CN104284445A - Multi-carrier scheduling method and device in D2D system - Google Patents
Multi-carrier scheduling method and device in D2D system Download PDFInfo
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- CN104284445A CN104284445A CN201310287702.8A CN201310287702A CN104284445A CN 104284445 A CN104284445 A CN 104284445A CN 201310287702 A CN201310287702 A CN 201310287702A CN 104284445 A CN104284445 A CN 104284445A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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Abstract
The invention provides a multi-carrier scheduling method and device in a D2D system. According to the method and device, in a cross-carrier scheduling scene, a network transmits carrier directory information used for D2D communication so that UE participating in D2D communication can share the same DCI. In an embodiment, a serving cell transmits a first carrier directory and a second carrier directory, wherein the first carrier directory is used for D2D data receiving, and the second carrier directory is used for data transmission. By means of the technical scheme, the problem that CIFs conflict with one another due to the fact that the UE participating in D2D communication shares the same DCI is solved, and meanwhile the compatibility between the multi-carrier scheduling device and an existing system is maintained to the maximum extent.
Description
Technical field
The present invention relates to device to the scheme of dispatching in device (D2D-Device to Device) system, particularly relate to based on the scheduling scheme of Long Term Evolution (LTE-Long Term Evolution) device to device (D2D-Device to Device) system.
Background technology
In traditional third generation partner program (3GPP – 3rd Generation Partner Project) Long Term Evolution (LTE-Long Term Evolution) system, define two kinds of frame structures, i.e. the frame structure 1 of Frequency Division Duplexing (FDD) (FDD-Frequency Division Duplex) system and the frame structure 2 of time division duplex (TDD-Time Division Duplex) system.The two difference is that each subframe of FDD frame structure is 1 millisecond (ms-millisecond); and TDD system defines 1 ~ 2 special subframe in each frame (10 subframes); special subframe is by downlink synchronization slot, and protection interval, uplink synchronous time slot three part is formed.In LTE system, communication between base station and subscriber equipment (UE-User Equipment) is dispatched by Physical Downlink Control Channel (PDCCH-Physical Downlink Control Channel), and the information of the upper transmission of PDCCH becomes Downlink Control Information (DCI-Downlink Control Information).PDCCH is according to being divided into dynamic dispatching (DS-Dynamic Scheduling) and semi-persistent scheduling (SPS-Semi Persistent Scheduling) dispatching cycle, the former dispatches first resource and distributes, and the periodic scheduling resource of the latter distributes until resource release.Compare with DS, SPS significantly can reduce the expense of PDCCH.
Each DCI and unique wireless network temporary mark (RNTI-Radio Network Temporary Identifier) binding, binding here means:
● the multiple possible position candidate that the physical location of DCI is indicated by RNTI value determines that-UE operates in by blind decoding the physical location that described multiple position candidate finds DCI
● cyclic redundancy check (CRC) (the CRC-Cyclic Redundancy Check) bit of DCI adopts RNTI bit scramble
Type corresponding to the RNTI of DS and SPS is community RNTI(C-RNRI:Cell RNTI respectively), semi-persistent scheduling RNTI(SPS C-RNTI).In general, system is that each UE distributes unique C-RNTI or SPS C-RNTI.
According to the up-downlink direction of institute's scheduling resource, DCI can be divided into uplink scheduling form (format) and descending scheduling form, and the former comprises DCI format 0/4, and the latter comprises DCI format 1/1A/1B/1C/1D/2/2A/2B/2C/2D.For UE, except specifically defined (such as DCI format 0 and DCI format 1A), the size (i.e. bit number) of each DCI format is the size being different from other DCI format.DCI blind decoding-the UE that this characteristic is used to carry out UE side is according to the DCI size determination DCI format demodulated.
In order to improve the peak rate of communication and provide larger dispatching flexibility, 3GPP introduces carrier aggregation (CA-Carrier Aggregation) technology, namely allows UE more than simultaneously transceiving data on a carrier wave.When UE has been configured more than 1 carrier wave, wherein have a carrier wave to be main carrier (PCC-Primary Carrier Component), other have been auxiliary carrier wave (SCC-Secondary Carrier Component).Further, be introduced into 3GPP across carrier dispatching technology, it is that the carrier wave instructions field (CIF-Carrier Indicator Field) that namely DCI increases by 3 bits is used to indicate carrier wave that this DCI dispatches for which in candidate carrier.The CIF-value of PCC is fixed as 0.Whether system is configured in current DCI containing CIF by high-level signaling.
