CN101312374A - Method for acquiring system message in GPRS network - Google Patents
Method for acquiring system message in GPRS network Download PDFInfo
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- CN101312374A CN101312374A CNA2007100410294A CN200710041029A CN101312374A CN 101312374 A CN101312374 A CN 101312374A CN A2007100410294 A CNA2007100410294 A CN A2007100410294A CN 200710041029 A CN200710041029 A CN 200710041029A CN 101312374 A CN101312374 A CN 101312374A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method for obtaining system messages in a GPRS network. Under an IDLE mode, a marked value changed along with the change of a value of the broadcast channel information changing indication is arranged in a page message or a grouping page message or an idle message in the network, before time out of a timer which reads the system messages, a mobile station reads and judges whether the marked value received before and after starting is changed or not, if the marked value is changed, then stopping the timer, reading the system message, and performing corresponding actions based on the GPRS protocol standard, if the marked value is not changed, then restarting the timer. By indicating the system message to be changed in the page message or the grouping page message or the idle message, the method reduces the action that the mobile station reads the system message periodically, thereby enabling the mobile station to save power and obtain the change of the system message faster.
Description
Technical field
The invention belongs to GPRS (GPRS) mobile communication system technical field, obtain the method for system message in particularly a kind of GPRS network.
Background technology
System message in the GPRS network is divided into two kinds of situations: a kind of is that GPRS network exists packet broadcast channel (PBCCH) channel; Another is not have the PBCCH channel.When travelling carriage receives behind the system message Class1 3 (SI13) of broadcasting on broadcast channel (BCCH) channel, its further operation is by the decision of the content in the SI13 message:
1) if comprised description to the PBCCH channel among the SI13, there is PBCCH in current service cell so.Travelling carriage will obtain grouping system message on the PBCCH in appointment.
2) if do not comprise description to PBCCH among the SI13, then travelling carriage will get on to obtain system message at the BCCH channel.
In idle (IDLE) pattern and do not exist under the situation of PBCCH channel, travelling carriage wants every 30s initiatively attempt accepting SI13 one time on BCCH at least.After travelling carriage is received SI13, parameter-broadcast channel information that it will be supervised in this message changes the value (relevant information of BCCH_CHANGE_MARK of indicating (BCCH_CHANGE_MARK), please refer to 3GPPTS04.18 10.5.2.37b joint), and carry out the renewal of system message according to the variation of this value.
After broadcast on each BCCH of system changed, the value of BCCH_CHANGE_MARK just should increase by 1, and carried out mould 8 and calculate.Simultaneity factor message alteration sign (SI_CHANGE_FIELD) should be set to corresponding value (relevant information of SI_CHANGE_FIELD please refer to 3GPPTS04.18 10.5.2.37b joint), the content that changes recently in the expression BCCH information.Travelling carriage is according to the indication of SI_CHANGE_FIELD, and the corresponding system message of upgrading reads and decode.
In the IDLE pattern and exist under the situation of PBCCH channel, travelling carriage wants every 30s initiatively to attempt accepting a grouping system type of message 1 (PSI1) on PBCCH at least, after travelling carriage is received PSI1, parameter-packet broadcast channel information that it will be supervised in this message changes the value (relevant information of PBCCH_CHANGE_MARK of indicating (PBCCH_CHANGE_MARK), please refer to 3GPPTS04.60 11.2.18 joint), and carry out the renewal of grouping system message according to the variation of this value.
After broadcast on each PBCCH of system changed, the value of PBCCH_CHANGE_MARK just should increase by 1, and carried out mould 8 and calculate.Grouping system message alteration sign (PSI_CHANGE_FIELD) should be set to corresponding value (relevant information of PSI_CHANGE_FIELD please refer to 3GPPTS04.60 11.2.18 joint), the content that changes recently in the expression PBCCH information simultaneously.Travelling carriage is according to the indication of PSI_CHANGE_FIELD, and the corresponding grouping system message of upgrading reads and decode.
