WO2017016341A1 - 一种参考信号映射方法及装置 - Google Patents
一种参考信号映射方法及装置 Download PDFInfo
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- WO2017016341A1 WO2017016341A1 PCT/CN2016/086430 CN2016086430W WO2017016341A1 WO 2017016341 A1 WO2017016341 A1 WO 2017016341A1 CN 2016086430 W CN2016086430 W CN 2016086430W WO 2017016341 A1 WO2017016341 A1 WO 2017016341A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
- H04L1/0675—Space-time coding characterised by the signaling
- H04L1/0693—Partial feedback, e.g. partial channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
- H04L5/0082—Timing of allocation at predetermined intervals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
Definitions
- the present disclosure relates to the field of wireless communication technologies, and in particular, to a reference signal mapping method and apparatus.
- C-RS Cell-specifc Reference Signal
- UE-RS user-specific reference signal
- DM-RS Demodulation-Reference Signal
- MBSFN Multimedia Broadcast multicast service Single Frequency Network
- P-RS Positioning-Reference Signal
- CSI-RS Channel State Indication Reference Signal
- CSI-RS is used for downlink channel measurement and estimation.
- the reference signal pattern shows the resource locations of the different reference signals, that is, the locations of the REs to which the different reference signals are mapped are located in the PRB (Physical Resource Block).
- PRB Physical Resource Block
- a reference signal is transmitted on each of the downstream antenna ports.
- the current LTE system can be configured as a 2-port or 4-port or 8-port for a CSI-RS, and cannot support more CSI-RSs of antenna ports.
- the embodiments of the present disclosure provide a reference signal mapping method and apparatus for implementing 12-port or 16-port CSI-RS mapping.
- an embodiment of the present disclosure provides a reference signal mapping method, including:
- N a resource unit RE location to which the channel state information reference signal CSI-RS is mapped, N being equal to 12 or 16; wherein the N-port reference signal pattern is mapped to the RE location to which the CSI-RS is mapped Is determined according to the RE position to which the CSI-RS is mapped according to one or more reference signal patterns in the 2-port, 4-port, and 8-port reference signal patterns;
- Resource mapping is performed on the CSI-RS according to the determined RE location.
- an embodiment of the present disclosure further provides a reference signal mapping apparatus, including:
- a determining module configured to determine, according to the N-port reference signal pattern, a resource unit RE location to which the channel state information reference signal CSI-RS is mapped, where N is equal to 12 or 16; wherein the CSI-RS in the N-port reference signal pattern is The mapped RE location is determined according to the RE location to which the CSI-RS is mapped according to one or more of the reference signal patterns in the 2-port, 4-port, and 8-port reference signal patterns;
- mapping module configured to perform resource mapping on the CSI-RS according to the determined RE location.
- an embodiment of the present disclosure further provides a network side device, including:
- a memory coupled to the processor via a bus interface and configured to store programs and data used by the processor in performing operations
- a transceiver for communicating with various other devices on a transmission medium
- the network side device When the processor calls and executes the program and data stored in the memory, the network side device performs the following processing:
- N a resource unit RE location to which the channel state information reference signal CSI-RS is mapped, N being equal to 12 or 16; wherein the N-port reference signal pattern is mapped to the RE location to which the CSI-RS is mapped Is based on 2-port, 4-port, 8-port reference signals Determining the location of the RE to which the CSI-RS is mapped in one or more reference signal patterns in the pattern;
- Resource mapping is performed on the CSI-RS according to the determined RE location.
- a reference signal pattern of 12 ports or 16 ports is obtained according to an existing reference signal pattern, such as one or more reference signal patterns in 2-port, 4-port, and 8-port reference signal patterns. And performing the reference signal mapping, determining the RE location to which the CSI-RS is mapped according to the reference signal pattern of the 12-port or 16-port, and performing resource mapping on the CSI-RS according to the RE location, thereby implementing 12 ports or 16
- the CSI-RS mapping of the port which in turn enables the transmission of 12-port or 16-port CSI-RS.
- 1A, 1B, and 1C are respectively a 2-port, 4-port, and 8-port reference signal pattern in the prior art
- FIG. 2 is a schematic flowchart of a reference signal mapping provided by an embodiment of the present disclosure
- 3A, 3B, and 3C are respectively 12-port reference signal patterns in the first embodiment of the present disclosure
- 4A, 4B, and 4C are respectively 12-port reference signal patterns in Embodiment 2 of the present disclosure.
- 5A, 5B, and 5C are respectively 12-port reference signal patterns in Embodiment 3 of the present disclosure.
- FIG. 6A and FIG. 6B are respectively a 12-port reference signal pattern in Embodiment 4 of the present disclosure.
- 7A to 7F are respectively 16-port reference signal patterns in Embodiment 5 of the present disclosure.
- FIG. 8 is a schematic structural diagram of a reference signal mapping apparatus according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of a network side device (for example, a base station) according to an embodiment of the present disclosure.
- a reference signal is transmitted on each of the downstream antenna ports.
- An antenna port is a logical port used for transmission, which can correspond to one or more actual physical antennas.
- the definition of the antenna port is defined from the perspective of the receiver, that is, if the receiver needs to distinguish the spatial difference of resources, it is necessary to define multiple antenna ports.
- the reference signal corresponding to an antenna port received by the terminal The corresponding antenna port is defined, although this reference signal may be a composite of signals transmitted by multiple physical antennas.
- FIG. 2 is a schematic diagram of a reference signal mapping process provided by an embodiment of the present disclosure. This flow can be performed by the base station. As shown in Figure 2, the process can include:
- Step 201 Determine, according to the N-port reference signal pattern, an RE (Resource Unit) location to which the CSI-RS is mapped, where N is equal to 12 or 16; wherein, the RE location where the CSI-RS is mapped in the N-port reference signal pattern Is determined according to the RE position to which the CSI-RS is mapped according to one or more reference signal patterns in the 2-port, 4-port, and 8-port reference signal patterns;
- RE Resource Unit
- Step 202 Perform resource mapping on the CSI-RS according to the determined RE location.
- a 12-port reference signal pattern is generated using a combination of one or more reference signal patterns in the 2-port, 4-port, and 8-port reference signal patterns, according to the 12-port reference signal
- the pattern performs CSI-RS reference signal mapping, which enables transmission of 12-port CSI-RS.
- a 16-port reference signal pattern is generated by using a combination of one or more reference signal patterns in the 2-port, 4-port, and 8-port reference signal patterns, and CSI-RS reference signal mapping is performed according to the 16-port reference signal pattern.
- the transmission of 16-port CSI-RS can be realized.
- the base station can configure the terminal 12 port CSI-RS or the 16 port CSI-RS.
- the terminal measures the channel on the configured CSI-RS port and feeds back the channel information.
- N is equal to 12 or 16, which is relatively large.
- the 12-port reference signal pattern and/or the 16-port reference signal pattern provided by the embodiments of the present disclosure are provided. It can be designed according to at least the 8-port reference signal pattern. That is, in the N-port reference signal pattern, among the N REs to which a group of CSI-RSs are mapped, at least a part of the REs and one or more groups of CSI-RSs in the 8-port reference signal pattern are The locations of the REs mapped to are the same.
- the embodiments of the present disclosure do not preclude designing a 12-port or 16-port reference signal pattern in accordance with various combinations of 2-port, 4-port, and 8-port reference signal patterns.
- the 12-port reference signal pattern provided by the embodiment of the present disclosure, among the 12 REs to which a group of CSI-RSs are mapped, there are 8 REs and 8 ports.
- the positions of the 8 REs to which the first group of CSI-RSs in the reference signal pattern are mapped are the same.
- the positions of the remaining 4 REs may be any one of the following first to fifth distribution cases.
- the first distribution case the distribution of the remaining 4 REs is the same as the location of the 4 REs to which a group of CSI-RSs in the 4-port reference signal pattern is mapped. For example, an RE from which a set of 8-port CSI-RSs is mapped is selected from the pattern shown in FIG. 1C, and then a RE of a set of 4-port CSI-RSs is mapped from the pattern shown in FIG. 1B, and It is ensured that the RE to which the selected 8-port CSI-RS is mapped does not overlap with the RE to which the selected 4-port CSI-RS is mapped. Based on the location of these REs, a set of 12-port CSI-RS patterns in the 12-port reference pattern can be obtained.
