Embodiment
By the analysis of background technology as can be known, owing to only support a UE who transmits the carrier wave of high speed business data, in the sub-district that can support a plurality of work carrier waves that can be used for the high speed business transfer of data, when carrying out HSUPA business or the operation of other high-speed data service, UE can only be assigned to a work carrier wave and associated control channel thereof, and because adjustment UE carrier wave and relevant configuration need layer three signaling just can finish, therefore limited the quick switching of UE on a plurality of carrier waves, reduce the switch speed of UE work carrier wave, thereby reduced the data transmission efficiency of high-speed data service.At the problems referred to above, the embodiment of the invention proposes: at least two work carrier waves that transmit high-speed datas selecting user's support for this UE, and according to radio signal quality, the Load distribution of work carrier wave and/or the information such as annoyance level that are subjected to, by Node B in the work carrier wave of above-mentioned selection, directly control UE switch operating carrier transmission high-speed data, make UE not need just can realize the adjustment of work carrier wave by layer three signaling, accelerate regulating the speed of UE work carrier wave, improved data transmission efficiency.
Be explained in detail to the realization principle of technical solution of the present invention, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
Design philosophy of the present invention is: network side is selected the work carrier wave that is used for high speed data transfer of at least two user terminal supports; The work carrier information that network side will be selected, and corresponding with the work carrier wave of each selection respectively control channel information be notified to described user terminal; And in the high speed data transfer process, the network controls user terminal uses relevant work carrier wave and the corresponding control channel thereof in the work carrier wave of described selection, finishes the transmission of high-speed data.
Wherein above-mentioned when selecting at least two work carrier waves for UE, for UE has distributed and the corresponding control channel of each work carrier wave simultaneously, be used to make UE to pass through monitoring control channel, can know scheduling authorization information.
Fig. 1 carries out the flow chart of high speed data transfer for the embodiment of the invention, and as known in the figure, in the embodiment of the invention, the high speed data transfer process comprises the steps:
Step 10 is according to factors such as the quality of service feature parameter, UE ability and the current area wireless carrier of UE business, Load distribution, at least two work carrier waves that are used for transmitting high speed data selecting UE to support;
Wherein, the factor of enumerating in this step only is typical factor, when practical application this programme shares out the work carrier wave, can select for example also to consider the factors such as interference between the different carrier in requisition for the factor of considering according to actual conditions.
In addition, these work carrier waves of selecting for UE only are to say that UE can use these carrier waves to transmit high-speed data herein, are not that UE must use each work carrier wave of selection to transmit high-speed data.
Step 20, with the work carrier wave selected, and corresponding with the work carrier wave of each selection respectively control channel be notified to RNC, be notified to described UE by RNC again;
In the HSUPA business, described work carrier wave is the carrier wave at E-DCH place, and control channel is E-AGCH and E-HICH, and above-mentioned notification procedure can be:
At first the configuration information of frequency, E-AGCH and the E-HICH of E-DCH is contained in Radio Link and sets up response message (RL Setup Response by Node B, Radio Link Setup Response) in the E-DCH TDD Information Response information element, sends to RNC;
Table 1 is the part definition list of the E-DCH TDD Information Response information element of embodiment of the invention proposition, the definition of information element is based on the standard definition of 3GPP standard TS25.433 in this table, increased the frequency (UARFCN of assignment carrier wave newly, UTRA absolute radio frequencychannel number) and the configuration of the corresponding control channel of each carrier wave, be the configuration (E-AGCH/E-HICH Specific Information ResponseLCR per UARFCN) of E-AGCH and E-HICH in the HUSPA business, above-mentioned newly-increased part shows with black matrix in table 1.
