the sixth aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is scrambled by a cell radio network temporary identity C-RNTI or a configured scheduling radio network temporary identity CS-RNTI or a modulation and coding scheme cell radio network temporary identity MCS-C-RNTI.

With reference to the sixth aspect, in certain implementations of the sixth aspect, the HARQ-ACK information includes a NACK, and a 0 value of the HARQ-ACK information corresponds to the NACK.

It is to be understood that the three possible implementations of the above-described sixth aspect may be combined with each other, for example, the first possible implementation may be combined with the second possible implementation, the first possible implementation may be combined with the third possible implementation, and so on.

In a seventh aspect, a communication device is provided, including: a transceiving unit, configured to receive first downlink control information DCI and second DCI, where the first DCI is used to schedule a first physical downlink shared channel PDSCH, the second DCI is used to schedule a second PDSCH, and the second DCI includes a time slot offset parameter, where the time slot offset parameter is N, and N is a positive integer, where the number of time slots in a gap between a time slot in which a terminal device sends second hybrid automatic repeat request acknowledgement HARQ-ACK information corresponding to the second PDSCH and a time slot in which the second PDSCH is located is used to instruct the terminal device to send the second HARQ-ACK information; determining that N is less than or equal to a predefined second threshold; and the processing unit is used for skipping decoding processing of the second PDSCH, and/or the transceiving unit is used for sending second HARQ-ACK information, wherein the number of time slots at intervals between the time slot of the second HARQ-ACK information and the time slot of the second PDSCH is N, the ending time domain symbol of the first PDSCH is before the starting time domain symbol of the second PDSCH, and no third PDSCH exists between the first PDSCH and the second PDSCH.

With reference to the seventh aspect, in some implementations of the seventh aspect, the first DCI is DCI format 1_0 or DCI format 1 _u1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the seventh aspect, in some implementations of the seventh aspect, the cyclic redundancy check code CRC of the DCI format 1\u0 is scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling radio network temporary identifier CS-RNTI or a modulation and coding scheme cell radio network temporary identifier MCS-C-RNTI.

With reference to the seventh aspect, in some implementations of the seventh aspect, the HARQ-ACK information includes NACK, and a value 0 of the HARQ-ACK information corresponds to NACK.

It should be understood that the three possible implementations of the seventh aspect described above may be combined with each other, for example, the first possible implementation is combined with the second possible implementation, the first possible implementation is combined with the third possible implementation, and so on.

In an eighth aspect, there is provided a communication device comprising: a processing unit, configured to determine that a first physical downlink shared channel PDSCH and a second PDSCH sent to a terminal device satisfy a second predefined condition, where the second predefined condition includes: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is greater than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS; and a transceiver unit, configured to transmit first downlink control information DCI, second DCI, a first PDSCH and a second PDSCH, where the first DCI is used to schedule the first PDSCH and the second DCI is used to schedule the second PDSCH, an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and a third PDSCH transmitted to the terminal device is not between the first PDSCH and the second PDSCH.

With reference to the eighth aspect, in some implementations of the eighth aspect, the first DCI is DCI format 1_0 or DCI format 1_1 or DCI format 1_2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the eighth aspect, in some implementations of the eighth aspect, the cyclic redundancy check code CRC of the DCI format 1 \ u 0 is scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling radio network temporary identifier CS-RNTI or a modulation and coding scheme cell radio network temporary identifier MCS-C-RNTI.

With reference to the eighth aspect, in certain implementations of the eighth aspect, the HARQ-ACK information includes a NACK, and a 0 value of the HARQ-ACK information corresponds to the NACK.

It should be understood that the three possible implementations of the above-described eighth aspect may be combined with each other, for example, the first possible implementation is combined with the second possible implementation, the first possible implementation is combined with the third possible implementation, and so on.

In a ninth aspect, there is provided a communication device comprising: a processing unit, configured to determine that a first physical downlink control channel PDSCH and a second PDSCH sent to a terminal device satisfy a first predefined condition, where the first predefined condition includes: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS; a transceiving unit, configured to send first downlink control information DCI, second DCI, a first PDSCH and a second PDSCH, where the second DCI includes a time slot offset parameter, the time slot offset parameter is a time slot number that is used to instruct a terminal device to send a second hybrid automatic repeat request acknowledgement HARQ-ACK information corresponding to the second PDSCH and is spaced between a time slot where the second PDSCH is located, the time slot number is N, N is greater than or equal to a predefined second threshold, and N is a positive integer, where the first DCI is used to schedule the first PDSCH and the second DCI is used to schedule the second PDSCH, an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and a third PDSCH that is not sent to the terminal device is located between the first PDSCH and the second PDSCH.

With reference to the ninth aspect, in some implementations of the ninth aspect, the first DCI is DCI format 1_0 or DCI format 1_1 or DCI format 1_2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the ninth aspect, in some implementations of the ninth aspect, the cyclic redundancy check code CRC of the DCI format 1 \ u 0 is scrambled by a cell radio network temporary identity C-RNTI or a configured scheduling radio network temporary identity CS-RNTI or a modulation and coding scheme cell radio network temporary identity MCS-C-RNTI.

It should be understood that two possible implementations of the above-described ninth aspect may be combined with each other, for example, a first possible implementation is combined with a second possible implementation, a first possible implementation is combined with a third possible implementation, and so on.

In a tenth aspect, there is provided a communication apparatus comprising: a processing unit, configured to determine that a first physical downlink control channel PDSCH and a second PDSCH sent to a terminal device satisfy a first predefined condition, where the first predefined condition includes: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS; and a transceiver unit, configured to send first downlink control information DCI, third DCI, a first PDSCH and a third PDSCH, where the first DCI is used to schedule the first PDSCH and the third DCI is used to schedule the third PDSCH, an ending time domain symbol of the first PDSCH is before a starting time domain symbol of the second PDSCH, and a fourth PDSCH sent to the terminal device is not sent between the first PDSCH and the second PDSCH, where the number of time domain symbols spaced between the ending time domain symbol of the first PDSCH and the starting time domain symbol of the third PDSCH is K, and K is greater than or equal to the first threshold.

With reference to the tenth aspect, in some implementations of the tenth aspect, the transceiver unit is further configured to not transmit the second PDSCH.

With reference to the tenth aspect, in some implementations of the tenth aspect, the first DCI is DCI format 1_0 or DCI format 1_1 or DCI format 1_2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

With reference to the tenth aspect, in some implementations of the tenth aspect, the cyclic redundancy check code CRC of the DCI format 1 \ u 0 is scrambled by a cell radio network temporary identity C-RNTI or a configured scheduling radio network temporary identity CS-RNTI or a modulation and coding scheme cell radio network temporary identity MCS-C-RNTI.

