CN110167134A - The method and apparatus that synchronization signal sends and receives - Google Patents
The method and apparatus that synchronization signal sends and receives Download PDFInfo
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- CN110167134A CN110167134A CN201910101317.7A CN201910101317A CN110167134A CN 110167134 A CN110167134 A CN 110167134A CN 201910101317 A CN201910101317 A CN 201910101317A CN 110167134 A CN110167134 A CN 110167134A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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Abstract
The invention discloses a kind of method and apparatus that synchronization signal sends and receives comprising: it is first listened in predefined time window and sends out LBT operation afterwards；If LBT is operated successfully, SSB is sent in the time window；The SSB includes synchronization signal SS or the SSB includes SS and Physical Broadcast Channel PBCH.Compared with prior art, the present invention implements the time of LBT by relaxing base station, i.e., LBT is implemented in permission base station in predefined time window, and sends SSB after LBT success, significantly improves the efficiency of data transmission and the access performance of communication system.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly, to a kind of method that synchronization signal sends and receives
And equipment.
Background technique
In order to meet huge traffic needs, the expection of 5G communication system can work from low-frequency range until 100G or so
High band resource on, including authorized spectrum band and unauthorized frequency range.Wherein, unauthorized frequency range mainly consider 5GHz frequency range and
60GHz frequency range.The 5G system that we would operate in unauthorized frequency range is known as NR-U system, may include independent in unauthorized frequency range
The scene of upper work, and the field to be worked with authorized spectrum band by the mode of dual link (DC, Dual connectivity)
Scape also includes the scene to be worked with authorized spectrum band by the mode that carrier wave polymerize (CA, Carrier aggregation),
As shown in Figure 1.In 5GHz frequency range, Wireless Fidelity (WiFi, Wireless Fidelity) system of 802.11 series has been deployed
The authorization photocarrier method of system, radar and LTE access LAA system, follow LBT (Listen before talk, after first listening
Hair) mechanism, i.e., had to before sending signal detect wireless channel, only detect wireless channel free time Shi Caike with
It occupies the wireless channel and sends signal.It is all omnidirectional usually in the LBT of this frequency range.In order to be coexisted with these existing systems,
NR-U system also must be based on similar LBT mechanism.In 60GHz frequency range, there is a small amount of 802.11ay system deployment.In order to realize
It coexists, it is also desirable to carry out corresponding LBT.Also, in 60GHz frequency range, in order to compensate for high path loss, wave beam is often used
Excipient obtains gain.Using having directive transmission in unauthorized frequency range, can more effectively reduce on different directions
Sending node between interference, while the peculiar problem of directionality has also been introduced.
Currently, based on unlicensed frequencies synchronization signal, in terms of control channel LBT mechanism, base station is that (user sets UE
It is standby) configuration SMTC (SS measurement timing configuration, synchronization signal measure timing configured window), make UE
Detection SS (synchronization signal), such as PSS (primary synchronization signal) and SSS (secondary synchronization signal) can be attempted in each SMTC,
Or attempt detection PBCH (Physical Broadcast Channel).Before base station sends SS or PBCH in SMTC, need first to complete LBT, i.e.,
It determines after thering is free idle channel can be used, just sends SS or PBCH.If LBT fail, SS or PBCH can not be sent, this cause SS or
The transmission density of PBCH reduces, and affects the efficiency of transmission and the performance of cell measurement.
In the prior art, base station is sent out in each DMTC using identical transmission power and identical transmission antenna
Send a SS.Therefore, UE can merge the SS detected in each DMTC, improve detection performance.But in 5G communication system
In system, in a SMTC, (SS measurement timing configuration, synchronization signal measure timing configured for base station
Window) in, it can attempt to send one group of SS, this group of SS may include multiple SS, and base station can use different transmission days
Line or transmission wave beam send these SS.How base station sends these SS, directly influences the sending probability of SS, to influence SS
The efficiency of transmission and the performance of cell measurement, and also affect UE and the merging of the SS detected in each SMTC window is assumed.
Further, since base station send SS uncertainty, cause UE receive sent together with SS downstream data channel PDSCH when without
Method determination receives PDSCH on which running time-frequency resource.
In the prior art, the SS that UE is detected in DMTC be only used for radio resource measurement (, Raido resource
Measurement, RRM), without determining temporal information, such as subframe index number according to SS.But it is right in 5G communication system
Can be with the scene of independence networking in unauthorized frequency range, UE must be in initial access process according to the SS and/or PBCH detected
Determine the temporal information of this cell.In authorized spectrum band, since the position of SS and time slot index have determining one-to-one correspondence to close
System, therefore UE can determine the temporal information of cell by detecting SS.But the position SS in unauthorized frequency range is alterable
, therefore method in the prior art can not support UE to obtain the temporal information of cell.
In view of this, it is necessary to provide a kind of methods that the synchronization signal for being able to solve above-mentioned technical problem sends and receives
And equipment.
Summary of the invention
It is an object of the invention to: it overcomes the deficiencies of the prior art and provide a kind of with ideal data transmission efficiency
Method for transmitting synchronizing signal and equipment.
To achieve the goals above, the present invention provides a kind of method for transmitting synchronizing signal comprising following steps:
It is first listened in predefined time window and sends out LBT operation afterwards；
If LBT is operated successfully, SSB is sent in the time window；
The SSB includes synchronization signal SS, or
The SSB includes SS and Physical Broadcast Channel PBCH.
Preferably,
The predefined time window is the time that synchronization signal measurement definition configuration window SMTC or base station send SSB
Window.
Preferably,
It include several alternate locations in a time window in time domain；
It is described to send SSB in the time window, comprising: time domain continuously sends one in a time window
SSB group, wherein corresponding in an alternate location to send a SSB.
Preferably,
It include several alternate location groups in a time window in time domain, each alternate location group includes several
Alternate location；
It is described to send SSB in the time window, comprising: time domain continuously sends one in an alternate location group
SSB group, wherein corresponding in an alternate location in the alternate location group to send a SSB.
Preferably, the time domain continuously sends a SSB group in an alternate location group, comprising: time domain is continuously
A SSB group is sent according to SSB number order in an alternate location group.
Preferably,
Several alternate location groups for including in one time window are not overlapped mutually, remove the last one alternate location group
Outer each alternate location group includes L alternate location, the last one alternate location group includes that the number of alternate location is not more than L, L
SSB number for including by a complete SSB group；
The time domain continuously sends a SSB group in an alternate location group, comprising: time domain is continuously standby at one
It selects and sends the SSB group comprising Ld SSB, Ld≤L in set of locations.
Preferably,
Several alternate location groups for including in one time window are not overlapped mutually, remove the last one alternate location group
Outer each alternate location group includes LeA alternate location, the last one alternate location group include that the number of alternate location is not more than Le,
LeSSB number for including by the expected SSB group sent in base station；
The time domain continuously sends a SSB group in an alternate location group, comprising: time domain is continuously standby at one
Selecting and sending one in set of locations includes LdThe SSB group of a SSB, Ld≤Le。
Preferably, base station in a SMTC window or can send SSB's by system information or high-level signaling instruction
One SSB alternate location group is determined according to Le or L in window.
Preferably,
Several alternate location groups for including in one time window partly overlap, and each alternate location group includes L
Alternate location, the SSB number that L includes by a complete SSB group；
The time domain continuously sends a SSB group in an alternate location group, comprising: time domain is continuously standby at one
It selects and sends the SSB group comprising Ld SSB, Ld≤L in set of locations.
Preferably,
Several alternate location groups for including in one time window partly overlap, and each alternate location group includes LeIt is a
Alternate location, LeSSB number for including by the expected SSB group sent in base station；
The time domain continuously sends a SSB group in an alternate location group, comprising: time domain is continuously standby at one
Selecting and sending one in set of locations includes LdThe SSB group of a SSB, Ld≤Le。
Preferably,
It include several alternate location groups in a time window in time domain, each alternate location group includes several
Alternate location；One SSB group includes several SSB groups, and a SSB group includes several SSB；
It is described to send SSB in the time window, comprising:
Time domain continuously sends a SSB group in an alternate location group, wherein the one of the alternate location group
It is corresponding in a alternate location to send a SSB；
Return to the step of executing LBT operation, continue to send next SSB group if LBT operate successfully, recycle up to
One SSB group is sent, and stops sending SSB if LBT operation failure.
Preferably,
It include several alternate location groups in time window in time domain, several alternate location groups are mutually not
Overlapping, each alternate location group includes L alternate location in addition to the last one alternate location group, and L alternate location is successively distinguished
Corresponding SSB number 0,1 ..., L-1, the last one alternate location group includes the number of alternate location no more than L, the last one
Alternate location in alternate location group successively respectively correspond SSB number 0,1 ..., L includes by a complete SSB group
SSB number；
It is described to send SSB in the time window, comprising: since any one alternate location in the SMTC, when
Domain continuously sends a SSB group, wherein corresponding in an alternate location to send one with corresponding with the alternate location
The SSB of SSB number.
Preferably,
It include several alternate location groups in time window in time domain, several alternate location groups are mutually not
Overlapping, each alternate location group includes L in addition to the last one alternate location groupeA alternate location, LeThe logic of a alternate location is compiled
Number successively respectively correspond SSB logical number SSB0_, SSB1_ ..., SSBLe-1_, the last one alternate location group includes standby
The number that bit selecting is set is not more than Le, LeSSB number for including by the expected SSB group sent in base station；
It is described to send SSB in the time window, comprising: since any one alternate location in the time window,
Time domain continuously sends a SSB group, wherein corresponding transmission one has in an alternate location and the alternate location logic is compiled
The SSB of number corresponding SSB logical number.
Preferably, base station can indicate that predefined SSB pattern described in UE is root by system information or high-level signaling
It is determined according to Le or L.
Preferably,
At least one following information of demodulated reference signal DMRS carrying of the PBCH or PBCH: for determining
State the information of the number of SSB, for the information of system frame number where determining the SSB, for determining the son where the SSB
The information of frame number, the information for determining the time-gap number where the SSB.
Preferably,
If the LBT is operated successfully, SSB is sent in the time window, comprising: if LBT is operated successfully, in the time
SSB and corresponding channel state information reference signals CSI-RS is sent in window, or SSB and corresponding system are sent in the SMTC
Unite information RMSI；
The CSI-RS can be used at least one of the following: radio link quality measures RRM, radio link quality monitoring
RLM and wave beam management；
At least one of following information is carried in the RMSI: for determining the information of the number of the SSB, for determining
State the information of system frame number where SSB, the information for determining the subframe number where the SSB, for determining the SSB
The information of the time-gap number at place.
Preferably,
It is successively first listened in several predefined time windows respectively and sends out LBT operation afterwards；
If LBT is operated successfully, several SSB are sent respectively in several described time windows, wherein having identical number
SSB sent with identical beam direction.
Preferably,
The predefined time window is the time that synchronization signal measurement definition configuration window SMTC or base station send SSB
Window.
Preferably,
It is successively first listened in several time windows respectively and sends out LBT operation afterwards；
If LBT is operated successfully, several SSB are sent respectively in several described time windows, and wherein the difference of SSB number is
LeThe SSB of integral multiple sent with identical beam direction.
To achieve the goals above, the present invention provides a kind of synchronous signal receiver methods comprising following steps:
SSB is received in predefined time window, the SSB includes synchronization signal SS or the SSB includes SS and physics
Broadcast channel PBCH；
Channel measurement and/or cell detection are carried out based on the SSB received.
Preferably,
The predefined time window is the time that synchronization signal measurement definition configuration window SMTC or base station send SSB
Window.
Preferably,
SSB is received in the time window, comprising: successively receives several SSB in several time windows respectively；
In the time window after reception SSB, comprising: determine and be located in time windows and with identical number
SSB meets quasi- matching QCL relationship.
Preferably, the determination is located in time windows and the SSB with identical number meets quasi- matching QCL relationship,
Include: that two SSB SSB number having the same is determined according to the time-domain position for two SSB being located in different SMTC, determines
Two SSB meet quasi- matching QCL relationship.
Preferably,
In the time window after reception SSB, comprising: determine and be located at the SSB number in time windows and having
Difference is that the SSB of the integral multiple of the expected SSB several Le sent in base station meets quasi- matching QCL relationship.
Preferably, the method also includes:
Pass through the public Physical Downlink Control Channel of cell, the public Physical Downlink Control Channel of user group, scheduling physical down
Any mode in the physical downlink control channel PDCCH of shared channel PDSCH, obtains the SSB resource in the time window
Indicate information；
The SSB resource location is avoided according to the SSB resource indication information, to receive in the time window in addition to SSB
Any downlink signal or down physical channel.
Preferably, described that the SSB resource is avoided according to the SSB resource indication information, it is removed with receiving in the time window
Any downlink signal or down physical channel except SSB, comprising: the time window is avoided according to the SSB resource indication information
Several continuously distributed SSB resources of interior time domain, to receive any downlink signal or downlink in the time window in addition to SSB
Physical channel.
Preferably, described that the SSB resource is avoided according to the SSB resource indication information, it is removed with receiving in the time window
Any downlink signal or down physical channel except SSB, comprising: the time window is avoided according to the SSB resource indication information
Several any SSB resources in interior time domain, to receive any downlink signal or downlink physical letter in the SMTC in addition to SSB
Road.
Preferably, while executing the reception SSB in time window, the method also includes:
SSB of the SSB group indicated according to predefined SSB pattern and base station in the predefined SSB pattern
The position of group determines the time-gap number where SSB or the subframe number at place；Or
SSB of the SSB indicated according to predefined SSB pattern and base station in the predefined SSB pattern
Position determines the time-gap number where SSB or the subframe number at place.
Preferably, the starting point of the predefined SSB pattern is preceding half of SF or later half of a particular system frame SF
The starting point of a SF.
Preferably, the quantity L for the SSB that the predefined SSB pattern is expected to send according to base stationeAnd/or base station is expected
The logical number of the SSB of transmission determines.
Preferably, the quantity L for the SSB that the predefined SSB pattern includes according to the SSB group of one group of completion and/or institute
The number of the SSB in one group of SSB is stated to determine.
Preferably, the information of the expected SSB sent in the base station notifies UE by system information or high-level signaling.
Preferably, base station can indicate that predefined SSB pattern described in UE is root by system information or high-level signaling
It is determined according to Le or L.
To achieve the goals above, the present invention provides a kind of determining random access channel opportunitys (PRACH occasion)
Method comprising following steps:
According to the expected SSB and PRACH configuration information sent in base station, the corresponding PRACH of each SSB is determined
occasion；
Resource based on PRACH occasion and PRACH time slot where the PRACH occasion and/or described
All SSB alternate locations in the previous time slot of PRACH time slot, determine whether PRACH occasion is effective.
Preferably, the expected SSB information sent in the base station can notify UE by system information and/or high-level signaling.
To achieve the goals above, the present invention provides a kind of base station equipments comprising:
LBT operation module is first listened in predefined time window and sends out LBT operation afterwards；
It sends SSB module and sends SSB in the time window if LBT is operated successfully, the SSB includes synchronization signal
The SS or SSB includes SS and Physical Broadcast Channel PBCH.
To achieve the goals above, the present invention provides a kind of user equipmenies comprising:
Receiving module, for receiving SSB in predefined time window, the SSB includes synchronization signal SS or described
SSB includes SS and Physical Broadcast Channel PBCH；
Measurement module, for carrying out channel measurement and/or cell detection based on the SSB received.
