CN101854735A - Method for processing data of RLC layer and PDCP layer when RRC connection is released under LTE system - Google Patents
Method for processing data of RLC layer and PDCP layer when RRC connection is released under LTE system Download PDFInfo
- Publication number
- CN101854735A CN101854735A CN201010165335A CN201010165335A CN101854735A CN 101854735 A CN101854735 A CN 101854735A CN 201010165335 A CN201010165335 A CN 201010165335A CN 201010165335 A CN201010165335 A CN 201010165335A CN 101854735 A CN101854735 A CN 101854735A
- Authority
- CN
- China
- Prior art keywords
- layer
- rlc
- pdcp
- data
- entity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to the field of radio digital communication, in particular to a method for processing the data of an RLC (radio link control) layer and a PDCP (packet data convergence protocol) layer when the RRC (radio resource control) connection is released under an LTE (long-term evolution) system. The method comprises the steps of reorganizing the data of the RLC layer and transferring the data of the PDCP layer, wherein the step for reorganizing the data of the RLC layer comprises the following steps: after receiving the message indicating that the RRC connection is released, an RLC entity carries out the analysis of integrity on the header of RLC PDU (packet data unit) data before the resources of the RLC layer are released, and the RLC entity delivers the reorganized integral RLC PDU as an RLC SDU (service data unit) to the PDCP layer; and the step for transferring the data of the PDCP layer comprises the following steps: after receiving the data delivered by the RLC entity, a PDCP entity delivers the received RLC SDU as an PDCP PDU to an upper layer before the resources of the PDCP layer are released. By using the method, the invention can make full use of the integral cache data in the receiving window of the RLC layer, reduce the frame loss rate of data in the receiving direction and improve the reliability of the data transfer.
Description
Technical field
The present invention relates to the radio digital communication field, the data processing method of RLC (control of Radio Link Control Radio Link) layer and PDCP (Packet DataConvergence Protocol packet data convergence protocol) layer when in particular, being RRC under a kind of LTE of realization (Long TermEvolution Long Term Evolution) standard (control of Radio Resource Control Radio Resource) connection release.
Background technology
Consensus standard (LTE 36.331V850) according to current E-UTRAN (universal land radio access web of Evolved Universal Terrestrial Radio Access Network evolution), UE (UserEquipment, when subscriber equipment) leaving the RRC connected state, main process is as follows: 1. replacement MAC (access control of Medium Access Control medium); 2. stop all timers that moving except that T320; 3. discharge all Radio Resources, comprise that discharging all has built the RLC entity of RBs (Radio Bearers radio bearer), MAC configuration and PDCP entity; 4. connect to upper strata indication RRC and discharge; 5. if not trigger and withdraw from connected state, then carry out cell selecting, enter RRC_IDLE (RRC Idle state) attitude because of receiving message MobilityFromEUTRACommand (switching to the RRC message of other standards from the LTE standard).
From the process of above-mentioned agreement regulation as can be known, RRC connect one of main operation of dispose procedure be the resource that discharges data surface (as MAC, RLC, PDCP).For rlc layer, because down direction is safeguarded receive window is arranged, and may comprise complete but discontinuous RLC SDU (Service Data Unit service data unit) in the receive window among the RLC PDU of buffer memory (Packet Data Unit Packet Data Unit), presumable data are upper strata needs in these data in buffer, especially the up-to-date data of receiving, if can be favourable to upper-layer service with these data delivery to the upper strata.Yet according to the process of above-mentioned agreement regulation, when LTE left connection status, the RLC SDU that may comprise among these RLC PDU will be dropped, and causes the frame losing of receive direction data.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of under the LTE standard RRC connect in the dispose procedure and make full use of the partial data that rlc layer is accepted buffer memory in the window, reduce and accept the bearing data frame losing, realize that reciever is to the more reliable data processing method of transfer of data.
For solving the problems of the technologies described above, the invention discloses the data processing method that RRC under a kind of LTE standard connects rlc layer when discharging and PDCP layer, may further comprise the steps:
Rlc layer data recombination step, RLC entity be receiving after RRC connect to discharge notice, before rlc layer discharges resource, the head of RLC PDU data carried out integrality resolve, and complete RLCPDU restructured as RLC SDU deliver the layer to PDCP;
PDCP layer data transmission step, PDCP entity before the PDCP layer discharges resource, are delivered the RLC SDU that receives to the upper strata as PDCP PDU after the data that receive the delivery of RLC entity.
Adopt RRC under this LTE standard to connect the data processing method of rlc layer when discharging and PDCP layer, can accept that the complete RLC PDU data of buffer memory make full use of in the window to rlc layer, reduce the frame losing of receive direction data, promote reliability of data transmission.
