CN109587771A - Time-frequency tracking, device and user equipment under discontinuous reception - Google Patents
Time-frequency tracking, device and user equipment under discontinuous reception Download PDFInfo
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- CN109587771A CN109587771A CN201710909433.2A CN201710909433A CN109587771A CN 109587771 A CN109587771 A CN 109587771A CN 201710909433 A CN201710909433 A CN 201710909433A CN 109587771 A CN109587771 A CN 109587771A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention provides time-frequency tracking, device and the user equipment under a kind of discontinuous reception.The described method includes: being previously active before the time-domain position of discontinuous reception opening time to receive the burst of synchronization signal block and time-frequency track reference signal burst；Time-frequency estimation is carried out according to the synchronization signal block burst received and time-frequency track reference signal burst.The present invention can happen suddenly according to different synchronization signal blocks and time-frequency track reference signal burst configures, and the time-frequency estimation before realizing the discontinuous reception opening time so as to reduce UE power consumption, guarantees the receptivity of discontinuous reception.
Description
Technical field
The present invention relates to time-frequency tracking, the dresses under wireless communication technology field more particularly to a kind of discontinuous reception
It sets and user equipment.
Background technique
In LTE (Long Term Evolution, long term evolution) system, base station can periodically send cell and refer to
Determine reference signal (Cell-specific Reference Signal, CRS), also referred to as public reference signal (Common
Reference Signal, CRS), UE (User Equipment, user equipment) by tracking this reference signal, in the time and
It is synchronous with base station holding in frequency.In other words, since the hardware differences of UE and base station, such as crystal oscillator are asynchronous, one is always had
Fixed time-frequency deviation, the CRS signal that UE is sent by the tracking base stations period are poor to calculate and correct frequency deviation at this time.Frequency deviation at this time
Difference can be referred to as carrier timing deviation (Carrier Timing Offset, CTO) and carrier frequency offset (Carrier again
Frequency Offset, CFO).Under discontinuous reception (Discontinuous Reception, DRX) state, UE can be with
Estimated by reviving to receive primary synchronization signal (Primary Synchronization Signal, PSS) and CRS and carry out time-frequency in advance
Meter and compensation, to guarantee discontinuous reception opening time (Discontinuous Reception ON duration, DRX ON)
Receptivity under state.
In 5G NR (New Radio, newly eat dishes without rice or wine) system be not present CRS signal, but in order to meet different application scene,
The time-frequency track demand of deployment scenario, NR devise synchronization signal block (Synchronization Signal Block, SSB) and
It is synchronous with essence that time-frequency track reference signal (Tracking Reference Signal, TRS) carries out thick synchronization respectively.Wherein TRS
It can be the period or aperiodic.And the period of synchronization signal block is configurable, and there are many period assignments.
DRX improves stand-by time mainly for the power consumption of reduction UE.It can be repeated in LTE system with the period of 5ms
There is PSS signal, and always exist CRS signal, in DRX transmission, only need to be previously active UE just can be carried out time-frequency estimation and mend
It repays, can guarantee DRX ON receptivity.And in 5G NR system design now, 3GPP do not provide also under DRX transmission state how
Carry out the design of time-frequency track reference signal.If being tracked before DRX ON without time-frequency, due to the variation of equipment and environment etc.,
It will lead to the receiving end UE and different degrees of time and frequency-offset occur, influence DRX ON receptivity, lead to not receive data.
Summary of the invention
Time-frequency tracking, device and user equipment under discontinuous reception provided by the invention, can be according to different
The burst of synchronization signal block and the configuration of time-frequency track reference signal burst, the time-frequency estimation before realizing the discontinuous reception opening time,
So as to reduce UE power consumption, guarantee the receptivity of discontinuous reception.
In a first aspect, the present invention provides the time-frequency tracking under a kind of discontinuous reception, comprising:
Before the time-domain position of discontinuous reception opening time, it is previously active to receive the burst of synchronization signal block and time-frequency
Track reference signal burst；
Time-frequency estimation is carried out according to the synchronization signal block burst received and time-frequency track reference signal burst.
Optionally, the synchronization signal block burst for time-frequency estimation and time-frequency track reference signal burst are quasi- colocation site.
Optionally, under the time-frequency track reference signal burst configuration that length is 2 time slots, it can be used for the same of time-frequency estimation
Walk first Time Slot Overlap of block burst and time-frequency track reference signal burst.
Optionally, it is happened suddenly according to synchronization signal block different with the configuration of time-frequency track reference signal burst, in synchronization signal
When block happens suddenly 0 time slot reserved between time-frequency track reference signal burst and discontinuous reception opening time or at least one
Gap.
Optionally, under the time-frequency track reference signal burst configuration that length is 1 time slot, it can be used for the same of time-frequency estimation
It is Chong Die with current time-frequency track reference signal burst to walk block burst.
Optionally, in the burst of synchronization signal block and between time-frequency track reference signal burst and discontinuous reception opening time
Reserved at least one time slot.
Optionally, time-frequency estimation packet is carried out according to the synchronization signal block burst received and time-frequency track reference signal burst
It includes: carrying out time-frequency estimation using the synchronization signal block burst of one group of overlapping and time-frequency track reference signal burst.
Optionally, when UE receives multiple wave beams simultaneously, the corresponding time-frequency track reference signal of each wave beam frequency domain not
With resource impact is carried out between subcarrier by the way of frequency division multiplex, each wave beam occupies the frequency spectrum resource of same band.
Optionally, for short discontinuous receiving cycle, at least one time-frequency is tracked before the discontinuous reception opening time
Reference signal burst, or the burst of synchronization signal block is not configured；For long discontinuous receiving cycle, when discontinuous reception is opened
Between before have the burst of one group of synchronization signal block and time-frequency track reference signal burst.
Second aspect, the present invention provide the time-frequency tracking device under a kind of discontinuous reception, comprising:
Activation and receiving unit, for being previously active to receive before the time-domain position of discontinuous reception opening time
The burst of synchronization signal block and time-frequency track reference signal burst；
Time-frequency estimation unit, for being carried out according to the synchronization signal block burst received and time-frequency track reference signal burst
Time-frequency estimation.
Optionally, the synchronization signal block burst for time-frequency estimation and time-frequency track reference signal burst are quasi- colocation site.
Optionally, under the time-frequency track reference signal burst configuration that length is 2 time slots, it can be used for the same of time-frequency estimation
Walk first Time Slot Overlap of block burst and time-frequency track reference signal burst.
Optionally, it is happened suddenly according to synchronization signal block different with the configuration of time-frequency track reference signal burst, in synchronization signal
When block happens suddenly 0 time slot reserved between time-frequency track reference signal burst and discontinuous reception opening time or at least one
Gap.
Optionally, under the time-frequency track reference signal burst configuration that length is 1 time slot, it can be used for the same of time-frequency estimation
It is Chong Die with current time-frequency track reference signal burst to walk block burst.
Optionally, in the burst of synchronization signal block and between time-frequency track reference signal burst and discontinuous reception opening time
Reserved at least one time slot.
Optionally, the time-frequency estimation unit, for using the synchronization signal block of one group of overlapping to happen suddenly and time-frequency tracking ginseng
It examines signal burst and carries out time-frequency estimation.
Optionally, when UE receives multiple wave beams simultaneously, the corresponding time-frequency track reference signal of each wave beam frequency domain not
With resource impact is carried out between subcarrier by the way of frequency division multiplex, each wave beam occupies the frequency spectrum resource of same band.
Optionally, for short discontinuous receiving cycle, at least one time-frequency is tracked before the discontinuous reception opening time
Reference signal burst, or the burst of synchronization signal block is not configured；For long discontinuous receiving cycle, when discontinuous reception is opened
Between before have the burst of one group of synchronization signal block and time-frequency track reference signal burst.
The third aspect, the present invention provide a kind of user equipment, the user equipment include under above-mentioned discontinuous reception when
Frequency tracking device.
Time-frequency tracking, device and user equipment under discontinuous reception provided in an embodiment of the present invention, discontinuous
Before the time-domain position for receiving the opening time, it is previously active prominent to receive the burst of synchronization signal block and time-frequency track reference signal
Hair carries out time-frequency estimation according to the synchronization signal block burst received and time-frequency track reference signal burst, so as to basis
The different bursts of synchronization signal block and the configuration of time-frequency track reference signal burst, the time-frequency before realizing the discontinuous reception opening time
Estimation, so as to reduce UE power consumption, guarantees the receptivity of discontinuous reception.
