CN103369509A - Buffer state reporting method and terminal equipment - Google Patents
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Abstract
The invention discloses a buffer state reporting method and terminal equipment. When a radio link control (RLC) entity or packet data convergence protocol (PDCP) entity of the terminal equipment has new uplink data to be transmitted and conditions of a regular buffer state report (BSR) and a periodic BSR, a new buffer state report used for indicating the uplink buffer data amount information of the terminal equipment is triggered, or a regular BSR is triggered when the RLC entity or the PDCP entity of the terminal equipment has new uplink data to be transmitted, or the time length of a retransmission BSR timer is set to be less than or equal to a minimum cycle of time division duplex configuration of a time division duplex long term evolution system. According to the improved buffer state reporting method disclosed by the invention, the timeliness and accuracy of uplink data amount obtained by a network side can be raised, thus the network side timely understands the real data amount condition of the terminal equipment, and signaling overload is avoided.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of reporting cached state method and terminal equipment.
Background technology
Present Long Term Evolution (LTE, Long Term Evolution) technology, micro-wave access to global intercommunication (Wimax, Worldwide Interoperability for Microwave Access), super mobile broadband (UMB, Ultra Mobile Broadband) there are two kinds of duplex modes in system: Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplex) mode and time division duplex (TDD, Time Division Duple) mode.Under the FDD mode, Uplink/Downlink adopts different frequency bands to carry out simultaneously transfer of data, and under the TDD mode, Uplink/Downlink uses identical frequency band timesharing to carry out transfer of data.
Carrying out in the wireless system of transfer of data as unit take radio frames (Radio Frame), the Uplink/Downlink of radio open transmission generally carries out the transmission of data take radio frames as unit, wherein, each radio frames is comprised of several subframes (Subframe).For the LTE system, subframe all forms take OFDM (Orthogonal Frequency Division Multiplexing) symbol (Symbol) as base unit, and each radio frames is comprised of 10 subframes.
The resource of the up/down row subframe of FDD system is distributed relatively independent, namely can carry out respectively the resource distribution to descending sub frame and sub-frame of uplink.Can according to certain ratio some subframes of radio frames be divided into sub-frame of uplink and descending sub frame according to the needs of business in the TDD system, the ratio of general TDD system uplink subframe and descending sub frame number has some kinds, to satisfy the demand of different service types.According to the demand of different regions type of service, select suitable up-downgoing proportional arrangement to be conducive to improve the spectrum efficiency of TDD system.Such as, for the professional many areas of downloading data, just can select the many configurations of descending sub frame; For uploading professional many areas, just can select the many configurations of sub-frame of uplink; For the area that upper download traffic carrying capacity compares balance, just can select the similar identical proportional arrangement of ascending-descending subframes.
In present LTE TDD (the being called for short TD-LTE) system, the uplink-downlink configuration of TDD system has been set 7 kinds of modes, as shown in table 1 below.A radio frames has comprised 10 subframes, and subframe numbers is labeled as respectively: 0,1,2,3,4,5,6,7,8,9, and wherein, " D " represents that this subframe is descending sub frame; " U " represents that this subframe is sub-frame of uplink; " S " represents that this subframe is special subframe, and namely this subframe has comprised downlink transfer part, protection interval and uplink part.
Existing uplink-downlink configuration tabulation in the table 1:TD-LTE system
Table 1 can find out that downlink transfer accounts for the percentage of time from 40% to 90% of all transmission, and such up/down row subframe ratio setting mainly is to consider that downstream data traffic in the present multimedia service is usually more than the characteristics of upstream data service.
