CN108616874A - A kind of RRC reconstructions optimization method - Google Patents
A kind of RRC reconstructions optimization method Download PDFInfo
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- CN108616874A CN108616874A CN201611190010.1A CN201611190010A CN108616874A CN 108616874 A CN108616874 A CN 108616874A CN 201611190010 A CN201611190010 A CN 201611190010A CN 108616874 A CN108616874 A CN 108616874A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005457 optimization Methods 0.000 title claims abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000012545 processing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 102100039292 Cbp/p300-interacting transactivator 1 Human genes 0.000 description 1
- 101000888413 Homo sapiens Cbp/p300-interacting transactivator 1 Proteins 0.000 description 1
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 101150039363 SIB2 gene Proteins 0.000 description 1
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- 239000000686 essence Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
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- 235000009566 rice Nutrition 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This application discloses a kind of wireless heterogeneous networks (RRC) to rebuild optimization method, including：Newly-increased RRC rebuilds contention resolved timer, and the RRC rebuilds maximum occurrences of the maximum occurrences more than contention resolved timer of contention resolved timer；Network side identifies UE abilities, for supporting RRC to rebuild the UE of contention resolved timer, rebuilds contention resolved timer using RRC and carries out RRC reconstructions, for not supporting RRC to rebuild the UE of contention resolved timer, RRC reconstructions are carried out using contention resolved timer.Using technical solution disclosed in the present application, cutting off rate can be reduced, improves RRC reconstruction success rates, especially for S1/X2 mouthfuls of scenes for using microwave transmission of system side, gain is apparent.
Description
Technical field
This application involves mobile communication technology field, more particularly to a kind of RRC rebuilds optimization method.
Background technology
In current 3GPP agreements, wireless heterogeneous networks (RRC：Radio Resource Control) in reconstruction process
The contention resolved timer that uses of random access procedure, with other random access contention resolved timers one competition-based
Sample provides that value, value are as follows by agreement：
mac-ContentionResolutionTimer ENUMERATED{
sf8,sf16,sf24,sf32,sf40,sf48,
sf56,sf64}
Mac-ContentionResolutionTimer is described as in 3GPP TS 36.321 [6]：Contention resolved is fixed
When device, be worth as unit of subframe, value sf8 corresponds to 8 subframes, sf16 corresponding to 16 subframes, and so on.
It being provided according to agreement, the maximum occurrences of the random access contention resolved timer in RRC reconstruction process are 64ms, this
It requires in rebuilding processing procedure, UE and network side send MSG1 from UE initiating random access procedures and to network side, arrive net
Network side is that terminal carries out wirelessly and transfer resource configuration, then it includes that competition resolves and identifies MAC Control Element and again to receive to UE
Build message MSG4 be less than 64ms just it is feasible.And network side may lead to that in 64ms reconstruction can not be issued and disappears due to various reasons
Breath constitutes competition and solves timer expiry, reconstruction failure.
The reason of reconstruction failure, which may be network side internal abnormality, leads to rebuild processing time for length, and S1 mouthfuls or X2 mouthfuls use
The transmission time that microwave transmission scene rebuilds related news across station is long.And the maximum of contention resolved timer as defined in agreement takes
Value is 64ms, can not be extended.
Invention content
This application provides a kind of RRC to rebuild optimization method, to improve RRC reconstruction success rates.
The application has supplied a kind of radio resource control RRC to rebuild optimization method, including：
Newly-increased RRC rebuilds contention resolved timer, and the maximum occurrences that the RRC rebuilds contention resolved timer are more than competition
Solve the maximum occurrences of timer；
Network side identifies UE abilities, and for supporting RRC to rebuild the UE of contention resolved timer, competition solution is rebuild using RRC
Certainly timer carry out RRC reconstructions, for do not support RRC rebuild contention resolved timer UE, using contention resolved timer into
Row RRC is rebuild.
Preferably, the newly-increased RRC reconstructions contention resolved timer includes：It is competing to increase RRC reconstructions newly in system information block
It strives and solves timer cell.
Preferably, the network side identification UE abilities include：
Network side sends system information block by system message to UE, wherein when carrying RRC reconstruction contention resolved timers
It is long；
The lateral UE of network sends UE capability query messages；
Network side receives the UE ability informations UECapabilityInformation of UE feedbacks, wherein the UE-
It has increased support RRC in EUTRA-Capability cells newly and has rebuild the instruction of contention resolved timer ability；
Network side rebuilds contention resolved timer ability according to the support RRC and indicates to know whether UE supports RRC to rebuild
Contention resolved timer ability.
