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WO2016119424A1 - Procédé et appareil d'émission de signalisation - Google Patents

Procédé et appareil d'émission de signalisation Download PDF

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Publication number
WO2016119424A1
WO2016119424A1 PCT/CN2015/085796 CN2015085796W WO2016119424A1 WO 2016119424 A1 WO2016119424 A1 WO 2016119424A1 CN 2015085796 W CN2015085796 W CN 2015085796W WO 2016119424 A1 WO2016119424 A1 WO 2016119424A1
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Prior art keywords
node
type
state information
channel state
information
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Chinese (zh)
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肖华华
李儒岳
徐俊
鲁照华
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Definitions

  • the present invention relates to the field of communications, and in particular to a signaling transmission method and apparatus.
  • a first type of node for example, an evolved base station (eNB, eNode B) uses multiple antennas to transmit data
  • spatial multiplexing may be adopted to increase the data transmission rate, that is, the same type of node is used.
  • the time-frequency resources transmit different data at different antenna positions
  • the second type of nodes such as User Equipment (UE, User Equipment) also use multiple antennas to receive data.
  • UE User Equipment
  • resources of all antennas are allocated to the same user. The user occupies the physical resources allocated to the base station side in a single transmission interval.
  • This transmission mode is called single-user multiple input and multiple output (SU- MIMO (Single User Multiple-Input Multiple-Out-put); allocates spatial resources of different antennas to different users in the case of multiple users, and one user and at least one other user share physical resources allocated by the base station side in one transmission interval.
  • the sharing mode may be a space division multiple access mode or a space division multiplexing mode.
  • the transmission mode is called Multiple User Multiple-Input Multiple-Out-put (MU-MIMO), where the base station side
  • MU-MIMO Multiple User Multiple-Input Multiple-Out-put
  • the information reflecting the status of the downlink physical channel has three forms: Channel Quality Indication (CQI), Precoding Matrix Indicator (PMI, Pre). -coding Matrix Indicator), Rank Indicator (RI, Rank Indicator).
  • CQI Channel Quality Indication
  • PMI Precoding Matrix Indicator
  • RI Rank Indicator
  • CQI is an indicator to measure the quality of downlink channels.
  • CQI is represented by an integer value of 0-15, which respectively represents different CQI levels, and different CQIs correspond to respective modulation modes and coding rate, that is, Modulation and Coding Scheme (abbreviation MCS), divided into 16 cases, can be represented by 4-bit information.
  • MCS Modulation and Coding Scheme
  • the PMI refers to a physical downlink shared channel (PDSCH, Physical Downlink Shared Channel) that is sent to the UE according to the measured channel quality, according to the measured channel quality, according to the measured channel quality.
  • PDSCH Physical Downlink Shared Channel
  • the channel is precoded.
  • the feedback granularity of the PMI may be that the entire bandwidth is fed back to a PMI, or the PMI may be fed back according to a subband.
  • the RI is used to describe the number of spatially independent channels, corresponding to the rank of the channel response matrix.
  • the UE needs to feed back RI information, and other modes do not need to feed back RI information.
  • the rank of the channel matrix corresponds to the number of layers. Therefore, the UE feeds back the RI information to the base station, that is, the number of layers of the downlink transmission is fed back.
  • the transport layer is a concept of multiple antenna "layers" in LTE and LTE-A, indicating the number of effective independent channels in spatial multiplexing.
  • the total number of transport layers is the rank of the spatial channel (Rank).
  • Rank the number of layers used to transmit MIMO data is equal to the rank used by the eNB to transmit MIMO data;
  • MU-MIMO mode the number of layers used for one user transmission Less than the total number of layers of eNB data transmitted by the eNB, such as
  • the eNB needs to notify the UE of different control data in different transmission modes.
  • D2D communication is a technology for direct communication between terminals. Its main feature is that a device that is under network coverage and located at a close distance can find other devices wirelessly. And realize direct connection and communication between devices. D2D communication shares resources with cell users under the control of the cell network, so the spectrum utilization rate will be improved. In addition, it offers benefits such as reducing the burden on cellular networks, reducing battery power consumption in mobile terminals, increasing bit rates, increasing the robustness of network infrastructure failures, and supporting new small-scale peer-to-peer data services. .
  • a first type of node such as a base station side
  • a second type of node such as the user side
  • the number of antennas configured is generally not much, and the advantages of MIMO technology cannot be fully utilized.
  • a currently proposed method for uplink virtual MIMO is to jointly combine multiple second-type nodes to form a virtual MIMO channel in the same time-frequency resource, and jointly transmit data to a base station having multiple antennas.
  • the distance between the second type of nodes is sufficiently large, the channels of different second type nodes reaching the first type of nodes can be considered irrelevant, thus overcoming the volume and cost factors.
  • Virtual MIMO is divided into two types: cooperative virtual MIMO and non-cooperative virtual MIMO.
  • the main idea of cooperative virtual MIMO is that the data between the second type of nodes can share with each other and form a virtual multi-antenna system by sharing the respective antennas.
  • the existing uplink cooperative virtual MIMO technology mainly realizes the diversity function of MIMO; non-collaboration Virtual MIMO means that the data between the second type of nodes cannot be shared with each other, but each sends an independent data stream to the first type of node, and the first type of node selects several second type nodes according to the channel condition of the second type of node. Pairing, the paired second-class nodes send data to the base station on the same time-frequency.
  • the first-type nodes distinguish different second-type nodes by multiple antennas, which is similar to the downlink MU-MIMO, non-cooperative virtual MIMO mainly implements the multiplexing function of MIMO.
  • virtual MIMO technology is generally recommended to be applied to the uplink of the second type of node to send data to the first type of node, and the non-cooperative mode is adopted.
  • the downlink virtual MIMO can share the receiving antennas of the plurality of second type nodes to form a virtual second type node, which is the same as the SU-MIMO receiver because of the low inter-layer interference.
  • MU-MIMO can achieve better link performance and greater downlink throughput, which is of great benefit to improve the communication status of the hotspots in the second type of nodes.
  • downlink virtual MIMO is essentially a cooperative virtual MIMO.
  • the second type of nodes need to share the information received from the first type of nodes and perform joint demodulation and decoding. This data sharing is typically done over a wireless link such as D2D.
  • the second type of nodes for performing virtual MIMO for example, geographical distances are relatively close, usually they are in the same cluster, where clusters refer to second-class nodes that are geographically close.
  • Mu-MIMO does not require interaction data between the second type of nodes, a second type of node can be selected in different clusters for pairing to perform Mu-MIMO. Its performance may be better than virtual MIMO that is only paired in the same cluster.
  • the second type of nodes of the virtual second type node or other clusters are paired to form a Mu-MIMO data transmission scheme, and an effective solution has not been proposed.
  • an embodiment of the present invention provides a signaling transmission method and apparatus.
  • a signaling transmission method is provided, which is applied to a MIMO system, including: transmitting a channel metric between K second-type nodes in a virtual second-type node to a first-type node, where , K is a positive integer, and the channel metric is used to characterize the channel condition between the K second type nodes.
  • the channel metric includes at least one of: a load level of the interaction information between the K second type nodes, and first channel status information between the K second type nodes.
