CN104754537A - Method and device for transmitting and receiving network-assisted signals - Google Patents
Method and device for transmitting and receiving network-assisted signals Download PDFInfo
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- CN104754537A CN104754537A CN201310745344.0A CN201310745344A CN104754537A CN 104754537 A CN104754537 A CN 104754537A CN 201310745344 A CN201310745344 A CN 201310745344A CN 104754537 A CN104754537 A CN 104754537A
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0028—Variable division
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0092—Indication of how the channel is divided
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
Abstract
The invention provides a method and a device for transmitting and receiving network-assisted signals. The method comprises the steps that a first base station sends downlink control signals through a physical downlink control channel or a strengthened physical downlink control channel, wherein information carried by the downlink control signals includes, at least information indicating whether a dispatch user exists or not and/or information indicating a downlink transmission parameter of the dispatch user. The downlink control signals are directly sent to a user terminal through the first base station, the base station in a residential quarter where the user terminal is located is not needed, and accordingly signaling expenditure of an X2 interface is reduced.
Description
Technical field
The present invention relates to mobile communication technology, espespecially a kind of method and device sending and receive network assistance signaling.
Background technology
Presence of intercell interference is an intrinsic problem of cell mobile communication systems, and traditional solution adopts channeling, by allowing neighbor cell use different carrier frequency, avoids the interference problem between neighbor cell.At OFDM (OFDM, Orthogonal Frequency Division Multiplexing) in system, frequency reuse is 1, and namely neighbor cell uses identical carrier frequency, and the problem of inter-cell interference brought also can be more complicated than traditional frequency reuse system.Long Term Evolution (LTE, Long TermEvolution) be system based on OFDM technology, the randomization of main employing presence of intercell interference, interference are avoided solving interference problem with coordination technique, by the mode such as precoding, cooperative scheduling of network side, realize avoiding of interference at transmitter side.But the interference based on transmitting terminal cooperates, depend on the accuracy of the channel condition information (CSI, Channel State Information) of feedback to a great extent.By the restriction of feedback signaling overhead and the impact of feedback processing time delay, the delay problem of back haul link also can affect the effect of minizone cooperation greatly simultaneously, current LTE system can not solve interference problem completely based on the method for transmitting terminal interference cooperation, how effectively eliminating and to suppress the interference between minizone and user, is the follow-up important directions effectively improving spectrum efficiency further.
In LTE system, employing be that public reference signal (CRS, Common Reference Signal) carries out pilot measurement and data demodulates, namely all users use CRS to carry out channel estimating.When adopting the precoding processing mode based on CRS, concrete pre-coding matrix (also can the be called precoding weights) information used when needing transmitting terminal additional notifications receiving terminal data to send, and also the expense of pilot tone is larger.In addition, in multi-user's multiple-input and multiple-output (MU-MIMO, Multi-user Multi-inputMulti-output) system, because multiple terminal uses identical CRS, the orthogonal of pilot tone cannot be realized, therefore, be unable to estimate interference.
Long Term Evolution (the LTE-A strengthened, Advanced Long Term Evolution) in system, in order to reduce pilot-frequency expense and improve channel estimation accuracy, pilot measurement and data demodulates function are separated, respectively define two class reference signals, i.e. demodulated reference signal (DMRS, Demodulation ReferenceSignal) and channel state information reference signals (CSI-RS, Channel State InformationReferenced Signal).Wherein, CSI-RS is mainly used in channel measurement to obtain channel quality information (CQI, Channel Quality Information) and feed back, so that base station side can utilize this information completing user dispatch and realize modulation coding mode (MCS, Modulation and Coding Scheme) self-adjusted block, do not carry precoding information in the transmission of CSI-RS; And DMRS is mainly used in Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel) and strengthen Physical Downlink Control Channel (ePDCCH, enhanced Physical Downlink Control Channel) channel estimating to complete the demodulation of data/control channel, the transmission of DMRS carries the precoding information of corresponding PDSCH/ePDCCH.LTE and lte-a system can be divided into Frequency Division Duplexing (FDD) (FDD according to the difference of up-downgoing duplex mode, Frequency Division Duplex) and time division duplex (TDD, Time Division Duplex) system, the pattern of CSI-RS and DMRS of FDD and TDD system can difference to some extent.
In the senior receiver research of receiving terminal, senior receiver mainly can be divided into several types: least mean-square error-AF panel combines (MMSE-IRC, Minimum Mean SquareError-Interference Rejection Combining) receiver, interference eliminate (IC, InterferenceCancellation) receiver, maximum likelihood (ML, Maximum Likelihood) receiver.Receiver, when carrying out area interference and eliminating, needs network side to provide the relevant information of interference source to receiver.Such as, for MMSE-IRC receiver, network side needs the initiation parameter (comprising scrambler ID, virtual subdistrict ID, physical district ID etc.) providing interference demodulated reference signal (DMRS, the Demodulation Reference Signal) port information that UE uses, DMRS to object UE; For IC and ML receiver, network side, except providing the above-mentioned information required by MMSE-IRC, also needs the modulation system or the MCS information that provide interference source.
The method that existing network side direction UE sends the information of interference source is: the base station of interfered cell is sent control signaling by the base station of X2 interface to the community at UE place, and control signal is transmitted to UE by eating dishes without rice or wine by the base station of the community at UE place again.The X2 interface signaling consumption that the method consumption is a large amount of and space interface signaling expense, and cause larger time delay, advanced receiver techniques finally can be made to be difficult to be applied in real system.Particularly under the network condition of Non-ideal backhaul, internodal propagation delay time is larger, as dynamic parameters such as DMRS port information, modulation system or MCS, is not adapted at transmitting in the X2 interface in non-idealbackhaul situation.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes a kind of method and the device that send and receive network assistance signaling, the signaling consumption of X2 interface can be reduced.