Compared with prior art, technical effect of the invention includes but is not limited to: by relax base station implement LBT when
Between, i.e., LBT is implemented in permission base station in the time window window for user device configuration, and sends SSB after LBT success, significantly mentions
The efficiency that high data are sent, improves the performance of cell measurement.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
Those skilled in the art are also possible to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is schematic diagram of the background of invention 5G system in unauthorized band operation；
Fig. 2 is the schematic diagram that the first SSB of the present invention sends arrangement mode；
Fig. 3 is the schematic diagram that second of SSB of the present invention sends arrangement mode；
Fig. 4 is the schematic diagram that the third SSB of the present invention sends arrangement mode；
Fig. 5 is the schematic diagram that the 4th kind of SSB of the present invention sends arrangement mode；
Fig. 6 is the flow chart of method for transmitting synchronizing signal of the present invention；
Fig. 7 is the flow chart of synchronous signal receiver method of the present invention；
Fig. 8 (a) is the schematic diagram that the 5th kind of SSB of the present invention sends arrangement mode；
Fig. 8 (b) is the schematic diagram that the 6th kind of SSB of the present invention sends arrangement mode；
Fig. 9 (a) is the schematic diagram that the 7th kind of SSB of the present invention sends arrangement mode；
Fig. 9 (b) is the schematic diagram that the 8th kind of SSB of the present invention sends arrangement mode；
Figure 10 (a) is the schematic diagram that the 9th kind of SSB of the present invention sends arrangement mode；
Figure 10 (b) is the schematic diagram that the tenth kind of SSB of the present invention sends arrangement mode；
Figure 11 (a) is the schematic diagram that a kind of SSB of the present invention the tenth sends arrangement mode；
Figure 11 (b) is the schematic diagram that the 12nd kind of SSB of the present invention sends arrangement mode；
Figure 12 is the schematic diagram that the 13rd kind of SSB of the present invention sends arrangement mode；
Figure 13 is the module frame chart for the base station equipment that the present invention is sent for synchronization signal；
Figure 14 is module frame chart of the present invention for the user equipment of synchronous signal receiver.
Specific embodiment
The embodiment of present disclosure is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining present disclosure, and cannot be construed to the limitation to present disclosure.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in the specification of present disclosure
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange
Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in present disclosure fields.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here
To explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " user equipment " both include wireless communication
The equipment of number receiver, only has the equipment of the wireless signal receiver of non-emissive ability, and including receiving and emitting hardware
Equipment, have on bidirectional communication link, can carry out two-way communication reception and emit hardware equipment.This equipment
It may include: honeycomb or other communication equipments, shown with single line display or multi-line display or without multi-line
The honeycomb of device or other communication equipments；PCS (PerSonal CommunicationS Service, PCS Personal Communications System), can
With combine voice, data processing, fax and/or communication ability；PDA (PerSonal Digital ASSiStant, it is personal
Digital assistants), it may include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day
It goes through and/or GPS (Global PoSitioning SyStem, global positioning system) receiver；Conventional laptop and/or palm
Type computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its
His equipment." terminal " used herein above, " terminal device " can be it is portable, can transport, be mounted on the vehicles (aviation,
Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth
And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on
Network termination, music/video playback terminal, such as can be PDA, MID (Mobile Internet Device, mobile Internet
Equipment) and/or mobile phone with music/video playing function, it is also possible to the equipment such as smart television, set-top box.
The LBT of base station transmission in the prior art, UE (user equipment) reception synchronization signal, control channel is briefly introduced first
Mechanism.
For example, user equipment is in and establishes radio-resource-configuration connection status (RRC in a kind of scene
Connection) or it is in RRC idle state (RRC idle), when being serviced by base station 1, base station 1 can configure this user
Equipment measures one or more cell, such as RRM measurement.In general, base station 1 is user configuration SMTC (SS
Measurement timing configuration, synchronization signal measure timing configured), user equipment can be at each
Detection SS (synchronization signal), such as PSS (primary synchronization signal) and SSS (secondary synchronization signal) are attempted in SMTC, or and attempt to examine
It surveys PBCH (Physical Broadcast Channel).Connected state user equipment can determine SMTC according to the RRC signaling of base station, and idle state is used
Family equipment can determine SMTC according to the SMTC information obtained, or determine the information such as the period of SSB according to system message.Even
Connecing state user equipment can also attempt to detect one or more SS in a SMTC according to the configuration of base station.User sets
It is standby to be measured according to the SS detected in a SMTC window or user equipment can will detect in multiple SMTC windows
To the measurement result of the SS for meeting predefined relationship merge.If according only to the SS detected in a SMTC window into
Row measurement, and base station does not need to distinguish wave beam for the measurement of user device configuration, it is only necessary to and it is minimum that user equipment, which is based on cell,
The measurement of granularity with report, then user equipment does not need to distinguish the directionality of the SS of measurement.If necessary by the measurement knot of multiple SS
Fruit merges or base station has been user device configuration using wave beam as the measurement of granularity, can specifically show as measurement and
SS need to be reported to number when report measurement results, then need to design the number for the SS that methodology receives user equipment discrimination,
Also known as SSB number.One SSB may include a SS and PBCH, or only include a SS.Base station can send one group
SSB may include most L SSB.Each SSB is respectively 0~L-1 according to chronological order number l, and l is referred to as that SSB is compiled
Number.It has been generally acknowledged that SSB, which numbers identical SS, has the similar characteristic of channel, it is believed that be QCL (Quasi-collocation, standard
With), it can merge.Usual QCL refers to QCL characteristic spatially, can there are many type, for example, it may be
Doppler characterization and channel delay characteristic meet QCL, alternatively, being only that doppler characterization meets QCL, or are only that space receives ginseng
Number meets the combination of QCL or other situations or a variety of situations.Present disclosure does not limit the type of QCL characteristic.
In another example user equipment is in initial access state in a kind of scene, user equipment can be by blind Detecting
Come attempt receive synchronization signal SS, or and attempt detection PBCH.Compared with former scene, user equipment also needs to obtain inspection
The temporal information of cell where the SSB measured, to carry out the reception of subsequent system information or the resource of random access procedure
It prepares.The temporal information includes the boundary of symbol, time slot/subframe boundary and system-frame (SF, system frame)
Number.
In general, base station can be in fixed position periodicity sending SSB in the carrier wave of authorized spectrum band.For example, at each
Fixation position in SMTC sends one group of SSB, therefore user equipment can also be found in SMTC by the auxiliary information of base station
This fixes position, and assumes that the long period does not convert, or until receiving new auxiliary information.One group of SSB, may include
One SSB, or include multiple SSB.For example, base station can send one group of SSB in the system based on multi-beam transmission of support,
Include LdA SSB, wherein Ld≤ L, each SSB can correspond to different beam directions or multiple SSB correspond to phase Tongfang
To LdA SSB can correspond to different directions.
As shown in Fig. 2, when group intercarrier is divided into 15KHz, one group of SSB may include most L=4 or 8 SSB.
This group of SSB is always positioned in the first half an of system-frame (SF, length 10ms) or the 5ms window of latter half.Such as
Shown in Fig. 3, when group intercarrier is divided into 30KHz, one group of SSB may include most L=4 or 8 SSB, and there are two types of
Possible pattern, base station can select a kind of pattern according to system deployment situation.Group intercarrier is divided into 120KHz or 240KHz
When, one group of SSB may include most L=64 SSB.Each SSB is numbered according to chronological order, respectively 0~L-1,
Later referred to as SSB number.The SSB number that practical one sent group SSB in base station includes can be less than L, but SSB number is suitable
Sequence is uniquely determined according to time location.Base station meeting this group of SSB of periodicity sending, such as period can be 5,10,20,40,80
~180ms.Fig. 4 gives the example in 40ms period.
Base station when for user device configuration SMTC, the period of SMTC be not limited to it is identical as the period of SSB, for example,
The SMTC period can be longer, as long as can satisfy measurement performance demand.Also, configure SMTC when, need to guarantee SMTC window at least with
The window segment overlapping for sending SSB, so that user equipment may detect that SSB, a kind of implementation in SMTC window, it is believed that
The two is the same.Another kind realize, SMTC window with transmission SSB window be only it is partly overlapping, not limiting needs user equipment to survey
The starting point of all SSB of amount falls in the start position of SMTC.For example, it is l that base station configuration user equipment, which need to measure the number of cell A,
=3 and 4 SSB, the two SSB can be first slot (time slot) in SMTC window, and base station also can be configured that
The two SSB can be other positions slot in SMTC window, as long as guaranteeing that the two SSB can completely be included in SMTC
In window.In each SMTC window, the position of the two SSB is remained unchanged.SSB unauthorized frequency range carrier wave, if
The transmission of signal is needed based on LBT, or even if authorized spectrum band carrier wave, the transmission base of signal is needed to reduce interference
In LBT, in each SMTC, if there are SSB be uncertain.In this case, user equipment can only be assumed each
In a SMTC, there are one group from the SSB of some cell or SSB is not present.As shown in fig. 5, it is assumed that cell A was sent
One group of SSB includes L=4 SSB, and is since first slot in SMTC window, and the period of SMTC period and SSB are equal
For 40ms.In first SMTC, the base station cell A successfully completes LBT, then the base station cell A is at first slot and second
One group of SSB is had sent in slot.In second SMTC after 40ms, the base station cell A is before the SSB of first slot starts
Fail to complete LBT, then can not send.In third SMTC after 40ms, the base station cell A starts in the SSB of first slot
Fail to complete LBT again before, then can not send again.Correspondingly, user equipment also can only detect one in first SMTC
Group SSB, and SSB can not be detected in second and third SMTC.It is not difficult to find out that due to the influence of LBT, the transmission of SSB
Density reduces, and necessarily will affect the performance of cell measurement.Equally, when user is initially accessed, if base station sends SSB and needs
LBT is first passed through, user equipment may can't detect SSB the long period, because base station, which fails, completes LBT without sending
SSB is too big so as to cause the cell detection process time delay of user equipment.If user equipment needs to merge multiple SSB,
For user equipment after detecting a SSB, the possible long period, which can't detect another, can be used for combined SSB, also will affect
Cell detection performance.
It in order to solve this problem, can be using compared to the transmission faster LBT of data.For example, the transmission of general data
The LBT (Cat-4LBT) of the progress first kind is needed before, it usually needs several~thousands of idle carrier waves detect time slot (CCA
Slot data) can be just sent, and SSB can use faster LBT, such as only single 25us LBT, the LAA system with LTE
Discovery signal (DRS) LBT it is identical, or using highest priority the first kind LBT, i.e. LBT priority=1
The first kind LBT, reduce the number of required free timeslot.
Even if having used faster LBT, the probability that base station can not send SSB is also that can not ignore to disregard.Can with compared with
Big density sends SSB, such as 5ms is the period, and uses quick LBT.But due in order to send SSB use it is fast
The LBT of speed cannot send data, and the too small period causes or base station always carries out quick LBT and attempts to send SSB, but
Lose the chance for sending data.For example, one group of SSB occupies 4 ms in Fig. 2 when L=8, the every 5ms in base station attempts primary hair
It send SSB, only last 1 ms that can leave base station for attempt to be gone to seize channel transmission data with common LBT.Such efficiency is
It is very low.
In order to solve the above technical problems, present disclosure proposes a kind of synchronization signal and control channel transmits and receives
LBT scheme.
Referring to Fig. 6, method for transmitting synchronizing signal disclosed in present disclosure the following steps are included:
Step 101, it measures first to be listened in timing configured window SMTC or the window for sending SSB in synchronization signal and sends out LBT behaviour afterwards
Make；
Step 102, if LBT is operated successfully, SSB is sent in the SMTC or in the window of transmission SSB, the SSB includes
The synchronization signal SS or SSB includes SS and Physical Broadcast Channel PBCH.
Referring to Fig. 7, synchronous signal receiver method disclosed in present disclosure the following steps are included:
Step 201, it is measured in timing configured window SMTC or the window for sending SSB in synchronization signal and receives SSB, the SSB packet
It includes synchronization signal SS or the SSB includes SS and Physical Broadcast Channel PBCH；
For not obtaining the UE of SMTC information, such as just, the UE of RRC connection is not yet established in booting, can only blind Detecting SSB,
And/or based on the system information received, SSB is received in the window for sending SSB.
Step 202, channel measurement and/or cell detection are carried out based on the SSB received.The channel measurement, can be down to
Less comprising following at least one measurement: RRM measurement, RLM measurement, wave beam measurement.The cell detection can include at least following
At least one detection: cell ID detection, for the cell virtual ID detection that SS sequence generates, cell time information detection.
Base station can configure the starting point that the starting point of SMTC is a system-frame SF or of rear half of SF in a SF
Point, the i.e. starting point of SMTC can be the integral multiple of 5ms.Alternatively, the starting point that base station can configure SMTC is any in a SF
The starting point of one 1ms.The window for sending SSB, after being defined as in starting point that starting point is system-frame SF or a SF
The starting point of half of SF.For convenience of description, following example is unless otherwise specified, it is assumed that SMTC window is equal to the window for sending SSB, but this hair
The starting point that the starting point of the case where bright method is suitable for the overlapping of both window segments and SMTC window is any one 1ms
Situation.
Relative to the previously described prior art, the scheme of present disclosure is capable of increasing the probability that base station sends SSB, can not
Limiting position of the SSB in each SMTC, i.e. relative position of the SSB in SMTC can float on time dimension, thus
Relax the time requirement for carrying out LBT.According to predefined rule, the alternative position that SSB can be transmitted in a SMTC window is determined
It sets.Base station can carry out LBT before each alternate location, and (or from time point progress LBT earlier, present disclosure is not limited
It is fixed), if LBT success, can start to send one group of SSB.
In the prior art, user equipment is after detecting a SSB, the DMRS of the PBCH by detecting this SSB
(demodulated reference signal) sequence can determine the number of SSB.Due to SSB number position be it is fixed, user equipment can
To number the boundary for determining time slot/subframe, and time slot/subframe number in half of SF frame according to SSB.User equipment may be used also
According to the PBCH of SSB, to determine this SSB in the number of preceding half of SF or rear half of SF and SF.
If SSB can float on time dimension, current mechanism can not support user equipment by the SSB that detects come
Determine SSB number and temporal information.Therefore present disclosure design methodology makes user equipment pass through SSB or other letters
Number obtain the temporal information.The specific implementation process of present disclosure scheme is illustrated in detail below.
Step 301, user equipment receives SS.
In step 301, when user equipment receives synchronization signal, it can be assumed that base station is determined according to predefined rule
The alternate location of SSB can be transmitted in one SMTC window, base station can carry out LBT (or from earlier before each alternate location
Time point carry out LBT, present disclosure is without limitation), if LBT success, can start send one group of SSB.
The predefined rule can be following at least one:
(1) entire SMTC is divided into several intervals, i.e. several alternate location groups not coincided, each alternative position
It sets group and includes L alternate location, wherein L is the number of the SSB in a complete SSB group.For a SMTC, base station LBT
After success, it can choose one of alternate location group and send a SSB group.
Using chronomere needed for one group of SSB as interval, determines in SMTC window or send and is in the window of SSB all standby
Bit selecting is set.
It include complete one group of L SSB for each alternate location group, L SSB respectively corresponds 0~L- of SSB number
1.Position of this group of SSB in alternate location group is fixed.The number for the SSB that practical one sent group SSB in base station includes
Ld≤L。
It in a SMTC window or sends in the window of SSB, base station can attempt to send one in multiple alternate location groups
Group SSB.Before each alternate location group, base station can carry out LBT.If the LBT success before some alternate location group,
Base station can send one group of SSB in this alternate location group, not send SSB in other alternate location groups.Another kind is realized
Mode divides one group of SSB for LLBTZu Zi group, every Ge Zi group need LBT respectively, the SSB in a sub- group that can continuously send out
It send.Base station can continuously transmit a Ge Zi group SSB since an alternate location group.And it is sent in this Ge Zi group
Bi Hou reattempts LBT, continues to send the SSB of next Ge Zi group in same group if LBT success, circulation is until a SSB
Group is sent.Before the first sub- group in one group of SSB used LBT can with the sub- group of other in this group it
Preceding LBT is different, for example, the LBT before the first sub- group is more conservative LBT, such as CCA time slot is longer or CCA
Orientation angle it is bigger, LBT later can faster, such as only can include this using the direction of 25us LBT or CCA
The direction of sub- group.If all LBT failures, in a SMTC window or send in the window of SSB, base station does not send SSB.
