CN109429355A - A kind of processing method of random access, user terminal and network side equipment - Google Patents
A kind of processing method of random access, user terminal and network side equipment Download PDFInfo
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- CN109429355A CN109429355A CN201710731478.5A CN201710731478A CN109429355A CN 109429355 A CN109429355 A CN 109429355A CN 201710731478 A CN201710731478 A CN 201710731478A CN 109429355 A CN109429355 A CN 109429355A
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- random access
- value
- user terminal
- parameter
- rollback
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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 processing method, user terminal and the network side equipment of a kind of random access, this method comprises: if random access attempts failure, according to the corresponding rollback range selection fallback value that random access is attempted next time of random access, the rollback range is the value range attempting corresponding setup parameter according to this random access and determining；According to fallback value delay, random access is attempted next time.Rollback range is determined due to attempting corresponding setup parameter according to this random access, different rollback ranges is configured to different random access to realize, the flexibility for improving the configuration of rollback range can reach different delay performances to different random access configurations.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of processing methods of random access, user terminal and network
Side apparatus.
Background technique
Compared with previous mobile communication system, following 5G mobile communication system need to adapt to more diversified scene and
Business demand.The prevailing scenario of 5G includes eMBB, URLLC, mMTC, these scenes propose highly reliable, low time delay to system, greatly
Bandwidth, wide covering etc. require.In order to meet different demands business and different application scenarios, the subcarrier spacing of 5G system is not
It is single 15kHz as inside LTE again, system can support a variety of subcarrier spacings, and different subcarrier spacings can be with
Suitable for different scenes.Such as bandwidth big for high band, relatively larger subcarrier spacing can be configured.It is same with this
When, big subcarrier spacing corresponds to small symbol lengths in time domain, can satisfy the requirement of low time delay business.
Different subcarrier spacings, reflection arrive MAC media access control layer, are presented as different TTI length.Also known as not
Same baseband parameter numerology, is likely to be breached different numerology different latency requirements, equally not of the same trade or business
The delay requirement of the random access of business is also different.
However in existing random access procedure, existing user terminal is unified to all random access procedures to be set
Rollback range (i.e. backoff parameter), the random access for being unable to satisfy different delayed time demand realize different rollback range settings,
Therefore, existing random access procedure has that the flexibility of rollback range configuration is poor.
Summary of the invention
The embodiment of the present invention provides processing method, user terminal and the network side equipment of a kind of random access, with solve with
Machine access procedure has that the flexibility of rollback range configuration is poor.
In a first aspect, being applied to user terminal, packet the embodiment of the invention provides a kind of processing method of random access
It includes:
If random access attempts failure, according to the corresponding rollback range selection random access trial next time of random access
Fallback value, the rollback range are the value ranges attempting corresponding setup parameter according to this random access and determining；
According to fallback value delay, random access is attempted next time.
Second aspect, the embodiment of the invention also provides a kind of processing methods of random access, are applied to network side equipment,
Include:
The random access that user terminal is sent is received to attempt；
Corresponding setup parameter, which is attempted, according to this random access determines that rollback range, the rollback range are used for for user
Terminal selects the fallback value that random access is attempted next time in this random failure；
It is attempted to send random access response RAR message to user terminal according to the random access, the RAR message carries
There is the parameter value for being used to indicate the rollback range.
The third aspect, the embodiment of the invention also provides a kind of user terminals, comprising:
Selecting module, if attempting failure for random access, next time according to the corresponding rollback range selection of random access
The fallback value that random access is attempted, the rollback range are the models attempting corresponding setup parameter according to this random access and determining
Enclose value；
Processing module, for random access to be attempted next time according to fallback value delay.
Fourth aspect, the embodiment of the invention also provides a kind of network side equipments, comprising:
Signal receiving module, the random access for receiving user terminal transmission are attempted；
Determining module determines rollback range, the rollback for attempting corresponding setup parameter according to this random access
Range is used to select the fallback value that random access is attempted next time in this random failure for user terminal；
First sending module, for attempting to disappear to user terminal transmission random access response RAR according to the random access
Breath, the RAR message carry the parameter value for being used to indicate the rollback range.
5th aspect, the embodiment of the invention also provides a kind of user terminals, comprising:
One or more processors；
Memory；And
One or more programs, wherein one or more of programs are stored in the memory, and are configured
It is executed at by one or more of processors, described program is performed the step in the processing method for realizing above-mentioned random access
Suddenly.
6th aspect, the embodiment of the invention also provides a kind of network side equipments, comprising:
One or more processors；
Memory；And
One or more programs, wherein one or more of programs are stored in the memory, and are configured
It is executed at by one or more of processors, described program is performed the step in the processing method for realizing above-mentioned random access
Suddenly.
7th aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program, the computer program realize the step in the processing method of above-mentioned random access when being executed by processor.
