CN110351775A - Wave beam instruction processing method and system in 5G communication - Google Patents
Wave beam instruction processing method and system in 5G communication Download PDFInfo
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- CN110351775A CN110351775A CN201910711885.9A CN201910711885A CN110351775A CN 110351775 A CN110351775 A CN 110351775A CN 201910711885 A CN201910711885 A CN 201910711885A CN 110351775 A CN110351775 A CN 110351775A
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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
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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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
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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Abstract
This application discloses wave beam instruction processing method and systems in a kind of 5G communication, are related to mobile communication technology field, method includes: in high band, and base station sends data by way of beam scanning；After terminal access, base station and terminal are established beam link according to uplink and downlink measurement result and are carried out data transmission；In time slot N-1, base station is carried out data transmission using the first MCS by the first wave beam with terminal；In time slot N, wave beam is adjusted to the second wave beam by base station, determines GAP duration；The first particular time-slot and the second particular time-slot are selected, the first particular time-slot is located in GAP duration, in the first particular time-slot, sends PDSCH data to terminal by the first wave beam using lesser 2nd MCS；In the second particular time-slot, the second wave beam is passed through to terminal active retransmission PDSCH data using biggish 3rd MCS.Such scheme can efficiently use the resource in GAP, guarantee the effective rate of utilization of resource, guarantee the receptivity of data.
Description
Technical field
This application involves mobile communication technology fields, specifically, being related to wave beam instruction processing method in a kind of 5G communication
And system.
Background technique
With the commercialization of fourth generation mobile communication technology and the sustainable growth of mobile service, had begun in world wide
Research work for the 5th third-generation mobile communication technology (5th-Generation, 5G).5G is a kind of leading to for multi-technical fusion
Letter meets the needs of extensive data, connection business by the change and innovation of technology.In RAN#71 meeting, third
It has set up for partner program (3rd Generation Partnership Project, 3GPP) and has newly eated dishes without rice or wine to study about 5G
Research project (study item, SI).The 5G of division according to to(for) line business, 3GPP is mainly from enhanced wireless broadband
(enhanced mobile broadband, eMBB), low time delay high reliable communication (ultra-reliable low-latency
Communications, URLLC) and large-scale machines type communication (massive machine type
Communications, mMTC) these three aspects to 5G, newly study by the technology of eating dishes without rice or wine.
In communication process, base station is notified by way of RRC signaling or MAC CE under the DMRS and which of terminal PDCCH
Row RS is the relationship of QCL, is the relationship of QCL by TCI field indicating downlink PDSCH and which the downlink RS carried in DCI,
After terminal obtains above-mentioned instruction, it can be used for the adjustment of the reception wave beam of PDCCH and PDSCH.
But after the channel variation of terminal, base station needs to indicate the wave beam of PDSCH by carrying TCI in DCI.It is right
For terminal, after receiving downlink data, needs to carry out DCI decoding first, then just can determine how to update received wave
Beam, this will lead to the reception GAP phenomenon of PDSCH, i.e., terminal can not accurately update reception wave beam before obtaining TCI instruction,
To cause the decline of data receiver performance in this period.
Summary of the invention
In view of this, this application provides wave beam instruction processing method and systems in a kind of 5G communication, when can determine GAP
It is long, and carried out data transmission using lower 2nd MCS by the first wave beam in the first particular time-slot according to GAP duration, one
Aspect efficiently uses the resource in GAP, guarantees the effective rate of utilization of resource, on the other hand, additionally it is possible to wave beam have not been obtained in terminal
Utmostly guarantee the receptivity of data in the case where instruction.
In order to solve the above-mentioned technical problem, the application has following technical solution:
In a first aspect, the application provides wave beam instruction processing method in a kind of 5G communication, comprising:
In high band, base station sends SS Block and RMSI by way of beam scanning；After terminal access, base station and end
End is established beam link according to uplink and downlink measurement result and is carried out data transmission；
In time slot N-1, base station is carried out data transmission using the first MCS by the first wave beam with terminal, and wherein N is positive integer
And N >=2；
In time slot N, the measurement result that base station is reported according to terminal determines the send wave for needing to adjust downlink PDSCH data
Beam, transmission wave beam adjusted is the second wave beam, and sends DCI information to terminal, by the TCI field signals terminal in DCI,
GAP duration is determined according to terminal capability and parameter current collection simultaneously, when GAP, a length of terminal received PDCCH data
To the absolute time for completing TCI parsing；
According to GAP duration, the first particular time-slot and the second particular time-slot are selected, first particular time-slot is located at described
In the corresponding slot range of GAP duration, in first particular time-slot, sent by the first wave beam to terminal using the 2nd MCS
PDSCH data, the 2nd MCS is less than the first MCS；In second particular time-slot, second wave is passed through using the 3rd MCS
Beam is greater than the 2nd MCS to terminal active retransmission PDSCH data, the 3rd MCS；
After terminal receives downlink data, in first particular time-slot, PDSCH data are received using the first wave beam,
Simultaneously in the second particular time-slot, the PDSCH data of base station active retransmission are received by the second wave beam using the 3rd MCS；
After using the received data decoding failure of the first wave beam, using the active retransmission received PDSCH data into
Row HARQ merges, and obtains decoding result.
Optionally, in which:
When GAP duration is less than 1 time slot, it is assumed that time slot N includes continuous first subsymbol set and the second subsymbol
Set, the GAP duration are equal to the first subsymbol set, at this point, the first particular time-slot is the first subsymbol set,
Second particular time-slot is the second subsymbol set；
According to GAP duration, the first particular time-slot and the second particular time-slot are selected, in first particular time-slot, using the
Two MCS send PDSCH data to terminal by the first wave beam, and the 2nd MCS is less than the first MCS；When described second is specific
Gap, using the 3rd MCS by second wave beam to terminal active retransmission PDSCH data, further are as follows:
In the first subsymbol set, PDSCH data are sent to terminal by the first wave beam using the 2nd MCS；Second
Subsymbol set passes through the second wave beam to terminal active retransmission PDSCH data using the 3rd MCS；Transmission two is independent simultaneously
DCI indicates the time-frequency location of two scheduling to terminal.
