CN102694622A - Signaling informing method and system of measurement set - Google Patents
Signaling informing method and system of measurement set Download PDFInfo
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Abstract
The invention discloses a signaling informing method and system of a multipoint cooperative measurement set. The signaling informing method comprises the following steps: a network side configures a cooperative measurement set channel state information reference signal configuring signaling through a non-zero power channel state information reference signal configuring signaling, and/or zero power channel state information state information reference signal configuring signal, and/or bitmap sequence indication signaling and informs a multipoint cooperative measurement set of a receiving side; and the receiving side determines the size of the multipoint cooperative measurement set according to the configured cooperative measurement set channel state information reference signal configuring information, and measures state information of a plurality of configured channels. According to the invention, in an LTE (Long Term Evolution) R11 state, under the condition that the introduced multiple remote radio frequency heads have the same cell IDs, the signaling informing of the multipoint cooperative measurement set is realized.
Description
Technical Field
The present invention relates to a Long term evolution Advanced system (LTE-Advanced, Long term evolution Advanced system), and in particular, to a signaling notification method and system for implementing a coordinated multi-point measurement set based on a channel state information reference signal.
Background
In LTE Release8/9, the concept of Common Reference Signal (CRS) is introduced for the purpose of measuring the quality of the channel and demodulating the received data symbols. In this way, User Equipment (UE) may perform channel measurement through the CRS, which provides a basis for the UE to perform cell reselection and handover to the target cell. And when the UE is in a connection state to measure the channel quality, when the interference level is higher, the physical layer can disconnect the UE through a radio link connection failure signaling related to a higher layer.
In LTE R10, to further improve the cell average spectrum utilization, the cell edge spectrum utilization, and the throughput of each UE, two types of reference signals are defined: the UE includes a Channel information reference signal (CSI-RS) and a demodulation reference signal (DMRS), wherein the CSI-RS is used for measuring a Channel, and a Precoding Matrix Index (PMI), a Channel quality information Indicator (CQI) and a Rank Indicator (RI) that the UE needs to feed back to the base station eNodeB can be calculated through the measurement of the CSI-RS. The distribution of the CSI-RS in the time domain and the frequency domain is sparse, and it is required to ensure that only one pilot density of the CSI-RS per antenna port of the serving cell is contained in one Resource Block (RB), and in the time domain, a multiple of 5ms is required as a period of the CSI-RS. The sparse CSI-RS may support eNodeB 8 antenna configuration and advantageously supports neighbor cell measurement configuration. The 3GPP 61bis standard conference specifies pilot mapping patterns among different cells and different antennas of the same cell through the pilot mapping patterns of CSI-RS.
In the existing discussion, for signaling of the coordinated multipoint measurement set, the signaling is mainly considered to be performed by means of cell identification. However, in the LTE R11 phase, multiple Remote Radio Heads (RRHs) may be introduced to have the same cell ID, and if the previous notification manner is used, the receiving side cannot distinguish the time/frequency positions of different RRH channel state information reference signals, thereby causing erroneous measurement, and no implementation scheme for signaling notification of an RRH measurement set is currently provided.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a method and a system for signaling to implement a coordinated multi-point measurement set, which can implement signaling to implement the coordinated multi-point measurement set when multiple RRHs are introduced to have the same cell ID in LTE R11 phase.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method of signaling to implement a measurement set, comprising:
the network side configures the coordinated measurement set channel state information reference signal configuration signaling through non-zero power channel state information reference signal configuration signaling, and/or Bitmap (Bitmap) sequence indication signaling, so as to inform the receiving side of a multipoint coordinated measurement set.
The method further comprises the following steps:
and the receiving side determines the size of the multipoint cooperative measurement set according to the number of the received cooperative measurement set channel state information reference signal configuration signaling, and measures a plurality of configured channel state information.
The cooperative measurement set channel state information reference signal configuration signaling comprises a plurality of channel state information reference signal configuration signaling with non-zero power.
The plurality of non-zero power channel state information reference signal configuration signaling has a different plurality of periodic configuration and subframe offset configuration signaling.
The channel state information reference signal configuration signaling of a plurality of nonzero powers of all cells except the serving cell or in the cooperative measurement set has the same periodic configuration and subframe offset configuration signaling.