As shown in Fig. 8 (a), with 30KHz subcarrier spacing, for L=4.The time slot that one group of SSB is occupied is 2 time slots, when
Between total length be 1ms.Then in the SMTC window that duration (duration) is 5ms, 5 alternate location groups, i.e. time slot are shared
0,1,2,3,4.Base station has successfully completed LBT before any one alternate location group, then can send out in corresponding alternate location group
It send.In Fig. 8 (a), in second SMTC window, base station is in first time slot, it is assumed that be time slot 0, before do not complete LBT, but
Second time slot, time slot 1 complete LBT before starting, then base station can send one group of SSB in time slot 1, it is assumed here that base station is pre-
SSB several L that phase sendse=L.Other alternate locations of base station in this SMTC are without retransmiting SSB；In third SMTC
In window, base station just completes LBT until time slot 4 starts, then base station can send one group of SSB in time slot 4.
In this case, user equipment assume that, at most only can be in an alternate location group in each SMTC window
Upper there are one group of SSB, or one group of SSB is not present.
In the method, determine the alternate location group of one group of SSB, can with according to whether can map one group it is complete
SSB is as judgment basis.For example, determining alternate location group in a 5ms window, the time span of each alternate location group is
2ms can only then have 2 alternate location groups, and the 3rd alternate location group only has 1ms, be not enough to map complete one group of SSB, therefore
Not as alternate location.Therefore for the alternate location group that each has sufficient length to send one group of SSB, base station is practical to be sent
The number L for the SSB that one group of SSB includesdIt is constant, also, the number L of practical one sent group SSB in the base station SSB that includesdEqual to base
Stand the number L of SSB that the expected one group of SSB sent includese.Base station can notify UE to close by system information or high-level signaling
In LeInformation, for example, indicating which SSB transmission in L SSB by PBCH, or L is indicated by PBCHeAnd assume base station
The L of transmissioneThe number of a SSB is 0~Le- 1, or pass through RMSI (remaining system inforamtion, system letter
Breath, also referred to as SIB1) indicate which SSB is sent in L SSB.Alternatively, the alternate location group of one group of SSB is determined, only comprising reflecting
Penetrate the position of part SSB in one group of SSB.For example, in a 5ms window determine alternate location group, each alternate location group when
Between length be 2ms, then have 2 complete alternate location groups, the 3rd alternate location group only has 1ms, can map one group of SSB's
The SSB of first half.The number L for the SSB for then including for preceding 2 alternate location groups, practical one sent group SSB in base stationdIt can
It can be with the number L of the 3rd practical SSB sent of alternate location groupdDifference, and Ld≤Le。
User equipment assume that, within long period of time, in each SMTC window, and if having sent one group of SSB,
The number for the SSB for including in one group of SSB in each SMTC window is identical.For example, if L=4, Le=2, the expected hair in base station
The SSB sent is SSB2 and SSB3, then in each SMTC window, if base station successfully completes LBT, one group of SSB of transmission is
SSB2 and SSB3.It, may be each if the last one alternate location group length in a SMTC window is not enough to comprising L SSB
The number for the SSB for including in one group of SSB in a SMTC window is slightly different.
Work as LeWhen≤L, if the index of the expected SSB sent in base station is continuous, such as L=4, LeThe index of=2, SSB
For SSB2 and SSB3, then, base station attempts to send the two SSB in the alternate location of SSB2 and SSB3.
If the index of the expected SSB sent in base station is discontinuous, such as L=4, LeThe index of=2, SSB are SSB1
And SSB3, then, base station attempts to send the two SSB in the alternate location of SSB1 and SSB3.Another implementation, base station
Attempt successively to send SSB1 and SSB3 in the alternate location of SSB0 and SSB1, i.e., base station continuous SSB alternate location successively
According to the Sequential Mapping SSB of SSB number from small to large.
(2) identical as (1), entire SMTC is divided into several intervals, i.e. several alternate location groups not coincided,
Each alternate location group includes L alternate location, and wherein L is the number of the SSB in a complete SSB group.For one
After SMTC, base station LBT success, it can choose one of alternate location group and send a SSB group.Needed for one group of SSB
Chronomere is interval, determines in SMTC window or send all alternate locations in the window of SSB.For each alternative position
Group is set, includes complete one group of L SSB, L SSB respectively corresponds 0~L-1 of SSB number.This group of SSB is in alternate location group
Position be fixed.The number L for the SSB that practical one sent group SSB in base station includesd≤L.Determine the alternative position of one group of SSB
The method for setting group is also identical as (1), is not repeated.
Unlike (1), work as LeWhen < L, in order to increase the probability for sending SSB, it can specify that when the expected transmission in base station
SSB several L that one group of SSB includeseWhen < L, SSB number i, j satisfaction When, or
The difference of i and j is LeIntegral multiple when, base station can number be i or any one SSB alternate location of j attempt send have
With the SSB of alternate location reference numeral, and SSBiAnd SSBjBeam direction having the same.A kind of implementation, base station can be with
Prepare L SSB, respectively SSB in advance0~SSBL-1, base station is according to LBT's as a result, sending tool in the successful alternate location of LBT
There is the SSB with alternate location reference numeral, the several L of SSB actually sentd≤Le.Since LBT is successful in each transmission window
Time may be different, and therefore, the number for the SSB for including in each one group of SSB sent in window may be different.
With L=4, LeFor=2, the expected SSB for sending 2 different beams directions in base station.It base station can be in the standby of SSB0
Bit selecting, which sets transmission SSB0 or base station, can send SSB2 in the alternate location of SSB2, and send SSB0 and SSB2 is identical
Wave beam, in a transmission window, base station only needs to send one in SSB0 or SSB2；Also, base station can be SSB1's
Alternate location, which sends SSB1 or base station, can send SSB3 in the alternate location of SSB3, and send SSB1 and SSB3 is phase
Same wave beam, in a transmission window, base station only needs to send one in SSB1 or SSB3.Base station can prepare 4 in advance
SSB, respectively SSB0~SSB3.Assuming that base station fails to complete LBT before SSB0 and SSB1 start in a SMTC window,
But LBT is completed before SSB2 starts, then base station can send SSB2 and SSB3.In another example in next STMC window, base
Stand and fail to complete LBT before SSB0 starts, but complete LBT before SSB1 starts, then base station can send SSB1 and
SSB2.Wherein, the SSB2 sent in the SSB2 and second SMTC window sent in first SMTC window is identical wave beam, first
The SSB3 sent in the SSB1 and second SMTC window sent in a SMTC window is identical wave beam.It is not difficult to find out that different
In SMTC window, the SSB number actually sent may be different.
Base station can notify UE about L by system information or high-level signalingeInformation, for example, pass through RMSI middle finger
Show that the ssb-PositionsInBurst parameter which SSB is sent in L SSB determines.
(3) entire SMTC is divided into several intervals, i.e. several alternate location groups not coincided, each alternative position
It sets group and includes LeA alternate location, wherein LeFor the number of the expected one group of SSB sent in the base station SSB for including.For one
After SMTC, base station LBT success, it can choose one of alternate location group and send a SSB group.
It is L with one group of lengtheSSB needed for chronomere be interval, determine in SMTC window or send SSB window
Interior all alternate locations.
It include complete one group of L for each alternate location groupeA SSB, LeA SSB respectively corresponds SSB number can be with
Be it is discontinuous, be also possible to it is continuous, it is different, and the number value range of each SSB is 0~L-1.This group of SSB
Position in alternate location group is fixed.
No matter LeWhether the number of a SSB is continuous, is determining that alternate location is to number sequence from small to large according to SSB,
It is sequentially mapped in each SSB alternate location in one group of alternative SSB.One self-contained number of SSB is known as SSB reality
Number will be L in a length according to SSB actual numbereSSB group in determine according to actual number sequence from small to large
Number becomes SSB logical number.For example, L=4, Le=2, the expected SSB sent in base station is SSB1 and SSB3.So, one group
It include 2 SSB alternate locations in SSB alternate location, logical number is respectively SSB0_ and SSB1_.The logical number of SSB1 is
The logical number of SSB0_, SSB3 are SSB1_.For example, as shown in Fig. 8 (b), with 30KHz subcarrier spacing, for L=4.?
Duration is to share 20 alternate locations, each 1ms has 4 alternate locations in the transmission window of 5ms.Assuming that Le=2, then
This 20 alternate locations can be divided into 10 SSB alternate location groups, there is 2 SSB alternate locations, logical number point in each group
It Wei not SSB0_ and SSB1_.Assuming that expected 2 SSB sent in base station are SSB1 and SSB3, then from small to large according to SSB index
Sequentially, the logical number of SSB1 is SSB0_, and the logical number of SSB3 is SSB1_.Base station before any one alternate location group at
Function completes LBT, then can send in corresponding alternate location group.In Fig. 8 (b), in second SMTC window, base station is in time slot
LBT is not completed before 0,1,2, but completes LBT in first SSB alternate location of time slot 3, then base station can be sent out in time slot 3
Sending one group of SSB includes to connect SSB1 and SSB3；In third SMTC window, until 9 base station of time slot just completes LBT, then base station can
It include SSB1 and SSB3 to send one group of SSB in time slot 9.The resource of SSB1 and SSB3 is adjacent.
Base station can notify UE about L by system information or high-level signalingeInformation, for example, passing through RMSI
Which SSB is sent in L SSB of instruction in (remaining system inforamtion, system information, also referred to as SIB1)
Ssb-PositionsInBurst parameter determine.
It is similar with (1), determine the alternate location group of one group of SSB, it can be completely to be grown according to whether one group can be mapped
Degree is LeSSB as judgment basis, therefore for each have sufficient length send one group of SSB alternate location group, base station
The number L for the SSB that the one group of SSB actually sent includesdIt is constant, also, Ld=Le.Alternatively, determining the alternate location of one group of SSB
Group, only in one group of SSB of containment mapping part SSB position, the number L for the SSB that practical one sent group SSB in base station includesd≤
Le。
It is similar with (1), it in a SMTC window or sends in the window of SSB, base station can be in multiple alternate location groups
It attempts to send one group of SSB length to be LeSSB.Before each alternate location group, base station can carry out LBT.If a certain
LBT success before a alternate location group, base station can send one group of SSB in this alternate location group, in other alternative positions
It sets group and does not send SSB.One group of length is L by another implementationeSSB point be LLBTZu Zi group, every Ge Zi group need
Distinguish LBT, the SSB in a sub- group can be continuously transmitted.
(4) it is unit the time required to one group of SSB since SMTC is initially, entire SMTC is divided into several intervals, i.e.,
Several non-overlapping alternate location groups, the length of each alternate location group can send a SSB group, in alternate location group
Alternate location respectively correspond 0~L-1 of SSB number.If the curtailment of the last one alternate location group is complete to send one
SSB group, then the alternate location in alternate location group respectively corresponds SSB number 0,1 ... ....In a SMTC, base station is in office
It is continuously sent since any one alternate location with the SSB with alternate location reference numeral after meaning time LBT success.
Using chronomere needed for one group of SSB as interval, determines in SMTC window or send and is in the window of SSB all
The alternate location of SSB group.Using chronomere needed for a SSB as interval, the alternate location in a SSB in SSB group is determined
In alternate location.The alternate location of one SSB is numbered according to the SSB of a SSB and is determined, that is, the number of the SSB sent needs
In the number of the SSB alternate location at place.
It in a SMTC window or sends in the window of SSB, base station can attempt hair in the alternate location group of multiple SSB
Send SSB.Before each alternate location group, base station can carry out LBT.If the LBT success before some alternate location group,
Base station can send SSB in this alternate location group, not send SSB in other alternate location groups.A kind of implementation, base
One group of SSB can be continuously transmitted since this alternate location group by standing.SSB several L that the one group of SSB actually sent includesd≤
L.The L sent each timedIt is equal, also, Ld=Le.Base station can notify UE about L by system information or high-level signalinge
Information, for example, by indicating that the ssb-PositionsInBurst parameter of which SSB transmission in L SSB is true in RMSI
It is fixed.Another implementation, base station can continuously transmit one group or part SSB since this alternate location.For example, from this
A alternate location starts the end position to window, the only alternate location of part SSB, then the Ld sent each time may not be waited,
Wherein Ld≤Le.Another implementation, one group of SSB's is divided into LLBTThe sub- group of group SSB, every Ge Zi group SSB need to distinguish
LBT, the SSB in a sub- group can be continuously transmitted.Base station can continuously transmit a sub- group since this alternate location
SSB.And after this Ge Zi group is sent, LBT is reattempted, judges whether to send same group next according to LBT result
The SSB of Ge Zi group.Used LBT can be small with other sons in this group before the first sub- group in one group of SSB
LBT before group is different, for example, the LBT before the first sub- group is more conservative LBT, such as the time slot of CCA is longer either
The orientation angle of CCA is bigger, and LBT later can faster, such as only can include this using the direction of 25us LBT or CCA
The direction of Ge Zi group.If all LBT failures, in a SMTC window or send in the window of SSB, base station does not send SSB.
If the time slot that one group of SSB is occupied is essentially identical relative to the duration of SMTC window or the window for sending SSB, example
Such as, duration length is 5ms, and the time slot that one group of SSB is occupied is 4ms, if the expected SSB several L sent in base statione=L, side
Method (1) can not increase the probability for sending SSB, but method (4) can dramatically increase the probability for sending SSB.
As shown in Fig. 9 (a), with 15KHz subcarrier spacing, for L=8.Time slot needed for one group of SSB is 4ms, if Le
=L can not improve sending probability with the method for (1).According to the method for (4), it is assumed that time resource needed for a SSB is half
Slot, 0.5ms.According to the pattern of SSB, the alternate location of all time slots in SMTC window is determined, and numbering is SSB0,
SSB1,…SSB7,SSB0,SSB1.As can be seen that respectively corresponding two SSB groups there are two the alternate location group of SSB group.First
A alternate location group includes complete one group of SSB, and second alternate location group only includes SSB0, SSB1.For SSB0 and SSB1,
There are the first alternate location group and the second alternate location group corresponding respectively, for SSB2~SSB7, only first alternative position
It is corresponding to set group.Base station sends a SSB, can only send on position corresponding with the number of this SSB in alternate location
SSB.For example, base station needs to send 8 SSB, and then only there are three types of possible selections: LBT (a) is completed before first SSB,
Since first SSB0, SSB0~SSB7 is sent, (b) completes LBT before second SSB, since first SSB1, hair
It send SSB1~SSB7 and sends SSB0 on second position SSB0.(c) LBT is completed before third SSB, is opened from SSB2
Begin, send SSB2~SSB7 and sends SSB0, SSB1 on second SSB0, the position SSB1.If base station is allowed only to send
It is expected that the part SSB of the one group of SSB sent, such as that the expected transmission in base station is 8 SSB, but base station is until the 5th SSB
LBT is just completed, then base station sends SSB4~SSB7 and send out on second position SSB0, SSB1 since first SSB4
Send SSB0, SSB1.In this case, base station not sent SSB2 and SSB3.And in next SMTC, base station is according to the feelings of LBT
Condition, the SSB finally sent may be different from the SSB number sent in a upper SMTC.
In the method, the alternate location of one group of SSB is determined, it can be according to whether one group of complete SSB can be mapped
As judgment basis.
User equipment assume that, within long period of time, in each SMTC window, and if having sent one group of SSB,
The number for the SSB for including in one group of SSB in each SMTC window is identical.For example, if L=8, Le=2, the expected hair in base station
The SSB sent is SSB2 and SSB3, then in each SMTC window, if base station successfully completes LBT, one group of SSB of transmission is
SSB2 and SSB3.It, may be each if the last one alternate location group length in a SMTC window is not enough to comprising L SSB
The number for the SSB for including in one group of SSB in a SMTC window is slightly different.
Work as LeWhen≤L, if the index of the expected SSB sent in base station is continuous, such as L=8, LeThe index of=2, SSB
For SSB2 and SSB3, then, base station attempts to send the two SSB in the alternate location of SSB2 and SSB3.
