CN108809877A - A kind of transmission method of demodulated reference signal, device, base station and terminal - Google Patents

A kind of transmission method of demodulated reference signal, device, base station and terminal Download PDF

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Publication number
CN108809877A
CN108809877A CN201710309296.9A CN201710309296A CN108809877A CN 108809877 A CN108809877 A CN 108809877A CN 201710309296 A CN201710309296 A CN 201710309296A CN 108809877 A CN108809877 A CN 108809877A
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CN
China
Prior art keywords
pbch
reference signal
demodulated reference
resource
subcarrier
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CN201710309296.9A
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Chinese (zh)
Inventor
李铁
郑方政
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电信科学技术研究院
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Priority to CN201710309296.9A priority Critical patent/CN108809877A/en
Publication of CN108809877A publication Critical patent/CN108809877A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0252Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver
    • H04L27/2655Synchronisation arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver

Abstract

The present invention provides a kind of transmission method of demodulated reference signal, device, base station and terminal, the transmission problem of PBCH demodulation pilot tone in new NR systems of eating dishes without rice or wine is solved.The present invention transmission method include:In the target resource that NR Physical Broadcast Channel PBCH is occupied, the demodulated reference signal of PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing;The target resource for the demodulated reference signal for being mapped with PBCH is sent to terminal.The demodulated reference signal of PBCH is sent to terminal by the embodiment of the present invention by the resource that NR Physical Broadcast Channel PBCH is occupied of newly eating dishes without rice or wine, and realizes the transmission of the demodulated reference signal of PBCH in NR systems.

Description

A kind of transmission method of demodulated reference signal, device, base station and terminal

Technical field

The present invention relates to the technical field of communications applications more particularly to a kind of transmission method of demodulated reference signal, device, Base station and terminal.

Background technology

In 4G LTE (Long Term Evolution, long term evolution) system, PBCH (Physical Broadcast Channel) is used for passing Pass cell important information, including system bandwidth, System Frame Number etc..Terminal can be appreciated that system essential information by PBCH, then for Access network is prepared.PBCH carries out channel estimation using CRS (cell reference signals) and demodulates in LTE.

In 3GPP 5G NR (New Radio, newly eat dishes without rice or wine) researchs, Physical Broadcast Channel is still important topic direction.NR PBCH is equally used for transmitting network-critical and essential information, other than including system bandwidth, System Frame Number, it is also possible to including wave beam The information such as scanning.288 subcarrier of NR PBCH band occupancies, 2 time-domain symbols, and 5G systems are (special in order to reduce system power It is terminal power) it consumes, no cell reference signals (CRS) design, NR PBCH need to design exclusive demodulated reference signal, therefore, need Design the transmission plan of the exclusive demodulated reference signal of new NR PBCH.

Invention content

The purpose of the present invention is to provide a kind of transmission method of demodulated reference signal, device, base station and terminals, to solve Certainly in NR systems PBCH demodulate pilot tone transmission problem.

To achieve the goals above, the present invention provides a kind of transmission methods of demodulated reference signal, are applied to base station, packet It includes:

In the target resource that NR Physical Broadcast Channel PBCH is occupied of newly eating dishes without rice or wine, using time division multiplexing and/or frequency division multiplexing Mode map the demodulated reference signal of PBCH;

The target resource for the demodulated reference signal for being mapped with PBCH is sent to terminal.

Wherein, in the target resource that NR Physical Broadcast Channel PBCH is occupied of newly eating dishes without rice or wine, using time division multiplexing and/or frequency division The mode of multiplexing maps the step of demodulated reference signal of PBCH and includes:

In the target resource that NR PBCH are occupied, first resource is determined;Wherein, the target resource corresponds to M on frequency domain A subcarrier corresponds to L OFDM symbol in the time domain, and the first resource corresponds to N number of subcarrier on frequency domain, right in the time domain L OFDM symbol, N is answered to be less than M, M is the integral multiple of N, and M, N and L are positive integer;

In the first resource, the demodulation ginseng of the PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing Examine signal;

It by the demodulated reference signal in the first resource, is expanded in Secondary resource by predetermined manner, described second Resource is the resource in addition to the first resource in the target resource.

Wherein, in the first resource, the demodulated reference signal of the PBCH is mapped by the way of frequency division multiplexing Step includes:

In L OFDM symbol of the first resource, the mesh of a demodulated reference signal for mapping PBCH is chosen Mark OFDM symbol;

In N number of subcarrier of the target OFDM symbol, the demodulation of PBCH described at least one subcarrier maps is chosen Reference signal.

Wherein, in the first resource, the step of demodulated reference signal of PBCH is mapped using time-multiplexed mode Including:

Respectively in N number of subcarrier of each OFDM symbol of the first resource, choose described in a subcarrier maps The demodulated reference signal of PBCH.

Wherein, the occupied subcarrier of demodulated reference signal has identical or different frequency domain in the L OFDM symbol Resource.

Wherein, in the first resource, the demodulation reference of PBCH is mapped by the way of time division multiplexing and frequency division multiplexing The step of signal includes:

Respectively in N number of subcarrier of each OFDM symbol of the first resource, choose described in multiple subcarrier maps The demodulated reference signal of PBCH;Or

In N number of subcarrier of the first OFDM symbol of the first resource, PBCH described in a subcarrier maps is chosen Demodulated reference signal, and in N number of subcarrier of the second OFDM symbol of the first resource, choose multiple subcarrier maps The demodulated reference signal of the PBCH.