  • the first channel state information is fed back to the first type of node, and the integrated node includes at least one of the following: in the MIMO system, a second type of node other than the virtual second type node, A second type of node selected among the K second type nodes, a centralized processing device not connected to the MIMO system.
  • the specified function comprises at least one f: the CI i, j, and / or averaging CI i; selecting the maximum value of the CI i, j, and / or CI i; A minimum is found for the CI i,j and/or CI i .
  • the CI i,j includes at least one of the following information: first signal to noise ratio information, first capacity information, first throughput information, and first reception delay information.
  • the first signal to noise ratio information includes: a signal drying ratio corresponding to a channel of a second type node with an index of I i to a node of a second type index of I j , and a signal noise corresponding to the channel a ratio of a carrier-to-dry ratio corresponding to the channel;
  • the first capacity information includes: a channel capacity corresponding to a channel of the second type node with an index I i to a node of the second type index of the I j ;
  • the first throughput information includes: a second class node indexes I i I j index to a certain channel of the second node type corresponding to the channel;
  • the first reception delay information comprises: transmitting index information of the second class node I i The time interval to the second class node indexed as I j .
  • the method further includes: feeding back, to the first type of node, second channel state information of the virtual second type node to the first type of node, where the second channel state information is Forming channel state information corresponding to the overall channel H obtained by combining all channel combinations of the K nodes of the virtual node to the first class node, where H is a K ⁇ Nr row, a complex matrix of M ⁇ Nt columns, Nr is the number of antennas of one of the second type of nodes, Nt is the number of antennas of one of the first type of nodes, and M is the number of the first type of nodes in the MIMO system.
  • the second channel state information includes: the second channel state information in an ideal state, and second channel state information in a non-ideal state, wherein, according to the second channel state information, Being said K
  • the influence of the interaction information between the two types of nodes determines whether the second channel state information is in an ideal state.
  • the second channel state information in the ideal state includes at least one of: second signal to noise ratio information in the ideal state, second capacity information in the ideal state, Second throughput information in the ideal state, second reception delay information in the ideal state;
  • the second channel state information in the non-ideal state includes at least one of: in a non-ideal state The second signal to noise ratio information, the second capacity information in a non-ideal state, and the second throughput information in a non-ideal state.
  • a signaling transmission method applicable to a MIMO system, comprising: receiving a channel metric between K second-type nodes in a virtual second-type node, where K is positive An integer, the channel metric is used to characterize a channel condition between the K second type of nodes.
  • the channel metric includes at least one of: a load level of the interaction information between the K second type nodes, and first channel status information between the K second type nodes.
  • the specified function comprises at least one f: the CI i, j, and / or averaging CI i; selecting the maximum value of the CI i, j, and / or CI i; A minimum is found for the CI i,j and/or CI i .
  • the method further includes: receiving, by the virtual second type node, the second channel state information of the virtual second type node to the first type of node, where the second channel state
  • the information is channel state information corresponding to the overall channel H constituting all the channel combinations of the K nodes of the virtual node to the first class node, where H is a K ⁇ Nr row and a complex number of M ⁇ Nt columns a matrix, Nr is the number of antennas of one of the second type of nodes, Nt is the number of antennas of one of the first type of nodes, and M is the number of the first type of nodes in the MIMO system.
  • the second channel state information includes: the second channel state information in an ideal state, and second channel state information in a non-ideal state, wherein, according to the second channel state information, The second channel state information is determined to be in an ideal state by the influence of the interaction information between the K second type nodes.
  • the second channel state information in the ideal state includes at least one of the following: a second signal to noise ratio information in the ideal state, a second capacity information in an ideal state, and an ideal state.
  • the second channel state information in the non-ideal state includes at least one of: second signal to noise ratio information in the non-ideal state, The second capacity information in the non-ideal state and the second throughput information in the non-ideal state.
  • the method further includes: acquiring the first channel state information and the second channel state information; determining third channel state information according to the first channel state information and the second channel state information, where The third channel state information is channel state information of the virtual second type node to the first type of node; and the currently used MIMO mode and MIMO configuration information are determined according to the third state information.
  • determining the third channel state information according to the first channel state information and the second channel state information includes: when the second channel state information is the second channel state information in the non-ideal state, The second channel state information in the non-ideal state is used as the third channel state information.
  • determining the third channel state information according to the first channel state information and the second channel state information including: Determining, by the first channel state information, a delay amount between the virtual second type nodes; determining, according to the second channel state information, a transmission time between the virtual second type node and the first type of node; The delay amount, the transmission time, and the second channel state information determine the third channel state information.
  • determining, according to the first channel state information, a delay amount between the virtual second type of nodes including: when the first channel state information indicates a first delay amount, a delay amount as a delay amount between the virtual second type nodes; when the first channel state information indicates a first throughput, a quotient of a data packet size and the first channel state information is used as the virtual a delay amount between the second type of nodes, wherein the data packet size is a size of a predefined data packet of the first type of node and the second type of node; and when the first channel state information indicates the first
  • the capacity is obtained by dividing the data packet size by the bandwidth used for transmitting the data packet, and dividing the quotient by the first channel state information to obtain a delay amount between the virtual second type nodes; When the first channel state information is indicated as the first signal to noise ratio, the data packet size is divided by the bandwidth used for transmitting the data packet, and the quotient is divided by the capacity corresponding to the first channel state information.
  • the capacity corresponding to the first channel state information is determined by: substituting the first channel state information into a logarithm of the base 2 to obtain a function value, And determining, according to the correspondence between the first channel ratio and the capacity, a capacity corresponding to the first channel state information.
  • determining a transmission time between the virtual second type node and the first type of node according to the second channel state information including: when the second channel state information indicates a second delay And the second delay amount is used as the transmission time; when the second channel state information indicates the second throughput, the quotient of the data packet size and the second channel state information is used as the transmission Time, wherein the data packet size is a size of a predefined data packet of the first type of node and the second type of node; when the second channel state information indicates a second capacity, the data is Dividing the packet size by the bandwidth used to transmit the data packet, and dividing the quotient by the second channel state information to obtain the transmission time; when the second channel state information is the second SNR, Dividing the data packet size by the bandwidth used to transmit the data packet, and dividing the quotient by the capacity corresponding to the second channel state information to obtain the transmission time, where a capacity corresponding to the second channel state information: a function value obtained by substituting the second channel state
  • the third channel state information determining, according to the delay amount, the transmission time and the second channel state information, the third channel state information, including: when the second channel state information is in an ideal state
  • the method further includes: selecting a MIMO mode corresponding to a maximum parameter value indicated by the third channel state information as a currently used MIMO mode, and using a second type of node index corresponding to the MIMO mode as The MIMO configuration information.
  • the method further includes: receiving load level information between the K second type nodes; determining the currently used MIMO mode and the MIMO configuration information according to the load level information.
  • the method further includes: transmitting data to the virtual second type node that determines to use the MIMO mode, and sending the MIMO configuration information to the The virtual second type of node.
