CN1832594A - Method of processing controlling frame by frame protocol in base station - Google Patents
Method of processing controlling frame by frame protocol in base station Download PDFInfo
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- CN1832594A CN1832594A CNA2005100536560A CN200510053656A CN1832594A CN 1832594 A CN1832594 A CN 1832594A CN A2005100536560 A CNA2005100536560 A CN A2005100536560A CN 200510053656 A CN200510053656 A CN 200510053656A CN 1832594 A CN1832594 A CN 1832594A
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Abstract
This invention relates to a method for processing frame protocol control frames in the base station including: A, determining the destination address of an up physical channel of a wireless link set where the frame protocol process unit places, B, when the frame protocol process unit receives the control frame, it judges if said control frame is the outer ring power control unit, if so, it takes out the target S/I ratio in the control frame to send it to the up physical channel.
Description
Technical field
The present invention relates to the Radio Access Network communication technology, particularly relate to the method for handling controlling frame by frame protocol in a kind of base station.
Background technology
Along with radio network technique and professional development, the following wireless interface technology that is fit to high-speed data communication more and more develops towards adaptive direction, and the time requirement of wireless network processing signaling is also further shortened.Therefore, the base station will stop increasing reaching with control and business with the closely-related signaling of wave point physical layer and transmit relevant process, and bear the radio resource management function that part is separated from radio network controller (RNC, RadioNetwork Controller).
Simultaneously, development along with the network transmission technology of internet protocol-based IP, also introduced the IP transmission technology in the wireless network, thereby made in the wireless network architecture each network element, but directly hung on the edge router of IP network no longer for to present tree-like annexation; Like this, just can set up the transmission channel of direct communication between base station in the wireless network and the base station, for the direct communication at wireless network layer between the base station provides the foundation.
This logic interfacing of communicating by letter between base station and radio network controller is called as IuB (Inter-face between an RNC and a Node B) interface.It provides two-way data and controls the transmission of signaling between base station and radio network controller.Usually the application layer protocol of the protocol stack of user's face of IuB interface is the IuB Frame Protocol, and the IuB Frame Protocol provides following and professional transmission relevant function: the 1) transmission of user data; 2) the node synchronization mechanism between the support base station; 3) the transmission information relevant between the base station with base station and cell status; 4) the relevant control information of transmission between base station and radio network controller is as external circule power control, SCHTFCI (transformat merge indicate) signaling, radio interface parameter etc.
At present, handle the method for controlling frame by frame protocol in the base station, its flow chart as shown in Figure 1.This method comprises:
Step 11: when the base station receives that Radio Link that RNC issues is set up request, create a NodeB communication context process;
Step 12: when the control frame that radio network controller issues is received in the Frame Protocol unit, judge whether this control frame is the external circule power control frame, if, the target signal interference ratio of this power control frame is taken out, send in the NBCC process and handle, otherwise, carry out other processing.
Step 13:NBCC process is handled the pairing uplink physical channel of this user that the target signal interference ratio is forwarded under the Radio Link collection;
Step 14: when the NBCC process is received the deletion Radio Link request that radio network controller issues, delete the channel of this Radio Link correspondence.
In the WCDMA system, when the base station receives that Radio Link that RNC issues is set up request, create base station communication context (NBCC) process, described NBCC process remains with each Frame Protocol unit F P corresponding reference uplink physical channel ULDPCH information; When the Frame Protocol unit receives the control frame that RNC issues by atm link adaptation layer 2 (AAL2), earlier judge whether this control frame is the external circule power control frame, if then the FP unit comes out to be dealt into the NBCC process with target signal interference ratio (SirTarget) parameter extraction in this control frame.Described NBCC process is pairing with reference to uplink physical channel ULDPCH information according to each Radio Link that is kept, and SirTarget is forwarded to reference uplink physical channel ULDPCH under this Radio Link collection RL SET, and its schematic diagram as shown in Figure 2.
By said method as can be known, the shortcoming of prior art is: 1) in actual applications, have a large amount of frequent control frames to transmit through NBCC, increased system loading, reduced power system capacity; 2) control frame is very high to the real-time requirement, has increased system's time delay after transmitting through NBCC, has reduced the accuracy of control.
Summary of the invention
The technical problem that the present invention solves provides the method for handling controlling frame by frame protocol in a kind of base station, to solve when the Frame Protocol processing unit receives the control frame that RNC issues, directly being transmitted to corresponding uplink physical channel handles, thereby reduce the time delay and the complexity thereof of system, improve the accuracy of power control.
