CN106912099A - The uplink synchronisation method when RRC state of UE is PCH states in WCDMA direction-finding systems - Google Patents
The uplink synchronisation method when RRC state of UE is PCH states in WCDMA direction-finding systems Download PDFInfo
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- CN106912099A CN106912099A CN201710025103.7A CN201710025103A CN106912099A CN 106912099 A CN106912099 A CN 106912099A CN 201710025103 A CN201710025103 A CN 201710025103A CN 106912099 A CN106912099 A CN 106912099A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
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Abstract
The invention discloses UE in a kind of WCDMA direction-finding systems RRC state be PCH states when uplink synchronisation method, when PCH is solved, because logic channel is PCCH channels, UE in CELL PCH and URA_PCH state is not encrypted to it, therefore the mark of target can be identified in PCH；During uplink synchronous, due to not knowing the moment of the up transmissions of UE, so constantly to solve PRACH message, MAC and RLC, solution ASN.1 are then solved, finally obtain CellUpdate signalings.Because the logic channel of Cell Update signalings is CCCH, it is not encrypted, it is possible to S RNTI are matched in this signaling, so as to carry out direction finding.Present invention target identification up when solving the problems, such as that the RRC state of UE is PCH and measurement, while improve the probability of identification target in calling time detection target.
Description
Technical field
The present invention relates to wireless mobile telecommunication technology field, and in particular to the RRC state of UE in a kind of WCDMA direction-finding systems
Uplink synchronisation method during for PCH states.
Background technology
In a wireless communication system, terminal device and base station equipment are led to according to the agreement of agreement using wireless signal
Letter.Third party's direction-finding system be different from terminal device and base station equipment, it be one can and meanwhile receive upward signal (terminal send out
To the signal of base station) and downstream signal (issuing the signal of terminal in base station) a transportable equipment, its effect be
The up-link wireless signal of middle capture particular terminal of eating dishes without rice or wine, so as to estimate its transmission power.
In third party's direction-finding system, first have to be identified in descending wireless signal the signal of UE, then further according to
Configuration information is measured to the upward signal of UE.In a wcdma system, the RRC state of UE has 4 kinds of states：IDLE state,
DCH states, FACH (Forward Access Channel) states and PCH (Paging Channel) state.In base station scheduling
During, according to different business sizes, UE can be made to enter different states.For the UE (User) in PCH states, its with
RNC (Radio Network Controller) has been set up RRC connections, and RNC sides are assigned with S-RNTI to it, distribution
Encryption key.When UE has business to be communicated again, UE is then communicated with the encryption parameter for having distributed, its descending letter
Order is all to walk DCCH (Dedicated Control Channel), and is encrypted, and this causes descending in conventional method to use CCCH
(Common Control Channel) is difficult to identify that target.
The content of the invention
Out-hole run when RRC state the invention aims to solve the problems, such as to be directed to UE in the prior art is PCH, carries
For UE in a kind of WCDMA WCDMA (Wideband Code Division Multiple Access) direction-finding system
Uplink synchronisation method when RRC (Radio Resource Control) state is PCH (Paging Channel).
The purpose of the present invention can be reached by adopting the following technical scheme that：
A kind of uplink synchronisation method when the RRC state of UE is PCH states in WCDMA direction-finding systems, comprises the following steps：
S101, descending main synchronous, auxiliary synchronization, cell scrambling identification, solution system message；
S102, S-RNTI statistical tables are set up, the S-RNTI statistical tables are used for recording the S-RNTI having been detected by
And its number of times for occurring；
S103, the calling time for calculating UE to be identified；
S104, one physics frame data of extraction；
S105, judge moment corresponding to current system frame whether be this UE calling time；If it is, jumping to step
Rapid S107；If it is not, then jumping to next step S106；
S106, the arrival at wait next treatment moment, and return to step S105；
S107, by solve SCCPCH, solution MAC, solution RLC and ASN.1 decode obtain Paging signalings；
S108, judge user's in the Paging signalings identifies whether it is S-RNTI, if it is jumps to next step
Rapid S109；If not then returning to step S105；
S109, the S-RNTI of acquisition is added to the S-RNTI statistical tables；
S110, judge the frequency occurred with the presence or absence of certain S-RNTI in the S-RNTI statistical tables more than presetting
Threshold value, if then jumping to next step S111；Step S105 is returned to if not；
S111, the S-RNTI that will be greater than threshold value are set as target S-RNTI；
S112, the message part for solving up PRACH simultaneously record its energy for measuring；
S113, the message part to the PRACH parse, and obtain RRC signaling；
Whether the signaling that S114, judgement are obtained is Cell Update signalings, if jumping to next step S115, such as
Fruit is not to return to step S105；
S115, judge that the S-RNTI that the S-RNTI that the Cell Update signalings are included is obtained with the step S111 is
It is no equal, next step S116 is jumped to if equal；Step S105 is returned to if unequal；
S116, the metrical information of the corresponding PRACH of the Cell Update signalings is reported into application layer.
