CN109673049A - A kind of transmission method, base station and the user terminal of PBCH signal - Google Patents
A kind of transmission method, base station and the user terminal of PBCH signal Download PDFInfo
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- CN109673049A CN109673049A CN201710953672.8A CN201710953672A CN109673049A CN 109673049 A CN109673049 A CN 109673049A CN 201710953672 A CN201710953672 A CN 201710953672A CN 109673049 A CN109673049 A CN 109673049A
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- ofdm symbol
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
Abstract
The embodiment of the present invention provides transmission method, base station and the user terminal of a kind of PBCH signal, this method comprises: the frequency resource not occupied by the SSS in the OFDM symbol that SSS is occupied transmits PBCH signal to user terminal, wherein, it is described that the DMRS of PBCH is not mapped by the frequency resource that the SSS is occupied or described is not mapped with the DMRS sequence initialized by cell ID by the SSS frequency resource occupied；PBCH signal is transmitted to the user terminal at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS.The embodiment of the present invention can promote the transmission performance of PBCH.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of Physical Broadcast Channel (Physical Broadcast
Channel, PBCH) signal transmission method, base station and user terminal.
Background technique
Synchronization signal block (Synchronization Signal block, SS block) may include in a communications system
Primary synchronization signal (Primary Synchronization Signal, PSS), secondary synchronization signal (Secondary
Synchronization Signal, SSS) and Physical Broadcast Channel (Physical Broadcast Channel, PBCH) letter
Number.Wherein, SS block purposes is that user terminal obtains timing by PSS, obtains cell ID by SSS, and pass through PBCH
Signal acquisition part minimum system information.However, possible to the performance of SS block in (New Radio, NR) system of newly eating dishes without rice or wine
It may require that higher, how to improve the transmission performance of PBCH signal in this way is current to be badly in need of technical problems to be solved.
Summary of the invention
The embodiment of the present invention provides transmission method, base station and the user terminal of a kind of PBCH signal, to solve how to improve
The problem of transmission performance of PBCH signal.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows: a kind of transmission method of PBCH signal, comprising:
SSS occupy orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing,
OFDM) frequency resource not occupied by the SSS on symbol transmits PBCH signal to user terminal, wherein described not described
SSS occupy frequency resource do not map PBCH demodulated reference signal (Demodulation Reference Signal,
DMRS described it is not mapped with) or by the SSS frequency resource occupied the DMRS sequence initialized by cell ID；
It is transmitted at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS to the user terminal
PBCH signal.
Second aspect, the embodiment of the invention provides a kind of transmission methods of PBCH signal, comprising:
The frequency resource not occupied by the SSS in the OFDM symbol that SSS is occupied receives the PBCH signal that base station is transmitted,
Wherein, described that the demodulated reference signal DMRS of PBCH or described not by institute is not mapped by the frequency resource that the SSS is occupied
The frequency resource for stating SSS occupancy is mapped with the DMRS sequence initialized by cell ID；
The base station transmission PBCH is received at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
Signal.
The third aspect, the embodiment of the invention provides a kind of base stations, comprising:
First transmission module, frequency resource for not occupied by the SSS in the OFDM symbol that SSS is occupied is to user
Terminal transmission PBCH signal, wherein described that the DMRS of PBCH or described is not mapped by the frequency resource that the SSS is occupied
The DMRS sequence initialized by cell ID is not mapped with by the SSS frequency resource occupied；
Second transmission module, at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS to
The user terminal transmits PBCH signal.
Fourth aspect, the embodiment of the invention provides a kind of user terminals, comprising:
First receiving module, the frequency resource for not occupied by the SSS in the OFDM symbol that SSS is occupied receive base
Stand transmission PBCH signal, wherein the demodulated reference signal for not mapped PBCH by the frequency resource that the SSS is occupied
DMRS described is not mapped with the DMRS sequence initialized by cell ID by the SSS frequency resource occupied；
Second receiving module connects at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
Receive the base station transmission PBCH signal.
5th aspect, the embodiment of the invention provides a kind of base stations, comprising: memory, processor and is stored in described deposit
On reservoir and the computer program that can run on the processor, the computer program are realized when being executed by the processor
Step in the transmission method of the PBCH signal of base station side provided in an embodiment of the present invention.
6th aspect, the embodiment of the invention provides a kind of user terminals, comprising: memory, processor and is stored in institute
The computer program that can be run on memory and on the processor is stated, when the computer program is executed by the processor
Realize the step in the transmission method of the PBCH signal of subscriber terminal side provided in an embodiment of the present invention.
7th aspect, the embodiment of the invention provides a kind of computer readable storage medium, the computer-readable storage
Computer program is stored on medium, the computer program realizes base station provided in an embodiment of the present invention when being executed by processor
The step of transmission method of the PBCH signal of side.
Eighth aspect, the embodiment of the invention provides a kind of computer readable storage medium, the computer-readable storage
Computer program is stored on medium, the computer program realizes base station provided in an embodiment of the present invention when being executed by processor
The step of transmission method of the PBCH signal of side.
In embodiments of the present invention, in the OFDM symbol that SSS is occupied the frequency resource that is not occupied by the SSS to user
Terminal transmission PBCH signal, wherein described that the DMRS of PBCH or described is not mapped by the frequency resource that the SSS is occupied
The DMRS sequence initialized by cell ID is not mapped with by the SSS frequency resource occupied；It is occupied except the SSS
OFDM symbol except at least one OFDM symbol on to the user terminal transmit PBCH signal.Due to what is occupied in SSS
PBCH is transmitted in OFDM symbol, and can not map the DMRS of PBCH, or be mapped with and initialized by cell ID
DMRS improves the transmission performance of PBCH so as to realize the transmission for being used for PBCH using more resources.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structure chart of the Transmission system of PBCH signal provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the transmission method of PBCH signal provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram for the frequency resource that a kind of SSS provided in an embodiment of the present invention is occupied；
Fig. 4 is the schematic diagram that a kind of SS block provided in an embodiment of the present invention occupies resource；
Fig. 5 is the schematic diagram of the transmission method of another kind PBCH signal provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram that a kind of PBCH provided in an embodiment of the present invention occupies resource；
Fig. 7 is the schematic diagram of the transmission method of another kind PBCH signal provided in an embodiment of the present invention；
Fig. 8 is a kind of structure chart of base station provided in an embodiment of the present invention；
Fig. 9 is a kind of structure chart of user terminal provided in an embodiment of the present invention；
Figure 10 is the structure chart of another user terminal provided in an embodiment of the present invention；
Figure 11 is the structure chart of another user terminal provided in an embodiment of the present invention；
Figure 12 is the structure chart of another user terminal provided in an embodiment of the present invention；
Figure 13 is the structure chart of another user terminal provided in an embodiment of the present invention；
Figure 14 is the structure chart of another base station provided in an embodiment of the present invention；
Figure 15 is the structure chart of another user terminal provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It is a kind of structure chart of the Transmission system of PBCH signal provided in an embodiment of the present invention referring to Fig. 1, Fig. 1, such as Fig. 1 institute
Showing, including user terminal 11 and base station 12, wherein user terminal 11 can be UE (User Equipment), such as: it can be
Mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), individual digital
Assistant (personal digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device,
MID) or the terminal side equipments such as wearable device (Wearable Device), it should be noted that in embodiments of the present invention
The concrete type of user terminal 11 is not limited.Above-mentioned base station 12 can be the base station 5G (such as: gNB, 5G NRNB), need
It is bright, the concrete type of base station 12 is not limited in embodiments of the present invention.
