WO2023011081A1

WO2023011081A1 - Resource scheduling method and communication device

Info

Publication number: WO2023011081A1
Application number: PCT/CN2022/103789
Authority: WO
Inventors: 高飞; 焦淑蓉; 李军
Original assignee: 华为技术有限公司
Priority date: 2021-08-06
Filing date: 2022-07-05
Publication date: 2023-02-09
Also published as: CN115915426A

Abstract

Provided in the present application are a resource scheduling method and a communication device. The method comprises: 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 being less than or equal to a threshold value, wherein the first PDSCH comprises a pre-DMRS and an additional DMRS, and the second PDSCH does not comprise an additional DMRS; and skipping decoding processing for the second PDSCH, and/or sending second HARQ-ACK information of the second PDSCH, wherein there is no third PDSCH between the first PDSCH and the second PDSCH. By means of the present application, a UE determines that a first PDSCH and a second PDSCH satisfy a first predefined condition, such that the effect of the previous PDSCH on the processing time of the next PDSCH can be prevented.

Description

A resource scheduling method and communication device

This application claims the priority of the Chinese patent application filed with the State Intellectual Property Office on August 06, 2021, with the application number 202110903105.8 and the application name "A Resource Scheduling Method and Communication Equipment", the entire contents of which are incorporated herein by reference. Applying.

technical field

The present application relates to the technical field of communication, and more specifically, to a resource scheduling method and a communication device.

Background technique

New radio (new radio, NR) protocol version 15 (release 15, Rel-15) introduces the concept of processing time T _proc,1 of a physical downlink shared channel (PDSCH). The processing time T _proc,1 is defined as starting from the next symbol after the end time domain symbol of PDSCH transmitted by the network device, and before the start time domain symbol of the terminal device starts to transmit the physical uplink control channel (physicaluplink control channel, PUCCH) up to one time domain symbol. The terminal device needs to send hybrid automatic repeat-request acknowledgment (hybrid automatic repeat-request acknowledgment, HARQ-ACK) information corresponding to the PDSCH on the PUCCH resource.

The length of the processing time T _proc,1 is mainly related to an additional demodulation reference signal (additional DMRS). For example, if a PDSCH contains additional pilots, the terminal device needs to start channel estimation after receiving all the pilots, and then start demodulation and decoding. If a PDSCH only includes the first pilot, the terminal device can start channel estimation after receiving the first pilot, so that the processing time T _proc,1 can be shortened.

Back-to-back scheduling (back-to-back scheduling) means that the network device schedules two consecutive PDSCHs. If the previous PDSCH has extra pilots and the latter PDSCH has no extra pilots, the extra pilots included in the previous PDSCH will delay the processing time of the terminal equipment for the latter PDSCH, so that the terminal equipment may not be able to Processing is completed within the time stipulated in the agreement.

Therefore, how to solve the problem of extra pilots in back-to-back scheduling is a technical problem that needs to be solved urgently.

Contents of the invention

The present application provides a resource scheduling method and communication equipment, which can solve the problem of avoiding at least one extra pilot included in the previous PDSCH when there is an extra pilot in the previous PDSCH and no extra pilot in the latter PDSCH in the back-to-back scheduling scenario The processing time of the latter PDSCH is affected, so that the resource scheduling efficiency of the network device can be improved, and the communication efficiency can be improved.

In the first aspect, a resource scheduling method is provided, including: receiving first downlink control information DCI and second DCI, the first DCI is used for scheduling the first physical downlink shared channel PDSCH, and the second DCI is used for scheduling The second PDSCH: determine that the first predefined condition is satisfied between the first PDSCH and the second PDSCH, and the first predefined condition includes: the interval between the end time domain symbol of the first PDSCH and the start time domain symbol of the second PDSCH The number of time-domain symbols is less than or equal to the first threshold, the first PDSCH includes the first pre-demodulation reference signal DMRS and at least one first additional DMRS, the second PDSCH includes the second pre-DMRS, and does not include the additional DMRS; skip Decoding processing on the second PDSCH, and/or, sending the second hybrid automatic repeat request response HARQ-ACK information corresponding to the second PDSCH, wherein the end time domain symbol of the first PDSCH is at the beginning of the second PDSCH Before the time domain symbol, there is no third PDSCH between the first PDSCH and the second PDSCH.

Through the above technical solution, the present application can avoid the impact of the extra pilot included in the previous PDSCH on the processing time of the latter PDSCH, thereby improving the communication efficiency.

With reference to the first aspect, in some implementation manners of the first 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_1 or DCI format 1_2.

With reference to the first aspect, in some implementations of the first aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

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

It should be understood that the above three possible implementations of the first aspect can be combined with each other, for example, the first possible implementation can be combined with the second possible implementation, the first possible implementation can be combined with the third possible implementation combination, etc.

In a second aspect, a resource scheduling method is provided, including: receiving first downlink control information DCI and second DCI, the first DCI is used for scheduling the first physical downlink shared channel PDSCH, and the second DCI is used for scheduling The second PDSCH, the second DCI includes a time slot offset parameter, and the time slot offset parameter is used to indicate when the terminal equipment sends the second hybrid automatic repeat request response HARQ-ACK information corresponding to the second PDSCH The number of time slots spaced between the slot and the time slot of the second PDSCH is N, and N is a positive integer; determine that N is less than or equal to a predefined second threshold; skip the decoding process for the second PDSCH, and/or , to send the second HARQ-ACK information, where the number of time slots between the time slot where the second HARQ-ACK information is located and the time slot where the second PDSCH is located is N, where the end time domain symbol of the first PDSCH is in Before the start time domain symbol of the second PDSCH, there is no third PDSCH between the first PDSCH and the second PDSCH.

With reference to the second aspect, in some implementation manners of the second 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_1 or DCI format 1_2.

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 modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

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

It should be understood that the above three possible implementations of the second aspect can be combined with each other, for example, the first possible implementation can be combined with the second possible implementation, the first possible implementation can be combined with the third possible implementation combination, etc.

In a third aspect, a resource scheduling method is provided, including: determining that the first physical downlink shared channel PDSCH and the second PDSCH sent to the terminal device meet a second predefined condition, and the second predefined condition includes: the first PDSCH The number of time-domain symbols spaced between the end time-domain symbol of the second PDSCH and the start time-domain symbol of the second PDSCH is greater than or equal to the first threshold, and the first PDSCH includes the first pre-demodulation reference signal DMRS and at least one first additional DMRS , the second PDSCH includes the second pre-DMRS, and does not include the additional DMRS; send the first downlink control information DCI, the second DCI, the first PDSCH and the second PDSCH, wherein the first DCI is used to schedule the first PDSCH , the second DCI is used to schedule the second PDSCH, wherein the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no first PDSCH sent to the terminal device between the first PDSCH and the second PDSCH Three PDSCH.

By determining whether the first PDSCH and the second PDSCH meet the second predefined condition by the network device, the network device can normally schedule the first PDSCH and the second PDSCH, so that this application can realize that in the back-to-back scheduling scenario, when the first PDSCH has additional When the pilot frequency is used and there is no additional pilot frequency in the second PDSCH, the impact of the first PDSCH on the processing time of the second PDSCH is avoided, thereby improving communication efficiency.

