| 发明名称 |
FRAME FORMAT IN COMMUNICATIONS |
| 摘要 |
A method for selecting a frame format in a communications system is disclosed. A network apparatus (AP) predefines a TDD data frame structure such that a TDD frame has a predefined frame duration defining an uplink-downlink switching point periodicity. The frame duration defines a maximum time in which a half-duplex apparatus performs a cycle transmit-receive-transmit and/or a cycle receive-transmit-receive. An uplink-downlink ratio is adjustable on a symbol level in the TDD frame. The TDD frame is partitioned into one or more of a guard period, a downlink portion and an uplink portion. |
| 申请公布号 |
US2015103702(A1) |
申请公布日期 |
2015.04.16 |
| 申请号 |
US201214389606 |
申请日期 |
2012.04.03 |
| 申请人 |
Lahetkangas Eeva;Tiirola Esa Tapani;Pajukoski Kari Pekka |
发明人 |
Lahetkangas Eeva;Tiirola Esa Tapani;Pajukoski Kari Pekka |
| 分类号 |
H04L5/16;H04L5/14 |
主分类号 |
H04L5/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for selecting a frame format in a communications system, the method comprising:
predefining, in a communications apparatus, a TDD data frame structure such that a TDD frame has a predefined frame duration defining a link direction 1-link direction 2 switching point periodicity, the frame duration defining a maximum time in which a half-duplex apparatus performs a cycle transmit-receive-transmit and/or a cycle receive-transmit-receive, wherein a link direction 1-link direction 2 ratio is adjustable on a symbol level in the TDD frame, wherein the TDD frame is partitioned into one or more of a guard period, a link direction 2 portion and a link direction 1 portion. |
| 地址 |
Oulu FI |
