[go: up one dir, main page]

WO2016033978A1 - Procédé et dispositif d'attribution et de détermination de quasi-colocation - Google Patents

Procédé et dispositif d'attribution et de détermination de quasi-colocation Download PDF

Info

Publication number
WO2016033978A1
WO2016033978A1 PCT/CN2015/077321 CN2015077321W WO2016033978A1 WO 2016033978 A1 WO2016033978 A1 WO 2016033978A1 CN 2015077321 W CN2015077321 W CN 2015077321W WO 2016033978 A1 WO2016033978 A1 WO 2016033978A1
Authority
WO
WIPO (PCT)
Prior art keywords
csi
qcl
port
information
ports
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/077321
Other languages
English (en)
Chinese (zh)
Inventor
孙云锋
郝鹏
张淑娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2016033978A1 publication Critical patent/WO2016033978A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications, and in particular to a configuration, method, and apparatus for quasi-common location.
  • UDN Ultra Dense Network
  • One way to realize cell virtualization is based on the idea that the control plane and the user plane are separated, that is, the information of the control plane is sent by the macro station or a specific carrier, and the data of the user plane is sent by the small cell; at the same time, in order to avoid the terminal from being mistakenly accessed.
  • Small cells and establish connections with small cells, which affect mobility.
  • a primary/secondary synchronization signal, a Common Reference Signal (CRS), a broadcast signal, and the like are not transmitted in a small cell.
  • the mobility and interference problems in the UDN can be effectively alleviated, but another problem that needs to be considered is that the terminal estimates the downlink large-scale parameters (for example: time/frequency offset, delay spread, frequency extension). Wait). Since the terminal cannot identify different small cells, and the small cell does not transmit the common reference signal, the terminal cannot perform time-frequency offset estimation based on the CRS.
  • the downlink large-scale parameters for example: time/frequency offset, delay spread, frequency extension. Wait). Since the terminal cannot identify different small cells, and the small cell does not transmit the common reference signal, the terminal cannot perform time-frequency offset estimation based on the CRS.
  • CSI-RS Channel State Information Reference Signal
  • FIG. 1 is a schematic diagram of a pattern of different port REs in a set of CSI-RSs according to the related art.
  • Resource Element RE for short
  • the RE corresponding to each CSI-RS is on two adjacent Orthogonal Frequency Division Multiplexing (OFDM) symbols. Therefore, this configuration limits the frequency offset.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the CSI-RS ports 0 to 7 in FIG. 1 correspond to the ports 15 to 22 in the protocol, respectively.
  • the figure shows a schematic diagram of the configuration of one set of CSI-RS.
  • different cells can configure CSI-RS at different time-frequency resource locations, but the basic pattern is consistent.
  • the CSI-RS mapping mode in different configurations is as follows:
  • Table 1 shows (k', l') corresponding to the CSI-RS resource mapping under the extended CP. As shown in Table 1, wl" represents the spread weighting value on the port.
  • Table 2 shows the (k', l') corresponding to the CSI-RS resource mapping under normal CP. As shown in table 2,
  • a CRS for satisfying a Quasi-Co-Location (QCL) relationship is configured for each CSI-RS, and the terminal can be based on the CRS.
  • QCL Quasi-Co-Location
  • Estimate large-scale feature parameters eg, time/frequency offset, delay spread, frequency spread
  • the large-scale feature parameters on the CRS are the same as the CSI-RS, where QCL is used to characterize the large-scale between antenna ports
  • the characteristic relationship when the QCL relationship is satisfied between the two antenna ports A and B, means that the estimated large-scale characteristic parameters of the channel on the antenna port A are also suitable for the antenna port B. Therefore, when in R11, when the CRS of the QCL is configured for the CSI-RS, it means that the CSI-RS port has the same large-scale characteristics as the channel of the CRS port to the terminal.
  • the small cell since the small cell does not send the cell-specific CRS, it cannot be implemented by configuring the CRS that satisfies the QCL relationship for the CSI-RS.
  • the related art lacks a solution for cooperative UEs in UDN to perform large-scale feature parameter estimation.
  • the embodiments of the present invention provide a configuration, a determining method, and a device for a quasi-common location, so as to at least solve the problem in the related art that a solution for collating a UE in a UDN for large-scale feature parameter estimation is lacking.
  • a method of configuring a quasi-common location is provided.
  • the method for configuring a quasi-common location includes: acquiring all channel state information reference signals CSI-RS currently configured; and configuring corresponding quasi-co-location channel states for each CSI-RS in all CSI-RSs
  • the information reference signal QCL-CSI-RS wherein the QCL-CSI-RS is used to jointly estimate the channel large-scale feature parameter with the CSI-RS; and configure all the CSI-RSs and the QCL-CSI-RSs corresponding to the sets of CSI-RSs to terminal.
  • the channel large-scale feature parameter comprises at least one of the following: a frequency offset parameter and a frequency extension parameter.
  • the method further includes: transmitting, on a part or all of the ports used by the CSI-RS, a corresponding QCL-CSI-RS.
  • transmitting the corresponding QCL-CSI-RS on some or all of the ports used by the CSI-RS includes one of the following: QCL-CSI-RS supports only one port by default, and the reference signal of QCL-CSI-RS port 0 It is sent on port 0 of CSI-RS; QCL-CSI-RS supports up to 2 ports by default. When the number of QCL-CSI-RS ports is 1, the reference signal of QCL-CSI-RS port 0 is on the port of CSI-RS.
  • QCL-CSI-RS supports only 2 ports by default, and the reference signals of QCL-CSI-RS port 0 and port 1 are respectively sent on port 0 and port 1 of CSI-RS; or, QCL- The reference signals of CSI-RS port 0 and port 1 are respectively at port 0 and port of CSI-RS.
  • Sent where N is the number of ports of the CSI-RS and N is a positive integer. Indicates rounding up x.
  • the method further includes: indicating parameter configuration information of the QCL-CSI-RS to the terminal, where the parameter configuration information includes at least one of the following: resource configuration indication information, QCL-CSI-RS port number information, scrambling code identification (ID) information, subframe configuration information, relative sub- Frame configuration information, mapping band indication information; the relative subframe configuration information includes at least one of: a subframe offset or a slot offset of the QCL-CSI-RS with respect to the CSI-RS, and a QCL-CSI-RS relative to the CSI- The cycle of the RS.
  • the parameter configuration information includes at least one of the following: resource configuration indication information, QCL-CSI-RS port number information, scrambling code identification (ID) information, subframe configuration information, relative sub- Frame configuration information, mapping band indication information
  • the relative subframe configuration information includes at least one of: a subframe offset or a slot offset of the QCL-CSI-RS with respect to the CSI-RS, and a QCL-CSI-RS relative to the CSI- The cycle of the
  • the method further includes: sending configuration indication information of the QCL-CSI-RS to the terminal, where the number of ports carrying the QCL-CSI-RS in the configuration indication information
  • the information, the port number information is used to implicitly indicate the QCL packet information in the CSI-RS, and is determined by the number of QCL packets of the CSI-RS, and the QCL packet information is used to indicate that all the ports in the CSI-RS cannot satisfy the QCL.
  • the ports are grouped and the ports that satisfy the QCL characteristics are divided into the same group.
  • transmitting the corresponding QCL-CSI-RS on part or all of the ports used by the CSI-RS includes: minimizing the CSI-RS port index in the k-th packet in the k-th CSI-RS port k Send on the port, where k is a natural number.
  • the configuration indication information further carries correspondence relationship information between each port of the QCL-CSI-RS and each port of the CSI-RS.
  • the correspondence information is one of: a CSI-RS port corresponding to each port of the QCL-CSI-RS; and a CSI-RS port packet corresponding to each port of the QCL-CSI-RS.
  • the QCL-CSI-RS and the CSI-RS are on different orthogonal frequency division multiplexing symbols or on different time slots or on a subframe or time slot with a CSI-RS time interval greater than a first predetermined threshold. send.
  • the time interval between transmitting the QCL-CSI-RS and transmitting the CSI-RS is less than a second preset threshold.
  • the subframe offset of the CSI-RS and the QCL-CSI-RS is pre-agreed with the terminal, and the default QCL-CSI-RS and the K port with the smallest CSI-RS index occupy the same resource location, where the subframe is biased Set to 0 and K is a positive integer.
  • the QCL-CSI-RS and the CSI-RS adopt the same sequence.
  • the above method further comprises: configuring the zero-power ZP CSI-RS to make the ZP CSI-RS cover the resource element RE corresponding to the QCL-CSI-RS, or by configuring the non-zero power NZP CSI-RS to make the NZP CSI At least one of the -RSs covers the RE corresponding to the QCL-CSI-RS.
  • the QCL-CSI-RS is transmitted on a part of the available bandwidth, and carries the transmission band indication information of the QCL-CSI-RS in the configuration indication information.
  • the method further includes: receiving frequency offset information fed back by the terminal; performing rephasing processing of the crystal oscillator based on the frequency offset information, or, in the CSI-RS and/or The frequency offset pre-calibration is performed when the DMRS is transmitted.
  • a method of determining a quasi-common position is provided.
  • the method for determining a quasi-co-location includes: receiving CSI-RS information configured by a network side device and QCL-CSI-RS configuration information configured for each set of CSI-RS; and CSI-RS information according to CSI-RS information and QCL-CSI - RS configuration information determines resource locations of CSI-RS and QCL-CSI-RS; utilizes CSI-RS reference signals received at resource locations of CSI-RSs and QCLs received at resource locations of QCL-CSI-RSs The CSI-RS reference signal jointly estimates the channel large-scale feature parameters.
  • the channel large-scale feature parameter comprises at least one of the following: a frequency offset parameter and a frequency extension parameter.
  • the method before performing the joint estimation of the channel large-scale feature parameter, the method further includes: the reference signal of the default QCL-CSI-RS port is sent on part or all of the ports used by the CSI-RS.
  • the default QCL-CSI-RS is transmitted on some or all of the ports used by the CSI-RS, including one of the following: when the number of ports of the QCL-CSI-RS is 1, the default QCL-CSI-RS port 0 The reference signal is sent on port 0 of the CSI-RS; when the number of ports of the QCL-CSI-RS is 2, the reference signals of the QCL-CSI-RS port 0 and port 1 are respectively on port 0 and port 1 of the CSI-RS. Send; or, QCL-CSI-RS port 0 and port 1 reference signals are respectively on port 0 and port of CSI-RS Up, where N is the number of ports of the CSI-RS and N is a positive integer.
  • receiving the CSI-RS information and the QCL-CSI-RS configuration information comprises: obtaining the port number information of the QCL-CSI-RS from the QCL-CSI-RS configuration indication information, where the port number information is used to implicitly indicate the CSI - QCL packet information in the RS, and determined by the number of QCL packets of the CSI-RS; determining the QCL packet mode of the CSI-RS according to the configuration indication information.
  • determining the QCL grouping manner of the CSI-RS according to the configuration indication information includes one of the following: when the number of ports of the QCL-CSI-RS is 1, all ports of the default CSI-RS satisfy the QCL relationship; when QCL-CSI- When the number of ports on the RS is 2, the port group in all ports of the default CSI-RS Both meet QCL relationship, port group Both satisfy the QCL relationship, and the QCL relationship is not satisfied between the two port groups, and the reference signal of the default QCL-CSI-RS port 0 is sent on the port 0 of the CSI-RS, and the reference signal of the QCL-CSI-RS port 1 is CSI-RS port Sent on, where N is a positive integer.
  • the number of ports of the default QCL-CSI-RS is less than or equal to two.
  • receiving the CSI-RS information and the QCL-CSI-RS configuration information includes: obtaining the port number information of the QCL-CSI-RS from the QCL-CSI-RS configuration indication information, and each port and CSI of the QCL-CSI-RS. Correspondence information of each port of the RS; determining a QCL packet condition of the CSI-RS and a port of the CSI-RS corresponding to the reference signal transmission of each port of the QCL-CSI-RS according to the port number information and the correspondence relationship information.
  • the port for determining the QCL packet of the CSI-RS and the CSI-RS corresponding to the reference signal transmission of each port of the QCL-CSI-RS according to the port number information and the correspondence information includes one of the following: when the correspondence information is indicated When the CSI-RS port carrying each QCL-CSI-RS port reference signal is carried, the CSI-RS port that satisfies the QCL characteristic in the default CSI-RS is an index continuous CSI-RS port, wherein the kth group satisfies the QCL characteristic.
  • the port determining method of the CSI-RS is: determining the CSI-RS port P k corresponding to the QCL-CSI-RS port k and determining the CSI-RS port P k+1 corresponding to the QCL-CSI-RS port k+1 , then
