CN112954796A

CN112954796A - Sending method, receiving method, network equipment and terminal

Info

Publication number: CN112954796A
Application number: CN201911264812.6A
Authority: CN
Inventors: 胡丽洁; 杨拓; 王飞; 夏亮; 张轶; 王启星
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2021-06-11
Anticipated expiration: 2039-12-11
Also published as: CN112954796B; WO2021115361A1

Abstract

The invention provides a sending method, a receiving method, network equipment and a terminal, wherein the transmission method comprises the following steps: transmitting the PDCCH in a type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB; the type0-PDCCH common search space detection start slot is related to information carried by a master information block MIB in PBCH and a predefined time parameter, or the type0-PDCCH common search space detection start slot is related to information carried by an MIB in PBCH and transmission information of PBCH or SSB that is repeatedly transmitted. Due to the fact that the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly have time offsets, the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly can be different, and the UE can conduct scheduling of broadcast information on the basis of the PDCCHs in the search spaces with certain time offsets.

Description

Sending method, receiving method, network equipment and terminal

Technical Field

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

Background

As the coverage of the terminal shrinks, for example, the number of antennas is reduced, which results in poor reception performance and reduced coverage. In order to guarantee the coverage of such services, a design of coverage enhancement is required.

In order to compensate for the PBCH coverage shrinkage caused by UE capability reduction, the PBCH transmission can be increased by one time in theory by reducing the PBCH retransmission transmission time interval, for example, the existing default 20ms retransmission time interval is reduced to 10ms period, and 3dB coverage enhancement can be achieved by combining.

When PBCH increases more times of repeated transmissions, the transmission of a Physical Downlink Control Channel (PDCCH) of type0 (hereinafter referred to as type0-PDCCH) also increases coverage accordingly, and a detection position is determined for the increased repeated transmissions.

However, according to the existing formula for determining the detection start time slot of the type0-PDCCH, after increasing the number of PBCH retransmission times, the detection start time slots of the type0-PDCCH determined by the PBCH retransmission times are the same, so that a User Equipment (UE) cannot detect the PBCH or a Synchronization Signal and PBCH block (SSB) transmitted repeatedly.

Disclosure of Invention

Embodiments of the present invention provide a sending method, a receiving method, a network device, and a terminal, so as to solve a problem that after PBCH repeat transmission times are increased, detection start time slots of type0-PDCCH determined by the PBCH repeat transmission are the same, which results in that a UE cannot detect the PBCH or SSB repeat transmission.

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

in a first aspect, an embodiment of the present invention provides a sending method, used for a network device, where the sending method includes:

transmitting a PDCCH in a type0 physical downlink control channel type0-PDCCH common search space corresponding to a physical broadcast channel PBCH which is repeatedly transmitted or a synchronization signal SSB which is repeatedly transmitted;

the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by the MIB in PBCH and transmission information of the PBCH or SSB which is transmitted repeatedly.

In a second aspect, an embodiment of the present invention provides a receiving method, where the receiving method is used for a terminal, and the receiving method includes:

determining a detection starting time slot of a type0 physical downlink control channel type0-PDCCH common search space corresponding to a physical broadcast channel PBCH or a synchronization signal SSB which are transmitted repeatedly;

the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by the MIB in PBCH and transmission information of the PBCH or SSB which is transmitted repeatedly;

and detecting a Physical Downlink Control Channel (PDCCH) in a type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB.

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

the transceiver is used for transmitting PDCCH in a type0 physical downlink control channel type0-PDCCH common search space corresponding to a physical broadcast channel PBCH which is repeatedly transmitted or a synchronization signal SSB which is repeatedly transmitted;

In a fourth aspect, an embodiment of the present invention provides a terminal, including a processor and a transceiver;

the processor is configured to determine a detection start time slot of a type0 physical downlink control channel type0-PDCCH common search space corresponding to a physical broadcast channel PBCH for repeated transmission or a synchronization signal SSB for repeated transmission;

the transceiver is configured to detect a physical downlink control channel PDCCH in a type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB.

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

a sending module, configured to transmit a PDCCH in a type0 physical downlink control channel type0-PDCCH common search space corresponding to a repeatedly transmitted physical broadcast channel PBCH or a repeatedly transmitted synchronization signal SSB;

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

a determining module, configured to determine a detection start time slot of a type0 physical downlink control channel type0-PDCCH common search space corresponding to a physical broadcast channel PBCH for repeated transmission or a synchronization signal SSB for repeated transmission;

a receiving module, configured to detect a physical downlink control channel PDCCH in a type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB.

In a seventh aspect, an embodiment of the present invention provides a network device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when executed by the processor, the computer program implements the steps in the transmission method according to the first aspect.

In an eighth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps in the receiving method according to the second aspect.

In a ninth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps in the transmitting method according to the first aspect, or the computer program, when executed by a processor, implements the steps in the receiving method according to the second aspect.

In the embodiment of the invention, the PDCCH is transmitted in a type0-PDCCH common search space corresponding to the PBCH or SSB which is transmitted repeatedly; since the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by MIB in PBCH and transmission information of the repeatedly transmitted PBCH or SSB, the detection start time slot of the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB has time offset in a time domain. Due to the fact that the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly have time offsets, the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly can be different, and the UE can conduct scheduling of broadcast information on the basis of the PDCCHs in the search spaces with certain time offsets.

Drawings

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

Fig. 1 is a flowchart of a transmitting method according to an embodiment of the present invention;

fig. 2 and fig. 3 are schematic diagrams of PBCH transmission according to an embodiment of the present invention;

fig. 4 and fig. 5 are schematic diagrams of a Type0-PDCCH detection start slot position of repeated transmission according to an embodiment of the present invention;

fig. 6 is a flowchart of a receiving method according to an embodiment of the present invention;

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

fig. 8 is a diagram of another network device architecture provided by an embodiment of the present invention;

fig. 9 is a diagram of a terminal structure according to an embodiment of the present invention;

fig. 10 is a diagram of another terminal structure according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a flowchart of a sending method provided in an embodiment of the present invention, which is applied to a network device, and as shown in fig. 1, the sending method includes the following steps:

step 101, transmitting PDCCH in a type0-PDCCH common search space corresponding to a PBCH or SSB of repeated transmission; the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by the MIB in PBCH and transmission information of the PBCH or SSB which is transmitted repeatedly.