- the remaining 4 REs are REs in the 8-port reference signal pattern that are not mapped by any reference signals.
- the mapping patterns of the four groups of 8-port CSI-RSs in the pattern shown in FIG. 1C may be retained, and the REs corresponding to the remaining ports may be selected from REs that are not mapped by any reference signals, thereby obtaining a 12-port reference signal pattern.
- the third distribution case the positions of the remaining 4 REs are the same as the positions of the 4 REs of the REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped.
- the fourth distribution case in the remaining four REs, the location of the two REs is the same as the location of the two REs of the eight REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped.
- the positions of the other two REs are the same as the positions of the two REs of the eight REs to which the third group of CSI-RSs in the 8-port reference signal pattern are mapped;
- the location of 2 REs is the same as the location of 2 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped.
- the other two REs are REs in the 8-port reference signal pattern that are not mapped by any reference signals.
- first group CSI-RS “second group CSI-RS”, and “third group CSI-RS” do not specifically refer to a certain
- the group CSI-RS is only used to indicate the difference from the other two sets of CSI-RS.
- the 12-port reference signal pattern provided by the embodiment of the present disclosure, among the 12 REs to which a group of CSI-RSs are mapped, there are 4 RE locations and 8-port reference signals.
- the positions of the 4 REs of the 8 REs to which the first group of CSI-RSs are mapped are the same, and the positions of the remaining 8 REs include any of the following sixth to ninth distributions:
- a seventh distribution case among the remaining 8 REs, the positions of 4 REs are the same as the positions of 4 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped, The positions of the other 4 REs are the same as the positions of the 4 REs of the 8 REs to which the third group of CSI-RSs in the 8-port reference signal pattern are mapped.
- the eighth distribution case in the remaining 8 REs, the location of 4 REs is the same as the position of 4 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped,
- the other 4 REs are REs in the 8-port reference signal pattern that are not mapped by any reference signals.
- the remaining 8 REs are REs in the 8-port reference signal pattern that are not mapped by any reference signals.
- first group CSI-RS "second group CSI-RS” and “third group CSI-RS” are not specifically referred to.
- a certain set of CSI-RS is only used to indicate that it is different from the other two sets of CSI-RS.
- the N REs to which a group of CSI-RSs are mapped may be located in the same column symbol or in different column symbols. Among them, each column symbol contains 2 adjacent symbols. Further, in a case where N REs to which a group of CSI-RSs are mapped are located in different column symbols, they may be located on two or three columns of symbols. In the 12-port reference signal pattern, there may be three columns of symbols that can be mapped on the CSI-RS. In the embodiment of the present disclosure, for a group of 12-port CSI-RS, if mapped to two columns of symbols, The two embodiments of the present disclosure do not limit the embodiments of the present disclosure.
- the DM-RS (De Modulation Reference Signal) is not transmitted, according to the 12-port reference signal pattern, part of the REs to which a group of CSI-RSs are mapped are mapped to the The RE location to which the DM-RS is mapped. In this way, the physical resources can be fully utilized to transmit CSI-RS.
- At least two of the 12 ports corresponding to a group of CSI-RSs are multiplexed by using 2-bit orthogonal spreading codes, or at least Four ports are multiplexed with 4-bit orthogonal spreading codes, or at least six ports are multiplexed with 6-bit orthogonal spreading codes.
- the port can be arbitrarily selected for multiplexing.
- each of the two ports is multiplexed with a 2-bit orthogonal spreading code; or, each of the four ports is multiplexed with a 4-bit orthogonal spreading code.
- every 6 ports are multiplexed with a 6-bit orthogonal spreading code.
- the number of bits of the orthogonal spreading code used by the N ports corresponding to the first group of CSI-RSs, and the N corresponding to the second group of CSI-RSs is the same or different.
- the “first group CSI-RS” and the “second group CSI-RS” do not specifically refer to a certain group of CSI-RSs, but only show differences.
- the 12-port reference signal pattern provided by the embodiment of the present disclosure includes a 12-port reference signal pattern of a Downlink Pilot Time Slot (Downlink Pilot Time Slot).
- Downlink Pilot Time Slot Downlink Pilot Time Slot
- the 16-port reference signal pattern provided by the embodiment of the present disclosure, among the 16 REs to which a group of CSI-RSs are mapped, there are 8 REs and the first group of CSIs in the 8-port reference signal pattern.
- the positions of the 8 REs to which the RS is mapped are the same, and the positions of the remaining 8 REs are the same as the positions of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped.
- one way to construct a 16-port CSI-RS reference signal map is to directly put together two 8-port patterns.
- the N REs to which a group of CSI-RSs are mapped may be located in the same column symbol or in different column symbols. Among them, each column symbol contains 2 adjacent symbols. Further, in a case where N REs to which a group of CSI-RSs are mapped are located in different column symbols, they may be located on two or three columns of symbols. In the 16-port reference signal pattern, there may be three columns of symbols that can be mapped to CSI-RS. In the embodiment of the present disclosure, for a group of 16-port CSI-RSs, if mapped to two columns of symbols, which two are specifically mapped to The embodiment of the present disclosure is not limited in terms of column symbols.
- the DM-RS is not transmitted, according to the 16-port reference signal pattern, among the N REs to which a group of CSI-RSs are mapped, some REs are mapped to the RE locations to which the DM-RS is mapped. In this way, the physical resources can be fully utilized to transmit CSI-RS.
- At least two of the 16 ports corresponding to a group of CSI-RSs are multiplexed by using 2-bit orthogonal spreading codes, or at least four.
- the ports are multiplexed using 4-bit orthogonal spreading codes, or at least 6 ports are multiplexed using 6-bit orthogonal spreading codes.
- the port can be arbitrarily selected for multiplexing.
- each of the 16 ports corresponding to a group of CSI-RSs is multiplexed with a 2-bit orthogonal spreading code; or, 16 ports In the reference signal pattern, each of the 16 ports corresponding to a group of CSI-RSs is multiplexed with a 4-bit orthogonal spreading code.
- the number of bits of the orthogonal spreading code used by the N ports corresponding to the first group of CSI-RSs, and the N corresponding to the second group of CSI-RSs is the same or different.
- the “first group CSI-RS” and the “second group CSI-RS” do not specifically refer to a certain group of CSI-RSs, but only show differences.
- the 16-port reference signal pattern of the DwPTS is included in the 16-port reference signal pattern provided by the embodiment of the present disclosure.
- CSI-RS mapping and transmission can be performed on the DwPTS according to the 16-port reference signal pattern of the DwPTS.
- the first embodiment describes a scheme for obtaining a 12-port signal reference pattern according to a 4-port reference signal pattern and an 8-port reference signal pattern.
- FIG. 3A shows a 12 port reference signal pattern. It should be noted that FIG. 3A only shows a possible 12-port reference signal pattern. Based on the distribution rule of the aforementioned 12-port reference signal pattern, other 12-port reference signal patterns can also be obtained, which are not enumerated here.
- each square represents an RE
- the position of one RE can be represented by coordinates (x, y), where x represents a symbol number and y represents a subcarrier number.
- the value in each square represents the port number.
- the REs to which the first set of CSI-RSs are mapped in the order of port numbers from 0 to 11, including the following RE of position: (5,9), (6,9), (5,3), (6,3),(5,8),(6,8),(5,2),(6,2 ), (9, 7), (10, 7), (9, 1), (10, 1).
- the REs corresponding to the ports 0 to 7 are the same as the REs mapped to the group of 8-port CSI-RSs in FIG. 1C, and the REs corresponding to the ports 8 to 11 are mapped to the CSI-RSs in FIG. 1B.
- the RE location is the same.
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 9), (10, 9), (9, 3), (10, 3) ), (9, 8), (10, 8), (9, 2), (10, 2), (9, 6), (10, 6), (9, 0), (10, 0).
- the REs corresponding to the ports 0 to 7 are the same as the REs mapped to the CSI-RSs in FIG. 1C, and the REs corresponding to the ports 8 to 11 and the REs mapped to the CSI-RSs in FIG. 1B. The location is the same.
