CN109150462A

CN109150462A - A kind of exclusive demodulated reference signal transmissions method and device of PBCH

Info

Publication number: CN109150462A
Application number: CN201710459736.9A
Authority: CN
Inventors: 李铁; 郑方政
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2019-01-04
Anticipated expiration: 2037-06-16
Also published as: WO2018228181A1; CN109150462B

Abstract

This application discloses a kind of exclusive demodulated reference signal transmissions method and devices of PBCH.In the application, the network equipment generates the exclusive demodulated reference signal of PBCH for sending on PBCH；The network equipment sends the exclusive demodulated reference signal of the PBCH on PBCH, wherein the exclusive demodulated reference signal of the PBCH of different community occupies different frequency domain resources and/or corresponding different signal sequence in identical time domain.The PBCH interference of minizone can be reduced using the application.

Description

A kind of exclusive demodulated reference signal transmissions method and device of PBCH

Technical field

The present invention relates to wireless communication technology field more particularly to a kind of exclusive demodulated reference signal transmissions method of PBCH and Device.

Background technique

Physical Broadcast Channel (Physical Broadcast Channel, PBCH) carries broadcast channel (Broadcast Channel, BCH), for transmitting the important parameter in cell, including system bandwidth, System Frame Number, physical mixed autonomous retransmission Indicate channel (Physical Hybrid ARQ Indicator Channel, PHICH) information and some necessary system letters Breath.Wherein, cell information is broadcasted by PBCH, for example Master Information Block (Master Information Block, MIB) passes through PBCH broadcast.

In fourth generation mobile communication technology (the 4th Generation mobile communication Technology, 4G) in long term evolution (Long Term Evolution, LTE) system, PBCH utilizes cell specific reference letter Number (Cell-specific reference signals, CRS) carries out channel estimation as demodulated reference signal.

It is moved in third generation partner program (3rd Generation Partnership Project, 3GPP) the 5th generation It is dynamic to communicate next-generation radio technology (the 5th Generation mobile communication technology New Radio, 5G NR) research in, CRS has been not present, it is therefore desirable to new reference signal transmission scheme.

Summary of the invention

The embodiment of the present application provides a kind of exclusive demodulated reference signal transmissions method and device of PBCH.

In a first aspect, providing a kind of exclusive demodulated reference signal transmissions method of PBCH, comprising:

The network equipment generates the exclusive demodulated reference signal of PBCH for sending on PBCH；The network equipment is in PBCH It is upper to send the exclusive demodulated reference signal of PBCH, wherein the exclusive demodulated reference signal of the PBCH of different community in identical time domain Occupy different frequency domain resources and/or corresponding different signal sequence.

Optionally, in identical time domain the exclusive demodulated reference signal of PBCH of different community occupy different frequency domain resource and/ Or corresponding different signal sequence, comprising: the exclusive demodulated reference signal of the PBCH of different community at least has one of in the following areas Institute is different:

The frequency domain position that the exclusive demodulated reference signal of PBCH occupies；

For generating the root sequence of the exclusive demodulated reference signal of PBCH；

Used cyclic shift when demodulated reference signal exclusive based on root sequence generation PBCH.

Optionally, network equipment n times within a PBCH information update period send the exclusive demodulation reference letter of PBCH Number, N is the integer more than or equal to 1, wherein the exclusive demodulated reference signal of PBCH that n times are sent in same cell is at least following One of aspect is different:

Optionally, the exclusive demodulated reference signal of PBCH of different community occupies different frequency domain positions, base in identical time domain In identical sequence and use identical cyclic shift；Within a PBCH information update period of same cell, n times are sent The exclusive demodulated reference signal of PBCH based on identical sequence but use different cyclic shifts, or based on different root sequences It arranges but uses identical cyclic shift；Alternatively,

The exclusive demodulated reference signal of the PBCH of different community occupies identical frequency domain position, based on identical in identical time domain Root sequence but the different cyclic shift of use；Within a PBCH information update period of same cell, the PBCH that n times are sent is special Belong to demodulated reference signal based on identical sequence but use different cyclic shifts, or based on different root sequences but use Identical cyclic shift；Alternatively,

The exclusive demodulated reference signal of the PBCH of different community occupies different frequency domain positions, based on different in identical time domain Root sequence but the identical cyclic shift of use；Within a PBCH information update period of same cell, the PBCH that n times are sent is special Belong to demodulated reference signal based on identical sequence but use different cyclic shifts, or based on different root sequences but use Identical cyclic shift；Alternatively,

The exclusive demodulated reference signal of the PBCH of different community occupies different frequency domain positions, based on identical in identical time domain Root sequence but the different cyclic shift of use；Within a PBCH information update period of same cell, the PBCH that n times are sent is special Belong to demodulated reference signal based on identical sequence but use different cyclic shifts, or based on different root sequences but use Identical cyclic shift.

Optionally, the exclusive demodulation reference letter of the PBCH that n times are sent within a PBCH information update period of same cell In number, the exclusive demodulated reference signal of the PBCH sent every time uses a corresponding wave beam, the exclusive solution of PBCH that the n times are sent Reference signal and N number of beam index is adjusted to correspond；Alternatively,

In the exclusive demodulated reference signal of PBCH that n times are sent within a PBCH information update period of same cell, often The exclusive demodulated reference signal of the PBCH of secondary transmission uses a corresponding radio frames, the exclusive demodulation ginseng of the PBCH that the n times are sent The index for examining signal and N number of radio frames corresponds.

Optionally, the corresponding sequence of the exclusive demodulated reference signal of the PBCH is ZC sequence.

Second aspect provides a kind of exclusive demodulated reference signal transmissions method of PBCH, comprising:

Terminal receives the exclusive demodulated reference signal of PBCH, wherein the exclusive demodulation ginseng of the PBCH of different community in identical time domain It examines signal and occupies different frequency domain resources and/or corresponding different signal sequence；

The terminal carries out channel estimation according to the exclusive demodulated reference signal of the PBCH.

Optionally, the exclusive demodulation reference letter of the PBCH that n times are sent within a PBCH information update period of same cell It is number at least one of in the following areas different:

The third aspect provides a kind of network equipment, comprising:

Generation module, for generating the exclusive demodulated reference signal of PBCH for sending on PBCH；

Sending module, for sending the exclusive demodulated reference signal of the PBCH on PBCH, wherein different in identical time domain The exclusive demodulated reference signal of the PBCH of cell occupies different frequency domain resources and/or corresponding different signal sequence.