In above-mentioned rlc layer data recombination step, can further include following steps
1) before the RLC SDU that will restructure delivers to the PDCP layer, the RLC entity is removed the head of these RLCSDU data.
Because RLC SDU header information does not have practical significance for other layers as the PDCP layer, the employing above-mentioned steps is delivered the transmission that can effectively reduce redundant data after removing RLC SDU data head again.
2) the RLC entity is delivered it in the ascending order mode according to the SN sequence number of RLC SDU and is given the PDCP layer.
Because the RLC SDU that restructures may be discontinuous, adopt the aforesaid operations step further to meet the requirement that the E-UTRAN agreement is safeguarded order so that complete but discontinuous RLC SDU submits mode.
3) the RLC entity is not set to the reason that RLC SDU delivers to the PDCP layer rebuild.
If the delivery reason of delivering to the PDCP layer owing to RLC entity RLC SDU is set to rebuild, then RLC SDU data high-rise situation may occur not being directly passed at the PDCP layer, the uncertainty that delivery data is transmitted once more at the PDCP layer in order to avoid, the RLC entity is not set to the reason that RLC SDU delivers to the PDCP layer rebuild.
In above-mentioned PDCP layer data transmission step, can further include following steps:
1) before PDCP PDU delivers to the upper strata, the PDCP entity is decrypted with integrity verification chain of command data among the PDCP PDU and handles, and user face data among the PDCP PDU is decrypted conciliates head compression processing.
Since the chain of command Data-carrying when sending possible configuration encryption and integrity protection, therefore, when receiving, it is decrypted and completeness check is handled, can further guarantee the correctness and the integrality of chain of command data.Equally, also may when sending, dispose for user side data carrying and to have encrypted and carried out the head compression, when receiving, it has been decrypted and conciliate the head compression and handle, can further guarantee the correctness and the consistency of data.
2) the PDCP entity is delivered PDCP PDU to rrc layer or is delivered and give upper layer application, to satisfy the data needs of rrc layer or upper layer application, reduces the frame losing of receive direction data.
Description of drawings
Fig. 1 is the flow chart of data processing figure of rlc layer and PDCP layer when RRC connect to discharge under the LTE standard among the present invention.
Embodiment
The embodiment of the data processing method of rlc layer and PDCP layer was carried out according to the process of Fig. 1 when RRC connected release under the LTE standard.
1) RRC notice RLC entity carries out RRC connection release;
2) the RLC entity is receiving after RRC connect to discharge notice, the head of the RLC PDU data of accepting buffer memory in the window is carried out integrality resolve, and complete RLC PDU restructured as RLC SDU deliver the layer to PDCP;
3) rlc layer discharges resource;
4) the PDCP entity is delivered the RLC SDU that receives to the upper strata as PDCP PDU after the data that receive the delivery of RLC entity.
5) the PDCP layer discharges resource.
Under RLC UM (Un-acknowledge Mode Unacknowledged Mode) pattern, owing to do not require continuous transmission, so these complete RLC PDU can not abandon.For RLC AM (AcknowledgeMode affirmation mode) pattern, on agreement, for situation about switching between standard, standard allows not to be delivered to according to the order of sequence the upper strata.Therefore, we think equally for RLC AM pattern, under the situation that the RRC connection discharges, allow not to be delivered to the upper strata according to the order of sequence, and be favourable to upper-layer service.
This processing method is not only applicable to the UE side, when leaving connected state for network side RRC, can adopt this processing mode yet.
As preferred version of the present invention, when the RLC entity is recombinated processing to RLC PDU, can further include following steps:
1) the RLC SDU that restructures is delivered to before the PDCP layer, the RLC entity is removed the head of these RLC SDU data.
2) the RLC entity is delivered it in the ascending order mode according to the SN sequence number of RLC SDU and is given the PDCP layer.
3) the RLC entity is not set to the reason that RLC SDU delivers to the PDCP layer rebuild.
In the PDCP entity is delivered the RLC SDU that receives as PDCP PDU step, can further include following steps:
1) before PDCP PDU delivers to the upper strata, the PDCP entity is decrypted with integrity verification chain of command data among the PDCP PDU and handles, and user face data is decrypted conciliates head compression processing.
2) the PDCP PDU that obtain after will disposing of PDCP entity delivers to rrc layer or delivers and give upper layer application.
