CN101115282B - Method and system for distributing reinforcement uplink dedicated channel resource - Google Patents
Method and system for distributing reinforcement uplink dedicated channel resource Download PDFInfo
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- CN101115282B CN101115282B CN2006100991211A CN200610099121A CN101115282B CN 101115282 B CN101115282 B CN 101115282B CN 2006100991211 A CN2006100991211 A CN 2006100991211A CN 200610099121 A CN200610099121 A CN 200610099121A CN 101115282 B CN101115282 B CN 101115282B
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Abstract
The invention discloses a method of distributing E-DCH resource, which comprises: A.NodeB reporting the expanded capability of supporting E-DCH of the subdistrict to RNC; B.RNC distributing E-DCH resource according to the operation bearing information of UE of the subdistrict and the expanded capability of supporting E-DCH of the subdistrict. The invention also provides a system which can be usedfor distributing E-DCH resource. The implement of the invention can provide service for the operation required by UE in the subdistrict with the capability as the increased frequency-expanded capability after the expansion, thus enhancing the using efficiency of E-DCH resource, improving the flexibility of the system of 3GPP HSUPA and the flexibility of increasing the resource collocating attemper when the system burthen is big, and the system capability is increased.
Description
Technical field
The present invention relates to strengthen the special uplink channel technical field, particularly a kind ofly distribute the method that strengthens uplink dedicated channel resource and a kind ofly can be used for distributing the system that strengthens uplink dedicated channel resource.
Background technology
Third generation collaborative project (3GPP) has been introduced enhancing special uplink channel (E-DCH) in version (Release) 6, the E-DCH technology high speed uplink packet that is otherwise known as inserts (HSUPA).Because this wireless enhanced technology has adopted based on technology such as the automatic repeat requests of up fast packet scheduling, rapid mixing (HARQ) of base station (NodeB) and 2 milliseconds (ms) short frames, therefore E-DCH has advantages such as spectrum efficiency height, uplink speed is fast, propagation delay time is little, thereby more effectively supports the application of grouping data services such as real-time game business, file are uploaded, broadband multimedia services.
In order to support the E-DCH technology, 3GPP has increased radio network controller (RNC), and all support the base station of E-DCH and the function that the sub-district manages to the subordinate, in order to guarantee when the user terminal (UE) of supporting the E-DCH function inserts, can to distribute corresponding E-DCH resource in base station/sub-district of support E-DCH, carry the business of its request with the E-DCH technology.For this reason, NodeB and UE need to report own tenability to E-DCH to RNC, and wherein the capability set that reports of NodeB comprises: whether each home cell among the NodeB (Local Cell) supports E-DCH; The spread-spectrum capability of supporting, i.e. minimal frequency spreading factor (SF); The HARQ that supports merges ability; Whether support the Transmission Time Interval information such as (TTI) of 2ms.The capability set that UE need report comprises: whether support to strengthen Dedicated Physical Data Channel (E-DPDCH); The number of the E-DCH code word that can support simultaneously; Whether support the TTI ability of 2ms etc.The E-DCH capability set of the sub-district that the E-DCH capability set that the RNC among the 3GPP reports when inserting according to UE and its needs use, whether the result who dispatches according to RRM (RRM) determines this UE to adopt E-DCH to transmit and the concrete parameter when using E-DCH.
At present RNC obtains in the base station each sub-district to the tenability of E-DCH by audit (Audit) process and resource status indication (Resource StatusIndication) process, whether RNC preserves each sub-district that NodeB reports to the tenability of E-DCH, as being to insert the reference frame that UE distributes the E-DCH business.
Fig. 1 has provided the audit process between RNC of the prior art and the NodeB.With reference to Fig. 1, this audit process comprises:
Step 101, when NodeB finds that the capability state of oneself changes or NodeB when various situation such as restarting, the resource capability situation that needs notice RNC oneself sends audit request indication (AUDIT REQUIRED INDICATION) message to RNC, requires RNC to initiate audit process.
