CN116981070A

CN116981070A - Data scheduling method and device

Info

Publication number: CN116981070A
Application number: CN202210408253.7A
Authority: CN
Inventors: 周欢
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2023-10-31

Abstract

The present disclosure provides a data scheduling method and apparatus, the method comprising: acquiring Downlink Control Information (DCI) which is used for scheduling uplink data or downlink data of a plurality of carriers or used for scheduling uplink data or downlink data of a plurality of discontinuous frequency domain resources; and sending the DCI. In the present disclosure, since DCI is used to schedule uplink data or downlink data of multiple carriers, or DCI is used to schedule uplink data or downlink data of multiple discontinuous frequency domain resources, so that one DCI schedules uplink data or downlink data of multiple carriers, and one DCI schedules uplink data or downlink data of multiple discontinuous frequency domain resources, thereby meeting data scheduling requirements.

Description

Data scheduling method and device

Technical Field

The disclosure relates to the technical field of resource scheduling, and in particular relates to a resource data scheduling method and device.

Background

DCI (Downlink Control Information ) is used to transmit downlink scheduling assignment information, uplink grant transmission information, and some common control information, and is carried on PDCCH (Physical downlink control channel ).

DCI may be divided into a plurality of types according to the content of the carried control information, for example, DCI0_0 and DCI 0_1, dci0_2 is mainly used for scheduling of PUSCH (Physical uplink shared channel ), DCI 1_0 and 1_1,1_2 are mainly used for scheduling of PDSCH (Physical downlink shared channel ), DCI 2_0 is used for informing a User Equipment (UE) of a group of slot formats, and the like.

In the exemplary technology, one DCI can only schedule PDSCH on one carrier or PUSCH on one carrier, and one carrier can only contain continuous frequency domain resources, so that the scheduling of PDSCH and PUSCH is inflexible and cannot meet the data scheduling requirement.

Disclosure of Invention

The disclosure provides a data scheduling method and device for meeting data scheduling requirements.

In one aspect, the present disclosure provides a data scheduling method, applied to an access device, including:

acquiring Downlink Control Information (DCI) which is used for scheduling uplink data or downlink data of a plurality of carriers or used for scheduling uplink data or downlink data of a plurality of discontinuous frequency domain resources;

and sending the DCI.

In an embodiment, the DCI includes first index information, where the first index information is used to indicate the scheduled multiple carriers or indicate the scheduled multiple discontinuous frequency domain resources.

In an embodiment, the DCI includes a first-stage DCI and a second-stage DCI, and the transmitting the DCI includes:

transmitting the first-stage DCI, wherein the first-stage DCI is at least used for indicating transmission resources of the second-stage DCI;

and sending second-stage DCI, wherein the second-stage DCI is used for scheduling uplink data or downlink data of a plurality of carriers, or the second-stage DCI is used for scheduling uplink data or downlink data of a plurality of discontinuous frequency domain resources.

In an embodiment, the first-stage DCI and/or the second-stage DCI include first index information for indicating the plurality of carriers scheduled by the first-stage DCI and/or the second-stage DCI or indicating the plurality of discontinuous frequency domain resources scheduled by the first-stage DCI and/or the second-stage DCI.

In an embodiment, the first-level DCI further includes indication information, where the indication information is used to determine that the second-level DCI includes downlink grant information and/or uplink grant information.

In an embodiment, the first-level DCI further includes a bitmap, where a bit value in the bitmap is used to indicate that data transmitted on a carrier corresponding to the bit is uplink data or downlink data, or is used to indicate discontinuous frequency domain resources corresponding to the bit.

In an embodiment, the first-stage DCI further includes second index information, where the second index information is used to indicate uplink data or downlink data of multiple carriers scheduled by the second-stage DCI, or is used to indicate discontinuous frequency domain resources scheduled by the second DCI.

In an embodiment, the first-stage DCI further includes format information of the second-stage DCI.

In an embodiment, the downlink control information of each PDSCH or PUSCH scheduled by the second-level DCI is arranged according to the order of carriers.

In an embodiment, the downlink control information DCI of each PDSCH or PUSCH of the second-level DCI level includes a plurality of fields, and control information in the same type of fields is arranged in order of carriers.

On the other hand, the present disclosure also provides a data scheduling method, applied to a user terminal, including:

receiving Downlink Control Information (DCI) which is used for scheduling uplink data or downlink data of a plurality of carriers or used for scheduling uplink data or downlink data of a plurality of discontinuous frequency domain resources;

determining transmission resources of uplink data or downlink data according to the DCI;

and receiving downlink data on the transmission resource or sending uplink data on the transmission resource.

In an embodiment, the DCI includes first index information, where the first index information is used to indicate the scheduled multiple carriers or indicate the scheduled multiple discontinuous frequency domain resources, and the step of determining, according to the DCI, transmission resources of uplink data or downlink data includes:

determining a plurality of carriers or a plurality of discontinuous frequency domain resources according to first index information in the DCI;

and determining transmission resources of uplink data or downlink data of the plurality of carriers, or determining transmission resources according to the plurality of discontinuous frequency domain resources.

In an embodiment, the DCI includes a first-stage DCI and a second-stage DCI, and the receiving downlink control information DCI includes:

receiving the first-stage DCI, wherein the first-stage DCI is at least used for indicating transmission resources of the second-stage DCI;

determining transmission resources of the second-stage DCI according to the first-stage DCI;

and receiving the second-level DCI on the transmission resource of the second-level DCI, wherein the second-level DCI is used for scheduling uplink data or downlink data of a plurality of carriers, or the second-level DCI is used for scheduling uplink data or downlink data of a plurality of discontinuous frequency domain resources.

