CN112583545A

CN112583545A - Scheduling information indication method, network equipment and terminal

Info

Publication number: CN112583545A
Application number: CN201910927164.1A
Authority: CN
Inventors: 曾超君
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2021-03-30
Anticipated expiration: 2039-09-27
Also published as: CN112583545B

Abstract

The invention provides a scheduling information indication method, network equipment and a terminal, which improve the bit utilization rate of DCI. The method of the invention comprises the following steps: sending downlink control information DCI to a terminal; and the DCI comprises indication information expanded according to a preset rule. According to the network equipment, the number of idle bits in the DCI can be reduced and the bit utilization rate is improved by expanding the indication information according to the preset rule, and the idle bits are used for indicating some extra scheduling information and/or supplementary scheduling information transmitted in a best effort mode so as to optimize scheduling indication, increase the scheduling flexibility and improve the transmission performance.

Description

Scheduling information indication method, network equipment and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a scheduling information indication method, a network device, and a terminal.

Background

For NR-U (access to unlicensed spectrum based on new air interface) uplink Multi-TTI (multiple transmission time interval) scheduling, when the number of actually scheduled PUSCHs (uplink shared channels) of a single DCI (downlink control information) is less than the maximum number of PUSCHs that can be scheduled by the DCI, or in some specific scheduling cases (for example, the number of retransmitted PUSCHs scheduled by the DCI is less), some bits exist in the DCI and are not actually used, which results in waste of signaling bits.

Disclosure of Invention

The invention aims to provide a scheduling information indication method, network equipment and a terminal, and aims to solve the problem of signaling bit waste caused by idle bits in NR-U uplink Multi-TTI scheduling DCI in the prior art.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a scheduling information indication method, applied to a network device, including:

sending downlink control information DCI to a terminal;

and the DCI comprises indication information expanded according to a preset rule.

In a second aspect, an embodiment of the present invention further provides a scheduling information indicating method, applied to a terminal, including:

receiving downlink control information DCI sent by network equipment;

In a third aspect, an embodiment of the present invention further provides a network device, including:

a first sending module, configured to send downlink control information DCI to a terminal;

In a fourth aspect, an embodiment of the present invention further provides a terminal, including:

a first receiving module, configured to receive DCI sent by a network device;

In a fifth aspect, an embodiment of the present invention further provides a network device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the method for indicating scheduling information on the network device side.

In a sixth aspect, an embodiment of the present invention further provides a terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the scheduling information indication method at the terminal side.

In a seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method for indicating scheduling information at a network device side or a terminal side is implemented.

In the embodiment of the invention, downlink control information DCI is sent to a terminal; the DCI comprises indication information expanded according to a preset rule; the method can reduce the number of idle bits in the DCI, improve the utilization rate of the signaling bits, improve the transmission performance, and well solve the problem of signaling bit waste caused by the idle bits in the NR-U uplink Multi-TTI scheduling DCI in the prior art.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

Fig. 1 is a block diagram of a network system to which an embodiment of the present invention is applicable;

fig. 2 is a first flowchart illustrating a scheduling information indication method according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a scheduling information indication method according to an embodiment of the present invention;

FIG. 4 is a block diagram of a network device according to an embodiment of the present invention;

FIG. 5 is a block diagram of a network device according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a terminal module according to an embodiment of the present invention;

fig. 7 is a block diagram of a terminal structure according to an embodiment of the present invention;

fig. 8 is a block diagram of a terminal structure according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention, only the Base Station in the NR system is taken as an example, but does not limit the specific type of base station.

As shown in fig. 2, an embodiment of the present invention provides a scheduling information indication method, which is applied to a network device, and includes:

step 201: sending downlink control information DCI to a terminal;

Specifically, the preset rule includes at least one of the following rules: a first rule, according to idle bits in the DCI, extending an indication field of part or all of the indication information in the DCI; and a second rule, according to the idle bits in the DCI, adding at least one piece of the indication information in the DCI.

The following three examples are provided for the indication information in the embodiment of the present invention:

in an example one, the indication information includes redundancy version, RV, indication information corresponding to a data channel actually scheduled by the DCI;

correspondingly, the rule one comprises at least one of the following rules: rule 1, number of idle bits N in the DCI_restWhen the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI is larger than or equal to the threshold, adjusting the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI from a first value to a second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; the threshold is equal to the number N x (second value-first value) of data channels actually scheduled by the DCI; rule 2, at N_restIf the number of the indicating bits of the RV indicating information of the data channel actually scheduled by the DCI is larger than 0, selecting floor (N) from a preset index position_rest(second value-first value)) item RV indicating information, adjusting the indicating bit number of the selected RV indicating information from the first value to a second value until the indicating bit numbers of the RV indicating information of all data channels actually scheduled by the DCI are all adjusted to the second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; wherein the second value is greater than the first value, floor (A) represents rounding down A.

When the indicating bit number of a certain item of RV indicating information is a first value or a second value, the corresponding relation between various values of the RV indicating information and the actual meaning is specified by a protocol or configured to a terminal by a network.

Wherein, the preset index position is as follows: presetting a position for starting to select RV indication information; the position is expressed by using RV indication information index, namely, the complete item of RV indication information is selected each time;

the possible options for the preset index position include:

an option (1), wherein the position of the first RV indication information in the DCI (the corresponding selection mode is sequential selection);

option (2), the position of the last RV indication information in the DCI (the corresponding selection mode is reverse order selection);

an option (3), wherein the position of the RV indication information located at the middle position in the DCI (the corresponding selection mode is sequential or reverse;

under the option, if the corresponding selection mode is reverse order, and in the selection process, after the reverse order is selected to the position of the first RV indication information, the selection is continued, and then the reverse order selection is continued from the position of the last RV indication information in the DCI;

if the corresponding selection mode is sequential, in the selection process, sequentially selecting the position of the last RV indication information and then continuously selecting the RV indication information, and then continuously selecting the RV indication information from the position of the first RV indication information in the DCI).

Optionally, the difference between the second value and the first value is 1, specifically, the first value is 1, and the second value is 2.

Example two, the indication information includes modulation and coding scheme, MCS, information of the scheduled data channel, the MCS information including an MCS level or a modulation order corresponding to the MCS level; correspondingly, the rule two specifically includes: number of idle bits N in the DCI_restAnd when the number of the indicated bits of the MCS information is greater than or equal to the number of the indicated bits of the MCS information, using idle bits in the DCI to newly add at least one piece of the MCS information.

Optionally, the newly added MCS information is applied to all retransmission data channels scheduled by the DCI.

Optionally, when the MCS information includes an MCS level, the number of indicated bits of the MCS information is 5.

Optionally, when the MCS information includes a modulation order corresponding to an MCS level, the number of indicated bits of the MCS information is 2.

