CN101925082A - Method, system and equipment for determining and monitoring main carrier and indicating and activating carrier - Google Patents

Abstract

The invention discloses a method for determining a main carrier, which comprises the steps that: a network side selects at least one member carrier as a first candidate carrier, wherein the frequency band occupied by the first candidate carrier is a frequency band which can be supported by a terminal; the network side selects a carrier from the first candidate carrier as a main carrier of the terminal. By matching capacities of the selected main carrier and the terminal, the problem that the terminal monitoring is failed by using the main carrier is solved. The invention discloses a method, a system and equipment for monitoring the main carrier, and discloses a method, a system and equipment for indicating and activating the carrier and transmitting data by using the activated carrier.

Description

Determine, monitor method, system and equipment that main carrier and indication activate carrier wave

Technical field

The present invention relates to the communications field, relate in particular to a kind of definite main carrier and the method that main carrier is monitored, system and equipment, and a kind of the indication activated carrier wave and utilized method, system and the equipment that activates the carrier transmission data.

Background technology

Along with the development of communication system, more and more higher to the requirement of the quantity of transfer of data and speed, therefore, (Long term evaluation has proposed the evolution version LTE-A system of LTE on basis LTE) in the Long Term Evolution standard.The peak rate of LTE-A improves a lot than LTE, requires downstream rate to reach 1Gbps, and upstream rate reaches 500Mbps.Because traditional single-carrier system can't satisfy the demand of LTE-A transmission rate, therefore, in LTE-A, introduce carrier aggregation (Carrier Aggregation, CA) technology, promptly in same sub-district, a plurality of continuous or discrete carrier waves are concentrated in together, become the polymerization carrier system, a plurality of carrier waves in the carrier aggregation system can be Terminal Service simultaneously, so that up-downgoing required speed of when transmission to be provided.

Each carrier wave in the polymerization carrier system be called the sub-district member carrier (Component Carrier, CC).In order to keep the backwards compatibility to LTE R8 terminal, (physical resource block PRB) is no more than 110 to the Physical Resource Block of each member carrier.

As shown in Figure 1,4 carrier waves of having supposed the polymerization of LTE-A sub-district are respectively Carrier_1～Carrier_4, and the bandwidth of each carrier wave is not more than 20MHz.Transfer of data can be carried out with terminal simultaneously in the base station on these 4 carrier waves, to improve the transmission rate of LTE-A system.

As shown in Figure 2, be the frame structure schematic diagram of descending sub frame.Each descending sub frame is made up of seven OFDM symbols, and wherein: last is control character to four OFDM symbols, is used for bearing downlink control signaling, and the physical channel of bearing downlink control signaling is called the PDCCH channel.Remaining OFDM symbol is used for the bearing downlink data, and the physical layer channel of bearing downlink data is called the PDSCH channel.The control signaling comprises: to the schedule information of this descending sub frame and corresponding sub-frame of uplink and relevant HARQ information etc.

In the LTE system, terminal need be monitored descending carrier, determines whether to have distributed resource for this terminal on corresponding subframe by the control signaling that receives descending sub frame.If distributed resource, then terminal obtains the time-frequency domain position of resource according to the indication of dispatch, and utilizes this resource to carry out data transmit-receive.

Owing to what adopt in the LTE system is single-carrier technology, and each sub-district has only a downlink member carrier, and therefore, terminal only need be monitored a PDCCH and a PDSCH on the descending carrier.But for the LTE-A system, a sub-district possible configuration a plurality of member carriers, the LTE-A terminal may use a plurality of member carriers to carry out transfer of data (the member carrier quantity of Shi Yonging is not more than the member carrier quantity of configuration simultaneously) simultaneously, therefore, the monitoring mechanism of LTE system can't directly be applied in the LTE-A system.

Consider the particularity of LTE-A system configuration, now proposed a kind of new monitoring mechanism, require PDCCH channel and PDSCH channel on the special member carrier wave in the terminal monitoring carrier aggregation system.The special member carrier wave here is also referred to as the particular data transmission main carrier (UE-specific anchor CC) of terminal, for convenience, among the application the transfer of data main carrier is referred to as main carrier.When data transmit-receive need be carried out with terminal in the base station, the main carrier of monitoring by terminal sends control signaling to terminal, carry the sign that needs to monitor and be used for the member carrier of transfer of data in the control signaling that sends, needs described here are monitored and the member carrier that is used for transfer of data is referred to as to activate carrier wave.After terminal receives described control signaling,, start monitoring, and then utilize the member carrier of monitoring to finish and the communicating by letter of base station corresponding member carrier according to the sign that activates carrier wave.

In the monitoring mechanism of above-mentioned LTE-A system, also do not determine the relevant programme of the main carrier of terminal, if only from the polymerization carrier system, select a member carrier as main carrier simply arbitrarily, occur possibly because the problems such as monitoring failure that main carrier of selecting and terminal capability do not match and cause.Simultaneously, when having bursty data to transmit between terminal and the base station, a plurality of member carriers need be activated in the base station, and terminal is simultaneously in the enterprising line data transmitting-receiving of the member carrier of a plurality of activation; When data quantity transmitted reduced between terminal and the base station, member's number of activation need be reduced in the base station.Which but do not determine in the monitoring mechanism of existing LTE-A system to activate the number of carrier wave and select member carrier as the scheme that activates carrier wave yet.

Summary of the invention

The embodiment of the invention provides determines main carrier and the method, system and the network equipment that utilize definite main carrier to monitor, and the ability that solves main carrier and terminal does not match and causes monitoring the problem that may fail.

The embodiment of the invention also provides a kind of the indication to activate carrier wave and utilize method, system and the network equipment that activates the carrier transmission data, solve and the unmatched problem of terminal capability, and solved simultaneously because transmitted data amount changes the problem that causes activating the number of carriers variation.

A kind of method of definite main carrier, described method comprises:

Network side selects at least one member carrier as first candidate carrier, and wherein, the frequency range that described first candidate carrier takies is the frequency range that terminal can be supported;

Network side is selected the main carrier of a carrier wave as described terminal from described first candidate carrier.

A kind of main carrier is carried out monitor method, described method comprises:

Terminal receives the sign of the definite main carrier of network side;

Terminal is monitored the main carrier of the sign correspondence of described main carrier, and described main carrier is that the frequency range that network side can be supported according to terminal is determined.

A kind of network equipment, described network equipment comprises:

First candidate carrier is selected module, is used to select at least one member carrier as first candidate carrier, and wherein, the frequency range that described first candidate carrier takies is the frequency range that terminal can be supported;

Main carrier is selected module, is used for selecting the main carrier of a carrier wave as described terminal from described first candidate carrier.

A kind of system of monitoring system, described monitoring system comprises network equipment and terminal, wherein:

Network equipment, be used to select at least one member carrier as first candidate carrier, from described first candidate carrier, select the main carrier of a carrier wave as described terminal, and the sign of described main carrier sent to terminal, wherein, the frequency range that takies of described first candidate carrier is the frequency range that terminal can be supported;

Terminal is used for the main carrier of the sign correspondence of the described main carrier that receives is monitored.

A kind of method that activates carrier wave of indicating, described method comprises:

Network side selects at least one member carrier as second candidate carrier, and wherein, the frequency range that described second candidate carrier takies is the quantity that the frequency range that can support of terminal and the second candidate carrier quantity are not more than the member carrier that terminal can support;

Network side is the definite activation number of carriers that needs of data quantity transmitted as required, if the second candidate carrier quantity greater than the activation number of carriers of needs, then selects N carrier wave as activating carrier wave from second candidate carrier, described N equals to activate number of carriers; Otherwise, with second candidate carrier all as activating carrier wave;

The sign of the activation carrier wave that network side obtains to the indication of described terminal by main carrier, described main carrier is to determine according to the frequency range that terminal can be supported.

A kind of utilization activates the carrier transmission data method, and described method comprises:

Terminal receives the sign of the definite activation carrier wave of network side;

Terminal is monitored the activation carrier wave of the sign correspondence of described activation carrier wave, and the described activation carrier transmission data by monitoring, the quantity and the needs data quantity transmitted of the member carrier that described activation carrier wave is the frequency range that can support according to terminal of network side, can support are determined.

