CN101094166B - Method for distributing wireless resource for multi-carrier high-speed downlink packet access - Google Patents
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- CN101094166B CN101094166B CN2006100893401A CN200610089340A CN101094166B CN 101094166 B CN101094166 B CN 101094166B CN 2006100893401 A CN2006100893401 A CN 2006100893401A CN 200610089340 A CN200610089340 A CN 200610089340A CN 101094166 B CN101094166 B CN 101094166B
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Abstract
The invention relates to a method for distributing wireless resources for multi-carrier high-speed downlink packet access, which is applied to a TD-SCDMA system with multi-carrier resources and applied HSDPA technology, and comprises the following steps: step 1, RNC sends QoS information relative to the service requested by user terminal to Node B; and step 2, the Node B initially allocates HSDPA carrier resources for the request according to the QoS information and the load conditions of the HSDPA channels on all the carriers, and transmits the allocation result to the RNC. In the invention, RNC sends QoS information related to requested service to Node B, which is used as important basis for Node B to perform HSDPA carrier resource initial allocation, thereby optimizing the carrier resource initial allocation of Node B.
Description
Technical field
The present invention relates to field of wireless communication; Particularly relate to and insert at TD SDMA that (TimeDivision Code Synchronization Division Multiple Access TD-SCDMA) in the system is the method for multi carrier wave high-speed downlink packet access HSDPA (High Speed Downlink Packet Access) distributing radio resource.
Background technology
A disequilibrium that important feature is the traffic carrying capacity of professional uplink and downlink link of 3-G (Generation Three mobile communication system), the traffic carrying capacity of down link will general traffic carrying capacity greater than up link.To this demand, 3GPP (3rd Generation Partnership Project, third generation gpp) has introduced high speed downlink packet access (HSDPA:High Speed Downlink Packet Access) characteristic in the 3G standard.In the HSDPA characteristic; Through introducing adaptive coding and modulating (AMC:Adaptive Modulation andCoding), mixing automatic repeat requests (HARQ:Hybrid Automatic RetransmissionRequest) technology and the relevant technology that reduces the network processes time delay; The downlink grouping traffic speed of higher rate is provided, improves spectrum utilization efficiency.
In the HSDPA technology, newly introduced HS-DSCH---high speed downlink shared channel HS-DSCH (HighSpeed Downl ink Shared Channel) and MAC-hs sublayer.MAC-hs realizes in NodeB at network side, and each sub-district has a MAC-hs entity, and MAC-hs not only accomplishes the HS-DSCH data processing, is responsible for the management and the scheduling of HSDPA radio physical resource simultaneously.
In the HSDPA of TD-SCDMA system technology; The new wireless physical channel resource of introducing comprises: high-speed physical downlink is shared physical channel HS-PDSCH (High Speed Physical Downl ink SharedChannel), high-speed shared control channel HS-SCCH (Shared Control Channel for HS-DSCH) and high-speed shared information channel HS-SICH (Shared Information Channel for HS-DSCH).These three kinds of physical channels all are that the TTI (Transmission Time Interval, Transmission Time Interval) with 5ms dispatches distribution for unit.Wherein, HS-PDSCH is used for carrying user's business datum; HS-SCCH is used for carrying the phase related control information that control UE receives the HS-PDSCH channel; HS-SICH is used for carrying the feedback information of UE to its reception HS-PDSCH of Node B transmission channel, and each bar HS-SCCH channel is fixing corresponding one by one with a HS-SICH channel.Above-mentioned physical channel resources in sub-district is that the mode with resource pool is that a plurality of users share with the mode that time-division or sign indicating number divide in the sub-district.
In the HSDPA of TD-SCDMA system technology; The distribution method of wireless physical channel resource is: set up in the process at radio bearer; Network side is 1～4 HS-SCCH of a UE static configuration, constitutes 1 HS-SCCH collection, and configuration simultaneously and every HS-SCCH be HS-SICH one to one.In carrying out data transmission procedure; Each TTI (5ms); In the Node of network side B; To certain UE, in above-mentioned set, select the HS-SCCH control information that HS-PDSCH is relevant to send to UE by MAC-hs, UE sends the reception condition feedback information to Node B on a corresponding HS-SICH channel of this HS-SCCH.
Above-described is about the HSPDA of TD-SCDMA system technology in the present 3GPP agreement.TD-SCDMA system in the 3GPP agreement is a single-carrier system at present; I.e. corresponding carrier frequency in sub-district; The spectrum width of single carrier frequency is 1.6M, because TD-SCDMA adopts the TDD mode of relative arrowband, the theoretical peak speed on the single carrier wave can reach 2.8Mbps; Available descending peak rate is on the low side on the single carrier wave, can not satisfy the demand of operator to the high-speed packet data service in future well.Therefore, need be that some technological improvements are carried out on the basis with single-carrier cell HSDPA technology, to satisfy operator's demand higher to high-speed packet data service.Adopting the multi-carrier HSDPA technology is good solution; Multi-carrier HSDPA is exactly to allow the packet of a user's HSDPA on a plurality of carrier waves, to transmit simultaneously; Node B can send on a plurality of carrier waves simultaneously, and UE can receive the data of HSDPA on a plurality of carrier waves.Owing on the single carrier wave peak traffic speed of 2.8Mbps can be provided, so under the multicarrier situation, can improve single user's service rate greatly.In theory, N carrier wave worked simultaneously and can be provided professional up to N*2.8Mbps for the user.
A kind of feasible multi-carrier HSDPA scheme is following: be the basis with multicarrier (N frequency) technology in " 2GHz TD-SCDMA digital mobile cellular telecommunication net " series standard that HSDPA is technological and the China national Ministry of Information Industry issues of the TD-SCDMA system in the 3GPP standard; System sets up a multi-carrier district; The above-mentioned HSDPA physical channel resources of configuration on a plurality of carrier waves; At network side, create a MAC-hs processing entities and manage HS-PDSCH channel resource on above-mentioned a plurality of carrier wave and many HS-SCCH and HS-SICH channel resource; When being user terminal original allocation HSDPA resource; By MAC-hs is that user terminal distributes one or more carrier resource; And be that each allocation of carriers is a pair of or many related with it to resource with the HS-SICH physical channel to HS-SCCH, be referred to as the HS-SCCH subclass; In carrying out data transmission procedure; MAC-hs entity among the network side Node B is the concrete HS-PDSCH physical channel on the one or more carrier waves in one or more carrier waves of the above-mentioned distribution of user terminal selecting; To each carrier wave of choosing, many HS-SCCH and HS-SICH physical channel centering are selected relevant distribution control information and the receiving feedback information of HS-PDSCH physical channel on a pair of carrying and this carrier wave from distributing to this carrier wave is associated.
About the TD-SCDMA system resource allocation two kinds of methods are being arranged in the 3GPP agreement at present, a kind of is that RNC static allocation resource is arranged, and a kind of is that Node B dynamic assignment single carrier HSDPA service resources is arranged; And in above-mentioned multi-carrier HSDPA scheme, Node B also need be each HSDPA user terminal original allocation carrier resource, and the present invention will provide a kind of network side, comprises RNC and Node B, the method for original allocation HSDPA carrier resource.
Summary of the invention
Technical problem to be solved by this invention is, a kind of method for multi carrier wave high-speed downlink grouping access distributing radio resource is provided, and making the base station can be that each UE distributes HSDPA carrier resource rightly.
To achieve these goals, the invention provides a kind of method, be used for having multi-carrier resource and used the TD-SCDMA system that high speed downlink packet inserts, comprising for multi carrier wave high-speed downlink grouping access distributing radio resource:
Step 1, RNC sends to Node B with the QoS information relevant with the business that user terminal is asked;
Step 2, Node B is this request original allocation HSDPA carrier resource according to the load condition of the HSDPA channel on said QoS information and all carrier waves, and allocation result is sent to RNC.
Said step 1 can be passed through: the request process that RNC utilizes the Radio Link of Iub interface in Node B initiation NBAP agreement to set up in process, synchronised radio link reconfigure set-up procedure or the asynchronous wireless links reconfiguration course is realized.
Said step 1 also comprises: RNC receives the message relevant with said business from core net node and obtains said QoS information.
In the said step 1, obtain said QoS information in RAB ASSIGNMENT REQUEST message, RELOCATION REQUEST message or the RAB MODIFY REQUEST message of RNC from Iu interface RANAP.
Said core net node comprises MSC, SGSN.
Said QoS information comprises: maximum bit rate and assurance bit rate.
Said step 1 also comprises: RNC is with said maximum bit rate and guarantee that bit rate is processed into comprehensive parameters and redispatches to Node B.