Step 102, RNC is according to the AUDIT REQUIRED INDICATION message of NodeB, and the AUDIT process is initiated in decision, sends audit request (AUDIT REQUEST) message to NodeB.
In addition, RNC also can initiate the AUDIT process according to the needs of oneself, promptly directly sends AUDIT REQUEST message to NodeB, and need not step 101.
Step 103 is after NodeB receives AUDIT REQUEST message, by the resource status of audit response (AUDIT RESPONSE) message to RNC report oneself.
If one AUDIT RESPONSE message can not be given RNC with all resource reportings among the NodeB, then repeated execution of steps 102 and step 103 are finished until reporting.
Comprised in the AUDIT RESPONSE message that NodeB reports that each home cell is to the tenability of E-DCH among the NodeB.Shown in the table 1 is the partial content of the AUDITRESPONSE message that provides in the 3GPP TS25.433 agreement.Wherein the spread-spectrum capability of E-DCH (E-DCH SFCapability) information element has carried the spread-spectrum capability that each home cell is supported E-DCH among the NodeB, i.e. the minimal frequency spreading factor of its support and combination thereof comprise sf64, sf32, sf16, sf8, sf4,2sf4,2sf2,2sf2 and 2sf4.
Table 1
Shown in Figure 2 is resource status indication process in the prior art.Referring to Fig. 2, this process comprises: when the ability among the NodeB changes or NodeB when restarting, NodeB comprises the tenability of NodeB to E-DCH by the relevant resource status of resource status indication (RESOURCE STATUS INDICATION) message informing RNC in this message.
3GPP TS 25.433 agreements have provided the structure of this message, shown in the table 2 is the partial content of resource status Indication message, and wherein E-DCH SF Capability information element has carried the spread-spectrum capability that each home cell is supported E-DCH among the NodeB, i.e. minimal frequency spreading factor and combination thereof, comprise sf64, sf32, sf16, sf8, sf4,2sf4,2sf2,2sf2 and 2sf4.
Table 2
When the UE connecting system, at first to set up a Radio Resource control (RRC) and connect.With reference to Fig. 3, RRC establishment of connection process comprises the steps:
Step 301, UE at first goes up transmission RRC connection foundation request (RRC CONNECTION SETUP REQUEST) message at public control channel (CCCH) and gives RNC, this message has comprised the reason that UE this time connects, in packet-switched domain (PS) or circuit domain information such as (CS).
Step 302 connects the request of foundation if RNC receives the RRC that UE reports, and will issue RRC and connect and set up (RRC CONNECTION SETUP) message and give UE on CCCH, has comprised in this message for setting up the required resource information of this connection, as channel code etc.
Step 303, after UE receives RRC CONNECTION SETUP message, on the physical channel of appointment, send RRC connection foundation according to the information of indicating in the message and finish (RRCCONNECTION SETUP COMPLETE) message, comprise the various capability sets of UE in this message to RNC.What provide in the physical channel capability information element (Physical channel capability IE) in the UE of this message wireless access capability information element (UE radio accesscapability IE) at present is exactly the tenability of UE to E-DCH, RNC stores the capability set that UE reports, to use for its application traffic assignments resource the time.3GPP TS 25.331 agreements have provided the structure of Physicalchannel capability IE, and shown in the table 3 is the partial content of physical channel capability information element.
Table 3
As 3GPP TS 25.306 agreement defineds, the E-DCH ability that present UE can support is divided into 6 classes altogether, and shown in the table 4 is exactly the classification of E-DCH physical channel under the fdd mode.
Table 4
After RNC receives RAB request for allocation (RABASSIGNMENT REQUEST) message that core net (CN) issues, according to giving the service bearer information that UE distributes that inserts in this message, the traffic assignments E-DCH whether decision is applied for for this UE carries, and wherein service bearer information comprises upstream rate, downstream rate, service quality (QoS) requirement etc.This decision will be determined by following three factors: service bearer information comprises upstream rate, downstream rate, qos requirement etc.; UE is to the tenability of E-DCH; Sub-district, UE place is to the tenability of E-DCH.
