JP5005785B2 - Method and associated communication apparatus for reconfiguration of radio link control in a radio communication system - Google Patents

Description

  The invention relates to a method and a communication device for resetting parameters of a radio link control layer in a radio communication system according to the previous section of the characterizing part of claims 1 and 12.

  Long-term development wireless communication system (LTE system), initiated by 3G mobile phone communication system, now has a new wireless interface and high data rate, low latency, packet optimization, improved system capacity and coverage Considered as a wireless network architecture to provide. In the LTE system, E-UTRAN (Evolved Universal Terrestrial Access Network) includes a plurality of eNBs (evolved Node-Bs), communicates with a plurality of mobile stations, and is also referred to as user equipment (UEs).

  The radio interface protocol of the LTE system includes three layers: physical layer (L1), data link layer (L2), and network layer (L3), and the control layer of L3 is the radio resource control (RRC) layer. Yes, L2 is further divided into a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer.

  The main services and functions of the RLC layer are: transfer of upper layer PDUs; error correction through ARQ (acknowledged mode data transfer only); concatenation, segmentation and reassembly of RDC SDUs (non-acknowledgment mode) (Unknown mode and data transfer in acknowledge mode only); Re-segmentation of RLC data PDUs (data transfer in acknowledge mode only); Deliver upper layer PDUs in sequence (data transfer in non-acknowledge mode and acknowledge mode) Protocol error detection and recovery; RLC SDU abandonment (non-acknowledgment and acknowledgment modes only); and RLC reassembly.

  Various RLC layer parameters such as timers and counters are used for the above functions / services and are set or reset by the RRC layer. In RRC (re-) setting, the parameters of the RLC layer are grouped into “RLC Config” information element (IE), which can be referred to in Non-Patent Document 2.

  The logical channel is used for the RLC layer to communicate with the MAC layer. For data priority and quantity agreements, each logical channel is set with parameters relating to transmission priority and prioritized bit rate. Various logical channel parameters are also set or reconfigured by the RRC layer and grouped into a “logical channel config” IE, which can be referenced in [2].

  The above RLC layer parameters and ethical channel parameters are considered here as RLC related parameters. The UE starts using the RLC parameter reset value when the RLC parameter is reset by the upper layer. Furthermore, the UE may receive a “RLC Config” or “Logical Channel Config” IE if its RLC related parameters are in use. In this situation, the UE immediately uses the reconfigured values for the RLC related parameters in use. However, changing the value of RLC related parameters in use immediately may cause UE system failure or affect communication system performance.

  For example, the RLC counter set with the maximum value M1 is in the count state in the RLC procedure. While the RLC counter is counting, the UE receives a reconfiguration indicating the new maximum value M2 for the RLC counter. If M2> M1, and if the UE immediately replaces M1 with M2, the RLC counter will be able to count up to M2 in the RLC procedure. The performance of the RLC procedure is affected. An inappropriate maximum setting will cause an RLC error.

3GPP TS25.322 V8.3.0 Radio Link Control (RLC) protocol specification 3GPP TSG-RAN2 Meeting # 65 R2-091971

  In view of this, the present invention aims to provide a method for reconfiguring RLC related parameters and related communication devices in a wireless communication system in order to solve the above problems.

  This is achieved according to claims 1 and 12 by an RLC reconfiguration method for a communication device of a wireless communication system. The dependent claims relate to corresponding further developments and improvements.

  As will become more apparent from the detailed description that follows, a method for reconfiguring radio link control layer parameters for a wireless communication system may include an RLC-related parameter if the RLC-related parameter is in use. Receiving a dedicated signaling containing a corresponding reset value, and if that reset value is extracted from the dedicated signaling, immediately using the reset value for the RLC-related parameter in use Includes steps that do not begin.

  In the following, the present invention will be further illustrated by way of example and with reference to the accompanying figures.

