CN109257818B - Reference signal configuration, transmission method, base station, terminal, and computer-readable storage medium - Google Patents
Reference signal configuration, transmission method, base station, terminal, and computer-readable storage medium Download PDFInfo
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- CN109257818B CN109257818B CN201710570430.0A CN201710570430A CN109257818B CN 109257818 B CN109257818 B CN 109257818B CN 201710570430 A CN201710570430 A CN 201710570430A CN 109257818 B CN109257818 B CN 109257818B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
- 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
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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Abstract
The invention provides a reference signal configuration and transmission method, a base station, a terminal and a computer readable storage medium, and belongs to the technical field of wireless communication. The reference signal configuration method is applied to a base station in a wireless communication network, and comprises the following steps: and sending a reference signal configuration message to the terminal, wherein the reference signal configuration message carries the transmitting power information of the reference signal, so that the terminal determines the power adopted for transmitting the reference signal according to the transmitting power information. A reference signal transmission method applied to a terminal in a wireless communication network, the method comprising: receiving a reference signal configuration message sent by a base station, wherein the reference signal configuration message carries the transmitting power information of a reference signal; and determining the power adopted for transmitting the reference signal according to the transmitting power information. The invention can flexibly configure the transmitting power of the reference signal.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a reference signal configuration and transmission method, a base station, a terminal, and a computer readable storage medium.
Background
In both the base station end and the terminal antenna model of the high-frequency band of the wireless communication network, a plurality of antenna panels exist. On multiple antenna panels, the antenna array inside each antenna panel may be considered well-aligned, while the antenna array between the antenna panels may not be fully aligned. How multiple antenna panels are beamformed is an important issue in 5G systems during multi-beam operation.
When the antenna array alignment between the antenna panels is good enough, as shown in fig. 1, the antenna arrays of the plurality of antenna panels can be regarded as forming a larger antenna, so that the plurality of antenna panels can perform joint beam forming, combine the powers of the plurality of antenna panels, and the formed beam has higher forming gain, narrower beam width and the whole bandwidth is limited by the beam direction.
On the other hand, as shown in fig. 2 and fig. 3, each antenna panel can also perform independent beamforming, and because the number of antenna elements on a single antenna panel is smaller than that of the antenna elements combined by a plurality of antenna panels, the obtained beamforming gain is lower than that of the multi-antenna panel combined beamforming, and the beamforming width is wider, but the beamforming is more flexible in the whole bandwidth range.
In addition to fully joint and fully independent multi-antenna panel beamforming operations, in fact, in NR (radio access technology), in order to achieve more flexible SU (single user) and MU (multi-user) transmissions, PDSCH (physical downlink shared channel) should support flexible multi-antenna panel transmissions, and depending on channel conditions and SU, MU scheduling conditions, the base station may determine the antenna panel transmission mode used by PDSCH on each subframe or slot, i.e. flexible multi-and/or partial antenna panel joint and/or independent beamforming.
In NR, there are at least synchronization signals SS (transmitted in a synchronization signal block (SS block), including NR-PSS (primary synchronization signal), NR-SSs (secondary synchronization signal) and NR-PBCH (physical broadcast channel)), as shown in fig. 4, PDSCH is multiplexed with SS block1, periodic CSI-RS (channel state information reference signal) 2, and semi-static CSI-RS3 on different symbols. Since the NR-SSS is used for RRM (radio resource management measurement) of IDLE users in the prior art, it is required to ensure that the power of the NR-SSS remains consistent over all subframes, i.e. the number of antenna panels used for transmitting SS blocks needs to be a fixed value, and since the antenna panels for transmitting SS blocks cannot transmit CSI-RS any more, the number of antenna panels for transmitting reference signals will be limited by the number of antenna panels for transmitting SS blocks, and is generally also designed to be a fixed value, resulting in limited transmit power of reference signals and inflexible configuration.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a reference signal configuration, a transmission method, a base station, a terminal and a computer readable storage medium, which can flexibly configure the transmitting power of a reference signal.
