CN113949493A

CN113949493A - Information transmission method, equipment, device and medium

Info

Publication number: CN113949493A
Application number: CN202010692562.2A
Authority: CN
Inventors: 王磊; 邢艳萍; 高雪娟; 周雷
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2022-01-18
Anticipated expiration: 2040-07-17
Also published as: CN113949493B

Abstract

The invention discloses an information transmission method, equipment, a device and a medium, comprising the following steps: determining an absolute time domain pattern of information sent and received by the downlink control channel according to the related technical characteristics of the downlink control channel; and transmitting and/or receiving repeatedly transmitted information in a downlink control channel according to the absolute time domain pattern. By adopting the invention, a repeated transmission scheme of the downlink control channel is provided; and the base station side and the terminal side can also ensure that the base station side and the terminal side have consistent understanding on the transmission and the reception of the data, and the reliability of data transmission is improved.

Description

Information transmission method, equipment, device and medium

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to an information transmission method, device, apparatus, and medium.

Background

The defects of the prior art are as follows: in the prior art, repeated transmission of a downlink control channel is not involved, and therefore, there is no related technical scheme for repeated transmission of the downlink control channel.

Disclosure of Invention

The invention provides an information transmission method, equipment, a device and a medium, which are used for solving the problem of repeated transmission of a downlink control channel.

The invention provides the following technical scheme:

an information transmission method, comprising:

determining an absolute time domain pattern of the downlink control channel for sending and receiving information according to an implicit or explicit indication mode;

and sending the repeatedly sent information in the downlink control channel according to the absolute time domain pattern.

In the implementation, the determining of the absolute time domain pattern of the downlink control channel transmitting and receiving information is to determine one or more absolute time domain patterns of the transmitting and receiving information in N system frames according to the absolute time number, where N is a positive integer greater than or equal to 1.

In an implementation, the absolute time domain pattern of the sending and receiving information is a time domain range of the channel for repeated transmission.

In implementation, after the repeatedly transmitted information is transmitted in the downlink control channel according to the absolute time domain pattern, the method further includes:

repeatedly transmitting information on a corresponding channel at each receiver opportunity within a time domain defined by the absolute time domain pattern.

In an implementation, the absolute time domain pattern is indicated by a predefined manner; and/or the presence of a gas in the gas,

the absolute time domain pattern is indicated by one or a combination of the following display signaling: RRC signaling, SIB1, MIB.

In an implementation, before acquiring an absolute time domain pattern through the RRC signaling or SIB1, the method further includes:

determining an absolute time domain pattern adopted by downlink control channel detection and reception in a protocol predefined mode; or,

and acquiring an absolute time domain pattern adopted by downlink control detection and reception through an indication signaling carried in the MIB.

In an implementation, when the network configures or defines a plurality of absolute time domain patterns, the method further includes:

the network side dynamically adjusts the absolute time domain pattern adopted by the downlink control channel transmission through the L1 signaling.

In an implementation, each time domain transmission unit within the absolute time domain pattern is determined in one or a combination of the following ways:

in N system frames, M slots are included altogether, all slots are numbered, and are marked as # N (#0, #1, …), then all slots satisfying the formula Floor (N/K) ═ Q belong to the Q-th transmission time domain unit in the absolute time domain pattern, where K is the number of basic time units constituting one time domain transmission unit; or,

when one transmission time domain unit in the absolute time domain pattern received by the downlink control channel is K continuous effective MOs, in N system frames, M effective MOs are contained in total, all the MOs are numbered as # N (#0, #1, …), and all MOs satisfying the formula floor (N/K) ═ Q all belong to the Q-th transmission time domain unit in the absolute time domain pattern; or,

when one transmission time domain unit in the absolute time domain pattern received by the downlink control channel is K consecutive effective MOs, in N system frames, M effective MOs are included in total, and all MOs are numbered as # N (#0, #1, …), so that all MOs satisfying the formula mod (N, K) ═ Q all belong to the Q-th transmission time domain unit in the absolute time domain pattern.

In an implementation, when each time domain transmission unit in the absolute time domain pattern is determined, the basic time unit is a timeslot or a listening opportunity of a downlink control channel.

In an implementation, when slot is used to determine each time domain transmission unit in the absolute time domain pattern, the n is a number of consecutive basic time units or a number of discrete time units.

In implementation, when the slot is used to determine each time domain transmission unit in the absolute time domain pattern, all slots are numbered, that is, all uplink available slots or downlink available slots in N system frames are numbered.

In an implementation, when slots are used to determine each time-domain transmission unit within the absolute time-domain pattern, the transmission time-domain units of the absolute time-domain pattern contain K slots that are not contiguous.

In an implementation, when determining each time domain transmission unit in the absolute time domain pattern using an MO, the MO is a listening opportunity corresponding to a specific search space or DCI format.

In an implementation, when slot is used to determine each time domain transmission unit in the absolute time domain pattern, the method further includes one or a combination of the following processes:

in the transmission time domain unit, the base station sends the downlink control channels which need to be combined and received on the same PDCCH candidate in the same search space; or,

in the transmission time unit, the base station repeatedly sends the same DCI format; or,

and in the transmission time unit, the base station repeatedly transmits the downlink control channel in the CORESET with the same ID.

