CN113949493B

CN113949493B - Information transmission method, equipment, device and medium

Info

Publication number: CN113949493B
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: 2023-07-25
Anticipated expiration: 2040-07-17
Also published as: CN113949493A

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 the downlink control channel transmitting and receiving information according to the related technical characteristics of the downlink control channel; and transmitting and/or receiving the repeatedly transmitted information in the downlink control channel according to the absolute time domain pattern. The invention provides a repeated transmission scheme of a downlink control channel; and the base station side and the terminal side can be guaranteed to have consistent understanding on the sending and receiving of the data, and the reliability of the data sending is improved.

Description

Information transmission method, equipment, device and medium

Technical Field

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

Background

The prior art has the following defects: in the prior art, the repeated transmission of the downlink control channel is not involved, so that the related technical scheme of the repeated transmission of the downlink control channel is not provided.

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 transmitting and receiving information according to an implicit or explicit indication mode;

and sending repeated sending information in a downlink control channel according to the absolute time domain pattern.

In implementation, determining the absolute time domain pattern of the downlink control channel transmitting and receiving information is determining 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 repeated transmission of the channel.

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

and repeatedly transmitting information on a corresponding channel on each receiver in a time domain range defined by the absolute time domain pattern.

In practice, the absolute time domain pattern is indicated by a predefined manner; and/or the number of the groups of groups,

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 the acquiring the absolute time domain pattern by 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 side 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 practice, each time domain transmission unit within the absolute time domain pattern is determined in one or a combination of the following ways:

in the N system frames, M slots are included in total, 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; or alternatively, the first and second heat exchangers may be,

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 MOs are numbered and recorded as #n (# 0, #1, …), and then all MOs satisfying the formula floor (N/K) =q belong to the Q-th transmission time domain unit in the absolute time domain pattern; or alternatively, the first and second heat exchangers may be,

When one transmission time domain unit in the absolute time domain pattern received by the downlink control channel is K continuous valid MOs, in N system frames, M valid MOs are contained in total, all MOs are numbered, and denoted as #n (# 0, #1, …), and all MOs satisfying the formula mod (N, K) =q belong to the Q-th transmission time domain unit in the absolute time domain pattern.

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

In practice, when determining each time domain transmission unit within the absolute time domain pattern using slots, the n is the number of a continuous basic time unit or the number of a discrete time unit.

In implementation, when determining each time domain transmission unit in the absolute time domain pattern by using slots, all slots are numbered, and all uplink available slots or downlink available slots in N system frames are numbered.

In practice, when 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 discontinuous K slots.

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

In practice, when determining each time domain transmission unit within the absolute time domain pattern using slots, one or a combination of the following processes are further included:

in the transmission time domain unit, the base station transmits the downlink control channel which needs to be combined and received on the same PDCCH transmitting in the same search space; or,

in the transmission time unit, the base station repeatedly transmits 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 an implementation, after receiving the repeatedly sent information in the downlink control channel according to the absolute time domain pattern, the method further includes:

repeatedly transmitting information on a corresponding channel on each receiver in a time domain range defined by the absolute time domain pattern; and/or the number of the groups of groups,

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

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

and 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 reception on the CORESET with the same ID.

A base station, comprising:

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

transmitting repeated information in a downlink control channel according to the absolute time domain pattern;

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

An information transmission apparatus comprising:

the base station determining module is used for determining an absolute time domain pattern of the downlink control channel transmitting and receiving information according to an implicit or explicit indication mode;

and the base station transmitting module is used for transmitting the repeated transmitted information in 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 downlink control channel transmitting and receiving information according to an implicit or explicit indication mode;

and the terminal receiving module is used for receiving the repeatedly transmitted 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, the repeated transmission scheme of the downlink control channel is provided because the information is transmitted according to the absolute time domain pattern when the channel repeatedly transmits the information;

Furthermore, the base station side and the terminal side can be guaranteed to have consistent understanding on data transmission and reception, 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 do not constitute a limitation on the invention. In the drawings:

