CN101123574B - Method for configuring resorting buffer size of non-confirmed mode - Google Patents
Method for configuring resorting buffer size of non-confirmed mode Download PDFInfo
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- CN101123574B CN101123574B CN200610109764XA CN200610109764A CN101123574B CN 101123574 B CN101123574 B CN 101123574B CN 200610109764X A CN200610109764X A CN 200610109764XA CN 200610109764 A CN200610109764 A CN 200610109764A CN 101123574 B CN101123574 B CN 101123574B
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Abstract
The present invention discloses a method of configuring the size of an unacknowledged mode reorder buffer and is created to resolve the problem that the prior art cannot utilize the high-speed downlink packet access characteristic to send data. The method includes three steps. Firstly, a terminal sends a radio resource control connection establishment request signal carrying the total buffer size parameter cells of the acknowledged mode radio link control layer and the high-speed media access control layer to a radio network controller; secondly, the radio network controller decides to use the high-speed downlink packet access characteristic and, according to the current signal data configuration and the service data configuration, computes the reorder buffer size parameter of the unacknowledged mode high-speed media access control layer; finally, the reorder buffer size parameter of the unacknowledged mode high-speed media access control layer is sent to the node B by means of a radio link establishment request signal. The present invention realizes the mapping of signal radio barrier in a high-speed downlink charging channel and data transmission according to the high-speed downlink packet access characteristic.
Description
Technical field
The present invention relates to wireless communication system high speed media access control layer, particularly the configuration Unacknowledged Mode high speed medium access control layer (MAC-HS) method of cache size (MAC-hs Reordering Buffer Size for UM) that reorders.
Background technology
Total RLC AM and MAC-hs buffer size (total cache size of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS)) parameter, reorder total cache size of buffer memory of RLC AM (affirmation mode wireless chain control layer) the transmitting-receiving buffer memory of terminal and MAC-hs (high speed medium access control layer (MAC-HS)) has been described, reorder maximum total cache size of entity of all RLC AM entities of terminal support just and all MAC-hs.This total buffer memory is dynamically shared multiplexing by RLC AM entity and the MAC-hs entity that reorders.For example, when not using MAC-hs to reorder entity, this total buffer memory will all take use by RLC AM entity.
MAC-hs (high speed medium access control layer (MAC-HS)) buffer memory that reorders is divided into two types:
A kind of MAC-hs of being Reordering Buffer for UM (Unacknowledged Mode high speed medium access control layer (MAC-HS) reorder buffer memory) just uses the signaling data of Unacknowledged Mode of high-speed descending grouping access characteristic and the buffer memory that reorders of business datum.MAC-hs Reordering Buffer Size for UM (Unacknowledged Mode high speed medium access control layer (MAC-HS) reorder cache size) is used to indicate the cache size of the buffer memory that reorders of the signaling data of this Unacknowledged Mode that uses high-speed descending grouping access characteristic and business datum;
Another kind is MAC-hs Reordering Buffer for AM (an affirmation mode high speed medium access control layer (MAC-HS) reorder buffer memory), just uses the signaling data of affirmation pattern of high-speed descending grouping access characteristic and the buffer memory that reorders of business datum.MAC-hs Reordering Buffer Size for AM (affirmation mode high speed medium access control layer (MAC-HS) reorder cache size) is used to indicate the cache size of the buffer memory that reorders of the signaling data of this affirmation pattern of using high-speed descending grouping access characteristic and business datum.
When using high-speed descending grouping access characteristic, MAC-hs Reordering Buffer Size for UM need be known by Node B, so that the signaling data of the Unacknowledged Mode of Node B control use high-speed descending grouping access characteristic and the downlink data amount of business datum, the situation that buffer area overflows when avoiding terminal to receive corresponding data takes place, it is normal to guarantee that terminal receives corresponding data, do not lose, but, in prior protocols, in " the Radio Resource control connection is set up request " signaling, can't carry TotalRLC AM and MAC-hs buffer size parameter information, can't realize that Signaling Radio Bearer is mapped to the high speed descending sharing channel process, can't finish agreement and clearly allow Signaling Radio Bearer to be mapped to high speed descending sharing channel, utilize high-speed descending grouping access characteristic to carry out the function that data send.
Summary of the invention
For defective and the deficiency that overcomes prior art, the object of the present invention is to provide a kind of reorder method of cache size of Unacknowledged Mode that disposes, can realize that Signaling Radio Bearer is mapped to high speed descending sharing channel and carries out data according to high-speed descending grouping access characteristic to send.
In order to achieve the above object, the present invention is a kind of to dispose the reorder method of cache size of Unacknowledged Mode, may further comprise the steps:
(1) terminal sends the Radio Resource control connection and sets up demand signalling to radio network controller;
(2) after radio network controller is received this signaling, judge this signaling whether clearly indication can use high-speed descending grouping access characteristic, if judged result is for being, then radio network controller is judged the total cache size parameter cell that carries affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS) in this signaling, enters step (3); If judged result is not, then process ends;
(3) high-speed descending grouping access characteristic is used in radio network controller decision, calculates the Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size parameter that reorders according to total cache size parameter cell of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS);
(4) radio network controller is set up this Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size parameter that reorders demand signalling by Radio Link and is sent to Node B.
As a further improvement on the present invention, described in the step (2) judge this signaling whether clearly indication can use the method for high-speed descending grouping access characteristic to be:
Whether (A) radio network controller is judged terminal capability cue mark cell in this signaling, if judged result is for being to enter step (B); If judged result enters step (C) for not;
(B) radio network controller judges whether the content of this terminal capability cue mark cell is to support high-speed descending grouping access characteristic, if judged result enters step (D) for being, if judged result enters step (C) for not;
(C) radio network controller judge this signaling clearly the indication can use high-speed descending grouping access characteristic, process ends;
(D) radio network controller is judged that this signaling has clearly been indicated and can be used high-speed descending grouping access characteristic.
As a further improvement on the present invention, calculating the reorder method of cache size parameter of Unacknowledged Mode high speed medium access control layer (MAC-HS) in the described step (3) is specially:
Residual value that radio network controller will obtain after will calculating by formula E-A-B-C and 1024 bytes are relatively, if this residual value is less than or equal to 1024 bytes, then this Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size that reorders is 1024 bytes, if this residual value is greater than 1024 bytes, this Unacknowledged Mode high speed medium access control layer (MAC-HS) multiple value of 1024 bytes that cache size rounds with 1024 byte step-lengths downwards for this residual value that reorders then;
Wherein, described A is the summation of the affirmation pattern signaling data largest buffered value of the current all categories that does not use high-speed descending grouping access characteristic; Described B is the summation of the affirmation mode business data largest buffered value of the current all categories that does not use high-speed descending grouping access characteristic; Described C is the affirmation mode high speed medium access control layer (MAC-HS) cache size that reorders; Described E is total cache size of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS).
As a further improvement on the present invention, calculating the reorder method of cache size parameter of Unacknowledged Mode high speed medium access control layer (MAC-HS) in the described step (3) is specially:
Radio network controller is preset M=N * K%, and the size of M and 1024 bytes relatively, if M is less than or equal to 1024 bytes, then this Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size that reorders is 1024 bytes; If M is greater than 1024 bytes, this Unacknowledged Mode high speed medium access control layer (MAC-HS) multiple value of 1024 bytes that cache size rounds with 1024 byte step-lengths downwards for this M value that reorders then;
Wherein, described N is total cache size of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS), described M is the default Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size that reorders, described K% for default greater than zero less than one constant.
As a further improvement on the present invention, also comprise after the described step (4):
(5) after Node B receives that Radio Link is set up request, set up Radio Link, and after this Radio Link is set up successfully, return to the radio network controller Radio Link and set up response according to the indication of radio network controller;
(6) Node B is used this Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size parameter that reorders, and controls the signaling data of the Unacknowledged Mode that uses high-speed descending grouping access characteristic and the downlink data amount of business datum.
