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US 11,387,956 B2Granted
Signal transmission method, related apparatus, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsMao Yan, Huang Huang
Life of this patent
Estimating the term…
Abstract
This application discloses a signal transmission method. The method may include: obtaining, by a terminal, a first configuration parameter; determining, by the terminal based on the first configuration parameter from random access resources separately associated with a plurality of downlink signals, a random access resource used for random access preamble retransmission; and retransmitting, by the terminal, a random access preamble by using the random access resource used for random access preamble retransmission.
Claims22
A method, comprising:
- obtaining, by a terminal, a first configuration parameter for evaluating signal quality of one or more channel state information-reference signals (CSI-RSs);
- determining, by the terminal based on the first configuration parameter, a first time-frequency resource from a plurality of time-frequency resources for using the first time-frequency resource in random access preamble retransmission, the plurality of time-frequency resources associated with a plurality of CSI-RSs respectively;
- determining, by the terminal based on a switching condition, whether to switch from using a current time-frequency resource to using the first time-frequency resource in random access preamble retransmission, the current time-frequency being used by the terminal in random access preamble transmission;
- and
- retransmitting, by the terminal upon determining to switch to using the first time-frequency resource, a random access preamble using the first time-frequency resource determined for the random access preamble retransmission.
2 more elements
A method comprising:
- sending, by a network device to a terminal, a first configuration parameter for evaluation of signal quality of one or more channel state information-reference signals (CSI-RSs), wherein sending the first configuration parameter enables the terminal to determine, from a plurality of time-frequency resources associated with a plurality of CSI-RSs respectively, a time-frequency resource for use in random access preamble retransmission, and to determine, based on a switching condition, whether to switch from using a current time-frequency resource to using the determined time-frequency resource in random access preamble retransmission, the current time-frequency being used by the terminal in random access preamble transmission;
- and
- receiving, by the network device, a preamble transmitted by the terminal using a first time-frequency resource of the plurality of time-frequency resources.
A terminal comprising:
- a non-transitory memory storage comprising instructions;
- and
- one or more processors in communication with the memory storage, wherein the one or more processors execute the instructions to cause the terminal to:
- obtain a first configuration parameter for evaluating signal quality of one or more channel state information-reference signals (CSI-RSs);
- determine, based on the first configuration parameter, a first time-frequency resource from a plurality of time-frequency resources for using the first time-frequency resource in random access preamble retransmission, the plurality of time-frequency resources associated with a plurality of CSI-RSs respectively;
- determine, based on a switching condition, whether to switch from using a current time-frequency resource to using the first time-frequency resource in random access preamble retransmission, the current time-frequency being used by the terminal in random access preamble transmission;
- and
- retransmit, upon determining to switch to using the first time-frequency resource, a random access preamble using the first time-frequency resource determined for the random access preamble retransmission.
5 more elements
A network device comprising:
- a non-transitory memory storage comprising instructions;
- and
- one or more processors in communication with the memory storage, wherein the one or more processors execute the instructions to cause the network device to:
- send, to a terminal, a first configuration parameter for evaluation of signal quality of one or more channel state information-reference signals (CSI-RSs), wherein the first configuration parameter enables the terminal to determine, from a plurality of time-frequency resources associated with a plurality of CSI-RSs respectively, a time-frequency resource use in random access preamble retransmission, and to determine, based on a switching condition, whether to switch from using a current time-frequency resource to using the determined time-frequency resource in random access preamble retransmission, the current time-frequency being used by the terminal in random access preamble transmission;
- and
- receive a preamble transmitted by the terminal using a first time-frequency resource of the plurality of time-frequency resources.
3 more elements
Dependencies are inferred from the claim text.