CN106358250A - Hard-switching method and device - Google Patents
Hard-switching method and device Download PDFInfo
- Publication number
- CN106358250A CN106358250A CN201510433891.4A CN201510433891A CN106358250A CN 106358250 A CN106358250 A CN 106358250A CN 201510433891 A CN201510433891 A CN 201510433891A CN 106358250 A CN106358250 A CN 106358250A
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- request message
- direct
- target cell
- cut operation
- handover request
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000013459 approach Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a hard-switching method and device. The hard-switching method includes: receiving switching request information sent by a source cell; judging whether the switching request information contains expand information with a designated special signature or not, and if yes, using the special signature to enter a target cell to complete switching from the source cell to the target cell. By the arrangement, the special signature can be used to access to the target cell randomly, collision with ordinary signatures is avoided, hard-switching efficiency and success probability are increased, and call interrupt generated from switching failure is reduced.
Description
Technical field
The present invention relates to hard-switching technology, more particularly to a kind of method and device of direct-cut operation.
Background technology
Currently, the interior switching mode for td-scdma (Time Division-Synchronous Code Division Multiple Access) system has two kinds:
A kind of is traditional hard handover approach, and terminal, after receiving handover request message, needs in Target cell
Again do a Stochastic accessing, and only could normally be switched to Target cell after obtaining synchronization；But it is this
Hard handover approach suffers from the drawback that, with the expansion of userbase, Stochastic accessing causes the probability of conflict
Become big, be easily caused random access failure, or Stochastic accessing repeatedly after success, but handover delay big and
Impact perception；
Another kind is baton handover mode, and terminal, need not be in Target cell weight after receiving handover request message
Newly do Stochastic accessing, but it is little to be directly calculated target by sfn-sfn otd (delay inequality) measurement
The synchronization control in area, thus be successfully accessed in Target cell；But this switching mode is to source to be switched over
The delay requirement of cell and Target cell is very high, if time delay is exceeded, is easily caused handoff failure.
Content of the invention
It is an object of the invention to provide a kind of method and device of direct-cut operation, can be random using dedicated signatures
Access Target cell, it is to avoid the collision with common signature, thus improving efficiency and the probability of success of direct-cut operation,
Reduce the call drop producing because of handoff failure.
In order to realize above-mentioned purpose, the present invention provides a kind of method of direct-cut operation, comprising:
Receive the handover request message that cell-of-origin sends；
Judge the extension information whether comprising in described handover request message to specify dedicated signatures；
In the case of being to be in judged result, access described Target cell using described dedicated signatures, to complete
From described cell-of-origin to the switching of described Target cell.
Preferably, the method for described direct-cut operation also includes:
In the case of not comprising the extension information of specified dedicated signatures in described handover request message, use
Target cell described in common signature Stochastic accessing.
Preferably, the described extension letter judging whether to comprise in described handover request message to specify dedicated signatures
Also include before the step of breath:
According to described handover request message, determine that switching mode is direct-cut operation.
Preferably, described handover request message is radio bearer reconfiguration message, physical channel message
Or transmission channel reconfiguration message.
The present invention also provides a kind of device of direct-cut operation, comprising:
Receiver module, for receiving the handover request message of cell-of-origin transmission；
Judge module, for judging the extension whether comprising in described handover request message to specify dedicated signatures
Information；
First AM access module, in the case of being to be in judged result, accesses institute using described dedicated signatures
State Target cell, to complete the switching from described cell-of-origin to described Target cell.
Preferably, the device of described direct-cut operation also includes:
Second AM access module, for not comprising to specify the extension of dedicated signatures in described handover request message
In the case of information, using Target cell described in common signature Stochastic accessing.
Preferably, the device of described direct-cut operation also includes:
Determining module, for according to described handover request message, determining that switching mode is direct-cut operation.
Preferably, described handover request message is radio bearer reconfiguration message, physical channel message
Or transmission channel reconfiguration message.
By the technique scheme of the present invention, the beneficial effects of the present invention is:
The method of the direct-cut operation of the present invention, by receiving the handover request message that cell-of-origin sends, and judges institute
State the extension information whether comprising to specify dedicated signatures in handover request message, the feelings being yes in judged result
Under condition, access described Target cell using described dedicated signatures, to complete from described cell-of-origin to described target
The switching of cell, it can be avoided that the collision with common signature, thus improving efficiency and the probability of success of direct-cut operation,
Reduce the call drop producing because of handoff failure.