Optionally, the exclusive demodulated reference signal of the PBCH of different community is at least one of in the following areas different:

Optionally, the sending module is specifically used for: n times send the exclusive solution of PBCH within a PBCH information update period Reference signal is adjusted, N is the integer more than or equal to 1, wherein the exclusive demodulated reference signal of PBCH that n times are sent in same cell is extremely It is few one of in the following areas different:

Fourth aspect provides a kind of terminal, comprising:

Receiving module, for receiving the exclusive demodulated reference signal of PBCH, wherein the PBCH of different community is special in identical time domain Belong to demodulated reference signal and occupies different frequency domain resources and/or corresponding different signal sequence；

Channel estimation module, for carrying out channel estimation according to the exclusive demodulated reference signal of the PBCH.

5th aspect, provides a kind of communication device, comprising: processor, memory, transceiver and bus interface；It is described Processor executes the method that any possible scheme provides in above-mentioned first aspect for reading the program in memory.

6th aspect, provides a kind of communication device, comprising: processor, memory, transceiver and bus interface；It is described Processor executes the method that any possible scheme provides in above-mentioned second aspect for reading the program in memory.

7th aspect, provides a kind of computer storage medium, the computer-readable recording medium storage has computer can It executes instruction, the computer executable instructions are for making the computer execute any possible scheme in above-mentioned first aspect The method.

Eighth aspect, provides a kind of computer storage medium, and the computer-readable recording medium storage has computer can It executes instruction, the computer executable instructions are for making the computer execute any possible scheme in above-mentioned second aspect The method.

In above-described embodiment, the network equipment generates the reference signal for sending on PBCH, and institute is sent on PBCH State reference signal.Wherein, the reference signal of different community occupies different frequency domain resources and/or corresponds to different in identical time domain Signal sequence so as to realize the transmission of reference signals on PBCH, and can further decrease the PBCH interference of minizone.

Detailed description of the invention

Fig. 1 is the network architecture schematic diagram that the embodiment of the present application is applicable in；

Fig. 2A, Fig. 2 B are the exclusive modulation reference signals resource schematic diagram of PBCH that scheme 1 provides in the embodiment of the present application；

Fig. 2 C is the exclusive modulation reference signals resource schematic diagram of PBCH that the embodiment of the present application scheme 2 provides；

Fig. 3 A, Fig. 3 B are the exclusive modulation reference signals resource schematic diagram of PBCH that scheme 3 provides in the embodiment of the present application；

Fig. 3 C is the exclusive modulation reference signals resource schematic diagram of PBCH that the embodiment of the present application scheme 4 provides；

Fig. 4 A, Fig. 4 B are the exclusive modulation reference signals resource schematic diagram of PBCH that scheme 5 provides in the embodiment of the present application；

Fig. 4 C is the exclusive modulation reference signals resource schematic diagram of PBCH that the embodiment of the present application scheme 6 provides；

Fig. 5 A, Fig. 5 B are the exclusive modulation reference signals resource schematic diagram of PBCH that scheme 7 provides in the embodiment of the present application；

Fig. 5 C is the exclusive modulation reference signals resource schematic diagram of PBCH that the embodiment of the present application scheme 8 provides；

Fig. 6 is reference signal transmission flow diagram provided by the embodiments of the present application；

Fig. 7 is the structural schematic diagram of the network equipment provided by the embodiments of the present application；

Fig. 8 is the structural schematic diagram of terminal provided by the embodiments of the present application；

Fig. 9 is the structural schematic diagram for the network equipment that the application other embodiment provides；

Figure 10 is the structural schematic diagram for the terminal that the application other embodiment provides.

Specific embodiment

The embodiment of the present application is directed to the reference signal transmitted on PBCH, proposes a kind of transmission method and based on this method Device, described device includes the network equipment and terminal.The network equipment sends the reference signal designed in the embodiment of the present application, eventually End can realize PBCH channel estimation using this reference signal.In the embodiment of the present application, by the design to reference signal, so that The exclusive demodulated reference signal of PBCH of different community (such as neighboring community) is distinguished in identical time domain, so as to solve difference Minizone PBCH interference problem can be improved PBCH detection demodulation reliability, can reduce system signaling expense, and then system can be improved Efficiency of transmission.Wherein, method and apparatus are the principle phases solved the problems, such as due to method and device based on the same inventive concept Seemingly, therefore the implementation of apparatus and method can be with cross-reference, and overlaps will not be repeated.

The embodiment of the present application is applicable to 3GPP 5G NR system or its evolution system.

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description.

Fig. 1 schematically illustrates a kind of possible system architecture of the embodiment of the present application.As shown in Figure 1, the system tray Structure may include the access node 10 accessed in net and core net (core network, CN) 20 and terminal 30.Terminal 30 passes through Wireless connection is communicated with access node 10, only shows an access node and a terminal for clarity, in figure.Access Node 10 and core net (core network, CN) are connected, the equipment in core net can be divided into control plane (Control Plane, CP) equipment 201 and user face (User Plane, UP) equipment 202, control plane equipment are referred to as control plane network element, user Face equipment is referred to as user's veil member.

It should be noted that control plane equipment and user face equipment are only a names, name itself is to equipment not structure At restriction.For example, the control plane equipment is also possible to be replaced by " control face entity " or other names.Moreover, the control plane It includes other than control plane function that equipment, which can also correspond to one, and there are also the entities of other function.User face equipment is also possible to " user entity " or other names are replaced by, moreover, it includes in addition to user face that the user face equipment, which can also correspond to one, Outside function, there are also the entities of other function.It is described collectively, is repeated no more below herein.

Terminal, also referred to as user equipment (user equipment, UE), are moved at mobile station (mobile station, MS) Dynamic terminal (mobile terminal, MT) etc., is a kind of equipment for providing a user voice and/or data connectivity, for example, Handheld device, mobile unit with wireless connecting function etc..Currently, the citing of some terminals are as follows: mobile phone (mobile Phone), tablet computer, laptop, palm PC, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, the wireless terminal in Industry Control (industrial control), the nothing in unmanned (self driving) Line terminal, the wireless terminal in remote operation (remote medical surgery), in smart grid (smart grid) Wireless terminal, the wireless terminal in transportation safety (transportation safety), in smart city (smart city) Wireless terminal etc. in wireless terminal, wisdom family (smart home).