With reference to the third aspect, in some implementation manners of the third 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_1 or DCI format 1_2.

With reference to the fourth aspect, in some implementations of the fourth aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

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

It should be understood that the above three possible implementations of the third aspect can be combined with each other, for example, the first possible implementation can be combined with the second possible implementation, the first possible implementation can be combined with the third possible implementation combination, etc.

In a fourth aspect, a resource scheduling method is provided, including: determining that the first physical downlink control channel PDSCH and the second PDSCH sent to the terminal device meet a first predefined condition, and the first predefined condition includes: the first PDSCH The number of time domain symbols spaced between the end time domain symbol of the second PDSCH and the start time domain symbol of the second PDSCH is less than or equal to the first threshold, and the first PDSCH includes the first pre-demodulation reference signal DMRS and at least one first additional DMRS , the second PDSCH includes the second pre-DMRS, does not include the additional DMRS; transmits the first downlink control information DCI, the second DCI, the first PDSCH and the second PDSCH, wherein the second DCI includes a time slot offset parameter, The time slot offset parameter is used to indicate the interval between the time slot where the terminal equipment sends the second hybrid automatic repeat request response HARQ-ACK information corresponding to the second PDSCH and the time slot where the second PDSCH is located The number is N, where 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, where the first The end time domain symbol of the PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH sent to the terminal device between the first PDSCH and the second PDSCH.

After the network device determines or judges that the first PDSCH and the second PDSCH meet the first predefined condition, the network device can normally schedule the first PDSCH and the second PDSCH, so that this application can realize that in the back-to-back scheduling scenario, when the first PDSCH exists When there is no additional pilot in the second PDSCH, the influence of the first PDSCH on the processing time of the second PDSCH is avoided, thereby improving communication efficiency.

With reference to the fourth aspect, in some implementation manners of the fourth 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_1 or DCI format 1_2.

In a fifth aspect, a resource scheduling method is provided, including: determining that the first physical downlink control channel PDSCH and the second PDSCH sent to the terminal device meet a first predefined condition, and the first predefined condition includes: the first PDSCH The number of time domain symbols spaced between the end time domain symbol of the second PDSCH and the start time domain symbol of the second PDSCH is less than or equal to the first threshold, and the first PDSCH includes the first pre-demodulation reference signal DMRS and at least one first additional DMRS , the second PDSCH includes the second pre-DMRS and does not include the additional DMRS; transmits the first downlink control information DCI, the third DCI, the first PDSCH and the third PDSCH, wherein the first DCI is used to schedule the first PDSCH , the third DCI is used to schedule the third PDSCH, wherein the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no information sent to the terminal device between the first PDSCH and the second PDSCH The fourth PDSCH, wherein the interval between the end time domain symbol of the first PDSCH and the start 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 some implementation manners of the fifth aspect, the method further includes: not sending the second PDSCH.

With reference to the fifth aspect, in some implementation manners of the fifth 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_1 or DCI format 1_2.

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 modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

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

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

In a sixth aspect, a resource communication device is provided, including: a transceiver unit, configured to receive first downlink control information DCI and second DCI, the first DCI is used for scheduling the first physical downlink shared channel PDSCH, and the second DCI It is used to schedule the second PDSCH; the processing unit is used to determine that a first predefined condition is satisfied between the first PDSCH and the second PDSCH, and the first predefined condition includes: the end time domain symbol of the first PDSCH and the second PDSCH The number of time-domain symbols spaced between the starting time-domain symbols is less than or equal to the first threshold, the first PDSCH includes the first preamble demodulation reference signal DMRS and at least one first additional DMRS, and the second PDSCH includes the second preamble DMRS, excluding additional DMRS; processing unit, used to skip the decoding process of the second PDSCH, and/or, the transceiver unit, used to send the second hybrid automatic repeat request response HARQ-ACK corresponding to the second PDSCH information, wherein the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH between the first PDSCH and the second PDSCH.

With reference to the sixth aspect, in some implementation manners of the sixth 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_1 or DCI format 1_2.

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 modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

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

It should be understood that the above three possible implementations of the sixth aspect can be combined with each other, for example, the first possible implementation can be combined with the second possible implementation, the first possible implementation can be combined with the third possible implementation combination, etc.

In a seventh aspect, a communication device is provided, including: a transceiver unit, configured to receive first downlink control information DCI and second DCI, the first DCI is used to schedule the first physical downlink shared channel PDSCH, and the second DCI is For scheduling the second PDSCH, the second DCI includes a time slot offset parameter, and the time slot offset parameter is used to instruct the terminal device to send the second hybrid automatic repeat request response HARQ-ACK information corresponding to the second PDSCH The number of time slots spaced between the time slot where the time slot where the second PDSCH is located and the time slot where the second PDSCH is located is N, and N is a positive integer; it is determined that N is less than or equal to the predefined second threshold; the processing unit is used to skip the second PDSCH The decoding processing, and/or, the transceiver unit, configured to send the second HARQ-ACK information, wherein, the number of time slots between the time slot where the second HARQ-ACK information is located and the time slot where the second PDSCH is located is N, where the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH between the first PDSCH and the second PDSCH.

With reference to the seventh aspect, in some implementation manners of the seventh 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_1 or DCI format 1_2.

With reference to the seventh aspect, in some implementations of the seventh aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

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

It should be understood that the above three possible implementations of the seventh aspect can be combined with each other, for example, the first possible implementation can be combined with the second possible implementation, the first possible implementation can be combined with the third possible implementation combination, etc.

In an eighth aspect, a communication device is provided, including: a processing unit configured to determine that the first physical downlink shared channel PDSCH and the second PDSCH sent to the terminal device meet a second predefined condition, and the second predefined condition includes: 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 the first threshold, and the first PDSCH includes a first pre-demodulation reference signal DMRS and at least one first PDSCH An additional DMRS, the second PDSCH includes the second pre-DMRS, and does not include the additional DMRS; the transceiver unit is used to send the first downlink control information DCI, the second DCI, the first PDSCH and the second PDSCH, wherein the first The DCI is used to schedule the first PDSCH, and the second DCI is used to schedule the second PDSCH, wherein the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and the distance between the first PDSCH and the second PDSCH There is no third PDSCH sent to the terminal equipment during the interval.

With reference to the eighth aspect, in some implementation manners 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_1 or DCI format 1_2.

With reference to the eighth aspect, in some implementations of the eighth aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

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

It should be understood that the above three possible implementations of the eighth aspect can be combined with each other, for example, the first possible implementation can be combined with the second possible implementation, the first possible implementation can be combined with the third possible implementation combination, etc.