With reference to the tenth aspect, in some implementations of the tenth aspect, the HARQ-ACK information includes a NACK, and a 0 value of the HARQ-ACK information corresponds to the NACK.

It should be understood that the last three possible implementations of the above-described tenth aspect may be combined with each other, for example, the first possible implementation is combined with the second possible implementation, the first possible implementation is combined with the third possible implementation, and so on.

In an eleventh aspect, there is provided a computer storage medium storing instructions that, when executed on a computer, cause the computer to perform a method of resource scheduling as described in the first aspect and any one of the possible implementations of the first aspect; alternatively, the computer performs the method of resource scheduling as described in the second aspect and any possible implementation manner of the second aspect.

In a twelfth aspect, there is provided a computer storage medium storing instructions that, when executed on a computer, cause the computer to perform the method for resource scheduling as described in the third aspect and any one of the possible implementations of the third aspect; alternatively, the computer performs the method for resource scheduling as described in the fourth aspect and any possible implementation manner of the fourth aspect; alternatively, the computer performs the method of resource scheduling as described in the fifth aspect and any possible implementation manner of the fifth aspect.

A thirteenth aspect provides a computer program product for, when run on a computer, causing the computer to perform a method of resource scheduling as described in the first aspect and any one of the possible implementations of the first aspect; alternatively, a method of resource scheduling as described in the second aspect and any one of the possible implementations of the second aspect is performed.

A fourteenth aspect provides a computer program product for, when running on a computer, causing the computer to perform the method of resource scheduling as set forth in the third aspect and any one of the possible implementations of the third aspect; alternatively, the method of resource scheduling as described in the fourth aspect and any possible implementation manner of the fourth aspect; alternatively, the method for resource scheduling as described in the fifth aspect and any possible implementation manner of the fifth aspect.

Drawings

Fig. 1 is a schematic diagram of an application scenario provided in the present application.

Fig. 2 is a schematic diagram of a scheduled PDSCH resource provided by the present application.

Fig. 3 is a schematic diagram of a back-to-back scheduling provided in the present application.

Fig. 4 is a schematic flowchart of a resource scheduling method provided in the present application.

Fig. 5 is a schematic flowchart of another resource scheduling method provided in the present application.

Fig. 6 is a schematic flow chart of another resource scheduling method provided in the present application.

Fig. 7 is a schematic flowchart of another resource scheduling method provided in the present application.

Fig. 8 is a schematic flow chart of still another resource scheduling method provided in the present application.

Fig. 9 is a block diagram illustrating a structure of a communication device according to the present application.

Fig. 10 is a block diagram schematically illustrating a structure of another communication device provided in the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the present application may be applied to various communication systems, for example, a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a WiMAX) system, a UMTS (universal mobile telecommunications system), a UMTS (universal microwave access) system, a fifth generation (g) communication system, a sixth generation (6, g) communication system, a future generation (NR) communication system, and the like.

The terminal device of the embodiment of the application can be called a terminal, and can be a device with a wireless transceiving function, which 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 User Equipment (UE), wherein the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device having wireless communication functionality. Illustratively, the UE may be a mobile phone (mobile phone), a tablet computer, or a computer with wireless transceiving function. The terminal device may also be a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in smart grid, a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on. In the embodiment of the present application, the apparatus for implementing the function of the terminal may be a terminal; it may also be a device, such as a system-on-chip, capable of supporting the terminal to implement the function, which may be installed in the terminal. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. In the technical solution of the embodiment of the present application, a device for implementing a function of a terminal is a terminal, and the terminal is a UE as an example, so that the technical solution of the embodiment of the present application is described.

The network device in the embodiment of the present application includes an access network device, such as a Base Station (BS), and the BS may be a device deployed in a radio access network and capable of performing wireless communication with a terminal. The base station may have various forms, such as a macro base station, a micro base station, a relay station, an access point, and the like. For example, the base station related to the embodiment of the present application may be a base station in 5G or an Evolved Node B (eNB) in LTE, where the base station in 5G may also be referred to as a Transmission Reception Point (TRP) or a 5G base station (next-generation Node B, gNB). In the embodiment of the present application, the apparatus for implementing the function of the network device may be a network device; or may be a device, such as a system-on-chip, capable of supporting the network device to implement the function, and the device may be installed in the network device. In the technical solution of the embodiment of the present application, a device for implementing a function of a network device is a network device, and the network device is a base station as an example, which is described in the technical solution of the embodiment of the present application.

In the embodiments of the present application, the term "wireless communication" may also be simply referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission", or "transmission".

Fig. 1 shows a schematic diagram of a communication system #100 suitable for use in the solution of the present application. Specifically, as shown in fig. 1, a communication system #100 includes a network apparatus #101 and a UE #102, the network apparatus #101 being any of the network apparatuses listed above, and the UE #102 being any of the terminal apparatuses listed above.

In the communication system #100 shown in fig. 1, the transmission between the network device #101 and the UE #102 may be implemented by radio waves, or may be implemented by transmission media such as visible light, laser, infrared, optical fibers, and the like, which is not specifically limited in this application.

Fig. 2 shows a schematic diagram of scheduling PDSCH resources provided by the present application. As shown in particular in fig. 2.

Specifically, the network device schedules a PDSCH resource through a Physical Downlink Control Channel (PDCCH), and includes control information, for example, downlink Control Information (DCI), in the PDCCH to notify the UE of PUCCH-related information carrying HARQ-ACK information corresponding to the PDSCH. Wherein, the UE cannot send HARQ-ACK information corresponding to the PDSCH before the initial time domain symbol of the PUCCH resource, otherwise, the UE cannot process time T _proc,1 The processing of the PDSCH is internally completed so that the harq-ACK information corresponding to the PDSCH cannot be transmitted on the PUCCH resource indicated by the network device.

It should be appreciated that the processing time T _proc,1 Length and number N of ₁ And d _1,1 The two parameters are in a positive correlation relationship. Wherein, N ₁ Is a set of values predefined by the protocol, which are related to two parameters, capability reporting information of the UE and subcarrier spacing. Table 1 shows the N of PDSCH corresponding to the processing capability 1 (capability 1, cap1) of the UE on PDSCH ₁ (alternatively, N may be substituted ₁ As a processing time T _proc,1 ) Table 2 shows the processing capability 2 (capability 2, cap2) of the UE for the PDSCH and N of the PDSCH ₂ (as before). The details are shown in tables 1 and 2.