IE/Group?Name |
Presence |
Range |
IET?ype?and Reference |
Semantics?Description |
|
|
|
|
|
E-RNTI |
M |
|
9.2.1.75 |
|
E-AGCH /E-HICHSpecific Information?Response LCR?per?UARFCN |
|
0..<maxH SUPAFreq uency> |
|
|
>E-AGCH?Specific Information?Response TDD |
|
0..<maxN oOfEAGC Hcodes> |
|
|
|
|
|
|
|
>>E-HICHIDTDD |
M |
|
9.2.3.51a |
|
>UARFCN |
O |
|
9.2.1.65 |
Corresponds?to?Nt(3GPP?TS 25.105) Applicable?for?1.28Mcps?TDD when?using?multiple frequencies. |
Table 1
Wherein, Presence represents on the hurdle that this is an option, and Type and Reference hurdle is illustrated in the position of explaining this in the 3GPP standard in detail, and the Range hurdle has provided the frequency range of the carrier wave that distributes.In specific implementation process, Node B can send to RNC with the frequency of above-mentioned assignment carrier wave and the configuration information of corresponding control channel according to the definition of above-mentioned E-DCH TDD Information Response information element.
Information Element/Group?name |
Need |
Multi |
Type and reference |
Semantics description |
Ver sion |
|
|
|
|
|
|
>>>>TPC?step?size |
MP |
|
Integer(1,2, 3) |
dB. |
REL-7 |
>>>>E-AGCH?Specific Information?Response?LCR per?UARFCN |
|
0..<maxHS UPAFrequ ency> |
|
|
|
>>>>>E-AGCH?set configuration |
MP |
<1to maxNumE -AGCH> |
|
|
REL-7 |
|
|
|
|
|
|
>>>>>>Midamble?Shift |
CV-UE specific |
|
Integer (0..15) |
|
REL-7 |
>>>>>UsedF?requency |
O |
|
UARFCN 9.2.1.65 |
Applicable?for 1.28Mcps?TDD when?using multiple frequencies.this IE?indicates?the frequency?of carrier?which?is actually?used?by the?E-AGCH. |
|
>>>>>UARFCN |
O |
|
9.2.1.65 |
Corresponds?to?Nt (3GPPTS 25.105) Applicable?for 1.28Mcps?TDD when?using multiple frequencies. |
|
>>>>>E-AGCH?BLER?target |
MP |
|
Real(-3.15to 0step0.05) |
|
REL-7 |
Table 2
Then, RNC is at Radio Resource control radio bearer foundation/replacement (RRC RBS/RBR, in the E-AGCH Info/E-HICH Info information element of RadioResource Control Radio Bearer Setup/Reconfiguration message, add configuration information and the E-AGCH that obtains according to this configuration information and the frequency (with reference to table 2 and table 3) of E-HICH place carrier wave of frequency, E-AGCH and the E-HICH of the E-DCH receive, and be notified to UE.Wherein this frequency can be identical with the frequency of E-DCH channel place carrier wave, also can be inequality.
Table 2 is the part definition list of the E-AGCH Information information element of embodiment of the invention proposition, definition shown in this table is based on the standard definition of 3GPP standard T25.331, increased the configuration information (E-AGCH Specific Information Response LCR perUARFCN) of every carrier wave E-AGCH, the frequency (Used Frequency) of E-AGCH channel place carrier wave and the frequency (UARFCN) of E-DCH channel place carrier wave newly, newly-increased content shows with runic in table 2.
