CN1984150B - Method for configuring Internet protocol compressed parameter - Google Patents
Method for configuring Internet protocol compressed parameter Download PDFInfo
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- CN1984150B CN1984150B CN2006100832249A CN200610083224A CN1984150B CN 1984150 B CN1984150 B CN 1984150B CN 2006100832249 A CN2006100832249 A CN 2006100832249A CN 200610083224 A CN200610083224 A CN 200610083224A CN 1984150 B CN1984150 B CN 1984150B
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Abstract
An IP header compression parameter's configuration method, relates to communication technology field. It resolves the defect that each RB supports IP header compression when UE can't support several RBs in existing technology. The invention firstly determines whether there is new RB access UE; If there is, RNC calculates IP header compression parameter, then transmits the stated parameter to UE, and has an initialization of RNC and UE; otherwise it finishes. The invention can realize IP header compression parameter's dynamic allocation. When UE has only one access of RB, UE header compression disposal capacity will all be allocated to this RB, so it can effectively use this UE header compression disposal capacity; when UE has several accesses of RB, it can allocate appropriate IP header compression parameter for each RB, makes all the RBs support header compression algorithm.
Description
Technical field
The present invention relates to communication technical field, especially relate to a kind of collocation method of internet protocol compressed parameter.
Background technology
UTRAN (Universal Terrestrial Radio Access Network, universal terrestrial access network) be wireless access mesh portions in the 3G (Third Generation) Moblie network, the wave point of this network comprises physical layer L1, data link layer L2 and network layer L3.L2 further comprises PDCP (Packet Data Convergence Protocol, PDCP), RLC (Radio Link Control, Radio Link control) and MAC sublayers such as (Medium AccessControl, Media Access Controlled).At WCDMA (Wideband Code DivisionMultiple Access, the Wideband Code Division Multiple Access (WCDMA) access) adopts based on IP (InternetProtocol in the system, Internet Protocol) header compression algorithm, this algorithm is set up corresponding TCP context and non-TCP context according to TCP (TransmissionControl Protocol, transmission control protocol) data flow and non-tcp traffic.And the major function of PDCP sublayer is exactly to finish the decompression of the head compression of IP packet.
RB (RADIO BEARER, radio bearer) is the service that transmits user data between UE (UserEquipment, subscriber equipment) and RNC (Radio Network Controller, radio network controller) that is provided by L2.Comprise compressed parameters such as MAX_HEADER, TCP_SPACE and NON_TCP_SPACE in RB, wherein MAX_HEADER is compressible maximum head length degree, and unit is a byte, and scope is 60～65535 bytes; TCP_SPACE is TCP context space, and scope is 3～15, and corresponding context identifier is 0～15; NON_TCP_SPACE is non-TCP context space, and scope is 3～15, and corresponding context identifier is 0～15.
When RB sets up, the head compression disposal ability T that RNC reports when inserting according to UE disposes MAX_HEADER, TCP_SPACE and the NON_TCP_SPACE parameter among the current RB, and wherein the value of head compression disposal ability T is 512 bytes or 1024 bytes or 2048 bytes or 4096 bytes or 8192 bytes.When being configured, the value of each parameter should meet the condition of following formula among the RB:
T≥(2×(TCP_SPACE+1+NON_TCP_SPACE+1)×MAX_HEADER)×RB_NUM
Wherein RB_NUM is the RB quantity that UE inserts.
At present, UE can support a plurality of RB, and when setting up first RB, not knowing whether also needs to set up new RB.For this kind situation, two kinds of processing methods are arranged now, a kind of is when setting up first RB, is this RB dispensing head compression parameters only; Another kind is when setting up first RB, is the follow-up RB reserved part head compression disposal ability of setting up possibly.
But, adopt when only be the method for first RB dispensing head compression parameters, set up new RB if desired, then because the head of subscriber equipment compresses a disposal ability has used when setting up first RB, cause the newly-built RB in back can't the retrieving head compression algorithm.When being adopted as the RB reserved part head compression method of processing capacity of follow-up foundation possibly, do not need to set up if having new RB, then cause the waste of head compression disposal ability.
Summary of the invention
The problem that will solve of the present invention provides a kind of collocation method of IP compressed parameter, with overcome UE in the prior art can not a plurality of RB situations of fine support under each RB all support the defective of IP head compression.