A kind of network equipment, described network equipment comprises:

Second candidate carrier is selected module, be used to select at least one member carrier as second candidate carrier, wherein, the frequency range that takies of described second candidate carrier is the quantity that the frequency range that can support of terminal and the second candidate carrier quantity are not more than the member carrier that terminal can support;

Activate the number of carriers determination module, be used for the activation number of carriers of the definite needs of data quantity transmitted as required;

Comparison module is used for the activation number of carriers of the comparison second candidate carrier quantity and needs;

Activate the carrier wave determination module, be used for when being the second candidate carrier quantity greater than the activation number of carriers of needs, selecting N carrier wave as the activation carrier wave at comparative result from second candidate carrier, described N equals to activate number of carriers; Otherwise, with second candidate carrier all as activating carrier wave;

Indicating module is used for the sign of the activation carrier wave that obtains to the indication of described terminal by main carrier, and described main carrier is to determine according to the frequency range that terminal can be supported.

A kind of data transmission system, described data transmission system comprises network equipment and terminal, wherein:

Network equipment, be used to select at least one member carrier as second candidate carrier, wherein, the frequency range that described second candidate carrier takies is the quantity that the frequency range that can support of terminal and the second candidate carrier quantity are not more than the member carrier that terminal can support, and

The definite activation number of carriers that needs of data quantity transmitted in the activation number of carriers of the second candidate carrier quantity greater than needs, selects N carrier wave as activating carrier wave from second candidate carrier as required, and described N equals to activate number of carriers; Otherwise, second candidate carrier all as activating carrier wave, and is sent the sign of the activation carrier wave that obtains by main carrier to described terminal, described main carrier is to determine according to the frequency range that terminal can be supported;

Terminal is used for the activation carrier wave of the sign correspondence of the described activation carrier wave that receives is monitored, and the described activation carrier transmission data by monitoring.

Because the frequency range that the present invention proposes terminal can be supported is as the condition of selecting main carrier, the frequency range that the main carrier that requirement is selected takies must be the frequency range that terminal can be supported, therefore, the main carrier of selecting and the capabilities match of terminal have avoided terminal to utilize main carrier to monitor the problem of failure.

In addition, because data quantity transmitted is as the condition of selecting to activate carrier wave between the frequency range that the present invention proposes again terminal can be supported, the member carrier quantity that terminal can be supported and network side and the terminal, the frequency range of the feasible activation carrier occupancy of selecting is the frequency range that terminal is supported, and the activation number of carriers of selecting is not more than the number of carriers that terminal can be supported, therefore, under the situation that the As soon as possible Promising Policy transfer of data requires, the activation number of carriers of selection is less, has avoided the wasting of resources.

Description of drawings

Fig. 1 is the schematic diagram of polymerization a plurality of member carriers in LTE-A sub-district in the prior art;

Fig. 2 is the frame structure schematic diagram of descending sub frame in the prior art;

Fig. 3 is a method schematic diagram of determining main carrier in the embodiment of the invention one;

The method schematic diagram that Fig. 4 monitors main carrier for terminal in the embodiment of the invention five;

Fig. 5 is the method schematic diagram that activates carrier wave in the embodiment of the invention six to the terminal indication;

Fig. 6 utilizes the method schematic diagram that activates the carrier transmission data in the embodiment of the invention ten;

Fig. 7 (a), Fig. 7 (b) and Fig. 7 (c) are the network equipment structural representation in the embodiment of the invention 11;

Fig. 8 is the system configuration schematic diagram of the monitoring system in the embodiment of the invention 12;

Fig. 9 (a), Fig. 9 (b) and Fig. 9 (c) are the network equipment structural representation in the embodiment of the invention 13;

Figure 10 is the data transmission system structural representation in the embodiment of the invention 14.

Embodiment

For realizing the object of the invention, the embodiment of the invention is being taken all factors into consideration under the situation of terminal capability, in a plurality of member carriers from multicarrier system, select one with the member carrier of terminal capability coupling main carrier, notice terminal real-time listening main carrier as terminal; When being after terminal is selected suitable activation carrier wave according to terminal capability, by the information of selected main carrier to terminal indication activation carrier wave, utilization then activates carrier wave and carries out transfer of data.Because the embodiment of the invention all fully takes into account the ability of terminal when selecting main carrier and activating carrier wave, therefore, the main carrier of selection and activation carrier wave can both correctly provide service for the transfer of data between network side and the terminal.

Below in conjunction with Figure of description the embodiment of the invention is described in detail.

The scheme that relates in various embodiments of the present invention can be applied in the system that uses the multi-carrier transmission data, as the LTE-A system, the network side/network equipment that relates to can be meant the base station of network side or other can implementation in the entity of correlation function.

Be example to be applied in the LTE-A system below, the scheme of the embodiment of the invention is described.

Embodiment one:

As shown in Figure 3, for determining the method schematic diagram of main carrier in the embodiment of the invention one, in the embodiment of the invention one, the ability of terminal comprises the frequency range that terminal can be supported, just terminal has the ability of the special frequency channel utilized transmission data.

The method of embodiment one may further comprise the steps:

Step 101: network side is determined the frequency range that terminal can be supported.

In the present embodiment, the frequency range of terminal support can be that continuous frequency range also can be a plurality of frequency ranges that disperse, and when the accessing terminal to network side, can report the band information that self can support to network side.

Step 102: network side is determined the frequency range that each member carrier takies in the polymerization carrier system.

Step 103: network side selects at least one member carrier as candidate carrier, and the frequency range that the candidate carrier of selecting takies is the frequency range that terminal can be supported.

The frequency range that frequency range that network side takies each member carrier and terminal can be supported compares, and the frequency range of selecting carrier occupancy is that the member carrier of the frequency range that can support of terminal is as candidate carrier.

Step 104: network side is selected the main carrier of a carrier wave as described terminal from candidate carrier.

If the candidate carrier of selecting is a plurality of, then can therefrom choose a main carrier wantonly in this step as terminal in step 103.If the candidate carrier of selecting in step 103 is one, a candidate carrier then will selecting in the step is as the main carrier of terminal.

In the scheme of present embodiment one, the ability of terminal can also comprise the quantity of the member carrier that terminal can be supported, then after step 103, and before the step 104, the method for embodiment one is further comprising the steps of:

Step 103a: network side is selected once more to candidate carrier, and the candidate carrier quantity after selecting once more is not more than the quantity of the member carrier that terminal can support.

Then step 104 will select a carrier wave as main carrier from the candidate carrier after step 103a selects once more.

Increased in the scheme of step 103a, the member carrier quantity that frequency range that terminal can be supported and terminal can be supported is all as the condition of selecting candidate carrier.Ability according to terminal is selected suitable candidate carrier, the frequency range that whole candidate carrier that assurance is selected take all is the frequency range that terminal can be supported, make the final main carrier of determining to have avoided not causing the problem of data transmission fails correctly for transmitting data between terminal and network side because the frequency range of frequency range that main carrier takies and terminal support matches.

Embodiment two:

The embodiment of the invention two is on the basis of embodiment one, with the load of candidate carrier as the condition of selecting main carrier, make the main carrier load of selection less, guarantee that the main carrier of selecting can satisfy the business need of terminal, and make the load balancing of each member carrier in the polymerization carrier system.

The scheme of embodiment two mainly may further comprise the steps:

The first step: network side determines that at least one member carrier is as candidate carrier.

The candidate carrier of this step can be determined according to the scheme of step 101～step 103 record; Also can determine according to the scheme of step 101～103a record; Can also determine by other modes, for example: all regard the member carrier in the polymerization carrier system as candidate carrier.

Determine candidate carrier according to the scheme of step 101～step 103 record in the present embodiment two.

Second step: network side is determined the terminal quantity of each candidate carrier correspondence, and described terminal quantity is with the candidate carrier of the correspondence quantity as the terminal of main carrier.

In the residing LTE-A of the present invention system, have a plurality of member carriers and a plurality of LTE-A terminal, network side will be determined corresponding main carrier for each LTE-A terminal, that is to say, T at a time, a member carrier may become the main carrier of one or more LTE-A terminals.Because the LTE-A terminal is wanted the PDCCH channel and the PDSCH channel of real-time listening main carrier, descending control signaling and downlink data by the transmission of main carrier bearer network side direction terminal, therefore, the terminal quantity of candidate carrier correspondence is many more, represents that the load of this candidate carrier is big more.

