CN109217992A - A kind of transmission method, communication equipment and the storage medium of Phase Tracking reference signal - Google Patents
A kind of transmission method, communication equipment and the storage medium of Phase Tracking reference signal Download PDFInfo
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- CN109217992A CN109217992A CN201710517496.3A CN201710517496A CN109217992A CN 109217992 A CN109217992 A CN 109217992A CN 201710517496 A CN201710517496 A CN 201710517496A CN 109217992 A CN109217992 A CN 109217992A
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- transport stream
- local oscillator
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses the transmission method of PTRS a kind of, communication equipment and storage mediums.The transmission method of the PTRS includes: that S transport stream transmission PTRS is selected from M transport stream, wherein S is equal to first communication equipment and carries out the quantity that the M transport streams transmit used local oscillator.
Description
Technical field
The present invention relates to mobile communication technology field more particularly to a kind of phase tracking signal (Phase-Tracking
Reference Signal, PTRS) transmission method, communication equipment and storage medium.
Background technique
In 5th generation (5G), will support the full frequency band of low frequency and high frequency to access.Here low frequency can be frequency lower than 6Ghz's
Carrier wave；The high frequency can be not less than the carrier wave of 6Ghz for frequency.However, the phase noise problems of high frequency are very prominent.5G is special
Introduce PTRS, estimation and compensation for phase noise, carrier wave frequency deviation, Doppler shift.However be not specifically defined also how into
Row PTRS is sent, and how to send the PTRS may insure receiving end can as far as possible high quality receive it is described
PTRS and expense is small, is prior art urgent problem to be solved.
Summary of the invention
In view of this, an embodiment of the present invention is intended to provide the transmission method of PTRS a kind of, communication equipment and storage mediums, until
It is big to can be used for solving the problems, such as that PTRS sends expense less.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
First aspect of the embodiment of the present invention provides the transmission method of PTRS a kind of, is applied in the first communication equipment, comprising:
S transport stream is selected to send PTRS from M transport stream, wherein S is equal to first communication equipment and carries out M
The transport stream transmits the quantity of used local oscillator.
Optionally, the method also includes:
When transmitting the PTRS on selecting S transport stream, the corresponding running time-frequency resource of a transport stream of remaining M-S is enterprising
Row data send or carry out resource punching.
Optionally, described to select S transport stream to send PTRS, including at least one of from M transport stream:
When first communication equipment corresponds to a local oscillations using only a transmission panel and the transmission panel
When device, a transport stream is selected from the corresponding multiple transport streams of the transmission panel, sends the PTRS；
When first communication equipment corresponds to a local vibration using multiple transmission panels and each transmission panel
When swinging device shape, a transport stream is selected from the corresponding transport stream of transmission panel described in each, sends the PTRS；
When first communication equipment uses multiple transmission panels, and multiple transmissions panels correspond to one and local shake
When swinging device, selection one is transmitted from multiple the transmissions panels corresponding transport stream for share the local vibrator
Stream, sends the PTRS.
Optionally, described to select S transport stream to send PTRS, including at least one of from M transport stream:
When sharing the transmission state attribute of multiple transport streams of the same local oscillator and meeting default condition of similarity, from
The multiple transport streams for sharing the same local oscillator arbitrarily select one, transmit the PTRS；
When the transmission state attribute for the multiple transport streams for sharing the same local oscillator is unsatisfactory for described presetting similar item
When part, one is selected from the multiple transport streams for share the same local oscillator according to the transmission state attribute, transmits institute
State PTRS.
Optionally, the transmission state attribute for working as the multiple transport streams for sharing the same local oscillator is unsatisfactory for described
When default condition of similarity, one is selected from the multiple transport streams for sharing the same local oscillator according to the transmission state attribute
It is a, transmit the PTRS, including at least one of:
From the multiple transport streams for sharing the same local oscillator, the highest transport stream of modulating-coding grade is selected
Send the PTRS；
From the multiple transport streams for sharing the same local oscillator, the maximum transport stream hair of scheduled bandwidth is selected
Send the PTRS；
From the multiple transport streams for sharing the same local oscillator, select a subcarrier spacing the smallest described
Transport stream sends the PTRS.
Optionally, the method also includes:
According to the coded modulation grade of the M transport stream, scheduled bandwidth and subcarrier spacing at least within it
One, determine the transmission density of the PTRS, wherein the transmission density includes: that time domain transmission density and/or frequency domain transmission are close
Degree；
It is described to select S transport stream to send PTRS from M transport stream, comprising:
From M described S transport streams of transport stream selection, the PTRS is sent according to the transmission density.
Optionally, described from M described S transport streams of transport stream selection, according to described in transmission density transmission
PTRS, including at least one of:
From the multiple transport streams for sharing the same local oscillator, the highest transmission of modulating-coding grade is selected
Stream sends the PTRS according to the time domain density；
From the multiple transport streams for sharing the same local oscillator, the maximum transport stream of scheduled bandwidth is selected,
The PTRS is sent according to frequency domain density；
From the multiple transport streams for sharing the same local oscillator, select a subcarrier spacing the smallest described
Transport stream sends the PTRS according to the time domain density.
Optionally, the time domain density and the modulating-coding grade are positively correlated；
And/or
The frequency domain density and the modulating-coding grade are positively correlated；
And/or
The frequency domain density and the scheduled bandwidth are negatively correlated；
And/or
The time domain density and the subcarrier spacing are negatively correlated；
And/or
The frequency domain density and the subcarrier spacing are negatively correlated.
The method also includes:
When first communication equipment is base station, pass through radio resource control RRC signaling, Downlink Control Information DCI, matchmaker
At least one of body access control MAC layer signaling or the dispatch command of downstream grants resource, the dominant or recessive instruction hair
Send density；
It is dominant or recessive to base station instruction by ascending control information when first communication equipment is user equipment
The transmission density.
Second aspect of the embodiment of the present invention provides the transmission method of phase tracking signal PTRS a kind of, is applied to the second communication
In equipment, comprising: select S transport stream to receive PTRS from M transport stream, wherein S is equal to the first communication equipment and carries out M
The transport stream transmits the quantity of used local oscillator.
