WO2021073605A1 - 一种功率控制参数确定方法及终端 - Google Patents
一种功率控制参数确定方法及终端 Download PDFInfo
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- WO2021073605A1 WO2021073605A1 PCT/CN2020/121442 CN2020121442W WO2021073605A1 WO 2021073605 A1 WO2021073605 A1 WO 2021073605A1 CN 2020121442 W CN2020121442 W CN 2020121442W WO 2021073605 A1 WO2021073605 A1 WO 2021073605A1
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
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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
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
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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
- H04W52/08—Closed loop power control
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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
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
- H04W52/226—TPC being performed according to specific parameters taking into account previous information or commands using past references to control power, e.g. look-up-table
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
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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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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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
- H04W52/38—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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Definitions
- the present invention relates to the field of communication technology, and in particular to a method and terminal for determining power control parameters.
- the power control parameters usually include parameters such as path loss calculation reference signal (Pathloss Reference RS, PL RS), target received power, path loss compensation factor, and closed-loop power control.
- Pathloss Reference RS path loss calculation reference signal
- PL RS path loss calculation reference signal
- target received power path loss compensation factor
- closed-loop power control the terminal (User Equipment, UE) cannot adjust the uplink transmit power, which causes the network to lose control of the UE's power, and it is easy to cause the UE's transmit power to be too high or too low.
- the UE consumes too much transmit power, increases intra-cell interference, increases inter-cell interference, or decreases system capacity. In this way, the configured power control parameters need to include all parameters, resulting in a large resource overhead for power control.
- the embodiments of the present invention provide a method and a terminal for determining power control parameters to solve the problem of large resource overhead occupied by power control.
- an embodiment of the present invention provides a method for determining power control parameters, which is applied to a terminal, and includes:
- the target parameter of the target object is determined according to any one of the following methods:
- the target object and the other objects are selected from physical uplink control channel PUCCH, physical uplink shared channel PUSCH, and sounding reference signal SRS;
- the target parameter includes path loss calculation reference signal, target received power, and path loss compensation factor And at least one of closed-loop power control.
- an embodiment of the present invention also provides a terminal, which is characterized in that it includes:
- the determining module is configured to determine the target parameter of the target object in any of the following ways when the target parameter among the power control parameters of the target object is not configured:
- the target object and the other objects are selected from physical uplink control channel PUCCH, physical uplink shared channel PUSCH, and sounding reference signal SRS;
- the target parameter includes path loss calculation reference signal, target received power, and path loss compensation factor And at least one of closed-loop power control.
- an embodiment of the present invention also provides a terminal, including: a memory, a processor, and a program stored on the memory and running on the processor, and the program is implemented when the processor is executed Steps in the above method for determining power control parameters.
- an embodiment of the present invention also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the power control parameter determination method described above are implemented.
- the terminal can determine the target parameter of the target object according to the target parameter, historical configuration and/or protocol agreement of other objects; in this way, It can simplify the requirements of network equipment for power control parameter configuration, and reduce the resource overhead occupied by power control. At the same time, the flexibility of network device configuration is improved.
- Figure 1 is a structural diagram of a network system applicable to an embodiment of the present invention
- FIG. 2 is a flowchart of a method for determining power control parameters according to an embodiment of the present invention
- FIG. 3 is a structural diagram of a terminal provided by an embodiment of the present invention.
- Fig. 4 is a structural diagram of another terminal provided by an embodiment of the present invention.
- words such as “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “for example” in the embodiment of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
- the wireless communication system may be a 5G system, or an evolved Long Term Evolution (eLTE) system, or a subsequent evolved communication system.
- eLTE evolved Long Term Evolution
- FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present invention. As shown in FIG. 1, it includes a terminal 11 and a network device 12, where the terminal 11 may be a user terminal or other terminal-side device , Such as: mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital assistant, PDA for short), mobile Internet device (Mobile Internet Device, MID) or wearable device ( For terminal-side devices such as Wearable Device), it should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present invention.
- the above-mentioned network device 12 may be a 5G base station, or a later version base station, or a base station in other communication systems, or it is called Node B, Evolved Node B, or Transmission Reception Point (TRP), or access point (Access Point, AP), or other vocabulary in the field, as long as the same technical effect is achieved, the network device is not limited to a specific technical vocabulary.
- the aforementioned network device 12 may be a master node (Master Node, MN) or a secondary node (Secondary Node, SN). It should be noted that, in the embodiment of the present invention, only a 5G base station is taken as an example, but the specific type of network equipment is not limited.
- the power control parameters of PUCCH, PUSCH or SRS include reference signal for path loss calculation, target received power (target value of open-loop received power), path loss compensation factor, closed-loop power control and other parameters.
- target received power target value of open-loop received power
- path loss compensation factor path loss compensation factor
- closed-loop power control other parameters.
- Network equipment needs to pass High-level signaling or physical layer signaling configures these power control parameters.
- the uplink transmission beam indication mechanism can reuse the power control parameter indication.
- the media access control element For a PUCCH transmission, the media access control element (MAC CE) can activate a spatial related information in the spatial related information set to indicate the PUCCH transmission beam, and the association relationship between them is pre-defined by RRC signaling. Configuration.
- the power parameters used for actual PUCCH transmission can be obtained through the association relationship between the spatial related information and the power control parameters.
- the association relationship between the power control parameter set of the physical uplink shared channel, the SRS resource indicator (SRI) and the power control parameter is configured through RRC signaling.
- the actual transmission power of the PUSCH by the terminal is indicated by the SRI field in the Downlink Control Information (DCI).
- DCI Downlink Control Information
- the power control parameters of the SRS are configured through RRC signaling and configured in units of SRS resource sets.
- Each SRS resource set contains at least one SRS resource, and each SRS resource contains space-related information for indicating the transmission beam of the SRS.
- the PUSCH space-related information is indicated by the SRI in the DCI, and each SRI corresponds to one SRS resource, and the space-related information contained in the SRS resource is used to indicate the transmission beam of the PUSCH.
- the terminal can use the above-mentioned power control parameters to adjust the uplink transmission power to meet the transmission power requirements.
- the terminal cannot adjust the uplink transmit power, so that the network loses control of the terminal's power, which easily causes the terminal's transmit power to be too high or too low, causing the terminal to consume Excessive transmission power, increased intra-cell interference, increased inter-cell interference, or reduced system capacity.
- the reference signal for path loss calculation is a downlink RS.
- the reference signal for path loss calculation is a downlink RS.
- a downlink RS To select a default downlink RS, multiple aspects need to be considered: whether the channel environment from the terminal to the network device can be effectively reflected, and whether the downlink RS can be found in as many cases as possible. Whether the Quasi co-location (QCL) information of this downlink RS is relatively stable and does not change frequently, and how to operate in some extreme situations.
- QCL Quasi co-location
- a physical downlink control channel (PDCCH) and a physical random access channel (PRACH) are initially selected from all channels and RSs.
- the PDCCH is a downlink channel that plays a control role, and an important role is to schedule PUCCH, PUSCH, or SRS, and the QCL of the PDCCH contains a downlink RS, so it can be used as a candidate for reference signal for path loss calculation.
- the problem of which one to use is faced. That is, a carrier has multiple control resource sets (CORESET).
- CORESET control resource sets
- BWP bandwidth part
- the PRACH parameter network will be configured, but it is an uplink channel. But what is special is that the QCL of PRACH is always a synchronization signal block (Synchronization Signal Block, SSB) or a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), both of which are downlink RSs.