Example three, the indication information includes code block group transmission information CBGTI indication information;

correspondingly, the rule one comprises at least one of the following rules: rule 3, number of idle bits N in the DCI_restWhen the number of the indication bits corresponding to the actually used CBGTI indication information in the DCI is larger than or equal to M x (Applied _ CBG _ Num-Configured _ CBG _ Num), the number of the indication bits corresponding to the actually used CBGTI indication information in the DCI is adjusted by Configured _ CBG _ NumApplied _ CBG _ Num; otherwise, maintaining the indicating bit number corresponding to the actually used CBGTI indicating information in the DCI as Configured _ CBG _ Num; m represents the number of actually used items of the CBGTI indication information, Applied _ CBG _ Num represents the maximum number of Code Block Groups (CBG) which actually take effect, Configured _ CBG _ Num represents the maximum number of CBG supported by a single Transport Block (TB), and Configured _ CBG _ Num can be specified by a protocol or Configured to a terminal by a network through high-layer signaling;

rule 4, in N_restIf the number of the indicating bits corresponding to the actually used CBGTI indicating information in the DCI is larger than 0, circularly executing preset operation until a preset execution termination condition is met, and stopping execution; the preset operation comprises the following steps: selecting part or all of actually used CBGTI indication information from a preset index position, and adjusting the indication bit number corresponding to the selected CBGTI indication information from a current value to a next allocable value; wherein the next matchable value is a configuration value adjacent to the current value, and the next matchable value is greater than the current value.

Wherein, the index position is set as: presetting a position for starting to select actually used CBGTI indication information; the position is expressed by using a CBGTI indication information index, namely, the complete CBGTI indication information is ensured to be selected each time;

the possible options for the preset index position include:

an option (1), namely the position of the first actually used CBGTI indication information in the DCI (the corresponding selection mode is sequential selection);

option (2), the position of the last actually used CBGTI indication information in the DCI (the corresponding selection mode is reverse order selection);

an option (3), where the actually used CBGTI indication information is located in the middle position in the DCI (the corresponding selection mode is sequential or reverse);

for any option, under the condition that the corresponding selection mode is reverse order, in the selection process, after the reverse order is selected to the position of the first actually used CBGTI indication information, the selection is continued, and the reverse order selection is continued from the position of the last actually used CBGTI indication information in the DCI;

and under the condition that the corresponding selection mode is sequential, sequentially selecting the position of the last actually used CBGTI indication information in the selection process, and then continuing to select the position of the last actually used CBGTI indication information, and then continuing to select the sequence from the position of the first actually used CBGTI indication information in the DCI.

Optionally, the current value is 2, and the next matchable value is 4; or, the current value is 4 and the next matchable value is 6; or, the current value is 7 and the next matchable value is 8; both the current value and the next allocable value may not exceed the threshold value, and the threshold value may be the maximum allocable value of the following protocol, but is not limited thereto.

Specifically, the preset termination execution condition includes at least one of the following conditions:

no more idle bits remain in the DCI;

the rest bits in the DCI do not support the adjustment of the indicating bit number corresponding to the CBGTI indicating information actually used for a single item;

all the indicating bit numbers corresponding to the actually used CBGTI indicating information are adjusted to be the maximum allocable value of the protocol;

all the indicating bit numbers corresponding to the actually used CBGTI indicating information are adjusted to values specified by a protocol;

the indication bit number corresponding to all the actually used CBGTI indication information has enlarged the maximum amplification specified by the protocol;

the expansion times of the indicating bit number corresponding to all the actually used CBGTI indicating information reach the maximum expansion times specified by a protocol;

all the indicating bit numbers corresponding to the actually used CBGTI indicating information are adjusted to values pre-configured by the high-level signaling;

the indication bit number corresponding to all the actually used CBGTI indication information has enlarged the maximum amplification degree configured in advance by the high-level signaling;

and the expansion times of the indicating bit number corresponding to all the actually used CBGTI indicating information reach the maximum expansion times preset by the high-level signaling.

The scheduling information indication method provided by the embodiment of the invention sends downlink control information DCI to a terminal; and the DCI comprises indication information expanded according to a preset rule. According to the embodiment of the invention, the network equipment can reduce the number of idle bits in the DCI by expanding the indication information according to the preset rule, improve the utilization rate of the signaling bits, and use the idle bits for indicating some extra scheduling information and/or supplementary scheduling information transmitted in a best effort manner so as to optimize the scheduling indication, increase the scheduling flexibility and improve the transmission performance.

As shown in fig. 3, an embodiment of the present invention further provides a scheduling information indicating method, which is applied to a terminal, and includes:

step 301: receiving downlink control information DCI sent by network equipment;

correspondingly, the rule one comprises at least one of the following rules: rule 1, number of idle bits N in the DCI_restWhen the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI is larger than or equal to the threshold, adjusting the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI from a first value to a second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; the threshold is equal to the number N x (second value-first value) of data channels actually scheduled by the DCI; rule 2, at N_restGreater than 0, actual for the DCISelecting floor (N) from preset index position according to indication bit number of RV indication information of scheduled data channel_rest(second value-first value)) item RV indicating information, adjusting the indicating bit number of the selected RV indicating information from the first value to a second value until the indicating bit numbers of the RV indicating information of all data channels actually scheduled by the DCI are all adjusted to the second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; wherein the second value is greater than the first value, floor (A) represents rounding down A.

the possible options for the preset index position include:

the position of the first RV indication information in the DCI (1) is selected (the corresponding selection mode is sequential selection);

option (2) the position of the last RV indication information in the DCI (the corresponding selection mode is reverse order selection);

option (3) a position of the RV indication information located at the middle position in the DCI (the corresponding selection manner is sequential or reverse;

correspondingly, the rule one comprises at least one of the following rules: rule 3, number of idle bits N in the DCI_restWhen the number of the indication bits corresponding to the actually used CBGTI indication information in the DCI is greater than or equal to M x (Applied _ CBG _ Num-Configured _ CBG _ Num), adjusting the indication bits corresponding to the actually used CBGTI indication information in the DCI from Configured _ CBG _ Num to Applied _ CBG _ Num; otherwise, maintaining the indicating bit number corresponding to the actually used CBGTI indicating information in the DCI as Configured _ CBG _ Num; m represents the number of actually used items of the CBGTI indication information, Applied _ CBG _ Num represents the maximum number of Code Block Groups (CBG) which actually take effect, Configured _ CBG _ Num represents the maximum number of CBG supported by a single Transport Block (TB), and Configured _ CBG _ Num can be specified by a protocol or Configured to a terminal by a network through high-layer signaling;

rule 4, in N_restIf the number of the indicating bits corresponding to the actually used CBGTI indicating information in the DCI is larger than 0, circularly executing preset operation until a preset execution termination condition is met, and stopping execution; the preset operation comprises the following steps: selecting part or all of actually used CBGTI indication information from a preset index position, and selecting the CBGTI indication informationAdjusting the indicating bit number corresponding to the CBGTI indicating information to be the next allocable value from the current value; wherein the next matchable value is a configuration value adjacent to the current value, and the next matchable value is greater than the current value.

the possible options for the preset index position include:

no more idle bits remain in the DCI;

The scheduling information indication method provided by the embodiment of the invention receives downlink control information DCI sent by network equipment; and the DCI comprises indication information expanded according to a preset rule. The terminal receives the indication information expanded according to the preset rule and is subsequently used for identification and analysis, so that the number of idle bits in DCI can be reduced, the utilization rate of signaling bits can be improved, and the idle bits are used for indicating some extra scheduling information and/or supplementary scheduling information transmitted in a best effort manner, so that scheduling indication is optimized, the scheduling flexibility is increased, and the transmission performance is improved.

As to which rule is specifically used by the network device to extend the preset information, the terminal may learn by at least one of the following manners:

in a first mode, the indication may be performed in an indication field located at the front of the DCI carrying the preset information (located before the preset information indication field);

in the second mode, the network is pre-configured to the terminal;

and in the third mode, protocol agreement is carried out between the network equipment and the network equipment.

