CN104518806A - Signaling sending method, receiving method, and signaling sending/receiving system - Google Patents
Signaling sending method, receiving method, and signaling sending/receiving system Download PDFInfo
- Publication number
- CN104518806A CN104518806A CN201310452519.9A CN201310452519A CN104518806A CN 104518806 A CN104518806 A CN 104518806A CN 201310452519 A CN201310452519 A CN 201310452519A CN 104518806 A CN104518806 A CN 104518806A
- Authority
- CN
- China
- Prior art keywords
- base station
- information
- signaling
- control signaling
- descending control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
Provided are a signaling sending method, a receiving method, and a signaling sending/receiving system. The signaling sending method comprises: a first base station sending a downlink control signaling in a user specific search space and/or a public search space, the downlink control signaling carrying information used for eliminating or suppressing interference of a user terminal. Through sending the downlink control signaling in the public search space and/or the user specific search space, the downlink control signaling carrying the information used for eliminating or suppressing interference of the user terminal, on one hand, the interference elimination or suppression information needed by an advanced receiver is effectively transmitted to target UE in time, and signaling cost and delay are low, on the other hand, since the interference elimination or suppression information is not transmitted through an X2 interface, problems of large signaling cost and large delay caused by acquiring network auxiliary information by the user terminal are solved. Through the methods, the application of a technology of the advanced receiver in LTE-A downlink transmission is ensured, so as to improve network frequency spectrum efficiency.
Description
Technical field
The present invention relates to mobile communication technology, espespecially a kind of signaling method, method of reseptance and signaling transmitting/receiving system.
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-input Multi-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: MMSE-IRC(Minimum Mean Square Error-Interference Rejection Combining, least mean-square error-AF panel combines) receiver, IC(Interference Cancellation, interference eliminate) receiver, ML(Maximum Likelihood, maximum likelihood) receiver.
For MMSE-IRC receiver (being assumed to be DMRS-based), network side needs the initiation parameter (comprising scrambler ID, virtual subdistrict ID, physical district ID etc.) providing the interference DMRS 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.As can be seen here, if these information being transmitted with eating dishes without rice or wine by the X2 interface of minizone, a large amount of X2 signaling consumptions and space interface signaling expense will be consumed, and comparatively long time delay can be caused, 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-ideal backhaul situation.
Therefore, the shortcoming that above-described signaling consumption is large in order to overcome, time delay is large, needs to find new approach and the information such as the initiation parameter needed for senior receiver and dynamic parameter is passed to object UE timely and effectively.
Summary of the invention
The invention provides a kind of signaling method, method of reseptance and signaling transmitting/receiving system, timely and effectively the interference elimination needed for senior receiver or suppression information can be passed to object UE, and signaling consumption is little, time delay is little.
In order to solve the problems of the technologies described above, the invention discloses a kind of signaling method, comprising:
First base station sends descending control signaling in the proprietary search volume of user and/or in publicly-owned search volume;
Described descending control signaling carries user terminal and does interference elimination or the information needed for suppression.
The method also comprises: described first base station sends the descending control signaling for dispatching Physical Downlink Shared Channel in the search volume that user is proprietary;
The described descending control signaling for dispatching Physical Downlink Shared Channel is the descending control signaling for dispatching PDSCH, comprising: DCI format1 or DCI format1A or DCI format1B or DCI format1C or DCI format1D or DCI format2 or DCI format2A or DCI format2B or DCI format2C or DCI format2D.
The user terminal that described descending control signaling carries do interference eliminate or suppress needed for information for: be used to indicate the modulation coding mode MCS that target terminal uses, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information; Or,
The user terminal that described descending control signaling carries do interference eliminate or suppress needed for information for: be used to indicate the MCS that in this community, all user terminals use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information; Or,
The user terminal that described descending control signaling carries does interference elimination or the information needed for suppression is: be used to indicate the MCS that in this cell system bandwidth, each subband is corresponding, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information.
Described descending control signaling is the DCI format of new definition, is DCI format1X or DCIformat2X or DCI format Y or DCI format3Z, the payload equal and opposite in direction of its payload size and DCI format1C; 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.
Also comprise before the method: described first base station carries out disturbing the second base station feedback network-assist information eliminated or suppress to request network assistance.
Described first base station comprises to the second base station feedback network-assist information:
Described second base station to the first base station transmission request information by X2 interface, is had user terminal that senior receiver will be used to carry out interference and eliminates or suppress in the community representing the second place, base station;
After described first base station receives the solicited message from the second base station, to the second base station feedback network-assist information that request interference is eliminated or suppressed.
Described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Indicate in this community and whether have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; The information that the interference which Physical Resource Block PRB instruction has need to carry out network assistance is eliminated or suppressed; The information that instruction needs the interference carrying out network assistance to eliminate or suppress in which subframe; The information of indication carrier wave.
Described network-assist information comprises:
Indicate the system bandwidth that described first community, place, base station uses; And/or indicate the information of each subband of described first community, place, base station or downlink transfer pattern corresponding to Physical Resource Block; And/or the information indicating the ascending-descending subframes of described first community, place, base station to configure; And/or indicate the time-domain resource of ePDCCH and/or the information of frequency domain resource of described first community, place, base station; And/or publicly-owned RNTI; And/or the community ID of described first community, place, base station; And/or the information of indication carrier wave.
The method also comprises: described first base station uses the cyclic redundancy check CRC of described publicly-owned RNTI to descending control signaling to carry out scrambling.
