CN110099458A - Accidental access method, network side equipment and user terminal - Google Patents
Accidental access method, network side equipment and user terminal Download PDFInfo
- Publication number
- CN110099458A CN110099458A CN201810089009.2A CN201810089009A CN110099458A CN 110099458 A CN110099458 A CN 110099458A CN 201810089009 A CN201810089009 A CN 201810089009A CN 110099458 A CN110099458 A CN 110099458A
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- Prior art keywords
- network side
- user terminal
- side equipment
- preamble
- timer
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The present invention provides a kind of accidental access method, network side equipment and user terminals, belong to wireless technical field.Wherein, accidental access method is applied to network side equipment, comprising: the network side equipment specifies the specific preamble for finally needing user terminal to send in msg1 transmission process to user terminal；And/or the information that the network side equipment notifies the user terminal to carry out the timer of timing for sending the interval preamble twice to front and back.Accidental access method is applied to user terminal, comprising: the user terminal receives the specific preamble finally sent in the specified msg1 transmission process of network side equipment；And/or the user terminal receives the information for carrying out the timer of timing for sending the interval preamble twice to front and back that the network side equipment is sent.Technical solution of the present invention enables to network side equipment in the random access procedure, accurately judges whether UE has sent all lead codes.
Description
Technical field
The present invention relates to wireless technical field, a kind of accidental access method, network side equipment and user terminal are particularly related to.
Background technique
Existing 3GPP ((3rd Generation Partnership Project, third generation partner program) agreement
In, RAN (Radio Access Network, wireless access network) 2 has determined UE (User Equipment, user equipment) one
Multiple and different lead codes can be sent in a non-competing random process.Before UE sends lead code, base station side can be by these
Lead code is mutually bound from different downlink wave beams.By perceiving which lead code UE has sent, base station side be could be aware that for UE
For, which downlink wave beam of base station side can provide gain good enough.Similarly, when UE sends these lead codes, it is also possible to
Selection UE different uplink beams are sent, the energy (RSRP (Reference for the lead code that then base station side receives
Signal Receiving Power, Reference Signal Received Power)) it is also likely to be different.So when base station sends
RAR (Random Access Response, random access response) is likely to be dependent on base station, and whether to have received energy good enough
Lead code (RAR implicitly inform UE should choose which uplink beam carry out subsequent RACH (Random Access Channel,
Random access channel) and data packet transmission.
Assuming that base station by proprietary signaling be allocated to a lead code of UE N (N be greater than 1 integer) for it is non-competing with
Msg1 (message1, message 1) is sent during machine, and UE has only selected wherein a lead code transmission of n (n < N), by chance base station
It is all dissatisfied (being not above threshold value) to the energy of this n msg1, if that base station can not be sentenced if not additional information
Whether disconnected UE, which sends the UE that is over, is wanted all lead codes sent.It is emphasized that when base station knows that UE completion has sent institute
When having it to want the lead code sent, base station should get started the process for replying RAR and select in RAR comprising receiving energy
Measure the ID of best lead code.
But mechanism is had according to LTE (Long Term Evolution, long term evolution), is that base station can not be allowed to know how is UE
When complete send all desired transmissions of UE lead code.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of accidental access method, network side equipment and user terminal, energy
Enough so that network side equipment in the random access procedure, accurately judges whether UE has sent all lead codes.
In order to solve the above technical problems, the embodiment of the present invention offer technical solution is as follows:
On the one hand, a kind of accidental access method is provided, network side equipment is applied to, comprising:
The network side equipment is specified to user terminal finally needs the specific of user terminal transmission in msg1 transmission process
Random access lead code preamble；And/or the network side equipment notifies the user terminal for sending twice to front and back
The interval preamble carries out the information of the timer of timing.
Further,
The network side equipment specifies the specific preamble finally sent in msg1 transmission process to include: to user terminal
The network side equipment is reconfigured RRC_Reconfiguration signaling to the user by wireless heterogeneous networks
Terminal specifies the specific preamble；Or
The network side equipment notifies the user terminal to carry out timing for sending the interval preamble twice to front and back
The information of timer include:
The network side equipment is connected by wireless heterogeneous networks and is reconfigured RRC Connection Reconfigration
Signaling or system message specify the duration of the timer to the user terminal.