1 is a schematic diagram of a wireless communication system. 1 is a schematic diagram of a communication device according to an embodiment of the present invention. 1 is a schematic diagram of a multiplex communication protocol layer. FIG. 4 is a flowchart of a process according to an embodiment of the present invention. 4 is a flowchart of a process according to an embodiment of the present invention. 4 is a flowchart of a process according to an embodiment of the present invention. 4 is a flowchart of a process according to an embodiment of the present invention. 4 is a flowchart of a process according to an embodiment of the present invention. 4 is a flowchart of a process according to an embodiment of the present invention. 4 is a flowchart of a process according to an embodiment of the present invention. 4 is a flowchart of a process according to an embodiment of the present invention. 4 is a flowchart of a process according to an embodiment of the present invention. 1 is a schematic diagram of a communication device according to an embodiment of the present invention.

  Please refer to FIG. 1, which represents a schematic diagram of a wireless communication system 10 according to an embodiment of the present invention. Briefly, the wireless communication system 10 includes a network and a plurality of communication devices. In FIG. 1, the network and communication device are used only to describe the structure of the wireless communication system 10. The wireless communication system 10 may be a UMTS (Universal Mobile Telecommunication System) or LTE (Long-term evolution) system. In the LTE system, the network is called EUTRAN (evolved UTRAN) and includes a plurality of eNBs, while the communication device is called user equipment (UEs). The UEs may be devices such as mobile phones and computer systems. Moreover, the network and the UE can be considered as a transmitter or receiver for the uplink (UL), for example, according to the transmission direction. In this case, the network is considered a transmitter and the UE is considered a receiver.

  Please refer to FIG. 2, which represents a schematic diagram of a communication device 20 according to an embodiment of the present invention. The communication device 20 may be the communication device shown in FIG. 1, and includes a processor 200, a computer-readable recording medium 210, a communication interface unit 220, and a control unit 230. The computer readable recording medium 210 may be any data storage device that includes the program code 214. It is therefore read and processed by the processor 200. Examples of computer readable recording media 210 include subscriber identity module (SIM), read only memory (ROM), random access memory (RAM), CD-ROMs, magnetic tape, optical data storage device, and carrier wave ( Data transmission over the Internet). The control unit 230 controls operations and states related to the communication interface connection unit 220 and the communication device 20 according to the processing result of the processor 200. The communication interface connection unit 220 is preferably a wireless transceiver, and thus exchanges wireless signals with the network.

  Please refer to FIG. 3, which represents a schematic diagram of multiple communication protocol layers of an LTE system applied by program code 214 according to an embodiment of the present invention. The program code 214 includes a multiplex communication protocol layer program code from the top to the bottom, the resource control (RRC) layer 300, the packet data convergence protocol (PDCP) layer 310, the radio link control (RLC) layer 320, the logic A channel management unit 325, a medium access control (MAC) layer 330 and a physical (PHY) layer 340.

The RLC layer 320 can operate in three types of RLC components: transparent mode (TM), unacknowledged mode (UM) and acknowledged mode (AM) types. A logical channel is defined between the RLC layer 320 and the MAC layer 330 and is managed by the logical channel management unit 325 for packet data transfer, channel polarization, channel data rate, and the like. The MAC layer 330 is capable of buffer status reporting (BSR) and reports which function obtains the amount of RLC data available for uplink transmission. The RRC layer 300 extracts reconfiguration information from a dedicated signal transmitted by the network, and outputs the extracted reconfiguration information to a lower layer. In the LTE system, the RRC connection reconfiguration message uses “RLC Config” and “Logical Channel Config” information elements (IEs) used as reconfiguration information for the RLC layer 320 and the logical channel, respectively. When the network used for dedicated signaling attempts to reconfigure the radio link control operation of the communication device 20, the RRC connection reconfiguration message including the “RLC Config” and / or “Logical Channel Config” IE in the communication device 20 Can be sent. The RRC layer 300 extracts IE (s) from the RRC connection reconfiguration message, and further extracts parameter values such as timer and counter values. That extracted value is then submitted to the RLC layer 320 and / or logical channel management unit 325 for parameter resetting. In the LTE system, parameters (eg, timer, counter, variable) used in the RLC layer 320 and the logical channel management unit 325 are “RLC configuration” and / or “logical channel configuration” specified in Non-Patent Document 2. ”IEs.

  In the following embodiments, when reset values are obtained, a process that does not immediately start using reset values for parameters in use is provided to prevent system errors. The parameters in the following embodiments are considered as parameters used for the RLC layer or logical channel, and are also considered as RLC related parameters.

