CN103139919A - Method and device for achieving single-step access - Google Patents
Method and device for achieving single-step access Download PDFInfo
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- CN103139919A CN103139919A CN2012100371182A CN201210037118A CN103139919A CN 103139919 A CN103139919 A CN 103139919A CN 2012100371182 A CN2012100371182 A CN 2012100371182A CN 201210037118 A CN201210037118 A CN 201210037118A CN 103139919 A CN103139919 A CN 103139919A
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Abstract
The invention discloses a method and a device for achieving single-step access. The method and the device comprise that two-way time delay of a link is calculated, whether the two-way time delay of the link is larger than the longest time interval permitted by a protocol or not is judged, when the two-way time delay of the link is larger than the longest time interval permitted by the protocol, transmitting block intervals of a descending block of an uplink state flag (USF) are confirmed, wherein the transmitting block intervals are sent to user equipment, the USF is used for setting the user equipment, and the transmitting block intervals are larger than the longest time interval permitted by the protocol of the two-way time delay of the link so that the confirmed transmitting block intervals transmit the descending block of the USF for setting the user equipment to the user equipment. When the two-way time delay of the link exceeds a limited time delay standard, the transmitting interval of the USF is adjusted so that the purpose that an ascending block can be distributed timely according to physical truth is ensured, the user equipment can not be released by force due to limiting conditions of the single-step access, and therefore the problem that access can not be conducted due to the fact that the time delay of the link is too long is solved.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and device of realizing step access.
Background technology
In GSM (global system for mobile communications), may there be multiple situation in the networking mode of Abis mouth, wherein, may adopt satellite link, the two-way time delay of the standard of common high rail satellite link is 520ms, add land link router, Digital Circuit Signal dynode system processing time and eat dishes without rice or wine to postpone etc., maximum delay may surpass more than 1100ms.Simultaneously under the real network environment, also exist BTS (base station transceiver) and arrive via satellite again the situation of BSC (base station controller) through satellite to the transfer router, the centre may need through satellite link repeatedly, the time delay of whole like this Abis link will increase greatly, but, for step access, long delay can cause Packet Service to carry out.
stipulate according to agreement, when mobile phone sends first RLC (Radio Link control)/MAC (media access control) radio block, the N3104 of subscriber equipment begins counting, radio block of the every transmission of subscriber equipment, N3104 increases once counting, in N3104_MAX (the counting maximum of N3104) number of times, if do not receive PACKET UPLINK ACK/NACK (packet uplink is replied), step conflict solves unsuccessfully, access failure, wherein, N3104_MAX=3* (BS_CV_MAX+3) * number of uplink timeslots assigned (the up channel number of distribution).
BS_CV_MAX is system configuration, the maximum of BS_CV_MAX is 15, for most of subscriber equipmenies, under step access, up channel of the general distribution of BSC, the maximum of N3104_MAX is 54 pieces, simultaneously, BSC is when receiving first radio block, the reply packet uplink is replied, when two-way delay is 54 pieces, 54 pieces are equivalent to 1080ms, be that subscriber equipment is when sending the 27th, BSC receives the 1st piece, beginning to issue packet uplink replys, packet uplink is replied through arriving subscriber equipment after the one way link delay of 27, subscriber equipment sends the 27+27=54 piece, reached N3104_MAX, if two-way delay is large again, step conflict solves and unsuccessfully will cause business to access.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and device of realizing a step access, during the maximum time interval that can allow greater than agreement in the two-way time delay of link, subscriber equipment is successfully accessed.
For solving the problems of the technologies described above, a kind of method that realizes step access of the present invention comprises:
Calculate the two-way time delay of link, judge the maximum time interval whether two-way time delay of described link allows greater than agreement, during the maximum time interval that allows greater than agreement in the two-way time delay of described link, determine to the transmission block gap of descending of the Uplink State Flag that this subscriber equipment is set (USF) of subscriber equipment transmission, wherein, the maximum time interval that described transmission block gap allows greater than the two-way time delay of link/agreement sends descending of USF that this subscriber equipment is set to described subscriber equipment with the transmission block gap of determining.