The scheduling information indication method provided by the embodiment of the present invention is further illustrated below with reference to the network device and the terminal, and the PUSCH is taken as an example for the data channel.

Consider that: for NR-U uplink Multi-TTI scheduling, when the number of PUSCHs actually scheduled by a single DCI is smaller than the maximum number of PUSCHs schedulable by the DCI, the fields such as NDI and RV corresponding to the PUSCHs not actually scheduled in the DCI are not actually used, and the application of the CBGTI indication method newly introduced for CBG-based retransmission scheduling may also cause some bit fields corresponding to CBGTI indication information not actually used in the scheduled DCI, and bits (hereinafter referred to as the idle bits) corresponding to these fields may be used to indicate some extra scheduling information and/or supplementary scheduling information that is transmitted as best as possible, so as to optimize the scheduling indication, increase the scheduling flexibility and improve the transmission performance.

Therefore, the embodiment of the present invention provides a scheduling information indication method, and specifically, the following additional scheduling information and/or supplementary scheduling information indication method may be considered, or multiple methods may be used in combination (at this time, boundaries of idle bits occupied by various methods need to be determined to avoid inconsistency of understanding of the network device and the terminal UE about the indication information):

the method comprises the following steps: extending the indication bit number of redundancy version RV indication information corresponding to the PUSCH actually scheduled by the DCI (the indication information comprises the redundancy version RV indication information corresponding to the data channel actually scheduled by the DCI)

In LTE-LAA (LTE-based licensed spectrum assisted access to unlicensed spectrum), 1 bit is reserved in DCI Format 0B or 4B for uplink Multi-TTI scheduling for each schedulable Subframe for indicating redundancy version of the corresponding PUSCH transmission.

In NR (new air interface), the uplink scheduling DCI Format 0_0 or 0_1 indicates a redundancy version corresponding to PUSCH transmission using 2 bits.

To control the DCI size for NR-U uplink Multi-TTI scheduling, 1 bit may be reserved in the DCI for each schedulable PUSCH to indicate its redundancy version, similar to LTE-LAA. Suppose that at most N can be scheduled simultaneously per DCI_maxPUSCH, N_maxThe number of bits occupied by the indication field for indicating the redundancy version of each scheduled PUSCH in DCI is N, which may be specified by a protocol or pre-configured to the UE by the network through higher layer signaling_max. Assuming that the number of actually scheduled PUSCHs of a certain DCI is N, the following certain manner may be adopted to extend the redundancy version corresponding to the PUSCH indicating actual scheduling:

method 1-1: the requirement of the indicating bit number of the redundancy version RV indicating information of all practically scheduled PUSCHs is equal

And when the number of idle bits in the DCI is greater than or equal to N, adjusting the indicating bit number of the redundancy version RV indicating information of each practically scheduled PUSCH from 1 to 2, and otherwise, keeping 1 bit unchanged.

The idle bits here may be limited to (at least include) bits that are not actually used in the indication field for indicating the redundancy version of each scheduled PUSCH, N_maxN bits, and may also include other bits in the DCI that are not actually used by the indication field.

Method 1-2: indication bit number of redundancy version RV indication information of all practically scheduled PUSCHs is allowed to be unequal

When the number of idle bits in the DCI is greater than 0, N is assumed_restN is selected from the preset index position_restE.g. the first N_restN at the end, or last_restThe number of indicating bits of the redundancy version RV indicating information of the practically scheduled PUSCHs is adjusted from 1 to 2 until the number of indicating bits of the redundancy version RV indicating information of all the practically scheduled PUSCHs is adjusted to 2; otherwise (i.e. when the number of idle bits in the DCI is not greater than 0), the number of indicating bits of the redundancy version RV indication information of each actually scheduled PUSCH is kept unchanged at 1.

Herein the idle ratioThe bits may be limited to (at least include) bits not actually used in the indication field for indicating the redundancy version of each scheduled PUSCH, N_maxN bits, and may also include other bits in the DCI that are not actually used by the indication field.

The method can improve the indication precision of the RV indication information.

The second method comprises the following steps: additionally indicating a Modulation and Coding Scheme (MCS) level or a Modulation order of a retransmission PUSCH (Modulation and Coding Scheme) (corresponding to the indication information including Modulation and Coding Scheme (MCS) information of a scheduling data channel, the MCS information including the MCS level or the Modulation order corresponding to the MCS level)

In LTE-LAA, all scheduled PUSCHs (or codewords with the same number of all scheduled PUSCHs) in DCI Format 0B or 4B for uplink Multi-TTI scheduling apply the same "Modulation and coding scheme" field or "Modulation and coding scheme and redundancy version" field (the "Modulation and coding scheme" field corresponds to DCI Format 0B, and the "Modulation and coding scheme and redundancy version" field corresponds to DCI Format 4B).

For NR-U, the network may use idle bits to indicate an extra MCS level for all retransmitted PUSCHs in all PUSCHs scheduled by a single DCI (i.e. the same extra MCS level applies to all retransmitted PUSCHs scheduled by this DCI), e.g. to indicate a reserved MCS level, to instruct the UE to keep the TB Size (transport block Size) corresponding to each retransmitted PUSCH unchanged, and each retransmitted PUSCH uses a modulation order corresponding to this reserved MCS level. Optionally, in the DCI, only one uniformly applied modulation order may be indicated for all retransmitted PUSCHs, and the UE is required to keep the TB Size unchanged for all retransmitted PUSCHs (the number of bits required for indicating a single modulation order is less than that for indicating a single MCS level; the correspondence between various values of the indication bits and specific modulation orders may be specified by a protocol, or configured to the UE by the network through high-layer signaling).

When the number of idle bits in the DCI is greater than or equal to the indicated bit number of the MCS level or the modulation order, the network additionally indicates one MCS level or modulation order by using the idle bits in the DCI, otherwise, the idle bits are not indicated.

The MCS information of the additional indication may be different from the existing MCS information in the DCI, such as: the existing MCS information is an MCS level, and the additionally indicated MCS information may be an MCS level or a modulation order.

The idle bits herein may be limited to (at least include) bits that are not actually used in a certain indication field (e.g., an indication field of redundancy version RV, new data indication NDI, or code block group information transmission CBGTI indication information), or may include bits that are not actually used in all other indication fields in DCI.

The method can increase MCS indication information and improve the scheduling flexibility.

The third method comprises the following steps: adaptive expansion of actually effective maximum number of Code Block Groups (CBGs)

In NR, the maximum number of CBGs supported by a single TB is 2,4,6 or 8, pre-configured by the network to the UE through higher layer signaling.

Assuming uplink Multi-TTI scheduling for NR-U, in order to control the number of bits for scheduling DCI, a smaller maximum CBG number is generally configured and applied to each scheduled PUSCH, or each scheduled retransmission PUSCH, or a certain number of PUSCHs in the scheduled PUSCH. When there are idle bits in DCI, the number of indication bits corresponding to part or all of the actually used CBGTI indication information (equal to the configured maximum CBG number before adaptive expansion) may be adaptively expanded to a larger certain configurable value (corresponding to the synchronous increase of the maximum CBG number, for example, from 4 to 6 or 8, the target value of the expansion operation is required to be in the value set allowed by the protocol). Optionally, it may be assumed that the number of indicating bits corresponding to the CBGTI indication information is always equal to the maximum CBG number, and the CBGTI indication information and the maximum CBG number are adjusted synchronously.