When the user terminal of described second community, place, base station will use senior receiver, the method also comprises:
The user terminal of described second community, place, base station utilizes the publicly-owned RNTI in the network-assist information of the first base station feedback, the descending control signaling that described in blind Detecting, the first base station sends on publicly-owned search volume; Or, utilize the time-domain resource of the ePDCCH in the network-assist information of the first base station feedback and/or the information of frequency domain resource, the descending control signaling that described in blind Detecting, the first base station sends on the search volume that user is proprietary;
When described descending control signaling being detected, obtain user terminal and do interference elimination or the information needed for suppression: the MCS that the neighbor cell corresponding with user terminal place frequency band or strong jamming community use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, the information of number of plies amount and/or carrier indication information;
Utilize the interference elimination or the information needed for suppression that obtain, use senior receiver to carry out interference and eliminate or suppress.
When the user terminal of described second community, place, base station is at publicly-owned search volume blind Detecting descending control signaling, the method also comprises:
Described descending control signaling and DCIformat1C are distinguished by high-rise RRC signaling instruction in described second base station; Or distinguished by described publicly-owned RNTI.
The method also comprises: described first base station configuration needs the subframe sending descending control signaling, and described descending control signaling is in the upper transmission of subframe of configuration; Wherein, the subframe of configuration can reuse the instruction of ABS subframe.
Whether described second base station will use senior receiver to carry out interference at present sub-frame by DCI informing user terminal is eliminated or suppresses.
The present invention also provides a kind of signaling method of reseptance, comprising:
The user terminal disturbing second community, place, base station of eliminating or suppress is carried out in request network assistance, utilize the time-domain resource of publicly-owned RNTI or ePDCCH in the network-assist information of the first base station feedback and/or the information of frequency domain resource, the descending control signaling that described in blind Detecting, the first base station sends on publicly-owned search volume or the proprietary search volume of user;
When descending control signaling being detected, obtain the first base station place community user terminal corresponding with user terminal place frequency band and do the information needed for eliminating or suppressing of disturbing: the MCS used, and/or precoding information, and/or joint instructions antenna port, scrambler ID, the information of number of plies amount and/or carrier indication information;
Utilize the interference elimination or the information needed for suppression that obtain, use senior receiver to carry out interference and eliminate or suppress.
When the user terminal of described second community, place, base station is described in publicly-owned search volume or the proprietary search volume blind Detecting of user during descending control signaling, the method also comprises:
Described descending control signaling and DCIformat1C are distinguished by high-rise RRC signaling instruction in described second base station; Or distinguished by described publicly-owned RNTI.
The present invention also provides a kind of signaling transmitting/receiving system, at least comprises the first base station, and request network assistance is carried out disturbing second base station of eliminating or suppressing; Wherein,
First base station, does interference eliminate or the descending control signaling of information needed for suppressing for carrying user terminal in the proprietary search volume of user and/or send in publicly-owned search volume.
Described first base station also for, to request network assistance carry out disturb eliminate or suppress the second base station feedback network-assist information.
Described second base station, for by the base station i.e. first base station transmission request information of X2 interface to neighbor cell or strong jamming community, has user terminal that senior receiver will be used to carry out interference in the community representing the second place, base station and eliminates or suppress;
Described first base station, also for after receiving the solicited message from the second base station, to the second base station feedback network-assist information that request interference is eliminated or suppressed.
When the user terminal of described second community, place, base station will use senior receiver,
The user terminal of described second community, place, base station, for utilizing the time-domain resource of publicly-owned RNTI or ePDCCH in the network-assist information of the first base station feedback and/or the information of frequency domain resource, the descending control signaling that blind Detecting first base station sends on publicly-owned search volume or the proprietary search volume of user; When described descending control signaling being detected, obtain the user terminal that the first base station place community corresponding with user terminal place frequency band use and do the information needed for eliminating or suppressing of disturbing: MCS, and/or precoding information, and/or joint instructions antenna port, scrambler ID, the information of number of plies amount and/or carrier indication information, use senior receiver to carry out interference and eliminate or suppression.
Technical scheme provides and comprises the first base station and send descending control signaling in the proprietary search volume of user and/or in publicly-owned search volume, and described descending control signaling carries user terminal and does interference and eliminate or information needed for suppressing.The inventive method is by publicly-owned search volume and/or send the descending control signaling carrying interference and eliminate or suppress information in the search volume that user is proprietary, on the one hand, give object UE by the interference elimination needed for senior receiver or the transmission of suppression information timely and effectively, and signaling consumption is little, time delay is little; On the other hand, because interference elimination or suppression information are not transmitted by X2 interface, the problem that signaling consumption is large, time delay is large brought when user terminal obtains network-assist information is solved.Meanwhile, by the inventive method, ensure that the application of the technology of senior receiver in the downlink transfer of LTE-A, thus improve the spectrum efficiency of network.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of signaling method of the present invention;
Fig. 2 is the composition structural representation of signaling transmitting/receiving system of the present invention.
Embodiment
Fig. 1 is the flow chart of signaling method of the present invention, as shown in Figure 1, at least comprises:
Step 101: the first base station sends descending control signaling in the proprietary search volume of user and/or in publicly-owned search volume, described descending control signaling carries user terminal and does interference and eliminate or information needed for suppressing.