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

FIG. 2 is a schematic diagram of 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 schematic diagram of an absolute time domain pattern according to embodiment 5 of the present invention;

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

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

Detailed Description

The inventors noted during the course of the invention that:

in 5G NR (5G New RAT;5 ^th Generation New RAT; RAT: radio access technology, radio Access Technology), the downlink data channel and the 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-layer parameters, and after the terminal receives the relevant scheduling information, the terminal can determine the exact time starting point and the time range of repeated transmission through the scheduling information and the transmission time of the relevant data channel, so that the transmission and the reception of the data can be successfully completed.

Similarly, the repeated transmission of the uplink control channel PUCCH (physical uplink control channel ) is configured by the higher layer signaling for repeated transmission times, and then the starting position and the duration time range of the transmission are determined according to PDSCH HARQ-ACK timing (PDSCH HARQ-ACK feedback timing relation; PDSCH: physical downlink shared channel, physical downlink shared channel; HARQ-ACK: hybrid automatic repeat request acknowledgement, hybrid automatic repeat request acknowledgement) instructed 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 diagram of a configuration when PDSCH slot aggregation level =4, and a specific example of specific PDSCH slot aggregation level (PDSCH slot aggregation level) =4 is shown.

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

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, the terminal has no prior information except for the higher layer 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 a combining way, so that deviation from understanding of the network side is caused, and the downlink control channel fails to be received.

In other words, for the downlink control channel, the current working mechanism cannot inform the terminal of the specific time domain position where to begin to combine and receive, so that the network side and the terminal side do not have consistent understanding of the behavior of sending and receiving of the downlink control channel.

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

The following describes specific 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 mutually in concert, 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 cooperation of the two will be given to better understand the implementation of the scheme given in the embodiment of the invention. Such a description does not mean that the two must be implemented cooperatively or separately, and in fact, when the terminal and the base station are implemented separately, they solve the problems of the terminal side and the base station side, respectively, 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, and as shown in the drawing, may include:

step 201, determining an absolute time domain pattern of the downlink control channel transmitting and receiving information according to the related technical characteristics of the downlink control channel;

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

The absolute time domain pattern is defined according to a radio frame determined by the system time, namely, the time domain pattern is defined in the range of the system radio frame, and the current system radio frame is 1024 frames; "time domain" also refers to time resources; "pattern" refers to the representation of time domain resources in the form of patterns. It is obvious that the present application does not exclude other forms or modes and carriers for carrying the information of sending and receiving information of the downlink control channel.

Specifically, according to the relevant technical characteristics of the downlink control channel (such as search space, DCI (downlink control information, downlink Control information) format, monitor opportunity, CORESET (control resource set ), etc.), one or more absolute time domain patterns of transmission and reception of the downlink control channel can be defined by a predefined or explicit signaling indication manner, and the network side and the terminal side complete transmission and reception of the downlink control channel according to the defined absolute time domain patterns. The absolute time domain pattern of the downlink control channel transmitted and received indicates the time domain range in which the channel is repeatedly transmitted and received.

In an implementation, after 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 number of the groups of groups,

when one transmission time domain unit in the absolute time domain pattern received by the downlink control channel is K continuous valid MOs, in N system frames, M valid MOs (monitoring time, monitoring Occasion) are included in total, all MOs are numbered and recorded as #n (# 0, #1, …), and then all MOs satisfying the formula floor (N/K) =q belong to the Q-th transmission time domain unit in the absolute time domain pattern; or alternatively, the first and second heat exchangers may be,

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

In the transmission time unit, the terminal performs combined reception on the CORESET with the same ID;

The following will explain the implementation from both sides.

Terminal side:

and the terminal side determines the absolute time domain pattern of the downlink control channel transmission and reception according to a predefined mode of a protocol 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 numbers, wherein N is a positive integer greater than or equal to 1.

2. The absolute time domain pattern of the transmission and the reception is the time domain range of the repeated transmission of the channel.

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, radio Resource Control), SIB (system information block ) 1, mib (master information block, 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 in total, all slots are numbered, and 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 monitor opportunity of a downlink control channel.

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

(3) Further, all uplink available time slots or downlink available time slots in N system frames may also be numbered, e.g. containing M in total _dl Multiple downlink available time slots and M _ul The uplink available time slots are respectively marked as #n _dl (# 0, #1, …) and #n _ul (# 0, #1, …), the formula Floor (n) is satisfied _dl /K)＝Q _dl Or Floor (n) _ul /K)＝Q _ul All downlink available time slots or uplink available time slots of the (b) belong to the Q < th > in the same absolute time domain _dl Or Q _ul And transmit time domain units.

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

(5) The determining manner of the absolute time domain pattern of the downlink control channel based on the above manner may further include:

(1) In combination with the search space configuration in the above manner, i.e. in the transmission time domain unit, the terminal only merges the downlink control channels transmitted in the same search space, or,

(2) In combination with a specific DCI format, i.e. in the transmission time unit, the terminal only performs combined reception of the same DCI format, or,

(3) In combination with a specific CORESET as described above, i.e. during said transmission time unit the terminal only receives a combination of CORESETs with the same ID.

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

One transmission time domain unit in the absolute time domain pattern received by the downlink control channel is K consecutive valid MOs (listening time, monitoring occasion), and then there are:

(1) In N system frames, a total of M valid MO (Monitoring Occasion) are included, numbering is performed on all MOs, denoted as #n (# 0, #1, …), and then all MOs satisfying the formula floor (N/K) =q belong to the Q-th transmission time domain unit in the absolute time domain pattern;

or, in N system frames, M valid MOs are included in total, and all MOs are numbered as #n (# 0, #1, …), then all MOs satisfying the formula mod (N, K) =q belong to the Q-th transmission time-domain unit in the absolute time-domain pattern.

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

5. The terminal determines, according to the explicit signaling of the network side, one or more absolute time patterns that are actually effective when detecting the downlink control channel, as follows:

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 adopted by the downlink control channel detection and reception may be determined in a predefined manner by a protocol, or an absolute time domain pattern adopted by the downlink control channel detection and reception may be acquired by 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 adopted by the downlink control channel transmission and reception through the L1 signaling.

Base station side:

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

1. And the base station determines one or more absolute time domain patterns transmitted and received in N system frames according to the absolute time numbers, 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 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 in total, all slots are numbered, and 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.

(2) Further, all uplink available time slots or downlink available time slots in N system frames may also be numbered, e.g. containing M in total _dl Multiple downlink available time slots and M _ul The uplink available time slots are respectively marked as #n _dl (# 0, #1, …) and #n _ul (# 0, #1, …), the formula Floor (n) is satisfied _dl /K)＝Q _dl Or Floor (n) _ul /K)＝Q _ul All downlink available time slots or uplink available time slots of the (b) belong to the Q < th > in the same absolute time domain _dl Or Q _ul And transmit time domain units.

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

(4) The determining manner of the absolute time domain pattern of the downlink control channel based on the above manner may further include:

in combination with the search space configuration in the above manner, i.e. in the transmission time domain unit, the base station only transmits the downlink control channel to be received in combination on the same PDCCH transmitting in the same search space, or,

In combination with a specific DCI format, the above manner, i.e. in the transmission time unit, the base station only repeatedly transmits the same DCI format, or,

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

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

for the downlink control channel, one transmission time domain unit in the absolute time domain pattern sent by the downlink control channel is K consecutive valid MO (monitoring occasion), and then there are:

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

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

6. The base station indicates, through explicit signaling, one or more absolute time patterns that are actually valid when the terminal detects that the downlink control channel is received, where:

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 adopted for downlink control channel detection and reception is determined in a predefined manner of a protocol, or an absolute time domain pattern adopted for downlink control channel detection and reception is acquired through an indication signaling carried in an MIB.

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

The following is an example.

Example 1:

it is assumed that an absolute time domain pattern of channel transmissions is defined within N system frames, in this embodiment n=4. Assuming a subcarrier spacing of 15kHz for the system, 40 slots are included in every 4 system frames and numbered 0-39. And determining the time domain range slot where the repeated transmission of the channel is positioned as granularity, and repeating in K slots each time, 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 a protocol. Fig. 3 is a schematic diagram of the absolute time domain pattern of embodiment 1, and the absolute time domain patterns corresponding to k=1/2/3/4 are shown in fig. 3 below, respectively. Taking an absolute time domain pattern of k=4 as an example, dividing all time slots in every 4 system frames into time domain transmission units with different numbers according to a formula floor (n, K) =o, for example, n=0/1/2/3 and 4 are all 0 after modulo operation, which indicates that slot #0/1/2/3 constitutes the time domain transmission unit with # 0. And so on.

In a practical system, other various absolute time domain patterns and other numbers of absolute time domain patterns may be defined in a predefined manner. In practical systems, various kinds of absolute time domain patterns and other numbers of absolute time domain patterns can be defined through various explicit signaling configurations such as RRC signaling, SIB1, MIB and the like.

The base station may inform one or more absolute time domain patterns actually employed in the terminal system through explicit signaling. For example, the base station informs the absolute time domain pattern actually used for data transmission in the terminal system of k=2 and k=4 by explicit signaling. Furthermore, when the base station and the terminal transmit data, 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 can be indication information carried by RRC signaling, indication information carried by SIB1 or indication information carried by MIB 1.

When transmitting data, the base station can repeatedly transmit or combine the data on the available resources in one transmission time domain unit in the absolute time domain pattern, thereby enhancing the reliability of data transmission.

Example 2:

As in embodiment 1, it is assumed that the absolute time domain defining the channel transmission within N system frames is definedIn the present embodiment, n=4 is assumed as the pattern. Assuming a sub-carrier spacing of 15kHz for the system, 40 slots are contained within each 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 dddddfuuuuu, 40 slots are divided into two groups according to slot groups available for downlink transmission and slot groups available for uplink transmission, and numbers in DL transmission group (downlink transmission group) are {0,1,2, …,23}, numbers in UL transmission group (uplink transmission group) are {0,1,2, …,15}. It should be noted that in this embodiment, it is assumed that the F slots can be used for both uplink and downlink transmission, so the statistics of the F slots are performed in both groups. And determining the time domain range slot where the repeated transmission of the channel is positioned as granularity, and repeating in K slots each time, 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 by means of a protocol predefined or explicit signaling indication. Fig. 4 is a schematic diagram of the absolute time domain pattern of embodiment 2, and the absolute time domain patterns corresponding to k=1/2 are shown in fig. 4, respectively. As in the case of embodiment 1, according to the formula mod (n _dl ，K)＝O _dl Or mod (n) _ul ，K)＝O _ul Each downlink transmission time slot and each uplink transmission time slot are divided into time domain transmission units with the number of O.

Example 3:

it is assumed that an absolute time domain pattern of channel transmissions is defined within N system frames, in this embodiment n=4. Assuming a subcarrier spacing of 15kHz for the system, 40 slots are included in every 4 system frames and numbered 0-39. And determining the time domain range slot where the repeated transmission of the channel is positioned as granularity, and repeating in K slots each time, 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 by means of a protocol predefined or explicit signaling indication. Fig. 5 is a schematic diagram of an absolute time domain pattern of embodiment 3, and the absolute time domain pattern corresponding to k=2 is shown in fig. 5.

In this embodiment, the time slots contained in the transmission time domain units in each absolute time domain pattern are discontinuous. A specific numbering scheme is that a transmission time domain unit with even number only contains slots with even number and a transmission time domain unit with odd number only contains slots with odd number.

It should be noted that the present application is limited to a list of all numbering schemes, and does not exclude any other scheme that can implement a transmission time domain unit including discontinuous slots.

Example 4:

any of the schemes of embodiments 1-3 may be applied to any physical channel, such as PDCCH (physical downlink control channel ), PUCCH (physical uplink control channel, physical Uplink Control Channel), PDSCH (physical downlink shared channel ), PUSCH (physical uplink shared channel, physical Uplink shared channel), PBCH (physical broadcast channel ), and the like.

Example 5:

any of the schemes described in embodiments 1-3, when applied to the downlink control channel, can be bound to the MO (listening time, monitoring occasion) of the search space. In the context of the above embodiment, it is assumed in this embodiment that an absolute time domain pattern defining channel transmissions within n=2 system frames is specified. 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 less than one slot. In this embodiment, examples are given in which the listening period of the SS is smaller than 1 slot (7 OFDM (orthogonal frequency division multiplexing, orthogonal frequency division multiplex) symbols), equal to one slot, and greater than one slot (2 slots), respectively. And on this basis, let k=2.

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

In each time domain transmission unit, the base station repeatedly transmits 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 those PDCCH candidates to transmit at each transmission location in the time domain transmission unit, and the present application is not limited in any way; at the terminal side, how the terminal performs combining reception on the PDCCH is not limited in the present application.

Example 6:

the arbitrary scheme described in embodiments 1-3, when applied to the downlink control channel, the repetition factor K is still a slot, and the number of PDCCH retransmissions is K times the number of MOs contained in each slot.

In the context of any of embodiments 1-3, assuming that the number of SFNs (system frame numbers, system frame number) is 4 and the listening period of the search space is 7 OSs, two MOs are contained in each slot. Assuming that k=4, when transmitting the downlink control channel, the base station side repeatedly transmits 4*2 =8 times to the PDCCH in each time domain transmission unit, and the terminal side performs combining reception on 8 PDCCHs in the time domain transmission unit. For another example, assuming that the listening period of the search space is 2 slots, 1 MO is contained in every two slots. Also, assuming that k=4, when the base station side transmits the downlink control channel, the base station side repeatedly transmits 4×1/2=2 times 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, can be bundled with CORESET (control resource set ). For details, reference may be made to embodiment 5, and this embodiment will not be described again.

Example 8:

as described in embodiments 1-6, when applied to a downlink control channel, can be bundled with DCI formats. For details, reference may be made to embodiment 5, and this embodiment will not be described again.

Example 9:

as described in embodiments 1-8, the network side may further dynamically switch the absolute time pattern adopted in the actual transmission process of the channel through L1 signaling. For example, assuming that the K set notified by the base station through RRC signaling or SIB1 or MIB1 is {1 2 4 8}, the network side may dynamically adjust the value of K actually adopted 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 is adopted, the terminal and the base station obtain a default K value (default K) by the following method:

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

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

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: at MIB or SIB1;

scheme 2. Default K is agreed by the predefined mode of the protocol.

Based on the same inventive concept, the embodiments of the present invention further provide a base station, a terminal, an information transmission device, and a computer readable storage medium, and because the principle of solving the problem of these devices is similar to that of the information transmission method, the implementation of these devices can refer to the implementation of the method, and the repetition is omitted.

In implementing the technical scheme provided by the embodiment of the invention, the method can be implemented as follows.

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

the processor 700 is configured to read the program in the memory 720, and execute the following procedures:

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

Wherein in fig. 7, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 700 and various circuits of memory represented by memory 720, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements, i.e. comprising a transmitter and a receiver, providing 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.

The embodiment of the invention also provides an information transmission device, which comprises:

Specific implementation can be seen from the implementation of the information transmission method at the base station side.

For convenience of description, the parts of the above apparatus are described as being functionally divided into various modules or units, respectively. Of course, the functions of each module or unit may be implemented in the same piece or pieces of software or hardware when implementing the present invention.

Fig. 8 is a schematic diagram of a terminal structure, as shown in the figure, including:

processor 800, for reading the program in memory 820, performs the following processes:

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

Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 800 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 810 may be a plurality of elements, i.e., including a transmitter and a receiver, providing 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 an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, 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.

Specific implementation can be seen from the implementation of the information transmission method at the terminal side.

There is also provided in an embodiment of the present invention a computer-readable storage medium storing a computer program for executing the above-described information transmission method.

The specific implementation can be seen from the implementation of the information transmission method at the network side and/or the base station side.

In summary, in the technical solution provided in the embodiment of the present invention, one or more absolute time domain patterns of transmission and reception of channels are defined by 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 patterns.

The absolute time domain pattern of the channel transmission and reception indicates the time domain range in which the channel repetition transmission and reception are located.

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

It will be appreciated by those skilled in the art that 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, magnetic 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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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 modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An information transmission method, comprising:

determining an absolute time domain pattern of the downlink control channel transmitting and receiving information, wherein the absolute time domain pattern of one or more transmitting and receiving information is determined in N system frames according to absolute time numbers, and N is a positive integer greater than or equal to 1;

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 in total, 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; or alternatively, the first and second heat exchangers may be,

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 MOs are numbered and recorded as # N (# 0, #1, …), and all MOs meeting the formula floor (N/K) =Q belong to the Q-th transmission time domain unit in the absolute time domain pattern; or alternatively, the first and second heat exchangers may be,

2. 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 transmission.

3. The method of claim 2, further comprising, after transmitting the repeatedly transmitted information in the downlink control channel in accordance with the absolute time domain pattern:

4. The method of claim 1, wherein the absolute time domain pattern is indicated by a predefined manner; and/or the number of the groups of groups,

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.

5. The method of claim 4, further comprising, prior to acquiring an absolute time domain pattern by the RRC signaling or SIB 1:

6. The method of claim 4, wherein when the network side configures or defines a plurality of absolute time domain patterns, further comprising:

7. The method of claim 1, wherein the base time unit is a listening opportunity for a time slot or a downlink control channel in determining each time domain transmission unit in the absolute time domain pattern.

8. The method of claim 1, wherein the n is a number of consecutive basic time units or a number of discrete time units when determining each time domain transmission unit within the absolute time domain pattern using slots.

9. The method of claim 1, wherein numbering all slots is numbering all uplink or downlink available slots within N system frames when determining each time domain transmission unit within the absolute time domain pattern using slots.

10. The method of claim 1, wherein in determining each time domain transmission unit within the absolute time domain pattern using slots, the transmission time domain unit of the absolute time domain pattern comprises discontinuous K slots.

11. The method of claim 1, wherein the 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.

12. The method of claim 1, 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 transmits a downlink control channel which needs to be combined and received on the same physical downlink control channel candidate PDCCH candidate in the same search space; or,

in a transmission time unit, the base station repeatedly transmits the same downlink control information format (DCI format); or,

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

13. An information transmission method, comprising:

14. The method of claim 13, wherein the absolute time domain pattern of the transmitted and received information is a time domain range of a channel for repeated transmission.

15. The method of claim 14, further comprising, after receiving the repeatedly transmitted information in the downlink control channel according to the absolute time domain pattern:

16. The method of claim 13, wherein the absolute time domain pattern is indicated by a predefined manner; and/or the number of the groups of groups,

17. The method of claim 16, further comprising, prior to acquiring an absolute time domain pattern by the RRC signaling or SIB 1:

18. The method of claim 16, wherein when the network side configures or defines a plurality of absolute time domain patterns, further comprising:

19. The method of claim 13, wherein the base time unit is a listening opportunity for a time slot or a downlink control channel in determining each time domain transmission unit in the absolute time domain pattern.

20. The method of claim 13, wherein the n is a number of consecutive base time units or a number of discrete time units when determining each time domain transmission unit within the absolute time domain pattern using slots.

21. The method of claim 13, wherein numbering all slots is numbering all uplink or downlink available slots within N system frames when determining each time domain transmission unit within the absolute time domain pattern using slots.

22. The method of claim 13, wherein in determining each time domain transmission unit within the absolute time domain pattern using slots, the transmission time domain unit of the absolute time domain pattern comprises discontinuous K slots.

23. The method of claim 13, wherein the 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.

24. The method of claim 13, 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 unit, the terminal performs combined reception on the same DCI format, or,

the terminals receive the CORESET with the same ID in combination in the transmission time unit.

25. A base station, comprising:

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

26. The base station of claim 25, wherein the absolute time domain pattern of the transmitted and received information is a time domain range of a channel for repeated transmission.

27. The base station of claim 26, wherein after transmitting the repeatedly transmitted information in the downlink control channel according to the absolute time domain pattern, further comprising:

28. The base station of claim 25, wherein the absolute time domain pattern is indicated by a predefined manner; and/or the number of the groups of groups,

29. The base station of claim 28, further comprising, prior to acquiring an absolute time domain pattern by the RRC signaling or SIB 1:

30. The base station of claim 28, wherein when the network side configures or defines a plurality of absolute time domain patterns, further comprising:

31. The base station of claim 25, wherein the base time unit is a listening opportunity for a time slot or a downlink control channel in determining each time domain transmission unit in the absolute time domain pattern.

32. The base station of claim 25, wherein the n is a number of consecutive base time units or a number of discrete time units when determining each time domain transmission unit within the absolute time domain pattern using slots.

33. The base station of claim 25, wherein numbering all time slots is numbering all uplink or downlink available time slots within N system frames when determining each time domain transmission unit within the absolute time domain pattern using slots.

34. The base station of claim 25, wherein in determining each time domain transmission unit within the absolute time domain pattern using slots, the transmission time domain unit of the absolute time domain pattern comprises discontinuous K slots.

35. The base station of claim 25, wherein when determining each time domain transmission unit in the absolute time domain pattern using an MO, the MO is a listening opportunity for a particular search space or DCI format.

36. The base station of claim 25, 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 transmits a downlink control channel which needs to be combined and received on the same PDCCH transmitting in the same search space; or,

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

37. An information transmission apparatus, comprising:

The base station transmitting module is used for transmitting repeated transmitted information in a downlink control channel according to the absolute time domain pattern;

38. A terminal, comprising:

39. The terminal of claim 38, wherein the absolute time domain pattern of the transmitted and received information is a time domain range in which a channel is repeatedly transmitted.

40. The terminal of claim 39, further comprising, after receiving the repeatedly transmitted information in the downlink control channel according to the absolute time domain pattern:

41. The terminal of claim 38, wherein the absolute time domain pattern is indicated by a predefined manner; and/or the number of the groups of groups,

42. The terminal of claim 41, further comprising, prior to acquiring an absolute time domain pattern by the RRC signaling or SIB 1:

43. The terminal of claim 41, wherein when the network side configures or defines a plurality of absolute time domain patterns, further comprising:

44. The terminal of claim 38, wherein the base time unit is a listening opportunity for a time slot or a downlink control channel in determining each time domain transmission unit in the absolute time domain pattern.

45. The terminal of claim 38, wherein n is a number of consecutive basic time units or a number of discrete time units when determining each time domain transmission unit within the absolute time domain pattern using slots.

46. The terminal of claim 38, wherein numbering all time slots is numbering all uplink or downlink available time slots within N system frames when determining each time domain transmission unit within the absolute time domain pattern using slots.

47. The terminal of claim 38, wherein in determining each time domain transmission unit within the absolute time domain pattern using slots, the transmission time domain unit of the absolute time domain pattern comprises discontinuous K slots.

48. The terminal of claim 38, wherein when determining each time domain transmission unit in the absolute time domain pattern using an MO, the MO is a listening opportunity for a particular search space or DCI format.

49. The terminal of claim 38, wherein in determining each time domain transmission unit within the absolute time domain pattern using slots, further comprising one or a combination of:

50. An information transmission apparatus, comprising:

a terminal receiving module, configured to receive, according to the absolute time domain pattern, information that is repeatedly sent in a downlink control channel;

51. 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 24.