To achieve the goals above, it the embodiments of the present invention also provide a kind of transmitting device of demodulated reference signal, answers For base station, including:

Mapping block, in the target resource that NR Physical Broadcast Channel PBCH is occupied of newly eating dishes without rice or wine, using time division multiplexing And/or the mode of frequency division multiplexing maps the demodulated reference signal of PBCH;

Transmission module, for the target resource for being mapped with the demodulated reference signal of PBCH to be sent to terminal.

Wherein, the mapping block includes:

Determination sub-module, in the target resource that NR PBCH are occupied, determining first resource;Wherein, the target money Source corresponds to M subcarrier on frequency domain, corresponds to L OFDM symbol in the time domain, and the first resource corresponds to N number of son on frequency domain Carrier wave corresponds to L OFDM symbol in the time domain, and N is less than M, and M is the integral multiple of N, and M, N and L are positive integer;

Mapping submodule, in the first resource, mapping institute by the way of time division multiplexing and/or frequency division multiplexing State the demodulated reference signal of PBCH;

Expansion module, for by the demodulated reference signal in the first resource, the second money to be expanded to by predetermined manner In source, the Secondary resource is the resource in addition to the first resource in the target resource.

Wherein, the determination sub-module includes:

First selection unit, in L OFDM symbol of the first resource, choosing one for mapping PBCH's The target OFDM symbol of demodulated reference signal;

Second selection unit, in N number of subcarrier of the target OFDM symbol, choosing at least one subcarrier and reflecting Penetrate the demodulated reference signal of the PBCH.

Wherein, the determination sub-module includes:

Third selection unit, in N number of subcarrier of each OFDM symbol of the first resource, choosing one respectively The demodulated reference signal of PBCH described in a subcarrier maps.

Wherein, the occupied subcarrier of demodulated reference signal has identical or different frequency domain in the L OFDM symbol Resource.

Wherein, the determination sub-module is used for respectively in N number of subcarrier of each OFDM symbol of the first resource, Choose the demodulated reference signal of PBCH described in multiple subcarrier maps;Or

For in N number of subcarrier of the first OFDM symbol of the first resource, choosing described in a subcarrier maps The demodulated reference signal of PBCH, and in N number of subcarrier of the second OFDM symbol of the first resource, choose multiple subcarriers Map the demodulated reference signal of the PBCH.

To achieve the goals above, the embodiments of the present invention also provide a kind of base station, including first memory, at first The computer program managed device and storage on the first memory and can run on first processor, the first processor execute The step in the transmission method of demodulated reference signal as described above is realized when the computer program.

To achieve the goals above, it the embodiments of the present invention also provide a kind of transmission method of demodulated reference signal, answers For terminal, including:

In the target resource that NR Physical Broadcast Channel PBCH is occupied, the demodulation reference letter of the PBCH of base station transmission is obtained Number, the demodulated reference signal is mapped in by the way of time division multiplexing and/or frequency division multiplexing in the target resource;

Demodulation process is carried out to PBCH according to the demodulated reference signal of the PBCH.

Wherein, the demodulated reference signal according to the PBCH includes to the step of PBCH progress demodulation process:

According to the demodulated reference signal and synchronous signal sequence of the PBCH, demodulation process is carried out to the PBCH.

Wherein, the synchronous signal sequence includes:Primary synchronization signal PSS sequences, secondary synchronization signal SSS sequences and TSS tri- At least one of grade synchronous signal sequence.

To achieve the goals above, it the embodiments of the present invention also provide a kind of transmitting device of demodulated reference signal, answers For terminal, including:

Acquisition module, in the target resource that NR Physical Broadcast Channel PBCH is occupied, obtaining the PBCH of base station transmission Demodulated reference signal, the demodulated reference signal using time division multiplexing and/or frequency division multiplexing by the way of be mapped in the target In resource;

Demodulation module, for carrying out demodulation process to PBCH according to the demodulated reference signal of the PBCH.

Wherein, the demodulation module is used for demodulated reference signal and synchronous signal sequence according to the PBCH, to described PBCH carries out demodulation process.

Wherein, the synchronous signal sequence includes:Primary synchronization signal PSS sequences, secondary synchronization signal SSS sequences and TSS tri- At least one of grade synchronous signal sequence.

To achieve the goals above, the embodiments of the present invention also provide a kind of terminal, including second memory, at second It manages device and is stored in the computer program that can be run on second memory and in second processor, the second processor executes The step in the transmission method of demodulated reference signal as described above is realized when the computer program.

The embodiment of the present invention has the advantages that:

The above-mentioned technical proposal of the embodiment of the present invention uses in the target resource that NR Physical Broadcast Channel PBCH is occupied Time division multiplexing and/or the mode of frequency division multiplexing map the demodulated reference signal of PBCH;The demodulated reference signal of PBCH will be mapped with The target resource be sent to terminal, the embodiment of the present invention passes through the resource that NR Physical Broadcast Channel PBCH is occupied of newly eating dishes without rice or wine will The demodulated reference signal of PBCH is sent to terminal, realizes the transmission of the demodulated reference signal of PBCH in NR systems.