Said step 1 also comprises: user's one-time request is a plurality of when professional, with the maximum bit rate of a plurality of business with guarantee the direct addition of bit rate, with addition with send to Node B.
Step for this request original allocation HSDPA carrier resource in the said step 2 also comprises: one or more meets the HSDPA carrier wave of these QoS information requirements for this request original allocation, and is each allocation of carriers a pair of or many HS-SCCH and HS-SICH physical channels to being associated with carrier wave.
Described RNC handles said maximum bit rate: λ * maximum bit rate+(1-λ) * assurance bit rate, and wherein λ is a weighted factor, span is: 0≤λ≤1.
Among the present invention, the QoS information that RNC will be relevant with the business of being asked sends to Node B, is used as the important evidence of Node B when carrying out HSDPA carrier resource original allocation, thereby has optimized the carrier resource original allocation of Node B.
Description of drawings
Fig. 1 is UMTS system network architecture sketch map;
Fig. 2 is the flow chart of the wireless resource allocation methods of a kind of multi carrier wave high-speed downlink packet access technique of the present invention.
Embodiment
Describe characteristic of the present invention in detail below in conjunction with embodiment and accompanying drawing.
In the multi-carrier HSDPA technology; For with existing 3GPP standard in TD-SCDMA single carrier HSDPA technical compatibility; Each also can only be used for distributing the HS-PDSCH physical channel resources on the carrier wave, i.e. a time slot and a code channel to HS-SCCH and HS-SICH physical channel.Therefore, under the multicarrier environment, need at first be the traffic assignments carrier resource of being asked also.So when user terminal is initiated service request; The multi-carrier HSDPA technology is being configured channel and is dividing timing; Need carry out in two steps: the first step, HSDPA resource original allocation is the carrier resource of user terminal original allocation HS-PDSCH physical channel; HS-SCCH that is associated with the carrier wave of HS-PDSCH physical channel and HS-SICH physical channel are to resource, and the DPCH resource of following; Second step: the HSDPA resource dynamic is distributed, and promptly through HS-SCCH and HS-SICH physical channel, Real-time and Dynamic on the carrier wave of original allocation is distributed HS-PDSCH time slot and code channel resource.
With compare about the distribution method of TD-SCDMA system resource in the present 3GPP agreement; Node B was carrying out for two steps during the first step in the collocation methods; Hope to obtain professional relevant information, (existing distribution method does not need service related information) is more reasonably to distribute the HSDPA carrier resource for each user terminal.
The method of the network side original allocation HSDPA carrier resource in the multi-carrier HSDPA technology of a kind of TD-SCDMA system that involved in the present invention is; Promptly be primarily aimed at the part of the above-mentioned first step, make Node B distribute the HSDPA carrier resource for each user terminal rightly.
Be illustrated in figure 1 as UMTS system network architecture sketch map.The 3G system is by CN (core net), and RAN (wireless access network) and user terminal three parts are formed.Wherein, core net CN is connected with the RNC (radio network controller) of wireless access network through the Iu interface, and RNC is connected with Node B through Iub interface again.Dispose one or more carrier wave between user terminal and the Node B, each carrier wave disposes one or many high speed descending sharing channel HS-PDSCH and one or many corresponding high-speed shared control channel HS-SCCHs, high-speed shared information channel HS-SICH.
The method of original allocation HSDPA carrier resource of the present invention is consulted the flow chart of Fig. 2, comprises the steps:
Certain user terminal is initiated certain professional request, and RNC receives this request and is responsible for this request and distributes the HSDPA resource.At this moment; The necessary information of setting up call path (repeating no more) that has existed in QoS (quality of service) information and the prior art that RNC will be relevant with the business that this user terminal is initiated at this; Send to Node B (step 201), request Node B distributes the related resource of HSDPA for this user terminal.
Wherein, This can be accomplished in several ways to the process that Node B sends QoS information, and for example: RNC reshuffles the request process in (Asynchronised Radio LinkReconfigurat ion) process through Iub interface to Radio Link foundation (Radio Link Setup) process, synchronised radio link reconfigure preparation (Synchronised Radio Link ReconfigurationPreparation) process or asynchronous wireless links that Node B initiates in the NBAP agreement.
In addition, about the source of this QoS information, RNC can be from its core net node that receives, and obtains this QoS information in the relevant message of the business of initiating with this user terminal that comprises that MSC (mobile switching centre) or SGSN (Serving GPRS Support Node) send.These comprise RAB ASSIGNMENT REQUEST in the Iu interface RANAP, RELOCATIONREQUEST, RAB MODIFY REQUEST message with the relevant message of business that this user terminal is initiated.
