Method for signal transmission and apparatus thereof
A method for signal transmission and apparatus thereof are provided. Particularly, an uplink signal transmission method is provided, comprising: reporting parameters of signal transmission quality in a specific modulation mode; acquiring configuration parameters of an uplink physical channel and/or a physical signal; and transmitting an uplink signal according to the configuration parameters of the uplink physical channel and/or the physical signal.
1 . An uplink signal transmission method performed by a terminal, the method comprising:
reporting, to a base station, parameters for signal transmission quality of an uplink signal in a specific modulation mode;
acquiring, from the base station, configuration parameters of at least one of an uplink physical channel or a physical signal determined based on the reported parameters for the signal transmission quality; and
transmitting an uplink signal according to the configuration parameters of the at least one of the uplink physical channel or the physical signal,
wherein the parameters for the signal transmission quality include a first quality parameter and a second quality parameter,
wherein the first quality parameter indicates a capability to transmit a signal that does not satisfy a preset signal transmission quality requirement in the specific modulation mode, and
wherein the second quality parameter comprises one or more signal transmission quality levels that the terminal supports.
2 . The method of claim 1 , wherein the specific modulation mode is at least one of 256 quadrature amplitude modulation (QAM), 1024 QAM, amplitude-phase keying modulation or star-QAM.
3 . The method of claim 1 , wherein the parameters for the signal transmission quality further include at least one of:
a third quality parameter, comprising at least one of a time-frequency resource pattern indicator and a reference signal sequence indicator, and to indicate a reference signal type that the terminal can support; or
a fourth quality parameter, to indicate uplink power adjustment level(s) that the terminal supports; and
a fifth quality parameter, to indicate a signal transmission quality characteristic indicator of the signal transmitted by the terminal, wherein the signal transmission quality characteristic indicator represents a mathematical feature of a nonlinear characteristic of the signal and includes at least one of a model type indicator or a model parameter indicator of the nonlinear characteristic of the signal.
4 . The method of claim 3 , wherein the first quality parameter is represented by 1 bit.
5 . The method of claim 3 , wherein the reporting further comprises:
in case that the second quality parameter is included in the parameters for the signal transmission quality and a signal transmission quality level is reported, indicating the highest quality level, the lowest quality level, or a predetermined quality level that is achieved by the signal transmitted by the terminal; and
in case that a plurality of signal transmission quality levels are reported, indicating that the terminal supports each of the plurality of signal transmission quality levels.
6 . The method of claim 1 , wherein the configuration parameters include at least one of:
a signal transmission quality level indicator, to determine the signal transmission quality level required to be satisfied to transmit uplink signal;
a reference signal sequence indicator, to determine a sequence of a reference signal; a reference signal time-frequency resource pattern indicator; and
a power adjustment level indicator, to determine an uplink power adjustment level to calculate transmission power.
7 . The method of claim 6 , wherein the time-frequency resource pattern indicator represents a design of at least one of when there are one or more reference symbols in a transmission time slot or when one reference symbol occupies one or more frequency domain subcarriers, wherein the design comprises one of:
a plurality of adjacent reference symbols are located in a start position of the transmission time slot, frequency domain is continuous;
a plurality of adjacent reference symbols are located in the middle position of the transmission time slot, frequency domain is continuous;
a plurality of separate reference symbols are located in the start position and middle position of the transmission time slot, frequency domain is continuous;
a plurality of adjacent reference symbols are located in the start position of the transmission time slot, frequency domain is discrete;
a plurality of adjacent reference symbols are located in the middle position of the transmission time slot, frequency domain is discrete; and
a plurality of separate reference symbols are located in the start position and middle position of the transmission time slot, frequency domain is discrete.
8 . The method of claim 3 , wherein the reference signal sequence indicator represents a design of a reference signal sequence that makes the reference signal and data have similar signal transmission quality, wherein the design comprises at least one of: a power-boosted low-peak-to-average power ratio sequence, a zero-inserted low-peak-to-average power ratio sequence, a scrambled low-peak-to-average power ratio sequence, or a quadrature amplitude-modulated pseudo-random sequence.
9 . The method of claim 8 , wherein the scrambled low-peak-to-average power ratio sequence is generated using the following formula:
r
RS
(
n
)
=
r
_
u
,
v
(
n
)
*
(
1
-
2
c
(
n
)
)
,
or
r
RS
(
n
)
=
r
_
u
,
v
(
n
)
*
(
2
c
(
n
)
-
1
)
,
where r u,v (n) is the low-peak-to-average power ratio sequence, and c (n) is the scrambled sequence.
10 . The method of claim 3 , wherein the fourth quality parameter comprises a power adjustment level indicator, the power adjustment level indicator comprising at least one of a maximum transmission power adjustment level indicator, a power headroom (PH) adjustment level indicator, or a transmission power adjustment level indicator.
11 . The method of claim 1 , wherein the acquiring the configuration parameters of the uplink physical channel and/or the physical signal comprises: acquiring the configuration parameters by at least one of analyzing media access control (MAC) information of a downlink control channel, analyzing MAC information of high-layer signaling, analyzing MAC information of a downlink shared channel, or using a preset value.
12 . The method of claim 6 , wherein when the power adjustment level indicator is a maximum transmission power adjustment level indicator,
wherein the method further comprises: determining the transmission power according to an adjustment value δ corresponding to the maximum transmission power adjustment level indicator.
13 . A method for receiving uplink signal transmission performed by a base station, the method comprising:
receiving, from a terminal, parameters for signal transmission quality of an uplink signal in a specific modulation mode;
transmitting, to the terminal, configuration parameters of at least one of an uplink physical channel or a physical signal determined based on the received parameters for the signal transmission quality; and
receiving an uplink signal according to the configuration parameters of the uplink physical channel or the physical signal,
wherein the parameters for the signal transmission quality include a first quality parameter and a second quality parameter,
wherein the first quality parameter indicates a capability to transmit a signal that does not satisfy a preset signal transmission quality requirement in the specific modulation mode, and
wherein the second quality parameter comprises one or more signal transmission quality levels that the terminal supports.
14 . The method of claim 13 , wherein the specific modulation mode is at least one of 256 quadrature amplitude modulation (QAM), 1024 QAM, amplitude-phase keying modulation, or star-QAM.
15 . A terminal for an uplink signal transmission, the terminal comprising:
a transceiver; and
at least one processor configured to:
report, to a base station via the transceiver, parameters for signal transmission quality of an uplink signal in a specific modulation mode,
acquire, from the base station, configuration parameters of at least one of an uplink physical channel or a physical signal determined based on the reported parameters for the signal transmission quality, and
transmit, via the transceiver, an uplink signal according to the configuration parameters of the at least one of the uplink physical channel or the physical signal,
wherein the parameters for the signal transmission quality include a first quality parameter and a second quality parameter,
wherein the first quality parameter indicates a capability to transmit a signal that does not satisfy a preset signal transmission quality requirement in the specific modulation mode, and
wherein the second quality parameter comprises one or more signal transmission quality levels that the terminal supports.
16 . The terminal of claim 15 , wherein the specific modulation mode is at least one of 256 quadrature amplitude modulation (QAM), 1024 QAM, amplitude-phase keying modulation or star-QAM.
17 . A base station for receiving uplink signal transmission, the base station comprising:
a transceiver; and
at least one processor configured to:
receive, from a terminal via the transceiver, parameters for signal transmission quality of an uplink signal in a specific modulation mode,
transmit, to the terminal via the transceiver, configuration parameters of at least one of an uplink physical channel or a physical signal, the configuration parameters being related to the received parameters, and
receive, via the transceiver, an uplink signal according to the configuration parameters of the uplink physical channel or the physical signal,
wherein the parameters for the signal transmission quality include a first quality parameter and a second quality parameter,
wherein the first quality parameter indicates a capability to transmit a signal that does not satisfy a preset signal transmission quality requirement in the specific modulation mode, and
wherein the second quality parameter comprises one or more signal transmission quality levels that the terminal supports.
18 . The base station of claim 17 , wherein the specific modulation mode is at least one of 256 quadrature amplitude modulation (QAM), 1024 QAM, amplitude-phase keying modulation, or star-QAM.