In a ninth aspect, a communication device is provided, including: a processing unit configured to determine that the first physical downlink control channel PDSCH and the second PDSCH sent to the terminal device meet a first predefined condition, and the first predefined condition includes: 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 includes a first pre-demodulation reference signal DMRS and at least one first PDSCH An additional DMRS, the second PDSCH includes the second pre-DMRS and does not include the additional DMRS; the transceiver unit is used to send the first downlink control information DCI, the second DCI, the first PDSCH and the second PDSCH, wherein the second DCI Including the time slot offset parameter, the time slot offset parameter is used to indicate the time slot where the terminal equipment sends the second hybrid automatic repeat request response HARQ-ACK information corresponding to the second PDSCH and the location of the second PDSCH The number of time slots spaced between time slots is N, where 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 The second PDSCH, wherein the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH sent to the terminal device between the first PDSCH and the second PDSCH.

With reference to the ninth aspect, in some implementation manners 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_1 or DCI format 1_2.

With reference to the ninth aspect, in some implementations of the ninth aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

It should be understood that the above two possible implementations of the ninth aspect can be combined with each other, for example, the first possible implementation can be combined with the second possible implementation, the first possible implementation can be combined with the third possible implementation combination, etc.

In a tenth aspect, a communication device is provided, including: a processing unit configured to determine that the first physical downlink control channel PDSCH and the second PDSCH sent to the terminal device meet a first predefined condition, and the first predefined condition includes: 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 includes a first pre-demodulation reference signal DMRS and at least one first PDSCH An additional DMRS, the second PDSCH includes the second pre-DMRS, and does not include the additional DMRS; the transceiver unit is used to send the first downlink control information DCI, the third DCI, the first PDSCH and the third PDSCH, wherein the first The DCI is used to schedule the first PDSCH, and the third DCI is used to schedule the third PDSCH, wherein the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and the distance between the first PDSCH and the second PDSCH The fourth PDSCH that is not sent to the terminal device during the period, wherein the interval between the end time domain symbol of the first PDSCH and the start 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 implementation manners of the tenth aspect, the transceiving unit is further configured not to send the second PDSCH.

With reference to the tenth aspect, in some implementation manners 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_1 or DCI format 1_2.

With reference to the tenth aspect, in some implementations of the tenth aspect, the cyclic redundancy check code CRC of the DCI format 1_0 is modulated by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI It is scrambled by MCS-C-RNTI and the encoding method of the cell wireless network temporary identifier.

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

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

In an eleventh aspect, there is provided a computer storage medium, which stores instructions, and when the instructions are run on a computer, the computer executes the computer as described in the first aspect and any possible implementation manner of the first aspect. The resource scheduling method; or, the computer executes the resource scheduling method 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, which stores instructions, and when the instructions are run on a computer, the computer executes the computer as described in the third aspect and any possible implementation manner of the third aspect. The resource scheduling method; or, the computer executes the resource scheduling method as described in the fourth aspect and any possible implementation manner of the fourth aspect; or, the computer executes the resource scheduling method as described in the fifth aspect and the fifth aspect The resource scheduling method described in any possible implementation manner of .

In a thirteenth aspect, a computer program product is provided. When the computer program product runs on a computer, the computer executes the resources described in the first aspect and any possible implementation manner of the first aspect. A scheduling method; or, performing the resource scheduling method described in the second aspect and any possible implementation manner of the second aspect.

In a fourteenth aspect, a computer program product is provided. When the computer program product runs on a computer, the computer executes the resources described in the third aspect and any possible implementation manner of the third aspect. A scheduling method; or, the resource scheduling method as described in the fourth aspect and any possible implementation of the fourth aspect; or, as described in the fifth aspect and any possible implementation of the fifth aspect method of resource scheduling.

Description of drawings

FIG. 1 is a schematic diagram of an application scenario provided by this application.

Fig. 2 is a schematic diagram of scheduling PDSCH resources provided by this application.

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

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

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

Fig. 6 is a schematic flowchart of another resource scheduling method provided by the present application.

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

Fig. 8 is a schematic flowchart of still another resource scheduling method provided by the present application.

Fig. 9 is a schematic block diagram of a communication device provided in the present application.

Fig. 10 is a schematic structural block diagram of another communication device provided by the present application.

Detailed ways

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

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, global system of mobile communication (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) Communication System, Fifth Generation (5G) system or new radio (new radio, NR), and future communication systems, such as the sixth generation (6th generation, 6G) system, etc.

The terminal device in the embodiment of the present application may be called a terminal, which may be a device with wireless transceiver function, which may be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it may also be deployed on water (such as ships, etc.) ; Can also be deployed in the air (for example, on aircraft, balloons and satellites, etc.). The terminal device may be user equipment (user equipment, UE), where the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device with a wireless communication function. Exemplarily, the UE may be a mobile phone (mobile phone), a tablet computer or a computer with a wireless transceiver function. The terminal device can also be a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a smart Wireless terminals in power grids, wireless terminals in smart cities, wireless terminals in smart homes, etc. In the embodiment of the present application, the device for realizing the function of the terminal may be a terminal; it may also be a device capable of supporting the terminal to realize the function, such as a chip system, and the device may be installed in the terminal. In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices. In the technical solutions of the embodiments of the present application, the technical solutions of the embodiments of the present application are described by taking the terminal as an example in which the device for realizing the functions of the terminal is a terminal, and the terminal is a UE.

The network device in the embodiment of the present application includes an access network device, such as a base station (base station, BS), and the BS may be a device deployed in a wireless access network and capable of performing wireless communication with a terminal. Among them, the base station may have various forms, such as a macro base station, a micro base station, a relay station, and an access point. Exemplarily, the base station involved in the embodiment of the present application may be a base station in 5G or an evolved base station (Evolved Node B, eNB) in LTE, where the base station in 5G may also be called a transmission reception point (transmission reception point) , TRP) or 5G base station (next-generation node B, gNB). In the embodiment of the present application, the device for realizing the function of the network device may be a network device; it may also be a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device. In the technical solution of the embodiment of the present application, the technical solution of the embodiment of the present application is described by taking the apparatus for realizing the function of the network device as the network device and taking the network device as the base station as an example.

In this embodiment of the present application, the term "wireless communication" may also be referred to as "communication" for short, 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 applicable to the technical solution of the present application. Specifically as shown in Figure 1, the communication system #100 includes a network device #101 and a UE#102, the network device #101 can be any of the network devices listed above, and the UE#102 can be the terminal device listed above any of the.

In the communication system #100 shown in Figure 1, the transmission between the network equipment #101 and UE#102 can be realized through radio waves, or through visible light, laser, infrared, optical fiber and other transmission media. The application does not specifically limit this.

FIG. 2 shows a schematic diagram of scheduling PDSCH resources provided by this application. Specifically shown in Figure 2.

Specifically, the network device schedules PDSCH resources through a physical downlink control channel (physical downlink control channel, PDCCH), and will include control information in the PDCCH, for example, downlink control information (downlink control information, DCI), for notifying the UE Related information on the PUCCH carrying the HARQ-ACK information corresponding to the PDSCH. Among them, the UE cannot send the HARQ-ACK information corresponding to the PDSCH before the initial time domain symbol of the PUCCH resource, otherwise, it cannot complete the processing of the PDSCH within the processing time T _proc,1 , and thus cannot complete the processing indicated by the network device. The HARG-ACK information corresponding to the PDSCH is sent on the PUCCH resource of the PDSCH.