  • determining the currently used MIMO mode and the MIMO configuration information according to the load level information includes: selecting a virtual second type node with the smallest load level, and at the virtual second type node with the lowest load level When the load level is less than the preset threshold, the MIMO mode corresponding to determining the minimum load level is the currently used MIMO mode, and the virtual second type node index with the lowest load level is used as the MIMO configuration information.
  • the MIMO transmission mode includes at least one of: a transmission mode of a single second type node, a MIMO transmission mode in which at least one second type node transmits at the same time, and the second type of node does not share the received data. At least one second type of node transmits at the same time and the second type of node shares the MIMO transmission mode of the received data.
  • the first type of node includes at least one of the following: a macro base station, a micro base station, and a wireless access point device
  • the second type of node includes at least one of the following: a terminal, a relay device, and a pull Far device, wireless access point device.
  • a signaling transmission apparatus applicable to a MIMO system, comprising: a sending module, configured to send a channel metric between K second type nodes in a virtual second type node To a first type of node, where K is a positive integer, the channel metric is used to characterize channel conditions between the K second type of nodes.
  • the channel metric sent by the sending module includes at least one of the following: a load level of the interaction information between the K second type nodes, and a number between the K second type nodes One channel status information.
  • the information, CI i, j is the channel state information of the second type of node indexed I i in the virtual second type node to the second type node of the index I j
  • f is a predetermined function specified in advance, 1 ⁇ i ⁇ K, 1 ⁇ j ⁇ K, j ⁇ i.
  • the integrated node includes at least one of the following: in the MIMO system, a second type of node other than the virtual second type node, a second type of node selected from the K second type nodes, and a centralized processing device not connected to the MIMO system.
  • the specifying function f in the determining module includes at least one of: averaging the CI i, j and/or CI i ; and comparing the CI i, j and/or CI i finds the maximum value; the minimum value is determined for the CI i, j and/or CI i .
  • a signaling transmission apparatus applicable to a MIMO system, comprising: a first receiving module configured to receive channel metrics between K second type of nodes in a virtual second type of node A standard, wherein K is a positive integer, and the channel metric is used to characterize a channel condition between the K second type of nodes.
  • the channel metric received by the first receiving module includes at least one of the following: a load level of the interaction information between the K second type nodes, and between the K second type nodes First channel status information.
  • the specified function f applied in the first determining module includes at least one of: averaging the CI i, j and/or CI i ; for the CI i, j And / or CI i find the maximum value; find the minimum value for the CI i, j and / or CI i .
  • the device further includes: a second receiving module, configured to receive, by the virtual second type node, the second channel state information of the virtual second type node to the first type of node, where
  • the second channel state information is channel state information corresponding to the overall channel H formed by combining all channel combinations of the K nodes of the virtual node to the first class node, where H is a K ⁇ Nr row.
  • H is a K ⁇ Nr row.
  • Nr is the number of antennas of one of the nodes of the second type
  • Nt is the number of antennas of one node of the first type
  • M is a number of nodes of the first type in the MIMO system number.
  • the second channel state information received by the second receiving module includes: the second channel state information in an ideal state, and second channel state information in a non-ideal state, where Whether the second channel state information is affected by the interaction information between the K second type nodes is determined whether the second channel state information is in an ideal state.
  • the second channel state information in the ideal state received by the second receiving module includes at least one of the following: a second signal to noise ratio information in the ideal state, in an ideal state
  • the second capacity information, the second throughput information in an ideal state, the second reception delay information in an ideal state, and the second channel state information in the non-ideal state include at least one of: being in the non-ideal state
  • the device further includes: an acquiring module, configured to acquire the first channel state information and the second channel state information; and a second determining module, configured to be configured according to the first channel state information
  • the second channel state information is determined by the second channel state information, wherein the third channel state information is channel state information of the virtual second type node to the first type of node; and the third determining module is configured to be based on the third state information. Determine the currently used MIMO mode and MIMO configuration information.
  • the second determining module is configured to: when the second channel state information is the second channel state information in the non-ideal state, the second channel state information in the non-ideal state As the third channel state information.
  • the second determining module is configured to: when the second channel state information is the second channel state information in the ideal state, the first determining unit is configured to be configured according to the first channel The state information determines a delay amount between the virtual second type nodes; and the second determining unit is configured to determine, according to the second channel state information, a transmission time between the virtual second type node and the first type of node; And a third determining unit, configured to determine the third channel state information according to the delay amount, the transmission time, and the second channel state information.
  • the device further includes: a third receiving module, configured to receive load level information between the K second type nodes; and a fourth determining module, configured to determine, according to the load level information, the currently used MIMO mode and configuration information with MIMO.
  • the device further includes: a transmission module, configured to transmit data to the virtual second type node that determines to use the MIMO mode; and a sending module, configured to send the MIMO configuration information to the The virtual second type of node.
  • the fourth determining module includes: a selecting unit, configured to select a virtual second type node with a minimum load level; and a fourth determining unit, configured to be a virtual second class with the smallest load level
  • the MIMO mode corresponding to determining the minimum load level is the currently used MIMO mode, and the virtual second type node index with the lowest load level is used as the MIMO configuration information.
  • channel metrics between K nodes in a virtual second type node are adopted.
  • the technical solution sent to the first type of node solves the related art, in the second type of node having no virtual second type node or other cluster, and the second type of node is paired to form Mu-MIMO data transmission
  • the problem of the solution further provides a scheme for the terminal side to transmit the channel metric between the nodes to the base station side, thereby expanding the application range of the MIMO technology.
  • 1 is a schematic structural diagram of downlink transmission of a homogeneous network in the related art
  • FIG. 2 is a schematic diagram of a virtual MIMO formed by a plurality of second type nodes of the related art
  • FIG. 3 is a flowchart of a signaling transmission method according to an embodiment of the present invention.
  • FIG. 4 is a structural block diagram of a signaling transmission apparatus according to an embodiment of the present invention.
  • FIG. 5 is a block diagram showing still another structure of a signaling transmission apparatus according to an embodiment of the present invention.
  • FIG. 6 is still another flowchart of a signaling transmission method according to an embodiment of the present invention.
  • FIG. 7 is still another structural block diagram a of a signaling transmission apparatus according to an embodiment of the present invention.
  • FIG. 8 is still another structural block diagram b of a signaling transmission apparatus according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of two virtual nodes performing MU-MIMO according to a preferred embodiment of the present invention.
  • FIG. 10 is a schematic diagram showing the relationship between channel information between nodes of a virtual second type node according to a preferred embodiment of the present invention.
  • FIG. 11 is a schematic diagram of transmitting channel information to a node outside a virtual second type node according to a preferred embodiment of the present invention.
  • FIG. 12 is a schematic diagram of transmitting channel information to a second type of node in a virtual second type node according to a preferred embodiment of the present invention
  • FIG. 13 is a schematic diagram of interaction between a virtual second type node transmitting second channel state information to a transmitting network and a transmitting network transmitting MIMO configuration information to a second type of node, and information such as pilot and data, according to a preferred embodiment of the present invention.
  • FIG. 3 is a flowchart of a signaling transmission method according to an embodiment of the present invention, as shown in FIG. step:
  • Step S302 acquiring channel metrics between K second type nodes in the virtual second type node
  • Step S304 the channel metric is sent to the first type of node, where K is a positive integer, and the channel metric is used to represent the channel condition between the K second type nodes.
  • the technical solution of transmitting the channel metric between the K nodes in the virtual second type node (terminal side) to the first type node (base station side) is solved, and in the related art, there is no virtual second.
  • the second type of nodes of the class node or other clusters the second type of nodes are paired to form a Mu-MIMO data transmission scheme, and thus a scheme for the terminal side to transmit the channel metric between the nodes to the base station side is provided. Expanded the application range of MIMO technology.
  • the foregoing channel metric includes at least one of: a load level of the interaction information between the K second type nodes, and first channel state information between the K second type nodes, that is, by using the foregoing load level and the foregoing
  • the first channel state information is used to characterize channel conditions between the K second type of nodes.
  • the channel state information of the second type of node to the second type of node whose index is Ij , f is a predetermined function specified in advance, 1 ⁇ i ⁇ K, 1 ⁇ j ⁇ K, j ⁇ i.
  • the first channel state information is determined by: feeding back CI i to the first type node by using a second type of node indexed I i in the K second type nodes, where the CI i is used for the foregoing
  • the second type of node other than the virtual second type node is a second type node selected from the K second type nodes, and a centralized processing device not connected to the MIMO system.
  • the specified function f comprising at least one of the following: the above-described CI i, j, and / or averaging I CI; above CI i, j and / or I CI selecting the maximum value; the above-described CI i, j and / or CI i find the minimum.
  • the above CI i,j includes but is not limited to: first signal to noise ratio information, first capacity information, first throughput information, and first reception delay information.
  • the first information signal to noise ratio comprises: a second class node index I i I j to the index channel corresponds to a second channel node type drier than the corresponding channel
  • the first capacity information includes: a channel capacity corresponding to a channel of the second type node with an index I i to a node of the second type index of the I j
  • the first throughput information includes: a second class node indexes I i I j to the index channel a certain channel corresponding to the second type node
  • the first reception delay information comprises: transmitting information to the second type of index I i to node
  • the index is the time interval of the second class node of I j .
  • the following technical solution is further provided: feeding back the second channel state information of the virtual second type node to the first type node to the first type of node.
  • the second channel state information is channel state information corresponding to the overall channel H formed by combining all the channel combinations of the K nodes of the virtual node to the first class node, where H is a K ⁇ Nr row.
  • the complex matrix of the M ⁇ Nt column, Nr is the number of antennas of a second type of node
  • Nt is the number of antennas of the first type of nodes
  • M is the number of nodes of the first type in the MIMO system.
  • the second channel state information includes: the second channel state information in an ideal state, and second channel state information in a non-ideal state, wherein, according to whether the second channel state information is used by the K second type nodes
  • the influence of the inter-exchange information determines whether the second channel state information is in an ideal state, that is, the technical solution of the embodiment of the present invention considers a situation in a non-ideal state
  • the second channel state information in the ideal state includes at least the following One of: second signal-to-noise ratio information in the ideal state, second capacity information in the ideal state, second throughput information in the ideal state, and second reception delay information in the ideal state
  • the second channel state information in the non-ideal state includes at least one of: second signal to noise ratio information in a non-ideal state, second capacity information in a non-ideal state, and second in a non-ideal state Throughput information.
  • a signaling transmission device is also provided, which is applied to the second type of node of the MIMO system, and is used to implement the foregoing embodiments and preferred embodiments.
  • the modules involved are explained.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • 4 is a structural block diagram of a signaling transmission apparatus according to an embodiment of the present invention. As shown in FIG. 4, the method includes:
  • the obtaining module 40 is configured to obtain channel metrics between the K second type nodes in the virtual second type node;
  • the sending module 42 is connected to the obtaining module 40 and configured to send the channel metric to the first type of node, where K is a positive integer, and the channel metric is used to represent the channel condition between the K second type nodes.
  • the channel metric sent by the sending module 42 includes at least one of the following: a load level of the K second type inter-node interaction information, and a first channel state information between the K second type nodes.
  • the signaling transmission device further includes:
  • the determining module 44 is further configured to feed the CI i to the first type node by using the second type node of the K second type nodes indexed as I i
  • the second type of node for I i feeds the CI i to the synthesis node, wherein
  • the determination module 44 in the designated function f comprising at least one of: the above-described CI i, j, and / or averaging CI i; seeking the maximum of the above-described CI i, j, and / or CI i Value; find the minimum value for CI i, j and / or CI i above .
  • FIG. 6 is still another flowchart of a signaling transmission method according to an embodiment of the present invention. As shown in FIG. 6, the method includes:
  • Step S602 the first type of node receives the channel metric between the K second type nodes in the virtual second type node, where K is a positive integer, and the channel metric is used to represent the channel between the K second type nodes.
  • Step S604 the first type of node determines a channel condition between the K second type nodes according to the channel metric.
  • the first type of node (base station side) is used to receive the channel metric between the K nodes in the virtual second type node (terminal side), and the related technology has no virtual second type node.
  • the second type of nodes of other clusters the second type of nodes are paired to form a data transmission scheme of Mu-MIMO, and further provides a scheme for the terminal side to transmit channel metrics between nodes to the base station side, which expands The scope of application of MIMO technology.
  • the channel metric includes at least one of the following: a load level of the interaction information between the K second type nodes, and first channel status information between the K second type nodes.
  • the designated at least one function f comprising: the above-described CI i, j, and / or averaging CI i; above CI i, j, and / or CI i selecting the maximum value; the above-described CI i, j and / or CI i find the minimum.
  • the method further includes: receiving, by the virtual second type node, the second channel state information of the virtual second type node to the first type of node, wherein the second channel state information is configured to Channel state information corresponding to the overall channel H obtained by combining all the channel combinations of the K nodes of the second type node of the virtual node, wherein H is a K ⁇ Nr row, a complex matrix of M ⁇ Nt columns, and Nr is one of the above
  • H is a K ⁇ Nr row, a complex matrix of M ⁇ Nt columns
  • Nr is one of the above
  • Nt is the number of antennas of the first type of nodes
  • M is the number of the first type of nodes in the MIMO system.
  • the foregoing second channel state information includes: the second channel state information in an ideal state, and second channel state information in a non-ideal state, wherein, according to whether the second channel state information is the second The influence of the interaction information between the class nodes determines whether the second channel state information is in an ideal state, wherein the second channel state information in the ideal state includes at least one of the following: the second signal to noise ratio information in the ideal state, ideal The second capacity information in the state, the second throughput information in the ideal state, and the second reception delay information in the ideal state; the second channel state information in the non-ideal state includes at least one of the following: in the non-ideal state The second second signal to noise ratio information, the second capacity information in the non-ideal state, and the second throughput information in the non-ideal state.
  • a technical solution is provided in the embodiment of the present invention: acquiring the first channel state information and the second channel state information, and determining the third according to the first channel state information and the second channel state information.
  • Channel state information wherein the third channel state information is channel state information of the virtual second type node to the first type of node; and the currently used MIMO mode and MIMO configuration information are determined according to the third state information.