Further, the described transmission block gap of descending of determining the USF that this subscriber equipment is set that sends to subscriber equipment comprises:
The transmission block gap of determining descending of the USF that this subscriber equipment is set that sends to described subscriber equipment is all identical, and, greater than the maximum time interval that two-way time delay/agreement allows of described link.
Further, also comprise:
Determine that described transmission interblock is divided into the value of rounding up of the maximum time interval that the two-way time delay of link/agreement allows, at interval of individual descending of described value of rounding up, descending of USF of this subscriber equipment is set to one of described subscriber equipment transmission.
Further, the described transmission block gap of descending of determining the USF that this subscriber equipment is set that sends to subscriber equipment comprises:
Before determining, the individual transmission interblock of descending that the USF of described subscriber equipment is set of P (1＜P＜N3104 count maximum) is divided into default block gap, determines that the transmission block gap of after P described descending descending of the USF that described subscriber equipment is set is greater than (time that the default block gap * of the two-way time delay-P* of link is single)/(maximum time interval-P* that agreement allows presets the time of single of block gap *).
Further, also comprise:
After receiving first up that described subscriber equipment sends, send packet uplink to described subscriber equipment and reply, after sending described packet uplink and replying, send descending of USF that this subscriber equipment is set to described subscriber equipment with default block gap.
Further, also comprise:
After receiving the channel request message that described subscriber equipment sends, carries out the described two-way time delay that judges link whether greater than the maximum time interval of agreement permission.
Further, a kind of device of realizing step access comprises: link detecting module, judge module, block gap determination module and piece transceiver module, wherein:
Described link detecting module is for the two-way time delay of calculating link;
Described judge module is used for judging the maximum time interval whether two-way time delay of described link allows greater than agreement;
Described block gap determination module, during the maximum time interval that is used for allowing greater than described agreement in the two-way time delay of the described link of described judge module judgement, determine the transmission block gap of descending of the Uplink State Flag that this subscriber equipment is set (USF) that sends to subscriber equipment, described transmission block gap is greater than the maximum time interval that two-way time delay/agreement allows of link;
Described transceiver module, the transmission block gap that is used for determining with described block gap determination module send descending of USF that this subscriber equipment is set to described subscriber equipment.
Further, described block gap determination module concrete is used for determining that the transmission block gap of descending of the USF that this subscriber equipment is set that sends to described subscriber equipment is all identical, and, greater than the maximum time interval that two-way time delay/agreement allows of described link.
Further, described block gap determination module, concrete for determining that described transmission interblock is divided into the value of rounding up of the maximum time interval of the two-way time delay of link/agreement permission;
Described transceiver module, arranges descending of USF of this subscriber equipment at concrete being used at interval of described value of rounding up descending to one of described subscriber equipment transmission.
Further, described block gap determination module, concrete be used for determining before the individual transmission interblock of descending that the USF of described subscriber equipment is set of P (1＜P＜N3104 count maximum) be divided into default block gap, determine that the transmission block gap of after P described descending descending of the USF that described subscriber equipment is set is greater than (time that the default block gap * of the two-way time delay-P* of link is single)/(maximum time interval-P* that agreement allows presets the time of single of block gap *).
In sum, when the present invention has exceeded the standard of restriction time delay in the two-way time delay of link, adjust the transmission interval of USF, simultaneously, after terminal successfully accesses, cancel the constraint that this USF sends the interval, guarantee in time to distribute according to actual conditions up fast, subscriber equipment can not discharge by force because of the restrictive condition of a step access, thereby has solved the long problem that can't access of causing of the time delay of link.
Description of drawings
Fig. 1 is the flow chart of the method that realizes step access of embodiment of the present invention;
Fig. 2 is the Organization Chart of the device of realizing step access of embodiment of the present invention.
Embodiment
Present embodiment has proposed a kind of according to up resource of time delay distribution, avoids N3104 to reach peaked method.In conflict solution process, after BSC gets two-way time delay D, determine to arrange Uplink State Flag (Uplink State Flag, USF) the transmission block gap I of descending satisfies the maximum time interval that I＞D/ agreement allows, the maximum time interval that agreement allows is the maximum count value of N3104 and the product of the time of single, and Uplink State Flag is used for controlling a plurality of subscriber equipmenies use wireless channels under dynamic assignment mode.
