CN102104854A - Method, system and device for informing update of system information - Google Patents
Method, system and device for informing update of system information Download PDFInfo
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- CN102104854A CN102104854A CN2009102434432A CN200910243443A CN102104854A CN 102104854 A CN102104854 A CN 102104854A CN 2009102434432 A CN2009102434432 A CN 2009102434432A CN 200910243443 A CN200910243443 A CN 200910243443A CN 102104854 A CN102104854 A CN 102104854A
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Abstract
The embodiment of the invention discloses a method, a system and a device for informing the update of system information. The method comprises the following steps: generating a special signal when a network side device judges that the system information in a polymerization membership carrier wave CC is updated; sending the special signal to a user terminal by the network side device, informing the user terminal that the system information on the polymerization CC is updated, and triggering the user terminal to update the system information. Through the embodiment of the invention, the delayed time and power consumption of the user terminal during the the updating of the system information can be effectively reduced, and the reliability of UE (User Equipment) obtaining the update information of the system information is simultaneously improved.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of system information update notification method, system and equipment.
Background technology
In LTE (Long Term Evolution, Long Term Evolution) and wireless communication system in the past, have only a carrier wave in the sub-district, maximum bandwidth is 20MHz in the LTE system, as shown in Figure 1.
In LTE Advanced (LTE-A, advanced Long Term Evolution) system, the peak rate of system has huge raising than LTE, requires to reach descending 1Gbps, up 500Mbps.Only use a maximum bandwidth can't reach the peak rate requirement as the carrier wave of 20MHz.Therefore, the LTE-A system needs the operable bandwidth of terminal extension, introduced CA (Carrier Aggregation thus, carrier aggregation) technology, be about under the same eNB (base station) a plurality of continuous or discrete carrier aggregation together, be UE (User Equipment, user terminal) service simultaneously, so that required speed to be provided.These carrier waves that condense together are called CC (Component Carrier, member carrier) again, and the sub-district of each LTE-A comprises a CC, by ECGI (E-UTRAN Cell Global ID, E-UTRAN Cell Global Identity) unique identification.Sub-district under the different e NB (member carrier) can not polymerization.For the UE that guarantees LTE can work under the carrier wave of each polymerization, each carrier wave maximum is no more than 20MHz.The CA technology of LTE-A as shown in Figure 2.Have under the base station of LTE-A shown in Figure 24 can polymerization carrier wave, the base station can be simultaneously on 4 carrier waves and UE carry out transfer of data, to improve throughput of system.
When UE need carry out CA when transmission, network can be that the carrier wave of UE configuration respective numbers carries out polymerization according to business demand, and these carrier waves are called as the configuration carrier wave.In the CA transmission course, because the reduction of traffic carrying capacity, UE may no longer need some CC to carry out transfer of data, network can carry out deexcitation to number of C C according to actual conditions in the configuration carrier set, these CC by deexcitation are called as the deexcitation carrier wave, are not called the activation carrier wave by the carrier wave of deexcitation in the configuration carrier set.
In the LTE system, the main contents of system information broadcast comprise:
MIB (Master Information Block, host system message block), major parameter has: downlink bandwidth, PHICH (Physical HARQ Indicator Channel, Physical HARQ Indicator Channel) configuration information, SFN (System Frame Number, System Frame Number);
SIB1 (System Information Block, system information block 1), main contents have: insert relevant information such as PLMN (Public Land Mobile Network with the sub-district, the public land mobile communications network) ID, TAC (Type Approval Code, the type approval sign indicating number), cell ID or the like, the parameter relevant with cell selecting, maximum transmission power, band information, the schedule information of system information, TDD (Time Division Duplexing, time division duplex) configuration parameter, the SI length of window, system information Value Tag etc.;
SIB2 (system information block 2), main contents comprise: access barred information, wireless resource configuration, terminal timer and some constant information, frequency information, MBSFN (Multicast Broadcast Single Frequency Network, Multicast Broadcast Single Frequency Network) subframe configuration information, the information of synchro timer etc.;
SIB3 (system information block 3), main contents have: the common parameter of sub-district gravity treatment, the cell reselection parameters of service frequency, the information such as relevant parameter of co-frequency cell gravity treatment;
SIB4 (system information block 4), main contents have: co-frequency cell tabulation, with blacklist cell list frequently, the Physical Cell Identifier of CSG sub-district with and scope;
SIB5 (system information block 5), main contents have: the alien frequencies carrier information is tabulated, and comprises the frequency of each carrier wave, reselecting parameters, precedence information, iso-frequency adjacent community information, blacklist etc.;
SIB6 (system information block 6), main contents are for being used for UTRA (Universal Telecommunication Radio Access, general communication wireless access) relevant information of system cell gravity treatment, comprise: the relevant information of UTRA system, can comprise UTRA FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) carrier information tabulation, the tabulation of UTRA TDD carrier information, reselecting parameters or the like;
SIB7 (system information block 7), main contents comprise: GERAN carrier information and reselecting parameters thereof for being used for the relevant information of GERAN (GSM/EDGE Radio Access Network, GSM EDGE Radio Access Network road) system cell gravity treatment;
SIB8 (system information block 8), main contents are the relevant information that is used for the gravity treatment of CDMA2000 system cell, comprising: CDMA2000 system time information, search window size and cell reselection parameters;
SIB9 (system information block 9) only carries the identification information of Home NodeB;
SIB10 (system information block 10) carries the main notice that is used for early warning ETWS (Earthquake and Tsunami Warning System, earthquake and tsunami warning system), comprises message identification numbers, sequence number, alarm type, alarm security information etc.;
SIB11 (system information block 11) carries the assistant notification that is used for early warning ETWS, comprises message identification numbers, sequence number, the segment information of alarm information, fragment number, section, data coding scheme etc.