If taken all factors into consideration above three factors, decision realizes service in the sub-district at its place with E-DCH for the business of this UE application, to set up (RADIO BEARER SETUP)/radio bearer reprovision (RADIO BEARER RECONFIGURATION)/transmission channel reprovision (TRANSPORT CHANNEL RECONFIGURATION)/physical channel reprovision processes such as (PHYSICAL CHANNEL RECONFIGURATION) notice terminal by radio bearer, between NodeB and UE, set up the E-DCH link.
The spread-spectrum capability that the E-DPDCH of regulation E-DCH correspondence can support among 3GPP 25.211 5.2.1.1 comprises SF=256,7 kinds of 128,64,32,16,8,4 grades at present.And at present in 3GPP 25.433 about NodeB in the spread-spectrum capability that can support of home cell only defined SF=64,5 kinds of 32,16,8,4 grades and correlation combiner thereof.
Therefore, there is following defective in present technology:
1) in above-mentioned audit process and resource status indication process, only support that minimal frequency spreading factor is that the home cell of the base station of SF=256 or SF=128 can not report its ability, thereby regarded as base station and the sub-district that can not support E-DCH by RNC, cause the ability of these base stations to be fully utilized, resource has also been wasted in flexibility when reducing system configuration and networking simultaneously.
2) when load in the present system is big, when UE number that inserts in base station and business datum amount are abundant, the rest processing capacity of NodeB and sub-district, the DCH/E-DCH spread-spectrum capability that for example can support etc. can significantly descend.At this moment the minimum SF factor of the NodeB E-DCH that can support by certain home cell of audit process or resource status indication process notice RNC changes, RNC can redistribute physical resource to the business of the UE requirement of new connecting system and the UE that has adopted HSUPA to serve according to the E-DCH ability that reports, and is guaranteeing to provide the capacity that enlarges system under the UE basic service situation.But the prior art scheme can't correctly be handled the minimal frequency spreading factor that base station cell can support and drop to SF=128 and two kinds of situations of SF=256, has therefore reduced the utilance of E-DCH resource, has also reduced the flexibility of system.
Summary of the invention
In view of this, the present invention proposes a kind of method of the E-DCH of distribution resource, in order to improve the utilance of E-DCH resource.Another object of the present invention is to propose a kind of system that can be used for distributing the E-DCH resource.
According to above-mentioned purpose, the invention provides a kind of method of the E-DCH of distribution resource, this method comprises:
The tenability to E-DCH after A.NodeB expands home cell reports RNC, and wherein, the tenability to E-DCH after the described expansion comprises: minimal frequency spreading factor is 128 spread-spectrum capability, and/or minimal frequency spreading factor is 256 spread-spectrum capability;
B.RNC is according to the service bearer information of UE in this sub-district and the tenability to E-DCH after this cell extension, and the sub-district of the spread-spectrum capability after supporting described expansion is that described UE distributes the E-DCH resource.
Further comprise before the steps A: NodeB finds that home cell drops to the spread-spectrum capability of only supporting increase to the tenability of E-DCH; Perhaps, NodeB restarts.
Alternatively, steps A comprises: A11.RNC sends audit request information to NodeB; A12.NodeB reports RNC by the tenability to E-DCH of audit response message after with described expansion.
Alternatively, further comprise before the steps A 11: NodeB sends audit request Indication message to RNC.
Alternatively, steps A comprises: NodeB reports RNC by the tenability to E-DCH of resource status Indication message after with described expansion.
