WO2016026357A1 - 一种传输csi-rs的方法、设备和系统 - Google Patents
一种传输csi-rs的方法、设备和系统 Download PDFInfo
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- WO2016026357A1 WO2016026357A1 PCT/CN2015/083653 CN2015083653W WO2016026357A1 WO 2016026357 A1 WO2016026357 A1 WO 2016026357A1 CN 2015083653 W CN2015083653 W CN 2015083653W WO 2016026357 A1 WO2016026357 A1 WO 2016026357A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. 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
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Definitions
- the present disclosure relates to the field of wireless communication technologies, and in particular, to a method, device, and system for transmitting a CSI-RS (Channel State Information Reference Signal).
- CSI-RS Channel State Information Reference Signal
- Small cell With the development of technology and the explosive growth of data services, more and more low-power base stations such as Pico cells and Home NodeBs are deployed to provide local small coverage. These base stations can be collectively referred to as Small cell (small cell). Deploying a small cell not only extends the coverage of the Macro cell, but also improves the throughput in a specific area. Generally, the more small cells are deployed on the network, the more user devices can be served by the small cell, and the performance gain brought by the small cell is enjoyed, so that the overall throughput of the network is greatly improved. It can be expected that in an actual network, it is likely that a large number of small cells are densely deployed in a geographical area where business demand is concentrated.
- multiple small cells may use independent cell identifiers (IDs), or multiple adjacent transmission points (TPs) share the same cell ID.
- IDs independent cell identifiers
- TPs adjacent transmission points
- the signal contains PSS (Primary) Synchronized Signal (Synchronized Signal)/SSS (Secondary Synchronization Signal)/CRS (Cell-specific reference signals), and CSI-RS can be additionally configured for the identification of small cells/TP.
- PSS Primary
- Synchronized Signal Synchronized Signal
- SSS Secondary Synchronization Signal
- CRS Cell-specific reference signals
- CSI-RS can be additionally configured for the identification of small cells/TP.
- the length of the signal is limited to 5 ms or less.
- the small cell may be deployed in a densely deployed or even intensively deployed manner.
- the discovery signal transmission time of up to 5 ms is only Subframe 0 or subframe 5 can configure CSI-RS transmission, but subframe 0 or subframe 5 cannot transmit CSI due to a symbol that conflicts with a signal (channel) such as PSS/SSS/PBCH (Physical Broadcast Channel).
- -RS which makes the resource allocation of the CSI-RS transmission limited.
- subframe 5 can configure up to 16 single-antenna port CSI-RS resources, and subframe 0 can only configure 4 single-antenna port CSI-RS resources.
- the resources for configuring CSI-RS in the discovery signal burst are relatively small.
- the present disclosure provides a method, a device, and a system for transmitting a CSI-RS, which are used to solve the problem that the resources of the CSI-RS that can be configured in the discovery signal burst of the TDD are relatively small in the prior art.
- the network side device determines to send the CSI-RS to the user equipment in the special subframe
- the network side device selects, in the CSI-RS pilot resource mapping pattern in the special subframe, a resource unit RE corresponding to the CSI-RS pilot resource configuration as the RE carrying the CSI-RS;
- the network side device sends the CSI-RS by using the determined RE.
- the channel CSI-RS pilot pattern is added in the special subframe, thereby increasing the number of configurations of the CSI-RS as the discovery signal in the discovery signal burst of the TDD; further Can improve system performance.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- the network side device selects one CSI-RS pilot resource configuration in the CSI-RS pilot resource mapping pattern in the special subframe, the network side device further includes:
- the network side device notifies the configuration information of the CSI-RS pilot resource in the special subframe of the user equipment.
- the user equipment receives the pilot resource configuration information of the CSI-RS transmitted by the network side device in the special subframe;
- the user equipment receives the CSI-RS on the RE resource determined according to the configuration information of the pilot resource that receives the CSI-RS.
- the channel CSI-RS pilot pattern is added in the special subframe, thereby increasing the number of configurations of the CSI-RS as the discovery signal in the discovery signal burst of the TDD; further Can improve system performance.
- the pilot resource of the CSI-RS is configured as a resource configuration selected in a CSI-RS pilot resource mapping pattern in a special subframe.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- a determining module configured to determine to send a CSI-RS to the user equipment in the special subframe
- a selecting module configured to select, in a CSI-RS pilot resource mapping pattern in the special subframe, a resource unit RE corresponding to a CSI-RS pilot resource configuration as an RE carrying a CSI-RS;
- a sending module configured to send the CSI-RS by using the determined RE.
- the channel CSI-RS pilot pattern is added in the special subframe, thereby increasing the number of configurations of the CSI-RS as the discovery signal in the discovery signal burst of the TDD; further Can improve system performance.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the CSI-RS pilot resource mapping specified by the 3GPP TS 36.211 protocol version 11 includes: a pattern corresponding to the CSI-RS pilot resource mapping pattern specified in the 3GPP TS 36.211 protocol version 11 on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- the sending module is further configured to:
- a receiving module configured to receive pilot resource configuration information of a CSI-RS transmitted by the network side device in a special subframe
- a processing module configured to receive the CSI-RS on the RE resource determined according to the configuration information of the pilot resource that receives the CSI-RS.
- the channel CSI-RS pilot pattern is added in the special subframe, thereby increasing the number of configurations of the CSI-RS as the discovery signal in the discovery signal burst of the TDD; further Can improve system performance.
- the pilot resource of the CSI-RS is configured as a resource configuration selected in a CSI-RS pilot resource mapping pattern in a special subframe.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- the present disclosure provides a system for transmitting a channel state information measurement reference signal CSI-RS, including:
- the network side device includes:
- a determining module configured to determine to send a CSI-RS to the user equipment in the special subframe
- a selection module configured to select one of CSI-RS pilot resource mapping patterns in a special subframe
- the resource unit RE corresponding to the CSI-RS pilot resource configuration is used as the RE carrying the CSI-RS;
- a sending module configured to send the CSI-RS by using the determined RE
- the user equipment includes:
- a receiving module configured to receive pilot resource configuration information of a CSI-RS transmitted by the network side device in a special subframe
- a processing module configured to receive the CSI-RS on the RE resource determined according to the pilot resource configuration information of the received CSI-RS.
- the resource element RE corresponding to the CSI-RS pilot resource configuration is selected as the RE carrying the CSI-RS, and the determined RE is determined by the network side device in the specific subframe.
- Sending the CSI-RS since the embodiment of the present disclosure transmits the CSI-RS in the special subframe, the channel CSI-RS pilot pattern is added in the special subframe, thereby increasing the number of configurations of the CSI-RS as the discovery signal in the discovery signal burst of the TDD; further Can improve system performance.
- FIG. 1 is a schematic structural diagram of a system for transmitting a CSI-RS according to an embodiment of the present disclosure
- FIG. 2 is a schematic diagram of a CSI-RS pilot pattern in special subframe configurations 1, 2, 6, and 7 according to Embodiment 2 of the present disclosure
- FIG. 3 is a schematic diagram of a CSI-RS pilot pattern in special subframe configurations 3, 4, and 8 according to Embodiment 3 of the present disclosure
- FIG. 4 is a schematic diagram of a CSI-RS pilot pattern in special subframe configurations 1, 2, 6, and 7 according to Embodiment 4 of the present disclosure
- FIG. 5 is a schematic diagram of a CSI-RS pilot pattern in special subframe configurations 2 and 7 according to Embodiment 5 of the present disclosure
- FIG. 6 is a schematic diagram of a CSI-RS pilot pattern in special subframe configurations 3, 4, and 8 according to Embodiment 6 of the present disclosure
- FIG. 7 is a schematic diagram of a CSI-RS pilot pattern in a special subframe configuration 9 according to Embodiment 7 of the present disclosure
- FIG. 8 is a schematic structural diagram of a network side device in a system for transmitting a CSI-RS according to Embodiment 8 of the present disclosure
- FIG. 9 is a schematic structural diagram of user equipment in a system for transmitting a CSI-RS according to Embodiment 9 of the present disclosure.
- FIG. 10 is a schematic structural diagram of a network side device in a system for transmitting a CSI-RS according to an embodiment of the present disclosure
- FIG. 11 is a schematic structural diagram of user equipment in a system for transmitting a CSI-RS according to Embodiment 11 of the present disclosure
- FIG. 12 is a schematic flowchart of a method for transmitting a CSI-RS according to Embodiment 12 of the present disclosure
- FIG. 13 is a schematic flowchart of a method for transmitting a CSI-RS according to Embodiment 13 of the present disclosure.
- the resource element RE corresponding to the CSI-RS pilot resource configuration is selected as the RE carrying the CSI-RS, and the determined RE is determined by the network side device in the specific subframe.
- Sending the CSI-RS since the embodiment of the present disclosure transmits the CSI-RS in the special subframe, the channel CSI-RS pilot pattern is added in the special subframe, thereby increasing the number of configurations of the CSI-RS as the discovery signal in the discovery signal burst of the TDD; further Can improve system performance.
- a system for transmitting a CSI-RS according to Embodiment 1 of the present disclosure includes: a network side device 10 and a user equipment 11.
- the network side device 10 is configured to determine to send a CSI-RS to the user equipment in the special subframe, and select a resource corresponding to the CSI-RS pilot resource configuration in the CSI-RS pilot resource mapping pattern in the special subframe.
- the unit RE is the RE that carries the CSI-RS, and sends the CSI-RS by using the determined RE;
- the user equipment 11 is configured to receive pilot resource configuration information of a CSI-RS transmitted by the network side device in a special subframe, and on the RE resource determined according to the configuration information of the pilot resource that receives the CSI-RS, Receive CSI-RS.
- the CSI-RS of the embodiment of the present disclosure includes, but is not limited to, a discovery signal of a small cell or a TP, and measures the transmitted signal.
- the network side device may determine, according to the specific configuration of the CSI-RS, whether to send the CSI-RS to the user equipment in the special subframe;
- the network side device may also determine to send the CSI-RS to the user equipment in the special subframe when the CSI-RS configuration of the other downlink subframes is insufficient.
- the network side device may further notify the RE of the CSI-RS in the special subframe of the user equipment after determining the RE that carries the CSI-RS in the special subframe, for example, by using RRC signaling;
- the user equipment determines that the CSI-RS is sent to the user equipment in the special subframe, and determines the RE resource according to the configuration information of the pilot resource of the received CSI-RS.
- the pilot resource of the CSI-RS is configured as a resource configuration selected in a CSI-RS pilot resource mapping pattern in a special subframe.
- the network side device selects the CSI-RS pilot resource configuration, it can select it according to needs or randomly.
- the network side device 10 determines that there are many ways to carry the CSI-RS RE in the special subframe, and several are listed below.
- Manner 1 The existing CSI-RS pilot resource mapping pattern is used, but the RE resources occupied by the downlink user-specific pilots need to be removed.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the part of the pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: the CSI-RS guide specified in the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pairs are also different for different special subframe configurations, and several are listed below.
- CP Cyclic Prefix
- the partial symbol pair is a symbol pair composed of a sixth symbol and a seventh symbol, and a tenth symbol and an eleventh a pair of symbols formed by symbols;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- RE pairs in the above examples are merely examples, and the embodiments of the present disclosure are not limited to the RE pairs in the above examples, and other RE pairs are also applicable to the embodiments of the present disclosure.
- Manner 2 In the special subframe, except for the symbols other than the symbols occupied by the PDCCH (Physical Downlink Control Channel), the PSS, and the CRS, the symbol pair of the CSI-RS transmission is selected, and the symbol pair is removed. RE resources occupied by user-specific pilots.
- PDCCH Physical Downlink Control Channel
- PSS Physical Downlink Control Channel
- CRS Physical Downlink Control Channel
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is the fifth symbol and the sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are a fourth symbol and a sixth symbol, and 7 symbols and 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, and the two pairs of symbols are a sixth symbol and a seventh symbol. And the 10th symbol and the 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and the pair of symbols is a fourth symbol and a sixth symbol.
- RE pairs in the above examples are merely examples, and the embodiments of the present disclosure are not limited to the RE pairs in the above examples, and other RE pairs are also applicable to the embodiments of the present disclosure.
- one subframe or special subframe is marked with the first symbol from the left as the first symbol, and the second symbol from the left is labeled as the second symbol, and so on.
- the following describes several ways to use the existing CSI-RS pilot resource mapping pattern, but need to remove the RE resources occupied by the downlink user-specific pilots.
- the CSI-RS pilot resource mapping pattern specified in the 3GPP TS 36.211 protocol version 11 can be used on the 6th and 7th symbols of the special subframe.
- the CSI-RS is transmitted on other REs occupied by the downlink user-specific pilots, and the occupied resource pattern is as shown in FIG. 2.
- CSI-RS transmission is performed using one antenna port or two antenna ports, four CSI-RS configurations can be supported, which are respectively mapped to 1, 2, 3, 4, and 4 RE pairs, that is, 1 in the figure. And 1, 2 and 2, 3 and 3, 4 and 4 constitute 4 RE pairs.
- antenna ports CSI-RS When four antenna ports CSI-RS are used for transmission, they can be mapped to resource pairs labeled ⁇ 1, 3 ⁇ or ⁇ 2, 4 ⁇ , respectively, to form two types of four-antenna port configurations.
- antenna ports When eight antenna ports are used for CSI-RS transmission, they can be mapped to resources labeled as ⁇ 1, 2, 3, and 4 ⁇ in the figure to form an 8-antenna port CSI-RS resource configuration.
- CSI-RS pilot resources specified in 3GPP TS 36.211 protocol version 11 can be used on the sixth, seventh, and tenth and eleventh symbols of the special subframe.
- the CSI-RS is transmitted on other REs occupied by the downlink user-specific pilots, and the occupied resource pattern is as shown in FIG. 3.
- antenna ports When four antenna ports are used for CSI-RS transmission, they can be mapped to resource pairs labeled ⁇ 1, 3 ⁇ , ⁇ 2, 4 ⁇ , ⁇ 5, 9 ⁇ , ⁇ 6, 10 ⁇ , respectively, to form 4 types of 4 Antenna port configuration.
- 8 antenna ports for CSI-RS transmission When using 8 antenna ports for CSI-RS transmission, they can be mapped to resources labeled ⁇ 1, 2, 3, 4 ⁇ , ⁇ 5, 6, 9, 10 ⁇ in the figure to form two 8-antenna ports CSI- RS resource configuration.
- the pilot pattern of the CSI-RS pilot specified by the 3GPP TS 36.211 protocol version 11 in the case of the extended CP can be used in the special subframe, and the CSI-defined by the 3GPP TS 36.211 protocol version 11
- the RS pilot pattern does not conflict with the RE occupied by the downlink user-specific pilot signals in the special subframe.
- the REs in the foregoing examples or the REs in a group are only examples, and the embodiments of the present disclosure are not limited to the RE combinations in the foregoing examples, and other paired REs or grouped REs are also The embodiments of the present disclosure are equally applicable.
- the following is a method for selecting a symbol pair of a CSI-RS transmission on a symbol other than the symbol occupied by the PDCCH, the PSS, and the CRS in the special subframe, and removing the RE resource occupied by the user-specific pilot on the symbol pair.
- the CSI-RS is transmitted on the REs of the special subframe except the RE carrying the downlink user-specific pilot.
- the resource diagram is shown in Figure 4.
- CSI-RS transmission is performed using one antenna port or two antenna ports, six CSI-RS configurations can be supported and mapped to RE pairs labeled 1 to 6, respectively.
- CSI-RS transmission When CSI-RS transmission is performed using four antenna ports, they can be mapped to resource pairs labeled ⁇ 1, 5 ⁇ , ⁇ 2, 6 ⁇ , respectively, to constitute two types of four-antenna port configurations.
- antenna ports When four antenna ports are used for CSI-RS transmission, they can be mapped to resource pairs labeled ⁇ 1, 5 ⁇ , ⁇ 2, 6 ⁇ , ⁇ 7, 11 ⁇ , ⁇ 8, 12 ⁇ , respectively, to form 4 types of 4 Antenna port configuration.
- 8 antenna ports When 8 antenna ports are used for CSI-RS transmission, they can be mapped to resources labeled ⁇ 1, 2, 5, 6 ⁇ , ⁇ 7, 8, 11, 12 ⁇ in the figure to form two 8-antenna ports CSI- RS resource configuration.
- CSI-RS transmission When CSI-RS transmission is performed using 4 antenna ports, it can be mapped to labels ⁇ 1, 7 ⁇ , ⁇ 2, 8 ⁇ , ⁇ 3, 9 ⁇ , ⁇ 4, 10 ⁇ , ⁇ 5, 11 ⁇ , ⁇ 6, respectively.
- the resource pairs of 12 ⁇ , ⁇ 13, 17 ⁇ , and ⁇ 14, 18 ⁇ constitute eight types of 4-antenna port configurations.
- 8 antenna ports for CSI-RS transmission When using 8 antenna ports for CSI-RS transmission, they can be mapped to ⁇ 1, 2, 7, 8 ⁇ , ⁇ 3, 4, 9, 10 ⁇ , ⁇ 5, 6, 11, 12 ⁇ , respectively.
- the resources of ⁇ 13, 14, 17, 18 ⁇ constitute four kinds of 8-antenna port CSI-RS resource configurations.
- the CSI-RS may be transmitted on the symbol pairs of the 4th and 6th consecutive non-contiguous symbols, except for the REs carrying the downlink user-specific pilots.
- the resource pattern is shown in Figure 7.
- CSI-RS transmission is performed using one antenna port or two antenna ports, six CSI-RS configurations can be supported, which are respectively mapped to RE pairs labeled 1 to 6.
- CSI-RS transmission When CSI-RS transmission is performed using four antenna ports, they can be mapped to resource pairs labeled ⁇ 1, 5 ⁇ , ⁇ 2, 6 ⁇ , respectively, to constitute two types of four-antenna port configurations.
- the REs in the foregoing examples or the REs in a group are only examples, and the embodiments of the present disclosure are not limited to the RE combinations in the foregoing examples, and other paired REs or grouped REs are also The embodiments of the present disclosure are equally applicable.
- the network side device in the system for transmitting CSI-RS includes: a determining module 800, a selecting module 810, and a sending module 820.
- a determining module 800 configured to determine to send a CSI-RS to a user equipment in a special subframe
- the selecting module 810 is configured to select, in the CSI-RS pilot resource mapping pattern in the special subframe, a resource unit RE corresponding to the CSI-RS pilot resource configuration as the RE carrying the CSI-RS;
- the sending module 820 is configured to send the CSI-RS by using the determined RE.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- the sending module 820 is further configured to:
- the user equipment in the system for transmitting CSI-RS includes: a receiving module 900 and a processing module 910.
- the receiving module 900 is configured to receive pilot resource configuration information of a CSI-RS transmitted by the network side device in a special subframe.
- the processing module 910 is configured to receive the CSI-RS on the RE resource determined according to the configuration information of the pilot resource that receives the CSI-RS.
- the pilot resource of the CSI-RS is configured as a resource configuration selected in a CSI-RS pilot resource mapping pattern in a special subframe.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: 3GPP TS
- the CSI-RS pilot resource mapping pattern specified in 36.211 protocol version 11 is part or all of all REs included in the partial pilot resource mapping pattern transmittable in the special subframe except for the RE carrying the downlink user-specific pilot.
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- the network side device in the system for transmitting CSI-RS according to Embodiment 10 of the present disclosure includes:
- the processor 1001 is configured to read a program in the memory 1004 and perform the following process:
- Determining to send a CSI-RS to the user equipment in the special subframe selecting a resource unit RE corresponding to the CSI-RS pilot resource configuration as the bearer CSI-RS in the CSI-RS pilot resource mapping pattern in the special subframe RE; control transceiver 1002 transmits the CSI-RS through the determined RE;
- the transceiver 1002 is configured to receive and transmit data under the control of the processor 1001.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- the processor 1001 is further configured to:
- bus 1000 may include any number of interconnected buses and bridges, and bus 1000 will include one or more processors represented by processor 1001 and memory represented by memory 1004. The various circuits are linked together. Bus 1000 can also The linking of various other circuits, such as peripherals, voltage regulators, and power management circuits, is well known in the art and, therefore, will not be further described herein.
- Bus interface 1003 provides an interface between bus 1000 and transceiver 1002.
- the transceiver 1002 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
- the data processed by the processor 1001 is transmitted over the wireless medium via the antenna 1005. Further, the antenna 1005 also receives the data and transmits the data to the processor 1001.
- the processor 1001 is responsible for managing the bus 1000 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
- the memory 1004 can be used to store data used by the processor 1001 in performing operations.
- the processor 1001 may be a CPU (Central Embedded Device), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device). , complex programmable logic devices).
- CPU Central Embedded Device
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- CPLD Complex Programmable Logic Device
- the user equipment in the system for transmitting CSI-RS according to Embodiment 11 of the present disclosure includes:
- the processor 1101 is configured to read a program in the memory 1104 and perform the following process:
- the transceiver 1102 is configured to receive and transmit data under the control of the processor 1101.
- the pilot resource of the CSI-RS is configured as a resource configuration selected in a CSI-RS pilot resource mapping pattern in a special subframe.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- bus 1100 can include any number of interconnected buses and bridges, and bus 1100 will include one or more processors and memory 1104 represented by general purpose processor 1101. The various circuits of the memory are linked together. The bus 1100 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
- Bus interface 1103 provides an interface between bus 1100 and transceiver 1102.
- the transceiver 1102 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium. For example, transceiver 1102 receives external data from other devices. The transceiver 1102 is configured to send the processed data of the processor 1101 to other devices.
- a user interface 1105 can also be provided, such as a keypad, display, speaker, microphone, joystick.
- the processor 1101 is responsible for managing the bus 1100 and the usual processing, running a general purpose operating system as described above.
- the memory 1104 can be used to store data used by the processor 1101 when performing operations.
- the processor 1101 may be a CPU, an ASIC, an FPGA, or a CPLD.
- the embodiment of the present disclosure further provides a transmission of a CSI-RS, where the device corresponding to the method is a network side device in a system for transmitting a CSI-RS according to an embodiment of the present disclosure, and the method solves the problem.
- the principle is similar to the device, so the implementation of the method can be referred to the implementation of the system, and the repeated description will not be repeated.
- the method for transmitting a CSI-RS according to Embodiment 12 of the present disclosure includes:
- Step 1201 The network side device determines to send a CSI-RS to the user equipment in the special subframe.
- Step 1202 The network side device selects, in a CSI-RS pilot resource mapping pattern in a special subframe, a resource unit RE corresponding to a CSI-RS pilot resource configuration as an RE that carries a CSI-RS;
- Step 1203 The network side device sends the CSI-RS by using the determined RE.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- the network side device selects one CSI-RS pilot resource configuration in the CSI-RS pilot resource mapping pattern in the special subframe, the network side device further includes:
- the network side device notifies the configuration information of the CSI-RS pilot resource in the special subframe of the user equipment.
- an embodiment of the present disclosure further provides a transmission of a CSI-RS, where the device corresponding to the method is a user equipment in a system for transmitting a CSI-RS according to an embodiment of the present disclosure, and the method solves the problem.
- the principle is similar to the device, so the implementation of the method can be referred to the implementation of the system, and the details are not repeated here.
- the method for transmitting a CSI-RS according to Embodiment 13 of the present disclosure includes:
- Step 1301 The user equipment receives pilot resource configuration information of a CSI-RS transmitted by the network side device in a special subframe.
- Step 1302 The user equipment receives the CSI-RS on the RE resource determined according to the configuration information of the pilot resource that receives the CSI-RS.
- the pilot resource of the CSI-RS is configured as a resource configuration selected in a CSI-RS pilot resource mapping pattern in a special subframe.
- the CSI-RS pilot resource mapping pattern in the special subframe includes: a part of a pilot resource mapping pattern that can be transmitted in a special subframe according to a CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11. a pilot resource mapping pattern of a CSI-RS formed by some or all other REs other than the RE carrying the downlink user-specific pilot among all the REs included;
- the downlink user-specific pilot is a downlink user-specific pilot specified in the 3GPP TS 36.211 protocol version 11.
- the partial pilot resource mapping pattern that can be transmitted in the special subframe by the CSI-RS pilot resource mapping pattern specified by the 3GPP TS 36.211 protocol version 11 includes: a CSI-RS guide defined by the 3GPP TS 36.211 protocol version 11. The pattern corresponding to the frequency resource mapping pattern on the partial symbol pair.
- the partial symbol pair is specifically:
- the partial symbol pair is the sixth symbol and the seventh symbol;
- the partial symbol pair is a symbol pair composed of the 6th symbol and the 7th symbol, and the 10th symbol and the 11th symbol a pair of symbols formed;
- the partial symbol pair is a symbol pair formed by the 5th symbol and the 6th symbol.
- the CSI-RS pilot resource mapping pattern in the special subframe includes:
- CSI-RS pilot resource transmission pattern formed by some or all other REs other than the RE carrying the downlink user-specific pilot in the specific symbol of the special subframe;
- the specific symbol is a symbol other than the symbols occupied by the PDCCH, the PSS, and the CRS; and the downlink user-specific pilot is a downlink user-specific pilot specified by the 3GPP TS 36.211 protocol version 11.
- the specific symbol is a fifth symbol and a sixth symbol in the special subframe
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the fourth symbol and the sixth symbol, and the seventh Symbol and the 10th symbol;
- the specific symbol is two pairs of symbols in a special subframe, the two pairs of symbols are the sixth symbol and the seventh symbol, and 10 symbols and 11th symbol;
- the specific symbol is a pair of symbols in a special subframe, and a pair of symbols is a fourth symbol and a sixth symbol.
- the network side device of the network side device in the embodiment of the present disclosure selects a resource unit RE corresponding to the CSI-RS pilot resource configuration as a bearer in the CSI-RS pilot resource mapping pattern in the special subframe.
- the RE of the CSI-RS transmits the CSI-RS through the determined RE. Since the embodiment of the present disclosure transmits the CSI-RS in the special subframe, the channel CSI-RS pilot pattern is added in the special subframe, thereby increasing the number of configurations of the CSI-RS as the discovery signal in the discovery signal burst of the TDD; further Can improve system performance.
Abstract
Description
Claims (29)
- 一种传输信道状态信息测量参考信号CSI-RS的方法,包括:网络侧设备确定在特殊子帧中向用户设备发送CSI-RS;所述网络侧设备在特殊子帧中的CSI-RS导频资源映射图样中选择一种CSI-RS导频资源配置所对应的资源单元RE作为承载CSI-RS的RE;所述网络侧设备通过确定的RE发送所述CSI-RS。
- 如权利要求1所述的方法,其中,所述特殊子帧中CSI-RS导频资源映射图样包括:第三代移动通信标准化组织3GPP技术规范TS 36.211协议版本11规定的CSI-RS导频资源映射图样在特殊子帧中可传输的部分导频资源映射图样所包含的所有RE中,除承载下行用户专用导频的RE之外的部分或全部其他RE所构成的CSI-RS的导频资源映射图样;其中,下行用户专用导频为3GPP TS 36.211协议版本11规定的下行用户专用导频。
- 如权利要求2所述的方法,其中,所述3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在特殊子帧中可传输的部分导频资源映射图样包括:3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在部分符号对上所对应的图样。
- 如权利要求3所述的方法,其中,所述部分符号对具体为:对于常规循环前缀,且采用特殊子帧配置1、2、6和7中的一种,所述部分符号对为第6个符号和第7个符号;对于常规循环前缀,且采用特殊子帧配置3、4和8中的一种,所述部分符号对为第6个符号和第7个符号构成的符号对,以及第10个符号和第11个符号所构成的符号对;对于扩展循环前缀,且采用特殊子帧配置1、2、3、5和6中的一种,所述部分符号对为第5个符号和第6个符号所构成的符号对。
- 如权利要求1所述的方法,其中,所述特殊子帧中CSI-RS导频资源映射图样包括:所述特殊子帧的特定符号中除承载下行用户专用导频的RE之外的部分或全部其他RE所构成的CSI-RS导频资源传输图样;其中,所述特定符号为除物理下行控制信道PDCCH、主同步信号PSS和小区专属导频信号CRS占用的符号之外的其他符号;下行用户专用导频为3GPP TS 36.211协议版本11规定的下行用户专用导频。
- 如权利要求5所述的方法,其中,对于常规循环前缀,且采用特殊子帧配置1、2、6和7中的一种,所述特定符号为特殊子帧中的第5个符号和第6个符号;对于常规循环前缀,且采用特殊子帧配置2和7中的一种,所述特定符号为特殊子帧中的两对符号,两对符号为第4个符号和第6个符号,以及第7个符号和第10个符号;对于常规循环前缀,且采用特殊子帧配置3、4和8中的一种,所述特定符号为特殊子帧中的两对符号,两对符号为第6个符号和第7个符号,以及第10个符号和第11个符号;对于常规循环前缀,且采用特殊子帧配置9,所述特定符号为特殊子帧中的一对符号,一对符号为第4个符号和第6个符号。
- 如权利要求1~6任一所述的方法,其中,所述网络侧设备在特殊子帧中CSI-RS导频资源映射图样中选择一种CSI-RS导频资源配置之后,还包括:所述网络侧设备通知所述用户设备特殊子帧中传输CSI-RS导频资源的配置信息。
- 一种传输信道状态信息测量参考信号CSI-RS的方法,包括:用户设备接收网络侧设备在特殊子帧中传输的CSI-RS的导频资源配置信息;所述用户设备在根据所述接收到CSI-RS的导频资源配置信息所确定的RE资源上,接收CSI-RS。
- 如权利要求8所述的方法,其中,所述CSI-RS的导频资源配置为在特殊子帧中CSI-RS导频资源映射图样中选取的资源配置。
- 如权利要求9所述的方法,其中,所述特殊子帧中CSI-RS导频资源映射图样包括:3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在特殊子帧中可传输的部分导频资源映射图样所包含的所有RE中,除承载下行用户专用导频的RE之外的部分或全部其他RE所构成的CSI-RS的导频资源映射图样;其中,下行用户专用导频为3GPP TS 36.211协议版本11规定的下行用户专用导频。
- 如权利要求10所述的方法,其中,所述3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在特殊子帧中可传输的部分导频资源映射图样包括:3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在部分符号对上所对应的图样。
- 如权利要求11所述的方法,其中,所述部分符号对具体为:对于常规循环前缀,且采用特殊子帧配置1、2、6和7中的一种,所述部分符号对为第6个符号和第7个符号;对于常规循环前缀,且采用特殊子帧配置3、4和8中的一种,所述部分符号对为第6个符号和第7个符号构成的符号对,以及第10个符号和第11个符号所构成的符号对;对于扩展循环前缀,且采用特殊子帧配置1、2、3、5和6中的一种,所述部分符号对为第5个符号和第6个符号所构成的符号对。
- 如权利要求9所述的方法,其中,所述特殊子帧中CSI-RS导频资源映射图样包括:所述特殊子帧的特定符号中除承载下行用户专用导频的RE之外的部分或全部其他RE所构成的CSI-RS导频资源传输图样,其中,所述特定符号为除PDCCH、PSS和CRS占用的符号之外的其他符号;下行用户专用导频为3GPP TS 36.211协议版本11规定的下行用户专用导频。
- 如权利要求13所述的方法,其中,对于常规循环前缀,且采用特殊子帧配置1、2、6和7中的一种,所述特定符号为特殊子帧中的第5个符号和第6个符号;对于常规循环前缀,且采用特殊子帧配置2和7中的一种,所述特定符号为特殊子帧中的两对符号,两对符号为第4个符号和第6个符号,以及第7个符号和第10个符号;对于常规循环前缀,且采用特殊子帧配置3、4和8中的一种,所述特定符号为特殊子帧中的两对符号,两对符号为第6个符号和第7个符号,以及第10个符号和第11个符号;对于常规循环前缀,且采用特殊子帧配置9,所述特定符号为特殊子帧中的一对符号,一对符号为第4个符号和第6个符号。
- 一种传输信道状态信息测量参考信号CSI-RS的网络侧设备,包括:确定模块,用于确定在特殊子帧中向用户设备发送CSI-RS;选择模块,用于在特殊子帧中的CSI-RS导频资源映射图样中选择一种CSI-RS导频资源配置所对应的资源单元RE作为承载CSI-RS的RE;以及发送模块,用于通过确定的RE发送所述CSI-RS。
- 如权利要求15所述的网络侧设备,其中,所述特殊子帧中CSI-RS导频资源映射图样包括:3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在特殊子帧中可传输的部分导频资源映射图样所包含的所有RE中,除承载下行用户专用导频的RE之外的部分或全部其他RE所构成的CSI-RS的导频资源映射图样;其中,下行用户专用导频为3GPP TS 36.211协议版本11规定的下行用户专用导频。
- 如权利要求16所述的网络侧设备,其中,所述3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在特殊子帧中可传输的部分导频资源映射图样包括:3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在部分符号对上所对应的图样。
- 如权利要求17所述的网络侧设备,其中,所述部分符号对具体为:对于常规循环前缀,且采用特殊子帧配置1、2、6和7中的一种,所述部分符号对为第6个符号和第7个符号;对于常规循环前缀,且采用特殊子帧配置3、4和8中的一种,所述部分符号对为第6个符号和第7个符号构成的符号对,以及第10个符号和第11个符号所构成的符号对;对于扩展循环前缀,且采用特殊子帧配置1、2、3、5和6中的一种,所述部分符号对为第5个符号和第6个符号所构成的符号对。
- 如权利要求15所述的网络侧设备,其中,所述特殊子帧中CSI-RS导频资源映射图样包括:所述特殊子帧的特定符号中除承载下行用户专用导频的RE之外的部分或全部其他RE所构成的CSI-RS导频资源传输图样;其中,所述特定符号为除PDCCH、PSS和CRS占用的符号之外的其他符号;下行用户专用导频为3GPP TS 36.211协议版本11规定的下行用户专用导频。
- 如权利要求19所述的网络侧设备,其中,对于常规循环前缀,且采用特殊子帧配置1、2、6和7中的一种,所述特定符号为特殊子帧中的第5个符号和第6个符号;对于常规循环前缀,且采用特殊子帧配置2和7中的一种,所述特定符号为特殊子帧中的两对符号,两对符号为第4个符号和第6个符号,以及第7个符号和第10个符号;对于常规循环前缀,且采用特殊子帧配置3、4和8中的一种,所述特定符号为特殊子帧中的两对符号,两对符号为第6个符号和第7个符号,以及第10个符号和第11个符号;对于常规循环前缀,且采用特殊子帧配置9,所述特定符号为特殊子帧中的一对符号,一对符号为第4个符号和第6个符号。
- 如权利要求15~20任一所述的网络侧设备,其中,所述发送模块还用于:通知所述用户设备特殊子帧中传输CSI-RS导频资源的配置信息。
- 一种传输信道状态信息测量参考信号CSI-RS的用户设备,包括:接收模块,用于接收网络侧设备在特殊子帧中传输的CSI-RS的导频资源配置信息;以及处理模块,用于在根据所述接收到CSI-RS的导频资源配置信息所确定的RE资源上,接收CSI-RS。
- 如权利要求22所述的用户设备,其中,所述CSI-RS的导频资源配置为在特殊子帧中CSI-RS导频资源映射图样中选取的资源配置。
- 如权利要求23所述的用户设备,其中,所述特殊子帧中CSI-RS导频资源映射图样包括:3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在特殊子帧中可传输的部分导频资源映射图样所包含的所有RE中,除承载下行用户专用导频的RE之外的部分或全部其他RE所构成的CSI-RS的导频资源映射图样;其中,下行用户专用导频为3GPP TS 36.211协议版本11规定的下行用户专用导频。
- 如权利要求24所述的用户设备,其中,所述3GPP TS 36.211协议 版本11规定的CSI-RS导频资源映射图样在特殊子帧中可传输的部分导频资源映射图样包括:3GPP TS 36.211协议版本11规定的CSI-RS导频资源映射图样在部分符号对上所对应的图样。
- 如权利要求25所述的用户设备,其中,所述部分符号对具体为:对于常规循环前缀,且采用特殊子帧配置1、2、6和7中的一种,所述部分符号对为第6个符号和第7个符号;对于常规循环前缀,且采用特殊子帧配置3、4和8中的一种,所述部分符号对为第6个符号和第7个符号构成的符号对,以及第10个符号和第11个符号所构成的符号对;对于扩展循环前缀,且采用特殊子帧配置1、2、3、5和6中的一种,所述部分符号对为第5个符号和第6个符号所构成的符号对。
- 如权利要求23所述的用户设备,其中,所述特殊子帧中CSI-RS导频资源映射图样包括:所述特殊子帧的特定符号中除承载下行用户专用导频的RE之外的部分或全部其他RE所构成的CSI-RS导频资源传输图样;其中,所述特定符号为除PDCCH、PSS和CRS占用的符号之外的其他符号;下行用户专用导频为3GPP TS 36.211协议版本11规定的下行用户专用导频。
- 如权利要求27所述的用户设备,其中,对于常规循环前缀,且采用特殊子帧配置1、2、6和7中的一种,所述特定符号为特殊子帧中的第5个符号和第6个符号;对于常规循环前缀,且采用特殊子帧配置2和7中的一种,所述特定符号为特殊子帧中的两对符号,两对符号为第4个符号和第6个符号,以及第7个符号和第10个符号;对于常规循环前缀,且采用特殊子帧配置3、4和8中的一种,所述特定符号为特殊子帧中的两对符号,两对符号为第6个符号和第7个符号,以及第10个符号和第11个符号;对于常规循环前缀,且采用特殊子帧配置9,所述特定符号为特殊子帧中的一对符号,一对符号为第4个符号和第6个符号。
- 一种传输信道状态信息测量参考信号CSI-RS的系统,包括:网络侧设备和用户设备,其中,所述网络侧设备包括:确定模块,用于确定在特殊子帧中向用户设备发送CSI-RS;选择模块,用于在特殊子帧中的CSI-RS导频资源映射图样中选择一种CSI-RS导频资源配置所对应的资源单元RE作为承载CSI-RS的RE;以及发送模块,用于通过确定的RE发送所述CSI-RS,所述用户设备包括:接收模块,用于接收所述网络侧设备在特殊子帧中传输的CSI-RS的导频资源配置信息;以及处理模块,用于在根据所述接收到CSI-RS的导频资源配置信息所确定的RE资源上,接收CSI-RS。
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CN108616300B (zh) * | 2017-01-06 | 2024-03-08 | 华为技术有限公司 | 一种信道状态信息测量的配置方法及相关设备 |
CN108282311B (zh) | 2017-01-06 | 2020-12-04 | 华为技术有限公司 | 一种下行测量参考信号的资源配置方法及装置 |
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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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