According to above-mentioned situation as can be known, under the IDLE pattern in GPRS network, even system message without any change, travelling carriage also needs frequent read system message, expends a large amount of electric power.Under the situation of system message alteration, also will wait for a period of time simultaneously, the worst situation is exactly the system message after wait just can acquire change in 30 seconds.
In the frequent read system message of travelling carriage, under the IDLE pattern in GPRS network, the travelling carriage place be required to corresponding paging group or all Common Control Channel (CCCH) all message on the Packet Common Control CHannel (PCCCH) accept, and decoding is to know whether network carries out paging to it.These message are included in CCCH and go up message such as a large amount of beep-page messages that send (Paging request type1 Paging request type2 Paging request type3), if and when having PCCCH, a large amount of packet paging informations (Packet Paging Request) that send and grouping downlink free time control messages message such as (Packet Downlink Dummy Control Block) on PCCCH.
Summary of the invention
The objective of the invention is to, a kind of method that obtains system message in GPRS network is provided, by Common Control Channel (CCCH) Packet Common Control CHannel (PCCCH) go up a large amount of beep-page message or idle message that send, notify the mobile station system message alteration, to reduce the behavior of read system message regularly under the travelling carriage IDLE pattern.
For reaching above-mentioned purpose, the present invention adopts following technical scheme:
A kind of method that in GPRS network, obtains system message,
Under the IDLE pattern, and when not having the PBCCH channel, network is provided with in beep-page message with broadcast channel information and changes the sign value that the variation of the value of indication changes, before the timer expiry that reads the system message that comprises broadcast channel information change indication, travelling carriage reads and judges that timer starts this sign value of receiving for twice front and back and whether changes:
If change, then stop timer, read system message is taked corresponding action according to GPRS protocol specification regulation then;
If do not change, then restart timer.
Wherein, described sign value is located in the filling field of beep-page message.
Wherein, the value of described sign value equates with the value that broadcast channel information changes indicated value.
Wherein, described beep-page message comprises beep-page message Class1, beep-page message type 2, beep-page message type 3.
Wherein, behind certain travelling carriage resident a certain sub-district first time, at first read the whole system messages on the BCCH, and the preservation broadcast channel information changes the value of indication in travelling carriage; Start to read and comprise that broadcast channel information changes the timer of the system message of indication; If before this timer expiry, when receiving the arbitrary beep-page message that comprises described sign value, then relatively should the sign value whether equate with value that broadcast channel information that travelling carriage is preserved changes indication:
If unequal, then stop timer, read system message 13 is taked corresponding action according to GPRS protocol specification regulation then; And the broadcast channel information of the preservation in the renewal travelling carriage changes the value of indication;
If equate, then restart timer.
Wherein, the value update mode that the broadcast channel information in the described travelling carriage changes indication is: the described sign value with current described beep-page message is upgraded, and perhaps reads once more to comprise that broadcast channel information changes the system message of indication, and upgrades with the value of correspondence.
Wherein, when the message content of described system message 13 changed, the value that broadcast channel information changes indication increased by 1.
The present invention also provides a kind of method that obtains system message in GPRS network,
Under the IDLE pattern, and when having the PBCCH channel, network is provided with in beep-page message or packet paging information or idle message with packet broadcast channel information and changes the sign value that the variation of the value of indication changes, before the timer expiry that reads the grouping system message that comprises packet broadcast channel information change indication, travelling carriage reads and judges that timer starts this sign value of receiving for twice front and back and whether changes:
If change, then stop timer, read grouping system message, take corresponding action according to GPRS protocol specification regulation then;
If do not change, then restart timer.
Wherein, described sign value is located in the filling field of beep-page message or packet paging information or idle message.
Wherein, the value of described sign value equates with the value that packet broadcast channel information changes indicated value.
Wherein, described idle message comprises the idle control messages of grouping downlink.
Wherein, described beep-page message comprises beep-page message Class1, beep-page message type 2, beep-page message type 3.
Wherein, behind certain travelling carriage resident a certain sub-district first time, at first read the whole system messages on the PBCCH, and preservation packet broadcast channel information changes the value of indication in travelling carriage; Start to read and comprise that packet broadcast channel information changes the timer of the grouping system message of indication; If before this timer expiry, when receiving arbitrary beep-page message that comprises described sign value or packet paging information or idle message, relatively should the sign value whether equate with value that packet broadcast channel information that travelling carriage is preserved changes indication:
If unequal, then stop timer, read grouping system message 1, take corresponding action according to GPRS protocol specification regulation then; And the packet broadcast channel information of the preservation in the renewal travelling carriage changes the value of indication;
If equate, then restart timer.
Wherein, the value update mode that packet broadcast channel information in the described travelling carriage changes indication is: the described sign value with current described beep-page message or packet paging information or idle message is upgraded, perhaps read the grouping system message that comprises packet broadcast channel information change indication once more, and upgrade with the value of correspondence.
Wherein, when the message content of described grouping system message 1 changed, the value that packet broadcast channel information changes indication increased by 1.
The present invention can significantly reduce travelling carriage read system message behavior regularly under the IDLE pattern, not only makes more power saving of travelling carriage, and can obtain the change of system message faster.Have favorable compatibility simultaneously, bring the problem of any compatibility can for travelling carriage or network.
Embodiment
Embodiment one
A kind of method that in GPRS network, obtains system message, under the IDLE pattern, and when not having the PBCCH channel, network is provided with the sign value of indicating the variation of the value of (BCCH_CHANGE_MARK) to change with the broadcast channel information change in beep-page message, suppose that regularly the timer of read system message Class1 3 (SI13) is T1 (maximum 30s), before timer T1 was overtime, travelling carriage read and judges whether this sign value that T1 starts in the beep-page message of receiving for twice front and back changes:
If change, then stop timer T1, read system message 13 is taked corresponding action according to GPRS protocol specification regulation then;
If do not change, then restart timer T1.
Wherein, described sign value is located in the filling field (padding bits) of beep-page message.
Wherein, the value of described sign value equates with the value that broadcast channel information changes indicated value.In the present embodiment promptly, when the content of system message Class1 3 (SI13) changed, the value of BCCH_CHANGE_MARK increased by 1, and the value of this sign value also increases by 1.
Wherein, described beep-page message comprises beep-page message Class1 (Paging request type1), beep-page message type 2 (Paging request type2), beep-page message type 3 (Paging request type3).In the scope that the beep-page message size allows, carry above-mentioned sign value as much as possible.The value of BCCH_CHANGE_MARK in the value that keeps this sign value simultaneously and the system message Class1 3 (SI13) equates.