The equipment that access node refers to core network access, such as can be base station.Wherein, when access node is base station When, base station is specifically including but not limited to: evolved node B (evolved Node B, eNB), radio network controller (radio Network controller, RNC), node B (Node B, NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver Station, BTS), Home eNodeB are (for example, Home evolved NodeB or Home Node B, HNB), Base Band Unit (Base Band Unit, BBU), base station of newly eating dishes without rice or wine (g NodeB, GNB), transfer point (Transmitting and receiving point, TRP), launch point (Transmitting point, TP), mobile switching centre etc..

The network architecture of the embodiment of the present application description is the technical solution in order to more clearly illustrate the embodiment of the present application, The restriction to technical solution provided by the embodiments of the present application is not constituted, those of ordinary skill in the art are it is found that with network rack The differentiation of structure, technical solution provided by the embodiments of the present application are equally applicable for similar technical problem.

In the embodiment of the present application, noun " network " and " system " are often used alternatingly, but those skilled in the art can be with Understand its meaning.

Term "and/or" in the embodiment of the present application, only a kind of incidence relation for describing affiliated partner, expression can deposit In three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B. In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".

Below in conjunction with attached drawing, scheme provided by the embodiment of the present application is described in more detail.

In the embodiment of the present application, the reference signal for transmitting on PBCH may include exclusive demodulated reference signal, or Person includes other reference signals, the embodiment of the present application to this with no restriction.Following embodiment on PBCH to transmit exclusive demodulation It is described for reference signal, which can also be expressed as the exclusive demodulated reference signal of PBCH.

In the embodiment of the present application, the exclusive modulation reference signals of PBCH that the network equipment is sent can be using particular sequence as base Sequence (i.e. basic sequence) is simultaneously generated by cyclic shift.For example, the network equipment can be using the first particular sequence as basic sequence The sequence for generating the exclusive modulation reference signals of PBCH of cell 1, needs to generate using the second particular sequence as base the PBCH of cell 2 The sequence of exclusive modulation reference signals；For another example, the network equipment can be using the first particular sequence as basic sequence, and to the motif Column carry out first method cyclic shift, obtain the sequence of the exclusive demodulated reference signal of PBCH of cell 1, carry out the to the basic sequence Two mode cyclic shifts obtain the sequence of the exclusive demodulated reference signal of PBCH of cell 2.Wherein, the first particular sequence and second Particular sequence is not identical, first method cyclic shift and second method cyclic shift in direction of displacement and/or shift amount not Identical, for example, first method cyclic shift, which refers to, moves to left one, second method cyclic shift mode, which refers to, moves to left two, then compares Such as, first method cyclic shift, which refers to, moves to left one, and second method cyclic shift, which refers to, moves to right one.

Wherein, for generating the particular sequence of the exclusive demodulated reference signal sequence of PBCH, can select has well from phase Guan Xing, lower cross correlation and lower peak value average power ratio (Peak to Average Power Ratio, PAPR) Sequence, for example the ZC sequence with above-mentioned property can be selected.ZC sequence can be generated by basic sequence by cyclic shift, can also benefit The characteristic of ZC sequence is remained as with the discrete Fourier transform (Discrete Fourier Transform, DFT) of ZC sequence, first By ZC sequence pass through DFT transform, then carry out inverse fast Fourier transform (Inverse Fast Fourier Transform, IFFT it) generates.Certainly, it is also possible to other kinds of sequence for generating the particular sequence of the exclusive demodulated reference signal sequence of PBCH Column or the sequence otherwise generated, the embodiment of the present application are without limitation.

In the embodiment of the present application, the sequence of the exclusive demodulated reference signal of PBCH is ZC sequence.A kind of ZC sequence is shown below The expression formula of column:

Wherein,For demodulated reference signal length needed for PBCH, q is the root of basic sequence.

In the embodiment of the present application, in order to carry out the exclusive demodulated reference signal of PBCH of different community (such as neighboring community) It distinguishes, to reduce the interference of different community PBCH, in the embodiment of the present application, the exclusive demodulation of the PBCH of different community in identical time domain Reference signal occupies different frequency domain resources, perhaps corresponding different signal sequence or occupy different frequency domain resources and Corresponding different signal sequence.

Specifically, the exclusive demodulated reference signal of the PBCH of different community at least has one of in the following areas in identical time domain Institute is different:

The frequency domain position that the exclusive demodulated reference signal of-PBCH occupies is different.For example, cell 1 and cell 2 are neighboring community, Physical Resource Block that the exclusive demodulated reference signal of the PBCH of cell 1 occupies on frequency domain (Physical Resource Block, PRB), different from the PRB that the exclusive demodulated reference signal of the PBCH of cell 2 occupies on frequency domain.Due to cell 1 and cell 2 The exclusive demodulated reference signal of PBCH occupies different frequency domain resources, therefore can reduce cell 1 and cell 2 PBCH interference.It can Selection of land, the frequency domain position that the exclusive demodulated reference signal of the PBCH of a cell occupies can make an appointment.

Root sequence for generating the exclusive demodulated reference signal of PBCH is different.For example, cell 1 and cell 2 are adjacent small Area, the exclusive demodulated reference signal of the PBCH of cell 1 are generated using the first ZC sequence as root sequence, the exclusive demodulation of the PBCH of cell 2 Reference signal is generated using the 2nd ZC sequence for being different from the first ZC sequence as root sequence.Due to the exclusive demodulation of the PBCH of cell 1 Reference signal sequence is different from the exclusive demodulated reference signal sequence of the PBCH of cell 2, therefore can reduce cell 1 and cell 2 PBCH interference.Optionally, the root sequence of the exclusive demodulated reference signal of the PBCH of a cell can make an appointment.

Used cyclic shift is different when demodulated reference signal exclusive based on root sequence generation PBCH.For example, cell 1 It is neighboring community with cell 2, the exclusive demodulated reference signal of the PBCH of cell 1 using some ZC sequence as root sequence and moves to right it One generation, the exclusive demodulated reference signal of the PBCH of cell 2 is using the ZC sequence as root sequence and a generation is moved to left to it.By It is different from the exclusive demodulated reference signal sequence of the PBCH of cell 2 in the exclusive demodulated reference signal sequence of the PBCH of cell 1, therefore can Reduce the PBCH interference of cell 1 and cell 2.Optionally, circulation used in the exclusive demodulated reference signal of the PBCH of a cell Displacement can make an appointment.

The system information sent on PBCH can be updated according to setting time interval, which is known as PBCH The information update period.Within a PBCH information update period, PBCH information can repeat intervally to send repeatedly according to setting time. For example, in a 4 g system, the update cycle of PBCH is 40ms, within the 40ms period, a PBCH is sent every 10ms, and one The PBCH information (system information sent by PBCH, such as MIB) sent in a 40ms period is identical, but by different superfluous Remaining version (Redundancy Version, RV) is distinguished.