If the index of the expected SSB sent in base station is discontinuous, such as L=8, LeThe index of=2, SSB are SSB1
And SSB3, then, base station attempts to send the two SSB in the alternate location of SSB1 and SSB3.Another implementation, base station
It attempts successively to send SSB1 and SSB3 in the alternate location of SSB0 and SSB1.
(5) identical as (4), one group of SSB required time is unit since SMTC is initially, entire SMTC is divided into several
A interval, i.e. several non-overlapping alternate location groups, the length of each alternate location group can send a SSB group, standby
The alternate location in set of locations is selected to respectively correspond 0~L-1 of SSB number.If the curtailment of the last one alternate location group is to send out
A complete SSB group is sent, then the alternate location in alternate location group respectively corresponds SSB number 0,1 ... ....In a SMTC
In, it is continuously sent since any one alternate location with corresponding with alternate location after the LBT success at any time of base station
The SSB of number.Using chronomere needed for one group of SSB as interval, determines in SMTC window or send and is in the window of SSB all
The alternate location of SSB group.Using chronomere needed for a SSB as interval, the alternate location in a SSB in SSB group is determined
In alternate location.The alternate location of one SSB is numbered according to the SSB of a SSB and is determined, that is, the number of the SSB sent needs
In the number of the SSB alternate location at place.The method for determining the alternate location group of one group of SSB is also identical as (4), is not repeated.
Unlike (4), work as LeWhen < L, in order to increase the probability for sending SSB, it can specify that when the expected transmission in base station
SSB several L that one group of SSB includeseWhen < L, SSB number i, j satisfaction When, base station
It in number can be i or any one SSB alternate location of j is attempted to send has SSB with alternate location reference numeral, and
SSBiAnd SSBjBeam direction having the same.A kind of implementation, base station can prepare L SSB, respectively SSB in advance0~
SSBL-1, base station is according to LBT's as a result, sending the SSB having with alternate location reference numeral in the successful alternate location of LBT, in fact
SSB several L that border is sentd≤Le.Since the LBT successful time may be different in each transmission window, each transmission window
The number for the SSB for including in one group of interior SSB may be different.
By taking Fig. 9 (a) as an example, time slot needed for L=8, one group of SSB is 4ms.Assuming that Le=2, then, base station can be
One SSB0 alternate location, SSB2 alternate location, SSB4 alternate location, SSB6 alternate location and second SSB0 alternate location
It attempts to send and numbers an identical SSB, and the SSB wave beam having the same of these alternate locations with alternate location, i.e., together
The SSB of one wave beam has 4 times in a window attempts the chance sent；It base station can be in first SSB1 alternate location, SSB3
Alternate location, SSB5 alternate location, SSB7 alternate location and second SSB1 alternate location are attempted to send to be compiled with alternate location
Number identical SSB, and the SSB wave beam having the same of these alternate locations, i.e., the SSB of the same wave beam have in a window
The chance that 4 trials are sent.Assuming that LBT is just completed before the SSB4 in first SMTC starts in base station, then base station is at this
SSB4, SSB5 are sent in SMTC, LBT is just completed in base station before the SSB7 in next SMTC starts, then base station is at this
SSB7, SSB0 are sent in SMTC.Wherein, SSB4 is corresponding with SSB0, and SSB5 is corresponding with SSB7.
Base station can notify UE about L by system information or high-level signalingeInformation, for example, pass through RMSI middle finger
Show that the ssb-PositionsInBurst parameter which SSB is sent in L SSB determines.
(6) it is unit the time required to one group of SSB since SMTC is initially, entire SMTC is divided into several intervals, i.e.,
Several non-overlapping alternate location groups, it is L that the length of each alternate location group, which can send a length,eSSB group, it is standby
The alternate location in set of locations is selected successively to respectively correspond LeA SSB number, this LeA SSB number according to sequence from small to large according to
Minor sort, value can be discontinuous, can also be continuous, and each SSB Serial Number Range is 0~L-1.One SSB is self-contained
Number is known as SSB actual number, will be L in a length according to SSB actual numbereSSB group according to actual number from small
The number determined to big sequence becomes SSB logical number.For example, L=4, Le=2, the expected SSB sent in base station be SSB1 and
SSB3.It so, include 2 SSB alternate locations in one group of SSB alternate location, logical number is respectively SSB0_ and SSB1_.SSB1
Logical number be SSB0_, the logical number of SSB3 is SSB1_.If predefined work as LeWhen < L, the expected SSB sent in base station
Actual number must be continuous, and be since SSB0, then, actual number is equal to logical number.
If the curtailment of the last one alternate location group is to send a complete length as LeSSB group, then alternatively
Alternate location in set of locations successively sorts according to the sequence of SSB logical number from small to large, remaining not have alternate location pair
The SSB answered is without sending.In a SMTC, after the LBT success at any time of base station since any one alternate location
Continuously sending has the SSB numbered with alternate location counterlogic.
It is L with one group of lengtheSSB needed for chronomere be interval, determine in SMTC window or send SSB window
The alternate location of interior all SSB groups.Using chronomere needed for a SSB as interval, determine in a SSB in SSB group
Alternate location in alternate location.The alternate location of one SSB is determined according to the SSB logical number of a SSB, that is, is sent
The logical number of SSB need to be equal to the logical number of the SSB alternate location at place.
It in a SMTC window or sends in the window of SSB, base station can attempt hair in the alternate location group of multiple SSB
Send SSB.Before each alternate location group, base station can carry out LBT.If the LBT success before some alternate location group,
Base station can send SSB in this alternate location group, not send SSB in other alternate location groups.A kind of implementation, base
One group of SSB can be continuously transmitted since this alternate location group by standing.SSB several L that the one group of SSB actually sent includesd=
Le, and the L sent each timedIt is equal.Another implementation, base station can continuously transmit one since this alternate location
Group or part SSB.For example, to the end position of window, the only alternate location of part SSB since this alternate location, then often
The L once sentdIt may not wait, wherein Ld≤Le.Another implementation, one group of SSB's is divided into LLBTThe sub- group of group SSB,
Every Ge Zi group SSB needs LBT respectively, the SSB in a sub- group that can continuously transmit.Base station can be opened from this alternate location
Begin, continuously transmits a sub- group SSB.And after this Ge Zi group is sent, LBT is reattempted, is according to the judgement of LBT result
The SSB of the no next Ge Zi group for sending same group.
As shown in Fig. 9 (b), with 15KHz subcarrier spacing, for L=8.Needed for the SSB that one group of complete length is L
Time slot is 4ms.According to the method for (6), it is assumed that Le=2, SSB actual number be SSB1 and SSB3, logical number be SSB0_ and
SSB1_.Time resource needed for one SSB is half of slot, 0.5ms.According to the pattern of SSB, determine all in SMTC window
The alternate location of time slot totally 10, logical number SSB0_, SSB1_ ... SSB0_, SSB1_.As can be seen that there is 5 SSB
The alternate location group of group, respectively corresponds 5 SSB groups.For SSB1 and SSB3 with logical number SSB0_ and SSB1_, respectively
There are 5 alternate location groups corresponding.Base station send a SSB, can only in alternate location with the logical number pair of this SSB
SSB is sent on the position answered.For example, base station needs to send this 2 SSB, can appoint in the alternate location of this 5 SSB0_
LBT is completed before meaning one, it can sequence sends SSB1 and SSB3, or appointing in the alternate location of preceding 4 SSB1_
Complete LBT before meaning one, it can sequence sends SSB3 and SSB1, or the last one SSB1_ alternate location it
Before complete LBT, send SSB3.
In the method, the alternate location of one group of SSB is determined, it can be according to whether one group of length can be mapped for Le's
SSB is as judgment basis.
Base station can notify UE about L by system information or high-level signalingeInformation, for example, passing through RMSI
Which SSB is sent in L SSB of instruction in (remaining system inforamtion, system information, also referred to as SIB1)
Ssb-PositionsInBurst parameter determine.
(7) SMTC is divided into several intervals, i.e., several alternate location groups, the length of each alternate location group can
Send a SSB group.It is continuous since any one alternate location in any one alternate location group after LBT is completed in base station
Ground sends SSB, and the SSB of transmission can not carried out in numerical order since arbitrary number, or since arbitrary number sequentially
Circulation carries out.
Using chronomere needed for one group of SSB as interval, determines in SMTC window or send and is in the window of SSB all
The alternate location of SSB group.Using chronomere needed for a SSB as interval, the alternate location in a SSB in SSB group is determined
In alternate location.The alternate location of one SSB is any one alternate location in the alternate location of SSB group.
In a SMTC window, base station can attempt to send SSB in the alternate location of multiple SSB.In each alternative position
Before setting, base station can carry out LBT.If the LBT success before some alternate location, base station can be in this alternative position
Beginning is set, one group of SSB is continuously transmitted, does not send SSB in other alternate locations.The SSB number that the one group of SSB actually sent includes
Ld≤L.And the L sent each timedIt is equal.Another implementation, base station can be continuous to send out since this alternate location
Send one group or part SSB.For example, to the end position of window, the only alternate location of part SSB since this alternate location,
The L then sent each timedIt may not wait.Another implementation, one group of SSB's is divided into LLBTZu Zi group, every Ge Zi group need
Distinguish LBT, the SSB in a sub- group can be continuously transmitted.Base station can continuously transmit a son since this alternate location
Group SSB.After this Ge Zi group is sent, LBT is reattempted, judges whether to send same group next according to LBT result
The SSB of Ge Zi group.Continue to send until entire SSB group is sent if LBT success.The first son in one group of SSB
LBT used by before group can be different with the LBT before other sub- groups in this group, for example, the first sub- group it
Preceding LBT is more conservative LBT, for example, CCA time slot is longer or the orientation angle of CCA is bigger, LBT later can be more
Fastly, for example, can using 25us LBT or CCA direction only include this Ge Zi group direction.If all LBT failures,
It in one SMTC window or sends in the window of SSB, base station does not send SSB.
As shown in Figure 10 (a), with 15KHz subcarrier spacing, for L=8.Time slot needed for one group of SSB is 4ms.First root
According to the pattern of SSB, the alternate location of all time slots in SMTC window is determined, and numbering is SSB0, SSB1 ... SSB7, SSB0,
SSB1.Base station sends a SSB, can send in the position of any one in alternate location, and the SSB for not limiting the SSB of transmission is compiled
It is number identical as the number of alternate location, i.e., for any one SSB, alternate location a total of 10.Such benefit is, for
A SSB is sent, there are more alternate locations.In some scenes, base station needs to carry out before the SSB of sending direction i
The LBT of direction i, due to any one alternate location can sending direction i SSB, improve the probability of transmission.Such as
Shown in Figure 10 (a), user equipment does not complete LBT in first and second alternate location, completes LBT in third position,
Therefore can send one group of SSB since third alternate location, base station can be with arbitrary SSB number transmission, such as can be with
SSB0, SSB1 ... SSB7 are sent, or SSB2, SSB3 ... SSB7, SSB0, SSB1 or other sequences can be sent.
In the method, the alternate location of one group of SSB is determined, it can be according to whether one group of complete SSB can be mapped
As judgment basis.
(8) SMTC is divided into several intervals, i.e., several alternate location groups, the length of each alternate location group can
Sending a length is LeSSB group.After LBT is completed in base station, from any one alternative position in any one alternate location group
It sets beginning and continuously sends SSB, the SSB of transmission can not carried out in numerical order since arbitrary number, or be compiled from any
Number start sequentially circulation carry out.
Using chronomere needed for one group of SSB as interval, determines in SMTC window or send and is in the window of SSB all
The alternate location of SSB group.Using chronomere needed for a SSB as interval, the alternate location in a SSB in SSB group is determined
In alternate location.The alternate location of one SSB is any one alternate location in the alternate location of SSB group.
In a SMTC window, base station can attempt to send SSB in the alternate location of multiple SSB.In each alternative position
Before setting, base station can carry out LBT.If the LBT success before some alternate location, base station can be in this alternative position
Beginning is set, one group of SSB is continuously transmitted, does not send SSB in other alternate locations.The SSB number that the one group of SSB actually sent includes
Ld=Le.And the L sent each timedIt is equal.Another implementation, base station can be continuous to send out since this alternate location
Send one group or part SSB.For example, to the end position of window, the only alternate location of part SSB since this alternate location,
The L then sent each timedIt may not wait, and Ld≤Le.Another implementation, one group of SSB's is divided into LLBTZu Zi group, often
Ge Zi group needs LBT respectively, the SSB in a sub- group that can continuously transmit.It base station can be since this alternate location, even
Supervention send a sub- group SSB.After this Ge Zi group is sent, LBT is reattempted, judges whether to send according to LBT result same
The SSB of one group of next Ge Zi group.Continue to send until whole length is L if LBT successeSSB group be sent.
As shown in Figure 10 (b), with 15KHz subcarrier spacing, for L=8.Time slot needed for one group of SSB is 4ms.First root
According to the pattern of SSB, the alternate location of all time slots in SMTC window is determined, share 10 alternate locations.Base station sends one
SSB can be sent in the position of any one in alternate location, not limit the number of the SSB number and alternate location of the SSB of transmission
It is identical, i.e., for any one SSB, alternate location a total of 10.Such benefit is that, for sending a SSB, have more
More alternate locations.According to the method for (8), it is assumed that Le=2, SSB actual number are SSB1 and SSB3, as shown in Figure 10 (b), are used
Family equipment does not complete LBT in the 1st~3 alternate location, completes LBT the 4th position, therefore can be from the 4th alternative position
It sets and starts to send one group of length as LeSSB, base station can number with arbitrary SSB and be sent, such as SSB1 can be sent,
SSB3, or SSB3, SSB1 can be sent.
In the method, the alternate location of one group of SSB is determined, it can be according to whether one group of complete SSB can be mapped
As judgment basis.
Base station can notify UE about L by system information or high-level signalingeInformation, for example, pass through RMSI middle finger
Show that the ssb-PositionsInBurst parameter which SSB is sent in L SSB determines.
(9) SMTC is divided into several alternate location groups that may be overlapped, each alternate location group
Length can send a SSB group.
With a time slot, perhaps the chronomere of subframe (being fixed as 1ms) is to be spaced to determine in SMTC window or send
All alternate locations in the window of SSB.
It include complete one group of L SSB for each alternate location group, practical one sent group SSB in base station includes
The number L of SSBd≤ L, and the base station several L of practical SSB sentd≤Le。
As shown in Figure 11 (a), one group of SSB includes 8 SSB, time 4ms.Each alternative position is determined by interval of 1ms subframe
Set group.Assuming that each alternate location group need to include the position of L all SSB, then, only 2 alternate locations in 5ms window
Group.4 ms that the starting point that first alternate location group is 5ms starts, the 2nd ms that second alternate location group is 5ms start
4 ms, i.e. 2~5ms.
A kind of implementation, similar with the method for (4), the alternate location of a SSB is numbered true according to the SSB of a SSB
It is fixed.In Figure 11 (a), 2nd ms of the base station in 5ms window completes LBT, i.e. second alternate location group before starting.It sends
SSB be followed successively by SSB2, SSB3 ... SSB7, SSB0, SSB1.
Another implementation compiles an alternate location group in this alternate location group since 0~L-1
Number.That is in Figure 11 (a), the 2nd ms of the base station in 5ms window completes LBT, i.e. second alternate location before starting
Group.The SSB of transmission should be SSB0, SSB1 ... SSB7.