For achieving the above object, the invention provides a kind of collocation method of IP compressed parameter, may further comprise the steps:
A, judge whether that new RB inserts UE; If then change step B; Otherwise finish;
B, RNC revise TCP context space and non-TCP context space in the compressible maximum head length degree computing formula according to present wireless bearing quantity, calculate compressible maximum head length degree by described computing formula then, described compressible maximum head length degree computing formula is:
T≥(2×(TCP_SPACE+1+NON_TCP_SPACE+1)×MAX_HEADER)×RB_NUM，
Wherein, T is the head compression disposal ability of subscriber equipment, TCP_SPACE is transmission control protocol context space, NON_TCP_SPACE is non-transmission control protocol context space, MAX_HEADER is compressible maximum head length degree, RB_NUM is the radio bearer quantity that subscriber equipment inserts, and the minimum value of MAX_HEADER is 60;
C, send parameter to UE, and initialization of RNC and UE.
According to one aspect of the present invention, described parameter comprises transmission control protocol context space, non-transmission control protocol context space and compressible maximum head length degree.
According to another aspect of the present invention, step B further comprises:
B1, adjustment TCP context space and non-TCP context space;
B2, the compressible maximum head length degree of calculating.
According to another aspect of the present invention, the computing formula of the described compressible maximum head length degree of step B2 is:
T≥(2×(TCP_SPACE+1+NON_TCP_SPACE+1)×MAX_HEADER)×RB_NUM
Wherein, T is the head compression disposal ability of UE, and TCP_SPACE is TCP context space, NON_TCP_SPACE is non-TCP context space, MAX_HEADER is compressible maximum head length degree, and RB_NUM is the RB quantity that UE inserts, and the minimum value of MAX_HEADER is 60.
Compared with prior art, the present invention has the following advantages:
The present invention can realize the dynamic assignment of IP compressed parameter, and when UE only inserted a RB, the head compression disposal ability of UE was all distributed to this RB, so can effectively utilize the head compression disposal ability of this UE; And when UE inserts a plurality of RB, can be that each RB distributes suitable IP compressed parameter, make all RB can both the retrieving head compression algorithm.
Description of drawings
Fig. 1 is the configuration flow figure of a kind of IP compressed parameter of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:
The configuration flow of a kind of IP compressed parameter of the present invention as shown in Figure 1, when newly-built RB, RNC calculates the IP compressed parameter according to the RB quantity that current UE inserts, and sends this parameter to UE then, and initialization of RNC and UE relevant parameter.With reference to Fig. 1, the present invention includes following steps:
Step s101 judges whether that new RB inserts UE; If then change step s102; Otherwise finish.
Step s102 adjusts TCP context space and non-TCP context space.According to the demand of RB, adjust TCP context space and non-TCP context space.
Step s103 calculates compressible maximum head length degree.Utilize that formula T 〉=(2 * (TCP_SPACE+1+NON_TCP_SPACE+1) * MAX_HEADER) * RB_NUM calculates compressible maximum head length degree MAX_HEADER, and the minimum value of MAX_HEADER is 60.
Step s104 sends described parameter to UE, and initialization of RNC and UE, and the IP header compression algorithm is consistent.
The head compression disposal ability T that supposes UE is 4096 bytes, successively sets up two RB.When setting up first RB, there is new RB to insert UE through judgement, so adjust TCP context space and non-TCP context space.Suppose that TCP context space gets maximum 15, maximum 15 is also got in non-TCP context space, with the following formula T of T=4096, TCP_SPACE=15, NON_TCP_SPACE=15 and RB_NUM=1 substitution 〉=(2 * (TCP_SPACE+1+NON_TCP_SPACE+1) * MAX_HEADER) * RB_NUM, calculate MAX_HEADER, MAX_HEADER is 64 as calculated, meets its minimum value and be 60 condition.Therefore with TCP_SPACE be 15, NON_TCP_SPACE be 15 and MAX_HEADER 64 send UE to, and initialization of RNC and UE relevant parameter are finished the configuration of IP compressed parameter.
