Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, particularly solves prior art and can't realize avoiding UE resident problem on non-resident carrier, and further solved on this basis and utilize non-resident carrier to carry out the problem of transfer of data.
For achieving the above object, one aspect of the present invention proposes a kind of method of transmitting linkage information of non-resident carrier wave, in the sub-district, comprise at least one non-resident carrier, and do not broadcasting the UE required link information of working on described non-resident carrier on the described non-resident carrier, may further comprise the steps: described UE selects the resident carrier wave of described sub-district to carry out resident; Described UE receives the required link information of working that the base station sends on non-resident carrier on described resident carrier wave.
The present invention also proposes a kind of system of transmitting linkage information of non-resident carrier wave, comprise base station and UE, wherein, in the sub-district of described base station, comprise at least one non-resident carrier, and do not broadcasting the UE required link information of on described non-resident carrier, working on the described non-resident carrier, described UE, it is resident to be used to select the resident carrier wave of described sub-district to carry out, and receives the required link information of working on non-resident carrier that the base station sends on described resident carrier wave; Described base station is used for being sent in the required link information of working on the non-resident carrier to the UE on described resident carrier wave.
The present invention also proposes a kind of UE, in the sub-district, comprise at least one non-resident carrier, and do not broadcasting the UE required link information of on described non-resident carrier, working on the described non-resident carrier, described UE comprises resident selection module and receiver module, described resident selection module is used to select the resident carrier wave of described sub-district to carry out resident; Described receiver module is used for receiving the required link information of working that the base station sends on non-resident carrier on described resident carrier wave.
The present invention also proposes a kind of base station, comprises sending module and reallocation message sending module, and described sending module is used for being sent in the required link information of working on the non-resident carrier to the UE on resident carrier wave; Described reallocation message sending module is used for sending dedicated control signaling to described UE, and the described UE of indication adopts at least one non-resident carrier to carry out polymerization carrier wave CA transmission in the described dedicated control signaling.
The present invention is not only by solving and avoid UE to reside in the problem of non-resident carrier not broadcasting link information that UE works required on the non-resident carrier on non-resident carrier, also by being transmitted in the mode of the required link information of working on the non-resident carrier, reduced the expense of system's paging on the one hand, also solved the problem that UE obtains the non-resident carrier system information on the other hand, system can be worked.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
The present invention mainly is, on the one hand by solving and avoid UE to reside in the problem of non-resident carrier not broadcasting link information that UE works required on the non-resident carrier on non-resident carrier, on the other hand by being transmitted in the required link information of working on the non-resident carrier, thereby reduced the expense of system's paging, solved the problem that UE obtains the non-resident carrier system information, system can be worked.For how being transmitted in the required link information of working on the non-resident carrier, the present invention proposes various embodiments, for what the required link information of working on non-resident carrier need stress be, this link information is the UE more needed necessary information of working on non-resident carrier, will be described these necessary link informations by way of example in following embodiment.Also need to prove, not only be suitable for the LTE-A system in the present invention, also applicable to the evolution system of other Future Development.
Embodiment one,
In this embodiment, the base station is added on the required link information of working on the non-resident carrier in the system information of resident carrier wave, and in resident carrier wave this system information of broadcasting, make resident UE to resident carrier wave when receiving resident carrier system information, also can obtain the UE required link information of on non-resident carrier, working.
As shown in Figure 3, method flow diagram for transmitting linkage information of non-resident carrier wave in the LTE-A system of the embodiment of the invention one, in this embodiment, comprise at least one non-resident carrier in the sub-district of base station, and the UE required link information of working is not being broadcasted in the base station on the non-resident carrier on non-resident carrier.This embodiment may further comprise the steps:
Step S301, UE select a resident carrier wave of sub-district to carry out resident.Describe for example, suppose to have 5 carrier waves in the sub-district in this embodiment, wherein carrier wave 1,2,3 can be resident, carrier wave 4,5 can not be resident, its base station broadcast system information not on carrier wave 4 and 5, promptly do not broadcast the UE required link information of working on non-resident carrier, UE just can not be resident on carrier wave 4,5 like this.
Step S302, UE read the system information of its resident carrier wave, comprise the UE required link information of working on non-resident carrier in this embodiment in this system information, and preserve.In this embodiment, the required link information of working on non-resident carrier can be various ways, for example can be MIB, SIB1 and the SIB2 of non-resident carrier wave.Below the content of system information is simply introduced.
In the LTE system, the main contents of system information can be found out from following table 1:
Table 1
In the LTE-A system, the terminal that is in connection (RRC_CONNECTED) state will just must be known the MIB of non-resident carrier, the content of SIB1 and SIB2 message in the enterprising line data transmitting-receiving of non-resident carrier.
In this embodiment, can adopt multiple mode to add the UE required link information of working in the system information of resident carrier wave on non-resident carrier, a for example newly-increased SIB such as SIB12 perhaps expand existing SIB.Following several modes will be described in the mode of newly-increased SIB, as definition SIB12, the necessary system information of carrier wave 4 and 5 are put among the SIB12.
Mode one comprises the MIB of non-resident carrier among the SIB12, SIB1 and SIB2 for example comprise the MIB of carrier wave 4 and carrier wave 5 among the SIB12, and SIB1 and SIB2 are as shown in table 2.
Table 2
Carrier identification |
Particular content |
Carrier wave 4 |
Complete MIB, SIB1 and SIB2 |
Carrier wave 5 |
Complete MIB, SIB1 and SIB2 |
Mode two, the necessary system information that embodies in increment (delta) mode, promptly only carry information different in the system information of other non-resident carriers with the resident carrier wave of work at present, UE thinks that automatically other system informations that do not occur are identical with the resident carrier wave of work at present after receiving these information.Because the system information under the same sub-district between the member carrier has some identical parts (for example carrier bandwidths, channel configuration information etc.), therefore adopt the mode of this increment configuration can save signaling consumption, concrete form is as shown in table 3 below:
Table 3
Mode three, MIB in the non-resident carrier, have among SIB1 and the SIB2 some information with on current carrier wave, work relevant, there is not these information, UE just can't work important comprising in these information: the configuration information of carrier frequency, carrier bandwidths, random access information, various channels, wireless resource configuration or the like on corresponding carrier wave.Therefore, except direct form (MIB, SIB1 and SIB2) with system information itself carries these information, these information can also be reconfigured, do as a whole the transmission, concrete form is as shown in table 4 below:
Table 4
Mode four, the necessary system information of the part that on the basis of mode three, embodies in increment (delta) mode, concrete form is as shown in table 5 below:
Table 5
UE is on resident carrier wave when resident like this, can obtain the system information of other non-resident carriers and preserve by reading SIB12 in the resident carrier system information, when base station activation UE carried out the CA transmission on other non-resident carriers, UE can directly utilize the system information of these non-resident carriers of preservation.
Step S303, UE initiate the RRC connection and set up process on resident carrier wave, for example connect with the base station on carrier wave 1.
Step S304, if next UE has big data quantity to need transmission, and the base station is judged and will be carried out the CA transmission on carrier wave 1 and carrier wave 4 to it, then the CA transmission is carried out by dedicated control signaling activation UE in the base station on carrier wave 1 and carrier wave 4, and promptly the described UE of indication adopts at least one non-resident carrier to carry out polymerization carrier wave CA transmission in the dedicated control signaling.In an embodiment of the present invention, described control signaling comprises L1/L2 dedicated control signaling and RRC dedicated control signaling, wherein, the L1 dedicated control signaling is meant the signaling of utilizing the PDCCH transmission, the L2 dedicated control signaling is meant the signaling of utilizing MAC CE transmission, and the RRC dedicated control signaling is meant that RRC connects reallocation message.
Step S305, UE carries out the CA transmission according to described dedicated control signaling with in the required link information of working that receives on non-resident carrier.The up-to-date carrier wave of preserving before for example UE utilizes 1 and the necessary system information (MIB, SIB1 and SIB2) of carrier wave 4 are carried out the CA transmission on these two carrier waves.
Embodiment two,
In this embodiment, the base station sends to UE by the RRC dedicated signaling with the UE required link information of working on non-resident carrier, its content of carrying in the RRC dedicated signaling is similar to embodiment one, the both MIB of portability non-resident carrier, SIB1 and SIB2, also can carry concrete information, perhaps adopt incremental mode etc.The scene of this embodiment two is identical with the scene of embodiment 1, has 5 carrier waves in the sub-district, and wherein carrier wave 1,2,3 can be resident, and carrier wave 4,5 can not be resident.Base station broadcast system information not on carrier wave 4 and 5 on carrier wave 1,2 and 3, is only broadcasted the complete system information of carrier wave separately.Need activate UE when the base station and on carrier wave 4 and/or carrier wave 5, carry out CA when transmission, by the special RRC signaling the necessary system information of carrier wave 4 and/or carrier wave 5 be issued UE again.The concrete form that the RRC dedicated signaling carries carrier wave 4 and/or carrier wave 5 necessary system informations is identical with embodiment 1, and only these information are to carry in system broadcasts among the embodiment 1, and in the present embodiment, these information are carried in the RRC dedicated signaling.
As shown in Figure 4, the method flow diagram for transmitting linkage information of non-resident carrier wave in the LTE-A system of the embodiment of the invention two may further comprise the steps:
Step S401, UE select a resident carrier wave of sub-district to carry out resident.Describe for example, suppose to have 5 carrier waves in the sub-district in this embodiment, wherein carrier wave 1,2,3 can be resident, carrier wave 4,5 can not be resident, its base station broadcast system information not on carrier wave 4 and 5, promptly do not broadcast the UE required link information of working on non-resident carrier, UE just can not be resident on carrier wave 4,5 like this.
Step S402, UE initiate the RRC connection and set up process on resident carrier wave, for example connect with the base station on carrier wave 1.
Step S403, if next UE has big data quantity to need transmission, and the base station is judged and will be carried out the CA transmission on carrier wave 1 and carrier wave 4 to it, then the CA transmission is carried out by dedicated control signaling activation UE in the base station on carrier wave 1 and carrier wave 4, the required link information of simultaneously UE being worked on carrier wave 4 sends to UE, also can all take place the link information of all non-resident carriers to UE certainly.Need to prove that in this embodiment, the RRC dedicated signaling of the link information of activation and transmission non-resident carrier can be same, also can divide two transmissions, and does not have fixing order between the two.
Step S404, UE carries out the CA transmission according to described dedicated control signaling with in the required link information of working that receives on non-resident carrier.For example, the necessary system information (MIB, SIB1 and SIB2) of the necessary system information (MIB, SIB1 and SIB2) of the up-to-date carrier wave of preserving before UE utilizes 1 and the carrier wave 4 that obtains in the special RRC signaling is carried out the CA transmission on these two carrier waves.
In above embodiment one and embodiment two, if the link information of working required on non-resident carrier changes, then the base station sends to UE by the RRC dedicated signaling with the link information that changes.Adopt this mode, can reduce the UE time delay of read system information again, improve the CA transmission performances.
As shown in Figure 5, be the system construction drawing of transmitting linkage information of non-resident carrier wave in the LTE-A system of the embodiment of the invention.This system comprises base station 100 and UE 200, wherein, comprises at least one non-resident carrier in the sub-district of base station 100, and does not broadcast the UE 200 required link information of working on non-resident carrier on this non-resident carrier.It is resident that UE 200 is used to select the resident carrier wave of sub-district to carry out, and receive the required link information of working on non-resident carrier that base station 100 sends on resident carrier wave.Base station 100 is used for being sent in the required link information of working on the non-resident carrier to the UE on resident carrier wave 200.
In one embodiment of the invention, UE 200 also is used to receive the dedicated control signaling that base station 100 sends, and carries out the CA transmission according to dedicated control signaling with in the required link information of working on non-resident carrier that receives.Base station 100 also is used for sending dedicated control signaling to UE 200, and wherein indication UE 200 adopts at least one non-resident carrier to carry out polymerization carrier wave CA transmission in the dedicated control signaling.
Wherein, UE 200 comprises resident selection module 210 and receiver module 220.Resident selection module 210 is used to select the resident carrier wave of sub-district to carry out resident.Receiver module 220 is used for receiving the required link information of working that base station 100 sends on non-resident carrier on resident carrier wave.
In one embodiment, UE 200 also comprises reallocation message receiver module 230 and CA transport module 240.Reallocation message receiver module 230 is used to receive the dedicated control signaling that base station 100 sends, and indication UE 200 adopts at least one non-resident carrier to carry out polymerization carrier wave CA transmission in this dedicated control signaling.CA transport module 240 is used for carrying out the CA transmission according to dedicated control signaling with in the required link information of working that receives on non-resident carrier.
Wherein, be received in the non-resident carrier required link information of working in the described system information that reallocation message receiver module 230 can be broadcasted from resident carrier wave.Reallocation message receiver module 230 also can be received in the required link information of working on the non-resident carrier by the RRC dedicated signaling.
Wherein, base station 100 comprises sending module 110 and reallocation message sending module 120.Sending module 110 is used for being sent in the required link information of working on the non-resident carrier to the UE on resident carrier wave 200.Reallocation message sending module 120 is used for sending dedicated control signaling to UE 100, and indication UE 200 adopts at least one non-resident carrier to carry out polymerization carrier wave CA transmission in this dedicated control signaling.
In one embodiment, sending module 110 is added on the required link information of working on the non-resident carrier in the system information of resident carrier wave, and broadcasts this system information in described resident carrier wave.In another embodiment, sending module 110 sends to UE 200 by the RRC dedicated signaling required link information of will working on non-resident carrier.
The present invention is not only by solving and avoid UE to reside in the problem of non-resident carrier not broadcasting link information that UE works required on the non-resident carrier on non-resident carrier, also by being transmitted in the mode of the required link information of working on the non-resident carrier, reduced the expense of system's paging on the one hand, also solved the problem that UE obtains the non-resident carrier system information on the other hand, system can be worked.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification that scope of the present invention is by claims and be equal to and limit to these embodiment.