- the REs to which the third group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (12, 9), (13, 9), (12, 3), (13, 3) ), (12, 8), (13, 8), (12, 2), (13, 2), (9, 11), (10, 11), (9, 5), (10, 5).
- the REs corresponding to the ports 0 to 7 are the same as the REs mapped to the CSI-RSs in FIG. 1C, and the REs corresponding to the ports 8 to 11 and the REs mapped to the CSI-RSs in FIG. 1B. The location is the same.
- the 12-port reference signal pilot pattern in the DwPTS region of the TDD (Time Division Duplexing) subframe may also be obtained based on the above principle.
- Figures 3B and 3C show a 12-port reference signal pattern in a DwPTS, respectively.
- the pattern shown in FIG. 3B is applicable to a DwPTS having a length of 11 symbols or 12 symbols
- the pattern shown in FIG. 3C is applicable to a DwPTS having a length of 9 symbols or 10 symbols.
- FIG. 3B and FIG. 3C only show two possible 12-port reference signal patterns. Based on the distribution rule of the aforementioned 12-port reference signal pattern, other 12-port reference signal patterns can also be obtained, and no longer one. An enumeration.
- each square represents an RE
- the position of one RE can be represented by coordinates (x, y), where x represents a symbol number and y represents a subcarrier number.
- the value in each square represents the port number.
- FIG. 3B three sets of 12-port CSI-RS patterns are shown, and the three sets of 12-port CSI-RS patterns can be distributed according to the first distribution in the aforementioned 12-port reference signal pattern, wherein :
- the REs to which the first set of CSI-RSs are mapped in the order of port numbers from 0 to 11, including the following RE of position: (2,9), (3,9), (2,3), (3,3), (2,8), (3,8), (2,2), (3,2 ), (5,6), (6,6), (5,0), (6,0).
- the RE corresponding to the port 0 to the port 7 and the RE position mapped to the CSI-RS in FIG. 1C are moved forward by 3 symbols, and the RE corresponding to the port 8 to port 11 are the same as those in FIG. 1B.
- the RE position to which a group of CSI-RSs is mapped is the same as the position after moving 4 symbols forward.
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 11), (6, 11), (5, 5), (6, 5) ), (5, 10), (6, 10), (5, 4), (6, 4), (5, 7), (6, 7), (5, 1), (6, 1).
- the RE corresponding to the port 0 to the port 7 and the RE position mapped to the CSI-RS in FIG. 1C are moved forward by 3 symbols, and the RE corresponding to the port 8 to port 11 are the same as those in FIG. 1B.
- the RE position to which a group of CSI-RSs is mapped is the same as the position after moving 4 symbols forward.
- the REs to which the third group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 9), (10, 9), (9, 3), (10, 3) ), (9, 8), (10, 8), (9, 2), (10, 2), (5, 9), (6, 9), (5, 3), (6, 3).
- the RE corresponding to the port 0 to the port 7 and the RE position mapped to the CSI-RS in FIG. 1C are moved forward by 3 symbols, and the RE corresponding to the port 8 to port 11 are the same as those in FIG. 1B.
- the RE position to which a group of CSI-RSs is mapped is the same as the position after moving 4 symbols forward.
- FIG. 3C a set of 12-port CSI-RS patterns is shown.
- the RE corresponding to the port 1 to the port 7 and the RE position mapped to the CSI-RS in FIG. 1C are moved forward by 3 symbols, and the RE corresponding to the port 8 to port 11 are the same as those of the port 8 to port 11.
- the RE position to which a group of CSI-RSs is mapped is the same as the position after moving 4 symbols forward.
- two-port OCC Orthogonal Complementary Code
- Table 1 shows that CSI-RS port 0 and CSI-RS port 1 can be multiplexed using 2-bit OCC, and CSI-RS port 4 and CSI-RS port 5 can be multiplexed using 2-bit OCC, CSI-RS port 8 and CSI-RS port 9 can be multiplexed using 2-bit OCC, CSI-RS port 10 and CSI-RS port 11 can be multiplexed using 2-bit OCC, and CSI-RS port 2 and CSI-RS port 3 can use 2-bit OCC For multiplexing, CSI-RS port 6 and CSI-RS port 7 can be multiplexed using a 2-bit OCC.
- Embodiment 2 describes a scheme for obtaining a 12-port reference signal pattern based on an 8-port reference signal pattern.
- FIG. 4A shows a 12 port reference signal pattern. It should be noted that FIG. 4A only shows a possible 12-port reference signal pattern. Based on the distribution rule of the 12-port reference signal pattern described in the foregoing embodiment, other 12-port reference signal patterns can also be obtained, and no longer List one by one.
- each square represents an RE
- the position of one RE can be represented by coordinates (x, y), where x represents a symbol number and y represents a subcarrier number.
- the value in each square represents the port number.
- a pattern of four sets of 12-port CSI-RSs is shown.
- the patterns of the first group of CSI-RSs and the second group of CSI-RSs conform to the rule of the second distribution in the foregoing 12-port reference signal pattern, and the patterns of the third group of CSI-RSs and the fourth group of CSI-RSs are consistent.
- the law of the fourth distribution condition in the aforementioned 12-port reference signal pattern is shown.
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 9), (6, 9), (5, 3), (6, 3) ), (5, 8), (6, 8), (5, 2), (6, 2), (5, 7), (6, 7), (5, 4), (6, 4).
- the REs corresponding to ports 0 to 7 are the same as the REs mapped to a group of CSI-RSs in FIG. 1C, and the REs corresponding to ports 8 to 11 are REs that are not mapped by any reference signals in FIG. 1C.
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including REs at the following locations: (12, 9), (13, 9), (12, 3), (13, 3) ), (12, 8), (13, 8), (12, 2), (13, 2), (12, 7), (13, 7), (12, 4), (13, 4).
- the REs corresponding to ports 0 to 7 are the same as the REs mapped to a group of CSI-RSs in FIG. 1C, and the REs corresponding to ports 8 to 11 are not in FIG. 1C.
- the RE to which the test signal is mapped.
- the REs to which the third group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 12), (10, 12), (9, 5), (10, 5) ), (9, 11), (10, 11), (9, 4), (10, 4), (9, 7), (10, 7), (9, 1), (10, 1).
- the REs corresponding to the ports 0 to 7 are the same as the REs mapped to the group of CSI-RSs in FIG. 1C, and the REs corresponding to the ports 8 and 9 are mapped to the REs mapped to the other group of CSI-RSs in FIG. 1C.
- the positions of the two REs in the same are the same, and the REs corresponding to the ports 10 and 11 are the same as the positions of the two REs in the RE to which the further group of CSI-RSs in FIG. 1C are mapped.
- the REs to which the fourth group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 9), (10, 9), (9, 3), (10, 3) ), (9, 8), (10, 8), (9, 2), (10, 2), (9, 6), (10, 6), (9, 0), (10, 0).
- the REs corresponding to the ports 0 to 7 are the same as the REs mapped to the group of CSI-RSs in FIG. 1C, and the REs corresponding to the ports 8 and 9 are mapped to the REs mapped to the other group of CSI-RSs in FIG. 1C.
- the positions of the two REs in the same are the same, and the REs corresponding to the ports 10 and 11 are the same as the positions of the two REs in the RE to which the further group of CSI-RSs in FIG. 1C are mapped.
- the 12-port reference signal pilot pattern in the DwPTS region of the TDD subframe may also be obtained based on the above principle.
- FIG. 4B and 4C respectively show a 12-port reference signal pattern in the DwPTS, wherein the pattern shown in FIG. 4B is applied to a DwPTS having a length of 11 symbols or 12 symbols, and the pattern shown in FIG. 4C is applied to A DwPTS of 9 symbols or 10 symbols in length.
- FIG. 4B and FIG. 4C only show two possible 12-port reference signal patterns. Based on the distribution rule of the aforementioned 12-port reference signal pattern, other 12-port reference signal patterns can also be obtained, and no longer one. An enumeration.
- each square represents an RE
- the position of one RE can be represented by coordinates (x, y), where x represents a symbol number and y represents a subcarrier number.
- the value in each square represents the port number.
- FIG. 4B a pattern of four sets of 12-port CSI-RSs is shown.