In the existing LTE technology, network side informs by broadcast system message (SI, System Information) which kind of TDD up/down row configuration this residential quarter of all subscriber equipmenies (UE, User Equipment) in the residential quarter uses.The configuration of How to choose TDD up/down row then is the network internal problem of implementation, wherein may relate to the data of operator's long-time statistical, current up/down row business datum amount to be passed and other tactic factors that network side is known.In order further to reduce propagation delay time, save the UE energy, increase throughput of system, promote network performance, a kind of method of dynamic change TDD up/down row configuration is suggested, wish to make TDD up/down row configuration can bring into play to greatest extent like this advantage of TDD system flexible configuration up/down row subframe ratio along with the traffic carrying capacity real time altering, the overriding challenge that this method faces is the up/down row traffic carrying capacity of network side need to know present network implementation the time.Reporting cached state (the Buffer Status Reporting) mechanism that adopts at present is a kind of mechanism that reports of logic-based channel priority, this just causes the network side can not be in time and understand accurately upstream data amount among the UE, thereby may adopt irrational TDD up/down row configuration.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of reporting cached state method and terminal equipment, and the network side that the existing reporting cached state mode of solution causes is known promptness and the not good problem of accuracy of upstream data amount.
In order to solve the problems of the technologies described above, the invention provides a kind of reporting cached state method, wherein, arrive new up data to be transferred in the Radio Link of terminal equipment control (RLC) entity or PDCP (PDCP) entity and do not satisfy conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR), triggering is used to indicate the new buffer status report of the up buffer data size information of described terminal equipment; Trigger conventional BSR when perhaps, arriving new up data to be transferred in the Radio Link of terminal equipment control (RLC) entity or PDCP (PDCP) entity; Perhaps, be set the minimum period that the duration that retransmits the BSR timer is less than or equal to the time division duplex configuration of time division duplex long evolving system.
Further, said method can also have following characteristics:
Arrive new up data to be transferred in the Radio Link of described terminal equipment control (RLC) entity or PDCP (PDCP) entity and do not satisfy conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR), further judge that triggering was used to indicate the new buffer status report of the up buffer data size information of described terminal equipment when the filling bit number of filling BSR added its son head big or small less than long BSR.
Further, said method can also have following characteristics:
Up buffer data size information refers to the data volume through all up data to be transferred in the upper row cache after the transmission of Transmission Time Interval, perhaps passes through the data volume of described new up data to be transferred after the transmission of Transmission Time Interval.
Further, said method can also have following characteristics:
Described new buffer status report is got involved control control (MAC) element (CE) carrying by media.
Further, said method can also have following characteristics:
The media that carry described new buffer status report are got involved MAC area flag symbol territory of control control element by a numeric representation in the Binary Zero 1011 to 11000.
Further, said method can also have following characteristics:
After described terminal equipment sends described new buffer status report, start or restart and retransmit BSR timer and cycle BSR timer.
In order to solve the problems of the technologies described above, the present invention also provides a kind of terminal equipment, comprises reporting cached state optimization process module; Wherein, described reporting cached state optimization process module, be used for arriving new up data to be transferred and not satisfying conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR), triggering is used to indicate the new buffer status report of the up buffer data size information of described terminal equipment at Radio Link control (RLC) entity of described terminal equipment or PDCP (PDCP) entity; Perhaps, when arriving new up data to be transferred, (RLC) entity or PDCP (PDCP) entity trigger conventional BSR for controlling at the Radio Link of described terminal equipment; Perhaps, be used for arranging the minimum period that the duration that retransmits the BSR timer is less than or equal to the time division duplex configuration of time division duplex long evolving system.
Further, above-mentioned terminal equipment can also have following characteristics:
Reporting cached state optimization process module, also be used for arriving new up data to be transferred and not satisfying conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR) at Radio Link control (RLC) entity or PDCP (PDCP) entity, further judge that triggering was used to indicate the new buffer status report of the up buffer data size information of described terminal equipment when the filling bit number of filling BSR added its son head big or small less than long BSR.
Further, above-mentioned terminal equipment can also have following characteristics:
Up buffer data size information refers to the data volume through all up data to be transferred in the upper row cache after the transmission of Transmission Time Interval, perhaps passes through the data volume of described new up data to be transferred after the transmission of Transmission Time Interval.
Further, above-mentioned terminal equipment can also have following characteristics:
Reporting cached state optimization process module also is used for after described terminal equipment sends described new buffer status report, starts or restart to retransmit BSR timer and cycle BSR timer.
The improved reporting cached state method that this programme proposes can improve promptness and accuracy that network side is known the upstream data amount, makes network side in time understand the True Data amount situation of terminal equipment, and is unlikely to cause occurring the signaling overload.
Description of drawings
Fig. 1 is a kind of mode schematic diagram that triggers conventional BSR;
Fig. 2 is the mode schematic diagram that the second triggers conventional BSR;
Fig. 3 is reporting cached state method schematic diagram;
Fig. 4 is reporting cached state method schematic diagram in the specific embodiment one;
Fig. 5 is reporting cached state method schematic diagram in the specific embodiment two.
Embodiment
In the cellular network, usually ascending resource or downlink resource all are to do scheduling by the network side unification, downlink data sends to UE by network side, therefore network side is known the data volume of downlink data, but upstream data sends to network side by the UE side, if UE does not notify network side, network side can't be known the data volume of upstream data and the time that upstream data arrives, and sends upstream data and can't dispose suitable ascending resource for UE.In LTE, by reporting cached state mechanism, UE informs network side, and current to have how many upstream datas to have to be sent, and the assisted network side is distributed ascending resource.In the LTE technology, network side will be safeguarded the priority between the different UEs in the residential quarter, also will safeguard simultaneously the priority of the inner Different Logic channel of each UE, so the BSR mechanism of LTE is based on priority of logical channels.
Network side is two timers of UE configuration by RRC (Radio Resource Control) signaling: retransmit BSR timer (retxBSR-Timer) and cycle BSR timer (periodicBSR-Timer).
There are three kinds of BSR modes: conventional BSR (Regular BSR), cycle (Periodic BSR) and filling (Padding BSR).
In the RLC of UE entity or PDCP entity, there is new upstream data to become up data to be transferred, and the priority of the logic channel under the described new up data to be transferred is higher than buffer to be had when not having up data to be transferred in the logic channel of up data to be transferred or the current cache device before this, will trigger conventional BSR.Illustrate, be illustrated in figure 1 as the schematic diagram of a kind of Regular of triggering BSR, 101 is up buffer, wherein have the data to be transferred of all up logic channels (LC, Logical Channel), the data to be transferred of LC2 and LC3 is stored in the buffer 101 before this, and the priority of LC1 is higher than LC2, the priority of LC2 is higher than LC3, has new data to arrive among the current LC1, will trigger Regular BSR.Be illustrated in figure 2 as the schematic diagram that the second triggers Regular BSR, 201 is up buffer, wherein has the data to be transferred of all up logic channels, and the priority of LC1 is higher than LC2, and the priority of LC2 is higher than LC3.Do not have before this data to be transferred in the buffer, current LC3 has newly arrived data to be transferred, owing to do not have data to be transferred in the buffer, will trigger Regular BSR this moment.The third situation that triggers Regular BSR is when re-transmission BSR timer expiry and UE have up data to be transferred, also will trigger Regular BSR.
Be Periodic BSR and Padding BSR for other two kinds of BSR.The trigger condition of Periodic BSR is cycle BSR timer expiry, the trigger condition of Padding BSR then is because current transmission time interval (TTI, Transmission Time Interval) Medium Access Control (MAC) Protocol Data Unit (the MAC PDU that the MAC layer creates in, MAC Protocol Data Unit) do not comprise Regular BSR or Periodic BSR in, when simultaneously wherein filling bit (Padding bit) adds its MAC big or small more than or equal to a BSR MACCE, will trigger Padding BSR.The reason of above-mentioned setting is that filling bit does not have any amount of information, and BSR is placed wherein to reduce the wasting of resources.
A MAC PDU for the MAC layer creates can only carry a BSR, and for example working as certain TTI not only has Regular BSR to be triggered, and Periodic BSR also is triggered simultaneously, can only send so a BSR.As can be seen from Figure 1, if current have the priority of the logic channel LC1 that new data to be transferred arrives identical with LC2 or LC3, when perhaps priority is lower than among LC2 and the LC3 any one, can't trigger reporting of Regular BSR, in order to reduce the signalling of eating dishes without rice or wine, it is too little that network can not arrange the value of cycle BSR timer and re-transmission BSR timer usually, and filling bit usually can be not too many, usually only enough report the data to be transferred amount of a logic channel group, this must be the highest logic channel group of priority.Dispose the method that promotes network performance for hope by dynamically adjusting TDD, above-mentioned BSR reports mechanism and unfavorable.
As shown in Figure 3, the reporting cached state method that this programme provides comprises: arrive new up data to be transferred in the Radio Link of terminal equipment control (RLC) entity or PDCP (PDCP) entity and do not satisfy conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR), triggering is used to indicate the new buffer status report of the up buffer data size information of described terminal equipment;
Trigger conventional BSR when perhaps, arriving new up data to be transferred in the Radio Link of terminal equipment control (RLC) entity or PDCP (PDCP) entity;
Perhaps, be set the minimum period that the duration that retransmits the BSR timer is less than or equal to the time division duplex configuration of time division duplex long evolving system.
Arrive new up data to be transferred in the Radio Link of described terminal equipment control (RLC) entity or PDCP (PDCP) entity and do not satisfy conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR), further judge that triggering was used to indicate the new buffer status report of the up buffer data size information of described terminal equipment when the filling bit number of filling BSR added its son head big or small less than long BSR.
Up buffer data size information refers to the data volume through all up data to be transferred in the upper row cache after the transmission of Transmission Time Interval, perhaps passes through the data volume of described new up data to be transferred after the transmission of Transmission Time Interval.
Described new buffer status report is got involved control control (MAC) element (CE) carrying by media, the size that these media that carry described new buffer status report are got involved the control control element is a byte, and the area flag symbol territory of its MAC head is by a numeric representation in the Binary Zero 1011 to 11000.
After described terminal equipment sends described new buffer status report, start or restart and retransmit BSR timer and cycle BSR timer.
Do not have ascending resource to send described new buffer status report when UE is current, trigger sending dispatch request (Scheduling Request) flow process.
The terminal equipment that said method is corresponding comprises reporting cached state optimization process module, and this module is carried out the corresponding executive mode of describing in the said method, repeats no more herein.
Describe this programme in detail below by specific embodiment.
Specific embodiment one
The schematic flow diagram of specific embodiment as shown in Figure 4.
S401: new up data to be transferred arrives.
When the RLC of UE entity or PDCP entity have upstream data to become data to be transferred, be expressed as new up data to be transferred and arrive.
For the RLC entity, not yet be not assembled into RLC service data unit (SDU, Service Data Unit) or its segmentation of RLC data PDU; The data to be transferred that the status PDU (STATUS PDU) that the RLC data PDU that wait for to retransmit and being triggered need to be transmitted at next transmission opportunity or its a part all are considered to rlc layer.
For the PDCP entity, the PDCP SDU that is not yet processed by the PDCP layer or processed by PDCP but also do not submit to the PDCP PDU of lower floor; Perhaps when harmless the switching, submitted to lower floor but do not received successfully the PDCP SDU of acknowledge or the data to be transferred that PDCP PDU is considered to the PDCP layer.
When having upstream data to become above-mentioned rlc layer or PDCP layer data to be transferred among the UE, represent that then new up data to be transferred arrives.
S402: the MAC CE that generates the up buffer data size information that is used to indicate UE is called new data and arrives MAC CE.
It is a byte that new data arrives MAC CE size, the content of wherein carrying is the data volume through all up data to be transferred in the upper row cache after the transmission of Transmission Time Interval, perhaps passes through the data volume of described new up data to be transferred after the transmission of Transmission Time Interval.If content is for the former, then need to represent through after this TTI transmission the data volume size in the buffer memory; If content is the latter, then need to represent through after this TTI transmission the size of newly arrived data volume.Because the ascending resource of possible network side dispensing is many, also can transmit a part of newly arrived data.