It should be understood that there is a positive correlation between the length of the processing time T _proc,1 and the two parameters N ₁ and d _1,1 . Wherein, N ₁ is a set of values predefined by the protocol, which are related to the two parameters of UE capability reporting information and subcarrier spacing. Table 1 shows N ₁ of the PDSCH corresponding to the UE's PDSCH processing capability 1 (capability 1, Cap1) (or, N ₁ can also be regarded as the processing time T _proc,1 ), and Table 2 shows the UE's PDSCH processing capability 2 N ₂ of PDSCH corresponding to (capability 2, Cap2) (same as before). The specific content is shown in Table 1 and Table 2.

Table 1

Table 2

It should be understood that the number of orthogonal frequency division multiplexing (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. The processing time is shorter, therefore, the network device can be closer to the time-domain symbol position of the corresponding PDSCH when scheduling the corresponding PUCCH. The number of OFDM symbols in Table 2 is smaller than the number of OFDM symbols in Table 1, which indicates that when the UE has a processing capability of 2, the processing time for PDSCH is shorter, but this requires higher processing capabilities of the UE. Therefore, the network The device may be closer to the time-domain symbol position of the corresponding PDSCH when scheduling the corresponding PUCCH.

Generally speaking, after N ₁ is determined, the UE needs to determine d _1,1 to finally determine the PDSCH processing time T _proc,1 . d _1,1 is a variable related to the number of overlapping OFDM symbols between the scheduled PDCCH and the scheduled PDSCH. The definition of d _1,1 varies according to different UE capability reporting and PDSCH mapping types, and the technical solution of the embodiment of the present application does not involve the change of d _1,1 , therefore, it will not be introduced in detail.

Generally, when the UE reports to the network device its ability to support PDSCH processing capability 2 at a certain subcarrier interval, the network device can configure whether a cell (cell) to which the UE belongs can be configured through a radio resource control (radio resource control, RRC) parameter. Enable the PDSCH processing capability 2. If enabled, the UE needs to combine another condition to judge whether it can process the PDSCH according to the PDSCH processing capability 2, that is, whether it can process the PDSCH according to _N1 defined in Table 2.

The other condition means that the UE needs to determine whether the dmrs-AdditionalPosition contained in the high layer parameters dmrs-DownlinkForPDSCH-MappingTypeA and dmrs-DownlinkForPDSCH-MappingTypeB is configured as 'pos0'. For example:

1-dmrs-AdditionalPosition contained in dmrs-DownlinkForPDSCH-MappingTypeA and dmrs-DownlinkForPDSCH-MappingTypeB are both configured as 'pos0', and the network device configures the cell to enable PDSCH processing capability 2 (for example, configured through the high-level parameter processingType2Enabled), then The UE performs PDSCH processing according to N ₁ defined in Table 2, and the network device needs to refer to N ₁ defined in Table 2 to perform PUCCH scheduling.

2-dmrs-AdditionalPosition contained in dmrs-DownlinkForPDSCH-MappingTypeA and dmrs-DownlinkForPDSCH-MappingTypeB are both configured as 'pos0', and the network device configuration cell does not enable PDSCH processing capability 2 (that is, according to PDSCH processing capability 1), Then the UE performs PDSCH processing according to N ₁ defined in the left column in Table 1, and the network device needs to refer to N ₁ defined in the left column in Table 2 to perform PUCCH scheduling.

3-At least one of the dmrs-AdditionalPositions contained in dmrs-DownlinkForPDSCH-MappingTypeA and dmrs-DownlinkForPDSCH-MappingTypeB is not configured as 'pos0' or at least one is not configured, and the network device configuration cell does not enable PDSCH processing capability 2 (that is, according to PDSCH processing capability 1), then the UE performs PDSCH processing according to _N1 defined in the right column in Table 1, and the network device needs to refer to _N1 defined in the right column in Table 2 to perform PUCCH scheduling.

The relationship between high layer parameter configuration and PDSCH processing time will be further described below.

The network device can schedule the PDSCH through DCI formats (DCI format) 1_0, 1_1 and 1_2. Among them, DCI formats 1_1 and 1_2 have respective corresponding high-layer parameters dmrs-AdditionalPosition, that is, network devices can configure specific high-layer parameters through DCI formats 1_1 and 1_2, so as to schedule PDSCH. It should be understood that whether there is an extra pilot in the PDSCH scheduled by the network device is related to the value of the higher layer parameter. Exemplarily, the dmrs-AdditionalPosition configured by the network device is pos1, pos2 or pos3, which means that the PDSCH scheduled by the DCI format 1_1 or 1_2 may have additional pilots.

For PDSCH mapping type A, when the OFDM symbol length l _d of the PDSCH scheduled by the network device is greater than 7 OFDM symbols, there will be additional pilots. Exemplarily, dmrs-AdditionalPosition='pos2', l _d =13, it can be seen from Table 3 that the PDSCH contains 13 consecutive OFDM symbols, and contains the first column pilot (front-loaded DMRS), and also contains two columns (Number) additional pilots, correspondingly, the positions of the first pilot and the two additional pilots are at symbol l ₀ , symbols 7 and 11 respectively. Also for example, dmrs-AdditionalPosition='pos0', l _d =13, it can be seen from Table 3 that the PDSCH contains 13 consecutive OFDM symbols, and only contains the first pilot, its position is L ₀ , and does not contain Additional pilot.

table 3

Specifically, the l _d value in the first column in Table 1 indicates the number of time-domain symbols occupied by one transmission (one PDSCH). When the PUSCH resource mapping type is Type B, the candidate values of the DMRS additional position dmrs-Additional Position are {0, 1, 2, 3}, which means that the number of additional DMRSs is 0, 1, 2 and 3 respectively. The value of dmrs-Additional Position is configured by the network device through high-level signaling, where l ₀ refers to the pre-DMRS.

It should be noted that, in the embodiment of the present application, the first pilot is equivalent to the pre-DMRS, the additional pilot is equivalent to the additional DMRS, and the time-domain symbols are mainly in the form of OFDM symbols, which will be described uniformly here. I won't repeat them later.

It should be understood that the protocol has specific definitions for network equipment to schedule PDSCH based on DCI format 1_0. For example, when the network device schedules mapping type A and mapping type B based on DCI format 1_0, the value of the high-level parameter dmrs-AdditionalPosition corresponding to the DCI format 1_0 is regarded as 'pos2', that is, when the network device schedules based on DCI format 1_0 When the OFDM symbol length l _d of the PDSCH of mapping type A is greater than 7, the PDSCH includes at least one column (number) of additional pilots; when the OFDM symbol length l _d of the PDSCH of scheduling mapping type B is greater than 4, the PDSCH includes at least one column (number ) additional pilot. In addition, the PDSCH scheduled by the network device based on the DCI format 1_0 will not include additional pilots.

Since the high-level parameter dmrs-AdditionalPosition value corresponding to the PDSCH scheduled by DCI format 1_0 is regarded as 'pos2' in the protocol, it can be seen from Table 1 and Table 2 that the UE's processing time for the PDSCH will always be defined in the right column of Table 1 , the N ₁ defined in the left column of Table 1 will not be used, nor will the N ₁ defined in Table 2 be used, because when the number of OFDM symbols l _d of the scheduled PDSCH is relatively long, the PDSCH will always include Additional pilot frequency, which requires the UE to process the PDSCH for a long time. In addition, it is also to prevent the processing time of the PDSCH from changing according to dynamic parameter changes.

For example, if the UE reports the PDSCH processing capability 2 to the network device, the network device configures a cell to which the UE belongs to enable the PDSCH processing capability 2 through high-layer parameters, and configures the high-layer parameter dmrs-AdditionalPosition corresponding to DCI format 1_1 If the value is 'pos0', when the UE receives the PDSCH scheduled by the network device based on DCI format 1_1, since the network device has enabled the cell to use the PDSCH processing capability 2, and the high-level parameter dmrs-AdditionalPosition value corresponding to DCI format 1_1 is 'pos0', the UE shall use _N1 defined in Table 2 to process the PDSCH. However, if the network device enables the cell to use the PDSCH processing capability 2, and the UE receives the PDSCH scheduled by the network device based on DCI format 1_0, the UE still uses N ₁ defined in the right column of Table 1.

It can be seen from the above that 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 equipment received by the UE, so the DCI format type will affect the processing time of the UE to process the PDSCH. Influence.

It should be understood that back-to-back scheduling (back-to-back scheduling) means that a network device schedules two consecutive PDSCHs together. Exemplarily, the network device requires that there is no other PDSCH scheduled for the terminal device between the first PDSCH scheduled for the same terminal device and the second PDSCH, and the end time domain symbol of the first PDSCH is at the start of the second PDSCH before the domain symbol. If the first PDSCH includes a pre-DMRS and at least one additional DMRS, and the second PDSCH only includes a pre-DMRS and does not include an additional DMRS, then the UE needs to completely receive all the pilots of the first PDSCH before processing the first PDSCH. PDSCH, which will delay the UE's processing time for the second PDSCH, so that the UE may not be able to complete the processing within the time specified in the protocol.

It should be understood that the time specified here refers to the minimum 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 minimum processing time. FIG. 3 shows a schematic diagram of a scenario of back-to-back scheduling provided by the present application, specifically as shown in FIG. 3 .

More specifically, in the aforementioned back-to-back scheduling scenario, if the capability information about the first PDSCH reported by the UE is processing capability 1, the DCI format configured by the network device is 1_0 (the value of the high-level parameter dmrs-AdditionalPosition is 'pos2') , and the capability information about the second PDSCH reported by the UE is processing capability 2, and the DCI format configured by the network device is 1_1. The processing time of the second PDSCH by the UE.

Currently, existing protocols propose several solutions to this technical problem, such as:

1) The UE does not expect the network device to schedule unicast PDSCH (unicast PDSCH) based on DCI format 1_0, which specifically involves two situations: l _d >7 (mapping type A) or l _d >4 (mapping type B). The unicast PDSCH is relative to the broadcast PDSCH. The broadcast PDSCH means the broadcast PDSCH, that is, the PDSCH carries broadcast information, and the unicast means that the PDSCH carries UE-specific information.

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

3) No matter whether the first PDSCH contains additional DM-RS or not, the UE's processing capability for the second PDSCH must be processing capability 2.

4) No matter whether the first PDSCH contains additional DM-RS or not, the UE's processing capability for the second PDSCH must be processing capability 2, but the UE does not expect to process any additional DM-RS in the first PDSCH, thereby maintaining pilot mapping and The rules remain the same.

5) Regardless of whether the first PDSCH contains additional DM-RS, the UE's processing capability for the second PDSCH must be processing capability 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 device enables the processing capability 2 of the cell, but does not configure the additional DM-RS of the first PDSCH, the UE assumes that the value of the high layer parameter dmrs-AdditionalPosition of the first PDSCH is 'pos0'.

6) The network device can schedule unicast PDSCHs of all lengths based on the 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 N ₁ defined in the table corresponding to PDSCH processing capability 1 needs to be used for PDSCH processing, while the second PDSCH is scheduled by the network device based on DCI format 1_1 , and according to the RRC parameter configuration, N ₁ defined in the table corresponding to the PDSCH processing capability 2 needs to be used for PDSCH processing. When the number of OFDM symbols l _d > 7 (mapping type A) or l _d > 4 (mapping type B) of the PDSCH scheduled by the network device, the UE's processing time for PDSCH will fall back from the processing time based on processing capability 2 to the processing time based on Processing time for processing capacity 1.

However, the above-mentioned technical solution 1 imposes restrictions on the scheduling of the network equipment, and the network equipment cannot use the DCI format 1_0 to schedule the PDSCH with a large number of OFDM symbols. The technical solution 2 has too much restriction on the scheduling of the network equipment, and the network equipment cannot use the DCI format 1_0 to schedule the unicast PDSCH at all. The technical solution 3 has too high requirements on the processing capability of the UE, which will cause problems that cannot be realized. Technical solution 4 does not deal with additional pilots, and has a great impact on the performance of PDSCH in low signal to interference plus noise ratio (SINR), high Doppler, and high extended delay scenarios, such as UE in high speed Move scenes, etc. In addition, the above technical solutions are discussed based on unicast PDSCH. However, 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 for the PDSCH, the UE will The processing time of the broadcast PDSCH will still affect the processing time of the subsequent PDSCH by the UE.

In addition, in the scenario of back-to-back scheduling, the first PDSCH adopts the processing capability 1 of the PDSCH, and the second PDSCH adopts the processing capability 2 of the PDSCH. Since the processing time of the second PDSCH needs to adopt the time defined in Table 2, which is very short, the processing time of the first PDSCH has a great impact on the processing time of the second PDSCH. Even if the two PDSCHs before and after both use the processing capability 1 of the PDSCH, the former PDSCH will also affect the processing time of the latter PDSCH.

In view of the above technical problems, this application provides a new resource scheduling method and communication equipment, which can solve the problem of avoiding the processing time of the first PDSCH from affecting the second PDSCH when there is an extra pilot in the first PDSCH in the back-to-back scheduling scenario. Technical issues that affect processing time.

FIG. 4 shows a schematic flowchart of a resource scheduling method #400 provided by the present application. The subject of execution of the method is the network device and the UE, and the specific content is shown in FIG. 4 .

S410, the network device sends the first DCI and the second DCI, 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 used for scheduling the first PDSCH, and the second DCI is used for scheduling the second PDSCH.

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

It should be understood that the first predefined condition includes: the interval 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 includes the first preamble The demodulation reference signal DMRS and at least one first additional DMRS, the second PDSCH includes the second preamble DMRS and does not include the additional DMRS.