Claims (9)
1. RRC connects the data processing method of rlc layer when discharging and PDCP layer under the LTE standard, it is characterized in that, may further comprise the steps,
Rlc layer data recombination step, RLC entity be receiving after RRC connect to discharge notice, before rlc layer discharges resource, the head of RLC PDU data carried out integrality resolve, and complete RLCPDU restructured as RLC SDU deliver the layer to PDCP;
PDCP layer data transmission step, PDCP entity before the PDCP layer discharges resource, are delivered the RLC SDU that receives to the upper strata as PDCP PDU after the data that receive the delivery of RLC entity.
2. the data processing method of rlc layer and PDCP layer is characterized in that the receive window that described RLC PDU data are safeguarded from the rlc layer down direction when connecting release according to RRC under the described LTE standard of claim 1.
3. the data processing method of rlc layer and PDCP layer when connecting release according to RRC under the described LTE standard of claim 1, it is characterized in that, in the described rlc layer data recombination step, before the RLC SDU that will restructure delivered to the PDCP layer, the RLC entity was removed the head of these RLC SDU data.
4. the data processing method of rlc layer and PDCP layer when connecting release according to RRC under the described LTE standard of claim 1, it is characterized in that, in the described rlc layer data recombination step, the RLC entity is delivered it in the ascending order mode according to the SN sequence number of RLC SDU and is given the PDCP layer.
5. the data processing method of rlc layer and PDCP layer is characterized in that when connecting release according to RRC under the described LTE standard of claim 1, and in the described rlc layer data recombination step, the RLC entity is not set to the reason that RLC SDU delivers to the PDCP layer rebuild.
6. the data processing method of rlc layer and PDCP layer when connecting release according to RRC under the described LTE standard of claim 1, it is characterized in that, in the described PDCP layer data transmission step, before PDCP PDU delivers to the upper strata, comprise that also the PDCP entity is decrypted the step of handling with integrity verification to chain of command data among the PDCP PDU.
7. the data processing method of rlc layer and PDCP layer when connecting release according to RRC under the described LTE standard of claim 1, it is characterized in that, in the described PDCP layer data transmission step, before PDCP PDU is delivered to the upper strata, comprise that also the PDCP entity is decrypted the step of conciliating head compression processing to user face data among the PDCP PDU.
8. the data processing method of rlc layer and PDCP layer is characterized in that in the described PDCP layer data transmission step, the PDCP entity delivers PDCP PDU to rrc layer when connecting release according to RRC under the described LTE standard of claim 1.
9. the data processing method of rlc layer and PDCP layer is characterized in that in the described PDCP layer data transmission step, the PDCP entity delivers PDCP PDU to upper layer application when connecting release according to RRC under the described LTE standard of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010165335.0A CN101854735B (en) | 2010-04-30 | 2010-04-30 | The data processing method of rlc layer and PDCP layer during RRC Connection Release under a kind of LTE standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010165335.0A CN101854735B (en) | 2010-04-30 | 2010-04-30 | The data processing method of rlc layer and PDCP layer during RRC Connection Release under a kind of LTE standard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101854735A true CN101854735A (en) | 2010-10-06 |
| CN101854735B CN101854735B (en) | 2016-02-10 |
Family
ID=42805929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010165335.0A Active CN101854735B (en) | 2010-04-30 | 2010-04-30 | The data processing method of rlc layer and PDCP layer during RRC Connection Release under a kind of LTE standard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101854735B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142942A (en) * | 2011-04-01 | 2011-08-03 | 中兴通讯股份有限公司 | Data processing method and system in relay node system |
| WO2012155427A1 (en) * | 2011-07-25 | 2012-11-22 | 中兴通讯股份有限公司 | Data processing method, apparatus and packet data convergence protocol layer module |
| WO2015139305A1 (en) * | 2014-03-21 | 2015-09-24 | 华为技术有限公司 | Method and device for data processing |
| CN106961745A (en) * | 2016-01-12 | 2017-07-18 | 宏达国际电子股份有限公司 | Handle the device and method of wireless heterogeneous networks connection |
| CN108551681A (en) * | 2012-11-29 | 2018-09-18 | 华为技术有限公司 | A kind of control method of data transmission, apparatus and system |
