CN101959211B - Method and device for obtaining system information - Google Patents
Method and device for obtaining system information Download PDFInfo
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- CN101959211B CN101959211B CN 200910089477 CN200910089477A CN101959211B CN 101959211 B CN101959211 B CN 101959211B CN 200910089477 CN200910089477 CN 200910089477 CN 200910089477 A CN200910089477 A CN 200910089477A CN 101959211 B CN101959211 B CN 101959211B
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- 238000000034 method Methods 0.000 title claims abstract description 28
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- 238000004891 communication Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 4
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Abstract
The invention discloses a method for obtaining system information, which is used for improving the success ratio of system information obtainment and reducing the influence on service transmission. The method comprises the following steps of: obtaining the system information by a base station; sending the system information to a terminal working on an auxiliary carrier frequency by the base station on the auxiliary carrier frequency; finding out the system information to be read by the terminal working on the auxiliary carrier frequency; and receiving the system information by the terminal on the auxiliary carrier frequency. The invention also discloses a device and a system for realizing the method.
Description
Technical field
The present invention relates to the communications field, particularly relate to the method and the device that obtain system information.
Background technology
Terminal in communication system need to read cell system information and obtain residential quarter access parameter and district common channel parameter, thereby carries out residential quarter access or the process such as resident.For the TD-SCDMA multi-carrier frequency cell, the carrier frequency in the residential quarter is divided into main carrier frequency and assistant carrier frequency two classes, and when system information was upgraded, only the Primary Common Control Physical Channel (PCCPCH) at main carrier frequency TS0 time slot carried out transmitting system information.
The state of terminal is divided into idle condition and connection status, and connection status can be divided into again CELL_DCH state, CELL_FACH state, CELL_PCH state and URA_PCH state.Wherein, under the CELL_DCH state, the terminal distribution dedicated channel is used for transfer of data, supports Dedicated Control Channel (DCCH)/logic channels such as Dedicated Traffic Channel (DTCH), is applicable to the business very high to requirement of real-time.Under the CELL_FACH state, the terminal distribution shared channel is used for transfer of data, does not allow DCCH/DTCH to occur at this state under the traditional approach, is only applicable to the transmission of small data quantity business.Under CELL_PCH and URA_PCH state, do not allow terminal to carry out the transmission of upstream data, only can paging receiving message.CELL_DCH and CELL_FACH state terminal allow to be operated in assistant carrier frequency and main carrier frequency in the existing protocol, and the terminal of other states only can be operated on the main carrier frequency.Because system information only sends at main carrier frequency, so the terminal of CELL_DCH and CELL_FACH state can't obtain at assistant carrier frequency the system information of renewal.
For addressing this problem, the terminal of CELL_DCH and CELL_FACH state need to jump to receiving system information on the main carrier frequency in the prior art.
The terminal of single crystal oscillator is finished to switch between frequency needs the regular hour.When if the terminal works of CELL_DCH and CELL_FACH state need to jump to main carrier frequency when the TS6 time slot, possibly can't in time receive the system information in next TS0 time slot.And when switching, frequency can stop current business transmission, so that terminal can not normally receive business.And after terminal jumped to main carrier frequency, what TS0 time slots were the uncertain terminal of network side need just can finish receiving system information, so do not know when can continue to the terminal transmission business, consequently affecting professional transmission can't normally carry out.
Summary of the invention
The embodiment of the invention provides a kind of method and device that obtains system information, is used for improving the success rate that obtains system information, and reduces the impact on the business transmission.
A kind of system information that obtains may further comprise the steps in the method that base station side realizes:
The base station obtains system information;
The base station sends to system information the terminal that is operated in assistant carrier frequency on assistant carrier frequency;
Wherein, the base station obtains system information when knowing that system information occurs to upgrade; Perhaps,
The base station transits to the CELL_FACH state in terminal from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, obtains system information.
A kind of system information that obtains may further comprise the steps in the method that end side realizes:
The terminal that is operated in assistant carrier frequency is known needs read system information;
Terminal is receiving system information on assistant carrier frequency;
Wherein, terminal receives the beep-page message that the base station sends at assistant carrier frequency, knows that system information upgrades, and needs read system information; Perhaps,
Terminal transits to the CELL_FACH state from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, needs read system information.
A kind of base station comprises:
Network Interface Module is used for obtaining system information;
Subscriber Interface Module SIM is used on assistant carrier frequency system information sent to the terminal that is operated in assistant carrier frequency;
Wherein, Network Interface Module is used for obtaining system information when knowing that system information occurs to upgrade; Perhaps,
Network Interface Module is used for transitting to the CELL_FACH state in terminal from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, obtains system information.
A kind of terminal comprises:
Interface module is used for receiving the business that the base station sends at assistant carrier frequency;
Trigger module is used for knowing needing read system information, and indication interface module receiving system information on assistant carrier frequency;
Wherein, trigger module is used for receiving the beep-page message that the base station sends at assistant carrier frequency, knows that system information upgrades, and needs read system information; Perhaps,
Trigger module is used for transitting to the CELL_FACH state from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, needs read system information.
A kind of communication system, it comprises:
The base station be used for to obtain system information, and system information is sent to the terminal that is operated in assistant carrier frequency on assistant carrier frequency;
Terminal is used for being operated in assistant carrier frequency, and knowing needs read system information, and on assistant carrier frequency receiving system information;
Wherein, the base station obtains system information when knowing that system information occurs to upgrade; Perhaps,
The base station transits to the CELL_FACH state in terminal from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, obtains system information.
In the embodiment of the invention base station on the assistant carrier frequency to the terminal transmitting system information that is operated on the assistant carrier frequency, terminal is receiving system information on assistant carrier frequency, do not need again frequency hopping to main carrier frequency, avoided TS6 to carrying out frequency inverted between the TS0 time slot the timely problem of receiving system information.Terminal in the receiving system information, can also continue to receive business on assistant carrier frequency, traffic affecting transmission.
Description of drawings
Fig. 1 is the structure chart of communication system in the embodiment of the invention;
Fig. 2 is the structure chart of base station in the embodiment of the invention;
Fig. 3 is the structure chart of terminal in the embodiment of the invention;
Fig. 4 is the method flow diagram that obtains system information in the embodiment of the invention in base station side;
Fig. 5 is the method flow diagram that obtains system information in the embodiment of the invention in end side;
Fig. 6 is the method flow diagram that obtains system information when system information occurs to upgrade in the embodiment of the invention;
Fig. 7 is the method flow diagram that obtains system information in the embodiment of the invention during SOT state of termination transition.
Embodiment
In the embodiment of the invention, the base station sends to system information the terminal that is operated in assistant carrier frequency on assistant carrier frequency, and the terminal receiving system information on assistant carrier frequency that is operated in assistant carrier frequency, then terminal does not need to jump to main carrier frequency and comes receiving system information, thereby improved the success rate that obtains system information, and terminal can continue to receive at assistant carrier frequency professional, i.e. not traffic affecting transmission of receiving system information.
Referring to Fig. 1, communication system comprises base station 101 and terminal 102 in the present embodiment.
Wherein, base station 101 comprises Network Interface Module 201 and Subscriber Interface Module SIM 202, referring to shown in Figure 2.
Subscriber Interface Module SIM 202 is used on assistant carrier frequency system information being sent to terminal.Subscriber Interface Module SIM 202 comprises: the first user interface sub-module is used for by sending the RRC dedicated signaling to terminal system information being sent to terminal with scheduling mode on assistant carrier frequency; Perhaps, the second user interface sub-module is used for by broadcast system information on assistant carrier frequency system information being sent to terminal.The second user interface sub-module sends to terminal by broadcast system information on the TS0 of assistant carrier frequency time slot with system information.
More than be the introduction to the function and structure of communication system, base station and terminal, introduce the implementation procedure that obtains system information below by method flow.
Referring to Fig. 4, as follows at the method flow of base station side acquisition system information in the present embodiment:
Step 401: the base station obtains system information.
Step 402: the base station sends to system information the terminal that is operated in assistant carrier frequency on assistant carrier frequency.
Referring to Fig. 5, as follows at the method flow of end side acquisition system information in the present embodiment:
Step 501: the terminal that is operated in assistant carrier frequency is known needs read system information.
Step 502: terminal is receiving system information on assistant carrier frequency.
The system information that the base station may will be upgraded when system information occur to be upgraded sends to terminal, also may be when knowing terminal generation transition between states system information to be sent to terminal.And the base station can send to terminal by the RRC dedicated signaling with system information with scheduling mode, also can system information be sent to terminal by broadcast signaling.Introduce in detail the implementation procedure that obtains system information below by two embodiment.
Referring to Fig. 6, the method flow that obtains system information when system information occurs to upgrade in the present embodiment is as follows:
Step 601: the system information that configuration device will upgrade by signaling sends to the base station.Concrete, configuration device sends to the base station by the system information that the Iub interface between radio network controller and the base station will upgrade.
Step 602: the base station knows that by the signaling that receives configuration device and send renewal has occured system information, and parses the system information of having upgraded from signaling.
Step 603: the base station comes the notification terminal system information to change to the beep-page message Class1 (PAGING TYPE1) that the terminal transmitting system information that is operated in assistant carrier frequency changes indication (SYSTEMINFORMATION CHANGE INDICATION) or comprises changing system information.
Step 604: the base station system information that broadcasting has been upgraded in the pre-configured channel on assistant carrier frequency.Pre-configured channel can be broadcast channel etc.For example: the base station can send the system information upgraded at the TS0 of assistant carrier frequency time slot, especially first and second code channel at the TS0 time slot sends, bearer update the form of broadcast signaling of system information can be identical with the form of broadcast signaling on the main carrier frequency.The base station also can be on other time slot of assistant carrier frequency transmitting system information.In execution in step 604, the base station can also send the system information of having upgraded in the broadcast channel of main carrier frequency.
Step 605: the terminal that is operated in assistant carrier frequency receives the system information of having upgraded in the pre-configured channel on assistant carrier frequency.At this moment, the terminal that is operated in assistant carrier frequency does not need frequency hopping to arrive main carrier frequency.
In the above flow process, also can omit step 603, the base station directly sends to the CELL_FACH terminal that is operated in assistant carrier frequency with scheduling mode by the system information that the RRC dedicated signaling will upgrade in step 604.
Referring to Fig. 7, the method flow that obtains system information in the present embodiment during SOT state of termination transition is as follows:
Step 701: terminal is carried out transition between states.Especially terminal will transit to the CELL_FACH state.
Step 702: the base station is by knowing alternately that with configuration device (such as radio network controller) transition between states has occured this terminal.Usually the transition of SOT state of termination all is accompanied by the change of residential quarter, so need to regain system information.
Step 703: the base station judges whether terminal is operated on the auxiliary carrier wave, if then continue step 704, otherwise continue step 705.
Step 704: the base station sends to this terminal by the RRC dedicated signaling with system information with scheduling mode on assistant carrier frequency.Perhaps base station broadcast system information on time slot pre-configured on the assistant carrier frequency and code channel, terminal receives the system information that the base station sends in corresponding time slot and code channel.
Step 705: system broadcast channel transmitting system information is passed through at main carrier frequency TS0 time slot in the base station.Terminal is in corresponding time slot receiving system information.
RRC dedicated signaling such as special measuring controlling message (MEASUREMENTCONTROL) etc. in the present embodiment are by expanding carrying system information to special measuring controlling message.The form of the special measuring controlling message after the expansion is as shown in table 1:
Table 1
| Information Element/Group name (information word/group name) | Need (existence) | Mult i (value quantity) | Type and reference (type and relation) | Semantics description (semantic description) | Versio n (version) |
| Message Type (type of message) | MP (essential) | Message Type | |||
| UE information elements (user equipment information unit) | |||||
| RRC transaction identifier (radio resource controller transmission sign) | MP | RRC transaction identifier 10.3.3.36 | |||
| Integrity check info (integrity check info) | CH (occurring according to historical information) | Integrity check info 10.3.3.16 | |||
| Measurement Information elements (metrical information unit) | |||||
| Measurement Identity (measurement characteristics) | MP | Measurem ent Identity 10.3.7.48 | If comprise system information, then this IE ignores | ||
| Part is omitted | If comprise system information, then this IE ignores | ||||
| Physical channel information elements (physic channel information unit) |
[0064]
| DPCH compressedmode status info (DPCH compress mode state information) | OP (optional) | DPCH compresse dmode status info 10.3.6.34 | If comprise system information, then this IE ignores | ||
| System informationelements (system information unit) | OP | Increase information newly | |||
| ＞System InformationBlock type 1 (system information block 1) | OP | ||||
| ＞SystemInformation Blocktype 2 | OP | ||||
| Part is omitted | |||||
| ＞SystemInformation Blocktype 20 | OP |
Can only carry the system information of renewal in the special measuring controlling message, perhaps carry all required system informations.When special measuring controlling message carrying system information, can ignore the information word irrelevant with system information.
Be used for realizing that the software of the embodiment of the invention can be stored in the storage mediums such as floppy disk, hard disk, CD and flash memory.
In the embodiment of the invention base station on the assistant carrier frequency to the terminal transmitting system information that is operated on the assistant carrier frequency, terminal is receiving system information on assistant carrier frequency, do not need again frequency hopping to main carrier frequency, avoided TS6 to carrying out frequency inverted between the TS0 time slot the timely problem of receiving system information.Terminal in the receiving system information, can also continue to receive business on assistant carrier frequency, traffic affecting transmission.The base station can send to terminal with system information with scheduling mode in the embodiment of the invention, also can system information be sent to terminal by broadcast mode, and multiple realization means can be applied in a flexible way.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1. the method in base station side acquisition system information is characterized in that, may further comprise the steps:
The base station obtains system information;
The base station sends to system information the terminal that is operated in assistant carrier frequency on assistant carrier frequency;
Wherein, the base station obtains system information when knowing that system information occurs to upgrade; Perhaps,
The base station transits to the CELL_FACH state in terminal from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, obtains system information.
2. the method for claim 1 is characterized in that, the base station comprises in the step that on the assistant carrier frequency system information is sent to terminal: the base station sends to terminal by sending the RRC dedicated signaling to terminal with system information on assistant carrier frequency.
3. the method for claim 1 is characterized in that, the base station comprises in the step that on the assistant carrier frequency system information is sent to terminal: the base station sends to terminal by broadcast system information on assistant carrier frequency with system information.
4. method as claimed in claim 3, it is characterized in that the base station comprises by the step that system information is sent to terminal at broadcast system information on the assistant carrier frequency: the base station sends to terminal by broadcast system information on the TS0 of assistant carrier frequency time slot with system information.
5. the method for claim 1 is characterized in that, described terminal is the terminal that is in the CELL_FACH state.
6. the method in end side acquisition system information is characterized in that, may further comprise the steps:
The terminal that is operated in assistant carrier frequency is known needs read system information;
Terminal is receiving system information on assistant carrier frequency;
Wherein, terminal receives the beep-page message that the base station sends at assistant carrier frequency, knows that system information upgrades, and needs read system information; Perhaps,
Terminal transits to the CELL_FACH state from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, needs read system information.
7. a base station is characterized in that, comprising:
Network Interface Module is used for obtaining system information;
Subscriber Interface Module SIM is used on assistant carrier frequency system information sent to the terminal that is operated in assistant carrier frequency;
Wherein, Network Interface Module is used for obtaining system information when knowing that system information occurs to upgrade; Perhaps,
Network Interface Module is used for transitting to the CELL_FACH state in terminal from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, obtains system information.
8. base station as claimed in claim 7 is characterized in that, Subscriber Interface Module SIM comprises:
The first user interface sub-module is used for by sending the RRC dedicated signaling to terminal system information being sent to terminal with scheduling mode on assistant carrier frequency; Perhaps
The second user interface sub-module is used for by broadcast system information on assistant carrier frequency system information being sent to terminal.
9. base station as claimed in claim 8 is characterized in that, the second user interface sub-module sends to terminal by broadcast system information on the TS0 of assistant carrier frequency time slot with system information.
10. a terminal is characterized in that, comprising:
Interface module is used for receiving the business that the base station sends at assistant carrier frequency;
Trigger module is used for knowing needing read system information, and indication interface module receiving system information on assistant carrier frequency;
Wherein, trigger module is used for receiving the beep-page message that the base station sends at assistant carrier frequency, knows that system information upgrades, and needs read system information; Perhaps,
Trigger module is used for transitting to the CELL_FACH state from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, needs read system information.
11. a communication system is characterized in that, comprising:
The base station be used for to obtain system information, and system information is sent to the terminal that is operated in assistant carrier frequency on assistant carrier frequency;
Terminal is used for being operated in assistant carrier frequency, and knowing needs read system information, and on assistant carrier frequency receiving system information;
Wherein, the base station obtains system information when knowing that system information occurs to upgrade; Perhaps,
The base station transits to the CELL_FACH state in terminal from idle condition, perhaps from CELL_DCH transition between states to the CELL_FACH state, during perhaps from CELL_DCH transition between states to the CELL_PCH state, obtains system information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910089477 CN101959211B (en) | 2009-07-20 | 2009-07-20 | Method and device for obtaining system information |
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| CN 200910089477 CN101959211B (en) | 2009-07-20 | 2009-07-20 | Method and device for obtaining system information |
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| CN101959211A CN101959211A (en) | 2011-01-26 |
| CN101959211B true CN101959211B (en) | 2013-01-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651890B (en) * | 2011-02-24 | 2015-03-25 | 电信科学技术研究院 | Method and device for transmitting system information |
| CN102223690A (en) * | 2011-06-17 | 2011-10-19 | 电信科学技术研究院 | Methods for transmitting system information and devices |
| PL3419331T3 (en) * | 2016-05-12 | 2020-12-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | System information transmission method, base station, and terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917409A (en) * | 2005-08-18 | 2007-02-21 | 上海原动力通信科技有限公司 | Method for extending channel of shared data in HSDPA communication system in multiple frequency points |
| CN101115281A (en) * | 2006-04-30 | 2008-01-30 | 华为技术有限公司 | System control message transmitting, receiving method and apparatus |
| CN101370245A (en) * | 2007-08-13 | 2009-02-18 | 大唐移动通信设备有限公司 | Ascending reinforced accidental access method, apparatus and equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917409A (en) * | 2005-08-18 | 2007-02-21 | 上海原动力通信科技有限公司 | Method for extending channel of shared data in HSDPA communication system in multiple frequency points |
| CN101115281A (en) * | 2006-04-30 | 2008-01-30 | 华为技术有限公司 | System control message transmitting, receiving method and apparatus |
| CN101370245A (en) * | 2007-08-13 | 2009-02-18 | 大唐移动通信设备有限公司 | Ascending reinforced accidental access method, apparatus and equipment |
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