CN108366421A - Equipment cut-in method in wireless communication system and terminal installation, access point apparatus - Google Patents
Equipment cut-in method in wireless communication system and terminal installation, access point apparatus Download PDFInfo
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- CN108366421A CN108366421A CN201810135321.0A CN201810135321A CN108366421A CN 108366421 A CN108366421 A CN 108366421A CN 201810135321 A CN201810135321 A CN 201810135321A CN 108366421 A CN108366421 A CN 108366421A
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- random access
- time slot
- radio frames
- terminal installation
- access point
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The present invention provides in a kind of wireless communication system equipment cut-in method and terminal installation, access point apparatus, this method include：The distributing slot resources information that wireless access point is sent is received, distributing slot resources information includes the location information of initial time and wireless access point of the random access time slot resource in current radio frames；The estimated value Ta of the upstream time lead of terminal installation is obtained according to the location information of wireless access point and terminal installationCalc, TaCalcThe lead that uplink random accesses initial time of the time of signal relative to random access time slot resource in current radio frames is sent for terminal installation；According to TaCalcRandom access parameter is determined with initial time of the random access time slot resource in current radio frames, and sending uplink random according to random access parameter accesses signal.The present invention can still ensure the success rate of equipment access after reducing random access time slot resource size, avoid, due to retaining the wasting of resources caused by larger random access time slot, promoting wireless resource utility efficiency.
Description
Technical field
The present invention relates in wireless communication technology field more particularly to a kind of wireless communication system equipment cut-in method and
Terminal installation, access point apparatus.
Background technology
The fast development of wireless communication technique makes the development of mobile Internet reach unprecedented height.It pursues high
The wireless resource utility efficiency technology of effect becomes wireless communication technique development to meet the rate constantly to increase severely and capacity requirement
Direction.So promoting the utilization rate problem of radio resource, become the technical issues of urgent need solves.
The wireless communication system of mainstream at present, including LTE, WIFI etc., all use OFDM technology, 64QAM or
The advanced technologies such as 256QAM high order modulation techniques improve the service efficiency of radio resource to the maximum extent.But current master
It flows in wireless communication system, there is also the factors that some restrict wireless resource utility efficiency, such as：In order to avoid intersymbol interference and
Inter-carrier interference needs to increase a cyclic prefix protection interval between each OFDM symbol；For tdd communication systems,
When descending time slot is switched to ascending time slot, reserved certain protection interval is needed, is used for wireless access point from emitting shape
State is switched to reception state, and prevents downlink signal from generating interference to uplink receiving；In order to ensure the contention access of terminal, need
It reserves a competition random access time slot and initiates random access to terminal, and cover the difference according to range, need to reserve
The random access time slot etc. of different length, these factors can all reduce the utilization rate of radio resource.
It is a kind of effective hand by reducing wireless time-domain resource expense in the existing method for improving wireless resource utility efficiency
Section, this method can promote the utilization rate of radio resource, reduce the waste of radio resource.With the propulsion of application, when reducing wireless
Domain resource overhead promotes radio resource utilization rate, has mainly derived following a few class the relevant technologies：
The first kind：Protection interval method (covering grade division) is configured according to coverage area；
Second class：Reduce protection interval (channel quality division) according to channel condition；
Third class：Protection interval (mark space elimination) is eliminated using modulation and demodulation algorithm.
In promoting wireless resource utility efficiency technology evolution, although being drawn by covering grade partitioning, channel quality
Point-score or more advanced intersymbol protection interval technology for eliminating, can bring the promotion of radio resource utilization rate.However,
In practical application, in order to ensure that terminal can successfully complete competition random access procedure, the random of reserved certain length is needed to connect
Input time slot needs the random access time slot of reserved different length under different coverage areas, under a wide range of covering, it is necessary to retain ratio
Larger random access time slot, and these random access time slots cannot be used for the data transmission of regular traffic, to largely
On reduce the utilization ratio of radio resource.
Invention content
In view of the above problems, it is proposed that the present invention overcoming the above problem in order to provide one kind or solves at least partly
State the equipment cut-in method and terminal installation, access point apparatus in the wireless communication system of problem.
The first aspect of the present invention provides the equipment cut-in method in a kind of wireless communication system, including：
The distributing slot resources information that wireless access point is sent is received, the distributing slot resources information includes random access
The location information of initial time and the wireless access point of the time interval resource in current radio frames；
The terminal installation is obtained according to the location information of the location information of the wireless access point and present terminal device
Upstream time lead estimated value TaCalc, the TaCalcFor the terminal installation send uplink random access signal when
Between initial time relative to the random access time slot resource in current radio frames lead；
According to the TaCalcIt is connect at random with initial time determination of the random access time slot resource in current radio frames
Enter parameter, and the uplink random is sent according to the random access parameter and accesses signal.
Optionally, the distributing slot resources information further includes the worst error of the upstream time lead of terminal installation
TaMaxErr；
Correspondingly, described according to the TaCalcWhen with starting of the random access time slot resource in current radio frames
Between determine random access parameter, specifically include：
Using the TaMaxErrTo the TaCalcIt is modified, obtains actual uplink Timing Advance TaInit；
According to the TaInitIt is connect at random with initial time determination of the random access time slot resource in current radio frames
Enter parameter.
Optionally, described to use the TaMaxErrTo the TaCalcIt is modified, including：
According to the TaMaxErrUsing the first default correction model to the TaCalcIt is modified, described first corrects mould
Type is：
TaInit=Max (TaCalc-TaMaxErr,0)。
Optionally, the method further includes：
The next radio frames for the current radio frames that wireless access point is sent are received, next radio frames include upper
The correction value Ta of row Timing Advance；
According to the Ta using the second default correction model to the TaInitIt is modified, second correction model is：
TaCur=Max (TaInit+Ta,0)；
Wherein, TaCurFor the desired value of the upstream time lead of terminal installation；
According to the TaCurControl the transmission of upstream data.
Optionally, the distributing slot resources information further includes that random access time slot has mark；
It is described according to the TaCalcWith initial time of the random access time slot resource in current radio frames determine with
Machine access parameter, including：
There is mark according to the random access time slot to judge to whether there is random access time slot resource in current radio frames；
If in current radio frames, there are random access time slot resources, according to the TaCalcWith the random access time slot
Initial time of the resource in current radio frames determines random access parameter.
The second aspect of the present invention provides the equipment cut-in method in another wireless communication system, including：
Obtain the initial time of the location information and random access time slot resource of wireless access point in current radio frames；
When according to the starting in current radio frames of the location information of the wireless access point and random access time slot resource
Between generate distributing slot resources information；
The distributing slot resources information is sent to terminal installation, so that the terminal installation is according to the wireless access
The location information of point and the location information of terminal installation obtain the estimated value of the upstream time lead of the terminal installation
TaCalc；
The terminal installation is received according to the TaCalcWhen with starting of the random access time slot resource in current radio frames
Between send uplink random access signal, and according to the uplink random access signal carry out equipment access.
