CN106535354A - Random access control method and device for mobile terminal - Google Patents
Random access control method and device for mobile terminal Download PDFInfo
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- CN106535354A CN106535354A CN201510578434.4A CN201510578434A CN106535354A CN 106535354 A CN106535354 A CN 106535354A CN 201510578434 A CN201510578434 A CN 201510578434A CN 106535354 A CN106535354 A CN 106535354A
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- signature
- signature group
- common
- dch resource
- available signatures
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Classifications
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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
- H04W74/0841—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment
- H04W74/085—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment collision avoidance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
Abstract
The invention discloses a random access control method and device for a mobile terminal. The control method comprises the following steps: grouping available signature sequences according to the number of public E-DCH (Enhanced Dedicated Channel) resources configured on a network side to obtain a plurality of signature groups; when the presence of a random access request is detected, selecting any signature group from signature groups which are marked to be unused, selecting any available signature sequence from the selected signature group, and updating a mark of the selected signature group as used; trying to perform random access on the selected available signature sequence in order to get whether the public E-DCH resources are selected successfully or not; and when the public E-DCH resources are selected successfully, transmitting uplink data on the selected public E-DCH resources. Through adoption of the method and the device, the problem of failure in random access of UE since a plurality of index numbers correspond to the same public E-DCH resource can be solved.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of mobile terminal random access control method and
Device.
Background technology
3GPP Release 8 introduce enhanced random access channel (Random Access Channel,
RACH) function, user terminal (User Equipment, UE) is in cell forward access channel (Cell
Forward Access Channel, Cell-FACH) enhancement type special channel (Enhanced can be used under state
Dedicated Channel, E-DCH) carry out the transmission of upstream data.
In terms of enhanced RACH, network side is configured with Y bar common E-DCH resources, in existing protocol,
Y maximums are configurable to 32.Meanwhile, network side is configured with several available signatures sequences, and each can use
Signature sequence all corresponds to call number Index in the signature list that network side is configured.UE is in Stochastic accessing
During, can be transmitted according to the configuration of network side, one available signatures sequence of random selection.
In existing protocol, to Y remainders, i.e., the rule for selecting common E-DCH resource is with Index
Index%Y.However, when Index is bigger than Y, you can bar of the signature number than common E-DCH resource
When number is more, it may appear that multiple Index correspondences same common E-DCH resources.
When a common E-DCH resource is taken by certain UE, the common E-DCH resource cannot just be distributed
Give other UE.When the Index that network side is multiple UE configurations is mapped to same common E-DCH resource,
Inevitably result in only one of which UE can use the common E-DCH resource, other UE random access failures,
Even other UE can be allowed to be mistakenly considered the cell to be not suitable for being resident, be a cell for forbidding accessing.
The content of the invention
The embodiment of the present invention solve how to be avoided because of a plurality of Index correspondence same common E-DCH resources
And cause the problem of UE random access failures.
For solving the above problems, the embodiment of the present invention provides a kind of mobile terminal random access control method,
Including：
According to the common E-DCH resource number of network side configuration, available signatures sequence is grouped, is obtained
To multiple signature groups；
When random access request is detected the presence of, arbitrary label are selected in untapped signature group is labeled as
Name group, selects arbitrary available signatures sequence in the signature group chosen, and by the signature group chosen
Flag update is to use；
Stochastic accessing trial is carried out using the available signatures sequence chosen, it is public to know whether to be successfully selected
E-DCH resource；
When common E-DCH resource is successfully selected, carry out in the common E-DCH resource chosen up
Data is activation.
Optionally, the mobile terminal random access control method also includes：When the mark of all signature groups
It is when using, the mark of all signature groups is reset to unused.
Optionally, the common E-DCH resource number according to network side configuration, to available signatures sequence
It is grouped, including：By the available signatures sequence corresponding call number to the common E-DCH resource
Complementation result identical call number corresponding available signatures sequence is divided to same signature group by number complementation.
Optionally, also include：When selecting common E-DCH resource to fail, mark in the updated is
Any signature group is selected in the signature group for using, and selects arbitrary available signatures sequence in the signature group chosen,
And Stochastic accessing trial is carried out using the available signatures sequence chosen again.
Optionally, when uplink service request is detected the presence of, described in execution, untapped label are being labeled as
The operation of any signature group is selected in name group.