Optionally, in which:
After terminal receives downlink data, in first particular time-slot, using the first wave beam reception data, while
Second particular time-slot receives the PDSCH data of base station active retransmission using the 3rd MCS, further by the second wave beam are as follows:
After terminal receives downlink data, blind examination DCI, and at the end of the first subsymbol set complete TCI parsing and
Receive the adjustment of wave beam；Meanwhile in the first subsymbol set, data are received using the first wave beam；In the second subsymbol set
It is interior, the PDSCH data of base station active retransmission are received by the second wave beam using the 3rd MCS.
Optionally, in which:
Assuming that it includes an assemble of symbol that each time slot is corresponding, it is described as GAP when a length of integer assemble of symbol
First particular time-slot be the corresponding each assemble of symbol of GAP duration, second particular time-slot be GAP duration it is corresponding last
A time slot after a assemble of symbol；
According to GAP duration, the first particular time-slot and the second particular time-slot are selected, in first particular time-slot, using the
Two MCS send PDSCH data to terminal by the first wave beam, and the 2nd MCS is less than the first MCS；When described second is specific
Gap, using the 3rd MCS by second wave beam to terminal active retransmission PDSCH data, further are as follows:
In the corresponding each assemble of symbol of GAP duration, sent respectively to terminal solely using the 2nd MCS by the first wave beam
Vertical PDSCH；A time slot after the corresponding last symbol set of GAP duration passes through the second wave using the 3rd MCS
Beam is to terminal active retransmission PDSCH data.
Optionally, in which:
After terminal receives downlink data, in first particular time-slot, using the first wave beam reception data, while
Second particular time-slot receives the PDSCH data of base station active retransmission using the 3rd MCS, further by the second wave beam are as follows:
After terminal receives downlink data, blind examination DCI, and complete TCI's at the end of GAP duration corresponding assemble of symbol
Parsing and the adjustment for receiving wave beam；Meanwhile in the corresponding assemble of symbol of GAP duration, connect using the 2nd MCS by the first wave beam
Receive data；A time slot after the corresponding last symbol set of GAP duration passes through the second wave beam using the 3rd MCS
Receive the PDSCH data of base station active retransmission.
Second aspect, the application provide wave beam instruction processing system in a kind of 5G communication, comprising: base station and terminal；
The base station, for sending SS Block and RMSI by way of beam scanning, and in terminal in the high frequency period
After access, beam link is established according to uplink and downlink measurement result and is carried out data transmission；In time slot N-1, pass through the using the first MCS
One wave beam carries out data transmission, and wherein N is integer and N >=2；In time slot N, base station determines need according to the measurement result that terminal reports
The transmission wave beam of downlink PDSCH data is adjusted, transmission wave beam adjusted is the second wave beam, and sends DCI information to terminal,
GAP duration is determined by the TCI field signals terminal in DCI, while according to terminal capability and parameter current collection, when the GAP
A length of terminal receives PDCCH data to the absolute time for completing TCI parsing；It is also used to select first according to GAP duration
Particular time-slot and the second particular time-slot, first particular time-slot is located in the corresponding slot range of the GAP duration, described
First particular time-slot sends PDSCH data to terminal by the first wave beam using the 2nd MCS, and the 2nd MCS is less than first
MCS；In second particular time-slot, using the 3rd MCS by second wave beam to terminal active retransmission PDSCH data, institute
The 3rd MCS is stated greater than the 2nd MCS；
The terminal, for receiving downlink data, and after receiving downlink data, in first particular time-slot,
PDSCH data are received using the first wave beam, while in the second particular time-slot, base station is received by the second wave beam using the 3rd MCS
The PDSCH data of active retransmission；After data decoding failure received using the first wave beam, the terminal utilizes the master received
The dynamic PDSCH data retransmitted carry out HARQ merging, obtain decoding result.
Optionally, in which:
When GAP duration is less than 1 time slot, it is assumed that time slot N includes continuous first subsymbol set and the second subsymbol
Set, the GAP duration are equal to the first subsymbol set, at this point, the first particular time-slot is the first subsymbol set,
Second particular time-slot is the second subsymbol set；
The base station is used in the first subsymbol set, sends PDSCH to terminal by the first wave beam using the 2nd MCS
Data；In the second subsymbol set, the second wave beam is passed through to terminal active retransmission PDSCH data using the 3rd MCS；It sends simultaneously
Two independent DCI indicate the time-frequency location of two scheduling to terminal.
Optionally, in which:
The terminal is further used for after receiving downlink data, blind examination DCI, and at the end of the first subsymbol set
It completes the parsing of TCI and receives the adjustment of wave beam；Meanwhile in the first subsymbol set, the first wave beam is passed through using the 2nd MCS
Receive data；In the second subsymbol set, the PDSCH number of base station active retransmission is received by the second wave beam using the 3rd MCS
According to.
Optionally, in which:
Assuming that it includes an assemble of symbol that each time slot is corresponding, and as GAP when a length of integer assemble of symbol, described first
Particular time-slot is the corresponding each assemble of symbol of GAP duration, and second particular time-slot is the last one corresponding symbol of GAP duration
Number set after a time slot；
The base station is further used in the corresponding each time slot of GAP duration, using the 2nd MCS by the first wave beam to
Terminal sends independent PDSCH respectively；A time slot after the corresponding last symbol set of GAP duration, using
Three MCS pass through the second wave beam to terminal active retransmission PDSCH data.
Optionally, in which:
The terminal is further used for after receiving downlink data, blind examination DCI, and in the corresponding glossary of symbols of GAP duration
The parsing of TCI is completed at the end of conjunction and receives the adjustment of wave beam；Meanwhile in the corresponding assemble of symbol of GAP duration, using second
MCS receives data by the first wave beam；A time slot after the corresponding last symbol set of GAP duration, using
Three MCS receive the PDSCH data of base station active retransmission by the second wave beam.