Further, the detailed process that system message is solved in the step S101 is as follows：
SIB5 obtains corresponding systematic parameter in read system message, and the SIB5 message includes the thing of descending solution SCCPCH
Reason layer parameter configuration.
Further, each frame time of the physics frame data is 10ms.
Further, the detailed process of the message part for solving up PRACH in the step S112 is as follows：First prefix inspection
Survey, then message parsing；Or first descending AICH detections, then upstream message parsing.
Further, the detailed process that the message part of the PRACH is parsed is included in the step S113：Solution
MAC, solution RLC, ASN.1 decoding.
The present invention has the following advantages and effect relative to prior art：
The present invention in PCH by recognizing the target knowledge when RRC state that the method for S-RNTI solves target UE is PCH
Other problem, while improve the probability of identification target in calling time detection target.Matched by Cell Update signalings
The method of S-RNTI, the RRC state for solving the problems, such as UE target identification up when being PCH and measurement.
Brief description of the drawings
Fig. 1 is the signaling diagram that the is paged when RRC state of UE is PCH；
Fig. 2 be UE in WCDMA direction-finding systems disclosed by the invention RRC state be PCH when uplink synchronous method stream
Journey block diagram.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment
Uplink synchronous when present embodiments providing a kind of RRC state of the UE in third party's WCDMA direction-finding systems for PCH
Method.
Its process includes：1st, solution PCH identifies the S-RNTI of target；2nd, up solution Cell Update signalings confirm
With measurement target.
When PCH is solved, because logic channel is, with PCCH (Paging Control Channel) channel, to be in
The UE of CELL-PCH and URA_PCH state is not encrypted to it, therefore the mark of target can be identified in PCH；Upper
In row synchronizing process, due to not knowing the moment of the up transmissions of UE, so constantly to solve PRACH (Physical Random
Access Channel) message, MAC and RLC, solution ASN.1 are then solved, finally obtain Cell Update signalings.Due to Cell
The logic channel of Update signalings is CCCH, and it is not encrypted, it is possible to match S-RNTI in this signaling, so as to carry out
Direction finding.
(1) Fig. 1 is the signaling process figure being paged when the RRC state of UE is PCH, and UE now is established with RNC
RRC is connected, and RNC is assigned with identification marking S-RNTI to UE.UE has been completed the distribution of authentication process and encryption parameter.
When being paged, NODEB first passes through PCH and sends Paging in the calling time of this UE, and Paging therein contains this
The identification marking S-RNTI of UE.After UE detects paging, Cell Update signalings can be sent on CCCH, wherein also containing S-
RNTI.Afterwards, NODEB can send Cell Update Confirm and UE and send Physical Channel
Reconfiguration Complete.In above-mentioned signaling, Paging walks logic channel PCH；Cell Update walk logic letter
Road CCCH；Cell Update Confirm and Physical Channel Reconfiguration Complete walk logic letter
Road DCCH.
(2) Fig. 2 is the method for uplink synchronous when the RRC state of UE in WCDMA direction-finding systems disclosed by the invention is PCH
Process step figure, the method is applied to WCDMA direction-finding systems, as shown in Fig. 2 specifically including the following steps:
Step S101, descending main synchronous, auxiliary synchronization, cell scrambling identification, solution system message；
The step is the processed conventionally first step of WCDMA direction-finding systems, is the process of cell searching, including descending master
Synchronization, auxiliary synchronization, cell scrambling identification, solution system message.In system message (system broadcast message), including SIB1,
SIB2 ..., SIB12, major concern SIB5, SIB5 will be read obtain corresponding systematic parameter, because this message arrangement is descending
Solve the physical layer parameter configuration of SCCPCH.