(10) identical as (9), a SMTC is divided into several alternate location groups that may be overlapped, Mei Gebei
Select the length of set of locations that can send a SSB group.Between chronomere with a time slot or subframe (being fixed as 1ms) is
Every determining all alternate locations in SMTC window or in the window of transmission SSB.For each alternate location group, included
One group of whole L SSB, the number L for the SSB that practical one sent group SSB in base station includesd≤ L, and the practical SSB sent in base station
Number Ld≤Le。
Unlike (9), work as LeWhen < L, in order to increase the probability for sending SSB, it can specify that when the expected transmission in base station
SSB several L that one group of SSB includeseWhen < L, in an alternate location group, SSB number i, j satisfactionWhen, base station can be i in number or any one SSB alternate location of j is tasted
Examination sends the SSB having with alternate location reference numeral, and SSBiAnd SSBjBeam direction having the same.A kind of realization side
Formula, base station can prepare L SSB, respectively SSB in advance0~SSBL-1, base station is according to LBT's as a result, successfully alternative in LBT
Position sends the SSB, the several L of SSB actually sent having with alternate location reference numerald≤Le.Due in each transmission window
The LBT successful time may be different, and therefore, the number for the SSB for including in each one group of SSB sent in window may be different
's.
(11) SMTC is divided into several alternate location groups that may be overlapped, each alternate location group
It is L that length, which can send a length,eSSB group.
With a time slot, perhaps the chronomere of subframe (being fixed as 1ms) is to be spaced to determine in SMTC window or send
All alternate locations in the window of SSB.
It include complete one group of L for each alternate location groupeA SSB, practical one sent group SSB in base station include
SSB number Ld≤Le。
A kind of implementation, similar with the method for (6), the alternate location of a SSB is true according to the logical number of a SSB
It is fixed.If predefined work as LeWhen < L, the actual number of the expected SSB sent in base station must be continuous, and be opened from SSB0
Begin, then, actual number is equal to logical number.Assuming that L=8, Le=4, respectively SSB0, SSB1, SSB3 and SSB7.Figure 11
(b) in, 2nd ms of the base station in 5ms window completes LBT, i.e. second alternate location group before starting.Second alternative position
It is SSB2_, SSB3_, SSB_0 and SSB1_ that group, which is set, comprising logical number, and the SSB of transmission is followed successively by SSB3, SSB7, SSB0,
SSB1。
Another implementation, for an alternate location group, in this alternate location group, from 0~Le- 1 starts to patrol
Collect number.That is in Figure 11 (b), the 2nd ms of the base station in 5ms window completes LBT before starting, i.e., second alternative
Set of locations.The logical number of the SSB of transmission should be SSB0_, SSB1_ ... SSB3_.
For mode (3) (6) (8) (11), work as LeWhen < L, the logical number of SSB alternate location is according to LeIt determines, and
It includes L that the resource that each SSB alternate location occupies, which is according to a SSB group,eA SSB is determined.Another implementation, when
LeWhen < L, the logical number of SSB alternate location is according to LeIt determines, but the resource that each SSB alternate location occupies is according to one
What a SSB group included L SSB to determine.
In systems in practice, in fact it could happen that the starting point of SMTC is not on first half or the feelings of the starting point of rear half of SF
Condition.A kind of implementation, method as described above determine the SSB alternate location in SMTC.For example, it is assumed that shown in Fig. 9 (a)
5ms window starting point be 3ms, i.e., window be 3ms~7ms.Although starting point is not the multiple of 5ms, i.e., preceding half or later half
The starting point of a SF, but SSB alternate location is still starting point according to the starting point of SMTC, determines 10 SSB alternate locations.It is another
Kind implementation, can be based on process as described above further according to the relationship of SMTC window and the window for sending SSB, Huo Zhegen
According to the starting point of SMTC window and the relationship of first half or rear half of SF of starting point, SSB alternate location is determined.For example, only by SMTC
The interior SSB corresponded in the window for sending SSB sends the money except the window of SSB and being located within SMTC window as SSB alternate location
Source is not SSB alternate location, and base station cannot attempt to send SSB over these locations.Wherein, the starting point for sending the window of SSB is one
First half or rear half of SF of starting point in a specific SF.For example, the starting point of 5ms window shown in Fig. 9 (a) is 3ms, i.e. window
Mouth is 3ms~7ms.Assuming that the transmission window starting point of SSB is 5ms, then, in SMTC, only since the position of 5ms, determine
6 SSB alternate locations of 5ms~7ms, and this 6 SSB alternate locations should respectively correspond SSB0~SSB5.Another reality
Existing mode, when limiting base station configuration SMTC, it is necessary to meet the starting point of SMTC window for first half or rear half of SF in a SF
Starting point.
Due to needing to carry out LBT, and the time span T that can be continuously transmitted after LBT success before sending signal
Related with CCA (carrier wave detection) number of LBT, i.e., T is longer, and required CCA number is more, one group for as far as possible sending needs
Each SSB of SSB compact in time discharge is conducive to shorten the time span T for sending one group of SSB, allows to primary
All SSB are continuously transmitted after LBT success, or the CCA number of LBT can be reduced, improve the probability of success of LBT.
The SSB of 5G NR includes 4 symbols in the prior art, wherein first symbol is PSS, the 3rd symbol is SSS, the
2, the DMRS that 4 symbols are PBCH and PBCH.Each SSB not instead of adjacent discharge, it is spaced, such as Fig. 2~Fig. 5,
And shown in Fig. 8~Figure 10, Figure 11 (a), Figure 11 (b).It, can be by each SSB next to discharge in order to reduce time span T
(the specific pattern that the present invention does not limit each signal in SSB), as shown in figure 12, the length of one group of SSB shortens to 3ms.If
One system supports a variety of different discharging modes, when base station can measure for user configuration, user is notified to be detected cell and adopt
It is any SSB pattern.For example, base station can only be sent if secondary cell (Scell) can only be used as by being detected cell
PSS/SSS and PBCH, without sending system information, therefore each only SSB comprising SS and PBCH next to discharge.If
Detected cell can be used as main plot (Pcell), and base station needs to send PSS/SSS/PBCH and sends system information, because
This, more reasonable method is that a SSB is sent together with corresponding RMSI, for example, can send 4 for a SSB
The RMSI of SSB and 2 symbol of symbol, i.e. 6 symbols, as unit of 6 symbols, by each SSB next to arrangement, or
SSB is sent in a manner of frequency division multiplexing with corresponding RMSI, and by each SSB and corresponding RMSI on time latitude closely
Discharge.
Another problem is, may if having vacant symbol between adjacent S SB, such as the discharging modes of existing SSB
Base station is needed to carry out LBT again among vacant symbol.In order to avoid carrying out LBT again, when realization, should make as far as possible
It after the LBT success carried out before initial SSB, is continuously transmitting in time T, in order to realize that no gap, base station send filling
Bit, or other downlink signals are sent, such as RMSI takes the idle characters between adjacent S SB.
SSB discharging modes described above are suitable for the invention any SSB sending method.
Step 302, user equipment receives PBCH.
In step 302, user equipment receives the PBCH sent together with SS according to the SS received in step 301.
Step 303, user equipment is measured according to the SSB received, and determines cell information where SSB.
According to the sequence of the SS received, the cell ID of cell where judging the SS or judgement are used for user equipment
The ID that SS is generated.
According to the mode of (1) or (2) or (3) in step 301, in different SMTC windows or send in the window of SSB, it is right
In identical SSB numbered positions, base station needs to be sent with identical beam direction.User equipment can be according to receiving twice
The time location of the SSB arrived determines whether the two SSB are located at identical SSB numbered positions, SSB number having the same or
Person's SSB logical number can merge testing result to judge whether to meet QCL relationship.For the side of (2) in step 301
Formula, further, SSB number i, j satisfactionSSBiAnd SSBjBeam direction
Identical, user equipment can determine whether the difference of the two SSB number is Le according to the time location of the SSB received twice
Integral multiple can merge testing result to judge whether to meet QCL relationship.For example, setting SMTC window or sending SSB window
Period be Tss, it is assumed that the time span of one group of SSB is divided into X between X or two adjacent groups SSB, and the time of a SSB is long
Degree is divided into Y between Y or two neighboring SSB, then, user equipment assume that time relationship meets m*Tss+n*X+l*Y
Two SSB be QCL, wherein n=0,1 ... N-1, N are a SMTC window or send the alternative of one group of SSB in SSB window
The number of position, according to the method for (1) in step 301, l is the actual number of SSB, and l=0,1 ... L-1, L are one complete
The SSB number that SSB group is included；Alternatively, according to the method for (3) in step 301, logical number of the l for SSB, l=0,1 ...
Le-1,LeSSB number for including by the expected SSB group sent in base station, m is integer.Alternatively, according to (2) in step 301
Method, SSB number i, j meet When, SSBiWith SSBjBeam direction phase
Together.If UE can not obtain LeInformation, then user equipment assume that time relationship meets two of m*Tss+n*X+l*Y
SSB is QCL, and wherein X is the time span of one group of SSB or the interval of two adjacent groups SSB, X=1.If UE has obtained Le
Information, then X be the two adjacent groups SSB with same beam interval, X=0.5ms.
It is not difficult to find out that the method at least for (1) of step 301, user equipment is without receiving PBCH, so that it may which be determined
A little SSB meet QCL relationship.For only need to be using cell as the measurement of granularity, this method can be met the requirements.I.e. for only need to be with
Cell is the measurement of granularity, and user can only execute step 301 and step 303, and without demodulating PBCH in step 303.Otherwise,
User need to execute step 301~303.
Determine that SSB is numbered if necessary to user equipment, for example, need to complete using wave beam as the measurement of granularity with report, can be with
It determines one of in the following way.User equipment can report the measurement result of the SS and the SSB number of the SS.
(3.1) if be measured cell with serving cell be it is quasi synchronous, such as the time difference of the two cells recycling
Perhaps the half of the time interval of PSS of the time difference less than two adjacent SSB or time difference are less than in advance within prefix CP
The thresholding of definition, user equipment can be according to the SS time location of the detected cell of configuration, the SS detected relative to service
The timing relationship of cell, the SS confirmly detected corresponding SSB number.For example, serving cell configures the hair for being measured cell
The period for sending SSB window is 40ms, and time migration is 0 subframe, and configures detection SSB1 and SSB2.By taking Fig. 8 (a) as an example, use
Family equipment assume that serving cell and the clock of detected cell are substantially aligned, on the basis of the timing of serving cell,
Detect PSS in the 9th symbol in 42ms, it can judgement is SSB1 because this PSS be located at second in window it is alternative
In the position of SSB1 in set of locations.Assuming that user equipment detects that PSS, user can also in the 10th symbol in 42ms
To determine to be SSB1, because it was assumed that the one of the time gap of PSS of the time difference of the two cells no more than two adjacent S SB
Half, that is, it is no more than 2 symbols.
(3.2) if it is asynchronous for being measured cell with serving cell, but serving cell can obtain measured cell
Timing information, then when serving cell can be by configuring measurement, the auxiliary information of setup time determines user equipment
SSB number.User equipment can be according to the SS time location of the detected cell of configuration, the SS detected relative to serving cell
Timing relationship and the corresponding SSB number of the SS that confirmly detects of the auxiliary information of setup time.For example, serving cell is matched
The period for setting the transmission SSB window of measured cell is 40ms, and time migration is 0 subframe, and it is small relative to servicing to be measured cell
The time offset in area is 1 subframe, and configures detection SSB1 and SSB2.By taking Fig. 8 (a) as an example, user equipment be assume that
Serving cell and the clock of detected cell are substantially aligned, the 9th symbol on the basis of the timing of serving cell, in 43ms
PSS is detected in number, it can judgement is SSB1, because this PSS is located at the SSB1 in second alternate location group in window
Position in.
(3.3) if serving cell can not obtain the timing information of measured cell or serving cell is not user
Setup time auxiliary information or user equipment be in initial access state, and user equipment can be by sending together with SS
Other signals determine that SSB is numbered.For example, SSB number can be carried by the DMRS (demodulated reference signal) of PBCH, SSB is compiled
Number as determine DMRS sequence initial value a variable.Or SSB can be carried by the MIB (Master Information Block) of PBCH and compiled
Number.Perhaps SSB number can be carried by the DMRS of system information RMSI or carried by RMSI.Alternatively, if being configured with
CSI-RS (channel state information reference signals) is sent together with SSB, can be compiled by the time, frequency, code resource bearing SSB of CSI-RS
Number.Alternatively, other above multiple combined signals can be indicated.For example, 6 bit indication SSB is needed to number when L=64, it can be with
Partial bit is carried by DMRS, and partial bit is carried by PBCH or RMSI.
If user equipment it needs to be determined that cell where detected SSB temporal information, user equipment can by with
Other signals that SS is sent together determine the number of time slot and/or the number of SF.Indicate that the number of SF can be by PBCH or RMSI
Carrying.The number or preceding half or rear half of SF of instruction for indicating time slot or subframe can be by the DMRS's or RMSI of PBCH
DMRS or CSI-RS or other reference signals or PBCH or RMSI carrying.The number for indicating time slot, can be needed for one group of SSB
Chronomere be granularity indicated.According to the pattern of predefined SSB, and the one group of SSB indicated is in predefined figure
Position in sample determines time slot or sub-frame information.Predefined pattern can be with half before a SF or rear half of SF
Starting point be one group of starting point or multiple groups SSB alternate location pattern.For example, it is assumed that one group of SSB is not across half of front and back
SF, and assume that an alternate location must include complete one group of SSB, it is possible toBit
Indicate the time slot or subframe number in a SF.By taking Fig. 8 (a) as an example, X=1 then needs log210=4 bit indicates.Assuming that
Bit indication is 0110, then it represents that the SSB1 that user detects is located in the 7th alternate location in SF, i.e. SF's
Afterwards in the 2nd ms in half of 5ms.In another example including X in half of SF1The position of a one group of SSB, as shown in Fig. 8 (a),
In half of SF, the position of 5 groups of SSB is contained, it is possible to use log2(2·X1)=log210=4 bit indicates.Example again
Such as, by taking Fig. 8 (b) as an example, X=0.5ms then needs log220=5 bit indicates.Assuming that bit indication is 1100, then it represents that
The SSB3 that user detects is located in the 13rd alternate location in a SF, i.e., and the 1.5th in rear half of 5ms of one SF
In ms.Because the logical number of SSB3 is SSB1_, therefore the position where SSB3 is the 9th~12 symbol in 1.5ms.
If one group of SSB can cross over half of front and back SF, log can be used2Time slot or subframe in one SF of (10/X) bit indication
Number.Because position of each SSB in each group of SSB is predefined, and there is unique correspondence in the position of each group of SSB
Time slot or subframe number, therefore, UE receive SSB and this SSB be located at which group the position SSB instruction, i.e.,
It can be inferred that time slot or subframe number where this SSB.How base station specifically indicates that the SSB group where SSB, the present invention are not done
It limits.For example, base station can be first half or rear half of SF, Yi Ji with independent bit field or the instruction of different forms
In which group SSB in this half of SF, alternatively, base station can be indicated with a bit field first half or rear half of SF, and
In which group SSB in this half of SF, in this case, the starting point of predefined pattern is preceding half of SF of a specific SF
Starting point.
According to the mode of (4) or (5) or (6) in step 301, in different SMTC windows or send in the window of SSB, it is right
In identical SSB numbered positions, base station needs to be sent with identical beam direction.For the mode of (5) in step 301,
Further, SSB number i, j meet SSBiAnd SSBjBeam direction phase
Together.User equipment can determine that the two SSB SSB whether having the same is compiled according to the time location of the SSB received twice
Whether number perhaps identical SSB logical number or SSB number meetFrom
And judge whether to meet QCL relationship, it can merge.Specific method is identical as the method for (1) or (2) or (3), and user equipment can be with
Assuming that two SSB that time relationship meets m*Tss+n*X+l*Y are QCL.If user is not allowed to merge multiple testing results,
Base station can not be then limited to be sent with identical beam direction in identical SSB numbered positions.For that only need to be with cell
The measurement of granularity, user can only execute step 301 and step 303, and without demodulating PBCH in step 303.Otherwise, Yong Huxu
Execute step 301~303.
Determine that SSB is numbered if necessary to user equipment, for example, need to complete using wave beam as the measurement of granularity with report, can be with
According to any one determination in (3.1)~(3.3).
If user equipment it needs to be determined that cell where detected SSB temporal information, user equipment can by with
Other signals that SS is sent together determine the number of time slot and/or the number of SF.It is identical as the method for (1) or (2) or (3), refer to
The number for showing time slot is indicated using chronomere needed for one group of SSB as granularity.According to the pattern of predefined SSB, and
Position of the one group of SSB indicated in predefined pattern, determines time slot or sub-frame information.By taking Fig. 9 (a) as an example, it is assumed that one group
SSB assumes that an alternate location group can only include the part SSB in one group of SSB not across half of front and back SF, that
, Ke YiyongTime slot or subframe number in one SF of bit indication, wherein one group complete
The time span X=4 of SSB.Assuming that bit indication is 0000, then it represents that the SSB1 that user detects is located at the 1st in a SF
In a alternate location, i.e., in the 1st ms in preceding half of 5ms of one SF.In another example including X in half of SF1A one group
The position of SSB in half of SF, contains the position of 2 groups of SSB as shown in Fig. 9 (a), it is possible to log2 (2X1)=
log24=2 bit indicates.By taking Fig. 9 (b) as an example, it is assumed that one group of SSB is not across half of front and back SF, and hypothesis one is standby
Selecting set of locations can only include the part SSB in one group of SSB, it is possible toBit indication
Time slot or subframe number in one SF, wherein the time span X=1ms of one group of complete SSB.Because each SSB is every
Position in one group of SSB is predefined, and there are unique corresponding time slot or subframe number in the position of each group of SSB, therefore,
UE is receiving which group position SSB SSB and this SSB is located at, i.e., it can be inferred that corresponding time slot or subframe number.
According to the mode of (7) or (8) in step 301, in different SMTC windows or send in the window of SSB, for phase
With the SSB of SSB number, base station needs to be sent with identical beam direction.Unlike (1)~(4), due to (5) or
(6) relationship of SSB numbered positions and SSB number is not one-to-one fixed relationship in method, and therefore, user equipment can not
Determine that SSB is numbered according to the time location of the SSB detected i.e. SSB numbered positions, it also can not be according to the time of the SSB detected
Position determines whether two SSB can merge.Base station must be numbered by the instruction SSB that other information is shown.If do not allowed
User merges multiple testing results, then can not limit base station and be sent with identical beam direction has identical SSB number
SSB。
It for only need to be using cell as the measurement of granularity, and be measured according only to the result of one-time detection, user can be with
Step 301 and step 303 are only executed, and without demodulating PBCH in step 303.Otherwise, user need to execute step 301~303.
User equipment can determine that SSB is numbered by other signals sent together with SS.For example, PBCH can be passed through
DMRS carrying SSB number, by SSB number as determination DMRS sequence initial value a variable.Or it can pass through
The MIB carrying SSB number of PBCH.Perhaps SSB number can be carried by the DMRS of system information RMSI or held by RMSI
It carries.Alternatively, being sent together with SSB if being configured with CSI-RS, can be numbered by the time, frequency, code resource bearing SSB of CSI-RS.
Alternatively, other above multiple combined signals can be indicated.For example, 6 bit indication SSB is needed to number when L=64, it can part
Bit is carried by DMRS, and partial bit is carried by PBCH or RMSI.
If user equipment it needs to be determined that cell where detected SSB temporal information, user equipment can by with
Other signals that SS is sent together determine the number of time slot and/or the number of SF.The number for indicating time slot, needed for a SSB
Chronomere be granularity indicated.According to the pattern of predefined SSB, and the SSB indicated is in predefined figure
Position in sample determines time slot or sub-frame information.By taking Figure 10 (a) or 10 (b) as an example, it is assumed that one group of SSB is not across front and back
Half of SF shares the alternate location of 10 SSB in half of SF.It is possible to use log2 (210)=5 bit indication one
Time slot or subframe number in SF.Assuming that bit indication is 01100, i.e. the SSBx1 that detects of user is located at the in a SF
First SSB alternate location in the 2nd ms in 13 alternate locations, i.e., in rear half of 5ms of one SF.In another example
In half of SF, the position comprising X1 SSB in half of SF, contains the position of 10 SSB as shown in Figure 10 (a), then,
Log2 (2X can be used1)=log220=5 bit indicates.Because there are unique corresponding time slot or son in the position of each SSB
Frame number, therefore, UE are receiving a SSB and are receiving the instruction which position SSB this SSB be located at, and can push away
Disconnected corresponding time slot or subframe number out.
According to the mode of (9) in step 301, can in the way of (4) or (7), determine SSB whether QCL, determination
The temporal information of SSB number and cell.According to the mode of (10) in step 301, it can determine that SSB is in the way of (5)
No QCL, the temporal information for determining SSB number and cell.According to the mode of (11) in step 301, can according to (6) or
(8) mode, determine SSB whether QCL, determine SSB number and cell temporal information.
In process as described above, no matter whether UE has obtained LeInformation, referred to the DMRS of PBCH and/or PBCH
When showing SSB number and temporal information, such as SF number, time-gap number etc., it is determined according to the maximum SSB number L of one group of SSB
Indicating mode.For example, in 2GHz frequency range, the subcarrier spacing of 30KHz, L=8.So, no matter the expected SSB sent in base station is a
Number LeValue, indicated in the way of corresponding to L=8 SSB number and temporal information.For example, the 3 of SSB number information
Bit LSB is indicated that 1 bit information of half SF of front and back instruction is carried by PBCH by DMRS.Similar, it is expected with RMSI instruction base station
When which in L SSB Le SSB of transmission be, the length of the instruction information is also to determine according to L, such as pass through
Length is the bitmap of L to indicate.
Method based on foregoing description indicates in system message, such as in PBCH or RMSI for determining cell
The bit of temporal information and QCL information can determine whether to compare these respectively according to the difference of the purposes of the bit information
Spy implements bit level scrambling before channel coding.Based on a kind of implementation, for being used to determine cell time information in PBCH
Bit, such as the part indication bit of SFN, half SF indication bit of front and back, with SSB alternate location group indication bit, in channel
Do not implement the scrambling of bit levels before coding, only implements the scrambling of bit levels after channel coding.For indicating the information of QCL
Bit, such as the expected SSB several information Le sent in base station, or meet the interval Ld of the SSB index of QCL relationship, in channel
Implement the scrambling of bit levels before coding.It is pre- for the information bit of instruction QCL, such as base station based on another implementation
SSB several information Le that phase sends, or meet the interval Ld of the SSB index of QCL relationship, do not implement bit before channel coding
The scrambling of bit levels is only implemented in the scrambling of rank after channel coding.
Scramble sequence before channel coding is denoted as sequence 1, the scramble sequence after channel coding is denoted as sequence 2.In order to
The merging gain of the PBCH received in the window of SSB is improved in different SMTC windows or sends, scramble sequence 1 can be according to lower section
One of formula determines:
(1) scramble sequence 1 is determined by the partial bit of cell ID and SFN；
(2) scramble sequence 1 is determined by cell ID, the partial bit and SSB alternate location group indication bit of SFN；
(3) scramble sequence 1 is determined by cell ID, the partial bit of SFN and the partial bit of SSB alternate location.
The determination of the partial bit of SFN can be determined according to the merging number of the SSB sending cycle of hypothesis and hypothesis.
Assuming that the sending cycle of SSB is N1 SFN, merging number is N2.So, for determining that the SFN bit of scramble sequence 1 is from most
+ 1 bit of log2 (N1) that low level starts (Least significant bit, LSB) starts, continuous a ratio of log2 (N2)
It is special.For example, it is assumed that the period for sending SSB in authorized spectrum band is 2 SFN, merging number is 4, then for determining scrambling sequence
The SFN indication bit of column 1 is the 2nd and the 3rd since low level.In another example if in unauthorized frequency range, it is assumed that send
The period of SSB is 4 SFN, and merging number is 4 times, then, for determining that the SFN indication bit of scramble sequence 1 is to open from low level
The the 3rd and the 4th to begin.In another example in Integrated access and backhaul (Integrated Access and Backhaul, IAB)
In communication system, UE assume that the period for sending SSB is 16 SFN, and merging number is 2 times, then, for determining scrambling sequence
The SFN indication bit of column 1 is the 5th since low level.
In order to avoid blind Detecting, it is based on a kind of implementation, for determining that the SFN indication bit of scramble sequence 1 is not implemented
Bit level scrambling before channel coding.Note that the method for the SFN indication bit of determining scramble sequence 1 described above is not limited to
In unauthorized frequency range, it is also applied for authorized spectrum band, such as IAB system.
In (2), the instruction of SSB alternate location group can bring merging gain.It is sent in window in different SSB, base station hair
Sending the SSB with identical SSB index to send in window in each SSB may be different.For example, base station is sent in first SSB
The starting point of first SSB alternate location group in window successfully completes LBT, sends SSB0 and SSB1, sends in window in next SSB
The starting point of second SSB alternate location group just complete LBT, SSB0 and SSB1 is sent in second SSB alternate location group.That
, different SSB alternate location groups further increase the randomness of scramble sequence 1.In order to avoid blind Detecting, based on one kind
Implementation, SSB alternate location group and SFN indication bit for determining scramble sequence 1 do not implement the bit before channel coding
Level scrambling.
In (3), the partial bit of SSB alternate location can also bring merging gain.Assuming that a SSB is sent in window
SSB alternate location is N3, then alternate location information can be indicated with M0=Ceil (log2 (N3)) bit.The wherein position minimum M1
It can be indicated with the DMRS of PBCH, such as M1=3, other positions are transmitted in PBCH.So, scramble sequence 1 can be standby according to SSB
The position (M0-M1) of location information is selected to determine.For example, a SSB sends in window and shares 32 SSB alternate locations, SSB alternate location
3 bits of LSB of instruction can be indicated by the DMRS of PBCH, and the MSB (Most of SSB alternate location is indicated in PBCH
Significant bit) 2.Then scramble sequence 1 can be according to the 1st and the 2nd of the MSB of SSB alternate location information really
It is fixed.It is not difficult to find out that the SSB alternate location information indicated in PBCH here is of equal value with SSB alternate location group information in (2)
's.Alternatively, M2=log2 (Ld), scramble sequence 1 can be determined according to the position (M0-M2) of SSB alternate location information.For example, one
A SSB sends in window and shares 32 alternative positions SSB (M0=5), and Ld=4 (M2=2), i.e. SSB index i and SSB index i+q*4 are
QCL, then scramble sequence 1 can be according to the 1st~3 determination of the MSB of SSB alternate location information.In order to avoid blind Detecting, base
In a kind of implementation, partial bit and SFN indication bit for determining the SSB alternate location of scramble sequence 1 are not implemented to believe
Bit level scrambling before road coding.
On the one hand, merging gain can be improved in scrambling mode described above, and avoids complicated blind examination, meanwhile, it can also
So that the specific information of cell where PBCH received by UE confirmation.For example, UE can be by attempting with different SFN's
Bit descrambles scramble sequence 1, determines that the cell is operate on unauthorized HF mode or authorized spectrum band mode.
Based on the method for above-mentioned steps 101, can support SSB in time window (SMTC window or the window for sending SSB) according to
Predefined rule is moved.In the time window, if base station also has sent other signals, the SSB moved is to other signals
To send and receive be influential.For example, cyclical signal or semi-static (semi-persistant) signal, according to matching
Set parameter, it should it is sent in a certain particular time-slot of the time window, when this time slot is also required to send SSB, the signal
May be clashed with SSB, for example, when/frequency/code resource on conflict；Alternatively, base station sends downlink in the time window
How data-signal, such as PDSCH carry out rate-matched to PDSCH, so that PDSCH is not overlapped with the SSB；Or institute
It states to send signal and generate in a transmit direction with the SSB and conflict, for example, the hair of the sending direction of the signal and the SSB
Send direction different, but base station is only capable of sending the signal of a transmission in same time quantum.In general, base station is in the configuration period
Property signal or when semi-static signal, can also configure the SSB for meeting QCL relationship with the signal numbers, to indicate the signal
Transmission/receiving direction.When the SSB of signal QCL number is different from the SSB number of SSB that base station to be sent, it is possible to
It clashes.
For sending the PDSCH sent in window, such as RMSI or common PDSCH in SMTC window or SSB, if there is
Part resource and the SSB that may be sent are no overlapping on time or frequency domain resource, then the mapping of this part resource can not
Consider SSB influence, and with may send SSB have on time and frequency domain resource it is overlapping, then can in the following way in
At least one determine that UE cannot receive the running time-frequency resource of any downlink signal or down physical channel in addition to SSB.Example
Such as, when receiving the PDSCH in SMTC, the position for these resources that PDSCH is avoided need to be determined, and determine the rate of PDSCH
Match or punching information.In another example being needed when receiving other periodic reference signals or the semi-static reference signal in SMTC
The position for the resource that the reference signal is avoided is determined, to be properly received the reference signal.Below by taking the reception of PDSCH as an example
Other reference signals or physical channel (such as PDCCH) that specific method is described, but is equally applicable in SMTC
It receives.
Preferably, in order to guarantee RMSI PDSCH performance, it is PDSCH distribution that the resource where SSB is always avoided in base station
Resource.
(a) base station passes through small in the burst (transmission burst) that in each time slot or each continuously transmits
The instruction of the control signaling of area public (C-PDCCH) or user group public (Group-specific PDCCH) in current time slots or
The resource information for the SSB for including in time slot in this burst of person.User equipment determines base according to the SSB resource information of instruction
It stands and how to carry out the rate-matched or punching of PDSCH, and carry out resource impact, to avoid the SSB resource information of instruction.Institute
Stating control signaling can send in the starting position of each time slot or each burst.It may include 1 ratio in the control signaling
It refers in particular to show all SSB alternate locations whether PDSCH needs to avoid in this time slot or this burst.As shown in Fig. 2,
The alternate location of 2 SSB in one time slot, 1 bit indicate whether that this 2 alternate locations require to avoid or all do not need to keep away
It opens；Either the control signaling may include whether K bit instruction PDSCH needs to avoid the K in this time slot or burst
Which position in a SSB alternate location, wherein K indicates the number of a time slot or the SSB alternate location in burst, burst
In SSB alternate location number according to the maximum time length of burst determine.As shown in Fig. 2, 2 SSB in one time slot
Alternate location, 2 bits indicate in this 2 alternate locations which needs to avoid；Or the control signaling may include log2
(K) bit indication PDSCH be need avoid this time slot or burst in since k-th of SSB alternate location to k-th
These SSB alternate locations that SSB alternate location terminates.It is assumed that base station once occupies channel from k-th of SSB alternate location
Start to send SSB, SSB can be continuously transmitted, until having sent all SSB.
(b) base station includes in the time slot where the PDSCH by the control signaling instruction of scheduling PDSCH transmission
The resource information of SSB.Before establishing connection for RRC, base station is not yet the resource that user configuration is used for rate-matched, then,
When dispatching PDSCH, it may include whether 1 bit indication PDSCH needs to avoid in this PDSCH in the control signaling
All SSB alternate locations；Or the control signaling may include whether K bit instruction PDSCH needs to avoid in this PDSCH
In K SSB alternate location in which position, wherein K indicate a time slot in SSB alternate location number；Or institute
Stating control signaling may include log2(K) bit indication PDSCH be need avoid it is alternative from k-th of SSB in this PDSCH
Position starts these SSB alternate locations terminated to k-th SSB alternate location, and wherein K indicates that the SSB in a time slot is alternative
The number of position.It is assumed that base station can continuously be sent out once sending SSB since k-th of SSB alternate location occupies channel
SSB is sent, until having sent all SSB.
(c) user assumes any one SSB that cannot be mapped in SMTC window or SSB transmission window when base station sends PDSCH
Alternate location.Note that the range of any one described SSB alternate location, is the maximum SSB number that may include according to one group of SSB
Determining, i.e. what L was determined.SSB several L that base station actual desired is sentd≤ L, and due to the influence of LBT, the practical hair in base station
The SSB number sent is likely less than Ld。
In some scenes, such as UE does not know the expected position SSB sent in the practical position SSB sent in base station and base station
Determination relationship when, such as the method for (2) or (5) in step 301, although in the transmission window that each has sent SSB, hair
The number of the SSB sent is identical, but the number of SSB may be different.Therefore UE can not believe according to the Le obtained before
It ceases and determines the expected SSB number sent in base station, so that base station can only determine that PDSCH need to avoid the alternative position any one SSB according to L
It sets.
In some scenes, user equipment not yet obtains LeIt needs to receive PDSCH, in this case, base station before information
It can only determine that PDSCH need to be avoided in any one SSB alternate location according to L.
When determining SSB alternate location, a kind of implementation, if base station is that UE is configured with SMTC, UE thinks SMTC
The interior all possible position SSB is SSB alternate location.As shown in Fig. 8 (a), in the 5ms in SMTC window, according to L=4,
5 groups of SSB alternate locations are shared, each group of SSB includes 4 SSB.This 20 SSB are SSB alternate location, and PDSCH cannot map
On any one position on to this 20 SSB alternate locations.
Another implementation, SSB alternate location are that first half or rear half of SF in a SF is starting point, predetermined
In the time span of justice, such as all possible position SSB in the window for sending SSB of 5ms.If the starting point of SMTC not position
In first half or when the starting point of rear half of SF, then it is alternative as SSB only will to correspond to the SSB in the window for sending SSB in SMTC
Position, PDSCH cannot be mapped to above.Such as Fig. 8 (a), it is assumed that the starting point of SMTC window be subframe 13, i.e., SMTC window be 13~
17ms.UE once or now receives SSB/PBCH and RMSI and has been determined that the starting point for sending the window of SSB is the later half of a SF
The starting point of a SF, window length are 5ms.So, correspond in SMTC, i.e. 15ms starts that (0~9ms is a SF, and 10~19 be the
Two SF, wherein 10~14 be the first half SF in second SF, 15~19 be later half SF), to 3 groups of SSB of 17ms, i.e. in SMTC
The 3rd, 4,5 group of SSB be SSB alternate location, PDSCH cannot be mapped to any one position in this 12 SSB alternate locations
On.The 1st, 2 group of SSB in SMTC window is not SSB alternate location, and PDSCH may map on these positions.
(d) user assume base station send PDSCH when cannot be mapped to system information instruction or base station configuration
SMTC window or SSB send any one SSB alternate location that the possibility in window sends SSB.It is different from (c), in the method, institute
The range of any one SSB alternate location is stated, further according to the expected SSB several L sent in base stationeDetermining.LeInformation,
It can be indicated for example, by MIB or RMSI or RRC signaling.Therefore this method is more suitable for the practical SSB sent in base station
Position is the subset of the expected position SSB sent in base station and UE is received comprising LePDSCH after the PDSCH of information,
And (c) it is more suitable for relationship or use that UE does not know the expected position SSB sent in the practical position SSB sent in base station and base station
L has not been obtained in family equipmenteThe reception of PDSCH before information.
Base station can indicate the position of one group of SSB by RRC signaling, determine that all SSB are standby according to the position of this group of SSB
Bit selecting is set.For example, indicated by half of SF information of SF/ and system information according to indicated by PBCH and/or system information
The information such as the period of SSB determine the window for sending SSB.Each group in the window for sending SSB is determined according to the RRC signaling of base station
Which specific SSB can be used as SSB alternate location in SSB, this RRC signaling is identical for each group of SSB.According to step
The mode of (4) in 301, by taking Fig. 8 (a) as an example, if L=4, Le=2, the expected SSB sent in base station is SSB1 and SSB3, that
, it does not include the alternative position of SSB0 and SSB2 that any one SSB alternate location, which is the alternate location of any one SSB1 and SSB3,
It sets, that is, has 10 alternate locations that cannot map PDSCH.In another example according to the mode of (6) in step 301, by taking Fig. 8 (b) as an example,
If L=4, Le=2, the expected SSB sent in base station is SSB1 and SSB3, since all SSB alternate locations are the two SSB
Alternate location, therefore this 20 alternate locations cannot all map PDSCH.In step 301 in the mode Yu step 301 of (5) (6)
Mode similarly.
(e) when user assumes that base station sends PDSCH, resource if it is PDSCH distribution and SSB specific alternative
The resource set has overlapping, then PDSCH cannot be mapped to the specific alternative position SSB.It also, is PDSCH distribution
Resource cannot have overlapping with the resource of other positions SSB.
The specific alternative position SSB can be first group of position SSB in predefined pattern, for example, in a SF
First half SF and/or later half SF one group SSB of the starting point as starting point.As shown in Fig. 8 (a), in the 5ms in SMTC window, root
According to L=4,5 groups of SSB alternate locations are shared, each group of SSB includes 4 SSB.Assuming that the starting point of SMTC window is subframe 13, i.e. SMTC
Window is 13~17ms.So, first group of SSB that the starting point that the specific alternative position SSB is the later half SF in a SF starts, i.e.,
15ms start (0~9ms is a SF, and 10~19 be second SF, wherein 10~14 be the first half SF in second SF, 15~
19 be later half SF) one group of SSB, i.e., the 3rd group of SSB in SMTC window.The 1st, 2,4,5 group of SSB in SMTC window is that other SSB are alternative
Position.Preferably, if base station indicates which SSB in one group of SSB of expected transmission by system information, by with
These SSB that instruction in one group of SSB that upper method determines is sent are specific SSB alternate location.
(f) user assumes any one SSB that cannot be mapped in SMTC window or SSB transmission window when base station sends PDCCH
Alternate location.User equipment determines the resource information for the SSB for including in the time slot where PDSCH according to the PDCCH that base station is sent.
The PDCCH can mode according to (a) or (b) determine.
Preferably, in above method, the resource that PDSCH cannot map is using RB as granularity, i.e. PDSCH cannot be mapped to
On RB where the SSB resource of OFDM symbol comprising SSB resource.
The resource information of the instruction SSB, can simply be designated as on the alternative position SSB in the time slot, be
It is no to need to avoid SSB.The specific symbol of SSB and frequency domain resource information, be that standard is predefined or PBCH in broadcast,
Perhaps the configuration of indicated in system information or RRC signaling.
For the periodical or semi-static signal sent in SMTC window or SSB transmission window, such as CSI measurement
CSI-RS, or it is used for the CSI-RS of wave beam management (beam management), if with the SSB of transmission in time and frequency domain
Have conflict in resource, then abandon sending described periodical or semi-static signal, or can mode as described above determine
There is the resource of conflict, and only abandons sending described periodical or semi-static signal in the resource for have conflict and not conflict
Normal sending cycle signal in resource.If the wave for not conflicting on time or frequency domain resource with the SSB of transmission, but sending
Shu Fangxiang has conflict, then abandons sending the period or semi-static signal, or the direction of the SSB according to transmission, described in transmission
Period or semi-static signal.
In various cyclical signals (not including SSB), it to be used for wave beam failure detection (Beam-Failure-
Detection-RS it) or for being determined in radio link quality measurement (radio link quality measurement) waits
The reference signal of wave beam (Beam-Failure-Detection-RS) is selected, or detects (radio for radio link quality
Link monitoring) reference signal, or for the reference signal of RRM measurement, influence for whole system performance,
It is bigger than the influence of other cyclical signals.In order to guarantee the transmission of these special cyclical signals as far as possible, can support with
The transmission of the similar alternate locations multiple in predefined window of SSB.For example, being these special cyclical signals, also configure
One transmission window determines using time slot as granularity and is sending the alternate location in window.In another example if these special periodicity
Signal falls into SMTC window or sends in the window of SSB, and the cyclical signal can move together with the identical SSB of beam direction with sending
It is dynamic.Transmission beam direction is identical, i.e., meets the number and the volume for the SSB to be sent of the SSB of QCL relationship with the cyclical signal
It is number identical.For example, a CSI-RS A for RLM is configured to using 40ms as the period, in first time slot of every 40ms
1st, 2 symbol is sent, and corresponding SSB0, another CSI-RS B is configured to using 40ms as the period, in the 4th of every 40ms
The 8th, 9 symbol in gap is sent, corresponding SSB7.As shown in Fig. 9 (a), it is assumed that a SSB can occupy 7 of half-slot
Symbol, wherein 4 symbols are PSS/SSS/PBCH, remaining 3 symbols can send filling bit.So, if SSB0 exists
First alternate location in SMTC window can not be sent, and second in SMTC window alternate location can be sent, then CSI-
RS A can also be sent together with SSB0.Correspondingly, being connect if supporting that this kind of special CSI-RS is mobile with SSB
When receiving PDSCH, it is also desirable to which user equipment determines whether to be mapped to PDSCH in these resources.It can use and above-mentioned (a)
The identical method of~(d), the resource for only needing to avoid increase the resource of CSI-RS on the basis of SSB.
As previously mentioned, can determine random access after the temporal information of cell where the SSB that user equipment acquisition detects
The resource of process.In the prior art, UE in authorized spectrum band according to one or more SSB for receiving, according to receiving
PRACH resource allocation information, such as the resource of system information or dedicated RRC signaling instruction PRACH, and according to predetermined
The SSB of justice and the correlation rule of PRACH opportunity (PRACH occasion), determine respective PRACH corresponding to each SSB
The time of occasion and/or frequency domain and/or code source.For a PRACH occasion, N number of SSB can be corresponded to,
N can be the positive number greater than 1, or the positive number less than 1.In unauthorized frequency range, if in each SMTC, it is each
It is uncertain that whether a SSB, which sends and send in which position,.In order to avoid the uncertainty of SSB is true to PRACH resource
Fixed influence can determine the SSB for determining PRACH resource according to predefined rule.For example, being sent according to base station is expected
The period of SSB, the expected SSB several L sent in base station in the position of SSB and one group of SSBe(for example, according in RMSI
Ssb-PeriodicityServingCell, ssb-PositionsInBurst parameter determine) and PRACH configuration, determine
The position of the corresponding PRACH occasion of each SSB, without consider these SSB whether since the influence of LBT is not sent, or
Whether person is moved in time, i.e., is not determined according to the practical transmission situation of these SSB.It can be according to the prior art
The method of determination of the PRACH occasion of middle authorized spectrum band, for example, 8.1 method described in TS 38.213.Alternatively, according to
In the period of the expected SSB sent in base station, first group of SSB alternate location in the window of SSB is sent, the expected hair in base station in one group of SSB
The several L of SSB senteAnd the number of each SSB, determine the position of the corresponding PRACH occasion of each SSB.It base station can
To notify information above by system information.For example, base station notifies the expected SSB period in SIB1, it is contemplated that one group of SSB packet
Containing which SSB, the number and SSB alternate location of SSB is numbered.So, UE can determine first group in the window for sending SSB
SSB alternate location, it is contemplated that the SSB period and expected one group of SSB include which SSB, so that it is determined that with these expected from
PRACH occasion corresponding to SSB.For the method for (2) or (5) in step 301, SSB number i, j satisfactionSSBiAnd SSBjCorresponding identical PRACH resource.For example, L=8, Le=2,
The instruction expected SSB sent in base station is SSB0 and SSB1.In first SMTC, base station has sent SSB5 and SSB6, second
In a SMTC, base station has sent SSB0 and SSB1.Wherein SSB5 and SSB1 corresponds to identical PRACH resource, SSB0 and SSB6
Correspond to identical PRACH resource.
Another implementation, according to the period of the expected SSB sent in base station, the expected SSB sent in base station in one group of SSB
Number LeAnd base station determines the corresponding PRACH of each SSB according to the position of the practical SSB sent of LBT result
The position of occasion.
UE is before sending PRACH, not only it needs to be determined that PRACH occasion, it is also necessary to determine effective PRACH
Occasion can be used for the transmission of PRACH.If PRACH occasion belongs to uplink symbol region, for example, being believed by system
The breath uplink symbol that perhaps RRC signaling configures or the uplink symbol region indicated by PDCCH, then PRACH
Occasion is effective.Alternatively, if being not present more more forwardly of than PRACH occasion any one in PRACH time slot
A SSB alternate location, and between this PRACH occasion and previous downlink symbol or previous SSB alternate location
Between at least there is Ngap symbol, then PRACH occasion is effective.The SSB alternate location can be according to L
Determining, alternatively, the SSB alternate location can be according to LeDetermining.For example, according to (1) (4) (7) side in step 301
Method, the SSB alternate location can be according to LeIt determines, i.e. the expected SSB sent in the base station of base station instruction is in one group of SSB
Which SSB determines the alternate location of these SSB.For example, the window for sending SSB is 5~9ms, and as shown in Fig. 8 (a), L
=4, Le=2, the expected SSB sent in base station is SSB1 and SSB3, has 5 groups of SSB alternate locations in the window for sending SSB, often
Group SSB alternate location includes the alternate location of SSB1 and SSB3.If PRACH occasion is located at last 2 symbols of 7ms
Number, although base station only has sent one group of SSB in the time slot of 6ms, without sending any SSB in 7ms, due to 7ms
It is middle that there are the alternate location of SSB1 and SSB3, the two SSB alternate locations are located at before PRACH occasion, therefore this
PRACH occasion is invalid.In another example according to the method for (2) (3) (5) (6) in step 301, the alternative position SSB
It sets according to L and determines, that is, include L SSB alternate location in any group of SSB sent in SSB window, the L with instructioneInformation
It is unrelated.Because in these methods, oh any one of L SSB alternate location is likely to by L in one group of SSBeA SSB
In a SSB occupy.It therefore, can only be by all L SSB alternate locations all as may will affect PRACH occasion's
Alternate location.
Figure 13 is please referred to, base station equipment of the present disclosure for synchronization signal to be sent includes:
LBT operation module is first listened in predefined time window and sends out LBT operation afterwards.
It sends SSB module and sends SSB in the time window if LBT is operated successfully, the SSB includes synchronization signal
The SS or SSB includes SS and Physical Broadcast Channel PBCH.
LBT operation module, the course of work for sending SSB module correspond respectively to the step of present disclosure method for transmitting synchronizing signal
Rapid 101,102, details are not described herein again.
Figure 14 is please referred to, present disclosure includes: for synchronizing received user equipment
Receiving module, for receiving SSB in the time window, the SSB includes synchronization signal SS or the SSB packet
Include SS and Physical Broadcast Channel PBCH.
Measurement module, for carrying out channel measurement and/or cell detection based on the SSB received.
Receiving module, measurement module the course of work correspond respectively to the step 201 of present disclosure synchronous signal receiver method,
202, details are not described herein again.
In conjunction with can be seen that compared with prior art to the detailed description of present disclosure above, present disclosure at least has following
Beneficial technical effect:
First, implement the time of LBT by relaxing base station, i.e. LBT is implemented in permission base station in predefined time window, and
SSB is sent after LBT success, the efficiency of data transmission is significantly improved, improves the performance of cell measurement.
Second, a variety of modes for sending SSB in predefined time window are provided, allow the time for sending SSB clever
Configuration living increases the probability that user equipment is properly received SSB so as to send SSB after the time that any LBT is completed,
Further improve the access performance of system；Meanwhile provided scheme
Third, setting SSB numbers the corresponding relationship with time-domain position in the mode for sending SSB, makes user equipment can root
Merge SSB testing result according to corresponding relationship, improves received efficiency.
4th, provided synchronization signal is sent and detection scheme process is simple, without complicated signaling transmittance process, drop
The low implementation complexity of sending device and receiving device.
5th, SSB resource location information is transmitted to user equipment from base station or standard provides SSB resource location information,
So that user equipment can be avoided according to SSB resource location to received in predefined time window other downlink signals or downlink letter
It is impacted when road, improves the efficiency for receiving data.
Those skilled in the art of the present technique are appreciated that present disclosure includes being related to for executing in operation described in present disclosure
One or more equipment.These equipment can specially design and manufacture for required purpose, or also may include general
Known device in computer.These equipment have the computer program being stored in it, these computer programs are selectively
Activation or reconstruct.Such computer program can be stored in equipment (for example, computer) readable medium or be stored in
It e-command and is coupled in any kind of medium of bus respectively suitable for storage, the computer-readable medium includes but not
Be limited to any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read-Only Memory, only
Read memory), RAM (Random AcceSS Memory, immediately memory), EPROM (EraSable Programmable
Read-Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically EraSable
Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or light card
Piece.It is, readable medium includes by equipment (for example, computer) with any Jie for the form storage or transmission information that can be read
Matter.