This step also comprises: the first base station sends the descending control signaling for dispatching Physical Downlink Shared Channel in the search volume that user is proprietary, wherein, descending control signaling for dispatching Physical Downlink Shared Channel comprises: descending control signaling form 1(DCI format1), or descending control signaling form 1A(DCIformat1A), or descending control signaling form 1B(DCI format1B), or descending control signaling form 1C(DCI format1C), or descending control signaling form 1D(DCI format1D), or descending control signaling form 2(DCI format2), or descending control signaling form 2A(DCI format2A), or descending control signaling form 2B(DCI format2B), or descending control signaling form 2C(DCI format2C), or descending control signaling form 2D(DCI format2D),
Carry user terminal to do interference and to eliminate or the descending control signaling of information needed for suppressing is:
The user terminal that descending control signaling carries do interference eliminate or suppress needed for information for: be used to indicate the modulation coding mode (MCS) that target terminal uses, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount (Antenna port (s), scrambling identity and numberof layers) information, and/or carrier indication information (Carrier indicator); Or,
The user terminal that descending control signaling carries do interference eliminate or suppress needed for information for: be used to indicate the MCS that in this community, all user terminals use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information; Or,
The user terminal that descending control signaling carries does interference elimination or the information needed for suppression is: be used to indicate the MCS that in this cell system bandwidth, each subband is corresponding, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information.
Descending control signaling can also be the DCI format of new definition, is DCI format1X or DCIformat2X or DCI format Y or DCI format3Z, the payload equal and opposite in direction of its payload size (payload size) and DCI format1C; 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.
The inventive method sends the descending control signaling of the information carried needed for interference elimination or suppression by publicly-owned search volume, on the one hand, give object UE by the interference elimination needed for senior receiver or the information transmission needed for suppression timely and effectively, and signaling consumption is little, time delay is little; On the other hand, the information needed for interference elimination or suppression is not transmitted by X2 interface, solves the problem that signaling consumption is large, time delay is large brought when user terminal obtains network-assist information.Meanwhile, by the inventive method, ensure that the application of the technology of senior receiver in the downlink transfer of LTE-A, thus improve the spectrum efficiency of network.
Also comprise before the inventive method:
Step 100: the first base station carries out disturbing the second base station feedback network-assist information eliminated or suppress to request network assistance.This step specifically comprises:
First, the second base station, by the base station i.e. first base station transmission request information of X2 interface to neighbor cell or strong jamming community, has user terminal that senior receiver will be used to carry out interference in the community representing the second place, base station and eliminates or suppress; Wherein,
Solicited message comprises: indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Indicate in this community and whether have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; The information that the interference that instruction has which Physical Resource Block (PRB) to need to carry out network assistance is eliminated or suppressed; The information that instruction needs the interference carrying out network assistance to eliminate or suppress in which subframe; The information etc. of indication carrier wave.
Then, after the first base station receives the solicited message from the second base station, carry out disturbing the second base station feedback network-assist information eliminated or suppress to request network assistance.Wherein,
Network-assist information comprises: indicate the system bandwidth that the first community, place, base station uses; Or/or the information of instruction each subband of the first base station institute community or downlink transfer pattern corresponding to Physical Resource Block; And/or the information of the ascending-descending subframes configuration of instruction the first community, place, base station; And/or indicate the time-domain resource of ePDCCH and/or the information of frequency domain resource of the first community, place, base station; And/or publicly-owned RNTI; And/or the first community ID of community, place, base station; And/or the information etc. of indication carrier wave.
Wherein, publicly-owned RNTI is NAICS-RNTI, it should be noted that, the concrete title of publicly-owned RNTI can be different, as long as title represents is publicly-owned RNTI, all belongs to protection scope of the present invention.
The inventive method also comprises: the first base station uses publicly-owned RNTI to carry out scrambling to the CRC of descending control signaling.
The user terminal of the second community, place, base station, if will use senior receiver, the method that the present invention receives signaling comprises:
First, network assistance carries out disturbing the user terminal of the second community, place, base station eliminated or suppress to utilize publicly-owned RNTI in the network-assist information of the first base station feedback, the descending control signaling that blind Detecting first base station sends on publicly-owned search volume; When descending control signaling being detected, obtain the MCS that the first base station place community corresponding with user terminal place frequency band uses, and/or precoding information, and/or the user terminal such as joint instructions antenna port, scrambler ID, the information of number of plies amount and/or carrier indication information does interference and eliminates or information needed for suppressing; Finally utilize the interference elimination of acquisition or the information needed for suppression, use senior receiver to carry out interference and eliminate or suppress.
When user terminal is at publicly-owned search volume blind Detecting descending control signaling, the inventive method also comprises: descending control signaling and DCI format1C are distinguished by high-rise RRC signaling instruction in the second base station.Or distinguished by RNTI;
Further, the first base station can configure the subframe needing to send descending control signaling, and the first base station only sends descending control signaling in the subframe of configuration; Wherein, the subframe of configuration can reuse the instruction of ABS subframe.
Further, whether the second base station will use senior receiver carry out interference elimination or suppress at present sub-frame by DCI informing user terminal.
Fig. 2 is the composition structural representation of signaling transmitting/receiving system of the present invention, as shown in Figure 2, at least comprises the first base station, and request network assistance is carried out disturbing second base station of eliminating or suppressing; Wherein,
First base station, does interference eliminate or the descending control signaling of information needed for suppressing for carrying user terminal in the proprietary search volume of user and/or send in publicly-owned search volume.
First base station also for, to request network assistance carry out disturb eliminate or suppress the second base station feedback network-assist information.Particularly,
Second base station, for by the base station i.e. first base station transmission request information of X2 interface to neighbor cell or strong jamming community, has user terminal that senior receiver will be used to carry out interference in the community representing the second place, base station and eliminates or suppress;
First base station, also for after receiving the solicited message from the second base station, to the second base station feedback network-assist information that request interference is eliminated or suppressed.
When the user terminal of the second community, place, base station will use senior receiver,
The user terminal of the second community, place, base station, for utilizing the publicly-owned RNTI in the network-assist information of the first base station feedback, the descending control signaling that blind Detecting first base station sends on publicly-owned search volume, or utilize the time-domain resource of the ePDCCH in the network-assist information of the first base station feedback and/or the information of frequency domain resource, the descending control signaling that blind Detecting first base station sends on the search volume that user is proprietary; When descending control signaling being detected, obtain the first base station place community corresponding with user terminal place frequency band use user terminal to do to disturb the information needed for eliminating or suppressing: MCS, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information and/or carrier indication information etc.; Utilize the interference elimination of acquisition or suppression information to use senior receiver to carry out interference eliminate or suppress.
Below in conjunction with embodiment, the inventive method is specifically described.
First embodiment, suppose base station (the be designated as first base station) transmission request information of network side base station (being designated as the second base station) to adjacent cell or strong jamming community, ask the first base station to assist the user terminal in the second community, place, base station to carry out interference and eliminate or suppress.
After first base station receives the request from the first base station, the system bandwidth first self used the first base station and/or publicly-owned RNTI(are designated as NAICS-RNTI) etc. information feed back give the second base station; Then, as the first base station scheduling PDSCH, except the search volume proprietary user sends descending control signaling, and send descending control signaling in publicly-owned search volume.Wherein,
Descending control signaling is the descending control signaling for dispatching PDSCH, comprising: DCI format1, DCI format1A, DCI format1D, DCI format2, DCI format2A, DCI format2B, DCI format2C, DCI format2D.
Descending control signaling can be with one of under type:
Mode one, interference that descending control signaling carries eliminate or information needed for suppressing for: be used to indicate the modulation coding mode (MCS) that target terminal uses, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information.For example, comprising: the information of marker antenna port, scrambler ID, number of plies amount, is 3 bits; Precoding information is 3 bits (CRS port number is 2) or 6bits (CRS port number is 4);
When scheduling 1 PDSCH code word, the modulation coding mode of transmission block 1 is 5 bits; When scheduling 2 PDSCH code words, the modulation coding mode of transmission block 1 is 5 bits, and the modulation coding mode of transmission block 2 is 5 bits; Carrier wave indicates.
Mode two: interference that descending control signaling carries eliminate or information needed for suppressing for: be used to indicate the MCS that in this community, all user terminals use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information.Such as, present sub-frame scheduled 2 i.e. user 1 and users 2, then the information that descending control signaling carries comprises:
For user 1, comprising: carrier wave indicates, and the information of marker antenna port, scrambler ID, number of plies amount is 3 bits, and precoding information is 3 bits (CRS port number is 2) or 6bits (CRS port number is 4); When scheduling 1 PDSCH code word, the modulation coding mode of transmission block 1 is 5 bits; When scheduling 2 PDSCH code words, the modulation coding mode of transmission block 1 is 5 bits, and the modulation coding mode of transmission block 2 is 5 bits.
For user 2, comprising: carrier wave indicates, and the information of marker antenna port, scrambler ID, number of plies amount is 3 bits, and precoding information is 3 bits (CRS port number is 2) or 6bits (CRS port number is 4); When scheduling 1 PDSCH code word, the modulation coding mode of transmission block 1 is 5 bits; When scheduling 2 PDSCH code words, the modulation coding mode of transmission block 1 is 5 bits, and the modulation coding mode of transmission block 2 is 5 bits.
Mode three: the interference elimination that descending control signaling carries or the information needed for suppression are: be used to indicate the MCS that in this cell system bandwidth, each subband is corresponding, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information.Such as, the system bandwidth of this community is divided into N number of subband, then the information that descending control signaling carries comprises:
The information of the MCS of subband 1 correspondence and/or precoding information and/or joint instructions antenna port, scrambler ID, number of plies amount and/or carrier indication information; The information of the MCS of subband 2 correspondence and/or precoding information and/or joint instructions antenna port, scrambler ID, number of plies amount and/or carrier indication information, The information of the MCS that subband N is corresponding and/or precoding information and/or joint instructions antenna port, scrambler ID, number of plies amount and/or carrier indication information.
Like this, the user terminal of the second community, place, base station, if use senior receiver, the publicly-owned RNTI descending control signaling that blind Detecting neighbor cell sends on publicly-owned search volume can be utilized, or utilize the time-domain resource of the ePDCCH in the network-assist information of the first base station feedback and/or the information of frequency domain resource, the descending control signaling that blind Detecting first base station sends on the search volume that user is proprietary, after descending control signaling being detected, the MCS that the acquisition neighbor cell corresponding with user terminal place frequency band or strong jamming community use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, the information of number of plies amount, and/or carrier indication information, then use senior receiver to carry out interference eliminate or suppress.
Second embodiment, supposes that the second base station is by the first base station transmission request information of X2 interface to adjacent cell or strong jamming community, asks the first base station to assist the user in the second community, place, base station to carry out interference and eliminates or suppress.Wherein, solicited message comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; And/or indicate in this community whether have user terminal to use senior receiver carry out disturb eliminate or suppress information; And/or instruction has the interference elimination which PRB needs to carry out network assistance or the information suppressed; And/or the information that instruction needs the interference carrying out network assistance to eliminate or suppress in which subframe; And/or the information of indication carrier wave.
Such as, employing table 1 represents:
Table 1
Table 1 is used in reference to the specific implementation form of information that the interference that is shown with which PRB and needs to carry out network assistance is eliminated or suppressed, and is actually according to this format transmission in X2 interface.
After first base station receives request, each subband of the system bandwidth self use the first base station and/or the first community, place, base station or downlink transfer pattern corresponding to Physical Resource Block and/or publicly-owned RNTI(are designated as NAICS-RNTI) etc. information feed back to the second base station.
3rd embodiment, supposes the first base station transmission request information of the second base station to adjacent cell or strong jamming community, asks the first base station to assist the user in the second community, place, base station to carry out interference and eliminates or suppress.After first base station receives request,
First, each subband of the system bandwidth used the second base station and/or the first community, place, base station or downlink transfer pattern corresponding to Physical Resource Block and/or publicly-owned RNTI(are designated as NAICS-RNTI) etc. information feed back to the second base station; Then, as the first base station scheduling PDSCH, except the search volume proprietary user sends descending control signaling, descending control signaling can be sent in publicly-owned search volume simultaneously.Wherein, descending control signaling comprises:
Descending control signaling is the DCI format of new definition, is DCI format1X or DCI format2X or DCI format Y or DCI format3Z, the payload equal and opposite in direction of its payload size (payload size) and DCI format1C; 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.
When the user terminal of the second base station is at publicly-owned search volume blind Detecting descending control signaling, descending control signaling and DCI format1C are distinguished by high-rise RRC signaling instruction in the second base station.Or distinguished by RNTI.
4th embodiment, the second base station supposing to be disturbed community, to the first base station transmission request information of adjacent cell or strong jamming community, is asked the first base station to assist the user in the second community, place, base station to carry out interference and is eliminated or suppress.After first base station receives request,
First, the system bandwidth self used the first base station and/or the information feed back such as the time-domain resource of publicly-owned RNTI, ePDCCH and/or the information of frequency domain resource give the second base station; Then, as the first base station scheduling PDSCH, 2 set (set) are configured to ePDCCH, a set (being designated as set 1) deposits the descending control signaling of dispatching downlink user, the proprietary cyclic redundancy check (CRC) of RNTI to descending control signaling of user is used to carry out scrambling, descending control signaling is deposited in another one set (being designated as set 2), uses publicly-owned NAICS-RNTI to carry out scrambling to the CRC of descending control signaling.Wherein, descending control signaling is:
The interference elimination that descending control signaling carries or suppression information for: be used to indicate the MCS that target terminal uses, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information; Or,
The interference elimination that descending control signaling carries or suppression information for: be used to indicate the MCS that in this community, all user terminals use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information; Or,
The interference elimination that descending control signaling carries or suppression information are: be used to indicate the MCS that in this cell system bandwidth, each subband is corresponding, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information.
In the present embodiment, the second base station being disturbed community by RRC signaling to the user terminal of this community notify above-mentioned ePDCCH gather 2 time domain and frequency domain resource position, above-mentioned NAICS-RNTI; User terminal is wherein the ePDCCH of blind Detecting strong jamming community on the position of set 2 then, the MCS that the acquisition neighbor cell corresponding with user terminal place frequency band or strong jamming community use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information, then use senior receiver to carry out interference and eliminate or suppress.
5th embodiment, the second base station supposing to be disturbed community, to the first base station transmission request information of adjacent cell or strong jamming community, is asked the first base station to assist the user in the second community, place, base station to carry out interference and is eliminated or suppress.Wherein, solicited message comprises: indicate the interference needing to carry out network assistance in which subframe eliminate or suppress the information of (NAICS).
After first base station receives request, first, the system bandwidth self used the first base station and/or the information feed back such as the time-domain resource of publicly-owned NAICS-RNTI, ePDCCH and/or the information of frequency domain resource give the second base station; Then, when the first base station above-mentioned need the subframe scheduling PDSCH carrying out NAICS time, 2 set (set) are configured to ePDCCH, a set (being designated as set 1) deposits the descending control signaling of dispatching downlink user, the proprietary RNTI of user is used to carry out scrambling to the CRC of descending control signaling, descending control signaling is deposited in another one set (being designated as set 2), uses publicly-owned RNTI to carry out scrambling to the CRC of descending control signaling.Or, except the search volume proprietary user sends descending control signaling, send descending control signaling in publicly-owned search volume simultaneously.Wherein, descending control signaling carries the MCS that in instruction this cell system bandwidth, each subband is corresponding, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information.
The second base station being disturbed community by RRC signaling to the user terminal of this community notify above-mentioned ePDCCH gather 2 time domain and frequency domain resource position, above-mentioned NAICS-RNTI; Descending control signaling in the set 2 of the blind Detecting strong jamming community ePDCCH in the above-mentioned subframe needing to carry out NAICS of the user terminal in the second base station, or, at publicly-owned PDCCH search space blind Detecting descending control signaling, to obtain the MCS that the neighbor cell corresponding with user terminal place frequency band or strong jamming community use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information, then use senior receiver to carry out interference and eliminate or suppress.