The predefined time parameter is a time value in a time slot or an absolute time duration unit, that is, the predefined time parameter is a numerical value in a time slot or an absolute time duration unit (e.g., 5 ms).

The method of the embodiment of the present invention may be used in a scenario of PBCH repeated transmission in the SSB, and may also be used in a scenario of PBCH repeated transmission in the SSB, that is, only PBCH repeated transmission is performed, and a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) are not repeatedly transmitted. When only PBCH part is repeatedly transmitted (PSS and SSS are not retransmitted), there is a complete SSB transmission corresponding to it, and the PBCH of the SSB is exactly the same as the content carried by the repeated PBCH, e.g. SSB that can be used for legacy NR terminal access. Therefore, for the transmission only with the repetition of PBCH, the type0-PDCCH common search space corresponding to the transmission also exists correspondingly. In a repeated transmission scenario of PBCHs in SSBs, each PBCH corresponds to one complete SSB.

It should be understood that the repeated transmission of SSBs in the embodiments of the present invention refers to multiple transmissions of SSBs with the same SSB index, and the repeated transmission of PBCH refers to multiple repeated transmissions of PBCH in SSBs with the same SSB index.

Specifically, for SSB index i (i.e. index i of SSB), the terminal will start at a starting slot n₀Detects the PDCCH in the type0-PDCCH search space in two consecutive slots, which is referred to herein as the type0-PDCCH common search space corresponding to the SSB i.

In the present embodiment, the PDCCH is transmitted in the type0-PDCCH common search space corresponding to the PBCH or SSB for repeated transmission; since the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by MIB in PBCH and transmission information of the repeatedly transmitted PBCH or SSB, the detection start time slot of the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB has time offset in a time domain. Due to the fact that the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly have time offsets, the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly can be different, and the UE can conduct scheduling of broadcast information on the basis of the PDCCHs in the search spaces with certain time offsets.

In an embodiment of the present application, the PBCH for repeated transmission or the SSB for repeated transmission are both located in even radio frames or both located in odd radio frames, and the number of transmissions in the same radio frame is greater than 1.

Specifically, when PBCH or SSB is repeatedly transmitted, the repeatedly transmitted PBCH or SSB transmission is located in the same radio frame, and is not scattered into two radio frames of 20 ms. Thus, only half frame indication bits in the PBCH can be changed, and the last bit of the radio frame number can not be changed, so that the complexity of PBCH detection can be reduced as much as possible.

This is explained in further detail below.

The PBCH transmission uses dual-layer scrambling according to the processing flow of the NR PBCH. In the first layer scrambling process, the unchanged content of the repeated transmission is scrambled, and the unchanged content comprises 24 bits of the upper layer, and the 1 st last bit and the 4 th last bit in the lowest 4 bits of the SFN.

If the PBCH or SSB of the repeated transmission is not located in the same radio frame, the last bit of the lowest 4 bits of the SFN of different PBCHs may change and cannot participate in the first layer scrambling, which increases the complexity of PBCH detection.

In the embodiment of the present invention, the PBCH or SSB that is repeatedly transmitted is located in the same radio frame, for example, simultaneously located in even radio frames or simultaneously located in odd radio frames, and the last bit of the lowest 4 bits of the SFN of the PBCH is the same, so that the existing NR procedure can be used for scrambling without increasing the complexity.

The following is further described with reference to the accompanying drawings. For example, to enhance PBCH coverage, 2 repeated PBCH transmissions within every 20ms are achieved using two half-frames of the same radio frame. The difference from the 10ms transmission period is that the 10ms periodic transmission is 10ms apart by two repeated transmissions within every 20ms, whereas the 2 PBCH transmissions within every 20ms are 5ms implemented using two half-frames of the same radio frame. Fig. 2 is a diagram illustrating a 10ms period, and fig. 3 is a diagram illustrating 2 repeated PBCH transmissions within 20ms using two half frames of the same radio frame. In fig. 2 and 3, a represents SSB0, B represents SSB1, C represents SSB2, and D represents SSB 3.

In the transmission scheme shown in fig. 3, since the PBCH for repeated transmission only occurs in odd radio frames or even radio frames, the lowest bits of the System Frame Number (SFN) are kept unchanged. Although the indication bit of a Half Radio Frame (HRF) may change, since the HRF does not undergo scrambling in the first layer, the UE performs blind detection by using a blind detection assumption manner similar to the 2 nd and 3 rd bits from the last number of the SFN, and thus PBCH can be merged.

In the transmission scheme shown in fig. 3, the PBCH is repeated by the SSB. Another way to achieve this is that the PSS and SSS in the SSB do not add repetition, but are still transmitted only once in 20ms, while the repeated transmissions spaced 5ms apart transmit only part of the PBCH.

In an embodiment of the present application, the SSBs corresponding to the PBCH of the repeated transmission or the SSBs of the repeated transmission have the same SSB index.

That is, the repeated transmission of SSBs in the embodiment of the present invention refers to multiple transmissions of SSBs having the same SSB index. Also, the repeated transmission of the PBCH refers to multiple transmissions of the PBCH corresponding to the same SSB index.

The time offset also means that, for the same SSB index i, the detection start time slot of the repeatedly transmitted SSBi or the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH corresponding to the SSB i is time-offset in the time domain.

In one embodiment of the present application, the transmission information includes at least one of the following information:

the repeated PBCH or SSB is located in a field, or a field indication bit carried by the PBCH;

the radio frame where the PBCH or SSB of the repeated transmission is located, or the radio frame number carried by the PBCH;

a transmission number index of the PBCH or SSB of the repeated transmission.