Please refer to FIG. 4, which shows a flowchart of a process 40 according to an embodiment of the present invention. Process 40 is used for RLC reconfiguration for a UE or wireless communication system. Process 40 is compiled into program code 214 and includes the following steps:
Step 400: Start.

Step 410: When a parameter is in use, receive a dedicated signaling that includes a reset value associated with the parameter.
Step 420: Start using the reset value when the parameter is next reused.
Step 430: End.

  If, according to process 40, dedicated signaling is received during use of a parameter, the reset value will begin to be used the next time the parameter is reused. In other words, the UE first waits for the end of the parameter currently in use, and sets the parameter using the reset value when the parameter is used again.

  For example, a timer is taken as an example. The UE sets the timer according to the reset value when the timer is next started or restarted. That is, the UE obtains a reset value before the timer expires, and then applies the reset value to the timer when execution resumes after the timer expires. The same concept is also introduced into the counter. The UE sets the counter according to the reset value when the counter is next reset to a predetermined initial value (eg, default value).

  As can be seen from process 40, the UE does not unconditionally start using the reset value immediately when the reset value is received. Therefore, it is not easy to change the value of the parameter being used easily, thereby preventing a system error.

Please refer to FIG. 5, which represents a flowchart of a process 50 according to an embodiment of the present invention. Process 50 is used for RLC reconfiguration for UEs in a wireless communication system and is applied to parameters such as timers / counters with initial values that are typically set to zero and target values that can be set or reconfigured by the network. The Furthermore, the remaining values are the difference values between the current value of the parameter in use and the current expected target value. The term “in use” of a timer or counter means that the timer is running or the counter is counting. The target value of the timer is the end time, while the target value of the increasing / decreasing counter is the maximum / minimum value that the counter can achieve. Process 50 can be compiled into program code 214 and includes the following steps:
Step 500: Start.
Step 510: When a parameter is in use, a dedicated signal including a reset value associated with the parameter is received.
Step 520: Determine use of the parameter in use according to the reset value and at least one of the current value and the remaining value.
Step 530: End.
According to the process 50, the UE determines the use of the parameter in use, the current value in use of the parameter and the value remaining after the reset value is received according to the reset value. More specifically, whether the UE obtains a relationship between the reset value and the associated value (eg current value only or both current value and remaining value) and maintains the use of parameters accordingly. Or decide whether to modify.

Please refer to FIG. 6, which represents a flowchart of a process 60 according to an embodiment of the present invention. Process 60 is created based on the concept of process 50 for determining use of a running timer. Assume that the running timer has a target time z and a remaining time y and that a reset value x has been received during the execution of the timer. In addition, the timer performs an increasing time count, so the current time of the timer is (z−y). Process 60 includes the following steps:
Step 600: Start.
Step 605: If a timer whose target value is z is executed at (zy), x is acquired.
Step 610: Determine whether x is less than y. If so, step 630 is performed, otherwise step 620 is performed.
Step 620: Determine whether x is greater than (z−y). If so, step 640 is performed, otherwise step 660 is performed.
Step 630: Restart timer using target time x, then perform step 670.
Step 640: Restart timer at (x- (z-y)).
Step 650: If the timer is started or restarted, start the timer using the target time x and then perform step 670.
Step 660: Continue execution of the timer.
Step 670: End.
As can be seen from the process 60, the UE uses the reset value x immediately by restarting the timer with the value x if x <y. The description (x <y) means that the new execution time of the timer is less than the current remaining time. Therefore, the length of the timer execution time is limited to x. Furthermore, the UE may perform an action specified for the end of the timer at the target time z. If x> (z−y), the UE restarts the timer with a value of [x− (z−y)], which is the difference between the execution time and the current value. After the timer restarted with [x- (z-y)] expires, the UE starts using the value x when the timer is next started or restarted. If x> y and x <(z−y), the UE does not modify the use of the timer and continues to run that timer.

  Therefore, the UE does not immediately unconditionally reset the target value with a value from z to x, so that if x is greater than y, the target time z timer will change the remaining time from y to x. Prevent the wrong state of stretching. Through process 60, the running timer is properly reset to prevent system errors.