TABLE 1

TABLE 2

It should be understood that the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols in the left column of table 1 is significantly greater than the number of OFDM symbols in the right column of table 1, which indicates that the UE has a shorter processing time for the PDSCH in the absence of the additional pilot, and thus, the network device may be closer to the time domain symbol position of the corresponding PDSCH in scheduling the corresponding PUCCH. The smaller number of OFDM symbols in table 2 compared to the number of OFDM symbols in table 1 indicates that the UE has a shorter processing time for PDSCH at processing capability 2, but has a higher requirement for processing capability of the UE, and therefore, the network device may be closer to the time domain symbol position of the corresponding PDSCH when scheduling the corresponding PUCCH.

In general, after N is determined ₁ The UE then needs to determine d _1,1 Can the processing time T of the PDSCH be finally determined _proc,1 。d _1,1 Is a variable related to the number of overlapping OFDM symbols between one scheduling PDCCH and one scheduled PDSCH. d is a radical of _1,1 The definition of the method varies according to different UE capability reporting and PDSCH mapping types, and the technical scheme of the embodiment of the application does not relate to d _1,1 And therefore, will not be described in detail.

Generally, when a UE reports to a network device a processing capability 2 of the UE supporting a PDSCH in a certain subcarrier interval, the network device may configure, through Radio Resource Control (RRC) parameters, whether a cell (cell) to which the UE belongs enables the processing capability 2 of the PDSCH, and if the UE enables the processing capability 2 of the PDSCH, the UE needs to determine whether the PDSCH can be processed according to the processing capability 2 of the PDSCH by combining another condition, that is, whether the PDSCH can be processed according to N defined in table 2 ₁ To process the PDSCH.

The other condition is that the UE needs to judge whether the dmrs-additionPosition contained in the higher layer parameters dmrs-downlinkForPDSCH-mappingTypeA and dmrs-downlinkForPDSCH-mappingTypeB is configured as 'pos0'. For example:

the dmrs-additionposition included in the 1-dmrs-downlinkforsdsch-mappingtype a and dmrs-downlinkforsdsch-mappingtype b are both configured as 'pos0', and the network device configures the processing capability 2 of the cell-Enabled PDSCH (e.g., configured by the higher layer parameter processtytype 2 Enabled), then the UE follows N defined in table 2 ₁ For PDSCH processing, the network device needs to refer to N defined in Table 2 ₁ And carrying out PUCCH scheduling.

The dmrs-additionposition included in the 2-dmrs-downlinkforsdsch-mappingtype a and dmrs-downlinkforsdsch-mappingtype b are both configured as 'pos0', and the network device configures the processing capability 2 of the cell-not-enabled PDSCH (i.e., according to the processing capability 1 of the PDSCH), then the UE follows N defined in the left column of table 1 ₁ For PDSCH processing, the network device needs to refer to N defined in the left column of Table 2 ₁ And carrying out PUCCH scheduling.

At least one configuration of the dmrs-additional position included in the 3-dmrs-downlink forcipath-mapping type a and the dmrs-downlink forcipath-mapping type b is not 'pos0' or at least one is not configured, and the network device configures the processing capability 2 of the cell-non-enabled PDSCH (i.e., according to the processing capability 1 of the PDSCH), then the UE follows N defined in the right column of table 1 ₁ For PDSCH processing, the network device needs to refer to N defined in the right column of Table 2 ₁ And carrying out PUCCH scheduling.

The relationship between the higher layer parameter configuration and the processing time of the PDSCH is further described below.

The network device may schedule PDSCH through DCI formats (DCI formats) 1_0, 1_1, and 1_2. Both DCI formats 1_1 and 1_2 have respective corresponding high layer parameters dmrs-additionposition, i.e., the network device may configure specific high layer parameters through DCI formats 1 _1and 1_2, thereby scheduling PDSCH. It should be appreciated that whether additional pilots are present for PDSCH scheduled by the network device is related to the value of the higher layer parameter. Exemplarily, the network device configures dmrs-additionposition as pos1 or pos2 or pos3, which means that PDSCH scheduled by DCI format 1 or 1,2 may have extra pilots.

For PDSCH mapping type A, when the network device schedules OFDM symbol length l of PDSCH _d Above 7 OFDM symbols, there will be additional pilots. Exemplarily, dmrs-AdditionalPosition = 'pos2', l _d =13, as can be seen from table lookup 3, the PDSCH includes 13 consecutive OFDM symbols, includes a first-loaded DMRS (front-loaded DMRS), and further includes two columns of (additional) pilots, and the positions of the first pilot and the two additional pilots are located at symbol l ₀ Symbol 7 and 11. Also illustratively, dmrs-AdditionalPosition = 'pos0', l _d =13, as can be seen from table lookup 3, the PDSCH includes 13 consecutive OFDM symbols and only the first pilot, and its position is L ₀ And no additional pilots are included.

TABLE 3

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Specifically,/in the first column of Table 1 _d The value represents the number of time domain symbols occupied by one transmission (one PDSCH). When the PUSCH resource mapping Type is Type B, candidate values of DMRS Additional positions DMRS-Additional Position are {0,1,2,3}, that is, the number of the Additional DMRS is 0,1,2 and 3 respectively. The value of the dmrs-Additional Position is configured by the network device through higher layer signaling, where l ₀ Refers to a preamble DMRS.

It should be noted that, in the embodiment of the present application, the first-column pilot is equivalent to the pre-DMRS, the additional pilot is equivalent to the additional DMRS, and the time domain symbol is mainly in the form of an OFDM symbol, which is uniformly described herein and will not be described in detail later.

It should be understood that the protocol is based on D for the network deviceCI format 1_0 has a special definition for scheduling PDSCH. Illustratively, when the network device schedules mapping type A and mapping type B based on DCI format 1_0, the value of the higher layer parameter dmrs-additionPosition corresponding to this DCI format 1_0 is treated as 'pos2', i.e., when the network device schedules the OFDM symbol length l of the PDSCH of mapping type A based on DCI format 1_0 _d When the number is more than 7, the PDSCH comprises at least one column (one) of additional pilot frequency, and the OFDM symbol length l of the PDSCH of the mapping type B is scheduled _d And greater than 4, the PDSCH includes at least one column (one) of additional pilots. In addition, no PDSCH scheduled by the network device based on DCI format 1_0 contains additional pilots.