In an embodiment of the present application, the detection start time slot n of the type0-PDCCH common search space corresponding to the PBCH or SSB of the repeated transmission₀An offset is present, the detection start slot being a function of at least one of the following parameters:

a radio frame number at which the PBCH or SSB of the repeated transmission is located;

the value of the indication bit of the half frame corresponding to the PBCH or SSB transmitted repeatedly;

a transmission number index of the PBCH or SSB of the repeated transmission.

In an embodiment of the present application, the detection start time slot n of the type0-PDCCH common search space corresponding to the PBCH or SSB of the repeated transmission₀Comprises the following steps:

or

Or

Or

Or

Or

Or

Or

N is₀The detection start time slot number of the SSBi corresponding to the repeatedly transmitted PBCH or the type0-PDCCH common search space corresponding to the repeatedly transmitted SSBi is determined, i is the SSB index, and O is the detection start time slot number of the SSBi corresponding to the SSBiThe type0-PDCCH search space detects the sub-frame interval between the starting time slot and the starting position of the even frame, wherein A is the value of the lowest bit of SFN, B is the value of the half-frame indicating bit, S is the granularity of the time, and mu is the sub-carrier interval of CORESET # 0; the M is the equivalent time slot number occupied by the type0-PDCCH search space corresponding to the SSBi,

the number of time slots in one system frame of subcarrier spacing of a control resource set based on a bearer type 0-PDCCH; and j is the transmission number of the PBCH or SSB of the repeated transmission.

Specifically, an offset value related to a field indication value (which may be understood as a field indication bit value) and/or a radio frame number is introduced into a determination function for detecting a start time slot.

Wherein, the meanings of O and M are the same as the meanings agreed when the existing 3GPP protocol calculates n 0. A may also be a value obtained by modulo 2 of the SFN frame number where the PBCH is located in the repeated transmission, and is equivalent to the lowest bit of the SFN. The value of the lowest bit of the SNF here refers to the value of a 2-ary bit.

The following are described below.

Case one, n₀Relative to the radio frame number at which the PBCH or SSB of the repeated transmission is located.

Detection start time slot n of type0-PDCCH corresponding to PBCH or SSB of repeated transmission₀Is determined by:

for the SSB index i, assume that the corresponding detection start slot number is located in the radio frame SFN_CIf SFN_Cmod2 ═ 0, then the common search space for type0-PDCCH is located within even radio frames if SFN_Cmod2 is 1, then the common search space for type0-PDCCH is located in odd radio frames.

Assuming that the offset value of type0-PDCCH corresponding to PBCH of repeated transmission is shifted in units of S milliseconds (i.e. ms) or S time slots, i.e. S is granularity, adjacent shifts are S milliseconds or S time slots, A represents the lowest bit (1) of SFN^stleast significant bitS of the system frame number), and B represents the value of the field index (half frame index), usually 0 or 1, where S (unit is ms) is taken as an example and described below.

With respect to the SSB index i,

assumed to be located in radio frame SFN_CIn if, if

Namely SFN_Cmod2 is 0, then consider the common search space for type0-PDCCH to be located in even radio frames, if

Namely SFN_Cmod2 is 1, i.e., the common search space for type0-PDCCH is located in odd radio frames.

In the above embodiment, the (2A + B) S is understood as a predefined time parameter. In other words, in some fixed scenarios, such as one repeat transmission, the value of (2A + B) S may be predetermined, and (2A + B) S in the above formula is replaced with the predetermined time value.

When S corresponds to a time slot, a detection start time slot of type0-PDCCH corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB may be determined as follows:

for SSB indexing

Assumed to be located in radio frame SFN_CIn if, if

For example, if PBCH is located in the second half of an odd radio frame, the corresponding a is 1, B is 1, the offset value is (2 · a + B) · S — 3S, and if PBCH is located in the first half of an even radio frame, a is 0, B is 0, and there is no offset value.

The offset value may be associated with only the subframe number or half-frame indication if the PBCH (or SSB) is repeated only 1 time within 20ms, e.g., the PBCH is 10ms apart between two repeated transmissions within 20ms, when only the last bit of the subframe number has changed for the two PBCH transmissions. The detection start slot of type0-PDCCH can be determined as follows.

Case two, n₀And the value of the indication bit of the half frame corresponding to the PBCH or SSB which is transmitted repeatedly is related.

With respect to the SSB index i,

assume that the corresponding detection start slot number is located in the radio frame SFN_CIn if, if

Namely SFN_Cmod2 ═ 0, then the common search space for type0-PDCCH is located within even radio frames, if

Namely SFN_Cmod2 is 1, then the common search space for type0-PDCCH is located in odd radio frames. Or

The judgment of the radio frame SFN_CIn functions of odd or even frames, corresponding use

Replacement of

In the above embodiments, the AS may be understood AS a predefined time parameter. In other words, in some fixed scenarios, such AS one repeat transmission, the value of the AS may be predetermined, and the AS in the above formula may be replaced with the predetermined time value.

If PBCH is transmitted repeatedly only 1 time within 20ms, with both transmissions in two fields of the same radio frame, the offset value is only related to the field indication,

with respect to the SSB index i,

The judgment of the radio frame SFN_CIn formulae which are odd or even frames, the corresponding use

Replacement of

In the above embodiments, the BS may be understood as a predefined time parameter. In other words, in some fixed scenarios, such as one repeat transmission, the value of the BS may be predetermined and the BS in the above formula is replaced with the predetermined time value.

As shown in fig. 4, which is a diagram of implementation effect, two PBCH repetitions are both located in odd frames, but located in different half frames, and then the type0-PDCCH detection start slots corresponding to the two PBCH repetitions are offset by 5 ms. Fig. 4 is a schematic diagram of the detection start slot when the detection start slot of type0-PDCCH corresponds to index0 of table 38.213-11 every 3 rd half frame transmission of 20ms with 30KHz subcarrier spacing and SSB, wherein a represents repeated type0-PDCCH and SIB1 transmission, and b represents repeated PBCH transmission.