Compared with prior art, wave beam instruction processing method and system in 5G communication described herein, have reached as follows
Effect:
Wave beam indicates in processing method and system in 5G communication provided by the present application, and in time slot N-1, base station and terminal are used
Higher first MCS (modulating-coding grade) is carried out data transmission by the first wave beam, and in time slot N, base station is by downlink PDSCH number
According to transmission wave beam be adjusted to the second wave beam, and notify terminal.In particular, base station can be according to terminal capability and parameter current collection
Determine GAP duration, according to GAP duration, at the first particular time-slot (i.e. the corresponding time slot of GAP duration), base station is using lower the
Two MCS simultaneously send data to terminal by the first wave beam, and accordingly, terminal receives data using the first wave beam, and such mode has
Conducive to the reliability for guaranteeing data transmission, and it can utmostly guarantee data in the case where wave beam instruction has not been obtained in terminal
Receptivity；In the second particular time-slot, base station passes through the second wave beam to terminal active retransmission number using higher 3rd MCS
According to accordingly, terminal receives data using the second wave beam.After the data decoding in GAP fails, terminal leads it using base station
The dynamic data that retransmit carry out HARQ merging, to enhance the performance of HARQ merging, decoding performance are promoted, thus when advantageously reducing GAP
The error rate of data in long.Compared with prior art, the application can efficiently use the resource in GAP duration, guarantee the utilization of resources
Rate, while can utmostly guarantee the receptivities of data in the case where wave beam instruction has not been obtained in terminal.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 show a kind of flow chart of wave beam instruction processing method in the communication of 5G provided by the embodiment of the present application；
Fig. 2 show a kind of schematic diagram of the base station beam instruction processing when GAP duration is less than 1 time slot；
A kind of schematic diagram of base station beam instruction processing when Fig. 3 show a length of integer assemble of symbol as GAP.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within the acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.Specification subsequent descriptions are to implement the better embodiment of the application, so described
Description is being not intended to limit the scope of the present application for the purpose of the rule for illustrating the application.The protection scope of the application
As defined by the appended claims.
The term being likely to occur in the application will be explained below.
5G:5th-Generation, the 5th third-generation mobile communication technology；
SS Block:synchronization signal block, synchronization blocks；
RMSI:Remaining Minimum System Information, minimum system information；
MCS:Modulation and coding scheme, modulating-coding grade；
PDSCH:Physical downlink shared channel, DSCH Downlink Shared Channel；
PDCCH:Physical downlink control channel, down control channel；
DCI:Downlink control information, Downlink Control Information；
TCI:Transmission Configuration Indicator, transmission configuration instruction；
HARQ:Hybrid automatic repeat request mixes retransmission request；
QCL:Quasi-colocation, it is quasi- co-located；
EMBB:enhanced mobile broadband, enhanced wireless broadband；
URLLC:ultra-reliable low-latency communications, low time delay high reliable communication；
MMTC:massive machine type communications, large-scale machines type communication.
In 3GPP R15, increase wave beam management function, it is therefore an objective to obtained by the process of L1/L2 and keep base station and
Wave beam between terminal completes sending and receiving for uplink and downlink data by corresponding wave beam, to improve link performance.By
Constantly changing in the wireless channel in practical communication between base station and terminal, therefore wave beam management needs to include following
Basic function module: wave beam is determining, wave beam measurement, wave beam reports, beam scanning and wave beam indicate.Wherein, wave beam determination is
Refer to that TRP or UE selects the transmitting-receiving wave beam of oneself；Wave beam measurement refers to that TRP or UE measurement receives the characteristic of beamformed signals；
Wave beam relevant information that be UE report UE to select based on the result that wave beam measures that wave beam reports；Beam scanning then refers in a timing
Between be spaced in use scheduled method, TRP or UE are sent and/or are received to cover the operation of some area of space using wave beam；
Wave beam instruction is that network instruction UE can carry out data transmission/reception with which wave beam.
In practical communication, since the position of terminal often changes, base station needs period/aperiodic configurating terminal
It carries out wave beam measurement and reports.Reported result based on terminal, base station indicate currently transmitted PDSCH data when downlink is sent
Beam information, terminal according to the instruction of base station adjust receive wave beam, to guarantee the receptivity of data.As can be seen that
During this, the wave beam instruction of base station is played an important role, and specific wave beam indicating means is the weight of Current standards discussion
Want subject under discussion.
In communication process, base station is notified by way of RRC signaling or MAC CE under the DMRS and which of terminal PDCCH
Row RS is the relationship of QCL, is the relationship of QCL by TCI field indicating downlink PDSCH and which the downlink RS carried in DCI,
After terminal obtains above-mentioned instruction, it can be used for the adjustment of the reception wave beam of PDCCH and PDSCH.
But after the channel variation of terminal, base station needs to indicate the wave beam of PDSCH by carrying TCI in DCI.It is right
For terminal, after receiving downlink data, needs to carry out DCI decoding first, then just can determine how to update received wave
Beam, this will lead to the reception GAP phenomenon of PDSCH, i.e., terminal can not accurately update reception wave beam before obtaining TCI instruction,
To cause the decline of data receiver performance in this period.
In view of this, this application provides wave beam instruction processing method and systems in a kind of 5G communication, when can determine GAP
It is long, and carried out data transmission using lower 2nd MCS by the first wave beam in the first particular time-slot according to GAP duration, one
Aspect efficiently uses the resource in GAP, guarantees the effective rate of utilization of resource, on the other hand, additionally it is possible to wave beam have not been obtained in terminal
Utmostly guarantee the receptivity of data in the case where instruction.
It is described in detail below with reference to the drawings and specific embodiments.
Fig. 1 show a kind of flow chart of wave beam instruction processing method in the communication of 5G provided by the embodiment of the present application, asks
Referring to Fig. 1, wave beam indicates processing method in 5G communication provided herein, comprising:
Step 101, in high band, base station sends SS Block and RMSI by way of beam scanning；After terminal access,
Base station and terminal are established beam link according to uplink and downlink measurement result and are carried out data transmission；It should be noted that herein up and down
Row measurement result is obtained by the channel estimation to pilot signal, including RSRP, RSSI etc.；
Step 102, in time slot N-1, base station is carried out data transmission using the first MCS by the first wave beam with terminal, wherein N
For positive integer and N >=2；
Step 103, in time slot N, the determination of measurement result that base station is reported according to terminal needs to adjust downlink PDSCH data
Wave beam is sent, transmission wave beam adjusted is the second wave beam, and sends DCI information to terminal, logical by the TCI field in DCI
Know terminal, while GAP duration is determined according to terminal capability and parameter current collection, a length of terminal received PDCCH data and arrived when GAP
Complete the absolute time of TCI parsing；It should be noted that terminal capability mentioned by the application refers to the processing of terminal log evidence
Ability, fluxion, port number, maximum modulation grade comprising support etc.；
Step 104, according to GAP duration, select the first particular time-slot and the second particular time-slot, the first particular time-slot to be located at
In the corresponding slot range of GAP duration, in the first particular time-slot, PDSCH is sent to terminal by the first wave beam using the 2nd MCS
Data, the 2nd MCS is less than the first MCS；In the second particular time-slot, the second wave beam is passed through to terminal active retransmission using the 3rd MCS
PDSCH data, the 3rd MCS are greater than the 2nd MCS；
After step 105, terminal receive downlink data, in the first particular time-slot, PDSCH number is received using the first wave beam
According to, while in the second particular time-slot, the PDSCH data of base station active retransmission are received by the second wave beam using the 3rd MCS；
Step 106, after using the received data decoding failure of the first wave beam, utilize the active retransmission received
PDSCH data carry out HARQ merging, obtain decoding result.
In 5G communication provided by the present application in wave beam instruction processing method, in time slot N-1, base station and terminal are using higher
First MCS (modulating-coding grade) is carried out data transmission by the first wave beam；It is original when terminal is subjected to displacement relative to base station
When first wave beam is no longer desirable for the transmission of normal data, it is necessary to be adjusted to wave beam.In time slot N, base station is by downlink
The transmission wave beam of PDSCH data is adjusted to the second wave beam, and notifies terminal.In particular, base station according to terminal capability and can work as
Preceding parameter set determines GAP duration, and when GAP, a length of terminal received PDCCH data to the absolute time for completing TCI parsing；According to
GAP duration, in the first particular time-slot, base station sends data to terminal using lower 2nd MCS and by the first wave beam, corresponding
Ground, terminal receive data using the first wave beam, and above-mentioned first particular time-slot is located in slot range corresponding to GAP duration, such as
The region GAP has been carried out reasonable utilization by this mode, is not suspended the scheduling of data, but is carried out data by lower MCS
Transmission, thus be conducive to utmostly guarantee the receptivities of data in the case where wave beam instruction has not been obtained in terminal, favorably
In the real-time communication for promoting user.
In the second particular time-slot, base station uses higher 3rd MCS by the second wave beam to terminal active retransmission data, right
Ying Di, terminal receive data using the second wave beam, are so conducive to improving data transmission efficiency.When the data decoding in GAP loses
After losing, terminal carries out HARQ merging to its active retransmission data using base station, to enhance the performance of HARQ merging, promotes decoding property
Can, to advantageously reduce the error rate of data in GAP duration.Compared with prior art, the application can efficiently use GAP duration
Interior resource guarantees resource utilization, while can utmostly guarantee data in the case where wave beam instruction has not been obtained in terminal
Receptivity.
It should be noted that the 2nd MCS that the application refers to refers to that modulating-coding grade is lower less than the first MCS, the
The corresponding modulation system of two MCS and code rate are lower than the first MCS.Similarly, when the 3rd MCS is greater than two MCS, third is referred to
The modulating-coding of MCS is higher ranked.In addition, PDSCH and PDCCH are sent simultaneously when usually base station sends data to terminal,
After terminal receives data, PDSCH could be further parsed after parsing the content except PDCCH.
Above-described embodiment will be further described by concrete case below.
(1) base station quantifies GAP length according to terminal capability and set of system parameters.GAP length after quantization can be symbol
Number is also possible to number of time slot, the length reacted when in DCI carry TCI field when, terminal from receive PDCCH data to
Complete the absolute time between TCI parsing；
(2) when the GAP length after quantization is not integer time slot, such as 0.5 time slot is then dispatched using non-slot grade,
Independent TB, while the reliability in order to guarantee data are sent in the data area corresponding downlink GAP, using lower MCS,
It is sent by the wave beam before default wave beam or adjustment；
(3) when the GAP length after quantization is integer time slot, such as 2 time slots are then sent in corresponding each time slot
Independent TB equally samples lower MCS, is sent by the wave beam before default wave beam or adjustment；
(4) on the basis of (2) and (3), when terminal is completed to receive wave beam adjustment, i.e., the data area except GAP leads to
The mode for crossing active retransmission sends the different RV versions of data in GAP, for improve data transfer efficiency, using high MCS grade
Non-adaptive transmission；
(5) after terminal is resolved to TCI information, using the wave beam reception data before adjustment in the region GAP, while
Data area after GAP receives active retransmission data using wave beam adjusted, after the data decoding in GAP fails, utilizes
Active retransmission data carry out HARQ and merge to promote decoding performance.
In this way, wave beam indicates processing method in 5G communication provided herein, the resource in GAP can be efficiently used,
Be conducive to be promoted the utilization rate of resource, while also helping the reliability for promoting data transmission in GAP, guarantees that the communication of user is real
Shi Xing, but also can utmostly guarantee the receptivity of data in the case where wave beam instruction has not been obtained in terminal.