In an embodiment, the first-level DCI further includes indication information, where the indication information is used to determine that the second-level DCI includes downlink grant information and/or uplink grant information, and the step of determining, according to the DCI, transmission resources of uplink data or downlink data includes:

and determining transmission resources of downlink data or uplink data according to the indication information included in the first-stage DCI.

In an embodiment, the first-level DCI further includes a bitmap, where a bit value in the bitmap is used to indicate that data transmitted on a carrier corresponding to the bit is uplink data or downlink data, or is used to indicate discontinuous frequency domain resources corresponding to the bit, and the step of determining, according to the DCI, transmission resources of the uplink data or the downlink data includes:

acquiring a bitmap in the first-stage DCI;

and determining transmission resources of uplink data or downlink data of a carrier corresponding to the bit according to the value of the bit in the bitmap, or determining transmission resources of discontinuous frequency domain resources corresponding to the bit according to the value of the bit in the bitmap.

In an embodiment, the first-stage DCI further includes second index information, where the second index information is used to indicate uplink data or downlink data scheduled by the second-stage DCI for multiple carriers, or is used to indicate discontinuous frequency domain resources scheduled by the second DCI, and the step of determining transmission resources of the uplink data or the downlink data according to the DCI includes:

and determining transmission resources of uplink data or downlink data of each carrier according to the second index information included in the first-stage DCI, or determining transmission resources of discontinuous frequency domain resources according to the second index information included in the first-stage DCI.

In an embodiment, the downlink control information DCI of each PDSCH or PUSCH scheduled by the second-level DCI is arranged according to the order of carriers.

In another aspect, the present disclosure further provides an access device, including:

an acquiring module, configured to acquire downlink control information DCI, where the DCI is used to schedule uplink data or downlink data of multiple carriers, or the DCI is used to schedule uplink data or downlink data of multiple discontinuous frequency domain resources;

And a sending module, configured to send the DCI.

In another aspect, the present disclosure further provides an access device, including: a memory and a processor;

the memory stores computer-executable instructions;

the processor executes the computer-executable instructions stored by the memory, causing the processor to perform the data scheduling method as described above.

In another aspect, the present disclosure further provides a user terminal, including:

a receiving module, configured to receive downlink control information DCI, where the DCI is used to schedule uplink data or downlink data of multiple carriers, or the DCI is used to schedule uplink data or downlink data of multiple discontinuous frequency domain resources;

a determining module, configured to determine transmission resources of uplink data or downlink data according to the DCI;

the receiving module is further configured to receive downlink data on the transmission resource or send uplink data on the transmission resource.

In another aspect, the present disclosure further provides a user terminal, including: a memory and a processor;

the memory stores computer-executable instructions;

In another aspect, the present disclosure also provides a computer-readable storage medium having stored therein computer-executable instructions for implementing the data scheduling method as described above when executed by a processor.

In another aspect, the present disclosure also provides a computer program product comprising a computer program which, when executed by a processor, implements a data scheduling method as described above.

The data scheduling method and device provided by the disclosure acquire downlink control information DCI and then send the DCI. The DCI is used for scheduling the uplink data or the downlink data of a plurality of carriers or the DCI is used for scheduling the uplink data or the downlink data of a plurality of discontinuous frequency domain resources, so that one DCI is used for scheduling the uplink data or the downlink data of a plurality of carriers, one DCI is used for scheduling the uplink data or the downlink data of a plurality of discontinuous frequency domain resources, and the data scheduling requirement is met.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram of a scenario of a data scheduling method of the present disclosure;

FIG. 2 is a flowchart illustrating a first embodiment of a data scheduling method according to the present disclosure;

FIG. 3 is a flow chart illustrating a second embodiment of a data scheduling method of the present disclosure;

FIG. 4 is a flow chart illustrating a third embodiment of a data scheduling method of the present disclosure;

FIG. 5 is a flowchart illustrating a fourth embodiment of a data scheduling method according to the present disclosure;

fig. 6 is a block diagram of an access device of the present disclosure;

fig. 7 is a schematic block diagram of a user terminal of the present disclosure;

fig. 8 is a schematic structural diagram of an access device/user terminal of the present disclosure.

Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

The present disclosure provides a data scheduling method. As shown in fig. 1, the access device 100 is communicatively connected to a user terminal 200. The access device 100 may be a base station. The access device 100 acquires DCI for scheduling uplink data or downlink data of a plurality of carriers, or DCI for scheduling uplink data or downlink data of a plurality of discontinuous frequency domain resources. The access device 100 transmits a PDCCH including DCI to the user terminal 200. The user terminal 200 obtains DCI based on PDCCH parsing, thereby obtaining transmission resources based on the DCI, and then receives downlink data on the transmission resources or transmits uplink data on the transmission resources, so as to complete scheduling of the data.

The following describes the technical scheme of the present disclosure and how the technical scheme of the present disclosure solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present disclosure will be described below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a first embodiment of a data scheduling method of the present disclosure, applied to an access device, the data scheduling method includes the following steps:

In step S201, downlink control information DCI is acquired, where the DCI is used to schedule uplink data or downlink data of multiple carriers, or the DCI is used to schedule uplink data or downlink data of multiple discontinuous frequency domain resources.

In this embodiment, the execution subject is an access device, which may be a base station. When data scheduling is required, the access device performs data scheduling through DCI (Downlink Control Information ).