New data arrives 8 bits among the MAC CE can represent 0～511 totally 512 grades, can adopt the buffer size grade that original BSR is corresponding in the agreement 36.321, also can expand to use to original corresponding table, outside 64 grades of former table, again data volume is divided, also can specify new correspondence table.Described new data arrives a numeric representation in MAC the LCID territory use Binary Zero 1011 to 11000 reporting MAC CE.
If this TTI divide ascending resource be enough to hold all up data to be transferred, comprise newly arrived data to be transferred, then needn't generate MAC CE, need not carry out reporting cached state yet, subsequent step does not need continue to carry out, flow process finishes.
S403: judge whether to satisfy the trigger condition of Regular BSR or Periodic BSR, if so, execution in step S404, otherwise execution in step S40.
S404: trigger Regular BSR or Periodic BSR, the deletion new data arrives MAC CE, and flow process finishes.
S405: judge whether to satisfy the trigger condition of Padding BSR, if so, execution in step S406, otherwise carry out S408.
S406: judge whether the filling bit number adds its size of sub more than or equal to long BSR, if so, execution in step S407, otherwise execution in step S408.
S407: BSR is filled in deletion, and the transmission new data arrives MAC CE.
Because this moment, the filling bit number added the size of its son head less than long BSR, if therefore transmission Padding BSR must be short BSR (Short BSR) or block BSR (Truncated BSR), the data to be transferred amount that can only represent the logic channel that the row cache medium priority is higher, be not enough to represent current real up caching situation, so delete Padding BSR related data this moment, change the transmission new data in original position of preparing transmission Padding BSR and arrive MAC CE, flow process finishes.
S408, the transmission new data arrives MAC CE.
Because do not trigger Padding BSR this moment, and up vacant inadequate resource 8 bits then are described, initiate to send the flow process of SR this moment, to network side request ascending resource, until network allocation send new data behind the ascending resource and arrive MAC CE.May since etc. produced again new new data when to be transmitted and arrived MAC CE, during transmission, transmission generation time new data the latest arrives MAC CE, flow process finishes.
Specific embodiment two
Specific embodiment two be different from specific embodiment once in after new up data to be transferred arrives, generate new data and arrive MAC CE, but the regeneration new data arrives MAC CE after determining to carry out new buffer status report.
The schematic flow diagram of specific embodiment as shown in Figure 5.
S501: new up data to be transferred arrives, and is identical with step 401, repeats no more.
S502: judge whether to satisfy the trigger condition of Regular BSR or Periodic BSR, if so, execution in step S503, otherwise execution in step S504.
S503: trigger Regular BSR or Periodic BSR, flow process finishes.
S504: judge whether to satisfy the trigger condition of Padding BSR, if so, execution in step S505, otherwise carry out S507.
S505: judge whether the filling bit number adds its size of sub more than or equal to long BSR, if so, execution in step S506, otherwise execution in step S507.
S506: trigger and fill BSR, flow process finishes.
S507: the MAC CE that generates the up buffer data size information that is used to indicate UE is called new data and arrives MAC CE and transmission, and flow process finishes.
Specific embodiment three
When having new up data to be transferred to arrive among the UE, namely when having upstream data to become aforementioned rlc layer or PDCP layer data to be transferred among the UE, then trigger the report flow of Regular BSR.If also triggered cycle BSR when triggering conventional BSR, then determine to send which kind of BSR by UE.The essence of present embodiment is exactly that to reach in the upper row cache of informing network side UE by the condition that revise to trigger Regular BSR really be the purpose of data volume.
Specific embodiment four
In the prior art, if retransmit the BSR timer expiry, when having simultaneously data to be transferred to send in any logic channel of UE, will trigger conventional BSR, but in the existing LTE system, the minimum value that retransmits the BSR timer is 320 milliseconds (ms), if the TDD configuration change cycle of TD-LTE is 10ms, the conventional BSR that triggers of this re-transmission BSR timer expiry is not enough to adapt to the fast TDD configuration change cycle like this so.Therefore, be set the minimum period that the duration that retransmits the BSR timer is less than or equal to the TDD configuration change of TD-LTE system, can guarantee that network side in time obtains the inner real caching situation of UE.