- the REs to which the first group of CSI-RSs are mapped in the order of port numbers from 0 to 11, including the following locations: RE: (2, 9), (3, 9), (2, 3), (3, 3) ), (2, 8), (3, 8), (2, 2), (3, 2), (2, 7), (3, 7), (2, 4), (3, 4).
- the RE corresponding to the port 0 to the port 7 and the RE position mapped to the CSI-RS in FIG. 1C are moved forward by 3 symbols, and the RE corresponding to the port 8 to the port 11
- the frequency domain positions on symbol 2, symbol 3 are the same as the REs on the symbols 5 and 6 in Fig. 1C that are not mapped by any reference signal in the frequency domain.
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 9), (10, 9), (9, 3), (10, 3) ), (9, 8), (10, 8), (9, 2), (10, 2), (9, 7), (10, 7), (9, 4), (10, 4).
- the REs corresponding to the ports 0 to 7 are the same as the positions where the REs mapped to the CSI-RSs in FIG. 1C are moved forward by 3 symbols, and the REs corresponding to the ports 8 to 11 are at the symbols 9 and symbols.
- the frequency domain position on 10 is the same as the position of the RE that is not mapped by any reference signal on symbols 12 and 13 in Fig. 1C in the frequency domain.
- the REs to which the third group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 11), (6, 11), (5, 5), (6, 5) ), (5, 10), (6, 10), (5, 4), (6, 4), (5, 7), (6, 7), (5, 1), (6, 1).
- the RE corresponding to the port 0 to the port 7 is the same as the RE position mapped to the CSI-RS in FIG. 1C, and the RE corresponding to the port 8 to the port 11 and the RE in FIG. 1C.
- the four RE positions to which another set of CSI-RSs are mapped are moved to the same position after moving 4 symbols.
- the REs to which the fourth group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 9), (6, 9), (5, 3), (6, 3) ), (5,8), (6,8), (5,2), (6,2), (5,6), (6,6), (5,0), (6,0).
- the RE corresponding to the port 0 to the port 7 is the same as the RE position mapped to the CSI-RS in FIG. 1C, and the RE corresponding to the port 8 to the port 11 and the RE in FIG. 1C.
- the four RE positions to which another set of CSI-RSs are mapped are moved to the same position after moving 4 symbols.
- the REs to which the first group of CSI-RSs are mapped in the order of port numbers from 0 to 11, including the following locations: RE: (2, 9), (3, 9), (2, 3), (3, 3) ), (2, 8), (3, 8), (2, 2), (3, 2), (2, 7), (3, 7), (2, 4), (3, 4).
- the REs corresponding to the ports 0 to 7 are the same as the positions where the REs mapped to the CSI-RSs in FIG. 1C are moved forward by 3 symbols, and the REs corresponding to the ports 8 to 11 are at the symbol 2 and the symbols.
- the frequency domain position on 3 is the same as the position of the REs on the symbols 5 and 6 in Fig. 1C that are not mapped by any reference signal in the frequency domain.
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 9), (6, 9), (5, 3), (6, 3) ), (5,8), (6,8),(5,2),(6,2),(5,7),(6,7), (5,4), (6,4).
- the REs corresponding to the ports 0 to 7 are the same as the positions where the REs mapped to the CSI-RSs in FIG. 1C are moved forward by 7 symbols, and the REs corresponding to the ports 8 to 11 are at the symbols 5 and symbols.
- the frequency domain position on 6 is the same as the position of the RE on the symbol 12 and the symbol 13 in Fig. 1C that is not mapped by any reference signal in the frequency domain.
- each of the two ports may be multiplexed with a 2-bit OCC, for example, may be multiplexed according to the manner shown in Table 1.
- Embodiment 3 describes another scheme for obtaining a 12-port reference signal pattern based on an 8-port reference signal pattern.
- FIG. 5A shows a 12 port reference signal pattern. It should be noted that FIG. 5A only shows a possible 12-port reference signal pattern. Based on the distribution rule of the aforementioned 12-port reference signal pattern, other 12-port reference signal patterns can also be obtained, which are not enumerated here.
- each square represents an RE
- the position of one RE can be represented by coordinates (x, y), where x represents a symbol number and y represents a subcarrier number.
- the value in each square represents the port number.
- FIG. 5A four sets of 12-port CSI-RS patterns are shown, which can be distributed according to the sixth distribution condition in the aforementioned 12-port reference signal pattern.
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 9), (6, 9), (9, 11), (10, 11) ), (5, 8), (6, 8), (9, 10), (10, 11), (5, 7), (6, 7), (9, 9), (10, 9).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the REs mapped to a group of CSI-RSs in FIG. 1C, and the REs corresponding to port 2, port 3, port 6, and port 7 are as shown in FIG. 1C.
- the REs of the other group of CSI-RSs are mapped to the same location, and the REs corresponding to ports 10 and 11 are the same as the REs mapped to the other group of CSI-RSs in FIG. 1C, and the REs corresponding to ports 8 and 9. Is the RE that is not mapped to any reference signal in Figure 1C.
- the second group of CSI-RSs, the third group of CSI-RSs, and the REs to which the fourth group of CSI-RSs are mapped in the 12-port reference signal pattern also conform to the above rules. Only the locations of the REs to which the second group of CSI-RSs, the third group of CSI-RSs, and the fourth group of CSI-RSs are mapped are given below:
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 4), (6, 4), (9, 8), (10, 8) ),(5,3),(6,3),(9,7),(10,7),(5,2),(6,2), (9,6), (10,6).
- the REs to which the third group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (12, 9), (13, 9), (9, 5), (10, 5) ), (12, 8), (13, 8), (9, 4), (10, 4), (12, 7), (13, 7), (9, 3), (10, 3).
- the REs to which the fourth group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (12, 4), (13, 4), (9, 2), (10, 2) ), (12, 3), (13, 3), (9, 1), (10, 1), (12, 2), (13, 2), (9, 0), (10, 0).
- the 12-port reference signal pilot pattern in the DwPTS region of the TDD subframe may also be obtained based on the above principle.
- FIG. 5B and 5C show a 12-port reference signal pattern in a DwPTS, respectively.
- the pattern shown in FIG. 5B is applicable to a DwPTS having a length of 11 symbols or 12 symbols
- the pattern shown in FIG. 5C is applicable to a DwPTS having a length of 9 symbols or 10 symbols.
- FIG. 5B and FIG. 5C only show two possible 12-port reference signal patterns. Based on the distribution pattern of the aforementioned 12-port reference signal pattern, other 12-port reference signal patterns can also be obtained, and no longer one by one. List.
- each square represents an RE
- the position of one RE can be represented by coordinates (x, y), where x represents a symbol number and y represents a subcarrier number.
- the value in each square represents the port number.
- FIG. 5B a pattern of four sets of 12-port CSI-RSs is shown.
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (2, 9), (3, 9), (5, 11), (6, 11) ), (2, 8), (3, 8), (5, 10), (6, 10), (2, 7), (3, 7), (5, 9), (5, 9).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the positions where the four RE locations mapped to a group of CSI-RSs in FIG. 1C are moved forward by 3 symbols, and port 2 and port 3 are The RE corresponding to port 6 and port 7 is the same as the position where 4 RE positions mapped to another CSI-RS in FIG.
- the second group of CSI-RSs, the third group of CSI-RSs, and the fourth group in the 12-port reference signal pattern also conforms to the above rules. Only the locations of the REs to which the second group of CSI-RSs, the third group of CSI-RSs, and the fourth group of CSI-RSs are mapped are given below:
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (2, 4), (3, 4), (5, 8), (6, 8) ), (2, 3), (3, 3), (5, 7), (6, 7), (2, 2), (3, 2), (5, 6), (5, 6).
- the REs to which the third group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 9), (10, 9), (5, 5), (6, 5) ), (9, 8), (10, 8), (5, 4), (6, 4), (9, 7), (10, 7), (5, 3), (6, 3).
- the REs to which the fourth group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 4), (10, 4), (5, 2), (6, 2) ), (9, 3), (10, 3), (5, 1), (6, 1), (9, 2), (10, 2), (5, 0), (6, 0).
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (2, 9), (3, 9), (5, 9), (6, 9) ), (2, 8), (3, 8), (5, 8), (6, 8), (2, 7), (3, 7), (5, 7), (6, 7).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the positions where the four RE locations mapped to a group of CSI-RSs in FIG. 1C are moved forward by 3 symbols, and port 2 and port 3 are The REs corresponding to the ports 6 and 7 are the same as the positions where the 4 RE positions mapped to the CSI-RS in FIG.
- the RE to which the second group of CSI-RSs in the 12-port reference signal pattern is mapped also conforms to the above rule. Only the locations of the REs to which the second set of CSI-RSs are mapped are given below:
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (2, 4), (3, 4), (5, 4), (6, 4) ), (2, 3), (3, 3), (5, 3), (6, 3), (2, 2), (3, 2), (5, 2), (6, 2).
- 4-port OCC can be multiplexed every 4 ports, for example, according to the manner shown in Table 2:
- Table 2 shows that CSI-RS port 0 to CSI-RS port 3 can be multiplexed using 4-bit OCC, and CSI-RS port 4 to CSI-RS port 7 can be multiplexed using 4-bit OCC, CSI-RS port 8 to The CSI-RS port 11 can be multiplexed using a 4-bit OCC.
- the embodiments of the present disclosure do not exclude that two of the 12 ports use 2-bit OCC multiplexing, and a certain four ports use 4-bit OCC multiplexing.
- Embodiments of the present disclosure do not exclude that a 12-port group employs 4-bit OCC multiplexing, while another 12-port group employs 2-bit OCC multiplexing.
- Embodiment 4 describes another scheme for obtaining a 12-port reference signal pattern based on an 8-port reference signal pattern.
- FIG. 6A shows a 12 port reference signal pattern. It should be noted that FIG. 6A only shows a possible 12-port reference signal pattern. Based on the distribution pattern of the aforementioned 12-port reference signal pattern, other 12-port reference signal patterns can also be obtained, which are not enumerated here.
- each square represents an RE
- the position of one RE can be represented by coordinates (x, y), where x represents a symbol number and y represents a subcarrier number.
- the value in each square represents the port number.
- a pattern of four sets of 12-port CSI-RSs is shown.
- the patterns of the first group, the second group, and the third group of CSI-RSs conform to the rule of the seventh distribution in the foregoing 12-port reference signal pattern, and the pattern of the fourth group of CSI-RSs conforms to the aforementioned 12-port reference signal pattern.
- the law of the eighth distribution situation is shown.
- the REs to which the first set of CSI-RSs are mapped in the order of port numbers from 0 to 11, including the following RE of position: (5,9), (6,9), (9,11), (10,11),(5,8),(6,8),(9,10),(10,11 ), (12, 9), (13, 9), (12, 8), (13, 8).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the REs mapped to a group of CSI-RSs in FIG. 1C, and the REs corresponding to port 2, port 3, port 6, and port 7 are as shown in FIG. 1C.
- the REs mapped to the other group of CSI-RSs are the same, and the REs corresponding to ports 8 to 11 are the same as the REs mapped to the other group of CSI-RSs in FIG. 1C.
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 3), (6, 3), (9, 1), (10, 1) ), (5, 2), (6, 2), (9, 0), (10, 0), (12, 3), (13, 3), (12, 2), (13, 2).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the REs mapped to a group of CSI-RSs in FIG. 1C, and the REs corresponding to port 2, port 3, port 6, and port 7 are as shown in FIG. 1C.
- the REs mapped to the other group of CSI-RSs are the same, and the REs corresponding to ports 8 to 11 are the same as the REs mapped to the other group of CSI-RSs in FIG. 1C.
- the REs to which the third group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 7), (10, 7), (9, 4), (10, 4) ), (9,6), (10,6), (9,3), (10,3), (9,5), (10,5), (9,2), (10,2).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the REs mapped to a group of CSI-RSs in FIG. 1C, and the REs corresponding to port 2, port 3, port 8, and port 9 are as shown in FIG. 1C.
- the REs mapped to the other group of CSI-RSs are the same, and the REs corresponding to port 7, port 7, port 10, port 11 are the same as the RE locations mapped to another group of CSI-RSs of FIG. 1C.
- the REs to which the fourth group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 7), (6, 7), (9, 9), (10, 9) ), (5, 4), (6, 4), (9, 8), (10, 8), (12, 7), (13, 7), (12, 4), (13, 4).
- the REs corresponding to the port 2, the port 3, the port 6, and the port 7 are the same as the REs mapped to the group of CSI-RSs in FIG. 1C, and the REs corresponding to the remaining ports are the REs mapped to the reference signal in FIG. 1C. .
- the 12-port reference signal pilot pattern in the DwPTS region of the TDD subframe may also be obtained based on the above principle.
- FIG. 6B shows a 12 port reference signal pattern in a DwPTS. It should be noted that FIG. 6B only shows a possible 12-port reference signal pattern. Based on the distribution of the aforementioned 12-port reference signal pattern, other 12-port reference signal patterns can also be obtained, which will not be enumerated here.
- each square represents an RE
- the position of an RE can be It is represented by coordinates (x, y), where x represents the symbol number and y represents the subcarrier number.
- the value in each square represents the port number.
- the figure shows four sets of 12-port CSI-RS patterns:
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (2, 9), (3, 9), (5, 11), (6, 11) ), (2, 8), (3, 8), (5, 10), (6, 10), (9, 9), (10, 9), (9, 8), (10, 8).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the positions where the four RE locations mapped to a group of CSI-RSs in FIG. 1C are moved forward by 3 symbols, and port 2 and port 3 are
- the RE corresponding to port 6 and port 7 is the same as the position where 4 RE positions mapped to a group of CSI-RSs in FIG. 1C are moved forward by 4 symbols, and the RE corresponding to port 8 to port 11 is the same as that of FIG. 1C.
- the two RE positions to which a group of CSI-RSs are mapped are moved to the same position after moving 3 symbols.
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (2, 3), (3, 3), (5, 1), (5, 1 ), (2, 2), (3, 2), (5, 0), (6, 0), (12, 3), (13, 3), (12, 2), (13, 2).
- the REs to which the third group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 7), (6, 7), (5, 4), (6, 4) ), (5,6), (6,6), (5,3), (6,3), (5,5), (6,5), (5,2), (6,2).
- the REs to which the fourth group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (2, 7), (3, 7), (5, 9), (6, 9) ), (2, 4), (3, 4), (5, 8), (6, 8), (9, 7), (10, 7), (9, 4), (10, 4).
- port 0, port 1, port 2, port 3, port 8, and port 9 corresponding to the first group of CSI-RSs are multiplexed by 6-bit OCC; the first group of CSI-RSs corresponds to Port 4, Port 5, Port 6, Port 7, Port 10, and Port 11 are multiplexed using a 6-bit OCC.
- This disclosure does not exclude that a 12-port group uses 6-bit OCC multiplexing, while another 12-port group uses 2-bit or 4-bit OCC multiplexing.
- Embodiment 5 describes a scheme for obtaining a 16-port reference signal pattern based on an 8-port reference signal pattern.
- FIGS. 7A, 7B, 7C, and 7D are distributed showing a 12-port reference signal pattern, wherein The patterns shown in FIGS. 7A and 7B are suitable for the case where symbol processing is performed using a short CP (Cyclic Prefix), and FIGS. 7C and 7D are applied to the case where symbol processing is performed using a long CP. It should be noted that these figures only show several possible 12-port reference signal patterns. Based on the distribution rule of the aforementioned 12-port reference signal pattern, other 12-port reference signal patterns can also be obtained, which will not be enumerated here.
- each square represents an RE
- the position of an RE can be represented by coordinates (x, y), where x represents a symbol number, and y represents a subcarrier. Numbering. The value in each square represents the port number.
- the figure shows two sets of 16-port CSI-RS patterns:
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 9), (6, 9), (5, 3), (6, 3) ),(5,8),(6,8),(5,2),(6,2),(9,11),(10,11),(9,5),(10,5), (9,10), (10,10), (9,4), (10,4).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the REs mapped to a group of CSI-RSs in FIG. 1C, and the REs corresponding to port 2, port 3, port 6, and port 7 are as shown in FIG. 1C.
- the other group of CSI-RSs are mapped to the same RE location, and the REs corresponding to port 8, port 9, port 12, and port 13 are the same as the REs mapped to another group of CSI-RSs in FIG. 1C, and the remaining ports are corresponding.