Depending on the control information in the DCI, the DCI may be classified as follows:

1. DCI 0_0, DCI 0_1 and DCI0_2 are mainly responsible for scheduling of uplink PUSCH (Physical Uplink shared Channel );

2. DCIs 1_0 and 1_1,1_2 are mainly responsible for scheduling of downlink PDSCH (Physical downlink shared channel );

3. DCI 2_0 is responsible for informing UEs (User Equipment) of one group of slot formats;

4. DCI 2_1 is responsible for informing UEs of one group of unavailable downlink PRB (Physical Resource Block ) and OFDM (Orthogonal Frequency Division multiplexing. Orthogonal frequency division multiplexing) symbols;

5. DCI 2_2 is responsible for TCP (Transmit Power Control, transmission power control) instruction transmission of PUCCH (Physical Uplink Control Channel ) and PUSCH;

6. DCI 2_3 is responsible for TPC commands for a set of SRS (Sounding reference signal ) for one or more UEs;

7、2_4、2_5、2_6、3_0、3_1。

each field included in DCI 1_0, DCI 1_1, DCI 1_2, DCI 0_0, DCI 0_1 and DCI 0_2 for downlink and uplink PDSCH scheduling has a function.

Taking DCI 1_0 scheduling information as an example, how one DCI transmits PDSCH information of one carrier, DCI 1_0 transmitted by PDCCH (Physical downlink control channel ) includes the following field information:

1. DCI formats indication field

This field indicates whether the DCI information is uplink or downlink scheduling information, occupies 1bit,0 represents uplink, and 1 represents downlink, so it is fixed to 1 for DCI 1-0.

2. Frequency domain resource indication field of PDSCH

This field indicates the frequency domain Resource of PDSCH, the number of occupied bits is determined by the size of BWP (Bandwidth Part) and the frequency domain Resource allocation Type, and the DCI1-0 frequency domain Resource scheduling mode can only be Type1 (Type 1 is used for continuous RB (Resource Block) scheduling, indicating the frequency domain starting position and length of the scheduled Resource), so that the RIV value can be calculated according to the starting RB and RB number occupied by PDSCH, and the RIV value can be mapped to this field.

3. Time domain resource indication field

This field indicates the time domain resource of PDSCH, occupies 4 bits, represents the table look-up index of time domain resource table SLIV value, and one row in the table contains the time slot interval of PDSCH time domain time slot and PDCCH, the starting symbol and length of PDSCH in the time slot, and the information of PDSCH mapping type.

4. Mapping indication field of VRB to PRB

This field indicates the mapping of PDSCH from VRB (Virtual Resource Block virtual resource block) to PRB, occupies 1bit, value 0 represents non-interlace, and 1 represents interlace.

5. Modulation and coding scheme indication field

This field indicates modulation and coding scheme of PDSCH, occupies 5 bits, and represents table lookup index of PDSCH in different modulation scheme, target code rate and spectrum efficiency.

6. New data indication field

This field occupies 1bit, indicating whether the current transmission is new or retransmitted.

7. Redundancy version field

This field indicates redundancy version, occupies 2 bits, and the value represents a specific meaning determined by the following table.

8. HARQ (Hybrid Automatic Repeat Request) hybrid automatic repeat request) process number indication, 4 bits are occupied.

9. Downlink allocation indication field

This field occupies 2 bits, indicating how many subframes the UE contains downlink transmissions in the HARQ (feedback window).

10. TPC indication field of scheduling PUCCH

This field represents the originating power control indication of the PUCCH.

11. Feedback timing field of PDSCH to HARQ

This field is used to feed back the slot offset indication information of the PDSCH corresponding to the HARQ-ACK.

The DCI 1_1 is mainly responsible for scheduling PDSCH after access, and compared with the DCI1_0, the length of the DCI 1_1 field is more dependent on the configuration of high-level parameters, and a plurality of fields are added, and the new addition is as follows:

1. BWP indicator field

This field is used to indicate the active BWP of the current UE.

2. Frequency domain resource indication field

Compared with the PDSCH frequency domain resource mapping mode of DCI 1-0 scheduling, the PDSCH frequency domain resource mapping mode is limited to Type1, three frequency domain resource scheduling modes are respectively Type0, type1 and Type self-adaption, type0 refers to the frequency domain resource of the PDSCH scheduled by a bitmap mapping mode, and the scheduling has the advantages that partial frequency domain scheduling gain can be obtained and fragmented resources can be utilized; type1 is scheduled by calculating RIV through RB_start and RB_num; the Type adaptation indicates that the frequency domain resource scheduling mode is Type0 or Type1 by 1bit of information in the DCI bit.

3. Time domain resource indication field

This field indicates the time domain resource of PDSCH, occupying a number of bits of 0, 1, 2, 3 or 4 bits, depending on the following equation:

When the high-level parameter pdsch-TimeDomainAlllocation List is configured, I represents the number of items in the list in this high-level parameter; the SLIV value can be calculated according to the time domain scheduling initial symbol S and the symbol number L of the PDSCH, and then the index corresponding to the SLIV in the table is filled into the bit after table lookup, so that the time domain resource indication is completed.

4. Mapping field of VRB to PRB

The field indicates mapping from VRB to PRB of PDSCH, occupies 0 or 1bit, and occupies 0bit when the field is not configured by a high layer or the frequency domain resource allocation mode is type 0; when 1bit is occupied, a value of 0 indicates that the VRB-to-PRB mapping is non-interleaved, and a value of 1 indicates interleaving.

5. PRB Bundle Size indication field

This field indicates the bundling size of PRBs of PDSCH.

As can be seen from the above, one DCI includes a plurality of fields. While the bits that one DCI can carry are limited. In general, only one field is placed in one DCI to indicate the resource for DCI scheduling, that is, one DCI can only schedule PDSCH on one carrier or PUSCH on one carrier, PDSCH or PUSCH on multiple carriers cannot be scheduled, and the current carrier can only contain continuous frequency domain resources, but cannot support discontinuous frequency domain resources.

In this embodiment, uplink data or downlink data of a plurality of discontinuous frequency domain resources may be scheduled by one DCI, and uplink data or downlink data of a plurality of carriers may be scheduled.

The access device obtains DCI, one field in which may be used to indicate information of the scheduled multiple carriers.