Preferably, the value that the RRC rebuilds contention resolved timer includes：sf8,sf16,sf24,sf32,sf40,
Sf48, sf56, sf64, sf128, sf256, sf512, sf1024, wherein：
Value sf8 corresponds to 8 subframes；
Value sf16 corresponds to 16 subframes；
Value sf24 corresponds to 24 subframes；
Value sf32 corresponds to 32 subframes；
Value sf40 corresponds to 40 subframes；
Value sf48 corresponds to 48 subframes；
Value sf56 corresponds to 56 subframes；
Value sf64 corresponds to 64 subframes；
Value sf128 corresponds to 128 subframes；
Value sf256 corresponds to 256 subframes；
Value sf512 corresponds to 512 subframes；
Value sf1024 corresponds to 1024 subframes.
As seen from the above technical solution, RRC provided by the present application rebuilds optimization method and rebuilds contention resolved by newly-increased RRC
Timer parameter can reduce cutting off rate, greatly improve RRC reconstruction success rates, micro- especially for S1/X2 mouthfuls of uses of system side
The scene of wave transmission, gain are apparent.
Description of the drawings
Fig. 1 is that UE of the present invention obtains RRC reconstruction contention resolved timer ginsengs from the system message comprising system information block
Processing flow schematic diagram after number.
Specific implementation mode
To make the object, technical solution and advantage of the application be more clearly understood, develop simultaneously embodiment referring to the drawings, right
The application is described in further detail.
The present invention increases RRC newly in network side and rebuilds contention resolved timer parameter (mac-ContentionResolutionT
Imer-RrcConnectionReestab), the value of the parameter increases on the basis of the value of existing contention resolved timer
128ms, 256ms, 512ms and 1024ms, and eating dishes without rice or wine the parameter to be broadcast to UE.Network side identifies UE abilities, for supporting
RRC rebuilds the UE of contention resolved timer, and contention resolved timer mac-ContentionResolutionTi is rebuild using RRC
Mer-RrcConnectionReestab still uses mac- for not supporting RRC to rebuild the UE of contention resolved timer
ContentionResolutionTimer, to ensure compatibility.
Technical scheme is described in detail below by a preferred embodiment.
One, cell is increased newly
It increases RRC newly in system information block (SIB) and rebuilds contention resolved timer cell.Preferably, can be in SIB2
Newly-increased contention resolved timer cell, as follows：
Compared to existing contention resolved timer, sf128, sf256, sf512, sf1024 are increased, wherein value sf128
Corresponding to 128 subframes, value sf256 corresponds to 256 subframes, and value sf512 corresponds to 512 subframes, and value sf1024 corresponds to 1024 sons
Frame.
In UE-EUTRA-Capability (user equipment Universal Mobile Communication System land wireless access capability) cell
It is newly-increased that RRC is supported to rebuild the instruction of contention resolved timer ability, shown in following oblique line portion：
Two, process flow
Fig. 1 is that UE obtains RRC reconstruction contention resolved timer parameters (mac- from the system message comprising system information block
ContentionResolutionTimer-RrcConnectionReestab the processing flow schematic diagram after), the process flow
Including：
Step 101:UE obtains the system message (SystemInformation) for including system information block, obtains RRC reconstructions
Contention resolved timer duration.
Step 103：After EUTRAN sends UE capability query messages (UECapabilityEnquiry) to UE, UE is received
Ability information (UECapabilityInformation), therefrom knows whether UE supports RRC to rebuild contention resolved timer energy
Power.
Step 105:The UE of connected state is initiated due to Radio Link Failure, handover failure or RRC are re-matched unsuccessfully etc.
RRC connection reconstructions ask (RRCConnectionReestablishmentRequest).
Step 108：After EUTRAN receives message, the preparation for rebuilding the resources such as required wireless and transmission is carried out, if
EUTRAN is configured with RRC and rebuilds contention resolved timer duration and according to the extendedContentionResoluti of UE abilities
On-r13 indicates that the UE supports RRC to rebuild contention resolved timer, then rebuilds in contention resolved timer duration and send in RRC
RRCConnectionReestablishment to UE.
The explanation of related news involved in Fig. 1：
SystemInformation is see 36331 5.2.2 of 3GPP agreements；
RRCConnectionReestablishmentRequest/RRCConnectionReestab lishment see
36331 5.3.7 of 3GPP agreements；
UECapabilityEnquiry/UECapabilityInformation is see 36331 5.6.3 of agreement.
Using above-mentioned technical proposal provided by the present application so that RRC re-establishes success rate and greatly improves, especially for being
Side S1/X2 mouthfuls of scene for using microwave transmission of system, gain are apparent.
The foregoing is merely the preferred embodiments of the application, not limiting the application, all essences in the application
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of the application protection god.