Please refer to FIG. 7, which represents a flow chart of process 70, in accordance with an embodiment of the present invention. Process 70 is created based on the concept of process 50 in order to determine the usage of the running counter. Assume that the running counter has a target number z ′ and a current number y ′ and a reset value x ′ is received. In addition, the timer performs an incrementing count, so the target number z ′ is the maximum value of the counter. Process 70 includes the following steps:
Step 700: Start.
Step 705: If the counter of the target value z ′ counts with y ′, x ′ is acquired.
Step 710: Determine whether x ′ is less than y ′. If so, step 720 is performed, otherwise step 730 is performed.
Step 720: Reset the counter to the initial value using the target number x ', and then perform Step 740.
Step 730: The target number is changed from z ′ to x ′, and the execution of the counter is continued.
Step 740: End.
As can be seen from the process 70, the UE resets the counter to an initial value (eg, 0 or a predetermined value) and uses x ′ as the maximum value if x ′ <y ′. Furthermore, the UE performs the previously specified action on the counter that has reached the maximum value z ′. Otherwise, the UE continues to run the counter using x ′ as the maximum value. Process 70 prevents the immediately applied value from becoming greater than a predetermined maximum value.

Please refer to FIG. 8, which shows a flowchart of a process 80 according to an embodiment of the present invention. Process 80 is used for RLC reconfiguration for UEs in a wireless communication system. Process 80 is compiled into program code 214 and includes the following steps:
Step 800: Start.
Step 810: If a parameter is in use, receive a dedicated signaling including a reset value associated with the parameter.
Step 820: If the reset value is a predetermined value or a character representing “infinity”, use of the parameter is stopped.
Step 830: End.
In accordance with process 80, the UE stops the parameters in use when an RRC-specific signaling is received that includes an “infinite” reconfiguration value. That “infinite” value can cause serious system errors if applied immediately. For example, in order to solve the following problem, the UE stops a running timer that is used to count the validity period of retransmission when the timer reset value is “infinite”. If the UE immediately applies the received “infinite” value to the running timer that is being used to count the validity period of the retransmission, the timer cannot be stopped. This means that the UE can withstand very long retransmission outages.

Please refer to FIG. 9, which represents a flowchart of a process 90 according to an embodiment of the present invention. Process 90 is used for reconfiguration related to the parameter of the SN field length of the RLC entity for the UE of the wireless communication system. The SN field length is a parameter for managing the length of the sequence number in the RLC layer, and determines a substantially accurate RLC transmission / retransmission. For example, the UE predicts the SN of the PDU. Process 90 is compiled into program code 214 and includes the following steps:
Step 900: Start.
Step 910: If the SN field length is in use, receive dedicated signaling including a reset value associated with the SN field length.
Step 920: Reconstruct or reset the RLC entity, apply the reset value to the SN field length, and set the RLC entity.
Step 930: End.
If, according to process 90, the UE receives a dedicated signaling such as an RRC connection reconfiguration message to change the value of the SN field length of the RLC entity, the UE resets / reconstructs the RLC entity and the SN field length The RLC entity is set by applying the reset value to. Thus, the UE resets or reconstructs the RLC entity if the SN field length value is indicated by the network being changed (eg resized from 10 to 5 bits).

  Process 90 is also applicable to resetting the parameters of any logical channel. If the UE receives a dedicated signal containing a reconfiguration value to change any parameter in the logical channel configuration IE of the RLC entity, the UE resets / reconfigures the RLC entity and reconfigures it. Set the RLC entity by applying the value to the parameter.

  In process 90, entity reset / reconstruction prevents RLC entity failure caused by parameter reconfiguration.