Description of the drawings

Fig. 1 is the first work flow diagram of the transmission method of the demodulated reference signal of the embodiment of the present invention;

Fig. 2 is the second work flow diagram of the transmission method of the demodulated reference signal of the embodiment of the present invention;

Fig. 3 a are the of the demodulated reference signal for mapping the PBCH in the embodiment of the present invention by the way of frequency division multiplexing One mapping schematic diagram;

Fig. 3 b are the of the demodulated reference signal for mapping the PBCH in the embodiment of the present invention by the way of frequency division multiplexing Two mapping schematic diagrames;

Fig. 3 c are the of the demodulated reference signal for mapping the PBCH in the embodiment of the present invention by the way of frequency division multiplexing Three mapping schematic diagrames;

Fig. 4 a are the of the demodulated reference signal for mapping the PBCH in the embodiment of the present invention using time-multiplexed mode One mapping schematic diagram;

Fig. 4 b are the of the demodulated reference signal for mapping the PBCH in the embodiment of the present invention using time-multiplexed mode Two mapping schematic diagrames;

Fig. 5 a are the demodulation ginseng for mapping the PBCH in the embodiment of the present invention by the way of frequency division multiplexing and frequency division multiplexing Examine the first mapping schematic diagram of signal;

Fig. 5 b are the demodulation ginseng for mapping the PBCH in the embodiment of the present invention by the way of frequency division multiplexing and frequency division multiplexing Examine the second mapping schematic diagram of signal;

Fig. 5 c are the demodulation ginseng for mapping the PBCH in the embodiment of the present invention by the way of frequency division multiplexing and frequency division multiplexing Examine the third mapping schematic diagram of signal;

Fig. 6 is the third work flow diagram of the transmission method of the demodulated reference signal of the embodiment of the present invention;

Fig. 7 a are demodulated reference signal and primary synchronization signal in the transmission method of the demodulated reference signal of the embodiment of the present invention Position view;

Fig. 7 b are demodulated reference signal and secondary synchronization signal in the transmission method of the demodulated reference signal of the embodiment of the present invention Position view;

Fig. 8 is the first structure block diagram of the base station of the embodiment of the present invention;

Fig. 9 is the second structure diagram of the base station of the embodiment of the present invention;

Figure 10 is the first structure block diagram of the terminal of the embodiment of the present invention;

Figure 11 is the second structure diagram of the terminal of the embodiment of the present invention.

Specific implementation mode

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with specific implementation Example and attached drawing are described in detail.

The embodiment provides a kind of transmission method of demodulated reference signal, device, base station and terminals, solve PBCH demodulates the transmission problem of pilot tone in NR systems.

In some embodiments of the invention, shown in referring to Fig.1, a kind of transmission method of demodulated reference signal is provided, Including:

Step 101:It is multiple using time division multiplexing and/or frequency division in the target resource that NR Physical Broadcast Channel PBCH is occupied Mode maps the demodulated reference signal of PBCH.

Here, the target resource that NR Physical Broadcast Channel PBCH is occupied is 288 subcarriers on frequency domain, is 2 in time domain A OFDM symbol.The demodulated reference signal of PBCH is embedded in NR objects by using the mode of time division multiplexing and/or frequency division multiplexing It manages in the resource that broadcast channel PBCH is occupied, both pilot density will not be made excessive, it will not the prodigious frequency deviation for reducing NR PBCH Efficiency, realizes the compromise of pilot density and NR PBCH spectrum efficiencies, and then ensure that the transmitting of NR PBCH.

Step 102:The target resource for the demodulated reference signal for being mapped with PBCH is sent to terminal.

Here, the target resource for the demodulated reference signal for being mapped with PBCH is sent to terminal so that terminal is according to the solution It adjusts reference signal to carry out channel estimation to PBCH, and then realizes the transmitting of Physical Broadcast Channel.

The transmission method of the demodulated reference signal of the embodiment of the present invention, in the target money that NR Physical Broadcast Channel PBCH is occupied In source, the demodulated reference signal of PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing;The demodulation of PBCH will be mapped with The target resource of reference signal is sent to terminal, and the embodiment of the present invention is occupied by the NR Physical Broadcast Channel PBCH that newly eats dishes without rice or wine Resource the demodulated reference signal of PBCH is sent to terminal, realize the transmission of the demodulated reference signal of PBCH in NR systems.

In some embodiments of the invention, as shown in Fig. 2, providing a kind of transmission method of demodulated reference signal, packet It includes:

Step 201:In the target resource that NR PBCH are occupied, first resource is determined;Wherein, the target resource is in frequency M subcarrier is corresponded on domain, corresponds to L OFDM symbol in the time domain, the first resource corresponds to N number of subcarrier on frequency domain, L OFDM symbol is corresponded in the time domain, and N is less than M, and M is the integral multiple of N, and M, N and L are positive integer.

Here, M, N are the positive integer more than 2, and the target resource that NR Physical Broadcast Channel PBCH is occupied is on frequency domain 288 subcarriers, are 2 OFDM symbols in time domain, i.e. M is equal to 288, L and is equal to 2.Preferably, above-mentioned first resource is on frequency domain Corresponding 12 subcarriers, correspond to 2 OFDM symbols in the time domain.

Step 202:In the first resource, the PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing Demodulated reference signal.