An information transmission method, comprising:

and receiving the repeatedly transmitted information in the downlink control channel according to the absolute time domain pattern.

In implementation, after receiving the repeatedly transmitted information in the downlink control channel according to the absolute time domain pattern, the method further includes:

repeatedly transmitting information on a corresponding channel at each receiver opportunity within a time domain defined by the absolute time domain pattern; and/or the presence of a gas in the gas,

and receiving the information of the corresponding channel on each receiver opportunity and carrying out merging operation in the time domain range defined by the absolute time domain pattern.

in the transmission time domain unit, the terminal combines the downlink control channels transmitted in the same search space, or,

in the transmission time unit, the terminal performs combined reception on the same DCI format, or,

and in the transmission time unit, the terminal performs combined receiving on the CORESET with the same ID.

A base station, comprising:

a processor for reading the program in the memory, performing the following processes:

sending repeatedly sent information in a downlink control channel according to the absolute time domain pattern;

a transceiver for receiving and transmitting data under the control of the processor.

An information transmission apparatus comprising:

a base station determining module, configured to determine, according to an implicit or explicit indication manner, an absolute time domain pattern of information transmitted and received by a downlink control channel;

and the base station sending module is used for sending the repeatedly sent information on the downlink control channel according to the absolute time domain pattern.

A terminal, comprising:

receiving repeatedly transmitted information in a downlink control channel according to the absolute time domain pattern;

An information transmission apparatus comprising:

the terminal determining module is used for determining an absolute time domain pattern of the information sent and received by the downlink control channel according to the implicit or explicit indication mode;

and the terminal receiving module is used for receiving the repeatedly sent information in the downlink control channel according to the absolute time domain pattern.

A computer-readable storage medium storing a computer program for executing the above-described information transmission method.

The invention has the following beneficial effects:

in the technical scheme provided by the embodiment of the invention, because the information is transmitted according to the absolute time domain pattern when the channel repeatedly sends the information, a repeated transmission scheme of the downlink control channel is provided;

furthermore, the base station side and the terminal side can be ensured to have consistent understanding on the transmission and the reception of the data, and the reliability of data transmission is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a configuration diagram of a PDSCH slot aggregation level of 4 in the embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating an implementation flow of an information transmission method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an absolute time domain pattern according to embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of an absolute time domain pattern according to embodiment 2 of the present invention;

FIG. 5 is a schematic diagram of an absolute time domain pattern according to embodiment 3 of the present invention;

FIG. 6 is a diagram illustrating an absolute time domain pattern according to embodiment 5 of the present invention;

FIG. 7 is a diagram illustrating a base station structure according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a terminal structure in an embodiment of the present invention.

Detailed Description

The inventor notices in the process of invention that:

in 5G NR (5G New RAT; 5)^thGeneration New RAT; RAT (RAT): radio Access Technology) system, a downlink data channel and an uplink data channel can be repeatedly transmitted, and the specific method is as follows: the network side configures the repeated transmission factor K through the high-level parameters, and the terminal can determine the exact time starting point and the time domain range of repeated transmission through the transmission time of the scheduling information and the related data channel after receiving the related scheduling information, thereby smoothly finishing the transmission and the reception of data.

Similarly, the repeated transmission of the Uplink Control CHannel PUCCH (Physical Uplink Control CHannel) configures the number of times of repeated transmission through high-level signaling, and then determines the start position and the continuous time range of transmission according to PDSCH HARQ-ACK timing (PDSCH HARQ-ACK feedback timing relationship; PDSCH: Physical downlink shared CHannel; HARQ-ACK: Hybrid automatic repeat request acknowledgement) indicated or configured by the base station. From the current transmission mechanism, the repeated transmission of the data channel or the uplink control channel PUCCH can determine the start point and the duration range of the transmission through the indication information carried by the downlink control channel and the higher layer parameters. Fig. 1 is a schematic configuration diagram of a PDSCH slot aggregation level of 4, and a specific example of the PDSCH slot aggregation level of 4 is shown in the figure.

The current channel repeated sending and receiving method must depend on the downlink control channel indication determination, that is, the starting position of the corresponding channel repeated transmission is determined through the indication information carried by the downlink control channel, and then how to send or combine and receive the relevant channel is determined according to the starting time domain position and the time domain duration.

In order to increase the reliability and coverage of the control channel, repeated transmissions for the downlink control channel may be considered in future communication systems. However, the downlink control channel is different from the data channel or the uplink control channel, and when the terminal detects and receives the downlink control channel, there is no other prior information except the high-level signaling parameter. That is, when detecting and receiving the downlink control channel, the terminal cannot determine the time domain range of the downlink control channel that needs to be received in combination, which causes a deviation from the understanding of the network side, resulting in a failure in receiving the downlink control channel.

In other words, for the downlink control channel, the current working mechanism cannot inform the terminal of the specific time domain position where the terminal starts to combine and receive, so that the understanding of the behavior of the network side and the terminal side for the transmission and reception of the downlink control channel is inconsistent.

Based on this, for repeated transmission of a downlink control channel, in the embodiment of the present invention, a scheme related to channel repeated transmission of an absolute time domain pattern is provided, so as to ensure that a base station side and a terminal side have consistent understanding on transmission and reception of data, and improve reliability of data transmission.

The following describes embodiments of the present invention with reference to the drawings.

In the description process, since the behaviors of the network side and the terminal are in mutual correspondence, the description will be unified, then the description will be made from the implementation of the terminal and the base station side respectively, and finally, an example of the implementation of the two in cooperation will be given to better understand the implementation of the scheme provided in the embodiment of the present invention. Such an explanation does not mean that the two must be implemented in cooperation or separately, and actually, when the terminal and the base station are implemented separately, the problems on the terminal side and the base station side are solved separately, and when the two are used in combination, a better technical effect is obtained.

Fig. 2 is a schematic flow chart of an implementation of the information transmission method, as shown in the figure, the implementation may include:

step 201, determining an absolute time domain pattern of information transmitted and received by a downlink control channel according to the related technical characteristics of the downlink control channel;

step 202, sending and/or receiving repeatedly sent information in a downlink control channel according to the absolute time domain pattern.

Wherein, the 'absolute' of the absolute time domain pattern means that the definition is carried out according to the wireless frame determined by the system time, namely, the time domain pattern is defined in the range of the system wireless frame, and the current system wireless frame is 1024 frames; "time domain" also known as time resource; the "pattern" refers to the representation of the time domain resource in the form of pattern. Obviously, the present application does not exclude other forms or manners, or carriers, to carry the information of the downlink control channel transmission/reception information.

Specifically, one or more absolute time domain patterns of Downlink Control channel transmission and reception may be defined in a predefined or explicit signaling indication manner according to related technical features of the Downlink Control channel (e.g., search space, DCI (Downlink Control information) format, monitoring opportunity, CORESET (Control Resource Set), and the like), and the network side and the terminal side complete the transmission and reception of the Downlink Control channel according to the defined absolute time domain patterns. The absolute time domain pattern transmitted and received by the downlink control channel indicates the time domain range in which the channel is repeatedly transmitted and received.

In implementation, after the sending and/or receiving the repeatedly sent information in the downlink control channel according to the absolute time domain pattern, the method further includes:

the terminal receives the adopted absolute time domain pattern from the network side through the downlink control channel dynamically adjusted by the L1 signaling; and/or the presence of a gas in the gas,

when one transmission time domain unit in the absolute time domain pattern received by the downlink control channel is K consecutive effective MOs, in N system frames, M effective MOs (Monitoring time) are included altogether, all the MOs are numbered as # N (#0, #1, …), and all MOs satisfying the formula floor (N/K) ═ Q all belong to the Q-th transmission time domain unit in the absolute time domain pattern; or,

In implementation, when a slot is used to determine each time domain transmission unit in the absolute time domain pattern, the basic time unit is a timeslot or a listening opportunity of a downlink control channel.

in the transmission time unit, the terminal performs combined receiving on the CORESET with the same ID;

The following description will be made from both sides.

A terminal side:

and the terminal side determines the absolute time domain pattern transmitted and received by the downlink control channel according to a protocol predefined mode or an explicit signaling configuration mode.

1. And the terminal determines one or more absolute time domain patterns transmitted and received in N system frames according to the absolute time number, wherein N is a positive integer greater than or equal to 1.

2. The absolute time domain pattern of the sending and receiving is the time domain range of the channel for repeated transmission.

And in the time domain range defined by the absolute time domain pattern, the transmitting end repeatedly transmits the corresponding channel on each transmitting opportunity, and the receiving end receives the corresponding channel on each receiving opportunity and performs merging operation.

3. The display signaling includes, but is not limited to, RRC signaling (RRC: Radio Resource Control), SIB (System Information Block)1, MIB (Master Information Block).

4. Each time-domain transmission unit within the time-domain pattern is determined by:

1) in N system frames, M slots are included altogether, all slots are numbered, and are denoted as # N (#0, #1, …), then all slots satisfying the formula Floor (N/K) ═ Q belong to the Q-th transmission time domain unit in the absolute time domain pattern, where K is the number of basic time units constituting one time domain transmission unit.

(1) The basic time unit is a time slot or a monitoring opportunity of a downlink control channel.

(2) And n is the number of continuous basic time units or the number of discrete time units.

(3) Furthermore, all uplinks in the N system frames can be availableThe time slots or downlink available time slots being numbered, e.g. comprising M in total_dlA downlink available time slot and M_ulA plurality of uplink available time slots, respectively marked as # n_dl(#0, #1, …) and # n_ul(#0, #1, …), the formula Floor (n) is satisfied_dl/K)＝Q_dlOr Floor (n)_ul/K)＝Q_ulAll the downlink available time slots or the uplink available time slots belong to the Q < th > time slot in the absolute time domain same_dlOr Q_ulAnd transmitting the time domain unit.

(4) Further, the time domain unit of the absolute time domain pattern includes K discontinuous slots, for example, all slots are divided into Z groups in N system frames, all slots satisfying mod (N, Z) ═ 0 belong to group 0, all slots satisfying mod (N, K) ═ 1 belong to group 1, and so on. Within each group, all slots that satisfy the formula Floor (n/K) ═ Q belong to the qth transmission time domain unit in the absolute time domain pattern.

(5) For the downlink control channel, the determining method of the absolute time domain pattern thereof may further include, on the basis of the above method:

(1) the above manner is combined with the search space configuration, that is, in the transmission time domain unit, the terminal only combines the downlink control channels transmitted in the same search space, or,

(2) in combination with specific DCI format, the terminal only performs combined reception on the same DCI format in the transmission time unit, or,

(3) the above manner is combined with a specific CORESET, that is, the terminal only performs combined reception on CORESET with the same ID in the transmission time unit.

2) Alternatively, each time-domain transmission unit within the time-domain pattern is determined by:

if a transmission time domain unit in the absolute time domain pattern received by the downlink control channel is K consecutive effective MOs (monitoring time), there are:

(1) in N system frames, M valid MOs (monitoring occupancy) are included in total, all MOs are numbered as # N (#0, #1, …), and all MOs satisfying the formula floor (N/K) ═ Q belong to the Q-th time domain transmission unit in the absolute time domain pattern;

alternatively, in N system frames, a total of M valid MOs are included, all MOs are numbered as # N (#0, #1, …), and all MOs satisfying the formula mod (N, K) ═ Q belong to the qth time domain transmission unit in the absolute time domain pattern.

(2) The MO is a listening opportunity corresponding to a specific search space or DCI format.

5. When the terminal determines, according to the explicit signaling on the network side, one or more absolute time patterns actually effective when detecting and receiving the downlink control channel, the following may be performed:

the explicit signaling is RRC signaling, or,

the display signaling is broadcast signaling such as SIB1 or MIB.

Further, before the RRC signaling or SIB1 is acquired, an absolute time domain pattern used for downlink control channel detection and reception may be determined in a protocol predefined manner, or the absolute time domain pattern used for downlink control channel detection and reception may be acquired through an indication signaling carried in the MIB.

Further, when the network side configures or defines a plurality of absolute time domain patterns, the network side dynamically adjusts the absolute time domain patterns used by the downlink control channel for transmission and reception through L1 signaling.

A base station side:

and the base station side determines the absolute time domain pattern transmitted and received by the downlink control channel according to a protocol predefined mode or an explicit signaling configuration mode.

1. And the base station determines one or more transmitted and received absolute time domain patterns in N system frames according to the absolute time number, wherein N is a positive integer greater than or equal to 1.

2. And the sent and received absolute time domain pattern is a time domain range for repeated transmission of the downlink control channel.

3. The explicit signaling includes, but is not limited to RRC signaling, SIB1, MIB.

1) in N system frames, M slots are included altogether, all slots are numbered, and are denoted as # N (#0, #1, …), then all slots satisfying the formula floor (N, K) ═ Q all belong to the qth transmission time domain unit in the absolute time domain pattern, where K is the number of basic time units constituting one time domain transmission unit.

(2) Further, all uplink available time slots or downlink available time slots in the N system frames may be numbered, for example, to include M in total_dlA downlink available time slot and M_ulA plurality of uplink available time slots, respectively marked as # n_dl(#0, #1, …) and # n_ul(#0, #1, …), the formula Floor (n) is satisfied_dl/K)＝Q_dlOr Floor (n)_ul/K)＝Q_ulAll the downlink available time slots or the uplink available time slots belong to the Q < th > time slot in the absolute time domain same_dlOr Q_ulAnd transmitting the time domain unit.

(3) Further, the transmission time domain units of the absolute time domain pattern include discontinuous K slots, for example, all slots satisfying mod (N, K) ═ 0 in N system frames belong to the 0 th transmission time domain unit, all slots satisfying mod (N, K) ═ 1 belong to the 1 st transmission time domain unit, and so on.

(4) For the downlink control channel, the determining method of the absolute time domain pattern thereof may further include, on the basis of the above method:

the above method is combined with the search space configuration, that is, in the transmission time domain unit, the base station only sends the downlink control channel to be combined and received on the same PDCCH candidate in the same search space, or,

in combination with specific DCI format, the base station only repeatedly transmits the same DCI format in the transmission time unit, or,

the above should be combined with a specific CORESET, i.e. the base station only repeatedly transmits the downlink control channel in the CORESET with the same ID during the transmission time unit.

5. Alternatively, each time domain transmission unit within the time domain pattern is determined by:

for the downlink control channel, if one transmission time domain unit in the absolute time domain pattern sent by the downlink control channel is K consecutive valid mos (transmission interference), there are:

1) in N system frames, M effective MOs are included in total, all MOs are numbered as # N (#0, #1, …), and all MOs satisfying the formula floor (N, K) ═ Q belong to the qth time domain unit in the absolute time domain pattern;

2) The MO is a listening opportunity corresponding to a specific search space or DCI format.

6. The base station indicates one or more absolute time patterns actually effective when the terminal detects and receives the downlink control channel through the explicit signaling, and the absolute time patterns comprise:

the explicit signaling is RRC signaling, or,

the display signaling is broadcast signaling such as SIB1 or MIB.

Further, before the RRC signaling or SIB1 is acquired, an absolute time domain pattern used for downlink control channel detection and reception is determined in a protocol predefined manner, or the absolute time domain pattern used for downlink control channel detection and reception is acquired through an indication signaling carried in the MIB.

Further, the base station dynamically adjusts the absolute time domain pattern used by the downlink control channel for transmission and reception through L1 signaling.

The following is an example.

Example 1:

it is assumed that an absolute time domain pattern defining channel transmission is specified in N system frames, and in the present embodiment, N is assumed to be 4. Assuming a system subcarrier spacing of 15kHz, 40 timeslots are included in every 4 system frames and numbered 0-39. The time domain range where the channel repeated transmission is located is determined by taking slots as granularity, and each transmission is repeated in K slots, wherein K is a positive integer greater than or equal to 1. In the present embodiment, it is assumed that an absolute time domain pattern of K ═ {1, 2, 4, 8} is defined in a manner predefined by the protocol. Fig. 3 is a schematic diagram of the absolute time domain pattern of embodiment 1, and then the absolute time domain patterns corresponding to K-1/2/3/4 are respectively as shown in fig. 3 below. Taking an absolute time domain pattern with K being 4 as an example, all the timeslots in each 4 system frames are divided into time domain transmission units with different numbers according to a formula of floor (n, K) being O, for example, if n being 0/1/2/3 and 4 are both 0 after modulo operation, it means that slot #0/1/2/3 constitutes a time domain transmission unit with number # 0. And so on.

In practical systems, other various absolute time domain patterns, as well as other numbers of absolute time domain patterns, may be defined in a predefined manner. In practical systems, various absolute time domain patterns and other numbers of absolute time domain patterns may also be configured and defined through various explicit signaling configurations such as RRC signaling, SIB1, MIB, etc.

The base station may explicitly signal one or more absolute time domain patterns actually employed in the terminal system. For example, the base station explicitly signals the absolute time domain pattern that is actually used for data transmission in the terminal system and is K-2 and K-4. Furthermore, when the base station and the terminal perform data transmission, only the absolute time domain patterns of K-2 and K-4 are considered, and the other two predefined absolute time domain patterns are ignored. The explicit signaling adopted by the base station may be indication information carried by RRC signaling, or indication information carried by SIB1, or indication information carried by MIB 1.

When the base station transmits data, the base station repeatedly transmits or combines and receives the data on available resources in one transmission time domain unit in the absolute time domain pattern, so that the reliability of data transmission is enhanced.

Example 2:

as described in embodiment 1, it is assumed that an absolute time domain pattern defining channel transmission is specified in N system frames, and in this embodiment, N is assumed to be 4. Assuming a system subcarrier spacing of 15kHz, 40 timeslots are included in every 4 system frames. Assuming that TDD UL DL configuration (TDD uplink and downlink configuration; TDD: Time Division multiplexing, Time Division Duplex) of each radio frame is dddddfuuu, 40 slots are divided into two groups according to slot group available for downlink transmission and slot group available for uplink transmission, and the number in DL transmission group is {0, 1, 2, …, 23}, and the number in UL transmission group is {0, 1, 2, …, 15 }. It should be noted that, in this embodiment, it is assumed that the F slot may be used for both uplink transmission and downlink transmission, and therefore, the F slot is counted in both groups. The time domain range where the channel repeated transmission is located is determined by taking slots as granularity, and each transmission is repeated in K slots, wherein K is a positive integer greater than or equal to 1. In the present embodiment, it is assumed that the absolute time domain pattern of K ═ {1, 2, 4, 8} is defined by means of protocol pre-definition or explicit signaling indication. Fig. 4 is a schematic diagram of the absolute time domain pattern of embodiment 2, and then the absolute time domain patterns corresponding to K-1/2 are respectively shown in fig. 4. According to the formula mod (n) as described in example 1_dl，K)＝O_dlOr mod (n)_ul，K)＝O_ulAnd dividing each downlink transmission time slot and each uplink transmission time slot into time domain transmission units with the serial numbers of O.

Example 3:

it is assumed that an absolute time domain pattern defining channel transmission is specified in N system frames, and in the present embodiment, N is assumed to be 4. Assuming a system subcarrier spacing of 15kHz, 40 timeslots are included in every 4 system frames and numbered 0-39. The time domain range where the channel repeated transmission is located is determined by taking slots as granularity, and each transmission is repeated in K slots, wherein K is a positive integer greater than or equal to 1. In the present embodiment, it is assumed that the absolute time domain pattern of K ═ {1, 2, 4, 8} is defined by means of protocol pre-definition or explicit signaling indication. Fig. 5 is a schematic diagram of the absolute time domain pattern of embodiment 3, and fig. 5 shows the absolute time domain patterns corresponding to K ═ 2, respectively.

In this embodiment, the time slots contained by the transmission time domain units in each absolute time domain pattern are not consecutive. The specific numbering scheme is that the transmission time domain units with even numbers only contain the time slots with even numbers, and the transmission time domain units with odd numbers only contain the time slots with odd numbers.

It should be noted that the present application is not limited to the space to enumerate all the numbering schemes, and does not exclude any other scheme that can implement discontinuous timeslots in a tti.

Example 4:

any of the schemes of embodiments 1 to 3 can be applied to any Physical Channel, for example, PDCCH (Physical downlink Control Channel), PUCCH (Physical Uplink Control Channel), PDSCH (Physical downlink shared Channel), PUSCH (Physical Uplink shared Channel), PBCH (Physical broadcast Channel), etc.

Example 5:

as described in any of embodiments 1-3, when applied to a downlink control channel, the ue may be bound to a MO (monitoring occasion) of a search space. In the context of the above embodiment, it is assumed in this embodiment that an absolute time domain pattern defining channel transmission is specified in N-2 system frames. Since the listening period of the search space can be freely configured through RRC signaling, the listening period may be greater than 1 slot or smaller than one slot. In this embodiment, examples are given in which the listening period of the SS is less than 1 slot (7 OFDM (Orthogonal frequency division multiplexing) symbols), equal to one slot, and greater than one slot (2 slots), respectively. Based on this, assume that K is 2.

Fig. 6 is a schematic diagram of an absolute time domain pattern of embodiment 5, as shown in fig. 6, when a listening period of an SS (synchronization signal) is 7 OFDM symbols, 40 MOs are total in 2 system frames, and 20 time domain transmission units can be divided considering that K is 2; when the monitoring period of the SS is 1 slot, 20 MOs frames are shared in 2 system frames, and 10 time domain transmission units can be divided considering that K is 2; when the listening period of the SS is 2 slots, there are 10 MOs in 2 system frames, and considering that K is 2, 5 time domain transmission units may be divided.

In each time domain transmission unit, the base station repeatedly sends the downlink control channel, and the terminal repeatedly receives the downlink control channel in the time domain transmission unit. It should be noted that, the base station uses what AL (Aggregation level) and PDCCH candidate are used for transmission at each transmission position in the time domain transmission unit, and the present application is not limited in any way; on the terminal side, how the terminal performs combined reception on the PDCCH is also not limited in this application.

Example 6:

as in any of the schemes in embodiments 1-3, when the method is applied to a downlink control channel, the repetition factor K is still a slot, and the number of times of PDCCH repeated transmission is K times the number of MOs included in each slot.

With any of the embodiments 1-3 as background, assuming that the number of SFNs (System frame numbers) is 4 and the listening period of the search space is 7 OSs, each slot contains two MOs. Assuming that K is 4, when transmitting the downlink control channel, the base station repeatedly transmits 4 × 2 to 8 times the PDCCH in each time domain transmission unit, and the terminal side combines and receives 8 PDCCHs in the time domain transmission unit. For another example, assuming that the listening period of the search space is 2 slots, every two slots contain 1 MO. Similarly, assuming that K is 4, when transmitting the downlink control channel, the base station repeatedly transmits 4 × 2 (1/2) to the PDCCH in each time-domain transmission unit, and the terminal side performs combining reception on 2 PDCCHs in the time-domain transmission unit.

Example 7:

as described in embodiments 1-6, when applied to a downlink control channel, the downlink control channel may be bound to a CORESET (control resource set). The detailed scheme can refer to example 5, and is not described in detail.

Example 8:

as described in embodiments 1-6, when applied to a downlink control channel, the bonding may be with DCI format. The detailed scheme can refer to example 5, and is not described in detail.

Example 9:

as described in embodiments 1 to 8, the network side may further dynamically switch the absolute time pattern used in the actual transmission process of the channel through the L1 signaling. For example, assuming that the K set notified by the base station through RRC signaling, SIB1, or MIB1 is { 1248 }, the network side may dynamically adjust the actually adopted value of K in the set through PDCCH, or MAC CE, so as to better adapt to the network condition.

Example 10:

when the terminal does not obtain the dynamic indication signaling of which specific value in the K set to use, the terminal and the base station obtain a default K value (default K) as follows:

scheme 1: indicating default K in MIB or SIB1 or RRC signaling;

scheme 2: default K is agreed in a manner predefined by the protocol.

Example 11:

before the terminal does not obtain the K set, the terminal and the base station may obtain a default K value (default K) as follows:

scheme 1: in MIB or SIB 1;

and 2, appointing default K in a protocol predefined mode.

Based on the same inventive concept, the embodiment of the present invention further provides a base station, a terminal, an information transmission apparatus, and a computer-readable storage medium, and because the principles of these devices for solving the problems are similar to the information transmission method, the implementation of these devices may refer to the implementation of the method, and repeated details are not repeated.

When the technical scheme provided by the embodiment of the invention is implemented, the implementation can be carried out as follows.

Fig. 7 is a schematic structural diagram of a base station, as shown in the figure, including:

the processor 700, which is used to read the program in the memory 720, executes the following processes:

a transceiver 710 for receiving and transmitting data under the control of the processor 700.

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 receiver that provide a means for communicating with various other apparatus over a transmission medium. 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.

An embodiment of the present invention further provides an information transmission apparatus, including:

The specific implementation may refer to the implementation of the information transmission method at the base station side.

For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.

Fig. 8 is a schematic structural diagram of a terminal, as shown, including:

the processor 800, which is used to read the program in the memory 820, executes the following processes:

a transceiver 810 for receiving and transmitting data under the control of the processor 800.

Where in fig. 8, 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 800 and memory represented by memory 820. 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 810 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. The user interface 830 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.

The specific implementation can be seen in the implementation of the information transmission method at the terminal side.

The embodiment of the invention also provides a computer readable storage medium, and the computer readable storage medium stores a computer program for executing the information transmission method.

The specific implementation may refer to the implementation of the information transmission method on the network side and/or the base station side.

In summary, in the technical solution provided in the embodiment of the present invention, the absolute time domain pattern for transmitting and receiving one or more channels is defined in a predefined or explicit signaling indication manner, and the network side and the terminal side complete transmission and reception of corresponding channels according to the defined absolute time domain pattern.

The absolute time domain pattern of the channel transmission and reception indicates the time domain range in which the channel is repeatedly transmitted and received.

The scheme provides a scheme for repeatedly transmitting the absolute time domain pattern by the channel, can ensure that the base station side and the terminal side have consistent understanding on the transmission and the reception of the data, and improves the reliability of data transmission.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An information transmission method, comprising:

2. The method of claim 1, wherein determining the absolute time domain pattern of the downlink control channel for transmitting and receiving information is based on an absolute time number, and determining one or more absolute time domain patterns of the downlink control channel for transmitting and receiving information in N system frames, where N is a positive integer greater than or equal to 1.

3. The method of claim 1, wherein the absolute time domain pattern of the transmitted and received information is a time domain range of a channel for repeated transmissions.

4. The method of claim 3, wherein after sending the repeatedly sent information on the downlink control channel according to the absolute time domain pattern, further comprising:

5. The method of claim 1, wherein the absolute time domain pattern is indicated by a predefined manner; and/or the presence of a gas in the gas,

the absolute time domain pattern is indicated by one or a combination of the following display signaling: radio resource control signaling RRC signaling, system information block SIB1, master information block MIB.

6. The method of claim 5, wherein prior to acquiring an absolute time domain pattern via the RRC signaling or SIB1, further comprising:

7. The method of claim 5, wherein when the network side configures or defines a plurality of absolute time domain patterns, further comprising:

8. A method according to any one of claims 1 to 7, wherein each time domain transmission unit within the absolute time domain pattern is determined in one or a combination of the following ways:

in N system frames, M slot slots are included altogether, all slots are numbered, and are marked as # N (#0, #1, …), then all slots which satisfy the formula Floor (N/K) ═ Q all belong to the Q-th transmission time domain unit in the absolute time domain pattern, where K is the number of basic time units constituting one time domain transmission unit; or,

when one transmission time domain unit in the absolute time domain pattern received by the downlink control channel is K continuous effective monitoring time MOs, in N system frames, M effective MOs are contained in total, all the MOs are numbered as # N (#0, #1, …), and all MOs satisfying the formula floor (N/K) ═ Q all belong to the Q-th transmission time domain unit in the absolute time domain pattern; or,

9. The method of claim 8, wherein the basic time unit is a time slot or a listening opportunity of a downlink control channel when determining each time domain transmission unit within the absolute time domain pattern.

10. The method of claim 8, wherein the n is a number of consecutive basic time units or a number of discrete time units when slots are used to determine each time domain transmission unit within the absolute time domain pattern.

11. The method of claim 8, wherein when slots are used to determine each time domain transmission unit in the absolute time domain pattern, all slots are numbered, either all uplink available slots or all downlink available slots in N system frames.

12. The method of claim 8, wherein in determining each time-domain transmission unit within the absolute time-domain pattern using slots, the transmission time-domain units of the absolute time-domain pattern contain K slots that are not contiguous.

13. The method of claim 8, wherein a MO is a listening opportunity for a particular search space or DCI format when determining each time-domain transmission unit within the absolute time-domain pattern using the MO.

14. The method of claim 8, wherein in determining each time-domain transmission unit within the absolute time-domain pattern using slots, further comprising one or a combination of:

in the transmission time domain unit, the base station sends the downlink control channels to be combined and received on the same physical downlink control channel candidate PDCCH candidate in the same search space; or,

in the transmission time unit, the base station repeatedly sends the same downlink control information format DCI format; or,

and in the transmission time unit, the base station repeatedly sends the downlink control channel in a control resource set CORESET with the same identification ID.

15. An information transmission method, comprising:

16. The method of claim 15, wherein determining the absolute time domain pattern of the downlink control channel for transmitting and receiving information is based on an absolute time number, and determining one or more absolute time domain patterns of the downlink control channel for transmitting and receiving information in N system frames, where N is a positive integer greater than or equal to 1.

17. The method of claim 15, wherein the absolute time domain pattern of the transmitted and received information is a time domain range of a channel for repeated transmissions.

18. The method of claim 17, wherein after receiving the repeatedly transmitted information on the downlink control channel according to the absolute time domain pattern, further comprising:

19. The method of claim 15, wherein the absolute time domain pattern is indicated by a predefined manner; and/or the presence of a gas in the gas,

20. The method of claim 19, prior to acquiring an absolute time domain pattern via the RRC signaling or SIB1, further comprising:

21. The method of claim 19, wherein when the network side configures or defines a plurality of absolute time domain patterns, further comprising:

22. A method according to any one of claims 15 to 21, wherein each time domain transmission unit within the absolute time domain pattern is determined in one or a combination of the following ways:

23. The method of claim 22, wherein the basic time unit is a time slot or a listening opportunity of a downlink control channel when determining each time domain transmission unit within the absolute time domain pattern.

24. The method of claim 22, wherein the n is a number of consecutive basic time units or a number of discrete time units when slots are used to determine each time domain transmission unit within the absolute time domain pattern.

25. The method of claim 22, wherein when slots are used to determine each time domain transmission unit in the absolute time domain pattern, all slots are numbered, either all uplink available slots or all downlink available slots in N system frames.

26. The method of claim 22, wherein in determining each time-domain transmission unit within the absolute time-domain pattern using slots, the transmission time-domain units of the absolute time-domain pattern contain K slots that are not contiguous.

27. The method of claim 22, wherein a MO is a listening opportunity for a particular search space or DCI format when determining each time-domain transmission unit within the absolute time-domain pattern using the MO.

28. The method of claim 22, wherein in determining each time-domain transmission unit within the absolute time-domain pattern using slots, further comprising one or a combination of:

29. A base station, comprising:

30. The base station of claim 29, wherein determining the absolute time domain pattern of the downlink control channel for transmitting and receiving information is based on an absolute time number, and determining one or more absolute time domain patterns of the downlink control channel for transmitting and receiving information in N system frames, where N is a positive integer greater than or equal to 1.

31. The base station of claim 29, wherein the absolute time domain pattern of the transmitted and received information is a time domain range of a channel for repeated transmissions.

32. The base station of claim 31, wherein after sending the repeatedly sent information on the downlink control channel according to the absolute time domain pattern, further comprising:

33. The base station of claim 29, wherein the absolute time domain pattern is indicated by a predefined manner; and/or the presence of a gas in the gas,

34. The base station of claim 33, further comprising, prior to acquiring an absolute time domain pattern via the RRC signaling or SIB 1:

35. The base station of claim 33, wherein when the network side configures or defines a plurality of absolute time domain patterns, further comprising:

36. A base station as claimed in any one of claims 29 to 35, wherein each time domain transmission unit in the absolute time domain pattern is determined by one or a combination of:

37. The base station of claim 36, wherein the basic time unit is a time slot or a listening opportunity of a downlink control channel when determining each time domain transmission unit in the absolute time domain pattern.

38. The base station of claim 36, wherein in determining each time domain transmission unit in the absolute time domain pattern using a slot, the n is a number of consecutive basic time units or a number of discrete time units.

39. The base station of claim 36, wherein when slots are used to determine each time domain transmission unit in the absolute time domain pattern, all slots are numbered, either all uplink available slots or all downlink available slots in N system frames.

40. The base station of claim 36, wherein in using slots to determine each time-domain transmission unit in the absolute time-domain pattern, the transmission time-domain units of the absolute time-domain pattern contain K slots that are not contiguous.

41. The base station of claim 36, wherein a MO is a listening opportunity for a particular search space or DCI format when determining each time-domain transmission unit in the absolute time-domain pattern using the MO.

42. The base station of claim 36, wherein in using slots to determine each time domain transmission unit in the absolute time domain pattern, further comprising one or a combination of:

43. An information transmission apparatus, comprising:

44. A terminal, comprising:

45. The terminal of claim 44, wherein the determining the absolute time domain pattern of the downlink control channel transmission/reception information is determining one or more absolute time domain patterns of the transmission/reception information in N system frames according to the absolute time number, wherein N is a positive integer greater than or equal to 1.

46. The terminal of claim 44, wherein the absolute time domain pattern of the sent and received information is a time domain range of a channel for repeated transmissions.

47. The terminal of claim 46, wherein after receiving the repeatedly transmitted information on the downlink control channel according to the absolute time domain pattern, further comprising:

48. The terminal of claim 44, wherein the absolute time domain pattern is indicated by a predefined manner; and/or the presence of a gas in the gas,

49. The terminal of claim 48, wherein prior to acquiring an absolute time domain pattern via the RRC signaling or SIB1, further comprising:

50. The terminal of claim 48, wherein when the network side configures or defines a plurality of absolute time domain patterns, further comprising:

51. The terminal of any of claims 44 to 50, wherein each time domain transmission unit within the absolute time domain pattern is determined in one or a combination of the following ways:

52. The terminal of claim 51, wherein the basic time unit is a time slot or a listening opportunity of a downlink control channel when determining each time domain transmission unit in the absolute time domain pattern.

53. The terminal of claim 51, wherein in determining each time-domain transmission unit in the absolute time-domain pattern using a slot, the n is a number of consecutive basic time units or a number of discrete time units.

54. The terminal of claim 51, wherein in determining each time domain transmission unit in the absolute time domain pattern using slots, all slots are numbered, either all uplink available slots or all downlink available slots in N system frames.

55. The terminal of claim 51, wherein in using slots to determine each time-domain transmission unit in the absolute time-domain pattern, the transmission time-domain units of the absolute time-domain pattern contain K slots that are not contiguous.

56. The terminal of claim 51, wherein an MO is a listening opportunity for a particular search space or DCI format when the MO is used to determine each time domain transmission unit in the absolute time domain pattern.

57. The terminal of claim 51, wherein in using slot to determine each time-domain transmission unit in the absolute time-domain pattern, further comprising one or a combination of:

58. An information transmission apparatus, comprising:

59. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 28.