The UE high-level signaling read on PCC obtains the system information of PCC and SCC, and described high-level signaling is wireless heterogeneous networks (RRC-Radio Resource Control) layer signaling.As follows with the relevant signaling of SCC configuration:
-SCellToAddModList-r10: be made up of 1 ~ 4 SCellToAddMod-r10 structure, each SCellToAddMod-r10 structure contains the configuration information of a SCC, the index of such as SCC, descending carrier frequency/bandwidth, the information such as uplink carrier frequencies/bandwidth/transmission mode/power configuration, the index of described SCC is consistent with the CIF-value in scheduling DCI.When UE receives SCellToAddModList-r10, the SCC that UE will be indicated adds in the SCC catalogue of current configuration.
The index of-SCellToReleaseList-r10: be made up of 1 ~ 4 SCellIndex-r10, each SCellIndex-r10 indicates the index of a SCC, described SCC is consistent with the CIF-value in scheduling DCI.When UE receives SCellToReleaseList-r10, for each SCC of its instruction, if belong to the SCC catalogue of current configuration, then shift out from the SCC catalogue of current configuration.
In traditional 3GPP version, transfer of data occurs between base station and subscriber equipment (UE-User Equipment).In 3GPP R12, device is also discussed by project verification device (D2D-Device to Device) communication, and the essential characteristic of D2D allows the transfer of data between UE.For FDD and TDD system, the conclusion that 3GPP reaches wireless access network first working group the 73rd meeting (RAN1#73) is: the UE in D2D system does not allow to receive and dispatch simultaneously.Further, in order to avoid the interference that downlink data communicates to D2D, UE takies the up-link carrier of FDD or the sub-frame of uplink of TDD communicates (TDD descending sub frame needs to be discussed further) for D2D.
In D2D, one needs the problem discussed to be scheduling scheme, and according to the description of 3GPP specification TS22.278, wireless access network should the scheduling of resource of control D2D communication link.The present invention devises the concrete scheduling scheme of D2D communication in across carrier dispatching scene.
Summary of the invention
In order to reduce the expense of PDCCH, one intuitively method be allow participate in D2D communication UE receive same DCI simultaneously, namely D2D receive and dispatch UE share same RNTI.Inventor is found by research, and the method can run into the problem of CIF conflict in across carrier dispatching scene.For the UE carrying out D2D communication, a carrier wave is likely different for the CIF that different UEs configures.Such as, in order to avoid control channel interference, carrier wave is PCC(CIF for the transmission UE of D2D data is 0) and are SCC(CIF for the reception UE of D2D data be not 0).Two or more of CIF configuration conflict carry out the UE of D2D communication to the possible difference of the deciphering of the CIF dispatched in DCI, thus cause the dispatching communication correctly cannot installing described DCI.
The invention discloses the method in a kind of subscriber equipment (UE), wherein, comprise the steps:
A. receive high-level signaling and obtain first carrier catalogue, first carrier catalogue comprises K carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier frequency
B. the first descending control signaling (DCI) is received
C. search the carrier index that carrier wave instructions field (CIF) value of first carrier catalogue neutralization the one DCI is identical, the first carrier of corresponding carriers information instruction is the carrier wave of a DCI scheduling
D. on first carrier according to scheduled reception first data of a DCI
Wherein, described K is greater than 0 integer being less than 9, and described high-level signaling is wireless heterogeneous networks (RRC) layer signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, first carrier catalogue also comprises carrier wave upstream bandwidth, and described carrier wave upstream bandwidth is suitable for a described K carrier information.
D2D communication occurs over just up-link carrier, and therefore only need collocating uplink carrier frequency information, be exactly descending carrier frequency for TDD uplink carrier frequencies, upstream bandwidth is exactly downlink bandwidth.Described high-level signaling is RRC signaling or medium education (MAC-Media Access Control) layer signaling.In above-mentioned steps B, UE will determine the size of a DCI according to described carrier wave upstream bandwidth, then detect a DCI by blind decoding.First data are sent by the pairing UE carrying out D2D communication.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
E. receive high-level signaling and obtain first carrier interpolation catalogue, first carrier adds catalogue and comprises S carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier frequency
Described S is greater than 0 integer being less than 5.
F. first carrier is increased catalogue to add in first carrier catalogue as the first carrier catalogue upgraded.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
G. receive high-level signaling and obtain first carrier release catalogue, first carrier release catalogue comprises R carrier index, and wherein R is greater than 0 integer being less than 5.