Optionally, Fig. 2 show a kind of schematic diagram of the base station beam instruction processing when GAP duration is less than 1 time slot, asks
Referring to fig. 2, when GAP duration is less than 1 time slot, it is assumed that time slot N includes continuous first subsymbol set and the second subsymbol
Set, GAP duration are equal to the first subsymbol set, at this point, the first particular time-slot is the first subsymbol set, the second particular time-slot
For the second subsymbol set；
At this point, according to GAP duration, the first particular time-slot and the second particular time-slot are selected, first in above-mentioned steps 104
Particular time-slot sends PDSCH data to terminal by the first wave beam using the 2nd MCS, and the 2nd MCS is less than the first MCS；Second
Particular time-slot, using the 3rd MCS by the second wave beam to terminal active retransmission PDSCH data, further are as follows:
In the first subsymbol set, PDSCH data are sent to terminal by the first wave beam using the 2nd MCS；Second
Subsymbol set passes through the second wave beam to terminal active retransmission PDSCH data using the 3rd MCS；Transmission two is independent simultaneously
DCI indicates the time-frequency location of two scheduling to terminal.
Optionally, in above-mentioned steps 105, after terminal receives downlink data, in the first particular time-slot, using first wave
Beam receives data, while in the second particular time-slot, receiving the PDSCH of base station active retransmission by the second wave beam using the 3rd MCS
Data, further are as follows:
After terminal receives downlink data, blind examination DCI, and at the end of the first subsymbol set complete TCI parsing and
Receive the adjustment of wave beam；Meanwhile in the first subsymbol set, data are received using the first wave beam；In the second subsymbol set
It is interior, the PDSCH data of base station active retransmission are received by the second wave beam using the 3rd MCS.
The embodiment is illustrated below by way of concrete case, it is assumed that include downlink control area and the in time slot N
One subsymbol set and the second subsymbol set, when GAP the corresponding time slot of a length of first subsymbol set, wave beam indicates processing side
Method are as follows:
1) in high band, base station sends SS Block and RMSI by way of beam scanning, after terminal access, base station and
Terminal establishes BPL (Beam Pair Link) according to uplink and downlink measurement result and carries out normal data transmission；
2) Fig. 2 is referred to, in time slot N, the measurement result determination that base station is reported according to terminal needs to adjust downlink PDSCH's
Wave beam is sent, and by the TCI field signals terminal in DCI, while according to terminal capability and parameter current collection, determining the area GAP
Domain is the first subsymbol set (for example, 7 symbols), therefore is led in time slot N first half (corresponding first subsymbol set)
It crosses default wave beam and sends just biography TB0, sent in the wave beam of time slot N latter half (corresponding second subsymbol set) by adjusting after
Active retransmission TB0, while two independent scheduling DCI are sent to terminal, indicate the time-frequency location of two scheduling；
3) after terminal receives downlink data, blind examination DCI, and half slot (the corresponding first subsymbol set) knot before time slot N
The parsing of TCI is completed when beam and receives the adjustment of wave beam.During this period, terminal is received using the wave beam before adjustment and just passes TB0 number
According to；
4) it is based on reception wave beam adjusted, terminal collects base in subframe N latter half (corresponding second subsymbol set)
The TB0 to stand to its active retransmission；
5) TB0 decoding result failure is just passed, terminal carries out HARQ merging using active retransmission TB0, obtains final decoding
As a result.
Optionally, a kind of signal of base station beam instruction processing when Fig. 3 show a length of integer assemble of symbol as GAP
Figure, it is assumed that corresponding each time slot includes an assemble of symbol, as GAP when a length of integer assemble of symbol, the first particular time-slot
For the corresponding each assemble of symbol of GAP duration, the second particular time-slot is after the corresponding last symbol set of GAP duration
One time slot；
In above-mentioned steps 104, according to GAP duration, the first particular time-slot and the second particular time-slot are selected, when first is specific
Gap sends PDSCH data to terminal by the first wave beam using the 2nd MCS, and the 2nd MCS is less than the first MCS；When second is specific
Gap, using the 3rd MCS by the second wave beam to terminal active retransmission PDSCH data, further are as follows:
In the corresponding each assemble of symbol of GAP duration, sent respectively to terminal solely using the 2nd MCS by the first wave beam
Vertical PDSCH；A time slot after the corresponding last symbol set of GAP duration passes through the second wave using the 3rd MCS
Beam is to terminal active retransmission PDSCH data.
Optionally, in above-mentioned steps 105, after terminal receives downlink data, in the first particular time-slot, using first wave
Beam receives data, while in the second particular time-slot, receiving the PDSCH of base station active retransmission by the second wave beam using the 3rd MCS
Data, further are as follows:
After terminal receives downlink data, blind examination DCI, and complete TCI's at the end of GAP duration corresponding assemble of symbol
Parsing and the adjustment for receiving wave beam；Meanwhile in the corresponding assemble of symbol of GAP duration, connect using the 2nd MCS by the first wave beam
Receive data；A time slot after the corresponding last symbol set of GAP duration passes through the second wave beam using the 3rd MCS
Receive the PDSCH data of base station active retransmission.
The embodiment is illustrated below by way of concrete case, it is assumed that a length of assemble of symbol when GAP, wave beam instruction
Processing method are as follows:
1) in high band, base station sends SS Block and RMSI by way of beam scanning, after terminal access, base station and
Terminal establishes BPL (Beam Pair Link) according to uplink and downlink measurement result and carries out normal data transmission；
2) in time slot N, the measurement result that base station is reported according to terminal determines the transmission wave beam for needing to adjust downlink PDSCH,
And by the TCI field signals terminal in DCI, while according to terminal capability and parameter current collection, when determining that the region GAP is one
The corresponding assemble of symbol of gap N, therefore PDSCH is sent by default wave beam in time slot N, in wave of the time slot N+1 by adjusting after
Beam sends active retransmission data, as shown in Figure 3；
3) after terminal receives downlink data, blind examination DCI, and complete the parsing of TCI the time slot N at the end of and receive wave beam
Adjustment.During this period, terminal receives the downlink data of subframe N using the wave beam before adjustment；
4) it is based on reception wave beam adjusted, terminal collects active retransmission data in subframe N+1；
5) subframe N decodes result failure, and terminal carries out HARQ merging using the data of subframe N+1, obtains final decoding
As a result.
It should be noted that when GAP duration is greater than a time slot and is non-integer time slot, then it is preceding continuous whole
Several time slots (corresponding first particular time-slot) send data to terminal by the first wave beam using lower 2nd MCS, posterior
Non-integer time slot (corresponding second particular time-slot) uses second wave beam of higher 3rd MCS by adjusting after to terminal active
Retransmit data.
To sum up, present application addresses in wave beam instruction as caused by time delay the problem of Data reception errors, the application institute
Wave beam indicates processing method in the 5G communication of offer, determines GAP duration by terminal capability and set of system parameters first, then exists
The corresponding at least partly time slot of GAP duration reduces code rate to CBG or TB, and carries out the active weight of data in next scheduling instance
It passes, the performance that enhancing HARQ merges, to advantageously reduce the error rate of data in GAP duration.
Based on the same inventive concept, the application also provides wave beam instruction processing system in a kind of 5G communication, comprising: base station and
Terminal；
Base station is accessed in the high frequency period, sending SS Block and RMSI by way of beam scanning, and in terminal
Afterwards, beam link is established according to uplink and downlink measurement result to carry out data transmission；In time slot N-1, first wave is passed through using the first MCS
Beam carries out data transmission, and wherein N is integer and N >=2；In time slot N, the measurement result determination that base station is reported according to terminal needs to adjust
The transmission wave beam of whole downlink PDSCH data, transmission wave beam adjusted is the second wave beam, and sends DCI information to terminal, is passed through
TCI field signals terminal in DCI, while GAP duration is determined according to terminal capability and parameter current collection, when GAP a length of terminal
PDCCH data are received to the absolute time for completing TCI parsing；It is also used to according to GAP duration, selects the first particular time-slot and the
Two particular time-slots, the first particular time-slot are located in the corresponding slot range of GAP duration, in the first particular time-slot, using the 2nd MCS
PDSCH data are sent to terminal by the first wave beam, the 2nd MCS is less than the first MCS；In the second particular time-slot, using the 3rd MCS
By the second wave beam to terminal active retransmission PDSCH data, the 3rd MCS is greater than the 2nd MCS；
Terminal, for receiving downlink data, and after receiving downlink data, in the first particular time-slot, using first
Wave beam receives PDSCH data, while in the second particular time-slot, receiving base station active retransmission by the second wave beam using the 3rd MCS
PDSCH data；After data decoding failure received using the first wave beam, terminal utilizes the active retransmission received
PDSCH data carry out HARQ merging, obtain decoding result.
In 5G communication provided by the present application in wave beam instruction processing system, in time slot N-1, base station and terminal are using higher
First MCS (modulating-coding grade) is carried out data transmission by the first wave beam；It is original when terminal is subjected to displacement relative to base station
When first wave beam is no longer desirable for the transmission of normal data, it is necessary to be adjusted to wave beam.In time slot N, base station is by downlink
The transmission wave beam of PDSCH data is adjusted to the second wave beam, and notifies terminal.In particular, base station according to terminal capability and can work as
Preceding parameter set determines GAP duration, and when GAP is a length of when carrying TCI field in DCI, and terminal receives PDCCH data to completion
The absolute time of TCI parsing；According to GAP duration, in the first particular time-slot, base station is using lower 2nd MCS and passes through first
Wave beam sends data to terminal, and accordingly, terminal receives data using the first wave beam, when above-mentioned first particular time-slot is located at GAP
In long corresponding slot range, in this manner, the region GAP has been carried out reasonable utilization, do not suspend the scheduling of data, and
It is the transmission of data to be carried out by lower MCS, thus be conducive in the case where wave beam instruction has not been obtained in terminal utmostly
The receptivity for guaranteeing data is conducive to the real-time communication for promoting user.
In the second particular time-slot, base station passes through the second wave beam to terminal active retransmission data using higher 3rd MCS, corresponds to
Ground, terminal receive data using the second wave beam.After the data decoding in GAP fails, terminal is using base station to its active retransmission
Data carry out HARQ merging, to enhance the performance of HARQ merging, promote decoding performance, to advantageously reduce number in GAP duration
According to error rate.Compared with prior art, the application can efficiently use the resource in GAP duration, guarantee resource utilization, simultaneously
It can utmostly guarantee the receptivities of data in the case where wave beam instruction has not been obtained in terminal.
Optionally, when GAP duration is less than 1 time slot, it is assumed that time slot N includes continuous first subsymbol set and second
Subsymbol set, GAP duration are equal to the first subsymbol set, at this point, the first particular time-slot is the first subsymbol set, second is special
Timing gap is the second subsymbol set；
Base station is used in the first subsymbol set, sends PDSCH number to terminal by the first wave beam using the 2nd MCS
According to；In the second subsymbol set, the second wave beam is passed through to terminal active retransmission PDSCH data using the 3rd MCS；Two are sent simultaneously
A independent DCI indicates the time-frequency location of two scheduling to terminal.
Optionally, when GAP duration is less than 1 time slot, terminal is further used for after receiving downlink data, blind examination
DCI, and complete the parsing of TCI at the end of the first subsymbol set and receive the adjustment of wave beam；Meanwhile in the first subsymbol collection
In conjunction, data are received by the first wave beam using lower 2nd MCS；In the second subsymbol set, using higher third
MCS receives the PDSCH data of base station active retransmission by the second wave beam.
Optionally, it is assumed that corresponding each time slot includes an assemble of symbol, as GAP when a length of integer assemble of symbol,
First particular time-slot is the corresponding each assemble of symbol of GAP duration, and the second particular time-slot is the last one corresponding symbol of GAP duration
Number set after a time slot；
Base station is further used in the corresponding each time slot of GAP duration, passes through the first wave beam to terminal using the 2nd MCS
Independent PDSCH is sent respectively；A time slot after the corresponding last symbol set of GAP duration, using the 3rd MCS
By the second wave beam to terminal active retransmission PDSCH data.
Optionally, as GAP when a length of integer time slot, terminal is further used for after receiving downlink data, blind examination
DCI, and complete the parsing of TCI at the end of GAP duration corresponding assemble of symbol and receive the adjustment of wave beam；Meanwhile in GAP
In long corresponding assemble of symbol, data are received by the first wave beam using lower 2nd MCS；It is corresponding last in GAP duration
A time slot after one assemble of symbol receives base station active retransmission by the second wave beam using higher 3rd MCS
PDSCH data.
When above-described embodiment gives GAP duration less than 1 time slot and when GAP when a length of integer assemble of symbol, base
The wave beam between terminal of standing indicates processing method.It should be noted that when GAP duration is greater than a time slot and is non-integer
When gap, then preceding continuous integer time slot (corresponding first particular time-slot) passes through the first wave beam using lower 2nd MCS
Send data to terminal, posterior non-integer time slot (corresponding second particular time-slot) higher 3rd MCS of use by adjusting
The second wave beam afterwards is to terminal active retransmission data.
As can be seen from the above embodiments beneficial effect existing for the application is:
Wave beam indicates in processing method and system in 5G communication provided by the present application, and in time slot N-1, base station and terminal are used
Higher first MCS (modulating-coding grade) is carried out data transmission by the first wave beam, and in time slot N, base station is by downlink PDSCH number
According to transmission wave beam be adjusted to the second wave beam, and notify terminal.In particular, base station can be according to terminal capability and parameter current collection
Determine GAP duration, according to GAP duration, in the first particular time-slot, base station using lower 2nd MCS and by the first wave beam to
Terminal sends data, and accordingly, terminal receives data using the first wave beam, and such mode advantageously ensures that the reliable of data transmission
Property, and can utmostly guarantee the receptivities of data in the case where wave beam instruction has not been obtained in terminal；It is specific second
Time slot, base station is by the second wave beam to terminal active retransmission data, and accordingly, terminal receives data using the second wave beam.Work as GAP
After interior data decoding failure, terminal carries out HARQ merging to its active retransmission data using base station, to enhance HARQ merging
Performance promotes decoding performance, to advantageously reduce the error rate of data in GAP duration.Compared with prior art, the application can
The resource in GAP duration is efficiently used, guarantees resource utilization, while can be in the case where wave beam instruction has not been obtained in terminal most
The receptivity of big guarantee data.
Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through within that scope of the inventive concept describe herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of appended claims.
Claims (10)
1. wave beam indicates processing method in a kind of 5G communication characterized by comprising
In high band, base station sends SS Block and RMSI by way of beam scanning；After terminal access, base station and terminal root
Beam link is established according to uplink and downlink measurement result to carry out data transmission；
In time slot N-1, base station is carried out data transmission using the first MCS by the first wave beam with terminal, and wherein N is positive integer and N
≥2；
In time slot N, the measurement result that base station is reported according to terminal determines the transmission wave beam for needing to adjust downlink PDSCH data, adjusts
Transmission wave beam after whole is the second wave beam, and to terminal transmission DCI information, by the TCI field signals terminal in DCI, simultaneously
GAP duration is determined according to terminal capability and parameter current collection, and when GAP, a length of terminal received PDCCH data to complete
The absolute time parsed at TCI；
According to GAP duration, the first particular time-slot and the second particular time-slot are selected, when first particular time-slot is located at the GAP
In long corresponding slot range, in first particular time-slot, PDSCH is sent to terminal by the first wave beam using the 2nd MCS
Data, the 2nd MCS is less than the first MCS；In second particular time-slot, using the 3rd MCS by second wave beam to
Terminal active retransmission PDSCH data, the 3rd MCS are greater than the 2nd MCS；
After terminal receives downlink data, in first particular time-slot, PDSCH data are received using the first wave beam, simultaneously
In the second particular time-slot, the PDSCH data of base station active retransmission are received by the second wave beam using the 3rd MCS；
After data decoding failure received using the first wave beam, carried out using the PDSCH data of the active retransmission received
HARQ merges, and obtains decoding result.
2. wave beam indicates processing method in a kind of 5G communication according to claim 1, which is characterized in that when GAP duration is small
When 1 time slot, it is assumed that time slot N includes continuous first subsymbol set and the second subsymbol set, and the GAP duration is equal to
The first subsymbol set, at this point, the first particular time-slot is the first subsymbol set, second particular time-slot is institute
State the second subsymbol set；
According to GAP duration, the first particular time-slot and the second particular time-slot are selected, in first particular time-slot, using the 2nd MCS
PDSCH data are sent to terminal by the first wave beam, the 2nd MCS is less than the first MCS；In second particular time-slot, adopt
With the 3rd MCS by second wave beam to terminal active retransmission PDSCH data, further are as follows:
In the first subsymbol set, PDSCH data are sent to terminal by the first wave beam using the 2nd MCS；In the second son symbol
Number set, using the 3rd MCS by the second wave beam to terminal active retransmission PDSCH data；Simultaneously send two independent DCI to
Terminal indicates the time-frequency location of two scheduling.
3. wave beam indicates processing method in a kind of 5G communication according to claim 2, which is characterized in that terminal receives down
After row data, in first particular time-slot, data are received using the first wave beam, while in the second particular time-slot, using the
Three MCS receive the PDSCH data of base station active retransmission by the second wave beam, further are as follows:
After terminal receives downlink data, blind examination DCI, and at the end of the first subsymbol set complete TCI parsing and reception
The adjustment of wave beam；Meanwhile in the first subsymbol set, data are received using the first wave beam；In the second subsymbol set, adopt
The PDSCH data of base station active retransmission are received by the second wave beam with the 3rd MCS.