Assuming that the maximum number of CBGs supported by a single TB is Configured as Configured _ CBG _ Num and is not the maximum allocable value of the protocol 8, the maximum allocable CBGTI indication information item number in a single DCI is M_maxThe number of actually used entries is M, and the maximum number of CBG Applied _ CBG _ Num that actually takes effect can be adaptively expanded in a certain manner as follows:

method 3-1: after expansion, the requirement of indicating bit number corresponding to all actually used CBGTI indicating information is equal

When the number of idle bits in the DCI is greater than or equal to M × (Applied _ CBG _ Num-Configured _ CBG _ Num), adjusting the number of indicating bits corresponding to each actually used CBGTI indication information from Configured _ CBG _ Num to Applied _ CBG _ Num, otherwise keeping the bits of Configured _ CBG _ Num unchanged (adjustment of the number of indicating bits corresponding to a certain actually used CBGTI indication information corresponds to equivalent adjustment of the maximum number of CBGs supported by TBs corresponding to PUSCH transmission Applied by this CBGTI indication information).

The idle bits may be limited to (at least include) bits that are not actually used in the indication field for indicating the used CBGTI indication information (which may also be understood as indication bits corresponding to the CBGTI indication information that is not actually used; or may be understood as that the indication field in the DCI is always M_maxItem CBGTI indication information reserves indication bit, but some DCI transmission or reception actually uses only former M item, or total M item CBGTI indication information of some positions, then the DCI is remained (M_maxThe indication information of CBGTI of the-M) item is not needed to be used, and the corresponding indication bit is not actually used and can be used as a free bit here) which is (M)_maxM) x Configured _ CBG _ Num bits, and may also include other single or all bits in the DCI that indicate that the field is not actually used.

Method 3-2: after expansion, the indication bit numbers corresponding to all actually used CBGTI indication information are allowed to be unequal

At this time, idle bits can be preferentially used to adjust the indicating bit number corresponding to all actually used CBGTI indicating information from Configured _ CBG _ Num to a next larger allocable value, and when the idle bits are not enough, the indicating bit number corresponding to only part of actually used CBGTI indicating information from a preset index position (for example, the first or last) can be adjusted; if the spare bits are still surplus, further adjusting the indicating bit number corresponding to all or part of actually used CBGTI indication information to a next larger allocable value until the following conditions are met:

the idle bits are exhausted or do not support further adjustment for the indicated bit number corresponding to the single actually used CBGTI indication information, or,

the indicating bit number corresponding to all actually used CBGTI indicating information has been adjusted to the maximum allocable value of the protocol, or,

all the indicating bit numbers corresponding to the actually used CBGTI indicating information have been adjusted to the value specified by the protocol, or,

the number of indicating bits corresponding to all actually used CBGTI indicating information is enlarged by the expandable amplification specified by the protocol, or

The expansion times of the indicated bit numbers corresponding to all actually used CBGTI indication information have reached the maximum expansion times specified by the protocol, or,

the indicating bit number corresponding to all actually used CBGTI indicating information has been adjusted to the value pre-configured by the higher layer signaling, or,

the number of indicating bits corresponding to all actually used CBGTI indication information has been increased by the pre-configured, expandable amplification of the higher layer signaling, or,

and the expansion times of all the indicating bit numbers corresponding to all the actually used CBGTI indicating information reach the maximum expansion times preset by the high-level signaling.

Finally, the indicating bit numbers corresponding to the actually used CBGTI indicating information are equal or are adjacent to each other in a matchable value set from small to large (such as {2,4,6,8 }).

The scheme provided by the embodiment of the present invention may also be applied to downlink (for example, downlink Multi-TTI scheduling), and is not limited herein.

The above examples provided by the embodiments of the present invention mainly relate to:

for NR-U Multi-TTI scheduling, idle bits in the scheduling DCI are used to indicate some extra scheduling information and/or supplementary scheduling information for best-effort transmission to optimize the scheduling indication, increase the scheduling flexibility and improve the transmission performance, and three indication methods are specifically considered:

the method comprises the following steps: expanding the indication bit number of redundancy version RV indication information corresponding to the PUSCH which indicates actual scheduling;

the second method comprises the following steps: additionally indicating the MCS level or modulation order of the retransmission PUSCH;

the third method comprises the following steps: the maximum number of CBGs that actually take effect is adaptively extended.

As can be seen from the above, the scheme provided by the embodiment of the present invention can fully utilize the idle bits in the scheduling DCI to indicate the additional scheduling information and/or the supplemental scheduling information, so as to optimize the scheduling indication, increase the scheduling flexibility, and improve the transmission performance.

The following describes the content of confirming the "idle bit", and whether the "idle bit" exists in the DCI can be confirmed according to the following content, taking uplink transmission as an example.

(1) With respect to an unlicensed communication system:

in future communication systems, an Unlicensed Band (Unlicensed Band) may be used as a supplement to a Licensed Band (Licensed Band) to help an operator to expand the capacity of services. Since the unlicensed band is shared by multiple technologies (RATs), such as Wi-Fi, radar, LTE-based Licensed-Assisted Access (LTE-LAA), etc., in some countries or regions, the unlicensed band must be used according to regulatory rules to ensure that all devices can fairly share the resources, such as Listen Before Talk (LBT), Maximum Channel Occupancy Time (MCOT), etc. When a transmission node needs to send information, it is required to perform LBT on a specified wireless channel first, and perform Energy Detection (ED) on the surrounding wireless transmission environment, and when the Energy is lower than a certain threshold, the channel is judged to be idle, and then transmission can be started. Otherwise, the channel is judged to be busy, and the transmission node can not transmit. The transmitting node may be a base station, a UE, a Wi-Fi AP (access point), etc. After the transmission node starts transmission, the occupied channel time cannot exceed the MCOT.

(2) Regarding Multi (Multi) -PUSCH scheduling:

in LTE-LAA, a concept of Multiple PUSCH Subframe scheduling is introduced, a single DCI (DCI Format 0B or 4B) may schedule 1 to Multiple subframes that are consecutive in Time for transmitting PUSCH, so as to save overhead of sending DCI by a base station, reduce a requirement of a UE to perform LBT, and reduce a requirement of introducing Multiple uplink and downlink switching points in a COT (Channel Occupancy Time) initiated by the base station (typically, only a single uplink and downlink switching point may be set in the COT, PDCCH (downlink control Channel) or PDSCH (downlink shared Channel) transmission is performed in the first half of the COT, and PUSCH or PUCCH (uplink control Channel) or SRS (sounding reference signal) transmission is performed in the second half of the COT). A single DCI may schedule at most 4 time-consecutive subframes, where a first subframe may occupy part or all of OFDM symbols including a last OFDM (orthogonal frequency division multiplexing) symbol and ensure that all occupied OFDM symbols are consecutive, a last subframe may occupy part or all of OFDM symbols including a first OFDM symbol and ensure that all occupied OFDM symbols are consecutive, and a middle subframe occupies all OFDM symbols. All OFDM symbols occupied within each subframe are mapped by a single PUSCH and correspond to a single HARQ (hybrid automatic repeat request) process. The IDs (identities) of the HARQ processes corresponding to one to a plurality of subframes of a single DCI scheduling are continuous.

In the embodiment of the present invention, the concept of aggregate transmission is also introduced for the PUSCH or PDSCH, that is, for a set of symbols allocated in a single time slot, the aggregate transmission repeatedly occurs in a plurality of consecutive time slots based on a configured Aggregation Factor (i.e., there are identical sets of symbols in all N consecutive time slots specified by the Aggregation Factor N for carrying the scheduled PUSCH or PDSCH). The PUSCHs or PDSCHs transmitted in the plurality of time slots aim at the same HARQ process, and the redundancy version RV corresponding to the PUSCH or PDSCH transmission in each time slot is set according to a predefined value sequence based on the DCI indicated value.

The concept similar to the Multiple PUSCH Subframe scheduling in LTE-LAA is also introduced in NR-U (NR-based Access to Unlicensed Spectrum based on NR Access). Based on the flexibility of NR in time domain resource allocation, the Subframe concept can be replaced by Slot (time Slot) or Mini-Slot (micro-Slot) concept accordingly, the resource mapping of a single PUSCH is not allowed to cross the Slot boundary.

(3) Regarding NR CBG (code block group) based HARQ-ACK (automatic repeat request acknowledgement) feedback and retransmission:

when the data size of a single transport Block TB is large, in order to facilitate coding and decoding, based on the coding rule in LTE or NR, it is necessary to first truncate the data of the transport Block to form a plurality of Code Blocks (CBs), and then Code each CB. When the number of the CBs split by a single transport block is large, the data of each CB is mapped to different time-frequency resources, the channel fading and interference conditions experienced by different CBs in the transmission process may be different, and the situations that some CBs are successfully decoded and some CBs are unsuccessfully decoded and the whole transport block needs to continue to perform HARQ retransmission often occur. In this case, in order to avoid retransmitting the CBs that have been successfully transmitted, CBG-based HARQ-ACK feedback and retransmission are introduced in the NR, that is, all CBs corresponding to a single transport Block are divided into a plurality of CB groups (CBGs) based on a predefined rule, and HARQ-ACK is fed back for each CBG (for downlink transmission only, the UE feeds back HARQ-ACK to the network) and retransmission is scheduled. When scheduling retransmission based on CBG, the network includes a "CBG transmission information (CBGTI)" field in the (uplink or downlink) scheduling DCI, which is used to indicate which CBGs need to be retransmitted, and the UE only performs retransmission operations for all CBGs indicated by the CBGTI field.

(4) CBGTI indication scheme for NR-U uplink Multi-TTI scheduling:

in the embodiment of the invention, the following options are formed for the indication of the NR-U uplink CBGTI domain scheduled by Multi-TTI:

for multiple PUSCHs scheduled by a single DCI// For multiple PUSCHs scheduled by a single DCI

·……

If the multi-TTI scheduling supports retransmission based on the code block group, at least the following options may be considered to indicate the CBGTI field in the DCI;

-Option 1: per re-transmitted PUSCH// Option 1: indicating CBGTI for each retransmission PUSCH

-Option 2: per PUSCH// Option 2: indicating CBGTI for each PUSCH

-Option 3: only for a fixed number of PUSCHs// Option 3: indicating CBGTI only for a fixed number of PUSCHs

·……

In the embodiment of the present invention, the indication of CBGTI is generally understood as: there may be a bit field in the Multi-TTI scheduling DCI, and Mmax CBGTI indication information may be indicated, and the specific indication manner of the CBGTI indication information may be according to some Option (Option) described above.

(5) DCI indication for NR-U uplink Multi-TTI scheduling:

in the embodiment of the present invention, for an indication field in NR-U uplink Multi-TTI scheduling DCI, the relevant specification includes:

formultiple PUSCHs scheduled by a single DCI// For multiple PUSCHs scheduled by a single DCI

The following fields in The following DCI are indicated for each scheduled PUSCH

-NDI// new data indication

RV// redundancy version

·……

Based on the above conclusion, in the scheduling DCI, there are some pieces of information respectively indicated for each scheduling PUSCH, and in the embodiment of the present invention, the confirmed information at least includes an NDI (New Data Indicator), an RV (Redundancy Version), and the like. Because the bit number requirement of the scheduling DCI cannot be changed frequently (configured semi-statically by the network side) to ensure that the DCI bit numbers are understood consistently by both the network and the terminal, but the number of actually scheduled PUSCHs of each scheduling DCI typically changes dynamically to match the actual scheduling requirement, the bit field indicated for each scheduled PUSCH in the scheduling DCI can only reserve bits according to the maximum schedulable PUSCH number, and when the number of actually scheduled PUSCHs in a certain scheduling DCI (which is required not to exceed the maximum schedulable PUSCH number) is less than the maximum schedulable PUSCH number, there are some bits that are actually unused, i.e., idle bits.

(6) And (3) determination of NR uplink scheduling modulation order and target code rate:

the Modulation and coding scheme of PUSCH transmission application is indicated by a "Modulation and Coding Scheme (MCS)" field of DCI Format 0_0 or 0_1, the "Modulation and coding scheme" field is composed of 5 bits and indicates an MCS index I with the value of 0-31_MCS. Based on I_MCSAn application table corresponding to a certain condition determines a Modulation Order (Q) of PUSCH transmission application_mAnd Target Code Rate (Target Code Rate) R:

1) when Transform Precoding is not enabled,

table2 is applied when 256QAM (quadrature amplitude modulation) is supported;

when only 64QAM is supported and low spectral efficiency is used, Table3 is applied;

table1 is applied when only 64QAM is supported and conventional spectral efficiency is used.

2) When Transform Precoding is enabled,

when 256QAM is supported, Table2 is applied;

when only 64QAM is supported and low spectral efficiency is used, Table5 is applied;

table4 is applied when only 64QAM is supported and conventional spectral efficiency is used.

Table 1: MCS index table1 of PDSCH

Table 2: MCS index table2 of PDSCH

Table 3: MCS index table3 of PDSCH

Table4 MCS index Table1 of PUSCH applying transform precoding and 64QAM

Table5 MCS index Table2 of PUSCH applying transform precoding and 64QAM

Q in Table4 and Table5 above is used for: the modulation order of the scheduled PUSCH transmission is determined based on whether a higher layer is configured to use pi/2-BPSK (pi, circumferential rate) when transform precoding is turned on. If the network is configured with the higher layer parameter tp-pi2BPSK (i.e. indicates that the terminal uses pi/2-BPSK when switching precoding on), q is 1, otherwise q is 2. BPSK stands for binary phase shift keying.

(7) Determination of NR uplink scheduling redundancy version:

a 2-bit Redundancy version field is present in the NR uplink scheduling DCI Format 0_0 or 0_1, and is used to indicate the Redundancy version of the transport block corresponding to the scheduled PUSCH transmission. The meaning of various values in the 2-bit field is shown in Table 6.

Table 6 redundancy version RV

(8) Determination of NR uplink scheduling TB Size

When determining the bit number of a Transport Block (TB) corresponding to a PUSCH of a certain Transport Block (TB), two cases are distinguished:

the first condition is as follows: i is_MCSCorresponding to the conventional MCS level, the target code rate R is indicated

For dynamic scheduling, I_MCSThe field of "Modulation and coding scheme" of DCI Format 0_0 or 0_1 takes value. Here, "corresponding to the regular MCS level" means I_MCSCorresponding Table1"target code rate R x [1024 ] in Table2, Table3, Table4 or 5]The columns "column" and "spectral efficiency" column do not take the row "reserved", and the target code rate R may be explicitly indicated.