In this way, if random access attempts failure, being selected according to the corresponding rollback range of random access in the embodiment of the present invention
The fallback value that random access is attempted next time, the rollback range are true according to the corresponding setup parameter of this random access trial
Fixed value range；According to fallback value delay, random access is attempted next time.Due to attempting to correspond to according to this random access
Setup parameter determine rollback range, configure different rollback ranges to different random access to realize, improve back
The flexibility for moving back range configuration can reach different delay performances to different random access configurations.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is one of the flow chart of processing method of random access that one embodiment of the invention provides；
Fig. 2 is the two of the flow chart of the processing method for the random access that one embodiment of the invention provides；
Fig. 3 is the three of the flow chart of the processing method for the random access that one embodiment of the invention provides；
Fig. 4 is the four of the flow chart of the processing method for the random access that one embodiment of the invention provides；
Fig. 5 is one of the structure chart of user terminal that one embodiment of the invention provides；
Fig. 6 is one of the structure chart of network side equipment that one embodiment of the invention provides；
Fig. 7 is the two of the structure chart for the user terminal that one embodiment of the invention provides；
Fig. 8 is the two of the structure chart for the network side equipment that one embodiment of the invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It is a kind of flow chart of the processing method of random access provided in an embodiment of the present invention referring to Fig. 1, Fig. 1, such as Fig. 1 institute
Show, comprising the following steps:
Step 101, it if random access attempts failure, is connect at random next time according to the corresponding rollback range selection of random access
Enter the fallback value of trial, the rollback range is the value range attempting corresponding setup parameter according to this random access and determining；
The processing method application of random access provided in an embodiment of the present invention on the subscriber terminal, is carried out for user terminal
Random access attempts the delay process of failure.
In the step, the size of above-mentioned rollback range can be configured according to actual needs, the present embodiment rollback range
Size depend on this random access and attempt the value of corresponding setup parameter, can be to the value of setup parameter in the present embodiment
Priority level is set, for example, each priority level is set with corresponding rollback range parametric values, network side equipment or user are whole
End can select corresponding rollback range according to the priority level.The type of the setup parameter can be set according to actual needs
It sets, such as the setup parameter includes the corresponding industry of baseband parameter numerology, random access used in random access procedure
Business, the priority of the corresponding business of random access or business related needs etc..
Specifically, above-mentioned rollback range can be according to the backoff parameter configured in user terminal random access procedure
First parameter value determines that user terminal can join the second of the backoff parameter that network side equipment be configured according to priority level
Numerical value is directly disposed as the first parameter value, and user terminal can also configure the second ginseng of backoff parameter according to network side equipment
Numerical value is adjusted to obtain according to priority level.User terminal after random access procedure initializes, backoff parameter
First parameter value is 0, when receiving the second parameter value of backoff parameter of network side equipment configuration, it will to connecing at random
First parameter value of the backoff parameter during entering is configured.
Above-mentioned fallback value is a value in rollback range, such as rollback range is 0 to 128ms, then fallback value can be 0
To any one value in 128ms, such as 50ms, 60ms.
Step 102, according to fallback value delay, random access is attempted next time.
In the random access procedure, if this random access attempts failure, according to the first parameter value of backoff parameter
The fallback value of selection carries out the delay that random access is attempted next time, such as fallback value is 50ms, then can determine access failure
When, the random access for postponing to carry out next time after 50ms is attempted.
In this way, if random access attempts failure, being selected according to the corresponding rollback range of random access in the embodiment of the present invention
The fallback value that random access is attempted next time, the rollback range are true according to the corresponding setup parameter of this random access trial
Fixed value range；According to fallback value delay, random access is attempted next time.Due to attempting to correspond to according to this random access
Setup parameter determine rollback range, configure different rollback ranges to different random access to realize, improve back
The flexibility for moving back range configuration can reach different delay performances to different random access configurations.
Further, the sending method that network side equipment carries out backoff parameter can be configured according to actual needs,
Preferably, in the present embodiment, which can carry in random access response RAR message.Specifically, reference
Fig. 2, before above-mentioned steps 101, the above method further include:
Step 103, leader sequence code preamble is sent to network side equipment；
In the step, above-mentioned random access is attempted to be msg1 signal, and the preamble which attempts to carry is can
To be proprietary preamble, it is also possible to non-proprietary preamble.
Step 104, the random access response RAR message that network side equipment is sent according to the leader sequence code, institute are received
It states RAR message and carries parameter value, the parameter value is for determining the rollback range.
It should be understood that random access response RAR message is Msg2, network side equipment receives Msg1, calculates Timing Advance
TA, and random access response is sent to terminal, the Timing Advance information is included at least in random access response and is directed to Msg3
Uplink scheduling authorization UL grant.User terminal needs monitoring lasting in entire RAR window, to receive corresponding RAR
Message.It is defined in Backoff mechanism, the index of backoff parameter, the value of the corresponding backoff of each index.
Include in the step, in the MAC header of RAR message the subheader of backoff indicator (as
The parameter value that RAR message carries, it may also be said to be the second parameter value of above-mentioned backoff parameter), it wherein can in subheader
To indicate specific Backoff parameter index by 4 bits, when network side equipment according to priority level directly into
Row configures the subheader, then the first parameter value of backoff parameter can be set as referring in subheader by user terminal
The value shown.
It should be understood that above-mentioned parameter value can indicate the specific value range of rollback range, rollback range can also be only indicated
Maximum value, in order to reduce the wasting of resources, it is preferable that the minimum value of above-mentioned rollback range is default value 0, and above-mentioned parameter value is for referring to
Show maximum fallback value (i.e. the maximum value of rollback range).
It should be noted that rollback range can directly be determined by network side equipment, can also be by user in the present embodiment
Terminal is independently scaled or is deviated and is determined, and the determination of rollback range is described in detail in following embodiment.
In one embodiment, after above-mentioned steps 104 further include:
The maximum fallback value that the parameter value is indicated is set as the maximum value of the rollback range, the rollback range
Minimum value is default value 0.
In the present embodiment, the maximum value of rollback range is selected according to setup parameter by network side equipment, and passes through above-mentioned ginseng
Numerical value is indicated, after user terminal receives the parameter value at this time, sets the parameter value to the value of backoff parameter.Example
Maximum fallback value as parameter value indicates is 128ms, then it is 128ms that the value of the backoff parameter, which is arranged, in user terminal.
In another embodiment, after above-mentioned steps 104 further include:
The maximum fallback value that the parameter value is indicated is zoomed in and out according to target scale ratio or according to target offset
After being overlapped, it is set as the maximum value of the rollback range, the minimum value of the rollback range is default value 0.
In the present embodiment, above-mentioned target scale ratio is the ratio value determined according to the setup parameter；Above-mentioned target is inclined
Shifting amount is the offset determined according to the setup parameter.
For example, the different priorities of setup parameter do not correspond to different ratio values, the size of the ratio value can be according to reality
Border needs to be configured, not further herein to be limited.For example, the ratio value is when a random access attempts failure
0.5, if the maximum fallback value of above-mentioned parameter value instruction is 128ms, the first parameter of the backoff parameter is arranged in user terminal
Value value is 64ms.
It is connect at random it should be noted that may not received in step 103 during a random access is attempted
Enter the random access response RAR message of trial, then in the selection of the first parameter value to backoff parameter there are a variety of situations,
This is described in detail below:
The first situation does not receive RAR message in a random access procedure: if this random access is attempted
The first random access for user terminal random access procedure of progress is attempted, then the first parameter value of backoff parameter makes
With initial value 0；If this random access is attempted not to carry out the first random of a random access procedure for user terminal
Access attempts, then the first parameter value of backoff parameter is taken using the RAR message received before in this random access procedure
The backoff parameter of band, if also not receiving RAR message before fruit, the first parameter value of backoff parameter is still used just
Initial value 0.
It should be noted that above-mentioned random access is attempted to can be the random access of competition, be also possible to it is non-competing with
Machine access.It attempts to be that the random access competed is when random access, after above-mentioned steps 104, before step 101, this method
Further include:
Step 105, contention resolved request is sent to network side equipment；
In the step, contention resolved request is Msg3, and user terminal sends uplink on the UL grant that Msg2 is specified and passes
Defeated, the content that different random accesses reason Msg3 uplink is different, such as being initially accessed, and Msg3 transmission is that RRC connects
Connect foundation request.
Step 106, it receives network side equipment to be responded according to the contention resolved that contention resolved request is sent, the competition
It solves to respond whether the random access for being used to indicate user terminal succeeds.
In the step, contention resolved response is Msg4, and whether user terminal may determine that random access trial according to Msg4
Success.If random access trial and success, a random access procedure will be completed, if random access attempts failure, according to
Fallback value delay carries out random access trial next time after a certain period of time.
Further, the selection mode of fallback value can be configured according to actual needs, it is preferable that in this implementation
In example, as shown in figure 3, above-mentioned steps 102 include:
According to time for being evenly distributed random selection random access trial next time within the scope of the corresponding rollback of random access
Move back value.
In the step, it is impartial for being evenly distributed the probability for referring to that each value within the scope of rollback is selected at random.Example
The range that such as retracts is 0 to 99ms, and the value of fallback value is integer, then 0 to 99 all integers are randomly selected by user terminal
Probability is 1%.
Further, referring to Fig. 4, the present invention also provides a kind of processing methods of random access, this method comprises:
Step 401, it receives user terminal and carries out the transmitted leader sequence code preamble of random access trial；
The processing method of random access provided in an embodiment of the present invention is applied on network side equipment, for user terminal into
Row random access attempts the delays time to control of failure.
In the step, the preamble that above-mentioned random access is attempted to carry is to can be proprietary preamble, is also possible to
Non-proprietary preamble.
Step 402, corresponding setup parameter is attempted according to this random access and determines that rollback range, the rollback range are used
The selection fallback value that random access is attempted next time when for user terminal in this random failure；
In the step, the size of above-mentioned rollback range can be configured according to actual needs, the present embodiment rollback range
Size depend on this random access and attempt the value of corresponding setup parameter, can be to the value of setup parameter in the present embodiment
Priority level is set, for example, each priority level is set with corresponding rollback range parametric values, network side equipment or user are whole
End can select corresponding rollback range according to the priority level.The type of the setup parameter can be set according to actual needs
It sets, such as the setup parameter includes the corresponding industry of baseband parameter numerology, random access used in random access procedure
Business, the priority of the corresponding business of random access or business related needs etc..
Specifically, above-mentioned rollback range can be according to the backoff parameter configured in user terminal random access procedure
First parameter value is determining, the second parameter value of the backoff parameter that network side equipment is configured according to priority level, and user terminal is straight
It connects and sets the first parameter value for second parameter value.User terminal is after a random access procedure initializes, backoff ginseng
The first several parameter values be 0, receive network side equipment configuration backoff parameter the second parameter value when, it will to
First parameter value of the backoff parameter in machine access procedure is configured.
Step 403, random access response RAR message is sent to user terminal according to the leader sequence code, the RAR disappears
Breath carries the parameter value for being used to indicate the rollback range；
It should be understood that network side equipment receives random access trial, timing advance TA is calculated, and send at random to terminal
Access responds, and the Timing Advance information and the uplink scheduling authorization UL for Msg3 are included at least in random access response
grant.User terminal needs monitoring lasting in entire RAR window, to receive corresponding RAR message.In Backoff mechanism
In define, the value of the corresponding backoff of the index of backoff parameter, each index.
Include in the step, in the MAC header of RAR message the subheader of backoff indicator (as
The parameter value that RAR message carries, it may also be said to be the second parameter value of above-mentioned backoff parameter), it wherein can in subheader
To indicate specific Backoff parameter index by 4 bits, when network side equipment according to priority level directly into
Row configures the subheader, then the first parameter value of backoff parameter can be set as referring in subheader by user terminal
The value shown.Include in the step, in the MAC header of RAR message the subheader of backoff indicator (as
The parameter value that RAR message carries, it may also be said to be the second parameter value of above-mentioned backoff parameter), it wherein can in subheader
To indicate specific Backoff parameter index by 4 bits, when network side equipment according to priority level directly into
Row configures the subheader, then the first parameter value of backoff parameter can be set as referring in subheader by user terminal
The value shown.
It should be understood that above-mentioned parameter value can indicate the specific value range of rollback range, rollback range can also be only indicated
Maximum value, in order to reduce the wasting of resources, it is preferable that the minimum value of above-mentioned rollback range is default value 0, and above-mentioned parameter value is for referring to
Show maximum fallback value (i.e. the maximum value of rollback range).
In the present embodiment, the maximum value of rollback range is selected according to setup parameter by network side equipment, and passes through above-mentioned ginseng
Numerical value is indicated, after user terminal receives the parameter value at this time, sets the parameter value to the value of backoff parameter.Example
Maximum fallback value as parameter value indicates is 128ms, then it is 128ms that the value of the backoff parameter, which is arranged, in user terminal.
In this way, receiving user terminal in the embodiment of the present invention and carrying out the transmitted leader sequence code of random access trial
preamble；Corresponding setup parameter, which is attempted, according to this random access does not determine that rollback range, the rollback range are used to supply
User terminal selects the fallback value that random access is attempted next time in this random failure；According to the leader sequence code to
Family terminal sends random access response RAR message, and the RAR message carries the parameter value for being used to indicate the rollback range.
Rollback range is determined due to attempting corresponding setup parameter according to this random access, to realize to different random access
Different rollback ranges is configured, the flexibility of rollback range configuration is improved, different can be reached to different random access configurations
Delay performance.
It should be noted that above-mentioned random access is attempted to can be the random access of competition, be also possible to it is non-competing with
Machine access.It attempts to be that the random access competed is when random access, after above-mentioned steps 403, this method further include:
Receive the contention resolved request that user terminal is sent；
In the step, user terminal sends uplink on the UL grant that RAR message is specified, and different random access is former
Because the content of contention resolved request uplink is different, such as being initially accessed, contention resolved request transmission is RRC connection
Establish request.
It is requested to send contention resolved response to user equipment according to the contention resolved, the contention resolved response is for referring to
Show whether the random access of user terminal succeeds.
In the step, user terminal may determine that whether random access trial succeeds according to contention resolved response.If with
The success of machine access attempts, then will complete a random access procedure, if random access attempts failure, according to fallback value delay one
Random access trial next time is carried out after fixing time.
In the random access procedure, if this random access attempts failure, user terminal will basis for user terminal
The fallback value of the first parameter value selection of backoff parameter carries out random access next time and attempts delay, such as fallback value is
50ms, then can be when determining access failure, and the random access for postponing to carry out next time after 50ms is attempted.
It is the structure chart of user terminal provided in an embodiment of the present invention referring to Fig. 5, Fig. 5, can be realized in above-described embodiment
The details of the processing method of random access, and reach identical effect.As shown in figure 5, user terminal includes:
Selecting module 501, it is next according to the corresponding rollback range selection of random access if attempting failure for random access
The fallback value that secondary random access is attempted, the rollback range is to attempt corresponding setup parameter according to this random access to determine
Value range；
Processing module 502, for random access to be attempted next time according to fallback value delay.
Optionally, the user terminal further include:
Signal transmitting module, for sending leader sequence code preamble to network side equipment；
First receiving module, the random access response sent for receiving network side equipment according to the leader sequence code
RAR message, the RAR message carry parameter value, and the parameter value is for determining the rollback range.
Optionally, the user terminal further include:
Request sending module, for sending contention resolved request to network side equipment；
Second receiving module is rung for receiving network side equipment according to the contention resolved that contention resolved request is sent
It answers, whether the random access that the contention resolved response is used to indicate user terminal succeeds.
Optionally, the parameter value is used to indicate maximum fallback value.
Optionally, the parameter value is the value determined by network side equipment according to the setup parameter, the user terminal
Further include:
First configuration module, the maximum fallback value for indicating the parameter value are set as the maximum of the rollback range
Value, the minimum value of the rollback range are default value 0.
Optionally, the user terminal further include:
Second configuration module, the maximum fallback value for indicating the parameter value are zoomed in and out according to target scale ratio
Or according to target it is set as the maximum value of the rollback range, the minimum value of the rollback range is after offset is overlapped
Default value 0.
Optionally, the target scale ratio is the ratio value determined according to the setup parameter.
Optionally, the target offset amount is the offset determined according to the setup parameter.
Optionally, the setup parameter includes the baseband parameter numerology used in random access procedure, connects at random
Enter the priority or business related needs of the corresponding business of corresponding business, random access.
In this way, if random access attempts failure, being selected according to the corresponding rollback range of random access in the embodiment of the present invention
The fallback value that random access is attempted next time, the rollback range are true according to the corresponding setup parameter of this random access trial
Fixed value range；According to fallback value delay, random access is attempted next time.Due to attempting to correspond to according to this random access
Setup parameter determine rollback range, configure different rollback ranges to different random access to realize, improve back
The flexibility for moving back range configuration can reach different delay performances to different random access configurations.
It is the structure chart of network side equipment provided in an embodiment of the present invention referring to Fig. 6, Fig. 6, can be realized above-described embodiment
The details of the processing method of middle random access, and reach identical effect.As shown in fig. 6, network side equipment includes:
Signal receiving module 601 carries out the transmitted leader sequence code of random access trial for receiving user terminal
preamble；
Determining module 602 determines rollback range for attempting corresponding setup parameter according to this random access, described time
Range is moved back for selecting the fallback value that random access is attempted next time in this random failure for user terminal；
First sending module 603 disappears for sending random access response RAR to user terminal according to the leader sequence code
Breath, the RAR message carry the parameter value for being used to indicate the rollback range.
Optionally, above-mentioned network side equipment further include:
Request receiving module, for receiving the contention resolved request of user terminal transmission；
Second sending module sends contention resolved response to user equipment for requesting according to the contention resolved, described
Whether the random access that contention resolved response is used to indicate user terminal succeeds.
Optionally, the setup parameter includes the baseband parameter numerology used in random access procedure, connects at random
Enter the priority or business related needs of the corresponding business of corresponding business, random access.
Optionally, the parameter value is used to indicate the maximum fallback value of the rollback range, the minimum of the rollback range
Value is default value 0.
In this way, receiving user terminal in the embodiment of the present invention and carrying out the transmitted leader sequence code of random access trial
preamble；Corresponding setup parameter, which is attempted, according to this random access does not determine that rollback range, the rollback range are used to supply
User terminal selects the fallback value that random access is attempted next time in this random failure；According to the leader sequence code to
Family terminal sends random access response RAR message, and the RAR message carries the parameter value for being used to indicate the rollback range.
Rollback range is determined due to attempting corresponding setup parameter according to this random access, to realize to different random access
Different rollback ranges is configured, the flexibility of rollback range configuration is improved, different can be reached to different random access configurations
Delay performance.
It is the structure chart of user terminal provided in an embodiment of the present invention referring to Fig. 7, Fig. 7, can be realized in above-described embodiment
The details of the processing method of random access, and reach identical effect.As shown in fig. 7, user terminal 700 includes: at least one
Processor 701, memory 702, at least one network interface 704 and user interface 703.Various components in user terminal 700
It is coupled by bus system 705.It is understood that bus system 705 is for realizing the connection communication between these components.Always
Linear system system 705 further includes power bus, control bus and status signal bus in addition in addition to including data/address bus.But in order to clear
For the sake of Chu's explanation, various buses are all designated as bus system 705 in Fig. 7.
Wherein, user interface 703 may include display, keyboard or pointing device (for example, mouse, trace ball
(track ball), touch-sensitive plate or touch screen etc..
It is appreciated that the memory 702 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
It or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read-
Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable
Device (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or
Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), be used as external high
Speed caching.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory
(Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct
Rambus RAM, DRRAM).The memory 702 of system and method described herein is intended to include but is not limited to these and arbitrarily its
It is suitble to the memory of type.
In some embodiments, memory 702 stores following element, executable modules or data structures, or
Their subset of person or their superset: operating system 7021 and application program 7022.
Wherein, operating system 7021 include various system programs, such as ccf layer, core library layer, driving layer etc., are used for
Realize various basic businesses and the hardware based task of processing.Application program 7022 includes various application programs, such as media
Player (Media Player), browser (Browser) etc., for realizing various applied business.Realize the embodiment of the present invention
The program of method may be embodied in application program 7022.
In embodiments of the present invention, user terminal further include: be stored on memory 702 and can be transported on processor 701
Capable computer program specifically can be the computer program in application program 7022, computer program is by processor 701
Following steps are realized when execution: if random access attempts failure, according to the selection of random access corresponding rollback range next time with
The fallback value of machine access attempts, the rollback range are the ranges attempting corresponding setup parameter according to this random access and determining
Value；According to fallback value delay, random access is attempted next time.
The method that the embodiments of the present invention disclose can be applied in processor 701, or be realized by processor 701.
Processor 701 may be a kind of IC chip, the processing capacity with signal.During realization, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 701 or the instruction of software form.Above-mentioned processing
Device 701 can be general processor, digital signal processor (Digital Signal Processor, DSP), dedicated integrated electricity
Road (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field
Programmable GateArray, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general
Processor can be microprocessor or the processor is also possible to any conventional processor etc..In conjunction with institute of the embodiment of the present invention
The step of disclosed method, can be embodied directly in hardware decoding processor and execute completion, or with the hardware in decoding processor
And software module combination executes completion.Software module can be located at random access memory, and flash memory, read-only memory may be programmed read-only
In the storage medium of this fields such as memory or electrically erasable programmable memory, register maturation.The storage medium is located at
The step of memory 702, processor 701 reads the information in memory 702, completes the above method in conjunction with its hardware.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combination is to realize.For hardware realization, processing unit be may be implemented in one or more specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.
For software implementations, it can be realized herein by executing the module (such as process, function etc.) of function described herein
The technology.Software code is storable in memory and is executed by processor.Memory can in the processor or
It is realized outside processor.
Optionally, following steps be can also be achieved when computer program is executed by processor 701: before sending to network side equipment
Lead sequence code preamble；Receive the random access response RAR message that network side equipment is sent according to the leader sequence code, institute
It states RAR message and carries parameter value, the parameter value is for determining the rollback range.
Optionally, following steps be can also be achieved when computer program is executed by processor 701: being sent to network side equipment competing
Strive solution request；It receives network side equipment to be responded according to the contention resolved that contention resolved request is sent, the contention resolved
Whether the random access that response is used to indicate user terminal succeeds.
Optionally, the parameter value is used to indicate maximum fallback value.
Optionally, the parameter value is the value determined by network side equipment according to the setup parameter, computer program quilt
Processor 701 can also be achieved following steps when executing:
The maximum fallback value that the parameter value is indicated is set as the maximum value of the rollback range, the rollback range
Minimum value is default value 0.
Optionally, following steps be can also be achieved when computer program is executed by processor 701: the parameter value is indicated
After maximum fallback value is zoomed in and out according to target scale ratio or according to target offset is overlapped, it is set as the rollback model
The maximum value enclosed, the minimum value of the rollback range are default value 0.
Optionally, the target scale ratio is the ratio value determined according to the setup parameter.
Optionally, the target offset amount is the offset determined according to the setup parameter.
Optionally, the setup parameter includes the baseband parameter numerology used in random access procedure, connects at random
Enter corresponding priority, random access reason, the corresponding business of random access, the priority of the corresponding business of random access or
Business related needs.
In this way, if random access attempts failure, being selected according to the corresponding rollback range of random access in the embodiment of the present invention
The fallback value that random access is attempted next time, the rollback range are true according to the corresponding setup parameter of this random access trial
Fixed value range；According to fallback value delay, random access is attempted next time.Due to attempting to correspond to according to this random access
Setup parameter determine rollback range, configure different rollback ranges to different random access to realize, improve back
The flexibility for moving back range configuration can reach different delay performances to different random access configurations.
Referring to Fig. 8, Fig. 8 is the structure chart of network side equipment provided in an embodiment of the present invention, above-mentioned implementation can be realized
The details of the processing method of random access in example, and reach identical effect.As shown in figure 8, network side equipment 800 includes: place
Manage device 801, transceiver 802, memory 803, user interface 804 and bus interface, in which:
Processor 801 executes following process: receiving user terminal and carry out at random for reading the program in memory 803
Leader sequence code preamble transmitted by access attempts；Attempting corresponding setup parameter according to this random access Que Ding not return
Range is moved back, the rollback range is used to select the rollback that random access is attempted next time in this random failure for user terminal
Value；Random access response RAR message is sent to user terminal according to the leader sequence code, the RAR message, which carries, to be used for
Indicate the parameter value of the rollback range.
In fig. 8, bus architecture may include the bus and bridge of any number of interconnection, specifically be represented by processor 801
One or more processors and the various circuits of memory that represent of memory 803 link together.Bus architecture can be with
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like are linked together, these are all these
Well known to field, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 802 can be
Multiple element includes transmitter and receiver, provides the unit for communicating over a transmission medium with various other devices.Needle
To different user equipmenies, user interface 804, which can also be, external the interface for needing equipment is inscribed, and the equipment of connection includes
But be not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 801, which is responsible for management bus architecture and common processing, memory 803, can store processor 801 and is holding
Used data when row operation.
Optionally, following steps be can also be achieved when computer program is executed by processor 801:
Receive the contention resolved request that user terminal is sent；
It is requested to send contention resolved response to user equipment according to the contention resolved, the contention resolved response is for referring to
Show whether the random access of user terminal succeeds.
Optionally, setup parameter includes baseband parameter numerology, the random access pair used in random access procedure
The priority or business related needs of the business, the corresponding business of random access answered.
Optionally, the parameter value is used to indicate the maximum fallback value of the rollback range, the minimum of the rollback range
Value is default value 0.
In this way, receiving user terminal in the embodiment of the present invention and carrying out the transmitted leader sequence code of random access trial
preamble；Corresponding setup parameter, which is attempted, according to this random access does not determine that rollback range, the rollback range are used to supply
User terminal selects the fallback value that random access is attempted next time in this random failure；According to the leader sequence code to
Family terminal sends random access response RAR message, and the RAR message carries the parameter value for being used to indicate the rollback range.
Rollback range is determined due to attempting corresponding setup parameter according to this random access, to realize to different random access
Different rollback ranges is configured, the flexibility of rollback range configuration is improved, different can be reached to different random access configurations
Delay performance.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, the meter
Calculation machine program realizes the step in the processing method of the random access in any one above-mentioned embodiment of the method when being executed by processor
Suddenly.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit
It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs
Purpose.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program code
Medium.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (30)
1. a kind of processing method of random access is applied to user terminal characterized by comprising
If random access attempts failure, according to the corresponding rollback range selection rollback that random access is attempted next time of random access
Value, the rollback range are the value ranges attempting corresponding setup parameter according to this random access and determining；
According to fallback value delay, random access is attempted next time.
If 2. the method according to claim 1, wherein the random access attempt failure, selection next time with
Before the step of fallback value of machine access attempts, the method also includes:
Leader sequence code preamble is sent to network side equipment；
The random access response RAR message that network side equipment is sent according to the leader sequence code is received, the RAR message carries
There is parameter value, the parameter value is for determining the rollback range.
3. according to the method described in claim 2, it is characterized in that, the reception network side equipment is according to the leader sequence code
It is described to be selected next time according to the corresponding rollback range of random access after the step of random access response RAR message of transmission
Before the step of fallback value that random access is attempted, the method also includes:
Contention resolved request is sent to network side equipment；
It receives network side equipment to be responded according to the contention resolved that contention resolved request is sent, the contention resolved response is used for
Whether the random access of indicating user terminal succeeds.
4. according to the method described in claim 2, it is characterized in that, the parameter value is used to indicate maximum fallback value.
5. according to the method described in claim 4, it is characterized in that, the parameter value is by network side equipment according to the setting
The value that parameter determines, it is described to receive random access response RAR message that network side equipment is sent according to the leader sequence code
After step, the method also includes:
The maximum fallback value that the parameter value is indicated is set as the maximum value of the rollback range, the minimum of the rollback range
Value is default value 0.
6. according to the method described in claim 4, it is characterized in that, the reception network side equipment is according to the leader sequence code
After the step of random access response RAR message of transmission, the method also includes:
The maximum fallback value that the parameter value is indicated is zoomed in and out according to target scale ratio or according to target offset carries out
After superposition, it is set as the maximum value of the rollback range, the minimum value of the rollback range is default value 0.
7. according to the method described in claim 6, it is characterized in that, the target scale ratio is true according to the setup parameter
Fixed ratio value.
8. according to the method described in claim 6, it is characterized in that, the target offset amount is determined according to the setup parameter
Offset.
9. the method according to claim 1, wherein the setup parameter includes using in random access procedure
It is the corresponding priority of baseband parameter numerology, random access, random access reason, the corresponding business of random access, random
Access the priority or business related needs of corresponding business.