And the configured period and subframe offset signaling is implicitly notified by the period and subframe offset configuration information of a serving cell zero-power or non-zero-power channel state information reference signal.
The channel state information reference signal configuration signaling with non-zero power at least comprises: the antenna port number configuration information of the channel state information reference signal, the time/frequency position information of the channel state information reference signal in one subframe, the period and the subframe offset information are selected from one or any combination.
The method also comprises the following steps: and acquiring the configuration signaling of the channel state information reference signal of the cooperative measurement set by combining the configuration signaling of the zero-power channel state information reference signal of the service cell.
The method further comprises the following steps: and acquiring the channel state information reference signal configuration signaling of the cells except the serving cell in the multipoint cooperation set through the channel state information reference signal configuration signaling of the zero power of the combined serving cell.
The informing of the measurement set of the multipoint coordination at the receiving side comprises: and the time/frequency position information of the channel state reference signals of the cells except the service cell or all the cells in the cooperative measurement set adopts 3 bits, and informs the receiving side of the time/frequency position configuration information of the channel state information reference signals needing to be measured in one subframe.
The informing of the measurement set of the multipoint coordination at the receiving side comprises: and configuring the period and subframe offset information separately or configuring the uniform period and subframe offset information for the channel state reference signals of the cells except the serving cell or all the cells in the cooperation set in each cooperation measurement set.
When the cells except the serving cell in each cooperative measurement set or all the cells in the cooperative set are configured with uniform period and subframe offset information, the configured period and subframe offset information is implicitly notified through the zero-power or non-zero-power channel state information reference signal period and subframe offset of the serving cell.
The network side configuring the cooperative measurement set channel state information reference signal configuration signaling comprises:
indicating group information by using a bitmap sequence with 16 bits, wherein the total of 16 groups and each group of 3 bits indicate time/frequency position configuration information of channel state information reference signals of cells except a service cell in the cooperative measurement set or all cells in the cooperative set in one subframe; or,
group information is indicated by using 8-bit bitmap sequences, and total 8 groups and 5 bits of each group indicate time/frequency position configuration information of all cell channel state information reference signals in a subframe in cells except a serving cell or all cell channel state information reference signals in the cooperation measurement set.
Configuring cycle and subframe bias information for all the channel state information reference signal configurations in the cooperative measurement set respectively; or,
configuring uniform period and subframe bias information for all the channel state information reference signals configured as the cells except the serving cell in the cooperative measurement set or all the cells in the cooperative set; or,
and configuring uniform period and subframe offset information for all the channel state information reference signals configured as the cells except the serving cell in the cooperative measurement set or all the cells in the cooperative set, wherein the period and subframe offset information is implicitly notified by the zero-power or non-zero-power channel state information reference signal period and subframe offset of the serving cell.
A signaling system for implementing coordinated multipoint measurement set comprises at least a network side and a receiving side, wherein,
the network side is used for configuring the coordinated measurement set channel state information reference signal configuration signaling and informing the receiving side of a multipoint coordinated measurement set through a non-zero power channel state information reference signal configuration signaling, and/or a Bitmap sequence indication signaling;
and the receiving side is used for determining the size of the multipoint cooperative measurement set according to the number of the configured cooperative measurement set channel state information reference signal configuration signaling, and measuring a plurality of configured channel state information.
According to the technical scheme provided by the invention, the method comprises the steps that a network side configures a coordinated measurement set channel state information reference signal configuration signaling and informs a receiving side of a multipoint coordinated measurement set through a non-zero power channel state information reference signal configuration signaling, a zero power channel state information reference signal configuration signaling and/or a Bitmap sequence indication signaling; and the receiving side determines the size of the multipoint cooperative measurement set according to the number of the configured cooperative measurement set channel state information reference signal configuration signaling, and measures a plurality of configured channel state information. By the invention, under the condition that multiple RRHs have the same cell ID in the LTE R11 stage, the signaling of the coordinated multi-point measurement set is realized. It should be noted that the cell in this patent may refer to a cell with an independent cell ID, and may also refer to an RRH.
Drawings
Fig. 1 is a flowchart of a method for implementing signaling of a coordinated multipoint measurement set according to the present invention;
FIG. 2 is a schematic diagram illustrating a system for signaling a coordinated multipoint measurement set according to the present invention;
FIG. 3 is a diagram illustrating the time/frequency location of a common (Normal) CP 16-bit bitmap sequence according to the present invention;
FIG. 4 is a diagram of another exemplary time/frequency location of the Normal CP 16-bit bitmap sequence according to the present invention;
FIG. 5 is a schematic diagram of the time/frequency position corresponding to the Extended CP 16-bit bitmap sequence according to the present invention;
FIG. 6 is a diagram illustrating the time/frequency location of the Normal CP 8-bit bitmap sequence according to the present invention;
FIG. 7 is a diagram of another exemplary time/frequency location of the Normal CP 8-bit bitmap sequence according to the present invention;
FIG. 8 is a schematic diagram of the time/frequency position corresponding to the Extended CP 8-bit bitmap sequence of the present invention.
Detailed Description
Fig. 1 is a flowchart of a method for implementing signaling of a coordinated multipoint measurement set according to the present invention, as shown in fig. 1, including:
step 100: the network side configures a coordinated measurement set channel state information reference signal configuration signaling and informs a receiving side of a multipoint coordinated measurement set through a non-zero power channel state information reference signal configuration signaling, and/or a zero channel state information reference signal configuration signaling, and/or a Bitmap sequence indication signaling.
In this step, the cooperative measurement set channel state information reference signal configuration signaling may include a plurality of channel state information reference signal configuration signaling with non-zero power. Wherein,
the channel state information reference signal configuration signaling with different non-zero power has different period configuration and subframe offset configuration signaling, namely the number of the time/frequency position index signaling configured by the channel state information reference signal is the same as the number of the period and subframe offset configuration signaling; or,
a plurality of non-zero power channel state information reference signal configuration signaling except for the cell outside the serving cell, or a plurality of non-zero power channel state information reference signal configuration signaling of all the cells in the cooperation set, having the same period configuration and subframe offset configuration signaling, that is, only one period and subframe offset configuration signaling are configured; further, the period and subframe offset signaling may be implicitly notified by the period of the serving cell zero power or non-zero power channel state information reference signal and the subframe offset configuration information, that is, the configured period and subframe offset signaling are the same as the period and subframe offset configuration of the serving cell zero power channel state information reference signal, or the same as the non-zero power channel state information reference signal configuration of the primary serving cell.
The non-zero power channel state information reference signal configuration signaling at least includes one or any combination of antenna port number configuration information of the channel state information reference signal, time/frequency position information in one subframe of the channel state information reference signal, and period and subframe offset information.
The method can also obtain the cell except the service cell of the cooperative measurement set or all cell channel state information reference signal configuration signaling in the cooperative measurement set by combining the zero-power channel state information reference signal configuration signaling of the service cell; or acquiring the channel state information reference signal configuration signaling of the cells except the serving cell in the multipoint measurement set by combining the channel state information reference signal configuration signaling of the zero power of the serving cell.
Specifically, cells except for the serving cell or all cells in the cooperative measurement set in each cooperative measurement set may adopt 3 bits to notify the receiving side of the time/frequency position configuration information of the csi-rs reference signal to be measured in one subframe;
the cells except the serving cell in each cooperative measurement set or all the cells in the cooperative set can be configured with period and subframe offset information independently; or,
the cells except the serving cell in each cooperative measurement set or all the cells in the cooperative set can be configured with uniform period and subframe offset information; or,
the cells except the serving cell in each cooperative measurement set or all the cells in the cooperative set can be configured with uniform period and subframe offset information, and the period and subframe offset information is implicitly notified by the zero-power or non-zero-power channel state information reference signal period and subframe offset of the serving cell.
