WO2015123968A1 - 一种开销信息传输方法,基站、终端和系统 - Google Patents
一种开销信息传输方法,基站、终端和系统 Download PDFInfo
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- WO2015123968A1 WO2015123968A1 PCT/CN2014/083415 CN2014083415W WO2015123968A1 WO 2015123968 A1 WO2015123968 A1 WO 2015123968A1 CN 2014083415 W CN2014083415 W CN 2014083415W WO 2015123968 A1 WO2015123968 A1 WO 2015123968A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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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—Signalling for the administration of the divided path, e.g. signalling of configuration information
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Definitions
- the present invention relates to data demodulation techniques in the field of communications, and in particular, to an overhead information transmission method, a base station, a terminal, and a system. Background technique
- LTE Long Term Evolution
- 4G Fourth Generation
- MCS Modulation and Coding Scheme
- the complexity of the method is relatively low, and the accuracy of the interference signal obtained by the terminal is relatively high, but the disadvantage is: the corresponding information of the base station transmitting the interference signal increases the downlink overhead information, especially when the interference signal is relatively large, the downlink overhead There will be more information, and reducing the downlink overhead information is also one of the key tasks of wireless communication system optimization.
- the downlink overhead information is mainly transmitted in the downlink control channel.
- the performance of the terminal demodulation downlink control channel is reduced. If the downlink overhead information is sent in the downlink shared channel, this not only increases the delay of the terminal acquiring the downlink overhead information, but also before the terminal demodulates the data of the downlink shared channel. It is necessary to obtain the information of the interference signal first, so as to better demodulate the data of the downlink shared channel.
- the embodiments of the present invention provide an overhead information transmission method, a base station, a terminal, and a system.
- An embodiment of the present invention provides an overhead information transmission method, where the method includes:
- the base station sends the downlink control information DCI to the terminal through the downlink control channel, where the X bits in the DCI are used to indicate the M sets of downlink reference information of other terminals except the terminal;
- the X is a positive integer
- the M is a positive integer smaller than a value represented by a downlink data processing capability parameter of the terminal.
- the embodiment of the present invention further provides an overhead information transmission method, where the method includes: the terminal acquiring, from the downlink control information DCI of the downlink control channel, N sets of downlink reference information of other terminals except the terminal;
- the N is a positive integer smaller than the value represented by the downlink data processing capability parameter; the N is less than or equal to M, and the M is the number of sets of downlink reference information of the other terminal sent by the base station.
- the embodiment of the present invention further provides a base station, where the base station includes: a sending module, configured to send downlink control information DCI to the terminal by using a downlink control channel, where X bits in the DCI are used to indicate other than the terminal M sets of downlink reference information of other terminals;
- the X is a positive integer
- the M is a positive integer smaller than a value represented by a downlink data processing capability parameter of the terminal.
- the embodiment of the present invention further provides a terminal, where the terminal includes: an acquiring module, configured to acquire, from the downlink control information DCI of the downlink control channel, N of other terminals except the terminal Set of downlink reference information;
- the N is a positive integer smaller than the value represented by the downlink data processing capability parameter; the N is less than or equal to M, and the M is the number of sets of downlink reference information of the other terminal sent by the base station.
- An embodiment of the present invention further provides an overhead information transmission system, where the system includes: the base station and the terminal described above.
- the bit is used to indicate the M sets of downlink reference information of the terminal other than the terminal; wherein the X is a positive integer, and the M is a positive integer smaller than a value represented by the downlink data processing capability parameter of the terminal.
- the base station increases the downlink control channel overhead according to the downlink data processing capability parameter fed back by the terminal, thereby improving the demodulation performance of the terminal. Since the terminal feedbacks the downlink data processing capability parameter in a small number of times, the uplink data processing capability parameter occupies a very small uplink overhead, which can be neglected.
- FIG. 1 is a schematic flowchart of an implementation of an overhead information transmission method according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of an interference scenario of downlink data of multiple other terminals according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention
- FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of an overhead information transmission system according to an embodiment of the present invention. Detailed ways
- the base station after receiving the downlink data processing capability parameter sent by the terminal, the base station sends downlink control information (DCI) to the terminal through the downlink control channel, where X bits in the DCI are used to indicate other terminals.
- DCI downlink control information
- M sets of downlink reference information; wherein, X is a positive integer, and the M is a positive integer smaller than a value represented by a downlink data processing capability parameter of the terminal.
- FIG. 1 is a schematic flowchart of an implementation process of an overhead information transmission method according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
- Step 101 The base station receives a downlink data processing capability parameter sent by the terminal.
- Step 102 The base station sends the downlink control information DCI to the terminal by using the downlink control channel, where the X bits in the DCI are used to indicate the M sets of downlink reference information of the terminals other than the terminal.
- the X is a positive integer
- the M is a positive integer smaller than a value represented by a downlink data processing capability parameter of the terminal.
- the other terminal is: a terminal that overlaps with a physical resource occupied by the terminal data.
- the X is calculated according to the magnitude of the M value
- the X dynamically changes in different transmission time intervals TTI
- the X is less than or equal to a value set by the system radio resource control protocol RRC;
- the X is less than or equal to a value set by the system RRC according to the downlink data processing capability parameter
- the X is less than or equal to a corresponding value represented by the downlink data processing capability parameter.
- the downlink data processing capability parameter has at least one of the following features:
- the downlink data processing capability parameter is expressed as: a maximum number of layers of downlink data that the terminal can process, The maximum number of layers of downlink data that the terminal can process is greater than or equal to the maximum number of layers that the terminal can demodulate data represented by the terminal category UE Category parameter;
- the downlink data processing capability parameter is expressed as: the number of degrees of freedom that the terminal can process; the downlink data processing capability parameter is expressed as: the number of receiving antennas of the terminal.
- the value of the downlink data processing capability parameter is: a value represented by the downlink data processing capability parameter.
- the value of the downlink data processing capability parameter is: a value represented by the downlink data processing capability parameter minus a value obtained by demodulating a maximum number of layers by the terminal indicated by the UE Categary parameter.
- the method further includes:
- the base station After the base station sends a terminal capability query UE Capability Enquiry message to the terminal, the base station receives the downlink data processing capability parameter sent by the terminal.
- the DCI includes: a parameter indicating a set number M of downlink reference information to be sent by the base station.
- the DCI further includes: the other terminal downlink reference information update indication parameter.
- the set of downlink reference information of the other terminal includes: at least: user pilot information.
- the pilot information of the user includes at least: a downlink reference signal port number.
- the pilot information of the user of the at least one set of downlink reference information includes at least: sending, when the set of downlink information of the other terminal belongs to the other terminal served by the other cell. a cell number Cell lD information of the cell of the user pilot, where U is a positive integer equal to or less than M;
- the other cell is: a cell different from a cell to which the terminal belongs; the other cell belongs to the base station or does not belong to the base station.
- the method further includes: The base station presets a set of downlink reference information parameters including the other terminals, and then selects a subset from the set as the M sets of downlink reference information of the other terminals.
- the method further includes: the base station sequentially transmitting the M sets of downlink reference information of the other terminals.
- the method further includes:
- the base station When the serving cells of the L other terminals include the local cell and other cells, the base station first sends the downlink reference information of the other terminal of the local cell, and then sends the downlink reference information of the other terminal of the other cell;
- the L is a positive integer that is less than or equal to M, and the L other terminals are: the terminal corresponding to the M sets of downlink reference information sent by the base station.
- the method further includes:
- the base station sequentially sends the M sets of downlink reference information of the other terminal according to the strength of the interference of the other terminal to the terminal.
- the embodiment of the present invention further provides an overhead information transmission method, where the method includes: the terminal acquiring, from the downlink control information DCI of the downlink control channel, N sets of downlink reference information of other terminals except the terminal;
- the N is a positive integer smaller than the value represented by the downlink data processing capability parameter; the N is less than or equal to M, and the M is the number of sets of downlink reference information of the other terminal sent by the base station.
- the other terminal is: a terminal that overlaps with a physical resource occupied by the terminal data.
- the method further includes:
- the terminal demodulates the data sent by the base station according to the obtained downlink reference information of the other terminal and the data scheduling information acquired from the downlink control channel.
- the downlink data processing capability parameter has at least one of the following features:
- the downlink data processing capability parameter is expressed as: a maximum layer of downlink data that the terminal can process Number,
- the maximum number of layers of downlink data that the terminal can process is greater than or equal to the maximum number of layers that the terminal can demodulate data represented by the terminal class UE Category parameter;
- the downlink data processing capability parameter is expressed as: a degree of freedom that the terminal can process; the downlink data processing capability parameter is expressed as: the number of receiving antennas of the terminal.
- the value of the downlink data processing capability parameter is: a value represented by the downlink data processing capability parameter.
- the value of the downlink data processing capability parameter is: a value represented by the downlink data processing capability parameter minus a value obtained by demodulating a maximum number of layers by the terminal indicated by the UE Categary parameter.
- the method further includes:
- the terminal After receiving the terminal capability query UE Capability Enquiry message sent by the base station, the terminal sends a downlink data processing capability parameter to the base station.
- each set of information includes at least: pilot information of the user.
- the pilot information of the user includes at least: a downlink reference signal port number.
- the method further includes: when the terminal demodulates the data sent by the base station, performing interference suppression processing according to the obtained downlink reference information of the other terminal.
- the method further includes: detecting, by the terminal, the data signal sent by the base station by using a minimum mean square error-interference rejection combining (MMSE-IRC) advanced detection algorithm according to the acquired downlink reference information of the other terminal, and then detecting Decode.
- MMSE-IRC minimum mean square error-interference rejection combining
- the advanced receiving algorithm can suppress certain interference and improve the demodulation performance of the terminal.
- This requires the base station to send relevant information of the interference signal to the terminal, and the related information of the base station transmitting the interference signal is increased.
- Downlink overhead information especially when there are more interference signals, there will be more downlink overhead information, which will affect the performance of downlink transmission.
- the terminal has a certain ability to suppress the interference signal.
- the number of interference signals exceeds the processing power of the terminal, obtaining more interference signal information can not improve the demodulation performance of the terminal.
- the terminal's downlink data processing capability is expressed as: The maximum number of downlink data that the terminal can process.
- the maximum number of layers is related to the number of receiving antennas of the terminal. When the correlation between the receiving antennas of the terminal is not high, the maximum number of layers is generally equal to the number of receiving antennas of the terminal; the maximum number of layers is also the number of degrees of freedom that the terminal can handle. In general, this maximum number of layers is equal to the number of degrees of freedom that the terminal can handle.
- the maximum number of downlink data that the terminal, that is, the user equipment (UE) can process is greater than or equal to the maximum number of layers that the terminal can demodulate data represented by the terminal category (UE Category) parameter.
- the terminal sends the downlink data processing capability parameter of the terminal to the base station.
- the terminal sends the downlink data processing capability parameter to the base station.
- the terminal sends the downlink data processing to the base station. Capability parameter.
- the base station receives the downlink data processing capability parameter sent by the terminal.
- the base station receives the indication message to the terminal.
- the base station receives the downlink data processing capability parameter sent by the terminal.
- the base station sends the terminal capability query (UECapabilityEnquiry) message to the terminal, the base station receives the downlink data processing capability parameter sent by the terminal. .
- UECapabilityEnquiry terminal capability query
- the base station obtains the downlink data processing capability parameter of the terminal, and can send information of other terminals (also referred to as other users) whose downlink data interference is relatively strong to the terminal, and those users whose downlink data interferes relatively weakly.
- the information can be sent to the terminal without being used, so that the downlink overhead information can be reduced.
- the terminal obtains information of other users whose downlink data interference is relatively strong, and can suppress the interference by using an advanced demodulation algorithm. Improve demodulation performance. If the terminal obtains information of other users whose downlink data interference is relatively weak, the demodulation performance will not be significantly improved. Therefore, even if the terminal does not obtain information of other users whose downlink data interference is relatively weak, Will reduce the effect of advanced demodulation algorithms.
- the other terminals that are relatively strong in downlink data interference mentioned here refer to those terminals whose downlink data sent by the base station or other base station to other terminals is relatively strong in interference with the demodulated data of the terminal.
- the other terminals that are relatively weak in downlink data interference mentioned herein refer to those terminals in which the downlink data sent by the base station or other base stations to other terminals is relatively weak to the demodulated data of the terminal.
- Other terminals that generate interference due to the downlink data are also referred to herein as interfering terminals or interfering users.
- the information of the other terminal mainly refers to: downlink reference information sent by the base station and related to other terminals.
- a UE-specific reference signal antenna port For example, a UE-specific reference signal antenna port, a cell ID, and the like.
- a UE-Specific reference signal is sometimes referred to as a Demodulation Reference Signal (abbreviated as DMRS).
- DMRS Demodulation Reference Signal
- the base station can send other interference user information in the DCI of the downlink control channel (also referred to as downlink control signaling), which can facilitate the terminal to receive and receive, and at the same time, can conveniently control the size of the DCI.
- the specific way for the base station to send other interfering user information is as follows:
- the base station sends the data scheduling information of the terminal on the downlink control channel, and sends the downlink information of the M sets of other terminals that overlap with the physical resources occupied by the terminal data in the DCI of the downlink control channel, where the M is smaller than the downlink data processing.
- TTI transmission time interval
- the base station does not need to transmit the DCI in each port, that is, the base station does not transmit the DCI in some ports, and transmits the DCI in some other TTIs.
- the size of the M value that is, the mathematical formula for calculating the X size contains the parameter M.
- the size of the DCI is calculated based on the magnitude of the M value.
- the size of X can also be related to the size of each set of information. The size of each set of information can be fixed or changed slowly, and the M value can be changed faster. The M value can be different in different TTIs. Therefore, the size of the X changes dynamically in different TTIs, that is, the size of the DCI may be the same or different in different TTIs.
- the size of the X may also be set according to a value set by the system RRC and less than or equal to a value set by the system RRC.
- the value set by the system RRC can be set according to the downlink data processing capability parameter.
- the X size can be dynamically varied in different TTIs.
- the corresponding value represented by the downlink data processing capability parameter is set in advance, and the X size may be smaller than a corresponding value represented by the downlink data processing capability parameter.
- the serving base station of other users may be the base station or other base stations.
- a general base station includes one or more cells (or sectors).
- a base station as described herein may also refer to a cell.
- the base station described herein may also refer to a cell of an LTE system.
- the serving cell of other users may be the own cell or other cells.
- the foregoing overlaps with the physical resources occupied by the terminal data, which means that the downlink data sent by the base station to the terminal overlaps with the physical resources occupied by the downlink data sent by the base station or other base station to other terminals.
- the physical resource refers to a wireless physical resource, and refers to a time domain and a frequency domain location where data is in a wireless transmission process.
- physical resources can refer to resource elements (RE).
- RE resource elements
- the overlapping phenomenon means that the base station sends data to the terminal on a certain physical resource, and the base station or other base station also sends data to other users on the physical resource. Data sent to different users on the same physical resource may generally have interference.
- the number of the other terminals is L, and L is a positive integer less than or equal to M.
- the same physical resources are used for transmission, and there may be data of another user.
- the interference of the data of the other users may be relatively weak to the terminal, so these additional The user is not included in the other users.
- the DCI may also include: a parameter indicating the number M of downlink reference information to be sent by the base station.
- the DCI may also include: other terminal downlink reference information update indication parameters.
- each set of information includes but is not limited to: the pilot information of the user.
- the pilot information of the user refers to downlink reference signal information related to the user sent by the base station.
- the pilot information of the user includes but is not limited to: a downlink reference signal port number.
- the pilot information of the user of the at least one set of downlink reference information includes but is not limited to: The Cell ID information of the cell that sends the user pilot, U is a positive integer less than M. If the terminal belongs to the same cell service as some other terminal, the pilot information of the other terminal may not include the Cell ID information of the cell.
- the base station presets a set of downlink reference information parameters including other terminals, and then selects a subset from the set as the M sets of downlink reference information of other terminals, and transmits in the DCI of the downlink control channel.
- the base station sends the M sets of downlink reference information of other terminals in a certain order.
- the serving base stations of the L other terminals include the base station and other base stations.
- the base station first transmits information of other users of the base station, and then transmits information of other users of other base stations.
- the L other terminals are: the terminal corresponding to the M sets of downlink reference information sent by the base station.
- the base station first sends information of other users of the current cell, and then sends information of other users of other cells.
- the L other terminals are the terminals that send the M sets of downlink reference information to the base station.
- the serving base station and the serving cell belong to an LTE system.
- the other user data may interfere with the data that the terminal needs to demodulate.
- some user data has a relatively strong interference
- some user data has relatively weak interference.
- the interference suppression effect of the terminal demodulation algorithm is more important for the information of other users whose downlink data interference is relatively strong.
- the base station sequentially sends the M sets of downlink reference information of other users (or other terminals) according to the interference strength caused by the information of other users to the terminal.
- the base station first transmits the data scheduling information of the other user that is relatively more interfered by the terminal, and obtains the N sets of downlink reference information of the other terminal from the DCI of the downlink control channel, A positive integer that is less than the value represented by the downstream data processing capability parameter.
- the value of N can be less than or equal to the value of M.
- the downlink control channel in which the terminal acquires the data scheduling information, and the downlink control channel that obtains the M sets of information of other users that overlap with the physical resources occupied by the terminal data from the DCI, is in the same TTI or different TTIs. .
- the terminal demodulates data sent by the base station to the terminal according to the acquired information.
- each set of information includes but is not limited to: Pilot information.
- the pilot information of the user includes but is not limited to: a downlink reference signal port number.
- Each set of information of the other terminal acquired by the terminal may be less than each set of information of the other terminals sent by the base station.
- the terminal when demodulating data sent by the base station to the terminal, the terminal performs interference suppression processing according to the acquired information to improve performance of the terminal demodulating data.
- the terminal detects the data signal sent by the base station to the terminal by using the MMSE-IRC advanced detection algorithm according to the acquired information, and then sends the data signal to the decoding module for decoding.
- the terminal may also use other advanced receiving algorithms to demodulate the data signals sent by the base station to the terminal according to the acquired information.
- FIG. 2 is a schematic diagram of an interference scenario of downlink data of multiple other terminals according to an embodiment of the present invention.
- base station A contains three cells: Al, A2, and A3, and base station B contains three cells: Bl, B2, and B3.
- the serving cell of the terminal UE1 and UE2 is A1, the serving cell of the terminal UE3 is A2, the serving cell of the terminal UE4 is A3, the serving cell of the terminal UE5 is Bl, and the serving cell of the terminal UE6 is B2.
- the maximum number of layers of downlink data that UE1 can process is also 4.
- UE1's terminal class (UE Category) is Category 4, indicating that UE1 can demodulate 2 layers of data at the maximum.
- the base station A sends the single layer data to the UE1 on a certain physical time-frequency resource.
- the cell A1 of the base station A sends the single layer downlink data to the UE1 on a certain physical time-frequency resource.