Detailed description of the invention
Fig. 1 is the flow chart of the time-frequency tracking under one embodiment of the invention discontinuous reception；
Fig. 2 is the DRX state diagram in the embodiment of the present invention 1；
Fig. 3 and Fig. 4 is SSB the and TRS running time-frequency resource distribution map in the embodiment of the present invention 1；
Fig. 5 is the DRX state diagram in the embodiment of the present invention 2；
Fig. 6 is SSB the and TRS running time-frequency resource distribution map in the embodiment of the present invention 2；
Fig. 7 is the DRX state diagram in the embodiment of the present invention 3；
Fig. 8 is SSB the and TRS running time-frequency resource distribution map in the embodiment of the present invention 3；
Fig. 9 is the DRX state diagram in the embodiment of the present invention 4；
Figure 10 is SSB the and TRS running time-frequency resource distribution map in the embodiment of the present invention 4；
Figure 11 is the DRX state diagram in the embodiment of the present invention 5；
Figure 12 is SSB the and TRS running time-frequency resource distribution map in the embodiment of the present invention 6；
Figure 13 is the structural schematic diagram of the time-frequency tracking device under one embodiment of the invention discontinuous reception.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides the time-frequency tracking under a kind of discontinuous reception, as shown in Figure 1, the method packet
It includes:
S11, before the time-domain position of discontinuous reception opening time, be previously active receive synchronization signal block burst
(SSB burst) and time-frequency track reference signal burst (TRS burst).
S12, time-frequency estimation is carried out according to the synchronization signal block burst received and time-frequency track reference signal burst.
Time-frequency tracking under discontinuous reception provided in an embodiment of the present invention, the discontinuous reception opening time when
Before the position of domain, it is previously active to receive the burst of synchronization signal block and time-frequency track reference signal burst, it is same according to what is received
It walks block burst and time-frequency track reference signal burst carries out time-frequency estimation, so as to prominent according to different synchronization signal blocks
Hair and the configuration of time-frequency track reference signal burst, the time-frequency estimation before realizing the discontinuous reception opening time, so as to reduce
UE power consumption guarantees the receptivity of discontinuous reception.
Wherein, the synchronization signal block burst for time-frequency estimation and time-frequency track reference signal burst are quasi- colocation site.
Optionally, under the time-frequency track reference signal burst configuration that length is 2 time slots, it can be used for the same of time-frequency estimation
Walk first Time Slot Overlap of block burst and time-frequency track reference signal burst.
Correspondingly, it is happened suddenly according to synchronization signal block different with the configuration of time-frequency track reference signal burst, in synchronization signal
When block happens suddenly 0 time slot reserved between time-frequency track reference signal burst and discontinuous reception opening time or at least one
Gap.
Optionally, under the time-frequency track reference signal burst configuration that length is 1 time slot, it can be used for the same of time-frequency estimation
It is Chong Die with current time-frequency track reference signal burst to walk block burst.
Correspondingly, in the burst of synchronization signal block and between time-frequency track reference signal burst and discontinuous reception opening time
Reserved at least one time slot.
Specifically, the burst of synchronization signal block and time-frequency track reference signal burst that one group of overlapping can be used carry out time-frequency
Estimation.
Further, when UE receives multiple wave beams simultaneously, the corresponding time-frequency track reference signal of each wave beam is in frequency domain
Resource impact is carried out between different sub-carrier by the way of frequency division multiplex, each wave beam occupies the frequency spectrum money of same band
Source.
Specifically, for short discontinuous receiving cycle, at least one time-frequency is tracked before the discontinuous reception opening time
Reference signal burst, or the burst of synchronization signal block is not configured；For long discontinuous receiving cycle, when discontinuous reception is opened
Between before have the burst of one group of synchronization signal block and time-frequency track reference signal burst.
The time-frequency tracking under discontinuous reception of the present invention is described in detail combined with specific embodiments below.
Embodiment 1
Under DRX state, TRS uses 2-slot burst, and 2 SSB have been overlapped on first slot of TRS, therein
One SSB and TRS is that (base station can send two SSB to quasi- colocation site simultaneously, but for UE here, can only use one
A SSB for intending colocation site with its TRS), as shown in Figure 2.Under the scene, a kind of implementation are as follows: TRS symbol on 2 slot
Position is all 6/12 or is all 7/13；1 slot duration, detailed configuration such as 2 slot of time domain, frequency domain are reserved before DRX ON
Shown in the resource allocation schematic diagram 3 of 1 PRB.
Another implementation are as follows: TRS character position is 7/12 on first slot, TRS sign bit on second slot
It is set to 3/8；0 slot duration, detailed configuration such as 2 slot of time domain, the resource allocation of 1 PRB of frequency domain are reserved before DRX ON
Shown in schematic diagram 4.