For addressing the above problem, handle the method for controlling frame by frame protocol in a kind of base station of the present invention, comprise step:
Determine the destination address of Frame Protocol processing unit at all uplink physical channels of Radio Link collection;
When the Frame Protocol processing unit is received control frame, judge whether this control frame is the external circule power control frame, if, the target signal interference ratio in this control frame is taken out, send to uplink physical channel according to destination address.
Described method also comprises: measure the signal interference ratio of uplink physical channel, whether judge this signal interference ratio greater than described target signal interference ratio, if notifying user equipment reduces the power of signal; Otherwise notifying user equipment improves the power of signal.
By setting up the order way address that all Radio Links under the Frame Protocol processing unit are determined in Radio Link request and the request of deletion Radio Link.
The described process of setting up Radio Link comprises step:
Receive when setting up the Radio Link request when the base station, create the base station communication context process;
Described base station communication context process is set up Frame Protocol processing unit solicited message, and the Frame Protocol processing unit obtains the order way address of the Radio Link of this base station communication context process, and replys and set up response.The process of described deletion Radio Link comprises step:
When the request of deletion Radio Link is received in the base station, the channel of this Radio Link correspondence of base station communication context process-kill, and the notification frame protocol processing unit is upgraded the order way address information of uplink physical channel;
The Frame Protocol processing unit is replied solicited message to the base station communication context unit and is upgraded response, and the base station communication context unit is to radio network controller feedback deletion response.
Described request information comprises: information type, with reference to uplink physical channel number, demodulating unit number.
Described Frame Protocol processing unit receives the control frame that issues by atm adaptation layer 2.
Compared with prior art, the present invention has following beneficial effect: when base station foundation or the request of deletion Radio Link, the NBCC process all with its down the uplink physical channel of each Radio Link of Radio Link collection number send to the FP processing unit, when the FP processing unit is received the control frame that RNC issues, directly being forwarded to the corresponding uplink physical channel of this user according to the type of control frame handles, and not needing to send to earlier the NBCC unit, it transmits processing again.Therefore, have in the FP processing unit directly control frame to be sent, can effectively reduce the time delay and the load thereof of system, increase the accuracy of power control, thereby reduce the complexity of system.
Description of drawings
The efficient flow chart of handling the method for controlling frame by frame protocol in the base station of Fig. 1 prior art;
Fig. 2 is a processing structure chart of transmitting control frame in the prior art by the NBCC process;
Fig. 3 is an efficient flow chart of handling the method for controlling frame by frame protocol in the base station of the present invention;
Fig. 4 is that Radio Link is set up flow chart among Fig. 3;
Fig. 5 is a Radio Link deletion flow chart among Fig. 3.
Embodiment
In Wideband Code Division Multiple Access (WCDMA) WCDMA system, IUB (Interface between an RNC and a NodeB) interface can be divided into data surface and signaling plane.Processing at base station node B side IUB interface signaling face is handled by NodeB applying unit (NBAP, Node B Application Part); The data surface of IUB interface is by Frame Protocol (FP, Frame Protocol) cell processing.Described NodeB uses processing unit and is used to handle all IUB interface NBAP signalings; Described Frame Protocol processing unit is used to realize that control frame is at atm adaptation layer 2 (AAL2, ATM Adaptation Layer type 2) forwarding between link and the DSP (comprising coding and decoding) realizes relevant signaling process and statistics debug function that controlling frame by frame protocol is transmitted.Be divided into uplink frame agreement and downlink frame agreement according to data flow.
Realization principle of the present invention is: at first, when the base station receives that Radio Link that radio network controller issues is set up request, create base station communication context (NBCC, Node B Communication Context) process; Secondly, described NBCC process is set up solicited message to Frame Protocol processing unit transmit frame protocol processing unit, the Frame Protocol processing unit obtains the uplink physical channel number of each Radio Link of Radio Link collection under this NBCC process, and replys to the NBCC process and to set up response; Once more, when the Frame Protocol processing unit is received the control frame that radio network controller issues, judge whether this control frame is the external circule power control frame, if the target signal interference ratio in this control frame taken out send to its corresponding uplink physical channel; Then, measure the signal interference ratio of uplink physical channel, and the signal interference ratio and the target signal interference ratio of the uplink physical channel of this actual measurement compared, come the increase and decrease of control signal power; Otherwise, carry out other Frame, control frame processing.Once more, when the NBCC process is received the Radio Link removal request that radio network controller issues, delete the channel of this Radio Link correspondence, and timely notification frame protocol processing unit update request information; At last, the Frame Protocol processing unit is replied Frame Protocol information updating response to the NBCC unit, and the NBCC unit is to radio network controller feedback deletion response.
The present invention is described further below in conjunction with accompanying drawing.
See also Fig. 3, for handling the flow chart of the method for controlling frame by frame protocol in the base station of the present invention; Described method comprises:
Step S11: determine the destination address of Frame Protocol processing unit at all uplink physical channels of Radio Link collection;
Step S12: when the Frame Protocol processing unit is received control frame, judge whether this control frame is the external circule power control frame, if, the target signal interference ratio in this control frame is taken out, send to uplink physical channel (step S13) according to the order way address.
When base station node B receives that Radio Link (RL) that radio network controller (RNC) issues is set up request, create a NodeB communication context (NBCC, Node B Communication Context) process; Be used for resource management and signaling process under this NBCC.Described NBCC process is set up corresponding uplink physical channel (ULDPCH, Uplink Dedicated Physical Channel), down physical channel (DLDPCH, Downlink Dedicated Physical Channel), code combination transmission channel (CCTRCH, Coded Composite Transport Channel), and these information notification frame protocol processing unit.Can comprise a plurality of Radio Link collection (RL SET, Radio LinkSet) under the NBCC, a RL SET can comprise a plurality of Radio Links (RL, Radio Link).In the WCDMA system, RNC can issue the external circule power control control frame, and this control frame is dealt into the FP processing unit by atm adaptation layer 2 (AAL2).The FP processing unit is by judging the type of this control frame, if this control frame is the external circule power control frame, the FP processing unit comes out to be dealt into corresponding uplink physical channel with target signal interference ratio (SirTarget) parameter extraction in this frame; Then, measure the signal interference ratio of uplink physical channel, its measure equation is: the spreading factor of signal interference ratio=(received signal code territory power/interference signal code domain power) downlink physical common signal channel, that is: SIR=(RSCP/ISCP) SF, wherein, SIR (Signal to Interference Ratio) is the ratio of signal and interference, RSCP (Received Signal Code Power, unbiasedmeasurement of the received power on one code.) be the received signal code domain power, i.e. the no inclined to one side measured value of the received signal on code word; ISCP (Interference Signal CodePower, the interference on the received signal) is the interference signal code domain power, i.e. the interference of received signal; SF refers to the spreading factor of downlink physical common signal channel (DPCCH).The reference point of described sir measurement is the reception antenna mouth.This value is measured acquisition from the DPCCH of Radio Link collection, if the Radio Link collection comprises a more than wireless links, the SIR that then reports be Radio Link concentrate the linearity of the SIR of each Radio Link to add up and, in addition, if diversity reception mode is adopted in the sub-district of NodeB, then the SIR of Radio Link is the linearity of the SIR on each reception antenna sum that adds up.Then, judge that whether this signal interference ratio of measuring uplink physical channel is greater than the target signal interference ratio that takes out, if notifying user equipment reduces the power of this upward signal from the external circule power control frame; Otherwise notifying user equipment improves the power of upward signal.If this control frame is not the external circule power control frame, then the Frame Protocol processing unit is just handled according to other Frame or control frame.
See also Fig. 4, be the flow chart of setting up a Radio Link of the embodiment of the invention.Its process of setting up link comprises:
Step M11: when the base station receive that radio network controller issues set up the Radio Link request time (require to set up and once set up two links), base station communication context NBCC process is created in the base station;
Step M12: described NBCC process is set up with the request of article one Frame Protocol and the request of second Frame Protocol of Frame Protocol processing unit respectively or is set up the request of two Frame Protocol processing units simultaneously, the Frame Protocol processing unit obtains the destination address of the Radio Link of Radio Link collection under this NBCC process, and replys the Frame Protocol processing unit and set up response;
Step M13:NBCC receives the unit and replys Radio Link to radio network controller and set up response when response is set up in the answer of Frame Protocol processing unit.
