CN101115288A - Method and system for indicating system broadcast message variation - Google Patents
Method and system for indicating system broadcast message variation Download PDFInfo
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- CN101115288A CN101115288A CNA2006100995369A CN200610099536A CN101115288A CN 101115288 A CN101115288 A CN 101115288A CN A2006100995369 A CNA2006100995369 A CN A2006100995369A CN 200610099536 A CN200610099536 A CN 200610099536A CN 101115288 A CN101115288 A CN 101115288A
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Abstract
The invention discloses a method of indicating the change of the system broadcast information, comprising: the changing information of the system broadcast information is arranged in a calling indicating frame by a net equipment, and the calling indicating frame is sent to the user equipment. The invention also discloses a method of receiving the system broadcast information, comprising: the user equipment receives the calling indicating frame, and the calling indicating frame comprises the changing information of the system broadcast information, and reads the system broadcast information according to the changing information of the system broadcast information. The invention also discloses a system indicating the changing information of the system broadcast information. According to the invention, as the main information block value label and the changing time of the system broadcast information are arranged in the calling indicating frame, the user equipment can beforehand read the main information label, and thus beforehand deciding whether to read the system broadcast information, decreasing the time delay of reading the system broadcast information; in addition, the calling information length can also be decreased, and the system efficiency is improved.
Description
Technical field
The present invention relates to a kind of communication technology, relate in particular to a kind of method and system of indicating system broadcast message variation.
Background technology
After the subscriber equipment start, carry out cell search process, finally enter into idle pulley, but the system message of subscriber equipment paging receiving message and Web broadcast at this moment so that with network or other communications of user equipment.The system message of Web broadcast was broadcasted with the fixed cycle, so that subscriber equipment receives these system messages in time, thereby in time these message was responded.Yet, because these message all are identical in the overwhelming majority time, therefore, subscriber equipment is not to understand all system messages in each cycle, but when system message changed, network was understood system message with the mode notifying user equipment of paging, like this, just reduce the time that subscriber equipment repeats to understand system message, improved the efficient of system.
In the prior art, for the subscriber equipment that is under idle condition and URA_PCH, the CELL_PCH state,, come notifying user equipment by issue a beep-page message (beep-page message Class1) in paging channel if change has taken place system message.For being in CELL_DCH under the tdd mode and the UE under the CELL_FACH state, be to notify UE by on Dedicated Control Channel, issuing SYSTEMINFORMATION CHANGE INDICATION (system information changes indication) message.
Under idle pulley, when subscriber equipment should receive one's own beep-page message if will calculating according to certain algorithm, so that improve the utilization ratio of paging block, concrete grammar is as follows: each paging channel all has a Page Indication Channel to match use with it, subscriber equipment under the idle condition goes out paging occasion (paging occasion) according to certain algorithm computation, Page Indication Channel is carried out discontinuous reception (DRX reception), monitor the paging indication (paging indication) in the paging occasion.If the information that monitors one's own paging indication in paging occasion is " follow-up have beep-page message ", so then by calculating paging message receiving occasion (Paging Message Receiving Occasion), paging receiving message (Paging Control Channel is mapped to the auxiliary publish control physical channel of physical layer) to the auxiliary publish control physical channel of bearing call message.
The calculating of paging occasion:
Paging Occasion＝{(IMSI div K)mod(DRX cycle length div PBP)}*PBP+n
*DRX cycle length+Frame Offset
The calculating of paging message receiving occasion:
Paging Message Receiving Occasion＝Paging Occasion+N
PICH+N
GAP+{(DRXIndex mod Np)mod N
PCH}*2
Wherein:
IMSI is an international mobile subscriber identification code; K is the number of the auxiliary publish control physical channel (SCCPCH) of available bearing call channel (PCH); DRX cycle length is discontinuous receiving cycle; PBP is a paging block periodicity, for FDD, and PBP=1; Frame Offset is vertical shift, and for FDD, vertical shift is 0, and for TDD, frame offset value is specified in system message; N
PICHBe the frame number of bearing call indication frame, equal the repeat length of calling indicating frame; N
GAPIt is the frame number between the frame of the frame of last bearing call indication of certain paging occasion and first bearing call message; DRX Index is discontinuous reception index, and its value is (IMSI div 8192); For FDD, Np is the number of a paging indication in the frame, and for TDD, Np is the number of a paging indication in the paging block; N
PCHNumber for paging group.N
PICH, N
p, N
PCHAll in system message, issue.
A cell system broadcast message variation information (BCCHmodification info) is arranged in paging Class1 message, it includes Master Information Block value label (MIB value tag) and system broadcast message and changes the time (BCCH modification time), i.e. the System Frame Number that changes of system broadcast message.
Change the information cell if contain system broadcast message in this paging Class1 message, subscriber equipment need judge whether the Master Information Block value label in this cell is identical with the Master Information Block value label of oneself preserving (being stored among the variable V ALUE TAG in the subscriber equipment) so, if different, then go broadcast channel reading system broadcast.Change the time (System Frame Number of system broadcast message just) if comprise system broadcast message in the beep-page message, subscriber equipment can begin from the system broadcast message of this frame number to read so.
As shown in Figure 1, in above-mentioned indicating system broadcast message change procedure, have a time delay between paging indication that receives from Page Indication Channel and the beep-page message that receives from auxiliary publish control physical channel.That is to say, when subscriber equipment is detecting one's own paging indication on the Page Indication Channel after, t that need be after calling indicating frame
PICHCould on auxiliary publish control physical channel, receive this beep-page message behind the chips, wherein, t
PICH=N
PICH+ N
GAP+ { (DRX Index mod Np) mod N
PCH* 2.And to after paging receiving message, could understand the situation that system broadcast message changes.That is, subscriber equipment detects between beep-page message indication and the paging receiving message and has certain time delay.
Summary of the invention
The method and system that the purpose of this invention is to provide a kind of indicating system broadcast message variation, can eliminate or reduce and detect the time delay that exists between beep-page message indication and the receiving system broadcast, thereby reduced the time of triggering subscriber equipment reading system broadcast, improved the efficient of system.
The invention discloses a kind of method of indicating system broadcast message variation, comprising: the network equipment changes information setting in the frame that is carrying the paging indication with system broadcast message, and calling indicating frame is issued subscriber equipment.
Described system broadcast message change information comprises: Master Information Block value label.
Described system broadcast message changes information and also comprises: system broadcast message changes the time and/or system broadcast message changes the time indicating bit.
The invention also discloses a kind of method of receiving system broadcast, comprising:
Subscriber equipment is monitored calling indicating frame, and described calling indicating frame comprises that system broadcast message changes information, and changes information reading system broadcast according to system broadcast message.
Describedly change information reading system broadcast according to system broadcast message and specifically comprise: if detect paging indication this subscriber equipment, the Master Information Block value label of storing in Master Information Block value label in the system broadcast message change information and the subscriber equipment is compared, if inequality, then subscriber equipment goes reading system broadcast on the Broadcast Control Channel.
Described method also comprises: when also existing system broadcast message to change the time in the system broadcast message change information, subscriber equipment goes on the Broadcast Control Channel to begin the reading system broadcast from the system broadcast message change time.
The invention also discloses a kind of system of indicating system broadcast message variation, described system comprises:
The network equipment is used to generate calling indicating frame, and sends calling indicating frame to subscriber equipment, comprises in the described calling indicating frame that system broadcast message changes information;
Subscriber equipment is used for obtaining system broadcast message from calling indicating frame and changes information, and changes the information receiving system broadcast according to system broadcast message.
The described network equipment comprises:
The unit is set, is used for system broadcast message is changed information setting in calling indicating frame, and start transmitting element;
Transmitting element is used for the calling indicating frame that has system broadcast message change information is issued subscriber equipment.
Described subscriber equipment comprises:
Receiving element is used for paging receiving indication frame, and described calling indicating frame comprises that system broadcast message changes information;
The system broadcast message acquiring unit is used for changing the information receiving system broadcast according to the system broadcast message of calling indicating frame.
Described system broadcast message acquiring unit comprises:
The message parse unit is used to resolve calling indicating frame, obtains the Master Information Block value label in the system broadcast message change information from calling indicating frame;
Judging unit is used to judge whether described Master Information Block value label is identical with the local Master Information Block value label of preserving, if inequality, then starts reading unit;
Reading unit is used to reading system broadcast message on the Broadcast Control Channel.
The invention also discloses a kind of network equipment, comprising:
The unit is set, is used for system broadcast message is changed information setting in calling indicating frame, and start transmitting element; Transmitting element is used for the calling indicating frame that has system broadcast message change information is issued subscriber equipment.
The invention also discloses a kind of subscriber equipment, comprising:
Receiving element is used for paging receiving indication frame, and described calling indicating frame comprises that system broadcast message changes information;
The system broadcast message acquiring unit is used for changing the information receiving system broadcast according to the system broadcast message of calling indicating frame.
Described system broadcast message acquiring unit comprises:
The message parse unit is used to resolve calling indicating frame, obtains the Master Information Block value label in the system broadcast message change information from calling indicating frame;
Judging unit is used to judge whether described Master Information Block value label is identical with the local Master Information Block value label of preserving, if inequality, then starts reading unit;
Reading unit is used to reading system broadcast message on the Broadcast Control Channel.
According to the present invention, because Master Information Block value label and system broadcast message change time are arranged in the calling indicating frame, therefore, subscriber equipment has been read this Master Information Block value label in advance, can determine whether to go the reading system broadcast in advance, detect the time delay that paging is indicated to the reading system broadcast thereby reduced subscriber equipment; In addition, the system broadcast message that also can omit in the beep-page message changes the information cell, thereby can reduce calling information length, improves the efficient of system.
Description of drawings
Fig. 1 shows in the prior art time delay schematic diagram between the auxiliary publish control physical channel frame of calling indicating frame that receives from Page Indication Channel and the bearing call message that receives from Paging Control Channel;
Fig. 2 shows the structure of calling indicating frame in the WCDMA system;
Fig. 3 shows the flow chart of indicating system broadcast message variation of the present invention;
Fig. 4 shows the flow chart of receiving system broadcast of the present invention;
Fig. 5 shows the system schematic of delivery system broadcast of the present invention.
Embodiment
Understand and realization the present invention the existing embodiments of the invention of describing in conjunction with the accompanying drawings for the ease of persons skilled in the art.
Basic thought of the present invention is, system broadcast message is changed information setting in calling indicating frame, like this, after subscriber equipment receives calling indicating frame, just can obtain system broadcast message and change information, and needn't wait for beep-page message again, so that the system broadcast message in the reading gating message changes information, detect the time delay that paging is indicated to the reading system broadcast thereby reduced subscriber equipment.On the other hand, the system broadcast message that can omit beep-page message changes the information cell, can reduce calling information length, thereby reduces the load of eating dishes without rice or wine to transmit.
For the ease of understanding the present invention, be that example is described in the method that system broadcast message change information cell is set in the calling indicating frame at first with WCDMA (Wideband Code Division Multiple Access (WCDMA) access) system.
Table 1 and table 2 show system broadcast message and change the information cell structure.
Table 1
| Cell/group name claims (Information Element/Group name) | Option (Need) | Multi | Type and reference (Type and reference) | Semantic description (Semantics description) |
| Master Information Block value label (MIB Value tag) | Essential (MP) | Table 2 | ||
| System broadcast message changes the time (BCCH modification time) | Optional (OP) | Integer(0.. 4088 in step of 8) | The System Frame Number that system broadcast message changes |
Table 2
| Information Element/Group name | Need | Multi | Type and reference | Semantics description |
| Master Information Block value label (MIB Value tag) | MP | Integer(1..8) |
Can know to the description of these two cells that from table 1 and table 2 in the prior art, the span of Master Information Block value label is 1 to 8, need 3 bits that this value is indicated.
And change this cell of time for system broadcast message, and its span is 0 to 4088,4088 to be scaled binary system and can be expressed as: 111111111000, and need 12 bits to indicate this value altogether.
In addition, because system broadcast message changes this cell of time, its value increases progressively with 8, and its value may be 0,8,16,24 ... .4088 (and can value be not 1,2,3,4,5,6,7,9, or the like), that is to say that its low three can not be used to, change this cell of time for system broadcast message, its low three are always 0, therefore, can use this three bit representations Master Information Block value label.
Therefore, can use 12 bits to come indicating system broadcast message variation time and these two cells of Master Information Block value label.
As shown in Figure 2, because in the prior art, each calling indicating frame in the WCDMA system has 300 bits, wherein 288 bits are used to carry the paging indication, still have 12 bits to reserve.Like this, system broadcast message change information can be placed in the reserved bit of calling indicating frame and transmit, so subscriber equipment can be after detecting one's own paging indication, understand system broadcast message and changed information, after needn't the beep-page message in receiving Paging Control Channel, judge whether to want reading system broadcasting according to the system broadcast message change information in the beep-page message again, detect the beep-page message indication and read time delay between the system broadcast message that has changed thereby reduced subscriber equipment, improved the efficient of delivery system broadcast.On the other hand, the system broadcast message that also can omit beep-page message changes the information cell, can reduce calling information length, thereby reduces the load of eating dishes without rice or wine to transmit.
In addition, can also in calling indicating frame, use bit still less to come indicating system broadcast message variation information, as in calling indicating frame, using 3 bits as outside the indication Master Information Block value label, use 1 bit to come indicating system broadcast message variation time indicating bit, so that determine whether system broadcast message change this cell of time is empty in the beep-page message.For example, when system broadcast message changes the time indicating bit and is 0, represent that then system broadcast message changes the time cell for empty, that is, can directly go to read Master Information Block and corresponding system broadcast message; When system broadcast message change time indicating bit is 1, when representing that then system broadcast message changes the time cell not for sky, promptly, subscriber equipment can the first reading system broadcast message variation time, goes then to change represented time point (System Frame Number) beginning reading system broadcast of time from system broadcast message on the Broadcast Control Channel.
Moreover, also can expand the radio frames that the place is indicated in paging, increase the capacity of the radio frames of bearing call Indication message, system broadcast message is changed information setting in the calling indicating frame of expansion.As, be example with the WCDMA system, with calling indicating frame be 350 bits by 300 bit expanded, at this moment, system broadcast message can be changed that time indicating bit, system broadcast message change the time and/or Master Information Block value label is arranged in 50 bits of expansion.
The invention provides the method that a kind of indication mechanism broadcast message changes, describe the method for indicating system broadcast message variation of the present invention below with reference to Fig. 3.
At network side, in step 31, the network equipment changes information setting in calling indicating frame with system broadcast message.
For example, in the WCDMA system, described system broadcast message changes information setting in the reserved bit of calling indicating frame: Master Information Block value label can only be set in reserved bit; Master Information Block value label and system broadcast message perhaps are set in reserved bit change the time indicating bit; Master Information Block value label and system broadcast message perhaps are set in reserved bit change the time.Perhaps, increase the capacity of calling indicating frame, Master Information Block value label, system broadcast message change time, system broadcast message are changed the time indicating bit and be arranged in reserved bit and the extended bit by the expansion calling indicating frame.Like this, in calling indicating frame, Master Information Block value label need account for 3 bits, and the system broadcast message change time need account for 9 bits, and system broadcast message changes the time indicating bit need account for 1 bit.
The described network equipment is base station, radio network controller etc.Described subscriber equipment can be mobile phone, Vehicle mounted station etc.
In step 32, the network equipment sends to subscriber equipment and has the calling indicating frame that system broadcast message changes information.
The present invention also provides a kind of method of receiving system broadcast, describes the method for receiving system broadcast of the present invention below with reference to Fig. 4.
In user equipment side, in step 41, subscriber equipment is monitored the calling indicating frame that the network equipment is sent.
In step 42, subscriber equipment judges whether the paging request of automatic network according to the content of calling indicating frame, if, execution in step 43, otherwise, return step 41, continue to monitor the paging indication in the mode of discontinuous reception.
Described calling indicating frame comprises that system broadcast message changes information, described system broadcast message change information comprises Master Information Block value label, perhaps Master Information Block value label and system broadcast message change the time, perhaps Master Information Block value label and system broadcast message change the time indicating bit, and perhaps Master Information Block value label, system broadcast message change time and system broadcast message change time indicating bit.
