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1.发明公开
公开(公告)号：EP3913996A1
公开(公告)日：2021-11-24
申请号：EP21172823.3
申请日：2021-05-07
摘要： A method of enabling communication between a user equipment, UE, (101) and a non-terrestrial network, NTN, (100) is described. The UE (101) may be able to calculate a timing advance. The timing advance may be a differential or full timing advance. An offset value, K offset , may be indicated to the UE (101). The K offset may be used for timing relationships.
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公开(公告)号：EP4060919A1
公开(公告)日：2022-09-21
申请号：EP22160424.2
申请日：2022-03-07
IPC分类号： H04L1/18
摘要： A system and method for managing downlink data transmissions with HARQ feedback disabled. In some embodiments, the method includes: receiving, by a User Equipment (UE), a downlink data transmission with Hybrid Automatic Repeat reQuest (HARQ) feedback disabled; and multiplexing, by the UE, a plurality of HARQacknowledgment (HARQ-ACK) information bits to form a HARQ-ACK codebook, wherein the multiplexing of the HARQ-ACK information bits does not include multiplexing a HARQ-ACK information bit for the downlink data transmission in the HARQ-ACK codebook.
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公开(公告)号：EP3944517A1
公开(公告)日：2022-01-26
申请号：EP21186026.7
申请日：2021-07-16
摘要： A system and method for random access procedures in a non-terrestrial network. In some embodiments, the method includes calculating (605), by a user equipment, UE, a timing advance based on location information of the UE and on an ephemeris of a non-terrestrial network node. The method may further include randomly selecting (610) a random value from a plurality of values, and sending (615), at a transmission time, by the UE, to the non-terrestrial network node, a random access, RA, message, which may include a signature. The transmission time may differ from a nominal transmission time by an amount based on the random value, the nominal transmission time being based on the timing advance, or the signature may differ from a nominal signature by a cyclic shift based on the random value.
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