CN104053237B - Resource indicating method, base station and the UE of backward compatibility carrier wave - Google Patents

Resource indicating method, base station and the UE of backward compatibility carrier wave Download PDF

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CN104053237B
CN104053237B CN201310083919.7A CN201310083919A CN104053237B CN 104053237 B CN104053237 B CN 104053237B CN 201310083919 A CN201310083919 A CN 201310083919A CN 104053237 B CN104053237 B CN 104053237B
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backward compatibility
kinds
compatibility carrier
carrier wave
pdcch
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CN104053237A (en
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胡丽洁
沈晓冬
史志华
王锐
胡臻平
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中国移动通信集团公司
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Abstract

The resource indicating method of present invention proposition backward compatibility carrier wave and corresponding base station and UE, for new wave-carring type as defined in LTER12 agreements, the situation that a band frequency is used as backward compatibility carrier wave is marked in centre, the OFDM symbol number purpose method that backward compatibility carrier bandwidths and control channel occupy among instruction is proposed, one of which method includes:For new wave-carring type as defined in LTE R12 agreements, when the assembled state of the occupied OFDM symbol numbers of PDCCH of the bandwidth and the backward compatibility carrier wave of the backward compatibility carrier wave among the new wave-carring type is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged into a kind, or 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of a deletion rank smaller than the new wave-carring type, form remaining 8 kinds of assembled states;Remaining 8 kinds of assembled states are indicated using CIF.The present invention can reduce the implementation complexity of UE.

Description

Resource indicating method, base station and the UE of backward compatibility carrier wave

Technical field

The present invention relates to the resource indicating method of wireless communication technology field more particularly to backward compatibility carrier wave, base station and UE。

Background technology

Long Term Evolution version 12(LTE R12, Long Term Evolution Release12)Agreement defines a kind of new Carrier type(NTC, New Carrier Type), which can work independently, and UE can be resident and access on the carrier wave. For the backwards compatibility of the carrier wave, the carrier wave of one section of backward compatibility can be opened up in the centre of the carrier wave for not supporting new carrier wave UE access.

The schematic diagram of new wave-carring type as defined in Fig. 1 is LTE R12 agreements.After the medium design of new wave-carring type B To compatible carrier wave B0, the UE of LTE R8/R9/R10 can only recognize intermediate backward compatibility carrier wave B0, can be connect on B0 Enter and dispatch, the UE of R8/R9/R10 passes through the Physical Downlink Control Channel in backward compatibility carrier wave B0(PDCCH, Physical Downlink Control Channel)Carry out the instruction of resource scheduling information.Enhanced Long Term Evolution(LTE-A,LTE- Advanced)UE can carry out data transmission on new wave-carring type B, the UE of LTE-A passes through the enhancing in new wave-carring type B Type PDCCH(EPDCCH, enhanced Physical Downlink Control Channel)Carry out resource scheduling information Indicate rather than carried out by the PDCCH in intermediate backward compatibility carrier wave B0 the instruction of resource scheduling information.

In new wave-carring type B, if currently without the UE of backward compatibility is needed to exist, whole new wave-carring type B are used It transmits the information of the UE of LTE-A, can be not present in intermediate backward compatibility carrier wave B0.

In the case that intermediate backward compatibility carrier wave B0 is not taken by the UE of R8/R9/R10, the UE of LTE-A can be used Resource transmission data in B0, if Fig. 2 is the schematic diagram of the resource transmission data in the UE occupancy backward compatibility carrier waves of LTE-A, Wherein, the part physical DSCH Downlink Shared Channel in new wave-carring type B(PDSCH, Physical Downlink Shared Channel)And the part PDSCH in backward compatibility carrier wave B0 is used for transmission data by the UE of LTE-A.

In order to ensure the available resources in the proper use of B0 of the UE of LTE-A, the UE of LTE-A is it needs to be determined that backward compatibility carrier wave The occupied OFDM symbol numbers of PDCCH of the bandwidth and backward compatibility carrier wave B0 of B0.At present, it is easier the side expected Method is the UE of LTE-A by reading the Physical Control Format Indicator Channel in backward compatibility carrier wave B0(PCFICH, Physical Control Format Indicator Channel)The occupied OFDM symbol numbers of PDCCH of B0 are obtained, and pass through reading PBCH obtains the bandwidth of B0, and still, such a process increases the implementation complexity of UE.

The content of the invention

It, can be by the way of easy by LTE the present invention provides the resource indicating method of four kinds of backward compatibility carrier waves The bandwidth of backward compatibility carrier wave in new wave-carring type as defined in R12 agreements and the occupied OFDM of backward compatibility carrier wave PDCCH Symbol numbers notify the UE of LTE-A, reduce the implementation complexity of UE.

Base station and UE the present invention also provides the resource instruction of two kinds of realization backward compatibility carrier waves, can use simplicity Mode is by the bandwidth of the backward compatibility carrier wave in new wave-carring type as defined in LTE R12 agreements and backward compatibility carrier wave PDCCH institutes The UE of the OFDM symbol number notice LTE-A of occupancy reduces the implementation complexity of UE.

The technical proposal of the invention is realized in this way:

A kind of resource indicating method of backward compatibility carrier wave, including:

For new wave-carring type as defined in LTE R12 agreements, base station is located at institute by broadcast channel or high-level signaling instruction The bandwidth of the backward compatibility carrier wave among new wave-carring type is stated, and passes through CIF and indicates shared by the PDCCH of the backward compatibility carrier wave OFDM symbol number.

A kind of resource indicating method of backward compatibility carrier wave, including:

For new wave-carring type as defined in LTE R12 agreements, the UE of LTE-A is supported according to the instruction of base station, is believed from broadcast The bandwidth for the backward compatibility carrier wave being located among the new wave-carring type is obtained in road or high-level signaling, and passes through CIF and obtains institute State the occupied OFDM symbol numbers of PDCCH of backward compatibility carrier wave.

A kind of resource indicating method of backward compatibility carrier wave, including:

For new wave-carring type as defined in LTE R12 agreements, when the backward compatibility among the new wave-carring type carries When the assembled state of the occupied OFDM symbol numbers of the PDCCH of the bandwidth of ripple and the backward compatibility carrier wave is more than 8 kinds, by portion 2 kinds or 3 kinds in point 3 kinds of identical assembled states of backward compatibility carrier bandwidths are merged into a kind or deleted than the new carrier wave 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of the small rank of type form remaining 8 kinds of assembled states;

Remaining 8 kinds of assembled states are indicated using CIF.

A kind of resource indicating method of backward compatibility carrier wave, including:

For new wave-carring type as defined in LTE R12 agreements, the UE of LTE-A is supported according to the instruction of base station, is obtained from CIF The PDCCH of the bandwidth of backward compatibility carrier wave among the new wave-carring type and the backward compatibility carrier wave is occupied The assembled state of OFDM symbol number;

Wherein, when the bandwidth of the backward compatibility carrier wave and the PDCCH occupied OFDM symbols of backward compatibility carrier wave When several assembled states is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged 3 kinds of assembled states for a kind or corresponding to the backward compatibility carrier bandwidths of a rank smaller than the new wave-carring type are deleted It removes, forms remaining 8 kinds of assembled states.

A kind of base station for the resource instruction for realizing backward compatibility carrier wave, including:

Backward compatibility carrier bandwidths indicating module, for for new wave-carring type as defined in LTE R12 agreements, passing through broadcast Channel or high-level signaling instruction are located at the bandwidth of the backward compatibility carrier wave among the new wave-carring type;

PDCCH occupies OFDM symbol number indicating module, for for new wave-carring type as defined in LTE R12 agreements, leading to Cross the occupied OFDM symbol numbers of PDCCH that CIF indicates the backward compatibility carrier wave.

A kind of UE for the resource instruction for realizing backward compatibility carrier wave, the UE support LTE-A, the UE to include:

Backward compatibility carrier bandwidths acquisition module, for for new wave-carring type as defined in LTE R12 agreements, passing through broadcast Channel or high-level signaling obtain the bandwidth for the backward compatibility carrier wave being located among the new wave-carring type;

PDCCH occupies OFDM symbol number acquisition module, for for new wave-carring type as defined in LTE R12 agreements, leading to Cross the occupied OFDM symbol numbers of PDCCH that CIF obtains the backward compatibility carrier wave.

A kind of base station for the resource instruction for realizing backward compatibility carrier wave, including:

Assembled state merging module, for for new wave-carring type as defined in LTE R12 agreements, when positioned at the new carrier wave The group of the occupied OFDM symbol numbers of the PDCCH of the bandwidth of backward compatibility carrier wave among type and the backward compatibility carrier wave When conjunction state is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged into a kind, Or 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of a deletion rank smaller than the new wave-carring type, it is formed Remaining 8 kinds of assembled states;

Assembled state indicating module, for indicating remaining 8 kinds of assembled states using CIF.

A kind of UE for the resource instruction for realizing backward compatibility carrier wave, the UE support LTE-A, the UE to include:

Assembled state acquisition module, for for new wave-carring type as defined in LTE R12 agreements, according to the instruction of base station from CIF obtains the bandwidth of backward compatibility carrier wave being located among the new wave-carring type and the PDCCH institutes of the backward compatibility carrier wave The assembled state of the OFDM symbol number of occupancy;

Wherein, when the bandwidth of the backward compatibility carrier wave and the PDCCH occupied OFDM symbols of backward compatibility carrier wave When several assembled states is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged 3 kinds of assembled states for a kind or corresponding to the backward compatibility carrier bandwidths of a rank smaller than the new wave-carring type are deleted It removes, forms remaining 8 kinds of assembled states.

As it can be seen that the present invention proposes resource indicating method, base station and the UE of backward compatibility carrier wave, provided for LTER12 agreements New wave-carring type, the band of existing channel or information instructions field to the backward compatibility carrier wave among new wave-carring type can be used Wide and backward compatibility carrier wave the occupied OFDM symbol numbers of PDCCH are indicated, so as to reduce the implementation complexity of UE.

Description of the drawings

Fig. 1 is the schematic diagram of new wave-carring type as defined in LTE R12 agreements;

Fig. 2 is the schematic diagram that the UE of LTE-A occupies the resource transmission data in backward compatibility carrier wave;

Fig. 3 is that a kind of resource indicating method of backward compatibility carrier wave proposed by the present invention realizes flow chart.

Specific embodiment

The present invention uses the existing carrier wave instructions field for carrier aggregation(CIF, carrier indicator field) Realize the resource instruction of backward compatibility carrier wave.CIF is an information instructions field for being located at control channel initial position, the length of 3bit, function are that the PDCCH on some member carrier is enabled to dispatch the data transmission on another member carrier.Each The presence or absence of CIF is semi-statically to be configured by RRC signaling for UE.

The symbol numbers that PDCCH is occupied are as shown in table 1, it is seen that in a certain subframe, be up to 3 kinds of OFDM symbol number purposes Possibility needs to indicate.