Brief description
The flow chart that Fig. 1 represents the method for the direct-cut operation of the embodiment of the present invention.
Fig. 2 represents the flow chart that rnc selects the hard handover approach of ue.
The flow chart that Fig. 3 represents the method for the direct-cut operation of the specific embodiment of the invention.
Fig. 4 represents the particular flow sheet completing direct-cut operation using the present invention.
Fig. 5 represents the structural representation of the device of the direct-cut operation of the embodiment of the present invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with accompanying drawing pair
Specific embodiment is described in detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of method of direct-cut operation, for a user equipment
Ue, comprising:
S101: receive the handover request message that cell-of-origin sends；
S102: judge the extension information whether comprising in described handover request message to specify dedicated signatures；
S103: in the case of being to be in judged result, access described Target cell using described dedicated signatures,
To complete the switching from described cell-of-origin to described Target cell.
The method of the direct-cut operation of the embodiment of the present invention, by receiving the handover request message that cell-of-origin sends, and
Judge the extension information whether comprising in described handover request message to specify dedicated signatures, in judged result be
In the case of being, access described Target cell using described dedicated signatures, to complete from described cell-of-origin to institute
State the switching of Target cell, it can be avoided that the collision with common signature, thus improving the efficiency of direct-cut operation and becoming
Work(probability, reduces the call drop producing because of handoff failure.
In practical application, when ue accesses cell-of-origin, radio network controller rnc can obtain described ue
Configuring condition, and judge whether described ue supports by dedicated signatures Stochastic accessing Target cell.Specifically
, such as in 3gpp 25.331 agreement, message body ue capability information and
With regard to ue access capability field ue radio in rrc connection setup complete
In access capability ie, increase an extended field capacity for ho_ncr newly, and adopt boolean
Type, represents equal to false and does not support, and be equal to ture and represent support.In addition, if what rnc obtained
Above-mentioned extended field is not carried then it is assumed that described ue does not support to access mesh by dedicated signatures in ue information
Mark cell.
When described ue does not support, if described ue reports the measurement report of handover event (to represent needs
Carry out cell-of-origin to the switching of Target cell), described rnc can initiate traditional hard handover approach, i.e. ue
Will be by common signature Stochastic accessing Target cell.
And when described ue supports, if described ue reports the measurement report of handover event, described rnc
Can be according to the disturbed condition of current signature it is considered to allow described ue access Target cell by dedicated signatures.Tool
Body, described rnc can calculate within the same time, may initiate the quantity of the ue of switching, and certainly
Determine whether to allow described ue access Target cell by dedicated signatures.I.e. when the affiliated moment initiate switching only
When having described ue, described rnc can allow described ue access Target cell by dedicated signatures；If many
Individual ue initiates to switch simultaneously, but supports to access the only described ue of ue of Target cell by dedicated signatures,
When other ue do not support, described rnc can allow described ue access Target cell by dedicated signatures；
If multiple ue initiate to switch simultaneously, but support to access the ue of Target cell except institute by dedicated signatures
State when also having other ue outside ue, described rnc can select the ue of wherein certain or some supports to pass through specially
Access Target cell with signature, and for other ue, described rnc can initiate traditional hard handover approach.
It should be noted that in practical application, the ue number that dedicated signatures access Target cell can be initiated through simultaneously
Amount is less than and is equal to the dedicated signatures number for switching being configured.
Detailed process can be found in shown in Fig. 2, comprises the steps:
S201: after ue is successfully accessed cell-of-origin, rnc obtains the configuration information of ue；
S202: judge whether ue supports to access Target cell by dedicated signatures, that is, judge capacity for
Whether ho_ncr is equal to true；
S203: if not, rnc initiates traditional hard handover approach；
S204: if it is, rnc considers to allow ue access Target cell by dedicated signatures；
S205: according to the disturbed condition of current signature, decide whether to allow described ue to connect by dedicated signatures
Enter Target cell；
S206: if not, rnc initiates traditional hard handover approach；
S207: if it is, rnc allows ue access Target cell by dedicated signatures.