Wherein, the beep-page message Class1 specifically can adopt the mode shown in the table one to revise:
| ＜P1 Rest Octets 〉: :=--beep-page message 1 remainder bytes L|H＜NLN (PCH): bit (2)〉＜NLN status:bit〉--notice tabulation number L|H＜Priority1::=Priority〉}--travelling carriage 1 priority L|H＜Priority2::=Priority〉}--travelling carriage 2 priority L|H＜Group Call information〉}--group calling is information＜Packet Page Indication 1:{L|H}〉--packet paging indication 1＜Packet Page Indication 2:{L|H}〉--packet paging indication 2 L|H＜BCCH_CHANGE_MARK:bit (3)〉＜PBCCH_CHANGE_MARK:bit (3)〉＜spare padding 〉;--broadcast channel information changes indication, packet broadcast channel information changes indication }-truncation allowed, the cell P1 Rest Octets among the amended Paging request of bits ' L ' the assumed type 1 |
Table one
Wherein, beep-page message type 2 specifically can adopt the mode shown in the table two to revise:
| ＜P2 Rest Octets 〉: :=--beep-page message 2 remainder bytes { L|H＜CN3:bit (2)〉}--travelling carriage 3 needs channel indication { L|H＜NLN:bit (2)〉＜NLN status:bit〉}--notice tabulation number L|H＜Priority1::=Priority〉}--travelling carriage 1 priority L|H＜Priority2::=Priority〉}--travelling carriage 2 priority L|H＜Priority3::=Priority〉}--travelling carriage 3 priority＜Packet Page Indication 3:{L|H}〉--packet paging indication 3 L|H＜BCCH_CHANGE_MARK:bit (3)〉＜PBCCH_CHANGE_MARK:bit (3)〉＜spare padding 〉;--broadcast channel information changes indication, packet broadcast channel information changes indication }--truncation allowed, the cell P2 Rest Octets among the amended Paging request of the bits ' L ' assumed type 2 |
Table two
Wherein, beep-page message type 3 specifically can adopt the mode shown in the table three to revise:
| ＜P3 Rest Octets 〉: :=--beep-page message 3 remainder bytes { L|H＜CN3:bit (2)〉＜CN4:bit (2)〉}--travelling carriage 3, travelling carriage 4 need channel indication { L|H＜NLN:bit (2)〉＜NLN status:bit〉}--notice tabulation number L|H＜Priority1::=Priority〉}--travelling carriage 1 priority L|H＜Priority2::=Priority〉}--travelling carriage 2 priority L|H＜Priority3::=Priority〉}--travelling carriage 3 priority L|H＜Priority4::=Priority〉}--travelling carriage 4 priority L|H＜BCCH_CHANGE_MARK:bit (3)〉＜PBCCH_CHANGE_MARK:bit (3)〉＜spare padding 〉;--broadcast channel information changes indication, and packet broadcast channel information changes the cell P3 Rest Octets among the amended Paging request type 3 of indication |
Table three
For further specifying embodiment one, the following specifically describes its process:
In GPRS network, sub-district A is arranged, do not have PBCCH, and the system message of broadcasting comprises on BCCH: SI1, SI2, SI2bis, SI3, SI4, SI13.Wherein, the BCCH_CHANGE_MARK of SI13 equals 0b000.
On CCCH, under the situation of needs or Radio Resource permission, send:
Paging?request?type1\Paging?request?type2\Paging?request?type3。
Behind certain travelling carriage persistent district A first time, whole system messages that can read on the BCCH comprise: SI1, SI2, SI2bis, SI3, SI4, SI13.And preserve BCCH_CHANGE_MARK and equal 0b000 in travelling carriage inside.
Start the timer T1 (maximum 30s) that regularly reads SI13 then.
1, in first 30s of travelling carriage T1:
Do not receive any Paging request type1 that comprises the sign value Paging request type2 Pagingrequest type3, then can adopt prior art to handle thereafter process.For example can adopt after T1 is overtime, travelling carriage reads SI13 once more, and compares with the respective value of oneself preserving, and does not find to change.So stop the acceptance of other system message, restart T1 then.
2, in second 30s of travelling carriage T1:
Travelling carriage has been received and has been comprised the Paging request type2 that the sign value is 0b000.Decoding back compares with own respective value of preserving, and discovery does not change, so stop and restarting T1.
3, in the 3rd 30s of travelling carriage T1:
Among the A of sub-district, because network side has changed the configuration of cell channel description (Cell Channel Description), so variation has also just taken place the SI1 content of sub-district A broadcasting, so the BCCH_CHANGE_MARK among the SI13 is changed to 0b001.Other system message is constant.
On CCCH, the sign value that comprises among the Paging request type1 Pagingrequest type2 Paging request type3 that sends under the situation of needs or Radio Resource permission equals 0b001 simultaneously.