The embodiment of the present invention additionally provides a kind of mobile terminal Stochastic accessing control device, including：
Grouped element, for the common E-DCH resource configured according to network side, enters to available signatures sequence
Row packet, obtains multiple signature groups；
Select unit, for when random access request is detected the presence of, being labeled as untapped signature
Any signature group is selected in group, selects arbitrary available signatures sequence in the signature group chosen, and will be described
The flag update of the signature group chosen is to use；
Stochastic accessing unit, for adopting the available signatures sequence chosen to carry out Stochastic accessing trial, to obtain
Know whether be successfully selected common E-DCH resource；
Upstream data transmitting element, it is for when common E-DCH resource is successfully selected, public what is chosen
Upstream data transmission is carried out in E-DCH resource.
Optionally, the mobile terminal Stochastic accessing control device also includes：Reset cell, for working as
The mark for having signature group is when using, the mark of all signature groups is reset to unused.
Optionally, the grouped element is used for：By the available signatures sequence corresponding call number to described
Common E-DCH resource number complementation, complementation result identical call number corresponding available signatures sequence is drawn
Divide to same signature group.
Optionally, the select unit is additionally operable to：When selecting common E-DCH resource to fail, updating
Mark afterwards is selection any signature group in signature group, in the signature group chosen selects arbitrary
Available signatures sequence.
Optionally, the select unit for when detecting the presence of uplink service and asking, perform it is described
The operation of any signature group is selected in being labeled as untapped signature group.
Compared with prior art, the technical scheme of the embodiment of the present invention has advantages below：
Multiple available signatures sequences are grouped, when random access request is detected the presence of, from arbitrary
It is individual be labeled as untapped signature group in select any one available signatures sequence to carry out Stochastic accessing trial.When
When untapped signature group is selected, is marked and be revised as using.Due to multiple available signatures groups
Sequence is grouped, rather than by a plurality of Index correspondence same common E-DCH resources, therefore can be with
Avoid a plurality of Index correspondence same common E-DCH resources and cause the problem of UE random access failures.
Further, when all signature groups are marked as using, the mark of all signature groups is reset
It is unused, such that it is able to guarantee that follow-up random access request can choose available signatures sequence.
Additionally, when mobile terminal Stochastic accessing attempts failure, being labeled as untapped signature from another
Select an available signatures sequence to carry out Stochastic accessing trial in group, repeatedly trial can be avoided to access same
Individual E-DCH resource and cause the situation of access failure to occur, improve mobile terminal access success rate.
Description of the drawings
Fig. 1 is a kind of flow chart of the mobile terminal random access control method in the embodiment of the present invention；
Fig. 2 is the flow chart of another kind of mobile terminal random access control method in the embodiment of the present invention；
Fig. 3 is a kind of structural representation of the mobile terminal Stochastic accessing control device in the embodiment of the present invention.
Specific embodiment
In prior art, when a common E-DCH resource is taken by certain UE, the common E-DCH
Resource cannot just distribute to other UE.When network side configures multiple Index, to be mapped to same public
During E-DCH resource, inevitably result in only one of which UE and can use the common E-DCH resource, and nothing
Method distributes to other UE.When the common E-DCH resource is occupied, if others UE have selected with
When the related multiple Index of the common E-DCH resource carry out Stochastic accessing, then may continuous several times mistake
Losing causes UE be accessed in this cell.Even UE can be allowed to be mistakenly considered the cell to be not suitable for being resident,
It is a cell for forbidding accessing.
In embodiments of the present invention, multiple available signatures sequences are grouped, it is random when detecting the presence of
During access request, it is labeled as in untapped signature group, selecting any one available signatures sequence to enter from any one
Row Stochastic accessing is attempted.When untapped signature group is selected, is marked and be revised as using.By
In being grouped to multiple available signatures group sequences, rather than will be a plurality of Index correspondence sames public
E-DCH resource, therefore a plurality of Index correspondence same common E-DCH resources can be avoided and caused
The problem of UE random access failures.
It is understandable for enabling the above-mentioned purpose of the embodiment of the present invention, feature and advantage to become apparent from, tie below
Close accompanying drawing to be described in detail the specific embodiment of the present invention.
A kind of mobile terminal random access control method is embodiments provided, with reference to Fig. 1, is below led to
Cross concrete steps to be described in detail.
Step S101, according to the common E-DCH resource number of network side configuration, enters to available signatures sequence
Row packet, obtains multiple signature groups.
In actual applications, for UE and network side, using enhanced RACH (Enhanced
Random Access Channel, E-RACH) function when, UE and network side must simultaneously support enhancing
Type RACH.Network side configures some common E-DCH resources in system message.When UE initiate with
When machine is accessed, according to UE at AICH Acquisition Indication Channel (Acquisition Indication Channel, AICH)
On the available signatures sequence index that receives derive indirectly common E-DCH resource that UE will be used.
In being embodied as, UE is by reading the system message that network side is issued, you can know available signatures
Sequence and common E-DCH the Resources list.Can be according to common E-DCH the Resources list to available signatures sequence
Row are grouped, to obtain multiple signature groups.
In embodiments of the present invention, can be using the corresponding call number of available signatures sequence to common E-DCH
Resource number carries out complementation computing, and complementation result identical call number corresponding available signatures sequence is divided
To same signature group, by that analogy, you can obtain the corresponding available signatures sequence of all of signature group.
For example, the number of available signatures sequence is set as 16, the corresponding call number of available signatures sequence
The scope of Index is 0～15, and common E-DCH resource number is 10, then successively by 0～15 pair of 10 complementation,
Complementation result identical available signatures sequence is divided to into same signature group, 10 signature groups can be obtained,
It is followed successively by signature group 0～9.Wherein：The available signatures sequence that call number Index is 0 and 10 is divided to
The available signatures sequence that call number Index is 1 and 11 is divided to signature group 1, with such by signature group 0
Push away, the available signatures sequence that call number Index is 9 is divided to into signature group 9.In each signature group can
Can be 1 with the number of signature sequence, or 2.
It is understood that in other embodiments of the present invention, can also there are other methods, it is right to come
Available signatures sequence is grouped, and is not repeated herein.
Step S102, detects whether there is random access request.
In being embodied as, when detecting mobile terminal and there is uplink service and ask, judge to exist random
Access request.When there is random access request, execution step S103；Conversely, ought not exist connecing at random
When entering to ask, end operation flow process.
Step S103, selects any signature group, in untapped signature group is labeled as in the signature chosen
Arbitrary available signatures sequence is selected in group.
In being embodied as, all of signature group can be arranged and be marked.The mark of setting includes：Make
With, be not used.When signature group is selected, the mark of signature group can be to use；When signature group still
When not selected, the mark of signature group can be unused.
When random access request is detected the presence of, can be labeled as selecting in untapped signature group from all
Any signature group is selected, arbitrary available signatures sequence is selected in any signature group chosen.It is available choosing
After signature sequence, this can be chosen signature group flag update for using, to have represented the signature group
Jing is chosen by mobile terminal.
For example, current markers include 2～signature group of signature group 7 for untapped signature group.Then detecting
When there is random access request, signature group 7 is selected in 2～signature group of signature group 7, is wrapped in signature group 7
Available signatures sequence 7 is included, then chooses available signatures sequence 7, execution step S104, and by signature group 7
Flag update for using.
In embodiments of the present invention, when mobile terminal is after multiple random access operation is performed, Ke Nengcun
In the situation that all of signature group is marked as having used, now, if detect mobile terminal again depositing
In random access request, as current all of signature group is marked as having used, there is no mark
For untapped signature group, therefore mobile terminal cannot select signature group.
For above-mentioned situation, when all signature groups are marked as using, can be by all signature groups
Mark reset to it is unused so that when subsequently there is random access request in mobile terminal, can
Signature group is chosen normally.
Step S104, carries out Stochastic accessing trial using the available signatures sequence chosen.
In being embodied as, Stochastic accessing trial can be carried out according to existing agreement.When Stochastic accessing is tasted
When trying successfully, it is possible to determine that be successfully selected certain common E-DCH resource, can be with execution step S105.
In actual applications, can also there is the scene that Stochastic accessing attempts failure.When Stochastic accessing is attempted
During failure, it is meant that the corresponding common E-DCH resource of available signatures sequence in the signature group currently chosen
May be taken by other mobile terminals.In such a case, it is possible to again be labeled as it is untapped
Any signature group is selected in signature group, then selects arbitrary available signatures sequence in the signature group chosen, and
Re-execute step S104.