Embodiment 2
Under DRX state, TRS uses 2-slot burst, is overlapped respectively on first slot and second slot of TRS
There are 2 SSB respectively on 1 SSB burst, each SSB burst, wherein intend the SSB of colocation site in first slot with TRS
On, as shown in Figure 5.Specific implementation are as follows: TRS character position is all 6/12 or is all 7/13 on 2 slot；DRX ON it
It is preceding to reserve 1 slot duration, detailed configuration such as 2 slot of time domain, shown in the resource allocation schematic diagram 6 of 1 PRB of frequency domain.
Embodiment 3
Under DRX state, TRS uses 2-slot burst, and 1 SSB, and and TRS have been overlapped on first slot of TRS
It is quasi- colocation site, as shown in Figure 7.Specific implementation are as follows: on first slot TRS character position be 10/13, second
The upper TRS character position of slot is 3/6；0 slot duration, detailed configuration such as 2 slot of time domain, frequency domain 1 are reserved before DRX ON
Shown in the resource allocation schematic diagram 8 of a PRB.
Embodiment 4
Under DRX state, TRS uses 2-slot burst, is overlapped respectively on first slot and second slot of TRS
There is 1 SSB in SSB burst on 1 SSB burst, first slot, and intend colocation site with TRS, on second slot
At least one SSB, as shown in Figure 9.Specific implementation are as follows: on first slot TRS character position be 10/13, second
The upper TRS character position of slot is 7/13；1 slot duration, detailed configuration such as 2 slot of time domain, frequency domain 1 are reserved before DRX ON
Shown in the resource allocation schematic diagram 10 of a PRB.
Embodiment 5
Under DRX state, TRS uses 2-slot burst, and 1 SSB, and and TRS have been overlapped on first slot of TRS
It is quasi- colocation site, as shown in figure 11.Specific implementation are as follows: TRS character position is all 3/6 on 2 slot；Before DRX ON
Reserve 0 slot duration, detailed configuration such as 2 slot of time domain, shown in the resource allocation schematic diagram 12 of 1 PRB of frequency domain.
Under multi-beam reception condition, when UE is configured with less than or equal to 4 TRS, pass through FDM between each TRS
(Frequency Division Multiplexing, frequency division multiplex) carries out resource impact, and (3GPP has determined TRS frequency
Domain is separated by 4 subcarriers).
Above-described embodiment is the implementation of TRS under 2-slot length TRS burst.If TRS burst length is 1-
Slot is then multiplexed in above-mentioned 2-slot TRS burst implementation TRS on first slot and designs, is i.e. TRS time-frequency location；And
1 slot duration is all reserved before DRX ON.
The embodiment of the present invention also provides the time-frequency tracking device under a kind of discontinuous reception, as shown in figure 13, described device
Include:
Activation and receiving unit 11, for being previously active to connect before the time-domain position of discontinuous reception opening time
Receive the burst of synchronization signal block and time-frequency track reference signal burst；
Time-frequency estimation unit 12, for according to receive synchronization signal block burst and time-frequency track reference signal burst into
The estimation of row time-frequency.
Time-frequency tracking device under discontinuous reception provided in an embodiment of the present invention, the discontinuous reception opening time when
Before the position of domain, it is previously active to receive the burst of synchronization signal block and time-frequency track reference signal burst, it is same according to what is received
It walks block burst and time-frequency track reference signal burst carries out time-frequency estimation, so as to prominent according to different synchronization signal blocks
Hair and the configuration of time-frequency track reference signal burst, the time-frequency estimation before realizing the discontinuous reception opening time, so as to reduce
UE power consumption guarantees the receptivity of discontinuous reception.
Optionally, the synchronization signal block burst for time-frequency estimation and time-frequency track reference signal burst are quasi- colocation site.
Optionally, under the time-frequency track reference signal burst configuration that length is 2 time slots, it can be used for the same of time-frequency estimation
Walk first Time Slot Overlap of block burst and time-frequency track reference signal burst.
Optionally, it is happened suddenly according to synchronization signal block different with the configuration of time-frequency track reference signal burst, in synchronization signal
When block happens suddenly 0 time slot reserved between time-frequency track reference signal burst and discontinuous reception opening time or at least one
Gap.
Optionally, under the time-frequency track reference signal burst configuration that length is 1 time slot, it can be used for the same of time-frequency estimation
It is Chong Die with current time-frequency track reference signal burst to walk block burst.
Optionally, in the burst of synchronization signal block and between time-frequency track reference signal burst and discontinuous reception opening time
Reserved at least one time slot.
Optionally, the time-frequency estimation unit 12, for using the synchronization signal block of one group of overlapping to happen suddenly and time-frequency tracking
Reference signal burst carries out time-frequency estimation.
Optionally, when UE receives multiple wave beams simultaneously, the corresponding time-frequency track reference signal of each wave beam frequency domain not
With resource impact is carried out between subcarrier by the way of frequency division multiplex, each wave beam occupies the frequency spectrum resource of same band.
Optionally, for short discontinuous receiving cycle, at least one time-frequency is tracked before the discontinuous reception opening time
Reference signal burst, or the burst of synchronization signal block is not configured；For long discontinuous receiving cycle, when discontinuous reception is opened
Between before have the burst of one group of synchronization signal block and time-frequency track reference signal burst.
The device of the present embodiment can be used for executing the technical solution of above method embodiment, realization principle and technology
Effect is similar, and details are not described herein again.
The embodiment of the present invention also provides a kind of user equipment, and the user equipment includes the time-frequency under above-mentioned discontinuous reception
Tracking device.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (19)
1. the time-frequency tracking under a kind of discontinuous reception characterized by comprising
Before the time-domain position of discontinuous reception opening time, it is previously active to receive the burst of synchronization signal block and time-frequency tracking
Reference signal burst；
Time-frequency estimation is carried out according to the synchronization signal block burst received and time-frequency track reference signal burst.
2. the method according to claim 1, wherein for time-frequency estimation synchronization signal block burst and time-frequency with
The burst of track reference signal is quasi- colocation site.
3. method according to claim 1 or 2, which is characterized in that in the time-frequency track reference signal that length is 2 time slots
Under burst configuration, it can be used for first time slot weight of synchronization signal the block burst and time-frequency track reference signal burst of time-frequency estimation
It is folded.
4. according to the method described in claim 3, it is characterized in that, according to the burst of synchronization signal block and time-frequency track reference signal
The configuration of burst is different, in the burst of synchronization signal block and between time-frequency track reference signal burst and discontinuous reception opening time
Reserved 0 time slot or at least one time slot.
5. method according to claim 1 or 2, which is characterized in that in the time-frequency track reference signal that length is 1 time slot
Under burst configuration, the synchronization signal block burst that can be used for time-frequency estimation is Chong Die with current time-frequency track reference signal burst.
6. according to the method described in claim 5, it is characterized in that, prominent in the burst of synchronization signal block and time-frequency track reference signal
At least one time slot is reserved between hair and discontinuous reception opening time.
7. method according to claim 1 or 2, which is characterized in that according to the synchronization signal block burst received and time-frequency
It includes: to be believed using the synchronization signal block burst of one group of overlapping and time-frequency track reference that track reference signal burst, which carries out time-frequency estimation,
Number burst carry out time-frequency estimation.
8. method according to claim 1 or 2, which is characterized in that when UE receives multiple wave beams simultaneously, each wave beam pair
The time-frequency track reference signal answered carries out resource impact between frequency domain different sub-carrier by the way of frequency division multiplex, each
The frequency spectrum resource of wave beam occupancy same band.
9. method according to claim 1 or 2, which is characterized in that for short discontinuous receiving cycle, in discontinuous reception
At least one time-frequency track reference signal burst before opening time, or the burst of synchronization signal block is not configured；Company non-for length
The period is received in continued access, there is one group of synchronization signal block burst and time-frequency track reference signal burst before the discontinuous reception opening time.
10. the time-frequency tracking device under a kind of discontinuous reception characterized by comprising
Activation and receiving unit, for being previously active to receive synchronization before the time-domain position of discontinuous reception opening time
Block burst and time-frequency track reference signal burst；
Time-frequency estimation unit, for carrying out time-frequency according to the synchronization signal block burst received and time-frequency track reference signal burst
Estimation.
11. device according to claim 10, which is characterized in that the burst of synchronization signal block and time-frequency for time-frequency estimation
Track reference signal burst is quasi- colocation site.
12. device described in 0 or 11 according to claim 1, which is characterized in that in the time-frequency track reference that length is 2 time slots
Under signal burst configuration, when can be used for first of the burst of synchronization signal block and time-frequency track reference signal burst that time-frequency is estimated
Gap overlapping.
13. device according to claim 12, which is characterized in that believed according to the burst of synchronization signal block and time-frequency track reference
The configuration of number burst is different, the burst of synchronization signal block and time-frequency track reference signal burst and discontinuous reception opening time it
Between reserve 0 time slot or at least one time slot.
14. device described in 0 or 11 according to claim 1, which is characterized in that in the time-frequency track reference that length is 1 time slot
Under signal burst configuration, the synchronization signal block burst that can be used for time-frequency estimation is Chong Die with current time-frequency track reference signal burst.
15. device according to claim 14, which is characterized in that in the burst of synchronization signal block and time-frequency track reference signal
At least one time slot is reserved between burst and discontinuous reception opening time.
16. device described in 0 or 11 according to claim 1, which is characterized in that the time-frequency estimation unit, for using one group
The synchronization signal block burst of overlapping and time-frequency track reference signal burst carry out time-frequency estimation.
17. device described in 0 or 11 according to claim 1, which is characterized in that when UE receives multiple wave beams simultaneously, Mei Gebo
The corresponding time-frequency track reference signal of beam carries out resource impact between frequency domain different sub-carrier by the way of frequency division multiplex,
Each wave beam occupies the frequency spectrum resource of same band.
18. device described in 0 or 11 according to claim 1, which is characterized in that for short discontinuous receiving cycle, discontinuous
At least one time-frequency track reference signal burst before the reception opening time, or the burst of synchronization signal block is not configured；For length
Discontinuous receiving cycle has one group of synchronization signal block burst and time-frequency track reference signal prominent before the discontinuous reception opening time
Hair.
19. a kind of user equipment, which is characterized in that the user equipment includes as described in any one of claim 10 to 18
Time-frequency tracking device under discontinuous reception.
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| CN112449745A (en) * | 2020-10-16 | 2021-03-05 | 北京小米移动软件有限公司 | TRS/CSI-RS configuration method and device |
| CN112671522A (en) * | 2019-10-15 | 2021-04-16 | 联发科技股份有限公司 | Method for activating secondary cell, communication device and computer readable medium |
| CN113271190A (en) * | 2020-02-14 | 2021-08-17 | 华为技术有限公司 | Signal demodulation method, signal transmission method and related device |
| CN113438727A (en) * | 2021-06-28 | 2021-09-24 | 展讯通信（上海）有限公司 | SSB and TRS-based time offset estimation method, device, terminal and storage medium |
| WO2021248331A1 (en) * | 2020-06-08 | 2021-12-16 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | A method for carrier frequency and time offset estimation for mobile communications equipment |
| WO2022073402A1 (en) * | 2020-10-10 | 2022-04-14 | 华为技术有限公司 | Channel state measurement method and related device |
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| CN112671522A (en) * | 2019-10-15 | 2021-04-16 | 联发科技股份有限公司 | Method for activating secondary cell, communication device and computer readable medium |
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| CN113271190B (en) * | 2020-02-14 | 2023-03-28 | 华为技术有限公司 | Signal demodulation method, signal transmission method and related device |
| US11876662B2 (en) | 2020-02-14 | 2024-01-16 | Huawei Technologies Co., Ltd. | Signal demodulation method, signal transmission method, and related apparatus |
| WO2021248331A1 (en) * | 2020-06-08 | 2021-12-16 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | A method for carrier frequency and time offset estimation for mobile communications equipment |
| US11206167B1 (en) | 2020-06-08 | 2021-12-21 | Hong Kong Applied Science and Technology Research Institute Company Limted | Method for carrier frequency and time offset estimation for mobile communications equipment |
| WO2022073402A1 (en) * | 2020-10-10 | 2022-04-14 | 华为技术有限公司 | Channel state measurement method and related device |
| CN112449745A (en) * | 2020-10-16 | 2021-03-05 | 北京小米移动软件有限公司 | TRS/CSI-RS configuration method and device |
| CN112449745B (en) * | 2020-10-16 | 2023-12-12 | 北京小米移动软件有限公司 | TRS/CSI-RS configuration method and device |
| CN113438727A (en) * | 2021-06-28 | 2021-09-24 | 展讯通信（上海）有限公司 | SSB and TRS-based time offset estimation method, device, terminal and storage medium |
| CN113438727B (en) * | 2021-06-28 | 2022-06-21 | 展讯通信（上海）有限公司 | SSB and TRS-based time offset estimation method, device, terminal and storage medium |
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