4. wave beam indicates processing method in a kind of 5G communication according to claim 1, which is characterized in that assuming that each time slot
Corresponding includes an assemble of symbol, as GAP when a length of integer assemble of symbol, when first particular time-slot is GAP
Long corresponding each assemble of symbol, second particular time-slot are one after the corresponding last symbol set of GAP duration
A time slot；
According to GAP duration, the first particular time-slot and the second particular time-slot are selected, in first particular time-slot, using the 2nd MCS
PDSCH data are sent to terminal by the first wave beam, the 2nd MCS is less than the first MCS；In second particular time-slot, adopt
With the 3rd MCS by second wave beam to terminal active retransmission PDSCH data, further are as follows:
In the corresponding each assemble of symbol of GAP duration, sent respectively to terminal using the 2nd MCS by the first wave beam independent
PDSCH；A time slot after the corresponding last symbol set of GAP duration, using the 3rd MCS by the second wave beam to
Terminal active retransmission PDSCH data.
5. wave beam indicates processing method in a kind of 5G communication according to claim 4, which is characterized in that terminal receives down
After row data, in first particular time-slot, data are received using the first wave beam, while in the second particular time-slot, using the
Three MCS receive the PDSCH data of base station active retransmission by the second wave beam, further are as follows:
After terminal receives downlink data, blind examination DCI, and at the end of GAP duration corresponding assemble of symbol complete TCI parsing
With the adjustment for receiving wave beam；Meanwhile in the corresponding assemble of symbol of GAP duration, number is received by the first wave beam using the 2nd MCS
According to；A time slot after the corresponding last symbol set of GAP duration is received using the 3rd MCS by the second wave beam
The PDSCH data of base station active retransmission.
6. wave beam indicates processing system in a kind of 5G communication characterized by comprising base station and terminal；
The base station is accessed in the high frequency period, sending SS Block and RMSI by way of beam scanning, and in terminal
Afterwards, beam link is established according to uplink and downlink measurement result to carry out data transmission；In time slot N-1, first wave is passed through using the first MCS
Beam carries out data transmission, and wherein N is integer and N >=2；In time slot N, the measurement result determination that base station is reported according to terminal needs to adjust
The transmission wave beam of whole downlink PDSCH data, transmission wave beam adjusted is the second wave beam, and sends DCI information to terminal, is passed through
TCI field signals terminal in DCI, while determining GAP duration according to terminal capability and parameter current collection, when GAP, are a length of
The terminal receives PDCCH data to the absolute time for completing TCI parsing；It is also used to according to GAP duration, selection first is specific
Time slot and the second particular time-slot, first particular time-slot is located in the corresponding slot range of the GAP duration, described first
Particular time-slot sends PDSCH data to terminal by the first wave beam using the 2nd MCS, and the 2nd MCS is less than the first MCS；?
Second particular time-slot, using the 3rd MCS by second wave beam to terminal active retransmission PDSCH data, the third
MCS is greater than the 2nd MCS；
The terminal in first particular time-slot, is used for receiving downlink data, and after receiving downlink data
First wave beam receives PDSCH data, while in the second particular time-slot, receiving base station actively by the second wave beam using the 3rd MCS
The PDSCH data of re-transmission；After data decoding failure received using the first wave beam, the terminal utilizes the active weight received
The PDSCH data of biography carry out HARQ merging, obtain decoding result.
7. wave beam indicates processing system in a kind of 5G communication according to claim 6, which is characterized in that when GAP duration is small
When 1 time slot, it is assumed that time slot N includes continuous first subsymbol set and the second subsymbol set, and the GAP duration is equal to
The first subsymbol set, at this point, the first particular time-slot is the first subsymbol set, second particular time-slot is institute
State the second subsymbol set；
The base station is used in the first subsymbol set, sends PDSCH number to terminal by the first wave beam using the 2nd MCS
According to；In the second subsymbol set, the second wave beam is passed through to terminal active retransmission PDSCH data using the 3rd MCS；Two are sent simultaneously
A independent DCI indicates the time-frequency location of two scheduling to terminal.
8. wave beam indicates processing system in a kind of 5G communication according to claim 7, which is characterized in that the terminal is into one
Step is for after receiving downlink data, blind examination DCI, and the parsing and reception of TCI are completed at the end of the first subsymbol set
The adjustment of wave beam；Meanwhile in the first subsymbol set, data are received by the first wave beam using the 2nd MCS；In the second son symbol
Number set in, using the 3rd MCS by the second wave beam receive base station active retransmission PDSCH data.
9. wave beam indicates processing system in a kind of 5G communication according to claim 6, which is characterized in that assuming that each time slot
Corresponding includes an assemble of symbol, and as GAP when a length of integer assemble of symbol, first particular time-slot is GAP duration pair
The each assemble of symbol answered, second particular time-slot be the corresponding last symbol set of GAP duration after one when
Gap；
The base station is further used in the corresponding each time slot of GAP duration, passes through the first wave beam to terminal using the 2nd MCS
Independent PDSCH is sent respectively；A time slot after the corresponding last symbol set of GAP duration, using the 3rd MCS
By the second wave beam to terminal active retransmission PDSCH data.
10. wave beam indicates processing system in a kind of 5G communication according to claim 9, which is characterized in that the terminal into
One step is used for after receiving downlink data, blind examination DCI, and the solution of TCI is completed at the end of GAP duration corresponding assemble of symbol
Analysis and the adjustment for receiving wave beam；Meanwhile in the corresponding assemble of symbol of GAP duration, received using the 2nd MCS by the first wave beam
Data；A time slot after the corresponding last symbol set of GAP duration is connect using the 3rd MCS by the second wave beam
Receive the PDSCH data of base station active retransmission.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021148056A3 (en) * | 2020-01-22 | 2021-09-16 | 北京紫光展锐通信技术有限公司 | Method and apparatus for determining pdsch reception beam, storage medium, and terminal |
| CN115243334A (en) * | 2020-09-02 | 2022-10-25 | 北京小米移动软件有限公司 | Adjustment indication method and device, and communication link adjustment method and device |
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