Table 1 is used for transmission the OFDM symbol number of PDCCH

Due to the combination of the bandwidth of backward compatibility carrier wave and the occupied OFDM symbol numbers of the PDCCH of backward compatibility carrier wave State is up to 15 kinds(Wherein, the bandwidth of backward compatibility carrier wave is up to 5 kinds of situations, be respectively 1.4MHz, 3MHz, 5MHz, 10MHz、15MHz;The occupied OFDM symbol numbers of PDCCH have 3 kinds of situations), and the CIF that length is 3bit can only represent 8 kinds State, in order to represent foregoing 15 kinds of assembled states, in the case where not using the scene of carrier aggregation, the present invention proposes following two sides Formula.

The first:The number of the occupied OFDM symbols of PDCCH in backward compatibility carrier wave is indicated using CIF, due to CIF can indicate 8 kinds of states, wherein 3 kinds can serve to indicate that PDCCH occupies the three state value of OFDM symbol completely.It considers The bandwidth of backward compatibility carrier wave is the value of a relative quiescent, after being indicated by reserved broadcast message or high-level signaling To the bandwidth of compatible carrier wave;

Method two:Indicate that the PDCCH in the bandwidth of backward compatibility carrier wave and backward compatibility carrier wave is occupied using CIF The assembled state of OFDM symbol number, in order to indicate completely, it is necessary to the part in foregoing 15 kinds of assembled states is merged or It deletes, obtains remaining 8 kinds of states, the CIF so as to use 3bit is indicated.It specifically, can be backward simultaneous by part Hold 2 kinds or 3 kinds in 3 kinds of identical assembled states of carrier bandwidths to merge into a kind or delete a grade smaller than new wave-carring type 3 kinds of assembled states corresponding to other backward compatibility carrier bandwidths.The specific embodiment of method two is done using form below It elaborates.

Embodiment one:

Table 2

In table 2, indicated using the control format defined in LTE R8 agreements(CFI, Control Format Indicator)Three kinds of values represent backward compatibility carrier wave B0 the occupied OFDM symbol numbers of PDCCH three kinds of situations. Wherein, during CFI=1, represent that the occupied OFDM symbol numbers of PDCCH of backward compatibility carrier wave B0 are minimum;During CFI=2, after expression It is placed in the middle to the occupied OFDM symbol numbers of PDCCH of compatible carrier wave B0;During CFI=3, the PDCCH of backward compatibility carrier wave B0 is represented Occupied OFDM symbol number is maximum.

During for B=1.4MHz, centre, which does not have smaller bandwidth, to be occurred, therefore does not have corresponding design.

When taking 3MHz for B, the value of B0 has a kind of situation(That is B0=1.4MHz), the value of CFI has 3 kinds of situations(That is CFI =1,2 or 3), the combination of two has 3 kinds of situations;It is indicated respectively with CIF=000,001,010.

When taking 5MHz for B, the value of B0 has 2 kinds of situations(That is B0=1.4MHz or 3MHz), the value of CFI has 3 kinds of situations (That is CFI=1,2 or 3), the combination of two has 6 kinds of situations;It is indicated respectively with CIF=000,001,010,011,100,101.

When taking 10MHz for B, the value of B0 has 3 kinds of situations(That is B0=1.4MHz, 3MHz or 5MHz), the value of CFI has 3 Kind situation(That is CFI=1,2 or 3), the combination of two has 9 kinds of situations;It, will since CIF can only indicate 8 kinds of situations(B0= 1.4MHz, CFI=1)With(B0=1.4MHz, CFI=2)This 2 kinds of assembled states merge into a kind of assembled state, with remaining 7 kinds of groups Conjunction state is indicated respectively with CIF=000,001,010,011,100,101,110,111.

When taking 15MHz for B, the value of B0 has 4 kinds of situations(That is B0=1.4MHz, 3MHz, 5MHz or 10MHz), CFI's Value has 3 kinds of situations(That is CFI=1,2 or 3), the combination of two has 12 kinds of situations;Since CIF can only indicate 8 kinds of situations, It will(B0=10MHz, CFI=1,2 or 3)These three assembled states remove, and will(B0=1.4MHz, CFI=1)With(B0=1.4MHz, CFI=2)This 2 kinds of assembled states merge into a kind, with remaining 7 kinds of assembled states respectively with CIF=000,001,010,011, 100th, 101,110,111 indicated.

When taking 20MHz for B, the value of B0 has 5 kinds of situations(That is B0=1.4MHz, 3MHz, 5MHz, 10MHz or 15MHz), The value of CFI has 3 kinds of situations(That is CFI=1,2 or 3), the combination of two has 15 kinds of situations;Since CIF can only indicate 8 kinds of situations, Therefore will(B0=15MHz, CFI=1,2 or 3)These three assembled states remove, and will(B0=1.4MHz, CFI=1)、(B0= 1.4MHz, CFI=2)With(B0=1.4MHz, CFI=3)This 3 kinds of assembled states merge into a kind, will(B0=3MHz, CFI=1)With(B0 =3MHz, CFI=2)This 2 kinds of assembled states merge into a kind, will(B0=5MHz, CFI=1)With(B0=5MHz, CFI=2)This 2 kinds of groups Conjunction state merges into a kind, with remaining 7 kinds of assembled states respectively with CIF=000,001,010,011,100,101,110,111 It is indicated.

In above-mentioned table 2, for when the situation of B=20MHz, as B0=1.4MHz, it is assumed that the PDCCH of backward compatibility carrier wave B0 Occupied OFDM symbol number can be 1,2 or 3 these three situations, then base station is when resource impact and UE are in demodulation It will assume that PDCCH occupies max { 1,2,3 }=3 OFDM symbol.I.e. method two can sacrifice some available resource units (RE, Resource Element), do not have data mapping on these RE.

When designing table 2, as far as possible so that the RE numbers of waste are few.Such as three kinds of CFI during why to B0=1.4MHz Value all merges into value 3, is because RE numbers at this time on 6 RB of an OFDM symbol for 72, CFI take 1 and take 3 difference to be 144 RE.And during B0=5MHZ, it is 300 RE that a CFI, which takes 1 and 2 difference,.

Further, it is also possible to above-mentioned 15 kinds of assembled states are merged and deleted using other modes.If after for example, In the case of the width of compatible carrier wave B0 is usually all smaller(In general, if resource is more rich in the bandwidth of intermediate backward compatibility, Illustrate the whole leeway of the reserved also oriented ditty of compatibility bandwidth), such as less than 5MHz, then in design, it may be considered that for Three kinds of CFI values of small bandwidth such as 1.4MHz all indicate respectively, and for the smaller larger backward compatibility carrier wave of probability of occurrence State merges.It is as shown in table 3 below.

Embodiment two:

Table 3

Identical with table 2, three kinds of values also using the CFI in LTE R8 agreements in table 3 represent backward compatibility carrier wave B0 The occupied OFDM symbol numbers of PDCCH three kinds of situations.

It, will when taking 10MHz for B(B0=5MHz, CFI=1)With(B0=5MHz, CFI=2)This 2 kinds of assembled states merge into 1 Kind, it is indicated respectively with CIF=000,001,010,011,100,101,110,111 with remaining 7 kinds of assembled states.

It, will when taking 15MHz for B(B0=10MHz, CFI=1,2 or 3)These three assembled states remove, and will(B0= 5MHz, CFI=1)With(B0=1.4MHz, CFI=2)This 2 kinds of assembled states merge into a kind, distinguish with remaining 7 kinds of assembled states It is indicated with CIF=000,001,010,011,100,101,110,111.

It, will when taking 20MHz for B(B0=15MHz, CFI=1,2 or 3)These three assembled states remove, and will(B0= 10MHz, CFI=1)、(B0=10MHz, CFI=2)With(B0=10MHz, CFI=3)This 3 kinds of assembled states merge into a kind, will(B0= 5MHz, CFI=1)With(B0=5MHz, CFI=2)This 2 kinds of assembled states merge into a kind, will(B0=3MHz, CFI=1)With(B0= 5MHz, CFI=2)This 2 kinds of assembled states merge into a kind, with remaining 7 kinds of assembled states respectively with CIF=000,001,010, 011st, 100,101,110,111 indicated.

Table 2 and table 3 only indicate the merging of two kinds of assembled states and delete mode, and the embodiment of the present invention can also have other Merge and delete mode, the invention is not limited in this regard.The possible state of OFDM symbol number, which is occupied, even for PDCCH is less than 3 Those subframes during kind are, it is necessary to which the status number merged can be less.For example, for preceding 2 kinds of subframes in table 1, B0=3MHz and more than Bandwidth, PDCCH occupy OFDM symbol number only there are two types of possible state, and PDCCH only has a kind of OFDM symbol number during B0=1.4MHz State, B take 15MHz bandwidth and it is following when, state need not all merge, and can indicate completely.When B takes 20MHz bandwidth, totally 9 kinds Assembled state merges 2 kinds of assembled states therein.

Using above two mode, the resource indicating method of the present invention four kinds of backward compatibility carrier waves of proposition and realization are backward simultaneous Hold base station and the UE of the resource instruction of carrier wave, specifically include:

A kind of resource indicating method of backward compatibility carrier wave, including:

For new wave-carring type as defined in LTE R12 agreements, base station is located at institute by broadcast channel or high-level signaling instruction The bandwidth of the backward compatibility carrier wave among new wave-carring type is stated, and passes through CIF and indicates shared by the PDCCH of the backward compatibility carrier wave OFDM symbol number.

A kind of resource indicating method of backward compatibility carrier wave, including:

For new wave-carring type as defined in LTE R12 agreements, the UE of LTE-A is supported according to the instruction of base station, is believed from broadcast The bandwidth for the backward compatibility carrier wave being located among the new wave-carring type is obtained in road or high-level signaling, and passes through CIF and obtains institute State the occupied OFDM symbol numbers of PDCCH of backward compatibility carrier wave.

A kind of resource indicating method of backward compatibility carrier wave, if Fig. 3 is the realization flow chart of this method, including:

Step 301:For new wave-carring type as defined in LTE R12 agreements, when among the new wave-carring type after The assembled state of the occupied OFDM symbol numbers of PDCCH of bandwidth and the backward compatibility carrier wave to compatible carrier wave is more than 8 During kind, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged into a kind or delete ratio 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of the small rank of new wave-carring type form remaining 8 kinds of groups Conjunction state;

Step 302:Remaining 8 kinds of assembled states are indicated using CIF.

In above-mentioned steps 301, by 2 kinds or 3 kinds merging in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths Can be for a kind of mode:

It is 1.4MHz and backward by backward compatibility carrier bandwidths in the case of the bandwidth of new wave-carring type is 10MHz 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of compatible carrier wave merge into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 1.4MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.

It is 1.4MHz and backward by backward compatibility carrier bandwidths in the case of the bandwidth of new wave-carring type is 15MHz 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of compatible carrier wave merge into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 1.4MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.