Suppose that BSC first after on descending, USF being set, after subscriber equipment receives descending, sends first piece according to USF, when the D/2 time arrived, BSC replied packet uplink and replys, and after the time, packet uplink is replied and arrived BTS at D/2.sending first piece from subscriber equipment is D to receiving the time that packet uplink replys, during this period of time, the number of descending that BSC arranges USF is that D/ sends time corresponding to block gap I, in present embodiment, for avoiding to access because two-way time delay causes subscriber equipment, determine that D/ sends time＜N3104_MAX corresponding to block gap I, the transmission block gap I that namely determines USF satisfies the maximum time interval that I＞D/ agreement allows, send the block gap and refer to that BSC sends a descending of USF who carries this subscriber equipment every sending block gap descending to subscriber equipment.Can adopt the value of rounding up of the maximum time interval that the two-way time delay of link/agreement allows as sending the block gap in present embodiment, at interval of individual descending of the value of rounding up, descending of USF of this subscriber equipment is set to one of subscriber equipment transmission.
It is a kind of by distributing up resource to solve the method for the long step access failure that causes of Abis mouth time delay that present embodiment provides, here be not limited only to the Abis mouth, because subscriber equipment all can adopt the method for present embodiment to the long various situations that cause surpassing the maximum time interval that agreement allows of the time delay between BSC.
present embodiment can determine that the transmission block gap of descending of the USF that this subscriber equipment is set that sends to subscriber equipment is all identical, also can determine the individual transmission interblock of descending that the USF of subscriber equipment is set of front P (1＜P＜N3104 counts maximum) is divided into default block gap, namely, send a descending of USF that this subscriber equipment is set to subscriber equipment every default block gap descending, after sending descending of P the USF that this subscriber equipment is set, send descending of USF that this subscriber equipment is set according to following transmission block gap, namely, (time that the default block gap * of the two-way time delay-P* of link is single)/(time that the default block gap * of maximum time interval-P* that agreement allows is single).Minimum default block gap can be a piece, namely distributes to this subscriber equipment for each up.
Simultaneously, only just limit the setting of USF in conflict solution process, after accessing successfully, cancel this restriction, guarantee in time to distribute up according to actual conditions.
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.
The below illustrates with satellite link especially for the scene of the long delay of Abis mouth.But, as long as when the link duration between from the subscriber equipment to BSC satisfies the scene that present embodiment sets, equal methods of applicable present embodiment.
In existing GSM mobile communcations system, if subscriber equipment carries out step access, restriction due to the N3104 counter, if the Abis link surpasses the time of 54 (the maximum delay piece number of agreement regulation) individual RLC/MAC piece, the time of single is 20ms, namely surpass 54*20=1080ms (maximum time interval that agreement allows), subscriber equipment can't normally carry out Packet Service.Because, for the situation of satellite station, if a step access waits for that chain-circuit time delay is long, can't carry out, present embodiment adopt USF is set the transmission block gap all identical mode solve the problems of the prior art.
As shown in Figure 1, realize in the present embodiment the method for step access for satellite link, comprising:
Link detecting module in step S101:BSC detects the two-way time delay D of Abis mouth link in real time;
BSC records current block number on each descending, BTS records on up up number, records simultaneously the adjusted value of descending number, and BSC can number calculate according to the piece that receives number and the piece that sends the two-way time delay of link.
Step S102: subscriber equipment is to the BSC channel request message;
After step S103:BSC receives channel request message, judge whether the website at subscriber equipment place is the satellite website, if not, give tacit consent to GSM Packet Service handling process; If so, execution in step S104;
Step S104:BSC judges the whether step access of access way of subscriber equipment, if not, the GSM Packet Service handling process of giving tacit consent to; If so, execution in step S105;
Step S105:BSC judges the maximum time interval whether two-way time delay D of link allows greater than agreement, processes if two-way time delay D less than the maximum time interval that agreement allows, is proceeded default transport; If the maximum time interval that two-way time delay D allows greater than agreement, execution in step 106;
Step 106:BSC adjusts the transmission block gap I of USF;
Adjust transmission block gap I＞(maximum time interval that the D/ agreement allows) of USF.The value of rounding up of the maximum time interval that allows with the two-way time delay of link/agreement in present embodiment is as the transmission block gap.