Wherein, QoS information comprises a lot of aspects, but mainly comprise relevant with the original carrier resource allocation: maximum bit rate (Maximum bit rate) and assurance bit rate (Guaranteed bit rate).Therefore, after RNC receives QoS information can with maximum bit rate that should business with guarantee that bit rate information sends to Node B.Certainly, RNC also can carry out integrated treatment to these two parameters, as becoming a comprehensive parameters according to following formula manipulation, and then sends to Node B.
λ * Maximum bit rate+ (1-λ) * Guaranteed bit rate, wherein λ is a weighted factor, span is: 0≤λ≤1.
At RNC in the HSDPA resource allocation request message that Node B initiates; If comprise a plurality of business; RNC need carry out integrated treatment with the qos parameter of a plurality of business; As with the maximum bit rate of a plurality of business with guarantee the direct addition of bit rate, then with the addition gained with send to Node B.
Node B is after the HSDPA resource allocation request message that receives the RNC transmission; The load condition of the HSDPA channel on all carrier waves that will be monitored with reference to this qos parameter information and with reference to Node B; One or more meets the HSDPA carrier wave of these QoS information requirements for this request original allocation; Wherein each carrier wave all has a high speed descending sharing channel HS-PDSCH; And a pair of or many HS-SCCH and HS-SICH physical channel are associated with carrier wave to resource for each allocation of carriers, and other HSDPA resource of being correlated with, Node B sends to RNC (step 202) with this HSDPA resource allocation result subsequently.The original allocation of this HSDPA carrier resource finishes.
With 128k PS territory business is example.Confirm as terminal distribution 128k PS territory when professional when terminal and network negotiate, core net is initiated RAB (RAB) to RNC and is set up request, and Maximumbit rate that wherein should business is 128k, and Guaranteed bit rate is 0.RNC confirms as this traffic assignments HSDPA resource, in Radio Link foundation/reallocation message, initiates the HSDPA resource allocation request to Node B, and comprising this QoS of survice information: Maximum bit rate is 128k, and Guaranteed bit rate is 0.Node B confirms as this business according to QoS information and on carrier wave 2 and carrier wave 3, distributes 2 carrier frequency resources (having disposed the HSDPA resource on 3 carrier waves of system in 3 carrier cells), is that two carrier resources distribute 2 couples of HS-SCCH and HS-SICH physical channel to resource respectively on carrier wave 2 simultaneously.
The advantage that the present invention had is that the QoS information that RNC will be relevant with the business of being asked sends to Node B, is used as the important evidence of Node B when carrying out HSDPA carrier resource original allocation, thereby has optimized the carrier resource original allocation of Node B.
Above-mentioned each embodiment is only in order to explain characteristics of the present invention; Make those of ordinary skill in the art can understand content of the present invention and enforcement according to this; Be not to be used to limit scope of the present invention; The equivalent modifications of dying all not departing from the scope of the present invention and accomplishing still is included in claims of the following stated.
Claims (9)
1. the method for multi carrier wave high-speed downlink grouping access distributing radio resource is used for having multi-carrier resource and has used the TD-SCDMA system that high speed downlink packet inserts, and it is characterized in that, comprising:
Step 1, RNC sends to Node B with the QoS information relevant with the business that user terminal is asked;
Step 2; Node B is according to the load condition of the HSDPA channel on said QoS information and all carrier waves; One or more meets the HSDPA carrier wave of these QoS information requirements the traffic assignments of asking for user terminal; Wherein each carrier wave all has a high speed descending sharing channel HS-PDSCH, and a pair of or many HS-SCCH and HS-SICH physical channel are associated with carrier wave to resource for each allocation of carriers, and allocation result is sent to RNC.
2. the method for claim 1 is characterized in that, step 1 can be passed through:
The request process that RNC utilizes the Radio Link of Iub interface in Node B initiation NBAP agreement to set up in process, synchronised radio link reconfigure set-up procedure or the asynchronous wireless links reconfiguration course is realized.
3. the method for claim 1 is characterized in that, step 1 also comprises: RNC receives the message relevant with said business from core net node and obtains said QoS information.
4. method as claimed in claim 3; It is characterized in that; In the step 1, obtain said QoS information in RAB ASSIGNMENT REQUEST message, RELOCATION REQUEST message or the RAB MODIFY REQUEST message of RNC from the RANAP that the Iu interface receives.
5. method as claimed in claim 3 is characterized in that this core net node comprises MSC, SGSN.
6. like claim 1 or 3 described methods, it is characterized in that said QoS information comprises: maximum bit rate and assurance bit rate.
7. method as claimed in claim 6 is characterized in that step 1 also comprises: RNC is with said maximum bit rate and guarantee that bit rate is processed into comprehensive parameters and redispatches to Node B.
8. method as claimed in claim 6 is characterized in that step 1 also comprises: user's one-time request is a plurality of when professional, with the maximum bit rate of a plurality of business with guarantee the direct addition of bit rate, with addition with send to Node B.
9. method as claimed in claim 7 is characterized in that, RNC handles said maximum bit rate and with the rule that guarantees bit rate is: λ * maximum bit rate+(1-λ) * assurance bit rate, and wherein λ is a weighted factor, span is: 0≤λ≤1.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100893401A CN101094166B (en) | 2006-06-21 | 2006-06-21 | Method for distributing wireless resource for multi-carrier high-speed downlink packet access |
| EP06817835.9A EP1953971A4 (en) | 2005-11-16 | 2006-11-16 | A channel for multicarrier high speed downlink packet access and a method for allocating the carrier resource |
| PCT/CN2006/003089 WO2007056953A1 (en) | 2005-11-16 | 2006-11-16 | A channel for multicarrier high speed downlink packet access and a method for allocating the carrier resource |
| KR1020087014033A KR20080078659A (en) | 2005-11-16 | 2006-11-16 | Channel and Carrier Resource Allocation Method Used for Multi-carrier High Speed Downlink Packet Access |
| US12/093,993 US8385217B2 (en) | 2005-11-16 | 2006-11-16 | Method for configuring channel and carrier resources for multi-carrier high speed downlink packet access |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100893401A CN101094166B (en) | 2006-06-21 | 2006-06-21 | Method for distributing wireless resource for multi-carrier high-speed downlink packet access |
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| CN101094166A CN101094166A (en) | 2007-12-26 |
| CN101094166B true CN101094166B (en) | 2012-05-16 |
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| CN101547481B (en) * | 2008-03-24 | 2012-12-19 | 中兴通讯股份有限公司 | Resource transmission method and wireless network subsystem |
| CN101656988B (en) * | 2008-08-19 | 2011-11-16 | 中国移动通信集团上海有限公司 | Method, device and system for managing service quality |
| CN101742658B (en) * | 2008-11-13 | 2013-08-21 | 中兴通讯股份有限公司 | Method for allocating resource of enhanced district forward access channel in multi-carrier system |
| CN101583193B (en) * | 2009-06-24 | 2012-03-21 | 中国科学院计算技术研究所 | Distribution method for wireless resource ascended by base station terminal in LTE system and device |
| CN102264144A (en) * | 2010-05-28 | 2011-11-30 | 大唐移动通信设备有限公司 | Resource scheduling method, apparatus thereof, and system thereof |
| WO2012171178A1 (en) * | 2011-06-14 | 2012-12-20 | 华为技术有限公司 | Method, device and system for qos guarantee |
| US9578647B2 (en) * | 2013-08-29 | 2017-02-21 | Telefonaktiebolaget Lm Ericsson (Publ) | 3GPP bearer-based QoS model support on WiFi |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395386A (en) * | 2001-06-29 | 2003-02-05 | 三星电子株式会社 | Method for transmitting high speed down link group insersion business information |
| CN1462124A (en) * | 2002-05-11 | 2003-12-17 | 三星电子株式会社 | Method for determining high-speed physical down share channel power offset and its signalling method |
| EP1549098A2 (en) * | 2003-12-22 | 2005-06-29 | Alcatel | Effective dynamic management scheme of hs-dsch channel codes |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395386A (en) * | 2001-06-29 | 2003-02-05 | 三星电子株式会社 | Method for transmitting high speed down link group insersion business information |
| CN1462124A (en) * | 2002-05-11 | 2003-12-17 | 三星电子株式会社 | Method for determining high-speed physical down share channel power offset and its signalling method |
| EP1549098A2 (en) * | 2003-12-22 | 2005-06-29 | Alcatel | Effective dynamic management scheme of hs-dsch channel codes |
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