Optionally, the PBCH in order to be sent to same cell in different time intervals within a PBCH information update period Signal distinguishes, and in the embodiment of the present application, the same cell PBCH that n times are sent within a PBCH information update period is exclusive Demodulated reference signal is at least different in following one:

The frequency domain position that the exclusive demodulated reference signal of-PBCH occupies is different.For example, a PBCH information update period Interior, the PRB that the adjacent exclusive demodulated reference signal of PBCH sent twice occupies on frequency domain is different.It is sent due to not homogeneous The exclusive demodulated reference signal of PBCH occupies different frequency domain resources, therefore can be to the exclusive solution of PBCH or PBCH not sent herewith Reference signal is adjusted to distinguish.Optionally, the frequency domain position that the exclusive demodulated reference signal of the PBCH of a cell occupies can be preparatory Agreement.

Root sequence for generating demodulated reference signal is different.For example, within a PBCH information update period, for The exclusive demodulated reference signal of n times PBCH occurs for cell 1, and the exclusive demodulated reference signal sequence of PBCH that homogeneous is not sent is based on Different root sequences generates.In this way, within a PBCH information update period, being sent every time for same cell The sequence of the exclusive demodulated reference signal of PBCH is all different.

Used cyclic shift is different when generating demodulated reference signal based on root sequence.For example, in a PBCH information In update cycle, the exclusive demodulated reference signal of n times PBCH occurs for cell 1, and the exclusive demodulation ginseng of the PBCH that homogeneous is not sent Signal is examined to be based on identical sequence but generate using different cyclic shifts.In this way, for same cell, at one In the PBCH information update period, the sequence of the exclusive demodulated reference signal of the PBCH sent every time is all different.

When the above scheme of the embodiment of the present application is applied to 3GPP 5G NR system, in a kind of possible scheme, The PBCH information update period is 80ms, within a PBCH information update period, sends a PBCH every 20ms, and at one The PBCH information (system information sent by PBCH, such as MIB) sent in the PBCH information update period is identical, but passes through Different redundancy versions (Redundancy Version, RV) are distinguished.

According to the design principle of the exclusive demodulated reference signal of above-mentioned PBCH, the embodiment of the present application is illustratively given Possible scheme when being applied in 3GPP 5G NR system.In 3GPP 5G NR system, the PBCH information update period is 80ms, Within a PBCH information update period, a PBCH is sent every 20ms.PBCH occupies 2 orthogonal frequency division multiplexing in the time domain (Orthogonal Frequency Division Multiplexing, OFDM) symbol occupies 288 subcarriers on frequency domain (i.e. 24 PRB) send the exclusive demodulated reference signal (Demodulation of PBCH on the running time-frequency resource that PBCH is occupied Reference Signal, DMRS), in the following examples, the PBCH own reference signal be known as NR PBCH DMRS or PBCH DMRS。

In the example shown in following figure 2 A to Fig. 5 C, the value of q is for distinguishing root sequence, the identical expression root sequence of value Identical, value difference indicates that root sequence is different, is identified with taking for q in the square of the running time-frequency resource shared by mark PBCH DMRS Value.For the value of Vshift for distinguishing cyclic shift, the identical expression cyclic shift of value is identical, and value difference indicates cyclic shift Difference is distinguished with filling mode in figure, and identical filling mode indicates identical cyclic shift, different filling mode tables Show different cyclic shifts.

Scheme 1

The NR PBCH DMRS sequence of different cells is generated according to different root sequences, the NR PBCH of different community DMRS occupies same frequency position, and uses identical cyclic shift.For same cell, in the NR PBCH information update period Interior, NR PBCH DMRS sequence is generated based on different root sequences but using identical cyclic shift, to pass through different sequences Column are to distinguish different RV versions.

Fig. 2A is schematically illustrated in 2 OFDM symbols that PBCH is occupied, the NR of cell 1, cell 2, cell 3 The cyclic shift of the occupied running time-frequency resource position PBCH DMRS, used root sequence and use.As shown in Figure 2 A, this 3 The occupied frequency domain resource of NR PBCH DMRS of a cell is identical, and the NR PBCH DMRS sequence of this 3 cells is based on difference Root sequence generate (different q value is shown as in figure), the NR PBCH DMRS of this 3 cells uses identical cyclic shift (identical filling mode is shown as in figure).

Fig. 2 B is schematically illustrated in cell 1, cell 2, and within a PBCH information update period, hair is repeated several times In the PBCH sent, the cyclic shift of the occupied running time-frequency resource position NR PBCH DMRS, used root sequence and use. For same cell, the network equipment (such as base station) repeats to send primary within a PBCH information update period every 20ms PBCH.In the PBCH sent every time, the NR PBCH DMRS of same cell occupies identical frequency domain resource, and is followed using identical Ring shifts (identical filling mode is expressed as in figure).Within a PBCH information update period, sent in the cell every time NR PBCH DMRS sequence (different q values is expressed as in figure) is generated based on different root sequence.

In identical time domain (such as on the position of 20ms), the NR PBCH DMRS sequence of cell 1 and cell 2 is according to difference Root sequence generate (different q values is expressed as in figure), the NR PBCH DMRS of cell 1 and cell 2 occupies same frequency position, And use identical cyclic shift (identical filling mode is expressed as in figure).

Scheme 2

Identical as scheme 1 for different cells, the NR PBCH DMRS sequence of different community is according to different root sequences It generates, the NR PBCH DMRS of different community occupies same frequency position, and uses identical cyclic shift.It is different from scheme 1 , for same cell, within the NR PBCH information update period, NR PBCH DMRS sequence be based on identical sequence but It is generated using different cyclic shifts, to distinguish different RV versions.

Fig. 2 C is schematically illustrated in cell 1, cell 2, and within a PBCH information update period, hair is repeated several times In the PBCH sent, the cyclic shift of the occupied running time-frequency resource position NR PBCH DMRS, used root sequence and use. For same cell, the network equipment (such as base station) repeats to send primary within a PBCH information update period every 20ms PBCH.In the PBCH sent every time, the NR PBCH DMRS of same cell occupies identical frequency domain resource, NR PBCH DMRS sequence Column are generated according to identical sequence (being expressed as identical q value in figure) but (are expressed as not in figure using different cyclic shifts Same filling mode).