- the RE is the same as the RE location to which another set of CSI-RSs of Figure 1C are mapped.
- the REs to which the first group of CSI-RSs are mapped in the order of port numbers from 0 to 11, including the following locations: RE: (9, 9), (10, 9), (9, 3), (9, 3) ), (9,8), (9,8),(9,2),(9,2),(12,9),(13,9),(9,3),(10,3), (9,8), (10,8), (9,2), (10,2).
- the REs corresponding to port 0, port 1, port 4, and port 5 are the same as the REs mapped to a group of CSI-RSs in FIG. 1C, and the REs corresponding to port 2, port 3, port 6, and port 7 are as shown in FIG. 1C.
- the other group of CSI-RSs are mapped to the same RE location, and the REs corresponding to port 8, port 9, port 12, and port 13 are the same as the REs mapped to another group of CSI-RSs in FIG. 1C, and the remaining ports are corresponding.
- the RE is the same as the RE location to which another set of CSI-RSs of Figure 1C are mapped.
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 9), (6, 9), (5, 3), (6, 3) ),(5,8),(6,8),(5,2),(6,2),(9,9),(10,9),(9,3),(10,3), (9,8), (10,8), (9,2), (10,2).
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (9, 11), (10, 11), (9, 5), (10, 5) ),(9,10),(10,10),(9,4),(10,4),(12,9),(13,9),(12,3),(13,3), (12,8), (13,8), (12,2), (13,2).
- the figure shows two sets of 16-port CSI-RS patterns:
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including REs at the following locations: (4, 11), (5, 11), (4, 8), (5, 8) ), (4, 5), (5, 6), (4, 2), (5, 2), (10, 10), (11, 10), (10, 7), (11, 7), (10,4), (11,4), (10,1), (11,1).
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (4, 9), (5, 9), (4, 6), (5, 6) ), (4, 3), (5, 3), (4, 0), (5, 0), (10, 9), (11, 9), (10, 6), (11, 6), (10,3), (11,3), (10,0), (11,0).
- the REs to which the first group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including REs at the following locations: (4, 11), (5, 11), (4, 8), (5, 8) ), (4, 5), (5, 6), (4, 2), (5, 2), (10, 9), (11, 9), (10, 6), (11, 6), (10,3), (11,3), (10,0), (11,0).
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (4, 9), (5, 9), (4, 6), (5, 6) ), (4, 3), (5, 3), (4, 0), (5, 0), (10, 10), (11, 10), (10, 7), (11, 7), (10,4), (11,4), (10,1), (11,1).
- the 12-port reference signal pilot pattern in the DwPTS region of the TDD subframe may also be obtained based on the above principle.
- FIG. 7E and 7F show a 16-port reference signal pattern in the DwPTS. It should be noted that FIG. 7E only shows two possible 16-port reference signal patterns. Based on the distribution of the aforementioned 16-port reference signal pattern, other 16-port reference signal patterns can also be obtained, which are not enumerated here.
- each square represents an RE
- the position of one RE can be represented by coordinates (x, y), where x represents a symbol number and y represents a subcarrier number.
- the value in each square represents the port number.
- the REs to which the first group of CSI-RSs are mapped in the order of port numbers from 0 to 11, including the following locations: RE: (2, 9), (3, 9), (2, 3), (3, 3) ), (2, 8), (3, 8), (5, 2), (6, 2), (5, 11), (10, 11), (5, 5), (6, 5), (5,10), (6,10), (5,4), (6,4).
- the REs to which the second group of CSI-RSs are mapped are in the order of port numbers from 0 to 11, including the following locations: RE: (5, 9), (6, 9), (5, 3), (6, 3) ),(5,8),(6,8),(5,2),(6,2),(9,9),(10,9),(9,3),(10,3), (9,8), (10,8), (9,2), (10,2).
- the figure shows a set of 16-port CSI-RS patterns: REs including the following positions in the order of port numbers from 0 to 11: (2, 9), (3, 9), ( 2,3),(3,3),(2,8),(3,8),(2,2),(3,2),(5,9),(10,9),(5, 3), (6, 3), (5, 8), (6, 8), (5, 2), (6, 2).
- the 2-bit OCC can be multiplexed every 2 ports, for example, according to the manner shown in Table 3:
- Table 3 shows: CSI-RS port 0, CSI-RS port 1 uses 2-bit OCC multiplexing, CSI-RS port 4, CSI-RS port 5 uses 2-bit OCC multiplexing, CSI-RS port 2, CSI-RS port 3 uses 2-bit OCC multiplexing, and so on.
- each of the four ports may be multiplexed with a 2-bit OCC, for example, according to the manner shown in Table 4:
- Port 0, port 1, port 8, and port 9 are multiplexed with 4-bit OCC; port 4, port 5, port 12, and port 13 are multiplexed with 4-bit OCC; port 2, port 3, port 10, Port 11 uses 4-bit OCC multiplexing; port 6, port 7, port 14, and port 15 are 4OCC multiplexed.
- FIG. 7A is compared to FIG. 1C, a portion of REs are not mapped by CSI-RS, and the present disclosure does not exclude that RE locations that are not mapped appear elsewhere.
- Embodiments of the present disclosure do not exclude different port combinations and different orthogonal multiplexing codes.
- embodiments of the present disclosure do not exclude that two of the 16 ports use 2-bit OCC multiplexing, and a certain four ports use 4-bit OCC multiplexing. In addition, embodiments of the present disclosure do not exclude that a 16-port group employs 4-bit OCC multiplexing, while another 16-port group employs 2-bit OCC multiplexing.
- the embodiment of the present disclosure also provides a reference signal mapping device.
- FIG. 8 is a schematic structural diagram of a reference signal mapping apparatus according to an embodiment of the present disclosure, where the apparatus can implement the reference signal mapping process.
- the apparatus can include a determination module 81 and a mapping module 82.
- a determining module 81 configured to determine, according to the N-port reference signal pattern, an RE location to which the CSI-RS is mapped, where N is equal to 12 or 16; wherein the RE location to which the CSI-RS is mapped in the N-port reference signal pattern is Determined according to the RE position to which the CSI-RS is mapped according to one or more of the reference signal patterns in the 2-port, 4-port, and 8-port reference signal patterns.
- the mapping module 82 is configured to perform resource mapping on the CSI-RS according to the determined RE location.
- a position of at least a part of the REs to which a group of CSI-RSs is mapped is mapped with one or more groups of CSI-RSs in the 8-port reference signal pattern.
- the location of the RE is the same.
- the location of 8 REs and the first group of CSI-RSs in the 8-port reference signal pattern are mapped to The positions of the 8 REs are the same, and the positions of the remaining 4 REs include one of the following first to fifth distributions:
- the distribution of the remaining 4 REs is the same as the location of 4 REs to which a group of CSI-RSs in the 4-port reference signal pattern is mapped;
- the remaining 4 REs are REs of the 8-port reference signal pattern that are not mapped by any reference signals;
- the positions of the remaining 4 REs are the same as the positions of 4 REs of the REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped;
- the fourth distribution case in the remaining four REs, the location of the two REs is the same as the location of the two REs of the eight REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped.
- the positions of the other two REs are the same as the positions of the two REs of the eight REs to which the third group of CSI-RSs in the 8-port reference signal pattern are mapped;
- the location of 2 REs is the same as the location of 2 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped.
- the other two REs are REs of the 8-port reference signal pattern that are not mapped by any reference signals;
- the location of 4 REs and the first group of CSI-RSs in the 8-port reference signal pattern are mapped to The positions of the 4 REs of the 8 REs are the same, and the positions of the remaining 8 REs include one of the following sixth to ninth distributions:
- the location of 4 REs is the same as the location of 4 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped;
- the location of 2 REs is the same as the location of 2 REs of the 8 REs to which the third group of CSI-RSs in the 8-port reference signal pattern is mapped, and the other 2 REs are 8 ports.