It should be understood that when the UE determines that the first PDSCH and the second PDSCH meet the first predefined condition, it determines that the first PDSCH and the second PDSCH belong to the back-to-back scheduling scenario. The UE does not expect scheduling, and can formulate corresponding actions based on the judgment result.

It should be understood that the first threshold may be predefined or configured by the network device. The first threshold may be 0, 1, 2, etc., which is not specifically limited in the present application.

S430. Skip decoding processing on the second PDSCH, and/or, send second HARQ-ACK information corresponding to the second PDSCH.

It should be understood that skipping the decoding processing of the second PDSCH can be understood as not performing decoding processing on the second PDSCH by the terminal device, and can also be understood as not performing processing on the second PDSCH, including not performing channel estimation processing, demodulation processing, etc. other processing. It can also be understood as not performing a receiving operation on the second PDSCH. A unified description is given here, and no further details will be given later.

It should be understood that, for the foregoing back-to-back scheduling scenario, the UE may skip decoding processing on the second PDSCH, and/or send second HARQ-ACK information corresponding to the second PDSCH.

As a possible implementation manner, 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_1 or DCI format 1_2.

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

As a possible implementation manner, the HARQ-ACK information includes NACK, where a value of 0 in the HARQ-ACK information corresponds to NACK.

It should be understood that the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH between the first PDSCH and the second PDSCH.

The UE determines that the scheduling of the first PDSCH and the second PDSCH belongs to the back-to-back scheduling scenario by determining that the first PDSCH and the second PDSCH meet the first predefined condition, so that it can take corresponding actions, for example, skip the scheduling of the second PDSCH and/or, sending the second HARQ-ACK information.

Through this technical solution, the present application can avoid the impact of the extra pilot included in the previous PDSCH on the processing time of the latter PDSCH, thereby improving communication efficiency.

FIG. 5 shows a schematic flowchart of a resource scheduling method #500 provided by the present application. The subject of execution of the method is the network device and the UE, and the specific content is shown in FIG. 5 .

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

Wherein, the second DCI includes a time slot offset parameter, and the time slot offset parameter indicates that the time slot where the terminal equipment sends the second HARQ-ACK information corresponding to the second PDSCH is located between the time slot where the second PDSCH is located and the time slot where the second PDSCH is located. The number of interval time slots is N, and N is a positive integer. The time slot offset parameter may be the 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 based on the time slot offset parameter in the second DCI that the number of time slots between the time slot where the second HARQ-ACK information is fed back and the time slot where the second PDSCH is located is less than the predefined second threshold When it is determined that the processing of the second PDSCH cannot be completed within the specified processing time, the UE can take corresponding actions at this time.

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, or 2, etc., and this application does not specifically limit it .

S530. Skip decoding processing on the second PDSCH, and/or, send second HARQ-ACK information.

It should be understood that the UE may skip the decoding process of the second PDSCH, and/or send the second HARQ-ACK information, so as to avoid being unable to process the second PDSCH within the specified processing time range.

As a possible implementation, the CRC of the DCI format 1_0 is scrambled with the C-RNTI, CS-RNTI, or MCS-C-RNTI.

When the UE determines based on the time slot offset parameter in the second DCI that the number of time slots between the time slot where the second HARQ-ACK information is fed back and the time slot where the second PDSCH is located is less than the predefined second threshold, it can Make corresponding actions. For example, the decoding process for the second PDSCH is skipped, and/or, the second HARQ-ACK information is sent.

FIG. 6 shows a schematic flowchart of a resource scheduling method #600 provided by the present application. The subject of execution of the method is the network device and the UE, and the specific content is shown in FIG. 6 .

S610. Determine that the first PDSCH and the second PDSCH satisfy a second predefined condition.

It should be understood that the second predefined condition includes: the interval 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 the second threshold, and the first PDSCH includes the first preamble The demodulation reference signal DMRS and at least one first additional DMRS, the second PDSCH includes the second preamble DMRS and does not include the additional DMRS.

It should be understood that the network device determines or executes the scheduling of the PDSCH based on the UE's processing time for the PDSCH or the processing capability of the PDSCH.

Specifically, if the network device determines that the number of time domain symbols 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 the first threshold, and the first PDSCH includes the first preamble 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, then the network device determines that the first PDSCH will not affect the processing time of the second PDSCH, and the network device can normally The first PDSCH and the second PDSCH are scheduled.

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, or 2, etc., which is not specifically limited in this application .

S620. Send 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 understood that after the network device determines that the first PDSCH will not affect the processing time of the second PDSCH, it can send the first PDSCH and the second PDSCH to the UE.

It should be noted that, between the first PDSCH and the second PDSCH is a PDSCH that no network device is used to send to other UEs.

S630. Send the first HARQ-ACK information and the second HARQ-ACK information.

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

It should 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, by receiving the first DCI and the second DCI, the UE sends the information corresponding to the first PDSCH to the network device respectively on the time domain resource specified by the first DCI and the second DCI or on the time domain position on the PUCCH resource. The first HARQ-ACK information, and the second HARQ-ACK information corresponding to the second PDSCH.

It should be understood that by sending the first HARQ-ACK information and the second HARQ-ACK information to the network device, the UE facilitates the network device to determine that the UE has correctly completed the processing of the first PDSCH and the second PDSCH, and then schedules PDSCH resources for subsequent be prepared.

After the network device determines or judges that the first PDSCH and the second PDSCH meet the second predefined condition, the network device can normally schedule the first PDSCH and the second PDSCH, so that this application can realize that in the back-to-back scheduling scenario, when the first PDSCH exists When there is no additional pilot in the second PDSCH, the influence of the first PDSCH on the processing time of the second PDSCH is avoided, thereby improving communication efficiency.

FIG. 7 shows a schematic flowchart of a resource scheduling method #700 provided by the present application. The subject of execution of the method is the network device and the UE, and the specific content is shown in FIG. 7 .

S710. Determine that the first PDSCH and the second PDSCH satisfy a first predefined condition.

It should be understood that the first predefined condition includes: the interval 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 includes the first The demodulation reference signal DMRS and at least one first additional DMRS are configured, and the second PDSCH includes the second preamble DMRS and does not include the additional DMRS.

It should be understood that the network device determines that the first predefined condition is met between the first PDSCH and the second PDSCH, and the network device needs to adjust the content of the second DCI used to schedule the second PDSCH, for example, the second DCI includes a time slot offset Quantity parameters to avoid the impact of the extra pilot of the first PDSCH on the processing time of the second PDSCH, for example, the network device schedules the UE to send the HARQ corresponding to the second PDSCH on N time slots apart from the time slot where the second PDSCH is located - ACK information, wherein the N may be greater than a predefined value in the protocol, for example, the predefined value is 2, so that the impact of the first PDSCH on the processing time of the second PDSCH can be avoided.

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

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

S730. Send the first HARQ-ACK information and the second HARQ-ACK information.

It should be understood that the UE receives the first DCI and the second DCI, and sends the first DCI corresponding to the first PDSCH to the network device on the time domain resource specified by the first DCI and the second DCI or on the time domain position on the PUCCH resource. - HARQ-ACK information, and second HARQ-ACK information corresponding to the second PDSCH.