The UE firstly determines the effective RE (resource element) number N of the PUSCH bearing TB based on the following process_RE：

1) Determining the number of REs N 'allocated for PUSCH transmission within a single PRB (Physical Resource Block)'_RE：

Indicating a number of subcarriers within a single PRB;

the number of symbols occupied by PUSCH;

a number of REs for DM-RS (demodulation reference Signal) transmission within each PRB;

for overhead configured by higher layer parameters, if the higher layer is not configured, then assume

2) Re-determining N_REThe value of (A) is as follows:

N_RE＝min(156，N'_RE)×n_PRB；

n_PRBthe number of PRBs occupied for PUSCH.

Then, the UE bases on the N_REFrom I_MCS(for dynamic scheduling, the value of the Modulation and coding scheme field of DCI Format 0_0 or 0_ 1) determined target code rate R and Modulation order Q_mAnd determining the bit number of the TB through operations of quantization, table look-up and the like on the layer number upsilon of the TB mapping.

Case two: i is_MCSCorresponding to reserved MCS level, target code rate R is not indicated

Here, "corresponding reserved MCS level" means I_MCSCorresponding to the target code rate Rx [1024 ] in 1, Table2, Table3, Table4 or Table5]The column and the row with the spectral efficiency column being 'reserved', the target code rate R is not explicitly indicated at this time, and only the modulation order Q is indicated_mTo guide the modulation operation.

At this point the UE assumes that the TB Size is equal to the TB Size that scheduled the same TB and indicated using the last DCI of the regular MCS level.

(9) Determination of modulation order and TBS (TB Size) level for LTE or LTE-LAA uplink scheduling

For the uplink scheduling of LTE or LTE-LAA, a 5-bit Modulation and coding scheme field or a Modulation and coding scheme and reduction field in uplink scheduling DCI is used to indicate the I with the value of 0-31_MCS. Based on I_MCSAn application table corresponding to the following condition is used for determining a Modulation Order (Modulation Order) Q 'of the PUSCH transmission application'_mAnd TBS grade I_TBS：

When 256QAM is not supported, Table 7 is applied;

when 256QAM is supported, Table8 is applied;

table 7 modulation of PUSCH, TBS index and redundancy version Table1

Table8 modulation of PUSCH, TBS index and redundancy version Table2

(10) Determination of uplink scheduling redundancy version for LTE or LTE-LAA

For redundancy version rv_idxThe following rules are adopted for the determination of (1):

1) for LTE, based on I_MCSAnd applying Table 7 or Table8 to determine rv_idxNamely, the value of the 'redundancy version index' column in the table is used;

2) for the case of the LTE-LAA,

when the scheduling is carried out by the DCI Format 0A or 4A, the rv value is determined by a 2-bit 'Redundancy version' field in the DCI, and the Redundancy version rv corresponding to the scheduled single PUSCH_idx＝rv；

When scheduled by DCI Format 0B or 4B, each scheduled PUSCH has rv values indicated by a corresponding 1 bit in the "Redundancy version" field, with the corresponding Redundancy version rv for each PUSCH_idx＝2×rv。

As shown in fig. 4, an embodiment of the present invention further provides a network device 400, including:

a first sending module 401, configured to send downlink control information DCI to a terminal;

Example two, the indication information includes modulation and coding scheme, MCS, information of the scheduled data channel, the MCS information including an MCS level or a modulation order corresponding to the MCS level; the rule two specifically includes: number of idle bits N in the DCI_restAnd when the number of the indicated bits of the MCS information is greater than or equal to the number of the indicated bits of the MCS information, using idle bits in the DCI to newly add at least one piece of the MCS information.

correspondingly, the rule one comprises at least one of the following rules: rule 3, number of idle bits in the DCIMesh N_restWhen the number of the indication bits corresponding to the actually used CBGTI indication information in the DCI is greater than or equal to M x (Applied _ CBG _ Num-Configured _ CBG _ Num), adjusting the indication bits corresponding to the actually used CBGTI indication information in the DCI from Configured _ CBG _ Num to Applied _ CBG _ Num; otherwise, maintaining the indicating bit number corresponding to the actually used CBGTI indicating information in the DCI as Configured _ CBG _ Num; m represents the number of actually used items of the CBGTI indication information, Applied _ CBG _ Num represents the maximum number of Code Block Groups (CBG) which actually take effect, Configured _ CBG _ Num represents the maximum number of CBG supported by a single Transport Block (TB), and Configured _ CBG _ Num can be specified by a protocol or Configured to a terminal by a network through high-layer signaling;

no more idle bits remain in the DCI;

The network equipment provided by the embodiment of the invention sends downlink control information DCI to a terminal; and the DCI comprises indication information expanded according to a preset rule. According to the embodiment of the invention, the network equipment can reduce the number of idle bits in the DCI by expanding the indication information according to the preset rule, improve the utilization rate of the signaling bits, and use the idle bits for indicating some extra scheduling information and/or supplementary scheduling information transmitted in a best effort manner so as to optimize the scheduling indication, increase the scheduling flexibility and improve the transmission performance.

An embodiment of the present invention further provides a network device, including: the method comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the computer program, when executed by the processor, implements each process in the method embodiment of the scheduling information indication method applied to the network device, and can achieve the same technical effect, and is not described herein again to avoid repetition.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process in the scheduling information indication method embodiment applied to the network device, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

As shown in fig. 5, an embodiment of the present invention further provides a network device 500, which includes a processor 501, a transceiver 502, a memory 503, and a bus interface, where: the processor 501 is used for reading the program in the memory 503 and executing the following processes:

transmitting downlink control information DCI to a terminal through a transceiver 502;

In fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 501 and various circuits of memory represented by memory 503 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 502 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

Optionally, the preset rule includes at least one of the following rules: a first rule, according to idle bits in the DCI, extending an indication field of part or all of the indication information in the DCI; and a second rule, according to the idle bits in the DCI, adding at least one piece of the indication information in the DCI.

Optionally, the indication information includes redundancy version, RV, indication information corresponding to a data channel actually scheduled by the DCI;

the rule one comprises at least one of the following rules: rule 1, number of idle bits N in the DCI_restWhen the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI is larger than or equal to the threshold, adjusting the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI from a first value to a second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; the threshold is equal to the number N x (second value-first value) of data channels actually scheduled by the DCI; rule 2, at N_restIf the number of the indicating bits of the RV indicating information of the data channel actually scheduled by the DCI is larger than 0, selecting floor (N) from a preset index position_rest(second value-first value)) item RV indicating information, adjusting the indicating bit number of the selected RV indicating information from the first value to a second value until the indicating bit numbers of the RV indicating information of all data channels actually scheduled by the DCI are all adjusted to the second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; wherein the second value is greater than the first value, floor (A) represents rounding down A.

Optionally, the indication information includes modulation and coding scheme MCS information of a scheduling data channel, where the MCS information includes an MCS level or a modulation order corresponding to the MCS level; the rule two specifically includes: number of idle bits N in the DCI_restAnd when the number of the indicated bits of the MCS information is greater than or equal to the number of the indicated bits of the MCS information, using idle bits in the DCI to newly add at least one piece of the MCS information.

Optionally, the indication information includes CBGTI indication information of the code block group transmission information;

the rule one comprises at least one of the following rules: rule 3, number of idle bits N in the DCI_restWhen the number of the indication bits corresponding to the actually used CBGTI indication information in the DCI is greater than or equal to M x (Applied _ CBG _ Num-Configured _ CBG _ Num), adjusting the indication bits corresponding to the actually used CBGTI indication information in the DCI from Configured _ CBG _ Num to Applied _ CBG _ Num; otherwise, maintaining the indicating bit number corresponding to the actually used CBGTI indicating information in the DCI as Configured _ CBG _ Num; m represents the number of actually used items of the CBGTI indication information, Applied _ CBG _ Num represents the maximum number of Code Block Groups (CBG) which actually take effect, Configured _ CBG _ Num represents the maximum number of CBG supported by a single Transport Block (TB), and Configured _ CBG _ Num can be specified by a protocol or Configured to a terminal by a network through high-layer signaling;

rule 4, in N_restFor greater than 0, forCircularly executing preset operation by using the indication bit number corresponding to the actually used CBGTI indication information in the DCI until the execution is stopped when the preset execution termination condition is met; the preset operation comprises the following steps: selecting part or all of actually used CBGTI indication information from a preset index position, and adjusting the indication bit number corresponding to the selected CBGTI indication information from a current value to a next allocable value; wherein the next matchable value is a configuration value adjacent to the current value, and the next matchable value is greater than the current value.

Optionally, the preset termination execution condition includes at least one of the following conditions:

no more idle bits remain in the DCI;

The network device of the embodiment of the present invention can implement all the implementation manners in the above scheduling information indication method applied to the network device, and can achieve the same effect, which is not described herein again.

Fig. 6 is a schematic module diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 6, an embodiment of the present invention further provides a terminal 600, including:

a first receiving module 601, configured to receive downlink control information DCI sent by a network device;

correspondingly, the rule one comprises at least one of the following rules: rule 1, number of idle bits N in the DCI_restWhen the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI is larger than or equal to the threshold, adjusting the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI from a first value to a second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; the threshold is equal to the number of the DCI actual schedulingThe number of data channels nx (second value-first value); rule 2, at N_restIf the number of the indicating bits of the RV indicating information of the data channel actually scheduled by the DCI is larger than 0, selecting floor (N) from a preset index position_rest(second value-first value)) item RV indicating information, adjusting the indicating bit number of the selected RV indicating information from the first value to a second value until the indicating bit numbers of the RV indicating information of all data channels actually scheduled by the DCI are all adjusted to the second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; wherein the second value is greater than the first value, floor (A) represents rounding down A.

no more idle bits remain in the DCI;

The terminal provided by the embodiment of the invention receives downlink control information DCI sent by network equipment; and the DCI comprises indication information expanded according to a preset rule. The terminal receives the indication information expanded according to the preset rule and is subsequently used for identification and analysis, so that the number of idle bits in DCI can be reduced, the utilization rate of signaling bits can be improved, and the idle bits are used for indicating some extra scheduling information and/or supplementary scheduling information transmitted in a best effort manner, so that scheduling indication is optimized, the scheduling flexibility is increased, and the transmission performance is improved.

An embodiment of the present invention further provides a terminal, including: the scheduling information indication method applied to the terminal comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein when the computer program is executed by the processor, each process in the scheduling information indication method applied to the terminal is realized, the same technical effect can be achieved, and in order to avoid repetition, the details are not repeated.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process in the foregoing scheduling information indication method embodiment applied to a terminal, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

In order to better achieve the above object, as shown in fig. 7, an embodiment of the present invention further provides a terminal, which includes a memory 720, a processor 700, a transceiver 710, a user interface 730, a bus interface, and a computer program stored on the memory 720 and operable on the processor 700, wherein the processor 700 is configured to read the program in the memory 720 and execute the following processes:

receiving, by the transceiver 710, downlink control information DCI transmitted by a network device;

Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The user interface 730 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.

the rule one comprises at least one of the following rules: rule 1, number of idle bits N in the DCI_restWhen the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI is larger than or equal to the threshold, adjusting the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI from a first value to a second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; the threshold is equal to the number N x (second value-first value) of data channels actually scheduled by the DCI; rule 2, at N_restIn case of greater than 0, actually adjusting for the DCISelecting floor (N) from preset index position according to indication bit number of RV indication information of data channel of degree_rest(second value-first value)) item RV indicating information, adjusting the indicating bit number of the selected RV indicating information from the first value to a second value until the indicating bit numbers of the RV indicating information of all data channels actually scheduled by the DCI are all adjusted to the second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value; wherein the second value is greater than the first value, floor (A) represents rounding down A.

rule 4, in N_restIf the indication ratio is greater than 0, the indication ratio corresponding to the actually used CBGTI indication information in the DCIThe special number circularly executes preset operation until meeting the preset execution termination condition and stopping executing; the preset operation comprises the following steps: selecting part or all of actually used CBGTI indication information from a preset index position, and adjusting the indication bit number corresponding to the selected CBGTI indication information from a current value to a next allocable value; wherein the next matchable value is a configuration value adjacent to the current value, and the next matchable value is greater than the current value.

no more idle bits remain in the DCI;

Fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811. Those skilled in the art will appreciate that the terminal configuration shown in fig. 8 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 810 is configured to receive, by using the radio frequency unit 801, downlink control information DCI sent by a network device; and the DCI comprises indication information expanded according to a preset rule.

According to the technical scheme of the embodiment of the invention, downlink control information DCI sent by network equipment is received; and the DCI comprises indication information expanded according to a preset rule. The terminal receives the indication information expanded according to the preset rule and is subsequently used for identification and analysis, so that the number of idle bits in DCI can be reduced, the utilization rate of signaling bits can be improved, and the idle bits are used for indicating some extra scheduling information and/or supplementary scheduling information transmitted in a best effort manner, so that scheduling indication is optimized, the scheduling flexibility is increased, and the transmission performance is improved.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 801 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a network device and then processes the received downlink data to the processor 810; in addition, the uplink data is sent to the network device. In general, radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 801 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 802, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 803 may convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into an audio signal and output as sound. Also, the audio output unit 803 may also provide audio output related to a specific function performed by the terminal 800 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.

The input unit 804 is used for receiving an audio or video signal. The input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics processor 8041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 806. The image frames processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or transmitted via the radio frequency unit 801 or the network module 802. The microphone 8042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication network device via the radio frequency unit 801 in case of the phone call mode.

The terminal 800 also includes at least one sensor 805, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 8061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 8061 and/or the backlight when the terminal 800 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 805 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 806 is used to display information input by the user or information provided to the user. The Display unit 806 may include a Display panel 8061, and the Display panel 8061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 807 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 8071 (e.g., operations by a user on or near the touch panel 8071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 8071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 810, receives a command from the processor 810, and executes the command. In addition, the touch panel 8071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 8071, the user input unit 807 can include other input devices 8072. In particular, other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 8071 can be overlaid on the display panel 8061, and when the touch panel 8071 detects a touch operation on or near the touch panel 8071, the touch operation is transmitted to the processor 810 to determine the type of the touch event, and then the processor 810 provides a corresponding visual output on the display panel 8061 according to the type of the touch event. Although in fig. 8, the touch panel 8071 and the display panel 8061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 8071 and the display panel 8061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 808 is an interface for connecting an external device to the terminal 800. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 808 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 800 or may be used to transmit data between the terminal 800 and external devices.

