CN100431388C - Method for improving user device state transition speed - Google Patents
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Abstract
The present invention discloses a method for increasing the speed of state transition of user devices. The method comprises the steps that after the user device receives a wireless loading reconfiguration completion acknowledgement message sent out by the network side in the state that a region is forward connected to a channel CELL-FACH, the user device sends out respectively a message to a layer-2 protocol entity and a physical layer to indicate that the layer-2 protocol entity and the physical layer enter a region calling channel CELL-PCH state; the layer-2 protocol entity and the physical layer carry out corresponding action so that the user device enters the CELL-PCH state. When the user device receives a calling message which requires to send out data and is sent out by the network side or region renewal is automatically is triggered, the user device sends out the message to the layer-2 protocol entity and the physical layer to indicate that the layer-2 protocol entity and the physical layer enter the CELL_FACH state; the layer-2 protocol entity and the physical layer carry out corresponding action so that the user device enter the CELL_FACH state and the renewal process of the region is started. The present invention can simplify inner signaling code treatment of the user device and increase the speed of the state transition of the user device.
Description
Technical field
The present invention relates to the mobile communication technology field, be specifically related to a kind of method that improves user apparatus state transition speed.
Background technology
In mobile communication system, UE (subscriber equipment) has two kinds of basic operational modes: idle pulley and connection mode.The beginning UE that powers on just rests under the idle pulley, distinguish as IMSI (IMSI International Mobile Subscriber Identity), TMSI (casual user's identify label) or P-TMSI signs such as (Packet TemporaryMobile Subscriber Identity, packet TMSIs) by the Non-Access Stratum sign.The information that UTRAN (land radio access web) does not preserve idle pulley UE, all UE in only can sub-district of paging or all UE of same calling time.Connect when setting up when UE finishes RRC (Radio Resource control), UE transfers to connection mode from idle pulley.UE exists four kinds of states under the RRC connection mode, these four kinds of states have reflected that rank and UE that UE connects can use any transmission channel.When RRC connected release, UE transferred to idle pulley from connection mode.
Under the RRC connection mode, the state of UE is divided into four kinds: CELL_DCH state, CELL_FACH state, CELL_PCH state, URA_PCH state.These states have defined physical channel kind, measurement and the mobile management task that UE uses, and the action when state transitions takes place.Wherein, under the CELL_DCH state, system can give the UE assigned with dedicated channel, is used for the transfer of data of big flow; When the activity reduction of UE, when data quantity transmitted obviously reduced, system can transfer the state of UE to the CELL_FACH state.Under the CELL_FACH state, UE can only use common signal channel and system communication, up use RACH (Random Access Channel), and descending use FACH (forward access channel), this state is fit to the transfer of data of smallest number.When if the activity of UE reduces again, system can transfer the state of UE to CELL_PCH, and in this case, UE can only monitoring seek channel, and can not carry out any transfer of data.The state that activity is minimum is the URA_PCH state, and in this state, UE also can only monitoring seek channel.The difference of URA_PCH state and CELL_PCH state is, when UE is positioned at the CELL_PCH state, when if the Serving cell at current place changes, just need report once to UTRAN, and when the URA_PCH state, only needing just needs to report when URA (UTRAN Registration Area territory) district at place changes.The size in operator self-defined URA district generally can comprise several sub-districts.
Four kinds of states of this of UE are not isolated constant, but can shift mutually.When the user when carrying out the transmission of big data on flows, system can allow UE be in the CELL_DCH state, when the user does not have transfer of data for a long time or data volume hour, system can allow UE forward CELL_FACH state or CELL_PCH state or URA_PCH state to; When UE is in the CELL_FACH state, when the data volume that system monitoring is uploaded to the user surpasses certain thresholding or system will pass lot of data down and give UE the time, can allow UE forward the CELL_DCH state to.System can allow UE shift between CELL_FACH state and CELL_PCH state or URA_PCH state according to the data traffic situation between user and the system.When UE is in CELL_PCH state or URA_PCH state,, just need earlier UE is transferred to the CELL_FACH state if there are data will upload or system will pass data and give UE the time.
Existing protocol regulation enters the CELL_PCH state, and UE can not use the RACH/FACH channel, and when entering the CELL_FACH state, need reselect SCCPCH (Secondary Common Control Physical Channel), sets up the RACH/FACH channel; Leave the CELL_FACH state, when entering the CELL_PCH state, need reselect SCCPCH, set up PCH/PICH (paging channel/Page Indication Channel).
Fig. 1 shows in the prior art transition between states flow process between the CELL_FACH and CELL_PCH:
1. when UE is in the CELL_FACH state, receive the radio bearer reconfiguration message that RNC sends, indication UE enters the CELL_PCH state;
Reshuffle 2.UE carry out radio bearer, send radio bearer to RNC after finishing and reshuffle and finish message;
Finish acknowledge message 3.RNC respond;
4.UE after receiving this message, indication RLC (Radio Link control) forbids sending periodic state bag;
Delete the CELL_RNTI (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol) of MAC layer simultaneously;
5.UE obtain the information of SCCPCH (Secondary Common Control Physical Channel) by system information;
6.UE according to this information configuration physical layer PCH/PICH (paging channel/Page Indication Channel);
7.UE when the CELL_PCH state, monitor the paging information of PCCH (Paging Control Channel),, need move to the CELL_FACH state when listening to when needing uplink data transmission;
8. obtain the information of SCCPCH by system information;
9.UE according to this information configuration physical layer FACH transmission channel and SCCPCH physical channel;
10. obtain the information of PRACH (Physical Random Access Channel) by system information;
11. according to this information configuration physical layer RACH transmission channel and PRACH physical channel;
12. after configuration was finished, UE entered the CELL_FACH state, UE sends page response to RNC, the reporting cell lastest imformation;
13.RNC respond the cell update acknowledge message.
As seen, this processing mode makes UE during transition, increase the complexity that the UE interior signaling is handled between CELL_PCH state and CELL_FACH state, and has prolonged the processing time of UE interior signaling.
Summary of the invention
The purpose of this invention is to provide a kind of method that improves user apparatus state transition speed, need reselect SCCPCH when UE changes in the prior art set up respective channel between CELL_PCH state and CELL_FACH state to overcome, make the UE interior signaling handle shortcoming complicated, that the time is long, simplify the UE interior signaling and handle, improve the transition speed of UE between CELL_PCH and CELL_FACH state.
For this reason, the invention provides following technical scheme:
A kind of method that improves user apparatus state transition speed may further comprise the steps:
A, when described subscriber equipment receiving under the cell forward access channel CELL_FACH state radio bearer that network side sends reshuffle finish acknowledge message after, to packet data convergence protocol entity and radio link control entity and physical layer transmission message, indication packet data convergence protocol entity and radio link control entity and physical layer enter cell paging channel CELL_PCH state respectively;
B, described packet data convergence protocol entity and radio link control entity according to the message of receiving that enters the CELL_PCH state, stop to receive high level data respectively; Described physical layer stops to receive the data on the forward access channel FACH according to the message of receiving that enters the CELL_PCH state, and a monitoring seek channel makes described subscriber equipment enter the CELL_PCH state;
C, after described subscriber equipment receives that needs that network side sends send the beep-page message of data or self triggering cell and upgrade, to described physical layer and described packet data convergence protocol entity and radio link control entity transmission message, indicate described physical layer and described packet data convergence protocol entity and radio link control entity to enter the CELL_FACH state respectively;
D, described physical layer begin to receive the data on the forward access channel FACH according to the message of receiving that enters the CELL_FACH state; Described radio link control entity according to the message of receiving that enters the CELL_FACH state, begins to receive high level data respectively, makes described subscriber equipment enter the CELL_FACH state, and starts cell updating course.
Also comprise after the described step D:
D3, after described subscriber equipment enters the CELL_FACH state, if after receiving the cell update acknowledge message that network side sends and successfully finishing dealing with, then indicate the grouped data convergence layer to leave the CELL_PCH state;
After D4, described grouped data convergence layer are received the message of leaving the CELL_PCH state, begin to receive high level data.