As a further improvement on the present invention, described step (1) is specially:
(11) the terminal Radio Resource control connection that sends the total cache size parameter cell optionally carry affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS) is set up demand signalling to radio network controller.
As a further improvement on the present invention, the method for optionally carrying cell described in the step (1) is:
If clearly indicate in the signaling and can use high-speed descending grouping access characteristic, then carry total cache size parameter cell of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS) in this signaling; Otherwise this signaling is to carry or do not carry total cache size parameter cell of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS).
After adopting above-mentioned method, owing to set up total cache size parameter of carrying affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS) in the demand signalling by the Radio Resource control connection that sends in terminal, and calculate the Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size parameter that reorders according to this total cache size, can realize that Signaling Radio Bearer is mapped to high speed descending sharing channel and carries out data according to high-speed descending grouping access characteristic to send.
Description of drawings
Fig. 1 disposes the reorder flow chart of method of cache size of Unacknowledged Mode for the present invention.
Embodiment
The present invention carries Total RLC AM and MAC-hsbuffer size parameter information by terminal in " the Radio Resource control connection is set up request " signaling, and radio network controller is for the calculating of current signaling and business datum, obtain MAC-hsReordering Buffer Size for UM parameter occurrence, at last by " Radio Link is set up request " signaling Node B.Finish the layoutprocedure of MAC-hs Reordering Buffer Size for UM parameter with such implementation.
A kind of method that MAC-hs Reordering Buffer Size for UM parameter is tried to achieve in calculating is a radio network controller with the Total RLC AM and MAC-hs buffer size parameter information of this terminal is foundation, take all factors into consideration current signaling data configuration and current business datum configuration, calculate MAC-hs Reordering Buffer Size for UM parameter size, its concrete computational methods are as follows:
(1) summation of the affirmation pattern signaling data largest buffered value of the current all categories that does not use high-speed descending grouping access characteristic is designated as A.RLC (wireless chain control layer) window value that each class affirmation mode signaling data largest buffered value equals the configuration of such affirmation mode signaling data multiply by the value of taking advantage of of the RLC packet length of such affirmation mode signaling data configuration.
(2) summation of the affirmation mode business data largest buffered value of the current all categories that does not use high-speed descending grouping access characteristic is designated as B.RLC (wireless chain control layer) window value that each class affirmation mode business datum largest buffered value equals the configuration of such affirmation mode business datum multiply by the value of taking advantage of of the RLC packet length of such affirmation mode business datum configuration.
(3) MAC-hs Reordering Buffer Size for AM is designated as C.It is 70% of Total RLC AM and MAC-hsbuffer size.
(4) summation of A+B+C is designated as D.
(5) Total RLC AM and MAC-hs buffer size is designated as E.
(comprise that this residual value is the situation of negative) when (6) residual value after E deducts D is less than or equal to 1024Bytes (byte), MAC-hs Reordering Buffer Size for UM value is 1024Bytes; Residual value after E deducts D is during greater than 1024Bytes, the 1024Bytes multiple value that MAC-hs Reordering Buffer Size for UM value rounds with the 1024Bytes step-length downwards for this residual value.
Another method that MAC-hs Reordering Buffer Size for UM parameter is tried to achieve in calculating is a radio network controller with the Total RLC AM and MAC-hs buffer size parameter information of this terminal is foundation, the buffer memory of choosing the certain proportion size according to experience is used as MAC-hs Reordering Buffer Size for UM parameter size, and its concrete computational methods are as follows:
(11) according to experience, the buffer memory of K% scale of setting the Total RLC AM and MAC-hs buffer size of this terminal is used as MAC-hs Reordering Buffer Size for UM parameter size.K is greater than 0 and less than 100.
(12) Total RLC AM and MAC-hs buffer size*K%, this value of taking advantage of is designated as M
(13) if when M is less than or equal to 1024Bytes (byte), MAC-hs Reordering Buffer Size forUM value is 1024Bytes; If M is during greater than 1024Bytes, MAC-hs Reordering Buffer Size for UM value is the 1024Bytes multiple value that the M value rounds with the 1024Bytes step-length downwards.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, present embodiment provides a kind of collocation method of MAC-hs Reordering Buffer Size for UM parameter:
Step (110), terminal send " the Radio Resource control connection is set up request " signaling and give radio network controller, and the Radio Resource control connection is set up in application.In this signaling, terminal is clearly indicated " can use high-speed descending grouping access characteristic ", and carries Total RLC AM and MAC-hs buffer size parameter information.
Wherein, when " the Radio Resource control connection is set up request " signaling, " terminal capability indication " marker cell occurs, and " terminal capability indication " marker cell content then is judged as clearly indication " can use high-speed descending grouping access characteristic " for supporting high-speed descending grouping access characteristic; When " the Radio Resource control connection is set up request " signaling, " terminal capability indication " marker cell does not appear, then be judged as not clearly indication " can use high-speed descending grouping access characteristic "; When " the Radio Resource control connection is set up request " signaling, " terminal capability indication " marker cell appears, but the undeclared high-speed descending grouping access characteristic of whether supporting of " terminal capability indication " marker cell content then is judged as not clearly indication " can use high-speed descending grouping access characteristic ".
Step (120), high-speed descending grouping access characteristic is used in the radio network controller decision-making, radio network controller is preserved the Total RLC AM and MAC-hs buffer size parameter information of this terminal, and on this basis, take all factors into consideration current signaling data configuration and current business datum configuration, calculate MAC-hs Reordering Buffer Size for UM parameter size.Specific as follows:
A) summation of the affirmation pattern signaling data largest buffered value of the current all categories that does not use high-speed descending grouping access characteristic is 0, because current all data are all used high-speed descending grouping access characteristic;
B) summation of the affirmation mode business data largest buffered value of the current all categories that does not use high-speed descending grouping access characteristic is 0, because current all data are all used high-speed descending grouping access characteristic;
C) Total RLC AM and MAC-hs buffer size is 750*1024Bytes, MAC-hs ReorderingBuffer Size for 70%*750*1024Bytes that AM thinks;
D) MAC-hs Reordering Buffer Size for UM is calculated as 225*1024Bytes, because residual value just in time is the multiple of 1024Bytes, so need not to round.
Step (130), radio network controller will calculate MAC-hs Reordering Buffer Size for UM parameter, by " Radio Link is set up request " signaling Node B.
Step (140), Node B is set up Radio Link according to the indication of radio network controller; After the success, reply radio network controller with " Radio Link is set up response " signaling.
Step (150), Node B is used MAC-hs Reordering Buffer Size for UM parameter, the downlink data amount of the signaling data of the Unacknowledged Mode of control use high-speed descending grouping access characteristic and the business datum of Unacknowledged Mode, the situation that buffer area overflows when avoiding terminal to receive corresponding data takes place.
Wherein, in the above-mentioned steps (120) concrete computational methods be not only limited to a kind of.
The present invention adopts above-mentioned method can realize that Signaling Radio Bearer is mapped to high speed descending sharing channel and carries out the data transmission according to high-speed descending grouping access characteristic.
Claims (7)
1. one kind is disposed the reorder method of cache size of Unacknowledged Mode, it is characterized in that, may further comprise the steps:
(1) terminal sends the Radio Resource control connection and sets up demand signalling to radio network controller;
(2) after radio network controller is received this signaling, judge this signaling whether clearly indication can use high-speed descending grouping access characteristic, if judged result is for being, then radio network controller is judged the total cache size parameter cell that carries affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS) in this signaling, enters step (3); If judged result is not, then process ends;
(3) high-speed descending grouping access characteristic is used in radio network controller decision, calculates the Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size parameter that reorders according to total cache size parameter cell of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS);
(4) radio network controller is set up this Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size parameter that reorders demand signalling by Radio Link and is sent to Node B.
2. according to the reorder method of cache size of the described configuration Unacknowledged Mode of claim 1, it is characterized in that, described in the step (2) judge this signaling whether clearly indication can use the method for high-speed descending grouping access characteristic to be:
Whether (A) radio network controller is judged terminal capability cue mark cell in this signaling, if judged result is for being to enter step (B); If judged result enters step (C) for not;
(B) radio network controller judges whether the content of this terminal capability cue mark cell is to support high-speed descending grouping access characteristic, if judged result enters step (D) for being, if judged result enters step (C) for not;
(C) radio network controller judge this signaling clearly the indication can use high-speed descending grouping access characteristic, process ends;
(D) radio network controller is judged that this signaling has clearly been indicated and can be used high-speed descending grouping access characteristic.
3. according to the reorder method of cache size of the described configuration Unacknowledged Mode of claim 1, it is characterized in that, calculate the reorder method of cache size parameter of Unacknowledged Mode high speed medium access control layer (MAC-HS) in the described step (3) and be specially:
Residual value that radio network controller will obtain after will calculating by formula E-A-B-C and 1024 bytes are relatively, if this residual value is less than or equal to 1024 bytes, then this Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size that reorders is 1024 bytes, if this residual value is greater than 1024 bytes, this Unacknowledged Mode high speed medium access control layer (MAC-HS) multiple value of 1024 bytes that cache size rounds with 1024 byte step-lengths downwards for this residual value that reorders then;
Wherein, described A is the summation of the affirmation pattern signaling data largest buffered value of the current all categories that does not use high-speed descending grouping access characteristic; Described B is the summation of the affirmation mode business data largest buffered value of the current all categories that does not use high-speed descending grouping access characteristic; Described C is the affirmation mode high speed medium access control layer (MAC-HS) cache size that reorders; Described E is total cache size of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS).
4. according to the reorder method of cache size of the described configuration Unacknowledged Mode of claim 1, it is characterized in that, calculate the reorder method of cache size parameter of Unacknowledged Mode high speed medium access control layer (MAC-HS) in the described step (3) and be specially:
Radio network controller is preset M=N * K%, and the size of M and 1024 bytes relatively, if M is less than or equal to 1024 bytes, then this Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size that reorders is 1024 bytes; If M is greater than 1024 bytes, this Unacknowledged Mode high speed medium access control layer (MAC-HS) multiple value of 1024 bytes that cache size rounds with 1024 byte step-lengths downwards for this M value that reorders then;
Wherein, described N is total cache size of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS), described M is the default Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size that reorders, described K% for default greater than zero less than one constant.
5. according to the reorder method of cache size of the described configuration Unacknowledged Mode of claim 1, it is characterized in that described step also comprises after (4):
(5) after Node B receives that Radio Link is set up request, set up Radio Link, and after this Radio Link is set up successfully, return to the radio network controller Radio Link and set up response according to the indication of radio network controller;
(6) Node B is used this Unacknowledged Mode high speed medium access control layer (MAC-HS) cache size parameter that reorders, and controls the signaling data of the Unacknowledged Mode that uses high-speed descending grouping access characteristic and the downlink data amount of business datum.
6. according to the reorder method of cache size of the described configuration Unacknowledged Mode of claim 1, it is characterized in that described step (1) is specially:
(11) the terminal Radio Resource control connection that sends the total cache size parameter cell optionally carry affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS) is set up demand signalling to radio network controller.
7. according to the reorder method of cache size of the described configuration Unacknowledged Mode of claim 6, it is characterized in that the method for optionally carrying cell described in the step (11) is:
If clearly indicate in the signaling and can use high-speed descending grouping access characteristic, then carry total cache size parameter cell of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS) in this signaling; Otherwise this signaling is to carry or do not carry total cache size parameter cell of affirmation mode wireless chain control layer and high speed medium access control layer (MAC-HS).
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| CN101867972B (en) * | 2010-06-29 | 2012-12-12 | 中国科学院计算技术研究所 | Data transmission method in unacknowledged mode of wireless link control layer |
| EP2846495B1 (en) | 2012-05-30 | 2017-07-12 | Huawei Technologies Co., Ltd. | Multi-flow transmission scheduling method and device |
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