CN113677029A - Uplink signal transmission method, device and terminal - Google Patents
Uplink signal transmission method, device and terminal Download PDFInfo
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- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H04B17/327—Received signal code power [RSCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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Abstract
The application discloses an uplink signal transmission method, an uplink signal transmission device and a terminal, and belongs to the technical field of communication; the method comprises the following steps: under the condition that a gap between a first uplink symbol for transmitting a first uplink signal and a second uplink symbol for transmitting a second uplink signal is less than or equal to the duration of a guard interval GP, transmitting the first uplink signal at zero power; or, the first uplink signal is transmitted with the power of the second uplink signal; or, the second uplink signal is sent through the first antenna port group; the first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP; the first uplink signal is a channel Sounding Reference Signal (SRS); the second uplink signal is an uplink signal other than the SRS.
Description
Technical Field
The present application belongs to the field of communications technologies, and in particular, to a method, an apparatus, and a terminal for uplink signal transmission.
Background
In a channel Sounding Reference Signal (SRS) antenna transmission technology (i.e., SRS is transmitted in a round-robin manner through a plurality of antenna ports), when a Signal is transmitted, an antenna port for transmitting an uplink Signal is switched, that is, a state of an antenna switch between the antenna port and a radio frequency channel is changed. In order to ensure the communication performance and the power consumption loss before and after the switching of the antenna ports, the switching between the antenna ports requires an interval time of at least a certain time duration, for example, the interval time is a preset fixed time duration. In addition, even though the SRS and other uplink signals adopt the same port, because different channel types adopt independent power control flows, and important parameters of partial power control are also independent, the phenomenon of power shear exists. In this case, an interval of at least a certain duration is also required between the SRS and other uplink signals. Since in the uplink scheduling of the actual network, if the switching time between the antenna ports is less than the interval time, the actual scheduling may have a problem that the transmission performance is affected due to the insufficient interval time.
Disclosure of Invention
An object of the embodiments of the present application is to provide an uplink signal transmission method, an uplink signal transmission device, and a terminal, which can solve a problem that transmission performance may be affected by configuration of an interval time for switching between antenna ports at present.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an uplink signal transmission method, which is applied to a terminal, and the method includes:
transmitting a first uplink signal (or referred to as UE) with zero power in case that a gap between a first uplink symbol transmitting the first uplink signal and a second uplink symbol transmitting the second uplink signal is less than or equal to a duration of a Guard Period (GP); or, the first uplink signal is transmitted with the power of the second uplink signal; or, the second uplink signal is sent through the first antenna port group;
the first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP; the first uplink signal is an SRS; the second uplink signal is an uplink signal other than the SRS.
In a second aspect, an embodiment of the present application provides an uplink signal transmission apparatus, including:
the device comprises a sending module, a receiving module and a transmitting module, wherein the sending module is used for sending a first uplink signal at zero power under the condition that a gap between a first uplink symbol for sending the first uplink signal and a second uplink symbol for sending a second uplink signal is less than or equal to the time length of GP; or, the first uplink signal is transmitted with the power of the second uplink signal; or, the second uplink signal is sent through the first antenna port group;
the first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP; the first uplink signal is an SRS; the second uplink signal is an uplink signal other than the SRS.
In a third aspect, an embodiment of the present application provides a terminal, where the terminal includes a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, and the program or the instruction, when executed by the processor, implements the steps of the uplink signal transmission method according to the first aspect.
In a fourth aspect, an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and the program or the instruction, when executed by a processor, implements the steps of the uplink signal transmission method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the steps of the uplink signal transmission method according to the first aspect.
In the embodiment of the present application, when a gap between a first uplink symbol for transmitting a first uplink signal and a second uplink symbol for transmitting a second uplink signal is less than or equal to a duration of GP, the first uplink signal is transmitted at zero power, or the first uplink signal is transmitted at power of the second uplink signal, so as to reduce a minimum interval required for antenna port switching and power shearing, thereby improving transmission performance; or, the second uplink signal is sent through a first antenna port group different from the antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP, so as to improve the transmission performance, thereby solving the problem that the configuration of the interval time for switching between the antenna ports at present may affect the transmission performance.
Drawings
Fig. 1 is a flowchart of an uplink signal transmission method according to an embodiment of the present application;
fig. 2 is one of schematic time domain resource configurations of an SRS and a PUSCH and/or PUCCH according to an embodiment of the present application;
fig. 3 is a second schematic diagram of time domain resource configurations of an SRS and a PUSCH and/or PUCCH according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an antenna switch state according to an embodiment of the present application;
fig. 5 is a block diagram of an uplink signal transmission apparatus according to an embodiment of the present application;
fig. 6 is a block diagram of a terminal of an embodiment of the present application;
fig. 7 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The uplink signal transmission method, apparatus and terminal provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 1, an embodiment of the present application provides an uplink signal transmission method, which is applied to a terminal, and the method includes:
step 11: under the condition that a gap between a first uplink symbol for transmitting a first uplink signal and a second uplink symbol for transmitting a second uplink signal is less than or equal to the duration of GP, transmitting the first uplink signal with zero power; or, the first uplink signal is transmitted with the power of the second uplink signal; or, the second uplink signal is sent through the first antenna port group.
The first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP; the first uplink signal is an SRS; the second uplink signal is an uplink signal other than the SRS.
The second antenna port group is an antenna port group when the second uplink signal is sent when the gap is not satisfied for a duration less than or equal to the GP, and is not limited to the terminal sending the second uplink signal through the second antenna port group only when the gap is not satisfied for a duration less than or equal to the GP. For example: and the terminal may also send the second uplink signal through the second antenna port group, when the gap is less than or equal to the duration of the GP, and the terminal sends the first uplink signal with zero power, or sends the first uplink signal with the power of the second uplink signal.
It should be noted that the first uplink signal and the second uplink signal are initial signals that are transformed into a time domain through Fast inverse Fourier Transform (IFFT) based on a frequency domain sequence or a frequency domain result obtained by performing Discrete Fourier Transform-Spread OFDM (DFT-s-OFDM) or cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) modulation on the basis of information bits, that is, neither the first uplink signal nor the second uplink signal includes a cyclic prefix.
For example: a terminal (or called UE) transmits SRS according to network configuration; if and only if a gap (gap) between a first uplink symbol for transmitting the SRS and a second uplink symbol for transmitting uplink signals other than the SRS is less than or equal to GP, the terminal may transmit the SRS at zero power, or may transmit the SRS at power of the second uplink signal, or the terminal may transmit the second uplink signal using the first antenna port group.
The first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the terminal sends the second uplink signal when the gap is not longer than or equal to the duration of the GP. Optionally, the first antenna port group may include one or more antenna ports, and the second antenna port group may include one or more antenna ports.
Optionally, the duration of the GP is 15 microseconds; or the time length of the GP is 10 microseconds; alternatively, the duration of the GP is the duration of a Cyclic Prefix (CP). Wherein the duration of the CP is related to a subcarrier interval configured by a network. Alternatively, zero Power refers to a state where the transmission Power of the terminal is at a minimum value, and the terminal may transmit a signal without using a Power Amplifier (PA). That is, the terminal transmits the first uplink signal with zero power means that the terminal transmits the first uplink signal in a state where the transmission power is at a minimum value.
Optionally, the first uplink signal may include an SRS for antenna transmission, which is mainly used to obtain downlink channel quality. The uplink signal may also include an SRS for determining uplink quality.
Among the SRS resources used for different antennas to transmit in turn, X (X is a positive integer) Orthogonal Frequency Division Multiplexing (OFDM) symbols may be introduced as guard intervals. In addition, for uplink transmission after the SRS, that is, sending a second uplink signal, and no matter whether the antenna port group used for the uplink transmission is consistent with the antenna port group used for the SRS, a GP (for example, GP may be 10us or 15us) may be set, and the GP may be used as an interval required for antenna switching and power shearing. The power shear refers to a situation that two adjacent uplink signals have a change of more than 3dB according to a power value determined by network configuration and scheduling signaling. The uplink signals are adjacent, that is, no other uplink signal or downlink signal except for the guard interval exists between two uplink signals.
In the embodiment of the present application, when a gap between a first uplink symbol for transmitting a first uplink signal and a second uplink symbol for transmitting a second uplink signal is less than or equal to a duration of GP, the first uplink signal is transmitted at zero power, or the first uplink signal is transmitted at power of the second uplink signal, so as to reduce a minimum interval required for antenna switching and power shearing, thereby improving transmission performance; or the second uplink signal is sent through the first antenna port group different from the antenna port group when the second uplink signal is sent under the condition that the time length of the GP is not met and is less than or equal to the time length of the GP, so that the transmission performance is improved, and the problem that the transmission performance is possibly influenced by the configuration of the interval time for switching between the antenna ports at present is solved.
In addition, the embodiment of the application can avoid abnormal states (such as power consumption increase and the like) which may occur to the terminal when the antenna switching interval configured by the network is less than or equal to the guard interval under the condition of not modifying the protocol, and is favorable for reducing the influence on the communication quality.
Optionally, the second uplink signal includes at least one of: a signal on a Physical Uplink Shared Channel (PUSCH); a signal on a Physical Uplink Control Channel (PUCCH).
Optionally, the step of sending the first uplink signal with zero power, or sending the first uplink signal with power of the second uplink signal, or sending the second uplink signal through a first antenna port group may include:
and according to the transmission state, determining to send the first uplink signal at zero power, or send the first uplink signal at the power of the second uplink signal, or send the second uplink signal through a first antenna port group.
Wherein the transmission state may include: the uplink transmission is mainly performed, and the downlink transmission is mainly performed.
Optionally, the terminal may further determine to send the first uplink signal with zero power, or send the first uplink signal with the power of the second uplink signal, or send the second uplink signal through the first antenna port group according to network configuration, which is not limited in this embodiment of the present application.
Optionally, the step of determining to send the first uplink signal with zero power, or send the first uplink signal with the power of the second uplink signal, or send the second uplink signal through the first antenna port group according to the transmission status may include:
and determining to transmit the first uplink signal at zero power or transmit the first uplink signal at the power of the second uplink signal when the transmission state is mainly downlink transmission.
For example: and under the condition that the transmission state is mainly downlink transmission, the terminal can send the first uplink signal at zero power through a first antenna port group, or send the first uplink signal at zero power through a second antenna port group, or send the first uplink signal at the power of the second uplink signal through the first antenna port group, or send the first uplink signal at the power of the second uplink signal through the second antenna port group.
And determining to transmit the second uplink signal through the first antenna port group or to transmit the first uplink signal through the second antenna port group at the power of the second uplink signal when the transmission state is mainly uplink transmission.
Wherein the uplink transmission is mainly as follows: the data volume of the network to be uploaded by the application layer is larger than a first threshold, or the uplink transmission power reaches the maximum transmission power of the terminal; the downlink transmission mainly comprises the following steps: and the data volume of the network to be uploaded by the application layer is smaller than a second threshold, and the uplink transmission power does not reach the maximum transmission power of the terminal.
Optionally, the first threshold may be greater than the second threshold, for example, when a gap between a first uplink symbol of the first uplink signal transmitted through the first antenna port group and a second uplink symbol of the second uplink signal transmitted through the second antenna port group is less than or equal to a duration of GP: if the transmission state is neither the uplink transmission or the downlink transmission, the terminal may adopt one of the first uplink signal sent by the first antenna port group at zero power, the first uplink signal sent by the first antenna port group at the power of the second uplink signal, and the second uplink signal sent by the first antenna port group, or another scheme, which is not specifically limited in this application.
For example: when uplink transmission mainly feeds back acknowledgement/negative acknowledgement (ACK/NACK) information or necessary signaling of each layer, and uplink transmission power does not reach the maximum uplink power that can be sent by the terminal, that is, the current transmission state of the terminal is mainly downlink transmission or mainly waiting for scheduling, the terminal determines to send the second uplink signal through the first antenna port group; when the amount of data to be uploaded is greater than a first threshold (for example, a large amount of data exists in a buffer of an application layer and needs to be uploaded) or the uplink transmission power has reached the maximum uplink power that can be sent by the terminal, that is, when the current transmission state of the terminal is mainly uplink transmission, the terminal determines to send the first uplink signal with zero power through the first antenna port group or send the first uplink signal with the power of the second uplink signal through the first antenna port group. It should be noted that, here, the uplink transmission power refers to the maximum power of PUSCH and/or PUCCH transmission.
Optionally, the step of sending the second uplink signal through the first antenna port group may include:
transmitting a second uplink signal corresponding to a first uplink channel through the first antenna port group;
wherein the first uplink channel is an uplink channel between the first uplink symbol and a third symbol; the third symbol is a symbol closest to the first uplink symbol without uplink transmission, and the third symbol is not adjacent to the first uplink symbol.
Optionally, the first uplink channel may be at least one of a PUCCH and a PUSCH.
Optionally, when the terminal sends the second uplink Signal through the first antenna port group, the terminal compensates the sending Power for sending the second uplink Signal according to Reference Signal Received Power (RSRP) measured in a downlink.
In this embodiment, when the terminal sends the second uplink signal through the first antenna port group, the power of the terminal sending the second uplink signal may perform power compensation according to an RSRP result of downlink measurement, so as to ensure uplink sending performance.
The above method of the present application is illustrated below with reference to specific examples:
the first embodiment is as follows:
as shown in fig. 2, antenna port y (referred to as a non-primary antenna port) transmits SRS and antenna port x (referred to as a primary antenna port) transmits PUSCH and/or PUCCH. When the UE finds that the gap between the uplink symbol configured by the network to transmit the SRS and the uplink symbol configured by the network to transmit the PUSCH and/or PUCCH is smaller than or equal to the guard interval, and a signal on the PUSCH and/or PUCCH needs to be transmitted (i.e., the power is not zero), the UE selects to transmit the SRS on the antenna port y with zero power or with the transmission power of the signal on the PUSCH and/or PUCCH. And when no signal needs to be transmitted in the PUSCH and/or PUCCH, the UE selects to transmit the SRS on the antenna port y according to the normal power.
Optionally, the duration of the GP is 15 microseconds; or the time length of the GP is 10 microseconds; in other words, the duration of the GP is the duration of the CP. Wherein the duration of the CP is related to a subcarrier interval configured by a network.
The specific operation steps of the UE side are as follows:
step 1: the method comprises the steps that UE receives Radio Resource Control (RRC) parameter configuration of network equipment in a connection state, and determines SRS Resource configuration and PUSCH and/or PUCCH Resource configuration;
step 2: the method comprises the steps that UE receives Downlink Control Information (DCI) issued by network equipment, and determines scheduling Information and power Information of a PUSCH and/or a PUCCH; the scheduling Information of the PUSCH is determined by scheduling of uplink scheduling grant in the DCI, and the scheduling Information of the PUCCH is determined by ACK/NACK corresponding to downlink scheduling grant and/or Channel State Information (CSI) feedback time slot;
and step 3: and the UE receives the DCI issued by the network equipment, and further determines the power information of the PUSCH and/or PUCCH and the power information of the SRS according to the RRC parameter configuration determined in the step 1.
And 4, step 4: the UE judges whether the following condition (c) exists when the network configuration meets the following conditions (a) and (b); if yes, executing step 5, otherwise executing step 6:
(a) the uplink symbol 1 is used for transmitting an SRS configured by antenna transmission in turn, and at this time, an antenna port y is used;
(b) uplink symbol 2 is used to send PUSCH and/or PUCCH, and at this time, antenna port x is used;
(c) the interval between the uplink symbol 1 and the uplink symbol 2 is less than or equal to the guard interval;
and 5: when the UE transmits the SRS on the uplink symbol 1, the power is the same as the power for transmitting the signal on the PUSCH, or the power is 0.
Step 6: when the UE transmits the SRS on uplink symbol 1, the UE transmits the SRS at normal power.
Optionally, the duration of the guard interval may be 15us or 10us, or the duration of the guard interval is the CP duration in the current subcarrier interval.
Alternatively, when the UE is configured as 2T4R (i.e., supporting two-antenna transmit signals and four-antenna receive signals), the primary antenna ports may include 2 ports normally used for transmitting PUSCH and/or PUCCH, and the non-primary antenna ports may include the remaining 2 antenna ports.
Example two:
as shown in fig. 3, antenna port y (referred to as a non-primary antenna port) transmits SRS and antenna port x (referred to as a primary antenna port) transmits PUSCH and/or PUCCH. When the UE finds that the gap between the uplink symbol for transmitting SRS and the uplink symbol for transmitting PUSCH and/or PUCCH configured by the network is smaller than or equal to the guard interval, and there is a signal to transmit on PUSCH and/or PUCCH (i.e., the power is not zero), the UE selects to transmit the second uplink signal corresponding to the first uplink channel using the first antenna port group, i.e., PUSCH and/or PUCCH is also transmitted on antenna port y, and for all other PUSCHs and/or PUCCHs, it is still transmitted on antenna port x.
Optionally, the duration of the GP is 15 microseconds; or the time length of the GP is 10 microseconds; in other words, the duration of the GP is the duration of the CP. Wherein, the duration of the CP is related to the subcarrier interval configured by the network side.
Optionally, the first uplink channel is an uplink channel between an uplink symbol for transmitting an SRS and a third symbol; the third symbol is a symbol that is closest to the uplink symbol from which the SRS is transmitted and has no uplink transmission, and the third symbol is not adjacent to the uplink symbol from which the SRS is transmitted.
Wherein the first uplink channel may be a PUCCH and/or a PUSCH. The no uplink transmission refers to no transmission or for downlink transmission.
Alternatively, when the UE is configured as 2T4R, the primary antenna ports may contain 2 ports normally used for transmitting PUSCH and PUCCH, and the non-primary antenna ports may include the remaining 2 antenna ports.
Alternatively, the UE may change the antenna port for transmitting the PUSCH and/or PUCCH by changing the antenna switch state, and the UE may switch to transmit the PUSCH and/or PUCCH through the antenna port y by changing the antenna switch state. As shown in fig. 4, 2T4R is: when the state of the switch 1 is 0 and the state of the switch 2 is 0, the antenna ports 0 and 1 are main antenna ports; when the state of the switch 1 is 1 and the state of the switch 2 is 1, the antenna ports 2 and 3 are main antenna ports; when the state of the switch 1 is 1 and the state of the switch 2 is 0, the antenna ports 1 and 2 are main antenna ports.
When the PUSCH and/or PUCCH is transmitted on the non-primary antenna port (i.e., antenna port y), since the received RSRP corresponding to the used antenna port is not consistent with that of the primary antenna port (i.e., antenna port x), it is necessary to compensate the corresponding transmission power in the calculation of the transmission power, i.e., calculate the uplink transmission power by using the RSRP of the non-primary antenna port, so as to ensure the transmission performance.
The specific operation steps of the UE side are as follows:
step 1: the method comprises the steps that UE receives RRC parameter configuration of network equipment in a connection state, and determines SRS resource configuration and PUSCH and/or PUCCH resource configuration;
step 2: the UE receives DCI issued by the network equipment and determines the scheduling information and the power information of the PUSCH and/or the PUCCH; the scheduling information of the PUSCH is determined by scheduling of uplink scheduling authorization in DCI, and the scheduling information of the PUCCH is determined by ACK/NACK corresponding to downlink scheduling authorization and/or CSI feedback time slot;
and step 3: and the UE receives the DCI issued by the network equipment, and further determines the power information of the PUSCH and/or PUCCH and the power information of the SRS according to the RRC parameter configuration determined in the step 1.
And 4, step 4: the UE judges whether the following condition (c) exists when the configuration of the network equipment meets the following conditions (a) and (b); if yes, executing step 5, otherwise executing step 6:
(a) the uplink symbol 1 is used for transmitting an SRS configured by antenna transmission in turn, and at this time, an antenna port y is used;
(b) uplink symbol 2 is used to send PUSCH and/or PUCCH, and at this time, antenna port x is used;
(c) the interval between the uplink symbol 1 and the uplink symbol 2 is less than or equal to the guard interval;
and 5: the UE sends PUSCH and/or PUCCH on an antenna port y;
step 6: the UE transmits PUSCH and/or PUCCH on antenna port x.
Optionally, the duration of the guard interval may be 15us or 10us, or the duration of the guard interval is the CP duration in the current subcarrier interval.
Example three:
as shown in fig. 3, antenna port x (referred to as a non-primary antenna port) transmits SRS, and antenna port x (referred to as a primary antenna port) transmits PUSCH and/or PUCCH. When the UE finds that gap between the uplink symbol which is configured by the network and used for transmitting the SRS and the uplink symbol for transmitting the PUSCH and/or PUCCH is smaller than or equal to the guard interval, and the PUSCH and/or PUCCH has a signal to be transmitted (namely, the power is not zero), the UE selects to transmit the first uplink signal by using the power for transmitting the second uplink signal, namely, the power for transmitting the PUSCH/PUCCH is used for transmitting the SRS.
Optionally, the duration of the GP is 15 microseconds; or the time length of the GP is 10 microseconds; in other words, the duration of the GP is the duration of the CP. Wherein, the duration of the CP is related to the subcarrier interval configured by the network side.
The specific operation steps of the UE side are as follows:
step 1: the method comprises the steps that UE receives RRC parameter configuration of network equipment in a connection state, and determines SRS resource configuration and PUSCH and/or PUCCH resource configuration;
step 2: the UE receives DCI issued by the network equipment and determines the scheduling information and the power information of the PUSCH and/or the PUCCH; the scheduling information of the PUSCH is determined by scheduling of uplink scheduling authorization in DCI, and the scheduling information of the PUCCH is determined by ACK/NACK corresponding to downlink scheduling authorization and/or CSI feedback time slot;
and step 3: and the UE receives the DCI issued by the network equipment, and further determines the power information of the PUSCH and/or PUCCH and the power information of the SRS according to the RRC parameter configuration determined in the step 1.
And 4, step 4: the UE judges whether the following condition (c) exists when the network configuration meets the following conditions (a) and (b); if yes, executing step 5, otherwise executing step 6:
(a) uplink symbol 1 is used to transmit SRS, and at this time, antenna port x is used;
(b) uplink symbol 2 is used to send PUSCH and/or PUCCH, and at this time, antenna port x is used;
(c) the interval between the uplink symbol 1 and the uplink symbol 2 is less than or equal to the guard interval;
and 5: the UE uses the power of PUSCH or PUCCH when sending SRS on an antenna port x;
step 6: the UE uses the SRS power when transmitting the SRS on antenna port x.
Optionally, the duration of the guard interval may be 15us or 10us, or the duration of the guard interval is the CP duration in the current subcarrier interval.
It should be noted that, in the uplink signal transmission method provided in the embodiment of the present application, the execution main body may be an uplink signal transmission device, or a control module used for executing the uplink signal transmission method in the uplink signal transmission device. In the embodiment of the present application, an uplink signal transmission apparatus for performing an uplink signal transmission method is taken as an example, and the uplink signal transmission apparatus provided in the embodiment of the present application is described.
As shown in fig. 5, an uplink signal transmission apparatus 500 according to an embodiment of the present application includes:
a sending module 510, configured to send a first uplink signal at zero power when a gap between a first uplink symbol that sends the first uplink signal and a second uplink symbol that sends the second uplink signal is less than or equal to a duration of a guard interval GP; or, the first uplink signal is transmitted with the power of the second uplink signal; or, the second uplink signal is sent through the first antenna port group;
the first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP; the first uplink signal is a channel Sounding Reference Signal (SRS); the second uplink signal is an uplink signal other than the SRS.
Optionally, the duration of the GP is 15 microseconds; alternatively, the first and second electrodes may be,
the time length of the GP is 10 microseconds; alternatively, the first and second electrodes may be,
the duration of the GP is the duration of the cyclic prefix CP.
Optionally, the second uplink signal includes at least one of:
a signal on a physical uplink shared channel, PUSCH;
a signal on a physical uplink control channel, PUCCH.
Optionally, the sending module 510 is further configured to:
and according to the transmission state, determining to send the first uplink signal at zero power, or send the first uplink signal at the power of the second uplink signal, or send the second uplink signal through a first antenna port group.
Optionally, the uplink signal transmission apparatus 500 is applied to a terminal.
Optionally, the sending module 510 includes:
a first sending unit, configured to determine to send the first uplink signal at zero power or send the first uplink signal at power of the second uplink signal when the transmission status is mainly downlink transmission;
a second sending unit, configured to determine to send the second uplink signal through the first antenna port group or send the first uplink signal with power of the second uplink signal through the second antenna port group when the transmission state is mainly uplink transmission;
wherein the uplink transmission is mainly as follows: the data volume of the network to be uploaded by the application layer is larger than a first threshold, or the uplink transmission power reaches the maximum transmission power of the terminal; the downlink transmission mainly comprises the following steps: and the data volume of the network to be uploaded by the application layer is smaller than a second threshold, and the uplink transmission power does not reach the maximum transmission power of the terminal.
Optionally, the sending module includes:
a third transmitting unit, configured to transmit a second uplink signal corresponding to the first uplink channel through the first antenna port group;
wherein the first uplink channel is an uplink channel between the first uplink symbol and a third symbol; the third symbol is a symbol closest to the first uplink symbol without uplink transmission, and the third symbol is not adjacent to the first uplink symbol.
Optionally, the uplink signal transmission apparatus 500 further includes:
and the processing module is used for compensating the sending power for sending the second uplink signal according to the Reference Signal Received Power (RSRP) measured in the downlink under the condition that the second uplink signal is sent through the first antenna port group.
The uplink signal transmission device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
The uplink signal transmission device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The uplink signal transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 1 to fig. 4, and is not described here again to avoid repetition.
In the uplink signal transmission apparatus 500 in this embodiment, when a gap between a first uplink symbol that transmits a first uplink signal and a second uplink symbol that transmits a second uplink signal is less than or equal to a duration of GP, the first uplink signal is transmitted with zero power, or the first uplink signal is transmitted with power of the second uplink signal, so as to reduce a minimum interval required for power shear, thereby improving transmission performance; or the second uplink signal is sent through the first antenna port group different from the antenna port group when the second uplink signal is sent under the condition that the time length of the GP is not met and is less than or equal to the time length of the GP, so that the transmission performance is improved, and the problem that the transmission performance is possibly influenced by the configuration of the interval time for switching between the antenna ports at present is solved.
Optionally, as shown in fig. 6, an embodiment of the present application further provides a terminal 600, which includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and executable on the processor 601, where the program or the instruction is executed by the processor 601 to implement each process of the foregoing uplink signal transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
It should be noted that the terminal in the embodiment of the present application includes the mobile terminal and the non-mobile terminal described above.
Fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.
The terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710. The radio frequency unit 701 may include a first antenna port group and a second antenna port group.
Those skilled in the art will appreciate that the terminal 700 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 710 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.
Wherein, the processor 710 is configured to, in a case that a gap between a first uplink symbol for transmitting the first uplink signal and a second uplink symbol for transmitting the second uplink signal is less than or equal to a duration of the guard interval GP: transmitting the first uplink signal with zero power; or, the first uplink signal is transmitted with the power of the second uplink signal; or, the second uplink signal is sent through the first antenna port group;
the first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP; the first uplink signal is a channel Sounding Reference Signal (SRS); the second uplink signal is an uplink signal other than the SRS.
Optionally, the duration of the GP is 15 microseconds; alternatively, the first and second electrodes may be,
the time length of the GP is 10 microseconds; alternatively, the first and second electrodes may be,
the duration of the GP is the duration of the cyclic prefix CP.
Optionally, the second uplink signal includes at least one of:
a signal on a physical uplink shared channel, PUSCH;
a signal on a physical uplink control channel, PUCCH.
Optionally, the processor 710 is further configured to determine, according to the transmission status, to send the first uplink signal with zero power, or to send the first uplink signal with the power of the second uplink signal, or to send the second uplink signal through the first antenna port group.
Optionally, the processor 710 is further configured to determine to send the first uplink signal at zero power or send the first uplink signal at the power of the second uplink signal, when the transmission status is mainly downlink transmission;
determining to transmit the second uplink signal through the first antenna port group or to transmit the first uplink signal through the second antenna port group at the power of the second uplink signal, when the transmission state is mainly uplink transmission;
wherein the uplink transmission is mainly as follows: the data volume of the network to be uploaded by the application layer is larger than a first threshold, or the uplink transmission power reaches the maximum transmission power of the terminal; the downlink transmission mainly comprises the following steps: and the data volume of the network to be uploaded by the application layer is smaller than a second threshold, and the uplink transmission power does not reach the maximum transmission power of the terminal.
Optionally, the processor 710 is further configured to send a second uplink signal corresponding to a first uplink channel through the first antenna port group;
wherein the first uplink channel is an uplink channel between the first uplink symbol and a third symbol; the third symbol is a symbol closest to the first uplink symbol without uplink transmission, and the third symbol is not adjacent to the first uplink symbol.
Optionally, the processor 710 is further configured to, when the second uplink signal is sent through the first antenna port group, compensate for sending power for sending the second uplink signal according to reference signal received power RSRP measured in a downlink.
In the terminal 700 in this embodiment, when a gap between a first uplink symbol for transmitting a first uplink signal and a second uplink symbol for transmitting a second uplink signal is less than or equal to a duration of GP, the first uplink signal is transmitted at zero power, or the first uplink signal is transmitted at power of the second uplink signal through the first antenna port group, so as to reduce a minimum interval required for antenna switching and power shearing, thereby improving transmission performance; or the second uplink signal is sent through the first antenna port group different from the antenna port group when the second uplink signal is sent under the condition that the time length of the GP is not met and is less than or equal to the time length of the GP, so that the transmission performance is improved, and the problem that the transmission performance is possibly influenced by the configuration of the interval time for switching between the antenna ports at present is solved.
It should be understood that in the embodiment of the present application, the input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics Processing Unit 7041 processes image data of still pictures or videos obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts of a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. Memory 709 may be used to store software programs as well as various data, including but not limited to applications and operating systems. Processor 710 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.
An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing uplink signal transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the uplink signal transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An uplink signal transmission method applied to a terminal is characterized by comprising the following steps:
under the condition that a gap between a first uplink symbol for transmitting a first uplink signal and a second uplink symbol for transmitting a second uplink signal is less than or equal to the duration of a guard interval GP, transmitting the first uplink signal at zero power; or, the first uplink signal is transmitted with the power of the second uplink signal; or, the second uplink signal is sent through the first antenna port group;
the first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP; the first uplink signal is a channel Sounding Reference Signal (SRS); the second uplink signal is an uplink signal other than the SRS.
2. The uplink signal transmission method according to claim 1,
the length of the GP is 15 microseconds; alternatively, the first and second electrodes may be,
the time length of the GP is 10 microseconds; alternatively, the first and second electrodes may be,
the duration of the GP is the duration of the cyclic prefix CP.
3. The uplink signal transmission method of claim 1, wherein the second uplink signal comprises at least one of:
a signal on a physical uplink shared channel, PUSCH;
a signal on a physical uplink control channel, PUCCH.
4. The uplink signal transmission method according to claim 1, wherein the transmitting the first uplink signal with zero power, or transmitting the first uplink signal with the power of the second uplink signal, or transmitting the second uplink signal through a first antenna port group, includes:
and according to the transmission state, determining to send the first uplink signal at zero power, or send the first uplink signal at the power of the second uplink signal, or send the second uplink signal through a first antenna port group.
5. The uplink signal transmission method according to claim 4, wherein the determining, according to the transmission status, to transmit the first uplink signal at zero power, or to transmit the first uplink signal at the power of the second uplink signal, or to transmit the second uplink signal through the first antenna port group includes:
determining to transmit the first uplink signal at zero power or to transmit the first uplink signal at the power of the second uplink signal when the transmission state is mainly downlink transmission;
determining to transmit the second uplink signal through the first antenna port group or to transmit the first uplink signal through the second antenna port group at the power of the second uplink signal, when the transmission state is mainly uplink transmission;
wherein the uplink transmission is mainly as follows: the data volume of the network to be uploaded by the application layer is larger than a first threshold, or the uplink transmission power reaches the maximum transmission power of the terminal; the downlink transmission mainly comprises the following steps: and the data volume of the network to be uploaded by the application layer is smaller than a second threshold, and the uplink transmission power does not reach the maximum transmission power of the terminal.
6. The uplink signal transmission method according to claim 1, wherein the transmitting the second uplink signal through the first antenna port group includes:
transmitting a second uplink signal corresponding to a first uplink channel through the first antenna port group;
wherein the first uplink channel is an uplink channel between the first uplink symbol and a third symbol; the third symbol is a symbol closest to the first uplink symbol without uplink transmission, and the third symbol is not adjacent to the first uplink symbol.
7. The uplink signal transmission method according to claim 1, further comprising:
and compensating the sending power for sending the second uplink signal according to the Reference Signal Received Power (RSRP) measured in the downlink under the condition that the first antenna port group sends the second uplink signal.
8. An uplink signal transmission apparatus, comprising:
a sending module, configured to send a first uplink signal at zero power when a gap between a first uplink symbol that sends the first uplink signal and a second uplink symbol that sends the second uplink signal is less than or equal to a duration of a guard interval GP; or, the first uplink signal is transmitted with the power of the second uplink signal; or, the second uplink signal is sent through the first antenna port group;
the first antenna port group is different from a second antenna port group, and the second antenna port group is an antenna port group when the second uplink signal is sent under the condition that the time length of the gap is not longer than or equal to the GP; the first uplink signal is a channel Sounding Reference Signal (SRS); the second uplink signal is an uplink signal other than the SRS.
9. A terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the upstream signal transmission method according to any one of claims 1 to 7.
10. A readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the upstream signal transmission method according to any one of claims 1 to 7.
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