CN103763779B - The method and device of resource block group is distributed in a kind of long evolving system - Google Patents

The method and device of resource block group is distributed in a kind of long evolving system Download PDF

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Publication number
CN103763779B
CN103763779B CN201410013313.0A CN201410013313A CN103763779B CN 103763779 B CN103763779 B CN 103763779B CN 201410013313 A CN201410013313 A CN 201410013313A CN 103763779 B CN103763779 B CN 103763779B
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rbg
time slot
terminal
enodeb
distribution
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CN201410013313.0A
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CN103763779A (en
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黄志强
谢忠时
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中兴通讯股份有限公司
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Priority to CN201410013313.0A priority patent/CN103763779B/en
Publication of CN103763779A publication Critical patent/CN103763779A/en
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Abstract

The invention discloses a kind of Long Term Evolution(LTE)Resource block group is distributed in system(RBG)Method, including:Indicated according to the channel quality received(CQI)The RBG service conditions of information and self record, to send the RBG in the terminal distribution time slot one of CQI information and/or time slot two, use new Downlink Control Information(DCI)RBG allocation results are programmed in DCI by form.The present invention further simultaneously discloses the device that RBG is distributed in a kind of LTE system, can be according to the signal condition of two time slots in common subframe using the present invention, two time slots distribution RBG of respectively common subframe, lifts the anti-fading property of LTE system, and then improve the performance of whole system.

Description

The method and device of resource block group is distributed in a kind of long evolving system

Technical field

The present invention relates to wireless communication field Long Term Evolution(LTE, Long Term Evolution)Resource point in system With distribution resource block group in technology, more particularly to a kind of LTE system(RBG, Resource Block Group)Method and dress Put.

Background technology

Wireless communication field third generation partner program(3GPP, The3rd Generation Partnership Project)In LTE projects be 3G evolution, improve and enhance 3G aerial access technology, using OFDM (OFDM, Orthogonal Frequency Division Multiplexing)/ frequency division multiple access(FDMA, Frequency Division Multiple Access)For the technology of core.

Thread is that a subframe is 1ms in LTE technologies, and subframe has two kinds of structures:Common subframe and special subframe, its In common subframe include two time slots, each time slot 0.5ms, according to the sequencing of each time slot, by two in common subframe Individual time slot is referred to as time slot one and time slot two according to time order and function order;Special subframe includes three special time slots.Each When the transmission of uplink/downlink business is carried out in common subframe, it is allocated RBG as basic physical resource unit;Wherein, RBG by Multiple Physical Resource Block(PRB, Physical Resource Block)Composition, PRB width on frequency domain is 180kHz.

Evolved base station in LTE system(eNodeB)Any one terminal distribution RBG method for its management is: ENodeB is to sending channel quality instruction(CQI, Channel Quality Indicator)The terminal of information, is advised according to agreement Fixed resource allocation algorithm carries out the RBG distribution of time slot one and time slot two to the terminal in pairs;ENodeB leads to RBG allocation results Cross Downlink Control Information(DCI, Downlink Control Information)Terminal is notified, terminal is according to DCI specified RBG positions carry out the reception and transmission of up-downgoing business datum.Wherein, the eNodeB notifies RBG allocation results by DCI Terminal is:ENodeB DCI formats according to corresponding to the transmission mode of terminal is selected, the RBG allocation results of the terminal are programmed in Resource block distribution in DCI(RBA, Resource Block Assignment)In field;DCI is controlled by physical down Channel(PDCCH, Physical Downlink Control Channel)Issue terminal.The transmission mode according to terminal DCI format corresponding to selected is that transmission mode and DCI format are associated by eNodeB according to agreement, such as:Transmission mode 2 is right The DCI format answered is DCI1a.

But be the paired RBG distribution for carrying out time slot one and time slot two in above-mentioned distribution RBG method, so eNodeB Can not be respectively respectively flexibly two time slots according to the signal quality situation of two time slots in each common subframe in CQI information Distribute RBG, in this way, occur in one time slot using signal quality during the RBG specified it is good, in another time slot using referring to Signal quality poor situation during fixed RGB resources, so once there is signal fadeout, will influence signal quality it is poor when The quality of reception signal in gap, and then influence systematic function.