Please refer to FIG. 10, which represents a flowchart of a process 1000, according to an embodiment of the present invention. Process 1000 is used for RLC reconfiguration for a UE of a wireless communication system. Process 1000 is compiled into program 214 and includes the following steps:
Step 1005: Start.
Step 1010: If a logical channel is in use, receive a dedicated signaling that includes a reset value associated with the logical channel parameter.
Step 1020: If the reset value is extracted from the dedicated signaling, determine whether the logical channel priority determination function and the BSR report are active.
Step 1030: If it is determined that neither the logical channel priority determination function or the BSR report is active, start using the reset value immediately.
Step 1040: End.
According to process 1000, the UE determines whether the MAC layer logical channel prioritization function and BSR reporting are active if the reconfiguration value is extracted from dedicated signaling received during use of the logical channel parameters. To decide. For example, the reconfiguration value can be extracted from the logical channel configuration IE included in the RRC connection reconfiguration message. The UE then immediately starts using that value if neither the logical channel prioritization function nor the BSR report is active. Process 1000 prevents the UE from erroneously modifying the priority of the logical channel in use or preventing the amount of packets for the BSR from being calculated.

Please refer to FIG. 11, which represents a flowchart of a process 1100, in accordance with an embodiment of the present invention. Process 1100 is used for RLC reconfiguration for UEs in a wireless communication system. Process 1100 is compiled into program code 214 and includes the following steps:
Step 1105: Start.
Step 1110: If a logical channel parameter is in use, receive a dedicated signaling including a reset value associated with the logical channel parameter.
Step 1120: If neither RLC reset or RLC reconfiguration is required, start using the reset value before the next logical channel priority determination function is executed.
Step 1130: End.

  In accordance with process 1100, the UE is not required to perform either RLC reset or RLC reconfiguration when a reconfiguration value associated with a logical channel parameter, eg, a parameter of an RLC entity logical channel configuration IE, is received. In this case, the use of the reset value is started before the logical channel priority determination function is executed next time. Using the reset value before the logical channel priority determination function is executed next ensures that the logical channel priority determination function is functioning according to the latest requirements of the network. To do.

  The concept of process 1100 is also applicable to the following cases. If the UE receives a dedicated signaling that includes a reconfiguration value of a logical channel group parameter in the logical channel configuration IE of the RLC entity, then the UE will then BSR if no reset / reconfiguration of the RLC entity is required. Start using reset values when reporting is performed. Since the BSR report is used by the network to know how much RLC data the UE is going to send in the next transmission, the UE will have a new value in time to generate the correct BSR. Need to apply.

Please refer to FIG. 12, which represents a flowchart of a process 1200 according to an embodiment of the present invention. Process 1200 is used for RLC reconfiguration for a UE of a wireless communication system. Process 1200 is compiled into program code 214 and includes the following steps:
Step 1205: Start.
Step 1210: If a parameter is in use, receive an RRC connection reconfiguration message including a reconfiguration value associated with the parameter.
Step 1220: Determine whether the RRC connection reconfiguration message does not include the handover function IE and is not a message of the RRC connection reconfiguration procedure following the RRC reconfiguration procedure.
Step 1230: Determine that the RRC connection reconfiguration message is invalid and the RLC reconfiguration is unsuccessful.
Step 1240: Perform RRC connection reconfiguration procedure and perform Step 1260.
Step 1250: Do not immediately start using reset values for parameters in use.
Step 1260: End.
If, according to process 1200, the UE receives an RRC connection reconfiguration message that does not contain any handover information and the associated RRC reconfiguration procedure does not follow the RRC reconfiguration procedure, the UE will invalidate the RRC connection reconfiguration message. And determine that RLC reconfiguration is unsuccessful. Next, the UE performs an RRC connection reconfiguration procedure to recover the failure of the RLC connection. Otherwise, the RRC reconfiguration message is determined to be valid and the reconfiguration value is not immediately started to use for the parameter in use. Details of step 1250 can be found in process 40-1100.

  The RRC connection reconfiguration message including no handover information but including a reconfiguration value does not include the “mobility control information” IE, but is an RRC connection reconfiguration message including the logical channel configuration or the RLC-configuration IE. possible. The “mobility control information” is used for changing a cell, a carrier frequency, a bandwidth, and the like. If the UE applies only the RLC parameter / logical channel parameter without applying the “mobility control information” setting, the UE cannot properly receive the packet after the RRC connection reconfiguration procedure. Therefore, the UE considers such RRC connection reconfiguration message invalid.

