CN2741281Y - Node B for supplying resource managing data of high-speed up-chain circuit bag data service - Google Patents

Abstract

The utility model provides a node B device for the high-speed shared service structure. The node B device provides a plurality of information settings, responding to a group of basic enquiries which is required from a sort of data service. The potential measurement which is done by a lot of nodes B is used for starting up the appropriate resource management.

Description

The Node B of resource management data is provided for the high-speed down link packet data services

Technical field

The utility model relates to the RRM in a kind of wireless communication system.The utility model is particularly related to the data necessary communication that is used for resource management in high speed down link group insersion business.

Background technology

In the third generation cellular system that uses TDD and FDD, nearly all resource all is to be distributed and control the Radio Resource of this controller Control Node B by control radio network controller (C-RNC).For dedicated channel (DCH), C-RNC distributes the resource of fixed qty from resource pool (resource pool), and to specify it be DCH service.Speech business is exactly an example of DCH business.For the data type business, C-RNC energy allocation of downlink shared channel (DSCH), data service, for example page download, file transfer protocol (FTP) (Ftp) business or Email etc. are exactly a kind of example of DSCH business.In time, a plurality of users share this channel and timing of channels arrangement, for example, carry out the user who obtains access channel in C-RNC.

These resources are managed by C-RNC, C-RNC can determine how many resource allocations of a honeycomb to give the DCH business, what are assigned to the DSCH business with, because a moment, every kind of resource only can provide one type service (DCH or DSCH), yet in the time of needs, these resources can be between two resource pools moving back and forth.

A kind of extra complexity has appearred in the DSCH resource allocation in C-RNC, because it is a shared resource of handling the multiple business of variable data rate.The maximum resource amount of all user's requests can often surpass the stock number of distributing to this type service in the resource pool.This is possible, because statistical ground, not all user need send with the highest permission speed simultaneously.Therefore, need be used effectively with definite not only Radio Resource, and not have the excessive excessive user of being supplied to, because arbitrary situation all will cause the deterioration of QoS of customer (QoS) with regard to available resources monitor data service-user.

C-RNC must respond the inquiry of following routine, has the optimum message that high-speed downlink packet inserts (HSDPA) business operation with generation.Is first inquiry that to each user, how the QoS request is implemented? especially, need determine whether that all operating parameters all are arranged on optimum level to be used for shared and dedicated service.Be second inquiry how whole resources are utilized by two types of business (special use and shared service)? that best resource is divided between the special use of given every kind of current use/demand of business and shared service?

Is how many overall system performances another inquiry to increase a certain QoS requesting users to a honeycomb will expend? for shared service, the service rate of user's actual needs is often along with the time changes, therefore distribute to user's the common excessive supply of resource, this obviously is a problem.

In most of business, C-RNC can easily respond these inquiries.For a specific user who uses dedicated service, C-RNC distributes the resource of a fixed qty, and the stock number of using owing to the past user along with the time is a quite stable.For a variable data rate user who uses shared service, C-RNC has enough information to know how resource is used between all users.

Yet high-speed downlink packet inserts (HSDPA) business and has used a kind of new channel; A kind of high-speed downlink shared channel (HS-DSCH) provides the higher data transfer rate that is used for data service than DSCH.The HS-DSCH business is based on the Node B of the transmission of dynamically adapting more, the user who has data to transmit with better services.Therefore no longer arranging data maybe should the actual resource of using of transmission a particular moment transmission for C-RNC, C-RNC distributes one to give Node B for the resource in determined number power and the data resource pond basically, based on the current wireless condition, Node B dynamic dispatching user data.

This structural change aspect data service functional in C-RNC does not consequently stay some and has been used for other professional essential informations.Therefore, for example: how (1) QoS has fulfiled; (2) all utilizations of resource; (3) system increases a user's influence, and before these inquiries proposed, inquiry can not be responded fully.

The utility model content

The structure meaning of high speed shared service is that Node B has multiple information setting, three kinds (3) that this information response inquires substantially are provided with, should basic inquiry be the inquiry that data service need respond, the utility model provides a kind of Node B of the HSDPA of having ability, and this Node B has a dispatching device that the information that makes an effective Resources allocation of explorer is provided.

Description of drawings

Consider that from accompanying drawing the utility model will be understood easily, wherein identical parts are with identical number mark, and wherein:

Fig. 1 and 2 shows the chart of a radio network controller (RNC) that is connected with a Node B, and wherein Fig. 1 lacks a high-speed downlink shared channel (HS-DSCH), and Fig. 2 has a HS-DSCH channel.

Fig. 3 shows a RNC who is connected with a Node B, and this Node B has a HS-DSCH channel, and imbody principle of the present utility model.

Embodiment

High speed downlink packet access inserts (HSDPA) and is provided, with by a high-speed downlink shared channel (HS-DSCH), improves performance, reduces the round trip delay and increases peak-data rates.In addition, three (3) basic fundamentals of the quick self-adapted instantaneous radio condition of close coupling and dependence transmission parameter comprise:

(a) rapid link adaptive technique is used in response to for example improvement in the modulation that declines of peak value decline and inclination angle of channel condition;

(b) the automatic repetitive requests of rapid mixing (ARQ) technology was used for before any trial of carrying out decoded information, asked the re-transmission of obliterated data entity fast and integration software information (soft information) from original transmitted and arbitrary subsequently re-transmission; With

(c) user shares the fast dispatch of HS-DSCH, and by multi-user diversity, HS-DSCH can utilize favourable radio condition to send signal to the user.

HSDPA has utilized the quick self-adapted with match channels condition and function of parameter transmission, for example fast transmission link self adaptation and fast dispatch, the technology that HSDPA uses is applied to the place near air interface, just in Node B, cause the partial function of before having carried out to transfer to Node B at radio network controller (RNC), formed a new Node B entity, MAC-HSDPA.This specific character (feature) of expanding node B provides a kind of reliable channel of height of supporting High Data Rate by this way.

Fig. 1-3 shows a kind of typical realization and multiple message flow, and these message flows are essential to suitable RRM (RRM) function.Fig. 1 shows the chart of the relevant technologies before HSDPA occurs.Fig. 2 shows the chart that improves the relevant technologies that combines with HSDPA.Fig. 3 shows the chart of the calibration function that has used the utility model principle.

Fig. 1 shows a RNC12 and Node B 14 and some Premium Features and message transmission, and these suitable functions to the professional RRM distribution of (RT) and non real-time (NRT) in real time are essential.Function and message transmission in an intranodal (RNC or Node B) definition depend primarily on realization.At an intranodal, mark function can be carried out by independent processor, or can be in a combined task of carrying out a more than function tasks, and carries out other functions that these function tasks also can be carried out and the utility model is irrelevant.Be a standard I ub interface 16 between RNC12 and Node B 14, in proper standard, formally defined the message transmission like this.

Functional block 1 (F1) is RT and NRT explorer 18.This function executing traffic balance function, (RT) and non real-time (NRT) function are in real time given in the distributed resources pond, add and carry out the call Admission Control function, this permission controlled function determines under the given present load situation, and this unit can hold the user of a new particular type, data transfer rate and QoS characteristic.

Functional block 2 (F2) is a Real-Time Scheduling device 20.Real-Time Scheduling device 20 is responsible for Resources allocation and is given active user, as the voice user.Under the situation of given type of service, distribute normally static disposable distribution.

Functional block 3 (F3) is non-Real-Time Scheduling device 22.Non real-time dispatching device 20 is responsible for each data burst Resources allocation of non real-time user.Under the situation of given type of service, distribute relative frequently, and much call out and take place for typical non real-time.

Functional block 4 (F4) is a physical layer device 24.Physical layer device 24 is carried out all physics air interface functions, correctly to send user data by air interface.The resource that is used for each transmission is distributed by real-time or non real-time dispatching device.

Use the information apparatus of some type, F1 communicates by letter to other functional blocks of F3 with F1 to each of F3 functional block.These devices can formally define by standard (for example checking the information apparatus of Iub interface one by one), or can inner define, thus and implementation detail (implementation specific).In fact, in the realization of a single task role that use to carry out a more than function, communication is unessential.Yet it should be noted that this realization only relates to needs the logical message transmitted between each function.Even should be noted that as what describe in the accompanying drawing and realize that with software mode these functional blocks will have other message setting fully, these are provided with and need exchange with other functions, and other functions comprise the function beyond the utility model scope.

It is one group of message of using that message is provided with 1 (M1) 18a, and RT and NRT explorer can be current resource pool of RT call distribution like this, and Real-Time Scheduling device (F2) just has its information that needs like this.

It is one group of message of using that message is provided with 2 (M2) 20a, and RT and NRT explorer can be known the current RT user's of giving distribution condition like this, and given RT distributes under the normally static situation, unless traffic congestion exists, message is unessential.

It is one group of message of using that message is provided with 3 (M3) 18b, and RT and NRT explorer 18 can distribute a current resource pool for all NRT configurations like this, and non real-time scheduling non real-time dispatching device (F3) just has the information that needs like this, like this could Resources allocation.

It is one group of message of using that message is provided with 4 (M4) 22a, and RT and NRT explorer 18 are known the current NRT user's of giving distribution condition (for example distribute and measure or the result) like this.Because the burst service resource is periodically distributed, this feedback is important, and RT and NRT explorer 18 can alleviate any because the obstruction of interim (or even greater than interim) that undue reservation causes like this.

It is one group of message that message is provided with 5 (M5) 20b, and this message tells layer one (physical layer device) relevant resource allocation conditions of giving a user RT business.

It is one group of message that message is provided with 6 (M6) 22b, and this message tells layer one (physical layer device) relevant resource allocation conditions of giving a user NRT business.

In Fig. 2, it should be noted that it is inner that M1-M4 message is provided with relative RNC, because RT and NRT explorer and RT and NRT dispatching device are positioned at RNC inside.M5 is set message and M6 sends as part of standards Iub message.

The chart of Fig. 2 shows the additional HS-DSCH channel of handling the NRT business.Attention is for new HS-DSCH, and non real-time dispatching device 26 has been moved to Node B and present message is provided with 3 (18a) by the transmission of standard I ub interface, and notices that message is provided with 4 and has been removed.RT and NRT explorer allow its balance between RT and NRT business without any the feedback from the non real-time dispatching device in other words, or provide incoming call to allow controlled function, comprise the NRT business.

The chart of Fig. 3 shows in conjunction with HS-DSCH of the present utility model.By the new information M4 of standard I ub interface definition, 26a ' will consider to obtain feedback by RT and NRT explorer, so that suitable traffic balance and call Admission Control to be provided.Will be in a kind of similar mode of measuring in other physical layers of Node B, the definition new information is provided with M4, and this is a prior art.According to prior art, CRNC can dispatch report and the expection of passing by in time on average to realize its needs.As noted above, the example of the basic inquiry that data service need respond, is an example how service quality (QoS) realizes? Node B knows that being successfully received its how many times up to data attempts sending data in this respect, and the time in office, all know the actual speed rate data that are transmitted.This is a different value, compare with the actual transmission of user data, because a transmission of repeatedly having been return is at every turn all with the busy channel capacity, data are sent out, even the user has sent data only once, and the QoS that determines the user be done how the time, this only calculates once.Yet the utility model provides solicited message.

In addition, need know other things, for example power ratios of other professional uses of providing of the gross power used of high-speed data service and honeycomb, when comparing the power of learning distribution with the quantity of processed data and how effectively to be used, which is an additive factor.The current potential (potential) that has a lot of other Node B to carry out is measured, and this potential measurement is useful when definite high-speed data service quality.An example is exactly when data are received by correct or mistake, receives the reliability that the user sends to determining of Node B or negative response.

Other inquiries that this categorical data can be replied are:

Is (a) all how resource used by two types of business?

Be (b) between the special use of the current use/needs of given every kind of business and data service, optimum division? the Node B of handling this inquiry is known and how is effectively sent user data.For example, a Node B of more multiple biography is arranged, can not handle the user data of as much with other Node B than another Node B.

(c) increase a specific QoS requesting users to honeycomb and expend how many overall system performances? the Node B that responds this inquiry can be estimated available resources based on the aggregate resource utilization, and these resources are available to the new user of a given response of inquiring above.

Therefore, because it is essential information to carrying out these functions that Node B has all, and supposition is for special-purpose and all data services, all C-RNC resource allocations are moved on to Node B, carry out this structural change and be under the invalid situation, these parameters of the essential report of Node B are given C-RNC, to allow C-RNC these information and other information that are used on DCH and the DSCH resource are combined, this is very useful, makes the optimal resource allocation decision to allow it.Current potential (potential) information list wishes to be sent to C-RNC from Node B, measurement is used for honeycomb or the priority by the user on the whole at it: the success of the every unit of measurement time data quantity transmitted, for example size of the number of data block or actual transmissions data.Comprise equally in the tabulation kind: the number that success is transmitted; The number that first success is transmitted; The number that second success is transmitted; The number that the 3rd success is transmitted; The not successful number that transmits; First number of being abandoned and transmitting; Second number of being abandoned and transmitting; The 3rd number of being abandoned and transmitting; The number of total failure; The use of every kind of modulation scheme; Compare the execution of case of soft handover with regular situation; ACK/NACK quality of reception error; Use with the power that is used for the HSDPA transmission.

Though described the utility model in detail, the utility model is not limited to the there, and the utility model spirit and scope of not leaving claims definition can carry out various changes, and this is to understand easily.

Claims (8)

1. a Node B is used to provide solicited message to guarantee the suitable resource management of wireless network, it is characterized in that this Node B comprises:

A device that is used to non real-time (NRT) resource to provide physical channel to distribute to physical layer device, this physical layer device receive a resource allocation for NRT user responds; With

One is used for guaranteeing to provide the device of current allocation report for each NRT user under the situation of suitable resource allocation.

2. Node B according to claim 1 is characterized in that also comprising:

A physical channel request unit that is provided for the NRT resource receives the physical layer device of resource allocation for a response, and this resource allocation is used for RT user.

3. Node B according to claim 1 is characterized in that being used to provide the device of report, also provides time per unit successfully to be transferred to the data volume of described RNC.

4. Node B according to claim 1 is characterized in that being used to provide the device of report, and one of many data blocks of expression and the actual data that are transmitted the size of data also are provided.

5. Node B according to claim 1 is characterized in that being used to provide the device of report, and the quantity of first transmission of success also is provided.

6. Node B according to claim 1 is characterized in that being used to provide the device of report, and second transmission of success also is provided.

7. Node B according to claim 1 is characterized in that being used to provide the device of report, and the quantity of the 3rd transmission of success also is provided.

8. Node B according to claim 1 is characterized in that being used to provide the device of report, also provides following one or more:

The not successful quantity of transmitting;

The quantity of abandoned first transmission;

The quantity of abandoned second transmission;

The quantity of abandoned the 3rd transmission;

The quantity of overall failure;

The use of each modulation scheme;

Performance with respect to the case of soft handover of normal condition;

The quantity of answering/no answering quality of reception error; And

The power that is used for the HSDPA transmission uses.

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