Information?Element/Group name |
Need |
Multi |
Type and reference |
Semantics description |
Ver sion |
|
|
|
|
|
|
>>>NE-HIcH |
MP |
|
Integer (4..15) |
Minimum?number of?slots?between start?last?active slot?of?E-DCH?TTI and?start?of ACK/NACK?on E-HICH |
REL-7 |
>>>>E-HICH?Specific Information?Response?LCR per?UARFCN |
|
0..<maxHS UPAFrequ ency> |
|
|
|
>>>>>E-HICH?set?configuration |
|
<1to maxNumE- HICH> |
|
|
REL-7 |
|
|
|
|
|
|
>>>>>>Midamble?Shift |
CV-UE specific |
|
I?nteger (0..15) |
|
REL-7 |
>>>>>UsedFrequency |
O |
|
UARFCN 9.2.1.65 |
Applicable?for 1.28Mcps?TDD when?using multiple frequencies.this IE?indicates?the frequency?of carrier?which?is actually?used?by the?E-HICH. |
|
>>>>>UARFCN |
O |
|
9.2.1.65 |
Corresponds?to?Nt (3GPP?TS 25.105) Applicable?for 1.28Mcps?TDD when?using multiple frequencies. |
|
Table 3
Table 3 is the part definition list of the E-HICH Information information element of embodiment of the invention proposition, definition shown in this figure is the standard definition based on 3GPP standard T25.331 equally, increased the configuration information (E-HICH Specific Information Response LCR perUARFCN) of every carrier wave E-HICH, the frequency (Used Frequency) of E-HICH channel place carrier wave and the frequency (UARFCN) of E-DCH channel place carrier wave newly, newly-increased content shows with runic in table 3.
Wherein, the Need hurdle in table 2 and the table 3 represents that this is an essential option, and Multi represents on the hurdle that this can occur repeatedly, and Type and Reference hurdle is illustrated in the position of explaining this in the 3GPP standard in detail, and the Range hurdle has provided the frequency range of the carrier wave that distributes.
Certainly, above-mentioned only is that carrier frequency and the control channel that will select is notified to RNC, and a kind of preferable advice method when being notified to UE by RNC, as long as in fact can reach above-mentioned selection result is notified to RNC, and being notified to the purpose of UE by RNC, the implementation of this step can have multiple so.
Step 30, after receiving the dispatch request that UE sends, communication capacity information according to the carrier wave of selecting, in the work carrier wave of selecting, choose one or more work carrier wave and send the work carrier wave of high-speed data, and the control channel of scheduling authorization by this carrier wave correspondence is notified to UE as UE;
Wherein dispatch request comprises that request resource sends the solicited message of data and the report information of UE state, information such as data volume for example to be sent.
In addition, Node B can make UE be known as the frequency of its work carrier wave of choosing by dual mode:
A kind of mode is: owing to be that UE assignment carrier wave is corresponding with control channel, therefore, as long as it is the scheduling arrangement of sending from which control channel that UE monitors Node B, so according to the corresponding relation between work carrier wave and the control channel, which carrier wave of working what UE just can judge that Node B is that UE chooses is.For example in the HSUPA business, each E-DCH is respectively with how corresponding mutually to control channel (E-AGCH and E-HICH), when Node B utilizes E-AGCH to dispatch to arrange to be notified to UE, UE can just can be informed in transmitting high speed data on which E-DCH work carrier wave according to being the scheduling arrangement that receives from which E-AGCH.
Another mode is: increase information unit on AGCH, the frequency that is used for E-DCH work carrier wave that will choose sends UE to, so that UE transmits high-speed data on the work carrier wave of choosing, this moment, UE did not just need to judge which E-DCH work carrier wave of choosing according to E-AGCH.
What the information unit that wherein increases transmitted is the frequency of E-DCH work carrier wave, can certainly be other carrier information of E-DCH work carrier wave, for example carrier identification etc.
Step 40, when UE takies the work carrier transmission high-speed data of choosing, communication capacity information based on each work carrier wave of selecting for UE in the current area, in the scope of the work carrier wave of selecting for UE, control UE switch operating carrier wave and corresponding control channel are to finish the transmission of high-speed data.
Wherein communication capacity information is meant the factor that influences work carrier communication ability, includes but not limited to the signal quality of work carrier wave, the information such as annoyance level of loading and/or being subjected to.
When annoyance level that communication capacity information refers to signal quality, loads and/or is subjected to, a kind of mode of Node B switch operating carrier wave is: in the work carrier wave of described selection, when user terminal is compared with the work carrier wave that takies at current unappropriated work carrier wave, when the interference that signal quality better, load is lower and/or be subjected to was light, the control user terminal switched to the transmission of finishing high-speed data on the described unappropriated work carrier wave.