In order to achieve the above object, the present invention proposes a kind of method sending network assistance signaling, the method comprises:
First base station sends descending control signaling by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
Preferably, also comprise before the method:
Described first base station uses the cyclic redundancy check CRC of publicly-owned Radio Network Temporary Identifier RNTI to described descending control signaling to carry out scrambling.
Preferably, indicate whether described in that the information that there is dispatched users is: indicate the information whether described first place, base station cell system bandwidth each subband interior or each Physical Resource Block existing dispatched users.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises following one or more:
Indicate each subband in described first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband or downlink transfer pattern corresponding to Physical Resource Block in described first place, the base station cell system bandwidth of instruction;
Described downlink transfer pattern is based on the transmission mode of public reference signal CRS or the transmission mode based on demodulated reference signal DMRS.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband or precoding information corresponding to Physical Resource Block in described first place, the base station cell system bandwidth of instruction;
Described precoding information comprise following one or more:
The information of the pre-coding matrix index indicating described dispatched users to use, the number of plies amount that dispatched users described in joint instructions uses, the information of pre-coding matrix index, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
Preferably, the form of described descending control signaling is Downlink Control Information DCI format format1X or format2X or format Y or format3Z, and wherein X represents that E or F or G or H, Y represent that 5 or 6 or 7 or 8, Z represent B or C or D or E.
Preferably, also comprise before the method:
Described first base station by between base station or node interface receive and carry out disturbing second base station of eliminating or suppress by between base station or node interface from request network assistance, or after the solicited message that the user terminal of the second community, place, base station sends, by between base station or node interface to described second base station feedback network-assist information;
Between described base station or node interface comprise: X2 interface or optical fiber interface.
Preferably, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Described second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
Preferably, described network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
Preferably, the range information residing for C-RNTI of described instruction first base station institute dispatched users is the C-RNTI of two different numerical value or the absolute value of described C-RNTI and relative value.
Preferably, the method also comprises:
Described first base station or described second base station are in transmission mode M by user terminal described in high-rise radio resource control RRC signal deployment or described dispatched users, and M is one in the integer of 11 to 15.
Preferably, described second base station sends the subframe configuration information needing to do interference elimination or suppress to described dispatched users by high-rise RRC signaling.
The present invention also proposes a kind of method receiving network assistance signaling, and the method comprises:
User terminal receives and sends descending control signaling from the first base station by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
Preferably, indicate whether described in that the information that there is dispatched users is: indicate the information whether described first place, base station cell system bandwidth each subband interior or each Physical Resource Block existing dispatched users.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises following one or more:
Indicate each subband in described first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband or downlink transfer pattern corresponding to Physical Resource Block in described first place, the base station cell system bandwidth of instruction;
Described downlink transfer pattern is based on the transmission mode of public reference signal CRS or the transmission mode based on demodulated reference signal DMRS.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband or precoding information corresponding to Physical Resource Block in described first place, the base station cell system bandwidth of instruction;
Described precoding information comprise following one or more:
The information of the pre-coding matrix index indicating described dispatched users to use, the number of plies amount that dispatched users described in joint instructions uses, the information of pre-coding matrix index, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
Preferably, also comprise before the method:
Request network assistance carry out disturb eliminate or suppress the second base station by between base station or node interface to described first base station transmission request information;
By between base station or node interface receive from described first base station by between base station or the network-assist information of node interface feedback;
Between described base station or node interface comprise: X2 interface or optical fiber interface.
Preferably, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Described second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
Preferably, described network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
Preferably, the range information residing for C-RNTI of described instruction first base station institute dispatched users is the C-RNTI of two different numerical value or the absolute value of described C-RNTI and relative value.
Preferably, also comprise after the method:
Network-assist information is sent to described user terminal by the physical control channel of physical control channel or enhancing or high-rise RRC signaling by described second base station, and described user terminal carries out blind Detecting according to the network-assist information received to the descending control signaling that described first base station sends.
The present invention also proposes a kind of device sending network assistance signaling, at least comprises:
Sending module, sends descending control signaling for the Physical Downlink Control Channel by Physical Downlink Control Channel or enhancing; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
Preferably, also comprise:
Scrambling module, carries out scrambling for using the cyclic redundancy check CRC of publicly-owned Radio Network Temporary Identifier RNTI to described descending control signaling;
Described sending module, specifically for: send the descending control signaling after scrambling by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing.
Preferably, indicate whether described in that the information that there is dispatched users is: indicate the information whether described first place, base station cell system bandwidth each subband interior or each Physical Resource Block existing dispatched users.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises following one or more:
Indicate each subband in described first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband or precoding information corresponding to Physical Resource Block in described first place, the base station cell system bandwidth of instruction;
Described precoding information comprise following one or more:
The information of the pre-coding matrix index indicating described dispatched users to use, the number of plies amount that dispatched users described in joint instructions uses, the information of pre-coding matrix index, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
Preferably, also comprise:
Receiver module, for by between base station or node interface receive and carry out disturbing second base station of eliminating or suppress by between base station or node interface from request network assistance, or the solicited message that the user terminal of the second community, place, base station sends;
Described sending module, also for:
By between base station or node interface to described second base station feedback network-assist information.