In said system information, in the LTE system, the terminal of RRC_CONNECTED (connection) state will be carried out data transmit-receive, just must know the MIB of current area, SIB1 and SIB2 message.In the LTE-A system, under the base station a plurality of CC are arranged, consider the requirement of compatible LTE terminal, need to broadcast one on each CC and overlap independently system information, and the system information on each CC may be different: as frequency information, the configuration of PHICH etc.Therefore, the LTE-A terminal need be obtained each CC and go up up-to-date system information when using a plurality of CC to carry out transfer of data.
Except ETWS message, the change of system information can only take place in specific radio frames, determines by revising cycle MP (Modification Period).In a modification cycle, system information may send repeatedly, and repeatedly the system information content of Fa Songing is identical.System information can only change after the border in the cycle of modification, and the boundary definition of revising the cycle is as follows: SFN mod m=0.Wherein, SFN is a System Frame Number, and m is the modification cycle, and unit is a radio frames.
When network need change all or part of system information, it at first needs to send " systemInfoModification (system information change indication) " to terminal, the notice terminal changes the system information that takes place, and notification procedure may need to continue a modification cycle.Revise the cycle at the next one, network promptly can send the system information after the renewal.System information based on above-mentioned rule changes schematic diagram as shown in Figure 3.After receiving system information change indication, terminal is revised the system information after locating to read renewal of beginning in cycle immediately at the next one.Before terminal was obtained new system, terminal continued to use old system information.
In the LTE system, the announcement machine of system information change is shaped on following two kinds, and terminal can be selected any in the above dual mode, realizes the renewal of system information:
(1) when system information changes, network uses beep-page message to send " systemInfoModification (system information change indication) " to the terminal that is in RRC_IDLE (free time) and RRC_CONNECTED (connection) state.If terminal has been received the beep-page message that comprises " systemInfoModification ", can revise the boundary in cycle at the next one and change with regard to knowing system information." systemInfoModification " only can notify terminal system information to change, and can not indicate which or which system information to change to terminal.The change of some system information can not trigger the transmission of the beep-page message that comprises " systemInfoModification ", as the change of ETWS.
Terminal can determine by the following method whether the system information of being deposited is effective: under the situation of not receiving the systemInfoModification indication, terminal need be in a modification cycle, at least read beep-page message modificationPeriodCoeff time, in the hope of finding the systemInfoModification indication.If do not read beep-page message, terminal thinks that system information will can not change in the next one modification cycle.If terminal reads the beep-page message that comprises the systemInfoModification indication, just think that system information will change in the next one is revised the cycle.The introducing of systemInfoModifcation can be avoided the frequent read system information of terminal, reduces the power consumption of terminal.
(2) release status of the current system information of the reflection of the Value Tag value in the system information block 1 (SIB1), the terminal of RRC_IDLE and RRC_CONNECTED state has read after the Value Tag among the SIB1, compare with the Value Tag value of obtaining before this, if two Value Tag numerical value differences, illustrate that variation has taken place current system information, terminal will be upgraded system information immediately.
Problems of the prior art are: in the LTE-A system that uses carrier aggregation technology, because the coverage of each member carrier may be different, the method for utilizing beep-page message to carry out the system information update notification is insecure.Though obtaining the method for system message update notice by the SIB1 in the read system message is feasible,, this advice method can bring bigger time delay on the one hand, can increase the burden of UE on the other hand, and then cause the increase of UE power consumption.
Summary of the invention
Embodiments of the invention provide a kind of system information update notification method, system and equipment, are used for realizing the UE that is in connected state is carried out the notice that system information is upgraded in the LTE-A system.
Embodiments of the invention provide a kind of system information update notification method, comprising:
Network equipment is judged when the system information on the polymerization member carrier CC is upgraded, is generated dedicated signaling;
Described network equipment sends described dedicated signaling to user terminal, notifies the system information on the described user terminal polymerization CC that renewal has taken place, and triggers described user terminal and carries out the system information renewal.
Wherein, described network equipment is judged when the system information on the polymerization member carrier CC is upgraded, and generates dedicated signaling, comprises in the following mode one or more:
Whether described network side generates the dedicated signaling that carries the bit indicating bit, by the different value of described bit indicating bit, indicate the system information on the described polymerization CC to upgrade; And/or
Described network side generates and carries the dedicated signaling that system information is upgraded bitmap bitmap information, upgrades bitmap bitmap information by described system information, indicates described polymerization CC to go up the CC of generation systems information updating; And/or
Described network side generates and carries the dedicated signaling of carrier index information, by described carrier index information, indicates described polymerization CC to go up the CC of generation systems information updating.
Wherein, described dedicated signaling is radio resource control RRC signaling or MAC CE signaling or physical layer signaling.
Wherein, described network equipment sends described dedicated signaling to user terminal, comprising:
Described network equipment only sends described dedicated signaling to the user terminal that is in connection status that has disposed described polymerization CC.
Embodiments of the invention also provide a kind of system information update notification method, comprising:
User terminal receives the dedicated signaling that network equipment sends;
Described user terminal knows that according to described dedicated signaling renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded.
Wherein, described user terminal knows that according to described dedicated signaling renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded, and comprising:
Described user terminal, is gone up the system information of all CC and is upgraded when knowing the system information renewal on the polymerization CC according to the bit indicating bit in the described dedicated signaling to all polymerization CC; Or
Described user terminal upgrades bitmap bitmap information according to the system information in the described dedicated signaling, knows that polymerization CC goes up the CC of generation systems information updating, and carries out system information and upgrade;
Described user terminal knows that according to the carrier index information in the described dedicated signaling polymerization CC goes up the CC of generation systems information updating, and carries out system information and upgrade.
Wherein, described dedicated signaling is radio resource control RRC signaling or MAC CE signaling or physical layer signaling.
Wherein, described user terminal carries out the mode that system information upgrades and comprises:
The system broadcasts of the CC that the direct read system information of described user terminal changes is carried out system information and is upgraded; Or
Described user terminal receives that network side sends comprises and carries out the dedicated signaling of the system information after the renewal system information according to described dedicated signaling and upgrade.
Wherein, the system broadcasts of the CC that described user terminal to read system information changes comprises: described user terminal is revised cycle, the system broadcasts of the CC that read system information changes according to the BCCH that gets access to; The method that described user terminal obtains the BCCH modification cycle comprises:
Described user terminal is according to the configuration of network side or by reading the system information on the CC, and the BCCH that obtains CC revises the cycle; For different CC, it is identical or different that BCCH revises the cycle.
Embodiments of the invention also provide a kind of network equipment, comprising:
The dedicated signaling generation unit when being used to judge the system information renewal on the polymerization member carrier CC, generates dedicated signaling;
The update notification unit is used for sending the dedicated signaling that described dedicated signaling generation unit generates to user terminal, notifies the system information on the described user terminal polymerization CC that renewal has taken place, and triggers described user terminal and carries out the system information renewal.
Wherein, described dedicated signaling generation unit specifically is used for one or more generation dedicated signalings according to following mode:
Whether the dedicated signaling of bit indicating bit is carried in generation, by the different value of described bit indicating bit, indicate the system information on the described polymerization CC to upgrade; And/or
The dedicated signaling that system information is upgraded bitmap bitmap information is carried in generation, upgrades bitmap bitmap information by described system information, indicates described polymerization CC to go up the CC of generation systems information updating; And/or
The dedicated signaling of carrier index information is carried in generation, by described carrier index information, indicates described polymerization CC to go up the CC of generation systems information updating.
Wherein, described dedicated signaling is that radio resource control RRC signaling or MAC CE signaling or physical layer are transmitted orders.
Wherein, described update notification unit specifically is used for:
Only send described dedicated signaling to the user terminal that is in connection status that has disposed described polymerization CC.
Embodiments of the invention also provide a kind of user terminal, comprising:
The dedicated signaling receiving element is used to receive the dedicated signaling that network equipment sends;
The system information updating block is used for knowing that according to the dedicated signaling that described dedicated signaling receiving element receives renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded.
Wherein, described system information updating block specifically is used for:
According to the bit indicating bit in the described dedicated signaling, when knowing the system information renewal on the polymerization CC, all polymerization CC are gone up the system information of all CC and upgrade; Or
Upgrade bitmap bitmap information according to the system information in the described dedicated signaling, know that polymerization CC goes up the CC of generation systems information updating, and carry out system information and upgrade;
Know that according to the carrier index information in the described dedicated signaling polymerization CC goes up the CC of generation systems information updating, and carry out system information and upgrade.
Wherein, described dedicated signaling is radio resource control RRC signaling or MAC CE signaling or physical layer signaling.
Wherein, described system information updating block specifically is used for:
The system broadcasts of the CC that direct read system information changes is carried out system information and is upgraded; Or
The dedicated signaling that comprises the system information after the renewal that receives that network side sends carries out system information according to described dedicated signaling and upgrades.
Wherein, also comprise:
BCCH revises the cycle acquiring unit, is used for according to the configuration of network side or by reading the system information on the CC, and the BCCH that obtains CC revises the cycle; For different CC, it is identical or different that BCCH revises the cycle;
Described system information updating block specifically is used for: revise the BCCH modification cycle that the cycle acquiring unit gets access to, the system broadcasts of the CC that read system information changes according to described BCCH.
Embodiments of the invention also provide a kind of communication system, comprising:
Network equipment when being used to judge the system information renewal on the polymerization member carrier CC, generating dedicated signaling and to the user terminal transmission, notifies the system information on the described user terminal polymerization CC that renewal has taken place;
User terminal is used to receive the dedicated signaling that network equipment sends, and knows that according to described dedicated signaling renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded.
Compared with prior art, the present invention has the following advantages:
The embodiment of the application of the invention can effectively reduce the time delay in the system information renewal process and the power consumption of user terminal, improved the reliability that UE obtains the system information update notification simultaneously.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the distribution of carriers schematic diagram of LTE sub-district in the prior art;
The distribution of carriers schematic diagram of the LTE-A sub-district of Fig. 2 is available technology adopting carrier aggregation CA;
Fig. 3 is the schematic diagram of system information change in the prior art;
Fig. 4 is the flow chart of the system information update notification method that provides in the embodiment of the invention;
Fig. 5 is the structural representation of the network equipment that provides in the embodiment of the invention;
Fig. 6 is the structural representation of the user terminal that provides in the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
A kind of system information update notification method is provided in the embodiments of the invention, as shown in Figure 4, has comprised:
Step s401, network equipment are judged when the system information on the polymerization CC is upgraded, are generated dedicated signaling;
Concrete, this dedicated signaling can be RRC signaling or MAC CE signaling or physical layer signaling.The concrete generating mode of dedicated signaling includes but not limited to the combination of following mode and following mode:
(1) generates the dedicated signaling that carries the bit indicating bit,, indicate the system information on the described polymerization CC whether to upgrade by the different value of described bit indicating bit;
(2) generate the dedicated signaling that carries system information renewal bitmap bitmap information, upgrade bitmap bitmap information, indicate described polymerization CC to go up the CC of generation systems information updating by described system information;
(3) dedicated signaling of carrier index information is carried in generation, by described carrier index information, indicates described polymerization CC to go up the CC of generation systems information updating.
Step s402, network equipment send dedicated signaling to user terminal, notify the system information on this user terminal polymerization CC that renewal has taken place, and trigger user terminal and carry out the system information renewal;
Step s403, user terminal receive the dedicated signaling that network equipment sends;
Step s404, user terminal are known that according to this dedicated signaling renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC are upgraded.
In the method that the embodiment of the invention provides, send the dedicated signaling that upgrades about system information to user terminal, trigger user terminal, the system information on the polymerization CC is upgraded according to this dedicated signaling by network side.This method can effectively reduce the time delay in the system information renewal process and the power consumption of user terminal, improved the reliability that UE obtains the system information update notification simultaneously.
Below in conjunction with concrete execution mode, the embodiment of the system information update notification method that provides in the embodiment of the invention is elaborated.
In the embodiments of the invention one, the Notification Method that provides a kind of system information to upgrade.Wherein, network side uses dedicated signaling to carry the bit indicating bit, carries out the system information Notification of Changes.
In the present embodiment, for network equipment:
Network equipment (as the base station) is judged for member carrier CC, whether is needed updating system information.In the CA transmission course, when network equipment judges that a certain member carrier CC needs updating system information, use dedicated signaling to send " system information change indication " to the UE of relevant RRC_CONNECTED state, by in dedicated signaling, carrying the mode of bit indicating bit, indicate the system information on certain UE polymerization CC whether will change.Concrete, when the system information on this UE polymerization CC will change, the bit indicating bit that carries in the network side dedicated signaling was set to true; Otherwise the bit indicating bit that carries in the dedicated signaling is set to false.The above-mentioned dedicated signaling that carries the bit indicating bit can be RRC signaling, MAC CE and physical layer signaling.