H. for each carrier index in first carrier release catalogue, if belong to first carrier catalogue, then from first carrier catalogue, corresponding carrier information is removed
Concrete, according to an aspect of the present invention, it is characterized in that, the described information unit of described carrier information is identical with the corresponding information unit with same carrier wave index that pairing UE is obtained by SCellToAddModList-r10, and described pairing UE carries out the UE that device communicates to device (D2D) with the reception UE of described carrier information.
Described pairing UE is the transmission UE of the first data, and namely the CIF of a DCI configures the carrier index of identical first carrier in described pairing UE.Described pairing UE receives the SCellToAddModList-r10 defined in existing system and obtains carrier index, the information units such as carrier frequency.
Concrete, according to an aspect of the present invention, it is characterized in that, the scheduler object of a DCI comprises pairing UE.
Namely the transmitting-receiving UE carrying out the first data of D2D communication shares a DCI.
Concrete, according to an aspect of the present invention, it is characterized in that, described carrier information also comprises one of at least following information unit:
-transmission mode
-power controls
Described transmission mode comprises the transmission mode of uplink transmission mode 1 and uplink transmission mode 2 and other new definition that communicate for D2D.Described uplink transmission mode 1 is the basic uplink transmission mode in LTE system, corresponding DCI format 0, described uplink transmission mode 2 is uplink transmission mode that support 4 antenna introduced in 3GPP version 10 sends, corresponding DCI format 4, described uplink transmission mode 2 contains fall-back mode and described uplink transmission mode 1.Described power control information unit is used for the power control that D2D data send, and needs to determine according to the power control strategy of D2D, comprises the parameters such as such as power control step-length, maximum transmission power.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
A2. receive SCellToAddModList-r10 acquisition and be used to indicate the second carrier wave catalogue of carrying out with system equipment communicating
B2. the second descending control signaling (DCI) is received
C2. search the carrier index that carrier wave instructions field (CIF) value of the second carrier wave catalogue neutralization the 2nd DCI is identical, the up-link carrier of corresponding carriers information instruction is the carrier wave of the 2nd DCI scheduling.
D2. on described up-link carrier, the second data are sent according to the instruction of the 2nd DCI
Above-mentioned steps A2 is the flow process of existing normalized definition, described second carrier wave catalogue refers to the Scell config directory defined in existing system, SCellToAddModList-r10(and SCellToReleaseList-r10 according to receiving recently) upgrade and determine, describe according to LTE specification, described second carrier wave catalogue is made up of 1 ~ 8 carrier information, and carrier information described in each comprises downlink carrier information and uplink carrier information.The recipient of the second data is system equipment or pairing UE.For TDD system, above-mentioned up-link carrier is also descending carrier.The essence of above-mentioned aspect, is utilize the flow process of existing normalized definition and high-level signaling control UE to send D2D data, and utilizes the reception D2D data of the first carrier catalogue control UE of new definition.
Concrete, according to another aspect of the present invention, it is characterized in that, also comprise the steps:
B1. the 3rd descending control signaling (DCI) is received
C1. search the carrier index that carrier wave instructions field (CIF) value of first carrier catalogue neutralization the 3rd DCI is identical, the 3rd carrier wave of corresponding carriers information instruction is the carrier wave of the 3rd DCI scheduling
D1. on the 3rd carrier wave, the 3rd data are sent according to the instruction of the 3rd DCI.
First carrier catalogue is retrieved for the CIF of D2D data input and data output UE simultaneously.The essence of above-mentioned aspect is the data input and data output utilizing the first carrier catalogue control UE of new definition to carry out D2D.
The invention discloses a kind of method in system equipment, wherein, comprise the steps:
A. send high-level signaling instruction first carrier catalogue, first carrier catalogue comprises K carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier frequency
B. carrier wave instructions field (CIF) bit configuring a DCI is the carrier index of dispatched first carrier in first carrier catalogue
C. the first descending control signaling (DCI) is sent
Wherein, described K is greater than 0 integer being less than 9, and described high-level signaling is wireless heterogeneous networks (RRC) layer signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
E. send high-level signaling instruction first carrier and add catalogue, first carrier adds catalogue and comprises S carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier frequency
Described S is greater than 0 integer being less than 5.
First carrier is increased catalogue and adds in first carrier catalogue as the first carrier catalogue upgraded by system equipment.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
G. send high-level signaling instruction first carrier release catalogue, first carrier release catalogue comprises R carrier index, and wherein R is greater than 0 integer being less than 5.