In identical time domain (such as on the position of 20ms), the NR PBCH DMRS sequence of cell 1 and cell 2 is based on difference Root sequence generate (different q values is expressed as in figure), the NR PBCH DMRS of cell 1 and cell 2 occupies same frequency position, And use identical cyclic shift (identical filling mode is expressed as in figure).

Scheme 3

For different cells, the NR PBCH DMRS sequence of different community is generated according to identical sequence, different small The NR PBCH DMRS in area occupies same frequency position, but uses different cyclic shifts.For same cell, in NR PBCH In the information update period, NR PBCH DMRS sequence is generated based on different root sequences but using identical cyclic shift, thus Distinguish different RV versions.

Fig. 3 A is schematically illustrated in 2 OFDM symbols that PBCH is occupied, the NR PBCH DMRS institute of different community The cyclic shift of the running time-frequency resource position of occupancy, used root sequence and use.As shown in Figure 3A, cell 1,2 and of cell The occupied frequency domain resource of NR PBCH DMRS of cell 3 is identical, and the NR PBCH DMRS sequence of this 3 cells is based on identical Root sequence generates (identical q value is expressed as in figure), and the NR PBCH DMRS of this 3 cells is using different cyclic shift (figures In be expressed as different filling modes).

Fig. 3 B is schematically illustrated in cell 1, cell 2, and within a PBCH information update period, hair is repeated several times In the PBCH sent, the cyclic shift of the occupied running time-frequency resource position NR PBCH DMRS, used root sequence and use. For same cell, the network equipment (such as base station) repeats to send primary within a PBCH information update period every 20ms PBCH.In the PBCH sent every time, the NR PBCH DMRS of same cell occupies identical frequency domain resource, and is followed using identical Ring shifts (identical filling mode is expressed as in figure).Within a PBCH information update period, sent in the cell every time NR PBCH DMRS sequence (different q values is expressed as in figure) is generated based on different root sequence.

In identical time domain (such as on the position of 20ms), the NR PBCH DMRS sequence of cell 1 and cell 2 is according to identical Root sequence generate (identical q value is expressed as in figure), the NR PBCH DMRS of cell 1 and cell 2 occupies same frequency position, And use different cyclic shifts (identical filling mode is expressed as in figure).

Scheme 4

Identical as scheme 3 for different cells, the NR PBCH DMRS sequence of different community is according to identical sequence It generates, the NR PBCH DMRS of different community occupies same frequency position, but uses different cyclic shifts.For same small Area, unlike scheme 3, within the NR PBCH information update period, NR PBCH DMRS sequence be based on identical sequence but It is generated using different cyclic shifts.

Fig. 3 C is schematically illustrated in cell 1, cell 2, and within a PBCH information update period, hair is repeated several times In the PBCH sent, the cyclic shift of the occupied running time-frequency resource position NR PBCH DMRS, used root sequence and use. For same cell, the network equipment (such as base station) repeats to send primary within a PBCH information update period every 20ms PBCH.In the PBCH sent every time, the NR PBCH DMRS of same cell occupies identical frequency domain resource, NR PBCH DMRS sequence Column are generated according to identical sequence (being expressed as identical q value in figure) but (are expressed as not in figure using different cyclic shifts Same filling mode).

In identical time domain (such as on the position of 20ms), the NR PBCH DMRS sequence of cell 1 and cell 2 is using different Cyclic shift (different filling modes is expressed as in figure), the NR PBCH DMRS of cell 1 and cell 2 occupies same frequency position It sets, and is based on identical sequence (being indicated in figure with identical q value).

Scheme 5

For different cells, the NR PBCH DMRS sequence of different community is generated according to different root sequences, different small The NR PBCH DMRS in area occupies different frequency domain positions, but uses identical cyclic shift.For same cell, in NR In the PBCH information update period, NR PBCH DMRS sequence is generated based on different root sequences but using identical cyclic shift, To distinguish different RV versions.

Fig. 4 A is schematically illustrated in 2 OFDM symbols that PBCH is occupied, the NR PBCH DMRS institute of different community The cyclic shift of the running time-frequency resource position of occupancy, used root sequence and use.As shown in Figure 4 A, cell 1,2 and of cell The occupied frequency domain resource of NR PBCH DMRS of cell 3 is not identical, and the NR PBCH DMRS sequence of this 3 cells is based on difference Root sequence generate (different q values is expressed as in figure), the NR PBCH DMRS of this 3 cells uses identical cyclic shift (identical filling mode is expressed as in figure).

Fig. 4 B is schematically illustrated in cell 1, cell 2, and within a PBCH information update period, hair is repeated several times In the PBCH sent, the cyclic shift of the occupied running time-frequency resource position NR PBCH DMRS, used root sequence and use. For same cell, the network equipment (such as base station) repeats to send primary within a PBCH information update period every 20ms PBCH.In the PBCH sent every time, the NR PBCH DMRS of same cell occupies identical frequency domain resource, and is followed using identical Ring shifts (identical filling mode is expressed as in figure).Within a PBCH information update period, sent in the cell every time NR PBCH DMRS sequence (different q values is expressed as in figure) is generated based on different root sequence.

In identical time domain (such as on the position of 20ms), the NR PBCH DMRS sequence of cell 1 and cell 2 is according to difference Root sequence generate (different q values is expressed as in figure), and the NR PBCH DMRS of cell 1 and cell 2 occupies different frequencies Domain position, but use identical cyclic shift (identical filling mode is expressed as in figure).

Scheme 6

Identical as scheme 5 for different cells, the NR PBCH DMRS sequence of different community is according to identical sequence It generates, the NR PBCH DMRS of different community occupies different frequency domain positions, but uses identical cyclic shift.For same small Area, unlike scheme 5, within the NR PBCH information update period, NR PBCH DMRS sequence be based on identical sequence but It is generated using different cyclic shifts.

Fig. 4 C is schematically illustrated in cell 1, cell 2, and within a PBCH information update period, hair is repeated several times In the PBCH sent, the cyclic shift of the occupied running time-frequency resource position NR PBCH DMRS, used root sequence and use. For same cell, the network equipment (such as base station) repeats to send primary within a PBCH information update period every 20ms PBCH.In the PBCH sent every time, the NR PBCH DMRS of same cell occupies identical frequency domain resource, NR PBCH DMRS sequence Column are generated according to identical sequence (being expressed as identical q value in figure) but (are expressed as not in figure using different cyclic shifts Same filling mode).