It should be noted that above-mentioned user terminal 11 and the concrete function of base station 12 will be carried out by following multiple embodiments
It specifically describes.
Fig. 2 is referred to, Fig. 2 is a kind of schematic diagram of the transmission method of PBCH signal provided in an embodiment of the present invention, the party
Method is applied to base station, as shown in Figure 2, comprising the following steps:
Step 201, the frequency resource not occupied by the SSS in the OFDM symbol that SSS is occupied are transmitted to user terminal
PBCH signal, wherein described that the DMRS of PBCH or described not described is not mapped by the frequency resource that the SSS is occupied
The frequency resource that SSS is occupied is mapped with the DMRS sequence initialized by cell ID.
Wherein, the OFDM symbol that above-mentioned SSS is occupied can be some OFDM in the time-domain resource of SS block occupancy
Symbol, such as: the 3rd OFDM symbol in time-domain resource that SS block is occupied.In addition, SSS is only accounted in the embodiment of the present invention
With the part frequency domain resource in OFDM symbol, such as: as shown in figure 3, SSS occupies 127 continuous subcarriers, specifically can only account for
With the sub-carrier resources of 10 PRB length complete in 1 OFDM symbol, and the adjacent son load in these subcarrier two sides
It shows in 3 and 4 subcarriers respectively in wave resource and penetrates SSS.
Since SSS only takes up part frequency domain resource, so as to by the frequency resource not occupied by the SSS to user
Terminal transmission PBCH signal.Such as: as shown in Figure 4, wherein Fig. 4 transmits PSS, the 2nd OFDM symbol with first OFDM symbol
SSS and the 4th transmission PBCH signal, the 3rd OFDM symbol transmission OFDM symbol transmission PBCH signal are illustrated, wherein the 3rd
Also transmission has PBCH signal in a OFDM symbol.
Wherein, above-mentioned that the DMRS of PBCH is not mapped by the frequency resource that the SSS is occupied it is to be understood that in these frequencies
DMRS is not transmitted in the resource of domain.And above by the cell ID DMRS sequence initialized it is to be understood that DMRS sequence into
Cell ID is used when row initialization, and unused time information, i.e. the DMRS sequence are unrelated with temporal information, or when not carrying
Between information, it is only related with cell ID.
It is step 202, whole to the user at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
End transmission PBCH signal.
It should be noted that being not construed as limiting to the execution sequence of step 201 and step 202, example in the embodiment of the present invention
Such as: can be and first carry out step 201, then execute step 202, as shown in Fig. 2, can be the portion first carried out in step 202
Point operation (such as: in the 2nd OFDM symbol transmit PBCH signal), then execute step 201 and send the 3rd OFDM symbol, then
The operation of execution step 202 remainder (such as: PBCH signal is transmitted in the 4th OFDM symbol), to this embodiment of the present invention
It is not construed as limiting.
At least one above-mentioned OFDM symbol can be the continuous OFDM symbol of OFDM symbol occupied with SSS, such as: SS
Continuous 4 OFDM symbols that block is occupied, then at least one OFDM symbol can be the 2nd and the 4th OFDM symbol, and SSS
The OFDM symbol of occupancy is the 3rd OFDM symbol.
Through the above steps, in the DMRS not by frequency resource that the SSS is occupied since PBCH can not be mapped, thus
Transmission of more resources for PBCH may be implemented, improve the transmission performance of PBCH.
In addition, not initialized due to that can also be mapped with by cell ID by the frequency resource that the SSS is occupied
DMRS sequence, such user terminal can be used the DMRS sequence not received by the SSS frequency resource occupied into
Row channel estimation obtains DMRS channel estimation value, carries out channel estimation using the SSS received, obtains SSS channel estimation
Value；And the DMRS channel estimation value and the SSS channel estimation value are used, to the DMRS at least one described OFDM symbol
Sequence carries out relevant detection, obtains the temporal information of the DMRS sequence at least one described OFDM symbol.Due to it is above-mentioned extremely
DMRS sequence in a few OFDM symbol carries out relevant detection, so as to promoted carrying temporal information detection performance.
It should be noted that the above method can be applied to 5G NR system, but this is not construed as limiting, such as: it can also answer
For following 6G system etc..
It should be noted that then SSS can be referred to as NR SSS, and PSS can claim since the above method can apply NR system
Make NR PSS, PBCH can be referred to as NR PBCH.
In embodiments of the present invention, in the OFDM symbol that SSS is occupied the frequency resource that is not occupied by the SSS to user
Terminal transmission PBCH signal, wherein described that the DMRS of PBCH or described is not mapped by the frequency resource that the SSS is occupied
The DMRS sequence initialized by cell ID is not mapped with by the SSS frequency resource occupied；It is occupied except the SSS
OFDM symbol except at least one OFDM symbol on to the user terminal transmit PBCH signal.Due to what is occupied in SSS
PBCH is transmitted in OFDM symbol, and can not map the DMRS of PBCH, or be mapped with and initialized by cell ID
DMRS improves the transmission performance of PBCH so as to realize the transmission for being used for PBCH using more resources.
Fig. 5 is referred to, Fig. 5 is the schematic diagram of the transmission method of another kind PBCH signal provided in an embodiment of the present invention, should
Method is applied to base station, as shown in Figure 5, comprising the following steps:
Step 501, the frequency resource not occupied by the SSS in the OFDM symbol that SSS is occupied are transmitted to user terminal
PBCH signal, wherein described that the DMRS of PBCH or described not described is not mapped by the frequency resource that the SSS is occupied
The frequency resource that SSS is occupied is mapped with the DMRS sequence initialized by cell ID.
Optionally, described not include: by the SSS frequency resource occupied
The Physical Resource Block (Physical Resource Block, PRB) not occupied by the SSS；And/or
The resource element (Resource Element, RE) not occupied by the SSS in PRB that the SSS is occupied.
In the embodiment, the unappropriated PRB of SSS may be implemented and transmitted for PBCH, and the PRB occupied by the SSS
It can be used for PBCH transmission if there is unappropriated RE, to improve the transmission performance of PBCH.Such as: as shown in figure 3, left
PBCH transmission not can be used for by the SSS RE occupied in two PRB in the right side.
Optionally, in the embodiment of the present invention, the RE resource that PBCH signal occupies can pass through first frequency direction, rear time side
To sequence mapped.
In the embodiment, PBCH signal may be implemented and pass through first frequency direction, the sequence of rear time orientation is mapped
To the 2nd, the 3rd and the 4th OFDM symbol, to improve PBCH signal transmission performance.Certainly, the embodiment of the present invention does not limit this
It is fixed, in some scenes, it is also possible to the mapping of frequency again of first time.
Optionally, described not described if described be not mapped with DMRS sequence by the SSS frequency resource occupied
Density of the DMRS sequence for the frequency resource mapping that SSS is occupied on PRB is 1/4.
Wherein, density of the above-mentioned DMRS sequence on PRB is 1/4 it is to be understood that having 1 RE by DMRS in every 4 RE
Sequence occupies, remaining 3 are occupied by PBCH.Further, the interval RE that DMRS sequence occupies is equal.In the embodiment, by
In density of the DMRS sequence on PRB be 1/4, so as to improve the conciliation performance of PBCH.Certainly, the embodiment of the present invention is right
This is not construed as limiting, such as: density of the DMRS sequence on PRB can be 1/3 or 1/5 etc. in some scenes.
Optionally, the initial position for the DMRS sequence that the frequency resource not occupied by the SSS maps with it is described small
Area ID is related.
Wherein, above-mentioned initial position can be starting subcarrier number, and above-mentioned initial position is related to the cell ID
It is to be understood that the initial position of DMRS sequence can be and be determined by cell ID, in this way can be accounted for reasonable distribution DMRS sequence
RE, to improve the demodulation performance of DMRS sequence.Such as: the DMRS that the above-mentioned frequency resource not occupied by the SSS maps
The initial position of sequence can be mod (cell ID, 4), wherein mod is MOD function, and cell ID is cell ID.With 1
Number in PRB is numbered from 0, number 0,1 ..., 11, then the initial position of above-mentioned DMRS sequence be mod (Cell ID,
4).In the embodiment, since the starting subcarrier number of DMRS sequence is mod (cell ID, 4), so as to reasonable distribution
The RE that DMRS sequence occupies, to improve the demodulation performance of DMRS sequence.
Step 502, the continuous frequency domain money at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
PBCH signal is transmitted to the user terminal in source.
Step 502 can be understood as the PBCH signal at least one described OFDM symbol and occupy continuous frequency domain resource.
Such as: SS Block occupies 20 PRB, then continuous 20 PRB of the PBCH in the 2nd and the 4th OFDM symbol of SS Block
Upper transmission.
It should be noted that step 502 is optional in the present embodiment, it can be understood as the restriction to step 202, example
As: discrete frequency domain resource that the PBCH signal at least one OFDM symbol described in some scenes occupies.
Optionally, DMRS sequence is mapped at least one described OFDM symbol, and at least one described OFDM symbol
Density of the DMRS sequence of mapping in the PRB that PBCH signal occupies is 1/4, is mapped at least one described OFDM symbol
DMRS sequence is initialized by cell ID and temporal information.
In the embodiment, at least one OFDM symbol (such as: the 2nd and the 4th OFDM symbol) mapping may be implemented
DMRS sequence is to be initialized by cell ID and temporal information, and the density in the PRB that PBCH signal occupies is 1/
4.Such as: as shown in fig. 6, thering is a RE to be occupied by DMRS sequence in every 4 RE.And since the DMRS sequence of mapping passes through cell
ID and temporal information are initialized, in this way can be effectively to user terminal transmission time information, to improve the transmission of PBCH
Performance.
Further, the DMRS sequence mapped at least one above-mentioned OFDM symbol can be through cell ID and 3 bits
Temporal information is initialized.Wherein, as a synchronization signal collection (SS burst set) maximum SS in the period (5ms)
When block number L=4,3 bit-time information be 2bit SS block time index (SS block time index) and
1bit half radio-frame indicates (half radio frame indication) information.If a synchronization signal collection (SS burst
Set when) maximum SS block number L is greater than 4 in the period (5ms), then 3 bit-time information are the SS block of 3bit
The low-order bit of time index.
It may be implemented to provide using the frequency not occupied by the SSS in the OFDM symbol that SSS is occupied through the above steps
PBCH signal is transmitted to user terminal in source, and does not map the DMRS of PBCH, so as to realize that more resources are used for transmission PBCH
Signal, to improve the transmission performance of PBCH signal.And user terminal can be used and receive at least one OFDM symbol
DMRS sequence carries out channel estimation, obtains channel estimation value, and do not accounted for by the SSS to described using the channel estimation value
Frequency resource is demodulated.Such as: channel estimation is carried out using the DMRS sequence that the 2nd and the 4th OFDM symbol receives,
Channel estimation value is obtained, the RE occupied of PBCH in the 3rd OFDM symbol is demodulated, specifically can be using the 2nd and the 4th
The weighted mean of the channel estimation value of the DMRS sequence of OFDM symbol solves the RE occupied of PBCH in the 3rd OFDM symbol
It adjusts, it is preferred that can be the Wiener filtering output valve using channel estimation value, the RE occupied to PBCH in the 3rd OFDM symbol
It is demodulated, to improve demodulation performance.
It may be implemented to be mapping through what cell ID was initialized in the OFDM symbol that SSS is occupied through the above steps
DMRS sequence, such user terminal can be used in the DMRS sequence not received by the SSS frequency resource occupied
Channel estimation is carried out, DMRS channel estimation value is obtained, channel estimation is carried out using the SSS received, obtains SSS channel and estimate
Evaluation；And the DMRS channel estimation value and the SSS channel estimation value are used, at least one described OFDM symbol
DMRS sequence carries out relevant detection, obtains the temporal information of the DMRS sequence at least one described OFDM symbol.
Wherein, above-mentioned to use the DMRS channel estimation value and the SSS channel estimation value, at least one described OFDM
DMRS sequence on symbol, which carries out relevant detection, can be the DMRS channel estimation value and SSS channel estimation value progress
Cascade obtains the channel estimation of complete bandwidth, and using the channel estimation of complete bandwidth at least one described OFDM symbol
DMRS sequence carry out relevant detection, obtain the temporal information of the DMRS sequence at least one described OFDM symbol.Due to being
By relevant detection, so as to promoted carrying temporal information detection performance.
In addition, user terminal can also carry out channel estimation according to the DMRS sequence at least one described OFDM symbol,
Obtain the channel estimation value at least one described OFDM symbol；And use the channel estimation at least one described OFDM symbol
Value demodulates the PBCH signal at least one described OFDM symbol；And the DMRS channel estimation value is used, described in demodulation
The PBCH signal in OFDM symbol that SSS is occupied.
User terminal may be implemented in this way and obtain above-mentioned DMRS sequence, such as: obtain the DMRS on the 2nd and the 4th symbol
Sequence to obtain the 2nd and the 4th symbol estimated value, and then is demodulated, and may be used also using corresponding channel estimation value
The DMRS channel estimation value on symbol to use SSS occupancy, the PBCH signal in OFDM symbol that demodulation SSS is occupied, to mention
The demodulation performance of high PBCH.
If described be not mapped with DMRS sequence by the SSS frequency resource occupied, due to the DMRS sequence and cell mark
Sensible pass, so that user terminal can also be used in the DMRS sequence not received by the SSS frequency resource occupied
Channel estimation is carried out, DMRS channel estimation value is obtained, channel estimation is carried out using the SSS received, obtains SSS channel and estimate
Evaluation；And the DMRS channel estimation value and the SSS channel estimation value are used, carry out wireless resource management (Radio
Resource Management, RRM) measurement.
It specifically can be and DMRS channel estimation value and the progress wireless resource management RRM survey of SSS channel estimation value be used in combination
Amount, such as: the two channel estimation values are cascaded, the channel estimation of complete bandwidth is obtained, the channel for reusing complete bandwidth is estimated
Meter carries out RRM measurement, to promote the effect of RRM measurement.
Fig. 7 is referred to, Fig. 7 is the schematic diagram of the transmission method of another kind PBCH signal provided in an embodiment of the present invention, should
Method is applied to user terminal, as shown in fig. 7, comprises following steps:
Step 701, the frequency resource not occupied by the SSS in the OFDM symbol that SSS is occupied receive what base station was transmitted
PBCH signal, wherein the demodulated reference signal DMRS for not mapped PBCH by the frequency resource that the SSS is occupied, or
It is described not to be mapped with the DMRS sequence initialized by cell ID by the SSS frequency resource occupied；
Step 702 receives the base station at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
Transmit PBCH signal.
Optionally, described not include: by the SSS frequency resource occupied
The PRB not occupied by the SSS；And/or
The RE not occupied by the SSS in PRB that the SSS is occupied.
Optionally, described in being received in described at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
After the step of PBCH signal, is transmitted in base station, the method also includes:
Channel estimation is carried out using the DMRS sequence received at least one OFDM symbol, obtains channel estimation value, and
It is not demodulated by the SSS frequency resource occupied using the channel estimation value to described.
Optionally, if described be not mapped with DMRS sequence by the SSS frequency resource occupied, and it is described at least one
The DMRS sequence initialized by cell ID and temporal information is mapped in OFDM symbol；
The base station transmission is received in described at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
After the step of PBCH signal, the method also includes:
Channel estimation is carried out using in the DMRS sequence not received by the SSS frequency resource occupied, is obtained
DMRS channel estimation value carries out channel estimation using the SSS received, obtains SSS channel estimation value；
Using the DMRS channel estimation value and the SSS channel estimation value, at least one described OFDM symbol
DMRS sequence carries out relevant detection, obtains the temporal information of the DMRS sequence at least one described OFDM symbol.
Optionally, using the DMRS channel estimation value and the SSS channel estimation value, at least one described OFDM is accorded with
DMRS sequence on number carries out relevant detection, obtains the step of the temporal information of the DMRS sequence at least one described OFDM symbol
After rapid, the method also includes:
Channel estimation is carried out according to the DMRS sequence at least one described OFDM symbol, obtains at least one described OFDM
Channel estimation value on symbol；
Using the channel estimation value at least one described OFDM symbol, demodulate at least one described OFDM symbol
PBCH signal；
Using the DMRS channel estimation value, the PBCH signal in the OFDM symbol that the SSS is occupied is demodulated.
Optionally, if described be not mapped with DMRS sequence by the SSS frequency resource occupied；
The base station transmission is received in described at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
After the step of PBCH signal, the method also includes:
Channel estimation is carried out using in the DMRS sequence not received by the SSS frequency resource occupied, is obtained
DMRS channel estimation value carries out channel estimation using the SSS received, obtains SSS channel estimation value；
Using the DMRS channel estimation value and the SSS channel estimation value, wireless resource management RRM measurement is carried out.
Optionally, the OFDM symbol that the SSS is occupied is the 3rd OFDM symbol in the time-domain resource that SS block is occupied
Number；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied
Number.
It should be noted that the present embodiment is as Fig. 2 to the embodiment party of the corresponding user terminal of embodiment shown in Fig. 3
Formula, specific embodiment may refer to Fig. 2 to embodiment related description shown in Fig. 3, and reach identical beneficial to effect
Fruit, in order to avoid repeated explanation, details are not described herein again.
Fig. 8 is referred to, Fig. 8 is a kind of structure chart of base station provided in an embodiment of the present invention, as shown in figure 8, base station 800 is wrapped
It includes:
First transmission module 801, frequency resource for not occupied by the SSS in the OFDM symbol that SSS is occupied to
User terminal transmits PBCH signal, wherein the DMRS for not mapped PBCH by the frequency resource that the SSS is occupied, or
It is described not to be mapped with the DMRS sequence initialized by cell ID by the SSS frequency resource occupied；
Second transmission module 802, at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
PBCH signal is transmitted to the user terminal.
Optionally, described not include: by the SSS frequency resource occupied
The Physical Resource Block PRB not occupied by the SSS；And/or
The RE not occupied by the SSS in PRB that the SSS is occupied.
Optionally, the initial position for the DMRS sequence that the frequency resource not occupied by the SSS maps with it is described small
Area ID is related.
Optionally, DMRS sequence is mapped at least one described OFDM symbol, and at least one described OFDM symbol
Density of the DMRS sequence of mapping in the PRB that PBCH signal occupies is 1/4, is mapped at least one described OFDM symbol
DMRS sequence is initialized by cell ID and temporal information.
Optionally, the OFDM symbol that the SSS is occupied is the 3 in the time-domain resource that synchronization signal block SS block is occupied
A OFDM symbol；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied
Number.
Optionally, the PBCH signal at least one described OFDM symbol occupies continuous frequency domain resource.
Base station provided in an embodiment of the present invention can be realized each mistake that base station is realized in the embodiment of the method for Fig. 2 to Fig. 5
Journey, to avoid repeating, which is not described herein again, and can reduce the expense of the time-domain position of configuration CSI-RS.
Fig. 9 is referred to, Fig. 9 is a kind of structure chart of user terminal provided in an embodiment of the present invention, as shown in figure 9, user
Terminal 900 includes:
First receiving module 901, for not connect by the SSS frequency resource occupied in the OFDM symbol that SSS is occupied
Receive the PBCH signal of base station transmission, wherein described not believed by the demodulation reference that the frequency resource that the SSS is occupied does not map PBCH
Number DMRS described is not mapped with the DMRS sequence initialized by cell ID by the SSS frequency resource occupied；
Second receiving module 902, at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
Receive the base station transmission PBCH signal.
Optionally, described not include: by the SSS frequency resource occupied
The PRB not occupied by the SSS；And/or
The RE not occupied by the SSS in PRB that the SSS is occupied.
Optionally, as shown in Figure 10, the user terminal 900 further include:
First demodulation module 903 is estimated for carrying out channel using the DMRS sequence received at least one OFDM symbol
Meter, obtains channel estimation value, and do not solved by the SSS frequency resource occupied to described using the channel estimation value
It adjusts.
Optionally, if described be not mapped with DMRS sequence by the SSS frequency resource occupied, and it is described at least one
The DMRS sequence initialized by cell ID and temporal information is mapped in OFDM symbol；
As shown in figure 11, the user terminal 900 further include:
First estimation mould 904, for using in the DMRS sequence not received by the SSS frequency resource occupied
Channel estimation is carried out, DMRS channel estimation value is obtained, channel estimation is carried out using the SSS received, obtains SSS channel and estimate
Evaluation；
Detection module 905, for use the DMRS channel estimation value and the SSS channel estimation value, to it is described at least
DMRS sequence in one OFDM symbol carries out relevant detection, obtain the DMRS sequence at least one described OFDM symbol when
Between information.
Optionally, as shown in figure 12, the user terminal 900 further include:
Second estimation module 906, for carrying out channel estimation according to the DMRS sequence at least one described OFDM symbol,
Obtain the channel estimation value at least one described OFDM symbol；
Second demodulation module 907, for using the channel estimation value at least one described OFDM symbol, demodulation is described extremely
PBCH signal in a few OFDM symbol；
Third demodulation module 908 demodulates the OFDM symbol that the SSS is occupied for using the DMRS channel estimation value
On PBCH signal.
Optionally, if described be not mapped with DMRS sequence by the SSS frequency resource occupied；
As shown in figure 13, the user terminal 900 further include:
Third estimation module 909, for using in the DMRS sequence not received by the SSS frequency resource occupied
Column carry out channel estimation, obtain DMRS channel estimation value, carry out channel estimation using the SSS received, obtain SSS channel
Estimated value；
Measurement module 9010 is wirelessly provided for using the DMRS channel estimation value and the SSS channel estimation value
Source control RRM measurement.
Optionally, the OFDM symbol that the SSS is occupied is the 3rd OFDM symbol in the time-domain resource that SS block is occupied
Number；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied
Number.
Terminal provided in an embodiment of the present invention can be realized each mistake that user terminal is realized in the embodiment of the method for Fig. 7
Journey, to avoid repeating, which is not described herein again, and can reduce the expense of the time-domain position of configuration CSI-RS.
It is the structure chart of another base station provided in an embodiment of the present invention, as shown in figure 14, the base station referring to Figure 14, Figure 14
1400 include: processor 1401, transceiver 1402, memory 1403 and bus interface, in which:
Wherein, transceiver 1402, frequency resource for not occupied by the SSS in the OFDM symbol that SSS is occupied to
User terminal transmits PBCH signal, wherein the DMRS for not mapped PBCH by the frequency resource that the SSS is occupied, or
It is described not to be mapped with the DMRS sequence initialized by cell ID by the SSS frequency resource occupied；Removing the SSS
PBCH signal is transmitted to the user terminal at least one OFDM symbol except the OFDM symbol of occupancy.
Optionally, described not include: by the SSS frequency resource occupied
The Physical Resource Block PRB not occupied by the SSS；And/or
The RE not occupied by the SSS in PRB that the SSS is occupied.
Optionally, the initial position for the DMRS sequence that the frequency resource not occupied by the SSS maps with it is described small
Area ID is related.
Optionally, DMRS sequence is mapped at least one described OFDM symbol, and at least one described OFDM symbol
Density of the DMRS sequence of mapping in the PRB that PBCH signal occupies is 1/4, is mapped at least one described OFDM symbol
DMRS sequence is initialized by cell ID and temporal information.
Optionally, the OFDM symbol that the SSS is occupied is the 3 in the time-domain resource that synchronization signal block SS block is occupied
A OFDM symbol；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied
Number.
Optionally, the PBCH signal at least one described OFDM symbol occupies continuous frequency domain resource.
Wherein, transceiver 1402, for sending and receiving data, the transceiver 1402 under the control of processor 1401
Including at least two antenna ports.
In Figure 14, bus architecture may include the bus and bridge of any number of interconnection, specifically by 1401 generation of processor
The various circuits for the memory that the one or more processors and memory 1403 of table represent link together.Bus architecture may be used also
To link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, these are all
It is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1402 can
To be multiple element, that is, includes transmitter and receiver, the list for communicating over a transmission medium with various other devices is provided
Member.For different user equipmenies, user interface 1404, which can also be, external the interface for needing equipment is inscribed, and connection is set
Standby including but not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 1401, which is responsible for management bus architecture and common processing, memory 1403, can store processor 1401 and exists
Execute used data when operation.
Preferably, the embodiment of the present invention also provides a kind of base station, including processor 1401, and memory 1403 is stored in
On reservoir 1403 and the computer program that can run on the processor 1401, the computer program are executed by processor 1401
Each process of the transmission method embodiment of the method for the above-mentioned PBCH signal of Shi Shixian, and identical technical effect can be reached, to keep away
Exempt to repeat, which is not described herein again.
A kind of hardware structural diagram of Figure 15 user terminal of each embodiment to realize the present invention,
The user terminal 1500 includes but is not limited to: radio frequency unit 1501, network module 1502, audio output unit
1503, input unit 1504, sensor 1505, display unit 1506, user input unit 1507, interface unit 1508, storage
The components such as device 1509, processor 1510 and power supply 1511.It will be understood by those skilled in the art that user shown in Figure 15
Terminal structure does not constitute the restriction to user terminal, and user terminal may include components more more or fewer than diagram, or
Combine certain components or different component layouts.In embodiments of the present invention, user terminal includes but is not limited to mobile phone, puts down
Plate computer, laptop, palm PC, vehicle-mounted user terminal, wearable device and pedometer etc..
Radio frequency unit 1501, the frequency resource for not occupied by the SSS in the OFDM symbol that SSS is occupied receive base
Stand transmission PBCH signal, wherein the demodulated reference signal for not mapped PBCH by the frequency resource that the SSS is occupied
DMRS described is not mapped with the DMRS sequence initialized by cell ID by the SSS frequency resource occupied；With
And the base station transmission PBCH signal is received at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS.
Optionally, described not include: by the SSS frequency resource occupied
The PRB not occupied by the SSS；And/or
The RE not occupied by the SSS in PRB that the SSS is occupied.
Optionally, processor 1510 is used to carry out channel using the DMRS sequence received at least one OFDM symbol to estimate
Meter, obtains channel estimation value, and do not solved by the SSS frequency resource occupied to described using the channel estimation value
It adjusts.
Optionally, if described be not mapped with DMRS sequence by the SSS frequency resource occupied, and it is described at least one
The DMRS sequence initialized by cell ID and temporal information is mapped in OFDM symbol；Processor 1510, for using
Channel estimation is carried out in the DMRS sequence not received by the SSS frequency resource occupied, obtains DMRS channel estimation
Value carries out channel estimation using the SSS received, obtains SSS channel estimation value；Using the DMRS channel estimation value and
The SSS channel estimation value carries out relevant detection to the DMRS sequence at least one described OFDM symbol, obtain it is described at least
The temporal information of DMRS sequence in one OFDM symbol.
Optionally, using the DMRS channel estimation value and the SSS channel estimation value, at least one described OFDM is accorded with
DMRS sequence on number carries out relevant detection, obtains the step of the temporal information of the DMRS sequence at least one described OFDM symbol
After rapid, processor 1510 is also used to:
Channel estimation is carried out according to the DMRS sequence at least one described OFDM symbol, obtains at least one described OFDM
Channel estimation value on symbol；
Using the channel estimation value at least one described OFDM symbol, demodulate at least one described OFDM symbol
PBCH signal；
Using the DMRS channel estimation value, the PBCH signal in the OFDM symbol that the SSS is occupied is demodulated.
Optionally, if described be not mapped with DMRS sequence by the SSS frequency resource occupied；Processor 1510, is used for
Channel estimation is carried out using in the DMRS sequence not received by the SSS frequency resource occupied, obtains DMRS channel
Estimated value carries out channel estimation using the SSS received, obtains SSS channel estimation value；And use the DMRS channel
Estimated value and the SSS channel estimation value carry out wireless resource management RRM measurement.
Optionally, the OFDM symbol that the SSS is occupied is the 3rd OFDM symbol in the time-domain resource that SS block is occupied
Number；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied
Number.
It should be understood that the embodiment of the present invention in, radio frequency unit 1501 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 1510 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 1501 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 1501 can also by wireless communication system and network and other
Equipment communication.
User terminal provides wireless broadband internet by network module 1502 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 1503 can be received by radio frequency unit 1501 or network module 1502 or in memory
The audio data stored in 1509 is converted into audio signal and exports to be sound.Moreover, audio output unit 1503 can be with
Audio output relevant to the specific function that user terminal 1500 executes is provided (for example, call signal receives sound, message sink
Sound etc.).Audio output unit 1503 includes loudspeaker, buzzer and receiver etc..
Input unit 1504 is for receiving audio or video signal.Input unit 1504 may include graphics processor
(Graphics Processing Unit, GPU) 15041 and microphone 15042, graphics processor 15041 are captured in video
In mode or image capture mode by image capture apparatus (such as camera) obtain static images or video image data into
Row processing.Treated, and picture frame may be displayed on display unit 1506.Through treated the picture frame of graphics processor 15041
It can store in memory 1509 (or other storage mediums) or carried out via radio frequency unit 1501 or network module 1502
It sends.Microphone 15042 can receive sound, and can be audio data by such acoustic processing.Audio that treated
Data can be converted to the lattice that mobile communication base station can be sent to via radio frequency unit 1501 in the case where telephone calling model
Formula output.
User terminal 1500 further includes at least one sensor 1505, for example, optical sensor, motion sensor and other
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ring
The light and shade of border light adjusts the brightness of display panel 15061, proximity sensor can when user terminal 1500 is moved in one's ear,
Close display panel 15061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions
The size of (generally three axis) acceleration, can detect that size and the direction of gravity, can be used to identify user terminal appearance when static
State (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion)
Deng；Sensor 1505 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, gas
Meter, hygrometer, thermometer, infrared sensor etc. are pressed, details are not described herein.
Display unit 1506 is for showing information input by user or being supplied to the information of user.Display unit 1506 can
Including display panel 15061, liquid crystal display (Liquid Crystal Display, LCD), organic light-emitting diodes can be used
Forms such as (Organic Light-Emitting Diode, OLED) are managed to configure display panel 15061.
User input unit 1507 can be used for receiving the number or character information of input, and generate the use with user terminal
Family setting and the related key signals input of function control.Specifically, user input unit 1507 include touch panel 15071 with
And other input equipments 15072.Touch panel 15071, also referred to as touch screen collect the touch behaviour of user on it or nearby
Make (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 15071 or in touch panel
Operation near 15071).Touch panel 15071 may include both touch detecting apparatus and touch controller.Wherein, it touches
The touch orientation of detection device detection user is touched, and detects touch operation bring signal, transmits a signal to touch controller；
Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 1510,
It receives the order that processor 1510 is sent and is executed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface
The multiple types such as sound wave realize touch panel 15071.In addition to touch panel 15071, user input unit 1507 can also include
Other input equipments 15072.Specifically, other input equipments 15072 can include but is not limited to physical keyboard, function key (ratio
Such as volume control button, switch key), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 15071 can be covered on display panel 15061, when touch panel 15071 detects
After touch operation on or near it, processor 1510 is sent to determine the type of touch event, is followed by subsequent processing device 1510
Corresponding visual output is provided on display panel 15061 according to the type of touch event.Although in Figure 15, touch panel
15071 and display panel 15061 are the functions that outputs and inputs of realizing user terminal as two independent components, but
In some embodiments, touch panel 15071 can be integrated with display panel 15061 and realize outputting and inputting for user terminal
Function, specifically herein without limitation.
Interface unit 1508 is the interface that external device (ED) is connect with user terminal 1500.For example, external device (ED) may include
Wired or wireless headphone port, external power supply (or battery charger) port, wired or wireless data port, storage card
Port, port, the port audio input/output (I/O), video i/o port, earphone for connecting the device with identification module
Port etc..Interface unit 1508 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) simultaneously
And by one or more elements that the input received is transferred in user terminal 1500 or it can be used in user terminal
Data are transmitted between 1500 and external device (ED).
Memory 1509 can be used for storing software program and various data.Memory 1509 can mainly include storage program
Area and storage data area, wherein storing program area can application program needed for storage program area, at least one function (such as
Sound-playing function, image player function etc.) etc.；Storage data area, which can be stored, uses created data (ratio according to mobile phone
Such as audio data, phone directory) etc..In addition, memory 1509 may include high-speed random access memory, it can also include non-
Volatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.
Processor 1510 is the control centre of user terminal, utilizes each of various interfaces and the entire user terminal of connection
A part by running or execute the software program and/or module that are stored in memory 1509, and calls and is stored in storage
Data in device 1509 execute the various functions and processing data of user terminal, to carry out integral monitoring to user terminal.Place
Managing device 1510 may include one or more processing units；Preferably, processor 1510 can integrate application processor and modulation /demodulation
Processor, wherein the main processing operation system of application processor, user interface and application program etc., modem processor master
Handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1510.
User terminal 1500 can also include the power supply 1511 (such as battery) powered to all parts, it is preferred that power supply
1511 can be logically contiguous by power-supply management system and processor 1510, to realize that management is filled by power-supply management system
The functions such as electricity, electric discharge and power managed.
In addition, user terminal 1500 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of user terminal, including processor 1510, memory 1509, storage
On memory 1509 and the computer program that can run on the processor 1510, the computer program is by processor 1510
Each process of the transmission method embodiment of above-mentioned PBCH signal is realized when execution, and can reach identical technical effect, to keep away
Exempt to repeat, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program realizes each of the transmission method embodiment of the PBCH signal of base station side when the computer program is executed by processor
Process.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program realizes the transmission method embodiment of the PBCH signal of subscriber terminal side when the computer program is executed by processor
Each process.
Wherein, the computer readable storage medium, as read-only memory (Read-Only Memory, abbreviation ROM),
Random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within protection of the invention.
Claims (30)
1. a kind of transmission method of Physical Broadcast Channel PBCH signal characterized by comprising
On the orthogonal frequency division multiplex OFDM symbol that secondary synchronization signal SSS is occupied the frequency resource that is not occupied by the SSS to
Family terminal transmission PBCH signal, wherein the demodulated reference signal for not mapped PBCH by the frequency resource that the SSS is occupied
DMRS described is not mapped with the DMRS sequence initialized by cell ID by the SSS frequency resource occupied；
To user terminal transmission PBCH letter at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
Number.
2. the method as described in claim 1, which is characterized in that described not include: by the SSS frequency resource occupied
The Physical Resource Block PRB not occupied by the SSS；And/or
The resource element RE not occupied by the SSS in PRB that the SSS is occupied.
3. the method as described in claim 1, which is characterized in that the frequency resource not occupied by the SSS mapped
The initial position of DMRS sequence is related to the cell ID.
4. method according to any one of claims 1 to 3, which is characterized in that mapped at least one described OFDM symbol
There are DMRS sequence, and density of the DMRS sequence mapped at least one described OFDM symbol in the PRB that PBCH signal occupies
It is 1/4, the DMRS sequence mapped at least one described OFDM symbol is initialized by cell ID and temporal information.
5. method according to any one of claims 1 to 3, which is characterized in that the OFDM symbol that the SSS is occupied is to synchronize
The 3rd OFDM symbol in time-domain resource that block SS block is occupied；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied.
6. method according to any one of claims 1 to 3, which is characterized in that at least one described OFDM symbol
PBCH signal occupies continuous frequency domain resource.
7. a kind of transmission method of PBCH signal characterized by comprising
The frequency resource not occupied by the SSS in the OFDM symbol that SSS is occupied receives the PBCH signal that base station is transmitted,
In, it is described that the demodulated reference signal DMRS of PBCH or described not described is not mapped by the frequency resource that the SSS is occupied
The frequency resource that SSS is occupied is mapped with the DMRS sequence initialized by cell ID；
The base station transmission PBCH letter is received at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
Number.
8. the method for claim 7, which is characterized in that described not include: by the SSS frequency resource occupied
The PRB not occupied by the SSS；And/or
The RE not occupied by the SSS in PRB that the SSS is occupied.
9. the method for claim 7, which is characterized in that it is described in addition to the OFDM symbol occupied except the SSS extremely
After the step of receiving the base station transmission PBCH signal in a few OFDM symbol, the method also includes:
Channel estimation is carried out using the DMRS sequence received at least one OFDM symbol, obtains channel estimation value, and use
The channel estimation value is not demodulated by the SSS frequency resource occupied to described.
10. the method for claim 7, which is characterized in that if described be not mapped with by the SSS frequency resource occupied
DMRS sequence, and the DMRS sequence initialized by cell ID and temporal information is mapped at least one described OFDM symbol
Column；
The base station transmission PBCH is received in described at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
After the step of signal, the method also includes:
Channel estimation is carried out using in the DMRS sequence not received by the SSS frequency resource occupied, obtains DMRS
Channel estimation value carries out channel estimation using the SSS received, obtains SSS channel estimation value；
Using the DMRS channel estimation value and the SSS channel estimation value, to the DMRS at least one described OFDM symbol
Sequence carries out relevant detection, obtains the temporal information of the DMRS sequence at least one described OFDM symbol.
11. method as claimed in claim 10, which is characterized in that use the DMRS channel estimation value and the SSS channel
Estimated value carries out relevant detection to the DMRS sequence at least one described OFDM symbol, obtains at least one OFDM symbol
After the step of temporal information of DMRS sequence on number, the method also includes:
Channel estimation is carried out according to the DMRS sequence at least one described OFDM symbol, obtains at least one described OFDM symbol
On channel estimation value；
Using the channel estimation value at least one described OFDM symbol, the PBCH letter at least one described OFDM symbol is demodulated
Number；
Using the DMRS channel estimation value, the PBCH signal in the OFDM symbol that the SSS is occupied is demodulated.
12. the method for claim 7, which is characterized in that if described be not mapped with by the SSS frequency resource occupied
DMRS sequence；
The base station transmission PBCH is received in described at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
After the step of signal, the method also includes:
Channel estimation is carried out using in the DMRS sequence not received by the SSS frequency resource occupied, obtains DMRS
Channel estimation value carries out channel estimation using the SSS received, obtains SSS channel estimation value；
Using the DMRS channel estimation value and the SSS channel estimation value, wireless resource management RRM measurement is carried out.
13. the method as described in any one of claim 7 to 12, which is characterized in that the OFDM symbol that the SSS is occupied is SS
The 3rd OFDM symbol in time-domain resource that block is occupied；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied.
14. a kind of base station characterized by comprising
First transmission module, frequency resource for not occupied by the SSS in the OFDM symbol that SSS is occupied is to user terminal
Transmit PBCH signal, wherein it is described not by the frequency resource that the SSS is occupied do not map PBCH DMRS or it is described not by
The frequency resource that the SSS is occupied is mapped with the DMRS sequence initialized by cell ID；
Second transmission module, the Xiang Suoshu at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
User terminal transmits PBCH signal.
15. base station as claimed in claim 14, which is characterized in that described not include: by the SSS frequency resource occupied
The Physical Resource Block PRB not occupied by the SSS；And/or
The RE not occupied by the SSS in PRB that the SSS is occupied.
16. base station as claimed in claim 14, which is characterized in that the frequency resource not occupied by the SSS mapped
The initial position of DMRS sequence is related to the cell ID.
17. the base station as described in any one of claim 14 to 16, which is characterized in that at least one described OFDM symbol is shown
DMRS sequence is penetrated, and the DMRS sequence mapped at least one described OFDM symbol is close in the PRB that PBCH signal occupies
Degree is 1/4, and the DMRS sequence mapped at least one described OFDM symbol is initialized by cell ID and temporal information.
18. the base station as described in any one of claim 14 to 16, which is characterized in that the OFDM symbol that the SSS is occupied is
The 3rd OFDM symbol in time-domain resource that synchronization signal block SS block is occupied；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied.
19. the base station as described in any one of claim 14 to 16, which is characterized in that at least one described OFDM symbol
PBCH signal occupies continuous frequency domain resource.
20. a kind of user terminal characterized by comprising
First receiving module, the frequency resource for not occupied by the SSS in the OFDM symbol that SSS is occupied receive base station and pass
Defeated PBCH signal, wherein the demodulated reference signal DMRS for not mapped PBCH by the frequency resource that the SSS is occupied,
Or described the DMRS sequence initialized by cell ID is not mapped with by the SSS frequency resource occupied；
Second receiving module receives institute at least one OFDM symbol in addition to the OFDM symbol occupied except the SSS
State base station transmission PBCH signal.
21. user terminal as claimed in claim 20, which is characterized in that the frequency resource packet not occupied by the SSS
It includes:
The PRB not occupied by the SSS；And/or
The RE not occupied by the SSS in PRB that the SSS is occupied.
22. user terminal as claimed in claim 20, which is characterized in that the user terminal further include:
First demodulation module is obtained for carrying out channel estimation using the DMRS sequence received at least one OFDM symbol
Channel estimation value, and do not demodulated by the SSS frequency resource occupied using the channel estimation value to described.
23. user terminal as claimed in claim 20, which is characterized in that if the frequency resource not occupied by the SSS
It is mapped with DMRS sequence, and is mapped at least one described OFDM symbol and is initialized by cell ID and temporal information
DMRS sequence；
The user terminal further include:
First estimation module is carried out for using in the DMRS sequence not received by the SSS frequency resource occupied
Channel estimation obtains DMRS channel estimation value, carries out channel estimation using the SSS received, obtains SSS channel estimation
Value；
Detection module, for using the DMRS channel estimation value and the SSS channel estimation value, at least one described OFDM
DMRS sequence on symbol carries out relevant detection, obtains the temporal information of the DMRS sequence at least one described OFDM symbol.
24. user terminal as claimed in claim 23, which is characterized in that the user terminal further include:
Second estimation module obtains institute for carrying out channel estimation according to the DMRS sequence at least one described OFDM symbol
State the channel estimation value at least one OFDM symbol；
Second demodulation module, for using the channel estimation value at least one described OFDM symbol, demodulation it is described at least one
PBCH signal in OFDM symbol；
Third demodulation module demodulates the PBCH in the OFDM symbol that the SSS is occupied for using the DMRS channel estimation value
Signal.
25. user terminal as claimed in claim 20, which is characterized in that if the frequency resource not occupied by the SSS
It is mapped with DMRS sequence；
The user terminal further include:
Third estimation module is carried out for using in the DMRS sequence not received by the SSS frequency resource occupied
Channel estimation obtains DMRS channel estimation value, carries out channel estimation using the SSS received, obtains SSS channel estimation
Value；
Measurement module carries out wireless resource management for using the DMRS channel estimation value and the SSS channel estimation value
RRM measurement.
26. the user terminal as described in any one of claim 20 to 25, which is characterized in that the OFDM symbol that the SSS is occupied
Number for SS block occupy time-domain resource in the 3rd OFDM symbol；
At least one described OFDM symbol is the 2nd and the 4th OFDM symbol in the time-domain resource that the SS block is occupied.
27. a kind of base station characterized by comprising memory, processor and be stored on the memory and can be at the place
The computer program run on reason device is realized when the computer program is executed by the processor as appointed in claim 1 to 6
Step in the transmission method of PBCH signal described in one.
28. a kind of user terminal characterized by comprising memory, processor and be stored on the memory and can be in institute
State the computer program run on processor, when the computer program is executed by the processor realize as claim 7 to
Step in the transmission method of PBCH signal described in any one of 13.
29. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the biography such as PBCH signal described in any one of claims 1 to 6 when the computer program is executed by processor
The step of transmission method.
30. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program, the PBCH signal as described in any one of claim 7 to 13 is realized when the computer program is executed by processor
The step of transmission method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953672.8A CN109673049B (en) | 2017-10-13 | 2017-10-13 | PBCH signal transmission method, base station and user terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953672.8A CN109673049B (en) | 2017-10-13 | 2017-10-13 | PBCH signal transmission method, base station and user terminal |
Publications (2)
| Publication Number | Publication Date |
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| CN109673049A true CN109673049A (en) | 2019-04-23 |
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| CN111988246A (en) * | 2020-08-31 | 2020-11-24 | 锐捷网络股份有限公司 | Method, device, equipment and medium for detecting demodulation reference signal of broadcast channel |
| WO2021229258A1 (en) * | 2020-05-14 | 2021-11-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method of ssb design |
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| US20150341908A1 (en) * | 2012-12-27 | 2015-11-26 | Sharp Kabushiki Kaisha | Method for sending and receiving system information, base station, and user equipment |
| CN106936756A (en) * | 2015-12-31 | 2017-07-07 | 中兴通讯股份有限公司 | The transmission method of synchronizing signal, apparatus and system |
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| US20150341908A1 (en) * | 2012-12-27 | 2015-11-26 | Sharp Kabushiki Kaisha | Method for sending and receiving system information, base station, and user equipment |
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Cited By (3)
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|---|---|---|---|---|
| WO2021229258A1 (en) * | 2020-05-14 | 2021-11-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method of ssb design |
| CN111988246A (en) * | 2020-08-31 | 2020-11-24 | 锐捷网络股份有限公司 | Method, device, equipment and medium for detecting demodulation reference signal of broadcast channel |
| CN111988246B (en) * | 2020-08-31 | 2022-08-16 | 锐捷网络股份有限公司 | Method, device, equipment and medium for detecting demodulation reference signal of broadcast channel |
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