  • determining the third channel state information according to the first channel state information and the second channel state information may be implemented by: when the second channel state information is in a non-ideal state In the second channel state information, the second channel state information in the non-ideal state is used as the third channel state information.
  • determining the third channel state information according to the first channel state information and the second channel state information including: determining, according to the first channel state information, a delay amount between the virtual second type nodes; determining, according to the second channel state information, a transmission time between the virtual second type node and the first type node; and according to the delay amount, the transmission time and the second channel status The information determines the third channel state information described above.
  • determining, according to the first channel state information, the amount of delay between the virtual second type nodes may be implemented by: when the first channel state information indicates the first delay amount, using the first delay amount as a delay amount between the virtual second type nodes; when the first channel state information indicates the first throughput, the quotient of the data packet size and the first channel state information is used as the delay between the virtual second type nodes
  • the data packet size is a size of a predefined data packet of the first type node and the second type node; when the first channel state information indicates the first capacity, dividing the data packet size by the foregoing
  • the bandwidth used by the data packet is obtained by dividing the quotient by the first channel state information to obtain a delay amount between the virtual second type nodes; when the first channel state information indicates the first signal to noise ratio, the foregoing
  • the packet size is divided by the bandwidth used to transmit the data packet, and the quotient is divided by the capacity corresponding to the first channel state information.
  • the capacity corresponding to the first channel state information is determined by: substituting the first channel state information into a logarithm function of the base 2 to obtain a function value, according to The correspondence between the first channel ratio and the capacity determines a capacity corresponding to the first channel state information.
  • determining, according to the second channel state information, a transmission time between the virtual second type node and the first type of node may be implemented by: when the second channel state information indicates a second delay amount, The second delay amount is used as the transmission time; when the second channel state information is indicated as the second throughput, the quotient of the data packet size and the second channel state information is used as the transmission time, wherein the data packet size a size of a data packet predefined for the first type node and the second type node; when the second channel state information indicates the second capacity, dividing the data packet size by the bandwidth used for transmitting the data packet And dividing the quotient by the second channel state information to obtain the transmission time; when the second channel state information is the second SNR, dividing the data packet size by the bandwidth used for transmitting the data packet to obtain a quotient Dividing the quotient by the capacity corresponding to the second channel state information to obtain the foregoing transmission time, where Determining, by the following method, a capacity corresponding to the second channel state information
  • the foregoing method further includes: selecting a maximum corresponding to a parameter value indicated by the third channel state information.
  • the MIMO mode is used as the MIMO mode currently used, and the second type of node index corresponding to the MIMO mode described above is used as the MIMO configuration information.
  • a further improvement of the foregoing technical solution in the embodiment of the present invention is that the method further includes: receiving load level information between the K second type of nodes; determining, according to the load level information, the currently used MIMO mode and the MIMO configuration information, and After determining the currently used MIMO mode and the MIMO configuration information, the following technical solution may also be implemented: transmitting data to the virtual second type node determined to use the MIMO mode, and transmitting the MIMO configuration information to the virtual second type node. .
  • determining the currently used MIMO mode and the MIMO configuration information according to the load level information may be implemented by: selecting a virtual second type node with the lowest load level, and loading the virtual second type node with the lowest load level.
  • the MIMO mode corresponding to determining the minimum load level is the currently used MIMO mode, and the virtual second type node index with the minimum load level is used as the MIMO configuration information.
  • the foregoing MIMO transmission mode includes at least one of: a transmission mode of a single second type node, a MIMO transmission mode in which at least one second type node transmits at the same time, and the second type of node does not share received data, at least one second type The nodes transmit at the same time and the second type of node shares the MIMO transmission mode of the received data.
  • the first type of node includes at least one of the following: a macro base station, a micro base station, and a wireless access point device
  • the second type of node includes at least one of the following: a terminal, a medium
  • the device, the remote device, and the wireless access point device, and the number of the second type of nodes may be one or more, which is not limited by the embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a signaling transmission apparatus according to an embodiment of the present invention. As shown in FIG. 7, the method includes:
  • the first receiving module 70 is configured to receive a channel metric between the K second type nodes in the virtual second type node, where K is a positive integer, and the channel metric is used to represent the relationship between the K second type nodes Channel condition
  • the determining processing module 72 is configured to determine a channel condition between the K second type of nodes according to the channel metric described above.
  • the first type of node (base station side) is used to receive the channel metric of the channel metric between the K nodes in the virtual second type node (terminal side), and the related technology has no virtual number.
  • the second type of nodes of the second type of nodes or other clusters the second type of nodes are paired to form a Mu-MIMO data transmission scheme, and thus a scheme for transmitting the channel metrics between the nodes to the base station side by the terminal side is provided. Expanded the application range of MIMO technology.
  • the foregoing channel metric received by the first receiving module 70 includes at least one of the following: a load level of the K second type inter-node interaction information, and first channel status information between the K second type nodes.
  • the foregoing apparatus further includes:
  • the integrated node includes at least one of the following: in the MIMO system, a second type of node other than the virtual second type node, and a second type node selected from the K second type nodes, a centralized processing device connected to the MIMO system; the first receiving module 70 is further configured
  • the first determining module 74 specifies the application of the function f comprising at least one of the following: the above-described CI i, j, and / or averaging CI i; above CI i, j, and / or CI i seek Maximum value; find the minimum value for CI i, j and / or CI i above .
  • the foregoing apparatus further includes: a second receiving module 76, configured to receive, by the virtual second type node, the second channel state information of the virtual second type node to the first type of node, where
  • the two channel state information is channel state information corresponding to the overall channel H obtained by combining all the channel combinations of the K nodes of the virtual node to the first class node, where H is a K ⁇ Nr row and an M ⁇ Nt column.
  • H is a K ⁇ Nr row and an M ⁇ Nt column.
  • a complex matrix Nr is the number of antennas of a second type of node
  • Nt is the number of antennas of a first type of node
  • M is the number of nodes of the first type in the MIMO system.
  • the second channel state information received by the second receiving module 76 includes: the second channel state information in an ideal state, and second channel state information in a non-ideal state, wherein, according to whether the second channel state information is The influence of the interaction information between the K second type nodes determines whether the second channel state information is in an ideal state.
  • the second channel state information in the ideal state received by the second receiving module 76 includes at least one of the following: the second signal to noise ratio information in the ideal state, and the second capacity in the ideal state.
  • the information, the second throughput information in an ideal state, the second reception delay information in an ideal state, and the second channel state information in the non-ideal state include at least one of the following: a second letter in the non-ideal state
  • the noise ratio information, the second capacity information in the non-ideal state, and the second throughput information in the non-ideal state include at least one of the following: a second letter in the non-ideal state.
  • the foregoing apparatus further includes: an obtaining module 78 (the obtaining module 78 and the obtaining module 40 in FIG. 4 may be the same module, or may not be the same module, and the symbols 78 and 40 are only used in the description to describe the solution.
  • the first channel state information and the second channel state information are set to be obtained; the second determining module 80 is configured to determine third channel state information according to the first channel state information and the second channel state information, where The third channel state information is the channel state information of the virtual second type node to the first type of node; the third determining module 82 is configured to determine the currently used MIMO mode and the MIMO configuration information according to the third state information, where the second The determining module 80 is configured to: when the second channel state information is the second channel state information in the non-ideal state, the second channel state information in the non-ideal state is used as the third channel state information; the second determining module 80, configured to include when the second channel state information is the second channel state information in an ideal state.
