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US 11,122,631 B2Granted
Link recovery in wireless communications
AssigneeZte Corporation
InventorsBo Gao, Yijian Chen, Shujuan Zhang, Zhaohua Lu
Life of this patent
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Abstract
A wireless communication method includes transmitting, by a first communication node, a first type of random access preamble, monitoring, by the first communication node, a link recovery confirmation information, performing, by the first communication node, after meeting a first type of condition, and the first type of condition includes detecting the link recovery confirmation information, an operation including performing a transmission on an outbound channel to a second communication node using a spatial filter determined by the first type of random access preamble.
Claims18
A wireless communication method, comprising:
- performing, by a user device, a random access preamble transmission to a network node;
- monitoring, by the user device, a downlink control information with a cyclic redundancy check (CRC) scrambled by a first type of radio network temporary identifier;
- and
- performing, by the user device after detecting the downlink control information with the CRC scrambled by the first type of radio network temporary identifier, a transmission on a channel using a same spatial filter as that for the random access preamble transmission, wherein a target power associated with the transmission on the channel is determined based on a specific index value indicating a target power in a target power set, and wherein a closed loop power control of the channel has the specific index value, the specific index value being equal to zero.
1 more element
A wireless communication method, comprising:
- receiving, by a network node, a random access preamble transmission from a user device;
- transmitting a downlink control information with cyclic redundancy check (CRC) scrambled by a first type of radio network temporary identifier to the user device;
- and
- receiving, by the network node in response to the downlink indictor with the CRC scrambled by the first type of radio network temporary identifier, a transmission on a channel using a same spatial filter as that for the random access preamble transmission, wherein a target power associated with the transmission on the channel is determined based on a specific index value indicating a target power in a target power set, and wherein a closed loop power control of the channel has the specific index value, the specific index value being equal to zero.
1 more element
An apparatus comprising:
- a processor, wherein the processor is configured to:
- perform a random access preamble transmission to a network node;
- monitor a downlink control information with a cyclic redundancy check (CRC) scrambled by a first type of radio network temporary identifier;
- and
- perform, after detecting the downlink control information with the cyclic redundancy check (CRC) scrambled by the first type of radio network temporary identifier, a transmission on a channel using a same spatial filter as that for the random access preamble transmission, wherein a target power associated with the transmission on the channel is determined based on a specific index value indicating a target power in a target power set, and wherein a closed loop power control of the channel has the specific index value, the specific index value being equal to zero.
2 more elements
An apparatus comprising:
- a processor, wherein the processor is configured to:
- receive a random access preamble transmission from a user device;
- transmit a downlink control information with cyclic redundancy check (CRC) scrambled by a first type of radio network temporary identifier to the user device;
- and
- receive, in response the downlink control information with the CRC scrambled by the first type of radio network temporary identifier, a transmission on a channel using a same spatial filter as that for the random access preamble transmission, wherein a target power associated with the transmission on the channel is determined based on a specific index value indicating a target power in a target power set, and wherein a closed loop power control of the channel has the specific index value, the specific index value being equal to zero.
2 more elements
Dependencies are inferred from the claim text.