In order to solve the technical problems, the embodiment of the invention provides the following technical scheme:
in one aspect, a reference signal configuration method is provided, applied to a base station in a wireless communication network, the method includes:
and sending a reference signal configuration message to the terminal, wherein the reference signal configuration message carries the transmitting power information of the reference signal, so that the terminal determines the power adopted for transmitting the reference signal according to the transmitting power information.
Further, the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
Further, the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block.
Further, the transmission power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, the reference signal is configured to be transmitted on the same symbol as the synchronization signal block and/or not transmitted on the same symbol.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or
A second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or
A third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
Further, the second ratio is selected from 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
The embodiment of the invention also provides a reference signal sending method, which is applied to the terminal in the wireless communication network, and comprises the following steps:
receiving a reference signal configuration message sent by a base station, wherein the reference signal configuration message carries the transmitting power information of a reference signal;
and determining the power adopted for transmitting the reference signal according to the transmitting power information.
Further, the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
Further, the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block.
Further, the transmission power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, the reference signal is configured to be transmitted on the same symbol as the synchronization signal block and/or not transmitted on the same symbol.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or
A second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or
A third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
Further, the second ratio is selected from 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
The embodiment of the invention also provides a base station, which comprises a processor and a transceiver,
the processor is configured to generate a reference signal configuration message, where the reference signal configuration message carries transmission power information of a reference signal;
the transceiver is configured to send the reference signal configuration message to a terminal, so that the terminal determines the power adopted for transmitting the reference signal according to the transmission power information.
Further, the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
Further, the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block.
Further, the transmission power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, the reference signal is configured to be transmitted on the same symbol as the synchronization signal block and/or not transmitted on the same symbol.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or
A second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or
A third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
Further, the second ratio is selected from 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
The embodiment of the invention also provides a terminal, which comprises a processor and a transceiver,
the transceiver is configured to receive a reference signal configuration message sent by the base station, where the reference signal configuration message carries transmission power information of a reference signal;
the processor is configured to determine a power used for transmitting the reference signal according to the transmission power information.
Further, the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
Further, the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block.
Further, the transmission power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, the reference signal is configured to be transmitted on the same symbol as the synchronization signal block and/or not transmitted on the same symbol.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or
A second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or
A third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
Further, the second ratio is selected from 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
The embodiment of the invention also provides a base station, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the reference signal configuration method when executing the program.
The embodiment of the invention also provides a terminal which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the reference signal sending method when executing the program.
The embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the reference signal configuration method as described above or which, when executed by the processor, implements the reference signal transmission method as described above.
The embodiment of the invention has the following beneficial effects:
in the scheme, the base station sends the reference signal configuration message to the terminal, the reference signal configuration message carries the transmitting power information of the reference signal, and the terminal can determine the power adopted by the transmitting reference signal according to the transmitting power information after receiving the reference signal configuration message, so that the flexible configuration of the transmitting power of the reference signal is realized.
Drawings
Fig. 1 is a schematic diagram of joint beamforming for multiple antenna panels;
fig. 2-3 are schematic diagrams of multiple antenna panels performing independent beamforming;
fig. 4 is a schematic diagram of signals transmitted on PDSCH;
FIG. 5 is a flow chart of a reference signal configuration method according to an embodiment of the invention;
fig. 6 is a flowchart of a reference signal transmission method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention more apparent, the following detailed description will be given with reference to the accompanying drawings and the specific embodiments.
The embodiment of the invention provides a reference signal configuration, a transmission method, a base station, a terminal and a computer readable storage medium, which aim at the problem that the transmission power of a reference signal is limited and cannot be flexibly configured in the prior art.
When the CSI-RS is configured, it may be configured to transmit different antenna panel numbers according to the channel conditions such as the user position, or may be configured on the symbol where SS block is transmitted, or may be configured on the symbol where SS block is not transmitted, and for periodic and semi-static CSI-RS, if there is exactly SS on the configured transmission symbol, the corresponding antenna panel number and transmission power will be different from the CSI-RS transmission power on the symbol where no SS is present. On the symbol with the transmission of the Synchronization Signal (SS), the number of the antenna panels which can be used by the CSI-RS is limited by the number of the antenna panels used by the SS, and on the symbol without the transmission of the synchronization signal, different multi-antenna panel transmission modes can be flexibly selected/configured, so that the antenna panels of the CSI-RS transmitted by the UE can be flexibly configured under the architecture of the multi-antenna panels, and the transmitting power of the CSI-RS can be flexibly configured.
An embodiment of the present invention provides a reference signal configuration method, which is applied to a base station in a wireless communication network, as shown in fig. 5, and includes:
step 101: and sending a reference signal configuration message to the terminal, wherein the reference signal configuration message carries the transmitting power information of the reference signal, so that the terminal determines the power adopted for transmitting the reference signal according to the transmitting power information.
In this embodiment, the base station sends a reference signal configuration message to the terminal, where the reference signal configuration message carries transmission power information of the reference signal, and the terminal can determine, after receiving the reference signal configuration message, power adopted by the reference signal according to the transmission power information, so as to implement flexible configuration of the transmission power of the reference signal.
Further, the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
In a specific embodiment, the reference signal may be configured to be transmitted not on the same symbol as the synchronization signal block.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
In another embodiment, the reference signal may be configured to be transmitted on the same symbol as the synchronization signal block and/or not transmitted on the same symbol.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or
A second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or
A third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
Further, the second ratio is selected from 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
The embodiment of the invention also provides a reference signal sending method, which is applied to the terminal in the wireless communication network, as shown in fig. 6, and comprises the following steps:
step 201: receiving a reference signal configuration message sent by a base station, wherein the reference signal configuration message carries the transmitting power information of a reference signal;
step 202: and determining the power adopted for transmitting the reference signal according to the transmitting power information.
In this embodiment, the terminal receives a reference signal configuration message sent by the base station, where the reference signal configuration message carries transmission power information of a reference signal, and after receiving the reference signal configuration message, the terminal can determine power adopted by the reference signal according to the transmission power information, thereby implementing flexible configuration of the transmission power of the reference signal.
Further, the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
In a specific embodiment, the reference signal may be configured to be transmitted not on the same symbol as the synchronization signal block.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
In another embodiment, the reference signal may be configured to be transmitted on the same symbol as the synchronization signal block and/or not transmitted on the same symbol.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or
A second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or
A third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
Further, the second ratio is selected from 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
For periodic CSI-RS and semi-static CSI-RS, if the CSI-RS cannot be transmitted on the same symbol with SS block configuration, in high-level configuration information of the CSI-RS, the number of antenna panels and the transmitting power used by the CSI-RS are directly indicated, so that the CSI-RS can be ensured to be transmitted by using a fixed antenna panel, namely the transmitting power; if the CSI-RS can be transmitted on the same symbol as the SS block configuration, in the higher layer configuration information of the CSI-RS, the CSI-RS power difference on the symbol with the SS block and the symbol without the SS block needs to be indicated. The reference signal configuration method and the reference signal transmission method of the present invention will be described in detail with reference to specific embodiments below:
embodiment one: and if the CSI-RS is not configured on the same symbol as the SS block for transmission, according to the power indication method of the existing LTE (long term evolution system), the power ratio of the CSI-RS to the PDSCH without the SS block is indicated by Pc in the high-level configuration information of the CSI-RS.
Embodiment two: the CSI-RS may be configured to transmit on the same symbol as the SS block, and in the higher layer configuration information of the CSI-RS, in addition to Pc, a power ratio indication needs to be added: symPowerOffset. The power ratio of the CSI-RS on the symbol with the SS block and the CSI-RS on the symbol without the SS block is indicated, and the power ratio can be {0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB }.
Embodiment III: the CSI-RS may be configured to transmit on the same symbol as the SS block, and in the higher layer configuration information of the CSI-RS, in addition to Pc, a power ratio indication needs to be added: symPowerOffset. Indicating the power ratio of the CSI-RS on the symbol with SS block and the CSI-RS on the symbol without SS block, the power ratio is {0dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB }
Embodiment four: the CSI-RS may be configured to transmit on the same symbol as the SS block, and in the higher layer configuration information of the CSI-RS, in addition to Pc, a power ratio indication needs to be added: symPowerOffset. The power ratio of the CSI-RS on the symbol with SS block and the CSI-RS on the symbol without SS block is indicated as { -9dB, -8.45dB, -7.78dB, -6.99dB, -6dB, -4.77dB, -3dB,0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB }.
Of course, the power ratio may be other values, and the above examples are only for illustrating the preferred values.
The embodiment of the present invention also provides a base station, as shown in fig. 7, comprising a processor 31 and a transceiver 32,
the processor 31 is configured to generate a reference signal configuration message, where the reference signal configuration message carries transmission power information of a reference signal;
the transceiver 32 is configured to send the reference signal configuration message to a terminal so that the terminal determines the power at which to transmit the reference signal based on the transmit power information.
Further, the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
Further, the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block.
Further, the transmission power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, the reference signal is configured to be transmitted on the same symbol as the synchronization signal block and/or not transmitted on the same symbol.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or
A second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or
A third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
Further, the second ratio is selected from 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
In this embodiment, the base station sends a reference signal configuration message to the terminal, where the reference signal configuration message carries transmission power information of the reference signal, and the terminal can determine, after receiving the reference signal configuration message, power adopted by the reference signal according to the transmission power information, so as to implement flexible configuration of the transmission power of the reference signal.
The embodiment of the present invention also provides a terminal, as shown in fig. 8, including a processor 41 and a transceiver 42,
the transceiver 42 is configured to receive a reference signal configuration message sent by a base station, where the reference signal configuration message carries transmission power information of a reference signal;
the processor 41 is configured to determine the power with which the reference signal is transmitted based on the transmit power information.
Further, the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
Further, the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block.
Further, the transmission power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, the reference signal is configured to be transmitted on the same symbol as the synchronization signal block and/or not transmitted on the same symbol.
Further, when the reference signal is configured not to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of the transmit power of the reference signal to the transmit power of the physical downlink shared channel PDSCH of the untransmitted synchronization signal block.
Further, when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes:
a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or
A second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or
A third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
Further, the second ratio is selected from 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
In this embodiment, the terminal receives a reference signal configuration message sent by the base station, where the reference signal configuration message carries transmission power information of a reference signal, and after receiving the reference signal configuration message, the terminal can determine power adopted by the reference signal according to the transmission power information, thereby implementing flexible configuration of the transmission power of the reference signal.
The embodiment of the invention also provides a base station, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the reference signal configuration method when executing the program.
The embodiment of the invention also provides a terminal which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the reference signal sending method when executing the program.
The embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the reference signal configuration method as described above or which, when executed by the processor, implements the reference signal transmission method as described above.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (15)
1. A reference signal configuration method for a base station in a wireless communication network, the method comprising:
transmitting a reference signal configuration message to a terminal, wherein the reference signal configuration message carries the transmitting power information of a reference signal, so that the terminal determines the power adopted for transmitting the reference signal according to the transmitting power information;
the reference signal is configured to be transmitted on a symbol other than the synchronization signal block; the transmission power information includes: a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; or alternatively, the first and second heat exchangers may be,
the reference signal is configured to be transmitted on the same symbol as the synchronization signal block; when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes: a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or a second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or a third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
2. The reference signal configuration method according to claim 1, wherein the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
3. The reference signal configuration method of claim 1, wherein the second ratio is selected from the group consisting of 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
4. A reference signal transmission method, applied to a terminal in a wireless communication network, the method comprising:
receiving a reference signal configuration message sent by a base station, wherein the reference signal configuration message carries the transmitting power information of a reference signal;
determining the power adopted for transmitting the reference signal according to the transmitting power information;
the reference signal is configured to be transmitted on a symbol other than the synchronization signal block; the transmission power information includes: a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; or alternatively, the first and second heat exchangers may be,
the reference signal is configured to be transmitted on the same symbol as the synchronization signal block; when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes: a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or a second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or a third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
5. The reference signal transmission method according to claim 4, wherein the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
6. The reference signal transmission method according to claim 4, wherein the second ratio is selected from the group consisting of 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
7. A base station is characterized by comprising a processor and a transceiver,
the processor is configured to generate a reference signal configuration message, where the reference signal configuration message carries transmission power information of a reference signal;
the transceiver is configured to send the reference signal configuration message to a terminal, so that the terminal determines, according to the transmission power information, the power used for transmitting the reference signal;
the reference signal is configured to be transmitted on a symbol other than the synchronization signal block; the transmission power information includes: a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; or alternatively, the first and second heat exchangers may be,
the reference signal is configured to be transmitted on the same symbol as the synchronization signal block; when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes: a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or a second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or a third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
8. The base station of claim 7, wherein the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
9. The base station of claim 7, wherein the second ratio is selected from the group consisting of 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
10. A terminal is characterized by comprising a processor and a transceiver,
the transceiver is configured to receive a reference signal configuration message sent by the base station, where the reference signal configuration message carries transmission power information of a reference signal;
the processor is used for determining the power adopted for transmitting the reference signal according to the transmitting power information;
the reference signal is configured to be transmitted on a symbol other than the synchronization signal block; the transmission power information includes: a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; or alternatively, the first and second heat exchangers may be,
the reference signal is configured to be transmitted on the same symbol as the synchronization signal block; when the reference signal is configured to be transmitted on the same symbol as the synchronization signal block, the transmit power information includes: a first ratio of a transmission power of the reference signal to a transmission power of a physical downlink shared channel PDSCH not transmitting the synchronization signal block; and/or a second ratio of the transmit power of the reference signal on the symbol of the transmitted synchronization signal block to the transmit power of the reference signal on the symbol of the non-transmitted synchronization signal block; and/or a third ratio of the transmission power of the reference signal to the transmission power of the physical downlink shared channel PDSCH of the transmission synchronization signal block.
11. The terminal of claim 10, wherein the reference signals include, but are not limited to:
periodic channel state information reference signals (CSI-RS) and/or semi-static CSI-RS;
periodic and/or semi-static reference signals for path loss estimation;
periodic and/or semi-static reference signals for reference signal received power estimation;
periodic and/or semi-static reference signals for beam scanning;
periodic and/or semi-static reference signals for RRM measurements.
12. The terminal of claim 10, wherein the second ratio is selected from the group consisting of 0dB,3dB,4.77dB,6dB,6.99dB,7.78dB,8.45dB,9dB, -3dB, -4.77dB, -6dB, -6.99dB, -7.78dB, -8.45dB, -9dB.
13. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor; a reference signal configuring method as claimed in any one of claims 1 to 3, wherein said processor when executing said program.
14. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the reference signal transmission method according to any one of claims 4 to 6, characterized in that the processor implements the reference signal transmission method when executing the program.
15. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, implements the reference signal configuration method according to any one of claims 1 to 3 or the reference signal transmission method according to any one of claims 4 to 6.
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| CN110140301B (en) * | 2019-03-25 | 2023-06-27 | 北京小米移动软件有限公司 | Synchronous signal block transmission method, device and storage medium |
| CN112020132B (en) * | 2019-05-30 | 2022-12-13 | 中国移动通信有限公司研究院 | Downlink power allocation indication method, determination method, terminal and network side equipment |
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