  • the k-group CSI-RS ports satisfying the QCL characteristics are P k ⁇ P k+1 -1; when the QCL-CSI-RS port k is the maximum port index of the QCL-CSI-RS, the k-th group satisfies the QCL characteristic.
  • the port of the CSI-RS is P k to N, where N is the number of ports of the CSI-RS, k is a natural number, and N is a positive integer; when the correspondence information indicates the port grouping information of each CSI-RS that satisfies the QCL characteristic
  • the reference signal on the default QCL-CSI-RS port k is transmitted on the port with the smallest CSI-RS port index in the kth packet.
  • the method further includes that the resource element RE corresponding to the QCL-CSI-RS that is transmitted by default is covered by a zero-power (ZP) CSI-RS.
  • ZP zero-power
  • the QCL-CSI-RS configuration information is determined according to a pre-agreed manner or by means of signaling analysis, and includes at least one of the following: resource configuration indication information, QCL-CSI-RS port number information, scrambling code ID information, and subframe.
  • the configuration information, the relative subframe configuration information, and the mapping band indication information; the relative subframe configuration information includes at least one of the following: a subframe offset or a time slot offset of the QCL-CSI-RS with respect to the CSI-RS, QCL-CSI- The period of the RS relative to the CSI-RS.
  • the method further includes: feeding back the frequency offset estimation result to the network side device after jointly estimating the frequency offset according to the QCL-CSI-RS reference signal and the CSI-RS reference signal.
  • a quasi-common position configuration apparatus is provided.
  • the apparatus for configuring a quasi-co-location includes: an obtaining module configured to acquire all CSI-RSs currently configured; and a first configuration module configured to separately configure each CSI-RS in all CSI-RSs Corresponding QCL-CSI-RS, and all the CSI-RSs and the QCL-CSI-RSs corresponding to the sets of CSI-RSs are configured to the terminal, wherein the QCL-CSI-RS is used to jointly estimate the channel large-scale features with the CSI-RS. parameter.
  • the channel large-scale feature parameter comprises at least one of the following: a frequency offset parameter and a frequency extension parameter.
  • the apparatus further includes: a sending module, configured to send a corresponding QCL-CSI-RS on some or all of the ports used by the CSI-RS.
  • a sending module configured to send a corresponding QCL-CSI-RS on some or all of the ports used by the CSI-RS.
  • the sending module is configured to perform the sending operation according to one of the following ways: the QCL-CSI-RS supports only one port by default, and the reference signal of the QCL-CSI-RS port 0 is sent on the port 0 of the CSI-RS; QCL -CSI-RS supports up to 2 ports by default.
  • the number of QCL-CSI-RS ports is 1, the reference signal of QCL-CSI-RS port 0 is sent on port 0 of CSI-RS; when QCL-CSI-RS port When the number is 2, the reference signals of QCL-CSI-RS port 0 and port 1 are respectively sent on port 0 and port 1 of the CSI-RS; or, the reference signals of QCL-CSI-RS port 0 and port 1 are respectively at CSI.
  • -RS port 0 and port Sent where N is the number of ports of the CSI-RS and N is a positive integer. Indicates that x is rounded up; QCL-CSI-RS supports only 2 ports by default, and the reference signals of QCL-CSI-RS port 0 and port 1 are respectively sent on port 0 and port 1 of CSI-RS; or, QCL- The reference signals of CSI-RS port 0 and port 1 are respectively at port 0 and port of CSI-RS. Sent, where N is the number of ports of the CSI-RS and N is a positive integer. Indicates rounding up x.
  • the foregoing apparatus further includes: a first indication module, configured to indicate parameter configuration information of the QCL-CSI-RS to the terminal, where the parameter configuration information includes at least one of the following: resource configuration indication information, QCL-CSI-RS port Number information, scrambling code ID information, subframe configuration information, relative subframe configuration information, mapping band indication information; relative subframe configuration information includes at least one of: QCL-CSI-RS subframe offset with respect to CSI-RS Or slot offset, the period of the QCL-CSI-RS relative to the CSI-RS.
  • a first indication module configured to indicate parameter configuration information of the QCL-CSI-RS to the terminal, where the parameter configuration information includes at least one of the following: resource configuration indication information, QCL-CSI-RS port Number information, scrambling code ID information, subframe configuration information, relative subframe configuration information, mapping band indication information; relative subframe configuration information includes at least one of: QCL-CSI-RS subframe offset with respect to CSI-RS Or slot offset, the period of the QCL-CSI-RS relative to the CSI
  • the foregoing apparatus further includes: a second indication module, configured to send configuration indication information of the QCL-CSI-RS to the terminal, where the configuration indication information carries the port number information of the QCL-CSI-RS, and the port number information is used.
  • the QCL packet information in the CSI-RS is implicitly indicated and determined by the number of QCL packets of the CSI-RS, and the QCL packet information is used to indicate that when all the ports in the CSI-RS cannot meet the QCL characteristics, the port is performed. Grouping, the ports that satisfy the QCL characteristics are divided into the same group.
  • the transmitting module is further configured to transmit the reference signal on the QCL-CSI-RS port k on the port with the smallest CSI-RS port index in the kth packet, where k is a natural number.
  • the configuration indication information further carries correspondence relationship information between each port of the QCL-CSI-RS and each port of the CSI-RS.
  • the correspondence information is one of: a CSI-RS port corresponding to each port of the QCL-CSI-RS; and a CSI-RS port packet corresponding to each port of the QCL-CSI-RS.
  • the QCL-CSI-RS and the CSI-RS are on different orthogonal frequency division multiplexing symbols or on different time slots or on a subframe or time slot with a CSI-RS time interval greater than a first predetermined threshold. send.
  • the time interval between transmitting the QCL-CSI-RS and transmitting the CSI-RS is less than a second preset threshold.
  • the foregoing apparatus further includes: a first processing module, configured to pre-arrange the subframe offsets of the CSI-RS and the QCL-CSI-RS with the terminal, and default the minimum K indexes of the QCL-CSI-RS and the CSI-RS index
  • the ports occupy the same resource location, where the subframe offset is not 0 and K is a positive integer.
  • the QCL-CSI-RS and the CSI-RS adopt the same sequence.
  • the apparatus further includes: a second configuration module, configured to configure a zero-power (ZP) CSI-RS to enable the ZP CSI-RS to cover a resource element RE corresponding to the QCL-CSI-RS, or by configuring a non-zero
  • the power (NZP) CSI-RS is such that at least one of the NZP CSI-RSs covers the RE corresponding to the QCL-CSI-RS.
  • the QCL-CSI-RS is transmitted on a part of the available bandwidth, and carries the transmission band indication information of the QCL-CSI-RS in the configuration indication information.
  • the apparatus further includes: a receiving module configured to receive frequency offset information fed back by the terminal; and a second processing module configured to perform phase re-phase locking processing of the crystal oscillator based on the frequency offset information, or in CSI-RS and/or DMRS Frequency offset pre-calibration when transmitting.
  • a receiving module configured to receive frequency offset information fed back by the terminal
  • a second processing module configured to perform phase re-phase locking processing of the crystal oscillator based on the frequency offset information, or in CSI-RS and/or DMRS Frequency offset pre-calibration when transmitting.
  • a quasi-common position determining apparatus is provided.
  • the determining device of the quasi-common position includes: a receiving module, configured to receive CSI-RS information configured by the network side device, and QCL-CSI-RS configuration information configured for each set of CSI-RS; first determining module And being configured to determine resource locations of the CSI-RS and the QCL-CSI-RS according to the CSI-RS information and the QCL-CSI-RS configuration information; and the estimating module is configured to use the CSI-RS received at the resource location of the CSI-RS
  • the reference signal and the QCL-CSI-RS reference signal received at the resource location of the QCL-CSI-RS jointly estimate channel large-scale feature parameter information.
  • the channel large-scale feature parameter comprises at least one of the following: a frequency offset parameter and a frequency extension parameter.
  • the apparatus further includes: a second determining module, where the reference signal set as the default QCL-CSI-RS port is sent on part or all of the ports used by the CSI-RS.
  • the second determining module is configured to perform one of the following operations: when the number of ports of the QCL-CSI-RS is 1, the reference signal of the default QCL-CSI-RS port 0 is sent on the port 0 of the CSI-RS; When the number of ports of the QCL-CSI-RS is 2, the reference signals of the QCL-CSI-RS port 0 and port 1 are respectively sent on the port 0 and port 1 of the CSI-RS; or, the QCL-CSI-RS port 0 and The reference signals of port 1 are respectively at port 0 and port of CSI-RS.
  • N is the number of ports of the CSI-RS and N is a positive integer.
  • the receiving module includes: a first acquiring unit, configured to obtain port number information of the QCL-CSI-RS from the QCL-CSI-RS configuration indication information, where the port number information is used to implicitly indicate the CSI-RS
  • the QCL packet information is determined by the number of QCL packets of the CSI-RS; the first determining unit is configured to determine a QCL grouping manner of the CSI-RS according to the configuration indication information.
  • the third determining module is configured to perform one of the following operations: when the number of ports of the QCL-CSI-RS is 1, all ports of the default CSI-RS satisfy the QCL relationship; when the number of ports of the QCL-CSI-RS is 2, the port group in all ports of the default CSI-RS Both meet QCL relationship, port group Both satisfy the QCL relationship, and the QCL relationship is not satisfied between the two port groups, and the reference signal of the default QCL-CSI-RS port 0 is sent on the port 0 of the CSI-RS, and the reference signal of the QCL-CSI-RS port 1 is CSI-RS port Sent on, where N is a positive integer.
  • the number of ports of the default QCL-CSI-RS is less than or equal to two.
  • the receiving module includes: a second obtaining unit, configured to acquire port number information of the QCL-CSI-RS and correspondence information of each port of the QCL-CSI-RS and each port of the CSI-RS; and a second determining unit, It is configured to determine a QCL packet condition of the CSI-RS and a port of the CSI-RS corresponding to the reference signal of each port of the QCL-CSI-RS according to the port number information and the correspondence relationship information.
  • the fourth determining module is configured to perform one of the following operations: when the correspondence information indicates a CSI-RS port that carries each QCL-CSI-RS port reference signal, the CSI that satisfies the QCL characteristic in the default CSI-RS
  • the RS port is an index continuous CSI-RS port, wherein the k-th group of the CSI-RS that satisfies the QCL characteristic is determined by determining the CSI-RS port P k corresponding to the QCL-CSI-RS port k and determining the QCL.
  • the k-th CSI-RS port k+1 corresponds to the CSI-RS port P k+1 , then the k-th group of the CSI-RS that satisfies the QCL characteristic is P k - P k+1 -1; when the QCL-CSI-RS port When k is the maximum port index of the QCL-CSI-RS, the port of the k-th CSI-RS that satisfies the QCL characteristic is P k to N, where N is the number of ports of the CSI-RS, k is a natural number, and N is a positive integer;
  • the reference signal on the default QCL-CSI-RS port k is performed on the port with the smallest CSI-RS port index in the kth packet. send.
  • the apparatus further includes: a fifth determining module, wherein the resource element RE corresponding to the QCL-CSI-RS set to be transmitted by default is covered by the ZP CSI-RS.
  • the first determining module is configured to determine, according to a pre-agreed manner or by means of signaling, that the QCL-CSI-RS configuration information includes at least one of the following: resource configuration indication information, QCL-CSI-RS port number information, Scrambling code ID information, subframe configuration information, relative subframe configuration information, and mapping band indication information; the relative subframe configuration information includes at least one of: a subframe offset or a time slot of the QCL-CSI-RS with respect to the CSI-RS Bias, the period of the QCL-CSI-RS relative to the CSI-RS.
  • the apparatus further includes: a feedback module, configured to feed back the frequency offset estimation result to the network side device after jointly estimating the frequency offset according to the QCL-CSI-RS reference signal and the CSI-RS reference signal.
  • a feedback module configured to feed back the frequency offset estimation result to the network side device after jointly estimating the frequency offset according to the QCL-CSI-RS reference signal and the CSI-RS reference signal.
  • all CSI-RSs of the current configuration are obtained, and corresponding QCL-CSI-RSs are respectively configured for each CSI-RS in all CSI-RSs, where QCL-CSI-RS is used for CSI -RS jointly estimates channel large-scale feature parameters; configures all CSI-RSs and QCL-CSI-RSs corresponding to each set of CSI-RSs to the terminal, thereby solving the lack of a large-scale feature of the cooperative UE in the UDN in the related art