- SSB Synchronization Signal Block
- CSI-RS Channel State Information Reference Signal
- PDSCH physical downlink shared channel
- SRS physical downlink shared channel
- PDSCH requires high channel capacity and narrow beam, which conflicts with the requirements of PUCCH and SRS; and PDSCH often does not have it, or the channel environment often changes.
- the initial access of the SSB although the beam is wider and the transmission success rate is the goal, the channel environment between the terminal and the network is likely to change after a period of time, and the beam direction of the initial access of the SSB is likely to no longer be the same. The best, and even worse.
- a network device when a network device configures a transmission configuration indicator (TCI) for the PDSCH, it will first configure many TCIs. , And then activate some of them. Then the network device will let the TCI with the smallest TCI ID or the largest TCI ID as a special TCI, for example, the TCI corresponds to a beam with good coverage or stability, or a beam with the highest channel reference signal received power (RSRP).
- TCI transmission configuration indicator
- RSRP channel reference signal received power
- the SSB where the terminal is located is more appropriate, because the terminal believes that the SSB has good performance, and its corresponding beam should be facing the terminal.
- the PL RS configured by the network for other channels can be used. Further, it is necessary to consider the number of PL RS and the activation or update of MAC CE.
- a default downlink RS in QCL can be used.
- the RS in the QCL can be either a downlink RS or an SRS.
- the latter is an uplink RS and cannot be used as a reference signal for path loss calculation.
- the default QCL is SRS and the SRS is associated with a downlink RS, then the SRS associated (associated) downlink RS is used. More specifically, in many cases, the present invention shows how to find the default QCL.
- the network device will use the PDCCH to schedule a dedicated PUCCH (dedicated-PUCCH) or SRS. If the PDCCH has QCL information, then the downlink RS in the QCL information of the PDCCH can also be used.
- a dedicated PUCCH dedicated-PUCCH
- SRS SRS
- the terminal has a CORESET with a CORESET flag of 0 (ie, CORESET#0), and the downlink RS in the QCL information of CORESET#0 can be used.
- CORESET#0 a CORESET flag of 0
- the terminal has a CORESET with a CORESET flag of 0 (ie, CORESET#0), and the downlink RS in the QCL information of CORESET#0 can be used.
- CORESET CORESET with low ID
- the downlink RS in the QCL of PRACH can be used.
- PRACH is used as a random access channel, and network equipment is a downlink RS that always configures PRACH.
- the configuration network is configurable, and it is a good choice to configure the stability of the link quality and the probability of successful transmission as the goal.
- FIG. 2 is a flowchart of a method for determining power control parameters according to an embodiment of the present invention. The method is applied to a terminal, as shown in FIG. 2, and includes the following steps:
- Step 201 In the case where the target parameter in the power control parameter of the target object is not configured, the target parameter of the target object is determined according to any of the following methods:
- the target object and the other objects are selected from physical uplink control channel PUCCH, physical uplink shared channel PUSCH, and sounding reference signal SRS;
- the target parameter includes path loss calculation reference signal, target received power, and path loss compensation factor And at least one of closed-loop power control.
- the network device can configure part of the power control parameters for the target object, or not configure the power control parameters.
- the terminal can determine that the network device is not configured according to the target parameters, historical configuration and/or protocol conventions of other objects. Target parameters.
- the terminal may determine the target parameters of the target object according to the target parameters of other objects configured by the network device, the terminal may also independently select a certain configuration parameter in the historical configuration to determine the target parameter, and the terminal may also select the historical parameter according to the agreement.
- a certain configuration parameter in the configuration determines the target parameter, and the terminal can also directly determine the target parameter by the parameter value agreed by the protocol, which is described in detail in the following embodiments.
- the above-mentioned path loss calculation reference reference signal may be referred to as a path loss reference signal or a path loss reference signal.
- the aforementioned downlink reference signal (Reference Signal, RS) may specifically refer to a channel state information reference signal CSI-RS and/or a synchronization signal block SSB.
- the aforementioned PUCCH may be a dedicated PUCCH.
- the terminal can determine the target parameter of the target object according to the target parameter, historical configuration and/or protocol agreement of other objects; in this way, It can simplify the requirements of network equipment for power control parameter configuration, and reduce the resource overhead occupied by power control. At the same time, the flexibility of network device configuration is improved.
- the determining the target parameter of the target object according to the target parameters of objects other than the target object includes:
- the first path loss calculation reference reference signal of other objects is determined as the path loss calculation reference reference signal of the target object.
- the network equipment configures the PL RS of one or both of PUCCH, PUSCH, and SRS through RRC signaling
- the PL RS that is not configured in PUCCH, PUSCH, and SRS can be based on the configured PL in the other. RS to determine.
- the first path loss calculation reference reference signal is any one of the following:
- the reference reference signal for path loss calculation of the lowest identification number the reference reference signal for path loss calculation of the lowest identification number
- the path loss calculation reference reference signal with the highest identification number the path loss calculation reference reference signal with the highest identification number
- the path loss calculation reference reference signal of the lowest identification number activated or updated by the media intervention control unit MAC CE;
- the path loss calculation reference reference signal with the highest identification number activated or updated by the MAC CE;
- the path loss calculation reference reference signal used at the latest time that is activated or updated by the MAC CE is activated or updated by the MAC CE.
- the PL RS of the target object can also be determined according to the number of PL RS configured by RRC signaling.
- the first path loss calculation reference reference signal is any one of the following:
- the path loss calculation reference reference signal of other objects the path loss calculation reference reference signal of the lowest identification number
- the path loss calculation reference reference signal of other objects the path loss calculation reference reference signal of the highest identification number
- the path loss calculation reference reference signal used at the latest time.
- the first path loss calculation reference reference signal is any one of the following:
- the path loss calculation reference reference signal of other objects the path loss calculation reference reference signal of the lowest identification number activated or updated by the MAC CE;
- the path loss calculation reference reference signal of other objects the path loss calculation reference reference signal of the highest identification number activated or updated by the MAC CE;
- the path loss calculation reference reference signal used at the latest time that is activated or updated by the MAC CE.
- the first path loss calculation reference reference signal is any one of the following:
- the path loss calculation reference reference signal with the lowest identification number Among the most recently used path loss calculation reference reference signals activated or updated by the MAC CE, the path loss calculation reference reference signal with the lowest identification number;
- the path loss calculation reference signal with the highest identification number among the path loss calculation reference reference signals used at the latest time activated or updated by the MAC CE.
- the value of the aforementioned preset threshold may be 4.
- the value of the preset threshold is not limited to 4, and may also be other values, which can be set as required.
- the path loss calculation reference signal of one or two objects is selected as the path loss calculation reference reference signal of the target object according to the preset first priority information,
- the first priority information is obtained through any one of the following methods:
- PL RS for SRS can preferentially use PL RS for PUCCH, or preferentially use PL RS for PUSCH, or the same PL RS for PUCCH and PUSCH.
- Priority, or the terminal determines the priority of the PL RS of PUCCH and PUSCH by itself.
- PUSCH PL RS can preferentially adopt PUCCH PL RS, or prefer SRS PL RS, or PUCCH and SRS PL RS have the same priority , Or the terminal decides the priority of the PL RS of PUCCH and SRS by itself.
- the PL RS of PUCCH can preferentially adopt the PL RS of PUSCH, or preferentially adopt the PL RS of SRS, or the PL RS of PUSCH and SRS have the same priority.
- the terminal decides the priority of the PL RS of PUSCH and SRS by itself
- the path loss calculation reference reference signal is associated with a synchronization signal block and a channel state information reference signal, and the path loss calculation reference reference signal of the target object is determined according to preset second priority information, and the target object
- the path loss calculation reference reference signal is selected from the synchronization signal block and the channel state information reference signal, and the second priority information is obtained by any of the following methods:
- the RS associated with the PL RS is selected from SSB and CSI-RS, SSB is preferred, CSI-RS is preferred, or SSB or CSI-RS is preferred by the terminal itself.
- the identification of the path loss calculation reference reference signal is any one of the following situations:
- the identification SSB-Index of the synchronization signal block SSB is adopted;
- the path loss calculation reference reference signal is the PUSCH path loss calculation reference reference signal
- the PUSCH path loss calculation reference reference signal identifier PUSCH-PathlossReferenceRS-Id is adopted;
- path loss calculation reference reference signal is a PUCCH path loss calculation reference signal
- PUCCH path loss calculation reference signal identifier PUCCH-PathlossReferenceRS-Id use the PUCCH path loss calculation reference signal identifier PUCCH-PathlossReferenceRS-Id
- the path loss calculation reference reference signal is an SRS path loss calculation reference reference signal
- the SRS resource identifier SRS-ResourceId is adopted
- the path loss calculation reference reference signal is the path loss calculation reference reference signal of the SRS
- the SRS resource set identifier SRS-ResourceSetId is adopted.
- determining the target parameter according to historical configuration information and/or agreement includes:
- the first RS may be understood as the terminal determining the downlink RS associated with the path loss calculation reference signal, and after determining the first RS, the path loss may be calculated based on the first RS.
- the first RS may be determined in multiple manners, which will be described in detail below.
- the first RS is any one of the following downlink RSs:
- a downlink RS associated with a PRACH corresponding to a random access response (Random Access Response, RAR), and the random access response RAR is used to schedule the target object.
- RAR Random Access Response
- the QCL information includes the RS identification number (ie RS ID), and the RS corresponding to the RS ID is the downlink RS in the QCL information.
- the downlink RS in the QCL information can be understood as the QCL information association The downlink RS.
- the embodiment of the present invention provides multiple first RS determination schemes, and the terminal can set one of the schemes according to actual needs to determine target parameters that are not configured by the network device, thereby improving the flexibility of target parameter determination.
- the downlink RS in the quasi co-located QCL information associated with the target object includes any one of the following:
- Solution 1 In the case of the first carrier configuration control resource set CORESET, the downlink RS in the QCL information of the first CORESET, the first CORESET is one of the CORESETs configured by the first carrier;
- Solution 2 In the case where CORESET is not configured on the first carrier and M TCIs for PDSCH are configured in the active bandwidth part BWP of the first carrier, the downlink RS in the first TCI, the first TCI Is one of the M TCIs, the M TCIs are in an active state, and M is a positive integer;
- Solution 3 In the case that the first carrier is not configured with CORESET, and the activated BWP of the first carrier is not configured with an activated TCI, the third RS of the first BWP of the second carrier, the second carrier and all The first carrier is different;
- Solution 4 In the case that the first carrier is not configured with CORESET, the third RS of the first BWP of the second carrier, the second carrier is different from the first carrier.
- the first CORESET may include any one of the following:
- the CORESET configured at the most recent moment of the first carrier
- the CORESET configured at the most recent time of the first carrier may include: the CORESET of the lowest identification number or the highest identification number among the CORESETs configured at the most recent time of the first carrier.
- CORESET ID that is, CORESET ID.
- CORESET with the lowest ID can be understood as the ID with the lowest CORESET;
- CORESET with the highest ID can be understood as The identification number with the highest CORESET ID.
- the CORESET whose identification number is 0 in the CORESET of the above-mentioned first carrier configuration may be the most recent CORESET#0.
- the beam corresponding to the CORESET with the lowest identification number is often a beam with wide coverage or relatively stable, and the beam corresponding to the CORESET with the highest identification number is often the beam that best matches the current channel and has the highest channel RSRP.
- the downlink RS in the QCL information of the first CORESET includes:
- N1 is a positive integer
- the N1 downlink RSs are associated with the CORESET of the BWP configuration activated by the first carrier.
- a second RS can be selected as the first RS from all CORESET-associated downlink RSs of the BWP configuration activated by the first carrier.
- the second RS may include any of the following:
- the RS identification number is SSB-Index; if the RS is a channel state information reference signal CSI-RS, the RS identification number is CSI-RS-Index;
- the downlink RS includes SSB and CSI-RS
- the downlink RS includes SSB and CSI-RS
- the CSI-RS with the lowest identification number or the highest identification number, where the priority of the SSB is lower than the CSI-RS
- One RS arbitrarily selected among the N1 downlink RSs.
- the second RS may also be the latest downlink RS among the N1 downlink RSs.
- the first TCI is the TCI with the lowest identification number or the highest identification number among the M TCIs.
- the first TCI may also be the TCI at the most recent time among the M TCIs.
- the RS ID is included in the TCI, and the RS corresponding to the RS ID can be understood as the RS in the TCI.
- the second carrier includes at least one of the current carrier, the carrier of the primary cell, the carrier with the lowest identification number, and the carrier with the highest identification number.
- the first BWP includes at least one of the activated BWP, the initial BWP, the BWP with the lowest identification number, and the BWP with the highest identification number.
- the third RS includes any one of the following:
- the third CORESET includes CORESET with an identification number of 0, CORESET with the lowest identification number, CORESET with the highest identification number, or CORESET selected by the terminal;
- N2 is a positive integer, and the N2 downlink RSs are associated with the CORESET configured by the first BWP;
- the fourth TCI is the TCI with the lowest identification number or the highest identification number among the L TCIs in the active state, or the most recently used TCI among the L TCIs, and L is a positive integer.
- the third CORESET can be selected among the BWPs of different carriers according to the priority of the carrier, and the third CORESET is CORESET#0 as an example for description.
- the priority of the BWP of carriers other than the first carrier in the first cell group is greater than that of the BWP in the second cell group
- the first cell group is the cell group where the target object is located
- the second cell group is connected to the BWP of the second cell group.
- the first cell group is different.
- the aforementioned third CORESET is the CORESET configured by the first BWP.
- the foregoing fourth RS may be an RS with the smallest RS ID, the largest RS ID, or an RS selected by the terminal among the N2 downlink RSs.
- the L TCIs may be all TCIs configured for the first BWP, or may be TCIs used for PDSCH among all TCIs configured for the first BWP, that is, the L TCIs are used for PDSCH.
- selecting the RS with the smallest RS ID or the largest RS ID among the N downlink RSs as the fourth RS can be selected according to priority, specifically:
- the downlink RS includes SSB and CSI-RS
- the downlink RS includes SSB and CSI-RS
- the CSI-RS with the lowest identification number or the highest identification number, wherein the priority of the SSB is lower than the CSI-RS.
- the confirmation of the above-mentioned priority may be configured by the network device, or agreed upon by the protocol, or independently determined by the terminal, which will not be further described here.
- the foregoing third CORESET may be understood as the CORESET recently configured by the first BWP
- the foregoing L TCI may be understood as the most recently configured TCI of the first BWP.
- the third RS of the first BWP of the second carrier is used, and the second carrier is the third RS of the first BWP.
- the carrier is different from the first carrier; or, when the first carrier is not configured with CORESET, the third RS of the first BWP of the second carrier is used, and the second carrier is different from the first carrier.
- the case where the activated BWP of the first carrier is not configured with the TCI in the activated state can be specifically understood as that the TCIs configured on the activated BWP of the first carrier are all in the deactivated state, or the activated BWP of the first carrier is not configured with TCI.
- the fifth RS includes at least one of the following:
- the RS with the lowest identification number If the RS is a synchronization signal block SSB, the RS identification number is SSB-Index; if the RS is a channel state information reference signal CSI-RS, the RS identification number is CSI-RS-Index;
- the RS with the highest identification number If the RS is a synchronization signal block SSB, the RS identification number is SSB-Index; if the RS is a channel state information reference signal CSI-RS, the RS identification number is CSI-RS-Index;
- the RS in the TCI state with the highest identification number Among all TCI states or activated TCI states, the RS in the TCI state with the highest identification number.
- the RS in the TCI state with the lowest identification number and the RS in the TCI state with the highest identification number are used when CORESET is not configured.
- the SSB where the terminal is located includes at least one of the following:
- the first RS is the RS that currently transmits the available beam:
- the RS of the beam used for the current transmission belongs to the path loss calculation reference reference signal configured by the radio resource control RRC signaling;
- the RS of the beam used for the current transmission belongs to the reference signal for path loss calculation configured by RRC signaling and activated or updated by the MAC CE;
- the number of RSs corresponding to the current beams available for transmission is less than or equal to K;
- the sum of the number of RSs corresponding to the currently available beams for transmission and the number of reference signals for calculating the path loss configured by RRC signaling is less than or equal to K;
- the RSs of the beams currently used for transmission belong to the path loss calculation reference reference signals configured by the radio resource control RRC signaling, and the number of RSs corresponding to the beams currently available for transmission is less than or equal to K;
- the RSs of the beams currently used for transmission belong to the path loss calculation reference reference signals configured by the radio resource control RRC signaling, and the sum of the number of RSs corresponding to the currently available beams for transmission and the number of path loss calculation reference signals configured by the RRC signaling is less than or equal to K;
- the RSs of the beams currently used for transmission belong to the path loss calculation reference reference signals configured by RRC signaling and activated or updated by the MAC CE, and the number of RSs corresponding to the beams currently available for transmission is less than or equal to K;
- the RS of the beam used for current transmission belongs to the reference signal for path loss calculation configured by RRC signaling and activated or updated by MAC CE, and the number of RSs corresponding to the beams currently available for transmission is the same as the reference signal for path loss calculation configured by RRC signaling.
- the sum of the numbers is less than or equal to K.
- the value of K is equal to 4.
- the value of K is not limited to being equal to 4, and can also be set to other values as required.
- none of the PUCCH, PUSCH, and SRS is configured with the path loss calculation reference signal
- determining the target parameter of the target object according to historical configuration and/or agreement includes:
- the target parameter in the power control parameter of the target object is not configured, the target parameter is determined according to the historical configuration and/or agreement.
- the target parameter includes at least one of target received power, path loss compensation factor, and closed-loop power control, according to the historical configuration information and/or protocol
- the agreed and determined target parameters include:
- the target parameter of the PUCCH and the PUCCH corresponding to the target time are the same;
- the SRS and the target parameter of the SRS corresponding to the target time are the same;
- the target time is located after the initial access and before the RRC configuration.
- the target parameters can be determined based on the PUCCH corresponding to the target time.
- the target received power, path loss compensation factor, and closed-loop power control can be replaced with the target time corresponding
- the target parameter can be determined based on the configuration of the SRS corresponding to the target time.
- the target received power, path loss compensation factor, and closed-loop power control can be replaced with the target time corresponding The corresponding power control parameters of the SRS.
- the target parameter when the target object is selected from PUCCH, PUSCH, or SRS, the target parameter can be determined directly according to the parameter value agreed by the protocol. For example, when the target parameter includes closed-loop power control, the value of the closed-loop power control is 0; when the target parameter includes a path loss compensation factor, the value of the path loss compensation factor is 1.
- P0 when the target object is selected from PUCCH and SRS, when the target parameter includes the target received power P0, P0 may be calculated based on the following method:
- msg3-DeltaPreamble is the power offset of msg3 and RACH sequence transmission configured by the upper layer.
- preambleReceivedTargetPower is the target power value of the RACH sequence that the network is configured to expect to receive.
- the path loss compensation factor may be calculated based on the following method:
- the path loss compensation factor is the value of msg3-Alpha; otherwise, the path loss compensation factor is 1.
- the closed-loop power control can be calculated based on the following method:
- f ⁇ P rampup,b,f,c + ⁇ msg2,b,f,c ;
- ⁇ msg2, b, f, c represent a transmit power control (transmit power control, TPC) command value indicated in the random response grant of the random access message, and correspond to the carrier f in the serving cell c where the uplink BWP is currently activated.
- TPC transmit power control
- ⁇ P rampuprequested, b, f, c is provided by the higher layer.
- carrier f is from the first random access preamble to the last random access preamble, and the total power requested by the higher layer Increment.
- the carrier f of the serving cell c where the currently activated BWP b is located in the uplink Is the bandwidth allocated by PUSCH resources, and represents the number of resource blocks for the first PUSCH transmission on the currently activated BWP b in the uplink;
- ⁇ TF,b,f,c (0) represents the power adjustment of the first PUSCH transmission on the currently activated BWP b in the uplink
- ⁇ b, f, c (0) is the path loss compensation factor value configured by the upper layer for msg3PUSCH, and if it is not configured by the upper layer, it is 0;
- PO_PUSCH, b, f, c (0) is the target received power
- the terminal may calculate the path loss based on one of the following RSs:
- Method 1 Use the RS in the QCL information of CORESET.
- the downlink RS can be selected as follows:
- Case 1 when CORESET is configured on the current carrier (the first carrier where the PUCCH or SRS is located), including the method 1.1 to the method 1.3.
- the RS in the QCL information of the CORESET at the most recent moment is used; further, it can be the highest CORESET ID or the lowest CORESET ID.
- Method 1.2 use the RS in the QCL information of CORESET#0; 1. Further, it can be CORESET#0 at the most recent moment.
- Manner 1.3 select from all the downlink RSs associated with CORESET in the BWP activated by the current carrier.
- it may be the RS with the smallest or largest RS ID. Further, if both SSB and CSI-RS exist, then select from the preferred SSB, or select from the preferred CSI-RS, or the terminal itself selects the preferred SSB or the CSI-RS; in another embodiment, it can be arbitrarily selected by the terminal One RS; in another embodiment, it can also be the RS at the most recent moment.
- Method 1.4 using the TCI (activated TCI state) used for the activated state of the PDSCH on the activated BWP of the current carrier; optionally, the TCI with the largest or smallest identification number in the activated state can be used (ie activated TCI state) with lowest/highest ID); The TCI at the most recent moment in the TCI in the active state can also be used.
- Method 1.5 there is no activated TCI state on the activated BWP of the current carrier, or regardless of whether there is activated TCI state on the activated BWP of the current carrier, the specific RS of the specific BWP of the specific carrier is used;
- the specific carrier may include: the carrier of the primary cell or the lowest ID carrier or the highest ID carrier;
- the specific BWP includes at least one of the activated BWP, the initial BWP, the BWP (lowest ID BWP) with the lowest identification number, and the BWP (highest ID BWP) with the highest identification number. It can also include all BWPs, that is, for BWPs. There are no restrictions.
- the specific RS may include any of the following:
- One of all the downlink RSs associated with CORESET configured by the first BWP can be the RS with the largest RS ID or the smallest RS ID, or the RS self-selected by the terminal; it should be understood that when selecting the largest RS ID or the smallest RS ID, It can be selected according to the priority of SSB and CSI-RS. For example, when the priority of SSB is greater than the priority of CSI-RS, the SSB with the largest or smallest SSB ID can be selected as the specific RS; when the priority of CSI-RS When the priority is greater than the SSB, the CSI-RS with the largest or smallest CSI-RS ID can be selected as the specific RS.
- the most recently used RS in the active state TCI for PDSCH.
- the specific RS should satisfy the RS at the most recent moment.
- the specific RS is one of all CORESET-associated downlink RSs recently configured by the first BWP; or, the specific RS is the most recently configured first BWP for PDSCH.
- Manner 2 one of several RSs associated with the spatial related information of PUCCH or SRS;
- the RS may be the one with the largest or smallest RSID in the corresponding RS.
- the RS is the synchronization signal block SSB
- the RS identification number is SSB-Index
- the RS is the channel state information reference signal CSI-RS
- the RS The identification number is CSI-RS-Index.
- it may also be the RS configured in the QCL information of the CORESET with the smallest or the largest CORESET ID in the CORESET used to determine the spatial related information. Further, the CORESET in the CORESET configured at the most recent moment may be used. The RS configured in the QCL information of the CORESET with the smallest ID or the largest CORESET ID.
- the RS may also be the RS with the smallest TCI state ID or the largest TCI state ID in the corresponding TCI used for the PDSCH.
- the TCI selection range for the PDSCH is all TCI states or activated TCI states; further, the RS is used when the first carrier is not configured with CORESET for determining the spatial related information.
- Method 6 the SSB where the terminal is located, refers to the SSB receiving the current broadcast information, or the SSB corresponding to CORSET#0;
- FIG. 3 is a structural diagram of a terminal according to an embodiment of the present invention.
- the terminal 300 includes:
- the determining module 301 is configured to determine the target parameter of the target object according to any one of the following methods when the target parameter among the power control parameters of the target object is not configured:
- the target object and the other objects are selected from physical uplink control channel PUCCH, physical uplink shared channel PUSCH, and sounding reference signal SRS;
- the target parameter includes path loss calculation reference signal, target received power, and path loss compensation factor And at least one of closed-loop power control.
- the determining the target parameter of the target object according to the target parameters of objects other than the target object includes:
- the first path loss calculation reference reference signal of other objects is determined as the path loss calculation reference reference signal of the target object.
- the first path loss calculation reference reference signal is any one of the following:
- the path loss calculation reference reference signal with the lowest identification number the path loss calculation reference reference signal with the lowest identification number
- the path loss calculation reference reference signal with the highest identification number the path loss calculation reference reference signal with the highest identification number
- the path loss calculation reference reference signal of the lowest identification number activated or updated by the media intervention control unit MAC CE;
- the path loss calculation reference reference signal with the highest identification number activated or updated by the MAC CE;
- the path loss calculation reference reference signal used at the latest time that is activated or updated by the MAC CE is activated or updated by the MAC CE.
- the first path loss calculation reference reference signal is any one of the following:
- the path loss calculation reference reference signal of other objects the path loss calculation reference reference signal of the lowest identification number
- the path loss calculation reference reference signal of other objects the path loss calculation reference reference signal of the highest identification number
- the path loss calculation reference reference signal used at the latest time.
- the first path loss calculation reference reference signal is any one of the following:
- the path loss calculation reference reference signal of other objects the path loss calculation reference reference signal of the lowest identification number activated or updated by the MAC CE;
- the path loss calculation reference reference signal of other objects the path loss calculation reference reference signal of the highest identification number activated or updated by the MAC CE;
- the path loss calculation reference reference signal used at the latest time that is activated or updated by the MAC CE.
- the first path loss calculation reference reference signal is any one of the following:
- the path loss calculation reference reference signal with the lowest identification number Among the most recently used path loss calculation reference reference signals activated or updated by the MAC CE, the path loss calculation reference reference signal with the lowest identification number;
- the path loss calculation reference signal with the highest identification number among the path loss calculation reference reference signals used at the latest time activated or updated by the MAC CE.
- the path loss calculation reference signal of one or two objects is selected as the path loss calculation reference reference signal of the target object according to the preset first priority information,
- the first priority information is obtained through any one of the following methods:
- the path loss calculation reference reference signal is associated with a synchronization signal block and a channel state information reference signal, and the path loss calculation reference reference signal of the target object is determined according to preset second priority information, and the target object
- the path loss calculation reference reference signal is selected from the synchronization signal block and the channel state information reference signal, and the second priority information is obtained by any of the following methods:
- the identification of the path loss calculation reference reference signal is any one of the following situations:
- the identification SSB-Index of the synchronization signal block SSB is adopted;
- the path loss calculation reference reference signal is the PUSCH path loss calculation reference reference signal
- the PUSCH path loss calculation reference reference signal identifier PUSCH-PathlossReferenceRS-Id is adopted;
- path loss calculation reference reference signal is a PUCCH path loss calculation reference signal
- PUCCH path loss calculation reference signal identifier PUCCH-PathlossReferenceRS-Id use the PUCCH path loss calculation reference signal identifier PUCCH-PathlossReferenceRS-Id
- the path loss calculation reference reference signal is an SRS path loss calculation reference reference signal
- the SRS resource identifier SRS-ResourceId is adopted
- the path loss calculation reference reference signal is the path loss calculation reference reference signal of the SRS
- the SRS resource set identifier SRS-ResourceSetId is adopted.
- determining the target parameter of the target object according to historical configuration and/or agreement includes:
- the first RS in the historically configured downlink reference signals RS is determined as the path loss calculation reference reference signal.
- the first RS is any one of the following:
- the random access response RAR corresponds to the downlink RS associated with the PRACH, and the random access response RAR is used to schedule the target object.
- the target object is located on the first carrier, and the downlink RS in the quasi co-located QCL information associated with the target object includes any one of the following:
- the active bandwidth part BWP of the first carrier is configured with M transmission configuration indication TCIs for PDSCH
- the downlink RS in the first TCI the first TCI Is one of the M TCIs, the M TCIs are in an active state, and M is a positive integer
- the third RS of the first BWP of the second carrier, the second carrier and the first carrier Carriers are different;
- the third RS of the first BWP of the second carrier, the second carrier is different from the first carrier.
- the first CORESET includes any one of the following:
- the CORESET configured at the most recent moment of the first carrier
- the CORESET configured at the latest time of the first carrier includes:
- the downlink RS in the QCL information of the first CORESET includes:
- N1 is a positive integer
- the N1 downlink RSs are associated with the CORESET of the BWP configuration activated by the first carrier.
- the second RS includes any one of the following:
- the RS identification number is SSB-Index; if the RS is a channel state information reference signal CSI-RS, the RS identification number is CSI-RS-Index;
- the downlink RS includes SSB and CSI-RS
- the downlink RS includes SSB and CSI-RS
- the CSI-RS with the lowest identification number or the highest identification number, where the priority of the SSB is lower than the CSI-RS
- One RS arbitrarily selected among the N1 downlink RSs.
- the first TCI is the TCI with the lowest identification number or the highest identification number among the M TCIs.
- the second carrier includes at least one of the current carrier, the carrier of the primary cell, the carrier with the lowest identification number, and the carrier with the highest identification number.
- the first BWP includes at least one of an activated BWP, an initial BWP, a BWP with the lowest identification number, and a BWP with the highest identification number.
- the third RS includes any one of the following:
- the third CORESET includes at least one of CORESET with an identification number of 0, CORESET with the lowest identification number, CORESET with the highest identification number, and CORESET selected by the terminal;
- N2 is a positive integer, and the N2 downlink RSs are associated with the CORESET configured by the first BWP;
- the fourth TCI is the TCI with the lowest identification number or the highest identification number among the L TCIs in the active state, or the most recently used TCI among the L TCIs, and L is a positive integer.
- the L TCIs are used for PDSCH.
- the fifth RS includes at least one of the following:
- the RS with the lowest identification number If the RS is a synchronization signal block SSB, the RS identification number is SSB-Index; if the RS is a channel state information reference signal CSI-RS, the RS identification number is CSI-RS-Index;
- the RS with the highest identification number If the RS is a synchronization signal block SSB, the RS identification number is SSB-Index; if the RS is a channel state information reference signal CSI-RS, the RS identification number is CSI-RS-Index;
- the RS in the TCI state with the highest identification number Among all TCI states or activated TCI states, the RS in the TCI state with the highest identification number.
- the RS in the TCI state with the lowest identification number and the RS in the TCI state with the highest identification number are used when CORESET is not configured.
- the SSB where the terminal is located includes at least one of the following:
- the first RS is the RS that currently transmits the available beam:
- the RS of the beam used for the current transmission belongs to the path loss calculation reference reference signal configured by the radio resource control RRC signaling;
- the RS of the beam used for the current transmission belongs to the reference signal for path loss calculation configured by RRC signaling and activated or updated by the MAC CE;
- the number of RSs corresponding to the current beams available for transmission is less than or equal to K;
- the sum of the number of RSs corresponding to the currently available beams for transmission and the number of reference signals for calculating the path loss configured by RRC signaling is less than or equal to K;
- the RSs of the beams currently used for transmission belong to the path loss calculation reference reference signals configured by the radio resource control RRC signaling, and the number of RSs corresponding to the beams currently available for transmission is less than or equal to K;
- the RSs of the beams currently used for transmission belong to the path loss calculation reference reference signals configured by the radio resource control RRC signaling, and the sum of the number of RSs corresponding to the currently available beams for transmission and the number of path loss calculation reference signals configured by the RRC signaling is less than or equal to K;
- the RSs of the beams currently used for transmission belong to the path loss calculation reference reference signals configured by RRC signaling and activated or updated by the MAC CE, and the number of RSs corresponding to the beams currently available for transmission is less than or equal to K;
- the RS of the beam used for current transmission belongs to the reference signal for path loss calculation configured by RRC signaling and activated or updated by MAC CE, and the number of RSs corresponding to the beams currently available for transmission is the same as the reference signal for path loss calculation configured by RRC signaling.
- the sum of the numbers is less than or equal to K.
- K is equal to 4.
- none of the PUCCH, PUSCH, and SRS is configured with the path loss calculation reference reference signal
- determining the target parameter of the target object according to historical configuration and/or agreement includes:
- the target parameter in the power control parameter of the target object is not configured, the target parameter is determined according to the historical configuration and/or agreement.
- the determining the target parameter according to historical configuration information and/or agreement includes:
- the target parameter of the target PUCCH is the same as the target parameter of the PUCCH corresponding to the target moment;
- the target parameter of the target PUSCH is the same as the target parameter of the PUSCH corresponding to the target moment;
- the target SRS and the target parameter of the SRS corresponding to the target time are the same;
- the target time is located after initial access and before RRC configuration.
- the value of the closed-loop power control is 0.
- the value of the path loss compensation factor is 1.
- the PUCCH is a dedicated PUCCH.
- the terminal provided by the embodiment of the present invention can implement the various processes implemented by the terminal in the method embodiment of FIG. 2. To avoid repetition, details are not described herein again.
- Fig. 4 is a schematic diagram of the hardware structure of a terminal for implementing various embodiments of the present invention.
- the terminal 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, a processor 410, and a power supply 411 and other components.
- a radio frequency unit 401 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, a processor 410, and a power supply 411 and other components.
- the terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components.
- the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle
- the processor 410 is configured to determine the target parameter of the target object according to any one of the following methods when the target parameter among the power control parameters of the target object is not configured:
- the target object and the other objects are selected from physical uplink control channel PUCCH, physical uplink shared channel PUSCH, and sounding reference signal SRS;
- the target parameter includes path loss calculation reference signal, target received power, and path loss compensation factor And at least one of closed-loop power control.
- processor 410 and radio frequency unit 401 can implement various processes implemented by the terminal in the method embodiment of FIG. 2, and to avoid repetition, details are not described herein again.
- the radio frequency unit 401 can be used to receive and send signals during information transmission or communication. Specifically, the downlink data from the base station is received and processed by the processor 410; in addition, Uplink data is sent to the base station.
- the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.
- the terminal provides users with wireless broadband Internet access through the network module 402, such as helping users to send and receive emails, browse web pages, and access streaming media.
- the audio output unit 403 may convert the audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into an audio signal and output it as sound. Moreover, the audio output unit 403 may also provide audio output related to a specific function performed by the terminal 400 (for example, call signal reception sound, message reception sound, etc.).
- the audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.
- the input unit 404 is used to receive audio or video signals.
- the input unit 404 may include a graphics processing unit (GPU) 4041 and a microphone 4042.
- the graphics processor 4041 is configured to respond to still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode.
- the data is processed.
- the processed image frame can be displayed on the display unit 406.
- the image frame processed by the graphics processor 4041 may be stored in the memory 409 (or other storage medium) or sent via the radio frequency unit 401 or the network module 402.
- the microphone 4042 can receive sound, and can process such sound into audio data.
- the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 401 in the case of a telephone call mode for output.
- the terminal 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors.
- the light sensor includes an ambient light sensor and a proximity sensor.
- the ambient light sensor can adjust the brightness of the display panel 4041 according to the brightness of the ambient light.
- the proximity sensor can close the display panel 4041 and/or when the terminal 400 is moved to the ear. Or backlight.
- the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal gestures (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared Sensors, etc., will not be repeated here.
- the display unit 406 is used to display information input by the user or information provided to the user.
- the display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
- LCD liquid crystal display
- OLED organic light-emitting diode
- the user input unit 407 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the terminal.
- the user input unit 407 includes a touch panel 4071 and other input devices 4072.
- the touch panel 4071 also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 4071 or near the touch panel 4071. operating).
- the touch panel 4071 may include two parts: a touch detection device and a touch controller.
- the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 410, the command sent by the processor 410 is received and executed.
- the touch panel 4071 can be realized by various types such as resistive, capacitive, infrared, and surface acoustic wave.
- the user input unit 407 may also include other input devices 4072.
- other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
- the touch panel 4071 can be overlaid on the display panel 4041.
- the touch panel 4071 detects a touch operation on or near it, it transmits it to the processor 410 to determine the type of the touch event, and then the processor 410 determines the type of the touch event according to the touch.
- the type of event provides corresponding visual output on the display panel 4041.
- the touch panel 4071 and the display panel 4041 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 4071 and the display panel 4041 can be integrated. Realize the input and output functions of the terminal, the specifics are not limited here.
- the interface unit 408 is an interface for connecting an external device with the terminal 400.
- the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
- the interface unit 408 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 400 or may be used to communicate between the terminal 400 and the external device. Transfer data between.
- the memory 409 can be used to store software programs and various data.
- the memory 409 may mainly include a storage program area and a storage data area.
- the storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc.
- the memory 409 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
- the processor 410 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. It executes by running or executing software programs and/or modules stored in the memory 409, and calling data stored in the memory 409. Various functions of the terminal and processing data, so as to monitor the terminal as a whole.
- the processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc., the modem
- the processor mainly deals with wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 410.
- the terminal 400 may also include a power source 411 (such as a battery) for supplying power to various components.
- a power source 411 such as a battery
- the power source 411 may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system.
- the terminal 400 includes some functional modules not shown, which will not be repeated here.
- the embodiment of the present invention also provides a terminal, including a processor 410, a memory 409, a computer program stored in the memory 409 and running on the processor 410, and the computer program is implemented when the processor 410 is executed.
- a terminal including a processor 410, a memory 409, a computer program stored in the memory 409 and running on the processor 410, and the computer program is implemented when the processor 410 is executed.
- the embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
- a computer program is stored on the computer-readable storage medium.
- the embodiment of the method for determining power control parameters on the terminal side provided by the embodiment of the present invention is realized.
- the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk, or optical disk, etc.
- the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.) execute the method described in each embodiment of the present invention.
- a terminal which may be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.
- modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in this application.
- ASICs application specific integrated circuits
- DSP Digital Signal Processing
- DSP Device digital signal processing equipment
- PLD Programmable Logic Device
- Field-Programmable Gate Array Field-Programmable Gate Array
- FPGA Field-Programmable Gate Array
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Abstract
Description
Claims (34)
- 一种功率控制参数确定方法,应用于终端,其特征在于,包括:在未配置目标对象的功率控制参数中目标参数的情况下,按照以下任一种方式确定所述目标对象的目标参数:根据网络设备配置的其他对象的目标参数确定所述目标对象的目标参数,所述其他对象不同于所述目标对象;按照历史配置确定所述目标对象的目标参数;按照协议约定确定所述目标对象的目标参数;其中,所述目标对象和所述其他对象选自物理上行控制信道PUCCH、物理上行共享信道PUSCH和探测参考信号SRS;所述目标参数包括路损计算参考参考信号、目标接收功率、路损补偿因子和闭环功率控制其中至少一项。
- 根据权利要求1所述的方法,其特征在于,所述目标参数包括所述路损计算参考参考信号时,按照历史配置和/或协议约定确定所述目标对象的目标参数包括:将历史配置的下行参考信号RS中的第一RS确定为所述路损计算参考参考信号。
- 根据权利要求2所述的方法,其特征在于,所述第一RS为以下任一种:所述目标对象关联的准共址QCL信息中的下行RS;用于确定当前资源对应的发射波束的多个RS中的第五RS;终端所在的SSB;当前发送所用波束的RS;目标物理下行控制信道PDCCH的QCL信息中的下行RS,所述目标PDCCH为调度所述目标对象的PDCCH;最近一次物理随机接入信道PRACH关联的下行RS;随机接入响应RAR对应的PRACH关联的下行RS,所述随机接入响应RAR用于调度所述目标对象。
- 根据权利要求3所述的方法,其特征在于,所述目标对象位于第一载 波,所述目标对象关联的准共址QCL信息中的下行RS包括以下任一种:所述第一载波配置控制资源集CORESET的情况下,第一CORESET的QCL信息中的下行RS,所述第一CORESET为所述第一载波配置的CORESET其中之一;在所述第一载波未配置CORESET,且所述第一载波的激活带宽部分BWP配置了用于PDSCH的M个传输配置指示TCI的情况下,第一TCI中的下行RS,所述第一TCI为所述M个TCI其中之一,所述M个TCI处于激活状态,M为正整数;在所述第一载波未配置CORESET,且第一载波的激活BWP没有配置处于激活状态的TCI的情况下,第二载波的第一BWP的第三RS,所述第二载波与所述第一载波不同;在所述第一载波未配置CORESET的情况下,第二载波的第一BWP的第三RS,所述第二载波与所述第一载波不同。
- 根据权利要求4所述的方法,其特征在于,所述第一CORESET包括以下任一种:所述第一载波最近时刻配置的CORESET;所述第一载波配置的CORESET中标识号为0的CORESET。
- 根据权利要求5所述的方法,其特征在于,所述第一载波最近时刻配置的CORESET包括:所述第一载波最近时刻配置的CORESET中最低标识号或者最高标识号的CORESET。
- 根据权利要求4所述的方法,其特征在于,所述第一CORESET的QCL信息中的下行RS包括:N1个下行RS中的第二RS,N1为正整数,所述N1个下行RS与所述第一载波激活的BWP配置的CORESET关联。
- 根据权利要求7所述的方法,其特征在于,所述第二RS包括以下任一种:最低标识号或者最高标识号的RS;当所述下行RS包括SSB和CSI-RS的情况下,最低标识号或者最高标 识号的SSB,其中,SSB的优先级大于CSI-RS;当所述下行RS包括SSB和CSI-RS的情况下,最低标识号或者最高标识号的CSI-RS,其中,SSB的优先级小于CSI-RS;在所述N1个下行RS中任意选择的一个RS。
- 根据权利要求4所述的方法,其特征在于,所述第一TCI为所述M个TCI中最低标识号或者最高标识号的TCI。
- 根据权利要求4所述的方法,其特征在于,所述第二载波包括当前载波、主小区的载波、最低标识号的载波和最高标识号的载波中的至少一项。
- 根据权利要求4所述的方法,其特征在于,所述第一BWP包括激活BWP、初始BWP、最低标识号的BWP和最高标识号的BWP中的至少一项。
- 根据权利要求4所述的方法,其特征在于,所述第三RS包括以下任一项:第三CORESET的QCL信息中的RS,所述第三CORESET包括标识号为0的CORESET、最低标识号的CORESET、最高标识号的CORESET和所述终端选择的CORESET中的至少一项;N2个下行RS中的第四RS,N2为正整数,所述N2个下行RS与所述第一BWP配置的CORESET关联;第四TCI中的下行RS,所述第四TCI为处于激活状态的L个TCI中最低标识号或最高标识号的TCI,或者所述L个TCI中最近使用的TCI,L为正整数。
- 根据权利要求12所述的方法,其特征在于,所述L个TCI用于PDSCH。
- 根据权利要求3所述的方法,其特征在于,所述第五RS包括以下至少一项:最低标识号的RS;最高标识号的RS;用于确定当前资源波束的CORESET中,最低标识号的CORESET的QCL信息中的RS;用于确定当前资源波束的CORESET中,最高标识号的CORESET的QCL信息中的RS;所有TCI state或激活的TCI state中,最低标识号的TCI state中的RS;所有TCI state或激活的TCI state中,最高标识号的TCI state中的RS。
- 根据权利要求14所述的方法,其特征在于,所述最低标识号的TCI state中的RS和所述最高标识号的TCI state中的RS在未配置CORESET时使用。
- 根据权利要求3所述的方法,其特征在于,终端所在的SSB包括以下至少一项:接收当前广播信息的SSB;标识号为0的CORESET对应的SSB。
- 根据权利要求3所述的方法,其特征在于,在以下任一种情况时,所述第一RS为当前发送可用波束的RS:当前发送所用波束的RS属于被无线资源控制RRC信令配置的路损计算参考参考信号;当前发送所用波束的RS属于被RRC信令配置、且被MAC CE激活或更新的路损计算参考参考信号;当前发送可用波束对应的RS数量小于等于K个;当前发送可用波束对应的RS数量与RRC信令配置的路损计算参考参考信号的数量之和小于等于K个;当前发送所用波束的RS属于被无线资源控制RRC信令配置的路损计算参考参考信号,且当前发送可用波束对应的RS数量小于等于K个;当前发送所用波束的RS属于被无线资源控制RRC信令配置的路损计算参考参考信号,且当前发送可用波束对应的RS数量与RRC信令配置的路损计算参考参考信号的数量之和小于等于K个;当前发送所用波束的RS属于被RRC信令配置、且被MAC CE激活或更新的路损计算参考参考信号,且当前发送可用波束对应的RS数量小于等于K个;当前发送所用波束的RS属于被RRC信令配置、且被MAC CE激活或更新的路损计算参考参考信号,且当前发送可用波束对应的RS数量与RRC信令配置的路损计算参考参考信号的数量之和小于等于K个。
- 根据权利要求17所述的方法,其特征在于,K等于4。
- 根据权利要求2-18中任一项所述的方法,其特征在于,PUCCH、PUSCH和SRS均未被配置所述路损计算参考参考信号。
- 根据权利要求2-18中任一项所述的方法,其特征在于,在未配置目标对象的功率控制参数中目标参数的情况下,按照历史配置和/或协议约定确定所述目标对象的目标参数包括:在波束对应beam correspondence场景中,未配置目标对象的功率控制参数中目标参数的情况下,按照历史配置和/或协议约定确定所述目标参数。
- 根据权利要求1所述的方法,其特征在于,所述目标参数包括目标接收功率、路损补偿因子和闭环功率控制其中至少之一时,所述按照历史配置信息和/或协议约定确定所述目标参数包括:目标PUCCH的目标参数与目标时刻对应的PUCCH的所述目标参数相同;目标PUSCH的目标参数与目标时刻对应的PUSCH的所述目标参数相同;或者,目标SRS与目标时刻对应的SRS的所述目标参数相同;其中,所述目标时刻位于初始接入之后,RRC配置之前。
- 根据权利要求1所述的方法,其特征在于,所述目标参数包括闭环功率控制时,所述闭环功率控制的取值为0。
- 根据权利要求1所述的方法,其特征在于,所述目标参数包括路损补偿因子时,所述路损补偿因子的取值为1。
- 一种终端,其特征在于,包括:确定模块,用于在未配置目标对象的功率控制参数中目标参数的情况下,按照以下任一种方式确定所述目标对象的目标参数:根据网络设备配置的其他对象的目标参数确定所述目标对象的目标参数,所述其他对象不同于所述目标对象;按照历史配置确定所述目标对象的目标参数;按照协议约定确定所述目标对象的目标参数;其中,所述目标对象和所述其他对象选自物理上行控制信道PUCCH、物理上行共享信道PUSCH和探测参考信号SRS;所述目标参数包括路损计算参考参考信号、目标接收功率、路损补偿因子和闭环功率控制其中至少一项。
- 根据权利要求24所述的终端,其特征在于,所述目标参数包括所述路损计算参考参考信号时,按照历史配置和/或协议约定确定所述目标对象的目标参数包括:将历史配置的下行参考信号RS中的第一RS确定为所述路损计算参考参考信号。
- 根据权利要求25所述的终端,其特征在于,所述第一RS为以下任一种:所述目标对象关联的准共址QCL信息中的下行RS;用于确定当前资源对应的发射波束的多个RS中的第五RS;终端所在的SSB;当前发送所用波束的RS;目标物理下行控制信道PDCCH的QCL信息中的下行RS,所述目标PDCCH为调度所述目标对象的PDCCH;最近一次物理随机接入信道PRACH关联的下行RS;随机接入响应RAR对应的PRACH关联的下行RS,所述随机接入响应RAR用于调度所述目标对象。
- 根据权利要求26所述的终端,其特征在于,所述目标对象位于第一载波,所述目标对象关联的准共址QCL信息中的下行RS包括以下任一种:所述第一载波配置控制资源集CORESET的情况下,第一CORESET的QCL信息中的下行RS,所述第一CORESET为所述第一载波配置的CORESET其中之一;在所述第一载波未配置CORESET,且所述第一载波的激活带宽部分BWP配置了用于PDSCH的M个传输配置指示TCI的情况下,第一TCI中的下行RS,所述第一TCI为所述M个TCI其中之一,所述M个TCI处于激活状态,M为正整数;在所述第一载波未配置CORESET,且第一载波的激活BWP没有配置处于激活状态的TCI的情况下,第二载波的第一BWP的第三RS,所述第二载波与所述第一载波不同;在所述第一载波未配置CORESET的情况下,第二载波的第一BWP的第 三RS,所述第二载波与所述第一载波不同。
- 根据权利要求27所述的终端,其特征在于,所述第一CORESET包括以下任一种:所述第一载波最近时刻配置的CORESET;所述第一载波配置的CORESET中标识号为0的CORESET。
- 根据权利要求28所述的终端,其特征在于,所述第一载波最近时刻配置的CORESET包括:所述第一载波最近时刻配置的CORESET中最低标识号或者最高标识号的CORESET。
- 根据权利要求27所述的终端,其特征在于,所述第一CORESET的QCL信息中的下行RS包括:N1个下行RS中的第二RS,N1为正整数,所述N1个下行RS与所述第一载波激活的BWP配置的CORESET关联。
- 根据权利要求30所述的终端,其特征在于,所述第二RS包括以下任一种:最低标识号或者最高标识号的RS;当所述下行RS包括SSB和CSI-RS的情况下,最低标识号或者最高标识号的SSB,其中,SSB的优先级大于CSI-RS;当所述下行RS包括SSB和CSI-RS的情况下,最低标识号或者最高标识号的CSI-RS,其中,SSB的优先级小于CSI-RS;在所述N1个下行RS中任意选择的一个RS。
- 根据权利要求27所述的终端,其特征在于,所述第一TCI为所述M个TCI中最低标识号或者最高标识号的TCI。
- 一种终端,其特征在于,包括: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程序,所述程序被所述处理器执行时实现如权利要求1至23中任一项所述的功率控制参数确定方法中的步骤。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至23中任一项所述的功率控制参数确定方法的步骤。
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EP20877151.9A EP4047994A4 (en) | 2019-10-18 | 2020-10-16 | METHOD OF DETERMINING A PERFORMANCE CONTROL PARAMETER AND TERMINAL |
BR112022007222A BR112022007222A2 (pt) | 2019-10-18 | 2020-10-16 | Método para determinar parâmetro de controle de potência e terminal. |
KR1020227016250A KR20220084117A (ko) | 2019-10-18 | 2020-10-16 | 파워 컨트롤 파라미터 결정 방법 및 단말기 |
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US20220240178A1 (en) | 2022-07-28 |
CN112689321B (zh) | 2022-08-05 |
BR112022007222A2 (pt) | 2022-07-05 |
JP2022552865A (ja) | 2022-12-20 |
EP4047994A4 (en) | 2022-12-14 |
JP7330378B2 (ja) | 2023-08-21 |
CN112689321A (zh) | 2021-04-20 |
KR20220084117A (ko) | 2022-06-21 |
EP4047994A1 (en) | 2022-08-24 |
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