Since the high-level parameter dmrs-additionposition value corresponding to the PDSCH scheduled by DCI format 1 \0is regarded as 'pos2' in the protocol, it can be known from table 1 and table 2 that the processing time of the PDSCH by the UE always adopts the time defined in the right column of table 1, and does not use the N defined in the left column of table 1 ₁ Nor N defined in Table 2 ₁ Because of the number of OFDM symbols l on the scheduled PDSCH _d In the longer case, the PDSCH always includes additional pilots, which requires a longer processing time for the PDSCH by the UE. In addition, the change of the processing time of the PDSCH according to the dynamic parameter change is also avoided.

Exemplarily, if the UE reports the processing capability 2 of the PDSCH to the network device, the network device configures the processing capability 2 of the PDSCH in a cell to which the UE belongs through a high-level parameter, and configures the high-level parameter dmrs-additionposition value corresponding to the DCI format 1_, 1, to be ' pos0', when the UE receives the PDSCH scheduled by the network device based on the DCI format 1_, the UE shall adopt the N defined in table 2 because the network device enables the processing capability 2 of the PDSCH in the cell, and the high-level parameter dmrs-additionposition value corresponding to the DCI format 1_, 1, is ' pos0 ₁ To process the PDSCH. However, if the network device enables the processing capability of the PDSCH used by the cell 2 and the UE receives the PDSCH scheduled by the network device based on DCI format 1_0, the UE still uses N as defined in the right column of Table 1 ₁ 。

As can be seen from the foregoing, whether the UE can process the PDSCH according to the time defined in table 2 depends, more importantly, on the DCI format type configured by the network device received by the UE, so that the DCI format type may affect the processing time for the UE to process the PDSCH.

It should be understood that back-to-back scheduling refers to a network device scheduling two consecutive PDSCHs together. Exemplarily, the network device needs to schedule the first PDSCH and the second PDSCH of the same terminal device without other PDSCHs scheduled for the terminal device, and the ending time domain symbol of the first PDSCH is before the starting time domain symbol of the second PDSCH. If the first PDSCH includes a pre-DMRS and at least one additional DMRS, and the second PDSCH includes only a pre-DRMS, but does not include the additional DMRS, the UE needs to process the first PDSCH after completely receiving all pilots of the first PDSCH, which delays the processing time of the UE on the second PDSCH, and may cause the UE not to complete the processing within the time specified by the protocol.

It should be understood that the time specified herein refers to the shortest processing time of the PDSCH defined by the protocol, and the network device may schedule the UE to perform HARQ-ACK information feedback on the second PDSCH after the shortest processing time. Fig. 3 is a schematic diagram illustrating a scenario of back-to-back scheduling provided in the present application, and is specifically shown in fig. 3.

More specifically, in the above scenario of back-to-back scheduling, if the capability information on the first PDSCH reported by the UE is processing capability 1, the DCI format configured by the network device is 1_0 (the high layer parameter dmrs-additional position value is 'pos 2'), the capability information on the second PDSCH reported by the UE is processing capability 2, and the DCI format configured by the network device is 1_1, for example, the high layer parameter dmrs-additional position value is 'pos0', the extra pilot included in the first PDSCH may delay the processing time of the second PDSCH by the UE.

Currently, the existing protocols propose several solutions to this technical problem, for example:

1) The UE does not expect the network device to schedule a unicast PDSCH (unicast PDSCH) based on DCI format 1_0, specifically involving two cases: l _d >7 (mapping type A) or l _d >4 (mapping type B). The unicast PDSCH is relative to the broadcast PDSCH, bThe roadcast PDSCH indicates a broadcast PDSCH, that is, broadcast information is carried in the PDSCH, and the unicast indicates that UE-specific information is carried in the PDSCH.

2) The UE does not expect the network device to schedule unicast PDSCH based on DCI format 1_0.

3) The UE has a processing capability of 2 for the second PDSCH regardless of whether the first PDSCH contains an additional DM-RS.

4) The UE has to process the second PDSCH with a processing capability of 2 regardless of whether the first PDSCH contains additional DM-RS, but the UE does not expect to process any additional DM-RS in the first PDSCH, thereby keeping the pilot mapping and rules unchanged.

5) Whether the first PDSCH contains the additional DM-RS or not, the processing capacity of the UE on the second PDSCH is 2, but the UE does not expect to process any additional DM-RS in the first PDSCH and updates the pilot mapping rule: when the network equipment enables the processing capability of the cell 2, but does not configure the additional DM-RS of the first PDSCH, the UE assumes the higher layer parameter dmrs-additional position value of the first PDSCH to be 'pos0'.

6) The network device may schedule unicast PDSCH of all lengths based on DCI format 1_0. For example, in back-to-back scheduling, the first PDSCH is scheduled by the network device based on DCI format 1_0, and needs to use N defined in the table corresponding to processing capability 1 of the PDSCH ₁ PDSCH processing is performed, and the second PDSCH is scheduled by the network equipment based on DCI format 1_1 and needs to use N defined in the table corresponding to the processing capability 2 of the PDSCH according to RRC parameter configuration ₁ And performing PDSCH processing. OFDM symbol number l of PDSCH when network equipment schedules _d >7 (mapping type A) or l _d >4 (mapping type B), the processing time of the PDSCH by the UE falls back from the processing time based on processing capability 2 to the processing time based on processing capability 1.

However, the above technical solution 1 imposes a limitation on scheduling of the network device, and the network device cannot schedule the PDSCH with a large number of OFDM symbols by using DCI format 1_0. Technical solution 2 has too large scheduling restriction on the network device, and the network device cannot schedule the unicast PDSCH using DCI format 1_0 at all. The technical scheme 3 has too high requirement on the processing capability of the UE, which causes the problem of being incapable of being realized. Technical solution 4 does not process the extra pilot, and has a large impact on the performance of the PDSCH in a low signal to interference plus noise ratio (SINR), high doppler, high spreading delay scenario, for example, the UE is in a high-speed moving scenario, and the like. In addition, the above technical solutions are discussed based on the unicast PDSCH, but for the back-to-back scheduling scenario, if the first PDSCH is a broadcast PDSCH, even if the UE does not need to send the corresponding HARQ-ACK feedback to the PDSCH, the processing time of the broadcast PDSCH by the UE still affects the processing time of the subsequent PDSCH by the UE.

Moreover, in the scenario of back-to-back scheduling, the first PDSCH is processing capability 1 using PDSCH, and the second PDSCH is processing capability 2 using PDSCH. Since the processing time of the second PDSCH is as defined in table 2, which is very short, the processing time of the first PDSCH will have a very large effect on the processing time of the second PDSCH. Even if both the former and latter PDSCHs adopt the processing capability 1 of the PDSCH, the former PDSCH will affect the processing time of the latter PDSCH.