  • the problem of the solution of the parameter estimation can further avoid the noise influence of the CSI-RS when used for frequency offset and frequency extension estimation, and can directly use the CSI-RS as the cell discovery signal.
  • FIG. 1 is a schematic diagram of a pattern of different port REs in a set of CSI-RSs according to the related art
  • FIG. 2 is a flow chart of a method for configuring a quasi-common position according to an embodiment of the present invention
  • FIG. 3 is a flow chart of a method for determining a quasi-common position according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of performing a QCL-CSI-RS configuration in accordance with a preferred embodiment of the present invention
  • FIG. 5 is a structural block diagram of a quasi-common position configuration apparatus according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a quasi-common position configuration apparatus according to a preferred embodiment of the present invention.
  • FIG. 7 is a block diagram showing the structure of a quasi-common position determining apparatus according to an embodiment of the present invention.
  • Figure 8 is a block diagram showing the structure of a quasi-common position determining apparatus according to a preferred embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a system for QCL enhancement in cell virtualization according to a preferred embodiment of the present invention.
  • FIG. 2 is a flow chart of a method of configuring a quasi-co-location according to an embodiment of the present invention. As shown in FIG. 2, the method may include the following processing steps:
  • Step S202 Acquire all CSI-RSs currently configured
  • Step S204 Configure a corresponding QCL-CSI-RS for each set of CSI-RSs in all CSI-RSs, where the QCL-CSI-RS is used to jointly estimate channel large-scale feature parameters with the CSI-RS.
  • Step S206 All the CSI-RSs and the QCL-CSI-RSs corresponding to the sets of CSI-RSs are configured to the terminal.
  • a related solution for large-scale feature parameter estimation in a coordinated UE in a UDN is lacking in the related art.
  • the estimation problem of downlink large-scale parameters is considered in the idea of cell virtualization based on the method shown in FIG.
  • the terminal can jointly estimate downlink large-scale parameter information according to CSI-RS and QCL-CSI-RS, especially frequency offset and frequency in downlink large-scale parameters.
  • Extended parameters are configured.
  • QCL-CSI-RS may also be referred to as a joint parameter estimation CSI-RS, a reference CSI-RS, and other equivalent names, which do not constitute an undue limitation to the present invention.
  • the channel large-scale feature parameter may include, but is not limited to, at least one of the following: a frequency offset parameter and a frequency extension parameter.
  • step S204 the following operations may also be included:
  • Step S1 Send the corresponding QCL-CSI-RS on some or all of the ports used by the CSI-RS.
  • transmitting the corresponding QCL-CSI-RS on at least part or all of the ports used by the CSI-RS may include at least one of the following manners:
  • the QCL-CSI-RS supports only one port by default, and the reference signal of the QCL-CSI-RS port 0 is sent on the port 0 of the CSI-RS.
  • QCL-CSI-RS supports up to 2 ports by default.
  • the number of QCL-CSI-RS ports is 1, the reference signal of QCL-CSI-RS port 0 is sent on port 0 of CSI-RS.
  • the reference signals of QCL-CSI-RS port 0 and port 1 are respectively sent on port 0 and port 1 of the CSI-RS; or QCL-CSI-RS port 0 and The reference signals of QCL-CSI-RS port 1 are respectively at port 0 and port of CSI-RS.
  • N is the number of ports of the CSI-RS and N is a positive integer, preferably N is an even number, and N is greater than or equal to 2, Indicates rounding up x.
  • Manner 3 When the number of ports of the CSI-RS is greater than or equal to 2, the QCL-CSI-RS defaults to 2 ports, and the reference signals of the default QCL-CSI-RS port 0 and port 1 are respectively at the port 0 of the CSI-RS. Transmitted on port 1; or the reference signals of QCL-CSI-RS port 0 and QCL-CSI-RS port 1 are respectively at port 0 and port of CSI-RS Up, where N is the number of ports of the CSI-RS and N is a positive integer, preferably N is an even number, and N is greater than or equal to 2, Indicates rounding up.
  • the port number of the QCL-CSI-RS is configured on the network side and/or the reference signal of each port of the QCL-CSI-RS is transmitted and the corresponding port of the CSI-RS is transmitted, and the QCL-CSI-RS port is determined according to the corresponding relationship.
  • the CSI-RS port of the reference signal sequence is configured on the network side and/or the reference signal of each port of the QCL-CSI-RS is transmitted and the corresponding port of the CSI-RS is transmitted, and the QCL-CSI-RS port is determined according to the corresponding relationship.
  • step S204 the following steps may also be included:
  • Step S2 Instruct the parameter configuration information of the QCL-CSI-RS to the terminal, where the parameter configuration information includes at least one of the following: resource configuration indication information, QCL-CSI-RS port number information, scrambling code identification ID information, and subframe configuration.
  • step S204 the following operations may also be included:
  • Step S3 Sending configuration indication information of the QCL-CSI-RS to the terminal, where the configuration indication information carries the port number information of the QCL-CSI-RS, and the port number information is used to implicitly indicate the QCL packet information in the CSI-RS. And determined by the number of QCL packets of the CSI-RS, the QCL packet information is used to indicate that when all the ports in the CSI-RS cannot satisfy the QCL characteristics, the ports are grouped, and the ports satisfying the QCL characteristics are divided into the same group. do not.
  • transmitting the corresponding QCL-CSI-RS on some or all of the ports used by the CSI-RS may further include: the reference signal on the QCL-CSI-RS port k is at the kth The packet is sent on the port with the smallest CSI-RS port index in the packet, where k is a natural number.
  • the configuration indication information may further carry correspondence information between each port of the QCL-CSI-RS and each port of the CSI-RS.
  • the foregoing correspondence information may be one of the following:
  • the QCL-CSI-RS and the CSI-RS are transmitted on different orthogonal frequency division multiplexing symbols or on different time slots or greater than a first predetermined threshold.
  • the time interval between transmitting the QCL-CSI-RS and transmitting the CSI-RS is less than a second preset threshold.
  • the subframe offset of the CSI-RS and the QCL-CSI-RS is pre-agreed with the terminal, and the default QCL-CSI-RS and the K port with the smallest CSI-RS index occupy the same resource location, where the subframe is biased Set to 0 and K is a positive integer.
  • the transmission period of the QCL-CSI-RS is twice the transmission period of the CSI-RS; or,
  • the transmission period of the QCL-CSI-RS is twice the transmission period of the CSI-RS; or,
  • the transmission period of the QCL-CSI-RS is 4 times of the transmission period of the CSI-RS; or,
  • the transmission period of the QCL-CSI-RS is eight times the transmission period of the CSI-RS.
  • the QCL-CSI-RS uses the same sequence as the CSI-RS.
  • the above method may further include the following operations:
  • Step S4 By configuring the ZP CSI-RS to make the ZP CSI-RS cover the RE corresponding to the QCL-CSI-RS, or by configuring the NZP CSI-RS to cover at least one set of the NZP CSI-RS with the QCL-CSI -RE corresponding to RS.
  • the QCL-CSI-RS may transmit on a part of the available bandwidth, and carry the transmission band indication information of the QCL-CSI-RS in the configuration indication information.
  • step S204 the following steps may also be included:
  • Step S5 receiving frequency offset information fed back by the terminal
  • Step S6 performing rephasing processing of the crystal oscillator based on the frequency offset information, or performing frequency offset pre-calibration when transmitting the CSI-RS and/or the demodulation reference signal DMRS.
  • FIG. 3 is a flow chart of a method of determining a quasi-common position in accordance with an embodiment of the present invention. As shown in FIG. 3, the method may include the following processing steps:
  • Step S302 Receive CSI-RS information configured by the network side device and QCL-CSI-RS configuration information configured for each set of CSI-RSs;
  • Step S304 Determine resource locations of the CSI-RS and the QCL-CSI-RS according to the CSI-RS information and the QCL-CSI-RS configuration information;
  • Step S306 Jointly estimating the large-scale feature parameter information by using the CSI-RS reference signal received at the resource location of the CSI-RS and the QCL-CSI-RS reference signal received at the resource location of the QCL-CSI-RS.
  • the channel large-scale feature parameter may include, but is not limited to, at least one of the following:
  • Frequency offset parameter frequency extension parameter.
  • the following operations may also be included:
  • Step S7 The default QCL-CSI-RS is transmitted on some or all of the ports used by the CSI-RS.
  • the sending of the default QCL-CSI-RS on some or all of the ports used by the CSI-RS may include one of the following ways:
  • Mode 3 In the case that the default QCL-CSI-RS is 2 ports, the reference signals of the default QCL-CSI-RS port 0 and port 1 are respectively sent on port 0 and port 1 of the CSI-RS; or the default QCL-CSI - RS port 0 and QCL-CSI-RS port 1 reference signals are respectively on port 0 and port of CSI-RS Up, where N is the number of ports of the CSI-RS and N is a positive integer, preferably N is an even number, and N is greater than or equal to 2, Indicates rounding up.
  • Manner 4 The terminal receives the number of ports of the QCL-CSI-RS configured on the network side and/or the correspondence between the reference signal transmission of each port of the QCL-CSI-RS and the ports of the CSI-RS, and according to the number of QCL-CSI-RS ports The information and/or the CSI-RS port correspondence information determines the CSI-RS port corresponding to the QCL-CSI-RS transmission reference signal.
  • the number of ports of the default CSI-RS of the terminal must not be smaller than the number of ports of the QCL-CSI-RS.
  • receiving the CSI-RS information and the QCL-CSI-RS configuration information may include the following steps:
  • Step S8 Obtain port number information of the QCL-CSI-RS from the configuration indication information of the QCL-CSI-RS, where the port number information is used to implicitly indicate the QCL packet information in the CSI-RS, and the QCL of the CSI-RS The number of groups is determined;
  • Step S9 Determine a QCL grouping manner of the CSI-RS according to the configuration indication information.
  • determining the QCL grouping manner of the CSI-RS according to the configuration indication information may include one of the following manners:
  • the number of ports of the default QCL-CSI-RS is less than or equal to two.
  • receiving the CSI-RS information and the QCL-CSI-RS configuration information may include the following operations:
  • Step S10 Obtain, from the QCL-CSI-RS configuration indication information, the port number information of the QCL-CSI-RS and the correspondence relationship between each port of the QCL-CSI-RS and each port of the CSI-RS;
  • Step S11 Determine a QCL packet condition of the CSI-RS and a port of the CSI-RS corresponding to the reference signal transmission of each port of the QCL-CSI-RS according to the port number information and the correspondence relationship information.
  • determining the QCL packet condition of the CSI-RS according to the port number information and the correspondence information, and the port of the CSI-RS corresponding to the reference signal of each port of the QCL-CSI-RS may include one of the following manners. :
  • the CSI-RS port that satisfies the QCL characteristic in the default CSI-RS is an index-continuous CSI-RS port, where
  • the port determining method of the k-th CSI-RS that satisfies the QCL characteristic is: determining the CSI-RS port P k corresponding to the QCL-CSI-RS port k and determining the CSI-RS corresponding to the QCL-CSI-RS port k+1 Port P k+1 , the port of the k -th CSI-RS that satisfies the QCL characteristic is P k ⁇ P k+1 ⁇ 1; when the QCL-CSI-RS port k is the maximum port index of the QCL-CSI-RS, Then, the port of the k -th CSI-RS that satisfies the QCL characteristic is P k to N, where N is the number of ports of the CSI-
  • the above method may further comprise the following steps:
  • Step S12 The resource element RE corresponding to the QCL-CSI-RS transmitted by default is covered by the zero-power ZP CSI-RS.
  • the QCL configuration information may be determined according to a pre-agreed manner or by means of signaling resolution, including at least one of the following:
  • mapping band indication information
  • the foregoing relative subframe configuration information may include, but is not limited to, at least one of: a subframe offset or a slot offset of the QCL-CSI-RS with respect to the CSI-RS, and a period of the QCL-CSI-RS with respect to the CSI-RS.
  • step S304 After jointly estimating the large-scale feature parameter information in step S304, the following operations may also be included:
  • Step S13 After jointly estimating the frequency offset according to the QCL-CSI-RS reference signal and the CSI-RS reference signal, the frequency offset estimation result is fed back to the network side device.
  • a method of configuring the QCL-CSI-RS for each set of CSI-RS is provided in the preferred embodiment. Based on the method, the network side device configures a corresponding QCL-CSI-RS for each set of configured CSI-RSs, and configures related information of the QCL-CSI-RSs to the terminal.