Preferably, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Described second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
Preferably, described network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
Preferably, also comprise:
Configuration module, for being in transmission mode M by user terminal described in high-rise radio resource control RRC signal deployment or described dispatched users, M is one in the integer of 11 to 15.
The invention allows for a kind of device receiving network assistance signaling, at least comprise:
Receiver module, sends descending control signaling from the first base station by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing for receiving; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
Preferably, indicate whether described in that the information that there is dispatched users is: indicate the information whether described first place, base station cell system bandwidth each subband interior or each Physical Resource Block existing dispatched users.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises following one or more:
Indicate each subband in described first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband or downlink transfer pattern corresponding to Physical Resource Block in described first place, the base station cell system bandwidth of instruction;
Described downlink transfer pattern is based on the transmission mode of public reference signal CRS or the transmission mode based on demodulated reference signal DMRS.
Preferably, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband or precoding information corresponding to Physical Resource Block in described first place, the base station cell system bandwidth of instruction;
Described precoding information comprise following one or more:
The information of the pre-coding matrix index indicating described dispatched users to use, the number of plies amount that dispatched users described in joint instructions uses, the information of pre-coding matrix index, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
Preferably, also comprise:
Sending module, for by between base station or node interface to described first base station transmission request information; ;
Described receiver module, also for by between base station or node interface receive from described first base station by between base station or the network-assist information of node interface feedback;
Between described base station or node interface comprise: X2 interface or optical fiber interface.
Preferably, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Described second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
Preferably, described network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
Preferably, also comprise:
Descrambling module, for carrying out blind Detecting according to the network-assist information received to the descending control signaling that described first base station sends.
Compared with prior art, the present invention includes: the first base station sends descending control signaling by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.By the solution of the present invention, descending control signaling is directly sent to user terminal by the first base station, and does not need to be sent by the base station of community, user terminal place, thus decreases the signaling consumption of X2 interface.
Accompanying drawing explanation
Be described the accompanying drawing in the embodiment of the present invention below, the accompanying drawing in embodiment is for a further understanding of the present invention, is used from explanation the present invention, does not form limiting the scope of the invention with specification one.
Fig. 1 is the flow chart that the present invention sends the method for network assistance signaling;
Fig. 2 is the flow chart that the present invention receives the method for network assistance signaling;
Fig. 3 is the structure composition diagram of the device of transmission network assistance signaling of the present invention;
Fig. 4 is the structure composition diagram of the device of reception network assistance signaling of the present invention.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing, the invention will be further described, can not be used for limiting the scope of the invention.
See Fig. 1, the present invention proposes a kind of method sending network assistance signaling, comprising:
Step 100, the first base station send descending control signaling by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing; The information that descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
In this step, the form of descending control signaling is Downlink Control Information (DCI, Downlink ControlInfornation) form format1X or DCI format2X or DCI format Y or DCI format3Z, wherein X represents E or F or G or H, Y represents that 5 or 6 or 7 or 8, Z represent B or C or D or E.
In this step, indicate whether that the information that there is dispatched users is: indicate the information whether the first place, base station cell system bandwidth each subband interior or each Physical Resource Block existing dispatched users.
In this step, the information of downlink transfer parameter of instruction dispatched users comprises following one or more:
Indicate each subband in the first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
In this step, the information of downlink transfer parameter of instruction dispatched users comprises each subband in the cell system bandwidth of place, instruction first base station or downlink transfer pattern corresponding to Physical Resource Block; Downlink transfer pattern is the transmission mode based on CRS or the transmission mode based on DMRS.
Wherein, modulation system can be Quadrature Phase Shift Keying (QPSK, Quadrature Phase ShiftKeying) modulation, or 16 quadrature amplitudes (QAM, Quadrature Amplitude Modulation) modulation, or 64QAM modulation, or 256QAM modulation.
In this step, the information of downlink transfer parameter of instruction dispatched users comprises each subband in the cell system bandwidth of place, instruction first base station or precoding information corresponding to Physical Resource Block; Precoding information comprise following one or more:
The information of the pre-coding matrix index that instruction dispatched users uses, the number of plies amount that joint instructions dispatched users uses, the information of pre-coding matrix index, the information of the number of plies amount that joint instructions dispatched users uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that joint instructions dispatched users uses, pre-coding matrix index scope, CRS port number, instruction dispatched users sends based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
Wherein, 3 bits or 4 bits can be adopted to represent the information of joint instructions antenna port, scrambler ID, number of plies amount, as table 1 or table 2 or table 3.