Optionally, the method also includes:
When receiving the PTRS on selecting S transport stream, from the corresponding running time-frequency resource of a transport stream of remaining M-S
It receives data or does not receive data on the corresponding running time-frequency resource of the described transport stream of remaining M-S.
The third aspect of the embodiment of the present invention provides a kind of communication equipment, comprising:
Transceiver, for carrying out information exchange with other communication equipments；
First processor is connected with the transceiver, for by execute computer program, realize it is aforementioned any one or
The transmission method of multiple PTRS.
A kind of communication equipment of fourth aspect of the embodiment of the present invention, comprising: second processor and computer program；
The second processor, for realizing aforementioned any one or more by executing the computer program
The transmission method of PTRS.
A kind of the 5th computer storage medium of aspect of the embodiment of the present invention, the computer storage medium are stored with computer
Program after the computer program is executed by processor, can be realized the transmission method of aforementioned any one or more PTRS.
Transmission method, communication equipment and the storage medium of PTRS provided in an embodiment of the present invention is carrying out multiple stream transmission, meeting
According to the number for the local vibrator that multiple transport streams use, the transport stream equal with the local oscillator data used is selected,
To transmit PTRS.In this case, without sending PTRS in each transport stream, the transmission stream of PTRS can be reduced in this way,
Simplify the transmission of PTRS, reduces hardware resource and transfer resource needed for sending PTRS, transfer resource here can include: when
Frequency resource and code resource etc., to achieve the effect that reduce PTRS expense.
Detailed description of the invention
Fig. 1 is the flow diagram of the transmission method of the first PTRS provided in an embodiment of the present invention；
Fig. 2 is the flow diagram of the transmission method of second of PTRS provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of communication equipment provided in an embodiment of the present invention；
Fig. 4 is the corresponding schematic diagram of the first transmission state attribute provided in an embodiment of the present invention with transmission density；
Fig. 5 is the corresponding schematic diagram of second of transmission state attribute provided in an embodiment of the present invention with transmission density.
Specific embodiment
Technical solution of the present invention is further described in detail with reference to the accompanying drawings and specific embodiments of the specification.
As shown in Figure 1, being applied in the first communication equipment the present embodiment provides the transmission method of PTRS a kind of, comprising:
S transport stream is selected to send PTRS from M transport stream, wherein the S is carried out equal to first communication equipment
The M transport streams transmit the quantity of used local oscillator.
First communication equipment described in the present embodiment can be base station or user equipment.
When the value of the M is not less than 2 in the present embodiment, then the data transmission of M transport stream is carried out, is a kind of multithread
Transmission.Multiple transport streams in multiple stream transmission use same running time-frequency resource, carry out data by the way that the modes such as space division multiplexing are synchronous
Transmission.For example, base station sends multiple wave beams of multiple orthogonal spaces to terminal simultaneously, if the corresponding transmission of a wave beam
Stream is then sent by the data of multiple wave beams, realizes multiple stream transmission.
The transmission of PTRS in the present embodiment is mainly used for carrying out the estimation of phase noise, carrier wave frequency deviation, Doppler shift
And compensation.In order to determine the local oscillator noise etc. of each transport stream, the biography of PTRS ought to be carried out to each transport stream
It is defeated, so that it is determined that go out the corresponding phase noise of each transport stream, carrier wave frequency deviation, Doppler shift estimated value and mended
It repays.And the S transport stream equal to local oscillator number can be only selected from M transport stream in the present embodiment, carry out institute
State the transmission of PTRS.
In the present embodiment, the local oscillator noise estimated value that the PTRS for spreading defeated transmission based on one is obtained, can be at one
It is subsequent for multiple local oscillator noise removals using in the transport stream for using identical local oscillator with the transport stream etc. in terminal
Processing.
S transport stream is selected in the present embodiment, is transmitted PTRS, be may particularly include:
This corresponding antenna port of S transport stream is selected as the antenna port of the PTRS and carries out the transmission of PTRS.
The antenna port is a logical concept, the antenna oscillator tool of the antenna port and the first communication equipment in the present embodiment
There are certain mapping relations, for example, can include: control the pre-coding matrix of the wave beam forming of antenna oscillator.Carry out the biography of PTRS
When defeated, PTRS directly is transmitted using S transport stream, is included at least: carrying out antenna oscillator using the antenna port of the S transport stream
Wave beam forming, and then send corresponding PTRS.
For example, the baseband signal of the M transport stream to the conversion between radiofrequency signal, is real by S local oscillator
Existing, then S transport stream is needed to send the PTRS, carries out the estimation and benefit of phase noise, carrier wave frequency deviation, Doppler shift
It repays.Under normal circumstances, a local oscillator is used in the baseband signal of one or more transport streams to the conversion of radiofrequency signal,
In this case, relative to the transmission for carrying out PTRS in each transport stream, reduce the transport stream for sending PTRS, thus simple
The transmission times of PTRS is changed or has sent number, simplified the reception of the second communication equipment, the resource for reducing PTRS transmission disappears
Consumption.Here resource consumption, it may include send running time-frequency resource and/or sequence resources of the PTRS etc..The PTRS can be
It is to be generated based on corresponding reference sequences.
The local oscillator carries out baseband signal to the conversion between radiofrequency signal in the present embodiment, comprising: to institute
It states after baseband signal carries out up-conversion and obtains the radiofrequency signal；The radiofrequency signal is carried out to obtain the base after down coversion
Band signal.
In some embodiments, the method also includes:
When transmitting the PTRS on selecting S transport stream, the corresponding running time-frequency resource of a transport stream of remaining M-S is enterprising
Row data send or carry out resource punching.