The network device adds a time slot offset parameter to the second DCI by determining that the first PDSCH and the second PDSCH meet the first predefined condition, and is used to instruct the UE to send the second HARQ-ACK information corresponding to the second PDSCH time slots, the present application can avoid the impact of the extra pilot of the first PDSCH on the processing time of the second PDSCH, and improve communication efficiency.

Fig. 8 shows a schematic flowchart of a resource scheduling method #800 provided by the present application. The subject of execution of the method is the network device and the UE, and the specific content is shown in FIG. 8 .

S810. Determine that the first PDSCH and the second PDSCH satisfy a first predefined condition.

Specifically, if the network device determines that the number of time domain symbols 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 includes the first preamble DMRS and at least one first additional DMRS, and the second PDSCH only includes the second pre-DMRS, but does not include the additional DMRS, then the network device determines that the first PDSCH will affect the processing time of the second PDSCH.

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

S820. Send the first DCI, the third DCI, the first PDSCH and the third PDSCH.

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

After determining that the first PDSCH will affect the processing time of the second PDSCH, the network device sends the first PDSCH and the third PDSCH to the UE. Wherein, the interval between the end time domain symbol of the first PDSCH and the start time domain symbol of the third PDSCH is K, wherein, K may be greater than or equal to the first threshold, and the specific value of K in this application There is no specific limitation, and it can be determined according to specific circumstances.

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

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

It should be noted that there is no other PDSCH between the first PDSCH and the second PDSCH. At the same time, it should also be understood that in the embodiment of the present application, the first PDSCH, the second PDSCH, and other subsequent PDSCHs are all scheduled for the same UE, and will not be mixed with other PDSCHs scheduled for other UEs. .

S830. Send the first HARQ-ACK information and the third HARQ-ACK information.

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

It should 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 receives the first DCI and the third DCI, and sends the first DCI corresponding to the first PDSCH to the network device on the time domain resource specified by the first DCI and the third DCI or on the time domain position on the PUCCH resource. - HARQ-ACK information, and third HARQ-ACK information corresponding to the third PDSCH.

It should be understood that, by sending the first HARQ-ACK information and the third HARQ-ACK information to the network device, the UE facilitates the network device to determine that the UE has completed the processing of the first PDSCH and the third PDSCH, and then performs subsequent scheduling of PDSCH resources. get ready.

As a possible implementation, after determining that the first PDSCH and the second PDSCH meet the first predefined condition, the network device adjusts the time-frequency resource positions of the first PDSCH and/or the second PDSCH, for example, making the first PDSCH The time domain symbols occupied by one PDSCH are moved forward, and/or the time domain symbols occupied by the second PDSCH are shifted backward, thereby increasing the interval between the end time domain symbols of the first PDSCH and the start time domain symbols of the second PDSCH The number of field symbols is used to avoid the impact of the first PDSCH on the processing time of the second PDSCH.

As a possible implementation, the number of time domain symbols K between the end time domain symbol of the first PDSCH and the start 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 first The number of OFDM symbols spaced between the last DMRS of the PDSCH and the first OFDM of the third PDSCH.

As a possible implementation, the interval between the end time domain symbol of the first PDSCH and the start time domain symbol of the third PDSCH The value of the number of time domain symbols K is associated with the position of the DMRS of the first PDSCH and the third PDSCH , the last DMRS of the first PDSCH is configured by the network device or actually sent by the network device.

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

As a possible implementation, the CRC of DCI format 1_0 is scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.

The network device can change or adjust the order or content of the PDSCH sent to the UE by determining that the first PDSCH and the second PDSCH meet the first predefined condition, so that the present application can solve the problem of when the first PDSCH exists in the back-to-back scheduling scenario. When there is no additional pilot in the second PDSCH, the influence of the first PDSCH on the processing time of the second PDSCH is avoided, thereby improving communication efficiency.

The communication device in this application will be described below with reference to the accompanying drawings.

Fig. 9 is a schematic block diagram of a communication device 900 provided in this application. As shown in the figure, the communication device 900 may include: a transceiver unit 910 and a processing unit 920 .

In a possible design, the communication device 900 may be the UE in the above method embodiment, or may be a chip configured to realize the functions of the UE in the above method embodiment.

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

It should be understood that each unit in the communication device 900 and the above-mentioned other operations and/or functions are respectively intended to implement the corresponding processes in FIG. 4 to FIG. 8 .

It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.

It should be understood that the above content is only understood as an example, and the communication device 900 can also implement other steps, actions or methods related to the UE in the above method embodiments, which will not be repeated here.

In another possible design, the communication device 900 may be the network device in the above method embodiment, or may be a chip configured to realize the functions of the network device in the above method embodiment.

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

It should also be understood that the transceiver unit 910 in the communication device 900 may correspond to the transceiver 1020 in the communication device 1000 shown in FIG. 10, and the processing unit 920 in the communication device 900 may correspond to the communication device shown in FIG. Processor 1010 in device 1000 .

It should also be understood that when the communication device 900 is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may 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 used to realize the signal sending and receiving operation of the communication device 900 , and the processing unit 920 is used to realize the signal processing operation of the communication device 900 .

Optionally, the communication device 900 further includes a storage unit 930, and the storage unit 930 is configured to store instructions.

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

Optionally, the communications device 1000 further includes a memory 1030 for storing instructions.

It should be understood that the processor 1010 and the memory 1030 may be combined into one processing device, and the processor 1010 is configured to execute program codes stored in the memory 1030 to implement the above functions. During specific implementation, the memory 1030 may also be integrated in the processor 1010 , or be independent of the processor 1010 .

It should also be understood that the transceiver 1020 may include a receiver (or called a receiver) and a transmitter (or called a transmitter).

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

When the communication device 1000 is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may 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 present application also provides a processing device, including a processor and an interface. The processor may be used to execute the methods in the foregoing method embodiments.

It should be understood that the above processing device may be a chip. For example, the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC), or a system chip (system on chip, SoC). It can be a central processor unit (CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (micro controller unit) , MCU), can also be a programmable controller (programmable logic device, PLD) or other integrated chips.

In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, no detailed description is given here.

The embodiment of the present application further provides a computer-readable storage medium, on which computer instructions for implementing the method executed by the network device in the above method embodiment are stored.

For example, when the computer program is executed by a computer, the computer can implement the method performed by the network device in the foregoing method embodiments.

The embodiment of the present application further provides a computer-readable storage medium, on which computer instructions for implementing the method executed by the UE in the foregoing method embodiments are stored.

For example, when the computer program is executed by a computer, the computer can implement the method performed by the UE in the foregoing method embodiments.

The embodiment of the present application also provides a computer program product including an instruction, and when the instruction is executed by a computer, the computer implements the method executed by the UE in the foregoing method embodiment.

The embodiment of the present application also provides a computer program product including instructions, and when the instructions are executed by a computer, the computer implements the method executed by the network device in the above method embodiments.