It can be seen that eNodeB is any one terminal distribution RBG of its management method in existing LTE system at present, by In that can not be two time slot flexible allocation RBG according to the unlike signal quality condition of two time slots in common subframe, cause LTE System can not lift anti-fading property, and then influence the performance of whole system.

The content of the invention

In view of this, it is an object of the invention to provide the method and device that RBG is distributed in a kind of LTE system, according to general The signal condition of two time slots in logical subframe, two time slots distribution RBG of respectively common subframe, lifts the anti-of LTE system It is fading, and then improve the performance of whole system.

To reach above-mentioned purpose, the technical proposal of the invention is realized in this way:

The invention provides a kind of method that RBG is distributed in LTE system, this method includes:

According to the RBG service conditions of the CQI information and self record received, during to send the terminal distribution of CQI information RBG in gap one and/or time slot two, RBG allocation results are programmed in DCI using new DCI format.

In such scheme, before CQI information and the RBG service conditions of self record that the basis receives, this method Also include:New DCI format is set, is specially:Before RBA fields in DCI format, increase time slot instruction(TSI, Time Slot Indicator)Field, other fields are set by the regulation of existing protocol in DCI format;

Wherein, the TSI fields are used for representing time slot corresponding to the RBG of distribution.

In such scheme, CQI information and the RBG service conditions of self record that the basis receives, to send CQI letters RBG in the terminal distribution time slot one and/or time slot two of breath, including:

According to the good frequency range of the terminal signal quality for sending the CQI information recorded in CQI information, it is right in time slot one to check Whether the RBG answered is idle, if idle, judges the quantity of the idle RBG that signal quality is good in time slot one, if meets hair Carry out the demand of the terminal of the CQI information, if it is satisfied, then the RBG for the terminal distribution time slot one;

If RBG corresponding to the good frequency range of terminal signal quality described in time slot one is not idle or time slot one in signal matter RBG quantity is unsatisfactory for the demand of the terminal corresponding to measured frequency range, then sends the CQI according to what is recorded in CQI information The good frequency range of the terminal signal quality of information, check whether corresponding RBG is idle in time slot two, if the free time, then when judging The good idle RBG of signal quality quantity in gap two, if meet the demand for sending the terminal of the CQI information, if it is satisfied, It is then the RBG of the terminal distribution time slot two;

If RBG corresponding to the good frequency range of terminal signal quality described in time slot two is not idle or time slot two in signal matter RBG quantity is unsatisfactory for the demand of the terminal corresponding to measured frequency range, then distributes the RBG of time slot one and time slot two in pairs.

It is described that RBG allocation results are programmed in DCI using DCI format in such scheme, including:By RBG distribution knot Fruit is programmed in the RBA fields of new DCI format, and RBG distribution time slot is filled in TSI fields.

It is described that RBG allocation result is programmed in the RBA fields of new DCI format in such scheme, and in TSI fields In fill in RBG distribution time slot, including:

When the time slot of distribution is time slot a period of time, TSI fields are arranged to 0x01, RBG distribution knot are write in RBA fields Fruit;When the time slot of distribution is time slot two, TSI fields are arranged to 0x02, and RBG allocation result is write in RBA fields;At that time When gap one and time slot two distribute in pairs, TSI fields are arranged to 0x00, and time slot one is written as in RBA fields and time slot two is paired RBG allocation result.

In such scheme, after RBG allocation results are programmed in DCI by the new DCI format of the use, this method is also wrapped Include:DCI is sent to the terminal for sending CQI information using physical downlink control channel PDCCH by eNodeB, and the terminal is according to pre- The program demodulation DCI for the new DCI format of demodulation put.

Present invention also offers the device that RBG is distributed in a kind of LTE system, the device includes:ENodeB transceiver modules and ENodeB resource distribution modules;Wherein,

ENodeB transceiver modules, for the CQI information received to be sent into eNodeB resource distribution modules;

ENodeB resource distribution modules, for the CQI information and the RBG of self record sent according to eNodeB transceiver modules Service condition, to send the RBG in the terminal distribution time slot one of CQI information and/or time slot two, using new DCI format by RBG points It is programmed in result in DCI.

In such scheme, the eNodeB resource distribution modules, specifically for preserving the new DCI format set, it is specially: Before RBA fields in DCI format, increase TSI fields, other fields are set by the regulation of existing protocol in DCI format;Its In, the TSI fields are used for representing time slot corresponding to the RBG of distribution.

In such scheme, the eNodeB resource distribution modules, specifically for sending this according to what is recorded in CQI information The good frequency range of the terminal signal quality of CQI information, check whether corresponding RBG is idle in time slot one, if idle, when judging The good idle RBG of signal quality quantity in gap one, if meet the demand for sending the terminal of the CQI information, if it is satisfied, It is then the RBG of the terminal distribution time slot one;

If RBG corresponding to the good frequency range of terminal signal quality described in time slot one is not idle or time slot one in signal matter RBG quantity is unsatisfactory for the demand of the terminal corresponding to measured frequency range, then sends the CQI according to what is recorded in CQI information The good frequency range of the terminal signal quality of information, check whether corresponding RBG is idle in time slot two, if the free time, then when judging The good idle RBG of signal quality quantity in gap two, if meet the demand for sending the terminal of the CQI information, if it is satisfied, It is then the RBG of the terminal distribution time slot two;

If RBG corresponding to the good frequency range of terminal signal quality described in time slot two is not idle or time slot two in signal matter RBG quantity is unsatisfactory for the demand of the terminal corresponding to measured frequency range, then distributes the RBG of time slot one and time slot two in pairs.

In such scheme, the eNodeB resource distribution modules, specifically for RBG allocation result is programmed in into new DCI In the RBA fields of form, and fill in TSI fields RBG distribution time slot.

In such scheme, the eNodeB resource distribution modules, specifically for working as the time slot of distribution for time slot a period of time, TSI Field is arranged to 0x01, and RBG allocation result is write in RBA fields;When the time slot of distribution is time slot two, TSI fields are set 0x02 is set to, RBG allocation result is write in RBA fields;When time slot one and time slot two distribute in pairs, TSI fields are set For 0x00, time slot one and the paired RBG of time slot two allocation result are written as in RBA fields.

In such scheme, the device also includes:Terminal D CI demodulation modules, send for receiving eNodeB transceiver modules DCI, DCI is demodulated according to the program of the preset new DCI format of demodulation;

Accordingly, the eNodeB transceiver modules, it is additionally operable to receive the DCI that eNodeB resource distribution modules are sent, uses DCI is sent to terminal D CI demodulation modules by PDCCH;

The eNodeB resource distribution modules, it is additionally operable to the DCI for containing RBG allocation results being sent to eNodeB transmitting-receivings Module.

In such scheme, the eNodeB transceiver modules and the eNodeB resource distribution modules are located at eNodeB;It is described Terminal D CI demodulation modules are located at terminal.

In LTE system provided by the present invention distribute RBG method and device, according to the CQI information received and itself The RBG service conditions of record, it is determined that the signal condition of two time slots in the common subframe of the terminal of CQI information is sent, for hair The terminal for carrying out CQI information distributes time slot one or the RBG or paired RBG distributed in time slot one and time slot two in time slot two respectively; In addition, the present invention is improved to obtain new DCI format to DCI format, enable in DCI transmission time slots one and/or time slot two RBG allocation results, in this way, by using the present invention LTE system can be lifted by distributing the RBG in different time-gap respectively Anti-fading property, and then improve the performance of whole system.

Brief description of the drawings

Fig. 1 is the method flow diagram that RBG is distributed in LTE system of the present invention;

Fig. 2 is the schematic flow sheet of embodiment of the method one that RBG is distributed in LTE system of the present invention;

Fig. 3 is the schematic flow sheet of embodiment of the method two that RBG is distributed in LTE system of the present invention;

Fig. 4 is that the device that RBG is distributed in LTE system of the present invention forms structural representation.

Embodiment

The present invention basic thought be:According to the RBG service conditions of the CQI information and self record received, to send RBG in the terminal distribution time slot one and/or time slot two of CQI information, RBG allocation results are programmed in DCI using new DCI format In.

Below in conjunction with the accompanying drawings and specific embodiment the present invention is further described in more detail.

RBG method is distributed in a kind of LTE system as shown in figure 1, comprising the following steps:

Step 101:New DCI format is set.

Here, the new DCI format is:Before providing the RBA fields in DCI format in the protocol, increase TSI fields, Other fields are set by the regulation of existing protocol in DCI format;Wherein, the TSI fields be expressed as terminal distribution RBG when Gap, length are two bytes, define 0x00 and represent that time slot one and time slot two distribute in pairs, and 0x01 represents only to distribute in time slot one, 0x02 represents only to distribute in time slot two.

Step 102:According to the RBG service conditions of the CQI information and self record received, to send the end of CQI information RBG in end distribution time slot one and/or time slot two.

Here, the CQI information is the information of the signal quality situation of the down channel of base station where terminal monitoring, and it is produced Raw mode and transmission form are prior art, are not repeated here;CQI information can be terminal according to preset cycle, week CQI information is sent to eNodeB by phase property, or terminal receives the instruction for reporting CQI information that eNodeB is sent Afterwards, CQI information is sent to eNodeB.

Step 103:RBG allocation results are programmed in DCI using new DCI format.

Here, it is described to be written as:RBG allocation result is programmed in the RBA fields of new DCI format, and in TSI fields In fill in RBG distribution time slot, be specially:When the time slot of distribution is time slot a period of time, TSI fields are arranged to 0x01, in RBA fields In write RBG allocation result;When the time slot of distribution is time slot two, TSI fields are arranged to 0x02, are write in RBA fields RBG allocation result;When time slot one and time slot two distribute in pairs, TSI fields are arranged to 0x00, are written as in RBA fields The allocation result of time slot one and the paired RBG of time slot two;Wherein, the allocation result that RBG is write in RBA fields be according to Prior art is write, and can be to be labeled as taking and marking by the RBG of this sub-distribution in resource bitmap specified in prior art Go out the mark for the terminal distributed to.

In above-mentioned steps 102, CQI information and the RBG service conditions of self record that the basis receives, to send RBG in the terminal distribution time slot one and/or time slot two of CQI information, comprises the following steps:

Step a:According to the good frequency range of the terminal signal quality for sending the CQI information recorded in CQI information, time slot is checked Whether corresponding RBG is idle in one, if idle, performs step b;Otherwise, step c is performed.

Here, the terminal signal quality can be well:Determined according to preset signal quality threshold value, work as CQI information The signal intensity of any one frequency range of middle upload is higher than signal quality threshold value, the as good frequency range of signal quality;The letter Number quality threshold is preset according to actual conditions.

Whether the free time is the RBG resources:Whether there is occupied mark to determine according to the eNodeB RBG resources recorded.

Step b:Judge the quantity of the idle RBG that signal quality is good in time slot one, if satisfaction sends the CQI information The demand of terminal, if it is satisfied, then being the RBG of the terminal distribution time slot one, perform step 103;If be unsatisfactory for, step is performed Rapid c.

Here, the demand that whether meets to send the terminal of the CQI information is:Ends of the eNodeB in CQI information End mark checks the RBG used needed for the terminal of self record quantity, in the time slot one for judging current eNodeB management Whether RBG quantity meets the needs of terminal corresponding to the good frequency range of signal quality;Wherein, make needed for the terminal of the record RBG quantity is the information for the terminal that eNodeB specified in prior art needs its management recorded, is not done here superfluous State.

Step c:According to the good frequency range of the terminal signal quality for sending the CQI information recorded in CQI information, time slot is checked Whether corresponding RBG is idle in two, if the free time, then performs step d;Otherwise, step e is performed.

Step d:Judge the quantity of the idle RBG that signal quality is good in time slot two, if satisfaction sends the CQI information The demand of terminal, if it is satisfied, then being the RBG of the terminal distribution time slot two, perform step 103;If be unsatisfactory for, step is performed Rapid e.

Step e:The RBG of distribution time slot one and time slot two in pairs, perform step 103.

Here, the RBG of distribution time slot one and time slot two in pairs is not done superfluous here to be allocated according to existing agreement State.

In addition, above-mentioned steps 101 before, it is necessary to improve eNodeB management terminal, enable the terminals to demodulate the present invention carry The new DCI format supplied, the method that terminal is improved can be:The demodulation process of the preset new DCI format of demodulation in the terminal, is compiled Write and the method for the program of the preset new DCI format of demodulation is prior art, do not repeat here;Also, eNodeB is also needed to It is improved to demodulate the situation of new DCI format provided by the invention according to the terminal of self-management, it is determined that setting new DCI lattice Formula is by the way of, if the terminal that eNodeB is currently managed can largely transform the terminal for demodulating new DCI format as, using side Formula one sets new DCI format;Otherwise, employing mode two sets new DCI format;Wherein, the major part can be higher than preset Ratio value, such as:Can be higher than 98%, i.e. terminal in the terminal of eNodeB management more than 98% can be improved to demodulate The terminal of new DCI format;

Wherein, the employing mode one sets the new DCI format to be:Existing DCI format specified in agreement is all changed For corresponding new DCI format, and new DCI format is still associated with the transmission mode corresponding to former DCI format;It is described to set newly Transmission mode corresponding to DCI format is to be set according to prior art, such as, transmission mould corresponding to DCI1a forms in prior art Formula is transmission mode 2, then newly transmission mode corresponding to DCI1a forms will be arranged to transmission mode 2 in the present embodiment, set it The method of transmission mode by that analogy, does not repeat here corresponding to his new DCI format;The employing mode two sets new DCI Form is:Increase defines a kind of new DCI format, and new DCI lattice are used between the terminal and eNodeB of the enabled new DCI format of demodulation Formula, and the transmission mode of terminal is defined as to new transmission mode, eNodeB carries out new DCI format and new transmission mode Association.Wherein, a kind of new DCI format of definition can be:Modified on the basis of existing DCI1a forms, in DCI1a Increase TSI fields before the RSA fields of form, amended DCI1a forms are defined as DCI7 forms;It is described to define new transmission The method of pattern is prior art, such as, new transmission mode can be defined as transmission mode 12.

Further, when employing mode one sets new DCI format in step 101, before above-mentioned steps 102, eNodeB Also need to according to prior art, the transmission mode of terminal of new DCI format can be demodulated by obtaining self-management, and determine that this can New DCI format corresponding to the terminal of new DCI format is demodulated, when performing step 103, using the new DCI format of determination, by RBG's Allocation result, which is programmed in DCI, is sent to corresponding terminal;

When employing mode two sets new DCI format in step 101, before above-mentioned steps 102, eNodeB is according to existing skill Art, the transmission mode of all terminals of self-management is obtained, whether the terminal for the CQI information for judging to send is that can demodulate newly The terminal of DCI format, if it is, performing step 102;If it is not, then subsequent allocations RBG behaviour is performed according to prior art Make, do not repeat here.

After the completion of above-mentioned steps 103, DCI is sent to terminal by eNodeB using PDCCH, and terminal is new according to preset demodulation The program demodulation DCI of DCI format, subsequent operation is carried out further according to the RBG allocation results in DCI according to prior art.

Embodiment one, it is assumed that the terminal of eNodeB management is improved to demodulate the terminal of new DCI format entirely, and eNodeB is adopted New DCI format is set with mode one, the terminal for sending CQI information is terminal one, and the transmission mode of terminal one is 2, then realizes this RBG method is distributed in invention LTE system as shown in Fig. 2 comprising the following steps:

Step 201:ENodeB employing modes one set new DCI format.

Step 202:ENodeB new DCI according to corresponding to the transmission mode of the terminal one of self-management is 2 determination terminals one Form is new DCI1a forms.

Here, the transmission mode of the terminal is the parameter of the terminal for its own management that eNodeB is preserved, and eNodeB is obtained The method for taking the transmission mode of terminal is prior art, is not repeated here.

Step 203:ENodeB receives the CQI information that the terminal one of self-management is sent.

Step 204:ENodeB distributes according to the RBG service conditions of the CQI information and self record received for terminal one RBG in time slot one and/or time slot two.

Step 205:RBG allocation results are programmed in DCI and are sent to terminal one by eNodeB using new DCI1a forms.

Embodiment two, it is assumed that the terminal that eNodeB is currently managed can not largely transform the terminal for demodulating new DCI format as, It is DCI7 that eNodeB employing modes two, which set new DCI format, and transmission mode corresponding to DCI7 is 12, sends the terminal of CQI information For that can demodulate the terminal two of DCI7 forms, the transmission mode of terminal two is 12, then realizes in LTE system of the present invention and distribute RBG Method as shown in figure 3, comprising the following steps:

Step 301:It is DCI7 forms that eNodeB employing modes two, which set new DCI format, and corresponding transmission mode is determined Justice is transmission mode 12.

Step 302:ENodeB new DCI according to corresponding to the transmission mode of the terminal two of self-management is 12 determination terminals two Form is DCI7 forms.

Step 303:Whether the CQI information that eNodeB judges to receive carrys out self terminal two, if it is, performing step 304;It is no Then, subsequent treatment is carried out using prior art, while repeats step 303.

Step 304:ENodeB distributes according to the RBG service conditions of the CQI information and self record received for terminal two RBG in time slot one and/or time slot two.

Step 305:RBG allocation results are programmed in DCI and are sent to terminal two by eNodeB using DCI7 forms.

In a kind of LTE system provided by the invention distribute RBG device as shown in figure 4, including:ENodeB resource allocation moulds Block 41 and eNodeB transceiver modules 42;Wherein,

ENodeB transceiver modules 42, for the CQI information received to be sent into eNodeB resource distribution modules 41;

ENodeB resource distribution modules 41, for the CQI information and self record sent according to eNodeB transceiver modules 42 RBG service conditions, to send the RBG in the terminal distribution time slot one of CQI information and/or time slot two, use new DCI format will RBG allocation results are programmed in DCI.

The eNodeB resource distribution modules 41, it is additionally operable to preserve new DCI format.

The eNodeB resource distribution modules 41, the RBA specifically for RBG allocation result to be programmed in new DCI format In field, and RBG distribution time slot is filled in TSI fields, be specially:When the time slot of distribution is time slot a period of time, TSI fields are set 0x01 is set to, RBG allocation result is write in RBA fields;When the time slot of distribution is time slot two, TSI fields are arranged to 0x02, RBG allocation result is write in RBA fields;When time slot one and time slot two distribute in pairs, TSI fields are arranged to 0x00, time slot one and the paired RBG of time slot two allocation result are written as in RBA fields.

The eNodeB resource distribution modules 41, specifically for according to the end for sending the CQI information recorded in CQI information The measured frequency range of end signal matter, check whether corresponding RBG is idle in time slot one, if idle, judge signal in time slot one The measured idle RBG of matter quantity, if meet the demand for sending the terminal of the CQI information, if it is satisfied, then being the terminal Distribute the RBG of time slot one;

If RBG corresponding to the good frequency range of terminal signal quality described in time slot one is not idle or time slot one in signal matter RBG quantity is unsatisfactory for the demand of the terminal corresponding to measured frequency range, then sends the CQI according to what is recorded in CQI information The good frequency range of the terminal signal quality of information, check whether corresponding RBG is idle in time slot two, if the free time, then when judging The good idle RBG of signal quality quantity in gap two, if meet the demand for sending the terminal of the CQI information, if it is satisfied, It is then the RBG of the terminal distribution time slot two;

If RBG corresponding to the good frequency range of terminal signal quality described in time slot two is not idle or time slot two in signal matter RBG quantity is unsatisfactory for the demand of the terminal corresponding to measured frequency range, then distributes the RBG of time slot one and time slot two in pairs.

The eNodeB resource distribution modules 41, it is additionally operable to be improved to that this hair can be demodulated according to the terminal of self-management The situation of the new DCI format of bright offer, it is determined that new DCI format is set by the way of, if the terminal that eNodeB is currently managed is big Part can transform the terminal for demodulating new DCI format as, then employing mode one sets new DCI format;Otherwise, employing mode two is set New DCI format;Wherein, the major part can be higher than preset ratio value, such as:Can be the i.e. eNodeB pipes higher than 98% Terminal in the terminal of reason more than 98% can be improved to demodulate the terminal of new DCI format.

Wherein, the employing mode one sets the new DCI format to be:Existing DCI format specified in agreement is all changed For corresponding new DCI format, and new DCI format is still associated with the transmission mode corresponding to former DCI format;It is described to set newly Transmission mode corresponding to DCI format is to be set according to prior art, such as, transmission mould corresponding to DCI1a forms in prior art Formula is transmission mode 2, then newly transmission mode corresponding to DCI1a forms will be arranged to transmission mode 2 in the present embodiment, set it The method of transmission mode by that analogy, does not repeat here corresponding to his new DCI format;

The employing mode two sets the new DCI format to be:Increase defines a kind of new DCI format, enables the new DCI format of demodulation Terminal and eNodeB between use new DCI format, and the transmission mode of terminal is defined as to new transmission mode, eNodeB New DCI format and new transmission mode are associated.Wherein, a kind of new DCI format of definition can be:Existing Modified on the basis of DCI1a forms, increase TSI fields before the RSA fields of DCI1a forms, by amended DCI1a lattice Formula is defined as DCI7 forms;The method for defining new transmission mode is prior art, such as, can be by new transmission mode It is defined as transmission mode 12.

The eNodeB resource distribution modules 41, it is additionally operable to, when employing mode one sets new DCI format, be obtained from barrel Reason can demodulate the transmission mode of the terminal of new DCI format, and determine new corresponding to the terminal that can demodulate new DCI format DCI format.

The eNodeB resource distribution modules 41, when being additionally operable to employing mode two and setting new DCI format, eNodeB is according to There is technology, obtain the transmission mode of all terminals of self-management, whether the terminal for the CQI information for judging to send is to demodulate The terminal of new DCI format, if it is, according to the RBG service conditions of the CQI information and self record received, to send CQI RBG in the terminal distribution time slot one and/or time slot two of information;If it is not, then perform subsequent allocations RBG according to prior art Operation, do not repeat here.

Described device also includes:Terminal D CI demodulation modules 43, for the demodulation journey of the new DCI format of demodulation saved presets Sequence, writes and the method for the program of the preset new DCI format of demodulation is prior art, does not repeat here.

The eNodeB resource distribution modules 41, it is additionally operable to DCI being sent to eNodeB transceiver modules 42;Accordingly, institute ENodeB transceiver modules 42 are stated, is additionally operable to receive the DCI that eNodeB resource distribution modules 41 are sent, is sent DCI using PDCCH To terminal D CI demodulation modules 43;The terminal D CI demodulation modules 43, it is additionally operable to receive what eNodeB transceiver modules 42 were sent DCI, DCI is demodulated according to the program of the preset new DCI format of demodulation, further according to the RBG allocation results in DCI according to prior art Carry out subsequent operation.

Above-mentioned eNodeB transceiver modules 42 and eNodeB resource distribution modules 41 are located at eNodeB;Above-mentioned terminal D CI demodulation Module 43 is located at terminal.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims (9)

1. resource block group RBG method is distributed in a kind of Long Term Evolution LTE system, it is characterised in that in Downlink Control Information DCI Before resource block distribution RBA fields in form, increase time slot instruction TSI fields, as new DCI format;This method includes:
The RBG service conditions recorded according to the channel quality indicator CQI information and terminal received, to send the end of CQI information RBG allocation results, are programmed in by the RBG in end distribution time slot one and/or time slot two using new Downlink Control Information DCI format In DCI;
The CQI information and the RBG service conditions of self record that the basis receives, during to send the terminal distribution of CQI information RBG in gap one and/or time slot two, including:
According to the good frequency range of the terminal signal quality for sending the CQI information recorded in CQI information, check corresponding in time slot one Whether RBG is idle, if idle, judges the quantity of the idle RBG that signal quality is good in time slot one, if satisfaction sends this The demand of the terminal of CQI information, if it is satisfied, then the RBG for the terminal distribution time slot one;
If RBG corresponding to the good frequency range of terminal signal quality described in time slot one is not idle or time slot one in signal quality it is good Frequency range corresponding to RBG quantity be unsatisfactory for the demand of the terminal, then send the CQI information according to what is recorded in CQI information The good frequency range of terminal signal quality, check whether corresponding RBG idle in time slot two, if the free time, then judge time slot two The good idle RBG of middle signal quality quantity, if meet the demand for sending the terminal of the CQI information, if it is satisfied, then being The RBG of the terminal distribution time slot two;
If RBG corresponding to the good frequency range of terminal signal quality described in time slot two is not idle or time slot two in signal quality it is good Frequency range corresponding to RBG quantity be unsatisfactory for the demand of the terminal, then the RBG of distribution time slot one and time slot two in pairs;
Wherein, the TSI fields are used for representing time slot corresponding to the RBG of distribution.
2. according to the method for claim 1, it is characterised in that described to be programmed in RBG allocation results using DCI format In DCI, including:RBG allocation result is programmed in the RBA fields of new DCI format, and RBG point is filled in TSI fields With time slot.
3. according to the method for claim 2, it is characterised in that described that RBG allocation result is programmed in new DCI format In RBA fields, and RBG distribution time slot is filled in TSI fields, including:
When the time slot of distribution is time slot a period of time, TSI fields are arranged to 0x01, RBG allocation result are write in RBA fields;When When the time slot of distribution is time slot two, TSI fields are arranged to 0x02, and RBG allocation result is write in RBA fields;When time slot one When being distributed in pairs with time slot two, TSI fields are arranged to 0x00, and time slot one and the paired RBG of time slot two are written as in RBA fields Allocation result.
4. method according to claim 1 or 2, it is characterised in that described to be compiled RBG allocation results using new DCI format After writing in DCI, this method also includes:DCI is sent to and sends CQI by eNodeB using physical downlink control channel PDCCH The terminal of information, the terminal demodulate DCI according to the program of the preset new DCI format of demodulation.
5. RBG device is distributed in a kind of LTE system, it is characterised in that the device includes:ENodeB transceiver modules and eNodeB Resource distribution module;Wherein,
ENodeB transceiver modules, for the CQI information received to be sent into eNodeB resource distribution modules;
ENodeB resource distribution modules, before the RBA fields in DCI format, increase TSI fields, as new DCI lattice The RBG service conditions of formula, the CQI information sent according to eNodeB transceiver modules and terminal record, to send the terminal of CQI information RBG allocation results, are programmed in DCI by the RBG distributed in time slot one and/or time slot two using new DCI format;
The eNodeB resource distribution modules, for according to the terminal signal quality for sending the CQI information recorded in CQI information Good frequency range, checks whether corresponding RBG is idle in time slot one, if idle, judges the sky that signal quality is good in time slot one Not busy RBG quantity, if meet the demand for sending the terminal of the CQI information, if it is satisfied, then being the terminal distribution time slot one RBG;
If RBG corresponding to the good frequency range of terminal signal quality described in time slot one is not idle or time slot one in signal quality it is good Frequency range corresponding to RBG quantity be unsatisfactory for the demand of the terminal, then send the CQI information according to what is recorded in CQI information The good frequency range of terminal signal quality, check whether corresponding RBG idle in time slot two, if the free time, then judge time slot two The good idle RBG of middle signal quality quantity, if meet the demand for sending the terminal of the CQI information, if it is satisfied, then being The RBG of the terminal distribution time slot two;
If RBG corresponding to the good frequency range of terminal signal quality described in time slot two is not idle or time slot two in signal quality it is good Frequency range corresponding to RBG quantity be unsatisfactory for the demand of the terminal, then the RBG of distribution time slot one and time slot two in pairs;
Wherein, the TSI fields are used for representing time slot corresponding to the RBG of distribution.
6. device according to claim 5, it is characterised in that
The eNodeB resource distribution modules, for RBG allocation result to be programmed in the RBA fields of new DCI format, and RBG distribution time slot is filled in TSI fields.
7. device according to claim 6, it is characterised in that
The eNodeB resource distribution modules, it is time slot a period of time for the time slot when distribution, TSI fields are arranged to 0x01, in RBA RBG allocation result is write in field;When the time slot of distribution is time slot two, TSI fields are arranged to 0x02, in RBA fields Write RBG allocation result;When time slot one and time slot two distribute in pairs, TSI fields are arranged to 0x00, are compiled in RBA fields It is written as time slot one and the paired RBG of time slot two allocation result.
8. device according to claim 7, it is characterised in that the device also includes:
Terminal D CI demodulation modules, the DCI sent for receiving eNodeB transceiver modules, according to the preset new DCI format of demodulation Program demodulates DCI;
Accordingly, the eNodeB transceiver modules, it is additionally operable to receive the DCI that eNodeB resource distribution modules are sent, uses PDCCH DCI is sent to terminal D CI demodulation modules;
The eNodeB resource distribution modules, it is additionally operable to the DCI for containing RBG allocation results being sent to eNodeB transmitting-receiving moulds Block.
9. device according to claim 8, it is characterised in that
The eNodeB transceiver modules and the eNodeB resource distribution modules are located at eNodeB;
The terminal D CI demodulation modules are located at terminal.
CN201410013313.0A 2012-01-18 2012-01-18 The method and device of resource block group is distributed in a kind of long evolving system CN103763779B (en)

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