In identical time domain (such as on the position of 20ms), the NR PBCH DMRS sequence of cell 1 and cell 2 is using identical Cyclic shift (identical filling mode is expressed as in figure), the NR PBCH DMRS of cell 1 and cell 2 occupies different frequency domains Position, and based on different root sequences (being indicated in figure with different q values).

Scheme 7

For different cells, the NR PBCH DMRS sequence of different community is generated according to identical sequence, different small The NR PBCH DMRS in area occupies different frequency domain positions, and uses different cyclic shifts.For same cell, in NR In the PBCH information update period, NR PBCH DMRS sequence is generated based on different root sequences but using identical cyclic shift, To distinguish different RV versions.

Fig. 5 A is schematically illustrated in 2 OFDM symbols that PBCH is occupied, the NR PBCH DMRS institute of different community The cyclic shift of the running time-frequency resource position of occupancy, used root sequence and use.As shown in Figure 5A, cell 1, cell 2, small The occupied frequency domain resource of NR PBCH DMRS in area 3 is not identical, and the NR PBCH DMRS sequence of this 3 cells is based on identical Root sequence generates (different q values is expressed as in figure), but (identical filling side is expressed as in figure using identical cyclic shift Formula).

Fig. 5 B is schematically illustrated in cell 1, cell 2, and within a PBCH information update period, hair is repeated several times In the PBCH sent, the cyclic shift of the occupied running time-frequency resource position NR PBCH DMRS, used root sequence and use. For same cell, the network equipment (such as base station) repeats to send primary within a PBCH information update period every 20ms PBCH.In the PBCH sent every time, the NR PBCH DMRS of same cell occupies identical frequency domain resource, using identical circulation It shifts (identical filling mode is expressed as in figure).Within a PBCH information update period, sent in the cell every time NR PBCH DMRS sequence generates (different q values is expressed as in figure) based on different root sequences.

In identical time domain (such as on the position of 20ms), the NR PBCH DMRS sequence of cell 1 and cell 2 is according to identical Root sequence generate (identical q value is expressed as in figure), and different filling sides (is expressed as using different cyclic shifts in figure Formula), and the NR PBCH DMRS of cell 1 and cell 2 occupies different frequency domain positions.

Scheme 8

Identical as scheme 7 for different cells, the NR PBCH DMRS sequence of different community is according to identical sequence It generates, the NR PBCH DMRS of different community occupies different frequency domain positions, and uses different cyclic shifts.For same small Area, unlike scheme 7, within the NR PBCH information update period, NR PBCH DMRS sequence be based on identical sequence but It is generated using different cyclic shifts.

Fig. 5 C is schematically illustrated in cell 1, cell 2, and within a PBCH information update period, hair is repeated several times In the PBCH sent, the cyclic shift of the occupied running time-frequency resource position NR PBCH DMRS, used root sequence and use. For same cell, the network equipment (such as base station) repeats to send primary within a PBCH information update period every 20ms PBCH.In the PBCH sent every time, the NR PBCH DMRS of same cell occupies identical frequency domain resource, NR PBCH DMRS sequence Column are generated according to identical sequence (being expressed as identical q value in figure) but (are expressed as not in figure using different cyclic shifts Same filling mode).

In example above, it is described so that PBCH occupies 2 OFDM symbols and 288 subcarriers as an example, the application Embodiment to the PBCH symbol quantity occupied in the time domain and the number of subcarriers occupied on frequency domain with no restriction.

Fig. 6 schematically illustrates the exclusive demodulated reference signal transmissions process of PBCH provided by the embodiments of the present application, such as schemes It is shown, the process can include:

S601: the network equipment (such as base station) generates the exclusive demodulated reference signal of PBCH for sending on PBCH.

Specifically, in the step, the network equipment (such as base station) can be generated according to the description of previous embodiment in PBCH The sequence of the exclusive demodulated reference signal of the PBCH of upper transmission.The exclusive demodulated reference signal of PBCH can be 5G NR PBCH DMRS。

S602: the network equipment (such as base station) sends the exclusive demodulated reference signal of PBCH generated on PBCH.Wherein, phase The exclusive demodulated reference signal of PBCH with different community in time domain occupies different frequency domain resource and/or corresponding different signal sequence Column.

Specifically, in the step, the running time-frequency resource for the exclusive demodulated reference signal of PBCH that the network equipment (such as base station) is sent Position and sending method, can be as in the foregoing embodiment, is not repeated herein.

S603: terminal receives the exclusive demodulated reference signal of PBCH that the network equipment (such as base station) is sent on PBCH, and can Channel estimation is further carried out to PBCH according to the exclusive demodulated reference signal of PBCH received.

Specifically, terminal can believe the exclusive demodulation reference of the PBCH that transmission is repeated several times in a PBCH information update period Number Soft Inform ation merging and demodulated, and channel estimation is carried out based on the signal after demodulation.

Optionally, corresponding wave beam can be used to send the exclusive demodulated reference signal of PBCH for the network equipment (such as base station), and one The PBCH that PBCH is sent every time in the information update period uses corresponding wave beam, and can pass through the exclusive demodulation reference of PBCH of transmission Signal implicitly indicates used wave beam, such as the index of instruction wave beam.

Optionally, corresponding radio frames can be used to send the exclusive demodulated reference signal of PBCH for the network equipment (such as base station), and one The PBCH sent every time in a PBCH information update period uses corresponding radio frames, and can pass through the exclusive demodulation of PBCH of transmission Reference signal implicitly indicates used radio frames, such as the index or frame number of instruction radio frames.

By above description as can be seen that in the embodiment of the present application, the network equipment (such as base station) is generated in PBCH The exclusive demodulated reference signal of the PBCH of transmission, and the exclusive demodulated reference signal of the PBCH is sent on PBCH, wherein when identical The reference signal of different community occupies different frequency domain resources and/or corresponding different signal sequence on domain, therefore can be improved PBCH detection demodulation reliability, can reduce system signaling expense, and then system efficiency of transmission can be improved.

Based on the same technical idea, the embodiment of the present application also provides a kind of network equipment (such as base station), which is set The process of the network equipment (such as base station) side in standby achievable previous embodiment.

It is the structural schematic diagram of the network equipment provided by the embodiments of the present application referring to Fig. 7.As shown, the network equipment Can include: generation module 701, sending module 702, in which:

Generation module 701 is used to generate the exclusive demodulated reference signal of PBCH for sending on PBCH；Sending module 702 For sending the exclusive demodulated reference signal of the PBCH on PBCH, wherein the exclusive solution of the PBCH of different community in identical time domain Reference signal is adjusted to occupy different frequency domain resources and/or corresponding different signal sequence.