Whether the second base station being disturbed community will carry out NAICS at present sub-frame by DCI informing user terminal, such as, by 1 bit indication information in DCI, value represents when being 1 that user terminal needs carry out NAICS at present sub-frame, represents that user terminal does not need to carry out NAICS at present sub-frame when value is 0.
The above, be only preferred embodiments 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, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. a signaling method, is characterized in that, comprising:
First base station sends descending control signaling in the proprietary search volume of user and/or in publicly-owned search volume;
Described descending control signaling carries user terminal and does interference elimination or the information needed for suppression.
2. signaling method according to claim 1, is characterized in that, the method also comprises: described first base station sends the descending control signaling for dispatching Physical Downlink Shared Channel in the search volume that user is proprietary;
The described descending control signaling for dispatching Physical Downlink Shared Channel is the descending control signaling for dispatching PDSCH, comprising: DCI format1 or DCI format1A or DCI format1B or DCI format1C or DCI format1D or DCI format2 or DCI format2A or DCI format2B or DCI format2C or DCI format2D.
3. signaling delivery method according to claim 1, is characterized in that,
The user terminal that described descending control signaling carries do interference eliminate or suppress needed for information for: be used to indicate the modulation coding mode MCS that target terminal uses, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information; Or,
The user terminal that described descending control signaling carries do interference eliminate or suppress needed for information for: be used to indicate the MCS that in this community, all user terminals use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information; Or,
The user terminal that described descending control signaling carries does interference elimination or the information needed for suppression is: be used to indicate the MCS that in this cell system bandwidth, each subband is corresponding, and/or precoding information, and/or joint instructions antenna port, scrambler ID, number of plies amount information, and/or carrier indication information.
4. signaling method according to claim 1, it is characterized in that, described descending control signaling is the DCI format of new definition, for DCI format1X or DCI format2X or DCI format Y or DCI format3Z, the payload equal and opposite in direction of its payload size and DCI format1C; 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.
5. signaling method according to claim 1, is characterized in that, also comprises before the method: described first base station carries out disturbing the second base station feedback network-assist information eliminated or suppress to request network assistance.
6. signaling method according to claim 5, is characterized in that, described first base station comprises to the second base station feedback network-assist information:
Described second base station to the first base station transmission request information by X2 interface, is had user terminal that senior receiver will be used to carry out interference and eliminates or suppress in the community representing the second place, base station;
After described first base station receives the solicited message from the second base station, to the second base station feedback network-assist information that request interference is eliminated or suppressed.
7. signaling method according to claim 6, is characterized in that, described request information comprises:
Indicate whether to need network assistance to carry out disturbing the information eliminated or suppress; Indicate in this community and whether have user terminal that senior receiver will be used to carry out disturbing the information eliminated or suppress; The information that the interference which Physical Resource Block PRB instruction has need to carry out network assistance is eliminated or suppressed; The information that instruction needs the interference carrying out network assistance to eliminate or suppress in which subframe; The information of indication carrier wave.
8. the signaling method according to claim 5 or 6, is characterized in that, described network-assist information comprises:
Indicate the system bandwidth that described first community, place, base station uses; And/or indicate the information of each subband of described first community, place, base station or downlink transfer pattern corresponding to Physical Resource Block; And/or the information indicating the ascending-descending subframes of described first community, place, base station to configure; And/or indicate the time-domain resource of ePDCCH and/or the information of frequency domain resource of described first community, place, base station; And/or publicly-owned RNTI; And/or the community ID of described first community, place, base station; And/or the information of indication carrier wave.
9. signaling method according to claim 8, is characterized in that, the method also comprises: described first base station uses the cyclic redundancy check CRC of described publicly-owned RNTI to descending control signaling to carry out scrambling.
10. signaling method according to claim 1 or 5, is characterized in that, when the user terminal of described second community, place, base station will use senior receiver, the method also comprises:
The user terminal of described second community, place, base station utilizes the publicly-owned RNTI in the network-assist information of the first base station feedback, the descending control signaling that described in blind Detecting, the first base station sends on publicly-owned search volume; Or, utilize the time-domain resource of the ePDCCH in the network-assist information of the first base station feedback and/or the information of frequency domain resource, the descending control signaling that described in blind Detecting, the first base station sends on the search volume that user is proprietary;
When described descending control signaling being detected, obtain user terminal and do interference elimination or the information needed for suppression: the MCS that the neighbor cell corresponding with user terminal place frequency band or strong jamming community use, and/or precoding information, and/or joint instructions antenna port, scrambler ID, the information of number of plies amount and/or carrier indication information;
Utilize the interference elimination or the information needed for suppression that obtain, use senior receiver to carry out interference and eliminate or suppress.
11. signaling methods according to claim 10, is characterized in that, when the user terminal of described second community, place, base station is at publicly-owned search volume blind Detecting descending control signaling, the method also comprises:
Described descending control signaling and DCIformat1C are distinguished by high-rise RRC signaling instruction in described second base station; Or distinguished by described publicly-owned RNTI.
12. signaling methods according to claim 1,5 or 10, it is characterized in that, the method also comprises: described first base station configuration needs the subframe sending descending control signaling, and described descending control signaling is in the upper transmission of subframe of configuration; Wherein, the subframe of configuration can reuse the instruction of ABS subframe.
13. signaling methods according to claim 12, is characterized in that, whether described second base station will use senior receiver to carry out interference at present sub-frame by DCI informing user terminal is eliminated or suppresses.