- the cell A1 of the base station A sends the single layer data to the UE2 on the same physical time-frequency resource; the cell A2 of the base station A also sends the single layer data to the UE3 on the same physical time-frequency resource; Cell A3 sends a single layer to UE4 on the same physical time-frequency resource.
- the cell B1 of the base station B sends the single layer data to the UE5 on the same physical time-frequency resource; the cell B2 of the base station B also sends the single layer data to the UE6 on the same physical time-frequency resource. In this way, when the UE demodulates the downlink data sent by the base station A, it is interfered by the downlink data of the UE2, the UE3, the UE4, the UE5, and the UE6.
- UE1 sends UE1 downlink data processing capability parameter Q to base station A, and parameter Q indicates that the maximum number of downlink data that UE1 can process is 4.
- the correspondence between the parameter Q and the maximum number of layers of downlink data that the terminal can process can also be set in advance, and then the Q value is equal to the value corresponding to the maximum number of layers of downlink data that the UE1 can process.
- the interference strength of the downlink data of UE2, UE3, UE4, UE5, and UE6 to UE1 is: UE5, UE2, UE3, UE4, UE6.
- the base station After receiving the downlink data processing capability parameter Q sent by the UE1, the base station sends a total of three sets of downlink reference information of the UE2, the UE5, and the UE3 in the downlink control channel DCI. Obviously 3 is less than or equal to the maximum number of layers 4 of downlink data that UE1 can process.
- the downlink data demodulation reference signal (DM S ) port number of the cell A1 of the base station A is allocated to the UE2, and the cell ID of the cell A1 is ID1; the downlink data demodulation reference signal of the cell A2 of the base station A is allocated to the UE3 (DM) S)
- the port number is AP2, the cell ID of cell A2 is ID2; the downlink data demodulation reference signal (DMRS) port number assigned to UE5 of cell B of base station B is AP3, and the cell ID of cell B1 is ID3;
- A1 may send the three sets of downlink reference information in the downlink control channel in the order of interference strength: ID3, AP3, API, ID2, AP2, and may also send the three sets of downlink reference signals in the order of other cells after the first cell.
- the Cell ID of the cell A1, that is, the ID1 may not be transmitted. Of course, it may be transmitted for the convenience of the base station transmission and the terminal receiving operation.
- the bit size occupied by the cell A1 of the base station A on the downlink control channel for transmitting the three sets of downlink reference information is related to 3, and can be calculated according to the value of 3. In this way, the base station A can allocate a certain amount of physical time-frequency resources in advance to send the three sets of downlink reference information.
- the cell A1 of the base station A may also send only one set or two sets of downlink reference information, or may send different sets of downlink reference information in different TTIs.
- the base station A can also set a value R according to the downlink data processing capability parameter Q fed back by the terminal UE1, and the number of bits occupied by the three sets of downlink reference information is less than or equal to R; if the three sets of downlink reference information are occupied If the number of bits is greater than R, the cell A1 of the base station A may also transmit only one set or two sets of downlink reference information.
- the terminal UE1 obtains downlink data scheduling information from the downlink control channel of the cell A1, and obtains the three sets of downlink reference information from the downlink control channel, and may also obtain only one or two sets of downlink reference information.
- Each set of information of the other terminal acquired by the terminal may be less than each set of information of the other terminals sent by the base station.
- the terminal when demodulating data sent by the base station to the terminal, the terminal performs interference suppression processing according to the acquired information to improve performance of the terminal demodulating data.
- the terminal detects the data signal sent by the base station to the terminal by using the MMSE-IRC advanced detection algorithm according to the acquired information, and then sends the data signal to the decoding module for decoding.
- the terminal may also use other advanced receiving algorithms to demodulate the data signals sent by the base station to the terminal according to the acquired information.
- the embodiment of the present invention further provides a base station.
- the base station 30 includes: a sending module 301, configured to send a DCI to a terminal by using a downlink control channel, where X in the DCI The bit is used to indicate the M sets of downlink reference information of the terminal other than the terminal; wherein the X is a positive integer, and the M is a positive integer smaller than a value represented by the downlink data processing capability parameter of the terminal.
- the other terminal is: a terminal that overlaps with a physical resource occupied by the terminal data.
- the X is calculated according to the magnitude of the M value
- the X dynamically changes in different transmission time intervals TTI
- the X is less than or equal to a value set by the system radio resource control protocol RRC;
- the X is less than or equal to a value set by the system RRC according to the downlink data processing capability parameter
- the X is less than or equal to a corresponding value represented by the downlink data processing capability parameter.
- the downlink data processing capability parameter has at least one of the following features:
- the downlink data processing capability parameter is expressed as: the maximum number of downlink data that the terminal can process,
- the maximum number of layers of downlink data that the terminal can process is greater than or equal to the maximum number of layers that the terminal can demodulate data represented by the UE Category parameter;
- the downlink data processing capability parameter is expressed as: the number of degrees of freedom that the terminal can process; the downlink data processing capability parameter is expressed as: the number of receiving antennas of the terminal.
- the base station further includes: a receiving module 302, configured to send, by the base station, the terminal
- the downlink data processing capability parameter sent by the terminal is received.
- the base station further includes: a setting module 303, configured to preset a set of downlink reference information parameters including the other terminals, and then select a subset from the set as the M set of the other terminal Reference Information.
- the sending module 301 is configured to send M sets of downlink reference information of other terminals in sequence.
- the sending module 301 is configured to first send downlink reference information of the other terminal of the local cell, and then send the Downlink reference information of other terminals;
- the L is a positive integer that is less than or equal to M, and the L other terminals are: the terminal corresponding to the M sets of downlink reference information sent by the base station.
- the sending module 301 is configured to sequentially send the M sets of downlink reference information of the other terminal according to the strength of the interference of the other terminal to the terminal.
- the sending module 301, the receiving module 302, and the setting module 303 can pass through a central processing unit (CPU), a digital signal processor (DSP) in the base station 30. Or a Field-Programmable Gate Array (FPGA) implementation.
- CPU central processing unit
- DSP digital signal processor
- FPGA Field-Programmable Gate Array
- the embodiment of the present invention further provides a terminal.
- the terminal 40 includes: an obtaining module 401, configured to acquire, from the downlink control information DCI of the downlink control channel, N of other terminals except the terminal. Set of downlink reference information;
- the N is a positive integer smaller than the value represented by the downlink data processing capability parameter; the N is less than or equal to M, and the M is the number of sets of downlink reference information of the other terminal sent by the base station.
- the other terminal is: a terminal that overlaps with a physical resource occupied by the terminal data.
- the terminal further includes: a demodulation module 402, configured to: according to the downlink reference information of the other terminal acquired by the acquiring module, and the data scheduling information acquired from the downlink control channel, to solve the data sent by the base station Tune
- the obtaining module 401 is further configured to acquire data scheduling information from the downlink control channel.
- the terminal further includes: a sending module 403, configured to: after the terminal receives the UE Capability Enquiry message sent by the base station, send the downlink data processing capability parameter to the base station.
- the demodulation module 402 is further configured to perform interference suppression processing according to the obtained downlink reference information of the other terminal when the data sent by the base station is demodulated.
- the demodulation module 402 is further configured to detect, according to the obtained downlink reference information of other terminals, a minimum mean square error-interference rejection combining (MMSE-IRC) advanced detection algorithm to detect a data signal sent by the base station. And then decode it.
- MMSE-IRC minimum mean square error-interference rejection combining
- the obtaining module 401, the demodulating module 402, and the sending module 403 can be implemented by using a CPU, a DSP, or an FPGA in the terminal 40.
- An embodiment of the present invention further provides an overhead information transmission system. As shown in FIG. 5, the system includes: the base station 30 and the terminal 40 described above.
- the base station can increase the demodulation performance of the terminal by increasing the overhead of the downlink control channel according to the downlink data processing capability parameter fed back by the terminal. Since the number of times the terminal feeds down the data processing capability parameters is small, the uplink overhead occupied by the downlink data processing capability parameter is very small and almost negligible.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment of a combination of software and hardware. Moreover, the invention can be embodied in the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
本发明公开了一种开销信息传输方法,该方法包括:基站通过下行控制信道发送下行控制信息(DCI)给终端,所述DCI中的X个比特用于指示除所述终端之外的其他终端的M套下行参考信息;其中,所述X为正整数,所述M为小于所述终端的下行数据处理能力参数所表示数值的正整数。本发明还同时公开了一种与所述方法对应的基站、终端和系统。
Description
一种开销信息传输方法, 基站、 终端和系统 技术领域
本发明涉及通信领域中的数据解调技术, 尤其涉及一种开销信息传输 方法, 基站、 终端和系统。 背景技术
长期演进(Long Term Evolution, LTE )技术是第四代移动通信技术 ( Fourth Generation, 4G )的无线蜂窝通信技术。 随着以后移动通信蜂窝越 来越密集, 用户间的干扰是一个比较重要的问题。 目前, 已经有多种高级 接收算法被提出, 这些高级接收算法可以抑制一定的干扰, 可以提升接收 端的解调性能。 然而, 抑制干扰能力比较好的所述高级接收算法需要获取 其他干扰信号的相关信息,比如导频信息、编码调制(Modulation and Coding Scheme, MCS )信息等。 法是, 终端通过盲检测算法估计出干扰信号信息, 这种方法复杂度相对比 较高, 而且估计出的干扰信号信息有一定的误差; 另一种方法是, 基站给 终端发送干扰信号的相关信息, 这种方法复杂度相对比较低, 而且终端获 取的干扰信号信息准确性相对较高, 但缺点是: 基站发送干扰信号的相应 信息会增加下行开销信息, 特别是当干扰信号比较多时, 下行开销信息也 会比较多, 减少下行开销信息也是无线通信系统优化的重点工作之一。
LTE 系统中, 下行开销信息主要是在下行控制信道中发送, 为了减少 下行开销信息, 如果釆用更高的 MCS调制的话, 会降低终端解调下行控制 信道的性能。 如果将下行开销信息放在下行共享信道中发送, 这不但会增 加终端获取下行开销信息的时延, 而且终端解调下行共享信道的数据之前,
本身就需要先获取干扰信号的信息, 这样才能更好的解调下行共享信道的 数据。
因此, 如何很好地控制基站发送干扰信号信息的开销, 同时又不会影 响终端解调性能的提升, 目前仍然是一个待解决的问题。 基站如何发送干 扰信号信息的问题也有待解决。 发明内容
为解决现有存在的技术问题, 本发明实施例提供一种开销信息传输方 法, 基站、 终端和系统。
本发明实施例提供了一种开销信息传输方法, 该方法包括:
基站通过下行控制信道发送下行控制信息 DCI给终端, 所述 DCI中的 X个比特用于指示除所述终端之外的其他终端的 M套下行参考信息;
其中, 所述 X为正整数, 所述 M为小于所述终端的下行数据处理能力 参数所表示数值的正整数。
本发明实施例还提供了一种开销信息传输方法, 该方法包括: 终端从下行控制信道的下行控制信息 DCI中获取除所述终端之外的其 他终端的 N套下行参考信息;
其中, 所述 N为小于下行数据处理能力参数所表示数值的正整数; 所 述 N小于等于 M,所述 M为基站发的所述其他终端的下行参考信息的套数。
本发明实施例还提供了一种基站, 该基站包括: 发送模块, 配置为通 过下行控制信道发送下行控制信息 DCI给终端,所述 DCI中的 X个比特用 于指示除所述终端之外的其他终端的 M套下行参考信息;
其中, 所述 X为正整数, 所述 M为小于所述终端的下行数据处理能力 参数所表示数值的正整数。
本发明实施例还提供了一种终端, 该终端包括: 获取模块, 配置为从 下行控制信道的下行控制信息 DCI中获取除所述终端之外的其他终端的 N
套下行参考信息;
其中, 所述 N为小于下行数据处理能力参数所表示数值的正整数; 所 述 N小于等于 M,所述 M为基站发的所述其他终端的下行参考信息的套数。
本发明实施例还提供了一种开销信息传输系统, 该系统包括: 上文所 述的基站和终端。
本发明实施例提供的开销信息传输方法, 基站、 终端和系统, 基站收 到终端所发的下行数据处理能力参数后, 通过下行控制信道发送下行控制 信息 DCI给终端,所述 DCI中的 X个比特用于指示除所述终端之外的其他 终端的 M套下行参考信息; 其中, 所述 X为正整数, 所述 M为小于所述 终端的下行数据处理能力参数所表示数值的正整数。 釆用本发明实施例, 基站根据终端反馈的下行数据处理能力参数, 少量增加下行控制信道的开 销, 即可提高终端的解调性能。 由于终端反馈下行数据处理能力参数的次 数很少, 因此下行数据处理能力参数占用的上行开销非常少, 几乎可以忽 略不计。 附图说明
在附图 (其不一定是按比例绘制的) 中, 相似的附图标记可在不同的 视图中描述相似的部件。 具有不同字母后缀的相似附图标记可表示相似部 件的不同示例。 附图以示例而非限制的方式大体示出了本文中所讨论的各 个实施例。
图 1为本发明实施例所述开销信息传输方法实现流程示意图; 图 2为本发明实施例多个其他终端下行数据的干扰场景示意图; 图 3为本发明实施例所述基站的结构示意图;
图 4为本发明实施例所述终端的结构示意图;
图 5为本发明实施例所述开销信息传输系统的结构示意图。
具体实施方式
本发明的实施例中: 基站收到终端所发的下行数据处理能力参数后, 通过下行控制信道发送下行控制信息( DCI )给所述终端, 所述 DCI中的 X 个比特用于指示其他终端的 M套下行参考信息; 其中, 所述 X为正整数, 所述 M为小于所述终端的下行数据处理能力参数所表示数值的正整数。
图 1 为本发明实施例所述开销信息传输方法实现流程示意图, 如图 1 所示, 包括:
步骤 101 : 基站收到终端所发的下行数据处理能力参数;
步骤 102: 基站通过下行控制信道发送下行控制信息 DCI给终端, 所 述 DCI中的 X个比特,用于指示除所述终端之外的其他终端的 M套下行参 考信息;
其中, 所述 X为正整数, 所述 M为小于所述终端的下行数据处理能力 参数所表示数值的正整数。
其中, 所述其他终端为: 与上述终端数据占用的物理资源有重叠的终 端。
其中, 所述 X至少具有以下特征之一:
所述 X根据 M值的大小计算得出;
所述 X在不同的传输时间间隔 TTI中动态变化;
所述 X小于等于系统无线资源控制协议 RRC设定的值;
所述 X小于等于系统 RRC根据所述下行数据处理能力参数所设定的 值;
所述 X小于等于所述下行数据处理能力参数所表示的对应值。
其中, 所述下行数据处理能力参数至少具有以下特征之一:
所述下行数据处理能力参数表示为: 所述终端能处理的下行数据的最 大层数,
所述终端能处理的下行数据的最大层数大于等于终端类别 UE Category 参数所表示的终端能解调数据的最大层数;
所述下行数据处理能力参数表示为: 所述终端能处理的自由度数; 所述下行数据处理能力参数表示为: 终端的接收天线数。
其中, 所述下行数据处理能力参数的值为: 所述下行数据处理能力参 数所表示的数值。
其中, 所述下行数据处理能力参数的值为: 所述下行数据处理能力参 数所表示的数值减去 UE Categary参数所表示终端能解调最大层数后所得 的数值。
优选的, 该方法还包括:
所述基站向所述终端发送终端能力询问 UE Capability Enquiry消息之 后, 接收所述终端发送的下行数据处理能力参数。
其中, 所述 DCI包含: 表示所述基站所要发送的下行参考信息的套数 M的参数。
其中, 所述 DCI还包含: 所述其他终端下行参考信息更新指示参数。 其中, 所述其他终端的 M套下行参考信息中, 每套信息至少包括: 用 户的导频信息。
其中, 所述用户的导频信息至少包括: 下行参考信号端口号。
其中, 所述其他终端的 M套下行参考信息中, 当 U套信息属于同一个 其他小区服务的所述其他终端时, 其中至少一套下行参考信息的所述用户 的导频信息至少包括: 发送所述用户导频的小区的小区号 Cell lD信息, 所 述 U为小于等于 M的正整数;
所述其他小区为: 与所述终端所属小区不同的小区; 所述其他小区属 于所述基站、 或不属于所述基站。
优选的, 该方法还包括:
基站预先设置一个包含所述其他终端的下行参考信息参数的集合, 然 后从所述集合里选择一个子集作为所述其他终端的 M套下行参考信息。
优选的, 该方法还包括: 基站按顺序发送其他终端的 M套下行参考信 息。
优选的, 该方法还包括:
当 L个所述其他终端的服务小区包括本小区和其他小区时, 基站先发 送本小区的所述其他终端的下行参考信息, 再发送其他小区的所述其他终 端的下行参考信息;
其中, 所述 L为小于等于 M的正整数, 所述 L个其他终端为: 所述基 站所发的所述 M套下行参考信息所对应的终端。
优选的, 该方法还包括:
基站按照所述其他终端对所述终端干扰的强度, 顺序发送所述其他终 端的 M套下行参考信息。
本发明实施例还提供了一种开销信息传输方法, 该方法包括: 终端从下行控制信道的下行控制信息 DCI中获取除所述终端之外的其 他终端的 N套下行参考信息;
其中, 所述 N为小于下行数据处理能力参数所表示数值的正整数; 所 述 N小于等于 M,所述 M为基站发的所述其他终端的下行参考信息的套数。
其中, 所述其他终端为: 与上述终端数据占用的物理资源有重叠的终 端。
优选的, 该方法还包括:
终端根据获取的所述其他终端的下行参考信息, 以及从下行控制信道 中获取的数据调度信息, 对基站所发的数据进行解调。
其中, 所述下行数据处理能力参数至少具有以下特征之一:
所述下行数据处理能力参数表示为: 终端能处理的下行数据的最大层
数,
所述终端能处理的下行数据的最大层数大于等于终端类别 UE Category 参数所表示的终端能解调数据的最大层数;
所述下行数据处理能力参数表示为: 终端能处理的自由度数; 所述下行数据处理能力参数表示为: 终端的接收天线数。
其中, 所述下行数据处理能力参数的值为: 所述下行数据处理能力参 数所表示的数值。
其中, 所述下行数据处理能力参数的值为: 所述下行数据处理能力参 数所表示的数值减去 UE Categary参数所表示终端能解调最大层数后所得 的数值。
优选的, 该方法还包括:
所述终端在收到基站所发的终端能力询问 UE Capability Enquiry消息 之后, 向所述基站发送下行数据处理能力参数。
其中, 所述其他终端的 N套下行参考信息中, 每套信息至少包括: 用 户的导频信息。
其中, 所述用户的导频信息至少包括: 下行参考信号端口号。
优选的, 该方法还包括: 终端解调基站所发的数据时, 根据获取的所 述其他终端的下行参考信息, 进行干扰抑制处理。
优选的, 该方法还包括: 所述终端根据所述获取的其他终端的下行参 考信息, 釆用最小均方误差-干扰拒绝合并(MMSE-IRC ) 高级检测算法检 测基站所发的数据信号, 然后进行解码。
下面结合具体实施例对本发明进行详细描述。
正如背景技术中提到的, 终端获取其他干扰信号的相关信息之后, 釆 用高级接收算法可以抑制一定的干扰, 提升终端的解调性能。 这就需要基 站给终端发送干扰信号的相关信息, 基站发送干扰信号的相关信息会增加
下行开销信息, 特别是当干扰信号比较多时, 下行开销信息也会比较多, 这会影响下行传输的性能。
经研究得出, 终端对干扰信号有一定的抑制能力, 当干扰信号个数超 过终端的处理能力时, 获取更多的干扰信号信息也不能再提升终端的解调 性能了。
终端对下行数据处理能力表示为: 终端能处理的下行数据的最大层数。 这个最大层数与终端的接收天线数有关, 当终端的各接收天线间相关性不 高时, 这个最大层数一般就等于终端的接收天线数; 这个最大层数也与终 端能处理的自由度数有关, 一般地, 这个最大层数等于终端能处理的自由 度数。
终端, 即用户设备(UE ) 能处理的下行数据的最大层数大于等于终端 类别 (UE Category )参数所表示的终端能解调数据的最大层数。
终端向基站发送终端的下行数据处理能力参数。 优选的, 终端在接收 到基站发送的指示消息之后, 向基站发送下行数据处理能力参数; 优选的, 终端在接收到基站发送的终端能力询问( UE Capability Enquiry )消息之后, 向基站发送下行数据处理能力参数。
相应的, 基站接收终端发送的下行数据处理能力参数。 优选的, 基站 在向终端发送指示消息之后, 基站接收终端发送的下行数据处理能力参数; 优选的,基站在向终端发送终端能力询问( UECapabilityEnquiry )消息之后, 基站接收终端发送的下行数据处理能力参数。
基站获得终端下行数据处理能力参数, 就可以将那些下行数据干扰相 对比较强的其他终端 (也可以称为其他用户) 的信息发给所述终端, 而那 些下行数据干扰相对比较弱的其他用户的信息就可以不用发给所述终端, 这样就可以减少下行开销信息。 终端获得那些下行数据干扰相对比较强的 其他用户的信息, 就可以通过高级解调算法, 将这些干扰进行抑制处理,
提高解调性能。 如果终端获得了那些下行数据干扰相对比较弱的其他用户 的信息, 对解调性能也不会带来明显提升, 因此, 即使终端没有获得那些 下行数据干扰相对比较弱的其他用户的信息, 也不会降低高级解调算法的 效果。
这里提到的下行数据干扰相对比较强的其他终端, 是指所述基站或其 他基站发给其他终端的下行数据对所述终端解调数据产生的干扰相对比较 强的那些终端。 这里提到的下行数据干扰相对比较弱的其他终端, 是指所 述基站或其他基站发给其他终端的下行数据对所述终端解调数据产生的干 扰相对比较弱的那些终端。 所述下行数据产生干扰的其他终端本文也称之 为干扰终端或干扰用户。
所述其他终端的信息主要指: 基站发送的与其他终端有关的下行参考 信息。 比如终端专有参考信号端口号 ( UE- Specific reference signal antenna port ), 小区号 (Cell ID )等等。 LTE系统中, UE-Specific reference signal 有时也指 Demodulation reference signal (缩写为 DMRS )。
基站有了终端下行数据处理能力参数之后, 如何发送其他干扰终端的 信息也是一个需要解决的问题。 基站可以在下行控制信道的 DCI (也称之 为下行控制信令) 中发送其他干扰用户的信息, 这样可以方便终端进行接 收获取, 同时又可以方便控制 DCI的尺寸(size )大小。 基站发送其他干扰 用户信息的具体方式如下:
基站在下行控制信道发送所述终端的数据调度信息, 并在下行控制信 道的 DCI中发送与所述终端数据占用的物理资源有重叠的其他终端的 M套 下行参考信息, M为小于下行数据处理能力参数所表示数目的正整数。
其中, 所述发送所述终端的数据调度信息的下行控制信道, 与所述在 DCI中发送与所述终端数据占用的物理资源有重叠的其他终端的 M套下行 参考信息的下行控制信道, 处在相同的传输时间间隔 (TTI ) 或者不同的
TTI中。
基站不需要在每个 ΤΤΙ中发送所述的 DCI,也就是说,基站在某些 ΤΉ 中不发送所述的 DCI, 在另外某些 TTI中发送所述的 DCI。
设所述 DCI中的 M套下行参考信息的比特数为 X , X为正整数, 则 X 是根据 M值的大小计算得出, 也就是说, 计算 X大小的数学式子里包含有 参数 M。 也可以说, 所述 DCI的大小是根据 M值的大小计算得出。 另夕卜, X 的大小还可以与每套信息的大小有关。 每套信息的大小可以固定不变, 也可以緩 ¾_地变化, 而 M值变化可以比较快,在不同的 TTI中 M值可以不 同。 因此, 所述 X的大小在不同的 TTI中动态变化, 也即所述 DCI的大小 在不同的 TTI中可以相同也可以不同。
所述 X的大小也可以根据系统 RRC设定的值进行设定,并且小于等于 系统 RRC设定的值。 所述系统 RRC设定的值可以根据下行数据处理能力 参数进行设定。 所述 X大小可以在不同的 TTI中动态变化。
预先设定下行数据处理能力参数所表示的对应值, 所述 X大小可以小 于等于所述下行数据处理能力参数所表示的对应值。
其他用户的服务基站可以为本基站, 也可以为其他基站。 无线通信系 统中, 一般的基站包含 1个或多个小区 (或扇区)。
本文所述基站也可以指小区。 对于 LTE系统, 本文所述基站也可以指 LTE系统的小区。 其他用户的服务小区可以为本小区, 也可以为其他小区。
上文所述与所述终端数据占用的物理资源有重叠, 是指基站发送给所 述终端的下行数据与本基站或其他基站发送给其他终端的下行数据所占用 的物理资源有重叠现象。
其中, 所述物理资源是指无线物理资源, 是指数据在无线传输过程中 所处的时域和频域位置。对于 LTE系统,物理资源可以指资源粒子( esource Element, RE )。
所述重叠现象是指基站在某物理资源上给所述终端发了数据, 同时本 基站或其他基站在所述物理资源上给其他用户也发了数据。 在相同的物理 资源上给不同的用户发送的数据一般可能会存在干扰。
所述其他终端的个数为 L, L为小于等于 M的正整数。
当然, 除了所述的其他用户之外, 占用了相同的物理资源进行传输的 还可能有另外的用户的数据, 这些另外的用户的数据对所述终端造成的干 扰可能相对比较弱, 因此这些另外的用户没有被包含在所述其他用户中。
所述 DCI也可以包含: 表示所述基站所要发送的下行参考信息的套数 M的参数。
所述 DCI也可以包含: 其他终端下行参考信息更新指示参数。
所述其他终端的 M套下行参考信息, 每套信息包括但不限于: 用户的 导频信息。
所述用户的导频信息是指基站发送的与所述用户有关的下行参考信号 信息。 比如用于所述用户数据解调的 UE-specific Reference Signals 0
优选的, 所述用户的导频信息包括但不限于: 下行参考信号端口号。 优选的, 所述其他终端的 M套下行参考信息中, 当 U套信息属于同一 个其他小区服务的其他终端时, 其中至少一套下行参考信息的所述用户的 导频信息包括但不限于: 发送所述用户导频的小区的 Cell ID信息, U为小 于 M的正整数。 如果所述终端与某个其他终端属于同一个小区服务时, 则 该其他终端的导频信息可以不包括 小区的 Cell ID信息。
优选的, 基站预先设置一个包含其他终端的下行参考信息参数的集合, 然后从这个集合里选择一个子集作为其他终端的 M套下行参考信息, 在下 行控制信道的 DCI中发送。
优选的, 基站按照一定的顺序发送其他终端的 M套下行参考信息。 优选的, 当所述 L个其他终端的服务基站包括本基站和其他基站时,
基站先发送本基站的其他用户的信息, 然后再发送其他基站的其他用户的 信息。 所述 L个其他终端为: 所述基站发送的所述 M套下行参考信息所对 应的终端。
优选的, 当 L个其他终端的服务小区包括本小区和其他小区时, 基站 先发送本小区的其他用户的信息, 然后再发送其他小区的其他用户的信息。 所述 L个其他终端为所述基站发送了所述 M套下行参考信息的终端。
优选的, 所述服务基站和服务小区属于 LTE系统。
如果基站发送给所述终端的数据与本基站或其他基站发送给其他用户 的数据所占用的物理资源有重叠现象, 这样其他用户数据就可能对所述终 端需要解调的数据产生干扰。 在其他用户中, 有的用户数据产生的干扰相 对比较强, 而有的用户数据产生的干扰相对比较弱。 下行数据干扰相对比 较强的其他用户的信息对所述终端解调算法的干扰抑制效果更加重要。
优选的, 基站按照其他用户的信息对所述终端造成的干扰强度顺序发 送其他用户 (或称为其他终端) 的 M套下行参考信息。
优选的, 基站先发送对所述终端造成的干扰相对更强的其他用户的信 终端从下行控制信道获取数据调度信息, 并从下行控制信道的 DCI中 获取其他终端的 N套下行参考信息, N为小于下行数据处理能力参数所表 示数值的正整数。
N值可以小于等于 M值。
所述终端获取数据调度信息的下行控制信道, 与从 DCI中获取与所述 终端数据占用的物理资源有重叠的其他用户的 M套信息的下行控制信道, 处在相同的 TTI或者不同的 TTI中。
终端根据所述获取的信息, 解调基站发送给所述终端的数据。
所述其他终端的 N套下行参考信息, 每套信息包括但不限于: 用户的
导频信息。
优选的, 所述用户的导频信息包括但不限于: 下行参考信号端口号。 所述终端获取的所述其他终端的每套信息可以少于基站发送的所述其 他终端的每套信息。
优选的, 终端解调基站发送给终端的数据时, 根据所述获取的信息, 进行干扰抑制处理, 以提高终端解调数据的性能。
优选的, 终端根据所述获取的信息, 釆用 MMSE-IRC高级检测算法检 测基站发送给所述终端的数据信号, 然后送入解码模块进行解码。
终端根据所述获取的信息, 也可以釆用其他高级接收算法, 解调基站 发送给所述终端的数据信号。
下面结合一个具体应用场景对本发明实施例所述方法进行详细描述。 图 2是本发明实施例多个其他终端下行数据的干扰场景示意图。 图 2 中,基站 A包含有 3个小区: Al、 A2和 A3,基站 B包含有 3个小区: Bl、 B2和 B3。终端 UE1和 UE2的服务小区为 A1,终端 UE3的服务小区为 A2, 终端 UE4的服务小区为 A3; 终端 UE5的服务小区为 Bl,终端 UE6的服务 小区为 B2。
假设 UE1的接收天线数为 4, UE1能处理的下行数据的最大层数也为 4。 假设 UE1的终端类别 (UE Category ) 为 Category 4, 表示 UE1最大能 解调出 2层的数据。
假设这时基站 A给 UE1在某物理时频资源上发送单层的数据, 具体地 说就是, 基站 A的小区 A1给 UE1在某物理时频资源上发送单层的下行数 据。
同时, 假设基站 A的小区 A1给 UE2也在相同的物理时频资源上发送 单层的数据; 基站 A的小区 A2给 UE3也在相同的物理时频资源上发送单 层的数据; 基站 A的小区 A3给 UE4也在相同的物理时频资源上发送单层
的数据; 基站 B的小区 B1给 UE5也在相同的物理时频资源上发送单层的 数据; 基站 B的小区 B2给 UE6也在相同的物理时频资源上发送单层的数 据。这样, UE在解调基站 A给它发送的下行数据时, 同时受到 UE2、 UE3、 UE4、 UE5、 UE6的下行数据的干扰。
UE为了抑制干扰, 提高解调性能, UE1向基站 A发送 UE1的下行数 据处理能力参数 Q, 参数 Q表示 UE1能处理的下行数据的最大层数为 4。 参数 Q的值可以直接设为 4, 即 Q=4; 也可以设为下行数据处理能力参数 所表示的数值,减去 UE Categary参数所表示终端能解调最大层数之后的数 值, 即 Q=4-2=2; 也可以事先设定参数 Q与终端能处理的下行数据的最大 层数的对应关系, 然后 Q值就等于 UE1能处理的下行数据的最大层数为 4 所对应的值。
由于 UE1能处理的下行数据的最大层数为 4, 而基站 A给 UE1发的下 行数据为单层, 因此 UE1能处理的其他干扰数据层数最大为 3 ( 4-1=3 )。
假设 UE2、 UE3、 UE4、 UE5、 UE6的下行数据对 UE1 的干扰强度顺 序为: UE5、 UE2、 UE3、 UE4、 UE6。 基站接收到 UE1发送的下行数据处 理能力参数 Q之后, 基站在下行控制信道 DCI里发送 UE2、 UE5和 UE3 的共 3套下行参考信息。 显然 3小于等于 UE1能处理的下行数据的最大层 数 4。
假设基站 A的小区 A1分配给 UE2的下行数据解调参考信号( DM S ) 端口号为 API, 小区 A1的 Cell ID为 ID1; 基站 A的小区 A2分配给 UE3 的下行数据解调参考信号 ( DM S )端口号为 AP2, 小区 A2的 Cell ID为 ID2; 基站 B的小区 B1分配给 UE5的下行数据解调参考信号( DMRS )端 口号为 AP3, 小区 B1的 Cell ID为 ID3; 基站 A的小区 A1在下行控制信 道里可以按照干扰强度的顺序发送这 3套下行参考信息: ID3、 AP3、 API , ID2、 AP2, 也可以按照先本小区后其他小区的顺序发送这 3套下行参考信
息: AP1、 ID3、 AP3、 ID2、 AP2。 如上所示, 为了节省下行开销信息, 小 区 A1的 Cell ID, 即 ID1可以不发送, 当然为了基站发送和终端接收操作 的方便, 也可以发送。
基站 A的小区 A1在下行控制信道发送这 3套下行参考信息所占用的 比特大小与 3有关, 可以根据 3这个值计算出来。 这样基站 A可以预先分 配一定大小的物理时频资源用来发送这 3套下行参考信息。 基站 A的小区 A1也可以只发送 1套或 2套下行参考信息, 也可以在不同的 TTI中发送不 同套数的下行参考信息。
基站 A也可以根据终端 UE1反馈的下行数据处理能力参数 Q通过系统 RRC设定一个值 R, 则这 3套下行参考信息所占用的比特数要小于等于 R; 如果这 3套下行参考信息所占用的比特数大于 R的话,则基站 A的小区 A1 也可以只发送 1套或 2套下行参考信息。
相应的, 终端 UE1从小区 A1的下行控制信道里获取下行数据调度信 息, 并从下行控制信道里获取这 3套下行参考信息, 也可以只获取其中的 1 套或 2套下行参考信息。
终端获取的所述其他终端的每套信息可以少于基站发送的所述其他终 端的每套信息。
优选的, 终端解调基站发送给终端的数据时, 根据所述获取的信息, 进行干扰抑制处理, 以提高终端解调数据的性能。
优选的, 终端根据所述获取的信息, 釆用 MMSE-IRC高级检测算法检 测基站发送给所述终端的数据信号, 然后送入解码模块进行解码。
终端根据所述获取的信息, 也可以釆用其他高级接收算法, 解调基站 发送给所述终端的数据信号。
本发明实施例还提供了一种基站, 如图 3所示, 该基站 30包括: 发送 模块 301, 配置为通过下行控制信道发送 DCI给终端, 所述 DCI中的 X个
比特用于指示除所述终端之外的其他终端的 M套下行参考信息; 其中, 所述 X为正整数, 所述 M为小于所述终端的下行数据处理能力 参数所表示数值的正整数。
其中, 所述其他终端为: 与上述终端数据占用的物理资源有重叠的终 端。
其中, 所述 X至少具有以下特征之一:
所述 X根据 M值的大小计算得出;
所述 X在不同的传输时间间隔 TTI中动态变化;
所述 X小于等于系统无线资源控制协议 RRC设定的值;
所述 X小于等于系统 RRC根据所述下行数据处理能力参数所设定的 值;
所述 X小于等于所述下行数据处理能力参数所表示的对应值。
其中, 所述下行数据处理能力参数至少具有以下特征之一:
所述下行数据处理能力参数表示为: 所述终端能处理的下行数据的最 大层数,
所述终端能处理的下行数据的最大层数大于等于 UE Category参数所 表示的终端能解调数据的最大层数;
所述下行数据处理能力参数表示为: 所述终端能处理的自由度数; 所述下行数据处理能力参数表示为: 终端的接收天线数。
优选的, 所述基站还包括: 接收模块 302, 配置为基站向所述终端发送
UE Capability Enquiry消息之后, 接收所述终端发送的下行数据处理能力参 数。
优选的, 所述基站还包括: 设置模块 303, 配置为预先设置一个包含所 述其他终端的下行参考信息参数的集合, 然后从所述集合里选择一个子集 作为所述其他终端的 M套下行参考信息。
优选的, 所述发送模块 301, 配置为按顺序发送其他终端的 M套下行 参考信息。
优选的, 当 L个所述其他终端的服务小区包括本小区和其他小区时, 所述发送模块 301, 配置为先发送本小区的所述其他终端的下行参考信息, 再发送其他小区的所述其他终端的下行参考信息;
其中, 所述 L为小于等于 M的正整数, 所述 L个其他终端为: 所述基 站所发的所述 M套下行参考信息所对应的终端。
优选的, 所述发送模块 301, 配置为按照所述其他终端对所述终端干扰 的强度, 顺序发送所述其他终端的 M套下行参考信息。
本发明的实施例中, 所述发送模块 301、 接收模块 302和设置模块 303 可通过所述基站 30中的中央处理器(Central Processing Unit, CPU ), 数字 信号处理器 ( Digital Signal Processor, DSP )或可编程逻辑阵列 (Field - Programmable Gate Array, FPGA ) 实现。
本发明实施例还提供了一种终端, 如图 4所示, 该终端 40包括: 获取 模块 401, 配置为从下行控制信道的下行控制信息 DCI中获取除所述终端 之外的其他终端的 N套下行参考信息;
其中, 所述 N为小于下行数据处理能力参数所表示数值的正整数; 所 述 N小于等于 M,所述 M为基站发的所述其他终端的下行参考信息的套数。
其中, 所述其他终端为: 与上述终端数据占用的物理资源有重叠的终 端。
优选的, 所述终端还包括: 解调模块 402, 配置为根据获取模块获取的 所述其他终端的下行参考信息, 以及从下行控制信道中获取的数据调度信 息, 对基站所发的数据进行解调;
相应的, 所述获取模块 401,还配置为从下行控制信道中获取数据调度 信息。
优选的, 所述终端还包括: 发送模块 403, 配置为在所述终端收到基站 所发的终端能力询问 ( UE Capability Enquiry ) 消息之后, 向所述基站发送 下行数据处理能力参数。
优选的, 所述解调模块 402, 还配置为解调基站所发的数据时, 根据获 取的所述其他终端的下行参考信息, 进行干扰抑制处理。
优选的, 所述解调模块 402,还配置为根据所述获取的其他终端的下行 参考信息, 釆用最小均方误差-干扰拒绝合并(MMSE-IRC ) 高级检测算法 检测基站所发的数据信号, 然后进行解码。
本发明的实施例中, 所述获取模块 401、 解调模块 402和发送模块 403 可通过终端 40中的 CPU、 DSP或 FPGA实现。
本发明实施例还提供了一种开销信息传输系统, 如图 5 所示, 该系统 包括: 上文所述的基站 30和终端 40。
釆用本发明实施例, 基站根据终端反馈的下行数据处理能力参数, 少 量增加下行控制信道的开销, 即可提高终端的解调性能。 由于终端反馈下 行数据处理能力参数的次数很少, 因此下行数据处理能力参数占用的上行 开销非常少, 几乎可以忽略不计。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产品。 因此, 本发明可釆用硬件实施例、 软件实施例、 或结 合软件和硬件方面的实施例的形式。 而且, 本发明可釆用在一个或多个其 中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘 存储器和光学存储器等 )上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序 产品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程 图和 /或方框图中的每一流程和 /或方框、以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、
嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器, 使得 在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功 能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理 设备以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存 储器中的指令产生包括指令装置的制造品, 该指令装置实现在流程图一个 流程或多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备 上, 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机 实现的处理, 从而在计算机或其他可编程设备上执行的指令提供用于实现 在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功 能的步骤。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。
Claims
1、 一种开销信息传输方法, 该方法包括:
基站通过下行控制信道发送下行控制信息 DCI给终端, 所述 DCI中的 X个比特用于指示除所述终端之外的其他终端的 M套下行参考信息;
其中, 所述 X为正整数, 所述 M为小于所述终端的下行数据处理能力 参数所表示数值的正整数。
2、 根据权利要求 1所述的方法, 其中, 所述其他终端为: 与上述终端 数据占用的物理资源有重叠的终端。
3、根据权利要求 1所述的方法,其中,所述 X至少具有以下特征之一: 所述 X根据 M值的大小计算得出;
所述 X在不同的传输时间间隔 TTI中动态变化;
所述 X小于等于系统无线资源控制协议 RRC设定的值;
所述 X小于等于系统 RRC根据所述下行数据处理能力参数所设定的 值;
所述 X小于等于所述下行数据处理能力参数所表示的对应值。
4、 根据权利要求 1所述的方法, 其中, 所述下行数据处理能力参数至 少具有以下特征之一:
所述下行数据处理能力参数表示为: 所述终端能处理的下行数据的最 大层数,
所述终端能处理的下行数据的最大层数大于等于终端类别 UE Category 参数所表示的终端能解调数据的最大层数;
所述下行数据处理能力参数表示为: 所述终端能处理的自由度数; 所述下行数据处理能力参数表示为: 终端的接收天线数。
5、 根据权利要求 1所述的方法, 其中, 所述下行数据处理能力参数的 值为: 所述下行数据处理能力参数所表示的数值。
6、 根据权利要求 1所述的方法, 其中, 所述下行数据处理能力参数的 值为:所述下行数据处理能力参数所表示的数值减去 UE Categary参数所表 示的终端能解调的最大层数之后所得的数值。
7、 根据权利要求 1-6中任一项所述的方法, 其中, 该方法还包括: 所述基站向所述终端发送终端能力询问 UE Capability Enquiry消息之 后, 接收所述终端发送的下行数据处理能力参数。
8、 根据权利要求 1-6中任一项所述的方法, 其中, 所述 DCI包含: 表 示所述基站所要发送的下行参考信息的套数 M的参数。
9、 根据权利要求 8所述的方法, 其中, 所述 DCI还包含: 所述其他终 端下行参考信息更新指示参数。
10、根据权利要求 1-6中任一项所述的方法, 其中, 所述其他终端的 M 套下行参考信息中, 每套信息至少包括: 用户的导频信息。
11、 根据权利要求 10所述的方法, 其中, 所述用户的导频信息至少包 括: 下行参考信号端口号。
12、根据权利要求 1-6中任一项所述的方法, 其中, 所述其他终端的 M 套下行参考信息中, 当 U套信息属于同一个其他小区服务的所述其他终端 时, 其中至少一套下行参考信息的所述用户的导频信息至少包括: 发送所 述用户导频的小区的小区号 Cell ID信息, 所述 U为小于等于 M的正整数; 所述其他小区为: 与所述终端所属小区不同的小区。
13、 根据权利要求 1-6中任一项所述的方法, 其中, 该方法还包括: 所述基站预先设置一个包含所述其他终端的下行参考信息参数的集 合, 然后从所述集合里选择一个子集作为所述其他终端的 M套下行参考信 息。
14、 根据权利要求 1-6中任一项所述的方法, 其中, 该方法还包括: 所述基站按顺序发送其他终端的 M套下行参考信息。
15、 根据权利要求 1-6中任一项所述的方法, 其中, 该方法还包括: 当 L个所述其他终端的服务小区包括本小区和其他小区时, 所述基站 先发送本小区的所述其他终端的下行参考信息, 再发送其他小区的所述其 他终端的下行参考信息;
其中, 所述 L为小于等于 M的正整数, 所述 L个其他终端为: 所述基 站所发的所述 M套下行参考信息所对应的终端。
16、 根据权利要求 1-6中任一项所述的方法, 其中, 该方法还包括: 所述基站按照所述其他终端对所述终端干扰的强度, 顺序发送所述其 他终端的 M套下行参考信息。
17、 一种开销信息传输方法, 该方法包括:
终端从下行控制信道的下行控制信息 DCI中获取除所述终端之外的其 他终端的 N套下行参考信息;
其中, 所述 N为小于下行数据处理能力参数所表示数值的正整数; 所 述 N小于等于 M,所述 M为基站发的所述其他终端的下行参考信息的套数。
18、 根据权利要求 17所述的方法, 其中, 所述其他终端为: 与上述终 端数据占用的物理资源有重叠的终端。
19、 根据权利要求 17所述的方法, 其中, 该方法还包括: 信道中获取的数据调度信息, 对基站所发的数据进行解调。
20、 根据权利要求 17所述的方法, 其中, 所述下行数据处理能力参数 至少具有以下特征之一:
所述下行数据处理能力参数表示为: 终端能处理的下行数据的最大层 数,
所述终端能处理的下行数据的最大层数大于等于终端类别 UE Category 参数所表示的终端能解调数据的最大层数;
所述下行数据处理能力参数表示为: 终端能处理的自由度数; 所述下行数据处理能力参数表示为: 终端的接收天线数。
21、 根据权利要求 17所述的方法, 其中, 所述下行数据处理能力参数 的值为: 所述下行数据处理能力参数所表示的数值。
22、 根据权利要求 17所述的方法, 其中, 所述下行数据处理能力参数 的值为:所述下行数据处理能力参数所表示的数值减去 UE Categary参数所 表示终端能解调的最大层数之后所得的数值。
23、 根据权利要求 17-22中任一项所述的方法, 其中, 该方法还包括: 所述终端在收到基站所发的终端能力询问 UE Capability Enquiry消息 之后, 向所述基站发送下行数据处理能力参数。
24、根据权利要求 17-22中任一项所述的方法, 其中, 所述其他终端的 N套下行参考信息中, 每套信息至少包括: 用户的导频信息。
25、 根据权利要求 24所述的方法, 其中, 所述用户的导频信息至少包 括: 下行参考信号端口号。
26、 根据权利要求 16所述的方法, 其中, 该方法还包括:
所述终端解调基站所发的数据时, 根据获取的所述其他终端的下行参 考信息, 进行干扰抑制处理。
27、 根据权利要求 17-22中任一项所述的方法, 其中, 该方法还包括: 差-干扰拒绝合并 MMSE-IRC高级检测算法检测基站所发的数据信号,然后 进行解码。
28、 一种基站, 该基站包括: 发送模块, 配置为通过下行控制信道发 送下行控制信息 DCI给终端,所述 DCI中的 X个比特用于指示除所述终端 之外的其他终端的 M套下行参考信息;
其中, 所述 X为正整数, 所述 M为小于所述终端的下行数据处理能力
参数所表示数值的正整数。
29、 根据权利要求 28所述的基站, 其中, 所述其他终端为: 与上述终 端数据占用的物理资源有重叠的终端。
30、 根据权利要求 28所述的基站, 其中, 所述 X至少具有以下特征之 所述 X根据 M值的大小计算得出;
所述 X在不同的传输时间间隔 TTI中动态变化;
所述 X小于等于系统无线资源控制协议 RRC设定的值;
所述 X小于等于系统 RRC根据所述下行数据处理能力参数所设定的 值;
所述 X小于等于所述下行数据处理能力参数所表示的对应值。
31、 根据权利要求 28所述的基站, 其中, 所述下行数据处理能力参数 至少具有以下特征之一:
所述下行数据处理能力参数表示为: 所述终端能处理的下行数据的最 大层数,
所述终端能处理的下行数据的最大层数大于等于终端类别 UE Category 参数所表示的终端能解调数据的最大层数;
所述下行数据处理能力参数表示为: 所述终端能处理的自由度数; 所述下行数据处理能力参数表示为: 终端的接收天线数。
32、根据权利要求 28所述的基站, 其中, 所述基站还包括: 接收模块, 配置为基站向所述终端发送终端能力询问 UE Capability Enquiry消息之后, 接收所述终端发送的下行数据处理能力参数。
33、根据权利要求 28-32中任一项所述的基站,其中,所述基站还包括: 设置模块, 配置为预先设置一个包含所述其他终端的下行参考信息参数的 集合, 然后从所述集合里选择一个子集作为所述其他终端的 M套下行参考
信息。
34、 根据权利要求 28-32中任一项所述的基站, 其中, 所述发送模块, 配置为按顺序发送其他终端的 M套下行参考信息。
35、 根据权利要求 28-32中任一项所述的基站, 其中, 当 L个所述其 他终端的服务小区包括本小区和其他小区时, 所述发送模块, 配置为先发 送本小区的所述其他终端的下行参考信息, 再发送其他小区的所述其他终 端的下行参考信息;
其中, 所述 L为小于等于 M的正整数, 所述 L个其他终端为: 所述基 站所发的所述 M套下行参考信息所对应的终端。
36、 根据权利要求 28-32中任一项所述的基站, 其中, 所述发送模块, 配置为按照所述其他终端对所述终端干扰的强度, 顺序发送所述其他终端 的 M套下行参考信息。
37、 一种终端, 该终端包括: 获取模块, 配置为从下行控制信道的下 行控制信息 DCI中获取除所述终端之外的其他终端的 N套下行参考信息; 其中, 所述 N为小于下行数据处理能力参数所表示数值的正整数; 所 述 N小于等于 M,所述 M为基站发的所述其他终端的下行参考信息的套数。
38、 根据权利要求 37所述的终端, 其中, 所述其他终端为: 与上述终 端数据占用的物理资源有重叠的终端。
39、根据权利要求 37所述的终端, 其中, 所述终端还包括: 解调模块, 配置为根据所述获取模块获取的所述其他终端的下行参考信息, 以及从下 行控制信道中获取的数据调度信息, 对基站所发的数据进行解调;
相应的, 所述获取模块, 还配置为从下行控制信道中获取数据调度信 息。
40、 根据权利要求 37、 38或 39所述的终端, 其中, 所述终端还包括: 发送模块, 配置为在所述终端收到基站所发的终端能力询问 UE Capability
Enquiry消息之后, 向所述基站发送下行数据处理能力参数。
41、 根据权利要求 37、 38或 39所述的终端, 其中, 所述解调模块, 还配置为解调基站所发的数据时, 根据获取的所述其他终端的下行参考信 息, 进行干扰抑制处理。
42、 根据权利要求 37、 38或 39所述的终端, 其中, 所述解调模块, 还配置为根据所述获取的其他终端的下行参考信息, 釆用最小均方误差-干 扰拒绝合并 MMSE-IRC高级检测算法检测基站所发的数据信号, 然后进行 解码。
43、 一种开销信息传输系统, 该系统包括: 权利要求 28-36中任一项所 述的基站和权利要求 37-42中任一项所述的终端。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111800878A (zh) * | 2019-07-04 | 2020-10-20 | 维沃移动通信有限公司 | 发送方法、干扰处理方法、终端及网络侧设备 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3360259B1 (en) * | 2015-10-05 | 2019-09-18 | Telefonaktiebolaget LM Ericsson (PUBL) | Communication device, network node, method and computer program |
| WO2017166217A1 (zh) * | 2016-03-31 | 2017-10-05 | 华为技术有限公司 | 数据传输方法及装置 |
| CN107623541B (zh) * | 2016-07-13 | 2021-06-15 | 华为技术有限公司 | 一种下行控制信令指示的方法及相关设备 |
| WO2018058563A1 (zh) | 2016-09-30 | 2018-04-05 | 广东欧珀移动通信有限公司 | 传输下行控制信息的方法、网络侧设备和终端设备 |
| CN107919948B (zh) * | 2016-10-09 | 2020-03-20 | 中国移动通信有限公司研究院 | 一种下行接收反馈信息的传输控制方法、基站和终端 |
| US10390338B2 (en) | 2016-11-11 | 2019-08-20 | At&T Intellectual Property I, L.P. | Generic physical layer downlink control information design |
| CN115765946B (zh) * | 2017-09-08 | 2025-03-21 | 韦勒斯标准与技术协会公司 | 无线通信系统的数据发送方法和接收方法及其设备 |
| EP4002931A4 (en) * | 2019-07-16 | 2023-03-08 | Beijing Xiaomi Mobile Software Co., Ltd. | METHOD FOR DETERMINING APPROPRIATE PROCESSING CAPACITY FOR TARGET DATA, APPARATUS AND RECORDING MEDIA |
| TWI770884B (zh) | 2020-03-27 | 2022-07-11 | 聯發科技股份有限公司 | 支援5g新無線電未授權頻譜中基於參考訊號的測量的ue能力信令 |
| US11770696B2 (en) * | 2020-03-27 | 2023-09-26 | Mediatek Inc. | UE capability signaling for supporting reference signal based measurements in 5G new radio unlicensed spectrum (NR-U) |
| WO2022133855A1 (zh) * | 2020-12-24 | 2022-06-30 | 北京小米移动软件有限公司 | 解调性能确定方法和装置、解调性能接收方法和装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1643837A (zh) * | 2002-02-14 | 2005-07-20 | 松下电器产业株式会社 | 控制无线通信系统中发射数据分组的数据速率的方法、接收机及发射机 |
| CN102917457A (zh) * | 2011-08-05 | 2013-02-06 | 华为技术有限公司 | 传输增强调度信息的方法、基站和用户设备 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5131227B2 (ja) * | 2009-03-03 | 2013-01-30 | 富士通モバイルコミュニケーションズ株式会社 | 無線送信装置、無線受信装置および送信方法 |
| JP5152056B2 (ja) * | 2009-03-19 | 2013-02-27 | 富士通モバイルコミュニケーションズ株式会社 | 無線送信装置、無線受信装置および無線通信方法 |
| US9031008B2 (en) * | 2009-10-30 | 2015-05-12 | Samsung Electronics Co., Ltd. | Methods and apparatus for multi-user MIMO transmissions in wireless communication systems |
| US20110255483A1 (en) * | 2010-04-16 | 2011-10-20 | Research In Motion Limited | Signaling of Precoding Granularity for LTE and LTE-A |
| JP2013030582A (ja) * | 2011-07-28 | 2013-02-07 | Elpida Memory Inc | 半導体装置の製造方法 |
| WO2013125843A1 (ko) * | 2012-02-20 | 2013-08-29 | 엘지전자 주식회사 | 무선 통신 시스템에서 상향링크 신호 송신 방법 및 장치 |
| US9001798B2 (en) * | 2012-03-05 | 2015-04-07 | Samsung Electronics Co., Ltd. | HARQ-ACK signal transmission in response to detection of control channel type in case of multiple control channel types |
| JP2014007670A (ja) * | 2012-06-26 | 2014-01-16 | Ntt Docomo Inc | 無線通信システム、無線基地局装置、ユーザ端末及び通信制御方法 |
| EP2981141A4 (en) * | 2013-03-25 | 2016-12-14 | Kyocera Corp | BASIC STATION, PROCESSOR AND COMMUNICATION CONTROL PROCEDURE |
| WO2014189227A1 (ko) * | 2013-05-22 | 2014-11-27 | 엘지전자 주식회사 | Mtc 기기의 송수신 방법 |
| US10172121B2 (en) * | 2013-07-12 | 2019-01-01 | Sharp Kabushiki Kaisha | Terminal device, method, and integrated circuit |
| CN104349442B (zh) * | 2013-08-07 | 2019-07-12 | 中兴通讯股份有限公司 | 下行功率调整的通知方法及装置、获取方法及装置 |
-
2014
- 2014-02-18 CN CN201410055538.2A patent/CN104852778B/zh active Active
- 2014-07-31 US US15/112,278 patent/US20160337102A1/en not_active Abandoned
- 2014-07-31 WO PCT/CN2014/083415 patent/WO2015123968A1/zh not_active Ceased
- 2014-07-31 EP EP14883089.6A patent/EP3086495B1/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1643837A (zh) * | 2002-02-14 | 2005-07-20 | 松下电器产业株式会社 | 控制无线通信系统中发射数据分组的数据速率的方法、接收机及发射机 |
| CN102917457A (zh) * | 2011-08-05 | 2013-02-06 | 华为技术有限公司 | 传输增强调度信息的方法、基站和用户设备 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3086495A4 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111800878A (zh) * | 2019-07-04 | 2020-10-20 | 维沃移动通信有限公司 | 发送方法、干扰处理方法、终端及网络侧设备 |
| EP3996450A4 (en) * | 2019-07-04 | 2022-08-03 | Vivo Mobile Communication Co., Ltd. | TRANSMISSION METHOD, INTERFERENCE PROCESSING METHOD, TERMINAL AND NETWORK SIDE DEVICE |
| US12177877B2 (en) | 2019-07-04 | 2024-12-24 | Vivo Mobile Communication Co., Ltd. | Sending method, interference handling method, terminal, and network-side device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104852778B (zh) | 2020-03-13 |
| CN104852778A (zh) | 2015-08-19 |
| EP3086495B1 (en) | 2019-02-27 |
| EP3086495A4 (en) | 2016-12-21 |
| US20160337102A1 (en) | 2016-11-17 |
| EP3086495A1 (en) | 2016-10-26 |
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