WO2020098631A1 - 上行功率控制的方法和设备 - Google Patents
上行功率控制的方法和设备 Download PDFInfo
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- WO2020098631A1 WO2020098631A1 PCT/CN2019/117458 CN2019117458W WO2020098631A1 WO 2020098631 A1 WO2020098631 A1 WO 2020098631A1 CN 2019117458 W CN2019117458 W CN 2019117458W WO 2020098631 A1 WO2020098631 A1 WO 2020098631A1
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- power control
- indication information
- control rule
- uplink
- uplink power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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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
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
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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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0478—Special codebook structures directed to feedback optimisation
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
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- H—ELECTRICITY
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- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
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- 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
- H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
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- 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
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
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- H—ELECTRICITY
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- 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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
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- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
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- H04W52/04—TPC
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
- H04W52/58—Format of the TPC bits
Definitions
- Embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a method and device for uplink power control.
- a codebook-based uplink transmission scheme is a multi-antenna transmission technology that determines a precoding matrix for uplink transmission based on a fixed codebook.
- the basic principle of the uplink transmission scheme based on the codebook is similar to the uplink spatial multiplexing technology in the long-term evolution (LTE) system.
- LTE long-term evolution
- the adopted codebook and precoding instructions are different.
- the process of the uplink transmission scheme based on the codebook includes:
- the user equipment sends an uplink sounding reference signal (SRS) for channel state information (Channel Information) acquisition of the uplink transmission scheme based on the codebook to the base station.
- SRS uplink sounding reference signal
- Channel State Information Channel Information
- the base station performs uplink channel detection according to the SRS sent by the UE, performs resource scheduling on the UE, and determines the SRS resource corresponding to the uplink transmission, the number of layers of the uplink transmission and the precoding matrix, and further determines the precoding matrix and channel information Modulation and Coding Scheme (MCS) level for uplink transmission, then the base station allocates physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) resources and corresponding MCS, transmission precoding matrix indication (Transmit Precoding Matrix Indicator) , TPMI), the number of transmission layers and the corresponding SRS resource indicator (SRS resource indicator, SRI) are notified to the UE.
- MCS Modulation and Coding Scheme
- the UE performs modulation and coding on the data according to the MCS instructed by the base station, and uses the indicated SRI, TPMI, and the number of transmission layers to determine the precoding matrix and the number of transmission layers used in data transmission, and then precodes and transmits the data.
- the demodulation pilot of PUSCH uses the same precoding method as the data of PUSCH.
- the base station estimates the uplink channel based on the demodulated pilot signal and performs data detection.
- the characteristics of the transmission antenna and the radio frequency are quite different from those of the base station.
- the codebook design needs to fully consider the related characteristics between the antennas.
- the UE can use the two antenna ports to perform data transmission on the same layer at the same time through precoding to obtain array gain.
- actual UE antenna ports inevitably have differences in power and phase. Limited by cost and design, not all UEs can calibrate each antenna port to a degree that satisfies coherent transmission requirements.
- the optimal precoding for uplink transmission of the terminal may not be the precoding indicated by TPMI. That is, the terminal uses the precoding indicated by TPMI to transmit PUSCH and cannot obtain a better comparison. Good performance.
- the NR system defines the three antenna coherent transmission capabilities of the UE:
- Non-coherent No antenna can transmit coherently.
- the UE's antenna coherent transmission capability is indicated by the codebook subset limitation supported by the UE.
- the subset of codebooks supported by the UE in 3GPP R15 NR protocol TS 38.331 V15.3.0 (2018-09) is restricted to pass
- the UE When the pusch-TransCoherence reported by the UE is nonCoherent, it can be understood that the UE is a non-coherent transmission capability UE; when the pusch-TransCoherence reported by the UE is partial NonCoherent, it can be understood that the UE is a partial coherent transmission capability UE; when the pusch-TransCoherence reported by the UE is FullCoherent can be understood that the UE is a UE with full coherent transmission capability.
- the base station may send codebook subset restriction signaling to the UE based on the UE's antenna coherent transmission capability, restricting the UE to use a part of codewords for uplink transmission.
- the codebook subset limitation signaling indicated by the base station for the UE is the codebooksubset in PUSCH-Config, as follows:
- the PUSCH multi-antenna power allocation method using uplink MIMO is: the UE will calculate the transmission power according to the uplink power control formula (for example, in the NR system, TS 38.213 V15.3.0 (2018-09) version Is the P PUSCH, b, f, c (i, j, q d , l)) in section 7.1.1 in the total number of ports that the base station has configured for the transmission mode corresponding to the PUSCH according to the number of ports actually sending signals The proportion of the power is scaled, and then the scaled power is divided equally on the antenna port that actually sends the signal.
- the uplink power control formula for example, in the NR system, TS 38.213 V15.3.0 (2018-09) version Is the P PUSCH, b, f, c (i, j, q d , l)
- the proportion of the power is scaled, and then the scaled power is divided equally on the antenna port that actually sends the
- the uplink transmission is configured with 4 antenna ports
- the precoding matrix indicated by the base station is Since the base station configures 4 antenna ports for uplink transmission, only 2 antenna ports in the precoding matrix are non-zero, so if the transmission power calculated by the UE according to the PUSCH power control formula is P, the actual transmission power of the PUSCH is P / 2.
- the transmit power of the first antenna port and the third antenna port are P / 4. This scaling does not require that each antenna port of the UE can reach the maximum transmit power, allowing the UE to use lower cost radio frequency components to achieve multi-antenna function.
- the base station when the UE is located at the edge of a cell or the channel conditions are poor, the base station usually configures the UE with a low-rank transmission and transmits data at the maximum transmit power as much as possible.
- a UE with partial antenna coherent transmission capability and non-coherent transmission capability always has a part of antenna ports without PUSCH transmission during single rank transmission.
- the current uplink MIMO multi-antenna power allocation mechanism cannot guarantee that a UE with partial antenna coherent transmission capability and non-coherent transmission capability under a codebook-based uplink transmission scheme can achieve maximum transmit power during single rank transmission, thereby reducing UE The performance at the edge of the cell affects the cell coverage.
- the 3GPP NR system in the related art has a low Rank (or is referred to as a codebook-based uplink transmission scheme configured with multiple antenna ports for UEs with partially coherent transmission capabilities and UEs with non-coherent transmission capabilities).
- Low transmission stream number During transmission, the transmission power of the terminal cannot reach the maximum transmission power.
- the UE of 3GPP R15 cannot reach the maximum transmission power of the uplink when transmitting the number of non-codebook uplink multiple antenna ranks configured with multiple antenna ports less than the configured number of antenna ports. This will reduce the performance of the UE at the cell edge and affect the cell coverage. Therefore, in order to solve this problem, the Rel-16NR system may introduce a new uplink power control scaling criterion. There is currently no method for the UE to determine the uplink power control scaling criterion when there are multiple uplink power control scaling criteria in the system.
- An object of the embodiments of the present disclosure is to provide an uplink power control method and device, which can solve the problem of how to determine the uplink power control scaling criterion when there are multiple uplink power control scaling criteria in the system.
- An embodiment of the present disclosure provides an uplink power control method, which is applied to a terminal and includes:
- the transmission power of the uplink signal is determined according to the uplink power control rule indicated by the first indication information.
- An embodiment of the present disclosure also provides a method for uplink power control, which is applied to a base station and includes:
- An embodiment of the present disclosure also provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor;
- the transceiver is used to receive first indication information sent by a base station, and the first indication information is used to indicate an uplink power control rule of an uplink signal;
- the processor is configured to read a program in the memory and perform the following process: determine the transmission power of the uplink signal according to the uplink power control rule indicated by the first indication information
- An embodiment of the present disclosure also provides another terminal, including:
- a receiving unit configured to receive first indication information sent by a base station, where the first indication information is used to indicate an uplink power control rule of an uplink signal;
- a determining unit configured to determine the transmission power of the uplink signal according to the uplink power control rule indicated by the first indication information
- An embodiment of the present disclosure also provides a base station, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor;
- the transceiver is used to send first indication information to a terminal, and the first indication information is used to indicate an uplink power control rule of an uplink signal.
- An embodiment of the present disclosure also provides another base station, including:
- the sending unit is configured to send first indication information to the terminal, where the first indication information is used to indicate the uplink power control rule of the uplink signal.
- An embodiment of the present disclosure also provides a computer-readable storage medium, including instructions, which when executed by a computer, causes the computer to perform the method of uplink power control as described above.
- the method and device for uplink power control provided by the embodiments of the present disclosure can determine which uplink power control scaling criterion is adopted when there are multiple uplink power control scaling criteria in the system, and interact with the terminal through the base station , Can make the base station and the terminal based on the same understanding of uplink power control, thereby ensuring the performance of uplink transmission.
- FIG. 1 shows a schematic flowchart of a related art uplink transmission scheme based on a codebook
- FIG. 2 shows a block diagram of a wireless communication system to which embodiments of the present disclosure can be applied;
- FIG. 3 is a schematic flowchart of a method for uplink power control according to an embodiment of the present disclosure
- FIG. 4 is another schematic flowchart of an uplink power control method according to an embodiment of the present disclosure.
- FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
- FIG. 6 is another schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
- FIG. 7 is a schematic structural diagram of a base station provided by an embodiment of the present disclosure.
- FIG. 8 is another schematic structural diagram of a base station provided by an embodiment of the present disclosure.
- LTE Long Time Evolution
- LTE-Advanced LTE-A
- NR NR systems
- code division multiple access Code, Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA single Carrier frequency division multiple access
- SC-FDMA single Carrier Frequency-Division Multiple Access
- the CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA) and so on.
- UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants.
- the TDMA system can implement radio technologies such as Global System for Mobile (GSM).
- GSM Global System for Mobile
- OFDMA system can realize such as Ultra Mobile Broadband (Ultra Mobile Broadband, UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE 1102.11 (Wi-Fi), IEEE 1102.16 (WiMAX), IEEE 1102.20, Flash-OFDM, etc. Radio technology.
- UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS).
- LTE and more advanced LTE are new UMTS versions that use E-UTRA.
- NR, UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project (3GPP).”
- 3GPP2 3rd Generation Partnership Project 2
- the technology described herein can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies.
- the following description describes the NR system for example purposes, and NR terminology is used in most of the description below, although these techniques can also be applied to applications other than NR system applications.
- the wireless communication system includes a terminal 21 and a base station 22.
- the terminal 21 may also be called a user terminal (User Equipment, UE), and the terminal 21 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant (PDA)) 1.
- Mobile Internet devices Mobile Internet Devices (MID), Wearable Devices (Wearable Devices), or vehicle-mounted devices, etc. terminal devices, it should be noted that the specific type of the terminal 21 is not limited in the embodiments of the present disclosure.
- the base station 22 may be a base station of 5G and later versions (for example: gNB, 5G, NR, etc.), or a base station in other communication systems (for example: eNB, WLAN access point, or other access point, etc.), where the base station may Known as Node B, Evolved Node B, Access Point, Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (Extended Service Set, ESS), Node B, evolved Node B (eNB), home Node B, home evolved Node B, WLAN access point, WiFi node, or some other suitable term in the field, as long as the same technology is achieved As a result, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiments of the present disclosure, only the base station in the NR system is used as an example, but the specific type of the base station is not limited.
- the base station 22 may communicate with the terminal 21 under the control of a base station controller.
- the base station controller may be part of the core network or some base stations.
- Some base stations can communicate control information or user data with the core network through the backhaul.
- some of these base stations may communicate with each other directly or indirectly through a backhaul link, which may be a wired or wireless communication link.
- the wireless communication system can support operation on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters can transmit modulated signals on these multiple carriers simultaneously.
- each communication link may be a multi-carrier signal modulated according to various radio technologies.
- Each modulated signal can be sent on a different carrier and can carry control information (eg, reference signals, control channels, etc.), overhead information, data, etc.
- the base station 22 can wirelessly communicate with the terminal 21 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area of an access point may be divided into sectors that only constitute a part of the coverage area.
- the wireless communication system may include different types of base stations (eg, macro base stations, micro base stations, or pico base stations). The base station may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base station may be associated with the same or different access network or operator deployment. The coverage areas of different base stations (including the coverage areas of the same or different types of base stations, the coverage areas using the same or different radio technologies, or the coverage areas belonging to the same or different access networks) may overlap.
- the communication link in the wireless communication system may include an uplink for carrying uplink (Uplink, UL) transmission (for example, from the terminal 21 to the base station 22), or a bearer for downlink (Downlink, DL) transmission (For example, from the base station 22 to the user equipment 21).
- UL transmission may also be referred to as reverse link transmission
- DL transmission may also be referred to as forward link transmission.
- Downlink transmission can be performed using licensed frequency bands, unlicensed frequency bands, or both.
- uplink transmissions can be performed using licensed frequency bands, unlicensed frequency bands, or both.
- Embodiments of the present disclosure provide a method for uplink power control. Through the interaction between the base station and the terminal for scaling criteria for uplink power control, the base station and the terminal can be based on the same understanding of uplink power control, thereby ensuring the performance of uplink transmission.
- the uplink power control method provided by the embodiment of the present disclosure which is applied to the terminal side, includes:
- Step 31 Receive first indication information sent by the base station, where the first indication information is used to indicate the uplink power control rule of the uplink signal.
- the uplink signal may be PUSCH, Physical Uplink Control Channel (PUCCH), SRS, PUSCH demodulation reference signal (DeModulation Reference Signal, DMRS), PUCCH DMRS and PUCCH DMRS
- PUCCH DMRS Physical Uplink Control Channel
- the uplink signal may be a certain type of the above signal or all types of the above signal.
- the signal is a PUSCH based on a codebook transmission method.
- the uplink power control rule is a power scaling rule for uplink signals.
- PUSCH For example, for PUSCH, it is the transmission power calculated by the UE according to the uplink power control formula (for example, in the NR system, TS 38.213 V15.3.0 (2018-09) version is P PUSCH in section 7.1.1 , b, f, c (i, j, q d , l)) rules for scaling.
- the uplink power control formula for example, in the NR system, TS 38.213 V15.3.0 (2018-09) version is P PUSCH in section 7.1.1 , b, f, c (i, j, q d , l)) rules for scaling.
- an uplink power control rule is that for P PUSCH, b, f, c (i, j, q d , l), the number of antenna ports that actually transmit signals in the precoding matrix of PUSCH (that is, non-zero in the precoding matrix (The antenna port corresponding to the element) in the total number of antenna ports configured by the base station for the transmission mode corresponding to PUSCH, power scaling is performed, and then the scaled power is evenly divided on the antenna port that actually sends the signal (this is 3GPP NR System R15 or LTE system rules).
- an uplink power control rule is to use P PUSCH, b, f, c (i, j, q d , l) in the PUSCH precoding matrix to actually transmit the antenna port of the signal (that is, non-zero in the precoding matrix (The antenna port corresponding to the element) is divided equally.
- an uplink power control rule is to perform power scaling on P PUSCH, b, f, c (i, j, q d , l) according to the scaling factor of the precoding matrix indicated by the PUSCH, and transmit from each antenna port
- the power is the sum of the number of non-zero elements of the scaled power, for example, if the PUSCH precoding matrix is Then scale P PUSCH, b, f, c (i, j, q d , l) to the scaling factor of the precoding matrix Times the square of, and then the transmission power of the two antenna ports with non-zero elements corresponding to the precoding matrix is the scaled power.
- Step 32 Determine the transmission power of the uplink signal according to the uplink power control rule indicated by the first indication information.
- the terminal determines the transmission power of the uplink signal according to the uplink power control rule indicated by the first indication information only when the terminal needs to send the uplink signal.
- the terminal After determining the transmission power of the uplink signal, the terminal uses the transmission power to transmit the uplink signal.
- the first indication information indicates the PUSCH uplink power control rule in the codebook-based transmission mode.
- the base station instructs the terminal to send a PUSCH, and the transmission mode is an uplink transmission method based on a codebook.
- the terminal determines the transmission power of the PUSCH using the first instruction information before sending the PUSCH, and sends the PUSCH.
- the first indication information may indicate the uplink power control rule when the uplink signal is in different transmission modes.
- the first indication information indicates the PUSCH uplink power control rule in the codebook-based uplink transmission mode and the PUSCH uplink power control rule in the non-codebook-based uplink transmission mode, and they may be the same or different.
- the uplink power control rule for the PUSCH in the uplink transmission mode based on the codebook indicated by the first indication information is used to determine the transmission power of the PUSCH;
- the PUSCH uplink power control rule in the non-codebook uplink transmission mode indicated by the first indication information is used to determine the PUSCH transmission power.
- the first indication information indicates uplink power control rules of multiple uplink signals.
- the first indication information indicates the uplink power control rule of the PUSCH and the uplink power control rule of the SRS in the uplink transmission mode based on the codebook. Then, when the terminal wants to send the PUSCH in the uplink transmission mode based on the codebook, the uplink power control rule for the PUSCH in the uplink transmission mode based on the codebook indicated by the first indication information is used to determine the transmission power of the PUSCH; when the terminal wants to send the SRS At this time, the transmission power of the SRS is determined using the uplink power control rule of the SRS indicated by the first indication information.
- the terminal may determine the uplink power control rule indicated by the first indication information, and then determine the transmission power of the uplink signal according to the uplink power control rule. After determining the transmission power of the uplink signal, the terminal transmits the uplink signal using the determined transmission power.
- the embodiments of the present disclosure can achieve the same understanding of uplink power control between the base station and the terminal, thereby ensuring the performance of uplink transmission.
- the first indication information in the embodiment of the present disclosure may also indicate the precoding and / or the number of transmission streams of the uplink signal at the same time.
- the terminal may simultaneously obtain the power control rule of the uplink signal and the number of precoding and / or transport streams.
- the terminal may also report to the base station an uplink power control rule supported by the terminal and / or a power amplifier (PA) of the terminal Capability to facilitate the base station to determine the uplink power control rule of the terminal's uplink signal.
- PA power amplifier
- the base station may indicate rule 1 or rule 2 for the terminal through the first indication information, but cannot indicate rule 3 for the terminal.
- the first indication information cannot indicate to the terminal a rule that requires all PAs of the terminal to reach the maximum transmit power;
- the maximum transmit power is the maximum output power corresponding to the power class of the UE.