14. 1 kinds of signaling method of reseptances, is characterized in that, comprising:
The user terminal disturbing second community, place, base station of eliminating or suppress is carried out in request network assistance, utilize the time-domain resource of publicly-owned RNTI or ePDCCH in the network-assist information of the first base station feedback and/or the information of frequency domain resource, the descending control signaling that described in blind Detecting, the first base station sends on publicly-owned search volume or the proprietary search volume of user;
When descending control signaling being detected, obtain the first base station place community user terminal corresponding with user terminal place frequency band and do the information needed for eliminating or suppressing of disturbing: the MCS used, and/or precoding information, and/or joint instructions antenna port, scrambler ID, the information of number of plies amount and/or carrier indication information;
Utilize the interference elimination or the information needed for suppression that obtain, use senior receiver to carry out interference and eliminate or suppress.
15. signaling methods according to claim 14, is characterized in that, when the user terminal of described second community, place, base station is described in publicly-owned search volume or the proprietary search volume blind Detecting of user during descending control signaling, the method also comprises:
Described descending control signaling and DCIformat1C are distinguished by high-rise RRC signaling instruction in described second base station; Or distinguished by described publicly-owned RNTI.
16. 1 kinds of signaling transmitting/receiving systems, is characterized in that, at least comprise the first base station, and request network assistance is carried out disturbing second base station of eliminating or suppressing; Wherein,
First base station, does interference eliminate or the descending control signaling of information needed for suppressing for carrying user terminal in the proprietary search volume of user and/or send in publicly-owned search volume.
17. signaling transmitting/receiving systems according to claim 16, is characterized in that,
Described first base station also for, to request network assistance carry out disturb eliminate or suppress the second base station feedback network-assist information.
18. signaling transmitting/receiving systems according to claim 17, is characterized in that,
Described second base station, for by the base station i.e. first base station transmission request information of X2 interface to neighbor cell or strong jamming community, has user terminal that senior receiver will be used to carry out interference in the community representing the second place, base station and eliminates or suppress;
Described first base station, also for after receiving the solicited message from the second base station, to the second base station feedback network-assist information that request interference is eliminated or suppressed.
19. signaling transmitting/receiving systems according to any one of claim 16 ~ 18, is characterized in that, when the user terminal of described second community, place, base station will use senior receiver,
The user terminal of described second community, place, base station, for utilizing the time-domain resource of publicly-owned RNTI or ePDCCH in the network-assist information of the first base station feedback and/or the information of frequency domain resource, the descending control signaling that blind Detecting first base station sends on publicly-owned search volume or the proprietary search volume of user; When described descending control signaling being detected, obtain the user terminal that the first base station place community corresponding with user terminal place frequency band use and do the information needed for eliminating or suppressing of disturbing: MCS, and/or precoding information, and/or joint instructions antenna port, scrambler ID, the information of number of plies amount and/or carrier indication information, use senior receiver to carry out interference and eliminate or suppression.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310452519.9A CN104518806B (en) | 2013-09-27 | 2013-09-27 | A kind of signaling method, method of reseptance and signaling transmitting/receiving system |
| PCT/CN2014/078128 WO2014180382A1 (en) | 2013-09-27 | 2014-05-22 | Signal sending method and receiving method, and signal sending/receiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310452519.9A CN104518806B (en) | 2013-09-27 | 2013-09-27 | A kind of signaling method, method of reseptance and signaling transmitting/receiving system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104518806A true CN104518806A (en) | 2015-04-15 |
| CN104518806B CN104518806B (en) | 2018-11-30 |
Family
ID=51866763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310452519.9A Active CN104518806B (en) | 2013-09-27 | 2013-09-27 | A kind of signaling method, method of reseptance and signaling transmitting/receiving system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104518806B (en) |
| WO (1) | WO2014180382A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016173489A1 (en) * | 2015-04-30 | 2016-11-03 | 电信科学技术研究院 | Control information sending method and receiving method, sender and receiver |
| CN106713193A (en) * | 2015-07-20 | 2017-05-24 | 北京三星通信技术研究有限公司 | Multi-user multiplexing transmission method and device |
| CN107534474A (en) * | 2015-04-09 | 2018-01-02 | 株式会社Ntt都科摩 | Wireless base station, user terminal, wireless communication system and wireless communications method |
| CN107850964A (en) * | 2015-05-22 | 2018-03-27 | 触觉实验室股份有限公司 | Transmission and reception system and method for orthogonal signaling sensor |
| CN108259152A (en) * | 2015-10-23 | 2018-07-06 | 上海朗帛通信技术有限公司 | Dispatching method and device in a kind of narrow band communication |
| WO2019183762A1 (en) * | 2018-03-26 | 2019-10-03 | 华为技术有限公司 | Antenna port indication method and apparatus |