Specifically, the handover request message that described cell-of-origin sends is that rnc is handed down to ue.Described cut
Changing request message may be radio bearer reconfiguration message (radio bearer reconfiguration), physics
Channel reconfiguration message (physical channel reconfiguration) or transmission channel reconfiguration message
(transport channel reconfiguration), will determine, the present invention does not enter to it according to practical situation
Row limits.
Wherein, the method in order to realize the direct-cut operation of the present invention, the mode taken is by uplink synchronisation
Code, for example, increase extended field at (extending information) sync_ul code in handover request message body
For ho_ncr, described extended field is used for informing its dedicated signatures of specifying of ue, so that ue utilizes institute
State dedicated signatures and complete the switching from cell-of-origin to described Target cell.
In td-scdma system, in order to realize the interaction of message, it is primarily related to 3gpp 25.331
The modification of agreement, for example, increased an extended field uplink dpch info, and described extended field master
It is used for radio bearer reconfiguration, the physical channel being related in handoff procedure
Original uplink dpch in reconfiguration or transport channel reconfiguration message
The extension of info field.
Wherein, the particular content of described extended field is:
It should be noted that this extended field is an illustration, the present invention can not be limited.Example
As for va20 protocol version, described extended field title is just uplink dpch info va20.
In the specific embodiment of the invention, the method for described direct-cut operation also includes:
In the case of not comprising the extension information of specified dedicated signatures in described handover request message, use
Target cell described in common signature Stochastic accessing is it is ensured that from described cell-of-origin to the switching of described Target cell.
Specifically, in the method for the direct-cut operation of the embodiment of the present invention, in the described handover request message of described judgement
Also include before the step of extension information whether comprising specified dedicated signatures:
According to described handover request message, determine that switching mode is direct-cut operation.
Wherein it is determined that mode be, for example, in handover request message, be confirmed whether to comprise synchronization parameter
(synchronization parameters) information, if comprised it is determined that being hard handover approach.
Below, by a specific embodiment, the method for the direct-cut operation to the present invention describes in detail.
Shown in Figure 3, it is the flow chart of the method for the direct-cut operation of the specific embodiment of the invention, including following
Step:
S301:ue reports the test report of handover event；
S302:rnc, according to the disturbed condition of current signature, decides whether to allow described ue by special
Signature accesses Target cell；
S303: by cell-of-origin, rnc issues handover request message to ue；
S304: after ue receives the handover request message of cell-of-origin transmission, confirm to adopt hard handover approach；
S305: judge whether extended field sync_ul code for ho_ncr；
S306: if NO, access Target cell using common signature；
S307: if YES, access Target cell using the dedicated signatures that described extended field is specified.
Shown in Figure 4, it is the particular flow sheet completing direct-cut operation using the present invention.In this switching,
Handover request message is physical channel message (physical channel reconfiguration), described
Extended field sync_ul code for ho_ncr is carried in physical channel message, and described
Extended field sync_ul code for ho_ncr=7, represents in available 8 signatures on Target cell
The 8th sign as dedicated signatures.Meanwhile, the configuration information of Target cell is included for commonly connecing at random
The signature bitmap file sync_ul codes bitmap=01111111 entering, first 7 of instruction is signed for general
Logical Stochastic accessing.
Specifically, complete process such as Fig. 4 of direct-cut operation, comprise the following steps:
S401: cell-of-origin sends physical channel reconfiguration to ue；
S402:ue obtains extended field sync_ul code for ho_ncr=7；
S403:ue uses the 8th signature Stochastic accessing Target cell；
S404:ue feeds back physical channel reconfiguration complete message to cell-of-origin.
So, using dedicated signatures Stochastic accessing Target cell, it is to avoid and common signature clashes, and makes
Obtain ue Stochastic accessing Target cell more sane, have higher success rate.
Shown in Figure 5, the embodiment of the present invention also provides a kind of device of direct-cut operation, and hard shown in Fig. 1
The method of switching is corresponding, and the device of described direct-cut operation includes:
Receiver module 51, for receiving the handover request message of cell-of-origin transmission；
Judge module 52, for judging whether comprise in described handover request message to specify dedicated signatures
Extension information；
First AM access module 53, in the case of being to be in judged result, is connect using described dedicated signatures
Enter described Target cell, to complete the switching from described cell-of-origin to described Target cell.