| WO2019034073A1 (en) * | 2017-08-17 | 2019-02-21 | 维沃移动通信有限公司 | Data processing method, transmitting terminal, and receiving terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050174956A1 (en) * | 2004-02-04 | 2005-08-11 | Lg Electronics Inc. | Apparatus and method of releasing a point-to-multipoint radio bearer |
| CN101699782A (en) * | 2009-11-06 | 2010-04-28 | 中兴通讯股份有限公司 | Processing method and device of wireless link retransmitted data |
| CN102265700A (en) * | 2008-12-26 | 2011-11-30 | Lg电子株式会社 | Method of releasing radio bearer in wireless communication system and receiver |
-
2010
- 2010-04-30 CN CN201010165335.0A patent/CN101854735B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050174956A1 (en) * | 2004-02-04 | 2005-08-11 | Lg Electronics Inc. | Apparatus and method of releasing a point-to-multipoint radio bearer |
| CN102265700A (en) * | 2008-12-26 | 2011-11-30 | Lg电子株式会社 | Method of releasing radio bearer in wireless communication system and receiver |
| CN101699782A (en) * | 2009-11-06 | 2010-04-28 | 中兴通讯股份有限公司 | Processing method and device of wireless link retransmitted data |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142942A (en) * | 2011-04-01 | 2011-08-03 | 中兴通讯股份有限公司 | Data processing method and system in relay node system |
| CN102142942B (en) * | 2011-04-01 | 2017-02-08 | 中兴通讯股份有限公司 | Data processing method and system in relay node system |
| WO2012155427A1 (en) * | 2011-07-25 | 2012-11-22 | 中兴通讯股份有限公司 | Data processing method, apparatus and packet data convergence protocol layer module |
| CN102905310A (en) * | 2011-07-25 | 2013-01-30 | 中兴通讯股份有限公司 | Data processing method, device and packet data convergence protocol layer module |
| CN108551681A (en) * | 2012-11-29 | 2018-09-18 | 华为技术有限公司 | A kind of control method of data transmission, apparatus and system |
| WO2015139305A1 (en) * | 2014-03-21 | 2015-09-24 | 华为技术有限公司 | Method and device for data processing |
| CN106961745A (en) * | 2016-01-12 | 2017-07-18 | 宏达国际电子股份有限公司 | Handle the device and method of wireless heterogeneous networks connection |
| CN106961745B (en) * | 2016-01-12 | 2019-11-05 | 宏达国际电子股份有限公司 | Handle the device and method of wireless heterogeneous networks connection |
| WO2019034073A1 (en) * | 2017-08-17 | 2019-02-21 | 维沃移动通信有限公司 | Data processing method, transmitting terminal, and receiving terminal |
| US11343713B2 (en) | 2017-08-17 | 2022-05-24 | Vivo Mobile Communication Co., Ltd. | Data processing method, transmitter and receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101854735B (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11057797B2 (en) | Method and device for processing information | |
| CN102395156B (en) | Data transmission methods and device applied between packet data convergence protocol (PDCP) entity and radio link control (RLC) entity | |
| RU2461147C2 (en) | Method of processing radio protocol in mobile communication system and mobile communication transmitter | |
| CN103428896B (en) | Evolved universal terrestrial radio access network and the means of communication thereof and subscriber equipment | |
| EP2290863B1 (en) | Wireless communication method for transmitting a sequence of data units between a wireless device and a network | |
| USRE48291E1 (en) | Method of delivering a PDCP data unit to an upper layer | |
| EP2181540B1 (en) | Effective data block transmission method using header indicator | |
| EP2135366B1 (en) | Method of transmitting data in a wireless communication system | |
| WO2018121096A1 (en) | Flow control method, device, cu, du and storage medium | |
| CN111034343A (en) | Method and system for handling packet repetition and recovery of RBs in wireless communication system | |
| US20080119189A1 (en) | Method, system and base station for transmitting data during cell handover | |
| US20100195617A1 (en) | method for handling correctly received but header compression failed packets | |
| CN101854735A (en) | Method for processing data of RLC layer and PDCP layer when RRC connection is released under LTE system | |
| EP2498535B1 (en) | Packet data transmitting method and system for packet service domain | |
| CN101836374A (en) | Method for transmitting data of common control channel | |
| CN104935414A (en) | Method for transmitting information in dual connection system and device | |
| CN107454679A (en) | Handle the device and method that wireless heterogeneous networks link recovery routine | |
| WO2019019023A1 (en) | Switching method, access network device and terminal device | |
| CN101442398A (en) | Method for handling radio bearer messages during reset and reestablishment in a wireless system | |
| JP2023502822A (en) | DAPS HANDOVER METHOD, USER EQUIPMENT AND COMPUTER READABLE MEDIUM | |
| WO2008136598A1 (en) | Method of data processing in a wireless communication system | |
| WO2022193932A1 (en) | Lte pdcp data decryption enhancement method and apparatus | |
| CN104518851A (en) | Method and device for data processing | |
| GB2462699A (en) | Delivering PDCP SDUs to an upper layer within a receiving side entity of an E-UMTS | |
| CN100359841C (en) | A method for transmitting status report |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |