CN103037473B - A kind of application method and terminal of terminal-pair up-link wireless public resource - Google Patents
A kind of application method and terminal of terminal-pair up-link wireless public resource Download PDFInfo
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Abstract
The present invention provides a kind of application method of terminal-pair up-link wireless public resource, including：When network side allows terminal to carry out the rollback and updating operation of up-link wireless public resource, the terminal in Cell_FACH states carries out first time random access trial and has selected first kind resource, if it fails, the terminal selects the second class resource to carry out second of random access trial；The terminal attempts result difference according to second of random access and executes different operations；First kind resource and the second class resource are respectively one kind in common E DCH resources and PRACH resources.The present invention also provides a kind of terminals.Present invention optimizes terminal uplink data transmission performances.
Description
Technical field
The present invention relates in technical field of digital mobile communication more particularly to 3G WCDMA and its evolution system HSPA+, eventually
Hold the application method and terminal to up-link wireless public resource.
Background technology
In wideband code division multiple access (WCDMA, Wideband Code Division Multiple Access) network, lead to
Include wireless network with land radio access web (UTRAN, Universal Terrestrial Radio Access Network)
Network controller (RNC, Radio Network Controller) and two kinds of basic network elements of base station NodeB (NB), abbreviation WCDMA nets
Network.(HSPA+High Speed Packet Access) net is accessed in the long-term evolving network high-speed packet based on WCDMA networks
In network, many new functions and characteristic are gradually added thereto with new version from one generation to the next.As high-speed downstream receives
Link packet access (HSDPA, High Speed Downlink Packet Access), the grouping of high speed uplink transmission link connect
Enter (HSUPA, High Speed Uplink Packet Access), multiple antennas multiple-input and multiple-output MIMO technology, overloading wave height
Fast downlink grouped access (MC-HSDPA, Multi Carrier-High speed downlink packet access) and
RRC status (the RRC state radio resource control) administrative mechanism and ability constantly enhanced.This
New function characteristic in a little HSPA+ systems, some enable terminal UE more to efficiently use nothing in proprietary state Cell_DCH
Line specific resource improves to which terminal uplink and downlink data transmission rate is continuously available multiplication；Some makes terminal UE in public state
Cell_FACH can more efficiently use wireless public resource, to terminal uplink and downlink data transmission rate and transmission delay
It can obtain performance improvement.How optimally public using up-link wireless in Cell_FACH states we will discuss terminal below
Resource, so that the up-link wireless public resource of system can obtain most adequately utilizing.
Before HSPA+ versions 8, terminal only has very weak transmitting uplink data ability in Cell_FACH states.Network
By configuring limited a Physical Random Access Channel resource PRACH resource in each serving cell so that terminal exists
It, can only be in a Transmission Time Interval TTI (transmission Time after each successful random access procedure
Interval a data block TB (Transport Block)) is transmitted in length.When this TB end of transmission, no matter its uplink
How transmit result, terminal will all discharge before that used by PRACH resource, used with leaving other terminal for.This
Kind is in the way of PRACH resource progress uplink, the data volume for being relatively suitble to uplink smaller, an especially TB
Just carrying enough.Otherwise terminal must undergo one or more random access procedure again, remaining data, pass through one
Another TB uplinks are sent to network.
In order to enhance terminal in Cell_FACH state upstream data sending performances, since HSPA+ versions 8, part is had the ability
Terminal have it is so-called Cell_FACH states using enhancing dedicated channel ability.Network passes through in each serving cell
32 public enhancing dedicated channel resource Common E-DCH Resource of middle configuration so that terminal can be in each success
Random access procedure after, transmit multiple data block TB in multiple TTI length being endowed.When these TB end of transmissions
Afterwards, terminal will enhance the order of absolute grant channel E-AGCH based on base station down or implicit time mode discharge before make
That Common E-DCH Resource is used with leaving other terminal for.It is this to utilize Common E-DCH
Resource carries out the mode of uplink, and the data volume for being relatively suitble to uplink larger especially must can just be held by multiple TB
It carries.
It is why more efficient than PRACH resource using Common E-DCH Resource, mainly have following several
A reason：
1：The Common E-DCH Resource that Cell_FACH states use, inherit Cell_DCH states E-DCH
Most of feature that Resource is used, as the transmission of terminal uplink data must receive the fast power authorization control of base station, energy
Enough rapid feedbacks according to base station carry out data re-transmission.And it is face using the transmission of the terminal uplink data of PRACH resource
To CRNC, initial transmission power takes open loop rough estimate mode, due to not having wireless chain control layer RLC (Radio Link
Control it) feeds back, so in order to ensure that data send quality, usually conservatively selects smaller TB.
2：There are two types of the corresponding TTI of Common E-DCH Resource, and 2ms and 10ms, wherein 10ms are suitable in terminal
The smaller situation of the net greatest service rate (Headroom power) of row, to enhance TB transmission reliabilities, but TB transmission delays are larger；2ms
The situation larger suitable for the net greatest service rate of terminal uplink (Headroom power), TB transmission delays are smaller.And PRACH
The corresponding TTI of resource also there are two types of, 10ms and 20ms, it is clear that generally more than Common E-DCH Resource delay
Greatly.
3：Since Common E-DCH Resource can be held after a successful random access procedure by terminal
It is continuous to use multiple TTI time spans, and PRACH resource must will discharge after a TTI, it is clear that random access
There is no fully balanced for the time consuming cost of process institute and meaning.
For these reasons, it also provided using Common E-DCH Resource abilities and network when terminal has
Under conditions of related resource, terminal always selects Common E-DCH Resource, and any PRACH is used without considering
resource.Such as terminal has a transmitting uplink data demand, no matter this data volume size cases, first random access mistake
Journey always log on distributes its Common E-DCH Resource.If the failure of first random access procedure (and other are same
When random access terminal occur signal collision) even if first random access procedure succeeded but competition obtain
Had failed when Common E-DCH Resource (Common E-DCH Resource by other success random access
Terminal occupy), terminal has to wait for a period of time and then attempts second random access and Common E-DCH
Resource competitions obtain, and so on, until terminal can successfully send data uplink.
It is existing to be using the basic ideas of the discussion of up-link wireless public resource about terminal backoff (Fallback)：Terminal
Most suitable up-link wireless public resource type is determined according to the size of upstream data amount.If terminal has selected Common E-
DCH Resource, when terminal random access and Common E-DCH Resource competitions obtain after failure, terminal local is certainly
It can attempt to use other kinds of up-link wireless public resource under instructing mainly or in network, it is same without always adhering to
The up-link wireless public resource of type.
By taking Fig. 1 as an example：Network can dynamically configure 3 class up-link wireless public resources in each serving cell at present
Set.From the point of view of transmitting uplink data ability：2ms TTI Common E-DCH Resource are better than 10ms TTI Common
E-DCH Resource are better than PRACH resource (10ms or 20ms), so we claim terminal from by force to weak resource choosing
It is selected as rollback fallback, and the resource selection of terminal from weak to strong is upgrading Upgrade.The strong resource of transmittability is not necessarily
Preferably transmission performance, reason can be brought for example above-mentioned to terminal：Different type resource is suitble to the upper of different data volumes and terminal
The net greatest service rate of row is related, also depends on that (all competition obtains up-link wireless to many terminals at the same time for the load state of this resource collection
Public resource, competition has failed it is necessary to wait for, to mean the decline of terminal uplink data transmission performance).So in order to excellent
Change terminal uplink data transmission performance, terminal or network there must be a set of mechanism, can enable the terminals in 3 resources above
It is flexibly and dynamically selected between set.
Invention content
The technical problem to be solved in the present invention is to provide a kind of application method of terminal-pair up-link wireless public resource and ends
End, so that terminal is optimized in the transmitting uplink data performance of Cell_FACH states.
To solve the above-mentioned problems, the present invention provides a kind of application method of terminal-pair up-link wireless public resource, packets
It includes：
When network side allows terminal to carry out the rollback and updating operation of up-link wireless public resource, it is in Cell_FACH
The terminal of state carries out first time random access trial and has selected first kind resource, if it fails, terminal selection the
Two class resources carry out second of random access trial；
The terminal attempts result difference according to second of random access and executes different operations；
The first kind resource is public enhancing dedicated channel (common E-DCH) resource, and the second class resource is object
Manage random access channel (PRACH) resource；
Alternatively, the first kind resource is PRACH resources, the second class resource is common E-DCH resources.
Further, the above method can also have the characteristics that, if the system that the terminal receives network side transmission
When in message comprising elastic ascending resource selection instruction, then judge that the network side allows terminal to carry out up-link wireless public resource
Rollback and updating operation.
Further, the above method can also have the characteristics that, the first kind resource is common E-DCH resources, institute
When to state the second class resource be PRACH resources, after the first time random access attempts failure, the terminal selects the second class immediately
Resource carries out second of random access and attempts.
Further, the above method can also have the characteristics that, the first kind resource is PRACH resources, the second class money
When source is common E-DCH resources, after the first time random access attempts failure, the backoff to be accessed such as described terminal
After time TBO2, just selects the second class resource to carry out second of random access and attempt, the terminal from network side hair
The TBO2 is obtained in the system message sent.
Further, the above method can also have the characteristics that, the terminal attempts result according to second of random access
Difference executes different operations：
If terminal carries out second of random access trial and success using the second class resource, the terminal is returned automatically
To first kind resource is used, attempts method choice resource according to first time random access and carry out random access trial.
Further, the above method can also have the characteristics that, the terminal select the second class resource carry out second with
When machine access attempts, start timing；
The terminal executes different operations according to second of random access trial result difference：
Still fail if terminal carries out second of random access trial with the second class resource, the terminal is in timing
Between after T ＞ specified times, carry out third time random access trial using the second class resource, and according to according to connecing at random for the second time
Enter to attempt result difference and execute the identical method of different operations, attempting result according to third time random access executes corresponding behaviour
Make.
Further, the above method can also have the characteristics that, the first kind resource is common E-DCH resources, institute
State the second class resource be PRACH resources when, the specified time be TBO2*FPRACH, the system of the terminal from network side transmission
The F is obtained in messagePRACHAnd TBO2.
Further, the above method can also have the characteristics that, the first kind resource is PRACH resources, the second class money
When source is common E-DCH resources, the specified time is TBO1*FEDCH, the FEDCHWith TBO1 by the terminal from network
Side is sent in the system message of the terminal and obtains.
Further, the above method can also have the characteristics that, the method further includes：Terminal local setting is retracted or is risen
Grade state variable, the variable is set as state one when initial, shows that current random access trial is tasted according to first time random access
Method for testing carry out random access trial, first time random access attempt failure after, which is set as state two, show currently with
Machine access attempts enter rollback and upgrade status；After terminal is automatically returned to using first kind resource, which is set as state
One, show that current random access is attempted to attempt method progress random access trial according to first time random access.
The present invention also provides a kind of terminals, including judging unit and random access unit, wherein：
The judging unit is used for：Judge rollback and liter that whether network side allows terminal to carry out up-link wireless public resource
Grade operation；
The random access unit is used for：Allow rollback and the upgrading of terminal progress up-link wireless public resource in network side
Operation, and when terminal be in Cell_FACH states, carry out first time random access trial and selected first kind resource, if mistake
It loses, then the second class resource is selected to carry out second of random access trial；Result difference is attempted according to second of random access to execute
Different operations；
The first kind resource is public enhancing dedicated channel (common E-DCH) resource, and the second class resource is object
Manage random access channel (PRACH) resource；
Alternatively, the first kind resource is PRACH resources, the second class resource is common E-DCH resources.
Further, above-mentioned terminal can also have the characteristics that, the judging unit is for being carried out according to such as under type
Judge：When receiving in the system message of network side transmission comprising elastic ascending resource selection instruction, then the network side is judged
Terminal is allowed to carry out the rollback and updating operation of up-link wireless public resource.
Further, above-mentioned terminal can also have the characteristics that, the random access unit is to be used for：When the first kind
Resource is common E-DCH resources, and when the second class resource is PRACH resources, the first time random access attempts failure
Afterwards, it selects the second class resource to carry out second of random access immediately to attempt.
Further, above-mentioned terminal can also have the characteristics that, the random access unit is to be used for：It is sent from network side
System message in obtain TBO2, when the first kind resource be PRACH resources, the second class resource be common E-DCH resources
When, after the first time random access attempts failure, after waiting backoff window TBO2 to be accessed, second class is just selected to provide
Source carries out second of random access and attempts.
Further, above-mentioned terminal can also have the characteristics that, the random access unit is according to second of random access
Trial result difference executes different operations and includes：
If the random access unit uses second of random access trial and success that the second class resource carries out,
It is described to automatically return to using first kind resource, it attempts method choice resource progress random access according to first time random access and tastes
Examination.
Further, above-mentioned terminal can also have the characteristics that, the random access unit is additionally operable to：The second class is selected to provide
When source carries out second of random access trial, start timing；If using described the connecing at random for the second time of the second class resource progress
Enter and attempt still to fail, then after timing T ＞ specified times, carries out third time random access using the second class resource and taste
Examination, and attempt result difference according to second of random access of the basis and execute the identical method of different operations, according to third
Secondary random access attempts result and executes corresponding operation.
Further, above-mentioned terminal can also have the characteristics that, the random access unit is additionally operable to：In the first kind
Resource is common E-DCH resources, when the second class resource is PRACH resources, is obtained from the system message that network side is sent
Take FPRACHAnd TBO2, according to FPRACHDetermine that the specified time is TBO2*F with TBO2PRACH。
Further, above-mentioned terminal can also have the characteristics that, the random access unit is additionally operable to：In the first kind
Resource is PRACH resources, and when the second class resource is common E-DCH resources, the system for being sent to the terminal from network side disappears
F is obtained in breathEDCHAnd TBO1, according to the FEDCHDetermine that the specified time is TBO1*F with TBO1EDCH。
Further, the terminal further includes state indication unit, is used for：Setting one retracts or upgrade status variable, just
The variable is set as state one when the beginning, shows that current random access is attempted to attempt method progress at random according to first time random access
Access attempts；First time random access attempt failure after, set the variable to state two, show current random access attempt into
Enter rollback and upgrade status；After terminal is automatically returned to using first kind resource, it sets the variable to state one, shows current
Random access is attempted to attempt method progress random access trial according to first time random access.
When terminal uses up-link wireless public resource in the present invention, is converted between different resource, optimize uplink
Data transmission performance.
Description of the drawings
Fig. 1 is relationship between 3 class up-link wireless public resources；
Fig. 2 is the application method flow chart of terminal-pair up-link wireless public resource of the embodiment of the present invention；
Fig. 3 is terminal block diagram of the embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature mutually can arbitrarily combine.
Before making the present invention, TBO1 is that have the terminal using common E-DCH resource resources in random access
After failure, until the stand-by period that random access is attempted next time；And TBO2 is the end using PRACH resource resources
End is after random access failure, until the stand-by period that random access is attempted next time.Physically, the value of TBO1 and TBO2
It can be identical or different.TBO1 and TBO2 is sent to terminal by network side by system message, and parameter is used in the present invention
TBO1 and TBO2, but it is distinct with the prior art, referring specifically to subsequent embodiment.
Following parameter is introduced in the present invention：FEDCHAnd FPRACH, which is sent to terminal by network side by system message.
Following parameter is also introduced in the present invention：Elastic ascending resource selection instruction (Flexible UL Resource
Selection indicator), it is used to indicate whether network side allows terminal in different type up-link wireless public resource set
Between be dynamically selected operation, that is, retract and updating operation.Wherein, in the embodiment of the present invention, the operation behavior of Upgrade and
Fallback is typically to bind together, if that is, acquiescence network allows terminal backoff, allows it in the suitable time simultaneously
Automatic upgrading.Flexible UL Resource Selection indicator are sent to end by network side by system message
End.
Terminal local introduces variable Fallback_or_Upgrade_Status (rollback or upgrade status), which has two
A state, state one and state two, state one can be with value 0 either false states two can with value be 1 or true,
It is of course also possible to take other values, state one and state two can be distinguished.Wherein, the variable-value is state one when initial,
When no matter PRACH common E-DCH carry out the trial of first time random access has failed for terminal selection, later by this hair
Bright rollback or upgrading means goes to another uplink public resource set when carry out subsequent random access and attempt,
Terminal is state two Fallback_or_Upgrade_Status values, indicates that terminal is in the state for retracting or upgrading,
Terminal-pair uplink public resource selection at this time and operation are carried out according to the present invention.When terminal complete the rollback that describes of the present invention or
After escalation process, that uplink public resource set of original first time random access selection is returned to, terminal is Fallback_
Or_Upgrade_Status values are state one, and the selection of original first time of terminal-pair uplink public resource is by terminal at this time
The conditional decisions such as row data feature sizes and the net greatest service rate of uplink.
Network upgrade is related to parameter and the ability of instruction to have transmission the content of present invention, and terminal upgrade connects to have
It receives and parses the content of present invention and be related to parameter and the ability of instruction.Terminal has using the wireless public resource of any one of the above
The ability of type, and it is in Cell_FACH states.
The embodiment of the present invention provides a kind of application method of terminal-pair up-link wireless public resource, including：
When network side allows terminal to carry out the rollback and updating operation of up-link wireless public resource, it is in Cell_FACH
The terminal of state carries out first time random access trial and has selected first kind resource, if it fails, terminal selection the
Two class resources carry out second of random access trial；
The terminal attempts result difference according to second of random access and executes different operations；
The first kind resource is public enhancing dedicated channel (common E-DCH) resource, and the second class resource is object
Manage random access channel (PRACH) resource；
Alternatively, the first kind resource is PRACH resources, the second class resource is common E-DCH resources.
Wherein, if the terminal receives in the system message that network side is sent comprising elastic ascending resource selection instruction
When, then judge rollback and updating operation that the network side allows terminal to carry out up-link wireless public resource.
Wherein, the first kind resource is common E-DCH resources, when the second class resource is PRACH resources, institute
It states first time random access to attempt after failing, the terminal selects the second class resource progress second of random access to taste immediately
Examination.
Wherein, the first kind resource is PRACH resources, when the second class resource is common E-DCH resources, described the
Random access is attempted after failing, and after the backoff window TBO2 to be accessed such as described terminal, second class is just selected to provide
Source carries out second of random access and attempts, and the TBO2 is obtained in the system message that the terminal from network side is sent.
Wherein, the terminal result difference attempted according to second random access execute different operations include：
When the terminal selects the second class resource to carry out second of random access trial, start timing；
If terminal carries out second of random access trial and success using the second class resource, the terminal, which automatically returns to, to be made
With first kind resource, attempts method choice resource according to first time random access and carry out random access trial.
Still fail if terminal carries out second of random access trial with the second class resource, the terminal is in timing
Between after T ＞ specified times, carry out third time random access trial using the second class resource, and according to according to connecing at random for the second time
Enter to attempt result difference and execute the identical method of different operations, attempting result according to third time random access executes corresponding behaviour
Make.
Wherein, the first kind resource is common E-DCH resources, when the second class resource is PRACH resources, institute
It is TBO2*F to state specified timePRACH, the F is obtained in the system message that the terminal from network side is sentPRACHAnd TBO2.When
So, which can not also pass through TBO2*FPRACHMode obtains, and by the network side directly specified time, is disappeared by system
Breath is sent to terminal.
Wherein, the first kind resource is PRACH resources, when the second class resource is common E-DCH resources, the finger
It fixes time as TBO1*FEDCH, the FEDCHIt is sent in the system message of the terminal and is obtained by the terminal from network side with TBO1
It takes.Certainly, which can not also pass through TBO2*FPRACHMode obtains, and by the network side directly specified time, passes through and is
System message is sent to terminal.
Wherein, the method further includes：Terminal local setting retracts or upgrade status variable, and the variable is set as when initial
State one shows that current random access is attempted to attempt method progress random access trial according to first time random access, for the first time
After random access attempts failure, which is set as state two, shows that current random access is attempted to enter rollback and upgrade status；
After terminal is automatically returned to using first kind resource, which is set as state one, shows that current random access is attempted according to the
Random access attempts method and carries out random access trial.
Wherein, terminal is at Idle state (Idle mode), it is also desirable to be connect at random using the progress of up-link wireless public resource is original
Enter, as long as since original random access transmits the signaling of some small data quantities, terminal fixedly uses PRACH resource,
No matter other types resource collection situation and other conditions.
The embodiment of the present invention provides a kind of method that terminal uses up-link wireless public resource, as shown in Fig. 2, including：
Step 1：If network side allows terminal to carry out the rollback operation of up-link wireless public resource, pass through system message
Instruction Flexible UL Resource Selection indicator are sent, and, parameter FEDCHAnd FPRACH, otherwise not
It sends.If giving tacit consent to network allows terminal backoff, also it is allowed to upgrade automatically simultaneously.Initializaing variable is arranged in terminal
Fallback_or_Upgrade_Status=0.
Step 2：As Fallback_or_Upgrade_Status=0, terminal is according to the feature of oneself outgoing data amount
And the case where size and the net head power situation of uplink, select most suitable up-link wireless public resource according to original existing mode
Type is attempted as first time random access.
Step 3, if terminal first time random access attempts failure, and common E-DCH resource have been selected
(2ms or 10ms), then go to step 4-a, if terminal first time random access attempts failure, and has selected PRACH
Resource then goes to step 4-b；
Step 4-a：If terminal first time random access trial selected common E-DCH resource (2ms or
10ms), it but has failed, then terminal selects PRACH resource to carry out second of random access trial immediately, and opens
One timer T withouts waiting for the access backoff window that TBO1 is defined.Variable Fallback_or_ is arranged in terminal
Upgrade_Status=1.
Step 5-a：If terminal second of random access trial and success of PRACH resource, step 6-a is executed, it is no
Then, step 7-a is executed；
Step 6-a, then upgrading is returned to using common E-DCH resource terminal automatically, for upstream data next time
Transmission demand is prepared, and step 2 is returned to, and resets timer T.Variable Fallback_or_Upgrade_ is arranged in terminal
Status=0.
Step 7-a, if terminal is still failed with second of random access trial of PRACH resource, in T ＜
TBO2*FPRACHTime in no longer carry out uplink random access attempts, as T ＞ TBO2*FPRACHLater, terminal uses PRACH
Resource carries out third time random access trial, is then return to step 5-a and resets timer T, at this point, step 5-a sentences
It is that disconnected third time random access is attempted as a result, the result attempted according to third time random access executes step 6-a or step respectively
7-a, wherein the specific moment that third time random access is attempted is to allow terminal to utilize PRACH according to existing temporal aspect
Resource carries out the time point of uplink random access attempts.
Step 4-b：If the trial of terminal first time random access has selected PRACH resource, but has failed, then
Terminal needs to wait for the access backoff windows that define of TBO2, then select common E-DCH resource (2ms or
Second of random access trial 10ms) is carried out, and opens a timer T.Variable Fallback_or_ is arranged in terminal
Upgrade_Status=1.
Step 5-b：If terminal second of random access trial and success of common E-DCH resource, execute
Otherwise step 6-b executes step 7-b；
Step 6-b, terminal are automatically retracted back into using PRACH resource, and sending demand for upstream data next time does standard
It is standby, it returns to step 2 and resets timer T；Variable Fallback_or_Upgrade_Status=0 is arranged in terminal.
Step 7-b, if terminal is still had failed with second of random access trial of common E-DCH resource,
Then in T ＜ TBO1*FEDCHTime in no longer carry out uplink random access attempts, as T ＞ TBO1*FEDCHLater, terminal uses
Common E-DCH resource carry out third time random access trial, are then return to step 5-b and reset timer T.This
When, judge that third time random access attempts in step 5-b as a result, the result attempted according to third time random access executes respectively
Step 6-b or step 7-b, the specific moment that third time random access is attempted are to allow terminal to utilize according to existing temporal aspect
Common E-DCH resources carry out the time point of uplink random access attempts.
Embodiment 1：
Terminal has an ability using the wireless public resource set of any one of the above, and in cell edge and
Cell_FACH states carry out small data quantity Web Site Interactive business, but upstream data packet is larger every time.
Step 101：Network can find 10ms TTI common E-DCH from the public-measurement report of base station at this time
Resource resource collections load it is larger, but PRACH resource resource collections load it is smaller, i.e., different type uplink without
There is load unbalanced state in line public resource set, to network allow terminal carry out up-link wireless public resource rollback and
Updating operation then sends instruction Flexible UL Resource Selection indicator, and ginseng by system message
Number FEDCH=1 and FPRACH=4.Variable Fallback_or_Upgrade_Status=0 is arranged in terminal initial.
Step 102：When Fallback_or_Upgrade_Status=0, terminal is according to oneself business due-out
According to the case where measure feature size and the net head power situation of uplink, most suitable 10ms TTI common E-DCH are selected
Resource is attempted as first time random access.
Step 103：Since the load of 10ms TTI common E-DCH resource resource collections is very big, terminal the
Random access trial has selected common E-DCH resource to have failed, then terminal selects PRACH immediately
Resource carries out second of random access trial, and opens a timer T, withouts waiting for the access that TBO1 is defined and returns
Move back the stand-by period.Variable Fallback_or_Upgrade_Status=1 is arranged in terminal.
Step 104：Terminal second of random access trial and success of PRACH resource.Terminal will upgrade back automatically
To common E-DCH resource resource collections are used, prepare for the transmission of next upstream data, and reset timer
T returns to step 102.Variable Fallback_or_Upgrade_Status=0 is arranged in terminal.
Embodiment 2
Terminal has an ability using the wireless public resource set of any one of the above, and in center of housing estate and
Cell_FACH states, carry out VPN (Virtual Personal Networks) business, and each uplink data sending packet is all smaller.
Step 201：Network can find PRACH resource resource collections from the public-measurement report of base station at this time
Load it is larger, but 2ms TTI common E-DCH resource resource collections load it is smaller, to network allow terminal into
The updating operation of row up-link wireless public resource then sends instruction Flexible UL Resource by system message
Selection indicator and parameter FEDCH=2 and FPRACH=3.Variable Fallback_or_ is arranged in terminal initial
Upgrade_Status=0.
Step 202：As Fallback_or_Upgrade_Status=0, terminal is according to oneself business outgoing data amount
The case where size and the net head power situation of uplink, select most suitable PRACH resource, are tasted as first time random access
Examination.
Step 203：Since the load of PRACH resource resource collections is very big, terminal first time random access is attempted
PRACH resource have been selected to have failed, then terminal needs the access backoff window for waiting for TBO2 to define, and then selects
2ms TTI common E-DCH resource carry out second of random access trial, and open a timer T.Terminal
Variable Fallback_or_Upgrade_Status=1 is set.
Step 204：Terminal is still lost with second of random access trial of 2ms TTI common E-DCH resource
It loses.Terminal is in next T ＜ TBO1*FEDCHIn time window, it is no longer attempt to third time random access；As T ＞ TBO1*FEDCHIt
Afterwards, terminal will continue to use 2ms TTI common E-DCH resource resources at the time of suitable, carry out third time and connect at random
Enter to attempt, and resets timer T.If it is successful, returning to step 202, variable Fallback_or_Upgrade_ is arranged in terminal
Status=0.Otherwise step 204 is unsuccessfully continued back at.
The embodiment of the present invention also provides a kind of terminal, as shown in figure 3, including judging unit, random access unit and state
Indicating unit, wherein：
The judging unit is used for：Judge rollback and liter that whether network side allows terminal to carry out up-link wireless public resource
Grade operation；
The random access unit is used for：Allow rollback and the upgrading of terminal progress up-link wireless public resource in network side
Operation, and when terminal be in Cell_FACH states, carry out first time random access trial and selected first kind resource, if mistake
It loses, then the second class resource is selected to carry out second of random access trial；Result difference is attempted according to second of random access to execute
Different operations；
The first kind resource is public enhancing dedicated channel (common E-DCH) resource, and the second class resource is object
Manage random access channel (PRACH) resource；
Alternatively, the first kind resource is PRACH resources, the second class resource is common E-DCH resources.
Wherein, the judging unit is for according to as under type is judged：The system for receiving network side transmission disappears
When in breath comprising elastic ascending resource selection instruction, then judge that the network side allows terminal to carry out up-link wireless public resource
Rollback and updating operation.
Wherein, the random access unit is to be used for：When the first kind resource is common E-DCH resources, described the
When two class resources are PRACH resources, after the first time random access attempts failure, select immediately described in the progress of the second class resource
Second of random access is attempted.
Wherein, the random access unit is to be used for：TBO2 is obtained from the system message that network side is sent, when described the
A kind of resource is PRACH resources, and when the second class resource is common E-DCH resources, the first time random access attempts failure
Afterwards, it after waiting backoff window TBO2 to be accessed, just selects the second class resource to carry out second of random access and attempts.
Wherein, the random access unit attempts result difference according to second of random access and executes different operation packets
It includes：
If the random access unit uses second of random access trial and success that the second class resource carries out,
It is described to automatically return to using first kind resource, it attempts method choice resource progress random access according to first time random access and tastes
Examination.
Wherein, the random access unit is additionally operable to：When the second class resource being selected to carry out second of random access trial, open
Begin periodically；If second of random access trial carried out using the second class resource is still failed, in timing T ＞
After specified time, third time random access trial is carried out using the second class resource, and connect at random for the second time according to the basis
Enter to attempt result difference and execute the identical method of different operations, attempting result according to third time random access executes corresponding behaviour
Make.Specified time is with specific reference to embodiment of the method.
The state indication unit is used for：Setting one retracts or upgrade status variable, and the variable is set as state when initial
One, show that current random access is attempted to attempt method progress random access trial according to first time random access；It is random for the first time
After access attempts failure, it sets the variable to state two, shows that current random access is attempted to enter rollback and upgrade status；When
Terminal is automatically returned to using after first kind resource, sets the variable to state one, shows that current random access is attempted according to the
Random access attempts method and carries out random access trial.
Certainly, the invention may also have other embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding change and deformations, but these corresponding change and deformations can be made according to the present invention by knowing those skilled in the art
The protection domain of appended claims of the invention should all be belonged to.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, the form that hardware may be used in each module/unit in above-described embodiment are realized, the shape of software function module can also be used
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
Claims (18)
1. a kind of application method of terminal-pair up-link wireless public resource, which is characterized in that including：
When network side allows terminal to carry out the rollback and updating operation of up-link wireless public resource, in Cell_FACH states
The terminal carries out first time random access trial and has selected first kind resource, if it fails, the terminal selects the second class
Resource carries out second of random access trial；
The terminal attempts result difference according to second of random access and executes different operations；
When the first kind resource be public enhancing dedicated channel common E-DCH resources, the second class resource be physics with
When machine accesses channel PRACH resources；
The terminal executes different operations according to second of random access trial result difference：
If terminal carries out second of random access trial and success using the second class resource, the terminal, which automatically returns to, to be made
With first kind resource, attempts method choice resource according to first time random access and carry out random access trial；Alternatively, described first
Class resource is PRACH resources, and the second class resource is common E-DCH resources.
2. the method as described in claim 1, which is characterized in that if the terminal receives the system message of network side transmission
In comprising elastic ascending resource selection instruction when, then judge that the network side allows terminal to carry out returning for up-link wireless public resource
It moves back and updating operation.
3. the method as described in claim 1, which is characterized in that the first kind resource is common E-DCH resources, described
When second class resource is PRACH resources, after the first time random access attempts failure, the terminal selects the second class to provide immediately
Source carries out second of random access and attempts.
4. the method as described in claim 1, which is characterized in that the first kind resource is PRACH resources, and the second class resource is
When common E-DCH resources, after the first time random access attempts failure, the backoff window to be accessed such as described terminal
After TBO2, just selects the second class resource to carry out second of random access and attempt, what the terminal from network side was sent
The TBO2 is obtained in system message.
5. the method as described in claim 1, which is characterized in that
When the first kind resource is PRACH resources, and the second class resource is common E-DCH resources；
The terminal executes different operations according to second of random access trial result difference：
If terminal carries out second of random access trial and success using the second class resource, the terminal, which automatically returns to, to be made
With first kind resource, attempts method choice resource according to first time random access and carry out random access trial.
6. method as claimed in claim 5, which is characterized in that
When the terminal selects the second class resource to carry out second of random access trial, start timing；
The terminal executes different operations according to second of random access trial result difference：
Still fail if terminal carries out second of random access trial with the second class resource, the terminal is in timing T>
After specified time, third time random access trial is carried out using the second class resource, and taste according to according to second of random access
Test result difference executes the identical method of different operations, and attempting result according to third time random access executes corresponding operation.
7. method as claimed in claim 6, which is characterized in that the first kind resource is common E-DCH resources, described
When second class resource is PRACH resources, the specified time is TBO2*FPRACH, the system that the terminal from network side is sent disappears
The F is obtained in breathPRACHAnd TBO2.
8. method as claimed in claim 6, which is characterized in that the first kind resource is PRACH resources, and the second class resource is
When common E-DCH resources, the specified time is TBO1*FEDCH, the FEDCHIt is sent out by the terminal from network side with TBO1
It gives in the system message of the terminal and obtains.
9. such as method described in claim 5 or 6, which is characterized in that the method further includes：Terminal local setting is retracted or is risen
Grade state variable, the variable is set as state one when initial, shows that current random access trial is tasted according to first time random access
Method for testing carry out random access trial, first time random access attempt failure after, which is set as state two, show currently with
Machine access attempts enter rollback and upgrade status；After terminal is automatically returned to using first kind resource, which is set as state
One, show that current random access is attempted to attempt method progress random access trial according to first time random access.
10. a kind of terminal, which is characterized in that including judging unit and random access unit, wherein：
The judging unit is used for：Judge rollback and upgrading behaviour that whether network side allows terminal to carry out up-link wireless public resource
Make；
The random access unit is used for：Allow terminal to carry out the rollback of up-link wireless public resource in network side and upgrade behaviour
Make, and when terminal be in Cell_FACH states, progress first time random access trial and has selected first kind resource, if it fails,
The second class resource is then selected to carry out second of random access trial；Result difference, which is attempted, according to second of random access executes difference
Operation；
When the first kind resource be public enhancing dedicated channel common E-DCH resources, the second class resource be physics with
When machine accesses channel PRACH resources；
The random access unit executes different operations according to second of random access trial result difference：
If the random access unit uses second of random access trial and success that the second class resource carries out, automatically
It returns to and uses first kind resource, attempting method choice resource according to first time random access carries out random access trial；Alternatively, institute
It is PRACH resources to state first kind resource, and the second class resource is common E-DCH resources.
11. terminal as claimed in claim 10, which is characterized in that the judging unit is for according to as under type is sentenced
It is disconnected：When receiving in the system message of network side transmission comprising elastic ascending resource selection instruction, then judge that the network side is permitted
Perhaps terminal carries out the rollback and updating operation of up-link wireless public resource.
12. terminal as claimed in claim 10, which is characterized in that the random access unit is to be used for：When the first kind
Resource is common E-DCH resources, and when the second class resource is PRACH resources, the first time random access attempts failure
Afterwards, it selects the second class resource to carry out second of random access immediately to attempt.
13. terminal as claimed in claim 10, which is characterized in that the random access unit is to be used for：It is sent from network side
System message in obtain TBO2, when the first kind resource be PRACH resources, the second class resource be common E-DCH resources
When, after the first time random access attempts failure, after waiting backoff window TBO2 to be accessed, second class is just selected to provide
Source carries out second of random access and attempts.
14. terminal as claimed in claim 10, which is characterized in that
When the first kind resource is PRACH resources, and the second class resource is common E-DCH resources；The random access list
Member executes different operations according to second of random access trial result difference：
If the random access unit uses second of random access trial and success that the second class resource carries out, described
It automatically returns to and uses first kind resource, attempting method choice resource according to first time random access carries out random access trial.
15. terminal as claimed in claim 14, which is characterized in that
The random access unit is additionally operable to：When the second class resource being selected to carry out second of random access trial, start timing；Such as
Second of random access trial that fruit is carried out using the second class resource still fails, then in timing T>Specified time it
Afterwards, third time random access trial is carried out using the second class resource, and result is attempted according to second of random access of the basis
Difference executes the different identical methods of operation, and attempting result according to third time random access executes corresponding operation.
16. terminal as claimed in claim 15, which is characterized in that
The random access unit is additionally operable to：It is common E-DCH resources, the second class resource in the first kind resource
For PRACH resources when, from network side send system message in obtain FPRACHAnd TBO2, according to FPRACHDescribed in TBO2 determinations
Specified time is TBO2*FPRACH。
17. terminal as claimed in claim 15, which is characterized in that
The random access unit is additionally operable to：It is PRACH resources in the first kind resource, the second class resource is common E-
When DCH resources, F is obtained from the system message that network side is sent to the terminalEDCHAnd TBO1, according to the FEDCHAnd TBO1
Determine that the specified time is TBO1*FEDCH。
18. the terminal as described in claims 14 or 15, which is characterized in that the terminal further includes state indication unit, is used for：
Setting one retracts or upgrade status variable, and the variable is set as state one when initial, shows that current random access is attempted according to the
Random access attempts method and carries out random access trial；After first time random access attempts failure, set the variable to
State two shows that current random access is attempted to enter rollback and upgrade status；After terminal is automatically returned to using first kind resource,
It sets the variable to state one, shows that current random access is attempted to be connect at random according to first time random access trial method
Enter to attempt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110293686.4A CN103037473B (en) | 2011-09-30 | 2011-09-30 | A kind of application method and terminal of terminal-pair up-link wireless public resource |
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| CN201110293686.4A CN103037473B (en) | 2011-09-30 | 2011-09-30 | A kind of application method and terminal of terminal-pair up-link wireless public resource |
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| CN107690200B (en) * | 2016-08-05 | 2019-12-10 | 电信科学技术研究院 | random access method and terminal |
| WO2020186408A1 (en) * | 2019-03-15 | 2020-09-24 | Oppo广东移动通信有限公司 | Resource management method, apparatus, and storage medium |
| CN111867125B (en) * | 2019-04-29 | 2022-12-06 | 华为技术有限公司 | Random access method and device |
| CN111083706B (en) * | 2019-12-13 | 2020-09-22 | 夏侯淑琴 | Electronic device designated via secondary backoff in network access and corresponding access method |
Citations (3)
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|---|---|---|---|---|
| CN201312388Y (en) * | 2007-10-29 | 2009-09-16 | 交互数字专利控股公司 | Wireless transmitting and receiving unit for detecting radio link failure |
| CN101616488A (en) * | 2008-06-23 | 2009-12-30 | 华为技术有限公司 | The control method that a kind of enhancing inserts at random, Apparatus and system |
| CN101919298A (en) * | 2008-01-04 | 2010-12-15 | 交互数字专利控股公司 | Method and apparatus for performing an enhanced random access channel procedure in a CELL_FACH state |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201312388Y (en) * | 2007-10-29 | 2009-09-16 | 交互数字专利控股公司 | Wireless transmitting and receiving unit for detecting radio link failure |
| CN101919298A (en) * | 2008-01-04 | 2010-12-15 | 交互数字专利控股公司 | Method and apparatus for performing an enhanced random access channel procedure in a CELL_FACH state |
| CN101616488A (en) * | 2008-06-23 | 2009-12-30 | 华为技术有限公司 | The control method that a kind of enhancing inserts at random, Apparatus and system |
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