Step S102, S-RNTI statistical tables are set up, the S-RNTI statistical tables are used for recording the S- having been detected by
RNTI and its number of times of appearance；
The step is used for setting up a form of statistics S-RNTI, this form be used for recording the S-RNTI that has been detected by and
Its number of times for occurring.
Step S103, the calling time for calculating UE to be identified；
The step is used for calculating the calling time of UE to be identified.Each UE has respective calling time, during using paging
Quarter the size of S-RNTI forms in step S102 can be not only reduced, but also the probability of error detection can be reduced so as to raising property
Energy.
Step S104, one physics frame data of extraction；
The step is used for extracting a physics frame data.The treatment unit of physical layer is 10ms, and the delivery time of PCH is
10ms, the i.e. time of a physical frame.
Step S105, judge moment corresponding to current system frame whether be this UE calling time；If it is, redirecting
To step S107；If it is not, then jumping to next step S106.
Step S106, the arrival at wait next treatment moment, and jump to step S105.
Step S107, by solve SCCPCH, solution MAC, solution RLC and ASN.1 decode obtain Paging signalings；
The final purpose of the step is to solve Paging signalings.Successively parse from the bottom up, physical channel is SCCPCH, pass
Defeated channel is PCH, and logic channel is PCCH (Paging Control Chanel).By solve SCCPCH, solution MAC, solution RLC,
Beep-page message Paging can be obtained after ASN.1 decodings.
Step S108, judge user's in this call signaling identifies whether it is S-RNTI, if it is jumps to next step
Rapid S109；If not then jumping to step S105；
The step is used for judging user's in this call signaling identifies whether it is S-RNTI, if it is jumps to next step
Rapid S109；If not then jumping to step S105.
Step S109, the S-RNTI of acquisition is added to the S-RNTI statistical tables；
The S-RNTI that the step is used for acquiring is added in the S-RNTI statistical tables that step S102 is set up.
Step S110, judge the frequency occurred with the presence or absence of certain S-RNTI in the S-RNTI statistical tables more than advance
The threshold value of setting, if then jumping to next step S111；Step S105 is jumped to if not.
The step is the step of processing the data in S-RNTI statistical tables.Judge be in S-RNTI statistical tables
The no frequency that there is certain S-RNTI appearance is more than threshold value set in advance, if then jumping to next step S111；If
Step S105 is not jumped to then.
Step S111, the S-RNTI that will be greater than threshold value are set as target S-RNTI；
The S-RNTI that the step will be greater than threshold value is set as target S-RNTI, and the target identification of up treatment afterwards is exactly
This S-RNTI.
Step S112, the message part for solving up PRACH simultaneously record its energy for measuring；
The step is used for solving the message part of up PRACH and records the energy of its measurement, solves the final purpose of this channel
It is to obtain desired signaling.Include prefix part and message part during being sent due to PRACH, can first prefix detection,
Message parsing again；First descending AICH can also detect, then upstream message parsing.
Step S113, the message part to the PRACH parse, and obtain RRC (Radio Resource
Control) signaling；
The message part that the step is used for the PRACH to obtaining is parsed layer by layer, including solution MAC, solution RLC, ASN.1 solution
Code, can obtain RRC signaling afterwards.
Whether the RRC signaling that step S114, judgement are obtained is Cell Update signalings, if jumping to next step
S115, if not then jumping to step S105；
The step if it is jumps to next step S115 for judging whether the signaling for obtaining is Cell Update；
If not then jumping to step S105；
Step S115, judge the S- that the S-RNTI that the Cell Update signalings are included is obtained with the step S111
Whether RNTI is equal, and step S116 is jumped to if equal；Step S105 is jumped to if unequal；
The step is used for judging that the S-RNTI and step S111 that the Cell Update signalings obtained by previous step are included is obtained
Whether the S-RNTI for arriving is equal, and step S116 is jumped to if equal；Step S105 is jumped to if unequal.
