Method for determining transmit power in coverage enhancement scenario and device
First Claim
1. A terminal, comprising:
- a transceiver, configured to obtain configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and
a processor, configured to determine, according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal;
wherein when the configuration information comprises a quantity of repetition times required for the signal to be transmitted at each coverage enhancement level, the processor is configured to;
according to the quantity of repetition times comprised in the configuration information, determine a quantity of repetition times required for the signal to be transmitted at the coverage enhancement level currently used by the terminal; and
according to the determined quantity of repetition times, determine the transmit power used for transmitting the signal at the coverage enhancement level currently used by the terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for determining a transmit power in a coverage enhancement scenario and a device resolve a problem that the prior art lacks a solution to determining a transmit power of a preamble sequence in a random access process in the coverage enhancement scenario. The method includes: obtaining, by a terminal, configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and determining, by the terminal according to the obtained configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal, so as to determine the transmit power used for transmitting the signal in the coverage enhancement scenario.
-
Citations
14 Claims
-
1. A terminal, comprising:
-
a transceiver, configured to obtain configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and a processor, configured to determine, according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal; wherein when the configuration information comprises a quantity of repetition times required for the signal to be transmitted at each coverage enhancement level, the processor is configured to; according to the quantity of repetition times comprised in the configuration information, determine a quantity of repetition times required for the signal to be transmitted at the coverage enhancement level currently used by the terminal; and according to the determined quantity of repetition times, determine the transmit power used for transmitting the signal at the coverage enhancement level currently used by the terminal. - View Dependent Claims (2, 3)
-
-
4. A terminal, comprising:
-
a transceiver, configured to obtain configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and a processor, configured to determine, according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal; wherein the processor is configured to determine, according to the following formula, the transmit power used for transmitting the signal at the coverage enhancement level currently used by the terminal;
P=min {PMAX,PREAMBLE_RECEIVED_TARGET_POWER_CI+PL},wherein P is the transmit power of transmitting the signal by the terminal, PMAX is a maximum transmit power of the terminal, PREAMBLE_RECEIVED_TARGET_POWER_CI is a target received power determined according to the power compensation value corresponding to the coverage enhancement level currently used by the terminal, and PL is a path loss. - View Dependent Claims (5)
-
-
6. A terminal, comprising:
-
a transceiver, configured to obtain configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and a processor, configured to determine, according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal; wherein the processor is configured to; when the configuration information carries a maximum quantity of signal transmitting attempts corresponding to each coverage enhancement level, determine, from the configuration information, a maximum quantity of signal transmitting attempts at the coverage enhancement level currently used by the terminal;
orwhen the configuration information carries a total of maximum quantities of signal transmitting attempts corresponding to all the coverage enhancement levels, determine a maximum quantity of signal transmitting attempts at each coverage enhancement level according to the total of quantities of attempts carried in the configuration information, and determine, according to the coverage enhancement level currently used by the terminal, a maximum quantity of signal transmitting attempts at the coverage enhancement level currently used by the terminal.
-
-
7. A network-side device, comprising:
-
a processor, configured to configure configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and a transceiver, configured to transmit the configuration information to a terminal served by the network-side device, so that the terminal determines, according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal; wherein the configuration information comprises at least one of the following information; a power compensation value corresponding to each coverage enhancement level; a quantity of repetition times required for the signal to be transmitted at each coverage enhancement level; a maximum quantity of signal transmitting attempts at each coverage enhancement level; a total of maximum quantities of signal transmitting attempts at all the coverage enhancement levels; a power ramping step in each signal transmitting attempt corresponding to each coverage enhancement level;
ora total of power ramping steps after the signal is transmitted repeatedly for N times in each attempt corresponding to each coverage enhancement level.
-
-
8. A method for determining a transmit power in a coverage enhancement scenario, the method comprising:
-
obtaining, by a terminal, configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and determining, by the terminal according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal; wherein when the configuration information comprises a quantity of repetition times required for the signal to be transmitted at each coverage enhancement level, determining, by the terminal according to the configuration information, the transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal comprises; determining, by the terminal according to the quantity of repetition times comprised in the configuration information, a quantity of repetition times required by the signal to be transmitted at the coverage enhancement level currently used by the terminal; and determining, by the terminal according to the determined quantity of repetition times, the transmit power used for transmitting the signal at the coverage enhancement level currently used by the terminal. - View Dependent Claims (9, 10)
-
-
11. A method for determining a transmit power in a coverage enhancement scenario, the method comprising:
-
obtaining, by a terminal, configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and determining, by the terminal according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal; wherein determining the transmit power comprises; determining, according to the following formula, the transmit power used for transmitting the signal at the coverage enhancement level currently used by the terminal;
P=min{PMAX,PREAMBLE_RECEIVED_TARGET_POWER_CI+PL},wherein P is the transmit power of transmitting the signal by the terminal, PMAX is a maximum transmit power of the terminal, PREAMBLE_RECEIVED_TARGET_POWER_CI is a target received power determined by the terminal according to the power compensation value corresponding to the coverage enhancement level currently used by the terminal, and PL is a path loss. - View Dependent Claims (12)
-
-
13. A method for determining a transmit power in a coverage enhancement scenario, the method comprising:
-
obtaining, by a terminal, configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and determining, by the terminal according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal; wherein determining, by the terminal, the quantity of signal transmitting attempts at the coverage enhancement level currently used by the terminal comprises; when the configuration information carries a maximum quantity of signal transmitting attempts corresponding to each coverage enhancement level, determining, by the terminal from the configuration information, a maximum quantity of signal transmitting attempts at the coverage enhancement level currently used by the terminal;
orwhen the configuration information carries a total of maximum quantities of signal transmitting attempts corresponding to all the coverage enhancement levels, determining, by the terminal, a maximum quantity of signal transmitting attempts at each coverage enhancement level of the terminal according to the total of quantities of attempts carried in the configuration information, and determining, according to the coverage enhancement level currently used by the terminal, a maximum quantity of signal transmitting attempts at the coverage enhancement level currently used by the terminal.
-
-
14. A method for determining a transmit power in a coverage enhancement scenario, the method comprising:
-
configuring, by a network side, configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and transmitting, by the network side, the configuration information to a terminal served by the network side, so that the terminal determines, according to the configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal; wherein the configuration information comprises at least one of the following information; a power compensation value corresponding to each coverage enhancement level; a quantity of repetition times required for the signal to be transmitted at each coverage enhancement level; a maximum quantity of signal transmitting attempts at each coverage enhancement level; a total of maximum quantities of signal transmitting attempts at all the coverage enhancement levels; a power ramping step in each signal transmitting attempt corresponding to each coverage enhancement level;
ora total of power ramping steps after the signal is transmitted repeatedly for N times in each attempt corresponding to each coverage enhancement level.
-
Specification