  Please refer to FIG. 13, which represents a schematic diagram of a communication device 1300 according to an embodiment of the present invention. The communication device 1300 may be the communication device shown in FIG. 1 and includes a receiving unit 1310, a reconfiguration unit 1320, a reconstruction and reset unit 1330, and a decision unit 1340. The receiving unit 1310 is used to receive a dedicated signal DSIG including a reset value REV corresponding to the parameter PAR when the parameter PAR is in use. The parameter PAR corresponds to the RLC layer or logical channel as described above. The rebuild and reset unit 1330 rebuilds or resets the RLC entity in the RLC layer and issues an instruction signal ISC1 to the reset unit 1320 if neither RLC reset nor RLC rebuild is required. When the determination unit 1340 determines that neither the logical channel priority determination function of the logical channel or the BSR report is active, it issues an indication signal ISC2. Further, the decision unit 1340 may receive the dedicated signaling if the dedicated signaling DSIG is an RRC connection reconfiguration message that does not include any handover information IE and is not a message of the RRC reconfiguration procedure that follows the RRC reconfiguration procedure. DSIG is invalid and RLC reconfiguration is determined to be unsuccessful. Accordingly, the determination unit 1340 issues the instruction signal ISC3.

  The resetting unit 1320 is mainly used to not immediately start using the resetting value REV for the RLC related parameters in use when the resetting value REV is extracted from dedicated signaling. In accordance with ISC1, the reconfiguration unit 1320 determines that if a parameter (eg, a logical channel config IE parameter) is associated with a logical channel, the reconfiguration value REV before the logical channel priority determination function is next executed. You can start using. Alternatively, if the parameter is associated with a logical channel group (e.g., a logical channel group parameter), the reset unit 1320 can then reset the reset value before a buffer status report is performed according to the indication signal ISC1. Start using PAR. According to the indication signal ISC2, the resetting unit 1320 immediately starts using the resetting value REV when the parameter PAR is associated with the logical channel.

  In accordance with the indication signal ISC3, the reconfiguration and reset unit 1330 performs an RRC reconfiguration procedure to reconfigure or reset the RLC entity, and returns the failed RLC reconfiguration to normal.

  Since the communication device 1300 can implement the processes 40-1200, detailed operations can be referred to in the above paragraph.

  In conclusion, the exemplary methods and measures do not immediately start using reset values for RLC-related parameters in use, so the concept of preventing errors or erroneous BSR reporting in the RLC layer, logical channel management. Provided to publish.

DESCRIPTION OF SYMBOLS 10 ... Wireless communication system 20 ... Communication apparatus 40 ... Process 50 ... Process 70 ... Process 80 ... Process 90 ... Process 200 ... Processor 210 ... Computer-readable recording medium 214 ... Program code 220 ... Communication interface connection unit 230 ... Control unit 300 ... Resource control (RRC) layer 310 ... Packet data convergence protocol (PDCP) layer 320 ... Radio link control (RLC) layer 325 ... Logical channel management unit 330 ... Medium access control (MAC) layer 340 ... Physical (PHY) layer 400 ... Step 410 ... Step 420 ... Step 430 ... Step 500 ... Step 510 ... Step 520 ... Step 530 ... Step 600 ... Step 605 ... Step 610 ... Step 620 ... Step 630 ... Step 64 ... Step 650 ... Step 660 ... Step 670 ... Step 700 ... Step 705 ... Step 710 ... Step 720 ... Step 730 ... Step 740 ... Step 800 ... Step 810 ... Step 820 ... Step 830 ... Step 900 ... Step 910 ... Step 920 ... Step 930 ... Step 1000 ... Process 1005 ... Step 1010 ... Step 1020 ... Step 1030 ... Step 1040 ... Step 1100 ... Process 1105 ... Step 1110 ... Step 1120 ... Step 1130 ... Step 1200 ... Process 1205 ... Step 1210 ... Step 1220 ... Step 1230 ... Step 1240 ... Step 1250 ... Step 1260 ... Step 1300 ... Communication device 1310 ... Receiving unit 320 ... reset unit 1330 ... reconstruction and reset unit 1340 ... determination unit

Claims (12)