Detecting a starting time slot n₀But also as a function of the index of the number of transmissions of the PBCH or SSB for repeated transmissions. PBCH (or SSB) is transmitted N times every 20ms, and j may be numbered for each transmission based on the position of the PBCH, where j is 0, 1, …, N-1, and the slot position corresponding to the repeatedly transmitted type0-PDCCH is related to the number of PBCH repeated transmission.

For example: with respect to the SSB index i,

at radio frame SFN_CIn if, if

Then SFN_Cmod2 is 0, i.e., if it is located in an even radio frame

Then SFN_Cmod2 is 1, i.e., located in odd radio frames. Wherein, the HRF is a field indication indicating whether the field in which the PBCH transmission is located is the first field or the second field of the radio frame. Or

Replacement of

In the above embodiments, the jS is understood to be a predefined time parameter. In other words, in some fixed scenarios, such as one repeat transmission, the value of jS may be predetermined and jS in the above formula may be replaced with the predetermined time value.

It should be noted that in the present application, the PBCH may be transmitted only without transmitting the PSS or the SSS, or may be transmitted repeatedly by the entire SSB. The formula for determining the type0-PDCCH detection start slot is determined in a similar way, and when the repeated SSB is not complete, the repeated PBCH still has a corresponding relationship with the index SSB i of the complete SSB.

Besides the detection position of the type0-PDCCH indicated by the PBCH, some detection positions of different symbols of the same time slot or other time slots are introduced, and the detection position of the type0-PDCCH corresponding to the partially repeatedly transmitted PBCH is the position indicated by these non-PBCH, as shown in fig. 5, the detection position of the type0-PDCCH is 30KHz apart, SSB transmits in the 3 rd half frame of every 20ms, and the detection start time slot of the type0-PDCCH corresponds to index0 of tables 13-11 of 38.213, where c represents the detection position corresponding to the first transmission, d represents the detection position corresponding to the second transmission, e represents the detection position corresponding to the third transmission, f represents the detection position corresponding to the fourth transmission, and the positions identified by c and e are: the position of detection type0-PDCCH indicated by PBCH, the first symbol index is 0, and the positions identified by d and f are: additional detection type0 — location of PDCCH, starting symbol index 0.

By the design, forward compatibility can be realized, the detection position of the original type0-PDCCH indicated by PBCH is still effective, and the traditional UE can also obtain the detection start time slot of the corresponding type0-PDCCH through PBCH and carry out the detection of the PDCCH; the semi-static frame structure can be adapted by configuring an interval of S-5 ms.

In an embodiment of the present application, the content of Downlink Control Information (DCI) carried by all PDCCHs or a part of PDCCHs transmitted in the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB is the same.

Specifically, the code rate of type0-PDCCH at 8CCE is slightly larger than PBCH, PBCH can further have 4 combining gains within 80ms, and the type0-PDCCH standard does not support combining. In consideration of the transmission reliability, in the embodiment of the present invention, the transmission DCI content may be set to be identical, or some transmissions may be identical, for example, the DCI content may be identical through 8 transmissions of 160ms by standard convention, or some transmissions may be identical, for example, the first 4 transmissions are identical, and the last 4 transmissions are identical. By means of the constraint, the type0-PDCCH combination can be realized, and the transmission reliability of the type0-PDCCH is enhanced.

When DCI transmitted for all 8 times or a part of type0-PDCCH within 160ms is required to be the same, if the resource allocation domains thereof are completely the same, frequency domain resources of a scheduled Physical Downlink Shared Channel (PDSCH) are completely the same during 8 times of transmission, and a frequency diversity gain cannot be obtained. Therefore, in the specific embodiment of the present invention, frequency hopping is introduced between 8 transmissions: predefining a frequency hopping interval N as an interval of RBs of the frequency domain starting positions transmitted twice continuously; n may be a parameter related to the number of repeated transmissions, for example, B is the bandwidth of initial BWP of transmission type0, where N is B/L and L is the number of repeated transmissions.

That is, in one embodiment of the present application, the target PDSCHs scheduled by the DCIs with the same content are configured to be offset in the frequency domain or the time domain.

The frequency hopping method cannot be backward compatible for terminals supporting certain protocols, so if backward compatibility is required, the frequency hopping is realized by only introducing frequency hopping between type0-PDCCH scheduled PDSCH transmissions corresponding to PBCH repeatedly transmitted within 20 ms. The Type0-PDCCH scheduled PDSCH is generally used to carry transmission of SIB1 or Remaining Minimum System Information (RMSI).

Due to the conventional UE access, only one type0-PDCCH and corresponding PDSCH can be identified for PBCH within every 20 ms. Taking this PDSCH as a reference, the PDSCH scheduled by other type0-PDCCH is shifted in time-frequency domain, that is, frequency hopping, on the basis of this reference, and the time-domain shift ensures that the PDSCHs are shifted in time domain.

The above-mentioned hopping interval may be predefined or indicated by PBCH.

Further, the offset of the target PDSCH in the frequency domain is predefined by a protocol;

or

The offset of the target PDSCH in the frequency domain is related to a control channel resource set where a common search space of type0-PDCCH for transmitting the DCI is located;

or

The offset of the target PDSCH in the frequency domain is related to a transmission number index of the PBCH or SSB of the repeated transmission.

Referring to fig. 6, fig. 6 is a flowchart of a receiving method applied to a terminal according to an embodiment of the present invention, and as shown in fig. 6, the receiving method includes the following steps:

step 201, determining a detection start time slot of a type0-PDCCH common search space corresponding to the PBCH or SSB of the repeated transmission. The detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by the MIB in PBCH and transmission information of the PBCH or SSB which is transmitted repeatedly.