Optionally, the location information for obtaining wireless access point and random access time slot resource are in current radio frames
Initial time further includes：Obtain the worst error Ta of the upstream time lead of the terminal installationMaxErr；
The location information and random access time slot resource according to the wireless access point rising in current radio frames
Begin time generation distributing slot resources information, including：
According to the location information of the wireless access point, the TaMaxErrAnd random access time slot resource is current wireless
Initial time in frame generates distributing slot resources information, so that the distributing slot resources information is sent to the terminal
After device, the terminal installation uses the TaMaxErrTo the Ta gotCalcIt is modified, when obtaining actual uplink
Between lead TaInit。
Optionally, the terminal installation is received according to the Ta describedCalcWith random access time slot resource currently without
After the uplink random access signal that initial time in line frame is sent, the method further includes：
The receiving time for obtaining the uplink random access signal, upstream time lead is generated according to the receiving time
Correction value Ta；
Next radio frames of the current radio frames are sent to the terminal installation, next radio frames include institute
State Ta, for the terminal installation according to the Ta to the TaInitIt is modified, and according to the TaCurControl upstream data
Transmission.
Optionally, the method further includes：
Configure the state of random access time slot resource in current radio frames；
If the random access time slot resource is in off state, when the random access time slot resource is divided into uplink
Gap resource.
Optionally, the method further includes：
The random access time slot is configured according to the state of the random access time slot resource and there is mark, and will be connect at random
Input time slot is added in the presence of mark in the distributing slot resources information.
The third aspect of the present invention provides a kind of terminal installation, including：
Terminal data receiving module, the distributing slot resources information for receiving wireless access point transmission, the time slot money
Source distribution information includes the position of initial time and the wireless access point of the random access time slot resource in current radio frames
Information；
Acquisition module, for being obtained according to the location information of the wireless access point and the location information of present terminal device
The estimated value Ta of the upstream time lead of the terminal installationCalc, the TaCalcUplink random is sent for the terminal installation
Access the lead of initial time of the time of signal relative to the random access time slot resource in current radio frames；
Terminal data sending module, for according to the TaCalcWith the random access time slot resource in current radio frames
In initial time determine random access parameter, and the uplink random is sent according to the random access parameter and accesses signal.
Optionally, the distributing slot resources information further includes the worst error of the upstream time lead of terminal installation
TaMaxErr；
The terminal data sending module, including：
First amending unit, for using the TaMaxErrTo the TaCalcIt is modified, obtaining the actual uplink time carries
Preceding amount TaInit；
Determination unit, for according to the TaInitWith starting of the random access time slot resource in current radio frames
Time determines random access parameter.
Optionally, the distributing slot resources information further includes that random access time slot has mark；
The terminal data sending module is specifically used for current wireless in the presence of mark judgement according to the random access time slot
It whether there is random access time slot resource in frame；If there are random access time slot resources in current radio frames, according to
TaCalcRandom access parameter is determined with initial time of the random access time slot resource in current radio frames.
The fourth aspect of the present invention provides a kind of access point apparatus, including：
Data obtaining module, the location information and random access time slot resource for obtaining wireless access point are current wireless
Initial time in frame；
Information generating module is used for location information and random access time slot resource according to the wireless access point current
Initial time in radio frames generates distributing slot resources information；
Access point data transmission blocks, for the distributing slot resources information to be sent to terminal installation, for described
Terminal installation obtains the upper of the terminal installation according to the location information of the wireless access point and the location information of terminal installation
The estimated value Ta of row Timing AdvanceCalc；
Access point data reception module, for receiving the terminal installation according to the TaCalcIt is provided with random access time slot
The uplink random that initial time of the source in current radio frames is sent accesses signal, and according to the uplink random access signal into
Row equipment accesses.
Optionally, described information acquisition module is additionally operable to obtain the maximum of the upstream time lead of the terminal installation
Error TaMaxErr；
Described information generation module is specifically used for location information, the Ta according to the wireless access pointMaxErrAnd
Initial time of the random access time slot resource in current radio frames generates distributing slot resources information, so that by the time slot
Resource allocation information is sent to after the terminal installation, and the terminal installation uses the TaMaxErrDescribed in getting
TaCalcIt is modified, obtains actual uplink Timing Advance TaInit。
Optionally, described access point device further includes：
Access Management, for receiving the terminal installation according to the Ta describedCalcIt is provided with random access time slot
After the uplink random access signal that initial time of the source in current radio frames is sent, the uplink random access signal is obtained
Receiving time, according to the receiving time generate upstream time lead correction value Ta；
Described access point data transmission blocks are additionally operable to next radio frames of the current radio frames being sent to the end
End device, next radio frames include the Ta, for the terminal installation according to the Ta to the TaInitIt is repaiied
Just, and according to the TaCurControl the transmission of upstream data.
Optionally, described access point device further includes：
Configuration module, the state for configuring random access time slot resource in current radio frames；If when the random access
Gap resource is in off state, then the random access time slot resource is divided into ascending time slot resource.
Equipment cut-in method in wireless communication system provided in an embodiment of the present invention and terminal installation, access point apparatus
In, terminal installation can determine that the upstream time of terminal installation shifts to an earlier date according to wireless access point location information and terminal positional information
The estimated value Ta of amountCalc, be then based on upstream time lead estimated value shift to an earlier date with the random access time slot resource rise
Begin time transmission uplink random access signal, still ensures that wireless access point can after reducing random access time slot resource size
Received in random access time slot resource uplink random access signal, while ensureing that equipment is successfully accessed rate, avoid by
The wasting of resources caused by retaining larger random access time slot, promotes the utilization rate of radio resource.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, below the special specific implementation mode for lifting the present invention.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the flow chart of the equipment cut-in method in a kind of wireless communication system of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the wireless communication system in the embodiment of the present invention；
Fig. 3 is the flow chart of the equipment cut-in method in another wireless communication system of the embodiment of the present invention；
Fig. 4 is the schematic diagram of conventional random access time slot configuration；
Fig. 5 is that random access time slot configures in the equipment cut-in method in the wireless communication system that the embodiment of the present invention proposes
Schematic diagram one；
Fig. 6 is that random access time shifts to an earlier date in the equipment cut-in method in the wireless communication system that the embodiment of the present invention proposes
The adjustment schematic diagram of amount；
Fig. 7 is that random access time slot configures in the equipment cut-in method in the wireless communication system that the embodiment of the present invention proposes
Schematic diagram two；
Fig. 8 is a kind of structural schematic diagram of terminal installation of the embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of access point apparatus of the embodiment of the present invention.
Specific implementation mode
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
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 terminology), there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.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 by specific definitions, otherwise will not be explained with the meaning of idealization or too formal.
Fig. 1 diagrammatically illustrates the flow of the equipment cut-in method in the wireless communication system of one embodiment of the invention
Figure.This method is executed by terminal installation side.Referring to Fig.1, the equipment cut-in method in the wireless communication system of the embodiment of the present invention
Specifically include following steps：
S11, the distributing slot resources information that wireless access point is sent is received, the distributing slot resources information includes random
The location information of initial time and the wireless access point of the access slot resource in current radio frames.
Fig. 2 is the structural schematic diagram of wireless communication system.Referring to Fig. 2, wireless communication system include wireless access point and
Multiple terminal installations.In the present embodiment, wireless access point by include random access resource information and wireless access point position
The distributing slot resources information of information is sent to terminal installation by broadcast message, and radio resource is carried out in current radio frames
Scheduling.Specifically, wireless resource scheduling, includes the scheduling of broadcast message, the scheduling etc. of each terminal uplink and downlink radio resource.
In the present embodiment, random access resource information is primarily referred to as random access time slot resource in current radio frames
Initial time.In other embodiments, the random access resource information can also include the length information of random access time slot
Deng.
In the present embodiment, the location information of wireless access point can be provided by the locating module in wireless access point, packet
GPS module, Beidou positioning module etc. are included, or can also be a location information of manual configuration.Wireless access point
Location information can be specifically longitude and latitude positional information either co-ordinate position information etc..
S12, the terminal is obtained according to the location information of the wireless access point and the location information of present terminal device
The estimated value Ta of the upstream time lead of deviceCalc, the TaCalcUplink random, which is sent, for the terminal installation accesses signal
Initial time of the time relative to the random access time slot resource in current radio frames lead.
In the present embodiment, terminal installation obtains the location information of oneself, which refers to being carried by terminal positioning module
Location information of confession, including GPS module, Beidou positioning module etc., or can also be the position letter of manual configuration
Breath, the location information of terminal installation can be longitude and latitude positional information or co-ordinate position information etc., the position of terminal installation
Information must be with the location information format match of wireless access point；Then terminal is according to the wireless access point location in broadcast message
The location information of information and terminal itself estimates the distance L of terminal and wireless access point, then estimates one by distance L
The estimated value Ta of upstream time leadCalc, appraising model is as follows：
Wherein, L indicates that the distance of terminal and wireless access point, C indicate the light velocity.
S13, according to the TaCalcWith initial time of the random access time slot resource in current radio frames determine with
Machine access parameter, and the uplink random is sent according to the random access parameter and accesses signal.
Wherein, the random access parameter includes initial time of the random access time slot resource in current radio frames
With the estimated value Ta of the upstream time lead of present terminal deviceCalc。
In the present embodiment, terminal installation carries out equipment access according to the random access parameter, is connect at random completing equipment
After entering, data transmit-receive is carried out according to the scheduling information of wireless access point.It is in terminal and nothing that terminal installation, which completes random access,
Line access point completes the Signalling exchange of random access procedure, and terminal obtains uplink synchronous with wireless access point at this time, and
Wireless access point can carry out uplink and downlink data transmission scheduling to terminal.Terminal installation according to the scheduling information of wireless access point into
Row data transmit-receive is primarily referred to as wireless access point and terminal distribution running time-frequency resource, terminal is given to be provided according to the time-frequency that wireless access point is distributed
Source carries out data transmit-receive.
Equipment cut-in method in wireless communication system provided in an embodiment of the present invention, terminal installation can be according to wirelessly connecing
Enter dot position information and terminal positional information determine terminal installation upstream time lead estimated value TaCalc, it is then based on
The estimated value of upstream time lead shifts to an earlier date sends uplink random access letter with the initial time of the random access time slot resource
Number, still ensure that wireless access point can receive in random access time slot resource after reducing random access time slot resource size
Signal is accessed to uplink random, while ensureing that equipment is successfully accessed rate, avoids leading due to retaining larger random access time slot
The wasting of resources of cause promotes the utilization rate of radio resource.
In another embodiment of the invention, in addition to including random access time slot resource in the distributing slot resources information
Initial time in current radio frames and except the location information of the wireless access point, when further including the uplink of terminal installation
Between lead worst error TaMaxErr。
Correspondingly, described according to the TaCalcWhen with starting of the random access time slot resource in current radio frames
Between determine random access parameter, specifically include：
Using the TaMaxErrTo the TaCalcIt is modified, obtains actual uplink Timing Advance TaInit；
According to the TaInitIt is connect at random with initial time determination of the random access time slot resource in current radio frames
Enter parameter.
In the present embodiment, terminal installation parse wireless access point broadcast message, terminal installation first can and wireless access
Point obtains down-going synchronous, and parses the distributing slot resources information in broadcast message, extracts in distributing slot resources information
Initial time of the random access time slot resource in current radio frames, terminal installation upstream time lead worst error
TaMaxErrWith wireless access point location information.And believe according to the location information of wireless access point and the position of present terminal device
Breath obtains the estimated value Ta of the upstream time lead of the terminal installationCalcLater, using TaMaxErrTo the TaCalcIt carries out
It corrects, to obtain actual uplink Timing Advance TaInit, for subsequently according to the TaInitWith the random access time slot resource
Initial time in current radio frames determines random access parameter, it is ensured that the accurate access of terminal installation ensures equipment access
Success rate.
Wherein, the worst error of the upstream time lead of terminal installation is a nonnegative number, is denoted as TaMaxErr, the error
The upstream time prediction error that is mainly calculated based on distance by terminal installation, user equipment downlink synchronous error, terminal and wireless
The frequency departure etc. of access point causes.Wherein, the upstream time prediction error that terminal is calculated based on distance is most important mistake
Poor source.So in the present embodiment, the computation model of the worst error of the upstream time lead of terminal installation is：TaMaxErr=
TaMaxErr_Calc+TaMaxErr_Other；
Wherein, TaMaxErr_CalcFor terminal based on distance calculate upstream time lead worst error absolute value,
TaMaxErr_OtherFor the worst error absolute value of upstream time lead caused by other factors.Specifically,LMaxErrFor the worst error absolute value of terminal and wireless access point distance, C is the light velocity；Usual feelings
Under condition, after the location information source determination of wireless access point and terminal, LMaxErrValue be also to determine.
The length information and coverage area of random access time slot in the present embodiment are unrelated and terminal initiates random access
The worst error of Timing Advance is related.The determination principle of random access slot length is：In order to ensure the random of terminal installation
Access signal drops into the random access time slot resource of wireless access point receiving terminal, and random access slot length allows for holding
Bear [- TaMaxErr,TaMaxErr] Timing Advance error, the length of random access time slot needs to retain 2 times of TaMaxErrProtection
Interval.
Specifically, described use the TaMaxErrTo the TaCalcIt is modified, is realized especially by following manner：
According to the TaMaxErrUsing the first default correction model to the TaCalcIt is modified, described first corrects mould
Type is：
TaInit=Max (TaCalc-TaMaxErr,0)。
In the present embodiment, random access parameter includes mainly upstream time lead TaInitWith random access time slot resource
Random access time slot location information in initial time in current radio frames.
Wherein, the upstream time lead Ta in random access parameterInitIts determination process is：
The worst error Ta of the upstream time lead for the terminal installation that terminal installation is sent according to wireless access pointMaxErr
The estimation Timing Advance Ta that terminal is come out based on range estimationCalcIt is modified, finally obtains the reality of an actual use
Border upstream time lead TaInit。
In the embodiment of the present invention, signal is accessed sending the uplink random according to the random access parameter, completes to set
After standby access, the method further includes：The next radio frames for the current radio frames that wireless access point is sent are received, it is described
Next radio frames include the correction value Ta of upstream time lead；
According to the Ta using the second default correction model to the TaInitIt is modified, second correction model is：
TaCur=Max (TaInit+Ta,0)；
Wherein, TaCurFor the desired value of the upstream time lead of terminal installation；
According to the TaCurControl the transmission of upstream data.
In the present embodiment, wireless access point random access time slot receive terminal initiation accidental access signal after,
It estimates a new Timing Advance Ta, and this Timing Advance Ta is allocated to terminal；Terminal receives wireless access point
Timing Advance parameter Ta after, regenerate a new Timing Advance parameter TaCur, wherein TaCur=Max (TaInit
+ Ta, 0), terminal is with Ta laterCurThe delivery time that upstream data is controlled for Timing Advance, until wireless access point again
It is configured with a Ta, at this time or uses TaCur=Max (TaInit+ Ta, 0) carry out renewal time lead.
In embodiments of the present invention, the distributing slot resources information further includes that random access time slot has mark, described
Random access time slot in the presence of mark be used to indicate in the radio frames that need to currently dispatch whether remain random access time slot resource.
In the present embodiment, in addition to random access time slot resource is current in the distributing slot resources information that terminal device receives
The worst error Ta of the upstream time lead of initial time, terminal installation in radio framesMaxErrWith the position of wireless access point
Further include that random access time slot has mark other than information.
Further exist, in the present embodiment according to the TaCalcWith the random access time slot resource in current radio frames
In initial time determine random access parameter, realized especially by following steps：
There is mark according to the random access time slot to judge to whether there is random access time slot resource in current radio frames；
If in current radio frames, there are random access time slot resources, according to the TaCalcWith the random access time slot
Initial time of the resource in current radio frames determines random access parameter.
In the present embodiment, terminal installation initiates random access procedure according to random access parameter, and main process is：Terminal
Device judges that current subframe whether there is random access time slot according to random access time slot in the presence of mark first, if there is random
Access slot then initiates random access procedure, does not otherwise initiate random access procedure.
Wherein, the detailed process of random access procedure is：Terminal installation is with Timing Advance parameter TaInitTo adjust uplink
The sending time of accidental access signal, to ensure that terminal accidental access signal can be in random access time slot by wireless access point
Be properly received, realize can still ensure after reducing random access time slot resource size equipment access success rate, avoid by
The wasting of resources caused by retaining larger random access time slot promotes wireless resource utility efficiency.
Fig. 3 diagrammatically illustrates the flow of the equipment cut-in method in the wireless communication system of another embodiment of the present invention
Figure.This method is executed by wireless access point side.With reference to Fig. 3, the equipment access side in the wireless communication system of the embodiment of the present invention
Method specifically includes following steps：
S21, when obtaining the starting in current radio frames of location information and random access time slot resource of wireless access point
Between.
S22, the rising in current radio frames according to the location information and random access time slot resource of the wireless access point
Begin time generation distributing slot resources information.
S23, the distributing slot resources information is sent to terminal installation, so that the terminal installation is according to described wireless
The location information of access point and the location information of terminal installation obtain the estimated value of the upstream time lead of the terminal installation
TaCalc。
In the present embodiment, the distributing slot resources information is sent to terminal dress by wireless access point by broadcast message
It sets.
S24, the terminal installation is received according to the TaCalcWith random access time slot resource rising in current radio frames
The uplink random that time beginning sends accesses signal, and accesses signal according to the uplink random and carry out equipment access.
In equipment cut-in method in wireless communication system proposed by the present invention, wireless access point determines random access time slot
The location information of initial time of the resource in current radio frames, wireless access point, and it is sent to terminal installation so that terminal fills
Set the upstream time that the terminal installation is obtained according to the location information of the wireless access point and the location information of terminal installation
The estimated value Ta of leadCalc；Terminal is according to the TaCalcWhen with starting of the random access time slot resource in current radio frames
Between generate random access parameter, and signal is accessed according to the uplink random that random access parameter is sent；Wireless access point receives institute
Uplink random access signal is stated, and signal is accessed according to the uplink random and carries out equipment access.The present invention connects at random in reduction
Still ensure that wireless access point can receive uplink random access in random access time slot resource after input time slot resource size
Signal avoids, due to retaining the wasting of resources caused by larger random access time slot, carrying while ensureing that equipment is successfully accessed rate
Rise the utilization rate of radio resource.
In the embodiment of the present invention, it is described obtain wireless access point location information and random access time slot resource currently without
Initial time in line frame further includes：Obtain the worst error Ta of the upstream time lead of the terminal installationMaxErr。
Correspondingly, the location information and random access time slot resource according to the wireless access point is in current radio frames
In initial time generate distributing slot resources information, specifically include：
According to the location information of the wireless access point, the TaMaxErrAnd random access time slot resource is current wireless
Initial time in frame generates distributing slot resources information, so that the distributing slot resources information is sent to the terminal
After device, the terminal installation uses the TaMaxErrTo the Ta gotCalcIt is modified, when obtaining actual uplink
Between lead TaInit。
Further, in this embodiment terminal installation specifically then according to TaCalcThe Ta obtained after amendmentInitWith it is random
The uplink random that initial time of the access slot resource in current radio frames is sent accesses signal.
In embodiments of the present invention, the terminal installation is received according to the Ta describedCalcIt is provided with random access time slot
After the uplink random access signal that initial time of the source in current radio frames is sent, the method further includes：
The receiving time for obtaining the uplink random access signal, upstream time lead is generated according to the receiving time
Correction value Ta；
Next radio frames of the current radio frames are sent to the terminal installation, next radio frames include institute
State Ta, for the terminal installation according to the Ta to the TaInitIt is modified, and according to the TaCurControl upstream data
Transmission.
In the present embodiment, wireless access point random access time slot receive terminal initiation accidental access signal after,
It estimates a new Timing Advance Ta, and this Timing Advance Ta is allocated to terminal；Terminal receives wireless access point
Timing Advance parameter Ta after, regenerate a new Timing Advance parameter TaCur, wherein TaCur=Max (TaInit
+ Ta, 0), terminal is with Ta laterCurThe delivery time that upstream data is controlled for Timing Advance, until wireless access point again
It is configured with a Ta, at this time or uses TaCur=Max (TaInit+ Ta, 0) carry out renewal time lead.
In the embodiment of the present invention, the method further includes：Configure the state of random access time slot resource in current radio frames；
If the random access time slot resource is in off state, the random access time slot resource is divided into ascending time slot resource.
Specifically, can be according to the state of random access time slot resource in the default current radio frames of mechanism dynamic configuration.Into
One step, access point apparatus can configure the random access time slot according to the state of the random access time slot resource and there is mark
Know, and random access time slot is added in the presence of mark in the distributing slot resources information.
In the present embodiment, wireless access point dynamically switchs random access time slot resource according to default mechanism, works as radio frames
In be not present random access time slot resource when, wireless access point by random access time slot distribute to terminal carry out upstream data
Transmission.
The equipment in wireless communication system below by a specific embodiment to describe the technology of the present invention proposition connects
Enter the specific implementation mode of method.
In the application scenarios of covering 100km, the schematic diagram of the random access time slot configuration of Fig. 4 routines.
Random access time slot includes three parts content：CP cyclic prefix, random access leader sequence, the protection of GT random access
Interval.
It, must be by using conventional Random Access random access time slot in order to meet the cell coverage area of 100km
It is configured according to Fig. 4, the when a length of 3ms that random access time slot occupies.Wherein CP cyclic prefix occupies 0.68ms, random access guiding
Sequence occupies 1.6ms, and GT occupies 0.72ms.
Traditional random access procedure is that terminal installation obtains down-going synchronous with wireless access point first, is then initiated random
Access procedure, due to uplink and downlink round trip transmission delay, so the time delay that accidental access signal reaches wireless access point is TDelay=
2*100km/C=0.67ms, C are the light velocity.So the CP of random access time slot must assure that more than 0.67ms, and GT also greater than
0.67ms。
In the embodiment of the present invention, it is assumed that the distance of terminal installation computing terminal device and wireless access point
The absolute value of error worst error is LMaxErr=6km, the then worst error that terminal installation calculates Timing Advance areHere C is the light velocity and C=299792.458km.And when caused by other factors
Between lead worst error absolute value TaMaxErr_OtherIt is usually smaller, the error of 0.01ms is reserved here with regard to enough, so
Timing Advance worst error absolute value TaMaxErr=TaMaxErr_Calc+TaMaxErr_Other=0.05ms.In order to ensure terminal installation
It is calculated in error range in Timing Advance, the accidental access signal of terminal installation drops into when being transferred to wireless access point
In random access time slot.The configuration of random access time slot is as shown in figure 5, entire random access slot length in the embodiment of the present invention
For 1ms, wherein CP cyclic prefix is 0.1ms, and random access leader sequence occupies 0.8ms, and GT occupies 0.1ms, and CP is recycled here
It is to guarantee to meet 2 times of Ta that prefix and GT, which are arranged to 0.1ms,MaxErr=0.05ms errors.
The radio frames Fn moment, initial time of the wireless access point by random access time slot resource in current radio frames, i.e.,
The initial position of random access time slot is t, the worst error Ta of the upstream time lead of terminal installationMaxErr(here for
0.5ms), random access time slot, which exists, identifies, in the present embodiment, it is assumed that and random access time slot, which exists, is identified as TRUE, that is,
There are random access time slot, location informations of wireless access point etc. to be sent by broadcast for current radio frames；Terminal carries out small
Area searching is simultaneously and wireless access point obtains down-going synchronous, then parses the broadcast message of wireless access point, generates random access ginseng
Number.Random access parameter includes mainly：Initial time of the random access time slot resource in current radio frames, random access time slot
In the presence of mark and upstream time lead TaInit。
Wherein, there is mark in initial time t and random access time slot of the random access time slot resource in current radio frames
(being identified as TRUE) directly extracts from broadcast.
Terminal evaluation time lead TaCalcCalculating process be, first computing terminal device and wireless access point away from
If the location information of the location information of wireless access point and terminal installation is the same coordinate system, and all it is that space is direct from L
Coordinate system, it is assumed that the location information of line access point is (Xa,Ya,Za), the location information of terminal is (Xt,Yt,Zt), then distance L is counted
Calculating formula is：
If the location information of wireless access point and terminal installation is to be provided in GPS module, Beidou positioning module etc.
Longitude and latitude positional information, it is assumed that the location information of wireless access point be (Lnga,Lata), the location information of terminal is (Lngt,
Latt), then distance L calculation formula are：
radLata=Lata*π/180
radLnga=Lnga*π/180
radLngt=Lngt*π/180
radLatt=Latt*π/180
λ=radLata-radLatt
L=R*B
R=6371000, R are the mean radius of the earth, and unit is rice.
Then the estimated value Ta of upstream time lead is calculated according to the range information estimatedCalc, due to signal
It is round-trip, so the calculation formula of upstream time lead is：
The random access moment should be actually sent as shown in fig. 6, wherein T4 is terminal installation, T7 is that terminal installation connects at random
The start time position of input time slot, T3 are upstream time lead TaCalcAt the time of position.Since various factors influences, cause
Upstream time lead TaCalcThere are error, worst error range [- TaMaxErr,TaMaxErr], so terminal installation is sent at random
Access the moment position may between T2 to T6, if terminal installation send the random access moment position fall T2 and T4 it
Between, then part signal can be fallen before random access time slot when the accidental access signal of terminal installation reaches wireless access point
The position of face time slot, so Ta cannot be used directlyCalcAs Timing Advance, it is necessary to TaCalcIt is modified, ensures TaCalc
The accidental access signal of terminal installation can be allowed to drop into the random access time slot of wireless access point within the scope of worst error.
The Timing Advance actually used after amendment is TaInit=Max (TaCalc-TaMaxErr, 0), thus terminal installation it is practical initiate with
It is T5 at the time of machine accesses.
Terminal installation is according to random access parameter (t, TRUE, TaInit) control the initiation of random access, here due to end
End device detects in current radio frames there are random access time slot, thus terminal installation current radio frames be can initiate with
Machine access.It initiates at the time of random access to be T5=T7-TaInit。
Wireless access point estimates a new Ta value after receiving the accidental access signal of terminal installation, then by this Ta
Value is sent to terminal installation, and terminal installation corrects local Timing Advance using Ta.New Timing Advance is TaCur=Max
(TaInit+ Ta, 0), the Timing Advance that subsequent terminal device sends upstream data is TaCur, until wireless access point is matched again
Set terminal installation update Ta values.
Terminal installation is completed after random access procedure, so that it may to carry out uplink and downlink data transmission.
Exist in the random access time slot that Fm moment wireless access point obtains and be expressed as FALSE, indicates that there is no connect at random
Input time slot, then wireless access point by the resource allocation of random access time slot give user carry out transmitting uplink data.As shown in fig. 7,
It indicates that random access time slot is not present in current radio frames.Do not complete the terminal installation of random access by broadcast find Fm without
Random access time slot is not present in line frame, so terminal installation must carry out waiting until and detect that some radio frames has at this time
Random access time slot just initiates random access.
Know through this embodiment, using the present invention program, Timing Advance is calculated by terminal installation, is effectively subtracted
The small length of random access time slot, while by dynamic switch random access time slot, effectively improving wireless resource utility efficiency.
For embodiment of the method, for simple description, therefore it is all expressed as a series of combination of actions, but this field
Technical staff should know that the embodiment of the present invention is not limited by the described action sequence, because implementing according to the present invention
Example, certain steps can be performed in other orders or simultaneously.Next, those skilled in the art should also know that, specification
Described in embodiment belong to preferred embodiment, necessary to the involved action not necessarily embodiment of the present invention.
Fig. 8 diagrammatically illustrates the structural schematic diagram of the terminal installation of one embodiment of the invention.With reference to Fig. 8, the present invention
The terminal installation of embodiment specifically includes terminal data receiving module 301, acquisition module 302 and terminal data sending module
303, wherein：
Terminal data receiving module 301, the distributing slot resources information for receiving wireless access point transmission, the time slot
Resource allocation information includes the position of initial time and the wireless access point of the random access time slot resource in current radio frames
Confidence ceases；
Acquisition module 302 is used for the location information of the location information and present terminal device according to the wireless access point
Obtain the estimated value Ta of the upstream time lead of the terminal installationCalc, the TaCalcUplink is sent for the terminal installation
The lead of initial time of the time of accidental access signal relative to the random access time slot resource in current radio frames；
Terminal data sending module 303, for according to the TaCalcWith the random access time slot resource current wireless
Initial time in frame determines random access parameter, and sends the uplink random access letter according to the random access parameter
Number.
In embodiments of the present invention, the distributing slot resources information further includes the upstream time lead of terminal installation
Worst error TaMaxErr。
Correspondingly, the terminal data sending module 303, including the first amending unit and determination unit, wherein：
First amending unit, for using the TaMaxErrTo the TaCalcIt is modified, obtaining the actual uplink time carries
Preceding amount TaInit；
Determination unit, for according to the TaInitWith starting of the random access time slot resource in current radio frames
Time determines random access parameter.
In embodiments of the present invention, the distributing slot resources information further includes that random access time slot has mark；
Correspondingly, the terminal data sending module 303, specifically for being sentenced in the presence of mark according to the random access time slot
It whether there is random access time slot resource in settled preceding radio frames；If there are random access time slot resource in current radio frames,
According to the TaCalcRandom access parameter is determined with initial time of the random access time slot resource in current radio frames.
Further, first amending unit is specifically used for according to the TaMaxErrUsing the first default correction model
To the TaCalcIt is modified, first correction model is：
TaInit=Max (TaCalc-TaMaxErr,0)。
Further, the terminal data receiving module 301, be additionally operable to receive wireless access point send it is described currently without
Next radio frames of line frame, next radio frames include the correction value Ta of upstream time lead.
Correspondingly, described device further includes：
Second amending unit uses the second default correction model to the Ta for described according to the TaInitIt is repaiied
Just, second correction model is：
TaCur=Max (TaInit+Ta,0)；
Wherein, TaCurFor the desired value of the upstream time lead of terminal installation；
The terminal data sending module 303, is additionally operable to according to the TaCurControl the transmission of upstream data.
Fig. 9 diagrammatically illustrates the structural schematic diagram of the access point apparatus of one embodiment of the invention.With reference to Fig. 9, this hair
The access point apparatus of bright embodiment specifically includes data obtaining module 401, information generating module 402, access point data and sends mould
Block 403 and access point data reception module 404, wherein：
Data obtaining module 401, the location information and random access time slot resource for obtaining wireless access point are current
Initial time in radio frames；
Information generating module 402, for being existed according to the location information and random access time slot resource of the wireless access point
Initial time in current radio frames generates distributing slot resources information；
Access point data transmission blocks 403, for the distributing slot resources information to be sent to terminal installation, for institute
It states terminal installation and the terminal installation is obtained according to the location information of the wireless access point and the location information of terminal installation
The estimated value Ta of upstream time leadCalc；
Access point data reception module 404, for receiving the terminal installation according to the TaCalcAnd random access time slot
The uplink random that initial time of the resource in current radio frames is sent accesses signal, and accesses signal according to the uplink random
Carry out equipment access.
In the embodiment of the present invention, described information acquisition module 401, the upstream time for being additionally operable to obtain the terminal installation carries
The worst error Ta of preceding amountMaxErr。
Correspondingly, described information generation module 402, it is specifically used for the location information according to the wireless access point, described
TaMaxErrAnd initial time of the random access time slot resource in current radio frames generates distributing slot resources information, so that
After the distributing slot resources information is sent to the terminal installation, the terminal installation uses the TaMaxErrTo obtaining
The Ta arrivedCalcIt is modified, obtains actual uplink Timing Advance TaInit。
In the embodiment of the present invention, described access point device further includes attached Access Management not shown in the figure, described to connect
Enter management module, for receiving the terminal installation according to the Ta describedCalcWith random access time slot resource currently without
After the uplink random access signal that initial time in line frame is sent, when obtaining the reception of the uplink random access signal
Between, the correction value Ta of upstream time lead is generated according to the receiving time.
Correspondingly, described access point data transmission blocks 403, are additionally operable to send out next radio frames of the current radio frames
Be sent to the terminal installation, next radio frames include the Ta, for the terminal installation according to the Ta to described
TaInitIt is modified, and according to the TaCurControl the transmission of upstream data.
In the embodiment of the present invention, described access point device further includes attached configuration module not shown in the figure, the configuration mould
Block, the state for configuring random access time slot resource in current radio frames；If the random access time slot resource is to close shape
The random access time slot resource is then divided into ascending time slot resource by state.
Further, the configuration module, be additionally operable to according to the configuration of the state of the random access time slot resource it is described with
There is mark in machine access slot, and random access time slot is added in the presence of mark in the distributing slot resources information.
In addition, described access point device further includes having scheduler module and wireless frame management module, wherein：Scheduler module, it is main
It is responsible for the scheduling feature of radio resource, includes the scheduling of broadcast, the scheduling etc. of terminal uplink and downlink resource；Radio frames manage mould
Block is responsible for wireless frame structure management function, the main length for including radio frames, and radio frames uplink and downlink timeslot matches, and uplink and downlink is cut
Change including gap length, the position of random access time slot, random access time slot length etc., while also management terminal device it is upper
The worst error parameter of row Timing Advance.
For device embodiments, since it is basically similar to the method embodiment, so fairly simple, the correlation of description
Place illustrates referring to the part of embodiment of the method.
The apparatus embodiments described above are merely exemplary, wherein the unit illustrated as separating component can
It is physically separated with being or may not be, the component shown as unit may or may not be physics list
Member, you can be located at a place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of module achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case of, you can to understand and implement.
Equipment cut-in method in wireless communication system provided in an embodiment of the present invention and terminal installation, access point apparatus
In, terminal installation can determine that the upstream time of terminal installation shifts to an earlier date according to wireless access point location information and terminal positional information
The estimated value Ta of amountCalc, be then based on upstream time lead estimated value shift to an earlier date with the random access time slot resource rise
Begin time transmission uplink random access signal, still ensures that wireless access point can after reducing random access time slot resource size
Received in random access time slot resource uplink random access signal, while ensureing that equipment is successfully accessed rate, avoid by
The wasting of resources caused by retaining larger random access time slot, promotes the utilization rate of radio resource.
In embodiments of the present invention, it should be understood that disclosed device and method, it can be real by another way
It is existing.For example, apparatus embodiments described above are merely indicative, for example, the division of the unit or unit, only
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, equipment or unit
It connects, can be electrical or other forms.
Each functional unit in embodiments of the present invention can be integrated in a processing unit or each unit also may be used
To be independent physical module.If the integrated unit is realized in the form of SFU software functional unit and as independent production
Product are sold or in use, can be stored in a computer read/write memory medium.Based on this understanding, the present invention is implemented
The all or part of the technical solution of example can be expressed in the form of software products, which is stored in one
In a storage medium, including some instructions are used so that a computer equipment, such as can be personal computers, server,
Or network equipment etc. or processor (processor) execute all or part of step of each embodiment the method for the present invention
Suddenly.And storage medium above-mentioned includes：General serial bus USB (Universal Serial Bus flash drive),
Mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access
Memory, RAM), the various media that can store program code such as magnetic disc or CD.
It will be appreciated by those of skill in the art that although some embodiments in this include included in other embodiments
Certain features rather than other feature, but the combination of the feature of different embodiments means to be within the scope of the present invention simultaneously
And form different embodiments.For example, in the following claims, the one of arbitrary of embodiment claimed all may be used
It is used in a manner of in any combination.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (17)
1. the equipment cut-in method in a kind of wireless communication system, which is characterized in that including：
The distributing slot resources information that wireless access point is sent is received, the distributing slot resources information includes random access time slot
The location information of initial time and the wireless access point of the resource in current radio frames；
The upper of the terminal installation is obtained according to the location information of the location information of the wireless access point and present terminal device
The estimated value Ta of row Timing AdvanceCalc, the TaCalcThe time phase that uplink random accesses signal is sent for the terminal installation
For the lead of initial time of the random access time slot resource in current radio frames；
According to the TaCalcDetermine that random access is joined with initial time of the random access time slot resource in current radio frames
Number, and the uplink random is sent according to the random access parameter and accesses signal.
2. according to the method described in claim 1, it is characterized in that, the distributing slot resources information further includes terminal installation
The worst error Ta of upstream time leadMaxErr；
Correspondingly, described according to the TaCalcIt is determined with initial time of the random access time slot resource in current radio frames
Random access parameter specifically includes：
Using the TaMaxErrTo the TaCalcIt is modified, obtains actual uplink Timing Advance TaInit；
According to the TaInitDetermine that random access is joined with initial time of the random access time slot resource in current radio frames
Number.
3. according to the method described in claim 2, it is characterized in that, described use the TaMaxErrTo the TaCalcIt is repaiied
Just, including：
According to the TaMaxErrUsing the first default correction model to the TaCalcIt is modified, first correction model is：
TaInit=Max (TaCalc-TaMaxErr,0)。
4. according to the method described in claim 2, it is characterized in that, the method further includes：
The next radio frames for receiving the current radio frames that wireless access point is sent, when next radio frames include uplink
Between lead correction value Ta；
According to the Ta using the second default correction model to the TaInitIt is modified, second correction model is：
TaCur=Max (TaInit+Ta,0)；
Wherein, TaCurFor the desired value of the upstream time lead of terminal installation；
According to the TaCurControl the transmission of upstream data.
5. according to claim 1-4 any one of them methods, which is characterized in that the distributing slot resources information further include with
There is mark in machine access slot；
It is described according to the TaCalcIt is connect at random with initial time determination of the random access time slot resource in current radio frames
Enter parameter, including：
There is mark according to the random access time slot to judge to whether there is random access time slot resource in current radio frames；
If in current radio frames, there are random access time slot resources, according to the TaCalcExist with the random access time slot resource
Initial time in current radio frames determines random access parameter.
6. the equipment cut-in method in a kind of wireless communication system, which is characterized in that including：
Obtain the initial time of the location information and random access time slot resource of wireless access point in current radio frames；
According to the initial time life of the location information of the wireless access point and random access time slot resource in current radio frames
At distributing slot resources information；
The distributing slot resources information is sent to terminal installation, so that the terminal installation is according to the wireless access point
The location information of location information and terminal installation obtains the estimated value Ta of the upstream time lead of the terminal installationCalc；
The terminal installation is received according to the TaCalcWith initial time hair of the random access time slot resource in current radio frames
The uplink random access signal sent, and signal is accessed according to the uplink random and carries out equipment access.
7. according to the method described in claim 6, it is characterized in that, it is described obtain wireless access point location information and connect at random
Initial time of the input time slot resource in current radio frames further include：Obtain the upstream time lead of the terminal installation
Worst error TaMaxErr；
When the starting according to the location information and random access time slot resource of the wireless access point in current radio frames
Between generate distributing slot resources information, including：
According to the location information of the wireless access point, the TaMaxErrAnd random access time slot resource is in current radio frames
Initial time generate distributing slot resources information so that the distributing slot resources information is sent to the terminal installation
Later, the terminal installation uses the TaMaxErrTo the Ta gotCalcIt is modified, obtaining the actual uplink time carries
Preceding amount TaInit。
8. the method according to the description of claim 7 is characterized in that receiving the terminal installation according to the Ta describedCalcWith
After the uplink random access signal that initial time of the random access time slot resource in current radio frames is sent, the method is also
Including：
The receiving time for obtaining the uplink random access signal, repairing for upstream time lead is generated according to the receiving time
Positive value Ta；
Next radio frames of the current radio frames are sent to the terminal installation, next radio frames include described
Ta, for the terminal installation according to the Ta to the TaInitIt is modified, and according to the TaCurControl upstream data
It sends.
9. according to claim 6-8 any one of them methods, which is characterized in that the method further includes：
Configure the state of random access time slot resource in current radio frames；
If the random access time slot resource is in off state, the random access time slot resource is divided into ascending time slot money
Source.
10. according to the method described in claim 9, it is characterized in that, the method further includes：
The random access time slot is configured according to the state of the random access time slot resource and there is mark, and when by random access
Gap is added in the presence of mark in the distributing slot resources information.
11. a kind of terminal installation, which is characterized in that including：
Terminal data receiving module, the distributing slot resources information for receiving wireless access point transmission, the time interval resource point
Include the location information of initial time and the wireless access point of the random access time slot resource in current radio frames with information；
Acquisition module, described in being obtained according to the location information of the wireless access point and the location information of present terminal device
The estimated value Ta of the upstream time lead of terminal installationCalc, the TaCalcUplink random access is sent for the terminal installation
The lead of initial time of the time of signal relative to the random access time slot resource in current radio frames；
Terminal data sending module, for according to the TaCalcWith the random access time slot resource rising in current radio frames
Time beginning determines random access parameter, and sends the uplink random according to the random access parameter and access signal.
12. terminal installation according to claim 11, which is characterized in that the distributing slot resources information further includes terminal
The worst error Ta of the upstream time lead of deviceMaxErr；
The terminal data sending module, including：
First amending unit, for using the TaMaxErrTo the TaCalcIt is modified, obtains actual uplink Timing Advance
TaInit；
Determination unit, for according to the TaInitIt is true with initial time of the random access time slot resource in current radio frames
Determine random access parameter.
13. terminal installation according to claim 11 or 12, which is characterized in that the distributing slot resources information further includes
There is mark in random access time slot；
The terminal data sending module is specifically used for being existed in the current radio frames of mark judgement according to the random access time slot
With the presence or absence of random access time slot resource；If in current radio frames, there are random access time slot resources, according to the TaCalcWith
Initial time of the random access time slot resource in current radio frames determines random access parameter.
14. a kind of access point apparatus, which is characterized in that including：
Data obtaining module, the location information and random access time slot resource for obtaining wireless access point are in current radio frames
Initial time；
Information generating module, for wireless currently according to the location information and random access time slot resource of the wireless access point
Initial time in frame generates distributing slot resources information；
Access point data transmission blocks, for the distributing slot resources information to be sent to terminal installation, for the terminal
When device obtains the uplink of the terminal installation according to the location information of the wireless access point and the location information of terminal installation
Between lead estimated value TaCalc；
Access point data reception module, for receiving the terminal installation according to the TaCalcWorking as with random access time slot resource
The uplink random that initial time in preceding radio frames is sent accesses signal, and accesses signal according to the uplink random and carry out equipment
Access.
15. access point apparatus according to claim 14, which is characterized in that described information acquisition module is additionally operable to obtain
The worst error Ta of the upstream time lead of the terminal installationMaxErr；
Described information generation module is specifically used for location information, the Ta according to the wireless access pointMaxErrAnd it is random
Initial time of the access slot resource in current radio frames generates distributing slot resources information, so that by the time interval resource
Distribution information is sent to after the terminal installation, and the terminal installation uses the TaMaxErrTo the Ta gotCalc
It is modified, obtains actual uplink Timing Advance TaInit。
16. access point apparatus according to claim 15, which is characterized in that described access point device further includes：
Access Management, for receiving the terminal installation according to the Ta describedCalcWorking as with random access time slot resource
After the uplink random access signal that initial time in preceding radio frames is sent, the reception of the uplink random access signal is obtained
Time generates the correction value Ta of upstream time lead according to the receiving time；
Described access point data transmission blocks are additionally operable to next radio frames of the current radio frames being sent to the terminal dress
Set, next radio frames include the Ta, for the terminal installation according to the Ta to the TaInitIt is modified,
And according to the TaCurControl the transmission of upstream data.
17. access point apparatus according to claim 15, which is characterized in that described access point device further includes：
Configuration module, the state for configuring random access time slot resource in current radio frames；If the random access time slot money
Source is in off state, then the random access time slot resource is divided into ascending time slot resource.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020200134A1 (en) * | 2019-03-29 | 2020-10-08 | 华为技术有限公司 | Random access method, and communication device |
| WO2022135565A1 (en) * | 2020-12-24 | 2022-06-30 | 中兴通讯股份有限公司 | Random access method and apparatus, and terminal, electronic device and computer-readable storage medium |
| WO2022183875A1 (en) * | 2021-03-05 | 2022-09-09 | 华为技术有限公司 | Method for determining transmission time slot and related apparatus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100260080A1 (en) * | 2008-01-17 | 2010-10-14 | Zte Corporation | Transmitting methods of a signal on a random access channel in a wireless communication system |
| CN101931456A (en) * | 2010-08-09 | 2010-12-29 | 中兴通讯股份有限公司 | Wireless frame of mobile communication system and sending method of measurement reference signal |
| CN102065535A (en) * | 2009-11-11 | 2011-05-18 | 大唐移动通信设备有限公司 | Method and device for determining timing advance in random access process |
| US20120040707A1 (en) * | 2010-08-10 | 2012-02-16 | Samsung Electronics Co. Ltd. | Method and apparatus for configuring power headroom information in mobile communication system supporting carrier aggregation |
| CN102711273A (en) * | 2012-04-19 | 2012-10-03 | 北京创毅讯联科技股份有限公司 | Random access method in wireless network and user equipment |
| CN103582112A (en) * | 2012-08-08 | 2014-02-12 | 中兴通讯股份有限公司 | Method for determining time advance, user equipment and base station |
| CN107205281A (en) * | 2016-03-18 | 2017-09-26 | 中兴通讯股份有限公司 | The Notification Method and device of a kind of sending method of accidental access signal, resource |
| CN107333337A (en) * | 2017-08-02 | 2017-11-07 | 北京邮电大学 | A kind of accidental access method and device being grouped based on space |
-
2018
- 2018-02-09 CN CN201810135321.0A patent/CN108366421B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100260080A1 (en) * | 2008-01-17 | 2010-10-14 | Zte Corporation | Transmitting methods of a signal on a random access channel in a wireless communication system |
| CN102065535A (en) * | 2009-11-11 | 2011-05-18 | 大唐移动通信设备有限公司 | Method and device for determining timing advance in random access process |
| CN101931456A (en) * | 2010-08-09 | 2010-12-29 | 中兴通讯股份有限公司 | Wireless frame of mobile communication system and sending method of measurement reference signal |
| US20120040707A1 (en) * | 2010-08-10 | 2012-02-16 | Samsung Electronics Co. Ltd. | Method and apparatus for configuring power headroom information in mobile communication system supporting carrier aggregation |
| CN102711273A (en) * | 2012-04-19 | 2012-10-03 | 北京创毅讯联科技股份有限公司 | Random access method in wireless network and user equipment |
| CN103582112A (en) * | 2012-08-08 | 2014-02-12 | 中兴通讯股份有限公司 | Method for determining time advance, user equipment and base station |
| CN107205281A (en) * | 2016-03-18 | 2017-09-26 | 中兴通讯股份有限公司 | The Notification Method and device of a kind of sending method of accidental access signal, resource |
| CN107333337A (en) * | 2017-08-02 | 2017-11-07 | 北京邮电大学 | A kind of accidental access method and device being grouped based on space |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020200134A1 (en) * | 2019-03-29 | 2020-10-08 | 华为技术有限公司 | Random access method, and communication device |
| WO2022135565A1 (en) * | 2020-12-24 | 2022-06-30 | 中兴通讯股份有限公司 | Random access method and apparatus, and terminal, electronic device and computer-readable storage medium |
| WO2022183875A1 (en) * | 2021-03-05 | 2022-09-09 | 华为技术有限公司 | Method for determining transmission time slot and related apparatus |
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| CN108366421B (en) | 2021-10-22 |
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