  • the first determining unit 800 is configured to determine, according to the first channel state information, a delay amount between the virtual second type nodes, and the second determining unit 802 is configured to determine, according to the second channel state information, the virtual second type node to The transmission time between the first type of nodes; the third determining unit 804 is configured to determine the third channel state information according to the delay amount, the transmission time, and the second channel state information.
  • the foregoing apparatus further includes: a third receiving module 84 configured to receive load level information between the K second type of nodes; and a fourth determining module 86 configured to determine the currently used MIMO according to the load level information
  • the apparatus further includes: a transmission module 88 configured to transmit data to the virtual second type node that determines to use the MIMO mode; and the sending module 90 (
  • the sending may be the same module as the sending module 42 in FIG. 4, or may not be the same module, and the numbers 90 and 42. It is only clear that the scheme is described in the specification, and is set to transmit the above MIMO configuration information to the above-mentioned virtual second type node.
  • the fourth determining module 86 includes: a selecting unit 860 configured to select a virtual second type node with a minimum load level; and a fourth determining unit 862 configured to be a load level of the virtual second type node having the smallest load level
  • the MIMO mode corresponding to the minimum load level is determined to be the currently used MIMO mode, and the virtual second type node index with the minimum load level is used as the MIMO configuration information.
  • connection relationship of each module or each unit in FIG. 8 is only an example, and is not used to define the structure of the signaling transmission apparatus in the embodiment of the present invention.
  • the transmitting network includes M first-class nodes BS 1 , . . . , BS M
  • the receiving network includes N second-class nodes UE 1 , UE 2 , . . . , UE N
  • M and N are positive integers greater than or equal to 1
  • the channels of all M first-class nodes BS 1 , . . . , BS M to the ith second-type node are H i , where H i is the Nr row.
  • the complex matrix of the M ⁇ Nt column, i 1, . .
  • the first type of nodes include, but are not limited to, various wireless communication devices such as a macro base station, a micro base station, and a wireless access point; and the second type of nodes include, but are not limited to, a data card, a mobile phone, and a notebook computer.
  • various computers such as personal computers, tablets, personal digital assistants, Bluetooth, and various wireless communication devices such as relays, remote devices, and wireless access points.
  • a wireless system there is one transmitting network having at least one base station, and at least one cluster under the base station, and each cluster has a plurality of second type nodes, such as a relay, a wireless access point, a small base station, or a home.
  • Equipment such as base stations, mobile phones, data cards, notebooks, etc.
  • the second type of node is simply referred to as a node.
  • Figure 3 There are 2 clusters in a cell, and there are 4 nodes in each cluster.
  • the users in the first cluster are labeled as nodes 1 to 4; the users in the second cluster are labeled as nodes 5 to 8.
  • the nodes in each cluster are relatively close to each other.
  • the distance between different clusters is relatively far from each other.
  • Nodes within a cluster can communicate via wireless Backhual to form virtual MIMO.
  • the nodes constituting the plurality of virtual MIMOs together form a virtual second type node, and the received data information and channel information are shared between them to implement joint demodulation decoding. They are similar to SU-MIMO under the ideal Backhual hypothesis. Under the Backhual, there are some performance losses.
  • a downlink virtual MIMO system a downlink virtual receiving terminal formed by a plurality of terminals can obtain higher diversity or multiplexing gain because it has more receiving antennas. As shown in Figure 10, it is assumed that each node has only one receiving antenna.
  • the base station can only use one layer of transmission for each terminal, and the virtual second type nodes formed by nodes 1 to 4 have 4 antennas can be transmitted in up to 4 layers, and the multiplexing gain is significantly improved.
  • MU-MIMO since MU-MIMO requires that the equivalent channels between users must be strictly orthogonal to ensure that there is no interference between users, it is often difficult to do so in practice, so the performance of MU-MIMO will be large. Discounted, while using downlink virtual MIMO, there is no inter-user interference, performance is better than MU-MIMO.
  • the present invention shares the data received on the respective antennas in the downlink virtual MIMO, and the transmission, reception, and demodulation of the data need to rely on signaling implementation, and the following specific letters Let the transmission scenario be explained.
  • a preferred embodiment of the present invention describes a flow of information interaction of a virtual second type of node to the transmitting base station in order to feed back the first channel state information and the second channel state information.
  • FIG 3 there are two clusters, wherein the signaling interaction flow of each cluster is similar, without loss of generality. Here, only the signaling transmission process of the virtual second-class node in one cluster is described.
  • the number of nodes of the second type of nodes of the virtual second type node in the embodiment is set to 4, and the number of nodes of the first type is set to 2, but the method of the present invention can be applied to The case where the second type of node is larger than 1 node.
  • the number of nodes in the first type is greater than or equal to one.
  • the preferred embodiment illustrates a process in which a virtual second type of node feeds back a load level.
  • processing F1, F2, F3, and F4 to obtain a load level F corresponding to the virtual second type node includes, but is not limited to, taking the minimum value of F1, F2, F3, and F4 as F, or taking F1.
  • the maximum value of F2, F3, and F4 is F, or the average value of F1, F2, F3, and F4 is F.
  • the base station compares the load levels F of a plurality of different virtual second type nodes.
  • the virtual second type node with the lowest load level is selected. If the load level of the virtual second type node is less than the preset threshold, the virtual second type node is selected for virtual MIMO transmission, and the corresponding node 1 ⁇
  • the user index of node 4 is MIMO configured and notified to the virtual second type of node. Otherwise, a single second type node or a plurality of second type nodes are selected for Mu-MIMO transmission.
  • the preferred embodiment illustrates a process in which a virtual second type of node feeds back a load level.
  • processing F1, F2, F3, and F4 to obtain a load level F corresponding to the virtual second type node includes, but is not limited to, taking the minimum value of F1, F2, F3, and F4 as F, or taking F1.
  • the maximum value of F2, F3, and F4 is F, or the average value of F1, F2, F3, and F4 is F, and the integrated node transmits the load level F to the base station.
  • the base station receives the load level F corresponding to the plurality of virtual second type nodes, and the base station compares the load levels F of the plurality of different virtual second type nodes.
  • the virtual second type node with the lowest load level is selected. If the load level of the virtual second type node is less than the preset threshold, the virtual second type node is selected for virtual MIMO transmission, and the corresponding node 1 ⁇
  • the user index of node 4 is MIMO configured and notified to the virtual second type of node. Otherwise, a single second type node or a plurality of second type nodes are selected for Mu-MIMO transmission.
  • the preferred embodiment illustrates a process in which a virtual second type of node feeds back a load level.
  • node 1 As shown in FIG. 9, in a cluster in a cell, there are four second-type nodes, which are node 1, node 2, node 3, and node 4, respectively, to form a virtual second-class node.
  • the node i sends the load level Fi when the node i communicates with other nodes to the first node 1.
  • the node 1 is used as an integrated node, and the processing methods of other nodes as integrated nodes are similar, and are not repeated here.
  • the processing includes, but is not limited to, the minimum value of F1, F2, F3, and F4 is F. Or, the maximum value of F1, F2, F3, and F4 is F, or the average value of F1, F2, F3, and F4 is F, and the integrated node transmits the load level F to the base station.
  • the base station receives the load level F corresponding to the plurality of virtual second type nodes, and the base station compares the load levels F of the plurality of different virtual second type nodes.
  • the virtual second type node with the lowest load level is selected. If the load level of the virtual second type node is less than the preset threshold, the virtual second type node is selected for virtual MIMO transmission, and the corresponding node 1 ⁇
  • the user index of node 4 is MIMO configured and notified to the virtual second type of node. Otherwise, a single second type node or a plurality of second type nodes are selected for Mu-MIMO transmission.
  • This embodiment describes a process in which a virtual second type node feeds back first channel state information.
  • each of the nodes 1 to 4 constituting the virtual second type node has a channel information C ij , and the channel information includes but is not limited to the first signal to noise ratio information, the first capacity information, First throughput information, first reception delay information.
  • the method of obtaining the channel information C ij includes, but is not limited to, the node j transmits a data packet to the node i, the node i receives the data packet, and measures the channel information C ij .
  • the processed CI is used as the first channel state information of the virtual second type node.
  • This embodiment describes a process in which a virtual second type node feeds back first channel state information.
  • each of the nodes 1 to 4 constituting the virtual second type node has a channel information C ij , and the channel information includes but is not limited to the first signal to noise ratio information, the first capacity information, First throughput information, first reception delay information.
  • the method of obtaining the channel information C ij includes, but is not limited to, the node j transmits a data packet to the node i, the node i receives the data packet, and measures the channel information C ij .
  • the processed CI is used as the first channel state information of the virtual second type node.
  • the synthesizing node sends the CI to the base station, and the base station receives the CI as the first channel state information of the virtual second type node.
  • the preferred embodiment illustrates a process in which a virtual second type of node feeds back first channel state information.
  • each of the nodes 1 to 4 constituting the virtual second type node has a channel information C ij , and the channel information includes but is not limited to the first signal to noise ratio information, the first capacity information, First throughput information, first reception delay information.
  • the base station receives the CI and uses it as the channel state information of the virtual second type of node.
  • the above process f includes, but is not limited to, taking a maximum value, a minimum value, or an average value for CI i , CI i .
  • the preferred embodiment illustrates a process in which a virtual second type of node feeds back first channel state information.
  • each of the nodes 1 to 4 constituting the virtual second type node has a channel information C ij , and the channel information includes but is not limited to the first signal to noise ratio information, the first capacity information, First throughput information, first reception delay information.
  • the above process f includes, but is not limited to, taking the maximum value, the minimum value, or the average value for C ij , CI i .
  • the preferred embodiment illustrates a process in which a virtual second type of node feeds back second channel state information, and the second type of channel state information is non-ideal second type channel state information.
  • Second non-ideal channel state information including the second non-ideal signal to noise ratio Information, second non-ideal capacity information, and second non-ideal throughput information.
  • the base station And transmitting the second non-ideal channel state information to the base station, and after receiving the information, the base station selects a virtual second type node with the second non-ideal channel state information to be compared with the second type node of the other single second type node, if The second type of node corresponding to the virtual node is large, and the MIMO mode is determined to be virtual MIMO, and the node index corresponding to the virtual second type node with the second non-ideal channel state information is the MIMO configuration.
  • the preferred embodiment illustrates a process in which a virtual second type node feeds back second channel state information, and the second channel state information is second ideal channel state information.
  • the second ideal channel state information is calculated without considering the transmission time delay between nodes 1 to 4 and various influencing factors encountered in the transmission, and the second channel state information includes the second ideal signal to noise ratio information. And second ideal capacity information, second ideal throughput information, and second ideal delay amount.
  • the base station After receiving the information, the base station according to the first channel state letter And the second channel state information determines the third channel state information, and the virtual second type node or the second type node that selects the third channel state information is determined to determine the node index corresponding to the MIMO mode virtual second type node is a MIMO configuration.
  • the preferred embodiment illustrates a process in which the first type of node determines the amount of delay D based on the first channel state information.
  • the first channel state information CI received by the base station is the first delay amount, and then the base station determines that the delay amount is a value corresponding to CI.
  • the preferred embodiment illustrates a process in which the first type of node determines the amount of delay D based on the first channel state information.
  • the preferred embodiment illustrates a process in which the first type of node determines the amount of delay D based on the first channel state information.
  • the first channel state information CI received by the base station is the first capacity, then the base station needs to acquire the size P1 of the data packet, and the bandwidth W used to transmit the packet.
  • the preferred embodiment illustrates a process in which the first type of node determines the amount of delay D based on the first channel state information.
  • the first channel state information CI received by the base station is a first signal to noise ratio
  • the signal to noise ratio may include a signal to noise ratio, a signal dry ratio, a load drying ratio, and the base station needs to acquire a packet size P1, and a packet used to transmit the packet.
  • the size of the bandwidth W, P1 and W are predefined values of the base station and the second type of node, for example, P1 megabits/second, and W is megabytes. This value may be that the base station and the second type of node communicate with each other, or may be Standardized definition.
  • the base station needs to calculate the capacity corresponding to the signal-to-noise ratio, f1 (CI), and f1 (A) is a logarithmic function that finds 2 as the base for A, and can also directly obtain the corresponding capacity according to the CI difference table.
  • the preferred embodiment illustrates the process by which the first type of node determines the transmission time T based on the second ideal channel state information.
  • the second channel state information CSI received by the base station is the second ideal delay amount, and then the base station determines that the delay amount is a value corresponding to the CSI.
  • the preferred embodiment illustrates the process by which the first type of node determines the transmission time T based on the second ideal channel state information.
  • the preferred embodiment illustrates the process by which the first type of node determines the transmission time T based on the second ideal channel state information.
  • the second ideal channel state information CSI received by the base station is the second ideal capacity, then the base station needs to acquire the size P1 of the data packet and the bandwidth W used to transmit the packet, and P1 and W are predefined for the base station and the second type of node.
  • the preferred embodiment illustrates the process by which the first type of node determines the transmission time T based on the second ideal channel state information.
  • the first ideal channel state information CSI received by the base station is a second ideal signal to noise ratio
  • the signal to noise ratio may include a signal to noise ratio, a signal drying ratio, a load drying ratio, and the base station needs to acquire a packet size P1, and transmit the packet.
  • the bandwidth W used, P1 and W are predefined values of the base station and the second type of node, for example, P1 megabits/second, and W is megabytes. This value may be a communication agreement between the base station and the second type of node. Can be standardized definition.
  • the base station needs to calculate the capacity corresponding to the signal-to-noise ratio, f1 (CI), and f1 (A) is a logarithmic function that finds 2 as the base for A, and can also directly obtain the corresponding capacity according to the CI difference table.
  • the preferred embodiment illustrates a process in which the first type of node determines third channel information based on the second ideal channel state information, the transmission time T, and the delay amount D.