Step S116, the metrical information of the corresponding PRACH of the Cell Update signalings is reported into application layer.
The step is used to for the metrical information of the PRACH corresponding to this signaling to report application layer.Report and successfully tie afterwards
The operation of Shu Benci out-hole runs.
In sum, the present invention in PCH by recognizing that the RRC state that the method for S-RNTI solves target UE is PCH
When target identification problem, while calling time detection target improve identification target probability.By in Cell Update
The method that S-RNTI is matched in signaling, the RRC state for solving the problems, such as UE target identification up when being PCH and measurement.
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (5)
1. the uplink synchronisation method when RRC state of UE is PCH states in a kind of WCDMA direction-finding systems, it is characterised in that including
The following steps：
S101, descending main synchronous, auxiliary synchronization, cell scrambling identification, solution system message；
S102, set up S-RNTI statistical tables, the S-RNTI statistical tables be used for recording the S-RNTI that has been detected by and its
The number of times of appearance；
S103, the calling time for calculating UE to be identified；
S104, one physics frame data of extraction；
S105, judge moment corresponding to current system frame whether be this UE calling time；If it is, jumping to step
S107；If it is not, then jumping to next step S106；
S106, the arrival at wait next treatment moment, and return to step S105；
S107, by solve SCCPCH, solution MAC, solution RLC and ASN.1 decode obtain Paging signalings；
S108, judge user's in the Paging signalings identifies whether it is S-RNTI, if it is jumps to next step
S109；If not then returning to step S105；
S109, the S-RNTI of acquisition is added to the S-RNTI statistical tables；
S110, judge that the frequency occurred with the presence or absence of certain S-RNTI in the S-RNTI statistical tables is more than threshold set in advance
Value, if then jumping to next step S111；Step S105 is returned to if not；
S111, the S-RNTI that will be greater than threshold value are set as target S-RNTI；
S112, the message part for solving up PRACH simultaneously record its energy for measuring；
S113, the message part to the PRACH parse, and obtain RRC signaling；
Whether the signaling that S114, judgement are obtained is Cell Update signalings, if jumping to next step S115, if not
It is to return to step S105；
S115, judge S-RNTI that the S-RNTI that the Cell Update signalings are included obtains with the step S111 whether phase
Deng jumping to next step S116 if equal；Step S105 is returned to if unequal；
S116, the metrical information of the corresponding PRACH of the Cell Update signalings is reported into application layer.
2. the uplink synchronisation method when RRC state of UE is PCH states in WCDMA direction-finding systems according to claim 1,
Characterized in that, the detailed process that system message is solved in the step S101 is as follows：
SIB5 obtains corresponding systematic parameter in read system message, and the SIB5 message includes the physical layer of descending solution SCCPCH
Parameter configuration.
3. the uplink synchronisation method when RRC state of UE is PCH states in WCDMA direction-finding systems according to claim 1,
Characterized in that, each frame time of the physics frame data is 10ms.
4. the uplink synchronisation method when RRC state of UE is PCH states in WCDMA direction-finding systems according to claim 1,
Characterized in that, the detailed process that the message part of up PRACH is solved in the step S112 is as follows：
First prefix detection, then message parsing；Or first descending AICH detections, then upstream message parsing.
5. the uplink synchronisation method when RRC state of UE is PCH states in WCDMA direction-finding systems according to claim 1,
Characterized in that, including to the detailed process that the message part of the PRACH is parsed in the step S113：
Solution MAC, solution RLC, ASN.1 decoding.
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Cited By (2)
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| CN109561499A (en) * | 2017-09-26 | 2019-04-02 | 捷开通讯(深圳)有限公司 | Paging method, device and readable storage medium storing program for executing |
| WO2021026911A1 (en) * | 2019-08-15 | 2021-02-18 | Nokia Shanghai Bell Co., Ltd. | Radio communication |
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| US20120021779A1 (en) * | 2007-05-06 | 2012-01-26 | Richard Lee-Chee Kuo | Method of transmitting paging information for a wireless communications system and related apparatus |
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| CN109561499A (en) * | 2017-09-26 | 2019-04-02 | 捷开通讯(深圳)有限公司 | Paging method, device and readable storage medium storing program for executing |
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