The present invention also provides a kind of system that can be used for distributing the E-DCH resource, and this system comprises:
NodeB is used for the tenability to E-DCH after the home cell expansion is reported RNC, and wherein, the tenability to E-DCH after the described expansion comprises: minimal frequency spreading factor is 128 spread-spectrum capability, and/or minimal frequency spreading factor is 256 spread-spectrum capability;
UE is positioned at this sub-district, and it is professional to be used for application;
RNC is used for according to the service bearer information of described UE and the tenability to E-DCH after this cell extension, and the sub-district of the spread-spectrum capability after supporting described expansion is that described UE distributes the E-DCH resource.
This system further comprises: core net is used for issuing to RNC according to the application of UE the service bearer information of this UE.
From such scheme as can be seen, because the tenability to E-DCH after the present invention expands home cell among the NodeB sends to RNC, the E-DCH resource of distributing the business of UE in this sub-district to take then by the tenability to E-DCH of RNC after according to cell extension, thereby, can provide service for the sub-district of expanding the back spread-spectrum capability that increases for the business that UE requires in ability, for example under the situation of minimal frequency spreading factor SF=128 and minimal frequency spreading factor SF=256, utilized the unserviceable E-DCH local resource of prior art, therefore improved efficiency of resource to E-DCH, also improved the flexibility of 3GPP HSUPA system group network, increase the flexibility that when system loading is big, improves the resource distribution scheduling, improved power system capacity.
Description of drawings
Fig. 1 is the schematic diagram of audit process in the prior art;
Fig. 2 is the schematic diagram of resource status indication process in the prior art;
Fig. 3 reports schematic diagram to the E-DCH tenability for UE in the prior art;
Fig. 4 is the schematic flow sheet of first embodiment of the invention;
Fig. 5 is the schematic flow sheet of second embodiment of the invention;
Fig. 6 is the system configuration schematic diagram of the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in more detail by the following examples.
First embodiment: will expand to { sf256, sf128, sf64, sf32, sf16, sf8, sf4,2sf4,2sf2,2sf2 and 2sf4} at the spread-spectrum capability collection that home cell among the NodeB can be supported.
With reference to Fig. 4, the first embodiment of the present invention comprises the steps:
Step 401, the tenability to E-DCH after NodeB will expand reports RNC, and the said here tenability to E-DCH refers in particular to the spread-spectrum capability collection, and the spread-spectrum capability after the expansion is { sf256, sf128, sf64, sf32, sf16, sf8, sf4,2sf4,2sf2,2sf2 and 2sf4}.So, during system group network the E-DCH spread-spectrum capability is only supported that { { SF=128, two kinds of base station cells of SF=256} also can be by AUDIT REQUEST process or RESOURCE STATUS INDICATION process notice RNC for SF=256} and only support.
Reporting in this step can be reporting in the audit process, and promptly NodeB reports RNC by the E-DCH SF Capability information element in the AUDITRESPONSE message with the spread-spectrum capability collection.This E-DCH SF Capability information element is as shown in table 5.
Table 5
In addition, reporting in this step also can be reporting in the resource status indication process, promptly by the E-DCH SF Capability information element in the RESOURCE STATUS INDICATION message spread-spectrum capability collection reported RNC.This E-DCH SF Capability information element is as shown in table 5 equally.
Above-mentioned reporting can be NodeB reporting after restarting, and also can be that NodeB finds that the capability state of self reporting after changing, especially NodeB find that tenability to E-DCH drops to { SF=256} or { SF=128 is during SF=256}.
Step 402, RNC is for being fit to the corresponding E-DCH resource of traffic assignments of SF=128 or SF=256.
This comprises two kinds of situations.Situation one: only support that for the E-DCH spread-spectrum capability { { RNC lists the base station of these abilities in the collection of base stations that can support E-DCH for SF=128, two kinds of base station cells of SF=256} for a SF=256} and a support.When the business datum amount that requires to support is very little, as when requiring to support VoIP professional, system also can utilize the base station cell of these two kinds of capability sets to carry corresponding service, made full use of the base station of existing various abilities on the one hand with respect to prior art, can utilize when the lower business need of rate requirement inserts on the other hand that out of use base station cell carries in the original design, thereby improve power system capacity.