  • the base station receives the first channel state information, calculates the delay amount D by using the first channel state information, the base station receives the second channel state information, and calculates the transmission time T by using the first channel state information.
  • the preferred embodiment illustrates a process in which the first type of node determines third channel information based on the second ideal channel state information, the transmission time T, and the delay amount D.
  • the base station receives the first channel state information, calculates the delay amount D by using the first channel state information, and the base station receives the second channel. Status information, and the transmission time T is calculated using the first channel state information.
  • the preferred embodiment illustrates a process in which a first type of node determines MIMO mode and MIMO configuration information from the third channel state information and transmits data according to the determined MIMO mode and transmits MIMO configuration information to the second type of node.
  • the base station receives the first channel state information, calculates the delay amount D by using the first channel state information, the base station receives the second channel state information, and calculates the transmission time T by using the first channel state information.
  • the third channel state information of the virtual second type node is calculated according to the received second channel state information and the delay amount D, the transmission time T.
  • the third channel state information received by the base station is channel state information fed back by a single second type of node, which is the same as the existing technical standards such as LTE.
  • the base station compares the size of the third channel state information, and selects the second type node or the virtual second type node with the third channel state information as its MIMO mode. If the MIMO mode virtualizes the second type node, the corresponding composition is also required.
  • the index of the second type of node of the virtual second type node is determined as MIMO configuration information and sent to the second type of node. The data is transmitted using the determined MIMO mode.
  • the second type of node performs demodulation decoding according to the received MIMO configuration information and the received data information. If it is virtual MIMO, joint demodulation decoding is required. Otherwise, only a single second type of node is required to demodulate and decode.
  • channel capacity herein may also be other technical indicators, such as signal to noise ratio, channel quality, signal to interference and noise ratio, bit error rate, block error rate, and frame error rate.
  • a preferred embodiment of the present invention provides a multiplex-multi-output system signaling transmission apparatus, which is disposed on a receiving network side (ie, a second type of node side), and includes:
  • a first channel state information determining unit (corresponding to the determining module 44 of the foregoing embodiment) configured to determine first channel state information of the other second type of node to the second type of node;
  • a second channel state information determining unit (corresponding to the first determining module 44 of the foregoing embodiment) configured to determine second channel state information of the other second type of node to the second type of node;
  • the sending unit (corresponding to the sending module 42 of the foregoing embodiment) is configured to feed back the first channel state information and/or the second channel state information determined by the determining unit to the integrated node or the first type node;
  • the preferred embodiment of the present invention further provides a multi-input and multi-output system signaling transmission apparatus, which is disposed on a transmission network (ie, a first type of node), and includes:
  • the receiving unit (corresponding to the first receiving module 70 and/or the second receiving module 72 in the foregoing embodiment) is configured to receive first channel state information and second channel state information of the network;
  • the third channel state information determining unit (corresponding to the second receiving module 80 in the foregoing embodiment) is configured to determine third state information according to the first channel state information and the second channel state information, where the third non-ideal channel state is included An information determining unit and a third ideal channel state information determining unit, the third non-ideal channel state information determining unit configured to determine third channel state information according to the second non-ideal channel state information, the third ideal channel state determining unit
  • the third channel state information is determined to be determined according to the first channel state information and the second ideal channel state information. It includes a delay amount determining unit and a transmission time determining unit, and a third channel state information determining unit.
  • the delay determining unit is configured to determine, according to the first channel state information, a delay amount between the second type of nodes in the virtual second type node; the transmission time determining unit is configured to determine the virtual second type node according to the second channel state information CSI The transmission time between the first type of nodes; the third channel state information determining unit is configured to determine the third channel state information according to the delay and transmission time and the second ideal channel state information.
  • a determining unit configured to determine MIMO mode and MIMO configuration information according to the third channel state information; and an indicating unit configured to determine MIMO channel configuration information of the virtual second type node.
  • the transmission unit (corresponding to the transmission module 90 in the above embodiment), the user transmits the measurement data to the receiving network according to the MIMO mode and the MIMO configuration information.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • the embodiments of the present invention achieve the following technical effects: in the related art, in the second type of nodes in which there is no virtual second type node or other clusters, the second type of nodes are paired to form Mu-MIMO data.
  • the problem of the transmission scheme further provides a scheme for the terminal side to transmit the channel metric between the nodes to the base station side, thereby expanding the application range of the MIMO technology.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • a technical solution for transmitting channel metrics between K nodes in a virtual second type node (terminal side) to a first type of node (base station side) is adopted, and the related art is still solved.
  • the second type of nodes without virtual second type nodes or other clusters the second type of nodes are paired to form a Mu-MIMO data transmission scheme, and thus a terminal side is provided to transmit channel metrics between nodes to the base station.
  • the side scheme expands the application range of MIMO technology.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil d'émission de signalisation. Le procédé comprend les étapes consistant : à envoyer des mesures de canal parmi K nœuds de second type dans des nœuds de second type virtuels à des nœuds de premier type, K étant un nombre entier positif, et les mesures du canal sont utilisés pour caractériser les conditions de canal parmi les K nœuds de second type. Au moyen de la solution technique fournie par la présente invention, le problème d'une solution de transmission de données dans le domaine associé à savoir que les nœuds de second type sont appariés afin de former Mu-MIMO dans les nœuds de second type sans virtualisation ou de nœuds du second type dans d'autres grappes est résolu, et ensuite une solution qu'une pluralité de nœuds de second type envoient des mesures de canal parmi des nœuds à des nœuds de premier type est fournie, ce qui permet d'augmenter la plage d'application de la technologie MIMO.
PCT/CN2015/085796 2015-01-30 2015-07-31 Procédé et appareil d'émission de signalisation Ceased WO2016119424A1 (fr)

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Citations (3)

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Publication number Priority date Publication date Assignee Title
CN101237264A (zh) * 2008-03-05 2008-08-06 中科院嘉兴中心微系统所分中心 基于无线传感网的虚拟mimo功率分配传输方案
WO2013138989A1 (fr) * 2012-03-19 2013-09-26 Renesas Mobile Corporation Procédé et appareil pour déterminer le mode de repli de canal partagé de liaison descendante physique
CN103580814A (zh) * 2013-10-10 2014-02-12 南京邮电大学 一种基于终端直通的虚拟多入多出通信方法

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CN102196585B (zh) * 2010-03-09 2013-12-04 鼎桥通信技术有限公司 一种协同多点传输下行传输方式的确定方法
CN102291842B (zh) * 2011-09-16 2014-09-10 湘潭大学 一种考虑用户QoS的虚拟MIMO配对方法
CN102546488B (zh) * 2011-12-16 2014-07-09 华中科技大学 基于有效信道参数半正交的干扰消除方法

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CN101237264A (zh) * 2008-03-05 2008-08-06 中科院嘉兴中心微系统所分中心 基于无线传感网的虚拟mimo功率分配传输方案
WO2013138989A1 (fr) * 2012-03-19 2013-09-26 Renesas Mobile Corporation Procédé et appareil pour déterminer le mode de repli de canal partagé de liaison descendante physique
CN103580814A (zh) * 2013-10-10 2014-02-12 南京邮电大学 一种基于终端直通的虚拟多入多出通信方法

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