| Bit information | Implication |
| 0000 | 1 code word, 1 layer, DMRS port 7, scrambler ID=0 |
| 0001 | 1 code word, 1 layer, DMRS port 7, scrambler ID=1 |
| 0010 | 1 code word, 1 layer, DMRS port 8, scrambler ID=0 |
| 0011 | 1 code word, 1 layer, DMRS port 8, scrambler ID=1 |
| 0100 | 1 code word, 2 layers, DMRS port 7-8 |
| 0101 | 1 code word, 3 layers, DMRS port 7-9 |
| 0110 | 1 code word, 4 layers, DMRS port 7-10 |
| 0111 | Retain |
| 1000 | 2 code words, 2 layers, DMRS port 7-8, scrambler ID=0 |
| 1001 | 2 code words, 2 layers, DMRS port 7-8, scrambler ID=1 |
| 1010 | 2 code words, 3 layers, DMRS port 7-9 |
| 1011 | 2 code words, 4 layers, DMRS port 7-10 |
| 1100 | 2 code words, 5 layers, DMRS port 7-11 |
| 1101 | 2 code words, 6 layers, DMRS port 7-12 |
| 1110 | 2 code words, 7 layers, DMRS port 7-13 |
| 1111 | 2 code words, 8 layers, DMRS port 7-14 |
Table 1
| Bit information | Implication |
| 0000 | 1 code word, 1 layer, DMRS port 7, scrambler ID=0 |
| 0001 | 1 code word, 1 layer, DMRS port 7, scrambler ID=1 |
| 0010 | 1 code word, 1 layer, DMRS port 8, scrambler ID=0 |
| 0011 | 1 code word, 1 layer, DMRS port 8, scrambler ID=1 |
| 0100 | 1 code word, 2 layers, DMRS port 7-8 |
| 0101 | 1 code word, 3 layers, DMRS port 7-9 |
| 0110 | 1 code word, 4 layers, DMRS port 7-10 |
| 0111 | Retain |
| 1000 | Retain |
| 1001 | 2 code words, 2 layers, DMRS port 7-8, scrambler ID=1 |
| 1010 | 2 code words, 3 layers, DMRS port 7-9 |
| 1011 | 2 code words, 4 layers, DMRS port 7-10 |
| 1100 | 2 code words, 5 layers, DMRS port 7-11 |
| 1101 | 2 code words, 6 layers, DMRS port 7-12 |
| 1110 | 2 code words, 7 layers, DMRS port 7-13 |
| 1111 | 2 code words, 8 layers, DMRS port 7-14 |
Table 2
| Bit information | Implication |
| 000 | 1 layer, DMRS port 7, scrambler ID=0 |
| 001 | 1 layer, DMRS port 7, scrambler ID=1 |
| 010 | 1 layer, DMRS port 8, scrambler ID=0 |
| 011 | 1 layer, DMRS port 8, scrambler ID=1 |
| 100 | 2 layers, DMRS port 7-8 |
| 101 | 3 layers, DMRS port 7-9 |
| 110 | 4 layers, DMRS port 7-10 |
| 111 | Retain |
Table 3
Wherein, 4 bits can be adopted to represent that dispatched users sends or the number of plies, CRS port number and the pre-coding matrix index scope that use based on the two/diversity transmission of tetra-CRS ports, dispatched users, as table 4 or table 5 based on the single antenna of a CRS port.
| Bit information | Implication |
| 0000 | Disturb the transmission based on 1 CRS port |
| 0001 | Disturb the diversity transmission based on 2 CRS ports |
| 0010 | Disturb the diversity transmission based on 4 CRS ports |
| 0011 | 1 layer, PMI0 ~ PMI3,2 CRS ports |
| 0100 | 2 layers, PMI0 ~ PMI3,2 CRS ports |
| 0101 | 1 layer, PMI0 ~ PMI7,4 CRS ports |
| 0110 | 1 layer, PMI8 ~ PMI15,4 CRS ports |
| 0111 | 2 layers, PMI0 ~ PMI7,4 CRS ports |
| 1000 | 2 layers, PMI8 ~ PMI15,4 CRS ports |
| 1001 | 3 layers, PMI0 ~ PMI7,4 CRS ports |
| 1010 | 3 layers, PMI8 ~ PMI15,4 CRS ports |
| 1011 | 4 layers, PMI0 ~ PMI7,4 CRS ports |
| 1100 | 4 layers, PMI8 ~ PMI15,4 CRS ports |
| 1101 | Retain |
| 1110 | Retain |
| 1111 | Retain |
Table 4
| Bit information | Implication |
| 0000 | Disturb the transmission based on 1 CRS port |
| 0001 | Disturb the diversity transmission based on 2 CRS ports |
| 0010 | Disturb the diversity transmission based on 4 CRS ports |
| 0011 | 1 layer, PMI0 ~ PMI3,2 CRS ports |
| 0100 | 2 layers, PMI0 ~ PMI3,2 CRS ports |
| 0101 | 1 layer, PMI0 ~ PMI3,4 CRS ports |
| 0110 | 1 layer, PMI4 ~ PMI7,4 CRS ports |
| 0111 | 1 layer, PMI8 ~ PMI11,4 CRS ports |
| 1000 | 1 layer, PMI12 ~ PMI15,4 CRS ports |
| 1001 | 2 layers, PMI0 ~ PMI3,4 CRS ports |
| 1010 | 2 layers, PMI4 ~ PMI7,4 CRS ports |
| 1011 | 2 layers, PMI8 ~ PMI11,4 CRS ports |
| 1100 | 2 layers, PMI12 ~ PMI15,4 CRS ports |
| 1101 | 3 layers, PMI0 ~ PMI7,4 CRS ports |
| 1110 | 3 layers, PMI8 ~ PMI15,4 CRS ports |
| 1111 | 4 layers, PMI0 ~ PMI15,4 CRS ports |
Table 5
Wherein, 4 bits can be adopted to represent dispatched users and to send based on the single antenna of a CRS port or based on the diversity transmission of two/tetra-CRS ports and pre-coding matrix index scope, as table 6.
| Bit information | Implication |
| 0000 | The single antenna based on 1 CRS port is disturbed to send |
| 0001 | Based on the diversity transmission of two/tetra-CRS ports |
| 0010 | PMI0 |
| 0011 | PMI1 |
| 0100 | PMI2 |
| 0101 | PMI3 |
| 0110 | PMI4 |
| 0111 | PMI5 |
| 1000 | PMI6 |
| 1001 | PMI7 |
| 1010 | PMI8 |
| 1011 | PMI9 |
| 1100 | PMI10 |
| 1101 | PMI11 |
| 1110 | PMI12 |
| 1111 | PMI13～PMI15 |
Table 6
Wherein, 4 bits can be adopted to represent pre-coding matrix index scope, as table 7.