Claims (4)
1. a kind of radio resource control RRC rebuilds optimization method, which is characterized in that including：
Newly-increased RRC rebuilds contention resolved timer, and the maximum occurrences that the RRC rebuilds contention resolved timer are more than contention resolved
The maximum occurrences of timer；
Network side identifies UE abilities, and for supporting RRC to rebuild the UE of contention resolved timer, it is fixed to rebuild contention resolved using RRC
When device carry out RRC reconstructions, for do not support RRC rebuild contention resolved timer UE, use contention resolved timer carry out RRC
It rebuilds.
2. according to the method described in claim 1, it is characterized in that：
The newly-increased RRC rebuilds contention resolved timer：It increases RRC newly in system information block and rebuilds contention resolved timer
Cell.
3. according to the method described in claim 2, it is characterized in that, network side identification UE abilities include：
Network side sends system information block by system message to UE, wherein carrying RRC rebuilds contention resolved timer duration；
The lateral UE of network sends UE capability query messages；
Network side receives the UE ability informations UECapabilityInformation of UE feedbacks, wherein the UE-EUTRA-
It has increased support RRC in Capability cells newly and has rebuild the instruction of contention resolved timer ability；
Network side rebuilds contention resolved timer ability according to the support RRC and indicates to know whether UE supports RRC to rebuild competition
Solve timer ability.
4. method according to any one of claims 1 to 3, it is characterised in that：
The value that the RRC rebuilds contention resolved timer includes：sf8,sf16,sf24,sf32,sf40,sf48,sf56,
Sf64, sf128, sf256, sf512, sf1024, wherein：
Value sf8 corresponds to 8 subframes；
Value sf16 corresponds to 16 subframes；
Value sf24 corresponds to 24 subframes；
Value sf32 corresponds to 32 subframes；
Value sf40 corresponds to 40 subframes；
Value sf48 corresponds to 48 subframes；
Value sf56 corresponds to 56 subframes；
Value sf64 corresponds to 64 subframes；
Value sf128 corresponds to 128 subframes；
Value sf256 corresponds to 256 subframes；
Value sf512 corresponds to 512 subframes；
Value sf1024 corresponds to 1024 subframes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190010.1A CN108616874B (en) | 2016-12-21 | 2016-12-21 | RRC reconstruction optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190010.1A CN108616874B (en) | 2016-12-21 | 2016-12-21 | RRC reconstruction optimization method |
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| Publication Number | Publication Date |
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| CN108616874A true CN108616874A (en) | 2018-10-02 |
| CN108616874B CN108616874B (en) | 2021-05-14 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448181A (en) * | 2010-09-30 | 2012-05-09 | 重庆重邮信科通信技术有限公司 | Competition solution random access method for TDD-LTE (time division duplex-long term evolution) system |
| CN103580777A (en) * | 2012-07-20 | 2014-02-12 | 中兴通讯股份有限公司 | Method, device and system for controlling auxiliary information by UE |
| CN103918200A (en) * | 2012-10-28 | 2014-07-09 | Lg电子株式会社 | Operation with various timers in a wireless communication system |
| CN104159319A (en) * | 2014-08-26 | 2014-11-19 | 大唐移动通信设备有限公司 | Method of transmitting competition solution information and base station |
| WO2015062470A1 (en) * | 2013-10-29 | 2015-05-07 | 电信科学技术研究院 | Method and apparatus for timing maintenance under coverage enhancement mechanism |
-
2016
- 2016-12-21 CN CN201611190010.1A patent/CN108616874B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448181A (en) * | 2010-09-30 | 2012-05-09 | 重庆重邮信科通信技术有限公司 | Competition solution random access method for TDD-LTE (time division duplex-long term evolution) system |
| CN103580777A (en) * | 2012-07-20 | 2014-02-12 | 中兴通讯股份有限公司 | Method, device and system for controlling auxiliary information by UE |
| CN103918200A (en) * | 2012-10-28 | 2014-07-09 | Lg电子株式会社 | Operation with various timers in a wireless communication system |
| WO2015062470A1 (en) * | 2013-10-29 | 2015-05-07 | 电信科学技术研究院 | Method and apparatus for timing maintenance under coverage enhancement mechanism |
| CN104159319A (en) * | 2014-08-26 | 2014-11-19 | 大唐移动通信设备有限公司 | Method of transmitting competition solution information and base station |
Non-Patent Citations (2)
| Title |
|---|
| 3GPP: "《ETSI TS 136 331 v12.10.0》", 31 August 2016 * |
| 魏嘉宏: "《會議報告》", 4 May 2016 * |
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