  • FIG. 4 is a schematic diagram of a QCL-CSI-RS configuration in accordance with a preferred embodiment of the present invention. As shown in FIG.
  • the resource location corresponding to the target cell CSI-RS is The illustrated RE, the CSI-RS configurations of the neighboring cell #1 and the neighboring cell #2 are respectively with The corresponding location, at this time, the QCL-CSI-RS can be configured at a position that does not conflict with the neighboring cell #1 and the neighboring cell #2, as shown in the figure. The location shown.
  • the target cell may have multiple neighboring cells.
  • the QCL-CSI-RS may be configured to other subframes according to the CSI-RS usage of the neighboring cell; or When the number of CSI-RS ports between the Macro and the small cell is different, or when the number of CSI-RS ports between the small cells is different, the CSI-RS re-use factor may be misaligned. In this case, it is difficult to be directly used as the NZP.
  • the resources configured by the CSI-RS are configured as QCL-CSI-RS.
  • the location of the QCL-CSI-RS needs to meet, but is not limited to, at least one of the following conditions:
  • the QCL-CSI-RS and the CSI-RS are not at least not transmitted on the same OFDM symbol or the same time slot, or the time interval between the QCL-CSI-RS and the corresponding CSI-RS is greater than or equal to the first time. Preset threshold. The advantage of this is that it can better suppress the effects of noise.
  • Condition 2 The time interval between the QCL-CSI-RS and the corresponding CSI-RS is less than or equal to a second preset threshold. The advantage of this is that it can support a wider range of frequency offset estimates.
  • the network side device may further determine the relative positional relationship of the QCL-CSI-RS according to the speed of the terminal or the potential frequency offset range estimation. For example, when the terminal moves at a high speed and/or considers that there is a large frequency offset between the current transmission and reception dual-transmission, the network-side device should configure the QCL-CSI-RS to be the same as the CSI-RS when configuring the QCL-CSI-RS. If the terminal moves at a slower speed and/or the current transmission and reception dual transmission has a smaller frequency offset, the network side device should try to use QCL-CSI when configuring the QCL-CSI-RS. - the RS is configured in a subframe different from the CSI-RS or a subframe farther away from the CSI-RS;
  • the network side device may send the QCL-CSI-RS on the same part or all the ports as the CSI-RS, and may instruct the terminal to send the QCL-CSI-RS in a predetermined manner or signaling manner.
  • the CSI-RS port used.
  • the QCL-CSI-RS configured by the network side device for the terminal should include at least one of the following information:
  • the relative subframe configuration information should include at least one of the following configuration information of the QCL-CSI-RS relative to the CSI-RS: a subframe offset or a slot offset relative to the CSI-RS, relative to the CSI- The cycle of the RS.
  • the period of the QCL-CSI-RS is greater than or equal to the period of the CSI-RS, and the relative period multiple relationship preferably takes one or more of 1/2/4/8/16/32.
  • the network side device configures configuration information of the QCL-CSI-RS corresponding to each set of CSI-RSs to the terminal. Then, the terminal may jointly perform channel large-scale feature parameter estimation of at least frequency offset and frequency extension according to the received CSI-RS and the QCL-CSI-RS information corresponding to the CSI-RS.
  • the terminal may perform estimation of channel large-scale parameters according to the CSI-RS and its corresponding QCL-CSI-RS, thereby solving the problem that the existing CSI-RS pattern design is used for frequency offset and frequency extension estimation.
  • the problem of large noise impact can be determined at the same time.
  • the network side device can determine parameters such as resource location, time slot or subframe configuration, and periodic configuration of the QCL-CSI-RS according to the CSI-RS configuration of the surrounding cell and the potential frequency offset condition, thereby making the QCL-CSI-RS
  • the configuration avoids collisions with CSI-RS configurations of other surrounding cells as much as possible, thereby reducing interference to neighboring cell CSI-RSs.
  • the parameters of the relevant QCL-CSI-RS are notified to the terminal in a configured manner.
  • the configuration of the partial parameters may be performed by the network side device and the terminal in a pre-agreed manner.
  • the reference signal sequence corresponding to each port of the network side device and/or the default QCL-CSI-RS of the terminal is based on the same interference signal sequence corresponding to each port of the CSI-RS.
  • the code ID is generated. In this way, when the QCL-CSI-RS parameter is configured for the terminal, the signaling overhead for configuring the QCL-CSI-RS reference signal sequence scrambling code ID can be saved.
  • the network side device and the terminal may support only one port by default QCL-CSI-RS, and default to port 0 of the CSI-RS (the first port of the CSI-RS, corresponding to the LTE in LTE) Port 15) transmits a reference signal sequence of the QCL-CSI-RS.
  • the terminal can map the corresponding RE and CSI-RS according to the QCL-CSI-RS.
  • the RE corresponding to the port 0 map jointly estimates at least the frequency offset and the frequency extension channel large-scale feature parameters. At this time, all ports in the terminal default CSI-RS satisfy the QCL characteristics.
  • the network side device and the terminal may support the maximum number of ports by the QCL-RS, and carry the port number information in the configuration information.
  • the number of QCL-CSI-RS ports is 1, the reference signal of the default QCL-CSI-RS is sent on port 0 of the CSI-RS; when the number of QCL-CSI-RS ports is 2, the default QCL-CSI-RS The reference signals of port 0 and port 1 are sent on port 0 and port 1 of the CSI-RS, respectively, or on port 0 of the CSI-RS.
  • N is the number of ports of the CSI-RS and N is a positive integer, preferably N is an even number, and N is greater than or equal to 2, Indicates rounding up. .
  • the terminal can default to the QCL characteristic of all ports in the CSI-RS; when the number of QCL-CSI-RS ports is 2, the estimation accuracy can be improved by averaging the estimated characteristics on the two ports.
  • the network side device and the terminal may fix the default QCL-RS as 2 ports, and the reference signals of the port 0 and port 1 of the default QCL-CSI-RS are respectively sent on the port 0 and port 1 of the CSI-RS, or Port 0 of the CSI-RS, Up, where N is the number of ports of the CSI-RS and N is a positive integer, preferably N is an even number, and N is greater than or equal to 2, Indicates rounding up.
  • the base station location relationship between the CSI-RS and the corresponding QCL-CSI-RS may be pre-agreed between the base station and the terminal, and the minimum K ports of the QCL-CSI-RS and the CSI-RS index are defaulted.
  • the period of the QCL-CSI-RS is greater than or equal to the period of the CSI-RS.
  • the CSI-RS and the corresponding QCL-CSI-RS are not located at least on the same time slot, where K represents the number of ports of the QCL-CSI-RS, and by default, the value of K is 1.
  • the network side device can reduce the overhead of QCL-CSI-RS related parameter configuration signaling.
  • the network side device after the network side device has configured the QCL-CSI-RS for the terminal, the network side device needs to avoid the RE occupied by the QCL-CSI-RS when performing data mapping.
  • the network side device can configure the ZP CSI-RS (zero) in order to avoid the complexity of the processing of the data resource demapping or the complexity of the data resource demapping based on the multiple signaling.
  • Power CSI-RS making The ZP CSI-RS covers the RE corresponding to the QCL-CSI-RS.
  • the terminal transmits the RE of the QCL-CSI-RS by default and is covered by the ZP-CSI-RS. It is no longer necessary to repeatedly consider the resource demapping problem based on the QCL-CSI-RS information.
  • the network side device configures a ZP CSI-RS (zero power CSI-RS), and the ZP CSI-RS does not cover the QCL-CSI-RS, but when the NZP CSI-RS is configured, one set is made.
  • the NZP CSI-RS (non zero power CSI-RS) includes the RE corresponding to the QCL-CSI-RS.
  • the network side device configures the ZP CSI-RS and the NZP CSI-RS
  • the terminal After receiving the QCL-CSI-RS configuration information number corresponding to the CSI-RS, the terminal additionally considers the rate matching of the solution data mapping separately for the QCL-CSI-RS.
  • the QCL-CSI-RS may be allowed to be on a part of the bandwidth.
  • the transmission band indication information of the QCL-CSI-RS is carried in the configuration indication information of the QCL-CSI-RS.
  • the network side device can flexibly select one or more small groups because the different small cell (or Pico, or transmission point (TP)) is transparent to the terminal in the UDN based on the cell virtualization configuration.
  • the cell jointly transmits data for the terminal.
  • different CSI-RS ports in each CSI-RS are transmitted on different small cells. Therefore, different ports of the same set of CSI-RS no longer satisfy the QCL relationship.
  • the QCL-CSI-RS port number information is carried, and all the CSI-RSs are implicitly indicated by the number of QCL-CSI-RS ports. Whether the port satisfies the QCL relationship.
  • the number of default QCL-CSI-RS ports of the network side device and the terminal is at most 2.
  • the number of QCL-CSI-RS ports is 1, all ports of the terminal default CSI-RS satisfy the QCL relationship.
  • the number of QCL-CSI-RS ports is 2, the reference signals of ports 0 and 1 of the default QCL-CSI-RS are respectively at port 0 of the CSI-RS. Sent on, where N is the number of ports of the CSI-RS.
  • the terminal When the number of QCL-CSI-RS ports is 2, the terminal defaults to the CSI-RS port. Meet QCL relationship, CSI-RS port The QCL relationship is satisfied, and the QCL relationship is not satisfied between the two groups by default.
  • At least the frequency offset and the frequency extension parameter in the channel large-scale parameter corresponding to the CSI-RS and the QCL-CSI-RS estimation may be supported when the network side device sends the terminal based on the two small cell joints. Thereby improving the channel estimation and detection performance in the case of joint transmission.
  • At least the frequency offset and frequency extension parameters in the channel large-scale parameters corresponding to the CSI-RS and QCL-CSI-RS estimation are supported only when the two small cell joints are used for terminal transmission.
  • the QCL-CSI-RS configuration indication information carries the port number information, and the port number implicitly indicates the QCL packet information in the CSI-RS, and is determined by the number of QCL packets of the CSI-RS, where
  • the QCL packet information in the CSI-RS means that when all the ports in the CSI-RS cannot satisfy the QCL characteristics, the ports can be grouped so that the ports in which the QCL characteristics are satisfied are located in the same group.
  • a plurality of QCL-CSI-RS ports may be supported, and port correspondence information of each port of the QCL-CSI-RS and the CSI-RS is included in the QCL-CSI-RS configuration indication information, where The port correspondence between each port of the QCL-CSI-RS and the CSI-RS indicates the CSI-RS port corresponding to each port in the QCL-CSI-RS port.
  • the QCL-CSI-RS configuration indication it is indicated which port of the CSI-RS is transmitted by each port of the QCL-CSI-RS. If the correspondence between each port of the QCL-CSI-RS and the CSI-RS port is: QCL-CSI-RS port 0 corresponds to CSI-RS port 0, and QCL-CSI-RS port 1 corresponds to CSI-RS port 4, indicating CSI -RS ports 0 to 3 satisfy the QCL relationship, and CSI-RS ports 4 to 7 are satisfied. QCL relationship; and QCL relationship is not satisfied between the two groups, and the reference signal of the terminal default QCL-CSI-RS port 0 is transmitted at CSI-RS port 0; QCL-CSI-RS port 1 is transmitted on CSI-RS port 4.
  • the QCL-CSI-RS is configured with 3 ports, it means that there are 3 groups of ports in the CSI-RS that satisfy the QCL relationship.
  • the QCL-CSI-RS configuration indication is performed, if the indicated QCL-CSI-RS ports and CSIs are specified.
  • the RS port correspondence is: QCL-CSI-RS port 0 corresponds to CSI-RS port 0, QCL-CSI-RS port 1 corresponds to CSI-RS port 4, and QCL-CSI-RS port 2 corresponds to CSI-RS port 6, the CSI-RS ports 0 to 3 satisfy the QCL relationship, the CSI-RS ports 4 to 5 satisfy the QCL relationship, the CSI-RS ports 6 to 7 satisfy the QCL relationship, and the QCL relationship is not satisfied between the three groups, and the terminal defaults.
  • the reference signal of QCL-CSI-RS port 0 is transmitted on CSI-RS port 0; QCL-CSI-RS port 1 is transmitted on CSI-RS port 4, and QCL-CSI-RS port 2 is transmitted on CSI-RS port 6.
  • the CSI-RS port of the terminal default CSI-RS that satisfies the QCL is an index consecutive CSI-RS port.
  • Port method for determining the k-th group satisfies the QCL CSI-RS for: determining QCL-CSI-RS ports k corresponding CSI-RS ports P k, is determined QCL-CSI-RS ports k + 1 corresponding to the CSI-RS ports P k +1 , the port of the k -th CSI-RS satisfying the QCL is P k ⁇ P k+1 -1, wherein when the port k is the maximum port index of the QCL-CSI-RS, the k-th group satisfies the CSI of the QCL -
  • the port of the RS is P k ⁇ N, where N is the number of ports of the CSI-RS.
  • the preferred embodiment provided by the preferred embodiment can more flexibly support the network side device to perform joint transmission based on multiple small cells. Provides flexibility for network-side devices to adjust to actual conditions.
  • At least the frequency offset and frequency extension parameters in the channel large-scale parameters corresponding to the CSI-RS and QCL-CSI-RS estimation are supported only when the two small cell joints are used for the terminal transmission.
  • multiple small cell joint transmissions may be supported, but the terminal is required to assume that the CSI-RS ports satisfying the QCL in the CSI-RS are index consecutive CSI-RS ports.
  • the QCL-CSI-RS configuration indication information carries the port number information, and the port number implicitly indicates the QCL packet information in the CSI-RS, and is determined by the QCL packet information of the CSI-RS, where CSI
  • the QCL packet information in the RS means that when all the ports in the CSI-RS cannot satisfy the QCL characteristics, the ports are grouped so that the ports in which the QCL characteristics are satisfied are located in the same group.
  • multiple QCL-CSI-RS ports may be supported and the CSI-RS port packets corresponding to each port of the QCL-CSI-RS are indicated.
  • the reference signal on the QCL-CSI-RS port k is sent on the port with the smallest CSI-RS port index in the kth QCL packet, and is in the QCL-CSI-RS.
  • the configuration indication information includes the correspondence between the ports of the QCL-CSI-RS and the ports of the CSI-RS.
  • the number of CSI-RS ports is 8; and QCL-CSI-RS is configured with 2 ports, which means that there are two groups of ports in the CSI-RS that satisfy the QCL relationship, and the configuration indicates that the QCL-CSI-RS ports and CSI-
  • the CSI-RS port packet corresponding to each QCL-CSI-RS port is explicitly indicated; for example, the QCL-CSI-RS port 0 corresponds to the CSI-RS port ⁇ 0123 ⁇ , and the QCL-CSI-RS port 1 Corresponding to the port ⁇ 4567 ⁇ of the CSI-RS, this means that the CSI-RS has two sets of ports respectively satisfying the QCL relationship, and the reference signal on the QCL-CSI-RS port is the CSI-RS port in the kth QCL packet.
  • the port with the smallest index is transmitted, that is, the reference signal of port 0 is transmitted on CSI-RS port 0, and the reference signal of port QCL-CSI-RS port 1 is transmitted on CSI-
  • different port grouping relationships of the terminal CSI-RSs can be indicated by explicit signaling, and the flexibility of QCL port configuration in the CSI-RS is further improved at the cost of partial additional signaling.
  • the terminal joints the QCL-CSI-RS and the corresponding CSI-RS to measure at least one of a frequency offset and a frequency expansion large-scale parameter on one or more QCL-CSI-RS ports.
  • the measured frequency offset parameter is fed back to the network side device.
  • the network side device Based on the feedback of the terminal, the network side device performs frequency offset calibration on the small cell or performs frequency offset and correction when transmitting the signal.
  • the terminal when performing frequency offset parameter feedback, directly feeds back to the node established by the radio resource control (RRC) connection, and the node sends the frequency offset calibration information to other nodes to be corrected.
  • RRC radio resource control
  • the RRC connection establishing node or the centralized control node notifies the relevant small cell to receive the feedback information of the terminal, and performs respective correction based on the frequency offset calibration information fed back by the terminal.
  • the terminal may periodically perform feedback through a physical uplink control channel (PUCCH), or perform non-period feedback based on a physical uplink shared channel (PUSCH) for non-periodical feedback or event triggering.
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • FIG. 5 is a structural block diagram of a configuration apparatus of a quasi-common position according to an embodiment of the present invention.
  • the quasi-common location configuration apparatus may include: an obtaining module 100, configured to acquire all CSI-RSs currently configured; A configuration module 102 is configured to separately configure a corresponding QCL-CSI-RS for each CSI-RS in all CSI-RSs, and configure all CSI-RSs and QCL-CSI-RSs corresponding to each set of CSI-RSs.
  • the QCL-CSI-RS is used to jointly estimate the channel large-scale feature parameter with the CSI-RS.
  • the device shown in FIG. 5 solves the problem that the related art lacks a solution for the large-scale feature parameter estimation of the coordinated UE in the UDN, thereby avoiding the CSI-RS being used for the frequency offset and the frequency extension estimation.
  • the noise impact can be directly used by the CSI-RS as a cell discovery signal.
  • the channel large-scale feature parameter may include, but is not limited to, at least one of the following:
  • Frequency offset parameter frequency extension parameter.
  • the apparatus may further include: a sending module 104, configured to send a corresponding QCL-CSI-RS on some or all of the ports used by the CSI-RS.
  • a sending module 104 configured to send a corresponding QCL-CSI-RS on some or all of the ports used by the CSI-RS.
  • the sending module 104 is configured to perform a sending operation according to one of the following manners: Mode 1: The QCL-CSI-RS supports only one port by default, and the reference signal of the QCL-CSI-RS port 0 is at the CSI-RS. Transmitted on port 0. Mode 2: When the number of CSI-RS ports is greater than or equal to 2, QCL-CSI-RS supports up to 2 ports by default and indicates the number of QCL-CSI-RS ports.
  • the reference signal of QCL-CSI-RS port 0 is transmitted on port 0 of CSI-RS; when the number of QCL-CSI-RS ports is 2, QCL-CSI-RS port 0
  • the reference signal and the reference signal of the QCL-CSI-RS port 1 are respectively transmitted on the port 0 and the port 1 of the CSI-RS; or the reference signal of the QCL-CSI-RS port 0 and the reference signal of the QCL-CSI-RS port 1 respectively Port 0 and port on the CSI-RS Up, where N is the number of ports of the CSI-RS and N is a positive integer; mode 3: QCL-CSI-RS supports only 2 ports by default, QCL-CSI-RS port 0 reference signal and QCL-CSI-RS The reference signal of port 1 is at port 0 and port of CSI-RS respectively.
  • the method is as follows:
  • the network side configures the number of ports of the QCL-CSI-RS and/or the correspondence between the ports of the QCL-CSI-RS and the ports of the CSI-RS, and determines to send the QCL-CSI-RS port reference according to the corresponding relationship.
  • the CSI-RS port of the signal sequence is as follows:
  • the apparatus may further include: a first indication module 106 configured to indicate parameter configuration information of the QCL-CSI-RS and parameter configuration information of the CSI-RS to the terminal, where QCL-CSI-
  • the RS parameter configuration information includes at least one of the following: resource configuration indication information, QCL-CSI-RS port number information, scrambling code ID information, subframe configuration information, relative subframe configuration information, mapping band indication information, and relative subframe configuration information. At least one of the following: a subframe offset or a slot offset of the QCL-CSI-RS with respect to the CSI-RS, and a period of the QCL-CSI-RS with respect to the CSI-RS.
  • the foregoing apparatus may further include: a second indication module 108, configured to send configuration indication information of the QCL-CSI-RS to the terminal, where the configuration indication information carries the QCL-CSI-RS
  • the port number information the port number information is used to implicitly indicate the QCL packet information in the CSI-RS, and is determined by the number of QCL packets of the CSI-RS, and the QCL packet information is used to indicate that all ports in the CSI-RS cannot be fully connected.
  • the ports are grouped and the ports that satisfy the QCL characteristics are divided into the same group.
  • the transmitting module 104 is further configured to transmit the reference signal on the QCL-CSI-RS port k on the port with the smallest CSI-RS port index in the kth packet, where k is a natural number.
  • the configuration indication information may further carry correspondence information between each port of the QCL-CSI-RS and each port of the CSI-RS.
  • the foregoing correspondence information may be one of the following:
  • the QCL-CSI-RS and the CSI-RS are transmitted on different orthogonal frequency division multiplexing symbols or on different time slots.
  • the time interval between transmitting the QCL-CSI-RS and transmitting the CSI-RS is less than a preset threshold.
  • the foregoing apparatus may further include: a first processing module 110, configured to pre-arrange a subframe offset of the CSI-RS and the QCL-CSI-RS with the terminal, and default QCL-CSI-RS and The K ports with the smallest CSI-RS index occupy the same resource location, where the subframe offset is not 0 and K is a positive integer.
  • a first processing module 110 configured to pre-arrange a subframe offset of the CSI-RS and the QCL-CSI-RS with the terminal, and default QCL-CSI-RS and The K ports with the smallest CSI-RS index occupy the same resource location, where the subframe offset is not 0 and K is a positive integer.
  • the QCL-CSI-RS and the CSI-RS adopt the same sequence.
  • the apparatus may further include: a second configuration module 112 configured to configure the ZP CSI-RS to enable the ZP CSI-RS to cover the RE corresponding to the QCL-CSI-RS, or by configuring The NZP CSI-RS is such that at least one of the NZP CSI-RSs covers the RE corresponding to the QCL-CSI-RS.
  • a second configuration module 112 configured to configure the ZP CSI-RS to enable the ZP CSI-RS to cover the RE corresponding to the QCL-CSI-RS, or by configuring The NZP CSI-RS is such that at least one of the NZP CSI-RSs covers the RE corresponding to the QCL-CSI-RS.
  • the QCL-CSI-RS is transmitted on a part of the available bandwidth, and carries the transmission band indication information of the QCL-CSI-RS in the configuration indication information.
  • the apparatus may further include: a receiving module 114 configured to receive frequency offset information fed back by the terminal; and a second processing module 116 configured to perform rephasing processing of the crystal oscillator based on the frequency offset information, or Frequency offset pre-calibration is performed when the CSI-RS and/or the demodulation reference signal DMRS are transmitted.
  • a receiving module 114 configured to receive frequency offset information fed back by the terminal
  • a second processing module 116 configured to perform rephasing processing of the crystal oscillator based on the frequency offset information, or Frequency offset pre-calibration is performed when the CSI-RS and/or the demodulation reference signal DMRS are transmitted.
  • FIG. 7 is a block diagram showing the structure of a quasi-common position determining apparatus according to an embodiment of the present invention.
  • the quasi-common location determining apparatus may include: a receiving module 200 configured to receive CSI-RS information configured by the network side device and QCL-CSI-RS configuration information configured for each set of CSI-RS;
  • a determining module 202 is configured to determine resource locations and reference signal sequence configuration information of the CSI-RS and the QCL-CSI-RS according to the CSI-RS information configured by the network side device and the QCL-CSI-RS configuration information corresponding to the CSI-RS.
  • An estimation module 204 configured to jointly estimate a channel large scale by using a CSI-RS reference signal received at a resource location of the CSI-RS and a QCL-CSI-RS reference signal received at a resource location of the QCL-CSI-RS Feature parameter information.
  • the channel large-scale feature parameter may include, but is not limited to, at least one of the following:
  • the foregoing apparatus may further include: a second determining module 206, where the reference signal set as the default QCL-CSI-RS port is sent on some or all of the ports used by the CSI-RS.
  • the second determining module 206 is configured to perform one of the following operations:
  • the reference signal of the QCL-CSI-RS port 0 is sent on the port 0 of the CSI-RS;
  • the QCL-CSI-RS supports up to 2 ports by default.
  • the reference signal of QCL-CSI-RS port 0 is sent on port 0 of the CSI-RS; when the number of QCL-CSI-RS ports is 2, QCL-
  • the reference signal of CSI-RS port 0 and the reference signal of QCL-CSI-RS port 1 are respectively transmitted on port 0 and port 1 of CSI-RS, or the reference signal of QCL-CSI-RS port 0 and QCL-CSI-RS.
  • the reference signal of port 1 is at port 0 and port of CSI-RS respectively. Up, where N is the number of ports of the CSI-RS and N is a positive integer.
  • the reference signals of the default QCL-CSI-RS port 0 and the reference signals of the QCL-CSI-RS port 1 are respectively in the CSI-RS.
  • Port 0 and port 1 are transmitted, or the reference signal of QCL-CSI-RS port 0 and the reference signal of QCL-CSI-RS port 1 are respectively at port 0 and port of CSI-RS. Send on.
  • the terminal determines to send the QCL-CSI-RS port reference according to the corresponding relationship.
  • the CSI-RS port of the signal sequence is indicated by the network side configuration and/or the network side notifies the correspondence between each port of the QCL-CSI-RS and the CSI-RS ports.
  • the receiving module 200 may include: a first acquiring unit (not shown) configured to receive configuration indication information of the QCL-CSI-RS from the network side device, where the configuration indication information carries the QCL- Port number information of the CSI-RS, the port number information is used to implicitly indicate the QCL packet information in the CSI-RS, and is determined by the number of QCL packets of the CSI-RS; the first determining unit (not shown) is set to The QCL grouping manner of the CSI-RS is determined according to the configuration indication information.
  • the first determining unit is configured to perform one of the following operations:
  • the number of ports of the default QCL-CSI-RS is less than or equal to two.