A method of radio link control (RLC) reconfiguration for a communication device of a wireless communication system:
If a RLC-related parameter is in use, receiving a dedicated signaling including a reset value corresponding to the RLC-related parameter; and if the reset value is extracted from the dedicated signaling, Do not immediately start using the reset value for RLC-related parameters in use:
A method comprising the steps of: If the reset value is extracted from the dedicated signaling, the method does not immediately start using the reset value for the RLC-related parameter in use:
The reset value is then used when the RLC related parameter is reused, or if the reset value is a character representing a predetermined value or “infinite”, the use of the RLC related parameter Or using the RLC-related parameter in use according to at least one of the reset value and the current value of the RLC-related parameter and the remaining value of the RLC-related parameter. Determining the quantity,
Including
The remaining value is a value of a difference between the current value and a target value of an RLC-related parameter corresponding to the current value,
The method of claim 1. The method of claim 2, wherein the RLC-related parameter is a timer or a counter, and the step of initiating use of the reset value when the reset value is next reused comprises: Or setting the timer or the counter according to the reset value when the counter is next started or restarted, or when the counter is next reset to a predetermined initial value. A method characterized by. The method of claim 1, wherein the dedicated signaling is a radio resource control connection reconfiguration message. 3. The method of claim 2, wherein the RLC-related parameter in use is a running timer, according to the reset value and at least one of the current value and the remaining value. Determining the amount of RLC-related parameters in use;
If the reset value is less than the remaining value, restarting the timer with the reset value;
If the reset value is greater than the current value, restarting the timer with a first value that is the reset value minus the current value;
Starting the use of the reset value when the timer is next started or restarted after the timer restarted with the first value has expired; and Continuing execution of the timer if greater than the remaining value;
Including a method. 3. The method of claim 2, wherein the RLC-related parameter in use is a running counter, wherein the reset value and the current value and the remaining value are Determining the usage of the RLC-related parameters in use according to at least one of:
Resetting the counter to an initial value and, if the reset value is smaller than the current value, using the reset value as the target value; and using the reset value as the target value; Continuing execution of the counter if the set value is greater than or equal to the current value;
Including methods. The method of claim 1, wherein the RLC-related parameter is a sequence number length parameter or a parameter associated with at least one logical channel, wherein the reconfiguration value is the If extracted from dedicated signaling, the steps that do not immediately start using the reset value for the RLC-related parameter in use are:
Reconfiguring or resetting the RLC entity of the radio link control layer; and configuring the RLC entity with the reconfiguration value;
Including a method. The method of claim 1, wherein the RLC related parameter is a parameter associated with at least a logical channel, and when the reset value is extracted from the dedicated signaling, The steps that do not immediately start using the reset value for RLC-related parameters in use are:
Determining whether the logical channel priority determination function and the buffer status reporting function of the logical channel are active if the reset value is extracted from the dedicated signaling; and the logical channel priority determination If no function or buffer status reporting function is active, immediately start using the reset value;
Including a method. The method of claim 1, wherein the RLC related parameter is a parameter associated with at least a logical channel, and the reconfiguration value is extracted from the dedicated signaling, Here are the steps that don't start using the settings immediately:
If neither an RLC reset or RLC re-establishment is required, starting to use the reset value before the logical channel priority determination function of the logical channel is next executed;
Including a method. The method of claim 1, wherein the RLC-related parameter is a parameter associated with a logical channel group, and wherein the reset value is extracted from the dedicated signaling, The steps that do not immediately start using the reset value for RLC-related parameters in use are:
If neither RLC reset or RLC reconfiguration is required, starting to use the reset value when the buffer status reporting function is next executed;
Including a method. The method according to claim 1, wherein the dedicated signaling is invalid if the dedicated signaling is a radio resource control (hereinafter referred to as RRC) reconfiguration message that does not include any handover function information element. And determining that the RLC reconfiguration is unsuccessful, wherein the RRC reconfiguration message is not a message of an RRC reconfiguration procedure following an RRC reconfiguration procedure; and step of performing the RRC reconstruction procedure to be back failures RLC reconfiguration correctly;
A method characterized by. A communication device of a wireless communication system for accurately performing radio link control (RLC) reconfiguration:
A computer readable recording medium for storing program code corresponding to the process; and a processor coupled to the computer readable recording medium for processing the program code to perform the process;
Including
The process is characterized by the method steps recited in claim 1,
Communication device.

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