Below be that example describes with the physical layer signaling:
With the physical layer signaling is PDCCH (Physical Downlink Control CHannel, Physical Downlink Control Channel) message is example, add a territory in PDCCH message, this territory takies a bit (also can be a plurality of bits), is used to refer to system information and upgrades.If system message does not change, then this bit is 0 (when this territory took a plurality of bit, all bits were 0); If system message changes, then this bit is not 0 (when this territory took a plurality of bit, each bit was not 0 entirely).When using this method, when network equipment judges that certain polymerization CC is with updating system information, in the BCCH modification cycle before the system information updated time, network equipment sends above-mentioned dedicated signaling to relevant UE: in the dedicated signaling, the pairing bit in territory of indication system information change is set to true (non-complete 0) among the PDCCH.
Be that example describes with the RRC signaling again:
When adopting the RRC signaling to carry bit indicating bit information (is example with a bit), need connect reprovision (RRC Connection Reconfiguration) message to existing RRC and expand, RRC connects the form following (the overstriking italicized item is the bit indicating bit message part of expansion) of reallocation message after the expansion:
Equally, when network equipment judged that system information on certain UE polymerization CC will change, the bit indicating bit was set to true (non-complete 0); Otherwise, be set to false.
In the present embodiment, for the terminal among the LTE-A:
If the LTE-A terminal is received the dedicated signaling that contains non-complete 0 bit indicating bit, then revise the original position in cycle at next BCCH, system information on the polymerization CC that all system informations of system broadcasts are changed reads again, after system information on finishing polymerization CC read, terminal was preserved these system informations.In addition, UE also can obtain the system information of renewal by other modes, such as by the dedicated signaling mode, directly sends the dedicated signaling of the system information after comprising renewal to terminal by network side, and the system information after upgrading is directly sent to associated terminal; Under this situation, terminal needn't be broadcasted by reading system and upgrade, user terminal receives that network side sends comprise the dedicated signaling of the system information after the renewal after, directly carry out system information and upgrade according to this dedicated signaling.
In the said process, the BCCH of each the polymerization CC cycle of revising can dispose when UE enters the CA transmission, and perhaps the BCCH cycle of revising with each CC all is configured to equally.If there is the situation that some CC modification cycle changes, this cycle can dispose by dedicated signaling, perhaps obtains by the system information that reads on this CC.
In the embodiments of the invention two, the Notification Method that provides a kind of system information to upgrade.Wherein, dedicated signaling carries bitmap, carries out the system information Notification of Changes.
In the present embodiment, for network equipment:
Network equipment (as the base station) is judged for member carrier CC, whether is needed updating system information.In the CA transmission course, when a certain member carrier CC needed updating system information, network equipment used dedicated signaling to send " system information change indication " to the terminal of relevant RRC_CONNECTED state.And by in dedicated signaling, carrying system information change bit pattern bitmap (bitmap) information, the corresponding CC of indication updating system information.For example, when the system information of certain member carrier CC changes, among the bitmap bit indication that should member carrier CC is set to true, the bit of the member carrier CC correspondence that system information does not change is set to false.The dedicated signaling that carries this bitmap information can be RRC signaling, MAC CE and physical layer signaling.
Below be that example describes with MAC CE:
Because relevant MAC CE is used for the notifying system message renewal in the LTE system, therefore need the new MAC CE of definition carry this bitmap information.Can redetermination one class MAC CE, promptly LCID value of redetermination is specifically designed to the indication mechanism information updating, choose among these values of 01011-11011 that the index value of this LCID correspondence can keep from the LTE agreement in advance.Network equipment (as the base station) is numbered each carrier wave of its control in advance, and the member carrier CC numbering of participation carrier aggregation CA can begin to carry out to send to this UE before the CA transmission at UE.Suppose to judge that variation has taken place the system information that is numbered 1 and 4 CC through the base station, then the base station can be to polymerization the UE of CC1 or CC4 send the MAC CE of the above-mentioned type, form is as shown in table 4:
Table 4 MAC CE carries system information change bitmap information
| 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
When using this method, when network equipment is judged certain polymerization CC with updating system information, in the BCCH modification cycle before the system information updated time, network equipment sends above-mentioned dedicated signaling to relevant UE: carry bitmap in the dedicated signaling, and the bit of the CC correspondence that system information changes among the bitmap is set to true; The bit of the CC correspondence that system information does not change is set to false.
Be that example describes with the RRC signaling again:
Carry bitmap information if adopt the RRC signaling, need connect reprovision (RRC Connection Reconfiguration) message to existing RRC and expand, RRC connects the form following (the overstriking italicized item is the bitmap message part of expansion) of reallocation message after the expansion:
Equally, when network equipment judged that the system information that CC is arranged takes place to upgrade, the indication of the bit of corresponding CC was set to true among the bitmap, and the bit of the CC correspondence that system information does not change is set to false.