Further,
After the network side equipment specifies the specific preamble finally sent in msg1 transmission process to user terminal,
The method also includes:
The network side equipment judges that the user terminal terminates msg1 transmission after receiving the specific preamble
Process, the network side equipment reply random access response RAR to the user terminal.
Further,
The network side equipment notifies the user terminal to carry out timing for sending the interval preamble twice to front and back
Timer information after, the method also includes:
The network side equipment opens the timer after receiving a preamble, if in the timer expired
Afterwards, the network side equipment does not receive next preamble, then judges that the user terminal terminates msg1 and sends process, described
Network side equipment replys RAR to the user terminal.
The embodiment of the invention also provides a kind of accidental access methods, are applied to user terminal, comprising:
The user terminal receives the specific random access finally sent in the specified msg1 transmission process of network side equipment
Lead code preamble；And/or the user terminal receive that the network side equipment sends for being sent twice to front and back
The interval preamble carries out the information of the timer of timing.
Further,
The user terminal receives the specific preamble finally sent in the specified msg1 transmission process of network side equipment
Later, the method also includes:
Before terminating msg1 transmission process, Xiang Suoshu network side equipment sends described specific the user terminal
preamble。
Further,
The user terminal receive that the network side equipment sends for front and back is sent twice the interval preamble into
After the information of the timer of row timing, the method also includes:
Before terminating msg1 transmission process, the user terminal to the network side equipment send a preamble after,
Before the timer expired, Xiang Suoshu network side equipment sends next preamble.
The embodiment of the invention also provides a kind of network side equipment, including processor and transceiver,
The transceiver, which is used to specify to user terminal, finally needs the specific of user terminal transmission in msg1 transmission process
Random access lead code preamble；And/or notify the user terminal for front and back is sent twice the interval preamble into
The information of the timer of row timing.
Further,
The transceiver is specifically used for through wireless heterogeneous networks reconfiguration RRC_Reconfiguration signaling to described
User terminal specifies the specific preamble；Or
The transceiver, which is specifically used for connecting by wireless heterogeneous networks, is reconfigured RRC Connection
Reconfigration signaling or system message specify the duration of the timer to the user terminal.
Further,
The processor is also used to after the transceiver receives the specific preamble, judges the user terminal
Terminate msg1 and sends process；
The transceiver is also used to reply random access response RAR to the user terminal.
Further,
The processor is also used to open the timer after the transceiver receives a preamble, if described
After timer expired, the transceiver does not receive next preamble, then judge the user terminal terminate msg1 send into
Journey；
The transceiver is also used to reply RAR to the user terminal.
The embodiment of the invention also provides a kind of user terminal, including processor and transceiver,
The transceiver is used to receive finally send in the specified msg1 transmission process of network side equipment specific and connects at random
Enter lead code preamble；And/or receive that the network side equipment sends for sending the interval preamble twice to front and back
Carry out the information of the timer of timing.
Further,
The transceiver is also used to before terminating msg1 transmission process, and Xiang Suoshu network side equipment sends described specific
preamble。
Further,
The transceiver is also used to before terminating msg1 transmission process, is sending a preamble to the network side equipment
Afterwards, before the timer expired, Xiang Suoshu network side equipment sends next preamble.
The embodiment of the invention also provides a kind of network side equipment, including memory, processor and it is stored in the storage
On device and the computer program that can run on the processor；The processor is realized as described above when executing described program
Accidental access method.
The embodiment of the invention also provides a kind of user terminal, including memory, processor and it is stored in the memory
Computer program that is upper and can running on the processor；The processor realized when executing described program as described above with
Machine cut-in method.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey
The step in accidental access method as described above is realized when sequence is executed by processor.
The embodiment of the present invention has the advantages that
In above scheme, network side equipment specifies finally send in msg1 transmission process specific to connect at random to user terminal
Enter lead code preamble；Or network side equipment notice user terminal by sending front and back based on the interval preamble carries out twice
When timer information, in this way after network side equipment receives specific preamble or after timer expired, network side
Equipment may determine that user terminal terminates msg1 and sends process, and network side equipment replys RAR to user terminal.Through the invention
Technical solution can make network side equipment in the random access procedure, accurately judge whether UE has sent all lead codes.
Under the scene of more uplink beams, the time for waiting UE to send the msg1 stage can be effectively reduced, is faster connect at random
Enter.
Detailed description of the invention
Fig. 1 is the flow diagram of one embodiment of the invention accidental access method；
Fig. 2 is the flow diagram of another embodiment of the present invention accidental access method；
Fig. 3 is the flow diagram of further embodiment of this invention accidental access method；
Fig. 4 is the flow diagram of yet another embodiment of the invention accidental access method；
Fig. 5 is the structural schematic diagram of network side equipment of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of user terminal of the embodiment of the present invention.
Specific embodiment
To keep the embodiment of the present invention technical problems to be solved, technical solution and advantage clearer, below in conjunction with
Drawings and the specific embodiments are described in detail.
The embodiment of the present invention provides a kind of accidental access method, network side equipment and user terminal, enables to network
Side apparatus in the random access procedure, accurately judges whether UE has sent all lead codes.
The embodiment of the present invention provides a kind of accidental access method, is applied to network side equipment, as shown in Figure 1, comprising:
Step 101: the network side equipment is specified in msg1 transmission process to user terminal finally needs user terminal to send out
The specific random access lead code preamble sent.
Wherein, msg1 refers to a piece of news sent in the random access procedure to network side equipment in user terminal.
And/or as shown in Figure 2, comprising:
Step 201: the network side equipment notifies the user terminal for sending the interval preamble twice to front and back
Carry out the information of the timer of timing.
In the present embodiment, network side equipment specifies finally send in msg1 transmission process specific to connect at random to user terminal
Enter lead code preamble；Or network side equipment notice user terminal by sending front and back based on the interval preamble carries out twice
When timer information, in this way after network side equipment receives specific preamble or after timer expired, network side
Equipment may determine that user terminal terminates msg1 and sends process, and network side equipment replys RAR to user terminal.Through the invention
Technical solution can make network side equipment in the random access procedure, accurately judge whether UE has sent all lead codes.
Under the scene of more uplink beams, the time for waiting UE to send the msg1 stage can be effectively reduced, is faster connect at random
Enter.
Further, the network side equipment specified to user terminal finally sent in msg1 transmission process it is specific
Preamble includes:
The network side equipment passes through RRC_Reconfiguration (wireless heterogeneous networks reconfiguration) signaling to the use
Family terminal specifies the specific preamble；Or
The network side equipment notifies the user terminal to carry out timing for sending the interval preamble twice to front and back
The information of timer include:
The network side equipment by RRC Connection Reconfigration, (match again by wireless heterogeneous networks connection
Set) signaling or system message specify the duration of the timer to the user terminal.
Further, the network side equipment specified to user terminal finally sent in msg1 transmission process it is specific
After preamble, the method also includes:
The network side equipment judges that the user terminal terminates msg1 transmission after receiving the specific preamble
Process, the network side equipment reply RAR to the user terminal.
Further, the network side equipment notifies the user terminal for sending the interval preamble twice to front and back
After the information for carrying out the timer of timing, the method also includes:
The network side equipment opens the timer after receiving a preamble, if in the timer expired
Afterwards, the network side equipment does not receive next preamble, then judges that the user terminal terminates msg1 and sends process, described
Network side equipment replys RAR to the user terminal.
The embodiment of the invention also provides a kind of accidental access methods, are applied to user terminal, as shown in Figure 3, comprising:
Step 301: finally being sent in the specified msg1 transmission process of the user terminal reception network side equipment specific
Random access lead code preamble.
And/or as shown in Figure 4, comprising:
Step 401: the user terminal receive that the network side equipment sends for being sent twice to front and back
The interval preamble carries out the information of the timer of timing.
In the present embodiment, network side equipment specifies finally send in msg1 transmission process specific to connect at random to user terminal
Enter lead code preamble；Or network side equipment notice user terminal by sending front and back based on the interval preamble carries out twice
When timer information, in this way after network side equipment receives specific preamble or after timer expired, network side
Equipment may determine that user terminal terminates msg1 and sends process, and network side equipment replys RAR to user terminal.Through the invention
Technical solution can make network side equipment in the random access procedure, accurately judge whether UE has sent all lead codes.
Under the scene of more uplink beams, the time for waiting UE to send the msg1 stage can be effectively reduced, is faster connect at random
Enter.
Further,
The user terminal receives the specific preamble finally sent in the specified msg1 transmission process of network side equipment
Later, the method also includes:
Before terminating msg1 transmission process, Xiang Suoshu network side equipment sends described specific the user terminal
preamble。
Further,
The user terminal receive that the network side equipment sends for front and back is sent twice the interval preamble into
After the information of the timer of row timing, the method also includes:
Before terminating msg1 transmission process, the user terminal to the network side equipment send a preamble after,
Before the timer expired, Xiang Suoshu network side equipment sends next preamble.