Here, it usesIndicate that the demodulated reference signal of NR PBCH, wherein i are the volume of demodulated reference signal Number, kiIndicate the subcarrier in frequency domain index for the demodulated reference signal that number is i, liIndicate number be i demodulated reference signal when Domain notation index.

When the demodulated reference signal number of PBCH is m, and when 1≤m≤23, the demodulated reference signal collection of NR PBCH is combined into: Ω={ Φm}

Wherein,i∈[1, m];j∈[1,m];i≠j;ki∈[1,12];kj∈[1,12];li∈[1,2];lj∈[1,2];(ki,li)≠(kj,lj)。

Further, the number of demodulated reference signal is in the exclusive demodulated reference signal set of above-mentioned NR PBCH:

Step 203:By the demodulated reference signal in the first resource, expanded in Secondary resource by predetermined manner, The Secondary resource is the resource in addition to the first resource in the target resource.

Here predetermined manner can be specially copy mode, and in the embodiment of the present invention, first is first chosen in target resource Resource carries out the demodulated reference signal of PBCH, is then expanded in Secondary resource by copy mode, improves the demodulation of PBCH The mapping efficiency of reference signal.

Step 204:The target resource for the demodulated reference signal for being mapped with PBCH is sent to terminal.

Here, the target resource for the demodulated reference signal for being mapped with PBCH is sent to terminal so that terminal is according to the solution It adjusts reference signal to carry out channel estimation to PBCH, and then realizes the transmitting of Physical Broadcast Channel.

Further, the PBCH is mapped by the way of frequency division multiplexing in the first resource in above-mentioned steps 201 Demodulated reference signal the step of include:

In L OFDM symbol of the first resource, the mesh of a demodulated reference signal for mapping PBCH is chosen Mark OFDM symbol;In N number of subcarrier of the target OFDM symbol, the solution of PBCH described at least one subcarrier maps is chosen Adjust reference signal.

Here, target OFDM symbol is any symbol in L OFDM symbol, and can choose N number of subcarrier and be completely used for Map the demodulated reference signal of the PBCH.

As shown in Figure 3a, in two OFDM symbols of first resource, first OFDM symbol is chosen as target OFDM Symbol, and choose the demodulated reference signal of subcarrier (a 7th subcarrier) mapping PBCH.

As shown in Figure 3b, in two OFDM symbols of first resource, first OFDM symbol is chosen as target OFDM Symbol, and choose the demodulated reference signal of two subcarrier (first subcarrier and the 7th subcarrier) mapping PBCH.

As shown in Figure 3c, in two OFDM symbols of first resource, first OFDM symbol is chosen as target OFDM Symbol, and choose four subcarriers (first subcarrier, the 4th subcarrier, the 7th subcarrier and the tenth subcarrier) and reflect Penetrate the demodulated reference signal of PBCH.

Further, the solution of PBCH is mapped using time-multiplexed mode in the first resource in above-mentioned steps 201 Adjust reference signal the step of include:

Respectively in N number of subcarrier of each OFDM symbol of the first resource, choose described in a subcarrier maps The demodulated reference signal of PBCH.

Specifically, respectively in 12 subcarriers of each OFDM symbol of first resource, a subcarrier maps are chosen The demodulated reference signal of the PBCH.In the L OFDM symbol the occupied subcarrier of demodulated reference signal have it is identical or Different frequency domain resources.

As shown in fig. 4 a, in first OFDM symbol and second OFDM symbol of first resource, the 7th son is chosen Carrier wave maps the demodulated reference signal of PBCH.At this point, the occupied subcarrier of demodulated reference signal has in two OFDM symbols Identical frequency domain resource.

As shown in Figure 4 b, the demodulation of the 3rd subcarrier maps PBCH is chosen in first OFDM symbol of first resource Reference signal, and the demodulation reference of the 10th subcarrier maps PBCH of selection is believed in second OFDM symbol of first resource Number.At this point, the occupied subcarrier of demodulated reference signal has different frequency domain resources in two OFDM symbols.

Further, it in above-mentioned steps 201 in the first resource, is reflected by the way of time division multiplexing and frequency division multiplexing The step of demodulated reference signal for penetrating PBCH includes:

Respectively in N number of subcarrier of each OFDM symbol of the first resource, choose described in multiple subcarrier maps The demodulated reference signal of PBCH.At this point, mapping the demodulation reference letter of PBCH using time division multiplexing and the united mode of frequency division multiplexing Number.

As shown in Figure 5 a, it is carried with the son of second OFDM symbol in the subcarrier of first OFDM symbol of first resource In wave, the demodulated reference signal of two subcarrier (third subcarrier and the tenth subcarrier) mapping PBCH is chosen, at this point, The occupied subcarrier of demodulated reference signal frequency domain resource having the same in two OFDM symbols.

Alternatively,

In N number of subcarrier of the first OFDM symbol of the first resource, PBCH described in a subcarrier maps is chosen Demodulated reference signal, and in N number of subcarrier of the second OFDM symbol of the first resource, choose multiple subcarrier maps The demodulated reference signal of the PBCH.

Here the first OFDM symbol is any symbol in L OFDM symbol, and the second OFDM symbol is L OFDM symbol In symbol in addition to the first OFDM symbol.

As shown in Figure 5 b, two subcarriers (third is chosen in the subcarrier of first OFDM symbol of first resource Subcarrier and the tenth subcarrier) mapping PBCH demodulated reference signal, first resource second OFDM symbol son carry In wave, the demodulated reference signal of subcarrier (a tenth subcarrier) mapping PBCH is chosen, at this point, being solved in two OFDM symbols Adjust the occupied subcarrier of reference signal that there is different frequency domain resources.