Optionally, sending module 702 can be specifically used for: it is exclusive to send PBCH for n times within a PBCH information update period Demodulated reference signal, N are the integer more than or equal to 1, wherein the exclusive demodulated reference signal of PBCH that n times are sent in same cell It is at least one of in the following areas different:

Optionally, the exclusive demodulation reference letter of the PBCH that n times are sent within a PBCH information update period of same cell In number, the exclusive demodulated reference signal of the PBCH sent every time uses a corresponding wave beam, the exclusive solution of PBCH that the n times are sent Reference signal and N number of beam index is adjusted to correspond；Alternatively, n times are sent out within a PBCH information update period of same cell In the exclusive demodulated reference signal of the PBCH sent, the exclusive demodulated reference signal of the PBCH sent every time is wireless using corresponding one The index of frame, the exclusive demodulated reference signal of PBCH and N number of radio frames that the n times are sent corresponds.

Based on the same technical idea, the embodiment of the present application also provides a kind of terminal, which can realize aforementioned implementation The process of terminal side in example.

It is the structural schematic diagram of terminal provided by the embodiments of the present application referring to Fig. 8.As shown, in the terminal can include: Receiving module 801, channel estimation module 802, in which:

Receiving module 801 is for receiving the exclusive demodulated reference signal of PBCH, wherein the PBCH of different community in identical time domain Exclusive demodulated reference signal occupies different frequency domain resources and/or corresponding different signal sequence；Channel estimation module 802 is used for Channel estimation is carried out according to the exclusive demodulated reference signal of the PBCH.

It is the structural schematic diagram of the network equipment provided by the embodiments of the present application referring to Fig. 9.As shown, the communication device Can include: processor 901, memory 902, transceiver 903 and bus interface.

Processor 901, which is responsible for management bus architecture and common processing, memory 902, can store processor 801 and is holding Used data when row operation.Transceiver 903 is for sending and receiving data under the control of processor 901.

Bus architecture may include the bus and bridge of any number of interconnection, specifically represented by processor 901 one or The various circuits for the memory that multiple processors and memory 902 represent link together.Bus architecture can also will be such as outer Various other circuits of peripheral equipment, voltage-stablizer and management circuit or the like link together, these are all that this field institute is public Know, therefore, it will not be further described herein.Bus interface provides interface.Processor 901 is responsible for the total coil holder of management Structure and common processing, memory 902 can store the used data when executing operation of processor 901.

The process that the embodiment of the present invention discloses, can be applied in processor 901, or realized by processor 901.In reality During now, each step of signal processing flow can pass through the integrated logic circuit or software of the hardware in processor 901 The instruction of form is completed.Processor 901 can be general processor, digital signal processor, specific integrated circuit, scene can compile Journey gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, may be implemented Or disclosed each method, step and logic diagram in the execution embodiment of the present invention.General processor can be microprocessor Or any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly at hardware Reason device executes completion, or in processor hardware and software module combine and execute completion.Software module can be located at random Memory, flash memory, read-only memory, the abilities such as programmable read only memory or electrically erasable programmable memory, register In the storage medium of domain maturation.The storage medium is located at memory 902, and processor 901 reads the information in memory 902, knot Close the step of its hardware completes signal processing flow.

Specifically, processor 901 execute following process for reading the program in memory 902: generate for The exclusive demodulated reference signal of the PBCH sent on PBCH；The exclusive demodulation ginseng of the PBCH is sent on PBCH by transceiver 903 Examine signal, wherein the exclusive demodulated reference signal of the PBCH of different community occupies different frequency domain resource and/or right in identical time domain Answer different signal sequences.The specific implementation process of above-mentioned process can be found in the description of previous embodiment, be not repeated herein.

It is the structural schematic diagram of terminal provided by the embodiments of the present application referring to Figure 10.As shown, the terminal can include: Processor 1001, memory 1002, transceiver 1003 and bus interface.

Processor 1001, which is responsible for management bus architecture and common processing, memory 1002, can store processor 801 and exists Execute used data when operation.Transceiver 1003 is for sending and receiving data under the control of processor 1001.

Bus architecture may include the bus and bridge of any number of interconnection, specifically represented by processor 1001 one or The various circuits for the memory that multiple processors and memory 1002 represent link together.Bus architecture can also will be such as outer Various other circuits of peripheral equipment, voltage-stablizer and management circuit or the like link together, these are all that this field institute is public Know, therefore, it will not be further described herein.Bus interface provides interface.Processor 1001 is responsible for management bus Framework and common processing, memory 1002 can store the used data when executing operation of processor 1001.

The process that the embodiment of the present invention discloses, can be applied in processor 1001, or realized by processor 1001.? During realization, each step of signal processing flow can be by the integrated logic circuit of the hardware in processor 1001 or soft The instruction of part form is completed.Processor 1001 can be general processor, digital signal processor, specific integrated circuit, scene Programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, can be with Realize or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be micro- place Manage device or any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in firmly Part processor executes completion, or in processor hardware and software module combination execute completion.Software module can be located at Random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory, register etc. In the storage medium of this field maturation.The storage medium is located at memory 1002, and processor 1001 is read in memory 1002 Information, in conjunction with the step of its hardware completion signal processing flow.

Specifically, processor 1001 execute following process: it is special to receive PBCH for reading the program in memory 1002 Belong to demodulated reference signal, wherein the exclusive demodulated reference signal of the PBCH of different community occupies different frequency domain money in identical time domain Source and/or corresponding different signal sequence；Channel estimation is carried out according to the exclusive demodulated reference signal of the PBCH.Above-mentioned process Specific implementation process can be found in the description of previous embodiment, be not repeated herein.

Based on the same technical idea, the embodiment of the present application also provides a kind of computer storage mediums.The computer Readable storage medium storing program for executing is stored with computer executable instructions, before the computer executable instructions are for executing the computer State the described exclusive demodulated reference signal transmissions process of PBCH realized by the network equipment of embodiment.

Based on the same technical idea, the embodiment of the present application also provides a kind of computer storage mediums.The computer Readable storage medium storing program for executing is stored with computer executable instructions, before the computer executable instructions are for executing the computer State the described exclusive demodulated reference signal transmissions process of PBCH realized by terminal of embodiment.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of exclusive demodulated reference signal transmissions method of Physical Broadcast Channel PBCH characterized by comprising

The network equipment generates the exclusive demodulated reference signal of PBCH for sending on PBCH；

The network equipment sends the exclusive demodulated reference signal of the PBCH on PBCH, wherein different community in identical time domain The exclusive demodulated reference signal of PBCH occupy different frequency domain resource and/or corresponding different signal sequence.

2. the method as described in claim 1, which is characterized in that the exclusive demodulation reference letter of the PBCH of different community in identical time domain Number occupy different frequency domain resource and/or corresponding different signal sequence, comprising:

The exclusive demodulated reference signal of the PBCH of different community is at least one of in the following areas different:

3. method according to claim 1 or 2, which is characterized in that the network equipment is a PBCH information update period Interior n times send the exclusive demodulated reference signal of PBCH, and N is the integer more than or equal to 1, wherein the PBCH that n times are sent in same cell Exclusive demodulated reference signal is at least one of in the following areas different:

4. method as claimed in claim 3, which is characterized in that

The exclusive demodulated reference signal of the PBCH of different community occupies different frequency domain positions, based on identical sequence in identical time domain It arranges and uses identical cyclic shift；Within a PBCH information update period of same cell, the exclusive solution of PBCH of n times transmission Reference signal is adjusted based on identical sequence but uses different cyclic shifts, or based on different root sequences but using identical Cyclic shift；Alternatively,

The exclusive demodulated reference signal of the PBCH of different community occupies identical frequency domain position, is based on identical sequence in identical time domain It arranges but uses different cyclic shifts；Within a PBCH information update period of same cell, the exclusive solution of PBCH of n times transmission Reference signal is adjusted based on identical sequence but uses different cyclic shifts, or based on different root sequences but using identical Cyclic shift；Alternatively,

The exclusive demodulated reference signal of the PBCH of different community occupies different frequency domain positions, based on different root sequences in identical time domain It arranges but uses identical cyclic shift；Within a PBCH information update period of same cell, the exclusive solution of PBCH of n times transmission Reference signal is adjusted based on identical sequence but uses different cyclic shifts, or based on different root sequences but using identical Cyclic shift；Alternatively,

The exclusive demodulated reference signal of the PBCH of different community occupies different frequency domain positions, based on identical sequence in identical time domain It arranges but uses different cyclic shifts；Within a PBCH information update period of same cell, the exclusive solution of PBCH of n times transmission Reference signal is adjusted based on identical sequence but uses different cyclic shifts, or based on different root sequences but using identical Cyclic shift.

5. the method as described in claim 1, which is characterized in that the n times within a PBCH information update period of same cell In the exclusive demodulated reference signal of the PBCH of transmission, the exclusive demodulated reference signal of the PBCH sent every time uses a corresponding wave Beam, the exclusive demodulated reference signal of PBCH and N number of beam index that the n times are sent correspond；Alternatively,

In the exclusive demodulated reference signal of PBCH that n times are sent within a PBCH information update period of same cell, send out every time The exclusive demodulated reference signal of the PBCH sent uses a corresponding radio frames, the exclusive demodulation reference letter of the PBCH that the n times are sent It number is corresponded with the indexes of N number of radio frames.

6. the method as described in claim 1, which is characterized in that the corresponding sequence of the exclusive demodulated reference signal of PBCH is ZC Sequence.

7. a kind of exclusive demodulated reference signal transmissions method of Physical Broadcast Channel PBCH characterized by comprising

Terminal receives the exclusive demodulated reference signal of PBCH, wherein the exclusive demodulation reference letter of the PBCH of different community in identical time domain Number occupy different frequency domain resource and/or corresponding different signal sequence；

8. the method for claim 7, which is characterized in that the exclusive demodulation reference letter of the PBCH of different community in identical time domain Number occupy different frequency domain resource and/or corresponding different signal sequence, comprising:

9. method as claimed in claim 7 or 8, which is characterized in that the N within a PBCH information update period of same cell The exclusive demodulated reference signal of the PBCH of secondary transmission is at least one of in the following areas different:

10. method as claimed in claim 9, which is characterized in that

11. the method for claim 7, which is characterized in that the n times within a PBCH information update period of same cell In the exclusive demodulated reference signal of the PBCH of transmission, the exclusive demodulated reference signal of the PBCH sent every time uses a corresponding wave Beam, the exclusive demodulated reference signal of PBCH and N number of beam index that the n times are sent correspond；Alternatively,

12. the method for claim 7, which is characterized in that the corresponding sequence of the exclusive demodulated reference signal of PBCH is ZC sequence.

13. a kind of network equipment characterized by comprising

Sending module, for sending the exclusive demodulated reference signal of the PBCH on PBCH, wherein different community in identical time domain The exclusive demodulated reference signal of PBCH occupy different frequency domain resource and/or corresponding different signal sequence.

14. the network equipment as claimed in claim 13, which is characterized in that the exclusive demodulated reference signal of the PBCH of different community is extremely It is few one of in the following areas different:

15. the network equipment according to claim 13 or 14, which is characterized in that the sending module is specifically used for: at one N times send the exclusive demodulated reference signal of PBCH in the PBCH information update period, and N is the integer more than or equal to 1, wherein same small The exclusive demodulated reference signal of PBCH that n times are sent in area is at least one of in the following areas different:

16. the network equipment as claimed in claim 13, which is characterized in that in a PBCH information update period of same cell In the exclusive demodulated reference signal of PBCH that interior n times are sent, the exclusive demodulated reference signal of the PBCH sent every time uses corresponding one A wave beam, the exclusive demodulated reference signal of PBCH and N number of beam index that the n times are sent correspond；Alternatively,

17. a kind of terminal characterized by comprising

Receiving module, for receiving the exclusive demodulated reference signal of PBCH, wherein the exclusive solution of the PBCH of different community in identical time domain Reference signal is adjusted to occupy different frequency domain resources and/or corresponding different signal sequence；

18. terminal as claimed in claim 17, which is characterized in that the exclusive demodulated reference signal of the PBCH of different community at least exists One of following aspect is different:

19. the terminal as described in claim 17 or 18, which is characterized in that in a PBCH information update period of same cell The exclusive demodulated reference signal of PBCH that interior n times are sent is at least one of in the following areas different:

20. terminal as claimed in claim 17, which is characterized in that the N within a PBCH information update period of same cell In the exclusive demodulated reference signal of the PBCH of secondary transmission, the exclusive demodulated reference signal of the PBCH sent every time uses a corresponding wave Beam, the exclusive demodulated reference signal of PBCH and N number of beam index that the n times are sent correspond；Alternatively,