- a seventh distribution case among the remaining 8 REs, the positions of 4 REs are the same as the positions of 4 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped, The positions of the other 4 REs are the same as the positions of 4 REs of the 8 REs to which the third group of CSI-RSs in the 8-port reference signal pattern are mapped;
- the eighth distribution case in the remaining 8 REs, the location of 4 REs is the same as the position of 4 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped, The other four REs are REs of the 8-port reference signal pattern that are not mapped by any reference signals;
- the remaining 8 REs are REs in the 8-port reference signal pattern that are not mapped by any reference signals.
- the positions of 8 REs are mapped with the first group of CSI-RSs in the 8-port reference signal pattern.
- the positions of the 8 REs are the same, and the positions of the remaining 8 REs are the same as the positions of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped.
- N REs to which a group of CSI-RSs are mapped are located in the same column symbol or in different column symbols, wherein each column symbol includes 2 adjacent symbols.
- the demodulation reference signal DM-RS is not transmitted, according to the N port reference signal pattern, among the N REs to which a group of CSI-RSs are mapped, some REs are mapped to the DM-RS to be mapped. Go to the RE location.
- At least two of the N ports corresponding to a group of CSI-RSs are multiplexed by using a 2-bit orthogonal spreading code, or at least 4 ports are 4
- the bit orthogonal spreading codes are multiplexed, or at least six ports are multiplexed using a 6-bit orthogonal spreading code.
- the N port reference signal pattern includes an N port reference signal pattern of the DwPTS.
- FIG. 9 is a schematic structural diagram of a network side device (for example, a base station) according to an embodiment of the present disclosure, where the base station can implement the reference signal mapping process.
- a network side device for example, a base station
- the network side device may include a processor 901, a memory 902, a transceiver 903, and a bus interface.
- the processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 can store data used by the processor 901 in performing operations.
- the transceiver 903 is configured to receive and transmit data under the control of the processor 901.
- the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 901 and various circuits of memory represented by memory 902.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
- the bus interface provides an interface.
- Transceiver 903 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
- the processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 can store data used by the processor 901 in performing operations.
- the data transmission procedure on the network side disclosed in the embodiment of the present disclosure may be applied to the processor 901 or implemented by the processor 901.
- the steps of the data transmission process can be The integrated logic circuit of the hardware in the processor 901 or the instruction in the form of software is completed.
- the processor 901 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or perform embodiments of the present disclosure.
- a general purpose processor can be a microprocessor or any conventional processor or the like.
- the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly embodied as hardware processor execution completion or performed in combination with hardware and software modules in a processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902, and combines its hardware to complete the steps of the processing method of the control plane.
- the processor 901 is configured to read a program in the memory 902 and perform the following process:
- N is equal to 12 or 16; wherein the RE location to which the CSI-RS is mapped in the N-port reference signal pattern is based on the 2-port, 4-port Determining the location of the RE to which the CSI-RS is mapped in one or more reference signal patterns in the 8-port reference signal pattern; and performing resource mapping on the CSI-RS according to the determined RE location.
- a position of at least a part of the REs to which a group of CSI-RSs is mapped is mapped with one or more groups of CSI-RSs in the 8-port reference signal pattern.
- the location of the RE is the same.
- the location of 8 REs and the first group of CSI-RSs in the 8-port reference signal pattern are mapped to The positions of the 8 REs are the same, and the positions of the remaining 4 REs include one of the following first to fifth distributions:
- the distribution of the remaining 4 REs is the same as the location of 4 REs to which a group of CSI-RSs in the 4-port reference signal pattern is mapped;
- the remaining 4 REs are REs of the 8-port reference signal pattern that are not mapped by any reference signals;
- the positions of the remaining 4 REs are the same as the positions of 4 REs of the REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped;
- the fourth distribution case in the remaining four REs, the location of the two REs is the same as the location of the two REs of the eight REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped.
- the positions of the other two REs are the same as the positions of the two REs of the eight REs to which the third group of CSI-RSs in the 8-port reference signal pattern are mapped;
- the location of 2 REs is the same as the location of 2 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped.
- the other two REs are REs of the 8-port reference signal pattern that are not mapped by any reference signals;
- the location of 4 REs and the first group of CSI-RSs in the 8-port reference signal pattern are mapped to The positions of the 4 REs of the 8 REs are the same, and the positions of the remaining 8 REs include one of the following sixth to ninth distributions:
- the location of 4 REs is the same as the location of 4 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped;
- the location of 2 REs is the same as the location of 2 REs of the 8 REs to which the third group of CSI-RSs in the 8-port reference signal pattern is mapped, and the other 2 REs are 8 ports.
- a seventh distribution case among the remaining 8 REs, the positions of 4 REs are the same as the positions of 4 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped, The positions of the other 4 REs are the same as the positions of 4 REs of the 8 REs to which the third group of CSI-RSs in the 8-port reference signal pattern are mapped;
- the eighth distribution case in the remaining 8 REs, the location of 4 REs is the same as the position of 4 REs of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern is mapped, The other four REs are REs of the 8-port reference signal pattern that are not mapped by any reference signals;
- the remaining 8 REs are REs in the 8-port reference signal pattern that are not mapped by any reference signals.
- the location of 8 REs and the first group of CSI-RSs in the 8-port reference signal pattern are mapped to The positions of the 8 REs are the same, and the positions of the remaining 8 REs are the same as the positions of the 8 REs to which the second group of CSI-RSs in the 8-port reference signal pattern are mapped.
- N REs to which a group of CSI-RSs are mapped are located in the same column symbol or in different column symbols, wherein each column symbol includes 2 adjacent symbols.
- the demodulation reference signal DM-RS is not transmitted, according to the N port reference signal pattern, among the N REs to which a group of CSI-RSs are mapped, some REs are mapped to the DM-RS to be mapped. Go to the RE location.
- At least two of the N ports corresponding to a group of CSI-RSs are multiplexed by using a 2-bit orthogonal spreading code, or at least 4 ports are 4
- the bit orthogonal spreading codes are multiplexed, or at least six ports are multiplexed using a 6-bit orthogonal spreading code.
- the N port reference signal pattern includes an N port reference signal pattern of the DwPTS.
- embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
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Claims (20)
- 一种参考信号映射方法,包括:根据N端口参考信号图样,确定信道状态信息参考信号CSI-RS被映射到的资源单元RE位置,N等于12或16;其中,所述N端口参考信号图样中CSI-RS被映射到的RE位置是根据2端口、4端口、8端口参考信号图样中的一种或多种参考信号图样中CSI-RS被映射到的RE位置确定的;以及根据确定出的RE位置对CSI-RS进行资源映射。
- 如权利要求1所述的方法,其中,在所述N端口参考信号图样中,一组CSI-RS被映射到的N个RE中,至少有一部分RE的位置与8端口参考信号图样中的一组或多组CSI-RS被映射到的RE的位置相同。
- 如权利要求2所述的方法,其中,在所述12端口参考信号图样中,一组CSI-RS被映射到的12个RE中,有8个RE的位置与8端口参考信号图样中的第一组CSI-RS被映射到的8个RE的位置相同,其余4个RE的位置包括以下第一分布情况至第五分布情况中的一种:第一分布情况:所述其余4个RE的分布与4端口参考信号图样中的一组CSI-RS被映射到的4个RE的位置相同;第二分布情况:所述其余4个RE为8端口参考信号图样中未被任何参考信号映射到的RE;第三分布情况:所述其余4个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的RE中的4个RE的位置相同;第四分布情况:在所述其余4个RE中,有2个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的2个RE的位置相同,另外2个RE的位置与8端口参考信号图样中的第三组CSI-RS被映射到的8个RE中的2个RE的位置相同;以及第五分布情况:在所述其余4个RE中,有2个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的2个RE的位置相同,另外2个RE为8端口参考信号图样中未被任何参考信号映射到的RE;或者,在所述12端口参考信号图样中,一组CSI-RS被映射到的12个 RE中,有4个RE的位置与8端口参考信号图样中的第一组CSI-RS被映射到的8个RE中的4个RE的位置相同,其余8个RE的位置包括以下第六分布情况至第九分布情况中的一种:第六分布情况:在所述其余8个RE中,有4个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的4个RE的位置相同;在另外4个RE中,有2个RE的位置与8端口参考信号图样中的第三组CSI-RS被映射到的8个RE中的2个RE的位置相同,另外2个RE为8端口参考信号图样中未被任何参考信号映射到的RE;第七分布情况:在所述其余8个RE中,有4个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的4个RE的位置相同,另外4个RE的位置与8端口参考信号图样中的第三组CSI-RS被映射到的8个RE中的4个RE的位置相同;第八分布情况:在所述其余8个RE中,有4个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的4个RE的位置相同,另外4个RE为8端口参考信号图样中未被任何参考信号映射到的RE;以及第九分布情况:所述其余8个RE为8端口参考信号图样中未被任何参考信号映射到的RE。
- 如权利要求2所述的方法,其中,所述16端口参考信号图样中,一组CSI-RS被映射到的16个RE中,有8个RE的位置与8端口参考信号图样中的第一组CSI-RS被映射到的8个RE的位置相同,其余8个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE的位置相同。
- 如权利要求1至4中任一项所述的方法,其中,在所述N端口参考信号图样中,一组CSI-RS被映射到的N个RE位于同一列符号或者位于不同列符号,其中,每列符号包含2个相邻符号。
- 如权利要求1至4中任一项所述的方法,其中,若不发送解调参考信号DM-RS,则根据所述N端口参考信号图样,一组CSI-RS被映射到的N个RE中,有部分RE被映射到所述DM-RS被映射到的RE位置上。
- 如权利要求1至4中任一项所述的方法,其中,在所述N端口参考信号图样中,一组CSI-RS对应的N个端口中,至少有2个端口采用2位正 交扩频码进行复用,或者,至少有4个端口采用4位正交扩频码进行复用,或者,至少有6个端口采用6位正交扩频码进行复用。
- 如权利要求7所述的方法,其中,在所述N端口参考信号图样中,每2个端口采用2位正交扩频码进行复用;或者每4个端口采用4位正交扩频码进行复用;或者每6个端口采用6位正交扩频码进行复用。
- 如权利要求1至4中任一项所述的方法,其中,在所述N端口参考信号图样中,第一组CSI-RS对应的N个端口所采用的正交扩频码的位数,与第二组CSI-RS对应的N个端口所采用的正交扩频码的位数相同或不同。
- 如权利要求1至7中任一项所述的方法,其中,所述N端口参考信号图样包括下行特殊时隙DwPTS的N端口参考信号图样。
- 一种参考信号映射装置,包括:确定模块,用于根据N端口参考信号图样,确定信道状态信息参考信号CSI-RS被映射到的资源单元RE位置,N等于12或16;其中,所述N端口参考信号图样中CSI-RS被映射到的RE位置是根据2端口、4端口、8端口参考信号图样中的一种或多种参考信号图样中CSI-RS被映射到的RE位置确定的;以及映射模块,用于根据确定出的RE位置对CSI-RS进行资源映射。
- 如权利要求11所述的装置,其中,在所述N端口参考信号图样中,一组CSI-RS被映射到的N个RE中,至少有一部分RE的位置与8端口参考信号图样中的一组或多组CSI-RS被映射到的RE的位置相同。
- 如权利要求12所述的装置,其中,在所述12端口参考信号图样中,一组CSI-RS被映射到的12个RE中,有8个RE的位置与8端口参考信号图样中的第一组CSI-RS被映射到的8个RE的位置相同,其余4个RE的位置包括以下第一分布情况至第五分布情况中的一种:第一分布情况:所述其余4个RE的分布与4端口参考信号图样中的一组CSI-RS被映射到的4个RE的位置相同;第二分布情况:所述其余4个RE为8端口参考信号图样中未被任何参考信号映射到的RE;第三分布情况:所述其余4个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的RE中的4个RE的位置相同;第四分布情况:在所述其余4个RE中,有2个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的2个RE的位置相同,另外2个RE的位置与8端口参考信号图样中的第三组CSI-RS被映射到的8个RE中的2个RE的位置相同;以及第五分布情况:在所述其余4个RE中,有2个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的2个RE的位置相同,另外2个RE为8端口参考信号图样中未被任何参考信号映射到的RE;或者,在所述12端口参考信号图样中,一组CSI-RS被映射到的12个RE中,有4个RE的位置与8端口参考信号图样中的第一组CSI-RS被映射到的8个RE中的4个RE的位置相同,其余8个RE的位置包括以下第六分布情况至第九分布情况中的一种:第六分布情况:在所述其余8个RE中,有4个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的4个RE的位置相同;在另外4个RE中,有2个RE的位置与8端口参考信号图样中的第三组CSI-RS被映射到的8个RE中的2个RE的位置相同,另外2个RE为8端口参考信号图样中未被任何参考信号映射到的RE;第七分布情况:在所述其余8个RE中,有4个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的4个RE的位置相同,另外4个RE的位置与8端口参考信号图样中的第三组CSI-RS被映射到的8个RE中的4个RE的位置相同;第八分布情况:在所述其余8个RE中,有4个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE中的4个RE的位置相同,另外4个RE为8端口参考信号图样中未被任何参考信号映射到的RE;第九分布情况:所述其余8个RE为8端口参考信号图样中未被任何参考信号映射到的RE。
- 如权利要求12所述的装置,其中,所述16端口参考信号图样中,一组CSI-RS被映射到的16个RE中,有8个RE的位置与8端口参考信号图 样中的第一组CSI-RS被映射到的8个RE的位置相同,其余8个RE的位置与8端口参考信号图样中的第二组CSI-RS被映射到的8个RE的位置相同。
- 如权利要求11至14中任一项所述的装置,其中,在所述N端口参考信号图样中,一组CSI-RS被映射到的N个RE位于同一列符号或者位于不同列符号,其中,每列符号包含2个相邻符号。
- 如权利要求11至14中任一项所述的装置,其中,若不发送解调参考信号DM-RS,则根据所述N端口参考信号图样,一组CSI-RS被映射到的N个RE中,有部分RE被映射到所述DM-RS被映射到的RE位置上。
- 如权利要求11至14中任一项所述的装置,其中,在所述N端口参考信号图样中,一组CSI-RS对应的N个端口中,至少有2个端口采用2位正交扩频码进行复用,或者,至少有4个端口采用4位正交扩频码进行复用,或者,至少有6个端口采用6位正交扩频码进行复用。
- 如权利要求11至14中任一项所述的装置,其中,所述N端口参考信号图样包括下行特殊时隙DwPTS的N端口参考信号图样。
- 一种网络侧设备,包括:处理器;以及存储器,通过总线接口与所述处理器相连接,并且用于存储所述处理器在执行操作时所使用的程序和数据;收发机,用于在传输介质上与各种其他设备进行通信,当处理器调用并执行所述存储器中所存储的程序和数据时,所述网络侧设备执行如下处理:根据N端口参考信号图样,确定信道状态信息参考信号CSI-RS被映射到的资源单元RE位置,N等于12或16;其中,所述N端口参考信号图样中CSI-RS被映射到的RE位置是根据2端口、4端口、8端口参考信号图样中的一种或多种参考信号图样中CSI-RS被映射到的RE位置确定的;以及根据确定出的RE位置对CSI-RS进行资源映射。
- 如权利要求19所述的网络侧设备,其中,所述网络侧设备是LTE***中的基站。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/747,753 US10735158B2 (en) | 2015-07-27 | 2016-06-20 | Reference signal mapping method and device |
JP2018504091A JP6618607B2 (ja) | 2015-07-27 | 2016-06-20 | 参照信号マッピング方法および装置 |
EP16829708.3A EP3331296B1 (en) | 2015-07-27 | 2016-06-20 | Reference signal mapping method and device |
KR1020187004406A KR102103655B1 (ko) | 2015-07-27 | 2016-06-20 | 참고신호 맵핑 방법 및 장치 |
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CN108809503B (zh) | 2017-05-05 | 2023-10-20 | 华为技术有限公司 | 一种参考信号图样的传输方法及其装置 |
CN108989008B (zh) * | 2017-06-05 | 2021-12-14 | 华为技术有限公司 | 参考信号的传输方法、装置和设备 |
CN109150428B (zh) * | 2017-06-15 | 2020-07-24 | 电信科学技术研究院 | 一种信号传输方法、装置及基站 |
CN109391411B (zh) * | 2017-08-10 | 2021-03-02 | 电信科学技术研究院 | 一种导频配置方法、信道测量方法及通信设备 |
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