In view of the foregoing technical problems, the present application provides a new resource scheduling method and a communication device, which can solve the technical problem that when there is an extra pilot on a first PDSCH in a back-to-back scheduling scenario, the processing time of the first PDSCH is prevented from affecting the processing time of a second PDSCH.

Fig. 4 shows a flowchart of a method #400 for resource scheduling provided by the present application. The execution subjects of the method are network equipment and UE, and the specific content is shown in FIG. 4.

S410, the network device sends the first DCI, the second DCI, and the first PDSCH and the second PDSCH.

Correspondingly, the UE receives the first DCI, the second DCI, and the first PDSCH from the network device.

It should be understood that the first DCI is for scheduling a first PDSCH and the second DCI is for scheduling a second PDSCH.

S420, the UE determines that the first PDSCH and the second PDSCH satisfy a first predefined condition.

It should be understood that the first predefined condition includes: and the number of time domain symbols spaced between the ending time domain symbol of the first PDSCH and the starting time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first preposed demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second preposed DMRS and does not comprise the additional DMRS.

It should be understood that when the UE determines that the first PDSCH and the second PDSCH satisfy the first predefined condition, it determines that the first PDSCH and the second PDSCH belong to a back-to-back scheduling scenario, in other words, the UE may regard the scheduling of the network device this time as a scheduling unexpected by the UE, and may make a corresponding action based on the determination result.

It should be understood that the first threshold may be predefined or may be network device configured. The first threshold may be 0,1,2, and so on, which is not specifically limited in this application.

S430, skipping decoding processing of the second PDSCH and/or transmitting second HARQ-ACK information corresponding to the second PDSCH.

It should be understood that skipping the decoding process for the second PDSCH may be understood as the terminal device not decoding the second PDSCH, and may also be understood as not processing the second PDSCH, including not performing other processes such as channel estimation process, demodulation process, etc. It may also be understood that no receive operation is performed on the second PDSCH. The description is unified herein and will not be further described.

It should be appreciated that for the back-to-back scheduling scenario described above, the UE may skip the decoding process for the second PDSCH and/or send the second HARQ-ACK information corresponding to the second PDSCH.

As one possible implementation, the first DCI is DCI format 1_0 or DCI format 1 _u1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

As a possible implementation manner, the cyclic redundancy check code (CRC) of DCI format 1_0 is scrambled by a cell-radio network temporary identifier (C-RNTI), a configured scheduling radio network temporary identifier (CS-RNTI), or a modulation and coding scheme cell radio network temporary identifier (MCS-C-RNTI).

As a possible implementation, the HARQ-ACK information comprises a NACK, wherein a 0 value of the HARQ-ACK information corresponds to the NACK.

It is to be understood that the ending time domain symbol of the first PDSCH precedes the starting time domain symbol of the second PDSCH, with no third PDSCH between the first and second PDSCH.

The UE determines that the scheduling of the first PDSCH and the second PDSCH belongs to a back-to-back scheduling scenario by determining that the first PDSCH and the second PDSCH satisfy the first predefined condition, so that corresponding actions can be performed, for example, skipping a decoding process of the second PDSCH and/or sending second HARQ-ACK information.

Fig. 5 shows a flowchart of a method #500 for resource scheduling provided in the present application. The execution subjects of the method are network equipment and UE, and the specific content is shown in FIG. 5.

S510, the network device sends the first DCI, the second DCI, and the first PDSCH and the second PDSCH.

The second DCI includes a slot offset parameter indicating that the number of interval slots between a slot in which the terminal device sends second HARQ-ACK information corresponding to the second PDSCH and a slot in which the second PDSCH is located is N, where N is a positive integer. The slot offset parameter may be a PDSCH-to-HARQ _ feedback timing indicator field in the second DCI.

S520, the UE determines that N is less than or equal to a predefined second threshold.

It should be understood that, when the UE determines that the number of the interval slots between the slot where the second HARQ-ACK information is fed back and the slot where the second PDSCH is located is smaller than the predefined second threshold based on the slot offset parameter in the second DCI, it determines that the processing on the second PDSCH cannot be completed within the specified processing time, and at this time, the UE can take corresponding actions.

It should be understood that the second threshold may be predefined or configured by the network device, and the second threshold may be 0,1,2, and so on, which is not specifically limited in this application.

S530, skipping the decoding process of the second PDSCH and/or sending the second HARQ-ACK information.

It should be appreciated that the UE may skip the decoding process for the second PDSCH and/or send the second HARQ-ACK information to avoid failing to process the second PDSCH within the specified processing time frame.

As a possible implementation, the CRC of DCI format 1 _u0 is scrambled with C-RNTI or CS-RNTI or MCS-C-RNTI.

And the UE determines that the number of interval time slots between the time slot in which the second HARQ-ACK information is fed back and the time slot in which the second PDSCH is located is less than a predefined second threshold value based on the time slot offset parameter in the second DCI, so that corresponding actions can be performed. For example, a decoding process for the second PDSCH is skipped, and/or second HARQ-ACK information is transmitted.

Fig. 6 shows a flowchart of a method #600 for resource scheduling provided in the present application. The execution subjects of the method are network equipment and UE, and the specific content is shown in FIG. 6.

S610, it is determined that the first PDSCH and the second PDSCH satisfy a second predefined condition.

It is to be understood that the second predefined condition comprises: and the number of interval time domain symbols between the ending time domain symbol of the first PDSCH and the starting time domain symbol of the second PDSCH is greater than or equal to a second threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS.

It should be understood that the network device determines or performs scheduling of the PDSCH by based on the UE's processing time or processing capabilities of the PDSCH.

Specifically, if the network device determines that the number of time domain symbols spaced between the end time domain symbol of the first PDSCH and the start time domain symbol of the second PDSCH is greater than or equal to a first threshold, and the first PDSCH further includes the first pre-DMRS and at least one first additional DMRS, and the second PDSCH only includes the second pre-DMRS, and does not include the additional DMRS, the network device determines that the first PDSCH does not affect the processing time of the second PDSCH, and the network device can normally schedule the first PDSCH and the second PDSCH.

It should be understood that the first threshold may be predefined or configured by the network device, and the first threshold may be 0,1,2, and so on, which is not specifically limited in this application.

S620, transmit the first DCI, the second DCI, the first PDSCH, and the second PDSCH.

Correspondingly, the UE receives the first DCI, the second DCI, the first PDSCH and the second PDSCH.

It should be appreciated that the network device is able to send the first PDSCH and the second PDSCH to the UE after determining that the first PDSCH does not impact the processing time of the second PDSCH.