If S transport stream has been selected to transmit the PTRS in the present embodiment, the remaining M-S transport streams are passed at S
It is defeated when spreading the defeated PTRS, so that it may to be sent on corresponding running time-frequency resource without data, i.e. progress resource punching is such
Words, relative to transmitting the PTRS in each transport stream, it is possible to reduce the transmission of the first communication equipment operates, described in reduction
The power consumption and load capacity of first communication equipment, while interference when transmitting the PTRS to S transport stream can also be reduced.If
Business datum is transmitted on the corresponding running time-frequency resource of the remaining M-S transport stream, then obviously increases remaining M-S transport stream
Corresponding running time-frequency resource has been used for transmission business datum, increases the capacity of communication system, improves effective benefit of running time-frequency resource
With rate.Remaining M-S transport stream carries out the transmission of business datum when S transport stream carries out PTRS transmission, in order to facilitate second
The data of communication equipment decode, first communication equipment and the second communication equipment, can negotiate in advance interference suppression algorithm or
Interference elimination algorithm is correctly decoded the PTRS and the business datum with facilitate the second communication equipment.In some embodiments
In, the AF panel mode and interference elimination mode can be to pre-define, by first communication equipment and described second
Well known to communication equipment.It is commonly used in interference elimination and restrainable algorithms can include: interference suppression ratio merging algorithm (IRC),
Maximum-ratio combing algorithm (IRC), zero forcing algorithm (ZF), least-mean-square error algorithm (MMSE) etc., when specific implementation, are not limited to
These algorithms.
Optionally, first communication equipment can be base station or user equipment.If first communication equipment is base station, then
The second communication equipment for receiving the PTRS is user equipment；If first communication equipment be user equipment, described second
Communication equipment is base station.
In specific implementation, according to one of optional situation below the similarities and differences range of transmitting scene or a variety of:
The first:
When first communication equipment corresponds to a local oscillations using only a transmission panel and the transmission panel
When device, a transport stream is selected to send the PTRS from the corresponding transport stream of the transmission panel.I.e. when first communication
When equipment send transmitting scene (SU-MIMO) of the multiple-input and multiple-output of the single-user equipment of panel using single-shot, then M are equivalent to
Transport stream is all to send multiple transport streams for sending to a user equipment of panel using one, then can be in the present embodiment from
A transport stream is randomly choosed in M transport stream transmits the PTRS.Certainly in some embodiments, in order to reduce because random
The problem for selecting to cause the reception difficulty of user equipment big, can or number minimum according to the selections number such as the stream of transport stream number
Maximum or priority level selects one from M transport stream, transmits the PTRS.
Second:
When first communication equipment corresponds to a local vibration using multiple transmission panels and each transmission panel
When swinging device shape, a transport stream is selected to send the PTRS from the corresponding transport stream of transmission panel described in each.
For example, currently used 3 transmission panels, and 3 local oscillators has been used to carry out multiple stream transmissions, then need benefit
With the PTRS of 3 transport streams, then the corresponding PTRS of n-th of transmission panel only can be one corresponding from n-th of transmission panel
Or a hair is selected to convey the PTRS in multiple transport streams.
Further, according to the beamforming approach for sending panel, independent beam figuration and joint wave can be divided into
Beam figuration.
When first communication equipment uses multiple transmission panels, and multiple transmissions panels correspond to one and local shake
When swinging device and each transmission panel independent beam figuration, respectively selected from the corresponding multiple transport streams of each transmission panel
One transport stream, sends the PTRS.Corresponding transmitting scene herein are as follows: the first communication equipment uses multiple transmission panels, is
One user equipment carries out the transmitting scene of multi input and multi output.And these send panel and correspond to local oscillator difference,
And these send panel independent beam figuration.Then each sends the transmission that panel corresponds to a PTRS.
When first communication equipment uses multiple transmission panels, and multiple transmissions panels correspond to one and local shake
When swinging device and each transmission panel united beam form-endowing, one is respectively selected from the corresponding transport stream of transmission panel described in each
A transport stream sends the PTRS.
The third:
When first communication equipment corresponds to a local vibration using multiple transmission panels and multiple transmission panels
When swinging device, one transport stream of selection from multiple the transmissions panels corresponding transport stream for share local oscillator
Send the PTRS.
A user equipment may have been used multiple transmission panels and multiple local oscillators in the present embodiment.For example,
Send panel A and send panel B and share a local vibrator, in order to reduce the transmission of PTRS, then can send panel A and
Send one transmission PTRS of selection in the corresponding multiple transport streams of panel B.
In some embodiments, share the transmission channel that multiple transport streams of the same local oscillator use have it is very high
Similitude, then the first communication equipment may select identical transmission state attribute at this time, carry out multiple stream transmission, then at this point, more
Requirement of a transport stream to the transmission density of PTRS may be identical, but the difference of transmission channel is very in some cases
More, then the first communication equipment may select different transmission state attributes, carry out multiple stream transmission, then multiple transport streams are to PTRS
Transmission density can be inconsistent.In the present embodiment, on the one hand in order to simplify the transmission of PTRS, on the one hand in order to meet not simultaneous interpretation
Defeated status attribute is described to select S transport stream transmission PTRS from M transport stream to the transmission demand of PTRS, including with down toward
It is one of few:
When sharing the transmission state attribute of multiple transport streams of the same local oscillator and meeting default condition of similarity, from
The multiple transport streams for sharing the same local oscillator arbitrarily select one, transmit the PTRS.For example, multiple totally one local
The coded modulation grade (MCS) of the transport stream of vibrator is identical or grade difference is no more than grade threshold etc., then it is believed that meeting
The default condition of similarity of institute.For example, bandwidth scheduled in multiple transport streams of totally one local vibrator is equal or bandwidth difference not
Greater than bandwidth discrepancy threshold etc., then it is believed that meeting the default condition of similarity.For another example, multiple totally one local vibrator
The subcarrier spacing that transport stream uses is equal or the difference of subcarrier spacing within a preset range, then it is believed that meeting described default
Condition of similarity, otherwise it is believed that being unsatisfactory for the condition of similarity.It, can be at random from multiple if meet above-mentioned default condition of similarity
It shares in the transport stream of a local vibrator and randomly chooses a transport stream, carry out the transmission of PTRS, it can also be according to default
Selection mode, for example, selection stream number is minimum or the largest number of transport stream of stream transmits the PTRS.
If be unsatisfactory for the default condition of similarity, when the transmission shape for the multiple transport streams for sharing the same local oscillator
When state attribute is unsatisfactory for the default condition of similarity, according to the transmission state attribute from sharing the more of the same local oscillator
One is selected in a transport stream sends the PTRS.
For example, when the MCS difference of use, then being selected according to the MCS when the multiple transport streams for sharing a local oscillator
It selects a transport stream and carries out the transmission of the PTRS, to avoid randomly choosing or directly select to flow numbering smaller or biggish biography
Defeated stream, it is caused be unsatisfactory for corresponding transmission state attribute needed for PTRS transmit the problem of, so that it is guaranteed that the biography of required PTRS
Transmission quality.