| Bit information | Implication |
| 0000 | PMI0 |
| 0001 | PMI1 |
| 0010 | PMI2 |
| 0011 | PMI3 |
| 0100 | PMI4 |
| 0101 | PMI5 |
| 0110 | PMI6 |
| 0111 | PMI7 |
| 1000 | PMI8 |
| 1001 | PMI9 |
| 1010 | PMI10 |
| 1011 | PMI11 |
| 1100 | PMI12 |
| 1101 | PMI13 |
| 1110 | PMI14 |
| 1111 | PMI15 |
Table 7
Wherein, 3 bits can be adopted to represent pre-coding matrix index scope, as table 8.
| Bit information | Implication |
| 000 | PMI0～PMI1 |
| 001 | PMI2～PMI3 |
| 010 | PMI4～PMI5 |
| 011 | PMI6～PMI7 |
| 100 | PMI8～PMI9 |
| 101 | PMI10～PMI11 |
| 110 | PMI12～PMI13 |
| 111 | PMI14～PMI15 |
Table 8
Wherein, the number of plies that 4 bits can be adopted to use to the number of plies representing dispatched users and use, antenna port, scrambler ID, dispatched users and pre-coding matrix index scope, as table 9 or table 10.
| Bit information | Implication |
| 0000 | 1 layer, DMRS port 7, scrambler ID=0 |
| 0001 | 1 layer, DMRS port 7, scrambler ID=1 |
| 0010 | 1 layer, DMRS port 8, scrambler ID=0 |
| 0011 | 1 layer, DMRS port 8, scrambler ID=1 |
| 0100 | 2 layers, DMRS port 7-8 |
| 0101 | 3 layers, DMRS port 7-9 |
| 0110 | 4 layers, DMRS port 7-10 |
| 0111 | PMI0～PMI1 |
| 1000 | PMI2～PMI3 |
| 1001 | PMI4～PMI5 |
| 1010 | PMI6～PMI7 |
| 1011 | PMI8～PMI9 |
| 1100 | PMI10～PMI11 |
| 1101 | PMI12～PMI13 |
| 1110 | PMI14～PMI15 |
| 1111 | Retain |
Table 9
| Bit information | Implication |
| 0000 | 1 layer, DMRS port 7, scrambler ID=0 |
| 0001 | 1 layer, DMRS port 7, scrambler ID=1 |
| 0010 | 1 layer, DMRS port 8, scrambler ID=0 |
| 0011 | 1 layer, DMRS port 8, scrambler ID=1 |
| 0100 | 2 layers, DMRS port 7-8 |
| 0101 | 3 layers, DMRS port 7-9 |
| 0110 | 4 layers, DMRS port 7-10 |
| 0111 | Single antenna based on 1 CRS port sends |
| 1000 | Based on the diversity transmission of two/tetra-CRS ports |
| 1001 | PMI0～PMI1 |
| 1010 | PMI2～PMI3 |
| 1011 | PMI4～PMI5 |
| 1100 | PMI6～PMI7 |
| 1101 | PMI8～PMI9 |
| 1110 | PMI10～PMI11 |
| 1111 | PMI12～PMI15 |
Table 10
In the method for transmission network assistance signaling of the present invention, also comprise before the method:
Step 101, the first base station use the cyclic redundancy check CRC of publicly-owned Radio Network Temporary Identifier to descending control signaling to carry out scrambling.
In the method for transmission network assistance signaling of the present invention, also comprise before the method:
Step 102, the first base station by between base station or node interface receive and carry out disturbing second base station of eliminating or suppress by between base station or node interface from request network assistance, or after the solicited message that the user terminal of the second community, place, base station sends, by between base station or node interface to the second base station feedback network-assist information; Between base station or node interface comprise: X2 interface or optical fiber interface.
In this step, solicited message comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; The second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
In this step, network-assist information comprise following one or more:
Indicate the range information residing for C-RNTI of the first base station institute dispatched users, indicate the configuration set 1 of ePDCCH of the first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
Wherein, the range information residing for C-RNTI of the first base station institute dispatched users is indicated to be the C-RNTI of two different numerical value or the absolute value of described C-RNTI and relative value.
In the method for transmission network assistance signaling of the present invention, the method also comprises:
Step 103, the first base station or the second base station are in transmission mode M by high-rise wireless heterogeneous networks (RRC, RadioResource Control) signal deployment user terminal, and M is one in the integer of 11 to 15.
In this step, when user terminal is in transmission mode M, DCIformat1X or the DCI format2X of new definition or DCI format Y or DCI format3Z form can be adopted to send descending control signaling to user terminal.
In the method for transmission network assistance signaling of the present invention, the method also comprises:
Second base station sends the subframe configuration information needing to do interference elimination or suppress to dispatched users by high-rise RRC signaling.
See Fig. 2, the invention allows for a kind of method receiving network assistance signaling, comprising:
Step 200, user terminal receive and send descending control signaling from the first base station by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing; The information that descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
In this step, indicate whether that the information that there is dispatched users is: indicate the information whether the first place, base station cell system bandwidth each subband interior or each Physical Resource Block existing dispatched users.