10. a kind of processing method of random access is applied to network side equipment characterized by comprising
It receives user terminal and carries out the transmitted leader sequence code preamble of random access trial；
Corresponding setup parameter, which is attempted, according to this random access does not determine that rollback range, the rollback range are used for whole for user
Hold the selection fallback value that random access is attempted next time in this random failure；
Random access response RAR message is sent to user terminal according to the leader sequence code, the RAR message, which carries, to be used for
Indicate the parameter value of the rollback range.
11. according to the method described in claim 10, it is characterized in that, described send out according to the leader sequence code to user terminal
After the step of sending random access response RAR message, the method also includes:
Receive the contention resolved request that user terminal is sent；
It is requested to send contention resolved response to user equipment according to the contention resolved, the contention resolved response is used to indicate use
Whether the random access of family terminal succeeds.
12. according to the method for claim 11, which is characterized in that the setup parameter includes using in random access procedure
Baseband parameter numerology, the corresponding business of random access, the priority or business phase of the corresponding business of random access
Pass demand.
13. according to the method for claim 12, which is characterized in that the parameter value is used to indicate the rollback range most
Big fallback value, the minimum value of the rollback range are default value 0.
14. a kind of user terminal characterized by comprising
Selecting module, it is next time random according to the corresponding rollback range selection of random access if attempting failure for random access
The fallback value of access attempts, the rollback range are the ranges attempting corresponding setup parameter according to this random access and determining
Value；
Processing module, for random access to be attempted next time according to fallback value delay.
15. user terminal according to claim 14, which is characterized in that the user terminal further include:
Signal transmitting module, for sending leader sequence code preamble to network side equipment；
First receiving module disappears for receiving network side equipment according to the random access response RAR that the leader sequence code is sent
Breath, the RAR message carry parameter value, and the parameter value is for determining the rollback range.
16. user terminal according to claim 15, which is characterized in that the user terminal further include:
Request sending module, for sending contention resolved request to network side equipment；
Second receiving module is responded for receiving network side equipment according to the contention resolved that contention resolved request is sent, institute
It states contention resolved response and is used to indicate the random access of user terminal and whether succeed.
17. user terminal according to claim 15, which is characterized in that the parameter value is used to indicate maximum fallback value.
18. user terminal according to claim 17, which is characterized in that the parameter value is by network side equipment according to institute
State the value that setup parameter determines, the user terminal further include:
First configuration module, the maximum fallback value for indicating the parameter value are set as the maximum value of the rollback range,
The minimum value of the rollback range is default value 0.
19. user terminal according to claim 17, which is characterized in that the user terminal further include:
Second configuration module, the maximum fallback value for indicating the parameter value zoomed in and out according to target scale ratio or
After according to target offset is overlapped, it is set as the maximum value of the rollback range, the minimum value of the rollback range is default
Value 0.
20. user terminal according to claim 19, which is characterized in that the target scale ratio is according to the setting
The ratio value that parameter determines.
21. user terminal according to claim 19, which is characterized in that the target offset amount is joined according to the setting
The determining offset of number.
22. user terminal according to claim 14, which is characterized in that the setup parameter includes in random access procedure
The corresponding business of baseband parameter numerology, random access, the priority or industry of the corresponding business of random access of use
Business related needs.
23. a kind of network side equipment characterized by comprising
Signal receiving module carries out the transmitted leader sequence code preamble of random access trial for receiving user terminal；
Determining module determines rollback range, the rollback range for attempting corresponding setup parameter according to this random access
For the fallback value that random access is attempted next time to be selected in this random failure for user terminal；
First sending module, it is described for sending random access response RAR message to user terminal according to the leader sequence code
RAR message carries the parameter value for being used to indicate the rollback range.
24. the network side equipment according to claim 23, which is characterized in that the network side equipment further include:
Request receiving module, for receiving the contention resolved request of user terminal transmission；
Second sending module sends contention resolved response, the competition to user equipment for requesting according to the contention resolved
It solves to respond whether the random access for being used to indicate user terminal succeeds.
25. network side equipment according to claim 23, which is characterized in that the setup parameter includes random access procedure
The corresponding business of baseband parameter numerology, random access of middle use, the priority of the corresponding business of random access or
Business related needs.
26. network side equipment according to claim 23, which is characterized in that the parameter value is used to indicate the rollback model
The maximum fallback value enclosed, the minimum value of the rollback range are default value 0.
27. a kind of user terminal, comprising:
One or more processors；
Memory；And
One or more programs, wherein one or more of programs are stored in the memory, and be configured to by
One or more of processors execute, which is characterized in that described program, which is performed, realizes any one of claim 1-9 institute
Step in the processing method for the random access stated.
28. a kind of network side equipment, comprising:
One or more processors；
Memory；And
One or more programs, wherein one or more of programs are stored in the memory, and be configured to by
One or more of processors execute, which is characterized in that described program, which is performed, realizes any one of claim 10-13
Step in the processing method of the random access.
29. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step in the processing method of random access of any of claims 1-9 is realized when being executed by processor.
30. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step in the processing method of random access described in any one of claim 10-13 is realized when being executed by processor.
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