For each carrier index in first carrier release catalogue, if belong to first carrier catalogue, then from first carrier catalogue, remove corresponding carrier information
Concrete, according to an aspect of the present invention, it is characterized in that, the described information unit of described carrier information is identical with the corresponding information unit with same carrier wave index by SCellToAddModList-r10 being pairing UE configuration, and described pairing UE carries out the UE that device communicates to device (D2D) with the reception UE of described carrier information.
Concrete, according to an aspect of the present invention, it is characterized in that, the scheduler object of a DCI comprises the digital received and sent UE that device communicates to device (D2D).
The digital received and sent UE of described D2D communication realizes sharing a DCI by sharing same RNTI.
Concrete, according to an aspect of the present invention, it is characterized in that, described carrier information also comprises one of at least following information unit:
-transmission mode
-power controls
Concrete, according to an aspect of the present invention, it is characterized in that, first carrier catalogue also comprises carrier wave upstream bandwidth, and described carrier wave upstream bandwidth is suitable for a described K carrier information.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
A2. send SCellToAddModList-r10 instruction and be used to indicate the second carrier wave catalogue of carrying out with system equipment communicating
B2. carrier wave instructions field (CIF) bit configuring the 2nd DCI is the carrier index of dispatched up-link carrier in the second carrier wave catalogue
C2. the 2nd DCI is sent
Above-mentioned steps A2 is the flow process of existing normalized definition, described second carrier wave catalogue refers to the Scell config directory defined in existing system, SCellToAddModList-r10(and SCellToReleaseList-r10 according to receiving recently) upgrade and determine, describe according to LTE specification, described second carrier wave catalogue is made up of 1 ~ 8 carrier information, and carrier information described in each comprises downlink carrier information and uplink carrier information.The essence of above-mentioned aspect, is utilize the flow process of existing normalized definition and high-level signaling control UE to send D2D data, and utilizes the reception D2D data of the first carrier catalogue control UE of new definition.For TDD system, above-mentioned up-link carrier is also descending carrier.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
B1. carrier wave instructions field (CIF) bit configuring the 3rd DCI is the dispatched carrier index of the 3rd carrier wave in first carrier catalogue
C1. the 3rd DCI is sent.
First carrier catalogue is retrieved for the CIF of D2D data input and data output UE simultaneously.The essence of above-mentioned aspect is the data input and data output utilizing the first carrier catalogue control UE of new definition to carry out D2D.
The invention discloses a kind of subscriber equipment (UE), it is characterized in that, this equipment comprises:
First module: receive high-level signaling and obtain first carrier catalogue, first carrier catalogue comprises K carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier wave uplink carrier frequencies
Second module: receive the first descending control signaling (DCI)
3rd module: search the carrier index that carrier wave instructions field (CIF) value of first carrier catalogue neutralization the one DCI is identical, the first carrier of corresponding carriers information instruction is the carrier wave of a DCI scheduling
Four module: according to scheduled reception first data of a DCI on first carrier
Wherein, described K is greater than 0 integer being less than 9, and described high-level signaling is wireless heterogeneous networks (RRC) layer signaling.
As an embodiment, also comprise in the said equipment:
5th module: receive SCellToAddModList-r10 acquisition and be used to indicate the second carrier wave catalogue of carrying out with system equipment communicating
6th module: receive the second descending control signaling (DCI)
7th module: search the carrier index that carrier wave instructions field (CIF) value of the second carrier wave catalogue neutralization the 2nd DCI is identical, the second carrier wave of corresponding carriers information instruction is the carrier wave of the 2nd DCI scheduling
8th module: send the second data according to the instruction of the 2nd DCI on a second carrier
The invention discloses a kind of system side equipment, it is characterized in that, this equipment comprises:
First module: send high-level signaling instruction first carrier catalogue, first carrier catalogue comprises K carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier wave uplink carrier frequencies
Second module: carrier wave instructions field (CIF) bit of configuration the one DCI is the carrier index of dispatched first carrier in first carrier catalogue
3rd module: send the first descending control signaling (DCI)
Wherein, described K is greater than 0 integer being less than 9, and described high-level signaling is wireless heterogeneous networks (RRC) layer signaling.
As an embodiment, also comprise in the said equipment:
Four module: send SCellToAddModList-r10 instruction and be used to indicate the second carrier wave catalogue of carrying out with system equipment communicating
5th module: carrier wave instructions field (CIF) bit of configuration the 2nd DCI is the carrier index of the second dispatched carrier wave in the second carrier wave catalogue
6th module: send the 2nd DCI
To the invention solves in D2D communication UE the problem of same DCI cannot be shared across during carrier dispatching because CIF conflict, by guaranteeing that the UE of the D2D data input and data output that DCI dispatches obtains identical CIF and solves the problems referred to above, save PDCCH resource, the present invention simultaneously at utmost maintains the compatibility with existing system.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more apparent:
Fig. 1 show D2D UE according to an embodiment of the invention receive base station send carrier wave directory information and perform DCI scheduling schematic diagram;
Fig. 2 shows the schematic diagram that base station according to an embodiment of the invention sends two UE sharing DCI scheduling D2D communication;
Fig. 3 shows the schematic diagram that UE1 according to an embodiment of the invention sends UE2 reception;
Fig. 4 shows UE according to an embodiment of the invention and adds according to first carrier the schematic diagram that catalogue upgrades first carrier catalogue;
Fig. 5 shows UE according to an embodiment of the invention upgrades first carrier catalogue schematic diagram according to first carrier release catalogue;
Embodiment
Hereafter will be described in further detail technical scheme of the present invention by reference to the accompanying drawings, and it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Embodiment 1
Embodiment 1 illustrate D2D UE receive base station send carrier wave directory information and according to DCI scheduled reception data, as shown in Figure 1.In accompanying drawing 1, community N1 is the Serving cell of UE U1, and UE U1 participates in D2D communication.For community N1, in step S11, send carrier wave catalogue, described carrier wave catalogue comprises K carrier information, described K is the integer between 1 ~ 8, and wherein each carrier information comprises carrier index, carrier frequency, described carrier wave catalogue also comprises carrier bandwidths, and described carrier bandwidths is suitable for all carrier informations; In step s 12, the CIF bit in DCI is set according to the carrier index of dispatched carrier wave in described carrier wave catalogue; In step s 13, described DCI is sent.
For UE U1, in step S21, receive described carrier wave catalogue; In step S22, receive described DCI, wherein determine the bit number of described DCI according to described carrier bandwidths; In step S23, the carrier index of CIF equivalence in described carrier wave catalogue in search and described DCI, determines the scheduling carrier wave of described DCI according to corresponding carriers information; In step s 24 which, on described scheduling carrier wave according to the scheduled reception data of described DCI.
Embodiment 2
Embodiment 2 illustrates D2D UE and receives the carrier wave directory information of base station transmission and send data according to DCI scheduling, as shown in Figure 1.In accompanying drawing 1, community N1 is the Serving cell of UE U1, and UE U1 participates in D2D communication.
For community N1, in step S11, send SCellToAddModList-r10 and SCellToReleaseList-r10 according to existing normalized definition and indicate up-to-date carrier wave catalogue, described carrier wave catalogue comprises 1 ~ 8 carrier information, wherein each carrier information comprises carrier index, carrier wave upstream frequency, the information such as carrier wave downstream frequency; In step s 12, the CIF bit in DCI is set according to the carrier index of dispatched up-link carrier in described carrier wave catalogue; In step s 13, described DCI is sent.
For UE U1, in step S21, receive described carrier wave catalogue according to existing normalized definition; In step S22, receive described DCI; In step S23, the carrier index of CIF equivalence in described carrier wave catalogue in search and described DCI, the uplink carrier information indicated according to corresponding carriers information determines the scheduling carrier wave of described DCI; In step s 24 which, described scheduling carrier wave sends data according to the scheduling of described DCI.
The essence of embodiment 2 utilizes the flow process of existing normalized definition and high-level signaling control UE to send D2D data.
Embodiment 3
Embodiment 3 illustrates D2D UE and receives the carrier wave directory information of base station transmission and send data according to DCI scheduling, as shown in Figure 1.The difference of embodiment 3 and enforcement 1 is, UE U1 in step s 24 which, described scheduling carrier wave sends data according to the scheduling of described DCI.
Embodiment 3 is replacement schemes of embodiment 2, and its essence defines new carrier wave catalogue control UE to send D2D data.
Embodiment 4
Embodiment 4 illustrates base station and sends two UE that first shares DCI scheduling D2D communication, and wherein UE U1 receives D2D data, and UE U2 sends D2D data, as shown in Figure 2.In accompanying drawing 2, community N1 is the Serving cell of UE U1 and UE U2, and UE U1 and UE U2 carry out D2D and communicate.
For community N1, in step D11 and step D12, transmission first carrier catalogue and the second carrier wave catalogue are to UE U1 respectively; In step D13 and step D14, transmission the 3rd carrier wave catalogue and the 4th carrier wave catalogue are to UE U2 respectively; The CIF bit of the first shared DCI is determined in step D15; In step D16, send first share DCI scheduling UE U2 transmission D2D data to UE U1.First carrier catalogue and the 3rd carrier wave catalogue comprise 1 ~ 8 carrier information respectively, and wherein each carrier information comprises carrier index, carrier frequency; Second carrier wave catalogue and the 4th carrier wave catalogue are indicate up-to-date carrier wave catalogue according to existing specification by SCellToAddModList-r10 and SCellToReleaseList-r10 respectively, comprise 1 ~ 8 carrier information respectively, wherein each carrier information comprises carrier index, carrier wave upstream frequency, the information such as carrier wave downstream frequency.For a up-link carrier, its carrier index in first carrier catalogue and its carrier index in the 4th carrier wave catalogue are identical.For a up-link carrier, its carrier index in the second carrier wave catalogue and its carrier index in the 3rd carrier wave catalogue are identical.In above-mentioned steps D15, search the carrier index of dispatched D2D carrier wave in first carrier catalogue or the 4th carrier wave catalogue, the CIF bit that first shares DCI is set according to the value of described carrier index.
For UE U1, in step D21 and step D22, receive first carrier catalogue and the second carrier wave catalogue respectively; In step D23, receive first share DCI; In step D24, search in first carrier catalogue the carrier information that the CIF-value shared with first in DCI is identical, determine that the carrier wave that described carrier information indicates is the D2D carrier wave that the first shared DCI dispatches; The instruction sharing DCI according to first in step D25 receives data on described D2D carrier wave.
For UE U2, in step D31 and step D32, receive the 3rd carrier wave catalogue and the 4th carrier wave catalogue respectively; In step D33, receive first share DCI; In step D34, search in the 4th carrier wave catalogue the carrier information that the CIF-value shared with first in DCI is identical, determine that the carrier wave that described carrier information indicates is the D2D carrier wave that the first shared DCI dispatches; The instruction sharing DCI according to first in step D35 sends data on described D2D carrier wave.
For a up-link carrier, its carrier index in first carrier catalogue and its carrier index in the 4th carrier wave catalogue are identical, so can not produce the problem of CIF conflict.
Embodiment 5
Embodiment 5 illustrates the subsequent communications step of the step based on embodiment 4, and namely UE U1 sends D2D data, and UE U2 receives D2D data, as shown in Figure 3.
For community N1, in step D17, determine the CIF bit of the second shared DCI; In step D18, send second share DCI scheduling UE U1 transmission D2D data to UE U2.In above-mentioned steps D17, search the carrier index of dispatched D2D carrier wave in the second carrier wave catalogue or the 3rd carrier wave catalogue, the CIF bit that second shares DCI is set according to the value of described carrier index.
For UE U1, in step D26, receive second share DCI; In step D27, search in the second carrier wave catalogue the carrier information that the CIF-value shared with second in DCI is identical, determine that the carrier wave that described carrier information indicates is the D2D carrier wave that the second shared DCI dispatches; The instruction sharing DCI according to second in step D28 sends data on described D2D carrier wave.
For UE U2, in step D36, receive second share DCI; In step D37, search in the 4th carrier wave catalogue the carrier information that the CIF-value shared with second in DCI is identical, determine that the carrier wave that described carrier information indicates is the D2D carrier wave that the second shared DCI dispatches; The instruction sharing DCI according to second in step D38 receives data on described D2D carrier wave.
Embodiment 6
Embodiment 6 illustrates UE and adds catalogue renewal first carrier catalogue according to first carrier, as shown in Figure 4.
For community N1, in step P11, send first carrier add catalogue, comprising 1 ~ 4 carrier information, wherein each carrier information comprises carrier index, carrier frequency.
For UE U1, receive first carrier and add catalogue in step P21, in step P22, using first carrier, the carrier information added in catalogue adds in the first carrier catalogue of current configuration as the first carrier catalogue upgraded.
Described first carrier adds the newly-increased carrier information that catalogue has reacted the carrier wave catalogue of the pairing UE of UE U1.It is because the information of SCellToAddModList-r10 comprises at most 4 auxiliary carrier informations in existing standard that first carrier interpolation catalogue comprises at most 4 carrier informations.
Embodiment 7
Embodiment 7 illustrates UE and upgrades first carrier catalogue according to first carrier release catalogue, as shown in Figure 5.
For community N1, in step P12, send first carrier release catalogue, comprising 1 ~ 4 carrier information, wherein each carrier information comprises carrier index, carrier frequency.
For UE U1, first carrier release catalogue is received in step P23, in step P24, for each carrier information in first carrier release catalogue, if find the carrier information with same carrier wave index from the first carrier catalogue of current configuration, then described carrier information is discharged, finally obtain the first carrier catalogue upgraded.
Described first carrier release catalogue has reacted the carrier information of the release of the carrier wave catalogue of the pairing UE of UE U1.It is because the information of SCellToRealeaseList-r10 comprises at most 4 auxiliary carrier informations in existing standard that first carrier release catalogue comprises at most 4 carrier informations.
The all or part of step that one of ordinary skill in the art will appreciate that in said method can be carried out instruction related hardware by program and complete, and described program can be stored in computer-readable recording medium, as read-only memory, and hard disk or CD etc.Optionally, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Accordingly, each modular unit in above-described embodiment, can adopt example, in hardware to realize, and also can be realized by the form of software function module, the application is not limited to the combination of the software and hardware of any particular form.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improves, all should be included within protection scope of the present invention.
Claims (22)
1. the method in subscriber equipment (UE), wherein, comprises the steps:
A. receive high-level signaling and obtain first carrier catalogue, first carrier catalogue comprises K carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier frequency
B. the first descending control signaling (DCI) is received
C. search the carrier index that carrier wave instructions field (CIF) value of first carrier catalogue neutralization the one DCI is identical, the first carrier of corresponding carriers information instruction is the carrier wave of a DCI scheduling
D. on first carrier according to scheduled reception first data of a DCI
Wherein, described K is greater than 0 integer being less than 9, and described high-level signaling is wireless heterogeneous networks (RRC) layer signaling.
2. method according to claim 1, is characterized in that, also comprises the steps:
E. receive high-level signaling and obtain first carrier interpolation catalogue, first carrier adds catalogue and comprises S carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier frequency
Described S is greater than 0 integer being less than 5.
F. first carrier is increased catalogue to add in first carrier catalogue as the first carrier catalogue upgraded.
3. method according to claim 1, is characterized in that, also comprises the steps:
G. receive high-level signaling and obtain first carrier release catalogue, first carrier release catalogue comprises R carrier index, and wherein R is greater than 0 integer being less than 5.
H. for each carrier index in first carrier release catalogue, if belong to first carrier catalogue, then from first carrier catalogue, corresponding carrier information is removed.
4. method according to claims 1 to 2, it is characterized in that, the described information unit of described carrier information is identical with the corresponding information unit with same carrier wave index that pairing UE is obtained by SCellToAddModList-r10, and described pairing UE carries out the UE that device communicates to device (D2D) with the reception UE of described carrier information.
5. method according to claim 1, is characterized in that, the scheduler object of a DCI comprises pairing UE.
6. method according to claim 1, is characterized in that, described carrier information also comprises one of at least following information unit:
-transmission mode
-power controls.
7. method according to claim 1, is characterized in that, first carrier catalogue also comprises carrier wave upstream bandwidth, and described carrier wave upstream bandwidth is suitable for a described K carrier information.
8. method according to claim 1, is characterized in that, also comprises the steps:
A2. receive SCellToAddModList-r10 acquisition and be used to indicate the second carrier wave catalogue of carrying out with system equipment communicating
B2. the second descending control signaling (DCI) is received
C2. search the carrier index that carrier wave instructions field (CIF) value of the second carrier wave catalogue neutralization the 2nd DCI is identical, the up-link carrier of corresponding carriers information instruction is the carrier wave of the 2nd DCI scheduling.
D2. on described up-link carrier, the second data are sent according to the instruction of the 2nd DCI.
9. method according to claim 1, is characterized in that, also comprises the steps:
B1. the 3rd descending control signaling (DCI) is received
C1. search the carrier index that carrier wave instructions field (CIF) value of first carrier catalogue neutralization the 3rd DCI is identical, the 3rd carrier wave of corresponding carriers information instruction is the carrier wave of the 3rd DCI scheduling
D1. on the 3rd carrier wave, the 3rd data are sent according to the instruction of the 3rd DCI.
10. the method in system equipment, wherein, comprises the steps:
A. send high-level signaling instruction first carrier catalogue, first carrier catalogue comprises K carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier frequency
B. carrier wave instructions field (CIF) bit configuring a DCI is the carrier index of dispatched first carrier in first carrier catalogue
C. the first descending control signaling (DCI) is sent
Wherein, described K is greater than 0 integer being less than 9, and described high-level signaling is wireless heterogeneous networks (RRC) layer signaling.
11. methods according to claim 10, is characterized in that, also comprise the steps:
E. send high-level signaling instruction first carrier and add catalogue, first carrier adds catalogue and comprises S carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier frequency
Described S is greater than 0 integer being less than 5.
12. methods according to claim 10, is characterized in that, also comprise the steps:
G. send high-level signaling instruction first carrier release catalogue, first carrier release catalogue comprises R carrier index, and wherein R is greater than 0 integer being less than 5.
13. according to the method described in claim 10 ~ 11, it is characterized in that, the described information unit of described carrier information is identical with the corresponding information unit with same carrier wave index by SCellToAddModList-r10 being pairing UE configuration, and described pairing UE carries out the UE that device communicates to device (D2D) with the reception UE of described carrier information.
14. methods according to claim 10, is characterized in that, the scheduler object of a DCI comprises the digital received and sent UE that device communicates to device (D2D).
15. methods according to claim 10, is characterized in that, described carrier information also comprises one of at least following information unit:
-transmission mode
-power controls.
16. methods according to claim 10, is characterized in that, first carrier catalogue also comprises carrier wave upstream bandwidth, and described carrier wave upstream bandwidth is suitable for a described K carrier information.
17. methods according to claim 10, is characterized in that, also comprise the steps:
A2. send SCellToAddModList-r10 instruction and be used to indicate the second carrier wave catalogue of carrying out with system equipment communicating
B2. carrier wave instructions field (CIF) bit configuring the 2nd DCI is the carrier index of dispatched up-link carrier in the second carrier wave catalogue
C2. the 2nd DCI is sent.
18. methods according to claim 10, is characterized in that, also comprise the steps:
B1. carrier wave instructions field (CIF) bit configuring the 3rd DCI is the dispatched carrier index of the 3rd carrier wave in first carrier catalogue
C1. the 3rd DCI is sent.
19. 1 kinds of subscriber equipmenies (UE), it is characterized in that, this equipment comprises:
First module: receive high-level signaling and obtain first carrier catalogue, first carrier catalogue comprises K carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier wave uplink carrier frequencies
Second module: receive the first descending control signaling (DCI)
3rd module: search the carrier index that carrier wave instructions field (CIF) value of first carrier catalogue neutralization the one DCI is identical, the first carrier of corresponding carriers information instruction is the carrier wave of a DCI scheduling
Four module: according to scheduled reception first data of a DCI on first carrier
Wherein, described K is greater than 0 integer being less than 9, and described high-level signaling is wireless heterogeneous networks (RRC) layer signaling.
20. equipment according to claim 19, is characterized in that, also comprise:
5th module: receive SCellToAddModList-r10 acquisition and be used to indicate the second carrier wave catalogue of carrying out with system equipment communicating
6th module: receive the second descending control signaling (DCI)
7th module: search the carrier index that carrier wave instructions field (CIF) value of the second carrier wave catalogue neutralization the 2nd DCI is identical, the second carrier wave of corresponding carriers information instruction is the carrier wave of the 2nd DCI scheduling
8th module: send the second data according to the instruction of the 2nd DCI on a second carrier.
21. 1 kinds of system side equipment, is characterized in that, this equipment comprises:
First module: send high-level signaling instruction first carrier catalogue, first carrier catalogue comprises K carrier information, and a described carrier information at least comprises following information unit:
-carrier index
-carrier wave uplink carrier frequencies
Second module: carrier wave instructions field (CIF) bit of configuration the one DCI is the carrier index of dispatched first carrier in first carrier catalogue
3rd module: send the first descending control signaling (DCI)
Wherein, described K is greater than 0 integer being less than 9, and described high-level signaling is wireless heterogeneous networks (RRC) layer signaling.
22. equipment according to claim 21, is characterized in that, also comprise:
Four module: send SCellToAddModList-r10 instruction and be used to indicate the second carrier wave catalogue of carrying out with system equipment communicating
5th module: carrier wave instructions field (CIF) bit of configuration the 2nd DCI is the carrier index of the second dispatched carrier wave in the second carrier wave catalogue
6th module: send the 2nd DCI.
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