Those skilled in the art of the present technique be appreciated that can be realized with computer program instructions these structure charts and/or
The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology neck
Field technique personnel be appreciated that these computer program instructions can be supplied to general purpose computer, special purpose computer or other
The processor of programmable data processing method is realized, to pass through the processing of computer or other programmable data processing methods
The scheme specified in frame or multiple frames of the device to execute structure chart and/or block diagram disclosed in present disclosure and/or flow graph.
Those skilled in the art of the present technique have been appreciated that in present disclosure the various operations crossed by discussion, method, in process
Steps, measures, and schemes can be replaced, changed, combined or be deleted.Further, each with what is crossed by discussion in present disclosure
Kind of operation, method, other steps, measures, and schemes in process may also be alternated, changed, rearranged, decomposed, combined or deleted.
Further, in the prior art to have and the step in various operations, method disclosed in present disclosure, process, measure, scheme
It may also be alternated, changed, rearranged, decomposed, combined or deleted.
The above is only some embodiments of present disclosure, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from present disclosure principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of present disclosure.
Claims (15)
1. a kind of method for transmitting synchronizing signal, it is characterised in that: the described method comprises the following steps:
It is first listened in predefined time window and sends out LBT operation afterwards；
If LBT is operated successfully, SSB is sent in the time window；
The SSB includes synchronization signal SS, or
The SSB includes SS and Physical Broadcast Channel PBCH.
2. method for transmitting synchronizing signal as described in claim 1, it is characterised in that:
The predefined time window is the time window that synchronization signal measurement definition configuration window SMTC or base station send SSB.
3. method for transmitting synchronizing signal as described in claim 1, it is characterised in that:
It include several alternate locations in a time window in time domain；
It is described to send SSB in the time window, comprising: time domain continuously sends a SSB group in a time window,
Wherein, corresponding in an alternate location to send a SSB.
4. method for transmitting synchronizing signal as described in claim 1, it is characterised in that:
It include several alternate location groups in a time window in time domain, each alternate location group includes that several are alternative
Position；
It is described to send SSB in the time window, comprising: time domain continuously sends a SSB group in an alternate location group,
Wherein, corresponding in an alternate location in the alternate location group to send a SSB.
5. method for transmitting synchronizing signal as claimed in claim 4, it is characterised in that:
Several alternate location groups for including in one time window are not overlapped mutually, every in addition to the last one alternate location group
A alternate location group includes L alternate location, the last one alternate location group includes that the number of alternate location is not more than L, L mono-
The SSB number that a complete SSB group is included；
The time domain continuously sends a SSB group in an alternate location group, comprising: time domain is continuously an alternative position
Setting and sending one in group includes LdThe SSB group of a SSB, Ld≤L。
6. method for transmitting synchronizing signal as claimed in claim 4, it is characterised in that:
Several alternate location groups for including in one time window partly overlap, and each alternate location group includes L alternative
Position, the SSB number that L includes by a complete SSB group；
The time domain continuously sends a SSB group in an alternate location group, comprising: time domain is continuously an alternative position
Setting and sending one in group includes LdThe SSB group of a SSB, Ld≤L。
7. method for transmitting synchronizing signal as described in claim 1, it is characterised in that:
It include several alternate location groups in a time window in time domain, which is not overlapped mutually,
Each alternate location group includes L alternate location in addition to the last one alternate location group, and L alternate location successively respectively corresponds
SSB number 0,1 ..., L-1, the last one alternate location group includes that the number of alternate location is not more than L, the last one is alternative
Alternate location in set of locations successively respectively correspond SSB number 0,1 ..., L include by a complete SSB group SSB
Number；
It is described to send SSB in the time window, comprising: since any one alternate location in the time window, time domain
Continuously send a SSB group, wherein corresponding in an alternate location to send one with SSB corresponding with the alternate location
The SSB of number.
8. method for transmitting synchronizing signal as described in claim 1, it is characterised in that:
At least one following information of demodulated reference signal DMRS carrying of the PBCH or PBCH: described in determining
The information of the number of SSB, the information for determining the expected SSB sent in base station, for system frame number where determining the SSB
Information, the information for determining the subframe number where the SSB, the letter for determining the time-gap number where the SSB
Breath.
9. method for transmitting synchronizing signal as described in claim 1, it is characterised in that:
If the LBT is operated successfully, SSB is sent in the time window, comprising: if LBT is operated successfully, in the time window
SSB and corresponding channel state information reference signals CSI-RS is sent, or sends SSB and corresponding system in the time window
Information RMSI；
The CSI-RS can be used at least one of the following: radio link quality measures RRM, radio link quality monitors RLM
With wave beam management；
At least one of following information is carried in the RMSI: for determining the information of the number of the SSB, for determining that base station is pre-
The information for the SSB that phase sends, for the information of system frame number where determining the SSB, for determining the son where the SSB
The information of frame number, the information for determining the time-gap number where the SSB.
10. a kind of synchronous signal receiver method, it is characterised in that: the described method comprises the following steps:
SSB is received in predefined time window, the SSB includes synchronization signal SS or the SSB includes SS and physical broadcast
Channel PBCH；
Channel measurement and/or cell detection are carried out based on the SSB received.
11. synchronous signal receiver method as claimed in claim 10, it is characterised in that:
The predefined time window is the time window that synchronization signal measures timing configured window SMTC or base station sends SSB.
12. synchronous signal receiver method as claimed in claim 10, it is characterised in that:
SSB is received in the predefined time window, comprising: successively receives several SSB in several time windows respectively；
In time window after reception SSB, comprising: determine and be located in time windows and there is the SSB of identical number to meet standard
QCL relationship is matched, and/or,
Determine that the difference for being located at the SSB number in time windows and having is the integer of the expected SSB several Le sent in base station
SSB again meets quasi- matching QCL relationship.
13. synchronous signal receiver method as claimed in claim 10, it is characterised in that: the method also includes:
By predefined SSB resource, the public Physical Downlink Control Channel of cell, the public Physical Downlink Control Channel of user group,
Any mode in the physical downlink control channel PDCCH of Physical Downlink Shared Channel PDSCH is dispatched, the time window is obtained
Interior SSB resource information；
The SSB resource location is avoided according to the SSB resource information, to receive the downlink letter in the time window in addition to SSB
Number or down physical channel.
14. synchronous signal receiver method as claimed in claim 10, it is characterised in that: received in the time window executing
While SSB, the method also includes:
SSB group of the SSB group indicated according to predefined SSB pattern and base station in the predefined SSB pattern
Position determines the time-gap number where SSB or the subframe number at place；Or
The position of SSB of the SSB indicated according to predefined SSB pattern and base station in the predefined SSB pattern
It sets, determines the time-gap number where SSB or the subframe number at place.
15. synchronous signal receiver method as claimed in claim 10, it is characterised in that:
According to the expected SSB sent in base station in the time window, the position on each SSB corresponding random access channel opportunity is determined
It sets, whether the uplink symbol of high-level signaling configuration is located at according to the random access channel opportunity and/or the random access is believed
Whether road opportunity is located at the validity for judging the random access channel opportunity later of the alternate location of SSB in the time window.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602794A (en) * | 2019-09-25 | 2019-12-20 | 展讯半导体(南京)有限公司 | Resource conflict processing method and device, storage medium, terminal and base station |
| WO2020164594A1 (en) * | 2019-02-15 | 2020-08-20 | 维沃移动通信有限公司 | Measurement processing method, parameter configuration method, terminal, and network device |
| WO2021051328A1 (en) * | 2019-09-18 | 2021-03-25 | Oppo广东移动通信有限公司 | Information sending method and apparatus, information receiving method and apparatus, and devices and storage medium |
| WO2021051306A1 (en) * | 2019-09-18 | 2021-03-25 | Oppo广东移动通信有限公司 | Synchronization signal block transmission method, terminal device, and network device |
| WO2021062576A1 (en) * | 2019-09-30 | 2021-04-08 | 富士通株式会社 | Random access method and apparatus, and communications system |
| WO2021062687A1 (en) * | 2019-09-30 | 2021-04-08 | 华为技术有限公司 | Communication method and device |
| CN112888066A (en) * | 2019-11-29 | 2021-06-01 | 中国移动通信有限公司研究院 | PDCCH sending method, receiving method, device and node equipment |
| WO2021120009A1 (en) * | 2019-12-17 | 2021-06-24 | Oppo广东移动通信有限公司 | Signal detection method, signal transmission method, terminal device, and network device |
| WO2021159434A1 (en) * | 2020-02-14 | 2021-08-19 | Qualcomm Incorporated | Synchronization signal block location for frame based equipment mode in cellular communications |
| WO2021159350A1 (en) * | 2020-02-12 | 2021-08-19 | Apple Inc. | Mechanism of measurement sharing and restriction for csi-rs and ssb based ue activities in nr |
| WO2021160166A1 (en) * | 2020-02-10 | 2021-08-19 | 维沃移动通信有限公司 | Measurement configuration method and device for ssb |
| WO2021174508A1 (en) * | 2020-03-05 | 2021-09-10 | Oppo广东移动通信有限公司 | Monitoring paging method, paging method, terminal device and network device |
| WO2021258776A1 (en) * | 2020-06-24 | 2021-12-30 | 华为技术有限公司 | Communication method and communication apparatus |
| CN113873568A (en) * | 2020-06-30 | 2021-12-31 | 维沃移动通信有限公司 | Transmission processing method, device and terminal |
| WO2022073200A1 (en) * | 2020-10-09 | 2022-04-14 | Apple Inc. | Synchronization signal block reception in wireless communications |
| WO2022073203A1 (en) * | 2020-10-09 | 2022-04-14 | Apple Inc. | Synchronization signal block transmission in wireless communications |
| WO2023035131A1 (en) * | 2021-09-08 | 2023-03-16 | Qualcomm Incorporated | Synchronization signal blocks from non-serving cells |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103931250A (en) * | 2012-10-29 | 2014-07-16 | 华为技术有限公司 | Method for determining resources, base station and user equipment |
| CN104956743A (en) * | 2013-01-31 | 2015-09-30 | Lg电子株式会社 | Method for and apparatus for performing synchronization in wireless communication system |
| US20150373668A1 (en) * | 2012-09-16 | 2015-12-24 | Lg Electronics Inc. | Method for receiving or transmitting broadcast signal in wireless communication system and apparatus therefor |
| CN106031269A (en) * | 2014-09-25 | 2016-10-12 | 华为技术有限公司 | Signal sending method, signal receiving method and relevant device therefor |
| WO2016186406A1 (en) * | 2015-05-16 | 2016-11-24 | 주식회사 윌러스표준기술연구소 | Method, device, and system for signal transmission in unlicensed band |
| US20170019909A1 (en) * | 2015-07-16 | 2017-01-19 | Samsung Electronics Co., Ltd | Method and apparatus for adaptive control of contention window in laa |
| WO2017026985A1 (en) * | 2015-08-13 | 2017-02-16 | Intel IP Corporation | Discovery reference signal transmission for lte in unlicensed band |
| US20170078062A1 (en) * | 2014-04-09 | 2017-03-16 | Lg Electronics Inc. | Method for tranceiving signal in wireless communication system and apparatus therefor |
| US20170086176A1 (en) * | 2014-05-16 | 2017-03-23 | Lg Electronics Inc. | Method and apparatus for transmitting and receiving signal by device-to-device terminal in wireless communication system |
| CN106900175A (en) * | 2015-09-25 | 2017-06-27 | 华为技术有限公司 | A kind of method of sending and receiving of user equipment, base station and data channel |
| US20170251498A1 (en) * | 2014-09-26 | 2017-08-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission Confirmation Signal on LBT Carrier |
| US20170288743A1 (en) * | 2016-03-31 | 2017-10-05 | Samsung Electronics Co., Ltd | Method and apparatus for transmitting and receiving reference signals in wireless communication |
| US20170367069A1 (en) * | 2016-06-21 | 2017-12-21 | Samsung Electronics Co., Ltd. | System and method of paging in next generation wireless communication system |
-
2019
- 2019-01-31 CN CN202410667090.3A patent/CN118764940A/en active Pending
- 2019-01-31 CN CN201910101317.7A patent/CN110167134B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150373668A1 (en) * | 2012-09-16 | 2015-12-24 | Lg Electronics Inc. | Method for receiving or transmitting broadcast signal in wireless communication system and apparatus therefor |
| CN103931250A (en) * | 2012-10-29 | 2014-07-16 | 华为技术有限公司 | Method for determining resources, base station and user equipment |
| CN104956743A (en) * | 2013-01-31 | 2015-09-30 | Lg电子株式会社 | Method for and apparatus for performing synchronization in wireless communication system |
| US20170078062A1 (en) * | 2014-04-09 | 2017-03-16 | Lg Electronics Inc. | Method for tranceiving signal in wireless communication system and apparatus therefor |
| US20170086176A1 (en) * | 2014-05-16 | 2017-03-23 | Lg Electronics Inc. | Method and apparatus for transmitting and receiving signal by device-to-device terminal in wireless communication system |
| CN106031269A (en) * | 2014-09-25 | 2016-10-12 | 华为技术有限公司 | Signal sending method, signal receiving method and relevant device therefor |
| US20170251498A1 (en) * | 2014-09-26 | 2017-08-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission Confirmation Signal on LBT Carrier |
| WO2016186406A1 (en) * | 2015-05-16 | 2016-11-24 | 주식회사 윌러스표준기술연구소 | Method, device, and system for signal transmission in unlicensed band |
| US20170019909A1 (en) * | 2015-07-16 | 2017-01-19 | Samsung Electronics Co., Ltd | Method and apparatus for adaptive control of contention window in laa |
| WO2017026985A1 (en) * | 2015-08-13 | 2017-02-16 | Intel IP Corporation | Discovery reference signal transmission for lte in unlicensed band |
| CN106900175A (en) * | 2015-09-25 | 2017-06-27 | 华为技术有限公司 | A kind of method of sending and receiving of user equipment, base station and data channel |
| US20170288743A1 (en) * | 2016-03-31 | 2017-10-05 | Samsung Electronics Co., Ltd | Method and apparatus for transmitting and receiving reference signals in wireless communication |
| US20170367069A1 (en) * | 2016-06-21 | 2017-12-21 | Samsung Electronics Co., Ltd. | System and method of paging in next generation wireless communication system |
Non-Patent Citations (7)
| Title |
|---|
| NTT DOCOMO, INC.: "\"R1-1800649_Remaining issues on NR-SS_final\"", 3GPP TSG_RAN\\WG1_RL1, pages 1 - 4 * |
| NTT DOCOMO, INC.: "R1-154403 "Views on DL LBT mechanism and contention window size adaptation"", 3GPP TSG_RAN\\WG1_RL1, no. 1, 15 August 2015 (2015-08-15) * |
| NTT DOCOMO, INC: "\"R1-1800655_Remaining issues on measurement for mobility management_final\"", 3GPP TSG_RAN\\WG1_RL1 * |
| SAMSUNG: "\"R1-1720315_r2\"", 3GPP TSG_RAN\\WG1_RL1 * |
| SAMSUNG: "R1-1710630 "Remaining minimum system information delivery"", 3GPP TSG_RAN\\WG1_RL1, no. 1, 16 June 2017 (2017-06-16) * |
| SPREADTRUM COMMUNICATIONS: "\"R1-1719689_Discussion on the association between the SMTC and the measurement object_final\"", 3GPP TSG_RAN\\WG1_RL1 * |
| VIVO: "R2-1708420 \"SS block and CSI-RS based measurement configuration in RRC_CONNECTED state\"", 3GPP TSG_RAN\\WG2_RL2, no. 2 * |
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