It is to be understood that the first DCI is for scheduling a first PDSCH and the second DCI is for scheduling a second PDSCH.

Note that, between the first PDSCH and the second PDSCH, there is no PDSCH for the network device to transmit to other UEs.

S630, the first HARQ-ACK information and the second HARQ-ACK information are sent.

Correspondingly, the network equipment receives the first HARQ-ACK information and the second HARQ-ACK information.

It is to be understood that the first HARQ-ACK information corresponds to the first PDSCH and the second HARQ-ACK information corresponds to the second PDSCH.

It should be understood that the UE transmits first HARQ-ACK information corresponding to the first PDSCH and second HARQ-ACK information corresponding to the second PDSCH to the network device on PUCCH resources on time domain resources or time domain positions specified by the first DCI and the second DCI, respectively, by receiving the first DCI and the second DCI.

It should be appreciated that the UE may send the first HARQ-ACK information and the second HARQ-ACK information to the network device, so as to facilitate the network device to determine that the UE has completed processing the first PDSCH and the second PDSCH correctly, and then prepare for subsequent scheduling of PDSCH resources.

The network equipment determines or judges that the first PDSCH and the second PDSCH meet the second predefined condition, and the network equipment can normally schedule the first PDSCH and the second PDSCH, so that in a back-to-back scheduling scene, when extra pilot frequency exists in the first PDSCH and the extra pilot frequency does not exist in the second PDSCH, the influence of the first PDSCH on the processing time of the second PDSCH is avoided, and the communication efficiency can be improved.

Fig. 7 shows a flowchart of a method #700 for resource scheduling provided by the present application. The execution subjects of the method are network equipment and UE, and the specific content is shown in FIG. 7.

S710, it is determined that the first PDSCH and the second PDSCH satisfy a first predefined condition.

It should be understood that the first predefined condition includes: the number of time domain symbols spaced between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS.

It should be understood that the network device determines that the first predefined condition is satisfied between the first PDSCH and the second PDSCH, and the network device needs to adjust the content of the second DCI for scheduling the second PDSCH, for example, the second DCI includes a slot offset parameter to avoid the influence of the additional pilot of the first PDSCH on the processing time of the second PDSCH, for example, the network device schedules the UE to transmit HARQ-ACK information corresponding to the second PDSCH over a slot interval N slots from the second PDSCH, where N may be greater than a protocol predefined value, for example, the predefined value is 2, so that the influence of the first PDSCH on the processing time of the second PDSCH can be avoided.

S720, transmitting the first DCI, the second DCI, the first PDSCH, and the second PDSCH.

It should be understood that a slot offset parameter is included in the second PDSCH, where the slot offset parameter is used to indicate that the number of time slots between the time slot in which the UE sends the second HARQ-ACK information corresponding to the second PDSCH and the time slot in the second PDSCH is N, N is greater than or equal to a predefined second threshold, and N is a positive integer. Illustratively, the threshold is 2, meaning that N is greater than or equal to 2.

And S730, sending the first HARQ-ACK information and the second HARQ-ACK information.

It should be understood that the UE transmits the first HARQ-ACK information corresponding to the first PDSCH and the second HARQ-ACK information corresponding to the second PDSCH to the network device on the PUCCH resources on the time domain resources or the time domain positions specified by the first DCI and the second DCI by receiving the first DCI and the second DCI.

It should be appreciated that the UE may send the first HARQ-ACK information and the second HARQ-ACK information to the network device, so as to facilitate the network device to determine that the UE has completed processing the first PDSCH and the second PDSCH correctly, and then prepare for scheduling PDSCH resources subsequently.

The network equipment determines that the first PDSCH and the second PDSCH meet a first predefined condition, so that a time slot offset parameter is added in the second DCI and used for indicating the UE to send a time slot of second HARQ-ACK information corresponding to the second PDSCH.

Fig. 8 shows a flowchart of a method #800 for resource scheduling according to the present application. The main execution bodies of the method are a network device and a UE, and the specific content is shown in FIG. 8.

S810, it is determined that the first PDSCH and the second PDSCH satisfy a first predefined condition.

It should be understood that the network device determines or performs scheduling of the PDSCH by determining or performing scheduling based on the UE's processing time or processing capability of the PDSCH.

Specifically, if the network device determines that the number of time domain symbols spaced between the end time domain symbol of the first PDSCH and the start time domain symbol of the second PDSCH is less than or equal to the first threshold, and the first PDSCH further includes the first pre-DMRS and the at least one first additional DMRS, and the second PDSCH only includes the second pre-DMRS, and does not include the additional DMRS, the network device determines that the first PDSCH may affect the processing time of the second PDSCH.

It should be noted that the first PDSCH and the second PDSCH are for the same UE, and there is no other PDSCH transmitted to the UE between the first PDSCH and the second PDSCH.

S820, the first DCI, the third DCI, the first PDSCH, and the third PDSCH are transmitted.

Correspondingly, the UE receives the first DCI, the third DCI, the first PDSCH and the third PDSCH.

The network equipment sends the first PDSCH and the third PDSCH to the UE after determining that the first PDSCH can affect the processing time of the second PDSCH. The number of time domain symbols spaced between the ending time domain symbol of the first PDSCH and the starting time domain symbol of the third PDSCH is K, where K may be greater than or equal to the first threshold.

As a possible implementation manner, the network device does not send the second PDSCH to the UE, thereby avoiding the first PDSCH from affecting the processing time of the second PDSCH.

It is to be understood that the first DCI is for scheduling a first PDSCH, the second DCI is for scheduling a second PDSCH, and the third DCI is for scheduling a third PDSCH.

Note that there is no other PDSCH between the first PDSCH and the second PDSCH. Meanwhile, it should be understood that, in the embodiment of the present application, the first PDSCH, the second PDSCH and other PDSCHs occurring subsequently are scheduled for the same UE, and other PDSCHs that schedule other UEs are not doped.

And S830, the first HARQ-ACK information and the third HARQ-ACK information are sent.

Correspondingly, the network equipment receives the first HARQ-ACK information and the third HARQ-ACK information.

It is to be understood that the first HARQ-ACK information corresponds to the first PDSCH and the third HARQ-ACK information corresponds to the third PDSCH.

It should be understood that the UE transmits the first HARQ-ACK information corresponding to the first PDSCH and the third HARQ-ACK information corresponding to the third PDSCH to the network device on the PUCCH resources on the time domain resources or the time domain positions specified by the first DCI and the third DCI by receiving the first DCI and the third DCI.

It should be appreciated that the UE may send the first HARQ-ACK information and the third HARQ-ACK information to the network device, so as to facilitate the network device to determine that the UE has completed processing the first PDSCH and the third PDSCH, and then prepare for subsequent scheduling of PDSCH resources.

As a possible implementation manner, after determining that the first PDSCH and the second PDSCH satisfy the first predefined condition, the network device increases the number of time domain symbols spaced between the ending time domain symbol of the first PDSCH and the starting time domain symbol of the second PDSCH by adjusting the time-frequency resource positions of the first PDSCH and/or the second PDSCH, for example, by shifting forward the time domain symbols occupied by the first PDSCH and/or shifting backward the time domain symbols occupied by the second PDSCH, thereby avoiding the influence of the first PDSCH on the processing time of the second PDSCH.

As a possible implementation, the number K of time domain symbols spaced between the ending time domain symbol of the first PDSCH and the starting time domain symbol of the third PDSCH is related to the DMRS positions of the first PDSCH and the third PDSCH, for example, the number of OFDM symbols between the last DMRS of the first PDSCH and the third PDSCH; or the number of OFDM symbols spaced between the last DMRS of the first PDSCH and the first DMRS of the third PDSCH; or, the number of OFDM symbols spaced between the last DMRS of the first PDSCH and the first OFDM of the third PDSCH.

As a possible implementation manner, when a value of the number K of time domain symbols spaced between the end time domain symbol of the first PDSCH and the start time domain symbol of the third PDSCH is associated with the positions of the DMRSs of the first PDSCH and the third PDSCH, the last DMRS of the first PDSCH is configured by the network device or actually transmitted by the network device.

As a possible implementation manner, the aforementioned third PDSCH may be obtained by adjusting the time-frequency resource location of the first PDSCH and/or the second PDSCH.

As a possible implementation, the CRC of DCI format 1 _u0 is scrambled by C-RNTI or CS-RNTI or MCS-C-RNTI.

The network equipment can change or adjust the sequence or content of the PDSCH sent to the UE by determining that the first PDSCH and the second PDSCH meet a first predefined condition, so that the problem that in a back-to-back scheduling scene, when extra pilot frequency exists in the first PDSCH and the extra pilot frequency does not exist in the second PDSCH, the processing time of the second PDSCH is prevented from being influenced by the first PDSCH, and the communication efficiency can be improved.

The communication device in the present application will be described with reference to the drawings.

Fig. 9 is a schematic block diagram of a communication device 900 provided herein. As shown, the communication device 900 may include: a transceiving unit 910 and a processing unit 920.

In a possible design, the communication apparatus 900 may be a UE in the foregoing method embodiment, and may also be a chip for implementing the function of the UE in the foregoing method embodiment.

It should be understood that the communication apparatus 900 may correspond to a UE in the method embodiment of the present application, and the communication apparatus 900 may include means for performing the method performed by the UE in the foregoing method embodiment.

It should be understood that each unit and other operations and/or functions described above in the communication apparatus 900 are respectively for implementing the corresponding flows in fig. 4 to 8.

It should be understood that, the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and are not described herein again for brevity.

It should be understood that the above-mentioned contents are only exemplary, and the communication apparatus 900 can also implement other UE-related steps, actions or methods in the above-mentioned method embodiments, and details are not described herein again.

In another possible design, the communication apparatus 900 may be the network device in the foregoing method embodiment, and may also be a chip for implementing the functions of the network device in the foregoing method embodiment.

It should be understood that the communication apparatus 900 may correspond to a network device in the method embodiment of the present application, and the communication apparatus 900 may include a unit for executing the method executed by the network device in the method embodiment described above.

It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

It is further understood that the transceiving unit 910 in the communication apparatus 900 may correspond to the transceiver 1020 in the communication device 1000 shown in fig. 10, and the processing unit 920 in the communication apparatus 900 may correspond to the processor 1010 in the communication device 1000 shown in fig. 10.

It should also be understood that when the communication device 900 is a chip, the chip includes a transceiver unit and a processing unit. The transceiving unit can be an input/output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.

The transceiving unit 910 is configured to implement transceiving operation of signals of the communication apparatus 900, and the processing unit 920 is configured to implement processing operation of signals of the communication apparatus 900.

Optionally, the communication device 900 further comprises a storage unit 930, the storage unit 930 being configured to store instructions.

Fig. 10 is a schematic block diagram of a communication device 1000 provided in an embodiment of the present application. As shown, the communication device 1000 includes: at least one processor 1010 and a transceiver 1020. The processor 1010 is coupled to the memory for executing instructions stored in the memory to control the transceiver 1020 to transmit signals and/or receive signals.

Optionally, the communications device 1000 also includes a memory 1030 to store instructions.

It will be appreciated that the processor 1010 and memory 1030 described above may be combined into a single processing device, with the processor 1010 being configured to execute program code stored in the memory 1030 to implement the functions described above. In particular implementations, the memory 1030 may be integrated with the processor 1010 or separate from the processor 1010.

It is also understood that the transceiver 1020 may include a receiver (or, alternatively referred to as a receiver) and a transmitter (or, alternatively referred to as a transmitter).

The transceiver 1020 may further include an antenna, and the number of antennas may be one or more. The transceiver 1020 may be a communication interface or interface circuit.

When the communication device 1000 is a chip, the chip includes a transceiving unit and a processing unit. The transceiving unit can be an input/output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.

The embodiment of the application also provides a processing device which comprises a processor and an interface. The processor may be adapted to perform the method of the above-described method embodiments.

It should be understood that the processing means may be a chip. For example, the processing device may be a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other integrated chips.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and combines hardware thereof to complete the steps of the method. To avoid repetition, it is not described in detail here.

Embodiments of the present application also provide a computer-readable storage medium on which computer instructions for implementing the method performed by the network device in the foregoing method embodiments are stored.

For example, the computer program, when executed by a computer, causes the computer to implement the method performed by the network device in the above-described method embodiments.

Embodiments of the present application also provide a computer-readable storage medium on which computer instructions for implementing the method performed by the UE in the foregoing method embodiments are stored.

For example, the computer program, when executed by a computer, causes the computer to implement the method performed by the UE in the above-described method embodiments.

Embodiments of the present application also provide a computer program product containing instructions, where the instructions, when executed by a computer, cause the computer to implement the method performed by the UE in the above method embodiments.

Embodiments of the present application further provide a computer program product containing instructions, where the instructions, when executed by a computer, cause the computer to implement the method performed by the network device in the foregoing method embodiments.