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

Those skilled in the art can clearly understand that for the convenience and brevity of description, the explanations and beneficial effects of the relevant content in any communication device provided above can refer to the corresponding method embodiments provided above, and are not repeated here. repeat.

The embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application, as long as the program that records the code of the method provided in the embodiment of the present application can be executed according to the method provided in the embodiment of the present application Just communicate. For example, the subject of execution of the method provided by the embodiment of the present application may be a UE or a network device, or a functional module in the UE or a network device that can call a program and execute the program.

Various aspects or features of the present application can 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 may encompass a computer program accessible from any computer readable device, carrier or media.

Wherein, the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. Usable media (or computer-readable media) may include, but are not limited to, magnetic media or magnetic storage devices (for example, floppy disks, hard disks (such as removable hard disks), magnetic tapes), optical media (for example, optical disks, compact discs, etc.) , CD), digital versatile disc (digital versatile disc, DVD, etc.), smart cards and flash memory devices (such as erasable programmable read-only memory (EPROM), card, stick or key drive, etc. ), or semiconductor media (such as solid state disk (SSD), U disk, read-only memory (ROM), random access memory (RAM), etc. can store programs The medium of the 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" may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.

It should be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile memory and nonvolatile memory. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM). For example, RAM can be used as an external cache. As an example and not limitation, RAM may include the following forms: static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM) , double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) and Direct memory bus random access memory (direct rambus RAM, DR RAM).

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

It should also be noted that the memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.

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

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to implement the solutions provided in this application.

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

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof.

When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. A computer can be a general purpose computer, special purpose computer, computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device, etc. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g. Coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server or data center. Regarding the computer-readable storage medium, reference can be made to the above description.

It should be understood that in this embodiment of the application, the numbers "first", "second"... are only used to distinguish different objects, such as different network devices, and do not limit the scope of the embodiment of this application. Examples are not limited to this.

It should also be understood that in this application, "when", "if" and "if" all mean that the network element will make corresponding processing under certain objective circumstances, and it is not a limited time, and it does not require the network element to There must be an action of judgment during implementation, and it does not mean that there are other restrictions.

It should also be understood that in each embodiment of the present application, "A corresponds to B" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.

It should also be understood that the term "and/or" in this article is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate: A exists alone, and A and B exist simultaneously. B, there are three situations of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A method for resource scheduling, characterized by comprising:

receiving first downlink control information DCI and second DCI, the first DCI is used to schedule the first physical downlink shared channel PDSCH, and the second DCI is used to schedule the second PDSCH;

determining that the first PDSCH and the second PDSCH satisfy a first predefined condition, where the first predefined condition includes: the end time domain symbol of the first PDSCH and the start time domain symbol of the second PDSCH The number of spaced time-domain symbols is less than or equal to the first threshold, the first PDSCH includes the first pre-demodulation reference signal DMRS and at least one first additional DMRS, and the second PDSCH includes the second pre-DMRS, not including additional DMRS;

Skip the decoding process of the second PDSCH, and/or, send the second hybrid automatic repeat request response HARQ-ACK information corresponding to the second PDSCH,

Wherein, the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH between the first PDSCH and the second PDSCH.
The method according to claim 1, characterized in that,

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_1 or DCI format 1_2.
The method according to claim 1 or 2, characterized in that,

The cyclic redundancy check code CRC of the DCI format 1_0 is added by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI or the modulation and coding mode cell radio network temporary identifier MCS-C-RNTI disturbing.
The method according to any one of claims 1 to 3, characterized in that,

The HARQ-ACK information includes NACK, and a value of 0 in the HARQ-ACK information corresponds to the NACK.
A method for resource scheduling, characterized by comprising:

Determining that the first physical downlink shared channel PDSCH and the second PDSCH sent to the terminal device meet a second predefined condition, where the second predefined condition includes: the end time domain symbol of the first PDSCH and the time domain symbol of the second PDSCH The number of time domain symbols spaced between the starting time domain symbols is greater than or equal to the first threshold, the first PDSCH includes the first pre-demodulation reference signal DMRS and at least one first additional DMRS, and the second PDSCH includes the second Pre-DMRS, and does not include additional DMRS;

sending the first downlink control information DCI, the 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 end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH sent to the terminal device between the first PDSCH and the second PDSCH .
The method according to claim 5, characterized in that,

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_1 or DCI format 1_2.
The method according to claim 5 or 6, characterized in that,

The cyclic redundancy check code CRC of the DCI format 1_0 is added by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI or the modulation and coding mode cell radio network temporary identifier MCS-C-RNTI disturbing.
A communication device, characterized in that it includes:

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

a processing unit, configured to determine that the first PDSCH and the second PDSCH meet a first predefined condition, where the first predefined condition includes: the end time domain symbol of the first PDSCH and the time domain symbol of the second PDSCH The interval between the initial time domain symbols and the number of time domain symbols is less than or equal to the first threshold, the first PDSCH includes the first pre-demodulation reference signal DMRS and at least one first additional DMRS, and the second PDSCH includes the second Pre-DMRS, excluding additional DMRS;

The processing unit is configured to skip the decoding process of the second PDSCH, and/or the transceiver unit is configured to send the second hybrid automatic repeat request response HARQ-ACK information corresponding to the second PDSCH ,

Wherein, the end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH between the first PDSCH and the second PDSCH.
The apparatus according to claim 8, characterized in that,

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_1 or DCI format 1_2.
Apparatus according to claim 8 or 9, characterized in that

The cyclic redundancy check code CRC of the DCI format 1_0 is added by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI or the modulation and coding mode cell radio network temporary identifier MCS-C-RNTI disturbing.
Apparatus according to any one of claims 8 to 10, characterized in that

The HARQ-ACK information includes NACK, and a value of 0 in the HARQ-ACK information corresponds to the NACK.
A communication device, characterized in that it includes:

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

a transceiver unit, configured to send the first downlink control information DCI, the 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 end time domain symbol of the first PDSCH is before the start time domain symbol of the second PDSCH, and there is no third PDSCH sent to the terminal device between the first PDSCH and the second PDSCH .
The apparatus according to claim 12, characterized in that,

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_1 or DCI format 1_2.
Apparatus according to claim 12 or 13, characterized in that

The cyclic redundancy check code CRC of the DCI format 1_0 is added by the cell radio network temporary identifier C-RNTI or the configured scheduling radio network temporary identifier CS-RNTI or the modulation and coding mode cell radio network temporary identifier MCS-C-RNTI disturbing.
A computer storage medium, characterized in that instructions are stored therein, and when the instructions are run on a computer, the computer is made to execute the resource scheduling method according to any one of claims 1 to 4.
A computer storage medium, characterized in that instructions are stored, and when the instructions are run on a computer, the computer is made to execute the resource scheduling method according to any one of claims 5 to 7.
A computer program product, characterized in that, when the computer program product is run on a computer, the computer is made to execute the resource scheduling method according to any one of claims 1 to 4.
A computer program product, characterized in that, when the computer program product is run on a computer, the computer is made to execute the resource scheduling method according to any one of claims 5 to 7.