As shown in Figure 5 c, two subcarrier (thirds are chosen in N number of subcarrier of first OFDM symbol of first resource A subcarrier and the tenth subcarrier) mapping PBCH demodulated reference signal, first resource second OFDM symbol it is N number of In subcarrier, the demodulated reference signal of subcarrier (a 7th subcarrier) mapping PBCH is chosen, at this point, two OFDM symbols The middle occupied subcarrier of demodulated reference signal has different frequency domain resources.

To sum up, the demodulated reference signal of PBCH is embedded into NR by using the mode of time division multiplexing and/or frequency division multiplexing In the occupied resources of PBCH so that terminal can carry out channel estimation by the joint of frequency domain and time domain, can be with more acurrate complete At channel frequency deviation and Phase Tracking, and then improve the transmitting of Physical Broadcast Channel.

The transmission method of the demodulated reference signal of the embodiment of the present invention, in the target money that NR Physical Broadcast Channel PBCH is occupied In source, the demodulated reference signal of PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing;The demodulation of PBCH will be mapped with The target resource of reference signal is sent to terminal, and the embodiment of the present invention is occupied by the NR Physical Broadcast Channel PBCH that newly eats dishes without rice or wine Resource the demodulated reference signal of PBCH is sent to terminal, realize the transmission of the demodulated reference signal of PBCH in NR systems.

In some embodiments of the invention, as shown in fig. 6, additionally providing a kind of transmission method of demodulated reference signal, Including:

Step 601:In the target resource that NR Physical Broadcast Channel PBCH is occupied, the demodulation of the PBCH of base station transmission is obtained Reference signal, the demodulated reference signal are mapped in by the way of time division multiplexing and/or frequency division multiplexing in the target resource.

In the embodiment of the present invention, the demodulation reference of PBCH is believed by the way of time division multiplexing and/or frequency division multiplexing in base station It number is embedded in the resource that NR Physical Broadcast Channel PBCH is occupied, and the resource that will be mapped with the demodulated reference signal of PBCH is sent To terminal so that terminal can by the joint of frequency domain and time domain carry out channel estimation, can more acurrate completion channel frequency deviation and Phase Tracking, and then improve the transmitting of Physical Broadcast Channel.

Step 602:Demodulation process is carried out to PBCH according to the demodulated reference signal of the PBCH.

Further, which may particularly include the demodulated reference signal and synchronous signal sequence according to the PBCH, right The PBCH carries out demodulation process.The synchronous signal sequence includes but not limited to:Primary synchronization signal PSS sequences, auxiliary synchronous letter At least one of number SSS sequences and TSS three-level synchronous signal sequences.

As shown in Figure 7a, a subcarrier (the 7th son load is chosen in base station in second OFDM symbol of first resource Wave) mapping PBCH demodulated reference signal, at this point, terminal in combination with the demodulated reference signal of primary synchronization signal and PBCH to PBCH Carry out demodulation process.As shown in Figure 7b, a subcarrier (the 7th is chosen in base station in first OFDM symbol of first resource Subcarrier) mapping PBCH demodulated reference signal, at this point, demodulated reference signal pair of the terminal in combination with secondary synchronization signal and PBCH PBCH carries out demodulation process.

The transmission method of the demodulated reference signal of the embodiment of the present invention, in the target money that NR Physical Broadcast Channel PBCH is occupied In source, the demodulated reference signal of the PBCH of base station transmission is obtained;PBCH is solved according to the demodulated reference signal of the PBCH Reason is mediated, the transmitting of Physical Broadcast Channel is improved.

As shown in figure 8, the embodiments of the present invention also provide a kind of transmitting device of demodulated reference signal, it is applied to base It stands, including:

Mapping block 801, in the target resource that NR Physical Broadcast Channel PBCH is occupied of newly eating dishes without rice or wine, being answered using the time-division With and/or the mode of frequency division multiplexing map the demodulated reference signal of PBCH;

Transmission module 802, for the resource for being mapped with the demodulated reference signal of PBCH to be sent to terminal.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, the mapping block 801 include:

Determination sub-module, in the total resources that NR PBCH are occupied, determining first resource;Wherein, the total resources exist M subcarrier is corresponded on frequency domain, corresponds to L OFDM symbol in the time domain, and the first resource corresponds to N number of sub- load on frequency domain Wave corresponds to L OFDM symbol in the time domain, and N is less than M, and M is the integral multiple of N, and M, N and L are positive integer;

Mapping submodule, in the first resource, mapping institute by the way of time division multiplexing and/or frequency division multiplexing State the demodulated reference signal of PBCH;

Expansion module, for by the demodulated reference signal in the first resource, the second money to be expanded to by predetermined manner In source, the Secondary resource is the resource in addition to the first resource in the total resources.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, the determination sub-module include:

First selection unit, in L OFDM symbol of the first resource, choosing one for mapping PBCH's The target OFDM symbol of demodulated reference signal;

Second selection unit, in N number of subcarrier of the target OFDM symbol, choosing at least one subcarrier and reflecting Penetrate the demodulated reference signal of the PBCH.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, the determination sub-module include:

Third selection unit, in N number of subcarrier of each OFDM symbol of the first resource, choosing one respectively The demodulated reference signal of PBCH described in a subcarrier maps.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, demodulated reference signal institute in the L OFDM symbol The subcarrier of occupancy has identical or different frequency domain resource.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, the determination sub-module are used for respectively described first In N number of subcarrier of each OFDM symbol of resource, the demodulated reference signal of PBCH described in multiple subcarrier maps is chosen;Or

For in N number of subcarrier of the first OFDM symbol of the first resource, choosing described in a subcarrier maps The demodulated reference signal of PBCH, and in N number of subcarrier of the second OFDM symbol of the first resource, choose multiple subcarriers Map the demodulated reference signal of the PBCH.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, in the target money that NR Physical Broadcast Channel PBCH is occupied In source, the demodulated reference signal of PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing;The demodulation of PBCH will be mapped with The target resource of reference signal is sent to terminal, and the embodiment of the present invention is occupied by the NR Physical Broadcast Channel PBCH that newly eats dishes without rice or wine Resource the demodulated reference signal of PBCH is sent to terminal, realize the transmission of the demodulated reference signal of PBCH in NR systems.

It should be noted that the transmitting device of the demodulated reference signal is the transmission method phase with above-mentioned demodulated reference signal Corresponding device, all realization methods can also reach suitable for the embodiment of the device wherein in above method embodiment Same technique effect.

In some embodiments of the invention, as shown in figure 9, additionally providing a kind of base station, including first memory 920, It first processor 900, the first transceiver 910, bus interface and is stored on first memory 920 and can be in first processor The computer program run on 900, the first processor 900 are used to read the program in first memory 920, execute following Process:

In the target resource that NR Physical Broadcast Channel PBCH is occupied, by the way of time division multiplexing and/or frequency division multiplexing Map the demodulated reference signal of PBCH;The target resource for the demodulated reference signal for being mapped with PBCH is sent to terminal.

Wherein, in fig.9, bus architecture may include the bus and bridge of any number of interconnection, specifically by the first processing The various circuits for the memory that the one or more processors and first memory 920 that device 900 represents represent link together.Always Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked at one by line architecture It rises, these are all it is known in the art, and therefore, it will not be further described herein.Bus interface provides interface.The One transceiver 910 can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium with it is various other The unit of device communication.First processor 900 is responsible for bus architecture and common processing, and first memory 920 can be deposited Store up the used data when executing operation of first processor 900.

First processor 900 is additionally operable in the target resource that NR Physical Broadcast Channel PBCH is occupied, and determines first resource; Wherein, the target resource corresponds to M subcarrier on frequency domain, corresponds to L OFDM symbol in the time domain, and the first resource exists N number of subcarrier is corresponded on frequency domain, corresponds to L OFDM symbol in the time domain, and N is less than M, and M is the integral multiple of N, and M, N and L are Positive integer;In the first resource, the demodulation reference of the PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing Signal;It by the demodulated reference signal in the first resource, is expanded in Secondary resource by predetermined manner, the Secondary resource For the resource in the target resource in addition to the first resource.

First processor 900 is additionally operable in L OFDM symbol of the first resource, chooses one for mapping PBCH Demodulated reference signal target OFDM symbol;In N number of subcarrier of the target OFDM symbol, at least one sub- load is chosen Wave maps the demodulated reference signal of the PBCH.

First processor 900 is additionally operable to respectively in N number of subcarrier of each OFDM symbol of the first resource, is chosen The demodulated reference signal of PBCH described in one subcarrier maps.

First processor 900 is additionally operable to respectively in N number of subcarrier of each OFDM symbol of the first resource, is chosen The demodulated reference signal of PBCH described in multiple subcarrier maps;Or N number of son of the first OFDM symbol in the first resource In carrier wave, the demodulated reference signal of PBCH described in a subcarrier maps is chosen, and accord in the 2nd OFDM of the first resource Number N number of subcarrier in, choose the demodulated reference signal of PBCH described in multiple subcarrier maps.

In some embodiments of the invention, a kind of computer readable storage medium is additionally provided, calculating is stored thereon with Machine program, the program realize following steps when being executed by processor:

In the resource that NR Physical Broadcast Channel PBCH is occupied, in the target resource that NR Physical Broadcast Channel PBCH is occupied In, the demodulated reference signal of PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing;The demodulation ginseng of PBCH will be mapped with The target resource for examining signal is sent to terminal.

In some embodiments of the invention, as shown in Figure 10, a kind of transmitting device of demodulated reference signal is additionally provided, Applied to terminal, including:

Acquisition module 1001, in the target resource that NR Physical Broadcast Channel PBCH is occupied, obtaining base station transmission The demodulated reference signal of PBCH, the demodulated reference signal are mapped in described by the way of time division multiplexing and/or frequency division multiplexing In target resource;

Demodulation module 1002, for carrying out demodulation process to PBCH according to the demodulated reference signal of the PBCH.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, the demodulation module 1002 are used for according to the PBCH Demodulated reference signal and synchronous signal sequence, to the PBCH carry out demodulation process.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, the synchronous signal sequence include:Primary synchronization signal At least one of PSS sequences, secondary synchronization signal SSS sequences and TSS three-level synchronous signal sequences.