In an example, the field characterizes first index information corresponding to an identification of the plurality of carriers, i.e., the first index information is used to indicate the plurality of carriers scheduled, or to indicate the plurality of discontinuous frequency domain resources scheduled. For example, the first index information is 000, and the corresponding multiple carrier identifiers are [0,1,2], which indicates that the DCI schedules carrier 0, carrier 1 and carrier 2; the first index information is 001, and the corresponding multiple carrier marks are [3,4], which indicates that the DCI schedules carrier 3 and carrier 4; the first index information is 010, and the corresponding multiple carrier identifiers are [5,6], which indicates that the DCI schedules carrier 5 and carrier 6.

Step S202, DCI is transmitted.

After obtaining the DCI, the access device sends a PDCCH to the UE, wherein the PDCCH comprises the DCI. And the UE acquires the DCI based on the PDCCH and analyzes the DCI to obtain first index information.

The UE stores a mapping table, and the mapping table comprises a mapping relation between the first index information and the carrier identification. The mapping table is, for example:

First index information	Carrier identification
		000	[0,1,2]
001	[3,4]
		010	[5,6]
…	…

The UE can determine the identifier of each carrier to be scheduled by the DCI through the first index information and the mapping table, so as to determine the transmission resource of uplink data or downlink data based on the identifier of each carrier, or determine a plurality of discontinuous frequency domain resources to be scheduled through the identifier of each carrier, so as to receive downlink data on the transmission resource or send uplink resources on the transmission resource.

In this embodiment, downlink control information DCI is acquired and then DCI is transmitted. The DCI is used for scheduling the uplink data or the downlink data of a plurality of carriers or the DCI is used for scheduling the uplink data or the downlink data of a plurality of discontinuous frequency domain resources, so that one DCI is used for scheduling the uplink data or the downlink data of a plurality of carriers, one DCI is used for scheduling the uplink data or the downlink data of a plurality of discontinuous frequency domain resources, and the data scheduling requirement is met.

Referring to fig. 3, fig. 3 is a flowchart illustrating a second embodiment of the data scheduling method of the present disclosure, based on the first embodiment, step S202 includes:

in step S2021, first-stage DCI is sent, where the first-stage DCI is at least used to indicate transmission resources of the second-stage DCI.

In this embodiment, the DCI includes first-stage DCI and second-stage DCI. The access device first transmits first-stage DCI, wherein the first-stage DCI is at least used for indicating transmission resources of second-stage DCI. The first-level DCI may indicate transmission resources of the second-level DCI through a field.

In step S2022, a second-level DCI is sent, where the second-level DCI is used to schedule uplink data or downlink data of multiple carriers, or the second-level DCI schedules uplink data or downlink data of multiple discontinuous frequency domain resources.

After the first-stage DCI is sent, a second-stage DCI is sent, where the second-stage DCI is used to schedule uplink data or downlink data of multiple carriers, or the second-stage DCI is used to schedule uplink data or downlink data of multiple discontinuous frequency domain resources.

In addition, the first-stage DCI and/or the second-stage DCI include first index information, where the first index information corresponds to an identification of a plurality of carriers, that is, the first index information is used to indicate a plurality of carriers scheduled by the first-stage DCI and/or the second-stage DCI, or indicate a plurality of discontinuous frequency domain resources scheduled by the first-stage DCI and/or the second-stage DCI.

In this embodiment, the second-level DCI does not need to perform blind detection, and the second-level DCI may carry more scheduling information, so that information of needed scheduling of more carriers or discontinuous frequency domain resources may be placed in the second-level DCI.

In an embodiment, the first-level DCI is a downlink scheduling DCI, that is, downlink data is scheduled, and the format of the first-level DCI is, for example, 1_1 or 1_2. The transmission resource of the second-level DCI is PDSCH scheduled by the first-level DCI. For example, if the first-level DCI schedules PDSCH0, the second-level DCI is carried on PDSCH 0.

The carrier on which the PDCCH for transmitting the first-stage DCI is located may be the same as the carrier on which the transmission resource of the second-stage DCI is located. For example, PDSCH0 is scheduled by the first-stage DCI, and the carrier on which PDSCH0 is located is the same as the carrier on which the PDCCH including the first-stage DCI is located.

When the first-level DCI schedules downlink data of a plurality of carriers, the second-level DCI includes scheduling information of PDSCH of a plurality of communication cells. When the first-stage DCI schedules uplink data of a plurality of carriers, the second-stage DCI includes frequency domain resource information of PUSCH of the plurality of carriers, that is, the second-stage DCI includes scheduling information of PUSCH of a plurality of communication cells. If the first-level DCI schedules uplink data or downlink data of multiple carriers, the second-level DCI includes scheduling information of PDSCH of multiple communication regions or scheduling information of PUSCH of multiple communication cells.

In an example, the first-level DCI further includes indication information, where the indication information is used to determine that the second-level DCI includes downlink grant information and/or uplink grant information. The downlink grant information indicates downlink scheduling, and the uplink grant information indicates uplink scheduling. When the second-level DCI includes PDSCH only (downlink scheduling only) or PUSCH only (uplink scheduling only), or pdsch+pusch (uplink and downlink mixed scheduling), the indication information included in the first-level DCI is used to determine DL (Up Link) or UL (downlink Link) or DL and UL included in the second-level DCI, which may be represented by 2 bits, that is, the indication information is 2 bits in size. When the second-level DCI includes PDSCH only (downlink scheduling only) or PUSCH only (uplink scheduling only), only 1bit is needed to indicate, that is, the size of the indication information is 1bit.