By above technical scheme provided by the invention as can be seen, the present invention is by increasing by two primitive between RLC (Radio Link control) and RRC (Radio Resource control), be after UE enters the CELL_PCH state, indication PDCP and RLC enter the CELL_PCH state, and the indication physical layer enters the CELL_PCH state; UE from the CELL_PCH state when the CELL_FACH transition between states, the indication physical layer enters the CELL_FACH state, and indication RLC leaves the CELL_PCH state, make UE in CELL_PCH/URA_PCH state and CELL_FACH transition between states process, UE RRC neither needs to delete the FACH/RACH common signal channel of MAC (medium access control) layer and physical layer, does not also rebuild the FACH/RACH common signal channel of MAC layer and physical layer.If the business in PS (packet switching) territory is arranged during this, RRC will can indicate PDCP (packet data convergence protocol) to enter or leave the CELL_PCH state equally.The present invention has simplified the signaling process of UE inside greatly, makes UE promptly to carry out transition between CELL_PCH and CELL_FACH state, has improved system response time effectively.
Description of drawings
Fig. 1 is a transition between states flow chart between CELL_FACH and the CELL_PCH in the existing protocol;
Fig. 2 is the realization flow figure of the inventive method;
Fig. 3 is UE flow chart during transition between CELL_FACH and CELL_PCH state in the inventive method;
Fig. 4 is UE state exchange schematic diagram between CELL_FACH and CELL_PCH in the inventive method.
Embodiment
When core of the present invention is UE from CELL_FACH transition between states to the CELL_PCH/URA_PCH state, make UE RRC not delete the FACH/RACH Common transport channel of MAC and physical layer, do not delete this physical layer PRACH/SCCPCH public physic channel yet, only need the indication physical layer can not use the FACH channel now, indicate RLC, PDCP to enter the CELL_PCH/URA_PCH state this moment simultaneously, can not send data.Each protocol entity of UE is all entered a kind ofly can not send the state that data can not receive the FACH data, reached consistency.After entering the CELL_PCH state, if have this moment business transmission, other signalings transmissions or the network side in PS (packet switching) territory to leave the CELL_PCH state by page notification UE, then RRC starts the operation that disengaging CELL_PCH state enters the CELL_FACH state, this operation only needs indication RLC, PDCP to leave the CELL_PCH state, indicate physical layer can use the FACH channel to get final product simultaneously, do not need to rebuild MAC layer and physical layer this moment the FACH/RACH configuration of common channel.
The present technique field personnel know, carries out Cell searching after the UE start, searches the sub-district that a signal strength signal intensity satisfies resident condition and carry out resident.After receiving the system information that network side sends, according to this system information configuration Common transport channel and physical channel, UE enters idle pulley subsequently.Subsequently, network side is set up message by the RRC connection and is finished UE signaling establishment of connection, sets up the foundation that message is finished the Traffic Channel of UE by RB (Radio bearer, radio bearer), and UE enters conversation or other professional transmission states then.After RB foundation is finished, record the RB information of RAB (Radio access bearer, the RAB) correspondence of current use, the DCH information of RB correspondence in the UE sidelights.
When network congestion or UE occurring and in a period of time, not having great amount of data transmission, UE will temporarily not use dedicated channel, but the connection of the signaling of UE does not disconnect, and network side will leave the CELL_DCH state by RB control procedure indication UE this moment, enter the CELL_FACH state.
UE enters the CELL_FACH state from the CELL_DCH state, RRC can rebulid Common transport channel (comprising RACH, FACH, PCH) and public physic channel (comprising PRACH, SCCPCH, PICH, FPACH (forward physical access channel)) according to connection mode, uses public channel to send then or the reception data.If the UE low volume data does not need to send in a period of time, network side might indicate UE to enter CELL_PCH or URA_PCH state.Because it may be temporary transient entering these states, therefore can make UE continue to preserve RB information and transmitting channel information, simultaneously also not deletion of physically layer Common transport channel and public physic channel, the transition speed when improving UE from CELL_FACH transition between states to the CELL_PCH/URA_PCH state.Equally, as UE during at the CELL_PCH/URA_PCH state, by the physical layer monitoring seek channel, when physical layer detects the paging information of this UE, report RRC by MAC, after RRC receives beep-page message, indication physical layer and layer 2 protocol entity enter the CELL_FACH state, at this moment, make UE can reuse the RB information and the transmitting channel information of preservation, simultaneously do not need to rebuild physical layer Common transport channel and public physic channel the transition speed when having improved UE from CELL_FACH transition between states to the CELL_PCH/URA_PCH state yet.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
With reference to Fig. 2, Fig. 2 shows the realization flow of the inventive method, may further comprise the steps:
Step 201: when UE receiving under the CELL_FACH state radio bearer that network side sends reshuffle finish acknowledge message after, send message to layer 2 protocol entity and physical layer respectively, marker 2 protocol entities and physical layer enter cell paging channel CELL_PCH state.
After UE enters the CELL_FACH state from CELL_DCH, RRC can rebulid Common transport channel (comprising RACH/FACH/PCH) and public physic channel (PRACH/SCCPCH/PICH/FPACH) according to connection mode, uses public channel to send then or the reception data.
UE is under the CELL_FACH state, if when the UE low volume data did not need to send in a period of time, network side sent radio bearer reconfiguration message to UE, after UE receives this message, carry out radio bearer according to this message and reshuffle, send the radio bearer configuration to network side after finishing and finish message.After network side is received this message, respond radio bearer to UE and reshuffle and finish acknowledge message.
At this moment, UE does not delete the CELL_RNTI (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol) of MAC layer, do not need to reconfigure physical layer PCH/PICH (paging channel/Page Indication Channel) information according to system information yet, and only need to send message to layer 2 protocol entity and physical layer respectively, marker 2 protocol entities and physical layer enter cell paging channel CELL_PCH state.
Entering CELL_PCH state UE can not transceive data, so after layer 2 protocol entity and physical layer receive corresponding message, enters step 202.
Step 202: layer 2 protocol entity and physical layer are carried out corresponding action according to the message of receiving that enters the CELL_PCH state respectively, make subscriber equipment enter the CELL_PCH state.
Concrete action is as follows:
After the layer 2 protocol entity was received the message that enters the CELL_PCH state, PDCP protocol entity and rlc protocol entity all stopped to receive high level data;
After physical layer is received the message that enters the CELL_PCH state, stop to receive the data on the FACH channel, a monitoring seek channel.
UE if this moment, network side need send data, can indicate UE to initiate cell update by paging under the CELL_PCH state, and network side disposes corresponding channel according to demand then, indicates to UE by the cell update acknowledge message; UE also can be upgraded by the protocol entity triggering cell of himself under the CELL_PCH state, promptly enters step 203.
Step 203: after UE receives the beep-page message or the renewal of self triggering cell that network side sends, send message to physical layer and layer 2 protocol entity respectively, indication physical layer and layer 2 protocol entity enter the CELL_FACH state.
Step 204: physical layer and layer 2 protocol entity carry out corresponding action according to the message of receiving that enters the CELL_FACH state respectively, make subscriber equipment enter the CELL_FACH state, and UE starts cell updating course simultaneously, and send cell update message to network side.
Concrete action is as follows:
After physical layer is received the message that enters the CELL_FACH state, begin to receive the data on the FACH channel.
After the layer 2 protocol entity was received the message that enters the CELL_FACH state, the rlc protocol entity began to receive high level data.
After UE enters the CELL_FACH state,, other protocol entities this moment (sending such as, NAS layer signaling) then can notify RRC to leave the CELL_PCH/URA_PCH state if having data to send.RRC will initiate the cell update of " uplink data transmission " after receiving such message.
After step 205:UE received the cell update acknowledge message that network side sends and successfully handles this message, indication PDCP protocol entity left the CELL_PCH state.
After step 206:PDCP protocol entity is received the message of leaving the CELL_PCH state, begin to receive high level data.
In the present invention, if UE enters the CELL_FACH state from IDLE (free time), the UE RACH/FACH channel under the pattern that can connect.Under the CELL_FACH state, UE might just set up signaling RB (radio bearer), be SRB1, SRB2, SRB3, UE also might set up the Traffic Channel in PS (packet switching) territory, activated the RAB (RAB) in PS territory, network side and terminal send the business in PS territory by common signal channel.If this moment, the reconfiguration message of network side required UE to enter the CELL_PCH/URA_PCH state in this sub-district, this state may be temporary transient, receive after this reconfiguration message, this moment, UE did not delete the transmission channel of MAC layer, the information of RLC SRB, and the corresponding RAB information of RABM (RAB management).Simultaneously in order to guarantee that RLC and PDCP do not send uplink data, RRC enters the CELL_PCH/URA_PCH state by a piece of news indication RLC and PDCP, RLC and PDCP receive that this message has just stopped the transmission and the reception of data and signaling later on, if this moment, high-rise PS territory had data to send, PDCP can notify RRC need send data.Can notify RRC to leave the CELL_PCH/URA_PCH state too if same RLC has data to send, RRC receives that such message will initiate the cell update of " uplink data transmission ".If need send data in CELL_PCH state network side, can indicate UE to initiate cell update by paging, network side disposes corresponding cell update acknowledge message according to demand and gives UE then.
As seen, utilize the present invention, UE is in CELL_PCH/URA_PCH state and CELL_FACH transition between states process, and UE RRC neither needs to delete the FACH/RACH common signal channel of MAC layer and physics, does not also rebuild the FACH/RACH common signal channel of MAC layer and physics.Only need between RLC and RRC, to increase the conversion that two message can realize this state.If the business in PS territory is arranged during this, RRC will can indicate PDCP to enter or leave the CELL_PCH state equally.Like this, UE just can promptly carry out transition between states and simplify the signaling process of UE inside between CELL_PCH and CELL_FACH state.
With reference to Fig. 3, Fig. 3 shows UE flow chart during transition between CELL_FACH and CELL_PCH state:
1. when UE is in the CELL_FACH state, receive the radio bearer reconfiguration message that RNC sends, indication UE enters the CELL_PCH state;
Reshuffle 2.UE carry out radio bearer, send radio bearer to RNC after finishing and reshuffle and finish message;
Finish acknowledge message 3.RNC respond;
4.UE after receiving this message, indication PDCP, RLC enter the CELL_PCH state;
5.PDCP, RLC stops to receive high level data;
6.UE the indication physical layer enters the CELL_PCH state;
7. physical layer stops to receive the data on the FACH channel, a monitoring seek channel;
8.UE when the CELL_PCH state, monitor the paging information of PCCH (Paging Control Channel),, need move to the CELL_FACH state when listening to when needing uplink data transmission;
9.UE receive the cell update that triggers " page response " behind the paging information;
10.UE indicate physical layer to enter the CELL_FACH state simultaneously;
11. physical layer begins to receive data on the FACH channel according to this indication;
12.UE indication RLC leaves the CELL_PCH state;
13.RLC begin to receive high level data according to this indication;
14.UE after entering the CELL_FACH state, send the cell update page response to RNC;
15.RNC respond the cell update acknowledge message;
16.UE after receiving the cell update acknowledge message, indication PDCP leaves the CELL_PCH state;
17.PDCP begin to receive high level data according to this indication.
State exchange is as shown in Figure 4 between CELL_FACH and CELL_PCH for UE:
The initial condition of supposing UE is the CELL_FACH state, has promptly set up Common transport channel.
(1) UE is when the CELL_FACH state, and RNC sends the RB reconfiguration message, and new state is CELL_PCH;
(2) after UE receives this message, stopped to send, receiving data by RRC (Radio Resource control) indication RLC, UE enters the CELL_PCH state, and this moment, UE did not delete the FACH/RACH channel;
(3) after RRC receives NAS (Non-Access Stratum) signaling or RLC data sending request message, enter the CELL_FACH state, this moment, UE did not need to rebuild the FACH/RACH channel, and notice RLC can send data now;
(4) then, UE initiates the cell update message that uplink data transmits to RNC.
As seen, UE from CELL_FACH transition between states to the CELL_PCH/URA_PCH state, UE RRC does not delete the FACH/RACH Common transport channel of MAC and physical layer, the also PRACH/SCCPCH public physic channel of deletion of physically layer not, as long as the indication physical layer can not be used the FACH channel now, indicate RLC, PDCP to enter the CELL_PCH/URA_PCH state at this moment simultaneously, can not send data, like this, each protocol entity of UE has just all entered and a kind ofly can not send the state that data can not receive the FACH data;
As UE during from CELL_PCH/URA_PCH transition between states to the CELL_FACH state, UE RRC does not rebuild MAC and physical layer to the FACH/RACH configuration of common channel, just indicates RLC, PDCP to leave the PCH state, indicates physical layer can use the FACH channel simultaneously.If have business transmission, other signalings transmissions or the network side in PS territory to leave the CELL_PCH/URA_PCH state by page notification UE during this, RRC can start the operation that breaks away from the CELL_PCH/URA_PCH state.
By this processing mode, simplified the signaling process of UE inside greatly.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (2)
1, a kind of method that improves user apparatus state transition speed is characterized in that, may further comprise the steps:
A, when described subscriber equipment receiving under the cell forward access channel CELL_FACH state radio bearer that network side sends reshuffle finish acknowledge message after, to packet data convergence protocol entity and radio link control entity and physical layer transmission message, indication packet data convergence protocol entity and radio link control entity and physical layer enter cell paging channel CELL_PCH state respectively;
B, described packet data convergence protocol entity and radio link control entity according to the message of receiving that enters the CELL_PCH state, stop to receive high level data respectively; Described physical layer stops to receive the data on the forward access channel FACH according to the message of receiving that enters the CELL_PCH state, and a monitoring seek channel makes described subscriber equipment enter the CELL_PCH state;
C, after described subscriber equipment receives that needs that network side sends send the beep-page message of data or self triggering cell and upgrade, to described physical layer and described packet data convergence protocol entity and radio link control entity transmission message, indicate described physical layer and described packet data convergence protocol entity and radio link control entity to enter the CELL_FACH state respectively;
D, described physical layer begin to receive the data on the forward access channel FACH according to the message of receiving that enters the CELL_FACH state; Described radio link control entity begins to receive high level data according to the message of receiving that enters the CELL_FACH state, makes described subscriber equipment enter the CELL_FACH state, and starts cell updating course.
2, the method for raising user apparatus state transition speed according to claim 1 is characterized in that, also comprises after the described step D:
D3, after described subscriber equipment enters the CELL_FACH state, if after receiving the cell update acknowledge message that network side sends and successfully finishing dealing with, then indicate the grouped data convergence layer to leave the CELL_PCH state;
After D4, described grouped data convergence layer are received the message of leaving the CELL_PCH state, begin to receive high level data.
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| CN101459936B (en) | 2008-02-04 | 2010-08-18 | 华为技术有限公司 | Method, apparatus and system for triggering resource configuration |
| CN101594274B (en) * | 2008-05-29 | 2012-04-18 | 中兴通讯股份有限公司 | Initial access method and transmission method of initial access signaling |
| CN101646213B (en) * | 2008-08-07 | 2012-05-30 | 华为技术有限公司 | Method and device for optimizing cell reselection |
| CN101674670B (en) * | 2008-09-12 | 2011-11-16 | 电信科学技术研究院 | Method, system and terminal of state transition |
| CN102118853B (en) * | 2010-01-04 | 2014-08-06 | 电信科学技术研究院 | Terminal state notification method, terminal state determination method, wireless communication system and network equipment |
| CN102065487B (en) * | 2010-12-06 | 2014-04-02 | 大唐移动通信设备有限公司 | Method and equipment for resetting user |
| CN103763748A (en) * | 2014-01-23 | 2014-04-30 | 中国联合网络通信集团有限公司 | Data transmission method and device |
| WO2019157680A1 (en) * | 2018-02-13 | 2019-08-22 | 富士通株式会社 | Information receiving and transmitting method, apparatus, and communications system |
| US11129041B2 (en) | 2018-07-20 | 2021-09-21 | FG Innovation Company Limited | Reporting early measurement results in the next generation wireless networks |
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|---|---|---|---|---|
| CN1468013A (en) * | 2002-06-21 | 2004-01-14 | 华硕电脑股份有限公司 | Method for determining rlc entity re-establishment during srns relocation |
| EP1383348A1 (en) * | 2002-07-17 | 2004-01-21 | ASUSTeK Computer Inc. | Handling of a wireless device re-entering a service area |
| KR20050028254A (en) * | 2003-09-18 | 2005-03-22 | 삼성전자주식회사 | Method for identifying states between user terminal and network in asynchronous wcdma system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468013A (en) * | 2002-06-21 | 2004-01-14 | 华硕电脑股份有限公司 | Method for determining rlc entity re-establishment during srns relocation |
| EP1383348A1 (en) * | 2002-07-17 | 2004-01-21 | ASUSTeK Computer Inc. | Handling of a wireless device re-entering a service area |
| KR20050028254A (en) * | 2003-09-18 | 2005-03-22 | 삼성전자주식회사 | Method for identifying states between user terminal and network in asynchronous wcdma system |
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