Further, described when the transmission state attribute for the multiple transport streams for sharing the same local oscillator is unsatisfactory for institute
When stating default condition of similarity, selected from the multiple transport streams for sharing the same local oscillator according to the transmission state attribute
One, transmit the PTRS, including at least one of:
From the multiple transport streams for sharing the same local oscillator, the highest transport stream of MSC is selected, described in transmission
PTRS；
From the multiple transport streams for sharing the same local oscillator, the maximum transport stream of scheduled bandwidth is selected,
Transmit the PTRS；Here scheduled bandwidth can be according to the corresponding totality of resource block (RB) for distributing to each transport stream
Bandwidth determines；
From the multiple transport streams for sharing the same local oscillator, select a subcarrier spacing the smallest described
Transport stream sends the PTRS.
The transmission state attribute in the present embodiment, it may include: one in MCS, scheduled bandwidth and subcarrier spacing
A or multiple, when specific implementation, is not limited to MCS, scheduled bandwidth and subcarrier spacing.
In some cases, the transport stream being related in the multiple stream transmission corresponds to multiple user equipmenies, usually
User equipment can move in the cell range that base station is formed, and in this case, distance of the user equipment apart from base station is different,
In order to ensure the quality of reception of each user equipment, corresponding transmission may be sent using different coded modulation grades
Stream.And requirement of the different coded modulation grades to the transmission density of PTRS is different.
In some embodiments, base station and terminal be when carrying out multiple stream transmission, can also according to currently available bandwidth and/or
The parameters such as service quality (QoS) grade of the data of current transmission, the son that distribution carries out data transmission for each transport stream
The carrier parameters such as carrier wave and subcarrier spacing.Subcarrier spacing is bigger, then the probability interfered with each other between subcarrier is lower,
Relatively low PTRS can be then required to send density at this time.
In further embodiments, bandwidth scheduled in a transport stream is different, in the present embodiment, if it is adjusted
The bandwidth of degree is bigger, then the transmission density for needing to carry out PTRS is usually larger.
The transmission density in the present embodiment can include: time domain density and/or frequency domain density.The time domain density can wrap
Include: sending cycle in the time domain, it is adjacent twice between transmission time interval.The frequency domain density, it may include: send two
Frequency domain interval between the frequency band of PTRS, or, the frequency domain period.
The whole transmission times of the PTRS in the present embodiment, while being decided by that the frequency domain density and the time domain are close
Degree.
In view of this, as shown in Fig. 2, the method can include:
Step S101: extremely according to the coded modulation grade, scheduled bandwidth and subcarrier spacing of the M transport stream
It is one of few, determine the transmission density of the PTRS, wherein the transmission density includes: that time domain sends density and/or frequency domain
Send density；
Step S102: S transport stream is selected from M transport stream, sends the PTRS according to the transmission density.
The coded modulation grade of the lower corresponding transport stream of user equipment of ordinary circumstance may be identical, or be located at phase
Ortho position is set or the quasi- coded modulation grade with the space channel user equipment of position may be identical.
It in the present embodiment in a word can bandwidth and subcarrier according to scheduled in the coded modulation grade, each transport stream
Interval, determines the transmission density of PTRS.
Specifically can such as, according to the highest coded modulation grade of multiple transport streams of totally one local oscillator, determine described in
The transmission density of PTRS, for example, time domain density；Maximum bandwidth scheduled in multiple transport streams of one local oscillator determines
The transmission density of the PTRS, for example, frequency domain density.For another example most according to multiple transport streams of totally one local oscillator
Small subcarrier spacing determines the transmission density of the PTRS, for example, time domain density etc..
Accordingly, the step S102, including at least one of:
From the multiple transport streams for sharing the same local oscillator, the highest transport stream of modulating-coding grade is selected
The PTRS is sent according to the time domain density；
From the multiple transport streams for sharing the same local oscillator, the scheduled maximum transport stream of bandwidth is selected to press
The PTRS is sent according to the frequency domain density；
From the multiple transport streams for sharing the same local oscillator, the smallest biography of scheduled subcarrier spacing is selected
Defeated stream sends the PTRS according to the time domain density.
In the present embodiment when carrying out PTRS transmission, in multiple transport streams for sharing the same local oscillator, choosing
The highest transport stream of coded modulation grade, the maximum transport stream of scheduled bandwidth or the smallest transport stream of subcarrier spacing are selected, is pressed
The PTRS transmission is carried out according to the transmission density determined in step S101, may insure all of totally one local oscillator in this way
The PTRS of transport stream sends meet demands, and reduces the transmission total number and transmission resource consumption of PTRS on the whole simultaneously
Deng.
Optionally, the time domain density and the modulating-coding grade are positively correlated；And/or the frequency domain density with it is described
Modulating-coding grade is positively correlated；And/or the frequency domain density and the scheduled bandwidth it is negatively correlated；And/or the time domain is close
Degree is negatively correlated with the subcarrier spacing；And/or the frequency domain density and the subcarrier spacing it is negatively correlated.
The positive correlation in the present embodiment can include: proportional relation；The negative correlation can include: inverse relation etc.；But
The proportional relation and the inverse relation are not limited to when being specific implementation.
Before sending the PTRS, the method also includes:
When first communication equipment is base station, pass through radio resource control RRC signaling, Downlink Control Information DCI, matchmaker
At least one of body access control MAC layer signaling or the dispatch command of downstream grants resource, the dominant or recessive instruction hair
Send density；
It is dominant or recessive to base station instruction by ascending control information when first communication equipment is user equipment
The transmission density.
In the present embodiment before sending PTRS, the transmission of the indication signaling is first passed through, informs the second communication equipment
Then the transmission density of PTRS facilitates the second communication equipment to be based on the transmission density and receives the PTRS, while in this implementation
First communication equipment itself described in example also can send the PTRS based on the transmission density, to ensure the second communication equipment pair
The successful reception of the PTRS.
The dominant instruction described in the present embodiment can are as follows: instruction information is directly carried in the indication signaling, it is described
It indicates information, the transmission density has been explicitly indicated.