In the present embodiment, for the terminal among the LTE-A:
The LTE-A terminal is received if carried the dedicated signaling of system information change bitmap, then revise the original position in cycle at next BCCH, system information on the CC that is set to true among the bitmap that comprises in the system broadcasts is read again, after system information on finishing corresponding CC read, terminal was preserved these system informations.In addition, UE also can obtain the system information of renewal by other modes, and such as by the dedicated signaling mode, promptly user terminal receives that network side sends comprises and carry out the dedicated signaling of the system information after the renewal system information according to this dedicated signaling and upgrade.
In the said process, the BCCH of each the polymerization CC cycle of revising can dispose when UE enters the CA transmission, and perhaps the BCCH cycle of revising with each CC all is configured to equally.If there is the situation that some CC modification cycle changes, this cycle can dispose by dedicated signaling, perhaps obtains by the system information that reads on this CC.
In the embodiments of the invention three, the Notification Method that provides a kind of system information to upgrade.Wherein, carry carrier index in the dedicated signaling, carry out the system information Notification of Changes.
In the present embodiment, for network equipment:
Network equipment (as the base station) is judged for member carrier CC, whether is needed updating system information.In the CA transmission course, when a certain member carrier CC needed updating system information, network used dedicated signaling to send " system information change indication " to the terminal of relevant RRC_CONNECTED state.Can be by in dedicated signaling, carrying carrier index information, the corresponding CC of indication updating system information.The dedicated signaling that carries this carrier index information can be RRC signaling, MAC CE and physical layer signaling, and this sentences the RRC signaling is example:
The base station is numbered the carrier wave of its control in advance, and the CC numbering that participates in CA can be notified this UE when UE begins to carry out the CA transmission or before the transmission, this numbering can be the base station level other, also can be the UE level other, suppose to judge through the base station, variation has taken place in the system information that is numbered 2 and 3 CC, then the base station can be to polymerization the UE of CC2 and CC3 send the RRC dedicated signaling, carry the change numbering { 2 of CC of system information in this RRC signaling, 3}, suppose to adopt the coded system of 3 bits that CC is numbered, promptly 010,011}.
When using this method, when network equipment (as the base station) is judged certain polymerization CC with updating system information, in the BCCH modification cycle before the system information updated time, network sends above-mentioned dedicated signaling to relevant UE: the carrier index information of carrying the CC that system information changes in the dedicated signaling.
In the present embodiment, for the terminal among the LTE-A:
If the LTE-A terminal is received the dedicated signaling that has carried system information change carrier index information, then revise the original position in cycle at next BCCH, system information on the corresponding CC in the system broadcasts is read again, after system information on finishing corresponding CC read, terminal was preserved these system informations.In addition, UE also can obtain the system information of renewal by other modes, and such as by the dedicated signaling mode, promptly user terminal receives that network side sends comprises and carry out the dedicated signaling of the system information after the renewal system information according to this dedicated signaling and upgrade.
In the said process, the BCCH of each the polymerization CC cycle of revising can dispose when UE enters the CA transmission, and perhaps the BCCH cycle of revising with each CC all is configured to equally.If there is the situation that some CC modification cycle changes, this cycle can dispose by dedicated signaling, perhaps obtains by the system information that reads on this CC.
In the method that the embodiment of the invention provides, send the dedicated signaling that upgrades about system information to user terminal, trigger user terminal, the system information on the polymerization CC is upgraded according to this dedicated signaling by network side.This method can effectively reduce the time delay in the system information renewal process and the power consumption of user terminal, improved the reliability that UE obtains the system information update notification simultaneously.
A kind of communication system also is provided in the embodiments of the invention, has comprised:
Network equipment when being used to judge the system information renewal on the polymerization member carrier CC, generating dedicated signaling and to the user terminal transmission, notifies the system information on the described user terminal polymerization CC to upgrade;
User terminal is used to receive the dedicated signaling that network equipment sends, and according to described dedicated signaling the system information on the polymerization CC is upgraded.
A kind of network equipment also is provided in the embodiments of the invention, as shown in Figure 5, has comprised:
Dedicated signaling generation unit 10 when being used to judge the system information renewal on the polymerization member carrier CC, generates dedicated signaling;
Wherein, dedicated signaling generation unit 10 specifically is used for one or more generation dedicated signalings according to following mode, and dedicated signaling can be RRC signaling or MAC CE signaling or physical layer signaling:
Whether the dedicated signaling of bit indicating bit is carried in generation, by the different value of described bit indicating bit, indicate the system information on the described polymerization CC to upgrade; And/or
The dedicated signaling that system information is upgraded bitmap bitmap information is carried in generation, upgrades bitmap bitmap information by described system information, indicates described polymerization CC to go up the CC of generation systems information updating; And/or
The dedicated signaling of carrier index information is carried in generation, by described carrier index information, indicates described polymerization CC to go up the CC of generation systems information updating.
In addition, update notification unit 20 specifically is used for: only send dedicated signaling to the user terminal that is in connection status that has disposed described polymerization CC.
Embodiments of the invention also provide a kind of user terminal, as shown in Figure 6, comprising:
Dedicated signaling receiving element 30 is used to receive the dedicated signaling that network equipment sends; This dedicated signaling can be RRC signaling or MAC CE signaling or physical layer signaling
System information updating block 40 is used for knowing that according to the dedicated signaling that described dedicated signaling receiving element 10 receives renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded.
Wherein, system information updating block 40 specifically is used for:
According to the bit indicating bit in the described dedicated signaling, when knowing the system information renewal on the polymerization CC, all polymerization CC are gone up the system information of all CC and upgrade; Or
Upgrade bitmap bitmap information according to the system information in the described dedicated signaling, know that polymerization CC goes up the CC of generation systems information updating, and carry out system information and upgrade;
Know that according to the carrier index information in the described dedicated signaling polymerization CC goes up the CC of generation systems information updating, and carry out system information and upgrade.
System information updating block 40 is carrying out system information when upgrading, and directly the system broadcasts of the CC that changes of read system information is carried out the system information renewal; Or the dedicated signaling that comprises the system information after the renewal that receives that network side sends, carry out system information according to this dedicated signaling and upgrade.
In addition, in this user terminal, also comprise:
BCCH revises cycle acquiring unit 50, is used for according to the configuration of network side or by reading the system information on the CC, and the BCCH that obtains CC revises the cycle and offers system information updating block 40; For different CC, it is identical or different that BCCH revises the cycle.System information updating block 40 specifically is used for revising the BCCH modification cycle that cycle acquiring unit 50 gets access to, the system broadcasts of the CC that read system information changes according to BCCH.
System that the application of the invention embodiment provides and equipment send the dedicated signaling that upgrades about system information by network side to user terminal, trigger user terminal according to this dedicated signaling, and the system information on the polymerization CC is upgraded.It can effectively reduce the time delay in the system information renewal process and the power consumption of user terminal, improves the reliability that UE obtains the system information update notification simultaneously.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, unit in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the unit in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.A unit can be merged in the unit of the foregoing description, also can further split into a plurality of subelements.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
Claims (19)
1. a system information update notification method is characterized in that, comprising:
Network equipment is judged when the system information on the polymerization member carrier CC is upgraded, is generated dedicated signaling;
Described network equipment sends described dedicated signaling to user terminal, notifies the system information on the described user terminal polymerization CC that renewal has taken place, and triggers described user terminal and carries out the system information renewal.
2. the method for claim 1 is characterized in that, described network equipment is judged when the system information on the polymerization member carrier CC is upgraded, and generates dedicated signaling, comprises in the following mode one or more:
Whether described network side generates the dedicated signaling that carries the bit indicating bit, by the different value of described bit indicating bit, indicate the system information on the described polymerization CC to upgrade; And/or
Described network side generates and carries the dedicated signaling that system information is upgraded bitmap bitmap information, upgrades bitmap bitmap information by described system information, indicates described polymerization CC to go up the CC of generation systems information updating; And/or
Described network side generates and carries the dedicated signaling of carrier index information, by described carrier index information, indicates described polymerization CC to go up the CC of generation systems information updating.
3. method as claimed in claim 1 or 2 is characterized in that, described dedicated signaling is radio resource control RRC signaling or MAC CE signaling or physical layer signaling.
4. method as claimed in claim 1 or 2 is characterized in that, described network equipment sends described dedicated signaling to user terminal, comprising:
Described network equipment only sends described dedicated signaling to the user terminal that is in connection status that has disposed described polymerization CC.
5. a system information update notification method is characterized in that, comprising:
User terminal receives the dedicated signaling that network equipment sends;
Described user terminal knows that according to described dedicated signaling renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded.
6. method as claimed in claim 5 is characterized in that, described user terminal knows that according to described dedicated signaling renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded, and comprising:
Described user terminal, is gone up the system information of all CC and is upgraded when knowing the system information renewal on the polymerization CC according to the bit indicating bit in the described dedicated signaling to all polymerization CC; Or
Described user terminal upgrades bitmap bitmap information according to the system information in the described dedicated signaling, knows that polymerization CC goes up the CC of generation systems information updating, and carries out system information and upgrade;
Described user terminal knows that according to the carrier index information in the described dedicated signaling polymerization CC goes up the CC of generation systems information updating, and carries out system information and upgrade.