Travelling carriage has been received and has been comprised the Paging request type1 that the sign value is 0b000.The decoding back compares with the respective value of oneself preserving, and finds that variation has taken place the value of BCCH_CHANGE_MARK.So stop T1 and read SI13, according to BCCH_CHANGE_MARK among the SI13 (0b001) SI_CHANGE_FIELD read SI1, preserving the BCCH_CHANGE_MARK (0b001) among the SI13 then, also can be directly to upgrade the BCCH_CHANGE_MARK that is stored in the travelling carriage with this sign value.Restart T1 then.
Embodiment two
A kind of method that in GPRS network, obtains system message, under the IDLE pattern, and when having the PBCCH channel, network is provided with the sign value of indicating the variation of the value of (PBCCH_CHANGE_MARK) to change with the change of packet broadcast channel information in beep-page message or packet paging information (Packet Paging Request) or idle message, suppose that it is T2 (maximum 30s) that the timer of grouping system type of message 1 (PSI1) is read in timing, before timer T2 was overtime, travelling carriage read and judges that T2 starts this sign value of receiving for twice front and back and whether changes:
If change, then stop timer T2, read grouping system message 1, take corresponding action according to GPRS protocol specification regulation then;
If do not change, then restart timer T2.
Wherein, described sign value is located in the filling field (padding bits) of beep-page message or packet paging information or idle message.
Wherein, the value of described sign value equates with the value that packet broadcast channel information changes the value of indication (PBCCH_CHANGE_MARK).In the present embodiment promptly, when the content of grouping system type of message 1 (PSI1) changed, the value of PBCCH_CHANGE_MARK increased by 1, and the value of this sign value also increases by 1.
Wherein, described beep-page message comprises beep-page message Class1 (Paging request type1), beep-page message type 2 (Paging request type2), beep-page message type 3 (Paging request type3).It can adopt the mode among the embodiment one to make amendment.
Wherein, described idle message comprises the idle control messages (Packet Downlink Dummy ControlBlock) of grouping downlink.
Wherein, packet paging information (Packet Paging Request) specifically can adopt the mode shown in the table four to revise:
| <packet Paging Request message content>: :=--packet paging information 3 contents<pAGE_MODE:bit (2)>--page-mode { 0|1<pERSISTENCE_LEVEL:bit (4)>* 4}--continues grade { 0|1<nLN:bit (2)>--notify list number { { 1＜Repeated Pageinfo:<repeated Page info struct>* * 0--paging information tabulation { 0|1<bCCH_CHANGE_MARK:bit (3)><pBCCH_CHANGE_MARK:bit (3)>--broadcast channel information changes indication, and packet broadcast channel information changes indication<padding bits>The truncation at end of message allowed of } //-, a bits ' O ' assumed!＜Distribution part error:bit (*)=<no string>; Amended Packet Paging Request |
Table four
Wherein, the idle control messages of grouping downlink (Packet Downlink Dummy Control Block) specifically can adopt the mode shown in the table five to revise:
| <packet Downlink Dummy Control Block message content>: :=--the idle control messages of grouping downlink<pAGE_MODE:bit (2)>--page-mode { 0|1<pERSISTENCE_LEVEL:bit (4)>* 4}--continues grade { 0|1<bCCH_CHANGE_MARK:bit (3)><pBCCH_CHANGE_MARK:bit (3)>}<padding bits>--broadcast channel information changes indication, and packet broadcast channel information changes indication!＜Distribution part error:bit (*)=<no string>; Amended Packet Downlink Dummy Control Block |
Table five
Similarly, for further specifying embodiment two, the following specifically describes its process:
In GPRS network, sub-district B is arranged, have PBCCH, and the system message of broadcasting comprises on BCCH: SI1, SI2, SI2bis, SI3, SI4, SI13.
The grouping system message of broadcasting on PBCCH comprises: PSI1, PSI2, PSI3, PSI3bis.Wherein the PBCCH_CHANGE_MARK of PSI1 equals 0b001.