In another example, the first-level DCI further includes a bitmap, each bit in the bitmap corresponds to one carrier, and the value of each bit is used to indicate uplink data or downlink data of a scheduling carrier corresponding to the bit, that is, the value of the bit in the bitmap is used to indicate that data transmitted on the carrier corresponding to the bit is uplink data or downlink data. In addition, the value of each bit can be used for indicating discontinuous frequency domain resources corresponding to the bit. When the second-level DCI includes PDSCH only, PUSCH only, or pdsch+pusch, the first-level DCI indicates whether UL or DL is on a CC (Component Carrier, carrier) by means of bitmap. For example, there is a four carrier schedule, with 4bit bitmaps identifying DL or UL on each carrier; the bitmap is 0100, and the first carrier is the scheduled uplink data, the second carrier is the scheduled downlink data, and the third carrier and the fourth carrier are the scheduled uplink data.

In yet another example, the first-level DCI further includes second index information for indicating that the second-level DCI schedules uplink data or downlink data of the plurality of carriers or for indicating discontinuous frequency domain resources scheduled by the second-level DCI. That is, the second index information includes an index of a carrier of the communication cell, and UL, DL, or joint coding of UL and DL. Specifically referring to the following map table:

Index	Carrier identification	DL or UL
			000	{0,1,2}	DL,DL,DL
001	{3,4}	UL,UL
			010	{5,6}	DL,UL
…	…

When the index is 000, the first-stage DCI used for indicating the scheduling is uplink data of the carrier No. 0, uplink data of the carrier No. 1 and uplink data of the carrier No. 2; when the index is 001, the first-stage DCI used for indicating the scheduling is downlink data of the carrier No. 3 and downlink data of the carrier No. 4; when the index is 010, the first-stage DCI for indicating the scheduling is uplink data of carrier No. 5 and downlink data of carrier No. 6.

The first-stage DCI may further include format information of the second-stage DCI. The format of the second-stage DCI may be configured through higher layer signaling, or the format of the second-stage DCI is fixed in the same format as the first-stage DCI. The DCI format refers to that a field length in DCI is determined by a specified parameter in DCI. In addition, if the format of the second-level DCI is fixed and the same format as the first-level DCI, the specified parameter in the first-level DCI is also used to determine the length of the field of the same type as the second-level DCI. For example, the higher layer parameter specifies the format of the first level DCI, which determines the format of the second level DCI, and the higher layer parameter indicates whether the first level DCI is DCI0_1, DCI1_1, DCI0_2 or DCI 1_2. If the format of the first-level DCI is DCI0_1 or DCI1_1 fixedly adopted or the first-level DCI format is DCI1_1, the format of the second-level DCI is DCI0_1 or DCI1_1; if the first-level DCI format is DCI1_2, the second-level DCI format is DCI0_2 or DCI1_2.

In an embodiment, the transmission resource of the second-level DCI is any one PDSCH on a carrier on which the PDCCH of the first-level DCI is located, that is, any one PDSCH on a carrier on which the PDCCH including the first-level DCI is located carries the second-level DCI.

In an example, if any one PDSCH carries the second-level DCI, the DCIs in the PDSCH or PUSCH included in the second-level DCI are arranged according to the order of carriers. Specifically, if the second-level DCI includes DCI (scheduling information) on multiple PDSCH, each DCI in the second-level DCI is arranged according to the carrier on which the PDSCH is located, for example, DCI on PDSCH1 (PDSCH on the first carrier is defined as PDSCH 1), DCI on PDSCH2 (PDSCH on the second carrier is defined as PDSCH 2), DCI on PDSCH3 (PDSCH on the third carrier is defined as PDSCH 3), … …, DCI on PDSCHn are sequentially placed in the second-level DCI, and each DCI included in the second-level DCI specifically refers to the following table:

PDSCH1 DCI

PDSCH2 DCI

……

PDSCHn DCI

similarly, the DCIs in the second level of DCIs are arranged according to the carrier wave where the PUSCH is located, and the following table is specifically referred to:

PUSCH1 DCI

PUSCH2 DCI

……

PUSCHn DCI

it should be noted that, the carrier identification field Identifier for DCI formats and the DCI format identification field Carrier indicator may not be carried by the DCI in the PDSC or the PUSCH in the second-level DCI, because the first-level DCI includes Identifier for DCI formats and Carrier indicator, that is, the second-level DCI does not need to carry Identifier for DCI formats and Carrier indicator repeatedly.

In another example, if any one PDSCH carries the second-level DCI, the DCI of each PDSCH or PUSCH included in the second-level DCI includes a plurality of fields, and control information within each field of the same type is arranged in order of carriers. For example, fields such as Bandwidth part indicator (BWP information) and Frequency domain resource assignment (frequency domain resource allocation information) are included in the DCI of the PDSCH, the A1 field included in the DCI of the PDSCH1 is BWP information of the carrier 1, the A2 field included in the DCI2 of the PDSCH2 is BWP information of the carrier 2, and both the BWP information of the carrier 1 and the BWP information of the carrier 2 are BWP information, so A1 and A2 are defined as the same type of fields. Firstly, each BWP information (each BWP information is a field of the same type) is arranged according to the order of the carriers where the PDSCH is located, and then each frequency domain resource allocation information is arranged according to the order of the carriers where the PDSCH is located, for example, four carriers are included, and the arrangement of each field can refer to the following table:

similarly, fields of the same type in DCI in each PUSCH are arranged according to the order of carriers in which PUSCH is located, for example, the DCI of PUSCH includes fields such as Bandwidth part indicator (BWP information) and Frequency domain resource assignment (frequency domain resource allocation information), and then each BWP information is arranged according to the order of carriers in which PUSCH is located, and then each frequency domain resource allocation information is arranged according to the order of carriers in which PUSCH is located, for example, four carriers are included, and then the arrangement of each field may refer to the following table:

The disclosure also provides a data scheduling method.

Referring to fig. 4, fig. 4 is a first embodiment of a data scheduling method of the present disclosure, applied to a user terminal, the data scheduling method includes the following steps:

in step S401, downlink control information DCI is received, where the DCI is used to schedule uplink data or downlink data of multiple carriers, or the DCI is used to schedule uplink data or downlink data of multiple discontinuous frequency domain resources.

In the present embodiment, the execution subject is the user terminal UE.

When data scheduling is needed, the access device performs data scheduling through DCI (Downlink Control Information ), namely, the access device sends the DCI to the user terminal through PDCCH. Depending on the control information in the DCI, the DCI may be classified as follows:

7、2_4、2_5、2_6、3_0、3_1。

1. DCI formats indication field

2. Frequency domain resource indication field of PDSCH

This field indicates the frequency domain Resource of PDSCH, the number of occupied bits is determined by the size of BWP (Bandwidth Part) and the frequency domain Resource allocation Type, and the DCI 1-0 frequency domain Resource scheduling mode can only be Type1 (Type 1 is used for continuous RB (Resource Block) scheduling, indicating the frequency domain starting position and length of the scheduled Resource), so that the RIV value can be calculated according to the starting RB and RB number occupied by PDSCH, and the RIV value can be mapped to this field.

3. Time domain resource indication field

4. Mapping indication field of VRB to PRB

5. Modulation and coding scheme indication field

6. New data indication field

7. Redundancy version field

9. Downlink allocation indication field

10. TPC indication field of scheduling PUCCH

This field represents the originating power control indication of the PUCCH.

11. Feedback timing field of PDSCH to HARQ

1. BWP indicator field

This field is used to indicate the active BWP of the current UE.

2. Frequency domain resource indication field

3. Time domain resource indication field

4. Mapping field of VRB to PRB

5. PRB Bundle Size indication field

This field indicates the bundling size of PRBs of PDSCH.

In this embodiment, a plurality of discontinuous frequency domain resources may be scheduled by one DCI, and uplink data or downlink data of a plurality of carriers may be scheduled.

The access device acquires DCI, one field in the DCI may be used to indicate information of the scheduled multiple carriers, and the DCI will be sent to the user terminal through the PDCCH, i.e. the user terminal receives the DCI.

Step S402, determining transmission resources of uplink data or downlink data according to the DCI.

In an example, a field in the DCI characterizes first index information corresponding to an identification of a plurality of carriers, i.e., the first index information is used to indicate a plurality of carriers to be scheduled or to indicate a plurality of discontinuous frequency domain resources to be scheduled. For example, the first index information is 000, and the corresponding multiple carrier identifiers are [0,1,2], which indicates that the DCI schedules carrier 0, carrier 1 and carrier 2; the first index information is 001, and the corresponding multiple carrier marks are [3,4], which indicates that the DCI schedules carrier 3 and carrier 4; the first index information is 010, and the corresponding multiple carrier identifiers are [5,6], which indicates that the DCI schedules carrier 5 and carrier 6.

After obtaining the DCI, the access device sends a PDCCH to the UE, wherein the PDCCH comprises the DCI. The UE acquires DCI based on the PDCCD and analyzes the DCI to obtain first index information.

The user terminal stores a mapping table, and the mapping table comprises a mapping relation between the first index information and the carrier identification. The mapping table is, for example:

The user terminal can determine the identification of each carrier wave to be scheduled by the DCI through the first index information in the DCI and the mapping table, so as to determine the uplink data or the downlink data transmission resources of the carrier wave corresponding to the identification of each carrier wave. Or the user terminal may determine a plurality of discontinuous frequency domain resources through the first index information and the mapping table, thereby determining transmission resources based on the plurality of discontinuous frequency domain resources.

Step S403, downlink data is received on the transmission resource or uplink data is sent on the transmission resource.

After determining the transmission resource, the user terminal can receive the downlink data on the transmission resource or send the uplink data on the transmission resource.

In this embodiment, downlink control information DCI is received, a transmission resource of uplink data or downlink data is determined according to the DCI, and finally downlink data is received on the transmission resource or uplink data is sent on the transmission resource. The DCI is used for scheduling the uplink data or the downlink data of a plurality of carriers or the DCI is used for scheduling the uplink data or the downlink data of a plurality of discontinuous frequency domain resources, so that one DCI is used for scheduling the uplink data or the downlink data of a plurality of carriers, one DCI is used for scheduling the uplink data or the downlink data of a plurality of discontinuous frequency domain resources, and the data scheduling requirement is met.

Referring to fig. 5, fig. 5 is a flowchart illustrating a fourth embodiment of a data scheduling method according to the present disclosure, and step S402 includes:

in step S4021, first-stage DCI is received, where the first-stage DCI is at least used to indicate transmission resources of the second-stage DCI.

In this embodiment, the DCI includes first-stage DCI and second-stage DCI. The access device first sends the first-stage DCI, i.e. the user terminal receives the first-stage DCI. The first-level DCI is used to indicate at least transmission resources of the second-level DCI. The first-level DCI may indicate transmission resources of the second-level DCI through one field.

In step S4022, transmission resources of the second-level DCI are determined according to the first-level DCI.

After the access device sends the first-level DCI, the access device sends the second-level DCI, i.e. the user terminal receives the second-level DCI. The second-stage DCI is used to schedule uplink data or downlink data of a plurality of carriers, or the second-stage DCI is used to schedule uplink data or downlink data of a plurality of discontinuous frequency domain resources.

After receiving the second-level DCI, the user terminal can determine the transmission resource of the second-level DCI through the first-level DCI.

In step S4023, the second-level DCI is received on the transmission resource of the second-level DCI, where the second-level DCI is used to schedule uplink data or downlink data of multiple carriers, or the second-level DCI schedules uplink data or downlink data of multiple discontinuous frequency domain resources.