In step 43, after subscriber equipment listens to the paging indication that belongs to this subscriber equipment, from calling indicating frame, obtain system broadcast message and change information.
In step 44, subscriber equipment judges whether the Master Information Block value label of storing in Master Information Block value label and the subscriber equipment in the system broadcast message change information is identical, if inequality, then execution in step 45, otherwise, return step 41, continue to monitor calling indicating frame.
In step 45, variation has taken place in the system broadcast message that at this moment shows the network equipment and issued, and subscriber equipment need read altered system broadcast message;
That is, subscriber equipment reads altered system broadcast message according to the system broadcast message change information in the calling indicating frame.
When including only Master Information Block value label in the system broadcast message change information, subscriber equipment detects the system broadcast message variation according to Master Information Block value label and goes the reading system broadcast immediately.
When comprising Master Information Block value label and system broadcast message change time indicating bit in the system broadcast message change information, subscriber equipment detects system broadcast message variation back according to Master Information Block value label and judges that according to system broadcast message change time indicating bit going the reading system broadcast immediately still is the time point (System Frame Number) of needs wait acquisition reading system broadcast message variation from beep-page message.
When comprising in the system broadcast message change information that Master Information Block value label and system broadcast message change the time, subscriber equipment detects system broadcast message according to Master Information Block value label to be changed, and can change time point (System Frame Number) the beginning reading system broadcast of time in appointment according to system broadcast message.
When comprising in the system broadcast message change information that Master Information Block value label, system broadcast message change time and system broadcast message change time indicating bit, subscriber equipment detects system broadcast message according to Master Information Block value label to be changed, can change the time indicating bit according to system broadcast message and judge whether that needs continue the reading system broadcast message variation time, so that begin the reading system broadcast or go the reading system broadcast immediately at the time point (System Frame Number) of appointment.
As shown in Figure 5, the invention also discloses a kind of system of indicating system broadcast message variation, described system comprises: the network equipment is used to generate calling indicating frame, and to subscriber equipment transmission calling indicating frame, described calling indicating frame comprises that system broadcast message changes information; Subscriber equipment is used for obtaining system broadcast message from calling indicating frame and changes information, and changes the information receiving system broadcast according to system broadcast message.
The described network equipment comprises: the unit is set, is used for system broadcast message is changed information setting in calling indicating frame, and start transmitting element; Transmitting element is used for the calling indicating frame that has system broadcast message change information is issued subscriber equipment.
Described subscriber equipment comprises: receiving element, be used for paging receiving indication frame, and described calling indicating frame comprises that system broadcast message changes information; The system broadcast message acquiring unit is used for changing the information receiving system broadcast according to the system broadcast message of calling indicating frame.Described system broadcast message acquiring unit comprises: the message parse unit, be used to resolve calling indicating frame, and from calling indicating frame, obtain the Master Information Block value label in the system broadcast message change information; Judging unit is used to judge whether described Master Information Block value label is identical with the local Master Information Block value label of preserving, if inequality, then starts reading unit; Reading unit reads the system broadcast information on the Broadcast Control Channel.
In addition, it should be noted that and above calling indicating frame is improved, is that applicable scope is for idle in the WCDMA technology, URA_PCH, the subscriber equipment of CELL_PCH state; But in the system in future, the subscriber equipment that probably is under the state of activation (connection status) also needs the monitor for pages indication, in this case, for the subscriber equipment under the state of activation (connection status), just can no longer need this message of SYSTEM INFORMATION CHANGE INDICATION to come the system broadcast message that changes has been indicated.
More generally, only Master Information Block value label is arranged in the calling indicating frame, will brings the effect of the time delay that reduces the reading system broadcast.
In addition, the schedule information that in calling indicating frame, can also comprise bearing call message, like this, after user terminal receives calling indicating frame, just can obtain broadcast, promptly according to paging receiving message on the indicated channel of the schedule information of bearing call message according to the schedule information that the system broadcast message in the calling indicating frame changes information and bearing call message.