Step S107:BSC sends the descending of first USF that this subscriber equipment is set to subscriber equipment, and is receiving before first up that subscriber equipment sends, and sends descending of USF that this subscriber equipment is set to subscriber equipment to send block gap I;
Step S108: after descending of subscriber equipment receives that BSC sends the first USF that this subscriber equipment is set, send first up to BSC;
Subscriber equipment sends D/2 after the descending of first USF that this subscriber equipment is set after the time at BSC, receive the descending of first USF that this subscriber equipment is set.
Step S109:BSC sends packet uplink to subscriber equipment and replys after receiving first up that subscriber equipment sends, and after sending packet uplink and replying, sends descending of USF that this subscriber equipment is set to subscriber equipment with default block gap.
The D/2 of BSC after subscriber equipment sends first up receives first up that subscriber equipment sends after the time.BSC was receiving before first up that subscriber equipment sends, and descending of USF of this subscriber equipment all is set to the subscriber equipment transmission to send block gap I.
BSC is after receiving first up that subscriber equipment sends, if subscriber equipment still has upstream data to need to send, BSC arranges the USF of this subscriber equipment immediately on descending build.
Figure 2 shows that the device of realizing step access of present embodiment, comprising: link detecting module, judge module, block gap determination module and piece transceiver module, wherein:
The link detecting module is for the two-way time delay of calculating link;
Whether judge module, the two-way time delay that is used for judge link be greater than the maximum time interval of agreement permission;
The block gap determination module, during the maximum time interval that is used for allowing greater than agreement in the two-way time delay of judge module judgement link, determine to the transmission block gap of descending of the Uplink State Flag that this subscriber equipment is set (USF) of subscriber equipment transmission, send the block gap greater than the maximum time interval that two-way time delay/agreement allows of link;
Piece transceiver module, the transmission block gap that is used for determining with the block gap determination module send descending of USF that this subscriber equipment is set to subscriber equipment.
The block gap determination module, concrete be used for determining that the transmission block gap of descending of the USF that this subscriber equipment is set that sends to subscriber equipment is all identical, and, greater than the maximum time interval that two-way time delay/agreement allows of link, be divided into the value of rounding up of the two-way time delay of link/maximum time interval that agreement allows as determining the transmission interblock.
The piece transceiver module, arranges descending of USF of this subscriber equipment at concrete being used at interval of the value of rounding up descending to one of subscriber equipment transmission.
The block gap determination module, can also determine that the individual transmission interblock of descending that the USF of described subscriber equipment is set of front P (1＜P＜N3104 counts maximum) is divided into default block gap, determine that the transmission block gap of after P is descending descending of the USF that subscriber equipment is set is greater than (time that the default block gap * of the two-way time delay-P* of link is single)/(time that the default block gap * of maximum time interval-P* that agreement allows is single).
obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, carried out by calculation element thereby they can be stored in storage device, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method that realizes step access, is characterized in that, comprising:
Calculate the two-way time delay of link, judge the maximum time interval whether two-way time delay of described link allows greater than agreement, during the maximum time interval that allows greater than agreement in the two-way time delay of described link, determine to the transmission block gap of descending of the Uplink State Flag that this subscriber equipment is set (USF) of subscriber equipment transmission, wherein, the maximum time interval that described transmission block gap allows greater than the two-way time delay of link/agreement sends descending of USF that this subscriber equipment is set to described subscriber equipment with the transmission block gap of determining.
2. the method for claim 1, is characterized in that, the described transmission block gap of descending of determining the USF that this subscriber equipment is set that sends to subscriber equipment comprises:
The transmission block gap of determining descending of the USF that this subscriber equipment is set that sends to described subscriber equipment is all identical, and, greater than the maximum time interval that two-way time delay/agreement allows of described link.
3. method as claimed in claim 2, is characterized in that, also comprises:
Determine that described transmission interblock is divided into the value of rounding up of the maximum time interval that the two-way time delay of link/agreement allows, at interval of individual descending of described value of rounding up, descending of USF of this subscriber equipment is set to one of described subscriber equipment transmission.
4. the method for claim 1, is characterized in that, the described transmission block gap of descending of determining the USF that this subscriber equipment is set that sends to subscriber equipment comprises:
Before determining, the individual transmission interblock of descending that the USF of described subscriber equipment is set of P (1＜P＜N3104 count maximum) is divided into default block gap, determines that the transmission block gap of after P described descending descending of the USF that described subscriber equipment is set is greater than (time that the default block gap * of the two-way time delay-P* of link is single)/(maximum time interval-P* that agreement allows presets the time of single of block gap *).
5. the method for claim 1, is characterized in that, also comprises:
After receiving first up that described subscriber equipment sends, send packet uplink to described subscriber equipment and reply, after sending described packet uplink and replying, send descending of USF that this subscriber equipment is set to described subscriber equipment with default block gap.
6. the method for claim 1, is characterized in that, also comprises:
After receiving the channel request message that described subscriber equipment sends, carries out the described two-way time delay that judges link whether greater than the maximum time interval of agreement permission.
7. a device of realizing step access, is characterized in that, comprising: link detecting module, judge module, block gap determination module and piece transceiver module, wherein:
Described link detecting module is for the two-way time delay of calculating link;
Described judge module is used for judging the maximum time interval whether two-way time delay of described link allows greater than agreement;
Described block gap determination module, during the maximum time interval that is used for allowing greater than described agreement in the two-way time delay of the described link of described judge module judgement, determine the transmission block gap of descending of the Uplink State Flag that this subscriber equipment is set (USF) that sends to subscriber equipment, described transmission block gap is greater than the maximum time interval that two-way time delay/agreement allows of link;
Described transceiver module, the transmission block gap that is used for determining with described block gap determination module send descending of USF that this subscriber equipment is set to described subscriber equipment.
8. device as claimed in claim 7 is characterized in that:
Described block gap determination module concrete is used for determining that the transmission block gap of descending of the USF that this subscriber equipment is set that sends to described subscriber equipment is all identical, and, greater than the maximum time interval that two-way time delay/agreement allows of described link.
9. device as claimed in claim 8 is characterized in that:
Described block gap determination module, concrete for determining that described transmission interblock is divided into the value of rounding up of the maximum time interval of the two-way time delay of link/agreement permission;
Described transceiver module, arranges descending of USF of this subscriber equipment at concrete being used at interval of described value of rounding up descending to one of described subscriber equipment transmission.
10. device as claimed in claim 7 is characterized in that:
Described block gap determination module, concrete be used for determining before the individual transmission interblock of descending that the USF of described subscriber equipment is set of P (1＜P＜N3104 count maximum) be divided into default block gap, determine that the transmission block gap of after P described descending descending of the USF that described subscriber equipment is set is greater than (time that the default block gap * of the two-way time delay-P* of link is single)/(maximum time interval-P* that agreement allows presets the time of single of block gap *).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210037118.2A CN103139919B (en) | 2011-11-22 | 2012-02-17 | A kind of method and device for realizing step access |
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| CN201110374412.8 | 2011-11-22 | ||
| CN201110374412 | 2011-11-22 | ||
| CN2011103744128 | 2011-11-22 | ||
| CN201210037118.2A CN103139919B (en) | 2011-11-22 | 2012-02-17 | A kind of method and device for realizing step access |
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| CN103139919A true CN103139919A (en) | 2013-06-05 |
| CN103139919B CN103139919B (en) | 2018-01-19 |
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| WO2022120830A1 (en) * | 2020-12-11 | 2022-06-16 | 北京小米移动软件有限公司 | Data transmission method and apparatus, and storage medium |
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| US20110085496A1 (en) * | 2007-09-25 | 2011-04-14 | Zte Corporation | Method for triggering a status report of automatic repeat request |
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