Situation two: originally to the E-DCH spread-spectrum capability be supported in base station more than the SF=128 in running because a variety of causes, for example as reason such as hardware/software problem or load be excessive, its spread-spectrum capability that can support only drops to and to support { SF=128, SF=256} or only support { SF=256}.This moment, these base stations can not be used for carrying the HSUPA business in the prior art.And in the present embodiment, RNC can give these base stations the lower traffic assignments of rate requirement, thereby in the E-DCH resource of utilizing fully in the system, has also improved power system capacity simultaneously.
Second embodiment: will expand to { sf128, sf64, sf32, sf16, sf8, sf4,2sf4,2sf2,2sf2 and 2sf4} at the spread-spectrum capability collection that home cell among the NodeB can be supported.
With reference to Fig. 5, the first embodiment of the present invention comprises the steps:
Step 501, the spread-spectrum capability collection after NodeB will expand reports RNC, and the spread-spectrum capability after the expansion is { sf128, sf64, sf32, sf16, sf8, sf4,2sf4,2sf2,2sf2 and 2sf4}.So, the E-DCH spread-spectrum capability is only supported that { base station of SF=128} also can report RNC during system group network.
Reporting in this step can be reporting in the audit process, and promptly NodeB reports RNC by the E-DCH SF Capability information element in the AUDIT RESPONSE message with the spread-spectrum capability collection.This E-DCH SF Capability information element is as shown in table 6.
Table 6
In addition, reporting in this step also can be reporting in the resource status indication process, promptly by the E-DCH SF Capability information element in the RESOURCE STATUS INDICATION message spread-spectrum capability collection reported RNC.This E-DCH SF Capability information element is as shown in table 6 equally.
Above-mentioned reporting can be NodeB reporting after restarting, and also can be that NodeB finds the capability state of self reporting after changing, and especially NodeB finds the tenability of E-DCH is dropped to { during SF=128}.
Here comprise two kinds of situations equally.Situation one: only support that for spread-spectrum capability { base station of SF=128} comprises that promptly minimal frequency spreading factor expands to two kinds of base stations of SF=256 and SF=128, and RNC lists the base station of this ability in the collection of base stations that can support E-DCH.When the business datum amount that requires to support is very little, when for example requiring to support that VoIP is professional, system also can utilize the base station cell of this capability set to carry corresponding service, made full use of the base station cell of existing various abilities on the one hand with respect to prior art, can utilize when the lower business need of rate requirement inserts on the other hand that out of use base station cell carries in the original design, thereby improve power system capacity.
Situation two: increase this selection of SF=128 by the spread-spectrum capability that will support, originally to the E-DCH minimal frequency spreading factor be supported in base station more than the SF=128 in running because a variety of causes, reasons such as for example hardware/software problem or load be excessive, its spread-spectrum capability that can support drop to only supports { SF=128}.This moment, these base stations can not be used for carrying the HSUPA business in original design.And in the present embodiment, RNC can give these base stations the lower traffic assignments of rate requirement, thereby in the resource of utilizing fully in the system, has also improved power system capacity simultaneously.
The said method of the embodiment of the invention can be realized by system as shown in Figure 6.Referring to Fig. 6, this system comprises NodeB and RNC, and the UE that is positioned at the NodeB home cell.Wherein, NodeB is used for and will after the home cell expansion E-DCH tenability be reported RNC; It is professional that UE is used for application; RNC is used for according to after the service bearer information of described UE and this cell extension E-DCH tenability being distributed the E-DCH resource.
As shown in Figure 6, this system also further comprises CN, is used for issuing to RNC according to the application of UE the service bearer information of this UE.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. one kind is distributed the method that strengthens special uplink channel E-DCH resource, it is characterized in that this method comprises:
A. the tenability to E-DCH after base station node B is expanded home cell reports radio network controller (RNC), wherein, the tenability to E-DCH after the described expansion comprises: minimal frequency spreading factor is 128 spread-spectrum capability, and/or minimal frequency spreading factor is 256 spread-spectrum capability;
B.RNC is according to the service bearer information of user terminal UE in this sub-district and the tenability to E-DCH after this cell extension, and the sub-district of the spread-spectrum capability after supporting described expansion is that described UE distributes the E-DCH resource.
2. method according to claim 1 is characterized in that, further comprises before the steps A:
NodeB finds that home cell drops to the spread-spectrum capability of only supporting increase to the tenability of E-DCH;
Perhaps, NodeB restarts.
3. method according to claim 1 is characterized in that steps A comprises:
A11.RNC sends audit request information to NodeB;
A12.NodeB reports RNC by the tenability to E-DCH of audit response message after with described expansion.
4. method according to claim 3 is characterized in that, further comprises before the steps A 11: NodeB sends audit request Indication message to RNC.
5. method according to claim 1 is characterized in that steps A comprises:
NodeB reports RNC by the tenability to E-DCH of resource status Indication message after with described expansion.
6. a system that can be used for distributing the E-DCH resource is characterized in that, this system comprises:
NodeB is used for the tenability to E-DCH after the home cell expansion is reported RNC, and wherein, the tenability to E-DCH after the described expansion comprises: minimal frequency spreading factor is 128 spread-spectrum capability, and/or minimal frequency spreading factor is 256 spread-spectrum capability;
UE is positioned at this sub-district, and it is professional to be used for application;
RNC is used for according to the service bearer information of described UE and the tenability to E-DCH after this cell extension, and the sub-district of the spread-spectrum capability after supporting described expansion is that described UE distributes the E-DCH resource.
7. system according to claim 6 is characterized in that, this system further comprises:
Core net is used for issuing to RNC according to the application of UE the service bearer information of this UE.
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| CN101483881A (en) * | 2008-01-07 | 2009-07-15 | 华为技术有限公司 | Method and apparatus for controlling uplink resource release by user equipment |
| CN101521938B (en) * | 2008-02-25 | 2012-09-05 | 中兴通讯股份有限公司 | Resource allocation method for enhanced-dedicated transmission channel |
| CN101730249B (en) | 2008-10-31 | 2012-11-21 | 华为技术有限公司 | Resource allocation method, device and system |
| CN101754270B (en) * | 2008-12-09 | 2012-11-14 | 电信科学技术研究院 | Method, system and device for realizing the distribution of sources |
| CN101442813B (en) * | 2008-12-25 | 2010-09-22 | 北京天碁科技有限公司 | Ascending synchronous and power control method for HSUPA business initial chain-building stage |
| CN101902779B (en) * | 2009-05-26 | 2013-06-05 | 华为技术有限公司 | Method, device and system for controlling credibility resource allocation of uplink enhanced dedicated channel |
| CN101925156B (en) * | 2009-06-10 | 2012-12-19 | 中兴通讯股份有限公司 | Method and system for ensuring data transmission in uplink pilot channel position change process |
| CN104917600B (en) * | 2009-08-28 | 2018-05-11 | 华为技术有限公司 | Member carrier collocation method, equipment and system under carrier aggregation scene |
| CN102238597B (en) * | 2010-05-07 | 2016-03-30 | 中兴通讯股份有限公司 | Report the method for the channel status of T-CPICH, base station and system |
| CN102137429A (en) * | 2010-08-13 | 2011-07-27 | 华为技术有限公司 | Method, device and system for reporting and updating resource information |
| CN102638899A (en) * | 2011-02-11 | 2012-08-15 | 中兴通讯股份有限公司 | Method and system for establishing service bearer |
| CN105493532A (en) * | 2013-02-22 | 2016-04-13 | 华为技术有限公司 | Data transmission method, equipment and system |
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