The time/frequency position index signaling configured by the channel state information reference signal can also use a bitmap (bitmap) sequence with 16 bits to indicate group information, and the 3-bit indication group information of 16 groups and each group indicates the time/frequency position configuration information of the channel state information reference signals of cells except the serving cell in the cooperative measurement set or all the cells in the cooperative measurement set in a subframe; or, 8-bit bitmap sequence indication group information may be utilized, and total 8 groups and 5 bits of each group indicate time/frequency position configuration information of the cell except the serving cell in the cooperative measurement set or all cell channel state information reference signals in the cooperative set in one subframe. At this time, the process of the present invention,
configuring the channel state information reference signals of all cells except the service cell in the cooperative measurement set or all cells in the cooperative set with period and subframe offset information respectively; or,
configuring uniform period and subframe bias information for all the channel state information reference signals configured to the cells except the serving cell in the cooperative measurement set or all the cells in the cooperative set; or,
and configuring uniform period and subframe offset information for all the channel state information reference signals configured to the cells except the serving cell in the cooperative measurement set or all the cells in the cooperative set, wherein the period and subframe offset information is implicitly notified by the zero-power or non-zero-power channel state information reference signal period and subframe offset of the serving cell.
Step 101: and the receiving side determines the size of the multipoint cooperative measurement set according to the number of the configured cooperative measurement set channel state information reference signal configuration signaling, and measures a plurality of configured channel state information.
In this step, the receiving side only configures the signaling according to the corresponding channel state information reference signal, measures the corresponding channel information, and then feeds back the channel information corresponding to the multiple channel state information reference signal configuration signaling.
Fig. 2 is a schematic diagram illustrating components of a system for implementing signaling of a coordinated multipoint measurement set according to the present invention, as shown in fig. 2, at least including a network side and a receiving side, wherein,
and the network side is used for configuring the coordinated measurement set channel state information reference signal configuration signaling and informing the receiving side of the multipoint coordinated measurement set through the non-zero power channel state information reference signal configuration signaling, the zero power channel state information reference signal configuration signaling and/or the Bitmap sequence indication signaling.
And the receiving side is used for determining the size of the multipoint cooperative measurement set according to the number of the configured cooperative measurement set channel state information reference signal configuration signaling, and measuring a plurality of configured channel state information.
The process of the present invention will be described in detail with reference to examples.
In the first embodiment, it is assumed that the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell through System Information Block (SIB) signaling or Radio Resource Control (RRC) signaling. The channel state information reference signal configuration signaling of the serving cell at least comprises one or more arbitrary combinations of the port number of the non-zero power channel state information reference signal of the serving cell, the time/frequency position, the period and subframe offset in one subframe, and the zero power channel state information;
the network side informs the receiving side of a plurality of non-zero power channel state information reference signal configuration signalings through SIB or RRC signaling. Each channel state information reference signal configuration represents a channel state information reference signal configuration for a cell other than the serving cell within one measurement set. Wherein, the non-zero power channel state information reference signal configuration signaling at least comprises any combination of one or more of the port number of the channel state information reference signal, the time/frequency position in one subframe, the period and the subframe offset. The channel state information reference signal of the serving cell is configured according to the signaling of R10.
The size of the csi-rs configuration set represents the size of the comp measurement set. Assuming that the size of the measurement set is N cells (including at least the primary serving cell), at this time, there are (N-1) cells (defined as cooperative measurement cells) in the measurement set except the primary serving cell, and the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell according to the signaling mode in LTE R10; then, the network side notifies the possible coordinated multi-point users of the channel state information reference signal configuration signaling of other cells in the corresponding (N-1) coordinated multi-point measurement set by using RRC signaling. Each signaling includes at least any combination of one or more of the number of ports for channel state information reference signals, time/frequency location within a subframe, periodicity, and subframe offset. Such as: the cooperative measurement channel state information reference signal configuration signaling comprises the following steps: a 1 st channel state information reference signal configuration signaling, a 2 nd channel state information reference signal configuration signaling, and an N-1 th channel state information reference signal configuration signaling.
The receiving side acquires the channel state information reference signal configuration signaling of the serving cell and the channel state information reference signal configuration signaling of other cooperative measurement cells outside the serving cell by receiving the SIB or RRC signaling. At this time, the receiving side does not know which cell's channel state information reference signal needs to be measured, and only configures signaling according to the corresponding channel state information reference signal to measure the corresponding channel information; and then, feeding back channel information corresponding to the plurality of channel state information reference signal configuration signaling to the network side.
In the second embodiment, it is assumed that the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell through SIB signaling or RRC signaling. The channel state information reference signal configuration signaling of the serving cell at least comprises one or any combination of more of the port number of the non-zero power channel state information reference signal of the serving cell, the time/frequency position, the period and subframe offset in one subframe, and the zero power channel state information reference signal configuration information;
the network side informs the receiving side of a plurality of other non-zero power channel state information reference signal configuration signalings through SIB or RRC signaling. Each channel state information reference signal configuration represents a channel state information reference signal configuration for a cell other than the serving cell within one measurement set. Wherein, the other non-zero power channel state information reference signal configuration signaling at least comprises any combination of one or more of the port number of the channel state information reference signal, the time/frequency position in one subframe, the period and the subframe offset information.
The size of the csi-rs configuration set represents the size of the comp measurement set. Assuming that the size of the measurement set is N cells (including at least the primary serving cell), at this time, there are (N-1) cells (defined as cooperative measurement cells) in the measurement set except the primary serving cell, and the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell according to the signaling mode in LTE R10; then, the network side notifies the possible coordinated multi-point users of the channel state information reference signal configuration signaling of other cells in the corresponding (N-1) coordinated multi-point measurement set by using RRC signaling. Each signaling includes at least the number of ports of the channel state information reference signal, the time/frequency location within one subframe. The (N-1) channel state information reference signal configuration signaling corresponds to the period and subframe offset signaling of one channel state information reference signal. Such as: the cooperative measurement channel state information reference signal configuration signaling comprises the following steps: the method includes the steps of 1 st channel state information reference signal configuration signaling, 2 nd channel state information reference signal configuration signaling, N-1 st channel state information reference signal configuration signaling, and cooperatively measuring the period and subframe offset of the channel state information reference signals.
The receiving side acquires the channel state information reference signal configuration signaling of the serving cell and the channel state information reference signal configuration signaling of the cooperative measurement cell by receiving the SIB or RRC signaling. At this time, the receiving side does not know which cell's channel state information reference signal needs to be measured, and only configures signaling according to the corresponding channel state information reference signal to measure the corresponding channel information; and then, feeding back channel information corresponding to the plurality of channel state information reference signal configuration signaling to the network side.
In the third embodiment, it is assumed that the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell through SIB signaling or RRC signaling. The channel state information reference signal configuration signaling of the serving cell at least comprises one or more arbitrary combinations of the port number of the non-zero power channel state information reference signal of the serving cell, the time/frequency position, the period and subframe offset in one subframe, and the zero power channel state information;
the network side informs the receiving side of a plurality of other non-zero power channel state information reference signal configuration signalings through SIB or RRC signaling. Each channel state information reference signal configuration represents a channel state information reference signal configuration for a cell other than the serving cell within one measurement set. Wherein the other non-zero power channel state information reference signal configuration signaling at least comprises one or more of the port number of the channel state information reference signal, the time/frequency position and period in one subframe, and the subframe offset information.
The size of the csi-rs configuration set represents the size of the comp measurement set. Assuming that the size of the measurement set is N cells (including at least the primary serving cell), at this time, there are (N-1) cells (defined as cooperative measurement cells) in the measurement set except the primary serving cell, and the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell according to the signaling mode in LTE R10; then, the network side notifies the possible coordinated multi-point users of the channel state information reference signal configuration signaling of other cells in the corresponding (N-1) coordinated multi-point measurement set by using RRC signaling. Each signaling includes at least the number of ports of the channel state information reference signal, the time/frequency location within one subframe. The (N-1) channel state information reference signal configuration signaling corresponds to the period and subframe offset signaling of one channel state information reference signal, and the signaling can be obtained through the period and subframe offset of the serving cell zero power channel state information reference signal configuration, namely the period and subframe offset of the cooperative measurement channel state information reference signal configuration are the same as the period and subframe offset of the serving cell zero power or non-zero power channel state information reference signal configuration.
The receiving side acquires the channel state information reference signal configuration signaling of the serving cell and the channel state information reference signal configuration signaling of the cooperative measurement cell by receiving the SIB or RRC signaling. At this time, the receiving side does not know which cell's channel state information reference signal needs to be measured, and only configures signaling according to the corresponding channel state information reference signal to measure the corresponding channel information; and then, feeding back channel information corresponding to the plurality of channel state information reference signal configuration signaling to the network side.
In the fourth embodiment, it is assumed that the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell through SIB signaling or RRC signaling. The channel state information reference signal configuration signaling of the serving cell at least comprises any combination of one or more of the port number of the serving cell non-zero power channel state information reference signal, the time/frequency position in one subframe, the period and subframe offset, and the zero power channel state information.
In the fourth embodiment, it is assumed that a 16-bit bitmap sequence configured by using a zero-power channel state information reference signal indicates a configuration situation of zero power in one subframe, that is, a Muting (Muting) set, at this time, the Muting set may be considered to be equal to a cooperative measurement set, and for a position indicated by the Muting set, a subframe time/frequency position of a channel state information reference signal of the cooperative measurement set is indicated by using 3 bits respectively, as shown in table 1 and table 2, where table 1 is a configuration of a channel state information reference signal under an ordinary CP in a case where the 16-bit bitmap sequence indicates group information of the subframe time/frequency position, and table 2 is a configuration of a channel state information reference signal under an extended CP in a case where the 16-bit bitmap sequence indicates group information of the subframe time/frequency position.
TABLE 1
TABLE 2
In tables 1 and 2, for a bit sequence corresponding to a bitmap sequence with 16 bits identified by 0-15, a frequency domain position and a time domain position of a first CSI-RS port of CSI-RS configuration information in a subframe are represented, and a receiving side can calculate the frequency domain position and the time domain position of the CSI-RS configuration information in a subframe of other ports through the configuration information and the port configuration information; n issThe slot indexes in one subframe are 000, 001, 010, 011, 100, and 101, respectively, which indicate 6 states.
For example, if a 16-bit bitmap is indicated as 0001000100010001, there are 4 groups of time/frequency positions in the cooperative measurement set, each group is indicated by 3 bits, and 12 bits are required.
The period and subframe offset of each csi-rs in the cooperative measurement set may be configured independently, for example, at least 4 periods and subframe offset signaling need to be configured for 4 groups in the cooperative measurement set.
The period and subframe offset of each csi reference signal of the cells except the serving cell in the cooperative measurement set or all the cells in the cooperative measurement set may be configured uniformly, for example, only one period and subframe offset signaling needs to be configured for 4 groups in the cooperative measurement set. Moreover, the signaling configuration can be implicitly informed by the periodicity and the subframe offset of the zero power or non-zero power configuration of the serving cell, and no additional periodicity and subframe offset signaling is needed.
In the fifth embodiment, it is assumed that the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell through SIB signaling or RRC signaling. The channel state information reference signal configuration signaling of the serving cell at least comprises any combination of one or more of the port number of the non-zero power channel state information reference signal of the serving cell, the time/frequency position, the period and subframe offset in one subframe, and the zero power channel state reference signal information;
in the fifth embodiment, if the cooperative measurement set can be different from the muting set, then the 16-bit bitmap sequence can be configured separately for the cooperative measurement set to indicate the group information of the time/frequency position in one subframe, and each group corresponds to the configuration pattern of the CSI-RS of one 4-port, see fig. 3 to 5, where the shaded part is the time/frequency position for placing the CSI reference signal. If the CSI-RS configuration within the cooperative measurement set is within any of the 16 groups, the bit indication of the corresponding group is 1, otherwise 0, or vice versa. Then, in order to inform the corresponding intra-group information using 3 bits for the group indicating 1, refer to table 1 and table 2, but are not limited to this sort method. .
For example, if a 16-bit bitmap is indicated as {0001000100010001}, there are 4 groups of time/frequency positions in the coordinated measurement set, each group is indicated by 3 bits, and 12+ 16-28 bits are required.
The period and subframe offset of each csi-rs in the cooperative measurement set may be configured independently, for example, at least 4 periods and subframe offset signaling need to be configured for 4 groups in the cooperative measurement set.
The period and subframe offset of each csi reference signal of cells in the cooperative measurement set except for the serving cell or all cells in the cooperative measurement set may be configured uniformly, for example, only one period and subframe offset signaling needs to be configured for 4 groups in the cooperative measurement set. Moreover, the signaling configuration can be implicitly informed by the periodicity and the subframe offset of the zero power or non-zero power configuration of the serving cell, and no additional periodicity and subframe offset signaling is needed.