7. as claim 5 or 6 described methods, it is characterized in that described dedicated signaling is radio resource control RRC signaling or MAC CE signaling or physical layer signaling.
8. as claim 5 or 6 described methods, it is characterized in that the mode that described user terminal carries out the system information renewal comprises:
The system broadcasts of the CC that the direct read system information of described user terminal changes is carried out system information and is upgraded; Or
Described user terminal receives that network side sends comprises and carries out the dedicated signaling of the system information after the renewal system information according to described dedicated signaling and upgrade.
9. method as claimed in claim 8, it is characterized in that, the system broadcasts of the CC that described user terminal to read system information changes comprises: described user terminal is revised cycle, the system broadcasts of the CC that read system information changes according to the BCCH that gets access to; The method that described user terminal obtains the BCCH modification cycle comprises:
Described user terminal is according to the configuration of network side or by reading the system information on the CC, and the BCCH that obtains CC revises the cycle; For different CC, it is identical or different that BCCH revises the cycle.
10. a network equipment is characterized in that, comprising:
The dedicated signaling generation unit when being used to judge the system information renewal on the polymerization member carrier CC, generates dedicated signaling;
The update notification unit is used for sending the dedicated signaling that described dedicated signaling generation unit generates to user terminal, notifies the system information on the described user terminal polymerization CC that renewal has taken place, and triggers described user terminal and carries out the system information renewal.
11. network equipment as claimed in claim 10 is characterized in that, described dedicated signaling generation unit specifically is used for one or more generation dedicated signalings according to following mode:
Whether the dedicated signaling of bit indicating bit is carried in generation, by the different value of described bit indicating bit, indicate the system information on the described polymerization CC to upgrade; And/or
The dedicated signaling that system information is upgraded bitmap bitmap information is carried in generation, upgrades bitmap bitmap information by described system information, indicates described polymerization CC to go up the CC of generation systems information updating; And/or
The dedicated signaling of carrier index information is carried in generation, by described carrier index information, indicates described polymerization CC to go up the CC of generation systems information updating.
12., it is characterized in that described dedicated signaling is radio resource control RRC signaling or MAC CE signaling or physical layer signaling as claim 10 or 11 described network equipments.
13., it is characterized in that described update notification unit specifically is used for as claim 10 or 11 described network equipments:
Only send described dedicated signaling to the user terminal that is in connection status that has disposed described polymerization CC.
14. a user terminal is characterized in that, comprising:
The dedicated signaling receiving element is used to receive the dedicated signaling that network equipment sends;
The system information updating block is used for knowing that according to the dedicated signaling that described dedicated signaling receiving element receives renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded.
15. user terminal as claimed in claim 14 is characterized in that, described system information updating block specifically is used for:
According to the bit indicating bit in the described dedicated signaling, when knowing the system information renewal on the polymerization CC, all polymerization CC are gone up the system information of all CC and upgrade; Or
Upgrade bitmap bitmap information according to the system information in the described dedicated signaling, know that polymerization CC goes up the CC of generation systems information updating, and carry out system information and upgrade;
Know that according to the carrier index information in the described dedicated signaling polymerization CC goes up the CC of generation systems information updating, and carry out system information and upgrade.
16., it is characterized in that described dedicated signaling is radio resource control RRC signaling or MAC CE signaling or physical layer signaling as claim 14 or 15 described user terminals.
17., it is characterized in that described system information updating block specifically is used for as claim 14 or 15 described user terminals:
The system broadcasts of the CC that direct read system information changes is carried out system information and is upgraded; Or
The dedicated signaling that comprises the system information after the renewal that receives that network side sends carries out system information according to described dedicated signaling and upgrades.
18. user terminal as claimed in claim 17 is characterized in that, also comprises:
BCCH revises the cycle acquiring unit, is used for according to the configuration of network side or by reading the system information on the CC, and the BCCH that obtains CC revises the cycle; For different CC, it is identical or different that BCCH revises the cycle;
Described system information updating block specifically is used for: revise the BCCH modification cycle that the cycle acquiring unit gets access to, the system broadcasts of the CC that read system information changes according to described BCCH.
19. a communication system is characterized in that, comprising:
Network equipment when being used to judge the system information renewal on the polymerization member carrier CC, generating dedicated signaling and to the user terminal transmission, notifies the system information on the described user terminal polymerization CC that renewal has taken place;
User terminal is used to receive the dedicated signaling that network equipment sends, and knows that according to described dedicated signaling renewal has taken place the system information on the polymerization CC, and the system information on the polymerization CC is upgraded.
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