And described handover request message may be radio bearer reconfiguration message (radio bearer
Reconfiguration), physical channel message (physical channel reconfiguration) or
Transmission channel reconfiguration message (transport channel reconfiguration), true according to practical situation
Fixed, the present invention is not limited thereof.
In the specific embodiment of the invention, the device of described direct-cut operation also includes:
Second AM access module, for not comprising to specify the extension of dedicated signatures in described handover request message
In the case of information, using Target cell described in common signature Stochastic accessing.
Preferably, the device of described direct-cut operation also includes:
Determining module, for according to described handover request message, determining that switching mode is direct-cut operation.
The above is only the preferred embodiment of the present invention it is noted that common for the art
For technical staff, under the premise without departing from the principles of the invention, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of method of direct-cut operation is it is characterised in that include:
Receive the handover request message that cell-of-origin sends；
Judge the extension information whether comprising in described handover request message to specify dedicated signatures；
In the case of being to be in judged result, access described Target cell using described dedicated signatures, to complete
From described cell-of-origin to the switching of described Target cell.
2. the method for direct-cut operation according to claim 1 is it is characterised in that also include:
In the case of not comprising the extension information of specified dedicated signatures in described handover request message, use
Target cell described in common signature Stochastic accessing.
3. the method for direct-cut operation according to claim 1 is it is characterised in that cut described in described judgement
Also include before changing the step of extension information whether comprising to specify dedicated signatures in request message:
According to described handover request message, determine that switching mode is direct-cut operation.
4. the method according to the arbitrary described direct-cut operation of claim 1-3 is it is characterised in that described switching
Request message is that radio bearer reconfiguration message, physical channel message or transmission channel reconfigure and disappear
Breath.
5. a kind of device of direct-cut operation is it is characterised in that include:
Receiver module, for receiving the handover request message of cell-of-origin transmission；
Judge module, for judging the extension whether comprising in described handover request message to specify dedicated signatures
Information；
First AM access module, in the case of being to be in judged result, accesses institute using described dedicated signatures
State Target cell, to complete the switching from described cell-of-origin to described Target cell.
6. the device of direct-cut operation according to claim 5 is it is characterised in that also include:
Second AM access module, for not comprising to specify the extension of dedicated signatures in described handover request message
In the case of information, using Target cell described in common signature Stochastic accessing.
7. the device of direct-cut operation according to claim 5 is it is characterised in that also include:
Determining module, for according to described handover request message, determining that switching mode is direct-cut operation.
8. the device according to the arbitrary described direct-cut operation of claim 5-7 is it is characterised in that described switching
Request message is that radio bearer reconfiguration message, physical channel message or transmission channel reconfigure and disappear
Breath.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433891.4A CN106358250A (en) | 2015-07-22 | 2015-07-22 | Hard-switching method and device |
| PCT/CN2016/070088 WO2017012291A1 (en) | 2015-07-22 | 2016-01-04 | Hard handover method and apparatus, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433891.4A CN106358250A (en) | 2015-07-22 | 2015-07-22 | Hard-switching method and device |
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| Publication Number | Publication Date |
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| CN106358250A true CN106358250A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510433891.4A Pending CN106358250A (en) | 2015-07-22 | 2015-07-22 | Hard-switching method and device |
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| CN (1) | CN106358250A (en) |
| WO (1) | WO2017012291A1 (en) |
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| JP6301885B2 (en) * | 2015-08-31 | 2018-03-28 | 日東電工株式会社 | Polarizing plate with optical compensation layer and organic EL panel using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212791A (en) * | 2006-12-26 | 2008-07-02 | 大唐移动通信设备有限公司 | Method and system for customer premise equipment to access network equipment |
| CN101247647B (en) * | 2007-02-15 | 2011-10-26 | 中兴通讯股份有限公司 | Method for reinforcing ascending link and implementing fast switch-over |
| CN101932052B (en) * | 2009-06-23 | 2016-08-24 | 华为技术有限公司 | A kind of changing method, user terminal and network equipment |
| WO2013074458A1 (en) * | 2011-11-15 | 2013-05-23 | Kyocera Corporation | Node detection in a cellular communication network |
| US20140355507A1 (en) * | 2013-05-28 | 2014-12-04 | Qualcomm Incorporated | Adjusting priority of mbms and femto cells |
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2015
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| WO2017012291A1 (en) | 2017-01-26 |
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Application publication date: 20170125 |