US Patent No. 10,498,520


Patent No. 10,498,520
Issue Date December 03, 2019
Title Transmission Method And Apparatus In Tdd-fdd Joint System
Inventorship Fei Shi, Shanghai (CN)
Assignee Shanghai Langbo Communication Technology Company Limited, Shanghai (CN)

Claim of US Patent No. 10,498,520

1. A transmission method used in a User Equipment (UE) for a Time Division Duplex (TDD)-Frequency Division Duplex (FDD) joint system, comprising:Step A: receiving a first Downlink Control Information (DCI) on the subframe n on a first carrier, wherein the first carrier is an FDD downlink carrier, n is an integer, and the first DCI is the uplink-scheduling DCI; and
Step B: transmitting the uplink data on Physical Uplink Shared Channel (PUSCH) of a second carrier in the subframe n+k according to the scheduling of the first DCI, wherein the second carrier is a TDD carrier, k is the uplink scheduling delay of the uplink reference frame configuration of the second carrier on the subframe n;
wherein the first DCI includes two bits, being used as Uplink Index (ULI) only when the uplink reference frame configuration is configuration #0, while the first DCI does not include 2 bits being used as Downlink Assignment Index (DAI) when the uplink reference frame configuration is one of #0, #1, #2, #3, #4, #5, and #6.