Illustrate the method for the terminal quantity of determining the candidate carrier correspondence below.

Suppose, there are member carrier _ 1～member carrier _ 4 in the LTE-A system, LTE-A_1 terminal～LTE-A_5 terminal, at T constantly, the main carrier of LTE-A_1 terminal is member carrier _ 1, the main carrier of LTE-A_2 terminal also is member carrier _ 1, the main carrier of LTE-A_3 terminal is member carrier _ 2, the main carrier of LTE-A_4 terminal is member carrier _ 3, if currently determine main carrier for the LTE-A_5 terminal, and member carrier _ 1～member carrier _ 4 all are candidate carrier, the terminal quantity of then determining member carrier _ 1 correspondence is _ 2, and the terminal quantity of member carrier _ 2 and member carrier _ 3 correspondences is 1, and the terminal quantity of member carrier _ 4 correspondences is 0.

The 3rd step: network side sorts to candidate carrier according to the ascending order of the terminal quantity of correspondence, selects the candidate carrier of corresponding terminal quantity less than first set point.

First set point in this step can rule of thumb be worth definite, and the terminal quantity of the candidate carrier correspondence that assurance is picked out is less; First set point also can determine according to the average load of each candidate carrier, with the mean value of the terminal quantity of each candidate carrier correspondence as first set point.

The 4th step: select one as main carrier in the candidate carrier that network side is picked out from the 3rd step.

More preferably, network side selects the candidate carrier of corresponding terminal quantity minimum as main carrier.

By the scheme of the embodiment of the invention two, definite main carrier not only can with the capabilities match of terminal, the load of main carrier simultaneously is relatively low, makes main carrier can satisfy the business need of terminal well; Simultaneously, the preferential load balancing of selecting the lower candidate carrier of load can make each member carrier in the carrier aggregation system as main carrier, it is excessive to avoid occurring the excessive member carrier operating pressure that causes of some member carrier load, avoids the too small wasting of resources that causes of some carrier load simultaneously.

Embodiment three:

The embodiment of the invention three is on the basis of embodiment one, and as the condition of selecting main carrier, candidate carrier is as main carrier preferably for the selective channel quality with channel quality, and the transmission quality when guaranteeing terminal and network side by main carrier transmission data is higher.

The scheme of embodiment three mainly may further comprise the steps:

The first step: network side determines that at least one member carrier is as candidate carrier.

The candidate carrier of this step can be determined according to the scheme of step 101～step 103 record; Also can determine according to the scheme of step 101～103a record; Can also determine by other modes, for example: all regard the member carrier in the polymerization carrier system as candidate carrier.

Determine candidate carrier according to the scheme of step 101～step 103 record in the present embodiment three.

Second step: network side is determined the channel quality parameter value of each candidate carrier.

The channel quality that relates in the various embodiments of the present invention is meant the channel quality of terminal on certain member carrier, signal to noise ratio just, and the unit of its parameter value can represent with dB.

The channel quality parameter value of terminal on member carrier measured by terminal and reported to the base station.

The 3rd step: network side sorts to candidate carrier according to the descending order of channel quality parameter value, selects the candidate carrier of channel quality parameter value greater than second set point.

Second set point in this step can rule of thumb be worth definite, and the channel quality of the candidate carrier that assurance is picked out is better; Second set point also can determine according to the average channel quality of each candidate carrier, with the mean value of each candidate carrier channel quality parameter as second set point.

The 4th step: select one as main carrier in the candidate carrier that network side is picked out from the 3rd step.

More preferably, the candidate carrier of network side selective channel mass parameter value maximum is as main carrier.

By the scheme of the embodiment of the invention three, definite main carrier not only can with the capabilities match of terminal, simultaneously the channel quality of main carrier is better relatively, can be well provides service for the data transmission procedure of terminal and network side.

Embodiment four:

The embodiment of the invention four comprehensive embodiment two and embodiment three schemes, with the load of candidate carrier and channel quality as the condition of selecting main carrier, the relatively low and channel quality of load of comprehensive selection preferably candidate carrier as main carrier.

The scheme of embodiment four mainly may further comprise the steps:

The first step: network side determines that at least one member carrier is as candidate carrier.

The candidate carrier of this step can be determined according to the scheme of step 101～step 103 record; Also can determine according to the scheme of step 101～103a record; Can also determine by other modes, for example: all regard the member carrier in the polymerization carrier system as candidate carrier.

Determine candidate carrier according to the scheme of step 101～step 103 record in the present embodiment three.

Second step: network side is determined the terminal quantity of each candidate carrier correspondence and the channel quality parameter value of each candidate carrier.

In this step, the scheme of determining the quantity of candidate carrier and channel quality parameter value is identical with scheme among embodiment two and the embodiment three respectively, and the sequencing of the quantity of definite candidate carrier and channel quality parameter value does not limit.

The 3rd step: network side is a parameter with the terminal quantity and the channel quality parameter value of correspondence, determines the weighted value of each candidate carrier.

In this step, the candidate carrier weighted value is calculated by formula (1) and is determined:

${\mathrm{PRI}}_i=\mathrm{<figure-callout\; id="1"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}1*\frac{X}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{Y}---\left(1\right)$

Wherein, PRI _iThe weighted value of representing i candidate carrier, 1≤i≤candidate carrier quantity; P1, P2 represent weighted factor, P1+P2=1; UE_NUM_ANCHOR_CC _iThe terminal quantity of representing i candidate carrier correspondence; CQI_CC _iThe channel quality parameter value of representing i candidate carrier; X and Y are fixed value.

Further, the value of X can be maximum terminal quantity corresponding in each candidate carrier, and the value of Y can be the minimum channel mass parameter value in each candidate carrier, and then formula (1) can be deformed into formula (2):

${\mathrm{PRI}}_i=\mathrm{<figure-callout\; id="1"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}1*\frac{\mathrm{MAX}(\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_\mathrm{CC})}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{\mathrm{MAX}(\mathrm{CQI}\_\mathrm{CC})}---\left(2\right)$

Wherein: MAX (UE_NUM_ANCHOR_CC) represents maximum terminal quantity corresponding in each candidate carrier, and MAX (CQI_CC) represents minimum channel mass parameter value in each candidate carrier.

Load according to candidate carrier is different to the importance of selecting main carrier with channel quality, can adjust the size of P1 and P2 according to actual needs.Distinguishingly, when P1 is 0, when selecting main carrier, expression do not consider the load of candidate carrier, identical with the scheme of embodiment three; When P2 is 0, when selecting main carrier, expression do not consider the channel quality of candidate carrier, identical with the scheme of embodiment two.

The 4th step: network side sorts to candidate carrier according to the descending order of weighted value, selects the candidate carrier of weighted value greater than the 3rd set point.

The 3rd set point in this step can rule of thumb be worth definite, the load of the candidate carrier that assurance is picked out and the needs that channel quality can both satisfy system; The 3rd set point also can determine according to the average weighted value of each candidate carrier, with the mean value of each candidate carrier weighted value as the 3rd set point.

The 5th step: select one as main carrier in the candidate carrier that network side is picked out from the 4th step.

More preferably, network side selects the candidate carrier of weighted value maximum as main carrier.

Scheme by the embodiment of the invention four, with the load of terminal capability, candidate carrier and the channel quality comprehensive consideration of candidate carrier, select candidate carrier that everyway can satisfy system requirements as main carrier, the main carrier of selection can be to the full extent stably as the bearer context for data transmission of terminal and network side.

The embodiment of the invention one to embodiment four is taken all factors into consideration the selection main carrier with the load of terminal capability, candidate carrier and the channel quality of candidate carrier respectively, the channel quality that the load that the embodiment of the invention also is not limited to only to utilize candidate carrier as the condition of selecting main carrier, only utilizes candidate carrier as the condition of selecting main carrier or utilize the load of candidate carrier and channel quality as the condition of selecting main carrier.

The embodiment of the invention also is not limited to the influential parameter of other transfer of data to terminal and network side as the condition of selecting main carrier, for example: with the co-channel interference of minizone as the condition of selecting main carrier, perhaps the condition of the one or more combinations in the channel quality of the load of terminal capability, candidate carrier and candidate carrier and the co-channel interference of minizone are combined, become the condition of selecting main carrier.

