CN101242343A - A traffic control method between wireless network controller and base station - Google Patents
A traffic control method between wireless network controller and base station Download PDFInfo
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- CN101242343A CN101242343A CNA2007100035068A CN200710003506A CN101242343A CN 101242343 A CN101242343 A CN 101242343A CN A2007100035068 A CNA2007100035068 A CN A2007100035068A CN 200710003506 A CN200710003506 A CN 200710003506A CN 101242343 A CN101242343 A CN 101242343A
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Abstract
The invention discloses a method for controlling flow between a wireless network controller and a base station, comprising the steps: the base station takes with a distributable buffer memory size in a capacity assignment frame of a high speed down share channel; the base station transmits the capacity assignment frame to the wireless network controller; and the wireless network controller transmits data to the base station, and the transmitted data size in a time space of the high speed down share channel is smaller than or equal to the distributable buffer memory size taken in the capacity assignment frame. The method fits a desectorizing principle of a PLC layer to make the base station transmit the distributed data flux, and to make the wireless network controller transmit data based on the distributed data flux; using the method of the invention, the wireless network controller can transmit a service data unit in any size to the base station, which increases the resource utilance of the system.
Description
Technical field
The present invention relates to the flow control frame in the mobile communication system, be specifically related to carry out between a kind of radio network controller and the base station method of flow control.
Background technology
In order to improve the throughput of high data traffic of user and system, the R5 standard agreement of 3GPP has been introduced a kind of high-speed packet and has been shared transmission channel (High Speed Downlink Shared Channel: high speed shared channels), the physical channel that this channel shone upon adopts time-division and sign indicating number branch mode, and this channel has adopted and has mixed (HARQ) and Adaptive Modulation and Coding (AMC) technology of retransmitting automatically, makes peak rate can reach 10.8Mbps～30Mbps.Its final purpose is by providing high speed packet service to be inserted the capacity that increases system and reduces transmission delay to improve the requirement of user to service quality (Qos).
The 3GPP consensus standard is strengthened the paging state (CELL_PCH/URA_PCH) under the front access state (CELL_FACH) under Radio Resource control (RRC) connection mode and/or Radio Resource control (RRC) connection mode, promptly also can use high speed downlink packet access (HSDPA) technology, will abbreviate reinforcement connection mode common condition as at CELL-FACH and/or the shared at a high speed grouping access of CELL_PCH/URA_PCH state use (HSDPA) technology at this at CELL_FACH and/or CELL_PCH/URA_PCH.When subscriber equipment was in reinforcement connection mode common condition, the data of public control logic channel (CCCH), special-purpose control logic channel (DCCH), dedicated service logic channel (DTCH), multimedia control logic channel (MCCH) and multimedia service logic channel logic channels such as (MTCH) all can be mapped on the high-speed physical downlink shared channel (HS-PDSCH) and send.
Can dispatch data with only transmission block in order to guarantee medium access control entity (MAC-hs), can introduce segmentation at the medium access control entity (MAC-hs) of high speed descending sharing channel, therefore need not to carry out segmentation at RLC (wireless chain control layer) entity for the medium access control service data unit that is mapped to the high-speed downstream channel, also need not filling bit, therefore also just need not to RLC physical arrangements RLC PDU SIZE (the protocol Data Unit size of wireless chain control layer).
But because the scheduling to data is carried out in the base station, for fear of radio network controller when sending data to the base station, data are overflowed, therefore to carry out flow control between base station and the radio network controller, also be the metadata cache amount that radio network controller can need transmission to the base station application, and radio network controller distribute data flow can be given in the base station.Base station assigns is to characterize by Maximum MAC-d PDU Length (maximum length of the protocol Data Unit of medium access control entity) and HS-DSCH Credits (the PDU number of the Maximum Mac-flow PDU Length that can send in the time interval of a high speed descending sharing channel) to the flow of radio network controller in the present 3GPP standard.
Prior art does not also adapt to segmenting principle, can not carry out flow control between radio network controller and base station the method for rlc layer.
Summary of the invention
The invention provides the method for carrying out flow control between a kind of radio network controller and the base station, this method can adapt to the principle of the not segmentation of rlc layer, make the base station transmit the data traffic that it distributes, and make radio network controller send data by the data traffic of being distributed.
The technical solution used in the present invention is:
The method of its data traffic of distributing is transmitted in a kind of base station, it is characterized in that, comprising:
The buffer memory size that can distribute is carried in step 1, base station in the capacity allocation frame of high speed descending sharing channel.
Further, described step 1 is specially: when the capacity of high speed descending sharing channel is distributed to radio network controller in the base station, carry the buffer memory size that can distribute in the capacity allocation frame of high speed descending sharing channel; And send described capacity allocation frame.