- an uplink power control rule enables the terminal to determine the transmission power of a single antenna port (or single PA) according to the uplink power control rule when transmitting, the maximum power can be reached (for example, the uplink signal is PUSCH, and the maximum power is 3GPP TS 38.213 In V15.3.0 (2018-09) version is P CMAX, f, c (i) in Section 7.1.1, the upstream power control rule is considered to require a single PA of the terminal to reach the maximum transmit power.
- an uplink power control rule enables the terminal to transmit power at any single antenna port (or single PA) determined according to the uplink power control rule
- the transmission power can reach the maximum power (for example, the uplink signal is PUSCH, and the maximum power is 3GPP TS 38.213 V15.3.0 (2018-09) version is P CMAX, f, c (i) in section 7.1.1
- the upstream power control rule is considered to be a requirement that all PAs of the terminal can reach the maximum transmit power rule.
- the terminal's PA capability is reported by whether the terminal's PA can reach the maximum transmit power.
- the terminal's PA capability may correspond to a set of uplink power control rules
- another PA capability may correspond to another set of uplink power control rules.
- the terminal reports its PA capability in the manner of the maximum power that can be achieved by the antenna port.
- the first indication information may be performed by at least one of radio resource control (RRC) signaling, media access control-control element (MAC-CE) signaling, and downlink control information (DCI) Instructions.
- RRC radio resource control
- MAC-CE media access control-control element
- DCI downlink control information
- the first indication information is dedicated signaling for indicating an uplink power control rule of an uplink signal, wherein the dedicated signaling includes at least two states, and the first state of the dedicated signaling is used to indicate the first An uplink power control rule.
- the second state of the first signaling is used to indicate a second uplink power control rule.
- the first uplink power control rule is different from the second uplink power control rule.
- the terminal may use the first uplink power control rule to determine the transmission power of the uplink signal when the dedicated signaling is in the first state; and, when the dedicated signaling is in the second state , The second uplink power control rule is used to determine the transmit power of the uplink signal.
- the uplink signal is a PUSCH based on a codebook transmission mode
- the first indication message is an RRC signaling used to indicate an uplink power control rule of the uplink signal.
- the value can be ⁇ value 1, value 2, value 3 ⁇ , where value 1 is the first state, and the corresponding first uplink power control rule is for P PUSCH, b, f, c (i, j , q d , l)
- the number of antenna ports that actually transmit signals in the precoding matrix of the PUSCH that is, the antenna ports corresponding to non-zero elements in the precoding matrix
- the proportion of the power is scaled, and then the scaled power is evenly divided on the antenna port that actually sends the signal (this is the rule of the 3GPP NR system R15 or LTE system); the value 2 is the second state, and the corresponding second uplink
- the power control rule is the uplink power control rule is the antenna port
- the dedicated signaling may be 1-bit signaling. For example, when the value of the signaling is 0, it indicates the first uplink power control rule, and when the value is 1, it indicates the second uplink power control rule.
- the first indication information is a state of the indication information of the precoding of the uplink signal and the number of transmission streams, and the first indication information is not used to indicate the precoding of the uplink signal.
- the first indication information is used to indicate the number of transmission streams of the uplink signal.
- the terminal may determine the transmission power of the uplink signal according to the uplink power control rule corresponding to the current state of the precoding of the uplink signal and the indication information of the number of transmission streams.
- the first indication information is precoding indication information of the uplink signal, for example, when the uplink signal is a PUSCH based on a codebook transmission method or a PUSCH or a type 2 configured PUSCH or a non-codebook based transmission method, it is in DCI The precoder and the transmission indicator.
- the precoding indication information includes at least two precoding states, the first state is used to indicate the first uplink power control rule and the first precoding, and the second state is used to indicate the second uplink power control rule With the second precoding, it can be seen that the first precoding state corresponds to the first uplink power control rule, and the second precoding state corresponds to the second uplink power control rule.
- the precoding instruction information may further include more precoding states, such as the third and fourth precoding states.
- the precoding instruction information corresponds to the third state, it corresponds to the third uplink power control rule. Etc ..., this embodiment of the present disclosure does not specifically limit this.
- the terminal may determine the transmission power of the uplink signal according to the first uplink power control rule; and, in the precoding instruction information, indicate the first In the second state, the transmission power of the uplink signal is determined according to the second uplink power control rule.
- the precoding indicated by the first precoding state and the second precoding state may be the same precoding, and the first uplink power control rule is different from the second uplink power control rule. That is, the precoding instruction information includes different state information indicating the same precoding (TPMI), and the different state information corresponds to different uplink power control rules.
- the precoding indicated by the first precoding state and the second precoding state may be different precodings, and the first uplink power control rule is different from the second uplink power control rule.
- Table 1 shows the corresponding attributes of precoding instruction information (such as precoder and transmission indicator in DCI) under different precoding states.
- Bitfield mapped refers to the index of the precoding state
- codebookSubset indicates the codebook subset of PUSCH in the codebook-based transmission mode indicated by the base station
- nonCoherent indicates non-coherent transmission
- fullyAndPartialAndNonCoherent indicates full-coherent transmission.
- codebookSubset nonCoherent
- the bit corresponding to the precoder and the rank of the indicator is 0, the value 1 corresponds to the first precoding state during single-stream transmission; the bitmap field corresponds to the index 3 and the value 4 corresponds to The second precoding state during single stream transmission.
- the control rule determines the transmission power of the uplink signal (for example, the transmission power is not scaled).
- the first indication information is the precoding indication information of the uplink signal; wherein, when the precoding indicated by the first indication information meets the first preset condition, the first indication information indicates the first uplink power control rule; When the precoding indicated by the first indication information meets a second preset condition, the first indication information indicates a second uplink power control rule, the first preset condition and the second preset condition are different, the The first uplink power control rule is different from the second uplink power control rule;
- the terminal may determine the transmit power of the uplink signal according to the first uplink power control rule when the precoding indicated by the first indication information meets the first preset condition; and, in the When the precoding indicated by the first indication information meets the second preset condition, the transmit power of the uplink signal is determined according to the second uplink power control rule.
- the first preset condition is: the sum of squares of the modulus values of the pre-encoded matrix elements is 1
- the second preset condition is: the square of the modulus values of the pre-encoded matrix elements The sum is not equal to 1.
- the pre-encoded matrix element is understood as an element after being multiplied by the scaling factor (or called scaling factor) before the pre-encoding matrix. For example, suppose the precoding matrix is Then the elements of the matrix are with Since the sum of the modulus values of these two elements is 1, it is precoding that satisfies the first preset condition. As another example, suppose the precoding matrix is Then, the elements of the matrix are 1/2 and 1/2, and the sum of the modulus values of these two elements is 1/4. Therefore, it is precoding that satisfies the second preset condition.
- the codebook of the uplink signal includes at least two codewords; the positions of non-zero elements in the at least two codewords are the same, and the relative phase relationship between the non-zero elements is the same, and the scaling factors (scaling factors) are different.
- the scaling factor refers to the coefficient in front of the matrix of codewords.
- the first indication information is precoding indication information of an uplink signal, wherein, when the precoding indication information corresponds to different codewords in the at least two codewords, the precoding indication information indicates different Uplink power control rules.
- the different uplink power control rules include at least a first uplink power control rule and a second uplink power control rule.
- the terminal may determine the transmission power of the uplink signal according to the first uplink power control rule when the first indication information indicates the first codeword of the at least two codewords; and , When the first indication information indicates the second codeword of the at least two codewords, determine the transmission power of the uplink signal according to the second uplink power control rule; the first uplink power control rule It is different from the second uplink power control rule.
- the first of the two precoded codewords is The second one is The scale factor of the non-zero element of the first codeword is The scaling factor of the non-zero elements of the second codeword is
- the precoding instruction information indicates the first uplink power control rule
- the precoding indication information indicates a second uplink power control rule, where the first uplink power control rule may be different from the second uplink power control rule.
- this implementation is also applicable to the codebook that contains more codewords, such as the third codeword, and between these codewords (such as the third codeword, the first codeword, and the second Codewords) all contain non-zero elements at the same position, and the relative phase relationship between the non-zero elements is the same, etc., and the scaling factors are different.
- the first indication information also indicates a codebook subset limitation of the uplink signal.
- the first indication information is codebook subset limitation indication information of the uplink signal, and there is a correspondence between the codebook subset limitation information and the uplink power control rule.
- one codebook subset restriction information corresponds to one uplink power control rule
- one uplink power control rule corresponds to at least one codebook subset restriction information.
- the terminal may determine the transmission power of the uplink signal according to the uplink power control rule corresponding to the codebook subset restriction indication information of the uplink signal.
- the first indication information is codebook subset limitation indication information of the uplink signal (for example, RRC signaling codebooksubset), wherein the uplink power control rule indicated by the codebook subset limitation indication information It is: an uplink power control rule corresponding to the codebook subset restriction indication information.
- the candidate values of the codebook subset limitation indication information include at least a first candidate value and a second candidate value, and different candidate values correspond to different groups of codebook subsets.
- the codebook subset limitation indication information corresponds to the first candidate value, it corresponds to the first uplink power control rule, and when the codebook subset limitation indication information corresponds to the second candidate value, it corresponds to the second uplink power control rule.
- the candidate values of the codebook subset limitation indication information may further include third candidate values and more values, which respectively correspond to more uplink power control rules.
- the base station may indicate to the terminal that the codebook subset limitation information of the uplink signal is ⁇ codebook subset limitation 1, codebook subset limitation 2, codebook subset limitation 3, codebook subset limitation 4 ⁇ ,
- the codebook subset limitation indication information indicates “codebook subset limitation 1" or “codebook subset limitation 2", corresponding to an uplink power control rule;
- the codebook subset limitation indication information When “Codebook Subset Limit 3" or “Codebook Subset Limit 4" is indicated, it corresponds to another uplink power control rule.
- the first indication information includes at least two states, where the at least two states respectively correspond to different uplink power control rules.
- the first codebook subset limitation indication information indicated by the base station may correspond to different codebook subsets in different states of the first indication information.
- the terminal may receive the codebook subset limitation indication information sent by the base station, the codebook subset limitation indication information indicating the first codebook subset limitation state; the first indication information indicates the first In a state, it is determined that the first codebook subset limitation state corresponds to the first codebook subset limitation; and, when the first indication information indicates the second state, the first codebook subset limitation is determined The state corresponds to the second codebook subset limitation; wherein the first codebook subset limitation is different from the second codebook subset limitation.
- the first indication information includes at least a first state and a second state, and the first state and the second state correspond to different uplink power control rules.
- the first codebooksubset indicated by the base station corresponds to the first codebook subset
- the first codebooksubset indicated by the base station corresponds to the second codebook subset Set
- the first codebook subset and the second codebook subset are different.
- the first state of the first indication information corresponds to the uplink power control rule 1
- the second state of the first indication information corresponds to the uplink power control rule 2.
- the codebook subset indicated by the base station for the terminal restricts the codebooksubset to nonCoherent
- the terminal determines the precoding indicated by the precoding indication information sent by the base station for the uplink signal according to the uplink power control rule indicated by the first indication information. Assuming that the Bit field mapped to index of the TPMI received by the terminal is 0, when the first indication information is in the first state, the terminal considers the precoding matrix to be The uplink power control rule is the first uplink power control rule; when the first indication information is in the second state, the terminal considers the precoding matrix to be The uplink power control rule is the second uplink power control rule.
- the first indication information is precoding indication information of an uplink signal (for example, a precoder and transmission indicator in DCI), wherein the uplink power control rule indicated by the precoding indication information is: and the precoding indication The upstream power control rule corresponding to the codeword group indicated by the information.
- each codeword group includes at least one codeword, and there is no overlapping codeword between different codeword groups.
- the codebook of the uplink signal includes at least a first codeword group and a second codeword group, and there is no overlapping codeword between different codeword groups.
- the precoding instruction information corresponds to the first codeword group, it corresponds to the first type of uplink power control rule; when the precoding instruction information corresponds to the second codeword group, it corresponds to the second type of uplink power control rule.
- this implementation is also applicable to the case where the codebook also contains multiple codeword groups such as the third codeword group.
- the precoding indication information corresponds to the third codeword group, it can correspond to the first Three upstream power control rules, etc.
- the total transmit power of the uplink signal is 1/2 of the transmit power calculated according to the uplink power control calculation formula; when the base station indicates the second TPMI codeword
- the total transmission power of the uplink signal is the transmission power calculated according to the calculation formula of the uplink power control.
- the first indication information includes at least two candidate values, where the at least two candidate values respectively correspond to different uplink power control rules; the first codebook subset limitation indication information indicated by the base station is provided in the The different candidate values of the first indication information respectively correspond to different codebook subsets.
- the corresponding codebook subset is TPMI 0-1 in Table 3 below; when the first indication information is the second candidate value, the base station When the indicated codebooksubset is non-coherent, the corresponding codebook subset is TPMI 0-2 in the following table.
- the uplink power control rule may include at least a first uplink power control rule and a second uplink power control rule.
- the first uplink power control rule may be a predefined third uplink power control rule (such as the uplink power control rule defined in 3GPP R15)
- the second uplink power control rule may be a predefined fourth uplink power Control rules (such as the uplink power control rules defined in 3GPP R16).
- the first uplink power control rule may be a predefined uplink power control rule (such as the uplink power control rule defined in 3GPP R15), and the second uplink power control rule may be an uplink power control rule reported by the terminal or The uplink power control rule corresponding to the power amplifier (PA) capability reported by the terminal.
- a predefined uplink power control rule such as the uplink power control rule defined in 3GPP R15
- the second uplink power control rule may be an uplink power control rule reported by the terminal or The uplink power control rule corresponding to the power amplifier (PA) capability reported by the terminal.
- PA power amplifier
- an uplink power control method provided by an embodiment of the present disclosure when applied to the base station side, includes:
- Step 41 Send first indication information to the terminal, where the first indication information is used to indicate the uplink power control rule of the uplink signal.
- the uplink signal may be one or more of PUSCH, PUCCH, SRS, DMRS of PUSCH, DMRS of PUCCH, and DMRS of PUCCH.
- the embodiments of the present disclosure are not limited to the above signals.
- the uplink signal may be a certain type of the above signal or all types of the above signal.
- the signal is a PUSCH based on a codebook transmission method.
- the first indication information may indicate the uplink power control rule when the uplink signal is in different transmission modes.
- the first indication information indicates the PUSCH uplink power control rule in the codebook-based uplink transmission mode and the PUSCH uplink power control rule in the non-codebook-based uplink transmission mode, and the two may be the same or different.
- the first indication information indicates uplink power control rules of multiple uplink signals.
- the first indication information indicates the uplink power control rule of the PUSCH and the uplink power control rule of the SRS in the uplink transmission mode based on the codebook.
- the uplink power control rule is a power scaling rule for uplink signals.
- the uplink power control formula for example, in the NR system, TS 38.213 V15.3.0 (2018-09) version is P PUSCH in section 7.1.1 , b, f, c (i, j, q d , l)) rules for scaling.
- an uplink power control rule is that for P PUSCH, b, f, c (i, j, q d , l), the number of antenna ports that actually transmit signals in the precoding matrix of PUSCH (that is, non-zero in the precoding matrix (The antenna port corresponding to the element) in the total number of antenna ports configured by the base station for the transmission mode corresponding to PUSCH, power scaling is performed, and then the scaled power is evenly divided on the antenna port that actually sends the signal (this is 3GPP NR Rules of system R15 or LTE system); for another example, an uplink power control rule is an antenna that actually transmits signals in PPUSCH, b, f, c (i, j, q d , l) in the precoding matrix of PUSCH The ports (that is, the antenna ports corresponding to non-zero elements in the precoding matrix) are equally divided; for another example, an uplink power control rule is to divide P PUSCH, b, f, c (i,
- the transmit power of each antenna port is the sum of the number of non-zero elements of the scaled power. For example, if the PUSCH precoding matrix is Then scale P PUSCH, b, f, c (i, j, q d , l) to the scaling factor of the precoding matrix Times the square power of, and then the transmission power of the first antenna port with non-zero elements corresponding to the precoding matrix is the scaled power.
- the uplink power control rule may include at least a first uplink power control rule and a second uplink power control rule.
- the first uplink power control rule may be an uplink power control rule defined by 3GPP R15
- the second uplink power control rule may be an uplink power control rule defined by 3GPP R16.
- the first uplink power control rule may be an uplink power control rule defined by 3GPP R15
- the second uplink power control rule may be an uplink power control rule reported by a terminal or a power amplifier (PA) capability reported by the terminal.
- the uplink power control rule is a power scaling rule for uplink signals.
- the base station realizes the indication of the uplink power control rule of the terminal's uplink signal, and can achieve the same understanding of the uplink power control between the base station and the terminal, thereby ensuring the performance of uplink transmission.
- the base station may also receive the uplink power control rule supported by the terminal and / or the power amplifier (PA) capability of the terminal reported by the terminal; and then according to the uplink power control rule supported by the terminal and / or The power amplifier PA capability of the terminal determines the uplink power control rule of the uplink signal, so that a suitable uplink power control rule (ie, first indication information) can be determined for the terminal at the base station side, for example, supported by the terminal.
- a suitable uplink power control rule ie, first indication information
- the value range of the uplink power control rule that the first indication information determined by the base station may indicate should conform to the uplink power control rule supported by the terminal and / or the terminal ’s
- the power amplifier PA capability that is, does not exceed the uplink power control rule supported by the terminal and / or the power amplifier (PA) capability of the terminal.
- the base station may indicate rule 1 or rule 2 for the terminal through the first indication information, but cannot indicate rule 3 for the terminal.
- the first indication information cannot indicate to the terminal a rule that requires all PAs of the terminal to reach the maximum transmit power; optionally
- the maximum transmit power is the maximum output power corresponding to the power class power class of the UE; optionally, the maximum transmit power in this example is the maximum output power corresponding to the power class power class of the UE.
- an uplink power control rule enables the UE to transmit power according to a single antenna port (or single PA) determined according to the uplink power control rule
- the transmission power can reach the maximum power (for example, the uplink signal is PUSCH, and the maximum power is 3GPP TS 38.213 In V15.3.0 (2018-09) version is P CMAX, f, c (i) in Section 7.1.1
- the upstream power control rule is considered to require a single PA of the terminal to reach the maximum transmit power.
- an uplink power control rule enables the UE to transmit power at any single antenna port (or single PA) determined according to the uplink power control rule
- the transmission power can reach the maximum power (for example, the uplink signal is PUSCH, and the maximum power is 3GPP TS 38.213 V15.3.0 (2018-09) version is P CMAX, f, c (i) in section 7.1.1
- the upstream power control rule is considered to be a requirement that all PAs of the terminal can reach the maximum transmit power rule.