In the case of the bandwidth of new wave-carring type is 20MHz, by 3 kinds of combinations that backward compatibility carrier bandwidths are 1.4MHz Status merging is that backward compatibility carrier bandwidths are 1.4MHz and the occupied OFDM symbols of the PDCCH of backward compatibility carrier wave are a The maximum assembled state of number;

Also, by the occupied OFDM symbols of PDCCH that backward compatibility carrier bandwidths are 3MHz and backward compatibility carrier wave 2 kinds of assembled states of number minimum merge into backward compatibility carrier bandwidths as shared by 3MHz and the PDCCH of backward compatibility carrier wave OFDM symbol number is that assembled state maximum in 2 kinds;

Also, by the occupied OFDM symbols of PDCCH that backward compatibility carrier bandwidths are 5MHz and backward compatibility carrier wave 2 kinds of assembled states of number minimum merge into backward compatibility carrier bandwidths as shared by 5MHz and the PDCCH of backward compatibility carrier wave OFDM symbol number is that assembled state maximum in 2 kinds.

Alternatively, in above-mentioned steps 301, by 2 kinds or 3 in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths Kind merging into a kind of mode can be:

It is 5MHz and backward simultaneous by backward compatibility carrier bandwidths in the case of the bandwidth of new wave-carring type is 10MHz 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of appearance carrier wave merge into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 5MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.

It is 5MHz and backward simultaneous by backward compatibility carrier bandwidths in the case of the bandwidth of new wave-carring type is 15MHz 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of appearance carrier wave merge into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 5MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.

In the case of the bandwidth of new wave-carring type is 20MHz, by 3 kinds of combinations that backward compatibility carrier bandwidths are 10MHz Status merging is that backward compatibility carrier bandwidths are 10MHz and the occupied OFDM symbol numbers of the PDCCH of backward compatibility carrier wave Maximum assembled state;

Also, by the occupied OFDM symbols of PDCCH that backward compatibility carrier bandwidths are 5MHz and backward compatibility carrier wave 2 kinds of assembled states of number minimum merge into backward compatibility carrier bandwidths as shared by 5MHz and the PDCCH of backward compatibility carrier wave OFDM symbol number is that assembled state maximum in 2 kinds;

Also, by the occupied OFDM symbols of PDCCH that backward compatibility carrier bandwidths are 3MHz and backward compatibility carrier wave 2 kinds of assembled states of number minimum merge into backward compatibility carrier bandwidths as shared by 3MHz and the PDCCH of backward compatibility carrier wave OFDM symbol number is that assembled state maximum in 2 kinds.

In above-mentioned steps 301,3 kinds corresponding to the backward compatibility carrier bandwidths of a rank smaller than new wave-carring type are deleted The mode of assembled state can be:

In the case of the bandwidth of new wave-carring type is 15MHz, 3 kinds of groups that backward compatibility carrier bandwidths are 10MHz are deleted Conjunction state;

In the case of the bandwidth of new wave-carring type is 20MHz, 3 kinds of groups that backward compatibility carrier bandwidths are 15MHz are deleted Conjunction state.

A kind of resource indicating method of backward compatibility carrier wave, including:

For new wave-carring type as defined in LTE R12 agreements, the UE of LTE-A is supported according to the instruction of base station, is obtained from CIF The PDCCH of the bandwidth of backward compatibility carrier wave among the new wave-carring type and the backward compatibility carrier wave is occupied The assembled state of OFDM symbol number;

Wherein, when the bandwidth of the backward compatibility carrier wave and the PDCCH occupied OFDM symbols of backward compatibility carrier wave When several assembled states is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged 3 kinds of assembled states for a kind or corresponding to the backward compatibility carrier bandwidths of a rank smaller than the new wave-carring type are deleted It removes, forms remaining 8 kinds of assembled states.

In the above method, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged into 1 Kind mode can be:

In the case of the bandwidth of new wave-carring type is 10MHz, backward compatibility carrier bandwidths are 1.4MHz and backward simultaneous 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of appearance carrier wave are merged into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 1.4MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.

In the case of the bandwidth of new wave-carring type is 15MHz, backward compatibility carrier bandwidths are 1.4MHz and backward simultaneous 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of appearance carrier wave are merged into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 1.4MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.

In the case of the bandwidth of new wave-carring type is 20MHz, backward compatibility carrier bandwidths are 3 kinds of 1.4MHz and combine shapes State is merged into PDCCH occupied OFDM symbol of the backward compatibility carrier bandwidths for 1.4MHz and backward compatibility carrier wave The maximum assembled state of number;

Also, backward compatibility carrier bandwidths are the PDCCH occupied OFDM symbols of 3MHz and backward compatibility carrier wave 2 kinds of minimum assembled states of number are merged into backward compatibility carrier bandwidths as shared by 3MHz and the PDCCH of backward compatibility carrier wave OFDM symbol number is that assembled state maximum in 2 kinds;

Also, backward compatibility carrier bandwidths are the PDCCH occupied OFDM symbols of 5MHz and backward compatibility carrier wave 2 kinds of minimum assembled states of number are merged into backward compatibility carrier bandwidths as shared by 5MHz and the PDCCH of backward compatibility carrier wave OFDM symbol number is that assembled state maximum in 2 kinds.

Alternatively, in the above method, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are closed And can be for a kind of mode:

In the case of the bandwidth of new wave-carring type is 10MHz, backward compatibility carrier bandwidths are 5MHz and backward compatibility 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of carrier wave are merged into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 5MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.

In the case of the bandwidth of new wave-carring type is 15MHz, backward compatibility carrier bandwidths are 5MHz and backward compatibility 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of carrier wave are merged into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 5MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.

In the case of the bandwidth of new wave-carring type is 20MHz, backward compatibility carrier bandwidths are 3 kinds of 10MHz and combine shapes State is merged into the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 10MHz and backward compatibility carrier wave Maximum assembled state;

Also, backward compatibility carrier bandwidths are the PDCCH occupied OFDM symbols of 5MHz and backward compatibility carrier wave 2 kinds of minimum assembled states of number are merged into backward compatibility carrier bandwidths as shared by 5MHz and the PDCCH of backward compatibility carrier wave OFDM symbol number is that assembled state maximum in 2 kinds;

Also, backward compatibility carrier bandwidths are the PDCCH occupied OFDM symbols of 3MHz and backward compatibility carrier wave 2 kinds of minimum assembled states of number are merged into backward compatibility carrier bandwidths as shared by 3MHz and the PDCCH of backward compatibility carrier wave OFDM symbol number is that assembled state maximum in 2 kinds.

In the above method, 3 kinds of combination shapes corresponding to the backward compatibility carrier bandwidths of a rank smaller than new wave-carring type The mode that state is deleted can be:

In the case of the bandwidth of new wave-carring type is 15MHz, backward compatibility carrier bandwidths are 3 kinds of 10MHz and combine shapes State is deleted;

In the case of the bandwidth of new wave-carring type is 20MHz, backward compatibility carrier bandwidths are 3 kinds of 15MHz and combine shapes State is deleted.

A kind of base station for the resource instruction for realizing backward compatibility carrier wave, including:

Backward compatibility carrier bandwidths indicating module, for for new wave-carring type as defined in LTE R12 agreements, passing through broadcast Channel or high-level signaling instruction are located at the bandwidth of the backward compatibility carrier wave among the new wave-carring type;

PDCCH occupies OFDM symbol number indicating module, for for new wave-carring type as defined in LTE R12 agreements, leading to Cross the occupied OFDM symbol numbers of PDCCH that CIF indicates the backward compatibility carrier wave.

A kind of UE for the resource instruction for realizing backward compatibility carrier wave, the UE support LTE-A, the UE to include:

Backward compatibility carrier bandwidths acquisition module, for for new wave-carring type as defined in LTE R12 agreements, passing through broadcast Channel or high-level signaling obtain the bandwidth for the backward compatibility carrier wave being located among the new wave-carring type;

PDCCH occupies OFDM symbol number acquisition module, for for new wave-carring type as defined in LTE R12 agreements, leading to Cross the occupied OFDM symbol numbers of PDCCH that CIF obtains the backward compatibility carrier wave.

A kind of base station for the resource instruction for realizing backward compatibility carrier wave, including:

Assembled state merging module, for for new wave-carring type as defined in LTE R12 agreements, when positioned at the new carrier wave The group of the occupied OFDM symbol numbers of the PDCCH of the bandwidth of backward compatibility carrier wave among type and the backward compatibility carrier wave When conjunction state is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged into a kind, Or 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of a deletion rank smaller than the new wave-carring type, it is formed Remaining 8 kinds of assembled states;

Assembled state indicating module, for indicating remaining 8 kinds of assembled states using CIF.

A kind of UE for the resource instruction for realizing backward compatibility carrier wave, the UE support LTE-A, the UE to include:

Assembled state acquisition module, for for new wave-carring type as defined in LTE R12 agreements, according to the instruction of base station from CIF obtains the bandwidth of backward compatibility carrier wave being located among the new wave-carring type and the PDCCH institutes of the backward compatibility carrier wave The assembled state of the OFDM symbol number of occupancy;

Wherein, when the bandwidth of the backward compatibility carrier wave and the PDCCH occupied OFDM symbols of backward compatibility carrier wave When several assembled states is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged 3 kinds of assembled states for a kind or corresponding to the backward compatibility carrier bandwidths of a rank smaller than the new wave-carring type are deleted It removes, forms remaining 8 kinds of assembled states.

To sum up, resource indicating method, base station and the UE of backward compatibility carrier wave proposed by the present invention, for LTE R12 New wave-carring type as defined in agreement, using existing channel or information instructions field(Such as CIF)After among new wave-carring type The occupied OFDM symbol numbers of PDCCH of bandwidth and backward compatibility carrier wave to compatible carrier wave are indicated, so as to reduce The implementation complexity of UE.When CIF can not indicate combination aforementioned combinatorial state completely, part assembled state is merged or deleted It removes, so that remaining assembled state can completely be indicated by CIF.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of protection of the invention.

Claims (18)

1. a kind of resource indicating method of backward compatibility carrier wave, which is characterized in that the described method includes:
For new wave-carring type as defined in LTE R12 agreements, when the backward compatibility carrier wave among the new wave-carring type When the assembled state of the occupied OFDM symbol numbers of the PDCCH of bandwidth and the backward compatibility carrier wave is more than 8 kinds, behind part 2 kinds or 3 kinds in 3 kinds of assembled states identical to compatible carrier wave bandwidth are merged into a kind or deleted than the new wave-carring type 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of a small rank form remaining 8 kinds of assembled states;
Remaining 8 kinds of assembled states are indicated using CIF.
It is 2. according to the method described in claim 1, it is characterized in that, described by identical 3 kinds of part backward compatibility carrier bandwidths 2 kinds in assembled state or 3 kinds of modes for merging into a kind are:
It is 1.4MHz and backward by backward compatibility carrier bandwidths in the case of the bandwidth of the new wave-carring type is 10MHz 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of compatible carrier wave merge into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 1.4MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.
It is 3. according to the method described in claim 1, it is characterized in that, described by identical 3 kinds of part backward compatibility carrier bandwidths 2 kinds in assembled state or 3 kinds of modes for merging into a kind are:
It is 1.4MHz and backward by backward compatibility carrier bandwidths in the case of the bandwidth of the new wave-carring type is 15MHz 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of compatible carrier wave merge into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 1.4MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.
It is 4. according to the method described in claim 1, it is characterized in that, described by identical 3 kinds of part backward compatibility carrier bandwidths 2 kinds in assembled state or 3 kinds of modes for merging into a kind are:
In the case of the bandwidth of the new wave-carring type is 20MHz, by 3 kinds of combinations that backward compatibility carrier bandwidths are 1.4MHz Status merging is that backward compatibility carrier bandwidths are 1.4MHz and the occupied OFDM symbols of the PDCCH of backward compatibility carrier wave are a The maximum assembled state of number;
Also, by the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 3MHz and backward compatibility carrier wave It is occupied for the PDCCH of 3MHz and backward compatibility carrier wave that 2 kinds of minimum assembled states merge into backward compatibility carrier bandwidths OFDM symbol number is that assembled state maximum in two kinds;
Also, by the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 5MHz and backward compatibility carrier wave It is occupied for the PDCCH of 5MHz and backward compatibility carrier wave that 2 kinds of minimum assembled states merge into backward compatibility carrier bandwidths OFDM symbol number is that assembled state maximum in two kinds.
It is 5. according to the method described in claim 1, it is characterized in that, described by identical 3 kinds of part backward compatibility carrier bandwidths 2 kinds in assembled state or 3 kinds of modes for merging into a kind are:
It is 5MHz and backward simultaneous by backward compatibility carrier bandwidths in the case of the bandwidth of the new wave-carring type is 10MHz 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of appearance carrier wave merge into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 5MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.
It is 6. according to the method described in claim 1, it is characterized in that, described by identical 3 kinds of part backward compatibility carrier bandwidths 2 kinds in assembled state or 3 kinds of modes for merging into a kind are:
It is 5MHz and backward simultaneous by backward compatibility carrier bandwidths in the case of the bandwidth of the new wave-carring type is 15MHz 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of appearance carrier wave merge into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 5MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.
It is 7. according to the method described in claim 1, it is characterized in that, described by identical 3 kinds of part backward compatibility carrier bandwidths 2 kinds in assembled state or 3 kinds of modes for merging into a kind are:
In the case of the bandwidth of the new wave-carring type is 20MHz, by 3 kinds of combinations that backward compatibility carrier bandwidths are 10MHz Status merging is that backward compatibility carrier bandwidths are 10MHz and the occupied OFDM symbol numbers of the PDCCH of backward compatibility carrier wave Maximum assembled state;
Also, by the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 5MHz and backward compatibility carrier wave It is occupied for the PDCCH of 5MHz and backward compatibility carrier wave that 2 kinds of minimum assembled states merge into backward compatibility carrier bandwidths OFDM symbol number is that assembled state maximum in 2 kinds;
Also, by the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 3MHz and backward compatibility carrier wave It is occupied for the PDCCH of 3MHz and backward compatibility carrier wave that 2 kinds of minimum assembled states merge into backward compatibility carrier bandwidths OFDM symbol number is that assembled state maximum in 2 kinds.
8. according to the method described in claim 1, it is characterized in that, described delete the backward of a rank smaller than new wave-carring type The mode of 3 kinds of assembled states corresponding to compatible carrier wave bandwidth is:
In the case of the bandwidth of the new wave-carring type is 15MHz, the backward compatibility carrier bandwidths are deleted as the 3 of 10MHz Kind assembled state;
In the case of the bandwidth of the new wave-carring type is 20MHz, the backward compatibility carrier bandwidths are deleted as the 3 of 15MHz Kind assembled state.
9. a kind of resource indicating method of backward compatibility carrier wave, which is characterized in that the described method includes:
For new wave-carring type as defined in LTE R12 agreements, the UE of LTE-A is supported according to the instruction of base station, is located at from CIF acquisitions The occupied OFDM symbols of the PDCCH of the bandwidth of backward compatibility carrier wave among the new wave-carring type and the backward compatibility carrier wave The assembled state of number number;
Wherein, when the bandwidth of the backward compatibility carrier wave and the occupied OFDM symbol numbers of the PDCCH of backward compatibility carrier wave When assembled state is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged into 1 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of kind or a rank smaller than the new wave-carring type are deleted, Form remaining 8 kinds of assembled states.
10. the according to the method described in claim 9, it is characterized in that, identical 3 kinds of groups of the part backward compatibility carrier bandwidths 2 kinds in conjunction state or 3 kinds of modes for being merged into a kind are:
In the case of the bandwidth of the new wave-carring type is 10MHz, backward compatibility carrier bandwidths are 1.4MHz and backward simultaneous 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of appearance carrier wave are merged into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 1.4MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.
It is 11. according to the method described in claim 9, it is characterized in that, described by identical 3 kinds of part backward compatibility carrier bandwidths 2 kinds in assembled state or 3 kinds of modes for merging into a kind are:
In the case of the bandwidth of the new wave-carring type is 15MHz, backward compatibility carrier bandwidths are 1.4MHz and backward simultaneous 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of appearance carrier wave are merged into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 1.4MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.
12. the according to the method described in claim 9, it is characterized in that, identical 3 kinds of groups of the part backward compatibility carrier bandwidths 2 kinds in conjunction state or 3 kinds of modes for being merged into a kind are:
In the case of the bandwidth of the new wave-carring type is 20MHz, backward compatibility carrier bandwidths are 3 kinds of 1.4MHz and combine shapes State is merged into PDCCH occupied OFDM symbol of the backward compatibility carrier bandwidths for 1.4MHz and backward compatibility carrier wave The maximum assembled state of number;
Also, the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 3MHz and backward compatibility carrier wave are most It is occupied for the PDCCH of 3MHz and backward compatibility carrier wave that 2 kinds of small assembled states are merged into backward compatibility carrier bandwidths OFDM symbol number is that assembled state maximum in 2 kinds;
Also, the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 5MHz and backward compatibility carrier wave are most It is occupied for the PDCCH of 5MHz and backward compatibility carrier wave that 2 kinds of small assembled states are merged into backward compatibility carrier bandwidths OFDM symbol number is that assembled state maximum in 2 kinds.
13. the according to the method described in claim 9, it is characterized in that, identical 3 kinds of groups of the part backward compatibility carrier bandwidths 2 kinds in conjunction state or 3 kinds of modes for being merged into a kind are:
In the case of the bandwidth of the new wave-carring type is 10MHz, backward compatibility carrier bandwidths are 5MHz and backward compatibility 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of carrier wave are merged into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 5MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.
14. the according to the method described in claim 9, it is characterized in that, identical 3 kinds of groups of the part backward compatibility carrier bandwidths 2 kinds in conjunction state or 3 kinds of modes for being merged into a kind are:
In the case of the bandwidth of the new wave-carring type is 15MHz, backward compatibility carrier bandwidths are 5MHz and backward compatibility 2 kinds of assembled states of the occupied OFDM symbol number minimums of PDCCH of carrier wave are merged into backward compatibility carrier bandwidths and are The occupied OFDM symbol numbers of the PDCCH of 5MHz and backward compatibility carrier wave are that assembled state maximum in 2 kinds.
15. the according to the method described in claim 9, it is characterized in that, identical 3 kinds of groups of the part backward compatibility carrier bandwidths 2 kinds in conjunction state or 3 kinds of modes for being merged into a kind are:
In the case of the bandwidth of the new wave-carring type is 20MHz, backward compatibility carrier bandwidths are 3 kinds of 10MHz and combine shapes State is merged into the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 10MHz and backward compatibility carrier wave Maximum assembled state;
Also, the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 5MHz and backward compatibility carrier wave are most It is occupied for the PDCCH of 5MHz and backward compatibility carrier wave that 2 kinds of small assembled states are merged into backward compatibility carrier bandwidths OFDM symbol number is the assembled state of that maximum in 2 kinds;
Also, the occupied OFDM symbol numbers of PDCCH that backward compatibility carrier bandwidths are 3MHz and backward compatibility carrier wave are most It is occupied for the PDCCH of 3MHz and backward compatibility carrier wave that 2 kinds of small assembled states are merged into backward compatibility carrier bandwidths OFDM symbol number is that assembled state maximum in 2 kinds.
16. according to the method described in claim 9, it is characterized in that, a rank smaller than new wave-carring type it is backward simultaneous Holding the mode that 3 kinds of assembled states corresponding to carrier bandwidths are deleted is:
In the case of the bandwidth of the new wave-carring type is 15MHz, the backward compatibility carrier bandwidths are 3 kinds of groups of 10MHz Conjunction state is deleted;
In the case of the bandwidth of the new wave-carring type is 20MHz, the backward compatibility carrier bandwidths are 3 kinds of groups of 15MHz Conjunction state is deleted.
17. a kind of base station for the resource instruction for realizing backward compatibility carrier wave, which is characterized in that the base station includes:
Assembled state merging module, for for new wave-carring type as defined in LTE R12 agreements, when positioned at the new wave-carring type The combination shape of the occupied OFDM symbol numbers of PDCCH of the bandwidth and the backward compatibility carrier wave of intermediate backward compatibility carrier wave State be more than 8 kinds when, by 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths merge into a kind or 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of a rank smaller than the new wave-carring type are deleted, are formed remaining 8 kinds of assembled states;
Assembled state indicating module, for indicating remaining 8 kinds of assembled states using CIF.
18. a kind of UE for the resource instruction for realizing backward compatibility carrier wave, the UE support LTE-A, which is characterized in that the UE bags It includes:
Assembled state acquisition module, for for new wave-carring type as defined in LTE R12 agreements, according to the instruction of base station from CIF It obtains shared by the bandwidth of backward compatibility carrier wave being located among the new wave-carring type and the PDCCH of the backward compatibility carrier wave OFDM symbol number assembled state;
Wherein, when the bandwidth of the backward compatibility carrier wave and the occupied OFDM symbol numbers of the PDCCH of backward compatibility carrier wave When assembled state is more than 8 kinds, 2 kinds or 3 kinds in 3 kinds of identical assembled states of part backward compatibility carrier bandwidths are merged into 1 3 kinds of assembled states corresponding to the backward compatibility carrier bandwidths of kind or a rank smaller than the new wave-carring type are deleted, Form remaining 8 kinds of assembled states.
CN201310083919.7A 2013-03-15 2013-03-15 Resource indicating method, base station and the UE of backward compatibility carrier wave CN104053237B (en)

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CN101765208A (en) * 2008-12-26 2010-06-30 华为技术有限公司 Method for distributing resources, network equipment and wireless system
WO2012062085A1 (en) * 2010-11-08 2012-05-18 中兴通讯股份有限公司 Method and device for distributing uplink transmission data block acknowledge information

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