Further, described buffer memory size refers to the maximum data capacity that the time interval of a high speed descending sharing channel can send.
Further, described buffer memory size takies 16 bits in the capacity allocation frame.
The present invention also provides the method for a kind of radio network controller according to the data traffic transmission data of being distributed, and it is characterized in that, comprising:
Step 1, radio network controller receive the capacity allocation frame from the base station;
Step 2, radio network controller send data to the base station, and the data volume that is sent in the time interval of a high speed descending sharing channel is less than or equal to the buffer memory size that can distribute of carrying in the described capacity allocation frame.
Further, described buffer memory size refers to the maximum data capacity that the time interval of a high speed descending sharing channel can send.
Further, described buffer memory size takies 16 bits in the capacity allocation frame.
Further, in the described step 2: radio network controller sends data to the base station according to the capacity assignment information that carries in the described capacity allocation frame; Described capacity assignment information comprises the time interval that largest buffered size that the time interval of the time interval number that high speed descending sharing channel buffer memory size can be sent continuously, a high speed descending sharing channel can send and high speed descending sharing channel buffer memory size can be sent out.
The present invention also provides the method for carrying out flow control between a kind of radio network controller and the base station, it is characterized in that, comprising:
The buffer memory size that can distribute is carried in step 1, base station in the capacity allocation frame of high speed descending sharing channel;
Step 2, base station send described capacity allocation frame to radio network controller;
Step 3, radio network controller send data to the base station, and the data volume that is sent in the time interval of a high speed descending sharing channel is less than or equal to the buffer memory size that can distribute of carrying in the described capacity allocation frame.
Further, in the described step 1, when the capacity of high speed descending sharing channel is distributed to radio network controller in the base station, in described capacity allocation frame, carry the buffer memory size that to distribute.
Further, also exist before the described step 1:
Radio network controller wherein carries the buffer memory size that needs transmission to the capacity request frame of base station transmission high speed descending sharing channel.
Further, described buffer memory size refers to the maximum data capacity that the time interval of a high speed descending sharing channel can send.
Further, described buffer memory size takies 16 bits in the capacity allocation frame.
Further, in the described step 3: radio network controller sends data to the base station according to the capacity assignment information that carries in the described capacity allocation frame; Described capacity assignment information comprises the time interval that largest buffered size that the time interval of the time interval number that high speed descending sharing channel buffer memory size can be sent continuously, a high speed descending sharing channel can send and high speed descending sharing channel buffer memory size can be sent out.
After having adopted method of the present invention, radio network controller can adopt the service data unit of any size to send to the base station, improves the resource utilization of system.
Description of drawings
Fig. 1 is the concrete enforcement schematic diagram that carries out the method for flow control between a kind of radio network controller of the present invention and the base station;
Fig. 2 is a structural representation of strengthening the capacity allocation frame of common condition high speed descending sharing channel under the connection mode.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
The present invention realizes by carry the buffer memory size that can distribute in the capacity allocation frame of high speed descending sharing channel.
Carry out flow control methods between a kind of radio network controller and the base station, as shown in Figure 1, may further comprise the steps:
(101) high speed descending sharing channel requests for capacity: radio network controller wherein carries the buffer memory size that needs transmission to the capacity request frame of base station transmission high speed descending sharing channel;
(102) high speed descending sharing channel capacity allocation: when the capacity of high speed descending sharing channel is distributed to radio network controller in the base station, in the capacity allocation frame of high speed descending sharing channel, carry the buffer memory size that to distribute, and return the capacity allocation frame of high speed descending sharing channel to radio network controller;
This step can be used as the method that its data traffic of distributing is transmitted in a kind of base station simultaneously.
(103) send data according to the capacity that distributes: radio network controller receives described capacity allocation frame, send data to the base station according to the capacity assignment information that carries in this capacity allocation frame, and the data volume of the base station that sends to is less than or equal to described buffer memory size in the time interval of a high speed descending sharing channel.
This step can be used as a kind of radio network controller sends data according to the data traffic of being distributed method simultaneously.
Described buffer memory size refers to the maximum data capacity that the time interval of a high speed descending sharing channel can send; The buffer memory size in the capacity allocation frame can but be not limited to take 16 bits.
Wherein, capacity assignment information comprises: the time interval that largest buffered size that the time interval number that high speed descending sharing channel buffer memory size can be sent continuously, the time interval of a high speed descending sharing channel can send and high speed descending sharing channel buffer memory size can be sent out.
Fig. 2 is a structural representation of strengthening the capacity allocation frame of common condition high speed descending sharing channel under the connection mode; Wherein:
Spare bit 7-6: identifying the 6th and the 7th bit is not use bit;
Whether Congestion Status is used for the base station and indicates the Internet resources of transport layer congested;
CmCH-PI is the indication of Common transport channel priority;
Buffer Size is meant the largest buffered size that the time interval of a high speed descending sharing channel can send;
HS-DSCH Interval is meant the time interval that capacity allocation frame high speed DSCH Downlink Shared Channel buffer memory size can be sent out;
HS-DSCH Repetition Period refers to the time interval number that capacity allocation frame high speed DSCH Downlink Shared Channel buffer memory size can be sent continuously.
Spare Extension is meant the bit that can expand in the future.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (14)
1. the method for its data traffic of distributing is transmitted in a base station, it is characterized in that, comprising:
The buffer memory size that can distribute is carried in step 1, base station in the capacity allocation frame of high speed descending sharing channel.
2. the method for claim 1 is characterized in that, described step 1 is specially: when the capacity of high speed descending sharing channel is distributed to radio network controller in the base station, carry the buffer memory size that can distribute in the capacity allocation frame of high speed descending sharing channel; And send described capacity allocation frame.
3. the method for claim 1 is characterized in that, described buffer memory size refers to the maximum data capacity that the time interval of a high speed descending sharing channel can send.
4. the method for claim 1 is characterized in that, described buffer memory size takies 16 bits in the capacity allocation frame.
5. a radio network controller sends the method for data according to the data traffic of being distributed, and it is characterized in that, comprising:
Step 1, radio network controller receive the capacity allocation frame from the base station;
Step 2, radio network controller send data to the base station, and the data volume that is sent in the time interval of a high speed descending sharing channel is less than or equal to the buffer memory size that can distribute of carrying in the described capacity allocation frame.
6. method as claimed in claim 5 is characterized in that, described buffer memory size refers to the maximum data capacity that the time interval of a high speed descending sharing channel can send.
7. method as claimed in claim 5 is characterized in that, described buffer memory size takies 16 bits in the capacity allocation frame.
8. method as claimed in claim 5 is characterized in that, in the described step 2: radio network controller sends data to the base station according to the capacity assignment information that carries in the described capacity allocation frame; Described capacity assignment information comprises the time interval that largest buffered size that the time interval of the time interval number that high speed descending sharing channel buffer memory size can be sent continuously, a high speed descending sharing channel can send and high speed descending sharing channel buffer memory size can be sent out.
9. the method for carrying out flow control between radio network controller and the base station is characterized in that, comprising:
The buffer memory size that can distribute is carried in step 1, base station in the capacity allocation frame of high speed descending sharing channel;
Step 2, base station send described capacity allocation frame to radio network controller;
Step 3, radio network controller send data to the base station, and the data volume that is sent in the time interval of a high speed descending sharing channel is less than or equal to the buffer memory size that can distribute of carrying in the described capacity allocation frame.
10. method as claimed in claim 9 is characterized in that, in the described step 1, when the capacity of high speed descending sharing channel is distributed to radio network controller in the base station, carries the buffer memory size that can distribute in described capacity allocation frame.
11. method as claimed in claim 9 is characterized in that, also exists before the described step 1:
Radio network controller wherein carries the buffer memory size that needs transmission to the capacity request frame of base station transmission high speed descending sharing channel.
12. method as claimed in claim 9 is characterized in that, described buffer memory size refers to the maximum data capacity that the time interval of a high speed descending sharing channel can send.
13. method as claimed in claim 9 is characterized in that, described buffer memory size takies 16 bits in the capacity allocation frame.
14. method as claimed in claim 9 is characterized in that, in the described step 3: radio network controller sends data to the base station according to the capacity assignment information that carries in the described capacity allocation frame; Described capacity assignment information comprises the time interval that largest buffered size that the time interval of the time interval number that high speed descending sharing channel buffer memory size can be sent continuously, a high speed descending sharing channel can send and high speed descending sharing channel buffer memory size can be sent out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100035068A CN101242343A (en) | 2007-02-05 | 2007-02-05 | A traffic control method between wireless network controller and base station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100035068A CN101242343A (en) | 2007-02-05 | 2007-02-05 | A traffic control method between wireless network controller and base station |
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| Publication Number | Publication Date |
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| CN101242343A true CN101242343A (en) | 2008-08-13 |
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| CNA2007100035068A Pending CN101242343A (en) | 2007-02-05 | 2007-02-05 | A traffic control method between wireless network controller and base station |
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- 2007-02-05 CN CNA2007100035068A patent/CN101242343A/en active Pending
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Application publication date: 20080813 |