The predefined time parameter is a time value in time slots or absolute time duration, i.e. the predefined time parameter is a numerical value in time slots or absolute time duration (e.g. 5 ms).

Step 202, detecting PDCCH in type0-PDCCH common search space corresponding to the PBCH or SSB of the repeated transmission.

It should be understood that the repeated transmission of SSBs in embodiments of the present invention refers to multiple transmissions of SSBs having the same SSB index. Also, the repeated transmission of the PBCH refers to a plurality of repeated transmissions of the PBCH in SSBs having the same SSB index.

In the embodiment, the detection starting time slot of the type0-PDCCH common search space corresponding to the PBCH or SSB of the repeated transmission is determined; and detecting the PDCCH in a type0-PDCCH common search space corresponding to the PBCH or the SSB of the repeated transmission. Since the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in a PBCH and a predefined time parameter, or the detection start time slot of the type0-PDCCH common search space is related to information carried by an MIB in a PBCH and transmission information of the repeatedly transmitted PBCH or SSB, the detection start time slot of the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB is shifted in time in the time domain. Due to the fact that the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly have time offsets, the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly can be different, and therefore the terminal can carry out scheduling on the broadcast information based on the PDCCHs in the search spaces with certain time offsets.

This is explained in further detail below.

The following is further described with reference to the accompanying drawings. For example, to enhance PBCH coverage, 2 repeated PBCH transmissions within every 20ms are achieved using two half-frames of the same radio frame. The difference from the 10ms transmission period is that the 10ms periodic transmission is 10ms apart by two repeated transmissions within every 20ms, whereas the 2 PBCH transmissions within every 20ms are 5ms implemented using two half-frames of the same radio frame. Fig. 2 is a diagram illustrating a 10ms period, and fig. 3 is a diagram illustrating 2 repeated PBCH transmissions within 20ms using two half frames of the same radio frame.

In the transmission scheme shown in fig. 3, since PBCH transmission for repeated transmission only occurs in odd radio frames or even radio frames, the lowest bit of the SFN remains unchanged, although the HRF indication bit changes, since the HRF does not undergo the first layer scrambling, the UE performs blind detection by using a blind detection assumption similar to the 2 nd and 3 rd bits from the last of the SFN, so as to perform PBCH combining.

The time offset also means that, for the same SSB index i, the detection start time slot of the repeatedly transmitted SSB i or the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH corresponding to the SSB i is time-offset in the time domain.

a transmission number index of the PBCH or SSB of the repeated transmission.

In an embodiment of the present application, the detection start time slot n of the type0-PDCCH common search space corresponding to the PBCH or SSB of the repeated transmission₀As a function of at least one of the following parameters:

a transmission number index of the PBCH or SSB of the repeated transmission.

Specifically, the start time slot n is detected₀Specifically, it can be determined by the following expression:

or

Or

Or

Or

Or

Or

Or

N is₀SSB corresponding to PBCH of the repeated transmission_iOr repeatedly transmitted SSB_iCorresponding type0-PDCCH common search spaceThe detection start time slot sequence number between, i is SSB index, O is SSB_iDetecting a subframe interval between an initial time slot and an initial position of an even frame by a corresponding type0-PDCCH search space, wherein A is a value of the lowest bit of SFN, B is a value of a half frame indicating bit, S is the granularity of time, and mu is a subcarrier interval of CORESET # 0; said M is SSB_iThe corresponding type 0-the equivalent number of slots occupied by the PDCCH search space,

the number of time slots in one system frame in the unit of the sub-carrier interval of the SIB 1; and j is the transmission number of the PBCH or SSB of the repeated transmission.

The following are described below.

It is assumed that the offset value of type0-PDCCH corresponding to the PBCH of repeated transmission is shifted in units of S milliseconds (ms) or S time slots, i.e. S is used as granularity, and the adjacent offset is S milliseconds or S time slotsS slot, A represents the lowest order (1) of SFN^stA last significant bits of the system frame number), B represents a half frame index (half frame index), usually 0 or 1, where S (unit of ms) is taken as an example as follows:

with respect to the SSB index i,

assumed to be located in radio frame SFN_CIn if, if

with respect to the SSB index i,

assumed to be located in radio frame SFN_CIn if, if

Namely SFN_Cmod2＝1，I.e., type0-PDCCH, is located in odd radio frames.

With respect to the SSB index i,

Replacement of

If PBCH is transmitted repeatedly only 1 time within 20ms, with both transmissions in two fields of the same radio frame, the offset value is only related to the field indication.

With respect to the SSB index i,

Replacement of

As shown in fig. 4, which is a diagram of implementation effect, two PBCH repetitions are both located in odd frames, but located in different half frames, and then the type0-PDCCH detection start slots corresponding to the two PBCH repetitions are offset by 5 ms.

For example: with respect to the SSB index i,

at radio frame SFN_CIn if, if

Then SFN_Cmod2 is 0, i.e., if it is located in an even radio frame

Replacement of

Besides the detection position of type0-PDCCH indicated by PBCH, the detection positions of different symbols of some same time slots or other time slots are introduced, and the detection positions of type0-PDCCH corresponding to part of the repeatedly transmitted PBCH are the positions indicated by these non-PBCH, as shown in figure 5.

In one embodiment of the present application, the DCI content carried by all PDCCHs or part of PDCCHs transmitted in the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB is the same.

When DCI requiring all 8 or partial type0-PDCCH transmissions within 160ms is the same, if the resource allocation regions are identical, it will result in that the frequency domain resources of the scheduled PDSCH are identical at 8 transmissions, and a frequency diversity gain cannot be obtained. Therefore, in the specific embodiment of the present invention, frequency hopping is introduced between 8 transmissions: predefining a frequency hopping interval N as an interval of RBs of the frequency domain starting positions transmitted twice continuously; n may be a parameter related to the number of repeated transmissions, for example, B is the bandwidth of initial BWP of transmission type0, where N is B/L and L is the number of repeated transmissions.