For example, the current signature group for selecting is signature group 7, and available signatures sequence is available signatures sequence 7,
And be labeled as using by signature group 7.Carrying out failing when Stochastic accessing is attempted, it is meant that available signatures
7 corresponding common E-DCH resource of sequence is taken by other mobile terminals.Therefore, it can from mark
For reselecting any signature group in untapped 2～signature group of signature group 6, and in the signature group chosen
After selecting arbitrary available signatures sequence, step S104 is re-executed.
It can be seen that, when mobile terminal Stochastic accessing attempts failure, untapped signature is labeled as from another
Select an available signatures sequence to carry out Stochastic accessing trial in group, repeatedly trial can be avoided to access same
Individual E-DCH resource and cause the situation of access failure to occur, such that it is able to improve mobile terminal access it is up
The success rate of link.
Step S105, when common E-DCH resource is successfully selected, in the common E-DCH resource chosen
On carry out upstream data transmission.
In being embodied as, after common E-DCH resource is successfully selected, can according to existing agreement,
Upstream data transmission is carried out in the common E-DCH resource chosen, so as to realize ul transmissions.
As can be seen here, multiple available signatures sequences are grouped, when detecting the presence of random access request
When, it is labeled as in untapped signature group, selecting any one available signatures sequence to be connect at random from any one
Enter to attempt.When untapped signature group is selected, is marked and be revised as using.Due to multiple
Available signatures group sequence is grouped, rather than by a plurality of Index correspondence same common E-DCH resources,
Therefore a plurality of Index correspondence same common E-DCH resources can be avoided and causes UE Stochastic accessings to lose
The problem for losing.
With reference to Fig. 2, the mobile terminal random access control method to providing in the above embodiment of the present invention below
It is illustrated.
Step S201, judges whether UE opens Stochastic accessing control function.
In embodiments of the present invention, can be in advance in UE using the Stochastic accessing provided in above-described embodiment
Control method, user can choose whether to open Stochastic accessing control function.When UE opens Stochastic accessing control
During function processed, execution step S202；Otherwise, end operation flow process.
Step S202, judges the whether successful persistent districts of UE.When UE success persistent districts, perform
Step S203；When UE fails persistent district, end operation flow process.
Step S203, judges whether cell and UE support enhanced RACH.
Due to the present invention is directed enhanced RACH, therefore, only when cell and UE support to strengthen
During type RACH, execution step S204；Otherwise, end operation flow process.
Step S204, is grouped to available signatures sequence.
Step S205, detects whether there is random access request.
When there is random access request, execution step S206；When there is no random access request, knot
Beam operating process.
In embodiments of the present invention, when detect UE exist uplink service ask when, judge exist connect at random
Enter request.
Step S206, selects any signature group, in untapped signature group is labeled as in the signature chosen
Arbitrary available signatures sequence is selected in group, and is to use by the flag update of the signature group chosen.
Step S207, carries out Stochastic accessing trial using the available signatures sequence chosen.
Step S208, judges whether Stochastic accessing is attempted successful.When Stochastic accessing trial and success, judge
It is successfully selected common E-DCH resource, execution step S209；When Stochastic accessing attempts failure, hold again
Row step S206.
Step S209, carries out upstream data transmission in the common E-DCH resource chosen.
With reference to Fig. 3, the embodiment of the present invention additionally provides a kind of mobile terminal Stochastic accessing control device 30,
Including：Grouped element 301, select unit 302, Stochastic accessing unit 303 and upstream data send single
Unit 304, wherein：
Grouped element 301, for the common E-DCH resource configured according to network side, to available signatures sequence
Row are grouped, and obtain multiple signature groups；
Select unit 302, for when random access request is detected the presence of, being labeled as untapped label
Any signature group is selected in name group, arbitrary available signatures sequence is selected in the signature group chosen, and by institute
The flag update of the signature group chosen is stated for using；
Stochastic accessing unit 303, for adopting the available signatures sequence chosen to carry out Stochastic accessing trial, with
Know whether to be successfully selected common E-DCH resource；
Upstream data transmitting element 304, for when common E-DCH resource is successfully selected, what is chosen
Upstream data transmission is carried out in common E-DCH resource.
In being embodied as, the mobile terminal Stochastic accessing control device 30 also includes：Reset cell 305,
For when the mark of all signature groups is and uses, the mark of all signature groups being reset to unused.