After determining the transmission resources of the second-stage DCI, the second-stage DCI is received from the transmission resources of the second-stage DCI. For example, the first-level DCI indicates that the transmission resource of the second-level DCI is PDSCH1, and the second-level DCI is received on PDSCH 1.

The carrier wave where the PDCCH for transmitting the first-stage DCI is located is the same as the carrier wave where the transmission resource of the second-stage DCI is located. For example, PDSCH0 is scheduled by the first-stage DCI, and the carrier on which PDSCH0 is located is the same as the carrier on which the PDCCH including the first-stage DCI is located.

In another example, the first-level DCI further includes a bitmap, each bit in the bitmap corresponds to one carrier, and the value of each bit is used to indicate uplink data or downlink data of a scheduling carrier corresponding to the bit, that is, the value of the bit in the bitmap is used to indicate that data transmitted on the carrier corresponding to the bit is uplink data or downlink data. In addition, the value of each bit can be used for indicating discontinuous frequency domain resources corresponding to the bit. When the second-level DCI includes PDSCH only or pdsch+pusch or the second-level DCI includes PUSCH only and pdsch+pusch, the first-level DCI indicates whether UL or DL is on a CC (Component Carrier, carrier) by means of bitmap. For example, there is a four carrier schedule, with 4bit bitmaps identifying DL or UL on each carrier; the bitmap is 0100, and the first carrier is the scheduled uplink data, the second carrier is the scheduled downlink data, and the third carrier and the fourth carrier are the scheduled uplink data. In this regard, after receiving the first-stage DCI, the user terminal obtains a bitmap of the first-stage DCI, and determines transmission resources of uplink data or downlink data of a carrier corresponding to the bits according to the values of the bits in the bitmap, or determines transmission resources of discontinuous frequency domain resources according to second index information included in the first-stage DCI.

In this way, the user terminal can determine the transmission resources of uplink data or downlink data of each carrier according to the second index information included in the first-stage DCI, or determine the transmission resources of discontinuous frequency domain resources according to the second index information included in the first-stage DCI.

PDSCH1 DCI

PDSCH2 DCI

……

PDSCHn DCI

PUSCH1 DCI

PUSCH2 DCI

……

PUSCHn DCI

The present disclosure also provides an access device, referring to fig. 6, an access device 600 includes:

an acquiring module 610, configured to acquire downlink control information DCI, where the DCI is used to schedule uplink data or downlink data of a plurality of carriers, or the DCI is used to schedule uplink data or downlink data of a plurality of discontinuous frequency domain resources;

a sending module 620, configured to send DCI.

In an embodiment, the DCI includes first index information, where the first index information is used to indicate a plurality of scheduled carriers or indicate a plurality of discontinuous frequency domain resources.

In one embodiment, the access device 600 includes:

a transmitting module 620, configured to transmit first-level DCI, where the first-level DCI is at least used to indicate transmission resources of the second-level DCI;

a sending module 620, configured to send second-level DCI, where the second-level DCI is used to schedule uplink data or downlink data of multiple carriers, or the second-level DCI schedules multiple discontinuous frequency domain resources.

In an embodiment, the first-stage DCI and/or the second-stage DCI includes first index information for indicating a plurality of carriers scheduled by the first-stage DCI and/or the second-stage DCI or indicating a plurality of discontinuous frequency domain resources scheduled by the first-stage DCI and/or the second-stage DCI.

In an embodiment, the first-level DCI further includes second index information, where the second index information is used to indicate that the second-level DCI schedules uplink data or downlink data of multiple carriers, or is used to indicate discontinuous frequency domain resources scheduled by the second DCI.

In an embodiment, the first-level DCI further includes format information of the second-level DCI.

In an embodiment, downlink control information DCI of each PDSCH or PUSCH scheduled by the second-level DCI is arranged in order of carriers.

In an embodiment, the downlink control information DCI of each PDSCH or PUSCH of the second level DCI degree includes a plurality of fields, and control information within the same type of fields is arranged in order of carriers.

The present disclosure also provides a user terminal, referring to fig. 7, a user terminal 700 includes:

A receiving module 710, configured to receive downlink control information DCI, where the DCI is used to schedule uplink data or downlink data of a plurality of carriers, or the DCI is used to schedule uplink data or downlink data of a plurality of discontinuous frequency domain resources;

a determining module 720, configured to determine transmission resources of uplink data or downlink data according to DCI;

a receiving module 710, configured to receive downlink data on a transmission resource or send uplink data on the transmission resource.

In one embodiment, the user terminal 700 includes:

a determining module 720, configured to determine a plurality of carriers or a plurality of discontinuous frequency domain resources according to the first index information in the DCI;

a determining module 720, configured to determine transmission resources of uplink data or downlink data of multiple carriers, or determine transmission resources according to multiple discontinuous frequency domain resources.

In one embodiment, the user terminal 700 includes:

a receiving module 710, configured to receive first-level DCI, where the first-level DCI is at least used to indicate transmission resources of second-level DCI;

a determining module 720, configured to determine transmission resources of the second-level DCI according to the first-level DCI;

the receiving module 710 is configured to receive second-level DCI on a transmission resource of the second-level DCI, where the second-level DCI is used to schedule uplink data or downlink data of a plurality of carriers, or the second-level DCI schedules uplink data or downlink data of a plurality of discontinuous frequency domain resources.

In one embodiment, the user terminal 700 includes:

a determining module 720, configured to determine transmission resources of downlink data or uplink data according to the indication information included in the first-level DCI.