In the sixth embodiment, it is assumed that the network side notifies the receiving side of the channel state information reference signal configuration signaling of the serving cell through SIB signaling or RRC signaling. The channel state information reference signal configuration signaling of the serving cell at least comprises one or any combination of more of the port number of the non-zero power channel state information reference signal of the serving cell, the time/frequency position, the period and subframe offset in one subframe, and the configuration information of the zero power channel state information reference signal;
in the sixth embodiment, if the cooperative measurement set may be different from the muting set, in this case, group information indicating a subframe time/frequency position by a bitmap sequence of 8 bits may be separately configured for the cooperative measurement set, where each group corresponds to a configuration pattern of a CSI-RS of a 4-port, refer to fig. 6 to 8, where a shaded portion is a time/frequency position where a channel state information reference signal is placed. If the CSI-RS configuration in the cooperative measurement set is in any of the 8 groups, the bit of the corresponding group indicates 1, otherwise 0, and vice versa. Then, for indicating the group of 1, notify the corresponding intragroup information with 5 bits, refer to table 3 and table 4, table 3 is the configuration of the channel state information reference signal under the normal CP in case of adopting the bitmap sequence of 8 bits to indicate the group information of the time/frequency position in one subframe, table 4 is the configuration of the channel state information reference signal under the extended CP in case of adopting the bitmap sequence of 8 bits to indicate the group information of the time/frequency position in one subframe.
TABLE 3
TABLE 4
In tables 3 and 4, for a bit sequence corresponding to a bitmap sequence with 8 bits identified by 0-7, a frequency domain position and a time domain position of a first CSI-RS port of CSI-RS configuration information in one subframe are represented, and a receiving side can calculate the frequency domain position and the time domain position of the CSI-RS configuration information in one subframe of other ports through the configuration information and the port configuration information. n issThe slot index of one sub-frame is 0-25, which represents 26 states respectively. But is not limited to such sorting methods.
For example, if an 8-bit bitmap indicates {00010001}, there are 2 groups of time/frequency positions in the coordinated measurement set, each group is indicated by 5 bits, and 2 × 5+8 bits are needed. 1-4 is indicated as any one of four positions, 5-10 is indicated as a combination of any two of the four positions, 11-14 is indicated as a combination of any three of the four positions, 15 is indicated as all four positions, 16-17 is indicated as all two positions, 18 is indicated as all two positions, 19-22 is indicated as a combination of a 4-port position and a 1or 2-port position (e.g., (9, 1) and (3, 1), (9, 1) and (0, 1), (3, 1) and (9, 1), (3, 1) and (6, 1) respectively, as configuration 19-22 of bits 6 of Table 4), 23-24 is indicated as a combination of a 4-port position and two 1or 2-port positions (e.g., (11, 1) and (5, 1) and (2, 1), (5, 1) and (11, 1) and (8, 1) respectively, as configuration 23-24 of bits 4 of Table 4 is indicated as (e.g., (11, 1) and (1, 1) and (8, 1, 25 is one position with 8 ports.
The period and subframe offset of each csi-rs in the cooperative measurement set may be configured independently, for example, 2 groups in the cooperative measurement set need to configure at least 2 periods and subframe offset signaling.
The period and subframe offset of each csi reference signal of the cells except the serving cell in the cooperative measurement set or all the cells in the cooperative measurement set may be configured uniformly, for example, only one period and subframe offset signaling needs to be configured for 2 groups in the cooperative measurement set. Moreover, the signaling configuration can be implicitly informed by the periodicity and the subframe offset of the zero power or non-zero power configuration of the serving cell, and no additional periodicity and subframe offset signaling is needed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (15)
1. A method for signaling to implement a measurement set, comprising:
the network side configures the coordinated measurement set channel state information reference signal configuration signaling through a non-zero power channel state information reference signal configuration signaling, and/or a Bitmap sequence indication signaling, so as to inform a receiving side of a measurement set of multipoint coordination.
2. The signaling notification method according to claim 1, characterized in that the method further comprises:
and the receiving side determines the size of the multipoint cooperative measurement set according to the number of the received cooperative measurement set channel state information reference signal configuration signaling, and measures a plurality of configured channel state information.
3. The signaling method according to claim 2, wherein the cooperative measurement set channel state information reference signal configuration signaling comprises a plurality of non-zero power channel state information reference signal configuration signaling.
4. The signaling method according to claim 3, wherein said plurality of non-zero power CSI-RS configuration signaling have different plurality of periodicity configuration and subframe offset configuration signaling.
5. The signaling method according to claim 3, wherein the plurality of non-zero power channel state information reference signal configuration signalings of all cells except the serving cell or in the coordinated measurement set have the same periodicity configuration and subframe offset configuration signalings.
6. The signaling method according to claim 5, wherein the configured periodicity and subframe offset signaling is implicitly signaled by periodicity and subframe offset configuration information of serving cell zero power or non-zero power channel state information reference signal.
7. The signaling method according to any of claims 3 to 6, wherein the channel state information reference signal configuration signaling with non-zero power at least comprises: the antenna port number configuration information of the channel state information reference signal, the time/frequency position information of the channel state information reference signal in one subframe, the period and the subframe offset information are selected from one or any combination.
8. The signaling method according to claim 2, characterized in that: and acquiring the configuration signaling of the channel state information reference signal of the cooperative measurement set by combining the configuration signaling of the zero-power channel state information reference signal of the service cell.
9. The signaling notification method according to claim 8, characterized in that the method further comprises: and acquiring the channel state information reference signal configuration signaling of the cells except the serving cell in the multipoint cooperation set through the channel state information reference signal configuration signaling of the zero power of the combined serving cell.
10. The signaling method according to claim 9, wherein said notifying a measurement set of multipoint coordination on a receiving side comprises: and the time/frequency position information of the channel state reference signals of the cells except the serving cell in each cooperative measurement set or all the cells in the cooperative measurement set adopts 3 bits, and informs the receiving side of the time/frequency position configuration information of the channel state information reference signals needing to be measured in one subframe.
11. The signaling method according to claim 9, wherein said notifying a measurement set of multipoint coordination on a receiving side comprises: and configuring the period and subframe offset information separately or configuring the uniform period and subframe offset information for the channel state reference signals of the cells except the serving cell in each cooperative measurement set or all the cells in the cooperative measurement set.
12. The signaling notification method according to claim 11, wherein when all cells except the serving cell in each of the cooperative measurement sets or in a cooperative measurement set configure uniform periodicity and subframe offset information, the configured periodicity and subframe offset information are implicitly notified by a zero-power or non-zero-power channel state information reference signal periodicity and subframe offset of the serving cell.
13. The signaling method of claim 2, wherein the network side configuring the cooperative measurement set channel state information reference signal configuration signaling comprises:
indicating group information by using a bitmap sequence with 16 bits, wherein the total of 16 groups and each group of 3 bits indicate time/frequency position configuration information of all cell channel state information reference signals in the coordinated measurement set except for a service cell or in a subframe; or,
group information is indicated by using 8-bit bitmap sequences, and total 8 groups and 5-bit indication group information of each group indicate time/frequency position configuration information of all cell channel state information reference signals in the coordinated measurement set except for a serving cell or in one subframe.
14. The signaling notification method according to claim 13, wherein the channel state information reference signal configurations of all the cells except the serving cell in the cooperative measurement set or all the cells in the cooperative measurement set are respectively configured with periodicity and subframe offset information; or,
configuring uniform period and subframe bias information for all the channel state information reference signals configured as the cooperative measurement set except the serving cell or in all the cells in the cooperative measurement set; or,
and configuring unified period and subframe offset information for all the channel state information reference signals configured as the cells except the serving cell in the cooperative measurement set or all the cells in the cooperative measurement set, wherein the period and subframe offset information is implicitly notified by the zero-power or non-zero-power channel state information reference signal period and subframe offset of the serving cell.
15. A signaling system for implementing coordinated multipoint measurement set, comprising at least a network side and a receiving side, wherein,
the network side is used for configuring the coordinated measurement set channel state information reference signal configuration signaling and informing the receiving side of a multipoint coordinated measurement set through a non-zero power channel state information reference signal configuration signaling, and/or a Bitmap sequence indication signaling;
and the receiving side is used for determining the size of the multipoint cooperative measurement set according to the number of the configured cooperative measurement set channel state information reference signal configuration signaling, and measuring a plurality of configured channel state information.
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