Below by taking network side equipment is base station as an example, accidental access method of the invention is carried out in conjunction with specific embodiments
It is discussed in detail:
In RRC_Reconfiguration (HO command) signaling for being sent to UE, a UE is specified to UE in base station
Preamble for must finally send sends process to terminate msg1.
Or base station side maintain a timer, record receive a UE transmission preamble till now when
Between.
When base station, discovery UE has sent the last one preamble or timer expired, then shows that the more msg.1 of UE are sent
It finishes, base station stops that subsequent msg.1 is waited to send, and the process for replying RAR is opened in base station.
Wherein, base station needs above-mentioned timer information informing UE, may make UE corresponding in timer
Former and later two msg1 are sent in Msg1transmissionTimer time interval, otherwise base station will not receive subsequent msg1.Tool
Body, base station by msg1 before and after specific IE dispensing UE in system message or RRCConnectionReconfigration most
Big waiting time (msg1transmissionTimer).
For UE, when the non-competing RACH that is near completion (Random Access Channel, random access channel) mistake
Cheng Qian, UE send the last one specified preamble of network side.
The embodiment of the invention also provides a kind of network side equipments, as shown in figure 5, including processor 51 and transceiver 52,
The transceiver 52 is used to specify the spy for finally needing user terminal to send in msg1 transmission process to user terminal
Determine random access lead code preamble；And/or notify the user terminal for sending the interval preamble twice to front and back
Carry out the information of the timer of timing.
Further,
The transceiver 52 is specifically used for being reconfigured RRC_Reconfiguration signaling to institute by wireless heterogeneous networks
It states user terminal and specifies the specific preamble；Or
The transceiver, which is specifically used for connecting by wireless heterogeneous networks, is reconfigured RRC Connection
Reconfigration signaling or system message specify the duration of the timer to the user terminal.
Further,
The processor 51 is also used to after the transceiver 52 receives the specific preamble, judges the user
Terminal terminates msg1 and sends process；
The transceiver 52 is also used to reply random access response RAR to the user terminal.
Further,
The processor 51 is also used to open the timer after the transceiver 52 receives a preamble, if
After the timer expired, the transceiver 52 does not receive next preamble, then judges that the user terminal terminates msg1
Transmission process；
The transceiver 52 is also used to reply RAR to the user terminal.
The embodiment of the invention also provides a kind of user terminals, as shown in fig. 6, including processor 61 and transceiver 62,
The transceiver 62 be used to receive finally sent in the specified msg1 transmission process of network side equipment it is specific random
Access lead code preamble；And/or receive that the network side equipment sends for sending preamble twice to front and back
Every the information for the timer for carrying out timing.
Further,
The transceiver 62 is also used to before terminating msg1 transmission process, and Xiang Suoshu network side equipment sends described specific
preamble。
Further,
The transceiver 62 is also used to before terminating msg1 transmission process, is sending one to the network side equipment
After preamble, before the timer expired, Xiang Suoshu network side equipment sends next preamble.
The embodiment of the invention also provides a kind of network side equipment, including memory, processor and it is stored in the storage
On device and the computer program that can run on the processor；The processor is realized as described above when executing described program
Accidental access method.
The embodiment of the invention also provides a kind of user terminal, including memory, processor and it is stored in the memory
Computer program that is upper and can running on the processor；The processor realized when executing described program as described above with
Machine cut-in method.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey
The step in accidental access method as described above is realized when sequence is executed by processor.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (17)
1. a kind of accidental access method is applied to network side equipment characterized by comprising
The network side equipment is specified to user terminal finally needs the specific random of user terminal transmission in msg1 transmission process
Access lead code preamble；And/or the network side equipment notifies the user terminal for sending twice to front and back
The interval preamble carries out the information of the timer of timing.
2. accidental access method according to claim 1, which is characterized in that the network side equipment is specified to user terminal
The specific preamble finally sent in msg1 transmission process includes:
The network side equipment is reconfigured RRC_Reconfiguration signaling to the user terminal by wireless heterogeneous networks
Specify the specific preamble；Or
The network side equipment notifies the user terminal to carry out based on timing by sending the interval preamble twice to front and back
When device information include:
The network side equipment is connected by wireless heterogeneous networks and is reconfigured RRC Connection Reconfigration signaling
Or system message specifies the duration of the timer to the user terminal.
3. accidental access method according to claim 1, which is characterized in that the network side equipment is specified to user terminal
After the specific preamble finally sent in msg1 transmission process, the method also includes:
The network side equipment after receiving the specific preamble, judge the user terminal terminate msg1 send into
Journey, the network side equipment reply random access response RAR to the user terminal.
4. accidental access method according to claim 1, which is characterized in that the network side equipment notifies that the user is whole
After holding the information for sending the timer that the interval preamble carries out timing twice to front and back, the method also includes:
The network side equipment opens the timer after receiving a preamble, if after the timer expired, institute
It states network side equipment and does not receive next preamble, then judge that the user terminal terminates msg1 and sends process, the network
Side apparatus replys RAR to the user terminal.
5. a kind of accidental access method is applied to user terminal characterized by comprising
The user terminal receives the specific random access preamble finally sent in the specified msg1 transmission process of network side equipment
Code preamble；And/or the user terminal receive that the network side equipment sends for being sent twice to front and back
The interval preamble carries out the information of the timer of timing.
6. accidental access method according to claim 5, which is characterized in that the user terminal receives network side equipment and refers to
After the specific preamble finally sent in fixed msg1 transmission process, the method also includes:
For the user terminal before terminating msg1 transmission process, Xiang Suoshu network side equipment sends the specific preamble.
7. accidental access method according to claim 5, which is characterized in that the user terminal receives the network side and sets
After the information for sending the timer that the interval preamble carries out timing twice to front and back that preparation is sent, the method is also wrapped
It includes:
Before terminating msg1 transmission process, the user terminal is after sending a preamble to the network side equipment, in institute
Before stating timer expired, Xiang Suoshu network side equipment sends next preamble.
8. a kind of network side equipment, which is characterized in that including processor and transceiver,
The transceiver, which is used to specify to user terminal, finally needs the specific random of user terminal transmission in msg1 transmission process
Access lead code preamble；And/or notify the user terminal by being sent twice based on the interval preamble carries out to front and back
When timer information.
9. network side equipment according to claim 8, which is characterized in that
The transceiver is specifically used for being reconfigured RRC_Reconfiguration signaling to the user by wireless heterogeneous networks
Terminal specifies the specific preamble；Or
The transceiver, which is specifically used for connecting by wireless heterogeneous networks, is reconfigured RRC Connection Reconfigration
Signaling or system message specify the duration of the timer to the user terminal.
10. network side equipment according to claim 8, which is characterized in that
The processor is also used to after the transceiver receives the specific preamble, judges that the user terminal terminates
Msg1 sends process；
The transceiver is also used to reply random access response RAR to the user terminal.
11. network side equipment according to claim 8, which is characterized in that
The processor is also used to open the timer after the transceiver receives a preamble, if in the timing
After device time-out, the transceiver does not receive next preamble, then judges that the user terminal terminates msg1 and sends process；
The transceiver is also used to reply RAR to the user terminal.
12. a kind of user terminal, which is characterized in that including processor and transceiver,
Before the transceiver is used to receive the specific random access finally sent in the specified msg1 transmission process of network side equipment
Leading code preamble；And/or it receives the interval preamble that is used to send front and back twice that the network side equipment is sent and carries out
The information of the timer of timing.
13. user terminal according to claim 12, which is characterized in that
The transceiver is also used to before terminating msg1 transmission process, and Xiang Suoshu network side equipment sends described specific
preamble。
14. user terminal according to claim 12, which is characterized in that
The transceiver is also used to before terminating msg1 transmission process, after sending a preamble to the network side equipment,
Before the timer expired, Xiang Suoshu network side equipment sends next preamble.
15. a kind of network side equipment, including memory, processor and it is stored on the memory and can be on the processor
The computer program of operation；It is characterized in that, the processor is realized when executing described program such as any one of claim 1-4 institute
The accidental access method stated.
16. a kind of user terminal, including memory, processor and it is stored on the memory and can transports on the processor
Capable computer program；It is characterized in that, the processor is realized as described in claim any one of 5-7 when executing described program
Accidental access method.
17. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The step in accidental access method according to any one of claims 1-4 is realized when execution or realizes that claim 5-7 such as appoints
Step in accidental access method described in one.
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