| CN113839755A (en) * | 2020-06-23 | 2021-12-24 | 维沃移动通信有限公司 | Control signaling obtaining method, sending method, device, terminal and network side equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107852730A (en) * | 2015-04-09 | 2018-03-27 | 华为技术有限公司 | Method and device, base station and the disturbed user equipment of transmission parameter information |
| US10886958B2 (en) * | 2019-03-18 | 2021-01-05 | Mediatek Inc. | Over-the-air signal assisted interference cancellation or suppression |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291736A (en) * | 2011-08-08 | 2011-12-21 | 中兴通讯股份有限公司 | Detection method of downlink control channel, user equipment and base station |
| CN102447524A (en) * | 2010-10-11 | 2012-05-09 | 电信科学技术研究院 | Information indication method and equipment |
| WO2013066399A1 (en) * | 2011-11-04 | 2013-05-10 | Qualcomm Incorporated | Method and apparatus for interference cancellation by a user equipment using blind detection |
-
2013
- 2013-09-27 CN CN201310452519.9A patent/CN104518806B/en active Active
-
2014
- 2014-05-22 WO PCT/CN2014/078128 patent/WO2014180382A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447524A (en) * | 2010-10-11 | 2012-05-09 | 电信科学技术研究院 | Information indication method and equipment |
| CN102291736A (en) * | 2011-08-08 | 2011-12-21 | 中兴通讯股份有限公司 | Detection method of downlink control channel, user equipment and base station |
| WO2013066399A1 (en) * | 2011-11-04 | 2013-05-10 | Qualcomm Incorporated | Method and apparatus for interference cancellation by a user equipment using blind detection |
Non-Patent Citations (2)
| Title |
|---|
| ORANGE, TELECOM ITALIA, DEUTSCHE TELEKOM, T-MOBILE USA, CHINA UN: "Scenarios for network-assisted interference cancellation and suppression", 《3GPP，TSG-RAN WG1 #72BIS，R1-131594》 * |
| ZTE: "Consideration for network assisted receiver enhancement", 《3GPP，TSG-RAN1#72BIS，R1-131061》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107534474A (en) * | 2015-04-09 | 2018-01-02 | 株式会社Ntt都科摩 | Wireless base station, user terminal, wireless communication system and wireless communications method |
| WO2016173489A1 (en) * | 2015-04-30 | 2016-11-03 | 电信科学技术研究院 | Control information sending method and receiving method, sender and receiver |
| US10660078B2 (en) | 2015-04-30 | 2020-05-19 | China Academy Of Telecommunications Technology | Control information sending method and receiving method, sender and receiver |
| CN107850964A (en) * | 2015-05-22 | 2018-03-27 | 触觉实验室股份有限公司 | Transmission and reception system and method for orthogonal signaling sensor |
| CN107850964B (en) * | 2015-05-22 | 2021-04-02 | 触觉实验室股份有限公司 | Transmitting and receiving system and method for bidirectional orthogonal signaling sensor |
| CN106713193A (en) * | 2015-07-20 | 2017-05-24 | 北京三星通信技术研究有限公司 | Multi-user multiplexing transmission method and device |
| CN108259152A (en) * | 2015-10-23 | 2018-07-06 | 上海朗帛通信技术有限公司 | Dispatching method and device in a kind of narrow band communication |
| CN108259152B (en) * | 2015-10-23 | 2021-06-22 | 息思维国际股份有限公司 | Scheduling method and device in narrow-band communication |
| WO2019183762A1 (en) * | 2018-03-26 | 2019-10-03 | 华为技术有限公司 | Antenna port indication method and apparatus |
| CN113839755A (en) * | 2020-06-23 | 2021-12-24 | 维沃移动通信有限公司 | Control signaling obtaining method, sending method, device, terminal and network side equipment |
| CN113839755B (en) * | 2020-06-23 | 2023-04-18 | 维沃移动通信有限公司 | Control signaling obtaining method, sending method, device, terminal and network side equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104518806B (en) | 2018-11-30 |
| WO2014180382A1 (en) | 2014-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102291213B (en) | A kind of terminal and method for calculating channel quality indication (CQI) information | |
| AU2019203705B2 (en) | Method and device for processing interference, network control unit and user equipment | |
| EP3164947B1 (en) | Signaling of network-assisted intra-cell interference cancellation and suppression | |
| CN102595469B (en) | A kind of determination method of channel quality indication (CQI) information | |
| CN101800622B (en) | The signaling configuration method of Physical Uplink Shared Channel and system | |
| CN108599832B (en) | Method, user equipment and the base station of reporting status information of channel | |
| CN104518806A (en) | Signaling sending method, receiving method, and signaling sending/receiving system | |
| CN106416106B (en) | The user equipment and method that CSI enhancing is carried out with suppression receiver are eliminated using interference | |
| WO2015158111A1 (en) | Method and apparatus for downlink data rate matching | |
| CN105359569A (en) | Method for channel state report in wireless communication system and apparatus therefor | |
| CN105191174A (en) | Method for canceling interference in wireless communication system and apparatus therefor | |
| CN104105120A (en) | Interference measuring method, network side equipment and terminal equipment | |
| CN104115420A (en) | Multi-hypothesis channel quality indicator feedback | |
| CN104349491A (en) | PESCH (physical downlink shared channel) transmission method, system and network side equipment | |
| CN102111246A (en) | Method for feeding back channel state information and user equipment | |
| CN103780358A (en) | Method and terminal for confirming channel state information | |
| CN103650368A (en) | Channel state information transmitting method and user equipment, and channel state information receiving method and base station | |
| CN102395163A (en) | Coordinated multipoint transmission system and information interaction method therein | |
| CN104885502A (en) | Method for measuring interference in wireless communication system, and apparatus therefor | |
| CN103580812B (en) | A kind of feedback method and user equipment of channel state information | |
| WO2013088374A2 (en) | Enhanced demodulation reference signal (dm-rs) design | |
| CN102291225B (en) | Channel state information periodic feedback method and device | |
| CN102427396A (en) | Information interaction method for inter-cell uplink demodulation reference signal (DMRS) and base station | |
| CN104284361A (en) | Interference measuring method, network side device and terminal side device | |
| US11101957B2 (en) | Reference signal sending method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |