CN102055552B - Method for transmitting control information, method and device for receiving control information - Google Patents
Method for transmitting control information, method and device for receiving control information Download PDFInfo
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- CN102055552B CN102055552B CN200910208730.XA CN200910208730A CN102055552B CN 102055552 B CN102055552 B CN 102055552B CN 200910208730 A CN200910208730 A CN 200910208730A CN 102055552 B CN102055552 B CN 102055552B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
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Abstract
The invention relates to a method for transmitting control information, a method and device for receiving control information. The method for transmitting control information comprises the steps of: scrambling cyclic redundancy check (CRC) bits of different carriers by adopting different kinds of scrambling information, wherein the cyclic redundancy check bits of different carriers are obtained through carrying out cyclic redundancy check on control information of the different carriers; and sending the control information and the scrambled cyclic redundancy check bits. The CRC bits of the different carriers are scrambled by different kinds of scrambling information to ensure that the scrambling information corresponds to the carriers one by one, thus the different carriers of the same device are distinguished to ensure that UE (User Equipment) side can obtain the control information of different carriers of the device through a PDCCH (Packet Dedicated Control Channel), so that a plurality of downlink or uplink carriers are controlled by one downlink carrier PDCCH, and the backward compatibility is maximally maintained without remarkably increasing the processing complexity of the UE.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of method of control information transmission, the method and apparatus of receiving control information.
Background technology
Be counted as third generation partner program (the 3rd Generation PartnershipProject of " accurate 4G " technology, 3GPP) Long Term Evolution (LTE) project, with OFDM (Orthogonal FrequencyDivision Multiple Access, and multiple-input, multiple-output (Multiple-InputMultiple-Output OFDMA), MIMO) be core, its main performance target comprises: the peak rate that descending 100Mbps, up 50Mbps can be provided in 20MHz spectral bandwidth; Improve the performance of Cell Edge User; Improve cell capacity; Reduce system delay, particularly, the inner unidirectional transmission time delay of user plane is lower than 5ms, and control plane is from sleep state to state of activation transit time lower than 50ms, and the transit time from resident state to state of activation is less than 100ms; Support the community of 100Km radius to cover; Can provide the access service that is greater than 100kbps for 350Km/h high-speed mobile user; Support paired or non-paired frequency spectrum, and can flexible configuration 1.25MHz to 20MHz various bandwidth.
At present, the version R8 of LTE completes substantially.In LTE R8 system, down physical layer control channel (PDCCH), for transmitting Downlink Control Information (Downlink Control Information, DCI).DCI has multiple format, every kind of different control information of the corresponding transmission of form.The control information that DCI transmits comprises: up-downgoing data dispatch information, uplink power control order, paging indicating message etc.In LTE system, PDCCH adopts a control message of implicit instruction to belong to which subscriber equipment (UE).Concrete transmitting procedure as shown in Figure 1, comprising:
Step 10, UE initially access, and set up in RRC connection procedure, and eNB can distribute Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol (Cell Radio Network Temporary Identifier, C-RNTI) unique under Yi Gezhe community to UE.
If step 11 wishes to transmit control message to certain UE, eNB carries out cyclic redundancy check (CRC) (CRC) by the payload of PDCCH DCI (payload) and calculates, and obtains CRC bit (bit).
Step 12, the C-RNTI of this UE of CRC bit calculating is carried out to scrambling.
CRC bit after step 13, scrambling sends together with payload.
Step 14, UE carry out blind solution after receiving PDCCH DCI, DCI payload is carried out to CRC check and calculate CRC bit.
The CRC bit after to the scrambling of receiving carries out descrambling with oneself C-RNTI for step 15, UE.
Step 16, the UE CRC bit after to the CRC bit calculating and descrambling compares, and if the same illustrates that this control message is to this UE, otherwise explanation does not belong to this UE, and UE will ignore this control message.
What formally bring LTE into 4G is the propelling version (LTE Advance, LTE-A) of LTE.The technology global design of LTE-A is considerably beyond the minimum essential requirement of 4G technology.The minimum essential requirement of the LTE-A that GPP proposes is: descending peak rate 1Gbps, and up peak rate 500Mbps, up-downgoing peaks spectrum utilance reaches respectively 15Mbps/Hz and 30Mbps/Hz.These parameters, far above the minimum technology demand parameter of ITU, have obvious advantage.
In order to support larger system bandwidth, reach higher capacity and spectrum efficiency, LTE-A has introduced this key property of carrier aggregation (carrier aggregation, CA).From terminal angle, the LTE-A terminal that those receiving belts are wider than 20M can receive the transmission of multiple carrier waves simultaneously, has improved the transmission rate of unique user.From system side base station angle, a base station can be the optimal running time-frequency resource of user assignment according to each user's ability, business demand and channel condition simultaneously on multiple carrier waves, has improved capacity and the spectrum efficiency of whole system.From operator's angle, carrier aggregation technology provides a kind of effective ways that utilize scattered frequency spectrum resource, can relatively far apart or exceed LTE (R8) system support maximum bandwidth (20MHz) frequency spectrum resource use, make operator needn't buy new frequency spectrum and just can provide larger bandwidth and transmission rate for user.
Carrier aggregation, according to the relation of up-downgoing carrier number, can be divided into symmetrical carrier aggregation and asymmetric carrier aggregation.Symmetrical carrier aggregation refers to up identical with descending carrier number, and as shown in Figure 2, three up (UL) and descending (DL) polymerization carrier wave (CCC) are corresponding one by one.Asymmetric carrier aggregation refers to up-downgoing carrier number difference, as shown in Fig. 3 A, Fig. 3 B.In Fig. 3 A, descending carrier is more than up-link carrier, and in Fig. 3 B, up-link carrier is more than descending carrier.
Introduced after carrier aggregation, a UE may have multiple upstream or downstream carrier waves.If for example, by the upper resource of controlling on multiple descending or multiple up-link carriers of the PDCCH of 1 descending carrier, the scene of asymmetric carrier aggregation, the scene of 1 corresponding multiple up-link carrier of descending carrier; Or, by the upper resource of controlling on other up or descending carriers of the PDCCH of certain specific descending carrier, need to be just that UE distributes different PDCCH for different carrier waves.
Realizing in process of the present invention, inventor finds that prior art at least exists following defect: the mode that adopts a C-RNTI scrambling in LTER8 system, indicate certain PDCCH to send to which UE, it is the control message to which carrier wave that receiving terminal UE cannot distinguish the PDCCH receiving, so cannot realize the upper control to multiple descending or up-link carriers of a descending carrier PDCCH.
summary of the invention
The embodiment of the present invention proposes a kind of method of control information transmission, the method and apparatus of receiving control information.
The embodiment of the present invention provides a kind of method of control information transmission, comprising:
Adopt the cyclic redundancy check bits of the different carrier of the different same subscriber equipmenies of scramble information scrambling; The cyclic redundancy check bits of described different carrier obtains by the control information cyclic redundancy check (CRC) of the different carrier to described same subscriber equipment;
On a Physical Downlink Control Channel, send described control information and the cyclic redundancy check bits through scrambling.
The embodiment of the present invention also provides a kind of method of receiving control information, comprising:
Subscriber equipment receives the control information of different carrier and the cyclic redundancy check bits through scrambling on a Physical Downlink Control Channel;
Described subscriber equipment carries out cyclic redundancy check (CRC) and obtains the first cyclic redundancy check bits of different carrier to the control information of described different carrier, and adopt the cyclic redundancy check bits through scrambling of different carrier described in different scramble information descramblings, obtain the second cyclic redundancy check bits of described different carrier;
Described subscriber equipment identical in the situation that, obtains the control information of each carrier wave of described subscriber equipment with the second cyclic redundancy check bits in described the first cyclic redundancy check bits.
The embodiment of the present invention also provides a kind of base station, comprising:
Scrambling module, for adopting the cyclic redundancy check bits of different carrier of the different same subscriber equipmenies of scramble information scrambling; The cyclic redundancy check bits of described different carrier obtains by the control information cyclic redundancy check (CRC) of the different carrier to described same subscriber equipment;
Sending module, for sending described control information and the cyclic redundancy check bits through scrambling on a Physical Downlink Control Channel.
The embodiment of the present invention also provides a kind of subscriber equipment, comprising:
Control information receiver module, for receiving the control information of different carrier and the cyclic redundancy check bits through scrambling on a Physical Downlink Control Channel;
Descrambling module, for being carried out to cyclic redundancy check (CRC), the control information of described different carrier obtains the first cyclic redundancy check bits of different carrier, and adopt the cyclic redundancy check bits through scrambling of different carrier described in different scramble information descramblings, obtain the second cyclic redundancy check bits of described different carrier;
Control information obtains module, for identical in the situation that, obtaining the control information of each carrier wave of described subscriber equipment with the second cyclic redundancy check bits in described the first cyclic redundancy check bits.
Above-described embodiment is by the CRC bit of different scramble information scrambling different carriers, make scramble information corresponding one by one with carrier wave, realize the differentiation to same equipment different carrier, make UE side can obtain by a PDCCH control information of this equipment different carrier, realize the upper control to multiple descending or up-link carriers of a descending carrier PDCCH, farthest keep backward compatibility, and can significantly not increase the processing complexity of UE.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
brief description of the drawings
Fig. 1 is the schematic diagram of control information transmitting procedure in prior art;
Fig. 2 is symmetrical carrier aggregation schematic diagram in prior art;
Fig. 3 A, Fig. 3 B are asymmetric carrier aggregation schematic diagram in prior art;
The flow chart of the method for a kind of control information transmission that Fig. 4 provides for the embodiment of the present invention;
The schematic diagram of the method for the another kind of control information transmission that Fig. 5 provides for the embodiment of the present invention;
The flow chart of the method for a kind of receiving control information that Fig. 6 provides for the embodiment of the present invention;
The structural representation of a kind of base station that Fig. 7 provides for the embodiment of the present invention;
The structural representation of a kind of subscriber equipment that Fig. 8 provides for the embodiment of the present invention.
Embodiment
The flow chart of the method for a kind of control information transmission that Fig. 4 provides for the embodiment of the present invention.The method comprises:
Step 41, adopt the CRC bit of different scramble information scrambling different carriers; The CRC bit of described different carrier obtains by the control information CRC to different carrier;
Step 42, send described control information and through the CRC bit of scrambling.
The present embodiment is by the CRC bit of different scramble information scrambling different carriers, make scramble information corresponding one by one with carrier wave, realize the differentiation to same equipment different carrier, make UE side can obtain by a PDCCH control information of this equipment different carrier, realize the upper control to multiple descending or up-link carriers of a descending carrier PDCCH, farthest keep backward compatibility, and can significantly not increase the processing complexity of UE.
Above-mentioned steps 41, step 42 can be carried out as eNB by base station.
In above-mentioned steps 41, base station can be each available carrier wave of UE and distributes a C-RNTI, use the control information for the each carrier wave of C-RNTI scrambling of allocation of carriers, like this, adopt the scrambling mode of existing LTE PDCCH just can realize the differentiation to different carrier control message; Or can be existing for UE distributes on the basis of C-RNTI, the control information of corresponding carrier wave is carried out to scrambling by carrier identification as carrier wave label simultaneously.Keep the C-RNTI method of salary distribution taking UE as granularity in LTE system, but use CRNTI and the common scrambling of carrier identification in the time of PDCCHDCI load scrambling, realize the differentiation to multiple carrier waves.
When base station distributes carrier wave corresponding to different C-RNTI to UE, can C-RNTI be shown to instruction is to terminal by message, also C-RNTI can be indicated to terminal by implicit expression, send C-RNTI to UE without base station, UE side adopts the mode identical with base station side to calculate the C-RNTI that obtains each carrier wave.
While showing instruction by message, can comprise two kinds of modes of semi-static configuration and dynamic-configuration.
Under semi-static configuration mode, before UE sets up business, be UE each available (available) allocation of carriers C-RNTI according to information such as UE abilities by base station.This configuration if UE under this base station in connection status continuously effective, until have new configuration messages or UE to be switched to other base stations or UE (Idle) state that enters the free time, discharge C-RNTI.
Under dynamic-configuration mode, base station sends to UE by carrier management message by C-RNTI.Increase/delete at carrier wave/while switching, the C-RNTI that dynamic-configuration this carrier wave in base station uses, and send to UE by carrier management message.
While instruction by implicit expression, interim C-RNTI (T-C-RNTI) is distributed in base station in the time that UE accesses at random, accesses successful UE and is entering after connection (connect) state and T-C-RNTI can become a full member as initial C-RNTI.Under carrier aggregation scene, base station all can produce the C-RNTI on other carrier waves by described initial C-RNTI with the successful UE of access.
For example: base station according to the label spacing parameter m of UE available carrier wave quantity, initial C-RNTI and each carrier wave, is calculated the C-RNTI that each carrier wave uses with the successful UE of access.Suppose that the successful UE available carrier wave of this access quantity is 5, initial C-RNTI is that 101, m equals 2.If base station and UE side are all each allocation of carriers C-RNTI by the ascending order of each available carrier wave label, the C-RNTI of the carrier wave of label minimum is initial C-RNTI, is 101, and the C-RNTI of other carrier waves is according to formula C-RNTI
k=C-RNTI
int+ m × CarrierIndex
kcalculate and obtain.Wherein C-RNTI
intfor the initial C-RNTI distributing after the random access of UE, CarrierIndex
kfor carrier wave label, C-RNTI
kfor the C-RNTI of the label carrier wave that is k, the label spacing parameter that m is each carrier wave.The C-RNTI of other carrier waves is followed successively by 103,105,107,109 by carrier wave label ascending order.Thereby base station and UE all obtain the C-RNTI of each carrier wave and are respectively 101,103,105,107,109.Base station and UE can be also each allocation of carriers C-RNTI by the descending of carrier wave label.As passed through formula C-RNTI
k=C-RNTI
int-m × CarrierIndex
kobtain successively the C-RNTI:93,95,97,99,101 of each carrier wave.Wherein, carrier wave label is synchronous in base station side and UE side, can be also that UE is informed by modes such as broadcast in base station, and can also be that both sides are default carries out label by the liter of carrier frequency point (falling) order to carrier wave.
Implicit expression instruction also can comprise semi-static configuration and two kinds of modes of dynamic-configuration.
Under semi-static configuration mode, if UE under this base station in connection status, C-RNTI will continuously effective, until available carrier wave changes or UE is switched to other base stations or UE enters Idle state, base station and UE both sides discharge C-RNTI.
Under dynamic-configuration mode, base station and UE configure carrier wave according to UE, and the C-RNTI of the each carrier wave of dynamic calculation, as passed through above-mentioned formula C-RNTI
k=C-RNTI
int+ m × CarrierIndex
kor C-RNTI
k=C-RNTI
int-m × CarrierIndex
kcalculate and obtain.
Need to again match C-RNTI in the time having carrier wave delete or increase, switch time, after carrier wave dynamic-configuration, base station and UE both sides calculate respectively the C-RNTI of each carrier wave according to carrier wave label.
In above-mentioned steps 41, when C-RNTI and the common scrambling control information of carrier wave label are used in base station, transmitting procedure as shown in Figure 5, comprises step 50～step 56.Wherein step 50, step 51, step 53, step 54, step 56 can be with above-mentioned steps 10, step 11, step 13, step 14, step 16.In step 52, eNB adopts C-RNTI and the common scrambling CRC of carrier wave label bit.Correspondingly, in step 55, UE adopts C-RNTI and the common descrambling of carrier wave label to obtain CRC bit.Because carrier wave label is 10, scramble sequence is the binary system of 16, and wherein 16 the 16th be lowest order, 1 to be the 1st be highest order, the binary sequence of carrier wave label is 0000000000001010.The 16th of the sky line options carrier wave label of uplink UE is carried out scrambler, scrambling is carried out in the 12-15 position of the base station selected carrier wave label i.e. CRC bit of 0101 pair of corresponding carrier wave, the 12-15 position that UE side is selected carrier wave label 0101 pair of corresponding carrier wave carry out descrambling through the CRC of scrambling bit.
The flow chart of the method for a kind of receiving control information that Fig. 6 provides for the embodiment of the present invention.The present embodiment is corresponding with said method embodiment, and the method comprises:
The CRC bit of step 61, the control information that receives different carrier and process scrambling;
Step 62, the control information of described different carrier is carried out to CRC obtain a CRC bit of different carrier, and adopt the CRC bit through scrambling of different carrier described in different scramble information descramblings, obtain the 2nd CRC bit of described different carrier;
Step 63, identical in the situation that, obtain the control information of each carrier wave with the 2nd CRC bit at a described CRC bit.
Above-mentioned steps 61, step 62, step 63 can be carried out by UE.
In above-mentioned steps 61, the CRC bit through scrambling that UE receives specifically refers to the explanation of above-mentioned steps 41.
In above-mentioned steps 62, UE adopts the CRC bit through scrambling of different carrier described in different scramble information descramblings can comprise the CRC bit that passes through scrambling of different carrier described in the C-RNTI descrambling that adopts different carrier; Or can comprise: the CRC bit through scrambling that adopts each carrier wave described in the C-RNTI of this equipment and the common descrambling of carrier identification of the each carrier wave of this equipment.The C-RNTI of different carrier can be calculated and be obtained by UE, adopt the CRC bit through scrambling of different carrier described in the C-RNTI descrambling of different carrier to comprise: to adopt the initial C-RNTI of base station assigns, and calculate the CRC bit through scrambling of each carrier wave described in the corresponding descrambling of C-RNTI of the described each carrier wave obtaining according to described initial C-RNTI.The C-RNTI of different carrier also can be sent and be obtained by base station, and UE receives the described different scramble information that base station sent to subscriber equipment before setting up business; Or UE receives the described different scramble information that base station sends by carrier management message.Specifically refer to the explanation of above-mentioned demonstration instruction and implicit expression instruction.
In the present embodiment, UE side is corresponding with above-mentioned transmission method embodiment, obtain the CRC bit of different carrier by different scramble information descramblings, thereby obtain the control information of this equipment different carrier by a PDCCH, realize the upper control to multiple descending or up-link carriers of a descending carrier PDCCH, farthest keep backward compatibility, and can significantly not increase the processing complexity of UE.
The structural representation of a kind of base station that Fig. 7 provides for the embodiment of the present invention.This base station can be eNB, comprising: scrambling module 71 and sending module 72.Scrambling module 71 is for adopting the CRC bit of different scramble information scrambling different carriers; As described in scrambling module 71 can be specifically for adopting the CRC bit of different carrier as described in the C-RNTI scrambling of different carrier; Or can be specifically for adopting the CRC bit of each carrier wave described in the common scrambling of carrier identification of the C-RNTI of same subscriber equipment and each carrier wave of described subscriber equipment.The CRC bit of described different carrier obtains by the control information CRC to different carrier.Sending module 72 is for sending described control information and the CRC bit through scrambling.
Show that under indicating mode, the base station that the embodiment of the present invention provides also can comprise: scramble information sending module.This scramble information sending module for sending described different scramble information to subscriber equipment before setting up business; Or for sending described different scramble information by carrier management message.Concrete operations refer to the explanation of above-mentioned demonstration instruction.
In the present embodiment, base station is by the CRC bit of different scramble information scrambling different carriers, make scramble information corresponding one by one with carrier wave, realize the differentiation to same equipment different carrier, make UE side can obtain by a PDCCH control information of this equipment different carrier, realize the upper control to multiple descending or up-link carriers of a descending carrier PDCCH, farthest kept backward compatibility, and can significantly not increase the processing complexity of UE.
The structural representation of a kind of subscriber equipment that Fig. 8 provides for the embodiment of the present invention.This UE comprises: control information receiver module 81, descrambling module 82 and control information obtain module 83.Control information receiver module 81 is for receiving the control information of different carrier and the CRC bit through scrambling.Descrambling module 82 obtains a CRC bit of different carrier for the control information of described different carrier being carried out to CRC, and adopts the CRC bit through scrambling of different carrier described in different scramble information descramblings, obtains the 2nd CRC bit of described different carrier.Described descrambling module 82 can be specifically for the CRC bit through scrambling of different carrier described in the C-RNTI descrambling of employing different carrier; Or can be specifically for adopting the CRC bit through scrambling of each carrier wave described in the C-RNTI of this equipment and the common descrambling of carrier identification of the each carrier wave of this equipment.Control information obtains module 83 for identical in the situation that, obtaining the control information of each carrier wave with the 2nd CRC bit at a described CRC bit.
Show that under indicating mode, the subscriber equipment that the embodiment of the present invention provides also can comprise: scramble information receiver module.The described different scramble information that this scramble information receiver module sent to subscriber equipment before setting up business for receiving base station; Or the described different scramble information sending by carrier management message for receiving base station.Concrete operations refer to the explanation of above-mentioned demonstration instruction.
In the present embodiment, UE side is corresponding with above-mentioned base station embodiment, obtain the CRC bit of different carrier by different scramble information descramblings, thereby obtain the control information of this equipment different carrier by a PDCCH, realize the upper control to multiple descending or up-link carriers of a descending carrier PDCCH, farthest kept backward compatibility, and its processing complexity can significantly not increase.
The technical scheme that above-described embodiment provides makes multicarrier system realize the upper multiple downlink or uplink carrier resources of assignment for a PDCCH, distinguish different downlink or uplink carrier waves, farthest keep backward compatibility, and can significantly not increase the processing complexity of UE.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a method for control information transmission, is characterized in that, comprising:
Adopt the cyclic redundancy check bits of the different carrier of the different same subscriber equipmenies of scramble information scrambling; The cyclic redundancy check bits of described different carrier obtains by the control information cyclic redundancy check (CRC) of the different carrier to described same subscriber equipment;
On a Physical Downlink Control Channel, send described control information and the cyclic redundancy check bits through scrambling.
2. the method for control information transmission according to claim 1, is characterized in that, adopts the cyclic redundancy check bits of the different carrier of the different same subscriber equipmenies of scramble information scrambling, comprising:
The cyclic redundancy check bits of the different carrier of same subscriber equipment described in the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol scrambling of employing different carrier.
3. the method for control information transmission according to claim 2, is characterized in that, adopts the cyclic redundancy check bits of the different carrier of same subscriber equipment described in the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol scrambling of different carrier, comprising:
The initial cell radio network temporary identifier of described same subscriber equipment is distributed in employing, and accords with the cyclic redundancy check bits of each carrier wave described in corresponding scrambling according to the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of each carrier wave that described initial cell radio network temporary identifier calculates the described same subscriber equipment obtaining.
4. according to the method for the control information transmission described in any one in claim 1-3, it is characterized in that, also comprise:
Before setting up business, send described different scramble information to described same subscriber equipment;
Or, also comprise: send described different scramble information by carrier management message.
5. the method for control information transmission according to claim 1, is characterized in that, adopts the cyclic redundancy check bits of the different carrier of the different same subscriber equipmenies of scramble information scrambling, comprising:
Adopt the cyclic redundancy check bits of each carrier wave of same subscriber equipment described in the common scrambling of carrier identification of the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol of described same subscriber equipment and each carrier wave of described same subscriber equipment.
6. a method for receiving control information, is characterized in that, comprising:
Subscriber equipment receives the control information of different carrier and the cyclic redundancy check bits through scrambling on a Physical Downlink Control Channel;
Described subscriber equipment carries out cyclic redundancy check (CRC) and obtains the first cyclic redundancy check bits of different carrier to the control information of described different carrier, and adopt the cyclic redundancy check bits through scrambling of different carrier described in different scramble information descramblings, obtain the second cyclic redundancy check bits of described different carrier;
Described subscriber equipment identical in the situation that, obtains the control information of each carrier wave of described subscriber equipment with the second cyclic redundancy check bits in described the first cyclic redundancy check bits.
7. the method for receiving control information according to claim 6, is characterized in that, adopts the cyclic redundancy check bits through scrambling of different carrier described in different scramble information descramblings, comprising:
The cyclic redundancy check bits through scrambling of different carrier described in the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol descrambling of employing different carrier.
8. the method for receiving control information according to claim 7, is characterized in that, adopts the cyclic redundancy check bits through scrambling of different carrier described in the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol descrambling of different carrier, comprising:
Adopt the initial cell radio network temporary identifier of base station assigns, and accord with the cyclic redundancy check bits through scrambling of each carrier wave described in corresponding descrambling according to the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that described initial cell radio network temporary identifier calculates the described each carrier wave obtaining.
9. according to the method for the receiving control information described in claim 6 or 7, it is characterized in that, also comprise:
Receive the described different scramble information that base station sent to subscriber equipment before setting up business;
Or, also comprise:
Receive the described different scramble information that base station sends by carrier management message.
10. the method for receiving control information according to claim 6, is characterized in that, adopts the cyclic redundancy check bits through scrambling of different carrier described in different scramble information descramblings, comprising:
Adopt the cyclic redundancy check bits through scrambling of each carrier wave described in the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol of this equipment and the common descrambling of carrier identification of the each carrier wave of this equipment.
11. 1 kinds of base stations, is characterized in that, comprising:
Scrambling module, for adopting the cyclic redundancy check bits of different carrier of the different same subscriber equipmenies of scramble information scrambling; The cyclic redundancy check bits of described different carrier obtains by the control information cyclic redundancy check (CRC) of the different carrier to described same subscriber equipment;
Sending module, for sending described control information and the cyclic redundancy check bits through scrambling on a Physical Downlink Control Channel.
12. base stations according to claim 11, is characterized in that, described scrambling module is specifically for the cyclic redundancy check bits of the different carrier of same subscriber equipment described in the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol scrambling of employing different carrier; Or specifically for adopting the cyclic redundancy check bits of each carrier wave of same subscriber equipment described in the common scrambling of carrier identification of the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol of described same subscriber equipment and each carrier wave of described same subscriber equipment.
13. according to the base station described in claim 11 or 12, it is characterized in that, also comprises:
Scramble information sending module, for sending described different scramble information to described same subscriber equipment before setting up business; Or for sending described different scramble information by carrier management message.
14. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Control information receiver module, for receiving the control information of different carrier and the cyclic redundancy check bits through scrambling on a Physical Downlink Control Channel;
Descrambling module, for being carried out to cyclic redundancy check (CRC), the control information of described different carrier obtains the first cyclic redundancy check bits of different carrier, and adopt the cyclic redundancy check bits through scrambling of different carrier described in different scramble information descramblings, obtain the second cyclic redundancy check bits of described different carrier;
Control information obtains module, for identical in the situation that, obtaining the control information of each carrier wave of described subscriber equipment with the second cyclic redundancy check bits in described the first cyclic redundancy check bits.
15. subscriber equipmenies according to claim 14, is characterized in that, described descrambling module is specifically for the cyclic redundancy check bits through scrambling of different carrier described in the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol descrambling of employing different carrier; Or specifically for adopting the cyclic redundancy check bits through scrambling of each carrier wave described in the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol of this equipment and the common descrambling of carrier identification of the each carrier wave of this equipment.
16. according to the subscriber equipment described in claims 14 or 15, it is characterized in that, also comprises:
Scramble information receiver module, the described different scramble information sending to subscriber equipment before setting up business for receiving base station; Or the described different scramble information sending by carrier management message for receiving base station.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110583070A (en) * | 2017-05-04 | 2019-12-17 | 株式会社Ntt都科摩 | HARQ-ACK feedback method, HARQ-ACK extraction method, base station and user equipment |
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| CN103379632B (en) * | 2012-04-19 | 2016-12-28 | 华为技术有限公司 | A kind of signaling method and device |
| CN104170299B (en) * | 2013-03-19 | 2017-11-17 | 华为技术有限公司 | The indicating means and device of control information |
| WO2014179922A1 (en) * | 2013-05-06 | 2014-11-13 | 华为技术有限公司 | Downlink information sending and receiving methods, base station, and user equipment |
| WO2015168873A1 (en) * | 2014-05-07 | 2015-11-12 | 华为技术有限公司 | Sending device, receiving device, and wireless communication method and system |
| WO2016180502A1 (en) | 2015-05-13 | 2016-11-17 | Huawei Technologies Co., Ltd. | Network node, user device and methods thereof |
| CN108206732B (en) * | 2016-12-19 | 2020-09-25 | 维沃移动通信有限公司 | Data transmission method, resource indication information acquisition method, terminal and base station |
| CN108737020B (en) * | 2017-04-25 | 2021-02-12 | 华为技术有限公司 | Information bearing method and device |
| CN109963338B (en) * | 2017-12-25 | 2023-07-21 | 成都鼎桥通信技术有限公司 | Scheduling method and system for uplink carrier in special LTE-FDD cell |
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| CN101123805A (en) * | 2006-08-11 | 2008-02-13 | 华为技术有限公司 | Orthogonal frequency division multiplexing access system and its device, transmission method and terminal |
| CN101478808A (en) * | 2009-01-21 | 2009-07-08 | 中兴通讯股份有限公司 | Downlink control information sending and detecting method |
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| CN110583070A (en) * | 2017-05-04 | 2019-12-17 | 株式会社Ntt都科摩 | HARQ-ACK feedback method, HARQ-ACK extraction method, base station and user equipment |
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| WO2011054274A1 (en) | 2011-05-12 |
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