Step 30 and 40 frequencies of choosing with the switch operating carrier wave according to communication capacity information such as signal quality and/or Load distribution and/or annoyance levels only are a kind of typical embodiment, when implementing this programme, also can determine to choose and the switch operating carrier wave, for example the scheduling strategy of NodeB etc. according to concrete performance according to other factors.
Below by the detailed process of HSUPA transfer of data the specific implementation step of above-mentioned flow process being described, is example with packet switching (PS, Packet Switched) business.
Fig. 2 is the schematic diagram of the concrete transmission course of HSUPA business datum in the embodiment of the invention, and as known in the figure, the detailed process of HSUPA transfer of data is:
A1, in the RANAP of Iu interface, CN sends RAB request for allocation (RAB ASSIGNMENT REQUEST to RNC, Radio Access Bearer ASSIGNMENTREQUEST) message, this message comprises the relevant information of the traffic performance and the Iu interface of this PS territory business, and RNC is the radio bearer that UE sets up PS territory business with indication;
A2, in the NBAP of Iub interface agreement, RNC sends Radio Link to Node B and sets up request (RLSetup Request, Radio Link Setup Request) message, and this message comprises the relevant information of Iub interface and from the traffic performance in the PS territory that CN receives;
A3, Node B is according to the service feature parameter of the PS business that receives and the customizing messages of self grasping, for example mainly contain: the occupation condition of the radio signal quality situation of current area different carrier, the business of current area different carrier, current area are in information such as the disturbed condition of different carrier and UE abilities, be PS traffic assignments HSUPA resource, this resource is included as the configuration of a plurality of E-DCH work carrier waves that UE selects and corresponding with each E-DCH respectively E-AGCH/E-HICH;
Wherein each E-DCH is corresponding many respectively to control channel, and described many to the also only corresponding E-DCH of control channel, and each all comprises E-AGCH and E-HICH to control channel.The frequency of the carrier frequency at E-AGCH and E-HICH place and E-DCH work carrier wave both can be the same or different in addition.
A4, Node B sends RL Setup Response message to RNC, and selection result is notified to RNC; Comprise in the message: a plurality of E-PUCH carrier informations of selection, many frequencies, time slot and code channel assignment information E-AGCH/E-HICH, many map informations to E-AGCH/E-HICH and a plurality of E-PUCH carrier frequencies etc., wherein the frequency of E-PUCH carrier wave is the frequency of E-DCH work carrier wave.
A5, RNC sends RRC message to UE, and the parameter configuration of the professional HSUPA resource of PS is sent to UE; This parameter configuration comprises the configuration information of available E-PUCH work carrier wave (Usable E-PUCHcarriers), E-AGCH and E-HICH and the frequency information such as (mapping betweenE-HICH/E-AGCH and E-PUCH carriers) of place carrier wave.
A6, the UE side has upstream data to arrive;
A7, UE sends dispatch request (Scheduling Request/SchedulingInformation) to Node B, is used for request resource and reports its state;
A8, Node B receives after this scheduling request information, by Node B based on the Load distribution of each carrier wave in E-DCH channel quality, the sub-district and/or the information such as annoyance level that are subjected to, in the E-DCH work carrier wave of selecting, choose one or more E-DCH work carrier waves send high-speed data as UE work carrier wave;
A9, Node B sends to UE with the E-AGCH of scheduling authorization (Granted Resources) by this E-DCH correspondence;
A10, UE are after receiving scheduling authorization from this E-AGCH, and UE judges the E-DCH work carrier frequency corresponding with it according to this E-AGCH, then upstream data is carried on the E-PUCH of this E-DCH mapping;
A11 sends to Node B with the data that are carried on the E-PUCH;
A12, Node B selects the E-HICH corresponding with this E-PUCH based on the E-PUCH work carrier wave that distributes;
A13, Node B sends HARQ ACK or NACK message based on the E-HICH that selects to UE, whether needs the message that retransmits with the upstream data that receives to the UE feedback.
Wherein in the step a10, UE judges by the E-AGCH that receives scheduling authorization which work carrier wave high-speed data is carried on, in fact, Node B can also increase information unit on E-AGCH, the work frequency of carrier wave of the E-DCH that is about to choose for UE also utilizes E-AGCH to send to UE, then in the step a10, it is exactly optional that UE judges this step of the E-DCH corresponding with it according to E-AGCH.
By said process, UE has begun the transport process of high-speed data, in data transfer procedure, and Node
B can monitor the radio signal quality of the above-mentioned E-DCH work carrier wave of selecting for UE, Load distribution and/or the factors such as interference that are subjected to, and according to these situations, control UE switches E-DCH work carrier wave and corresponding control channel (E-AGCH and E-HICH), for example monitor the signal quality variation of the E-DCH place carrier wave of current UE transmission data as Node B, after carrier load interference big and/or that be subjected to is big, Node B can be in a plurality of work carrier waves of selecting for UE, it is good to choose other signal quality, the less carrier wave of other load interference less and/or that other is subjected to, and on the control channel E-AGCH of the carrier wave correspondence that this is chosen, send scheduling authorization to UE; When UE listens to scheduling authorization is when this E-AGCH sends, and just that the upstream data carrying is corresponding with this E-AGCH E-PUCH goes up the transmission data.Like this, when UE transmits high-speed data, Node B just can be according to signal quality and/or the Load distribution of carrier wave and/or the factors such as annoyance level that are subjected to of carrier wave, in time adjust work carrier wave and the associated control channel of UE, and needn't could adjust by layer three signaling, accelerated to regulate the speed, improved data transmission performance.
Wherein except carrier load distribution and/or signal quality and/or the communication capacity information such as annoyance level that are subjected to, it is also conceivable that the frequency that makes Node B come the switch operating carrier wave, for example scheduling strategy of NodeB etc. according to other factors.
In the above-mentioned steps, when selecting the work carrier wave for UE, selection all be the work carrier wave that UE can support, in fact,, also may implement the scheme of embodiment of the invention proposition if in the work carrier wave of selecting for UE, comprised the work carrier wave that UE can not support:
If in the work carrier wave of selecting for UE, comprised the work carrier wave that UE can not support, so can be only selecting, and in the work carrier wave supported of UE, for UE chooses and control UE switch operating carrier wave and corresponding control channel, to finish the transmission of high-speed data.
High speed business data transmission method based on above-mentioned proposition, the embodiment of the invention provides a kind of high speed data transmission system, Fig. 3 is the structural representation of the high speed data transmission system of embodiment of the invention proposition, and as known in the figure, the high speed data transmission system that the embodiment of the invention proposes comprises:
Base station 10 is used at least two of the support of user terminal selecting user terminal to be used for the work carrier wave of high speed data transfer and corresponding with the work carrier wave of each selection respectively control channel; And
When transmitting high speed data, in the work carrier wave and corresponding control channel of described selection, the switching of control user terminal takies the different operating carrier wave and corresponding control channel comes transmitting high speed data;
Radio network controller 20, be used for described base station be user terminal selecting the work carrier information, and control channel information corresponding with each carrier wave of working be notified to user terminal;
User terminal 30, be used to receive and identify the work carrier information and the corresponding control channel information of described radio network controller notice, and when transmitting high speed data, take in the work carrier wave of described selection the corresponding work carrier wave based on the control of described base station and come transmitting high speed data with this work carrier wave control corresponding channel.
The embodiment of the invention has also proposed a kind of base station, and Fig. 4 is the structural representation of the base station of embodiment of the invention proposition, and as known in the figure, described base station 10 comprises:
Work carrier wave selected cell 11, at least two work carrier waves that are used for high speed data transfer of selection user terminal support;
Work carrier wave notification unit 12, the work carrier information that is used for selecting, and corresponding with the work carrier wave of each selection respectively control channel information be notified to described user terminal; And
Control unit 13 is used in the high speed data transfer process, and the control user terminal switches the control channel that takies different carrier and correspondence thereof in the work carrier wave of described selection, finish the transmission of high-speed data.