The memory 809 may be used to store software programs as well as various data. The memory 809 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 809 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 810 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 809 and calling data stored in the memory 809, thereby integrally monitoring the terminal. Processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The terminal 800 may also include a power supply 811 (e.g., a battery) for powering the various components, and preferably, the power supply 811 may be logically coupled to the processor 810 via a power management system to provide management of charging, discharging, and power consumption via the power management system.

In addition, the terminal 800 includes some functional modules that are not shown, and are not described in detail herein.

The terminal of the embodiment of the present invention can implement all the implementation manners in the above scheduling information indication method applied to the terminal, and can achieve the same effect, which is not described herein again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A scheduling information indication method is applied to network equipment, and is characterized by comprising the following steps:

sending downlink control information DCI to a terminal;

2. The method according to claim 1, wherein the preset rule comprises at least one of the following rules:

a first rule, according to idle bits in the DCI, extending an indication field of part or all of the indication information in the DCI;

and a second rule, according to the idle bits in the DCI, adding at least one piece of the indication information in the DCI.

3. The method according to claim 2, wherein the indication information includes redundancy version, RV, indication information corresponding to a data channel actually scheduled by the DCI;

the rule one comprises at least one of the following rules:

rule 1, number of idle bits N in the DCI_restWhen the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI is larger than or equal to the threshold, adjusting the number of the indicating bits of the RV indicating information of each data channel actually scheduled by the DCI from a first value to a second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value;

the threshold is equal to the number N x (second value-first value) of data channels actually scheduled by the DCI;

rule 2, at N_restIf the number of the indicating bits of the RV indicating information of the data channel actually scheduled by the DCI is larger than 0, selecting floor (N) from a preset index position_rest(second value-first value)) item RV indicating information, adjusting the indicating bit number of the selected RV indicating information from the first value to a second value until the indicating bit numbers of the RV indicating information of all data channels actually scheduled by the DCI are all adjusted to the second value; otherwise, maintaining the indication bit number of the RV indication information of each data channel actually scheduled by the DCI as a first value;

wherein the second value is greater than the first value, floor (A) represents rounding down A.

4. The method of claim 2, wherein the indication information includes Modulation and Coding Scheme (MCS) information of the scheduled data channel, and the MCS information includes a MCS level or a modulation order corresponding to the MCS level;

the rule two specifically includes:

number of idle bits N in the DCI_restAnd when the number of the indicated bits of the MCS information is greater than or equal to the number of the indicated bits of the MCS information, using idle bits in the DCI to newly add at least one piece of the MCS information.

5. The method of claim 4, wherein the new MCS information is applied to all retransmission data channels scheduled by the DCI.

6. The method according to claim 2, wherein the indication information includes CBGTI indication information;

the rule one comprises at least one of the following rules:

rule 3, number of idle bits N in the DCI_restWhen the number of the indication bits corresponding to the actually used CBGTI indication information in the DCI is greater than or equal to M x (Applied _ CBG _ Num-Configured _ CBG _ Num), adjusting the indication bits corresponding to the actually used CBGTI indication information in the DCI from Configured _ CBG _ Num to Applied _ CBG _ Num; otherwise, maintaining the indicating bit number corresponding to the actually used CBGTI indicating information in the DCI as Configured _ CBG _ Num;

m represents the number of actually used items of CBGTI indication information, Applied _ CBG _ Num represents the maximum number of code block groups CBG actually validated, Configured _ CBG _ Num represents the maximum number of CBGs supported by a single transport block TB;

rule 4, in N_restIf the number of the indicating bits corresponding to the actually used CBGTI indicating information in the DCI is larger than 0, circularly executing preset operation until a preset execution termination condition is met, and stopping execution;

the preset operation comprises the following steps: selecting part or all of actually used CBGTI indication information from a preset index position, and adjusting the indication bit number corresponding to the selected CBGTI indication information from a current value to a next allocable value;

wherein the next matchable value is a configuration value adjacent to the current value, and the next matchable value is greater than the current value.

7. The method according to claim 6, wherein the predetermined termination execution condition comprises at least one of the following conditions:

no more idle bits remain in the DCI;

8. A scheduling information indication method is applied to a terminal, and is characterized by comprising the following steps:

receiving downlink control information DCI sent by network equipment;

9. The method according to claim 8, wherein the preset rule comprises at least one of the following rules:

10. The method according to claim 9, wherein the indication information includes redundancy version, RV, indication information corresponding to a data channel actually scheduled by the DCI;

the rule one comprises at least one of the following rules:

11. The method of claim 9, wherein the indication information includes Modulation and Coding Scheme (MCS) information of the scheduled data channel, and the MCS information includes a MCS level or a modulation order corresponding to the MCS level;

the rule two specifically includes:

12. The method of claim 11, wherein the new MCS information is applied to all retransmission data channels scheduled by the DCI.

13. The method according to claim 9, wherein the indication information includes CBGTI indication information;

the rule one comprises at least one of the following rules:

14. The method according to claim 13, wherein the predetermined termination execution condition comprises at least one of the following conditions:

no more idle bits remain in the DCI;

15. A network device, comprising:

16. The network device of claim 15, wherein the preset rules comprise at least one of the following rules:

17. The network device of claim 16, wherein the indication information comprises redundancy version, RV, indication information corresponding to a data channel actually scheduled by the DCI;

the rule one comprises at least one of the following rules:

18. The network device of claim 16, wherein the indication information comprises Modulation and Coding Scheme (MCS) information of the scheduled data channel, and wherein the MCS information comprises a MCS level or a modulation order corresponding to the MCS level;

the rule two specifically includes:

19. The network device of claim 18, wherein the MCS information that is newly added applies to all retransmission data channels scheduled by the DCI.

20. The network device of claim 16, wherein the indication information comprises a code block group transmission information CBGTI indication information;

the rule one comprises at least one of the following rules:

21. The network device of claim 20, wherein the preset termination execution condition comprises at least one of the following conditions:

no more idle bits remain in the DCI;

22. A terminal, comprising:

a first receiving module, configured to receive DCI sent by a network device;

23. The terminal according to claim 22, wherein the preset rule comprises at least one of the following rules:

24. The terminal of claim 23, wherein the indication information comprises redundancy version, RV, indication information corresponding to a data channel actually scheduled by the DCI;

the rule one comprises at least one of the following rules:

25. The terminal of claim 23, wherein the indication information comprises Modulation and Coding Scheme (MCS) information of the scheduled data channel, and wherein the MCS information comprises a MCS level or a modulation order corresponding to the MCS level;

the rule two specifically includes:

number of idle bits N in the DCI_restCase of indicating bit number greater than or equal to the MCS informationAnd under the condition, at least one piece of MCS information is newly added by using idle bits in the DCI.

26. The terminal of claim 25, wherein the MCS information that is newly added is applied to all retransmission data channels scheduled by the DCI.

27. The terminal of claim 23, wherein the indication information comprises code block group transmission information CBGTI indication information;

the rule one comprises at least one of the following rules:

28. The terminal according to claim 27, wherein the predetermined termination execution condition comprises at least one of the following conditions:

no more idle bits remain in the DCI;

29. A network device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of scheduling information indication according to any one of claims 1 to 7.

30. A terminal comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of scheduling information indication according to any of claims 8 to 14.

31. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the scheduling information indication method according to any one of claims 1 to 14.