When setting up second RB, there is new RB to insert UE through judgement, so adjust TCP context space and non-TCP context space.The demand of supposing two RB is identical, so mean allocation TCP context space and non-TCP context space, getting TCP context space is 7, and non-TCP context space also is 7.With the following formula T of T=4096, TCP_SPACE=7, NON_TCP_SPACE=7 and RB_NUM=2 substitution 〉=(2 * (TCP_SPACE+1+NON_TCP_SPACE+1) * MAX_HEADER) * RB_NUM, calculate MAX_HEADER, MAX_HEADER is 64 as calculated, meets its minimum value and be 60 condition.Therefore with TCP_SPACE be 7, NON_TCP_SPACE be 7 and MAX_HEADER 64 send UE to, and initialization of RNC and UE finish the configuration of IP compressed parameter.
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 (3)
1. the collocation method of an internet protocol compressed parameter is characterized in that, may further comprise the steps:
A, judge whether that new radio bearer inserts subscriber equipment; If then change step B; Otherwise finish;
B, radio network controller revise TCP context space and non-TCP context space in the compressible maximum head length degree computing formula according to present wireless bearing quantity, calculate compressible maximum head length degree by described computing formula then, described compressible maximum head length degree computing formula is: T 〉=(2 * (TCP_SPACE+1+NON_TCP_SPACE+1) * MAX_HEADER) * RB_NUM
Wherein, T is the head compression disposal ability of subscriber equipment, TCP_SPACE is transmission control protocol context space, NON_TCP_SPACE is non-transmission control protocol context space, MAX_HEADER is compressible maximum head length degree, RB_NUM is the radio bearer quantity that subscriber equipment inserts, and the minimum value of MAX_HEADER is 60;
C, send parameter to subscriber equipment, and intiating radio network controller and subscriber equipment.
2. the collocation method of internet protocol compressed parameter according to claim 1 is characterized in that described parameter comprises transmission control protocol context space, non-transmission control protocol context space and compressible maximum head length degree.
3. as the collocation method of internet protocol compressed parameter as described in the claim 2, it is characterized in that step B further comprises:
B1, adjustment transmission control protocol context space and non-transmission control protocol context space;
B2, the compressible maximum head length degree of calculating.
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| CN2006100832249A CN1984150B (en) | 2006-05-31 | 2006-05-31 | Method for configuring Internet protocol compressed parameter |
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| CN2006100832249A CN1984150B (en) | 2006-05-31 | 2006-05-31 | Method for configuring Internet protocol compressed parameter |
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| CN1984150B true CN1984150B (en) | 2010-09-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101365158A (en) * | 2007-08-10 | 2009-02-11 | 华为技术有限公司 | Parameter negotiation, implementing method and system for header compression feedback |
| CN101860904B (en) * | 2009-04-07 | 2012-11-07 | 上海摩波彼克半导体有限公司 | Method for calculating checksums based on data packet IP (Internet Protocol) hearder compression technology |
Citations (3)
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| CN1246024A (en) * | 1998-07-20 | 2000-03-01 | 摩托罗拉公司 | Method for providing wireless communication by means of loading circuit in a radio communication system |
| CN1391757A (en) * | 1999-09-28 | 2003-01-15 | 艾利森电话股份有限公司 | Manipulating header fields for improved performance in packet communications |
| EP1507364A2 (en) * | 2003-07-30 | 2005-02-16 | Samsung Electronics Co., Ltd. | Apparatus and method for establishing header compression context according to channel type change in packet data service |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1246024A (en) * | 1998-07-20 | 2000-03-01 | 摩托罗拉公司 | Method for providing wireless communication by means of loading circuit in a radio communication system |
| CN1391757A (en) * | 1999-09-28 | 2003-01-15 | 艾利森电话股份有限公司 | Manipulating header fields for improved performance in packet communications |
| EP1507364A2 (en) * | 2003-07-30 | 2005-02-16 | Samsung Electronics Co., Ltd. | Apparatus and method for establishing header compression context according to channel type change in packet data service |
Non-Patent Citations (2)
| Title |
|---|
| Harri Holma, Antti Toskala.WCDMA技术与系统设计 1.机械工业出版社,2005,128-129. * |
| HarriHolma Antti Toskala.WCDMA技术与系统设计 1.机械工业出版社 |
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