CCCH on the PCCCH, under the situation that needs or Radio Resource allow, send Paging request type1 Pagingrequest type2 Paging request type3 Packet Paging Request Packet Downlink DummyControl Block, and comprise PBCCH_CHANGE_MARK and equal 0b001.
When certain travelling carriage for the first time behind persistent district B, can read BCCH whole system messages on the PBCCH comprise: SI1, SI2, SI2bis, SI3, SI4, SI13 and PSI1, PSI2, PSI3, PSI3bis.And preserve PBCCH_CHANGE_MARK and equal 0b001 in travelling carriage inside.Start then that regularly to read the PSI1 timer be T2 (maximum 30s).
1, at first 30s of travelling carriage T2 in second:
Do not receive any Paging request type1 that comprises the sign value Paging request type2 Pagingrequest type3 Packet Paging Request Packet Downlink Dummy Control Block, after T2 is overtime, travelling carriage reads PSI1, and compare with respective value that oneself is preserved, find to change.So stop the acceptance of other system message, restart T2 then.
2, at second 30s of travelling carriage T2 in second:
Travelling carriage has been received and has been comprised the Packet Paging Request that the sign value is 0b001.Decoding back compares with own respective value of preserving, and discovery does not change, so stop and restarting T2.
3, at the 3rd 30s of travelling carriage T2 in second:
Among the B of sub-district because the network check weighing newly disposed subdistrict frequency point distribution (Cell Allocation), so the PSI2 content of sub-district B broadcasting also just change, so the PBCCH_CHANGE_MARK among the PSI1 is changed to 0b002.Other system message and grouping system message are constant.
On CCCH PCCCH, the sign value that comprises among the Paging requesttype1 Paging request type2 Paging request type3 Packet Paging Request PacketDownlink Dummy Control Block that sends under the situation of needs or Radio Resource permission equals 0b002 simultaneously.
Travelling carriage has been received and has been comprised the Packet Paging Request that the sign value is 0b002.The decoding back compares with the respective value of oneself preserving, and finds that variation has taken place the value (0b002) of PBCCH_CHANGE_MARK.So stop T2 and read PSI1, according to PBCCH_CHANGE_MARK among the PSI1 (0b002) PSI_CHANGE_FIELD read PSI2, preserving the PBCCH_CHANGE_MARK (0b002) among the PSI1 then, also can be directly to upgrade the PBCCH_CHANGE_MARK that is stored in the travelling carriage with this sign value.Restart T2 then.
Claims (15)
1, a kind of method that obtains system message in GPRS network is characterized in that:
Under the IDLE pattern, and when not having the PBCCH channel, network is provided with in beep-page message with broadcast channel information and changes the sign value that the variation of the value of indication changes, before the timer expiry that reads the system message that comprises broadcast channel information change indication, travelling carriage reads and judges that timer starts this sign value of receiving for twice front and back and whether changes:
If change, then stop timer, read system message is taked corresponding action according to GPRS protocol specification regulation then;
If do not change, then restart timer.
2, the method that obtains system message in GPRS network according to claim 1, it is characterized in that: described sign value is located in the filling field of beep-page message.
3, the method that obtains system message in GPRS network according to claim 1 is characterized in that: the value of described sign value equates with the value that broadcast channel information changes indicated value.
4, the method that obtains system message in GPRS network according to claim 1, it is characterized in that: described beep-page message comprises beep-page message Class1, beep-page message type 2, beep-page message type 3.
5, the method that obtains system message in GPRS network according to claim 1 is characterized in that specifically may further comprise the steps:
Behind certain travelling carriage resident a certain sub-district first time, at first read the whole system messages on the BCCH, and the preservation broadcast channel information changes the value of indication in travelling carriage; Start to read and comprise that broadcast channel information changes the timer of the system message of indication; If before this timer expiry, when receiving the arbitrary beep-page message that comprises described sign value, then relatively should the sign value whether equate with value that broadcast channel information that travelling carriage is preserved changes indication:
If unequal, then stop timer, read system message 13 is taked corresponding action according to GPRS protocol specification regulation then; And the broadcast channel information of the preservation in the renewal travelling carriage changes the value of indication;
If equate, then restart timer.
6, the method that in GPRS network, obtains system message according to claim 5, it is characterized in that: the value update mode that the broadcast channel information in the described travelling carriage changes indication is: the described sign value with current described beep-page message is upgraded, perhaps read the system message that comprises broadcast channel information change indication once more, and upgrade with the value of correspondence.
7, the method that obtains system message in GPRS network according to claim 6, its feature exists: when the message content of described system message 13 changed, the value that broadcast channel information changes indication increased by 1.
8, a kind of method that obtains system message in GPRS network is characterized in that:
Under the IDLE pattern, and when having the PBCCH channel, network is provided with in beep-page message or packet paging information or idle message with packet broadcast channel information and changes the sign value that the variation of the value of indication changes, before the timer expiry that reads the grouping system message that comprises packet broadcast channel information change indication, travelling carriage reads and judges that timer starts this sign value of receiving for twice front and back and whether changes:
If change, then stop timer, read grouping system message, take corresponding action according to GPRS protocol specification regulation then;
If do not change, then restart timer.
9, the method that obtains system message in GPRS network according to claim 8, it is characterized in that: described sign value is located in the filling field of beep-page message or packet paging information or idle message.
10, the method that obtains system message in GPRS network according to claim 8 is characterized in that: the value of described sign value equates with the value that packet broadcast channel information changes indicated value.
11, the method that obtains system message in GPRS network according to claim 8 is characterized in that: described idle message comprises the idle control messages of grouping downlink.
12, the method that obtains system message in GPRS network according to claim 8, it is characterized in that: described beep-page message comprises beep-page message Class1, beep-page message type 2, beep-page message type 3.
13, the method that obtains system message in GPRS network according to claim 8 is characterized in that: specifically may further comprise the steps:
Behind certain travelling carriage resident a certain sub-district first time, at first read the whole system messages on the PBCCH, and preservation packet broadcast channel information changes the value of indication in travelling carriage; Start to read and comprise that packet broadcast channel information changes the timer of the grouping system message of indication; If before this timer expiry, when receiving arbitrary beep-page message that comprises described sign value or packet paging information or idle message, relatively should the sign value whether equate with value that packet broadcast channel information that travelling carriage is preserved changes indication:
If unequal, then stop timer, read grouping system message 1, take corresponding action according to GPRS protocol specification regulation then; And the packet broadcast channel information of the preservation in the renewal travelling carriage changes the value of indication;
If equate, then restart timer.
14, the method that in GPRS network, obtains system message according to claim 13, it is characterized in that: the value update mode that the packet broadcast channel information in the described travelling carriage changes indication is: the described sign value with current described beep-page message or packet paging information or idle message is upgraded, perhaps read the grouping system message that comprises packet broadcast channel information change indication once more, and upgrade with the value of correspondence.
15, the method that obtains system message in GPRS network according to claim 14, its feature exists: when the message content of described grouping system message 1 changed, the value that packet broadcast channel information changes indication increased by 1.
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| CN106576284A (en) * | 2014-08-21 | 2017-04-19 | 瑞典爱立信有限公司 | Network node and method for indicating to wireless device that system information (si) changed for purposes of system access procedure |
| CN111818617A (en) * | 2020-08-07 | 2020-10-23 | 上海创远仪器技术股份有限公司 | Method and device for realizing rapid searching of base station system information in LTE system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106576284A (en) * | 2014-08-21 | 2017-04-19 | 瑞典爱立信有限公司 | Network node and method for indicating to wireless device that system information (si) changed for purposes of system access procedure |
| CN111818617A (en) * | 2020-08-07 | 2020-10-23 | 上海创远仪器技术股份有限公司 | Method and device for realizing rapid searching of base station system information in LTE system |
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