The carrier wave selected cell 11 of wherein working generally selects to be used for for UE the work carrier wave of transmitting high speed data according to factors such as the quality of service feature parameter, UE ability and the current area wireless carrier of UE business, Load distribution.
Because Node B need could give UE with the work allocation of carriers of selecting by RNC,, work carrier wave notification unit 12 is used for being notified to the subelement of RNC based on will the work configuration information of the frequency of work carrier wave of carrier wave selected cell 11 selections and control channel of RL Setup Response message so comprising.
Wherein based on RL Setup Response message above-mentioned information to be notified to RNC only be a kind of preferred embodiment to this subelement, and in fact, this subelement also can take other means that above-mentioned information is notified to RNC.
Control unit 13 is general but to be not limited to be communication capacity information according to carrier wave, control UE and switch different carrier and the corresponding control channel thereof take in the work carrier wave that described work carrier wave selected cell 11 selects, for example also can be according to the information such as allocation strategy of Node B.When foundation communication capacity information Control, this control unit 13 specifically comprises:
Be used to monitor the subelement of the communication capacity information that each work carrier wave that described work carrier wave selected cell 11 selects can support; And
Be used for when the work carrier wave that is not taken by user terminal monitors the strong carrier wave of the communication capacity that can support than the work carrier wave that is taken by user terminal, the control user terminal switches to the subelement that continues transmitting high speed data on this unappropriated work carrier wave that monitors.
The embodiment of the invention also provides a kind of RNC, so that the work carrier wave of Node B selection and the configuration information of corresponding control channel are notified to UE.
Fig. 5 is the structural representation of the RNC of embodiment of the invention proposition, and as known in the figure, the RNC20 that the embodiment of the invention proposes comprises:
Receiving element 21 is used to receive and identify the frequency of work carrier wave of the selection that Node B sends and the configuration information of corresponding control channel;
Control channel carrier frequency acquiring unit 22, the configuration information that is used for the control channel that receives and identify according to described receiving element 21 obtains the frequency of control channel place carrier wave;
Notification unit 23 is used for the configuration information of the frequency of the work carrier wave that will select, corresponding control channel and the frequency of described control channel place carrier wave and is notified to UE.
The embodiment of the invention also provides a kind of UE, with the high-speed data transmission method of supporting that the embodiment of the invention proposes.
Fig. 6 is the structural representation of the UE of embodiment of the invention proposition, and as known in the figure, the UE 30 that the embodiment of the invention proposes comprises:
Receiving element 31 is used to receive and identify frequency, the configuration information of corresponding control channel and the frequency of described control channel place carrier wave of the work carrier wave that RNC sends;
Monitoring unit 32 is used to monitor described each control channel, and sends the information that is used to control the user terminal transmitting high speed data from described control channel reception Node B;
Data transmission unit 33 is used for the described information that listens to according to monitoring unit 32, switches the different carrier that takies in institute's carrier wave that shares out the work and the control channel of correspondence thereof, finishes the transmission of high-speed data.
Wherein said data transmission unit 33 specifically comprises:
Be used for the shared control channel of information, determine the subelement of the work carrier wave of this occupied control channel correspondence according to described control user terminal transmitting high speed data; And
Be used on the work carrier wave of determining and continue the subelement of transmitting high speed data on the corresponding control channel.
But the information that receives when described monitoring unit 32 comprises when being used in reference to the bright carrier information that switches to which work carrier wave, describedly determine that according to control channel the subelement of work carrier wave is optional, at this moment, data transmission unit 33 just can transmit high-speed data according to the information that monitoring unit 32 receives on the work carrier wave that switches to.
Wherein carrier information can but to be not limited to be carrier frequency or carrier identification.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.