The recessive instruction can are as follows: the content for sending density and certain specific fields in the indication signaling has
Corresponding relationship, and this corresponding relationship is in advance well known to the first communication equipment and the second communication equipment.If the first communication
It, can be by carrying other content in indication signaling after equipment has determined specific reference signals and the transmission density that PTRS is sent
Specific fields recessiveness the second communication equipment of informing.
It in some embodiments, can be in conjunction with dominant instruction and recessive instruction two ways.For example, sending one in density
Part carries out recessive instruction by indication signaling and corresponding relationship by the dominant instruction of indication signaling, another part.
The embodiment of the present invention also provides the transmission method of phase tracking signal PTRS a kind of, is applied to the second communication equipment
In, comprising:
S transport stream is selected to receive PTRS from M transport stream, wherein S is equal to first communication equipment and carries out M
The transport stream transmits the quantity of used local oscillator.
Second communication equipment is receiving device in the present embodiment, selects S transport stream to receive from M transport stream
PTRS, it is only necessary to receive S PTRS for being less than M, reduce the transport stream quantity of PTRS.
Optionally, the method also includes: select S transport stream on receive the PTRS when, from remaining M-S institute
It states and receives data on the corresponding running time-frequency resource of transport stream or do not receive number on the corresponding running time-frequency resource of the described transport stream of remaining M-S
According to.
In some embodiments, the method also includes: receive indication signaling；Wherein, when second communication equipment is
When terminal, the indication signaling can be one or more of RRC, DCI, MAC CE and the dispatch of downstream grants resource,
The indication signaling is dominant or recessive instruction sends density；Here the associated description of transmission density may refer to previous embodiment and exist
This is not just repeated.If the second communication equipment is base station, the indication signaling is UCI.
The method also includes:
Receive the PTRS that first communication equipment is sent according to density is sent.
It is described to select the S transport streams from the M transport streams, receive the PTRS, including at least one of:
From multiple transport streams of the same local oscillator of the first communication common carrier equipment, modulating-coding grade is selected
Highest transport stream receives the PTRS according to the time domain density；
From multiple transport streams of the same local oscillator of the first communication common carrier equipment, scheduled bandwidth is selected most
Big transport stream receives the PTRS according to frequency domain density；
From multiple transport streams of the same local oscillator of the first communication common carrier equipment, a sub- intercarrier is selected
The PTRS is received according to the time domain density every the smallest transport stream.
As shown in figure 3, the embodiment of the present invention provides a kind of communication equipment, comprising:
Transceiver 110, for carrying out information exchange with other communication equipments；
First processor 120 is connected with the transceiver 110, for realizing aforementioned one by executing computer program
Or the transmission method of the PTRS of multiple technical solutions offers.
Here communication equipment can be the first communication equipment or the second communication equipment.If first communication equipment is base
It stands, then second communications device terminal, if the first communication equipment is terminal, the second communication equipment is base station.
The transceiver 110 can correspond to the dual-mode antenna that there are data to transmit or transmitting-receiving array etc..Transmission face above-mentioned
Plate is the component part of the transceiver 110.
The first processor 120 can be central processing unit (CPU), microprocessor (MCU), number in the present embodiment
Signal processor (DSP), application processor (AP), programmable array (PLC) or specific integrated circuit (ASIC) etc..
The first processor 120 can realize the one of the transmission method of aforementioned PTRS by the execution of computer program
It is a or multiple.Accordingly, the transceiver 110 can be located in terminal, for being communicated with base station, may be alternatively located in base station,
For being communicated with terminal.
First communication equipment and the second communication equipment can form mobile communication system, execution through the above steps, and one
The transmission for realizing PTRS of aspect simplicity, on the other hand ensures the second communication equipment to the quality of reception of the PTRS.
The present embodiment provides a kind of communication equipments, comprising: second processor and computer program；
The second processor, for realizing real aforementioned any one or more skills by executing the computer program
The transmission method for the PTRS that art scheme provides.
The present embodiment provides a kind of communication equipment, which includes second processor and computer program.This
In calculation procedure can be the computer-executable code that is run by the second processor.At described second.
The embodiment of the present invention also provides a kind of computer storage medium, and the computer storage medium is stored with computer journey
Sequence after the computer program is executed by processor, can be realized the PTRS that aforementioned any one or more technical solutions provide
Transmission method.
The computer storage medium can be the various storages such as read-only storage medium, flash memory, mobile hard disk, CD or tape
Medium is chosen as non-moment storage medium.
Several specific examples are provided below in conjunction with any of the above-described or multiple embodiments:
The application sends problem for the multithread of PTRS in 5G, the characteristics of mutually being made an uproar according to the local oscillator of local oscillator, respectively
For single user and multi-user different scenes (multiple stream transmission channel condition is consistent and multiple stream transmission channel condition is had any different this two
The scene that kind can be potentially encountered in practice), propose the multiple stream transmission method of PTRS a kind of.This method can be effectively reduced
The expense of PTRS.Also, this example also proposed the time domain and Domain Design criterion of a kind of PTRS.Below for different transmission
Scene provides several specific examples:
Example 1:
This example is directed to that channel conditions are similar (i.e. aforementioned transmission status attribute is same or similar), this example includes:
When the channel condition of multiple transport streams is consistent, PTRS only need to base station used in biography as local oscillator quantity
The transmission PTRS of respective numbers is transmitted on defeated stream, remaining transport stream can carry out resource according only to the above-mentioned transport stream for having passed PTRS
Punch (i.e. orthogonal transmission) or for transmitting data (i.e. non orthogonal transmissions).Here resource punching can include: in other transmission
Stream overhead reserves the running time-frequency resource of transmission PTRS, carries out data biography by modes such as frequency division multiplexing, time division multiplexing or code division multiplexings
It is defeated.Here PTRS send when, other transport streams transmission data can be business datum relevant to concrete application or business,
It may also include control signaling relevant to transmission control etc..
The downlink transfer of downlink transfer to data from base station to user equipment and data from user equipment to base station below,
It is discussed respectively.