As shown in Figure 4, be two links of a link setup.Described link is used for Signalling exchange, conversation or data processing, belongs to two different link set RLSET respectively, and a Frame Protocol FP processing unit is arranged under each RLSET.Set up in the request message in NBCC process and Frame Protocol processing unit 1, uplink physical channel ULDPCH number of article one Radio Link (RL1), the demodulating unit at RL1 place number can be brought Frame Protocol processing unit 1; It is as shown in table 1 that Frame Protocol is set up the message structure of asking:
Table 1
| IE/Group Name | Semantics description |
| Message Type | Type of message |
| NddCpuId | Demodulating unit ID |
| ULDPCH ID | With reference to ULDPCH ID |
| abData | FP sets up other message parameters |
Equally in setting up second Frame Protocol request message, can number bring Frame Protocol with uplink physical channel ULDPCH number of RL2, the demodulating unit at RL2 place and handle FP unit 2.Like this when setting up link, each Frame Protocol processing unit under this NBCC just obtains the demodulating unit number of this Frame Protocol processing unit place RL SET, with reference to ULDPCH number.When each Frame Protocol processing unit is received control frame, judge according to the type of this control frame whether this control frame is the external circule power control frame, if this control frame is the external circule power control frame, just the target signal interference ratio (SirTarget) with this control frame takes out, and sends on its corresponding reference uplink physical channel ULDPCH to handle.Measure the signal interference ratio of signal in this uplink physical channel then according to described formula: SIR=(RSCP/ISCP) SF, judge that more whether this signal interference ratio is greater than described target signal interference ratio, if greater than, illustrate that this upward signal is stronger, notifying user equipment reduces this user's transmitting power, if less than, a little less than illustrating that upward signal, notifying user equipment improves this user's transmitting power.So that the Frame Protocol processing unit is directly transmitted the control frame of receiving, be convenient to control.
Please consulting Fig. 5 again, is the flow chart of a Radio Link of deletion.The process of its deletion Radio Link comprises:
Step N11: when the NBCC process is received the deletion Radio Link request that radio network controller issues, (require deletion article one Radio Link RL1), directly delete the channel of this Radio Link correspondence, and variation has taken place, the information of this variation of request renewal in notification frame protocol processing unit corresponding reference uplink physical channel;
Step N12: after the Frame Protocol processing unit is received this information requested, upgrade the information of this Radio Link collection, and reply response, and response has been deleted to radio network controller answer link after receiving response in the NBCC unit to the NBCC unit.
As shown in Figure 5, if there are two Radio Link collection to be respectively under the described NBCC unit: RL SET1, RL SET2.Comprise two wireless links under the described Radio Link collection RL SET1, be respectively: Radio Link RL1 and Radio Link RL2 (wherein, RL1 is a reference link); Comprise a wireless links RL3 under the described Radio Link collection RL SET2, under each Radio Link collection RL SET a Frame Protocol processing unit is arranged.When the NBCC process is received the deletion Radio Link RL1 solicited message that radio network controller issues, directly delete the channel of this Radio Link correspondence, because the reference RL1 of RL SET1 changes, described NBCC process is with the information notification frame protocol processing unit 1 of described deletion RL1, being that Radio Link RL1 is pairing with reference to uplink physical channel variation has taken place, the information that the request update request should change, wherein the message structure of this Frame Protocol processing unit update request is as shown in table 2:
Table 2
| IE/Group Name | Semantic description |
| Message Type | Type of message |
| NddCpuId | Demodulating unit ID |
| ULDPCH ID | With reference to ULDPCH ID |
| abData | Other message parameters of FP information updating |
That is to say, when NBCC process-kill Radio Link RL1, these information need be upgraded by Frame Protocol update inquiry information notification frame protocol processing unit 1.So that when the Frame Protocol processing unit is received control frame again, control frame is forwarded in the uplink physical channel of corresponding Radio Link, can in time handle the control frame of receiving according to new corresponding relation.
Therefore, after the Frame Protocol processing unit is received the control frame that radio network controller (RNC) issues, earlier judge whether this control frame is the external circule power control frame, if external circule power control frame, the target signal interference ratio that then takes out in this control frame directly is transmitted to corresponding uplink physical channel, does not transmit processing and do not need to arrive first base station applies unit NBCC.Because the present invention reduced this step, thereby reduced propagation delay time end to end, increased control accuracy, reduced the complexity of system loading and system.