The minizone co-channel interference that relates in the various embodiments of the present invention is meant: neighbor cell uses the interference that causes as main carrier with when activating carrier wave with carrier wave frequently, for fear of co-channel interference, neighbor cell should be avoided using with carrier wave frequently as main carrier and activation carrier wave.For example: sub-district 1,2,3 is a cluster, shared sixty percent Yuan carrier wave, and then sub-district 1 can select carrier wave 1 as main carrier, and carrier wave 1 and carrier wave 4 are as activating carrier wave; Sub-district 2 can select carrier wave 2 as main carrier, and carrier wave 2 and carrier wave 5 are as activating carrier wave; Sub-district 3 can select carrier wave 3 as main carrier, and carrier wave 3 and carrier wave 6 are as activating carrier wave, and like this, the main carrier of each cell selecting is different with the activation carrier wave frequently, has avoided co-channel interference.

Embodiment five:

After determining the main carrier of terminal by embodiment one to embodiment four arbitrary scheme, network side will send to corresponding terminal with the sign of the main carrier determined, and the carrier wave of the sign correspondence that will receive by terminal comes real-time listening as the transfer of data main carrier.The method that the embodiment of the invention five provides a kind of terminal that main carrier is monitored as shown in Figure 4, said method comprising the steps of:

Step 201: after the frequency range that network side can be supported according to terminal is determined main carrier, the sign of the main carrier determined is sent to terminal.

In this step, network side is by Radio Resource control (Radio Resource Control, RRC) signaling sends the sign of main carrier to terminal, the sign of main carrier can be the numbering of main carrier in the polymerization carrier system, and the embodiment of the invention also is not limited to the sign that other can unique expression main carrier.

Step 202: after terminal receives sign by the RRC signaling, determine the corresponding main carrier of described sign, and described main carrier is monitored.

The PDCCH channel of terminal real-time listening main carrier and PDSCH channel have determined whether to this terminal distribution resource by the control signaling that receives descending sub frame.If distributed resource, then terminal just is identified for transmitting the activation carrier information of data according to the time-frequency domain position of the indication acquisition resource of dispatch.

Embodiment six:

When having bursty data to transmit between terminal and the network side, perhaps when data quantity transmitted between terminal and the network side reduces, be used to transmit the corresponding adjustment of activation carrier wave number needs of data between terminal and the network side.The embodiment of the invention six has proposed to utilize the main carrier that arbitrary scheme is determined among the embodiment one to embodiment four to indicate the method that activates carrier wave to terminal, as shown in Figure 5, said method comprising the steps of:

Step 301: network side is determined the quantity of the member carrier that frequency range that terminal can be supported and terminal can be supported.

In the present embodiment, the ability of terminal comprises the quantity of frequency range that terminal can be supported and the member carrier that can support, and terminal can report the ability of self to network side when the access network side.

Step 302: network side is determined the frequency range that each member carrier takies in the polymerization carrier system.

Step 303: network side selects at least one member carrier as candidate carrier, and the frequency range that the candidate carrier of selecting takies is the frequency range that terminal can be supported, and the candidate carrier quantity of selecting is not more than the quantity of the member carrier that terminal can support.

In the scheme of embodiment one to embodiment four, put down in writing the feature of selecting candidate carrier, also relate to the feature of selecting candidate carrier in the present embodiment, in order to distinguish different candidate carrier, the candidate carrier of selecting in the time of will being used for determining main carrier is referred to as first candidate carrier, and the candidate carrier of selecting when being used for determining to activate carrier wave is referred to as second candidate carrier.

Step 304: network side is determined the activation number of carriers of needs as required with the data volume of terminal transmission.

Network side can be according to the throughput of each candidate carrier and the data total amount of needs transmission, definite activation number of carriers that needs, and the activation carrier wave that assurance is determined can carry and need data quantity transmitted.

Step 305: network side compares candidate carrier quantity of selecting and the activation number of carriers that needs, if the candidate carrier quantity of selecting is not more than the activation number of carriers that needs, then with the candidate carrier selected all as the activation carrier wave, and jump to step 307; Otherwise, execution in step 306.

Step 306: select N carrier wave as activating carrier wave from candidate carrier, described N equals the activation number of carriers of needs.

Step 307: network side is indicated the sign of the activation carrier wave that obtains to terminal by main carrier.

In this step, the main carrier of the sign of bearing activation carrier wave can be determined by embodiment one to embodiment four arbitrary scheme.

The signaling that network side is used to transmit the sign that activates carrier wave includes but not limited to following several: RRC signaling, L1/L2 signaling or media access control layer (MAC) signaling, wherein, the L1/L2 signaling is meant 1/ layer of 2 control of layer signaling, just a PDCCH information transmitted.

In the scheme of embodiment six, network side is an alternative condition with the frequency range ability of terminal support, carry out Preliminary screening to activating carrier wave, guarantee to activate the capabilities match of carrier wave and terminal, avoid since activate carrier wave and terminal capability do not match cause activate carrier wave can't be correctly for carrying the problem of the data of transmitting between terminal and the network side; Simultaneously, network side is that condition is carried out more accurate screening to the number that activates carrier wave with the member carrier quantity of terminal support with needing data quantity transmitted also, make the activation carrier wave number of selecting under the situation that terminal can be supported, can either carry needs data quantity transmitted, and reduces the wasting of resources again.

Embodiment seven:

The embodiment of the invention seven further contemplates on the basis of embodiment six, in the activation number of carriers of the candidate carrier quantity of selecting greater than needs, in the time of need from candidate carrier, selecting N carrier wave as the activation carrier wave, can be that condition is selected N activation carrier wave with the channel quality of carrier wave.

The scheme of embodiment seven is as follows:

The first step: network side is determined candidate carrier, and the activation number of carriers of determining needs as required with the data volume of terminal transmission.

Second step: candidate carrier quantity and the activation number of carriers that needs are compared, determine the activation number of carriers of candidate carrier quantity greater than needs.

The first step of present embodiment seven and second step can be realized by step 301 to step 305.

The 3rd step: network side is determined the channel quality parameter value of each candidate carrier.

The 4th step: network side selects N candidate carrier as activating carrier wave from candidate carrier, and wherein: the channel quality parameter value of the N of a selection candidate carrier is greater than the channel quality parameter value of unselected candidate carrier.

The concrete selection mode of this step can for:

Candidate carrier is sorted according to the descending order of channel quality parameter value by network side, the candidate carrier that will come top n again is as activating carrier wave.It is the mode that condition is selected N candidate carrier with the channel quality that the embodiment of the invention also is not limited to other, makes that N the candidate carrier of selecting is channel quality parameter candidate carrier preferably.

The 5th step: the sign of the activation carrier wave that network side will be determined sends to terminal by main carrier.

Scheme by embodiment seven, network side is when selecting N activation carrier wave, with the channel quality of candidate carrier to be selected as alternative condition, select the best N of a channel quality candidate carrier as activating carrier wave, make the activation carrier wave picked out can be well provide service for the transfer of data of network side and terminal room.

Embodiment eight:

The embodiment of the invention eight further contemplates on the basis of embodiment six, in the activation number of carriers of the candidate carrier quantity of selecting greater than needs, in the time of need from candidate carrier, selecting N carrier wave as the activation carrier wave, can be that condition is selected N activation carrier wave with the load of carrier wave.

The scheme of embodiment eight is as follows:

The first step: network side is determined candidate carrier, and the activation number of carriers of determining needs as required with the data volume of terminal transmission.

Second step: candidate carrier quantity and the activation number of carriers that needs are compared, determine the activation number of carriers of candidate carrier quantity greater than needs.

The first step of present embodiment eight and second step can be realized by step 301 to step 305.

The 3rd step: network side is determined the terminal quantity of each candidate carrier correspondence, and described terminal quantity is with the candidate carrier of the correspondence quantity as the terminal of main carrier.

The 4th step: network side selects N candidate carrier as activating carrier wave from candidate carrier, and wherein: the terminal quantity of the N of selection candidate carrier correspondence is less than the terminal quantity of unselected candidate carrier correspondence.

The specific implementation of this step can for:

Network side sorts to candidate carrier according to the ascending order of the terminal quantity of correspondence, and the candidate carrier that will come top n is as activating carrier wave.It is the mode that condition is selected N candidate carrier with the load that the embodiment of the invention also is not limited to other, makes that N the candidate carrier of selecting is the lower candidate carrier of load.

Scheme by embodiment eight, network side is when selecting N activation carrier wave, with the load of candidate carrier to be selected as alternative condition, select the minimum N of a load candidate carrier as activating carrier wave, make the activation carrier wave of picking out have enough abilities to offer transfer of data between terminal and network side.

Embodiment nine:

The scheme of the embodiment of the invention nine comprehensive embodiment seven and embodiment eight is that condition is selected N and activated carrier wave with the channel quality of carrier wave and load.

The scheme of embodiment nine is as follows:

The first step: network side is determined candidate carrier, and the activation number of carriers of determining needs as required with the data volume of terminal transmission.

Second step: candidate carrier quantity and the activation number of carriers that needs are compared, determine the activation number of carriers of candidate carrier quantity greater than needs.

The first step of present embodiment nine and second step can be realized by step 301 to step 305.

The 3rd step: network side is determined the channel quality parameter value of each candidate carrier and corresponding terminal quantity, and described terminal quantity is with the candidate carrier of the correspondence quantity as the terminal of main carrier.

In this step, network side is determined newly not limit to the sequencing of mass parameter with the terminal quantity of correspondence.

The 4th step: network side is a parameter with the terminal quantity and the channel quality parameter value of correspondence, determines the weighted value of each candidate carrier.

In this step, the candidate carrier weighted value is calculated by formula (1) and is determined:

${\mathrm{PRI}}_i=\mathrm{<figure-callout\; id="1"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}1*\frac{X}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{Y}---\left(1\right)$

Wherein, PRI _iThe weighted value of representing i candidate carrier, 1≤i≤candidate carrier quantity; P1, P2 represent weighted factor, P1+P2=1; UE_NUM_ANCHOR_CC _iThe terminal quantity of representing i candidate carrier correspondence; CQI_CC _iThe channel quality parameter value of representing i candidate carrier; X and Y are fixed value.

Further, the value of X can be maximum terminal quantity corresponding in each candidate carrier, and the value of Y can be the minimum channel mass parameter value in each candidate carrier, and then formula (1) can be deformed into formula (2):

${\mathrm{PRI}}_i=\mathrm{<figure-callout\; id="1"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}1*\frac{\mathrm{MAX}(\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_\mathrm{CC})}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{\mathrm{MAX}(\mathrm{CQI}\_\mathrm{CC})}---\left(2\right)$

Wherein: MAX (UE_NUM_ANCHOR_CC) represents maximum terminal quantity corresponding in each candidate carrier, and MAX (CQI_CC) represents minimum channel mass parameter value in each candidate carrier.

Load according to candidate carrier is different to the importance of selecting the activation ripple with channel quality, can adjust the size of P1 and P2 according to actual needs.Distinguishingly, when P1 is 0, when selecting to activate carrier wave, expression do not consider the load of candidate carrier, identical with the scheme of embodiment seven; When P2 is 0, when selecting to activate ripple, expression do not consider the channel quality of candidate carrier, identical with the scheme of embodiment eight.

The 5th step: network side is selected N candidate carrier from candidate carrier, wherein, the weighted value of the N of a selection candidate carrier is greater than the weighted value of unselected candidate carrier.

The specific implementation of this step can for:

Network side sorts to candidate carrier according to the descending order of weighted value, will come the candidate carrier of top n as activating carrier wave.It is the mode that condition is selected N candidate carrier with the weighted value that the embodiment of the invention also is not limited to other, makes that N candidate carrier of selection is the lower and channel quality of load candidate carrier preferably.

In arbitrary scheme of the embodiment of the invention six to embodiment nine, comprise the main carrier that is used to transmit the sign that activates carrier wave in the final activation carrier wave of determining.

The condition that the selection that relates in the scheme of the embodiment of the invention six to embodiment nine activates carrier wave comprises following several:

Need the channel quality of data quantity transmitted, candidate carrier and the load of candidate carrier between member carrier quantity, network side and the terminal of the frequency range of terminal support, terminal support.The embodiment of the invention also is not limited to other schemes that above-mentioned alternative condition combination back is selected the activation carrier wave.

The embodiment of the invention also is not limited to the influential parameter of other transfer of data to terminal and network side as the condition of selecting to activate carrier wave, for example: the condition that the co-channel interference of minizone is activated carrier wave as selection, perhaps the condition of the one or more combinations in the channel quality of the load of terminal capability, transmitted data amount, candidate carrier and candidate carrier and the co-channel interference of minizone are combined, become the condition of selecting to activate carrier wave.

Embodiment ten:

After the sign notice terminal of the activation carrier wave that network side will be determined, network side and terminal just can be carried out the transmission of data and control information by the carrier wave that is in state of activation.The embodiment of the invention ten provides a kind of method that activates the carrier transmission data of utilizing, and as shown in Figure 6, said method comprising the steps of:

Step 401: terminal receives the sign of the definite activation carrier wave of network side.

The PDCCH channel of terminal real-time listening main carrier and PDSCH channel when the RRC signaling that receives the sign of carrying the activation carrier wave, L1/L2 signaling or media access control layer (MAC) signaling, prepare to carry out follow-up data transmission procedure.

The sign of the activation carrier wave that terminal receives can be determined by arbitrary scheme among the embodiment six to embodiment nine.

Step 402: terminal is monitored the activation carrier wave of the sign correspondence of described activation carrier wave, and the described activation carrier transmission data by monitoring.

Receive before the sign that activates carrier wave in terminal, terminal may be monitored some member carrier, has promptly activated some member carrier.The sign of the activation carrier wave that terminal will receive compares with the sign of the member carrier that has activated, if there is the also unactivated situation of activation carrier wave of the sign correspondence of the activation carrier wave that receives, then activate corresponding activation carrier wave, this activation carrier transmission data are monitored and utilized to this activation carrier wave; If exist the sign of the member carrier that has activated not to be included in the interior situation of sign of the activation carrier wave that receives, then stop to monitor the member carrier that has activated, be about to the member carrier deexcitation that the network side failed call activates.

The indication that network side requires terminal to activate carrier wave is to be mutually related, and such as only requiring the terminal monitoring main carrier constantly at T1, data volume increased afterwards, also needed to increase the member carrier of monitoring constantly at T2; Perhaps, require terminal monitoring main carrier and other member carrier constantly at T1, data volume reduced afterwards, only needed to monitor main carrier constantly at T2.The sign of terminal according to the activation carrier wave that receives activates member carrier or the scheme of deexcitation below by illustrating.

The current carrier wave that needs to activate is member carrier _ 1, member carrier _ 2 and member carrier _ 3 if network side is determined terminal, and definite terminal has activated member carrier _ 1 and member carrier _ 2, then network side sends to terminal with the sign of member carrier _ 3, requires terminal to activate member carrier _ 3.After terminal is received activation indication information from network side, activate member carrier _ 3.

The current carrier wave that needs to activate is member carrier _ 1 if network side is determined terminal, and determine that terminal has activated member carrier _ 1, member carrier _ 2 and member carrier _ 3, then network side sends to terminal with the sign of member carrier _ 2 and member carrier _ 3, requires terminal deexcitation member carrier _ 2 and member carrier _ 3.Terminal receives from after the deexcitation of the network side indication, and the sign of determining member carrier _ 2 and member carrier _ 3 is that terminal does not need to activate but has been in the sign of the member carrier of state of activation, and then terminal is to deexcitation member carrier _ 2 and member carrier _ 3.

Embodiment 11:

The embodiment of the invention 11 provides a kind of network equipment that belongs under the same inventive concept with embodiment one to embodiment four, shown in Fig. 7 (a), Fig. 7 (b) and Fig. 7 (c), described network equipment comprises: first candidate carrier selects module 11 and main carrier to select module 12, wherein: first candidate carrier selects module 11 to be used to select at least one member carrier as first candidate carrier, wherein, the frequency range that takies of described first candidate carrier is the frequency range that terminal can be supported; Main carrier selects module 12 to be used for selecting the main carrier of a carrier wave as described terminal from described first candidate carrier.