The transmitting device of the demodulated reference signal of the embodiment of the present invention, base station use time division multiplexing and/or frequency division multiplexing The demodulated reference signal of PBCH is embedded in the target resource that NR Physical Broadcast Channel PBCH is occupied by mode, and will be mapped with The resource of the demodulated reference signal of PBCH is sent to terminal so that terminal can carry out channel by the joint of frequency domain and time domain and estimate Meter, can more acurrate completions channel frequency deviation and Phase Tracking, and then raising Physical Broadcast Channel transmitting.

It should be noted that the transmitting device of the demodulated reference signal is the transmission method phase with above-mentioned demodulated reference signal Corresponding device, all realization methods can also reach suitable for the embodiment of the device wherein in above method embodiment Same technique effect.

In some embodiments of the invention, referring to Fig.1 shown in 1, a kind of terminal, including second memory are additionally provided 1120, second processor 1100, the second transceiver 1110, user interface 1130, bus interface and it is stored in second memory On 1120 and the computer program that can be run in second processor 1100, the second processor 1100 are deposited for reading second Program in reservoir 1120 executes following process:

In the target resource that NR Physical Broadcast Channel PBCH is occupied, the demodulation reference letter of the PBCH of base station transmission is obtained Number, the demodulated reference signal is mapped in by the way of time division multiplexing and/or frequency division multiplexing in the target resource;According to institute The demodulated reference signal for stating PBCH carries out demodulation process to PBCH.

Wherein, in fig. 11, bus architecture may include the bus and bridge of any number of interconnection, specifically by second processing The various circuits for the memory that the one or more processors and second memory 1120 that device 1100 represents represent link together. Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked at one by bus architecture It rises, these are all it is known in the art, and therefore, it will not be further described herein.Bus interface provides interface.The Two transceivers 1110 can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium with it is various its The unit of his device communication.For different user equipmenies, user interface 1130, which can also be external to be inscribed, needs equipment Interface, the equipment of connection includes but not limited to keypad, display, loud speaker, microphone, control stick etc..

Second processor 1100 is responsible for bus architecture and common processing, and second memory 1120 can store second The used data when executing operation of processor 1100.

Second processor 1100 is additionally operable to demodulated reference signal and synchronous signal sequence according to the PBCH, to described PBCH carries out demodulation process.

In some embodiments of the invention, a kind of computer readable storage medium is additionally provided, calculating is stored thereon with Machine program, the program realize following steps when being executed by processor:

In the resource that NR Physical Broadcast Channel PBCH is occupied, the demodulated reference signal of the PBCH of base station transmission, institute are obtained It states demodulated reference signal and is mapped in the money that the NR Physical Broadcast Channel occupies by the way of time division multiplexing and/or frequency division multiplexing In source;Demodulation process is carried out to PBCH according to the demodulated reference signal of the PBCH.

In various embodiments of the present invention, it should be appreciated that size of the sequence numbers of the above procedures is not meant to execute suitable The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.

The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (20)