Need to prove that in the situation of not conflicting, the embodiment among the application and the feature among the embodiment be combination in any mutually.
Certainly; the present invention also can have other various embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, described program can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (10)
1. reporting cached state method, wherein,
Arrive new up data to be transferred in the Radio Link of terminal equipment control (RLC) entity or PDCP (PDCP) entity and do not satisfy conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR), triggering is used to indicate the new buffer status report of the up buffer data size information of described terminal equipment;
Trigger conventional BSR when perhaps, arriving new up data to be transferred in the Radio Link of terminal equipment control (RLC) entity or PDCP (PDCP) entity;
Perhaps, be set the minimum period that the duration that retransmits the BSR timer is less than or equal to the time division duplex configuration of time division duplex long evolving system.
2. the method for claim 1, wherein
Arrive new up data to be transferred in the Radio Link of described terminal equipment control (RLC) entity or PDCP (PDCP) entity and do not satisfy conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR), further judge that triggering was used to indicate the new buffer status report of the up buffer data size information of described terminal equipment when the filling bit number of filling BSR added its son head big or small less than long BSR.
3. the method for claim 1, wherein
Up buffer data size information refers to the data volume through all up data to be transferred in the upper row cache after the transmission of Transmission Time Interval, perhaps passes through the data volume of described new up data to be transferred after the transmission of Transmission Time Interval.
4. such as claim 1,2 or 3 described methods, wherein,
Described new buffer status report is got involved control control (MAC) element (CE) carrying by media.
5. method as claimed in claim 4, wherein,
The media that carry described new buffer status report are got involved MAC area flag symbol territory of control control element by a numeric representation in the Binary Zero 1011 to 11000.
6. such as claim 1,2 or 3 described methods, wherein,
After described terminal equipment sends described new buffer status report, start or restart and retransmit BSR timer and cycle BSR timer.
7. a terminal equipment comprises reporting cached state optimization process module; Wherein,
Described reporting cached state optimization process module, be used for arriving new up data to be transferred and not satisfying conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR), triggering is used to indicate the new buffer status report of the up buffer data size information of described terminal equipment at Radio Link control (RLC) entity of described terminal equipment or PDCP (PDCP) entity;
Perhaps, when arriving new up data to be transferred, (RLC) entity or PDCP (PDCP) entity trigger conventional BSR for controlling at the Radio Link of described terminal equipment;
Perhaps, be used for arranging the minimum period that the duration that retransmits the BSR timer is less than or equal to the time division duplex configuration of time division duplex long evolving system.
8. terminal equipment as claimed in claim 7, wherein,
Reporting cached state optimization process module, also be used for arriving new up data to be transferred and not satisfying conventional buffer status report (BSR) and during the condition of cycle buffer status report (BSR) at Radio Link control (RLC) entity or PDCP (PDCP) entity, further judge that triggering was used to indicate the new buffer status report of the up buffer data size information of described terminal equipment when the filling bit number of filling BSR added its son head big or small less than long BSR.
9. terminal equipment as claimed in claim 7, wherein,
Up buffer data size information refers to the data volume through all up data to be transferred in the upper row cache after the transmission of Transmission Time Interval, perhaps passes through the data volume of described new up data to be transferred after the transmission of Transmission Time Interval.
10. such as claim 7,8 or 9 described terminal equipments, wherein,
Reporting cached state optimization process module also is used for after described terminal equipment sends described new buffer status report, starts or restart to retransmit BSR timer and cycle BSR timer.
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| CN201210087962.6A CN103369509B (en) | 2012-03-29 | 2012-03-29 | A kind of reporting cached state method and terminal device |
| PCT/CN2013/073348 WO2013143474A1 (en) | 2012-03-29 | 2013-03-28 | Buffer status reporting method and terminal device |
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| CN114007233B (en) * | 2021-10-22 | 2024-03-22 | 锐迪科微电子科技（上海）有限公司 | Buffer status report BSR reporting method and device and electronic equipment |
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| CN103369509B (en) | 2018-02-27 |
| WO2013143474A1 (en) | 2013-10-03 |
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