- the terminal's PA capability is reported by whether the terminal's PA can reach the maximum transmit power.
- the terminal's PA capability there is a correspondence between the terminal's PA capability and the uplink power control rule.
- one PA capability may correspond to a set of uplink power control rules
- another PA capability may correspond to another set of uplink power control rules.
- the first indication information indicates the uplink power control rule in the uplink power control rule group corresponding to the PA capability, it is considered that the uplink power control rule indicated by the first indication information conforms to the supported uplink power control rule of the terminal and / or the terminal
- the power amplifier PA capability that is, does not exceed the uplink power control rules supported by the terminal and / or the power amplifier (PA) capability of the terminal.
- PA power amplifier
- the terminal reports its PA capability in the manner of the maximum power that can be achieved by the antenna port.
- the base station may also determine the uplink scheduling information of the uplink signal according to the uplink power control rule of the uplink signal indicated by the first indication information.
- the uplink scheduling information includes but is not limited to at least one of the following information: precoding indication information (TPMI), transmission layer number indication (RI), SRS resource indication (SRI), modulation and coding method (MCS), and the like.
- the first indication information may be performed by at least one of radio resource control (RRC) signaling, media access control-control element (MAC-CE) signaling, and downlink control information (DCI) Instructions.
- RRC radio resource control
- MAC-CE media access control-control element
- DCI downlink control information
- the first indication information is dedicated signaling for indicating an uplink power control rule of an uplink signal, wherein the dedicated signaling includes at least two states, and the first state of the dedicated signaling is used to indicate the first An uplink power control rule.
- the second state of the first signaling is used to indicate a second uplink power control rule.
- the first uplink power control rule is different from the second uplink power control rule.
- the uplink signal is a PUSCH based on a codebook transmission mode
- the first indication message is an RRC signaling used to indicate an uplink power control rule of the uplink signal.
- the value can be ⁇ value 1, value 2, value 3 ⁇ , where value 1 is the first state, and the corresponding first uplink power control rule is for P PUSCH, b, f, c (i, j , q d , l)
- the number of antenna ports that actually transmit signals in the precoding matrix of the PUSCH that is, the antenna ports corresponding to non-zero elements in the precoding matrix
- the proportion of the power is scaled, and then the scaled power is evenly divided on the antenna port that actually sends the signal (this is the rule of the 3GPP NR system R15 or LTE system); the value 2 is the second state, and the corresponding second uplink
- the power control rule is the uplink power control rule is the antenna port
- the dedicated signaling may be 1-bit signaling. For example, when the value of the signaling is 0, it indicates the first uplink power control rule, and when the value is 1, it indicates the second uplink power control rule.
- the first indication information is a state of the indication information of the precoding of the uplink signal and the number of transmission streams, and the first indication information is not used to indicate the precoding of the uplink signal.
- the first indication information is used to indicate the number of transmission streams of the uplink signal.
- the first indication information is precoding indication information of the uplink signal, for example, when the uplink signal is a PUSCH based on a codebook transmission method or a PUSCH or a type 2 configured PUSCH or a non-codebook based transmission method, it is in DCI The precoder and the transmission indicator.
- the precoding indication information includes at least two precoding states, the first state is used to indicate the first uplink power control rule and the first precoding, and the second state is used to indicate the second uplink power control rule With the second precoding, it can be seen that the first precoding state corresponds to the first uplink power control rule, and the second precoding state corresponds to the second uplink power control rule.
- the precoding instruction information may further include more precoding states, such as the third and fourth precoding states.
- the precoding instruction information corresponds to the third state, it corresponds to the third uplink power control rule. Etc ..., this embodiment of the present disclosure does not specifically limit this.
- the precoding indicated by the first precoding state and the second precoding state may be the same precoding, and the first uplink power control rule is different from the second uplink power control rule. That is, the precoding instruction information includes different state information indicating the same precoding (TPMI), and the different state information corresponds to different uplink power control rules.
- the precoding indicated by the first precoding state and the second precoding state may be different precodings, and the first uplink power control rule is different from the second uplink power control rule.
- Table 1 shows the corresponding attributes of precoding instruction information (such as precoder and transmission indicator in DCI) under different precoding states.
- Bitfield mapped refers to the index of the precoding state
- codebookSubset indicates the codebook subset of PUSCH in the codebook-based transmission mode indicated by the base station
- nonCoherent indicates non-coherent transmission
- fullyAndPartialAndNonCoherent indicates full-coherent transmission.
- codebookSubset nonCoherent
- the bit corresponding to the precoder and the rank of the indicator is 0, the value 1 corresponds to the first precoding state during single-stream transmission; the bitmap field corresponds to the index 3 and the value 4 corresponds to The second precoding state during single stream transmission.
- Bit field mapped to index is 3
- the control rule determines the transmission power of the uplink signal (for example, the transmission power is not scaled).
- the first indication information is the precoding indication information of the uplink signal; wherein, when the precoding indicated by the first indication information meets the first preset condition, the first indication information indicates the first uplink power control rule; When the precoding indicated by the first indication information meets a second preset condition, the first indication information indicates a second uplink power control rule, the first preset condition and the second preset condition are different, the The first uplink power control rule is different from the second uplink power control rule;
- the first preset condition is: the sum of squares of the modulus values of the pre-encoded matrix elements is 1
- the second preset condition is: the square of the modulus values of the pre-encoded matrix elements The sum is not equal to 1.
- the pre-encoded matrix element is understood as an element after being multiplied by the scaling factor (or called scaling factor) before the pre-encoding matrix. For example, suppose the precoding matrix is Then the elements of the matrix are with Since the sum of the modulus values of these two elements is 1, it is precoding that satisfies the first preset condition. As another example, suppose the precoding matrix is Then, the elements of the matrix are 1/2 and 1/2, and the sum of the modulus values of these two elements is 1/4. Therefore, it is precoding that satisfies the second preset condition.
- the codebook of the uplink signal includes at least two codewords; the positions of non-zero elements in the at least two codewords are the same, and the relative phase relationship between the non-zero elements is the same, and the scaling factors are different.
- the scaling factor refers to the coefficient in front of the matrix of codewords.
- the first indication information is precoding indication information of an uplink signal, wherein, when the precoding indication information corresponds to different codewords in the at least two codewords, the precoding indication information indicates different Uplink power control rules.
- the different uplink power control rules include at least a first uplink power control rule and a second uplink power control rule.
- the first of the two precoded codewords is The second one is The scale factor of the non-zero element of the first codeword is The scaling factor of the non-zero elements of the second codeword is
- the precoding instruction information indicates the first uplink power control rule
- the precoding indication information indicates a second uplink power control rule, where the first uplink power control rule may be different from the second uplink power control rule.
- this implementation is also applicable to the codebook that contains more codewords, such as the third codeword, and between these codewords (such as the third codeword, the first codeword, and the second Codewords) all contain non-zero elements at the same position, and the relative phase relationship between the non-zero elements is the same, etc., and the scaling factors are different.
- the first indication information also indicates a codebook subset limitation of the uplink signal.
- the first indication information is codebook subset limitation indication information of the uplink signal, and there is a correspondence between the codebook subset limitation information and the uplink power control rule.
- one codebook subset restriction information corresponds to one uplink power control rule
- one uplink power control rule corresponds to at least one codebook subset restriction information.
- the first indication information is codebook subset limitation indication information of the uplink signal (for example, RRC signaling codebooksubset), wherein the uplink power control rule indicated by the codebook subset limitation indication information It is: an uplink power control rule corresponding to the codebook subset restriction indication information.
- the candidate values of the codebook subset limitation indication information include at least a first candidate value and a second candidate value, and different candidate values correspond to different groups of codebook subsets.
- the codebook subset limitation indication information corresponds to the first candidate value, it corresponds to the first uplink power control rule, and when the codebook subset limitation indication information corresponds to the second candidate value, it corresponds to the second uplink power control rule.
- the candidate values of the codebook subset limitation indication information may further include third candidate values and more values, which respectively correspond to more uplink power control rules.
- the base station may indicate to the terminal that the codebook subset limitation information of the uplink signal is ⁇ codebook subset limitation 1, codebook subset limitation 2, codebook subset limitation 3, codebook subset limitation 4 ⁇ ,
- the codebook subset limitation indication information indicates “codebook subset limitation 1" or “codebook subset limitation 2", corresponding to an uplink power control rule;
- the codebook subset limitation indication information When “Codebook Subset Limit 3" or “Codebook Subset Limit 4" is indicated, it corresponds to another uplink power control rule.
- the first indication information includes at least two states, where the at least two states respectively correspond to different uplink power control rules.
- the first codebook subset limitation indication information indicated by the base station may correspond to different codebook subsets in different states of the first indication information.
- the terminal may receive the codebook subset limitation indication information sent by the base station, the codebook subset limitation indication information indicating the first codebook subset limitation state; the first indication information indicates the first In a state, it is determined that the first codebook subset limitation state corresponds to the first codebook subset limitation; and, when the first indication information indicates the second state, the first codebook subset limitation is determined The state corresponds to the second codebook subset limitation; wherein the first codebook subset limitation is different from the second codebook subset limitation.
- the first indication information includes at least a first state and a second state, and the first state and the second state correspond to different uplink power control rules.
- the first codebooksubset indicated by the base station corresponds to the first codebook subset
- the first codebooksubset indicated by the base station corresponds to the second codebook subset Set
- the first codebook subset and the second codebook subset are different.
- the first state of the first indication information corresponds to the uplink power control rule 1
- the second state of the first indication information corresponds to the uplink power control rule 2.
- the codebook subset indicated by the base station for the terminal restricts the codebooksubset to nonCoherent
- the terminal determines the precoding indicated by the precoding indication information sent by the base station for the uplink signal according to the uplink power control rule indicated by the first indication information. Assuming that the Bit field mapped to index of the TPMI received by the terminal is 0, when the first indication information is in the first state, the terminal considers the precoding matrix to be The uplink power control rule is the first uplink power control rule; when the first indication information is in the second state, the terminal considers the precoding matrix to be The uplink power control rule is the second uplink power control rule.
- the first indication information is precoding indication information of an uplink signal (for example, a precoder and transmission indicator in DCI), wherein the uplink power control rule indicated by the precoding indication information is: and the precoding indication The upstream power control rule corresponding to the codeword group indicated by the information.
- each codeword group includes at least one codeword, and there is no overlapping codeword between different codeword groups.
- the codebook of the uplink signal includes at least a first codeword group and a second codeword group, and there is no overlapping codeword between different codeword groups.
- the precoding instruction information corresponds to the first codeword group, it corresponds to the first type of uplink power control rule; when the precoding instruction information corresponds to the second codeword group, it corresponds to the second type of uplink power control rule.
- this implementation is also applicable to the case where the codebook also contains multiple codeword groups such as the third codeword group.
- the precoding indication information corresponds to the third codeword group, it can correspond to the first Three upstream power control rules, etc.
- the total transmit power of the uplink signal is 1/2 of the transmit power calculated according to the uplink power control calculation formula; when the base station indicates the second TPMI codeword
- the total transmission power of the uplink signal is the transmission power calculated according to the calculation formula of the uplink power control.
- the first indication information includes at least two candidate values, where the at least two candidate values respectively correspond to different uplink power control rules; the first codebook subset limitation indication information indicated by the base station is provided in the The different candidate values of the first indication information respectively correspond to different codebook subsets.
- the corresponding codebook subset is TPMI0-1 in Table 3; when the first indication information is the second candidate value, the base station indicates When the codebooksubset is non-coherent, the corresponding codebook subset is TPMI 0-2 in Table 3.
- the embodiments of the present disclosure also provide an apparatus for implementing the above method.
- the terminal 50 includes: a processor 501, a transceiver 502, a memory 503, a user interface 504, and a bus interface, where:
- the terminal 500 further includes: a computer program stored on the memory 503 and executable on the processor 501.
- the transceiver 502 is configured to receive first indication information sent by a base station, and the first indication information is used to indicate an uplink power control rule of an uplink signal;
- the processor 501 is configured to read the program in the memory and perform the following process: determine the transmission power of the uplink signal according to the uplink power control rule indicated by the first indication information.
- the processor 501 is further configured to send the uplink signal using the transmission power of the uplink signal.
- the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 501 and various circuits of the memory represented by the memory 503 are linked together.
- the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article.
- the bus interface provides an interface.
- the transceiver 502 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.
- the user interface 504 may also be an interface that can be externally connected to a desired device.
- the connected devices include, but are not limited to, a keypad, a display, a speaker, a microphone, and a joystick.
- the processor 501 is responsible for managing the bus architecture and general processing, and the memory 503 may store data used by the processor 501 in performing operations.
- the transceiver is further configured to report the uplink power control rule supported by the terminal and / or the PA power capability of the terminal to the base station before receiving the first indication information.
- the first indication information is indicated by at least one of RRC signaling, MAC-CE signaling, and DCI.
- the first indication information is dedicated signaling for indicating an uplink power control rule of an uplink signal, where the dedicated signaling includes at least a first state and a second state, and the first of the dedicated signaling A state is used to indicate a first uplink power control rule, and a second state of the dedicated signaling is used to indicate a second uplink power control rule, the first uplink power control rule is different from the second uplink power control rule;
- the processor is also used to:
- the first uplink power control rule is used to determine the transmit power of the uplink signal.
- the second uplink power control rule is used to determine the transmit power of the uplink signal.
- the dedicated signaling is 1-bit signaling.
- the first indication information is a state of the indication information of the precoding of the uplink signal and the number of transmission streams, and the first indication information is not used to indicate the precoding of the uplink signal;
- the processor is also used to:
- the transmission power of the uplink signal is determined according to the uplink power control rule corresponding to the current state of the precoding of the uplink signal and the indication information of the number of transmission streams.
- the first indication information simultaneously indicates the precoding and / or the number of transmission streams of the uplink signal.
- the first indication information is precoding indication information of an uplink signal, wherein the state of the first indication information includes at least a first state and a second state, and the first state is used to indicate the first uplink Power control rule and first precoding, the second state is used to indicate a second uplink power control rule and second precoding, the first uplink power control rule is different from the second uplink power control rule, the The first precoding is the same as or different from the second precoding;
- the processor is also used to:
- the precoding indication information indicates the first state, determining the transmission power of the uplink signal according to the first uplink power control rule;
- the transmission power of the uplink signal is determined according to the second uplink power control rule.
- the first indication information is precoding indication information of an uplink signal; wherein, when the precoding indicated by the first indication information meets a first preset condition, the first indication information indicates the first uplink Power control rule; when the precoding indicated by the first indication information satisfies a second preset condition, the first indication information indicates a second uplink power control rule, the first preset condition and the second preset condition Different, the first uplink power control rule is different from the second uplink power control rule;
- the processor is also used to:
- the transmit power of the uplink signal is determined according to the second uplink power control rule.
- the first preset condition is: the sum of squares of the modulus values of the pre-encoded matrix elements is 1
- the second preset condition is: the square of the modulus values of the pre-encoded matrix elements The sum is not equal to 1.
- the codebook of the uplink signal includes at least two codewords; the positions of non-zero elements in the at least two codewords are the same, and the relative phase relationship between the non-zero elements is the same, and the at least two The sum of squares of the modular values of the matrix elements of the codewords is different;
- the first indication information is precoding indication information of an uplink signal, wherein, when the precoding indication information indicates different codewords in the at least two codewords, the first indication information indicates different uplink power Control rules
- the processor is also used to:
- the first indication information indicates the first codeword of the at least two codewords, determine the transmission power of the uplink signal according to the first uplink power control rule;
- the first indication information indicates the second codeword of the at least two codewords
- determine the transmission power of the uplink signal according to the second uplink power control rule the first uplink power control rule is The second uplink power control rule is different.
- the first indication information also indicates a codebook subset limitation of the uplink signal.
- the first indication information is codebook subset limitation indication information of the uplink signal, and there is a correspondence between the codebook subset limitation information and the uplink power control rule;
- the processor is also used to:
- the transmission power of the uplink signal is determined according to the uplink power control rule corresponding to the codebook subset restriction indication information of the uplink signal.
- one codebook subset restriction information corresponds to one uplink power control rule
- one uplink power control rule corresponds to at least one codebook subset restriction information
- the first indication information includes at least a first state and a second state, where the first state and the second state respectively correspond to different uplink power control rules;
- the transceiver is further configured to receive codebook subset restriction indication information sent by the base station, and the codebook subset restriction indication information indicates a first codebook subset restriction status;
- the processor is further configured to: when the first indication information indicates the first state, determine that the first codebook subset restriction state corresponds to the first codebook subset restriction; and, in the first When the indication information indicates the second state, it is determined that the first codebook subset limitation state corresponds to the second codebook subset limitation; wherein the first codebook subset limitation is different from the second codebook subset limitation .
- the uplink power control rule includes at least a first uplink power control rule and a second uplink power control rule; wherein,
- the first uplink power control rule is a predefined third uplink power control rule
- the second uplink power control rule is a predefined fourth uplink power control rule
- the first uplink power control rule is a predefined uplink power control rule
- the second uplink power control rule is an uplink power control rule reported by the terminal or an uplink power control rule corresponding to the PA capability of the power amplifier reported by the terminal.
- an embodiment of the present disclosure provides another terminal 60, including:
- the receiving unit 61 is configured to receive first indication information sent by a base station, where the first indication information is used to indicate an uplink power control rule of an uplink signal;
- the determining unit 62 is configured to determine the transmission power of the uplink signal according to the uplink power control rule indicated by the first indication information.
- the determining unit 62 is further configured to use the transmission power of the uplink signal to transmit the uplink signal.
- the terminal further includes:
- the sending unit is configured to report the uplink power control rule supported by the terminal and / or the PA power capability of the terminal to the base station before receiving the first indication information.
- the first indication information is indicated by at least one of RRC signaling, MAC-CE signaling, and DCI.
- the first indication information is dedicated signaling for indicating an uplink power control rule of an uplink signal, where the dedicated signaling includes at least a first state and a second state, and the first of the dedicated signaling A state is used to indicate a first uplink power control rule, and a second state of the dedicated signaling is used to indicate a second uplink power control rule, the first uplink power control rule is different from the second uplink power control rule;
- the determination unit is also used to:
- the first uplink power control rule is used to determine the transmit power of the uplink signal.
- the second uplink power control rule is used to determine the transmit power of the uplink signal.
- the dedicated signaling is 1-bit signaling.
- the first indication information is a state of the indication information of the precoding of the uplink signal and the number of transmission streams, and the first indication information is not used to indicate the precoding of the uplink signal;
- the determination unit is also used to:
- the transmission power of the uplink signal is determined according to the uplink power control rule corresponding to the current state of the precoding of the uplink signal and the indication information of the number of transmission streams.
- the first indication information simultaneously indicates the precoding and / or the number of transmission streams of the uplink signal.
- the first indication information is precoding indication information of an uplink signal, wherein the state of the first indication information includes at least a first state and a second state, and the first state is used to indicate the first uplink Power control rule and first precoding, the second state is used to indicate a second uplink power control rule and second precoding, the first uplink power control rule is different from the second uplink power control rule, the The first precoding is the same as or different from the second precoding;
- the determination unit is also used to:
- the precoding indication information indicates the first state, determining the transmission power of the uplink signal according to the first uplink power control rule;
- the transmission power of the uplink signal is determined according to the second uplink power control rule.
- the first indication information is precoding indication information of an uplink signal; wherein, when the precoding indicated by the first indication information meets a first preset condition, the first indication information indicates the first uplink Power control rule; when the precoding indicated by the first indication information satisfies a second preset condition, the first indication information indicates a second uplink power control rule, the first preset condition and the second preset condition Different, the first uplink power control rule is different from the second uplink power control rule;
- the determination unit is also used to:
- the transmit power of the uplink signal is determined according to the second uplink power control rule.
- the first preset condition is: the sum of squares of the modulus values of the pre-encoded matrix elements is 1
- the second preset condition is: the square of the modulus values of the pre-encoded matrix elements The sum is not equal to 1.
- the codebook of the uplink signal includes at least two codewords; the positions of non-zero elements in the at least two codewords are the same, and the relative phase relationship between the non-zero elements is the same, and the at least two The sum of squares of the modular values of the matrix elements of the codewords is different;
- the first indication information is precoding indication information of an uplink signal, wherein, when the precoding indication information indicates different codewords in the at least two codewords, the first indication information indicates different uplink power Control rules
- the determination unit is also used to:
- the first indication information indicates the first codeword of the at least two codewords, determine the transmission power of the uplink signal according to the first uplink power control rule;
- the first indication information indicates the second codeword of the at least two codewords
- determine the transmission power of the uplink signal according to the second uplink power control rule the first uplink power control rule is The second uplink power control rule is different.
- the first indication information also indicates a codebook subset limitation of the uplink signal.
- the first indication information is codebook subset limitation indication information of the uplink signal, and there is a correspondence between the codebook subset limitation information and the uplink power control rule;
- the determination unit is also used to:
- the transmission power of the uplink signal is determined according to the uplink power control rule corresponding to the codebook subset restriction indication information of the uplink signal.
- one codebook subset restriction information corresponds to one uplink power control rule
- one uplink power control rule corresponds to at least one codebook subset restriction information
- the first indication information includes at least a first state and a second state, where the first state and the second state respectively correspond to different uplink power control rules;
- the receiving unit is further configured to: receive codebook subset limitation indication information sent by the base station, where the codebook subset limitation indication information indicates a first codebook subset limitation state;
- the determining unit is further configured to: when the first indication information indicates the first state, determine that the first codebook subset limitation state corresponds to the first codebook subset limitation; and, in the first indication When the information indicates the second state, it is determined that the first codebook subset limitation state corresponds to the second codebook subset limitation; wherein the first codebook subset limitation is different from the second codebook subset limitation.
- the uplink power control rule includes at least a first uplink power control rule and a second uplink power control rule; wherein,
- the first uplink power control rule is a predefined third uplink power control rule
- the second uplink power control rule is a predefined fourth uplink power control rule
- the first uplink power control rule is a predefined uplink power control rule
- the second uplink power control rule is an uplink power control rule reported by the terminal or an uplink power control rule corresponding to the PA capability of the power amplifier reported by the terminal.
- an embodiment of the present disclosure provides a schematic structural diagram of a base station 700, including: a processor 701, a transceiver 702, a memory 703, and a bus interface, where:
- the base station 700 further includes: a computer program stored on the memory 703 and executable on the processor 701.
- the transceiver is used to send first indication information to a terminal, and the first indication information is used to indicate an uplink power control rule of an uplink signal.
- the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 701 and various circuits of the memory represented by the memory 703 are linked together.
- the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article.
- the bus interface provides an interface.
- the transceiver 702 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.
- the processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 when performing operations.
- the transceiver is further configured to receive the uplink power control rule supported by the terminal and / or the PA power capability of the terminal reported by the terminal before sending the first indication information;
- the processor is configured to read a program in the memory and perform the following process: determine the uplink power control rule of the uplink signal according to the uplink power control rule supported by the terminal and / or the PA power capability of the terminal .
- the value of the uplink power control rule of the uplink signal that can be indicated by the first indication information is different.
- the value range of the uplink power control rule of the uplink signal that can be indicated by the first indication information is the uplink power control rule supported by the terminal and / or the PA power capability of the terminal The corresponding full set or subset of uplink power control rules.
- the first indication information is indicated by at least one of RRC signaling, MAC-CE signaling, and DCI.
- the processor is further configured to determine the uplink scheduling information of the uplink signal according to the uplink power control rule of the uplink signal indicated by the first indication information.
- the first indication information is dedicated signaling for indicating an uplink power control rule of an uplink signal
- the dedicated signaling includes at least a first state and a second state
- the first of the dedicated signaling A state is used to indicate a first uplink power control rule
- a second state of the dedicated signaling is used to indicate a second uplink power control rule
- the first uplink power control rule is different from the second uplink power control rule.
- the dedicated signaling is 1-bit signaling.
- the first indication information is a state of the indication information of the precoding of the uplink signal and the number of transmission streams, and the first indication information is not used to indicate the precoding of the uplink signal.
- the first indication information simultaneously indicates the precoding and / or the number of transmission streams of the uplink signal.
- the first indication information is precoding indication information of an uplink signal, wherein the state of the first indication information includes at least a first state and a second state, and the first state is used to indicate the first uplink Power control rule and first precoding, the second state is used to indicate a second uplink power control rule and second precoding, the first uplink power control rule is different from the second uplink power control rule, the The first precoding is the same as or different from the second precoding.
- the first indication information is precoding indication information of an uplink signal; wherein, when the precoding indicated by the first indication information meets a first preset condition, the first indication information indicates the first uplink Power control rule; when the precoding indicated by the first indication information satisfies a second preset condition, the first indication information indicates a second uplink power control rule, the first preset condition and the second preset condition Differently, the first uplink power control rule is different from the second uplink power control rule.
- the first preset condition is: the sum of squares of the modulus values of the pre-encoded matrix elements is 1
- the second preset condition is: the square of the modulus values of the pre-encoded matrix elements The sum is not equal to 1.
- the codebook of the uplink signal includes at least two codewords; the positions of non-zero elements in the at least two codewords are the same, and the relative phase relationship between the non-zero elements is the same, and the at least two The sum of squares of the modular values of the matrix elements of the codewords is different;
- the first indication information is precoding indication information of an uplink signal, wherein, when the precoding indication information indicates different codewords in the at least two codewords, the first indication information indicates different uplink power Control rules.
- the first indication information also indicates a codebook subset limitation of the uplink signal.
- the first indication information is codebook subset limitation indication information of the uplink signal, and there is a correspondence between the codebook subset limitation information and the uplink power control rule.
- one codebook subset restriction information corresponds to one uplink power control rule
- one uplink power control rule corresponds to at least one codebook subset restriction information
- the first indication information includes at least a first state and a second state, where the first state and the second state respectively correspond to different uplink power control rules;
- the transceiver is further configured to send codebook subset limitation indication information to the terminal, where the codebook subset limitation indication information indicates a first codebook subset limitation state; wherein, the first indication information indicates the first In the state, the first codebook subset limit state corresponds to the first codebook subset limit; when the first indication information indicates the second state, the first codebook subset limit state corresponds to the second codebook Subset limitation; the first codebook subset limitation is different from the second codebook subset limitation.
- the uplink power control rule includes at least a first uplink power control rule and a second uplink power control rule; wherein,
- the first uplink power control rule is a predefined third uplink power control rule
- the second uplink power control rule is a predefined fourth uplink power control rule
- the first uplink power control rule is a predefined uplink power control rule
- the second uplink power control rule is an uplink power control rule reported by the terminal or an uplink power control rule corresponding to the PA capability of the power amplifier reported by the terminal.
- the base station 80 includes:
- the sending unit 81 is configured to send first indication information to the terminal, where the first indication information is used to indicate the uplink power control rule of the uplink signal.
- the base station further includes:
- a receiving unit configured to receive the uplink power control rule supported by the terminal and / or the PA power capability of the terminal reported by the terminal before sending the first indication information
- the determining unit is configured to determine the uplink power control rule of the uplink signal according to the uplink power control rule supported by the terminal and / or the power amplifier PA capability of the terminal.
- the value of the uplink power control rule of the uplink signal that can be indicated by the first indication information is different.
- the value range of the uplink power control rule of the uplink signal that can be indicated by the first indication information is the uplink power control rule supported by the terminal and / or the PA power capability of the terminal The corresponding full set or subset of uplink power control rules.
- the first indication information is indicated by at least one of RRC signaling, MAC-CE signaling, and DCI.
- the determining unit is further configured to determine the uplink scheduling information of the uplink signal according to the uplink power control rule of the uplink signal indicated by the first indication information.
- the first indication information is dedicated signaling for indicating an uplink power control rule of an uplink signal
- the dedicated signaling includes at least a first state and a second state
- the first of the dedicated signaling A state is used to indicate a first uplink power control rule
- a second state of the dedicated signaling is used to indicate a second uplink power control rule
- the first uplink power control rule is different from the second uplink power control rule.
- the dedicated signaling is 1-bit signaling.
- the first indication information is a state of the indication information of the precoding of the uplink signal and the number of transmission streams, and the first indication information is not used to indicate the precoding of the uplink signal.
- the first indication information simultaneously indicates the precoding and / or the number of transmission streams of the uplink signal.
- the first indication information is precoding indication information of an uplink signal, wherein the state of the first indication information includes at least a first state and a second state, and the first state is used to indicate the first uplink Power control rule and first precoding, the second state is used to indicate a second uplink power control rule and second precoding, the first uplink power control rule is different from the second uplink power control rule, the The first precoding is the same as or different from the second precoding.
- the first indication information is precoding indication information of an uplink signal; wherein, when the precoding indicated by the first indication information meets a first preset condition, the first indication information indicates the first uplink Power control rule; when the precoding indicated by the first indication information satisfies a second preset condition, the first indication information indicates a second uplink power control rule, the first preset condition and the second preset condition Differently, the first uplink power control rule is different from the second uplink power control rule.
- the first preset condition is: the sum of squares of the modulus values of the pre-encoded matrix elements is 1
- the second preset condition is: the square of the modulus values of the pre-encoded matrix elements The sum is not equal to 1.
- the codebook of the uplink signal includes at least two codewords; the positions of non-zero elements in the at least two codewords are the same, and the relative phase relationship between the non-zero elements is the same, and the at least two The sum of squares of the modular values of the matrix elements of the codewords is different;
- the first indication information is precoding indication information of an uplink signal, wherein, when the precoding indication information indicates different codewords in the at least two codewords, the first indication information indicates different uplink power Control rules.
- the first indication information also indicates a codebook subset limitation of the uplink signal.
- the first indication information is codebook subset limitation indication information of the uplink signal, and there is a correspondence between the codebook subset limitation information and the uplink power control rule.
- one codebook subset restriction information corresponds to one uplink power control rule
- one uplink power control rule corresponds to at least one codebook subset restriction information
- the first indication information includes at least a first state and a second state, where the first state and the second state respectively correspond to different uplink power control rules;
- the transceiver is further configured to send codebook subset limitation indication information to the terminal, where the codebook subset limitation indication information indicates a first codebook subset limitation state; wherein, the first indication information indicates the first In the state, the first codebook subset limit state corresponds to the first codebook subset limit; when the first indication information indicates the second state, the first codebook subset limit state corresponds to the second codebook Subset limitation; the first codebook subset limitation is different from the second codebook subset limitation.
- the uplink power control rule includes at least a first uplink power control rule and a second uplink power control rule; wherein,
- the first uplink power control rule is a predefined third uplink power control rule
- the second uplink power control rule is a predefined fourth uplink power control rule
- the first uplink power control rule is a predefined uplink power control rule
- the second uplink power control rule is an uplink power control rule reported by the terminal or an uplink power control rule corresponding to the PA capability of the power amplifier reported by the terminal.
- the disclosed device and method may be implemented in other ways.
- the device embodiments described above are only schematic.
- the division of the units is only a division of logical functions.
- there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present disclosure.
- each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of the present disclosure essentially or part of the contribution to the existing technology or part of the technical solution may be embodied in the form of a software product, the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
- the foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
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Abstract
本公开提供了一种上行功率控制的方法和设备,该方法包括:接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;以及根据所述第一指示信息指示的上行功率控制规则,确定上行信号的发送功率。
Description
相关申请的交叉引用
本申请主张在2018年11月12日在中国提交的中国专利申请号No.201811341515.2的优先权,其全部内容通过引用包含于此。
本公开实施例涉及通信技术领域,具体涉及一种上行功率控制的方法和设备。
基于码本的上行传输方案是基于固定码本确定上行传输预编码矩阵的多天线传输技术。第五代通信技术新无线接入技术(fifth-generation New Radio Access Technology,5G NR)***中,基于码本的上行传输方案与长期演进(LTE)***中的上行空间复用技术基本原理相似,但是所采用的码本和预编码指示方式有所不同。如图1所示,NR***中,基于码本的上行传输方案的流程包括:
1)用户设备(UE)向基站发送用于基于码本的上行传输方案信道状态信息(Channel State Information)获取的上行探测参考信号(Sounding Reference Signal,SRS)。
2)基站根据UE发送的SRS进行上行信道检测,对UE进行资源调度,并确定出上行传输对应的SRS资源、上行传输的层数和预编码矩阵,进一步根据预编码矩阵和信道信息,确定出上行传输的调制与编码方式(Modulation and Coding Scheme,MCS)等级,然后基站将物理上行共享信道(Physical Uplink Shared Channel,PUSCH)的资源分配和相应的MCS、传输预编码矩阵指示(Transmit Precoding Matrix Indicator,TPMI)、传输层数和对应的SRS资源指示(SRS resource indicator,SRI)通知给UE。
3)UE根据基站指示的MCS对数据进行调制编码,并利用所指示的SRI、TPMI和传输层数确定数据发送时使用的预编码矩阵和传输层数,进而对数据 进行预编码及发送。PUSCH的解调导频与PUSCH的数据采用相同的预编码方式。
4)基站根据解调导频信号估计上行信道,并进行数据检测。
对于UE的多入多出(MIMO)传输,其传输天线与射频的特性与基站有较大差别,码本设计上需要充分考虑天线间的相关特性。当两个天线端口满足相干条件时,UE可以通过预编码利用这两个天线端口同时进行同一层的数据传输,以获得阵列增益。然而,由于天线阵元的互耦效应、馈线差异以及射频通路的放大器相位和增益的变化等因素的影响,实际的UE天线各端口间不可避免地存在功率和相位等方面的差异。受限于成本和设计,不是所有的UE都可以将各天线端口校准至满足相干传输需求的程度。对于不能做到天线相干传输的UE,基站在计算TPMI时UE天线间的相位差和UE接收到TPMI后进行PUSCH传输时天线间的相位差之间可能存在较大的差值,如果TPMI指示了不能相干传输的天线用于相同数据层的传输的话,终端最优的上行传输预编码可能并不是TPMI所指示的预编码,即终端使用基站通过TPMI指示的预编码进行PUSCH的传输并不能获得较好的性能。
NR***定义了UE的三种天线相干传输能力:
1)全相干(full-coherent):所有的天线都可以相干传输;
2)部分相干(partial-coherent):同一相干传输组内的天线可以相干传输,相干传输组之间不能相干传输,每个相干传输组包含2个天线;
3)非相干(non-coherent):没有天线可以相干传输。
UE的天线相干传输能力通过UE支持的码本子集限制指示。在3GPP R15 NR协议TS 38.331 V15.3.0(2018-09)中的UE支持的码本子集限制通过
MIMO-ParametersPerBand中的pusch-TransCoherence指示:
当UE上报的pusch-TransCoherence为nonCoherent,可以理解为UE为 非相干传输能力UE;当UE上报的pusch-TransCoherence为partialNonCoherent,可以理解为UE为部分相干传输能力UE;当UE上报的pusch-TransCoherence为fullCoherent,可以理解为UE为全相干传输能力UE。基站可以基于UE的天线相干传输能力向UE发送码本子集限制信令,限制UE使用其中的一部分码字用于上行传输。在3GPP R15 NR协议TS 38.331 V15.3.0(2018-09)中的基站为UE指示的码本子集限制信令为PUSCH-Config中的codebooksubset,如下:
在LTE和NR***中,采用上行MIMO的PUSCH的多天线功率分配方式为:UE将根据上行功率控制公式计算出的发送功率(例如在NR***中,TS 38.213 V15.3.0(2018-09)版本中为第7.1.1节中的P
PUSCH,b,f,c(i,j,q
d,l))按照实际发送信号的端口数在基站为PUSCH所对应的传输模式配置的总端口数中的占比进行功率缩放,然后将缩放后的功率在实际发送信号的天线端口上均分。举例来说,假设上行传输配置了4个天线端口,基站指示的预编码矩阵为
由于基站为上行传输配置了4个天线端口,该预编码矩阵中只有2个天线端口非零,因此若UE根据PUSCH功率控制公式计算出的发送功率为P,则PUSCH的实际发送功率为P/2,其中第一个天线端口和第三个天线端口的发送功率各为P/4。这种缩放不要求UE的每个天线端口都可以达到最大发送功率,允许UE使用更低成本的射频元件实现多天线功能。
从UE性能的角度来说,当UE位于小区边缘或信道条件较差时,基站通常给UE配置一个低rank的传输,且尽可能地以最大发射功率传输数据。在NR***的码本设计下,对于基于码本的上行传输来说,具有部分天线相干传输能力和非相干传输能力的UE在单rank传输时总是有一部分天线端口没有PUSCH的传输。因此,当前的上行MIMO多天线功率分配机制无法保证在 基于码本的上行传输方案下具有部分天线相干传输能力和非相干传输能力的UE在单rank传输时可以达到最大发射功率,从而降低了UE在小区边缘时的性能,影响小区的覆盖。
可以看出,相关技术中的3GPP NR***对于具有部分相干传输能力的UE和具有非相干传输能力的UE,在配置了多个天线端口的基于码本的上行传输方案下低Rank(或者称为低传输流数)传输时,终端的发送功率不能达到最大发送功率。3GPP R15的UE在进行配置了多个天线端口的非码本上行多天线秩(rank)数目小于配置的天线端口数的传输时无法达到上行最大发射功率。这将降低UE在小区边缘时的性能,影响小区的覆盖。因此,为了解决这一问题,Rel-16 NR***可能会引入新的上行功率控制缩放准则。当前没有关于***中存在多个上行功率控制缩放准则时,UE如何确定上行功率控制缩放准则的方法。
发明内容
本公开实施例的一个目的在于提供一种上行功率控制的方法和设备,可以解决***中存在多个上行功率控制缩放准则时,如何确定上行功率控制缩放准则的问题。
本公开实施例提供了一种上行功率控制的方法,应用于终端,包括:
接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;
根据所述第一指示信息指示的上行功率控制规则,确定上行信号的发送功率。
本公开实施例还提供了一种上行功率控制的方法,应用于基站,包括:
向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
本公开实施例还提供了一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;
所述收发机,用于接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;
所述处理器,用于读取存储器中的程序,执行下列过程:根据所述第一指示信息指示的上行功率控制规则,确定所述上行信号的发送功率
本公开实施例还提供了另一种终端,包括:
接收单元,用于接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;
确定单元,用于根据所述第一指示信息指示的上行功率控制规则,确定所述上行信号的发送功率
本公开实施例还提供了一种基站,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;
所述收发机,用于向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
本公开实施例还提供了另一种基站,包括:
发送单元,用于向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
本公开实施例还提供了一种计算机可读存储介质,,包括指令,当所述指令在计算机运行时,使得计算机执行如上所述的上行功率控制的方法。
本公开实施例提供的上行功率控制的方法和设备,可以在***中存在多个上行功率控制缩放准则时,确定采用何种上行功率控制缩放准则,通过基站与终端进行上行功率控制缩放准则的交互,可以使得基站和终端基于相同的上行功率控制的理解,从而保证上行传输的性能。
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例的描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1表示相关技术基于码本的上行传输方案的流程示意图;
图2表示本公开实施例可应用的一种无线通信***的框图;
图3为本公开实施例提供的上行功率控制的方法的一种流程示意图;
图4为本公开实施例提供的上行功率控制的方法的另一种流程示意图;
图5为本公开实施例提供的终端的一种结构示意图;
图6为本公开实施例提供的终端的另一种结构示意图。
图7为本公开实施例提供的基站的一种结构示意图;
图8为本公开实施例提供的基站的另一种结构示意图。
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的至少其中之一。
本文所描述的技术不限于长期演进型(Long Time Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)以及NR***,并且也可用于各种无线通信***,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他***。术语“***”和“网络”常被可互换地使用。CDMA***可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access,UTRA)等无线电技术。UTRA包括宽带 CDMA(Wideband Code Division Multiple Access,WCDMA)和其他CDMA变体。TDMA***可实现诸如全球移动通信***(Global System for Mobile Communication,GSM)之类的无线电技术。OFDMA***可实现诸如超移动宽带(Ultra Mobile Broadband,UMB)、演进型UTRA(Evolution-UTRA,E-UTRA)、IEEE 1102.11(Wi-Fi)、IEEE 1102.16(WiMAX)、IEEE 1102.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信***(Universal Mobile Telecommunications System,UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。NR、UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project,3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的***和无线电技术,也可用于其他***和无线电技术。然而,以下描述出于示例目的描述了NR***,并且在以下大部分描述中使用NR术语,尽管这些技术也可应用于NR***应用以外的应用。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如,可以按不同于所描述的次序来执行所描述的方法,并且可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
请参见图2,图2示出本公开实施例可应用的一种无线通信***的框图。无线通信***包括终端21和基站22。其中,终端21也可以称作用户终端(User Equipment,UE),终端21可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant,PDA)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备,需要说明的是,在本公开实施例中并不限定终端21的具体类型。基站22可以是5G及以后版本的基站(例如:gNB、5G NR NB等),或者其他通信***中的基站(例如:eNB、WLAN接入点、或其他接入点等),其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本 服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本公开实施例中仅以NR***中的基站为例,但是并不限定基站的具体类型。
基站22可在基站控制器的控制下与终端21通信,在各种示例中,基站控制器可以是核心网或某些基站的一部分。一些基站可通过回程与核心网进行控制信息或用户数据的通信。在一些示例中,这些基站中的一些可以通过回程链路直接或间接地彼此通信,回程链路可以是有线或无线通信链路。无线通信***可支持多个载波(不同频率的波形信号)上的操作。多载波发射机能同时在这多个载波上传送经调制信号。例如,每条通信链路可以是根据各种无线电技术来调制的多载波信号。每个已调信号可在不同的载波上发送并且可携带控制信息(例如,参考信号、控制信道等)、开销信息、数据等。
基站22可经由一个或多个接入点天线与终端21进行无线通信。每个基站可以为各自相应的覆盖区域提供通信覆盖。接入点的覆盖区域可被划分成仅构成该覆盖区域的一部分的扇区。无线通信***可包括不同类型的基站(例如宏基站、微基站、或微微基站)。基站也可利用不同的无线电技术,诸如蜂窝或WLAN无线电接入技术。基站可以与相同或不同的接入网或运营商部署相关联。不同基站的覆盖区域(包括相同或不同类型的基站的覆盖区域、利用相同或不同无线电技术的覆盖区域、或属于相同或不同接入网的覆盖区域)可以交叠。
无线通信***中的通信链路可包括用于承载上行链路(Uplink,UL)传输(例如,从终端21到基站22)的上行链路,或用于承载下行链路(Downlink,DL)传输(例如,从基站22到用户设备21)的终端。UL传输还可被称为反向链路传输,而DL传输还可被称为前向链路传输。下行链路传输可以使用授权频段、非授权频段或这两者来进行。类似地,上行链路传输可以使用有授权频段、非授权频段或这两者来进行。
本公开实施例提供了一种上行功率控制的方法,通过基站与终端进行上行功率控制缩放准则的交互,可以使得基站和终端基于相同的上行功率控制 的理解,从而保证上行传输的性能。请参照图3,本公开实施例提供的上行功率控制的方法,应用于终端侧,包括:
步骤31,接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
这里,可选的,所述上行信号可以为PUSCH、物理上行控制信道(Physical Uplink Control Channel,PUCCH)、SRS、PUSCH的解调参考信号(DeModulation Reference Signal,DMRS)、PUCCH的DMRS和PUCCH的DMRS中的一种或多种,当然,本公开实施例并不局限于以上信号。下文中将主要以PUSCH为例进行说明。需要说明的是,所述上行信号可以为某种类型的上述信号或全部类型的上述信号。例如,所述信号为基于码本传输方式下的PUSCH。
可选地,所述上行功率控制规则为上行信号的功率缩放规则。
例如,对于PUSCH,为对于UE根据上行功率控制公式计算出的发送功率(例如在NR***中,TS 38.213 V15.3.0(2018-09)版本中为第7.1.1节中的P
PUSCH,b,f,c(i,j,q
d,l))进行缩放处理的规则。
例如,一种上行功率控制规则为对于P
PUSCH,b,f,c(i,j,q
d,l)按照PUSCH的预编码矩阵中实际发送信号的天线端口数(即预编码矩阵中非零元素对应的天线端口)在基站为PUSCH所对应的传输模式配置的总天线端口数中的占比进行功率缩放,然后将缩放后的功率在实际发送信号的天线端口上均分(这是3GPP NR***R15或LTE***的规则)。
再例如,一种上行功率控制规则为将P
PUSCH,b,f,c(i,j,q
d,l)在PUSCH的预编码矩阵中实际发送信号的天线端口(即预编码矩阵中非零元素对应的天线端口)上均分。
再例如,一种上行功率控制规则为将P
PUSCH,b,f,c(i,j,q
d,l)根据PUSCH指示的预编码矩阵的缩放系数scaling factor进行功率缩放,各个天线端口的发送功率为所述缩放后的功率的非零元素个数之和倍,例如如果PUSCH的预编码矩阵为
则将P
PUSCH,b,f,c(i,j,q
d,l)缩放至该预编码矩阵的scaling factor
的平方倍,然后预编码矩阵对应的存在非零元素的两个天线端口的发送功 率为该缩放后的功率。
步骤32,根据所述第一指示信息指示的上行功率控制规则,确定上行信号的发送功率。
可选地,终端在需要发送所述上行信号时才根据所述第一指示信息指示的上行功率控制规则,确定所述上行信号的发送功率。
终端在确定了所述上行信号的发送功率后,采用所述发送功率发送所述上行信号。
举例来说,第一指示信息指示基于码本的传输方式下的PUSCH的上行功率控制规则。终端接收到第一指示信息后过了一段时间,基站指示终端发送PUSCH,传输模式为基于码本的上行传输方式。则终端在接收到该发送PUSCH的指示信令之后发送PUSCH之前才利用第一指示信息确定PUSCH的发送功率,并发送PUSCH。
可选地,第一指示信息可以指示上行信号在不同传输模式下时的上行功率控制规则。例如,第一指示信息指示基于码本的上行传输方式下的PUSCH的上行功率控制规则和基于非码本的上行传输方式下的PUSCH的上行功率控制规则,二者可以相同或不同。则当终端要发送基于码本的上行传输方式下的PUSCH时,使用第一指示信息指示的基于码本的上行传输方式下的PUSCH的上行功率控制规则确定PUSCH的发送功率;当终端要发送非码本的上行传输方式下的PUSCH时,使用第一指示信息指示的非码本的上行传输方式下的PUSCH的上行功率控制规则确定PUSCH的发送功率。
可选地,第一指示信息指示多个上行信号的上行功率控制规则。例如,第一指示信息指示基于码本的上行传输方式下的PUSCH的上行功率控制规则和SRS的上行功率控制规则。则当终端要发送基于码本的上行传输方式下的PUSCH时,使用第一指示信息指示的基于码本的上行传输方式下的PUSCH的上行功率控制规则确定PUSCH的发送功率;当终端要发送SRS时,使用第一指示信息指示的SRS的上行功率控制规则确定SRS的发送功率。
这里,在接收到所述第一指示信息后,终端可以确定所述第一指示信息指示的上行功率控制规则,然后根据该上行功率控制规则,确定上行信号的发送功率。终端在确定了上行信号的发送功率后,使用所确定的发送功率发 送上行信号。
通过以上步骤,本公开实施例可以在基站和终端间实现相同的上行功率控制的理解,从而保证上行传输的性能。
可选的,本公开实施例的所述第一指示信息还可以同时指示所述上行信号的预编码和/或传输流数。终端在接收到第一指示信息后,可以同时获得所述上行信号的功率控制规则以及预编码和/或传输流数。
更进一步的,本公开实施例中,在接收到所述第一指示信息之前,所述终端还可以向基站上报所述终端支持的上行功率控制规则和/或所述终端的功率放大器(PA)能力,以便于基站确定所述终端的上行信号的上行功率控制规则。
举例来说,终端上报的其支持的上行功率控制规则为{规则1,规则2},则基站可以通过第一指示信息为终端指示规则1或规则2,但不能为终端指示规则3。再例如,终端上报其PA能力为终端的多个PA中只有一个PA能够达到最大发射功率,则第一指示信息不能为终端指示一个要求终端所有PA都能达到最大发射功率的规则;可选地,该例子中的最大发射功率为UE的功率等级power class对应的最大输出功率。
可选地,如果一个上行功率控制规则使得终端根据上行功率控制规则确定的单天线端口(或单PA)发送时的发送功率可以达到最大功率(例如上行信号为PUSCH,该最大功率为3GPP TS 38.213 V15.3.0(2018-09)版本中为第7.1.1节中的P
CMAX,f,c(i)),则认为该上行功率控制规则为一个要求终端单个PA可以达到最大发射功率的规则。
可选地,如果一个上行功率控制规则使得终端根据上行功率控制规则确定的任意单个天线端口(或单个PA)发送时的发送功率可以达到最大功率(例如上行信号为PUSCH,该最大功率为3GPP TS 38.213 V15.3.0(2018-09)版本中为第7.1.1节中的P
CMAX,f,c(i)),则认为该上行功率控制规则为一个要求终端所有PA都可以达到最大发射功率的规则。
可选地,终端的PA能力通过终端的PA能否达到最大发射功率的方式上报。
可选地,终端的PA能力与上行功率控制规则间存在对应关系。例如,一 种PA能力可对应于一组上行功率控制规则,另一种PA能力对应于另一组上行功率控制规则。
可选地,终端以天线端口可达到的最大功率的方式上报其PA能力。
本公开实施例中,所述第一指示信息可以通过无线资源控制(RRC)信令、媒体接入控制-控制元素(MAC-CE)信令和下行控制信息(DCI)中的至少一种进行指示。下面对本公开实施例的第一指示信息的实现方式进行举例说明。
实现方式1:
所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令包括至少两个状态,其中,所述专属信令的第一状态用于指示第一上行功率控制规则,所述第一信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则。
在上述步骤32中,终端可以在所述专属信令为第一状态时,采用所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述专属信令为第二状态时,采用所述第二上行功率控制规则确定所述上行信号的发送功率。
举例来说,所述上行信号为基于码本的传输方式的PUSCH,所述第一指示消息为一个用来指示所述上行信号的上行功率控制规则的RRC信令。其取值可以为{取值1,取值2,取值3},其中取值1为第一状态,对应的第一上行功率控制规则为对于P
PUSCH,b,f,c(i,j,q
d,l)按照PUSCH的预编码矩阵中实际发送信号的天线端口数(即预编码矩阵中非零元素对应的天线端口)在基站为PUSCH所对应的传输模式配置的总天线端口数中的占比进行功率缩放,然后将缩放后的功率在实际发送信号的天线端口上均分(这是3GPP NR***R15或LTE***的规则);取值2为第二状态,对应的第二上行功率控制规则为上行功率控制规则为将P
PUSCH,b,f,c(i,j,q
d,l)在PUSCH的预编码矩阵中实际发送信号的天线端口(即预编码矩阵中非零元素对应的天线端口)上均分;取值3为第三状态,对应的第三上行功率控制规则为根据上行信号的预编码所包含的相干天线组数确定上行功率。
可选的,所述专属信令可以是1比特的信令。例如,当该信令取值为0是表示第一上行功率控制规则,取值为1时表示第二上行功率控制规则。
实现方式2:
所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码。可选的,所述第一指示信息用于指示上行信号的传输流数。
上述步骤32中,所述终端可以根据所述上行信号的预编码和传输流数的指示信息的当前状态所对应的上行功率控制规则,确定所述上行信号的发送功率。
实现方式3:
所述第一指示信息为所述上行信号的预编码指示信息,例如,在所述上行信号为基于码本传输方式的PUSCH或非基于码本传输方式的PUSCH或type2 configured grant PUSCH时为DCI中的precoder and transmission rank indicator。其中,所述预编码指示信息包括至少两个预编码状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,可以看出,第一预编码状态对应于第一上行功率控制规则,第二预编码状态对应于第二上行功率控制规则。需要说明的是,上述预编码指示信息还可以包含更多的预编码状态,如第三、第四预编码状态,当预编码指示信息对应于第三状态时,对应于第三上行功率控制规则等……,本公开实施例对此不做具体限定。
在上述步骤32中,终端可以在所述预编码指示信息指示第一状态时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述预编码指示信息指示第二状态时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
可选的,所述第一预编码状态和第二预编码状态指示的预编码可以为同一预编码,而所述第一上行功率控制规则不同于所述第二上行功率控制规则。即,预编码指示信息中包含指示了相同预编码(TPMI)的不同状态信息,所述不同状态信息对应于不同的上行功率控制规则。当然,所述第一预编码状态和第二预编码状态指示的预编码可以为不同的预编码,所述第一上行功率 控制规则不同于所述第二上行功率控制规则。
本实现方式的一个示例如下表1所示。表1所示为预编码指示信息(如DCI中的precoder and transmission rank indicator)在不同预编码状态下所对应的属性。表1中,Bit field mapped to index表示预编码状态的索引,codebookSubset表示基站指示的基于码本的传输方式下的PUSCH的码本子集,nonCoherent表示非相干传输,fullyAndPartialAndNonCoherent表示全相干传输。其中,当codebookSubset=nonCoherent时,若precoder and transmission rank indicator对应的Bit field mapped to index为0,1时对应于单流传输时的第一预编码状态;Bit field mapped to index为3,4对应于单流传输时的第二预编码状态。当precoder and transmission rank indicator对应的Bit field mapped to index为0时,表示采用TPMI=0对应的预编码,并根据第一种上行功率控制规则进行上行信号发送功率的确定(例如按照上行power scaling rule缩放之后的发送功率发送);当Bit field mapped to index为3时,表示采用TPMI=0对应的预编码(与Bit field mapped to index为0时的预编码相同),并根据第二种上行功率控制规则进行上行信号发送功率的确定(例如发送功率不进行缩放)。
表1
实现方式4:
所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同;
在上述步骤32中,终端可以在所述第一指示信息指示的预编码满足第一预设条件时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述第一指示信息指示的预编码满足第二预设条件时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
可选的,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩阵元素的模值的平方和不等于1。此处,将预编码的矩阵元素理解为乘以了预编码矩阵前的缩放系数(或称为缩放因子)后的元素。例如,假设预编码矩阵为
则矩阵的元素为
和
由于这两个元素的模值之和为1,则为满足第一预设条件的预编码。再例如,假设预编码矩阵为
则矩阵的元素为1/2和1/2,这两个元素的模值之和为1/4,因此,则为满足第二预设条件的预编码。
实现方式5:
所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,缩放因子(scaling factor) 不同。这里,所述缩放因子(scaling factor)是指码字的矩阵前面的系数。所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息对应于所述至少两个码字中的不同的码字时,所述预编码指示信息指示不同的上行功率控制规则,所述不同的上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则。
在上述步骤32中,终端可以在所述第一指示信息指示所述至少两个码字中的第一码字时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述第一指示信息指示所述至少两个码字中的第二码字时,根据所述第二上行功率控制规则确定所述上行信号的发送功率;所述第一上行功率控制规则与所述第二上行功率控制规则不同。
例如,两个预编码的码字中第一个为
第二个为
其中的第一个码字的非零元素的缩放因子为
第二个码字的非零元素的缩放因子为
当所述预编码指示信息对应于上述第一个码字时,所述预编码指示信息指示第一上行功率控制规则;当所述预编码指示信息对应于上述第二个码字时,所述预编码指示信息指示第二上行功率控制规则,这里第一上行功率控制规则可以不同于第二上行功率控制规则。
需要说明的是,本实现方式同样适用于码本中还包含更多的码字,如第三码字,这些码字间(如所述第三码字、所述第一码字和第二码字)均包含相同位置的非零元素,且非零元素间的相对相位关系相同等,缩放因子(scaling factor)不同。
一个示例的PUSCH 2天线单流码本如表2所示,其中TPMI index=1对应第一码字,TPMI index=7对应于第二码字。当基站指示的TPMI对应为TPMI index=1时,上行信号的总的发送功率为根据上行功率控制计算公式计算出的发送功率的1/2;当基站指示的TPMI对应为TPMI index=7时,上行信号的总的发送功率为根据上行功率控制计算公式计算出的发送功率。
实现方式6:
所述第一指示信息同时指示所述上行信号的码本子集限制。
可选的,所述第一指示信息为所述上行信号的码本子集限制指示信息, 所述码本子集限制信息与上行功率控制规则之间具有对应关系。可选的,所述对应关系中,一个码本子集限制信息对应于一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
在上述步骤32中,终端可以根据所述所述上行信号的码本子集限制指示信息对应的上行功率控制规则,确定所述上行信号的发送功率。
在本实现方式中,所述第一指示信息为上行信号的码本子集限制指示信息(例如,为RRC信令codebooksubset),其中,所述码本子集限制指示信息指示的上行功率控制规则为:与所述码本子集限制指示信息相对应的上行功率控制规则。
例如,所述码本子集限制指示信息的候选取值至少包含第一候选值和第二候选值,不同候选值对应于不同组别的码本子集。当码本子集限制指示信息对应于第一候选值时,对应于第一种上行功率控制规则,当码本子集限制指示信息对应于第二候选值时,对应于第二种上行功率控制规则。需要说明的是,所述码本子集限制指示信息的候选取值还可以包括第三候选值等更多的取值,分别对应于更多的上行功率控制规则。
举例来说,基站可以为终端指示的所述上行信号的码本子集限制信息为{码本子集限制1,码本子集限制2,码本子集限制3,码本子集限制4},当所述码本子集限制指示信息指示了“码本子集限制1”或“码本子集限制2”时对应一种上行功率控制规则;当所述码本子集限制指示信息指示了“码本子集限制3”或“码本子集限制4”时对应了另一种上行功率控制规则。
实现方式7:
所述第一指示信息包括至少两种状态,其中,所述至少两种状态分别对应于不同的上行功率控制规则。所述基站指示的第一码本子集限制指示信息,在所述第一指示信息的不同状态下,可以分别对应于不同的码本子集。
在上述步骤32中,终端可以接收所述基站发送的码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;在所述第一指示信息指示第一状态时,确定所述第一码本子集限制状态对应于第一码本子集限制;以及,在所述第一指示信息指示第二状态时,确定所述第一码本子集限制状态对应第二码本子集限制;其中,所述第一码本子集限制与所述第二码 本子集限制不同。
例如,所述第一指示信息至少包含第一状态和第二状态,第一状态与第二状态对应于不同的上行功率控制规则。当第一指示信息为第一状态时,基站指示的第一codebooksubset对应于第一码本子集;当第一指示信息为第二状态时,基站指示的第一codebooksubset对应于第二码本子集,所述第一码本子集和第二码本子集不同。当然,也可能存在某些码本子集限制信息在第一指示信息的第一状态和第二状态下具有相同的码本子集,本公开实施例对此不做具体限定。
以表2的码本为例,假设第一指示信息的第一状态对应于上行功率控制规则1,第一指示信息的第二状态对应于上行功率控制规则2。假设基站为终端指示的码本子集限制codebooksubset为nonCoherent时,当第一指示信息为第一状态,则第一码本子集限制对应的码本为TPMI index=0、1的码字;当第一指示信息为第二状态,则第一码本子集限制对应的码本为TPMI index=6、7的码字。终端根据第一指示信息指示的上行功率控制规则确定基站为所述上行信号发送的预编码指示信息指示的预编码。假设终端接收到的TPMI的Bit field mapped to index为0,则终端在第一指示信息为第一状态时,认为预编码矩阵为
上行功率控制规则为第一上行功率控制规则;终端在第一指示信息为第二状态时,认为预编码矩阵为
上行功率控制规则为第二上行功率控制规则。
表2
实现方式8:
所述第一指示信息为上行信号的预编码指示信息(例如,为DCI中的precoder and transmission rank indicator),其中,所述预编码指示信息指示的上行功率控制规则为:与所述预编码指示信息指示的码字组相对应的上行功率控制规则。可选的,每个码字组包括至少一个码字,且不同码字组间不存在重叠的码字。
例如,所述上行信号的码本至少包含第一码字组和第二码字组,且不同码字组间不存在重叠的码字。当预编码指示信息对应于第一码字组时,对应于第一种上行功率控制规则;当预编码指示信息对应于第二码字组时,对应于第二种上行功率控制规则。需要说明的是,本实现方式同样适用于码本中还包含第三码字组等等多码字组的情形,例如,当预编码指示信息对应于第三码字组时,可以对应于第三种上行功率控制规则等。
一个示例的PUSCH 2天线单流码本如上表2所示,其中TPMI index=0-5对应第一码字组,TPMI index=6-7对应于第二码字组。当基站指示的TPMI为第一码字组中的码字时,上行信号的总的发送功率为根据上行功率控制计算公式计算出的发送功率的1/2;当基站指示的TPMI第二码字组中的码字时,上行信号的总的发送功率为根据上行功率控制计算公式计算出的发送功率。
实现方式9:
所述第一指示信息包括至少两个候选值,其中,所述至少两个候选值分别对应于不同的上行功率控制规则;所述基站指示的第一码本子集限制指示信息,在所述第一指示信息的不同候选值下,分别对应于不同的码本子集。
该实现方式的一个示例如下:
当第一指示信息为第一候选值,基站指示的codebooksubset为non-coherent时,对应的码本子集为下表3中的TPMI 0-1;当第一指示信息为第二候选值,基站指示的codebooksubset为non-coherent时,对应的码本子集为下表中的TPMI 0-2。
表3
本公开实施例中,所述上行功率控制规则可以至少包括第一上行功率控制规则和第二上行功率控制规则。例如,所述第一上行功率控制规则可以是预定义的第三上行功率控制规则(如3GPP R15定义的上行功率控制规则),所述第二上行功率控制规则可以是预定义的第四上行功率控制规则(如3GPP R16定义的上行功率控制规则)。又例如,所述第一上行功率控制规则可以是 预定义的上行功率控制规则(如3GPP R15定义的上行功率控制规则),所述第二上行功率控制规则可以是终端上报的上行功率控制规则或终端上报的功率放大器(PA)能力对应的上行功率控制规则。
请参照图4,本公开实施例提供的一种上行功率控制的方法,在应用于基站侧时,包括:
步骤41,向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
这里,可选的,所述上行信号可以为PUSCH、PUCCH、SRS、PUSCH的DMRS、PUCCH的DMRS和PUCCH的DMRS中的一种或多种,当然,本公开实施例并不局限于以上信号。需要说明的是,所述上行信号可以为某种类型的上述信号或全部类型的上述信号。例如,所述信号为基于码本传输方式下的PUSCH。
可选地,第一指示信息可以指示上行信号在不同传输模式下时的上行功率控制规则。例如,第一指示信息指示基于码本的上行传输方式下的PUSCH的上行功率控制规则和基于非码本的上行传输方式下的PUSCH的上行功率控制规则,二者可以相同或不同。
可选地,第一指示信息指示多个上行信号的上行功率控制规则。例如,第一指示信息指示基于码本的上行传输方式下的PUSCH的上行功率控制规则和SRS的上行功率控制规则。
可选地,所述上行功率控制规则为上行信号的功率缩放规则。例如,对于PUSCH,为对于UE根据上行功率控制公式计算出的发送功率(例如在NR***中,TS 38.213 V15.3.0(2018-09)版本中为第7.1.1节中的P
PUSCH,b,f,c(i,j,q
d,l))进行缩放处理的规则。例如,一种上行功率控制规则为对于P
PUSCH,b,f,c(i,j,q
d,l)按照PUSCH的预编码矩阵中实际发送信号的天线端口数(即预编码矩阵中非零元素对应的天线端口)在基站为PUSCH所对应的传输模式配置的总天线端口数中的占比进行功率缩放,然后将缩放后的功率在实际发送信号的天线端口上均分(这是3GPP NR***R15或LTE***的规则);再例如,一种上行功率控制规则为将P
PUSCH,b,f,c(i,j,q
d,l)在PUSCH的预编码矩阵中实际发送信号的天线端口(即预编码矩阵中非零元素对应的天线端口)上均分;再例如,一种上行功率控制规则为将P
PUSCH,b,f,c(i,j,q
d,l)根据PUSCH指示的预编码矩阵的缩放系数scaling factor进行功率缩放,各个天线端口的 发送功率为所述缩放后的功率的非零元素个数之和倍,例如如果PUSCH的预编码矩阵为
则将P
PUSCH,b,f,c(i,j,q
d,l)缩放至该预编码矩阵的scaling factor
的平方倍,然后预编码矩阵对应的存在非零元素的第一天线端口的发送功率为该缩放后的功率。
可选的,所述上行功率控制规则可以至少包括第一上行功率控制规则和第二上行功率控制规则。例如,所述第一上行功率控制规则可以是3GPP R15定义的上行功率控制规则,所述第二上行功率控制规则可以是3GPP R16定义的上行功率控制规则。又例如,所述第一上行功率控制规则可以是3GPP R15定义的上行功率控制规则,所述第二上行功率控制规则可以是终端上报的上行功率控制规则或终端上报的功率放大器(PA)能力对应的上行功率控制规则。具体的,所述上行功率控制规则为上行信号的功率缩放规则(power scaling rule)。
通过以上步骤,基站实现了对终端的上行信号的上行功率控制规则的指示,可以在基站和终端间实现相同的上行功率控制的理解,从而保证上行传输的性能。在上述步骤41之前,基站还可以接收终端上报的所述终端支持的上行功率控制规则和/或所述终端的功率放大器(PA)能力;进而根据所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力,确定所述上行信号的上行功率控制规则,从而可以在基站侧为终端确定一个合适的上行功率控制规则(即第一指示信息),例如,在所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力不同时,所确定的上行信号的上行功率控制规则的取值范围不同。
可选的,在本公开实施例中,所述基站所确定的第一指示信息可以指示的上行功率控制规则的取值范围,应符合终端的支持的上行功率控制规则和/或所述终端的功率放大器PA能力,即未超出所述终端的支持的上行功率控制规则和/或所述终端的功率放大器(PA)能力。
举例来说,终端上报的其支持的上行功率控制规则为{规则1,规则2},则基站可以通过第一指示信息为终端指示规则1或规则2,但不能为终端指示规则3。再例如,终端上报其PA能力为终端的多个PA中只有一个PA能 够达到最大发射功率,则第一指示信息不能为终端指示一个要求终端所有PA都能达到最大发射功率的规则;可选地,该例子中的最大发射功率为UE的功率等级power class对应的最大输出功率;可选地,该例子中的最大发射功率为UE的功率等级power class对应的最大输出功率。可选地,如果一个上行功率控制规则使得UE根据上行功率控制规则确定的单天线端口(或单PA)发送时的发送功率可以达到最大功率(例如上行信号为PUSCH,该最大功率为3GPP TS 38.213 V15.3.0(2018-09)版本中为第7.1.1节中的P
CMAX,f,c(i)),则认为该上行功率控制规则为一个要求终端单个PA可以达到最大发射功率的规则。可选地,如果一个上行功率控制规则使得UE根据上行功率控制规则确定的任意单个天线端口(或单个PA)发送时的发送功率可以达到最大功率(例如上行信号为PUSCH,该最大功率为3GPP TS 38.213 V15.3.0(2018-09)版本中为第7.1.1节中的P
CMAX,f,c(i)),则认为该上行功率控制规则为一个要求终端所有PA都可以达到最大发射功率的规则。
可选地,终端的PA能力通过终端的PA能否达到最大发射功率的方式上报。
可选地,终端的PA能力与上行功率控制规则间存在对应关系。例如,一种PA能力可对应于一组上行功率控制规则,另一种PA能力对应于另一组上行功率控制规则。若第一指示信息指示PA能力对应的上行功率控制规则组内的上行功率控制规则,则认为应第一指示信息指示的上行功率控制规则符合终端的支持的上行功率控制规则和/或所述终端的功率放大器PA能力,即未超出所述终端的支持的上行功率控制规则和/或所述终端的功率放大器(PA)能力。
可选地,终端以天线端口可达到的最大功率的方式上报其PA能力。
更进一步的,基站还可以根据所述第一指示信息指示的上行信号的上行功率控制规则,确定所述上行信号的上行调度信息。这里,所述上行调度信息包含但不限于以下信息中的至少一项:预编码指示信息(TPMI),传输层数指示(RI),SRS资源指示(SRI),调制编码方式(MCS)等。
本公开实施例中,所述第一指示信息可以通过无线资源控制(RRC)信令、媒体接入控制-控制元素(MAC-CE)信令和下行控制信息(DCI)中的 至少一种进行指示。下面对本公开实施例的第一指示信息的实现方式进行举例说明。
与终端侧的各个实现方式相对应的,具有以下的实现方式:
实现方式1:
所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令包括至少两个状态,其中,所述专属信令的第一状态用于指示第一上行功率控制规则,所述第一信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则。
举例来说,所述上行信号为基于码本的传输方式的PUSCH,所述第一指示消息为一个用来指示所述上行信号的上行功率控制规则的RRC信令。其取值可以为{取值1,取值2,取值3},其中取值1为第一状态,对应的第一上行功率控制规则为对于P
PUSCH,b,f,c(i,j,q
d,l)按照PUSCH的预编码矩阵中实际发送信号的天线端口数(即预编码矩阵中非零元素对应的天线端口)在基站为PUSCH所对应的传输模式配置的总天线端口数中的占比进行功率缩放,然后将缩放后的功率在实际发送信号的天线端口上均分(这是3GPP NR***R15或LTE***的规则);取值2为第二状态,对应的第二上行功率控制规则为上行功率控制规则为将P
PUSCH,b,f,c(i,j,q
d,l)在PUSCH的预编码矩阵中实际发送信号的天线端口(即预编码矩阵中非零元素对应的天线端口)上均分;取值3为第三状态,对应的第三上行功率控制规则为根据上行信号的预编码所包含的相干天线组数确定上行功率。
可选的,所述专属信令可以是1比特的信令。例如,当该信令取值为0是表示第一上行功率控制规则,取值为1时表示第二上行功率控制规则。
实现方式2:
所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码。可选的,所述第一指示信息用于指示上行信号的传输流数。
实现方式3:
所述第一指示信息为所述上行信号的预编码指示信息,例如,在所述上 行信号为基于码本传输方式的PUSCH或非基于码本传输方式的PUSCH或type2 configured grant PUSCH时为DCI中的precoder and transmission rank indicator。其中,所述预编码指示信息包括至少两个预编码状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,可以看出,第一预编码状态对应于第一上行功率控制规则,第二预编码状态对应于第二上行功率控制规则。需要说明的是,上述预编码指示信息还可以包含更多的预编码状态,如第三、第四预编码状态,当预编码指示信息对应于第三状态时,对应于第三上行功率控制规则等……,本公开实施例对此不做具体限定。
可选的,所述第一预编码状态和第二预编码状态指示的预编码可以为同一预编码,而所述第一上行功率控制规则不同于所述第二上行功率控制规则。即,预编码指示信息中包含指示了相同预编码(TPMI)的不同状态信息,所述不同状态信息对应于不同的上行功率控制规则。当然,所述第一预编码状态和第二预编码状态指示的预编码可以为不同的预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则。
本实现方式的一个示例如上表1所示。表1所示为预编码指示信息(如DCI中的precoder and transmission rank indicator)在不同预编码状态下所对应的属性。表1中,Bit field mapped to index表示预编码状态的索引,codebookSubset表示基站指示的基于码本的传输方式下的PUSCH的码本子集,nonCoherent表示非相干传输,fullyAndPartialAndNonCoherent表示全相干传输。其中,当codebookSubset=nonCoherent时,若precoder and transmission rank indicator对应的Bit field mapped to index为0,1时对应于单流传输时的第一预编码状态;Bit field mapped to index为3,4对应于单流传输时的第二预编码状态。当precoder and transmission rank indicator对应的Bit field mapped to index为0时,表示采用TPMI=0对应的预编码,并根据第一种上行功率控制规则进行上行信号发送功率的确定(例如按照上行power scaling rule缩放之后的发送功率发送);当Bit field mapped to index为3时,表示采用TPMI=0对应的预编码(与Bit field mapped to index为0时的预编码相同),并根据第二种上行功率控制规则进行上行信号发送功率的确定(例如发送功率不进行 缩放)。
实现方式4:
所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同;
可选的,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩阵元素的模值的平方和不等于1。此处,将预编码的矩阵元素理解为乘以了预编码矩阵前的缩放系数(或称为缩放因子)后的元素。例如,假设预编码矩阵为
则矩阵的元素为
和
由于这两个元素的模值之和为1,则为满足第一预设条件的预编码。再例如,假设预编码矩阵为
则矩阵的元素为1/2和1/2,这两个元素的模值之和为1/4,因此,则为满足第二预设条件的预编码。
实现方式5:
所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,缩放因子(scaling factor)不同。这里,在本文中,所述缩放因子(scaling factor)是指码字的的矩阵前面的系数。所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息对应于所述至少两个码字中的不同的码字时,所述预编码指示信息指示不同的上行功率控制规则,所述不同的上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则。
例如,两个预编码的码字中第一个为
第二个为
其中的第一个码字的非零元素的缩放因子为
第二个码字的非零元素的缩放因子为
当所述预编码指示信息对应于上述第一个码字时,所述预编码指示信息指示第一上行功率控制规则;当所述预编码指示信息对应于上述第二个码字时,所述预编码指示信息指示第二上行功率控制规则,这里第一上行功率控 制规则可以不同于第二上行功率控制规则。
需要说明的是,本实现方式同样适用于码本中还包含更多的码字,如第三码字,这些码字间(如所述第三码字、所述第一码字和第二码字)均包含相同位置的非零元素,且非零元素间的相对相位关系相同等,缩放因子(scaling factor)不同。
一个示例的PUSCH 2天线单流码本如表2所示,其中TPMI index=1对应第一码字,TPMI index=7对应于第二码字。当基站指示的TPMI对应为TPMI index=1时,上行信号的总的发送功率为根据上行功率控制计算公式计算出的发送功率的1/2;当基站指示的TPMI对应为TPMI index=7时,上行信号的总的发送功率为根据上行功率控制计算公式计算出的发送功率。
实现方式6:
所述第一指示信息同时指示所述上行信号的码本子集限制。
可选的,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系。可选的,所述对应关系中,一个码本子集限制信息对应于一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
在本实现方式中,所述第一指示信息为上行信号的码本子集限制指示信息(例如,为RRC信令codebooksubset),其中,所述码本子集限制指示信息指示的上行功率控制规则为:与所述码本子集限制指示信息相对应的上行功率控制规则。
例如,所述码本子集限制指示信息的候选取值至少包含第一候选值和第二候选值,不同候选值对应于不同组别的码本子集。当码本子集限制指示信息对应于第一候选值时,对应于第一种上行功率控制规则,当码本子集限制指示信息对应于第二候选值时,对应于第二种上行功率控制规则。需要说明的是,所述码本子集限制指示信息的候选取值还可以包括第三候选值等更多的取值,分别对应于更多的上行功率控制规则。
举例来说,基站可以为终端指示的所述上行信号的码本子集限制信息为{码本子集限制1,码本子集限制2,码本子集限制3,码本子集限制4},当所述码本子集限制指示信息指示了“码本子集限制1”或“码本子集限制2” 时对应一种上行功率控制规则;当所述码本子集限制指示信息指示了“码本子集限制3”或“码本子集限制4”时对应了另一种上行功率控制规则。
实现方式7:
所述第一指示信息包括至少两种状态,其中,所述至少两种状态分别对应于不同的上行功率控制规则。所述基站指示的第一码本子集限制指示信息,在所述第一指示信息的不同状态下,可以分别对应于不同的码本子集。
在上述步骤32中,终端可以接收所述基站发送的码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;在所述第一指示信息指示第一状态时,确定所述第一码本子集限制状态对应于第一码本子集限制;以及,在所述第一指示信息指示第二状态时,确定所述第一码本子集限制状态对应第二码本子集限制;其中,所述第一码本子集限制与所述第二码本子集限制不同。
例如,所述第一指示信息至少包含第一状态和第二状态,第一状态与第二状态对应于不同的上行功率控制规则。当第一指示信息为第一状态时,基站指示的第一codebooksubset对应于第一码本子集;当第一指示信息为第二状态时,基站指示的第一codebooksubset对应于第二码本子集,所述第一码本子集和第二码本子集不同。当然,也可能存在某些码本子集限制信息在第一指示信息的第一状态和第二状态下具有相同的码本子集,本公开实施例对此不做具体限定。
仍以上表2的码本为例,假设第一指示信息的第一状态对应于上行功率控制规则1,第一指示信息的第二状态对应于上行功率控制规则2。假设基站为终端指示的码本子集限制codebooksubset为nonCoherent时,当第一指示信息为第一状态,则第一码本子集限制对应的码本为TPMI index=0、1的码字;当第一指示信息为第二状态,则第一码本子集限制对应的码本为TPMI index=6、7的码字。终端根据第一指示信息指示的上行功率控制规则确定基站为所述上行信号发送的预编码指示信息指示的预编码。假设终端接收到的TPMI的Bit field mapped to index为0,则终端在第一指示信息为第一状态时,认为预编码矩阵为
上行功率控制规则为第一上行功率控制规则;终端在第一指示信息为第二状态时,认为预编码矩阵为
上行功率控制规则为第 二上行功率控制规则。
实现方式8:
所述第一指示信息为上行信号的预编码指示信息(例如,为DCI中的precoder and transmission rank indicator),其中,所述预编码指示信息指示的上行功率控制规则为:与所述预编码指示信息指示的码字组相对应的上行功率控制规则。可选的,每个码字组包括至少一个码字,且不同码字组间不存在重叠的码字。
例如,所述上行信号的码本至少包含第一码字组和第二码字组,且不同码字组间不存在重叠的码字。当预编码指示信息对应于第一码字组时,对应于第一种上行功率控制规则;当预编码指示信息对应于第二码字组时,对应于第二种上行功率控制规则。需要说明的是,本实现方式同样适用于码本中还包含第三码字组等等多码字组的情形,例如,当预编码指示信息对应于第三码字组时,可以对应于第三种上行功率控制规则等。
一个示例的PUSCH 2天线单流码本如上表2所示,其中TPMI index=0-5对应第一码字组,TPMI index=6-7对应于第二码字组。当基站指示的TPMI为第一码字组中的码字时,上行信号的总的发送功率为根据上行功率控制计算公式计算出的发送功率的1/2;当基站指示的TPMI第二码字组中的码字时,上行信号的总的发送功率为根据上行功率控制计算公式计算出的发送功率。
实现方式9:
所述第一指示信息包括至少两个候选值,其中,所述至少两个候选值分别对应于不同的上行功率控制规则;所述基站指示的第一码本子集限制指示信息,在所述第一指示信息的不同候选值下,分别对应于不同的码本子集。
该实现方式的一个示例如下:
当第一指示信息为第一候选值,基站指示的codebooksubset为non-coherent时,对应的码本子集为表3中的TPMI 0-1;当第一指示信息为第二候选值,基站指示的codebooksubset为non-coherent时,对应的码本子集为表3中的TPMI 0-2。
基于以上方法,本公开实施例还提供了实施上述方法的设备。
请参照图5,本公开实施例提供的终端的一种结构示意图,该终端50包 括:处理器501、收发机502、存储器503、用户接口504和总线接口,其中:
在本公开实施例中,终端500还包括:存储在存储器上503并可在处理器501上运行的计算机程序。
所述收发机502,用于接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;
所述处理器501,用于读取存储器中的程序,执行下列过程:根据所述第一指示信息指示的上行功率控制规则,确定上行信号的发送功率。可选地,所述处理器501还用于利用所述上行信号的发送功率发送所述上行信号。
在图5中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器501代表的一个或多个处理器和存储器503代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机502可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口504还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器501负责管理总线架构和通常的处理,存储器503可以存储处理器501在执行操作时所使用的数据。
可选的,所述收发机,还用于在接收所述第一指示信息之前,向基站上报所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力。
可选的,所述第一指示信息通过RRC信令、MAC-CE信令和DCI中的至少一种进行指示。
可选的,所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令至少包括第一状态和第二状态,所述专属信令的第一状态用于指示第一上行功率控制规则,所述专属信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则;
所述处理器,还用于:
在所述专属信令为第一状态时,采用所述第一上行功率控制规则确定所 述上行信号的发送功率;以及,
在所述专属信令为第二状态时,采用所述第二上行功率控制规则确定所述上行信号的发送功率。
可选的,所述专属信令为1比特的信令。
可选的,所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码;
所述处理器,还用于:
根据所述上行信号的预编码和传输流数的指示信息的当前状态所对应的上行功率控制规则,确定所述上行信号的发送功率。
可选的,所述第一指示信息同时指示所述上行信号的预编码和/或传输流数。
可选的,所述第一指示信息为上行信号的预编码指示信息,其中,所述第一指示信息的状态包括至少第一状态和第二状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则,所述第一预编码与第二预编码相同或不同;
所述处理器,还用于:
在所述预编码指示信息指示第一状态时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,
在所述预编码指示信息指示第二状态时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
可选的,所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同;
所述处理器,还用于:
在所述第一指示信息指示的预编码满足第一预设条件时,根据所述第一 上行功率控制规则确定所述上行信号的发送功率;以及,
在所述第一指示信息指示的预编码满足第二预设条件时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
可选的,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩阵元素的模值的平方和不等于1。
可选的,所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,且所述至少两个码字的矩阵元素的模值的平方和不同;
所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息指示所述至少两个码字中的不同码字时,所述第一指示信息指示不同的上行功率控制规则;
所述处理器,还用于:
在所述第一指示信息指示所述至少两个码字中的第一码字时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,
在所述第一指示信息指示所述至少两个码字中的第二码字时,根据所述第二上行功率控制规则确定所述上行信号的发送功率;所述第一上行功率控制规则与所述第二上行功率控制规则不同。
可选的,所述第一指示信息同时指示所述上行信号的码本子集限制。
可选的,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系;
所述处理器,还用于:
根据所述所述上行信号的码本子集限制指示信息对应的上行功率控制规则,确定所述上行信号的发送功率。
可选的,所述对应关系中,一个码本子集限制信息对应于一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
可选的,所述第一指示信息包括至少第一状态和第二状态,其中,所述第一状态和第二状态分别对应于不同的上行功率控制规则;
所述收发机,还用于接收所述基站发送的码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;
所述处理器,还用于:在所述第一指示信息指示第一状态时,确定所述第一码本子集限制状态对应于第一码本子集限制;以及,在所述第一指示信息指示第二状态时,确定所述第一码本子集限制状态对应第二码本子集限制;其中,所述第一码本子集限制与所述第二码本子集限制不同。
可选的,所述上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则;其中,
所述第一上行功率控制规则为预定义的第三上行功率控制规则,所述第二上行功率控制规则为预定义的第四上行功率控制规则;或者,
所述第一上行功率控制规则为预定义的上行功率控制规则,所述第二上行功率控制规则为终端上报的上行功率控制规则或终端上报的功率放大器PA能力对应的上行功率控制规则。
关于第一指示信息更为详细的实现方式,可以参考方法实施例的相应部分,为节约篇幅此处不再赘述。
请参照图6,本公开实施例提供了另一种终端60,包括:
接收单元61,用于接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;
确定单元62,用于根据所述第一指示信息指示的上行功率控制规则,确定上行信号的发送功率。可选地,所述确定单元62还用于利用所述上行信号的发送功率进行所述上行信号的发送。
可选的,所述终端还包括:
发送单元,用于在接收所述第一指示信息之前,向基站上报所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力。
可选的,所述第一指示信息通过RRC信令、MAC-CE信令和DCI中的至少一种进行指示。
可选的,所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令至少包括第一状态和第二状态,所述专属信令的第一状态用于指示第一上行功率控制规则,所述专属信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则;
所述确定单元还用于:
在所述专属信令为第一状态时,采用所述第一上行功率控制规则确定所述上行信号的发送功率;以及,
在所述专属信令为第二状态时,采用所述第二上行功率控制规则确定所述上行信号的发送功率。
可选的,所述专属信令为1比特的信令。
可选的,所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码;
所述确定单元还用于:
根据所述上行信号的预编码和传输流数的指示信息的当前状态所对应的上行功率控制规则,确定所述上行信号的发送功率。
可选的,所述第一指示信息同时指示所述上行信号的预编码和/或传输流数。
可选的,所述第一指示信息为上行信号的预编码指示信息,其中,所述第一指示信息的状态包括至少第一状态和第二状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则,所述第一预编码与第二预编码相同或不同;
所述确定单元还用于:
在所述预编码指示信息指示第一状态时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,
在所述预编码指示信息指示第二状态时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
可选的,所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同;
所述确定单元还用于:
在所述第一指示信息指示的预编码满足第一预设条件时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,
在所述第一指示信息指示的预编码满足第二预设条件时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
可选的,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩阵元素的模值的平方和不等于1。
可选的,所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,且所述至少两个码字的矩阵元素的模值的平方和不同;
所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息指示所述至少两个码字中的不同码字时,所述第一指示信息指示不同的上行功率控制规则;
所述确定单元还用于:
在所述第一指示信息指示所述至少两个码字中的第一码字时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,
在所述第一指示信息指示所述至少两个码字中的第二码字时,根据所述第二上行功率控制规则确定所述上行信号的发送功率;所述第一上行功率控制规则与所述第二上行功率控制规则不同。
可选的,所述第一指示信息同时指示所述上行信号的码本子集限制。
可选的,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系;
所述确定单元还用于:
根据所述所述上行信号的码本子集限制指示信息对应的上行功率控制规则,确定所述上行信号的发送功率。
可选的,所述对应关系中,一个码本子集限制信息对应于一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
可选的,所述第一指示信息包括至少第一状态和第二状态,其中,所述第一状态和第二状态分别对应于不同的上行功率控制规则;
所述接收单元还用于:接收所述基站发送的码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;
所述确定单元还用于:在所述第一指示信息指示第一状态时,确定所述第一码本子集限制状态对应于第一码本子集限制;以及,在所述第一指示信息指示第二状态时,确定所述第一码本子集限制状态对应第二码本子集限制;其中,所述第一码本子集限制与所述第二码本子集限制不同。
可选的,所述上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则;其中,
所述第一上行功率控制规则为预定义的第三上行功率控制规则,所述第二上行功率控制规则为预定义的第四上行功率控制规则;或者,
所述第一上行功率控制规则为预定义的上行功率控制规则,所述第二上行功率控制规则为终端上报的上行功率控制规则或终端上报的功率放大器PA能力对应的上行功率控制规则。
请参考图7,本公开实施例提供了基站700的一结构示意图,包括:处理器701、收发机702、存储器703和总线接口,其中:
在本公开实施例中,基站700还包括:存储在存储器上703并可在处理器701上运行的计算机程序。
所述收发机,用于向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
在图7中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器701代表的一个或多个处理器和存储器703代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机702可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
处理器701负责管理总线架构和通常的处理,存储器703可以存储处理器701在执行操作时所使用的数据。
可选的,所述收发机,还用于在发送所述第一指示信息之前,接收终端上报的所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能 力;
所述处理器,用于读取存储器中的程序,执行下列过程:根据所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力,确定所述上行信号的上行功率控制规则。
可选的,在所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力不同时,所述第一指示信息所能够指示的所述上行信号的上行功率控制规则的取值范围不同。
可选的,所述第一指示信息所能够指示的所述上行信号的上行功率控制规则的取值范围,为所述终端的支持的上行功率控制规则和/或所述终端的功率放大器PA能力所对应的上行功率控制规则的全集或子集。
可选的,所述第一指示信息通过RRC信令、MAC-CE信令和DCI中的至少一种进行指示。
可选的,所述处理器,还用于根据所述第一指示信息指示的上行信号的上行功率控制规则,确定所述上行信号的上行调度信息。
可选的,所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令至少包括第一状态和第二状态,所述专属信令的第一状态用于指示第一上行功率控制规则,所述专属信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则。
可选的,所述专属信令为1比特的信令。
可选的,所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码。
可选的,所述第一指示信息同时指示所述上行信号的预编码和/或传输流数。
可选的,所述第一指示信息为上行信号的预编码指示信息,其中,所述第一指示信息的状态包括至少第一状态和第二状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则,所述第一预编码与第二预编码相同或不同。
可选的,所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同。
可选的,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩阵元素的模值的平方和不等于1。
可选的,所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,且所述至少两个码字的矩阵元素的模值的平方和不同;
所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息指示所述至少两个码字中的不同码字时,所述第一指示信息指示不同的上行功率控制规则。
可选的,所述第一指示信息同时指示所述上行信号的码本子集限制。
可选的,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系。
可选的,所述对应关系中,一个码本子集限制信息对应一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
可选的,所述第一指示信息包括至少第一状态和第二状态,其中,所述第一状态和第二状态分别对应于不同的上行功率控制规则;
所述收发机,还用于向终端发送码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;其中,在所述第一指示信息指示第一状态时,所述第一码本子集限制状态对应第一码本子集限制;在所述第一指示信息指示第二状态时,所述第一码本子集限制状态对应第二码本子集限制;所述第一码本子集限制与所述第二码本子集限制不同。
可选的,所述上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则;其中,
所述第一上行功率控制规则为预定义的第三上行功率控制规则,所述第 二上行功率控制规则为预定义的第四上行功率控制规则;或者,
所述第一上行功率控制规则为预定义的上行功率控制规则,所述第二上行功率控制规则为终端上报的上行功率控制规则或终端上报的功率放大器PA能力对应的上行功率控制规则。
关于第一指示信息更为详细的实现方式,可以参考方法实施例的相应部分,为节约篇幅此处不再赘述。
请参照图8,本公开实施例提供了基站80的另一种结构,如图8所示,该基站80包括:
发送单元81,用于向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
可选的,所述基站还包括:
接收单元,用于在发送所述第一指示信息之前,接收终端上报的所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力;
确定单元,用于根据所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力,确定所述上行信号的上行功率控制规则。
可选的,在所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力不同时,所述第一指示信息所能够指示的所述上行信号的上行功率控制规则的取值范围不同。
可选的,所述第一指示信息所能够指示的所述上行信号的上行功率控制规则的取值范围,为所述终端的支持的上行功率控制规则和/或所述终端的功率放大器PA能力所对应的上行功率控制规则的全集或子集。
可选的,所述第一指示信息通过RRC信令、MAC-CE信令和DCI中的至少一种进行指示。
可选的,所述确定单元,还用于根据所述第一指示信息指示的上行信号的上行功率控制规则,确定所述上行信号的上行调度信息。
可选的,所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令至少包括第一状态和第二状态,所述专属信令的第一状态用于指示第一上行功率控制规则,所述专属信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二 上行功率控制规则。
可选的,所述专属信令为1比特的信令。
可选的,所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码。
可选的,所述第一指示信息同时指示所述上行信号的预编码和/或传输流数。
可选的,所述第一指示信息为上行信号的预编码指示信息,其中,所述第一指示信息的状态包括至少第一状态和第二状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则,所述第一预编码与第二预编码相同或不同。
可选的,所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同。
可选的,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩阵元素的模值的平方和不等于1。
可选的,所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,且所述至少两个码字的矩阵元素的模值的平方和不同;
所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息指示所述至少两个码字中的不同码字时,所述第一指示信息指示不同的上行功率控制规则。
可选的,所述第一指示信息同时指示所述上行信号的码本子集限制。
可选的,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系。
可选的,所述对应关系中,一个码本子集限制信息对应一个上行功率控 制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
可选的,所述第一指示信息包括至少第一状态和第二状态,其中,所述第一状态和第二状态分别对应于不同的上行功率控制规则;
所述收发机,还用于向终端发送码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;其中,在所述第一指示信息指示第一状态时,所述第一码本子集限制状态对应第一码本子集限制;在所述第一指示信息指示第二状态时,所述第一码本子集限制状态对应第二码本子集限制;所述第一码本子集限制与所述第二码本子集限制不同。
可选的,所述上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则;其中,
所述第一上行功率控制规则为预定义的第三上行功率控制规则,所述第二上行功率控制规则为预定义的第四上行功率控制规则;或者,
所述第一上行功率控制规则为预定义的上行功率控制规则,所述第二上行功率控制规则为终端上报的上行功率控制规则或终端上报的功率放大器PA能力对应的上行功率控制规则。
另外,针对图5~8所示的设备,关于第一指示信息的实现方式可以参考上文方法中的相关说明,为节约篇幅不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一 些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本公开实施例方案的目的。
另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以权利要求的保护范围为准。
Claims (73)
- 一种上行功率控制的方法,应用于终端,所述方法包括:接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;根据所述第一指示信息指示的上行功率控制规则,确定上行信号的发送功率。
- 根据权利要求1所述的方法,其中,在接收所述第一指示信息之前,所述方法还包括:向基站上报所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力。
- 根据权利要求1所述的方法,其中,所述第一指示信息通过RRC信令、MAC-CE信令和DCI中的至少一种进行指示。
- 根据权利要求1至3任一项所述的方法,其中,所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令至少包括第一状态和第二状态,所述专属信令的第一状态用于指示第一上行功率控制规则,所述专属信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则;所述确定上行信号的发送功率的步骤,包括:在所述专属信令为第一状态时,采用所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述专属信令为第二状态时,采用所述第二上行功率控制规则确定所述上行信号的发送功率。
- 根据权利要求4所述的方法,其中,所述专属信令为1比特的信令。
- 根据权利要求1至3任一项所述的方法,其中,所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码;所述确定上行信号的发送功率的步骤,包括:根据所述上行信号的预编码和传输流数的指示信息的当前状态所对应的 上行功率控制规则,确定所述上行信号的发送功率。
- 根据权利要求1至3任一项所述的方法,其中,所述第一指示信息同时指示所述上行信号的预编码和/或传输流数。
- 根据权利要求1至3任一项所述的方法,其中,所述第一指示信息为上行信号的预编码指示信息,其中,所述第一指示信息的状态包括至少第一状态和第二状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则,所述第一预编码与第二预编码相同或不同;所述确定上行信号的发送功率的步骤,包括:在所述预编码指示信息指示第一状态时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述预编码指示信息指示第二状态时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
- 根据权利要求1至3任一项所述的方法,其中,所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同;所述确定上行信号的发送功率的步骤,包括:在所述第一指示信息指示的预编码满足第一预设条件时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述第一指示信息指示的预编码满足第二预设条件时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
- 根据权利要求9所述的方法,其中,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩阵元素的模值的平方和不等于1。
- 根据权利要求1至3任一项所述的方法,其中,所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,且所述至少两个码字的矩阵元素的模值的平方和不同;所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息指示所述至少两个码字中的不同码字时,所述第一指示信息指示不同的上行功率控制规则;所述确定上行信号的发送功率的步骤,包括:在所述第一指示信息指示所述至少两个码字中的第一码字时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述第一指示信息指示所述至少两个码字中的第二码字时,根据所述第二上行功率控制规则确定所述上行信号的发送功率;所述第一上行功率控制规则与所述第二上行功率控制规则不同。
- 根据权利要求1至3任一项所述的方法,其中,所述第一指示信息同时指示所述上行信号的码本子集限制。
- 根据权利要求12所述的方法,其中,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系;所述确定上行信号的发送功率的步骤,包括:根据所述所述上行信号的码本子集限制指示信息对应的上行功率控制规则,确定所述上行信号的发送功率。
- 根据权利要求13所述的方法,其中,所述对应关系中,一个码本子集限制信息对应于一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
- 根据权利要求1至3任一项所述的方法,其中,所述第一指示信息包括至少第一状态和第二状态,其中,所述第一状态和第二状态分别对应于不同的上行功率控制规则;所述方法还包括:接收所述基站发送的码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;在所述第一指示信息指示第一状态时,确定所述第一码本子集限制状态对应于第一码本子集限制;以及,在所述第一指示信息指示第二状态时,确定所述第一码本子集限制状态对应第二码本子集限制;其中,所述第一码本子集限制与所述第二码本子集限制不同。
- 根据权利要求1至3任一项所述的方法,其中,所述上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则;其中,所述第一上行功率控制规则为预定义的第三上行功率控制规则,所述第二上行功率控制规则为预定义的第四上行功率控制规则;或者,所述第一上行功率控制规则为预定义的上行功率控制规则,所述第二上行功率控制规则为终端上报的上行功率控制规则或终端上报的功率放大器PA能力对应的上行功率控制规则。
- 一种上行功率控制的方法,应用于基站,所述方法包括:向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
- 根据权利要求17所述的方法,其中,在发送所述第一指示信息之前,所述方法还包括:接收终端上报的所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力;根据所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力,确定所述上行信号的上行功率控制规则。
- 根据权利要求18所述的方法,其中,在所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力不同时,所述第一指示信息所能够指示的所述上行信号的上行功率控制规则的取值范围不同。
- 根据权利要求19所述的方法,其中,所述第一指示信息所能够指示的所述上行信号的上行功率控制规则的取值范围,为所述终端的支持的上行功率控制规则和/或所述终端的功率放大器PA能力所对应的上行功率控制规则的全集或子集。
- 根据权利要求17所述的方法,其中,所述第一指示信息通过RRC信 令、MAC-CE信令和DCI中的至少一种进行指示。
- 根据权利要求17至21任一项所述的方法,还包括:根据所述第一指示信息指示的上行信号的上行功率控制规则,确定所述上行信号的上行调度信息。
- 根据权利要求17至21任一项所述的方法,其中,所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令至少包括第一状态和第二状态,所述专属信令的第一状态用于指示第一上行功率控制规则,所述专属信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则。
- 根据权利要求23所述的方法,其中,所述专属信令为1比特的信令。
- 根据权利要求17至21任一项所述的方法,其中,所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码。
- 根据权利要求17至21任一项所述的方法,其中,所述第一指示信息同时指示所述上行信号的预编码和/或传输流数。
- 根据权利要求17至21任一项所述的方法,其中,所述第一指示信息为上行信号的预编码指示信息,其中,所述第一指示信息的状态包括至少第一状态和第二状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则,所述第一预编码与第二预编码相同或不同。
- 根据权利要求17至21任一项所述的方法,其中,所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同。
- 根据权利要求28所述的方法,其中,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩 阵元素的模值的平方和不等于1。
- 根据权利要求17至21任一项所述的方法,其中,所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,且所述至少两个码字的矩阵元素的模值的平方和不同;所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息指示所述至少两个码字中的不同码字时,所述第一指示信息指示不同的上行功率控制规则。
- 根据权利要求17至21任一项所述的方法,其中,所述第一指示信息同时指示所述上行信号的码本子集限制。
- 根据权利要求31所述的方法,其中,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系。
- 根据权利要求32所述的方法,其中,所述对应关系中,一个码本子集限制信息对应一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
- 根据权利要求17至21任一项所述的方法,其中,所述第一指示信息包括至少第一状态和第二状态,其中,所述第一状态和第二状态分别对应于不同的上行功率控制规则;所述方法还包括:向终端发送码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;其中,在所述第一指示信息指示第一状态时,所述第一码本子集限制状态对应第一码本子集限制;在所述第一指示信息指示第二状态时,所述第一码本子集限制状态对应第二码本子集限制;所述第一码本子集限制与所述第二码本子集限制不同。
- 据权利要求17至21任一项所述的方法,其中,所述上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则;其中,所述第一上行功率控制规则为预定义的第三上行功率控制规则,所述第二 上行功率控制规则为预定义的第四上行功率控制规则;或者,所述第一上行功率控制规则为预定义的上行功率控制规则,所述第二上行功率控制规则为终端上报的上行功率控制规则或终端上报的功率放大器PA能力对应的上行功率控制规则。
- 一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;所述收发机,用于接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;所述处理器,用于读取存储器中的程序,执行下列过程:根据所述第一指示信息指示的上行功率控制规则,确定上行信号的发送功率。
- 根据权利要求36所述的终端,其中,所述收发机,还用于在接收所述第一指示信息之前,向基站上报所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力。
- 根据权利要求36所述的终端,其中,所述第一指示信息通过RRC信令、MAC-CE信令和DCI中的至少一种进行指示。
- 根据权利要求36至38任一项所述的终端,其中,所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令至少包括第一状态和第二状态,所述专属信令的第一状态用于指示第一上行功率控制规则,所述专属信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则;所述处理器,还用于:在所述专属信令为第一状态时,采用所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述专属信令为第二状态时,采用所述第二上行功率控制规则确定所述上行信号的发送功率。
- 根据权利要求39所述的终端,其中,所述专属信令为1比特的信令。
- 根据权利要求36至38任一项所述的终端,其中,所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码;所述处理器,还用于:根据所述上行信号的预编码和传输流数的指示信息的当前状态所对应的上行功率控制规则,确定所述上行信号的发送功率。
- 根据权利要求36至38任一项所述的终端,其中,所述第一指示信息同时指示所述上行信号的预编码和/或传输流数。
- 根据权利要求36至38任一项所述的终端,其中,所述第一指示信息为上行信号的预编码指示信息,其中,所述第一指示信息的状态包括至少第一状态和第二状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则,所述第一预编码与第二预编码相同或不同;所述处理器,还用于:在所述预编码指示信息指示第一状态时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述预编码指示信息指示第二状态时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
- 根据权利要求36至38任一项所述的终端,其中,所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同;所述处理器,还用于:在所述第一指示信息指示的预编码满足第一预设条件时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述第一指示信息指示的预编码满足第二预设条件时,根据所述第二上行功率控制规则确定所述上行信号的发送功率。
- 根据权利要求44所述的终端,其中,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩 阵元素的模值的平方和不等于1。
- 根据权利要求36至38任一项所述的终端,其中,所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,且所述至少两个码字的矩阵元素的模值的平方和不同;所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息指示所述至少两个码字中的不同码字时,所述第一指示信息指示不同的上行功率控制规则;所述处理器,还用于:在所述第一指示信息指示所述至少两个码字中的第一码字时,根据所述第一上行功率控制规则确定所述上行信号的发送功率;以及,在所述第一指示信息指示所述至少两个码字中的第二码字时,根据所述第二上行功率控制规则确定所述上行信号的发送功率;所述第一上行功率控制规则与所述第二上行功率控制规则不同。
- 根据权利要求36至38任一项所述的终端,其中,所述第一指示信息同时指示所述上行信号的码本子集限制。
- 根据权利要求47所述的终端,其中,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系;所述处理器,还用于:根据所述所述上行信号的码本子集限制指示信息对应的上行功率控制规则,确定所述上行信号的发送功率。
- 根据权利要求48所述的终端,其中,所述对应关系中,一个码本子集限制信息对应于一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
- 根据权利要求36至38任一项所述的终端,还包括:所述第一指示信息包括至少第一状态和第二状态,其中,所述第一状态和第二状态分别对应于不同的上行功率控制规则;所述收发机,还用于接收所述基站发送的码本子集限制指示信息,所述码 本子集限制指示信息指示第一码本子集限制状态;所述处理器,还用于:在所述第一指示信息指示第一状态时,确定所述第一码本子集限制状态对应于第一码本子集限制;以及,在所述第一指示信息指示第二状态时,确定所述第一码本子集限制状态对应第二码本子集限制;其中,所述第一码本子集限制与所述第二码本子集限制不同。
- 根据权利要求36至38任一项所述的终端,其中,所述上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则;其中,所述第一上行功率控制规则为预定义的第三上行功率控制规则,所述第二上行功率控制规则为预定义的第四上行功率控制规则;或者,所述第一上行功率控制规则为预定义的上行功率控制规则,所述第二上行功率控制规则为终端上报的上行功率控制规则或终端上报的功率放大器PA能力对应的上行功率控制规则。
- 一种终端,包括:接收单元,用于接收基站发送的第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则;确定单元,用于根据所述第一指示信息指示的上行功率控制规则,确定上行信号的发送功率。
- 一种基站,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;所述收发机,用于向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
- 根据权利要求53所述的基站,其中,所述收发机,还用于在发送所述第一指示信息之前,接收终端上报的所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力;所述处理器,用于读取存储器中的程序,执行下列过程:根据所述终端支持的上行功率控制规则和/或所述终端的功率放大器PA能力,确定所述上行信号的上行功率控制规则。
- 根据权利要求54所述的基站,其中,在所述终端支持的上行功率控 制规则和/或所述终端的功率放大器PA能力不同时,所述第一指示信息所能够指示的所述上行信号的上行功率控制规则的取值范围不同。
- 根据权利要求55所述的基站,其中,所述第一指示信息所能够指示的所述上行信号的上行功率控制规则的取值范围,为所述终端的支持的上行功率控制规则和/或所述终端的功率放大器PA能力所对应的上行功率控制规则的全集或子集。
- 根据权利要求53所述的基站,其中,所述第一指示信息通过RRC信令、MAC-CE信令和DCI中的至少一种进行指示。
- 根据权利要求53至57任一项所述的基站,其中,所述处理器,还用于根据所述第一指示信息指示的上行信号的上行功率控制规则,确定所述上行信号的上行调度信息。
- 根据权利要求53至57任一项所述的基站,其中,所述第一指示信息为用于指示上行信号的上行功率控制规则的专属信令,其中,所述专属信令至少包括第一状态和第二状态,所述专属信令的第一状态用于指示第一上行功率控制规则,所述专属信令的第二状态用于指示第二上行功率控制规则,所述第一上行功率控制规则不同于所述第二上行功率控制规则。
- 根据权利要求59所述的基站,其中,所述专属信令为1比特的信令。
- 根据权利要求53至57任一项所述的基站,其中,所述第一指示信息为上行信号的预编码和传输流数的指示信息的一个状态,且所述第一指示信息不用于指示所述上行信号的预编码。
- 根据权利要求53至57任一项所述的基站,其中,所述第一指示信息同时指示所述上行信号的预编码和/或传输流数。
- 根据权利要求53至57任一项所述的基站,其中,所述第一指示信息为上行信号的预编码指示信息,其中,所述第一指示信息的状态包括至少第一状态和第二状态,所述第一状态用于指示第一上行功率控制规则和第一预编码,所述第二状态用于指示第二上行功率控制规则和第二预编码,所述第一上行功率控制规则不同于所述第二上行功率控制规则,所述第一预编码与第二预编码相同或不同。
- 根据权利要求53至57任一项所述的基站,其中,所述第一指示信息为上行信号的预编码指示信息;其中,在所述第一指示信息指示的预编码满足第一预设条件时,所述第一指示信息指示第一上行功率控制规则;在所述第一指示信息指示的预编码满足第二预设条件时,所述第一指示信息指示第二上行功率控制规则,所述第一预设条件和第二预设条件不同,所述第一上行功率控制规则与第二上行功率控制规则不同。
- 根据权利要求64所述的基站,其中,所述第一预设条件为:所述预编码的矩阵元素的模值的平方和为1,所述第二预设条件为:所述预编码的矩阵元素的模值的平方和不等于1。
- 根据权利要求53至57任一项所述的基站,其中,所述上行信号的码本包括至少两个码字;所述至少两个码字中的非零元素的位置相同,且非零元素间的相对相位关系相同,且所述至少两个码字的矩阵元素的模值的平方和不同;所述第一指示信息为上行信号的预编码指示信息,其中,当所述预编码指示信息指示所述至少两个码字中的不同码字时,所述第一指示信息指示不同的上行功率控制规则。
- 根据权利要求53至57任一项所述的基站,其中,所述第一指示信息同时指示所述上行信号的码本子集限制。
- 根据权利要求67所述的基站,其中,所述第一指示信息为所述上行信号的码本子集限制指示信息,所述码本子集限制信息与上行功率控制规则之间具有对应关系。
- 根据权利要求68所述的基站,其中,所述对应关系中,一个码本子集限制信息对应一个上行功率控制规则,一个上行功率控制规则对应于至少一个码本子集限制信息。
- 根据权利要求53至57任一项所述的基站,其中,所述第一指示信息包括至少第一状态和第二状态,其中,所述第一状态和第二状态分别对应于不同的上行功率控制规则;所述收发机,还用于向终端发送码本子集限制指示信息,所述码本子集限制指示信息指示第一码本子集限制状态;其中,在所述第一指示信息指示第一状态时,所述第一码本子集限制状态对应第一码本子集限制;在所述第一指示 信息指示第二状态时,所述第一码本子集限制状态对应第二码本子集限制;所述第一码本子集限制与所述第二码本子集限制不同。
- 据权利要求53至57任一项所述的基站,其中,所述上行功率控制规则至少包括第一上行功率控制规则和第二上行功率控制规则;其中,所述第一上行功率控制规则为预定义的第三上行功率控制规则,所述第二上行功率控制规则为预定义的第四上行功率控制规则;或者,所述第一上行功率控制规则为预定义的上行功率控制规则,所述第二上行功率控制规则为终端上报的上行功率控制规则或终端上报的功率放大器PA能力对应的上行功率控制规则。
- 一种基站,包括:发送单元,用于向终端发送第一指示信息,所述第一指示信息用于指示上行信号的上行功率控制规则。
- 一种计算机可读存储介质,包括指令,当所述指令在计算机运行时,使得计算机执行如权利要求1至35任一项所述的上行功率控制的方法。
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US17/293,195 US20220007298A1 (en) | 2018-11-12 | 2019-11-12 | Uplink power control method and device |
KR1020217017976A KR102527915B1 (ko) | 2018-11-12 | 2019-11-12 | 업링크 파워 제어 방법 및 기기 |
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US20220007298A1 (en) | 2022-01-06 |
KR20210088701A (ko) | 2021-07-14 |
CN111182619B (zh) | 2022-04-15 |
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