1. a kind of transmission method of demodulated reference signal is applied to base station, which is characterized in that including:
In the target resource that NR Physical Broadcast Channel PBCH is occupied of newly eating dishes without rice or wine, using time division multiplexing and/or the side of frequency division multiplexing Formula maps the demodulated reference signal of PBCH;
The target resource for the demodulated reference signal for being mapped with PBCH is sent to terminal.
2. the transmission method of demodulated reference signal according to claim 1, which is characterized in that in new NR physical broadcasts of eating dishes without rice or wine In the target resource that channel PBCH is occupied, the demodulation reference letter of PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing Number the step of include:
In the target resource that NR PBCH are occupied, first resource is determined;Wherein, the target resource corresponds to M son on frequency domain Carrier wave, corresponds to L OFDM symbol in the time domain, and the first resource corresponds to N number of subcarrier on frequency domain, corresponds to L in the time domain A OFDM symbol, N are less than M, and M is the integral multiple of N, and M, N and L are positive integer;
In the first resource, the demodulation reference letter of the PBCH is mapped by the way of time division multiplexing and/or frequency division multiplexing Number;
It by the demodulated reference signal in the first resource, is expanded in Secondary resource by predetermined manner, the Secondary resource For the resource in the target resource in addition to the first resource.
3. the transmission method of demodulated reference signal according to claim 2, which is characterized in that in the first resource, The step of demodulated reference signal that the PBCH is mapped by the way of frequency division multiplexing includes:
In L OFDM symbol of the first resource, the target of a demodulated reference signal for mapping PBCH is chosen OFDM symbol;
In N number of subcarrier of the target OFDM symbol, the demodulation reference of PBCH described at least one subcarrier maps is chosen Signal.
4. the transmission method of demodulated reference signal according to claim 2, which is characterized in that in the first resource, The step of mapping the demodulated reference signal of PBCH using time-multiplexed mode include:
Respectively in N number of subcarrier of each OFDM symbol of the first resource, PBCH described in a subcarrier maps is chosen Demodulated reference signal.
5. the transmission method of demodulated reference signal according to claim 4, which is characterized in that in the L OFDM symbol The occupied subcarrier of demodulated reference signal has identical or different frequency domain resource.
6. the transmission method of demodulated reference signal according to claim 2, which is characterized in that in the first resource, Using time division multiplexing and frequency division multiplexing by the way of map the demodulated reference signal of PBCH the step of include:
Respectively in N number of subcarrier of each OFDM symbol of the first resource, PBCH described in multiple subcarrier maps is chosen Demodulated reference signal;Or
In N number of subcarrier of the first OFDM symbol of the first resource, the solution of PBCH described in a subcarrier maps is chosen Reference signal is adjusted, and in N number of subcarrier of the second OFDM symbol of the first resource, is chosen described in multiple subcarrier maps The demodulated reference signal of PBCH.
7. a kind of transmitting device of demodulated reference signal is applied to base station, which is characterized in that including:
Mapping block, in the target resource that NR Physical Broadcast Channel PBCH is occupied of newly eating dishes without rice or wine, using time division multiplexing and/or The mode of frequency division multiplexing maps the demodulated reference signal of PBCH;
Transmission module, for the target resource for being mapped with the demodulated reference signal of PBCH to be sent to terminal.
8. transmitting device according to claim 7, which is characterized in that the mapping block includes:
Determination sub-module, in the target resource that NR PBCH are occupied, determining first resource;Wherein, the target resource exists M subcarrier is corresponded on frequency domain, corresponds to L OFDM symbol in the time domain, and the first resource corresponds to N number of sub- load on frequency domain Wave corresponds to L OFDM symbol in the time domain, and N is less than M, and M is the integral multiple of N, and M, N and L are positive integer;
Mapping submodule, it is described in the first resource, being mapped by the way of time division multiplexing and/or frequency division multiplexing The demodulated reference signal of PBCH;
Expansion module, for by the demodulated reference signal in the first resource, being expanded in Secondary resource by predetermined manner, The Secondary resource is the resource in addition to the first resource in the target resource.
9. transmitting device according to claim 8, which is characterized in that the determination sub-module includes:
First selection unit, in L OFDM symbol of the first resource, choosing a demodulation for mapping PBCH The target OFDM symbol of reference signal;
Second selection unit, in N number of subcarrier of the target OFDM symbol, choosing at least one subcarrier maps institute State the demodulated reference signal of PBCH.
10. transmitting device according to claim 8, which is characterized in that the determination sub-module includes:
Third selection unit, in N number of subcarrier of each OFDM symbol of the first resource, choosing a son respectively Carrier wave maps the demodulated reference signal of the PBCH.
11. transmitting device according to claim 10, which is characterized in that demodulated reference signal in the L OFDM symbol Occupied subcarrier has identical or different frequency domain resource.
12. transmitting device according to claim 8, which is characterized in that the determination sub-module is for respectively described the In N number of subcarrier of each OFDM symbol of one resource, the demodulated reference signal of PBCH described in multiple subcarrier maps is chosen;Or Person
For in N number of subcarrier of the first OFDM symbol of the first resource, choosing PBCH described in a subcarrier maps Demodulated reference signal, and in N number of subcarrier of the second OFDM symbol of the first resource, choose multiple subcarrier maps The demodulated reference signal of the PBCH.
13. a kind of base station, including first memory, first processor and storage are on the first memory and can be in first processor The computer program of upper operation, which is characterized in that realized when the first processor executes the computer program as right is wanted Seek the step in the transmission method of any one of 1-6 demodulated reference signals.
14. a kind of transmission method of demodulated reference signal is applied to terminal, which is characterized in that including:
In the target resource that NR Physical Broadcast Channel PBCH is occupied, the demodulated reference signal of the PBCH of base station transmission, institute are obtained Demodulated reference signal is stated to be mapped in the target resource by the way of time division multiplexing and/or frequency division multiplexing;
Demodulation process is carried out to PBCH according to the demodulated reference signal of the PBCH.
15. the transmission method of demodulated reference signal according to claim 14, which is characterized in that described according to the PBCH Demodulated reference signal to PBCH carry out demodulation process the step of include:
According to the demodulated reference signal and synchronous signal sequence of the PBCH, demodulation process is carried out to the PBCH.
16. the transmission method of demodulated reference signal according to claim 15, which is characterized in that the synchronous signal sequence Including:At least one of primary synchronization signal PSS sequences, secondary synchronization signal SSS sequences and TSS three-level synchronous signal sequences.
17. a kind of transmitting device of demodulated reference signal is applied to terminal, which is characterized in that including:
Acquisition module, the solution of the PBCH in the target resource that NR Physical Broadcast Channel PBCH is occupied, obtaining base station transmission Reference signal, the demodulated reference signal is adjusted to be mapped in the target resource by the way of time division multiplexing and/or frequency division multiplexing In;
Demodulation module, for carrying out demodulation process to PBCH according to the demodulated reference signal of the PBCH.
18. transmitting device according to claim 17, which is characterized in that the demodulation module is used for according to the PBCH's Demodulated reference signal and synchronous signal sequence carry out demodulation process to the PBCH.
19. transmitting device according to claim 18, which is characterized in that the synchronous signal sequence includes:Main synchronous letter At least one of number PSS sequences, secondary synchronization signal SSS sequences and TSS three-level synchronous signal sequences.
20. a kind of terminal, including second memory, second processor and it is stored on second memory and can be in second processor The computer program of upper operation, which is characterized in that realized when the second processor executes the computer program as right is wanted Seek the step in the transmission method of any one of 14-16 demodulated reference signals.
CN201710309296.9A 2017-05-04 2017-05-04 A kind of transmission method of demodulated reference signal, device, base station and terminal CN108809877A (en)

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