In this step, the information of downlink transfer parameter of instruction dispatched users comprises following one or more:
Indicate each subband in the first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
In this step, the information of downlink transfer parameter of instruction dispatched users comprises each subband in the cell system bandwidth of place, instruction first base station or downlink transfer pattern corresponding to Physical Resource Block;
Downlink transfer pattern is based on the transmission mode of public reference signal CRS or the transmission mode based on demodulated reference signal DMRS.
In this step, the information of downlink transfer parameter of instruction dispatched users comprises each subband in the cell system bandwidth of place, instruction first base station or precoding information corresponding to Physical Resource Block;
Precoding information comprise following one or more:
The information of the pre-coding matrix index that instruction dispatched users uses, the number of plies amount that joint instructions dispatched users uses, the information of pre-coding matrix index, the information of the number of plies amount that joint instructions dispatched users uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that joint instructions dispatched users uses, pre-coding matrix index scope, CRS port number, instruction dispatched users sends based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
In the method for reseptance of network assistance signaling of the present invention, also comprise before the method:
Step 201, request network assistance carry out disturb eliminate or suppress the second base station by between base station or node interface to described first base station transmission request information.
In this step, between base station or node interface comprise: X2 interface or optical fiber interface.
In this step, solicited message comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; The second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
Step 202, by between base station or node interface receive from described first base station by between base station or the network-assist information of node interface feedback.
In this step, between base station or node interface comprise: X2 interface or optical fiber interface.
In this step, network assistance signaling can be sent by high-rise RRC signaling.
In this step, network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
Wherein, the range information residing for C-RNTI of the first base station institute dispatched users is indicated to be the C-RNTI of two different numerical value or the absolute value of described C-RNTI and relative value.
In the method for reception network assistance signaling of the present invention, also comprise after the method:
Network-assist information is sent to user terminal by the physical control channel of physical control channel or enhancing or high-rise RRC signaling by step 203, the second base station, and user terminal carries out blind Detecting according to the network-assist information received to the descending control signaling that the first base station sends.
See Fig. 3, the invention allows for a kind of device sending network assistance signaling, at least comprise:
Sending module, sends descending control signaling for the Physical Downlink Control Channel by Physical Downlink Control Channel or enhancing; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
The dispensing device of network assistance signaling of the present invention, also comprises:
Scrambling module, carries out scrambling for using the cyclic redundancy check CRC of publicly-owned Radio Network Temporary Identifier RNTI to described descending control signaling;
Sending module, specifically for: send the descending control signaling after scrambling by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing.
The device of transmission network assistance signaling of the present invention, indicates whether that the information that there is dispatched users is: indicate the information whether the first place, base station cell system bandwidth each subband interior or each Physical Resource Block existing dispatched users.
The device of transmission network assistance signaling of the present invention, the information of downlink transfer parameter of instruction dispatched users comprises following one or more:
Indicate each subband in the first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
The device of transmission network assistance signaling of the present invention, the information of downlink transfer parameter of instruction dispatched users comprises each subband in the cell system bandwidth of place, instruction first base station or precoding information corresponding to Physical Resource Block;
Precoding information comprise following one or more:
The information of the pre-coding matrix index that instruction dispatched users uses, the number of plies amount that joint instructions dispatched users uses, the information of pre-coding matrix index, the information of the number of plies amount that joint instructions dispatched users uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that joint instructions dispatched users uses, pre-coding matrix index scope, CRS port number, instruction dispatched users sends based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
The device of transmission network assistance signaling of the present invention, also comprises:
Receiver module, for by between base station or node interface receive and carry out disturbing second base station of eliminating or suppress by between base station or node interface from request network assistance, or the solicited message that the user terminal of the second community, place, base station sends;
Sending module, also for:
By between base station or node interface to described second base station feedback network-assist information.
The device of transmission network assistance signaling of the present invention, solicited message comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; The second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
The device of transmission network assistance signaling of the present invention, network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of the first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of the first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
The device of transmission network assistance signaling of the present invention, also comprises:
Configuration module, for being in transmission mode M by high-rise radio resource control RRC signal deployment user terminal or described dispatched users, M is one in the integer of 11 to 15.
The invention allows for a kind of device receiving network assistance signaling, at least comprise:
Receiver module, sends descending control signaling from the first base station by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing for receiving; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
The device of reception network assistance signaling of the present invention, indicates whether that the information that there is dispatched users is: indicate the information whether the first place, base station cell system bandwidth each subband interior or each Physical Resource Block existing dispatched users.
The device of reception network assistance signaling of the present invention, the information of downlink transfer parameter of instruction dispatched users comprises following one or more:
Indicate each subband in the first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
The device of reception network assistance signaling of the present invention, the information of downlink transfer parameter of instruction dispatched users comprises each subband in the cell system bandwidth of place, instruction first base station or downlink transfer pattern corresponding to Physical Resource Block;
Downlink transfer pattern is based on the transmission mode of public reference signal CRS or the transmission mode based on demodulated reference signal DMRS.
The device of reception network assistance signaling of the present invention, the information of downlink transfer parameter of instruction dispatched users comprises each subband in the cell system bandwidth of place, instruction first base station or precoding information corresponding to Physical Resource Block;
Precoding information comprise following one or more:
The information of the pre-coding matrix index that instruction dispatched users uses, the number of plies amount that joint instructions dispatched users uses, the information of pre-coding matrix index, the information of the number of plies amount that joint instructions dispatched users uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that joint instructions dispatched users uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
The device of reception network assistance signaling of the present invention, also comprises:
Sending module, for by between base station or node interface to the first base station transmission request information;
Receiver module, also for by between base station or node interface receive from the first base station by between base station or the network-assist information of node interface feedback;
Between base station or node interface comprise: X2 interface or optical fiber interface.