Downlink transfer:
When the channel condition of base station multiple stream transmission is consistent, PTRS only need to base station used in as local oscillator quantity
The transmission PTRS of respective numbers is transmitted in transport stream, remaining transport stream can be beaten according only to the above-mentioned transport stream for having passed PTRS
Hole (i.e. orthogonal transmission) or for transmitting data (i.e. non orthogonal transmissions)
For the transmitting scene of the multiple-input and multiple-output (SU-MIMO) of downlink single user:
1) panel situation (assuming that one local oscillator of a transmission panel) is sent if it is single-shot, then only needs a transmission at this time
The PTRS antenna port of PTRS is transmitted in the PTRS antenna terminal mapping to one of transport stream, remaining transport stream
It can be punched according only to the above-mentioned transport stream for having passed PTRS or for transmitting data.
2) panel situation is sent if it is multiple, and multiple send panel independent beam figuration (assuming that one transmission panel one
Local oscillator)；Situation with it is above-mentioned 1) similar.
3) panel situation is sent if it is multiple, it is multiple to send panel united beam form-endowing (assuming that transmission one sheet of panel
Vibration)；Situation with it is above-mentioned 1) similar, but need to consider the multiple phase difference sent between panel
For the transmitting scene of the multiple-input and multiple-output (MU-MIMO) of descending multi-user equipment:
Panel situation (assuming that one local oscillator of a transmission panel) is sent if it is single-shot, as can perfect empty with Wave beam forming
Point, then each user equipment can be respectively according to the transmission for carrying out PTRS the case where above-mentioned SU-MIMO；Wave beam forming cannot such as be used
Perfect space division, then each user equipment can be respectively according to the transmission for carrying out PTRS the case where above-mentioned SU-MIMO, since each user believes
Road is consistent, it is therefore desirable to orthogonal or non orthogonal transmissions between the antenna port of the transmission PTRS of each user.Here perfection
Divide sky, i.e., there is no intersection using the transmission space or transmission channel of multiple transport streams of identical running time-frequency resource, that is, do not interfere with each other, it is no
Imperfect space division when then thinking.
Send panel situation (assuming that transmission one local oscillator of panel, each transmission panel support if it is multiple
One user equipment), then it is similar with above-mentioned SU-MIMO situation.
When the channel condition that terminal multiple transport passes through has a high correlation, for example, user equipment be in range compared with
Small space, for example, all in interior, it may be considered that the channel condition of multiple stream transmission is with uniformity, i.e., the channel matter of each stream
Equally, scheduled MCS is same for amount instruction (CQI).
Uplink:
When the channel condition of user equipment multiple stream transmission is consistent, PTRS only need to local oscillator number used in user equipment
The PTRS antenna port number of respective numbers is transmitted in the same transport stream of amount, remaining transport stream can have been passed according only to above-mentioned
The transport stream of PTRS is to punch (i.e. orthogonal transmission) or for transmitting data (i.e. non orthogonal transmissions).The local oscillator quantity is this
The quantity of ground oscillator.
The transmission of specific PTRS is consistent with downlink transfer, is not just repeated herein.
For downlink transfer, when the channel condition of multiple stream transmission is had any different, the design principle of multithread PTRS are as follows:
For downlink SU-MIMO:
Send panel situation (assuming that one local oscillator of a transmission panel) if it is single-shot, then it only need to be according to highest
Bandwidth scheduled in MCS and/or maximum and/or that transport stream (being assumed to be transport stream A) of minimum subcarrier spacing are to transmit
The time-frequency density PTRS antenna port needed, and other transport streams (B) ignore the time-frequency domain density needed for itself completely, according only to upper
Transport stream A is stated to punch (i.e. orthogonal transmission) or data (i.e. non orthogonal transmissions) completely for transmitting itself
Panel situation is sent if it is multiple, it is multiple to send panel independent beam figuration (assuming that one local of a transmission panel
Oscillator)；Situation with it is above-mentioned 1) similar
Panel situation is sent if it is multiple, it is multiple to send panel united beam form-endowing (assuming that one local of a transmission panel
Oscillator)；Situation with it is above-mentioned 1) similar, but need to consider the multiple phase difference sent between panel.As by multiple transmission panels
The introducing of phase difference, so that multiple transmission panel combined modulations and sending out a wave beam.
Example 2:
It is similar (i.e. aforementioned transmission status attribute is not identical or dissimilar) that this example is directed to channel conditions, this example packet
It includes:
For downlink MU-MIMO:
It is sent panel situation (assuming that one local oscillator of a transmission panel) if it is single-shot, and there are near-far interference,
The MCS of the MCS high of i.e. close user equipment, remote user equipment are small.
When interfering with each other lower than default interference threshold of such as spatial reuse of the corresponding wave beam of different transport streams, for example, not
With transport stream transmission space it is entirely different when, then each user equipment can be carried out respectively according to the case where above-mentioned SU-MIMO
The transmission of PTRS.
If when interfering with each other not less than default interference threshold of the spatial reuse of the corresponding wave beam of difference transport stream, needs
Consider the orthogonalization transmission between each user equipment, but since the user of the stream of low code modulation mode MCS is to estimation of mutually making an uproar
The user of ratio of precision high MCS stream wants low, therefore, user's biography PTRS that the user of high MCS stream can be supported flow in low MCS (or root
Originally do not need to pass) the position RE pass data, to improve handling capacity.
Send panel situation (assuming that transmission one local oscillator of panel, each transmission panel support if it is multiple
One user equipment), then it is similar with above-mentioned SU-MIMO situation.
When PTRS multiple transport transmits, different transport streams are since the CQI of channel is different, the bandwidth that can be supported
(scheduled RB quantity) and MCS are also different, and (such as the multi-user dispatched in MU-MIMO, some are close, some are remote, therefore have
A little subscriber channel conditions are good, can pass high MCS, some subscriber channel conditions are poor, can only pass low MCS).At this moment needed for each transport stream
PTRS frequency domain and time domain density it is also different (such as frequency domain density be mono- PTRS of every x PRB；Time domain density be it is continuous, often
Every 2 OFDM symbols, every 4,8 are waited or are not needed PTRS).
Scheduled MCS is higher, and the time domain and/or frequency domain density of required PTRS is bigger
Scheduled bandwidth is bigger, and the frequency domain density of required PTRS is lower
Scheduled subcarrier spacing is bigger, and the time domain density and/or frequency domain density of required PTRS is lower
For uplink, when the channel condition of multiple stream transmission is had any different, the design principle of multithread PTRS are as follows:
For uplink SU-MIMO:
Panel situation (assuming that one local oscillator of a transmission panel) is sent if it is single-shot, then this example proposition only needs
According to bandwidth scheduled in highest MCS and/or maximum and/or that transport stream (being assumed to be transport stream A) of minimum subcarrier spacing
Transmit required time-frequency density PTRS antenna port, and other transport streams (s) ignore the time-frequency domain density needed for itself completely,
(i.e. orthogonal transmission) is punched according only to above-mentioned transport stream A or is used to transmit the data (i.e. non orthogonal transmissions) of itself completely.
Panel situation is sent if it is multiple, it is multiple to send panel independent beam figuration (assuming that one local of a transmission panel
Oscillator)；Situation with it is above-mentioned 1) similar.
Panel situation is sent if it is multiple, it is multiple to send panel united beam form-endowing (assuming that one local of a transmission panel
Oscillator).Situation with it is above-mentioned 1) similar, but need to consider the multiple phase difference sent between panel.
For uplink MU-MIMO:
Such as there is near-far interference, user's biography PTRS that the user of high MCS stream can be supported flow in low MCS (or be not required at all
Pass) the position RE pass data, to improve handling capacity.
The time domain density of PTRS is related with MCS and/or SCS, specific design criteria are as follows:
The time domain density of PTRS is related with MCS, and relationship between the two is as follows:
Table 1 is the example of the time domain density of PTRS and the relationship of MCS:
| MCS | Time domain density |
| 0≤MCS<MCS1 | 0 |
| MCS1≤MCS<MCS2 | A |
| MCS2≤MCS<MCS3 | B |
| MCS3≤MCS<MCS4 | C |
| MCS4≤MCS | 1 |
Wherein, MCS1, MCS2, MCS3, MCS4 are by the MCS of all supports with MCS1, MCS2, MCS3, and MCS4 is boundary
Point is divided into 5 subranges.This is an example, and division in practice may be fewer than this, or more than this, and having can
Can, according to the actual situation depending on；
Also, the value (0 < A < B < C < 1) of wherein A, B, C, according to the actual situation depending on, it is possible to it is different.For example,OrEtc., whereinIndicate that time domain is put every x symbol
Enter PTRS.
After the relationship of PTRS time domain density and MCS has been determined using table 1, this relationship is it is also possible to by subcarrier spacing
(SubCarrier Spacing, SCS) influences, as shown in Fig. 4:
The relationship of time domain density and MCS and/or SCS that it is PTRS that Fig. 4, which is indicated,.A in Fig. 4, B, C ..., I according to
Depending on actual conditions, it is possible to which different situations are different.
In Fig. 4, the interval for the subcarrier that X1, X2 and X3 are indicated, specific value may respectively be 60,120 and 240；But
It is not limited to this, X1 is less than X2；X2 is less than X3.X1, X2, X3 are an example, and value in practice may be fewer than this, or
It is more than this, be likely to, according to the actual situation depending on
The frequency domain density of PTRS is related with scheduled bandwidth and/or MCS, specific design criteria are as follows:
The frequency domain density of PTRS is related with scheduled bandwidth, and relationship between the two is as follows:
Table 2 is a kind of example of the relationship of PTRS frequency domain density and scheduled bandwidth:
| Scheduled bandwidth | Frequency domain density |
| 0≤NRB<NRB1 | a |
| NRB1≤NRB<NRB2 | b |
| NRB2≤NRB<NRB3 | c |
| NRB3≤NRB<NRB4 | d |
| NRB4≤NRB | e |
Wherein, NRB1, NRB2, NRB3, NRB4 are by whole bandwidth with NRB1, NRB2, NRB3, and NRB4 is that separation divides
For 5 subranges.This is an example, and division in practice may be fewer than this, or more than this, is likely to, root
Depending on actual conditions.
Also, the value of wherein a, b, c, d, e (0≤a <b < c < d < e), according to the actual situation depending on, it is possible to not
Together.For example, a=1, b=2, b=3, d=4, e=5 or a=6, b=7, b=8, d=9, e=10 etc., wherein a=x
Indicate in scheduled bandwidth and (to measure with RB quantity, a RB includes 12 RE in frequency domain) have x RE as PTRS.
After the relationship of PTRS frequency domain density and scheduled bandwidth has been determined using table 2, this relationship it is also possible to by
MCS influences, as shown in Fig. 5.The relationship of frequency domain density and scheduled bandwidth and/or MCS that Fig. 5 is PTRS.In Fig. 5
A, b, c ..., o according to the actual situation depending on, it is possible to different situations are different.
In this example, the time domain density of the PTRS and/or frequency domain density can pass through RRC signaling, the control of MAC
The downlink signaling of the scheduling of resource of unit processed, Downlink Control Information DCI and/or user equipment, or by uplinks signalings such as UCI,
Dominant and/or recessive and/or dominant plus recessive mode is indicated respectively to opposite end.When local terminal is base station, then user equipment is
Opposite end；If local terminal is user equipment, base station is opposite end.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.Apparatus embodiments described above are merely indicative, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, such as: multiple units or components can combine, or
It is desirably integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed each composition portion
Mutual coupling or direct-coupling or communication connection is divided to can be through some interfaces, the INDIRECT COUPLING of equipment or unit
Or communication connection, it can be electrical, mechanical or other forms.
Above-mentioned unit as illustrated by the separation member, which can be or may not be, to be physically separated, aobvious as unit
The component shown can be or may not be physical unit, it can and it is in one place, it may be distributed over multiple network lists
In member；Some or all of units can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a processing module, it can also
To be each unit individually as a unit, can also be integrated in one unit with two or more units；It is above-mentioned
Integrated unit both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned include: movable storage device, it is read-only
Memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or
The various media that can store program code such as person's CD.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (13)
1. a kind of transmission method of phase tracking signal PTRS, which is characterized in that be applied in the first communication equipment, comprising:
S transport stream is selected to send PTRS from M transport stream, wherein it is described that S is equal to first communication equipment progress M
Transport stream transmits the quantity of used local oscillator.
2. the method according to claim 1, wherein
The method also includes:
When transmitting the PTRS on selecting S transport stream, the corresponding enterprising line number of running time-frequency resource of a transport stream of remaining M-S
According to transmission or carry out resource punching.
3. method according to claim 1 or 2, which is characterized in that
It is described to select S transport stream to send PTRS, including at least one of from M transport stream:
When a transmission panel is used only in first communication equipment and the transmission panel corresponds to a local oscillator,
A transport stream is selected from the corresponding multiple transport streams of the transmission panel, sends the PTRS；
When first communication equipment corresponds to a local oscillator using multiple transmission panels and each transmission panel
When shape, a transport stream is selected from the corresponding transport stream of transmission panel described in each, sends the PTRS；
When first communication equipment uses multiple transmission panels, and multiple transmissions panels are corresponding to a local oscillator
When, a transport stream is selected from the corresponding transport stream of multiple transmissions panels for sharing local oscillator, is sent out
Send the PTRS.
4. method according to claim 1 or 2, which is characterized in that
It is described to select S transport stream to send PTRS, including at least one of from M transport stream:
When sharing the transmission state attribute of multiple transport streams of the same local oscillator and meeting default condition of similarity, from sharing
Multiple transport streams of the same local oscillator arbitrarily select one, transmit the PTRS；
When sharing the transmission state attribute of multiple transport streams of the same local oscillator and being unsatisfactory for the default condition of similarity,
One, described in transmission is selected from the multiple transport streams for share the same local oscillator according to the transmission state attribute
PTRS。
5. according to the method described in claim 4, it is characterized in that,
It is described when the transmission state attribute of the multiple transport streams that share the same local oscillator is unsatisfactory for described presetting similar item
When part, one is selected from the multiple transport streams for share the same local oscillator according to the transmission state attribute, transmits institute
State PTRS, including at least one of:
From the multiple transport streams for sharing the same local oscillator, the highest transport stream of modulating-coding grade is selected to send
The PTRS；
From the multiple transport streams for sharing the same local oscillator, the scheduled maximum transport stream of bandwidth is selected to send institute
State PTRS；
From the multiple transport streams for sharing the same local oscillator, the smallest transmission of a subcarrier spacing is selected
Stream sends the PTRS.
6. method according to claim 1 or 2, which is characterized in that
The method also includes:
According at least one of the coded modulation grade of the M transport stream, scheduled bandwidth and subcarrier spacing, really
The transmission density of the fixed PTRS, wherein the transmission density includes: that time domain sends density and/or frequency domain transmission density；
It is described to select S transport stream to send PTRS from M transport stream, comprising:
From M described S transport streams of transport stream selection, the PTRS is sent according to the transmission density.
7. according to the method described in claim 6, it is characterized in that,
It is described to select the S transport streams from the M transport streams, according to the transmission density transmission PTRS, including with
It is at least one lower:
From the multiple transport streams for sharing the same local oscillator, the highest transport stream of modulating-coding grade is selected, is pressed
The PTRS is sent according to the time domain density；
From the multiple transport streams for sharing the same local oscillator, the maximum transport stream of scheduled bandwidth is selected, according to
Frequency domain density sends the PTRS；
From the multiple transport streams for sharing the same local oscillator, the smallest transmission of a subcarrier spacing is selected
Stream sends the PTRS according to the time domain density.
8. according to the method described in claim 6, it is characterized in that,
The time domain density and the modulating-coding grade are positively correlated；
And/or
The frequency domain density and the modulating-coding grade are positively correlated；
And/or
The frequency domain density and the scheduled bandwidth are negatively correlated；
And/or
The time domain density and the subcarrier spacing are negatively correlated；
And/or
The frequency domain density and the subcarrier spacing are negatively correlated.
9. a kind of transmission method of phase tracking signal PTRS, which is characterized in that be applied in the second communication equipment, comprising:
S transport stream is selected to receive PTRS from M transport stream, wherein S is equal to the first communication equipment and carries out the M transmission
Spread the quantity of defeated used local oscillator.
10. according to the method described in claim 9, it is characterized in that,
The method also includes:
When receiving the PTRS on selecting S transport stream, received from the corresponding running time-frequency resource of a transport stream of remaining M-S
Data do not receive data on the corresponding running time-frequency resource of the described transport stream of remaining M-S.
11. a kind of communication equipment characterized by comprising
Transceiver, for carrying out information exchange with other communication equipments；
First processor is connected with the transceiver, for realizing that claims 1 to 10 is any by executing computer program
The method that item provides.
12. a kind of communication equipment characterized by comprising second processor and computer program；
The second processor, for realizing the side that any one of claims 1 to 10 provides by executing the computer program
Method.
13. a kind of computer storage medium, the computer storage medium is stored with computer program, the computer program quilt
After processor executes, the method that any one of claims 1 to 10 provides can be realized.
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| WO2020238530A1 (en) * | 2019-05-27 | 2020-12-03 | Qualcomm Incorporated | Phase tracking reference signal configuration for a random access procedure |
| CN112583759A (en) * | 2019-09-27 | 2021-03-30 | 华为技术有限公司 | Information transmission method and communication device |
| WO2021128151A1 (en) * | 2019-12-26 | 2021-07-01 | 华为技术有限公司 | Method and device for transmitting phase tracking reference signal |
| WO2022116890A1 (en) * | 2020-12-02 | 2022-06-09 | 维沃移动通信有限公司 | Method and apparatus for estimating phase noise parameter, and user equipment and base station |
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| CN111836368A (en) * | 2019-04-16 | 2020-10-27 | 华为技术有限公司 | Method and device for data transmission |
| WO2020238530A1 (en) * | 2019-05-27 | 2020-12-03 | Qualcomm Incorporated | Phase tracking reference signal configuration for a random access procedure |
| CN112583759A (en) * | 2019-09-27 | 2021-03-30 | 华为技术有限公司 | Information transmission method and communication device |
| WO2021128151A1 (en) * | 2019-12-26 | 2021-07-01 | 华为技术有限公司 | Method and device for transmitting phase tracking reference signal |
| WO2022116890A1 (en) * | 2020-12-02 | 2022-06-09 | 维沃移动通信有限公司 | Method and apparatus for estimating phase noise parameter, and user equipment and base station |
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| CN109217992B (en) | 2022-02-11 |
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