According to the present invention, because Master Information Block value label and system broadcast message change time are arranged in the calling indicating frame, therefore, this Master Information Block value label read in advance by subscriber equipment and system broadcast message changes the time, the reading system broadcast can be gone in advance, thereby the delay of reading system broadcast can be reduced; In addition, the system broadcast message that can omit beep-page message changes the information cell, thereby can reduce calling information length, improves the efficient of system.
Though described the present invention by embodiment, those of ordinary skills know, without departing from the spirit and substance in the present invention, just can make the present invention that many distortion and variation are arranged, and scope of the present invention is limited to the appended claims.
Claims (13)
1. the method for an indicating system broadcast message variation is characterized in that, comprising: the network equipment changes information setting in the frame that is carrying the paging indication with system broadcast message, and calling indicating frame is issued subscriber equipment.
2. method according to claim 1 is characterized in that, described system broadcast message change information comprises: Master Information Block value label.
3. method according to claim 2 is characterized in that, described system broadcast message changes information and also comprises: system broadcast message changes the time and/or system broadcast message changes the time indicating bit.
4. the method for a receiving system broadcast is characterized in that, comprising:
Subscriber equipment is monitored calling indicating frame, and described calling indicating frame comprises that system broadcast message changes information, and changes information reading system broadcast according to system broadcast message.
5. method according to claim 4, it is characterized in that, describedly change information reading system broadcast according to system broadcast message and specifically comprise: if detect paging indication this subscriber equipment, the Master Information Block value label of storing in Master Information Block value label in the system broadcast message change information and the subscriber equipment is compared, if inequality, then subscriber equipment goes reading system broadcast on the Broadcast Control Channel.
6. method according to claim 5, it is characterized in that, described method also comprises: when also existing system broadcast message to change the time in the system broadcast message change information, subscriber equipment goes on the Broadcast Control Channel to begin the reading system broadcast from the system broadcast message change time.
7. the system of an indicating system broadcast message variation is characterized in that, described system comprises:
The network equipment is used to generate calling indicating frame, and sends calling indicating frame to subscriber equipment, comprises in the described calling indicating frame that system broadcast message changes information;
Subscriber equipment is used for obtaining system broadcast message from calling indicating frame and changes information, and changes the information receiving system broadcast according to system broadcast message.
8. system according to claim 7 is characterized in that, the described network equipment comprises:
The unit is set, is used for system broadcast message is changed information setting in calling indicating frame, and start transmitting element;
Transmitting element is used for the calling indicating frame that has system broadcast message change information is issued subscriber equipment.
9. according to claim 7 or 8 described systems, it is characterized in that described subscriber equipment comprises:
Receiving element is used for paging receiving indication frame, and described calling indicating frame comprises that system broadcast message changes information;
The system broadcast message acquiring unit is used for changing the information receiving system broadcast according to the system broadcast message of calling indicating frame.
10. system according to claim 9 is characterized in that, described system broadcast message acquiring unit comprises:
The message parse unit is used to resolve calling indicating frame, obtains the Master Information Block value label in the system broadcast message change information from calling indicating frame;
Judging unit is used to judge whether described Master Information Block value label is identical with the local Master Information Block value label of preserving, if inequality, then starts reading unit;
Reading unit is used to reading system broadcast message on the Broadcast Control Channel.
11. a network equipment is characterized in that, comprising:
The unit is set, is used for system broadcast message is changed information setting in calling indicating frame, and start transmitting element;
Transmitting element is used for the calling indicating frame that has system broadcast message change information is issued subscriber equipment.
12. a subscriber equipment is characterized in that, comprising:
Receiving element is used for paging receiving indication frame, and described calling indicating frame comprises that system broadcast message changes information;
The system broadcast message acquiring unit is used for changing the information receiving system broadcast according to the system broadcast message of calling indicating frame.
13. subscriber equipment according to claim 12 is characterized in that, described system broadcast message acquiring unit comprises:
The message parse unit is used to resolve calling indicating frame, obtains the Master Information Block value label in the system broadcast message change information from calling indicating frame;
Judging unit is used to judge whether described Master Information Block value label is identical with the local Master Information Block value label of preserving, if inequality, then starts reading unit;
Reading unit is used to reading system broadcast message on the Broadcast Control Channel.
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