  • the receiving module 200 may include: a second acquiring unit (not shown in the figure) configured to acquire port number information of the QCL-CSI-RS and each port of the QCL-CSI-RS and each port of the CSI-RS Corresponding relationship information; a second determining unit (not shown) configured to determine a QCL packet condition of the CSI-RS and a CSI corresponding to a reference signal of each port of the QCL-CSI-RS according to the port number information and the correspondence relationship information -RS port.
  • a second acquiring unit (not shown in the figure) configured to acquire port number information of the QCL-CSI-RS and each port of the QCL-CSI-RS and each port of the CSI-RS Corresponding relationship information
  • a second determining unit (not shown) configured to determine a QCL packet condition of the CSI-RS and a CSI corresponding to a reference signal of each port of the QCL-CSI-RS according to the port number information and the correspondence relationship information -RS port.
  • the second determining unit is configured to perform one of the following operations:
  • the CSI-RS port that satisfies the QCL characteristic in the default CSI-RS is an index consecutive CSI-RS port, where k port method of determining the CSI-RS group satisfies the QCL property to: determine QCL-CSI-RS ports k corresponding to the CSI-RS ports P k and determining QCL-CSI-RS ports k + 1 corresponding to the CSI-RS ports P k +1 , the port of the k -th CSI-RS that satisfies the QCL characteristic is P k -P k+1 -1; when the QCL-CSI-RS port k is the maximum port index of the QCL-CSI-RS, then the kth The port of the CSI-RS that satisfies the QCL characteristic is P k to N, where N is the number of ports of the CSI-RS, k is a natural number, and N is a positive
  • the reference signal on the default QCL-CSI-RS port k is performed on the port with the smallest CSI-RS port index in the kth packet. send.
  • the apparatus may further include: a third determining module 208, wherein the resource element RE corresponding to the QCL-CSI-RS set to be transmitted by default is covered by the zero power ZP CSI-RS.
  • the first determining module 202 is configured to determine, according to a pre-agreed manner or by means of signaling, that the QCL configuration information may include, but is not limited to, at least one of the following:
  • mapping band indication information
  • the foregoing relative subframe configuration information may include at least one of: a subframe offset or a slot offset of the QCL-CSI-RS with respect to the CSI-RS, and a period of the QCL-CSI-RS with respect to the CSI-RS.
  • the apparatus may further include: a feedback module 210, configured to: after estimating the frequency offset according to the QCL-CSI-RS reference signal and the CSI-RS reference signal, and feeding back the frequency offset estimation result to the network Side equipment.
  • a feedback module 210 configured to: after estimating the frequency offset according to the QCL-CSI-RS reference signal and the CSI-RS reference signal, and feeding back the frequency offset estimation result to the network Side equipment.
  • FIG. 9 is a schematic structural diagram of a system for QCL enhancement in cell virtualization according to a preferred embodiment of the present invention.
  • the system may include, but is not limited to, a terminal and a base station, where the base station may include: a QCL-CSI-RS generating unit and a signaling configuration unit.
  • the base station may include: a QCL-CSI-RS generating unit and a signaling configuration unit.
  • a frequency offset calibration or pre-correction unit may also be included. The specific functions of the interaction between the various units are described below:
  • the QCL-CSI-RS generating unit is configured to generate a QCL-CSI-RS for each set of CSI-RSs, wherein the QCL-CSI-RS is used for jointly estimating a large-scale feature parameter of the channel with the CSI-RS, and the large-scale characteristic parameter of the channel may be Including but not limited to: frequency offset parameters, frequency extension parameters.
  • the QCL-CSI-RS When the QCL-CSI-RS is transmitted, it is transmitted on some or all of the same ports as the CSI-RS.
  • the QCL-CSI-RS When the QCL-CSI-RS is transmitted, it is sent on some or all of the same ports as the CSI-RS, and may further include at least one of the following methods:
  • the QCL-CSI-RS supports only one port by default, and the reference signal of the QCL-CSI-RS port 0 is sent on the CSI-RS port 0.
  • the QCL-CSI-RS supports up to 2 ports by default, and when the number of QCL-CSI-RS ports is 1, the reference signal of the QCL-CSI-RS port 0 is sent on the CSI-RS port 0. When the number of QCL-CSI-RS ports is 2, the reference signals of ports 0 and 1 of the QCL-CSI-RS are respectively sent on ports 0 and 1 of the CSI-RS; or at port 0 of the CSI-RS, Sent on, where N is the number of ports of the CSI-RS.
  • QCL-CSI-RS supports only 2 ports by default, and the reference signals of ports 0 and 1 of QCL-CSI-RS are respectively sent on ports 0 and 1 of CSI-RS; or port 0 of CSI-RS. , Sent on, where N is the number of ports of the CSI-RS.
  • the base station configures the QCL-CSI-RS parameter indication information for the terminal, and the QCL-CSI-RS parameter indication information may include at least one of the following configuration information:
  • the port number information may also be carried in the QCL-CSI-RS parameter indication information.
  • the number of ports implicitly indicates the QCL packet information in the CSI-RS, and is determined by the QCL packet information of the CSI-RS; wherein the QCL packet information in the CSI-RS means that all the ports in the CSI-RS cannot satisfy the QCL.
  • the ports are grouped so that the ports in which the QCL characteristics are met are in the same group.
  • the QCL-CSI-RS configuration indication information may further include correspondence information between the QCL-CSI-RS ports and the CSI-RS ports.
  • the QCL-CSI-RS When transmitting the QCL-CSI-RS, transmitting on some or all of the same ports as the CSI-RS, which may further include: a reference signal on the QCL-CSI-RS port k, a CSI-RS port index in the kth packet Send on the smallest port.
  • the QCL-CSI-RS configuration indication information may further include: the correspondence between the ports of the QCL-CSI-RS and the ports of the CSI-RS is any one of the following methods:
  • the QCL-CSI-RS and the CSI-RS are not at least not transmitted on the same OFDM symbol or the same time slot, and the time interval between the preferential QCL-CSI-RS and the corresponding CSI-RS is greater than or equal to the first predetermined. Threshold. The time interval between the QCL-CSI-RS and the corresponding CSI-RS is less than or equal to a second preset threshold.
  • the subframe offset and/or period of the CSI-RS and the QCL-CSI-RS may be pre-agreed between the base station and the terminal, and the default QCL-CSI-RS and the K port with the smallest CSI-RS index occupy the same resource location.
  • the subframe offset is not 0, and the transmission period of the QCL-CSI-RS is 1/2/4/8 times of the CSI-RS transmission period.
  • the QCL-CSI-RS can use the same sequence as the corresponding CSI-RS.
  • the ZP CSI-RS covers the RE corresponding to the QCL-CSI-RS.
  • the base station when configuring the NZP CSI-RS, causes at least one of the NZP CSI-RSs to cover the QCL-CSI-RS.
  • the QCL-CSI-RS is transmitted on a part of the bandwidth, and carries the transmission band indication information of the QCL-CSI-RS in the configuration indication information.
  • the signaling configuration unit is configured to configure QCL-CSI-RS parameter information generated for each set of CSI-RSs to the terminal.
  • the frequency offset calibration or pre-correction unit is responsible for re-phase locking the crystal according to the frequency offset information fed back by the terminal or performing frequency offset pre-calibration when transmitting the CSI-RS and/or the DMRS.
  • the terminal may include: a signaling reception parsing unit, a parameter estimating unit, a correction, and a parameter generating unit.
  • the method further includes: a parameter feedback unit.
  • the signaling receiving and parsing unit is responsible for receiving CSI-RS information configured by the network side device and QCL-CSI-RS configuration information configured for each set of CSI-RS.
  • the terminal may send the default QCL-CSI-RS on the same part or all ports as the CSI-RS according to the agreement with the network side device.
  • the terminal When there is no configuration information of the number of QCL-CSI-RS ports and the CSI-RS port relationship, the terminal defaults to the maximum number of ports of the QCL-CSI-RS.
  • the terminal default QCL-CSI-RS reference signal is sent on the CSI-RS port 0.
  • the terminal When the QCL-CSI-RS supports two ports, if the number of QCL-CSI-RS ports is 1, the terminal transmits the reference signal of the QCL-CSI-RS port 0 by default on the CSI-RS port 0. If the number of QCL-CSI-RS ports is 2, the terminal defaults that the reference signals of ports 0 and 1 of the QCL-CSI-RS are respectively sent on ports 0 and 1 of the CSI-RS; or at ports 0, N of the CSI-RS. Sent on /2, where N is the number of ports of the CSI-RS.
  • the terminal acquires the port number information of the QCL-CSI-RS, and the terminal determines the QCL grouping mode of the CSI-RS according to the QCL-CSI-RS port number information.
  • the terminal defaults to the QCL relationship of all ports of the CSI-RS; when the number of QCL-CSI-RS ports is 2, the port defaults to all the ports of the CSI-RS.
  • the terminal receives the port number information of the QCL-CSI-RS and the port correspondence information between the ports of the QCL-CSI-RS and the CSI-RS, and the terminal may use the QCL-CSI-RS port number information and the QCL-CSI-RS ports.
  • the port correspondence information with the CSI-RS determines the QCL packet condition of the CSI-RS and the port of the CSI-RS corresponding to each port reference signal of the QCL-CSI-RS. specific:
  • the CSI-RS of the terminal default CSI-RS satisfies the QCL-RS.
  • the port is an indexed continuous CSI-RS port.
  • Port method for determining the k-th group satisfies the QCL CSI-RS for: determining QCL-CSI-RS ports k corresponding CSI-RS ports P k, is determined QCL-CSI-RS ports k + 1 corresponding to the CSI-RS ports P k +1 , the port of the kth group satisfying the CSI-RS of the QCL is P k ⁇ P k+1 -1, wherein when the port k is the maximum port index of the QCL-CSI-RS, the kth group satisfies the QCL
  • the port of the CSI-RS is P k to N, where N is the number of ports of the CSI-RS.
  • the terminal When the port correspondence information of each port of the QCL-CSI-RS and the CSI-RS indicates the port group information of each CSI-RS that satisfies the QCL, the terminal defaults the reference signal on the QCL-CSI-RS port k.
  • the k-th packet is sent on the port with the smallest CSI-RS port index.
  • the RE of the terminal default transmission QCL-CSI-RS is covered by the ZP-CSI-RS; or the default QCL-CSI-RS of the terminal is covered by at least one of the configured NZP CSI-RSs.
  • the terminal determines at least one of the following parameters of the QCL-CSI-RS according to a pre-agreed manner or by means of signaling resolution: a transmission period, a subframe offset, a resource configuration, and a reference signal initialization parameter.
  • the parameter estimation unit is configured to perform estimation of at least one of the large-scale parameters of the frequency offset and the frequency extension by using the CSI-RS and the corresponding QCL-CSI-RS according to the received configuration information.
  • the correction and parameter generation unit is responsible for performing frequency offset correction according to the frequency offset parameter estimated by the parameter estimation unit, and/or generating a filter coefficient for channel estimation according to the frequency extension parameter estimated by the parameter estimation unit.
  • the feedback unit is responsible for feeding back the frequency offset parameter to the base station.
  • the function of the frequency offset correction function in the terminal correction and parameter generation unit and the feedback unit feeding back the frequency offset parameter to the base station may be selected.
  • the above embodiments achieve the following technical effects (it is required that the effects are achievable by some preferred embodiments): the technical solutions provided by the embodiments of the present invention can be solved.
  • the CSI-RS is poorly affected by noise when used for frequency offset and frequency extension estimation. It can also solve the problem that during the cell virtualization process, when JT transmission is performed between cells, different CSI-RS ports are not.
  • the CSI-RS can be directly used as the cell discovery signal, that is, the QC-CSI-RS can be configured to enable the CSI-RS to support the estimation of the frequency offset and the frequency extension in the cell discovery process;
  • the QCL-CSI-RS and the CSI-RS are transmitted on the same port, it is equivalent to increasing the density of some or all of the port CSI-RS.
  • the resource configuration as the QCL-CSI-RS can be flexibly selected according to the CSI-RS usage in the network.
  • the DMRS channel estimation parameters may also be generated according to the delay, frequency offset, delay spread, and frequency extension obtained by different port estimation of the QCL-CSI-RS.
  • 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 steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the configuration, the determining method, and the device for the quasi-common location have the following beneficial effects:
  • the CSI-RS can be directly used as the cell discovery signal, that is, the QCL-CSI-RS is configured on the one hand.
  • the CSI-RS can support the estimation of frequency offset and frequency extension in the cell discovery process; on the other hand, since the QCL-CSI-RS and the CSI-RS are transmitted on the same port.
  • the resource configuration as the QCL-CSI-RS can be flexibly selected according to the CSI-RS usage in the network.
  • the DMRS channel estimation parameters may also be generated according to the delay, frequency offset, delay spread, and frequency extension obtained by different port estimation of the QCL-CSI-RS.

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif d'attribution et de détermination de quasi-colocation. Le procédé consiste à : acquérir tous les CSI-RS actuellement attribués; attribuer respectivement un QCL-CSI-RS correspondant à chaque ensemble de CSI-RS de la pluralité de CSI-RS, le QCL-CSI-RS étant utilisé pour estimer un paramètre de caractéristique de canal à grande échelle en lien avec le CSI-RS; et attribuer tous les CSI-RS et le QCL-CSI-RS correspondant à différents ensembles de CSI-RS, à un terminal. La solution technique fournie dans la présente invention peut empêcher qu'un CSI-RS ne subisse l'influence du bruit lorsqu'il est utilisé pour estimer un décalage de fréquence et élargissement de fréquence. Le CSI-RS peut alors être directement utilisé comme signal de découverte de cellule.
PCT/CN2015/077321 2014-09-05 2015-04-23 Procédé et dispositif d'attribution et de détermination de quasi-colocation Ceased WO2016033978A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410452074.9A CN105471559B (zh) 2014-09-05 2014-09-05 准共位置的配置、确定方法及装置
CN201410452074.9 2014-09-05

Publications (1)

Publication Number Publication Date
WO2016033978A1 true WO2016033978A1 (fr) 2016-03-10

Family

ID=55439090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/077321 Ceased WO2016033978A1 (fr) 2014-09-05 2015-04-23 Procédé et dispositif d'attribution et de détermination de quasi-colocation

Country Status (2)

Country Link
CN (1) CN105471559B (fr)
WO (1) WO2016033978A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170288743A1 (en) * 2016-03-31 2017-10-05 Samsung Electronics Co., Ltd Method and apparatus for transmitting and receiving reference signals in wireless communication
CN109565521A (zh) * 2016-08-12 2019-04-02 高通股份有限公司 用于新无线电技术中的信道状态信息获取的技术
CN109982242A (zh) * 2019-03-29 2019-07-05 深圳市九洲电器有限公司 一种室内定位方法、装置、基站及系统
CN110535592A (zh) * 2018-09-28 2019-12-03 中兴通讯股份有限公司 一种信息传输的方法及相关设备
TWI679908B (zh) * 2017-11-24 2019-12-11 大陸商電信科學技術研究院有限公司 資料傳輸、資訊確定方法及裝置、電腦存儲介質
CN111106914A (zh) * 2018-11-12 2020-05-05 维沃移动通信有限公司 确定控制资源集的准共址的方法、终端和存储介质
CN111148232A (zh) * 2018-11-02 2020-05-12 维沃移动通信有限公司 信息传输方法及通信设备
CN111585706A (zh) * 2017-08-11 2020-08-25 华为技术有限公司 利用单端口csi-rs配置传输时间和频率跟踪信号的系统和方法
US20210250158A1 (en) * 2020-02-07 2021-08-12 Qualcomm Incorporated Open loop clutter interference mitigation
CN115942489A (zh) * 2017-03-21 2023-04-07 三星电子株式会社 无线系统中用于参考信号的指示的方法和装置
US11888570B2 (en) 2017-03-23 2024-01-30 Ntt Docomo, Inc. User terminal and radio communication method
EP4425856A3 (fr) * 2016-07-28 2024-11-20 LG Electronics Inc. Procédé de réception de signal de référence dans un système de communication sans fil et dispositif associé

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107342840B (zh) * 2016-04-29 2021-09-03 中兴通讯股份有限公司 准共位置类型的处理方法及装置
US10039076B2 (en) * 2016-08-22 2018-07-31 Qualcomm Incorporated Declaring quasi co-location among multiple antenna ports
WO2018059571A1 (fr) * 2016-09-30 2018-04-05 中兴通讯股份有限公司 Procédé et dispositif pour représenter une configuration de paramètre de quasi-colocalisation, et appareil d'émission et de réception
CN107888266B (zh) * 2016-09-30 2023-09-12 华为技术有限公司 一种准共址指示信息指示方法及设备
CN110401521B (zh) 2016-09-30 2020-11-06 中兴通讯股份有限公司 表征准共位置参数配置的方法和装置、发射及接收设备
CN108024274B (zh) * 2016-11-04 2021-06-15 华为技术有限公司 一种无线通信数据传输方法、装置和系统
WO2018082696A1 (fr) * 2016-11-04 2018-05-11 华为技术有限公司 Procédé et dispositif basés sur un livre de codes, pour un retour d'informations d'état de canal
CN118158722A (zh) 2017-01-06 2024-06-07 华为技术有限公司 一种信道状态信息测量的配置方法及相关设备
CN108400852B (zh) 2017-02-06 2020-10-30 电信科学技术研究院 一种大尺度信道参数的指示、确定方法、基站及终端
CN110291744B (zh) * 2017-02-16 2022-05-24 高通股份有限公司 确定在平滑预编码下的dmrs平均延迟和延迟扩展的方法
CN108631984B (zh) * 2017-03-24 2022-11-15 中兴通讯股份有限公司 一种信息配置方法及装置
US10925066B2 (en) * 2017-05-05 2021-02-16 Apple Inc. Quasi co-location (QCL) for antenna ports in new radio (NR)
CN112152687B (zh) * 2017-06-16 2024-04-09 华为技术有限公司 通信方法、终端及网络设备
CN109391311A (zh) * 2017-08-10 2019-02-26 株式会社Ntt都科摩 一种用于波束管理的参考信号发送与接收方法及装置
CN109429338B (zh) * 2017-08-24 2024-03-05 株式会社电装 频带指示方法、频带确定方法、发射端设备和接收端设备
BR112019026784A2 (pt) * 2017-09-14 2020-06-30 Guangdong Oppo Mobile Telecommunications Corp., Ltd. método e aparelho de processamento de sinal
US20210194741A1 (en) * 2017-11-10 2021-06-24 Chenxi HAO Improved channel state information reference signal generation
CN110034872B (zh) * 2018-01-11 2021-09-07 维沃移动通信有限公司 资源与qcl的关联关系指示方法、确定方法及相关设备
CN113055147A (zh) * 2018-02-11 2021-06-29 华为技术有限公司 准共址信息的确定方法、装置及设备
CN109302272B (zh) * 2018-02-13 2022-06-03 中兴通讯股份有限公司 Csi报告的发送、接收方法及装置、电子装置
CN110351052B (zh) 2018-04-04 2020-08-28 维沃移动通信有限公司 信道和信号的传输方法及通信设备
WO2019191924A1 (fr) * 2018-04-04 2019-10-10 Oppo广东移动通信有限公司 Procédé et dispositif de détermination et de configuration d'informations, et support de stockage informatique
CN110351058B (zh) * 2018-04-04 2021-10-22 华为技术有限公司 一种信号传输方法及通信设备
WO2020087483A1 (fr) * 2018-11-02 2020-05-07 Qualcomm Incorporated Mesure de csi avec une configuration qcl différente pour une même ressource de csi-rs
CN111510267B (zh) * 2019-01-31 2021-12-14 成都华为技术有限公司 波束指示的方法和通信装置
CN111769900B (zh) * 2019-04-01 2021-08-27 大唐移动通信设备有限公司 一种信道状态信息参考信号的调度方法及装置
CN115174317A (zh) * 2021-04-06 2022-10-11 索尼集团公司 用于无线通信的电子设备、无线通信方法以及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013119073A1 (fr) * 2012-02-11 2013-08-15 엘지전자 주식회사 Procédé permettant de signaler des informations d'états de canaux, procédé de support associé et appareil pour lesdits procédés
CN103684676A (zh) * 2012-09-26 2014-03-26 中兴通讯股份有限公司 天线端口位置关系的通知和确定方法、系统及装置
WO2014070311A1 (fr) * 2012-11-02 2014-05-08 Qualcomm Incorporated Gestion de ressource epdcch et de quasi-co-localisation en lte
CN103973399A (zh) * 2013-01-31 2014-08-06 中兴通讯股份有限公司 一种生成载波配置信息的方法及网络侧设备及用户设备
WO2014129716A1 (fr) * 2013-02-21 2014-08-28 Lg Electronics Inc. Procédé et appareil permettant de configurer un qcl entre des ports d'antenne pour le mode massive mimo dans un système de communication sans fil

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102468926B (zh) * 2010-11-09 2015-05-20 中兴通讯股份有限公司 一种下行控制信息的配置方法、网络设备及接入节点
CN103687010B (zh) * 2012-08-30 2017-07-04 电信科学技术研究院 一种传输参考信号的方法、装置及系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013119073A1 (fr) * 2012-02-11 2013-08-15 엘지전자 주식회사 Procédé permettant de signaler des informations d'états de canaux, procédé de support associé et appareil pour lesdits procédés
CN103684676A (zh) * 2012-09-26 2014-03-26 中兴通讯股份有限公司 天线端口位置关系的通知和确定方法、系统及装置
WO2014070311A1 (fr) * 2012-11-02 2014-05-08 Qualcomm Incorporated Gestion de ressource epdcch et de quasi-co-localisation en lte
CN103973399A (zh) * 2013-01-31 2014-08-06 中兴通讯股份有限公司 一种生成载波配置信息的方法及网络侧设备及用户设备
WO2014129716A1 (fr) * 2013-02-21 2014-08-28 Lg Electronics Inc. Procédé et appareil permettant de configurer un qcl entre des ports d'antenne pour le mode massive mimo dans un système de communication sans fil

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170288743A1 (en) * 2016-03-31 2017-10-05 Samsung Electronics Co., Ltd Method and apparatus for transmitting and receiving reference signals in wireless communication
US12052069B2 (en) 2016-03-31 2024-07-30 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving reference signals in wireless communication
US11038557B2 (en) * 2016-03-31 2021-06-15 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving reference signals in wireless communication
EP4425856A3 (fr) * 2016-07-28 2024-11-20 LG Electronics Inc. Procédé de réception de signal de référence dans un système de communication sans fil et dispositif associé
CN109565521A (zh) * 2016-08-12 2019-04-02 高通股份有限公司 用于新无线电技术中的信道状态信息获取的技术
EP3497918A4 (fr) * 2016-08-12 2020-06-17 Qualcomm Incorporated Techniques d'acquisition d'informations d'état de canal dans une nouvelle technologie radio
US11018745B2 (en) 2016-08-12 2021-05-25 Qualcomm Incorporated Techniques for channel state information acquisition in new radio technology
CN115942489A (zh) * 2017-03-21 2023-04-07 三星电子株式会社 无线系统中用于参考信号的指示的方法和装置
US11888570B2 (en) 2017-03-23 2024-01-30 Ntt Docomo, Inc. User terminal and radio communication method
CN111585706B (zh) * 2017-08-11 2021-05-04 华为技术有限公司 利用单端口csi-rs配置传输时间和频率跟踪信号的系统和方法
US11711180B2 (en) 2017-08-11 2023-07-25 Futurewei Technologies, Inc. System and method for communicating time and frequency tracking signals using configurations for one port CSI-RSS
CN111585706A (zh) * 2017-08-11 2020-08-25 华为技术有限公司 利用单端口csi-rs配置传输时间和频率跟踪信号的系统和方法
US10992442B2 (en) 2017-08-11 2021-04-27 Futurewei Technologies, Inc. System and method for communicating time and frequency tracking signals using configurations for one port CSI-RSs
TWI679908B (zh) * 2017-11-24 2019-12-11 大陸商電信科學技術研究院有限公司 資料傳輸、資訊確定方法及裝置、電腦存儲介質
US11937234B2 (en) 2018-09-28 2024-03-19 Zte Corporation Transmission configuration indication transmission method and devices
CN110535592A (zh) * 2018-09-28 2019-12-03 中兴通讯股份有限公司 一种信息传输的方法及相关设备
CN111148232A (zh) * 2018-11-02 2020-05-12 维沃移动通信有限公司 信息传输方法及通信设备
US12192999B2 (en) 2018-11-02 2025-01-07 Vivo Mobile Communication Co., Ltd. Information transmission method and communications device
CN111106914A (zh) * 2018-11-12 2020-05-05 维沃移动通信有限公司 确定控制资源集的准共址的方法、终端和存储介质
CN111106914B (zh) * 2018-11-12 2022-06-07 维沃移动通信有限公司 确定控制资源集的准共址的方法、终端和存储介质
CN109982242A (zh) * 2019-03-29 2019-07-05 深圳市九洲电器有限公司 一种室内定位方法、装置、基站及系统
US11764935B2 (en) * 2020-02-07 2023-09-19 Qualcomm Incorporated Open loop clutter interference mitigation
US20210250158A1 (en) * 2020-02-07 2021-08-12 Qualcomm Incorporated Open loop clutter interference mitigation

Also Published As

Publication number Publication date
CN105471559A (zh) 2016-04-06
CN105471559B (zh) 2020-01-14

Similar Documents

Publication Publication Date Title
CN105471559B (zh) 准共位置的配置、确定方法及装置
US10912044B2 (en) Method and apparatus for measurement reference signal and synchronization
CN110268667B (zh) 报告无线通信系统中的信道状态信息的方法及其装置
CN113890670B (zh) 广播信道传输和解调
CN110892771B (zh) 波束故障恢复请求
CN111052840B (zh) 波束故障恢复装置和方法
CN105122703B (zh) 接收用于在用户设备之间直接通信的同步信息的方法及其的装置
US11303412B2 (en) Methods and apparatuses for downlink tracking reference signal configuration
CN103650368B (zh) 信道状态信息发射方法和用户设备以及信道状态信息接收方法和基站
US9907066B2 (en) Method for receiving discovery reference signal by terminal in wireless communication system and device therefor
CN103684676B (zh) 天线端口位置关系的通知和确定方法、系统及装置
KR101901949B1 (ko) 무선 통신 시스템에서 동기 신호를 송수신하는 방법 및 이를 수행하는 장치
KR20190122876A (ko) 무선 시스템에서 기준 신호의 지시 방법 및 장치
CN113302869A (zh) 用于多传输点（trp）的物理下行链路共享信道（pdsch）资源映射
CN111066366A (zh) 波束故障恢复装置和方法
CN110692210A (zh) 无线通信系统中减少csi-rs传输开销的方法和装置
US11930501B2 (en) Terminal, communication method, base station, and system for receiving synchronization and/or broadcast signals in a given transmission time interval
WO2013119096A1 (fr) Procédé et appareil permettant de réaliser des mesures sur des cellules voisines dans des systèmes de communication sans fil
JP6620820B2 (ja) 送信パターン構成および信号検出のための方法および装置
US20130195019A1 (en) Initial access in cells without common reference signals
CN113475104B (zh) 用于lte-nr频谱共享的mbsfn子帧使用
US20250379694A1 (en) Methods and apparatuses for downlink tracking reference signal configuration

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15837436

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15837436

Country of ref document: EP

Kind code of ref document: A1