In addition, the present invention is not only for setting up and practicality during the deletion Radio Link, and for Radio Link increase, the reprovision flow process is practical equally.Promptly when the reference ULDPCH under a certain RLSET under this NBCC process changes, need the NBCC process in time to notify each Frame Protocol processing unit, promptly send a piece of news and notify its corresponding Frame Protocol unit by the NBCC unit, this notice is when the Frame Protocol processing unit is set up solicited message, and the entity of the pairing demodulating unit of Frame Protocol processing unit carried out when number changing.Described message mainly comprises the uplink physical channel number of this user's correspondence, when receiving control frame with convenient Frame Protocol processing unit, according to up-to-date this user down the entity of corresponding demodulating unit number transmit this control frame.So that FP module forwards control frame.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1, handle the method for controlling frame by frame protocol in a kind of base station, it is characterized in that, comprise step:
A, determine the destination address of Frame Protocol processing unit at all uplink physical channels of Radio Link collection;
B, when the Frame Protocol processing unit is received control frame, judge whether this control frame is the external circule power control frame, if, the target signal interference ratio in this control frame is taken out, send to uplink physical channel according to destination address.
2, according to the method for handling controlling frame by frame protocol in the described base station of claim 1, it is characterized in that described method also comprises: measure the signal interference ratio of uplink physical channel, judge that whether this signal interference ratio is greater than described target signal interference ratio, if notifying user equipment reduces the power of signal; Otherwise notifying user equipment improves the power of signal.
3, according to the method for handling controlling frame by frame protocol in the described base station of claim 1, it is characterized in that, in the described steps A by setting up the order way address that all Radio Links under the Frame Protocol processing unit are determined in Radio Link request and the request of deletion Radio Link.
4, according to the method for handling controlling frame by frame protocol in the described base station of claim 3, it is characterized in that the described process of setting up Radio Link comprises step:
A) receive when setting up the Radio Link request when the base station, create the base station communication context process;
B) described base station communication context process is set up Frame Protocol processing unit solicited message, and the Frame Protocol processing unit obtains the order way address of the Radio Link of this base station communication context process, and replys and set up response.
5, according to the method for handling controlling frame by frame protocol in the described base station of claim 3, it is characterized in that the process of described deletion Radio Link comprises step:
M) when the request of deletion Radio Link is received in the base station, the channel of this Radio Link correspondence of base station communication context process-kill, and the notification frame protocol processing unit is upgraded the order way address information of uplink physical channel;
N) the Frame Protocol processing unit is replied solicited message renewal response to the base station communication context unit, and the base station communication context unit is to radio network controller feedback deletion response.
6, according to the method for handling controlling frame by frame protocol in claim 4 or the 5 described base stations, it is characterized in that step b) or step m) described in solicited message comprise: information type, with reference to uplink physical channel number, demodulating unit number.
According to the method for handling controlling frame by frame protocol in the described base station of claim 1, it is characterized in that 7, the processing unit of Frame Protocol described in the step B receives the control frame that issues by atm adaptation layer 2.
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| CNB2005100536560A CN100421481C (en) | 2005-03-09 | 2005-03-09 | Method of processing controlling frame by frame protocol in base station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330502B (en) * | 2007-06-18 | 2012-07-25 | 大唐移动通信设备有限公司 | Method and device for tracing signaling FP frame in RNC |
| CN104080200A (en) * | 2013-03-26 | 2014-10-01 | 成都鼎桥通信技术有限公司 | Data transmission method of base station |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE280411T1 (en) * | 2000-01-07 | 2004-11-15 | Ibm | METHOD AND SYSTEM FOR FRAMEWORK AND PROTOCOL CLASSIFICATION |
| MXPA04005859A (en) * | 2001-11-16 | 2004-10-11 | Lg Electronics Inc | Method for trasmitting power control information for hs-scch in mobile communication system. |
| CN1214591C (en) * | 2002-05-29 | 2005-08-10 | 华为技术有限公司 | Method of realizing data transmission between stations based on frame protocol |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330502B (en) * | 2007-06-18 | 2012-07-25 | 大唐移动通信设备有限公司 | Method and device for tracing signaling FP frame in RNC |
| CN104080200A (en) * | 2013-03-26 | 2014-10-01 | 成都鼎桥通信技术有限公司 | Data transmission method of base station |
| CN104080200B (en) * | 2013-03-26 | 2017-11-14 | 成都鼎桥通信技术有限公司 | The data transmission method of base station |
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