The device of reception network assistance signaling of the present invention, solicited message comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; The second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
The device of reception network assistance signaling of the present invention, network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of the first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of the first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
The device of reception network assistance signaling of the present invention, also comprises:
Descrambling module, for carrying out blind Detecting according to the network-assist information received to the descending control signaling that the first base station sends.
Descending control signaling is directly sent to user terminal by the first base station by the present invention, and does not need to be sent by the base station of community, user terminal place, thus decreases the signaling consumption of X2 interface.
It should be noted that; above-described embodiment is only understand for the ease of those skilled in the art; be not limited to protection scope of the present invention; under the prerequisite not departing from inventive concept of the present invention, any apparent replacement and improvement etc. that those skilled in the art make the present invention are all within protection scope of the present invention.
Claims (41)
1. send a method for network assistance signaling, it is characterized in that, the method comprises:
First base station sends descending control signaling by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
2. method according to claim 1, is characterized in that, also comprises before the method:
Described first base station uses the cyclic redundancy check CRC of publicly-owned Radio Network Temporary Identifier RNTI to described descending control signaling to carry out scrambling.
3. method according to claim 1 and 2, is characterized in that, described in indicate whether that the information that there is dispatched users is: indicate the information whether each subband in described first place, base station cell system bandwidth or each Physical Resource Block existing dispatched users.
4. method according to claim 1 and 2, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises following one or more:
Indicate each subband in described first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
5. method according to claim 1 and 2, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband in described first place, the base station cell system bandwidth of instruction or downlink transfer pattern corresponding to Physical Resource Block;
Described downlink transfer pattern is based on the transmission mode of public reference signal CRS or the transmission mode based on demodulated reference signal DMRS.
6. method according to claim 1 and 2, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband in described first place, the base station cell system bandwidth of instruction or precoding information corresponding to Physical Resource Block;
Described precoding information comprise following one or more:
The information of the pre-coding matrix index indicating described dispatched users to use, the number of plies amount that dispatched users described in joint instructions uses, the information of pre-coding matrix index, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
7. method according to claim 1 and 2, it is characterized in that, the form of described descending control signaling is Downlink Control Information DCI format format1X or format2X or format Y or format3Z, and wherein X represents E or F or G or H, Y represents that 5 or 6 or 7 or 8, Z represent B or C or D or E.
8. method according to claim 2, is characterized in that, also comprises before the method:
Described first base station by between base station or node interface receive and carry out disturbing second base station of eliminating or suppress by between base station or node interface from request network assistance, or after the solicited message that the user terminal of the second community, place, base station sends, by between base station or node interface to described second base station feedback network-assist information;
Between described base station or node interface comprise: X2 interface or optical fiber interface.
9. method according to claim 8, is characterized in that, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Described second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
10. method according to claim 8, is characterized in that, described network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
11. methods according to claim 10, is characterized in that, the range information residing for C-RNTI of described instruction first base station institute dispatched users is the C-RNTI of two different numerical value or the absolute value of described C-RNTI and relative value.
12. methods according to claim 1 or 8, it is characterized in that, the method also comprises:
Described first base station or described second base station are in transmission mode M by user terminal described in high-rise radio resource control RRC signal deployment or described dispatched users, and M is one in the integer of 11 to 15.
13. methods according to claim 8, is characterized in that, described second base station sends the subframe configuration information needing to do interference elimination or suppress to described dispatched users by high-rise RRC signaling.
14. 1 kinds of methods receiving network assistance signaling, it is characterized in that, the method comprises:
User terminal receives and sends descending control signaling from the first base station by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
15. methods according to claim 14, is characterized in that, described in indicate whether that the information that there is dispatched users is: indicate the information whether each subband in described first place, base station cell system bandwidth or each Physical Resource Block existing dispatched users.
16. methods according to claim 14, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises following one or more:
Indicate each subband in described first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
17. methods according to claim 14, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband in described first place, the base station cell system bandwidth of instruction or downlink transfer pattern corresponding to Physical Resource Block;
Described downlink transfer pattern is based on the transmission mode of public reference signal CRS or the transmission mode based on demodulated reference signal DMRS.
18. methods according to claim 14, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband in described first place, the base station cell system bandwidth of instruction or precoding information corresponding to Physical Resource Block;
Described precoding information comprise following one or more:
The information of the pre-coding matrix index indicating described dispatched users to use, the number of plies amount that dispatched users described in joint instructions uses, the information of pre-coding matrix index, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
19. methods according to claim 14, is characterized in that, also comprise before the method:
Request network assistance carry out disturb eliminate or suppress the second base station by between base station or node interface to described first base station transmission request information;
By between base station or node interface receive from described first base station by between base station or the network-assist information of node interface feedback;
Between described base station or node interface comprise: X2 interface or optical fiber interface.
20. methods according to claim 19, is characterized in that, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Described second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
21. methods according to claim 19, is characterized in that, described network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
22. methods according to claim 21, is characterized in that, the range information residing for C-RNTI of described instruction first base station institute dispatched users is the C-RNTI of two different numerical value or the absolute value of described C-RNTI and relative value.
23. methods according to claim 14, is characterized in that, also comprise after the method:
Network-assist information is sent to described user terminal by the physical control channel of physical control channel or enhancing or high-rise RRC signaling by described second base station, and described user terminal carries out blind Detecting according to the network-assist information received to the descending control signaling that described first base station sends.
24. 1 kinds of devices sending network assistance signaling, is characterized in that, at least comprise:
Sending module, sends descending control signaling for the Physical Downlink Control Channel by Physical Downlink Control Channel or enhancing; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
25. devices according to claim 24, is characterized in that, also comprise:
Scrambling module, carries out scrambling for using the cyclic redundancy check CRC of publicly-owned Radio Network Temporary Identifier RNTI to described descending control signaling;
Described sending module, specifically for: send the descending control signaling after scrambling by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing.
26. devices according to claim 24, is characterized in that, described in indicate whether that the information that there is dispatched users is: indicate the information whether each subband in described first place, base station cell system bandwidth or each Physical Resource Block existing dispatched users.
27. devices according to claim 24, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises following one or more:
Indicate each subband in described first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
28. devices according to claim 24, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband in described first place, the base station cell system bandwidth of instruction or precoding information corresponding to Physical Resource Block;
Described precoding information comprise following one or more:
The information of the pre-coding matrix index indicating described dispatched users to use, the number of plies amount that dispatched users described in joint instructions uses, the information of pre-coding matrix index, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
29. devices according to claim 24, is characterized in that, also comprise:
Receiver module, for by between base station or node interface receive and carry out disturbing second base station of eliminating or suppress by between base station or node interface from request network assistance, or the solicited message that the user terminal of the second community, place, base station sends;
Described sending module, also for:
By between base station or node interface to described second base station feedback network-assist information.
30. devices according to claim 29, is characterized in that, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Described second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
31. devices according to claim 29, is characterized in that, described network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
32. devices according to claim 24 or 29, is characterized in that, also comprise:
Configuration module, for being in transmission mode M by user terminal described in high-rise radio resource control RRC signal deployment or described dispatched users, M is one in the integer of 11 to 15.
33. 1 kinds of devices receiving network assistance signaling, is characterized in that, at least comprise:
Receiver module, sends descending control signaling from the first base station by the Physical Downlink Control Channel of Physical Downlink Control Channel or enhancing for receiving; The information that described descending control signaling carries at least comprises: indicate whether the information that there is the information of dispatched users and/or the downlink transfer parameter of instruction dispatched users.
34. devices according to claim 33, is characterized in that, described in indicate whether that the information that there is dispatched users is: indicate the information whether each subband in described first place, base station cell system bandwidth or each Physical Resource Block existing dispatched users.
35. devices according to claim 34, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises following one or more:
Indicate each subband in described first place, base station cell system bandwidth or corresponding downlink transfer pattern, modulation system, modulation coding mode MCS, precoding information, joint instructions antenna port, scrambler ID, the information of number of plies amount, the carrier indication information of Physical Resource Block.
36. devices according to claim 34, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband in described first place, the base station cell system bandwidth of instruction or downlink transfer pattern corresponding to Physical Resource Block;
Described downlink transfer pattern is based on the transmission mode of public reference signal CRS or the transmission mode based on demodulated reference signal DMRS.
37. devices according to claim 34, is characterized in that, the information of the downlink transfer parameter of described instruction dispatched users comprises each subband in described first place, the base station cell system bandwidth of instruction or precoding information corresponding to Physical Resource Block;
Described precoding information comprise following one or more:
The information of the pre-coding matrix index indicating described dispatched users to use, the number of plies amount that dispatched users described in joint instructions uses, the information of pre-coding matrix index, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index, CRS port number, the information of the number of plies amount that dispatched users described in joint instructions uses, pre-coding matrix index scope, CRS port number, indicates described dispatched users to send based on the single antenna of a CRS port or the information of diversity transmission based on two/tetra-CRS ports.
38. devices according to claim 33, is characterized in that, also comprise:
Sending module, for by between base station or node interface to described first base station transmission request information; ;
Described receiver module, also for by between base station or node interface receive from described first base station by between base station or the network-assist information of node interface feedback;
Between described base station or node interface comprise: X2 interface or optical fiber interface.
39., according to device according to claim 38, is characterized in that, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Described second community, place, base station is indicated whether to have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; Instruction needs to carry out the interference elimination of network assistance or the information of the Physical Resource Block suppressed or subframe; The information of indication carrier wave.
40., according to device according to claim 38, is characterized in that, described network-assist information comprise following one or more:
Indicate the range information residing for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described first base station institute dispatched users, indicate the configuration set 1 of Physical Downlink Control Channel ePDCCH of the enhancing of described first community, place, base station or the information of the time-domain resource of configuration set 2 and/or frequency domain resource, publicly-owned RNTI, the sub-frame information indicating the interference needing to carry out network assistance to eliminate or suppress, the information of instruction pre-coding matrix index scope, the information of instruction DMRS antenna port scope.
41. devices according to claim 33, is characterized in that, also comprise:
Descrambling module, for carrying out blind Detecting according to the network-assist information received to the descending control signaling that described first base station sends.
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| CN201310745344.0A CN104754537B (en) | 2013-12-30 | 2013-12-30 | Method and device for sending and receiving network auxiliary signaling |
| PCT/CN2014/080195 WO2015100960A1 (en) | 2013-12-30 | 2014-06-18 | Method and device for sending and receiving network auxiliary signalling |
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| CN201310745344.0A CN104754537B (en) | 2013-12-30 | 2013-12-30 | Method and device for sending and receiving network auxiliary signaling |
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Also Published As
| Publication number | Publication date |
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| CN104754537B (en) | 2019-12-06 |
| WO2015100960A1 (en) | 2015-07-09 |
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