That is, in one embodiment of the present application, the target PDSCHs scheduled by the DCI having the same content are configured to be offset in a frequency domain or a time domain.

The above-mentioned hopping interval may be predefined or indicated by PBCH.

In one embodiment of the present application, the offset of the target PDSCH in the frequency domain is predefined by a protocol;

or

Referring to fig. 7, fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention, and as shown in fig. 7, the network device 300 includes:

a transmitting module 301 for transmitting a PDCCH in a type0-PDCCH common search space corresponding to a repeatedly transmitted PBCH or a repeatedly transmitted SSB; the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by the MIB in PBCH and transmission information of the PBCH or SSB which is transmitted repeatedly.

Further, the predefined time parameter is a time value in a time slot or an absolute time duration.

Further, the PBCH or the SSB for repeated transmission are both located in even radio frames or both located in odd radio frames, and the number of transmissions in the same radio frame is greater than 1.

Further, the SSBs corresponding to the PBCH with repeated transmission or the SSBs with repeated transmission have the same SSB index.

Further, the transmission information includes at least one of the following information:

a transmission number index of the PBCH or SSB of the repeated transmission.

Further, the detection start time slot n of type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB₀As a function of at least one of the following parameters:

a transmission number index of the PBCH or SSB of the repeated transmission.

Further, the detection start time slot n of type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB₀Comprises the following steps:

or

Or

Or

Or

Or

Or

Or

N is₀The detection start time slot sequence number of the SSBi corresponding to the repeatedly transmitted PBCH or the type0-PDCCH common search space corresponding to the repeatedly transmitted SSBi, i is an SSB index, O is a subframe interval between the detection start time slot of the type0-PDCCH search space corresponding to the SSBi and the start position of an even frame, A is the value of the lowest bit of the SFN, and B is the value of a half-frame indication bitThe S is the granularity of the time, and the mu is the subcarrier interval of CORESET # 0; the M is the equivalent time slot number occupied by the type0-PDCCH search space corresponding to the SSBi,

Further, the DCI content of all PDCCHs or part of PDCCH bearers transmitted in the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB is the same.

Further, the target PDSCH scheduled by the DCI having the same content is configured to be offset in a frequency domain or a time domain.

or

The network device 300 can implement each process implemented by the network device in the method embodiment shown in fig. 1, and is not described here again to avoid repetition.

The network device 300 of the embodiment of the present invention transmits the PDCCH in the type0-PDCCH common search space corresponding to the PBCH or SSB that is repeatedly transmitted; since the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by MIB in PBCH and transmission information of the repeatedly transmitted PBCH or SSB, the detection start time slot of the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB has time offset in a time domain. Due to the fact that the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly have time offsets, the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly can be different, and the UE can conduct scheduling of broadcast information on the basis of the PDCCHs in the search spaces with certain time offsets.

Referring to fig. 8, an embodiment of the present invention further provides a network device, which includes a bus 1001, a transceiver 1002, an antenna 1003, a bus interface 1004, a processor 1005, and a memory 1006.

The transceiver 1002, configured to transmit a PDCCH in a type0-PDCCH common search space corresponding to a repeatedly transmitted PBCH or a repeatedly transmitted SSB; the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by the MIB in PBCH and transmission information of the PBCH or SSB which is transmitted repeatedly.

a transmission number index of the PBCH or SSB of the repeated transmission.

Further, there is a time offset for the detection start time slot of the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB, including,

a detection start time slot n of a type0-PDCCH common search space corresponding to the PBCH or SSB of the repeated transmission₀As a function of at least one of the following parameters:

a transmission number index of the PBCH or SSB of the repeated transmission.

or

Or

Or

Or

Or

Or

Or

N is₀The detection start time slot number of the SSBi corresponding to the repeatedly transmitted PBCH or the type0-PDCCH common search space corresponding to the repeatedly transmitted SSBi is determined, i is an SSB index, O is a subframe interval between the detection start time slot of the type0-PDCCH search space corresponding to the SSBi and the start position of an even frame, A is the value of the lowest bit of the SFN, B is the value of a half-frame indication bit, S is the granularity of the time, and mu is the subcarrier interval of CORESET # 0; the M is the equivalent time slot number occupied by the type0-PDCCH search space corresponding to the SSBi,

or

The network device can implement each process implemented by the network device in the method embodiment shown in fig. 1, and is not described here again to avoid repetition.

The network equipment of the embodiment of the invention transmits the PDCCH in the type0-PDCCH common search space corresponding to the PBCH or SSB which is transmitted repeatedly; since the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by MIB in PBCH and transmission information of the repeatedly transmitted PBCH or SSB, the detection start time slot of the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB has time offset in a time domain. Due to the fact that the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly have time offsets, the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly can be different, and the UE can conduct scheduling of broadcast information on the basis of the PDCCHs in the search spaces with certain time offsets.

In fig. 8, a bus architecture (represented by bus 1001), bus 1001 may include any number of interconnected buses and bridges, and bus 1001 links together various circuits including one or more processors, represented by processor 1005, and memory, represented by memory 1006. The bus 1001 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. A bus interface 1004 provides an interface between the bus 1001 and the transceiver 1002. The transceiver 1002 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. Data processed by the processor 1005 is transmitted over a wireless medium via the antenna 1003, and further, the antenna 1003 receives the data and transmits the data to the processor 1005.

Processor 1005 is responsible for managing bus 1001 and general processing, and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 1006 may be used for storing data used by processor 1005 in performing operations.

Alternatively, the processor 1005 may be a CPU, ASIC, FPGA or CPLD.

Preferably, an embodiment of the present invention further provides a network device, which includes a processor 1005, a memory 1006, and a computer program stored in the memory 1006 and capable of running on the processor 1005, where the computer program, when executed by the processor 1005, implements the processes in the transmission method embodiment shown in fig. 1, and can achieve the same technical effects, and details are not described here to avoid repetition.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention, as shown in fig. 9, a terminal 400 includes a processing module 401 and a receiving module 402;

the processing module 401 is configured to determine a detection start time slot of a type0-PDCCH common search space corresponding to a PBCH or an SSB for repeated transmission;

The receiving module 402 is configured to detect the PDCCH in a type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB.

a transmission number index of the PBCH or SSB of the repeated transmission.

Further, in the above-mentioned case,

or

Or

Or

Or

Or

Or

Or

N is₀SSB corresponding to PBCH of the repeated transmission_iOr repeatedly transmitted SSB_iThe detection starting time slot sequence number of the corresponding type0-PDCCH common search space, wherein i is an SSB index, and O is an SSB_iDetecting a subframe interval between an initial time slot and an initial position of an even frame by a corresponding type0-PDCCH search space, wherein A is a value of the lowest bit of SFN, B is a value of a half frame indicating bit, S is the granularity of time, and mu is a subcarrier interval of CORESET # 0; said M is SSB_iThe corresponding type 0-the equivalent number of slots occupied by the PDCCH search space,

or

The offset of the target PDSCH in the frequency domain is related to the index of the transmission times of the PBCH or SSB of the repeated transmission

The terminal 400 can implement each process implemented by the terminal in the method embodiment shown in fig. 6, and is not described herein again to avoid repetition.

The terminal 400 of the embodiment of the present invention determines the detection start time slot of the type0-PDCCH common search space corresponding to the PBCH or SSB which is repeatedly transmitted; and detecting the PDCCH in a type0-PDCCH common search space corresponding to the PBCH or the SSB of the repeated transmission. Since the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by MIB in PBCH and transmission information of the repeatedly transmitted PBCH or SSB, the detection start time slot of the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB has time offset in a time domain. Due to the fact that the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly have time offsets, the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly can be different, and therefore the terminal can carry out scheduling on the broadcast information based on the PDCCHs in the search spaces with certain time offsets.

Fig. 10 is a schematic structural diagram of another terminal for implementing various embodiments of the present invention, where the terminal 1100 includes, but is not limited to: a transceiver unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, a processor 1110, a power supply 1111, and the like. Those skilled in the art will appreciate that the terminal configuration shown in fig. 6 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 1110 is configured to determine a detection start time slot of a type0-PDCCH common search space corresponding to a PBCH or an SSB for repeated transmission; the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by the MIB in PBCH and transmission information of the PBCH or SSB which is transmitted repeatedly.

A transceiving unit 1101, configured to detect a PDCCH in a type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB.

a transmission number index of the PBCH or SSB of the repeated transmission.

Further, in the above-mentioned case,

or

Or

Or

Or

Or

Or

Or

or

The terminal 1100 is capable of implementing each process implemented by the terminal in the method embodiment shown in fig. 6, and is not described here again to avoid repetition.

The terminal 1100 of the embodiment of the present invention determines the detection start time slot of the type0-PDCCH common search space corresponding to the PBCH or SSB that is repeatedly transmitted; and detecting the PDCCH in a type0-PDCCH common search space corresponding to the PBCH or the SSB of the repeated transmission. Since the detection start time slot of the type0-PDCCH common search space is related to information carried by a master information block MIB in PBCH and predefined time parameters, or the detection start time slot of the type0-PDCCH common search space is related to information carried by MIB in PBCH and transmission information of the repeatedly transmitted PBCH or SSB, the detection start time slot of the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB has time offset in a time domain. Due to the fact that the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly have time offsets, the detection starting time slots of the type0-PDCCH common search spaces corresponding to the PBCH or the SSB which are transmitted repeatedly can be different, and therefore the terminal can carry out scheduling on the broadcast information based on the PDCCHs in the search spaces with certain time offsets.

It should be understood that, in the embodiment of the present invention, the transceiver unit 1101 may be configured to receive and transmit signals during a message transmission or call process, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 1110; in addition, the uplink data is transmitted to the base station. Generally, the transceiver unit 1101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Furthermore, the transceiving unit 1101 may also communicate with a network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband internet access via the network module 1102, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 1103 may convert audio data received by the transceiving unit 1101 or the network module 1102 or stored in the memory 1109 into an audio signal and output as sound. Also, the audio output unit 1103 may also provide audio output related to a specific function performed by the terminal 1100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1104 is used to receive audio or video signals. The input Unit 1104 may include a Graphics Processing Unit (GPU) 11041 and a microphone 11042, and the Graphics processor 11041 processes image data of still pictures or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1106. The image frames processed by the graphic processor 11041 may be stored in the memory 1109 (or other storage medium) or transmitted via the transceiving unit 1101 or the network module 1102. The microphone 11042 may receive sound and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the transceiving unit 1101 in case of the phone call mode.

Terminal 1100 can also include at least one sensor 1105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 11061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 11061 and/or a backlight when the terminal 1100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 1105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., and will not be described in detail herein.

The display unit 1106 is used to display information input by a user or information provided to the user. The Display unit 1106 may include a Display panel 11061, and the Display panel 11061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 1107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 1107 includes a touch panel 11071 and other input devices 11072. The touch panel 11071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 11071 (e.g., operations by a user on or near the touch panel 11071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 11071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 1110, and receives and executes commands sent from the processor 1110. In addition, the touch panel 11071 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 1107 may include other input devices 11072 in addition to the touch panel 11071. In particular, the other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 11071 can be overlaid on the display panel 11061, and when the touch panel 11071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1110 to determine the type of the touch event, and then the processor 1110 provides a corresponding visual output on the display panel 11061 according to the type of the touch event. Although the touch panel 11071 and the display panel 11061 are shown in fig. 6 as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 11071 and the display panel 11061 may be integrated to implement the input and output functions of the terminal, and is not limited herein.

The interface unit 1108 is an interface for connecting an external device to the terminal 1100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within terminal 1100 or may be used to transmit data between terminal 1100 and external devices.

The memory 1109 may be used to store software programs as well as various data. The memory 1109 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory 1109 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1110 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 1109 and calling data stored in the memory 1109, thereby integrally monitoring the terminal. Processor 1110 may include one or more processing units; preferably, the processor 1110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1110.

The terminal 1100 can also include a power supply 1111 (e.g., a battery) for providing power to various components, and preferably, the power supply 1111 can be logically connected to the processor 1110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

In addition, the terminal 1100 includes some functional modules that are not shown, and thus, are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, which includes a processor 1110, a memory 1109, and a computer program that is stored in the memory 1109 and can be executed on the processor 1110, where the computer program, when executed by the processor 1110, implements each process of the receiving method embodiment shown in fig. 6, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the sending method embodiment shown in fig. 1, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the receiving method embodiment shown in fig. 6, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The computer readable storage medium is, for example, ROM, RAM, magnetic disk or optical disk.

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

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

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

Claims

1. A transmission method for a network device, the transmission method comprising:

2. The transmission method according to claim 1, wherein the predefined time parameter is a time value in time slots or absolute time duration.

3. The transmission method of claim 1,

the PBCH or the SSB of the repeated transmission are both positioned in even radio frames or odd radio frames, and the transmission times in the same radio frame are more than 1.

4. The transmitting method of claim 1, wherein the SSBs corresponding to the PBCH for the repeated transmission or the SSBs for the repeated transmission have the same SSB index.

5. The transmission method according to claim 1, wherein the transmission information comprises at least one of the following information:

a transmission number index of the PBCH or SSB of the repeated transmission.

6. The transmission method according to any one of claims 1 to 5,

a transmission number index of the PBCH or SSB of the repeated transmission.

7. A transmission method according to claim 1, 2 or 3, characterized in that:

a detection start time slot n of a type0-PDCCH common search space corresponding to the PBCH or SSB of the repeated transmission₀Comprises the following steps:

or

Or

Or

Or

Or

Or

Or

N is₀The detection start time slot number of the SSBi corresponding to the repeatedly transmitted PBCH or the type0-PDCCH common search space corresponding to the repeatedly transmitted SSBi is determined, i is an SSB index, O is a subframe interval between the detection start time slot of the type0-PDCCH search space corresponding to the SSBi and the start position of an even frame, A is the value of the lowest bit of a system frame number SFN, B is a value of a half frame indication bit, S is the granularity of time, and mu is the subcarrier interval of CORESET # 0; the M is the equivalent time slot number occupied by the type0-PDCCH search space corresponding to the SSBi,

the number of time slots in one system frame of subcarrier spacing of a control resource set based on a bearer type 0-PDCCH; j is the transmission number of the PBCH of the repeated transmission or the SSB of the repeated transmission.

8. The sending method of claim 1, wherein the content of the Downlink Control Information (DCI) carried by all or part of the PDCCH transmitted in the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB is the same.

9. The transmission method of claim 8, wherein the target PDSCH scheduled by the DCI with the same content is configured to have an offset in frequency domain or time domain.

10. The transmission method according to claim 9, characterized in that:

the offset of the target PDSCH in the frequency domain is predefined by the protocol;

or

11. A receiving method for a terminal, the receiving method comprising:

12. The receiving method according to claim 11, characterized in that the predefined time parameter is a time value in time slots or absolute time duration.

13. The receiving method according to claim 11,

14. The receiving method of claim 11, wherein the SSBs corresponding to the PBCH of the repeated transmission or the SSBs of the repeated transmission have the same SSB index.

15. The receiving method according to claim 11, wherein the transmission information comprises at least one of the following information:

a transmission number index of the PBCH or SSB of the repeated transmission.

16. The receiving method according to any of claims 11-15, characterized in that the detection start slot n of type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB₀As a function of at least one of the following parameters:

a transmission number index of the PBCH or SSB of the repeated transmission.

17. A receiving method according to claim 11 or 12 or 13, characterized in that: detection start time slot n of type0-PDCCH common search space corresponding to PBCH or SSB of repeated transmission₀Comprises the following steps:

or

Or

Or

Or

Or

Or

Or

N is₀SSB corresponding to PBCH of the repeated transmission_iOr repeatedly transmitted SSB_iThe detection starting time slot sequence number of the corresponding type0-PDCCH common search space, wherein i is an SSB index, and O is an SSB_iDetecting a subframe interval between an initial time slot and an initial position of an even frame by a corresponding type0-PDCCH search space, wherein A is a value of the lowest bit of a system frame number SFN, B is a value of a half frame indication bit, S is the granularity of time, and mu is a subcarrier interval of CORESET # 0; said M is SSB_iThe corresponding type 0-the equivalent number of slots occupied by the PDCCH search space,

the number of time slots in one system frame in the unit of the sub-carrier interval of the SIB 1; j is the repeat transmissionTransmission number of the transmitted PBCH or the repeatedly transmitted SSB.

18. The receiving method according to claim 11, wherein the content of the downlink control information DCI carried by all PDCCHs or part of PDCCHs transmitted in the type0-PDCCH common search space corresponding to the repeatedly transmitted PBCH or the repeatedly transmitted SSB is the same.

19. The receiving method according to claim 18, wherein the target physical downlink shared channel PDSCH scheduled by the DCI with the same content is configured to have an offset in frequency domain or time domain.

20. A receiving method according to claim 19, characterized in that:

or

21. A network device comprising a processor and a transceiver:

22. A terminal comprising a processor and a transceiver;

23. A network device, comprising:

24. A terminal, comprising:

25. A network device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the transmission method according to any one of claims 1 to 10.

26. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps in the receiving method according to any one of claims 11 to 20.

27. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, realizes the steps in the transmission method according to one of the claims 1 to 10, or which computer program, when being executed by a processor, realizes the steps in the transmission method according to one of the claims 11 to 20.