The embodiment of the present application further provides a chip system, and a processor, configured to call and run a computer program from a memory, so that a communication device in which the chip system is installed executes a method that should be executed by a UE, or executes a method that should be executed by a network device.

It is clear to those skilled in the art that for convenience and brevity of description, any of the explanations and advantages provided above for relevant contents of any of the communication apparatuses may refer to the corresponding method embodiments provided above, and no further description is provided herein.

The embodiment of the present application does not particularly limit a specific structure of an execution subject of the method provided by the embodiment of the present application, as long as communication can be performed by the method provided by the embodiment of the present application by running a program in which codes of the method provided by the embodiment of the present application are recorded. For example, an execution main body of the method provided by the embodiment of the present application may be a UE or a network device, or a functional module capable of invoking a program and executing the program in the UE or the network device.

Various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media.

The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. The available media (or computer-readable media) may include, for example but not limited to: magnetic or magnetic storage devices (e.g., floppy disks, hard disks (e.g., removable hard disks), magnetic tapes), optical media (e.g., compact disks, CD's, digital Versatile Disks (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROM), cards, sticks, or key drives, etc.), or semiconductor media (e.g., solid State Disks (SSD), usb disks, read-only memories (ROMs), random Access Memories (RAMs), etc.) that may store program code.

Various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, but is not limited to: wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

It will be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM). For example, RAM can be used as external cache memory. By way of example and not limitation, RAM may include the following forms: static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced Synchronous DRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and direct bus RAM (DR RAM).

It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) may be integrated into the processor.

It should also be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

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

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the scheme provided by the application.

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

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. The procedures or functions described in accordance with the embodiments of the application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. For example, the computer may be a personal computer, a server, or a network appliance, etc. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). With regard to the computer-readable storage medium, reference may be made to the above description.

It should be understood that the numbers "first" and "second" \8230inthe embodiments of the present application are only used for distinguishing different objects, such as different network devices, and do not limit the scope of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

It should also be understood that, in the present application, "when 8230a," "if," and "if" all refer to that the network element performs corresponding processing under some objective condition, and do not limit the time, do not require a judgment action when the network element is implemented, and do not mean that other limitations exist.

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

It should also be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for resource scheduling, comprising:

receiving first Downlink Control Information (DCI) and second DCI, wherein the first DCI is used for scheduling a first Physical Downlink Shared Channel (PDSCH), and the second DCI is used for scheduling a second PDSCH;

determining that the first PDSCH and the second PDSCH satisfy a first predefined condition, the first predefined condition including: a number of interval time domain symbols between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS;

skipping a decoding process for the second PDSCH and/or transmitting second hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the second PDSCH,

wherein an ending time domain symbol of the first PDSCH precedes a starting time domain symbol of the second PDSCH, and there is no third PDSCH between the first PDSCH and the second PDSCH.

2. The method of claim 1,

the first DCI is DCI format 1_0 or DCI format 1_1 or DCI format 1_2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

3. The method according to claim 1 or 2,

the cyclic redundancy check code CRC of the DCI format 1_0 is scrambled by a cell radio network temporary identifier C-RNTI or a configured scheduling radio network temporary identifier CS-RNTI or a modulation and coding mode cell radio network temporary identifier MCS-C-RNTI.

4. The method according to any one of claims 1 to 3,

the HARQ-ACK information comprises NACK, and the 0 value of the HARQ-ACK information corresponds to the NACK.

5. A method for resource scheduling, comprising:

determining that a first Physical Downlink Shared Channel (PDSCH) and a second PDSCH sent to a terminal device meet a second predefined condition, wherein the second predefined condition comprises: a number of interval time domain symbols between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is greater than or equal to a first threshold, the first PDSCH includes a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, the second PDSCH includes a second pre-DMRS and does not include an additional DMRS;

transmitting first downlink control information DCI, second DCI, the first PDSCH, and the second PDSCH,

wherein the first DCI is used to schedule the first PDSCH and the second DCI is used to schedule the second PDSCH,

wherein the ending time domain symbol of the first PDSCH is before the starting time domain symbol of the second PDSCH, and no third PDSCH is sent to the terminal device between the first PDSCH and the second PDSCH.

6. The method of claim 5,

the first DCI is DCI format 1_0 or DCI format 1_1 or DCI format 1 _u2, and the second DCI is DCI format 1 _u1 or DCI format 1 _u2.

7. The method of claim 5 or 6,

8. A communication device, comprising:

a transceiver unit, configured to receive first downlink control information DCI and second DCI, where the first DCI is used to schedule a first physical downlink shared channel PDSCH, and the second DCI is used to schedule a second PDSCH;

a processing unit configured to determine that the first PDSCH and the second PDSCH satisfy a first predefined condition, where the first predefined condition includes: the number of interval time domain symbols between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is less than or equal to a first threshold, the first PDSCH comprises a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, and the second PDSCH comprises a second pre-DMRS and does not comprise the additional DMRS;

the processing unit is configured to skip the decoding process of the second PDSCH, and/or the transceiver is configured to transmit second HARQ-ACK information corresponding to the second PDSCH,

9. The apparatus of claim 8,

10. The apparatus according to claim 8 or 9,

11. The apparatus according to any one of claims 8 to 10,

12. A communication device, comprising:

a processing unit, configured to determine that a first physical downlink shared channel PDSCH and a second PDSCH sent to a terminal device satisfy a second predefined condition, where the second predefined condition includes: a number of interval time domain symbols between an end time domain symbol of the first PDSCH and a start time domain symbol of the second PDSCH is greater than or equal to a first threshold, the first PDSCH includes a first pre-demodulation reference signal (DMRS) and at least one first additional DMRS, the second PDSCH includes a second pre-DMRS and does not include an additional DMRS;

a transceiving unit configured to transmit first downlink control information DCI, second DCI, the first PDSCH, and the second PDSCH,

wherein the ending time domain symbol of the first PDSCH is before the starting time domain symbol of the second PDSCH, and a third PDSCH which is not sent to the terminal equipment is arranged between the first PDSCH and the second PDSCH.

13. The apparatus of claim 12,

14. The apparatus according to claim 12 or 13,

15. A computer storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform a method of resource scheduling according to any one of claims 1 to 4.

16. A computer storage medium having stored thereon instructions which, when run on a computer, cause the computer to perform a method of resource scheduling according to any one of claims 5 to 7.

17. A computer program product, characterized in that it causes a computer to carry out the method of resource scheduling according to any one of claims 1 to 4, when said computer program product is run on the computer.

18. A computer program product, characterized in that, when the computer program product is run on a computer, it causes the computer to perform the method of resource scheduling according to any of claims 5 to 7.