In being embodied as, the grouped element 301 can be used for：Should by the available signatures sequence pair
Call number to the common E-DCH resource number complementation, will be complementation result identical call number corresponding
Available signatures sequence is divided to same signature group.
In being embodied as, the select unit 302 can be also used for：When selection common E-DCH resource
During failure, mark in the updated is selection any signature group in signature group, in the label chosen
Arbitrary available signatures sequence is selected in name group.
In being embodied as, the select unit 302 can be used for detecting the presence of uplink service request
When, perform the operation for selecting any signature group in untapped signature group is labeled as.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Suddenly can be by program to instruct the hardware of correlation to complete, the program can be stored in a computer can
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (10)
1. a kind of mobile terminal random access control method, it is characterised in that include：
According to the common E-DCH resource number of network side configuration, available signatures sequence is grouped, obtains many
Individual signature group；
When random access request is detected the presence of, any signature group is selected in untapped signature group is labeled as,
Select arbitrary available signatures sequence in the signature group chosen, and by the mark of the signature group chosen more
New is to use；
Stochastic accessing trial is carried out using the available signatures sequence chosen, it is public to know whether to be successfully selected
E-DCH resource；
When common E-DCH resource is successfully selected, upstream data is carried out in the common E-DCH resource chosen
Send.
2. mobile terminal random access control method as claimed in claim 1, it is characterised in that also include：
When the mark of all signature groups is to be used, the mark of all signature groups is reset to unused.
3. mobile terminal random access control method as claimed in claim 2, it is characterised in that the basis
The common E-DCH resource number of network side configuration, is grouped to available signatures sequence, including：By institute
The corresponding call number of available signatures sequence is stated to the common E-DCH resource number complementation, by complementation result
The corresponding available signatures sequence of identical call number is divided to same signature group.
4. mobile terminal random access control method as claimed in claim 2, it is characterised in that also include：
When selecting common E-DCH resource to fail, mark in the updated is selection times in signature group
One signature group, selects arbitrary available signatures sequence in the signature group chosen, and again can using what is chosen
Stochastic accessing trial is carried out with signature sequence.
5. mobile terminal random access control method as claimed in claim 2, it is characterised in that when detecting
When there is uplink service request, the selection any signature group in untapped signature group is labeled as is performed
Operation.
6. a kind of mobile terminal Stochastic accessing control device, it is characterised in that include：
Grouped element, for the common E-DCH resource configured according to network side, is carried out to available signatures sequence point
Group, obtains multiple signature groups；
Select unit, for when random access request is detected the presence of, in untapped signature group is labeled as
Any signature group is selected, arbitrary available signatures sequence is selected in the signature group chosen, and is chosen described
Signature group flag update for using；
Stochastic accessing unit, for adopting the available signatures sequence chosen to carry out Stochastic accessing trial, to know be
It is no to be successfully selected common E-DCH resource；
Upstream data transmitting element, it is for when common E-DCH resource is successfully selected, public what is chosen
Upstream data transmission is carried out in E-DCH resource.
7. mobile terminal Stochastic accessing control device as claimed in claim 6, it is characterised in that also include：
Reset cell, for when the mark of all signature groups is and uses, by the mark weight of all signature groups
It is set to unused.
8. mobile terminal Stochastic accessing control device as claimed in claim 7, it is characterised in that the packet
Unit is used for：The available signatures sequence corresponding call number is asked to the common E-DCH resource number
It is remaining, complementation result identical call number corresponding available signatures sequence is divided to into same signature group.
9. mobile terminal Stochastic accessing control device as claimed in claim 7, it is characterised in that the selection
Unit is additionally operable to：When selecting common E-DCH resource to fail, mark in the updated is label
Any signature group is selected in name group, arbitrary available signatures sequence is selected in the signature group chosen.
10. mobile terminal Stochastic accessing control device as claimed in claim 7, it is characterised in that the selection
Unit for when detect the presence of uplink service ask when, perform described in be labeled as untapped signature group
The middle operation for selecting any signature group.
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| CN110839250A (en) * | 2019-11-01 | 2020-02-25 | Oppo（重庆）智能科技有限公司 | GSM random access method and related product |
| WO2020118559A1 (en) * | 2018-12-12 | 2020-06-18 | Oppo广东移动通信有限公司 | Random access method, terminal device, and access network device |
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| CN106535354B (en) | 2019-09-27 |
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