In one embodiment, the user terminal 700 includes:

an acquisition module, configured to acquire a bitmap in the first-stage DCI;

the determining module 720 is configured to determine transmission resources of uplink data or downlink data of a carrier corresponding to the bit according to the value of the bit in the bitmap, or determine transmission resources of discontinuous frequency domain resources corresponding to the bit according to the value of the bit in the bitmap.

In one embodiment, the user terminal 700 includes:

a determining module 720, configured to determine transmission resources of uplink data or downlink data of each carrier according to the second index information included in the first-stage DCI, or determine transmission resources of discontinuous frequency domain resources according to the second index information included in the first-stage DCI.

Fig. 8 is a hardware block diagram of an access device/user terminal according to an exemplary embodiment.

The access device/user terminal 800 may include: a processor 81, such as a CPU, a memory 82, and a transceiver 83. Those skilled in the art will appreciate that the structure shown in fig. 8 does not constitute a limitation of the access device/user terminal and may include more or fewer components than shown, or may combine certain components, or may be arranged in different components. The memory 82 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

Processor 81 may call a computer program stored in memory 82 to perform all or part of the steps of the data scheduling method described above.

The transceiver 83 is used for receiving information transmitted from an external device and transmitting information to the external device.

A non-transitory computer readable storage medium, which when executed by a processor of an access device/user terminal, causes the access device/user terminal to perform the data scheduling method described above.

A computer program product comprising a computer program which, when executed by a processor of a transmitting end, enables an access device/user terminal to perform the above described data scheduling method.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A data scheduling method, applied to an access device, comprising:

and sending the DCI.

2. The method of claim 1, wherein the DCI includes first index information therein, the first index information being used to indicate the plurality of carriers scheduled or the plurality of discontinuous frequency domain resources scheduled.

3. The method of claim 1, wherein the DCI comprises a first-stage DCI and a second-stage DCI, and the transmitting the DCI comprises:

4. The method of claim 3, wherein the first-stage DCI and/or the second-stage DCI comprises first index information indicating the plurality of carriers scheduled by the first-stage DCI and/or the second-stage DCI or the plurality of discontinuous frequency domain resources scheduled by the first-stage DCI and/or the second-stage DCI.

5. The method of claim 3, wherein the first-level DCI further includes indication information, and the indication information is used to determine that the second-level DCI includes downlink grant information and/or uplink grant information.

6. The method of claim 3, wherein the first-level DCI further includes a bitmap, where a bit value in the bitmap is used to indicate that data transmitted on a carrier corresponding to the bit is uplink data or downlink data, or is used to indicate discontinuous frequency domain resources corresponding to the bit.

7. The method of claim 3, wherein the first-level DCI further includes second index information, where the second index information is used to indicate uplink data or downlink data of a plurality of carriers scheduled by the second-level DCI, or is used to indicate discontinuous frequency domain resources scheduled by the second DCI.

8. The method of claim 3, wherein the first-stage DCI further includes format information of the second-stage DCI.

9. The method of claim 3, wherein downlink control information of respective PDSCH or PUSCH scheduled by the second level DCI is arranged in order of carriers.

10. The method of claim 3, wherein the downlink control information DCI for each PDSCH or PUSCH of the second level DCI degree includes a plurality of fields, and control information within the same type of field is arranged in order of carriers.

11. A data scheduling method, applied to a user terminal, comprising:

12. The method of claim 11, wherein the DCI includes first index information, the first index information being used to indicate the scheduled plurality of carriers or indicate the scheduled plurality of discontinuous frequency domain resources, and the step of determining transmission resources of uplink data or downlink data according to the DCI includes:

13. The method of claim 11, wherein the DCI comprises first-level DCI and second-level DCI, and the receiving downlink control information DCI comprises:

14. The method of claim 13, wherein the first-stage DCI and/or the second-stage DCI includes first index information indicating the plurality of carriers scheduled by the first-stage DCI and/or the second-stage DCI or indicating the plurality of discontinuous frequency-domain resources scheduled by the first-stage DCI and/or the second-stage DCI.

15. The method according to claim 13, wherein the first-level DCI further comprises indication information, the indication information being used to determine that the second-level DCI includes downlink grant information and/or uplink grant information, and the step of determining transmission resources of uplink data or downlink data according to the DCI comprises:

16. The method of claim 13, wherein the first-level DCI further includes a bitmap, and the bit values in the bitmap are used to indicate that data transmitted on a carrier corresponding to the bit is uplink data or downlink data, or are used to indicate discontinuous frequency domain resources corresponding to the bit, and the step of determining, according to the DCI, transmission resources of the uplink data or the downlink data includes:

acquiring a bitmap in the first-stage DCI;

17. The method according to claim 13, wherein the first-stage DCI further includes second index information, the second index information being used to indicate that the second-stage DCI schedules uplink data or downlink data of a plurality of carriers or to indicate discontinuous frequency domain resources scheduled by the second DCI, and the step of determining transmission resources of the uplink data or the downlink data according to the DCI includes:

18. The method of claim 13, wherein the first-stage DCI further includes format information of the second-stage DCI.

19. The method of claim 13, wherein downlink control information, DCI, for each PDSCH or PUSCH, scheduled by the second level of DCI is ordered in the order of carriers.

20. The method of claim 13, wherein the downlink control information DCI for each PDSCH or PUSCH of the second level DCI degree includes a plurality of fields, and the control information within the same type of field is arranged in order of carriers.

21. An access device, comprising:

and a sending module, configured to send the DCI.

22. An access device, comprising: a memory and a processor;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory, causing the processor to perform the data scheduling method of any one of claims 1 to 10.

23. A user terminal, comprising:

24. A user terminal, comprising: a memory and a processor;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory, causing the processor to perform the data scheduling method of any one of claims 11 to 20.

25. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are for implementing a data scheduling method according to any one of claims 1 to 20.

26. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the data scheduling method of any one of claims 1 to 20.