Described first candidate carrier selects module 11 also to be used for first candidate carrier of determining is selected once more, and the first candidate carrier quantity after selecting once more is not more than the quantity of the member carrier that terminal can support; Then described main carrier selects module 12 to be further used for selecting the main carrier of a carrier wave as described terminal first candidate carrier after selecting once more.

Network equipment in the embodiment of the invention 11 can also further screen first candidate carrier according to different conditions, is illustrated respectively below.

Shown in Fig. 7 (a), described network equipment also comprises terminal quantity determination module 13, is used for determining the terminal quantity of each first candidate carrier correspondence, and described terminal quantity is with first candidate carrier of the correspondence quantity as the terminal of main carrier; Described main carrier selects module 12 to be further used for selecting a carrier wave as described main carrier from first candidate carrier of terminal quantity less than first set point of correspondence.

Shown in Fig. 7 (b), described network equipment also comprises channel quality determination module 14, is used for determining the channel quality parameter value of each first candidate carrier; Described main carrier selects module 12 to be further used for from the channel quality parameter value greater than selecting a carrier wave as described main carrier the candidate carrier of second set point.

Shown in Fig. 7 (c), described network equipment also comprises terminal quantity determination module 15, is used for determining the terminal quantity of each first candidate carrier correspondence, and described terminal quantity is with first candidate carrier of the correspondence quantity as the terminal of main carrier; Channel quality determination module 16 is used for determining the channel quality parameter value of each first candidate carrier; Weighted value determination module 17 is used for determining according to following formula (1) weighted value of each candidate carrier:

${\mathrm{PRI}}_i=\mathrm{<figure-callout\; id="1"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}1*\frac{X}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{Y}---\left(1\right)$

Wherein, PRI _iThe weighted value of representing i first candidate carrier, the 1≤i≤first candidate carrier quantity; P1, P2 represent weighted factor, P1+P2=1; UE_NUM_ANCHOR_CC _iThe terminal quantity of representing i the first candidate carrier correspondence; CQI_CC _iThe channel quality parameter value of representing i candidate carrier; X and Y are fixed value; Described main carrier selects module 12 to be further used for from weighted value greater than selecting the main carrier of a carrier wave as described terminal first candidate carrier of the 3rd set point.

Embodiment 12:

The embodiment of the invention 12 provides a kind of and embodiment one to embodiment four to belong to the system of the monitoring system under the same inventive concept, as shown in Figure 8, the system of described monitoring system comprises network equipment 21 and terminal 22, wherein: network equipment 21 is used to select at least one member carrier as first candidate carrier, from described first candidate carrier, select the main carrier of a carrier wave as described terminal, and the sign of described main carrier sent to terminal, wherein, the frequency range that takies of described first candidate carrier is the frequency range that terminal can be supported; Terminal 22 is used for the main carrier of the sign correspondence of the described main carrier that receives is monitored.

Network equipment 21 sends the sign of main carrier to terminal 22 by the RRC signaling.

Embodiment 13:

The embodiment of the invention 13 provides a kind of network equipment that belongs under the same inventive concept with embodiment six to embodiment nine, as Fig. 9 (a), shown in Fig. 9 (b) and Fig. 9 (c), described network equipment comprises: second candidate carrier is selected module 31, activate number of carriers determination module 32, comparison module 33, activate carrier wave determination module 34 and indicating module 35, wherein: second candidate carrier selects module 31 to be used to select at least one member carrier as second candidate carrier, wherein, the frequency range that takies of described second candidate carrier is the quantity that the frequency range that can support of terminal and the second candidate carrier quantity are not more than the member carrier that terminal can support; Activate number of carriers determination module 32 and be used for the activation number of carriers of the definite needs of data quantity transmitted as required; Comparison module 33 is used for the activation number of carriers of comparison second candidate carrier quantity and needs; Activate carrier wave determination module 34 and be used for when being the second candidate carrier quantity greater than the activation number of carriers of needs, selecting N carrier wave as the activation carrier wave at comparative result from second candidate carrier, described N equals to activate number of carriers; Otherwise, with second candidate carrier all as activating carrier wave; Indicating module 35 is used for the sign of the activation carrier wave that obtains to the indication of described terminal by main carrier, and described main carrier is to determine according to the frequency range that terminal can be supported.

Network equipment in the embodiment of the invention 13 can also further screen second candidate carrier according to different conditions, is illustrated respectively below.

Shown in Fig. 9 (a), activate carrier wave determination module 34 and comprise that channel quality determines the submodule 401 and the first chooser module 402, wherein: channel quality determines that submodule 401 is used for determining the channel quality parameter value of each second candidate carrier; The first chooser module 402 is used in the second candidate carrier quantity during greater than the activation number of carriers of needs, select N second candidate carrier as activating carrier wave from second candidate carrier, wherein the channel quality parameter value of the N of Xuan Zeing second candidate carrier is greater than the channel quality parameter value of unselected second candidate carrier; Otherwise, with second candidate carrier all as activating carrier wave.

Activate carrier wave determination module 34 and can further include first order submodule 403, be used for determining that according to channel quality the descending order of channel quality parameter value that submodule 401 is determined sorts to second candidate carrier; Then top n second candidate carrier that further first order submodule 403 can be determined of the first chooser module 402 is as activating carrier wave.

Shown in Fig. 9 (b), activate carrier wave determination module 34 and comprise the terminal quantity submodule 404 and the second chooser module 405, wherein: terminal quantity submodule 404 is used for determining the terminal quantity of each second candidate carrier correspondence, and described terminal quantity is with second candidate carrier of the correspondence quantity as the terminal of main carrier; The second chooser module 405 is used in the second candidate carrier quantity during greater than the activation number of carriers of needs, select N second candidate carrier as activating carrier wave from second candidate carrier, wherein the terminal quantity of the N of Xuan Zeing the second candidate carrier correspondence is less than the terminal quantity of the unselected second candidate carrier correspondence; Otherwise, with second candidate carrier all as activating carrier wave.

Activate carrier wave determination module 34 and can further include second order submodule 406, the ascending order of terminal quantity that is used for the correspondence determined according to terminal quantity submodule 404 sorts to second candidate carrier; Then top n second candidate carrier that further second order submodule 406 can be determined of the second chooser module 405 is as activating carrier wave.

Shown in Fig. 9 (c), activate carrier wave determination module 34 and comprise that terminal quantity submodule 407, channel quality determine that submodule 408, weighted value determine submodule 409 and the 3rd chooser module 410, wherein: terminal quantity submodule 407 is used for determining the terminal quantity of each second candidate carrier correspondence, and described terminal quantity is with second candidate carrier of the correspondence quantity as the terminal of main carrier; Channel quality determines that submodule 408 is used for determining the channel quality parameter value of each second candidate carrier; Weighted value determines that submodule 409 is used for determining according to following formula the weighted value of each second candidate carrier:

${\mathrm{PRI}}_i=\mathrm{<figure-callout\; id="1"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}1*\frac{X}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="H2009100865674E0000011.png"\; state="\{\{state\}\}">P</figure-callout>}2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{Y}$

Wherein, PRI _iThe weighted value of representing i second candidate carrier, the 1≤i≤second candidate carrier quantity; P1, P2 represent weighted factor, P1+P2=1; UE_NUM_ANCHOR_CC _iThe terminal quantity of representing i candidate carrier correspondence; CQI_CC _iThe channel quality parameter value of representing i second candidate carrier; X and Y are fixed value; The 3rd chooser module 410 is used in the second candidate carrier quantity during greater than the activation number of carriers of needs, select N second candidate carrier as activating carrier wave from second candidate carrier, wherein the weighted value of the N of Xuan Zeing second candidate carrier is greater than the weighted value of the unselected second candidate carrier correspondence; Otherwise, with second candidate carrier all as activating carrier wave.

Activate carrier wave determination module 34 and can further include the 3rd arrangement submodule 411, be used for determining that according to weighted value the descending orders of weighted value that submodule 409 is determined sort to second candidate carrier; Then the 3rd chooser module 410 is arranged top n second candidate carrier that submodule 411 determines as activating carrier wave with the 3rd.

Embodiment 14:

The embodiment of the invention 14 provides a kind of data transmission system that belongs under the same inventive concept with embodiment six to embodiment nine, as shown in figure 10, described data transmission system comprises network equipment 51 and terminal 52, wherein: network equipment 51 is used to select at least one member carrier as second candidate carrier, wherein, the frequency range that described second candidate carrier takies is the quantity that the frequency range that can support of terminal and the second candidate carrier quantity are not more than the member carrier that terminal can support, and, data quantity transmitted is determined the activation number of carriers of needs as required, in the activation number of carriers of the second candidate carrier quantity greater than needs, select N carrier wave as activating carrier wave from second candidate carrier, described N equals to activate number of carriers; Otherwise, second candidate carrier all as activating carrier wave, and is sent the sign of the activation carrier wave that obtains by main carrier to described terminal 52, described main carrier is to determine according to the frequency range that terminal can be supported; Terminal 52 is used for the activation carrier wave of the sign correspondence of the described activation carrier wave that receives is monitored, and the described activation carrier transmission data by monitoring.

The embodiment of the invention is taken all factors into consideration the factors such as load of the channel quality and the carrier wave of terminal capability, carrier wave, a kind of scheme of determining main carrier in multicarrier system has been proposed, the feasible main carrier of determining and the capabilities match of terminal, avoided terminal can't correctly monitor the problem of main carrier, simultaneously, the main carrier channel quality of selecting is better, load is lower, can provide service for terminal well.In addition, the embodiment of the invention is taken all factors into consideration the data volume of terminal capability, network side and terminal transmission, the channel quality of carrier wave and the factors such as load of carrier wave, the scheme of definite activation carrier wave has been proposed, make the activation carrier wave of determining to satisfy the requirement of transfer of data, again can be because of selecting to activate the wasting of resources that number of carriers too much causes, the activation carrier wave of Xuan Zeing is the stronger carrier wave of ability simultaneously, can bear the task of transmission data well.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (29)

1. the method for a definite main carrier is characterized in that, described method comprises:

Network side selects at least one member carrier as first candidate carrier, and wherein, the frequency range that described first candidate carrier takies is the frequency range that terminal can be supported;

Network side is selected the main carrier of a carrier wave as described terminal from described first candidate carrier.

2. the method for claim 1 is characterized in that, network side is selected after first candidate carrier, and determines that described method also comprises before the described main carrier:

Network side is selected once more to first candidate carrier, and the first candidate carrier quantity after selecting once more is not more than the quantity of the member carrier that terminal can support;

Network side is determined described main carrier, comprising:

Select the main carrier of a carrier wave first candidate carrier of network side after selecting once more as described terminal.

3. method as claimed in claim 1 or 2 is characterized in that network side is selected after first candidate carrier, and determines that described method also comprises before the described main carrier:

Network side is determined the terminal quantity of each first candidate carrier correspondence, and described terminal quantity is with first candidate carrier of the correspondence quantity as the terminal of main carrier;

Network side is determined described main carrier, comprising:

Network side selects a carrier wave as described main carrier from first candidate carrier of terminal quantity less than first set point of correspondence.

4. method as claimed in claim 3 is characterized in that,

Network side selects a carrier wave of corresponding terminal quantity minimum as described main carrier.

5. method as claimed in claim 1 or 2 is characterized in that network side is selected after first candidate carrier, and determines that described method also comprises before the described main carrier:

Network side is determined the channel quality parameter value of each first candidate carrier;

Network side is determined described main carrier, comprising:

Network side from the channel quality parameter value greater than selecting a carrier wave the candidate carrier of second set point as described main carrier.

6. method as claimed in claim 5 is characterized in that,

A carrier wave of network side selective channel mass parameter value maximum is as described main carrier.

7. method as claimed in claim 1 or 2 is characterized in that network side is selected after first candidate carrier, and determines that described method also comprises before the described main carrier:

Network side is determined the terminal quantity and the channel quality parameter value of each first candidate carrier correspondence, and described terminal quantity is with first candidate carrier of the correspondence quantity as the terminal of main carrier;

Network side is determined described main carrier, comprising:

Network side is determined the weighted value of each candidate carrier according to following formula:

${\mathrm{PRI}}_i=P1*\frac{X}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+P2*\frac{\mathrm{CQI}\_C{C}_i}{Y}$

Wherein, PRI _iThe weighted value of representing i first candidate carrier, the 1≤i≤first candidate carrier quantity; P1, P2 represent weighted factor, P1+P2=1; UE_NUM_ANCHOR_CC _iThe terminal quantity of representing i the first candidate carrier correspondence; CQI_CC _iThe channel quality parameter value of representing i candidate carrier; X and Y are fixed value;

Network side from weighted value greater than the main carrier of selecting a carrier wave as described terminal first candidate carrier of the 3rd set point.

8. method as claimed in claim 7 is characterized in that,

Network side selects a carrier wave of weighted value maximum as described main carrier.

9. indicate the method that activates carrier wave for one kind, it is characterized in that described method comprises:

Network side selects at least one member carrier as second candidate carrier, and wherein, the frequency range that described second candidate carrier takies is the quantity that the frequency range that can support of terminal and the second candidate carrier quantity are not more than the member carrier that terminal can support;

Network side is the definite activation number of carriers that needs of data quantity transmitted as required, if the second candidate carrier quantity greater than the activation number of carriers of needs, then selects N carrier wave as activating carrier wave from second candidate carrier, described N equals to activate number of carriers; Otherwise, with second candidate carrier all as activating carrier wave;

The sign of the activation carrier wave that network side obtains to the indication of described terminal by main carrier, described main carrier is to determine according to the frequency range that terminal can be supported.

10. method as claimed in claim 9 is characterized in that, if the second candidate carrier quantity greater than the activation number of carriers of needs, then selects the step of activation carrier wave to comprise:

Network side is determined the channel quality parameter value of each second candidate carrier;

Network side selects N second candidate carrier as activating carrier wave from second candidate carrier, and wherein the channel quality parameter value of the N of Xuan Zeing second candidate carrier is greater than the channel quality parameter value of unselected second candidate carrier.

11. method as claimed in claim 9 is characterized in that, if the second candidate carrier quantity greater than the activation number of carriers of needs, then selects the step of activation carrier wave to comprise:

Network side is determined the terminal quantity of each second candidate carrier correspondence, and described terminal quantity is with second candidate carrier of the correspondence quantity as the terminal of main carrier;

Network side selects N second candidate carrier as activating carrier wave from second candidate carrier, and wherein the terminal quantity of the N of Xuan Zeing the second candidate carrier correspondence is less than the terminal quantity of the unselected second candidate carrier correspondence.

12. method as claimed in claim 9 is characterized in that, if the second candidate carrier quantity greater than the activation number of carriers of needs, then selects the step of activation carrier wave to comprise:

Network side is determined the channel quality parameter value and the corresponding terminal quantity of each second candidate carrier, and described terminal quantity is with second candidate carrier of the correspondence quantity as the terminal of main carrier;

Network side is determined the weighted value of each second candidate carrier according to following formula:

${\mathrm{PRI}}_i=P1*\frac{X}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+P2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{Y}$

Wherein, PRI _iThe weighted value of representing i second candidate carrier, the 1≤i≤second candidate carrier quantity; P1, P2 represent weighted factor, P1+P2=1; UE_NUM_ANCHOR_CC _iThe terminal quantity of representing i candidate carrier correspondence; CQI_CC _iThe channel quality parameter value of representing i second candidate carrier; X and Y are fixed value;

Network side selects N second candidate carrier as activating carrier wave from second candidate carrier, and wherein the weighted value of the N of Xuan Zeing second candidate carrier is greater than the weighted value of the unselected second candidate carrier correspondence.

13. as the arbitrary described method of claim 9～12, it is characterized in that,

Described activation carrier wave comprises described main carrier.

14. one kind is carried out monitor method to main carrier, it is characterized in that described method comprises:

Terminal receives the sign of the definite main carrier of network side;

Terminal is monitored the main carrier of the sign correspondence of described main carrier, and described main carrier is that the frequency range that network side can be supported according to terminal is determined.

15. method as claimed in claim 14 is characterized in that,

Described terminal receives the sign of described main carrier by the RRC signaling.

16. one kind is utilized and activates the carrier transmission data method, it is characterized in that described method comprises:

Terminal receives the sign of the definite activation carrier wave of network side;

Terminal is monitored the activation carrier wave of the sign correspondence of described activation carrier wave, and the described activation carrier transmission data by monitoring, the quantity and the needs data quantity transmitted of the member carrier that described activation carrier wave is the frequency range that can support according to terminal of network side, can support are determined.

17. method as claimed in claim 16 is characterized in that,

Do not need to activate but be in the sign of the member carrier of state of activation if comprise terminal in the sign of the described activation carrier wave that receives of terminal, then described method also comprises:

Terminal is to not needing to activate but be in the member carrier deexcitation of state of activation.

18. method as claimed in claim 17 is characterized in that,

Terminal receives the sign of the member carrier carrier wave of activation or deexcitation by RRC signaling, L1/L2 signaling or MAC signaling, and determines the carrier wave of needs activation or deexcitation according to the sign that receives.

19. a network equipment is characterized in that, described network equipment comprises:

First candidate carrier is selected module, is used to select at least one member carrier as first candidate carrier, and wherein, the frequency range that described first candidate carrier takies is the frequency range that terminal can be supported;

Main carrier is selected module, is used for selecting the main carrier of a carrier wave as described terminal from described first candidate carrier.

20. network equipment as claimed in claim 19 is characterized in that,

Described first candidate carrier is selected module, also is used for first candidate carrier of determining is selected once more, and the first candidate carrier quantity after selecting once more is not more than the quantity of the member carrier that terminal can support;

Described main carrier is selected module, is further used for selecting first candidate carrier after selecting once more the main carrier of a carrier wave as described terminal.

21., it is characterized in that described network equipment also comprises as claim 19 or 20 described network equipments:

The terminal quantity determination module is used for determining that the terminal quantity of each first candidate carrier correspondence, described terminal quantity are with first candidate carrier of the correspondence quantity as the terminal of main carrier;

Described main carrier is selected module, is further used for selecting a carrier wave as described main carrier from first candidate carrier of terminal quantity less than first set point of correspondence.

22., it is characterized in that described network equipment also comprises as claim 19 or 20 described network equipments:

The channel quality determination module is used for determining the channel quality parameter value of each first candidate carrier;

Described main carrier is selected module, is further used for from the channel quality parameter value greater than selecting a carrier wave as described main carrier the candidate carrier of second set point.

23., it is characterized in that described network equipment also comprises as claim 19 or 20 described network equipments:

The terminal quantity determination module is used for determining that the terminal quantity of each first candidate carrier correspondence, described terminal quantity are with first candidate carrier of the correspondence quantity as the terminal of main carrier;

The channel quality determination module is used for determining the channel quality parameter value of each first candidate carrier;

The weighted value determination module is used for determining according to following formula the weighted value of each candidate carrier:

${\mathrm{PRI}}_i=P1*\frac{X}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+P2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{Y}$

Wherein, PRI _iThe weighted value of representing i first candidate carrier, the 1≤i≤first candidate carrier quantity; P1, P2 represent weighted factor, P1+P2=1; UE_NUM_ANCHOR_CC _iThe terminal quantity of representing i the first candidate carrier correspondence; CQI_CC _iThe channel quality parameter value of representing i candidate carrier; X and Y are fixed value;

Described main carrier is selected module, is further used for from weighted value greater than selecting the main carrier of a carrier wave as described terminal first candidate carrier of the 3rd set point.

24. a network equipment is characterized in that, described network equipment comprises:

Second candidate carrier is selected module, be used to select at least one member carrier as second candidate carrier, wherein, the frequency range that takies of described second candidate carrier is the quantity that the frequency range that can support of terminal and the second candidate carrier quantity are not more than the member carrier that terminal can support;

Activate the number of carriers determination module, be used for the activation number of carriers of the definite needs of data quantity transmitted as required;

Comparison module is used for the activation number of carriers of the comparison second candidate carrier quantity and needs;

Activate the carrier wave determination module, be used for when being the second candidate carrier quantity greater than the activation number of carriers of needs, selecting N carrier wave as the activation carrier wave at comparative result from second candidate carrier, described N equals to activate number of carriers; Otherwise, with second candidate carrier all as activating carrier wave;

Indicating module is used for the sign of the activation carrier wave that obtains to the indication of described terminal by main carrier, and described main carrier is to determine according to the frequency range that terminal can be supported.

25. network equipment as claimed in claim 24 is characterized in that, described activation carrier wave determination module comprises:

Channel quality is determined submodule, is used for determining the channel quality parameter value of each second candidate carrier;

The first chooser module, be used in the second candidate carrier quantity during greater than the activation number of carriers of needs, select N second candidate carrier as activating carrier wave from second candidate carrier, wherein the channel quality parameter value of the N of Xuan Zeing second candidate carrier is greater than the channel quality parameter value of unselected second candidate carrier; Otherwise, with second candidate carrier all as activating carrier wave.

26. network equipment as claimed in claim 24 is characterized in that, described activation carrier wave determination module comprises:

The terminal quantity submodule is used for determining that the terminal quantity of each second candidate carrier correspondence, described terminal quantity are with second candidate carrier of the correspondence quantity as the terminal of main carrier;

The second chooser module, be used in the second candidate carrier quantity during greater than the activation number of carriers of needs, select N second candidate carrier as activating carrier wave from second candidate carrier, wherein the terminal quantity of the N of Xuan Zeing the second candidate carrier correspondence is less than the terminal quantity of the unselected second candidate carrier correspondence; Otherwise, with second candidate carrier all as activating carrier wave.

27. network equipment as claimed in claim 24 is characterized in that, described activation carrier wave determination module comprises:

The terminal quantity submodule is used for determining that the terminal quantity of each second candidate carrier correspondence, described terminal quantity are with second candidate carrier of the correspondence quantity as the terminal of main carrier;

Channel quality is determined submodule, is used for determining the channel quality parameter value of each second candidate carrier;

Weighted value is determined submodule, is used for determining according to following formula the weighted value of each second candidate carrier:

${\mathrm{PRI}}_i=P1*\frac{X}{\mathrm{UE}\_\mathrm{NUM}\_\mathrm{ANCHOR}\_{\mathrm{CC}}_i}+P2*\frac{\mathrm{CQI}\_{\mathrm{CC}}_i}{Y}$

Wherein, PRI _iThe weighted value of representing i second candidate carrier, the 1≤i≤second candidate carrier quantity; P1, P2 represent weighted factor, P1+P2=1; UE_NUm_ANCHOR_CC _iThe terminal quantity of representing i candidate carrier correspondence; CQI_CC _iThe channel quality parameter value of representing i second candidate carrier; X and Y are fixed value;

The 3rd chooser module, be used in the second candidate carrier quantity during greater than the activation number of carriers of needs, select N second candidate carrier as activating carrier wave from second candidate carrier, wherein the weighted value of the N of Xuan Zeing second candidate carrier is greater than the weighted value of the unselected second candidate carrier correspondence; Otherwise, with second candidate carrier all as activating carrier wave.

28. the system of a monitoring system is characterized in that, described monitoring system comprises network equipment and terminal, wherein:

Network equipment, be used to select at least one member carrier as first candidate carrier, from described first candidate carrier, select the main carrier of a carrier wave as described terminal, and the sign of described main carrier sent to terminal, wherein, the frequency range that takies of described first candidate carrier is the frequency range that terminal can be supported;

Terminal is used for according to the sign of the described main carrier that receives the main carrier of correspondence being monitored.

29. a data transmission system is characterized in that described data transmission system comprises network equipment and terminal, wherein:

Network equipment, be used to select at least one member carrier as second candidate carrier, wherein, the frequency range that described second candidate carrier takies is the quantity that the frequency range that can support of terminal and the second candidate carrier quantity are not more than the member carrier that terminal can support, and

The definite activation number of carriers that needs of data quantity transmitted in the activation number of carriers of the second candidate carrier quantity greater than needs, selects N carrier wave as activating carrier wave from second candidate carrier as required, and described N equals to activate number of carriers; Otherwise, second candidate carrier all as activating carrier wave, and is sent the sign of the activation carrier wave that obtains by main carrier to described terminal, described main carrier is to determine according to the frequency range that terminal can be supported;

Terminal is used for according to the sign of the described activation carrier wave that receives the activation carrier wave of correspondence being monitored, and the described activation carrier transmission data by monitoring.

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