Allocation and logical to physical mapping of scheduling request indicator channel in wireless networks

摘要

A method for allocating resources for a scheduling request indicator (SRI) is disclosed. An SRI cycle period for use by user equipment (UE) within a cell is transmitted from a NodeB in a cell to UE within the cell. The NodeB transmits a specific SRI subframe offset and an index value to the particular UE within the cell. The specific SRI subframe offset and the index value enable the UE to determine a unique combination of cyclic shift, RS orthogonal cover, data orthogonal cover, and resource block number for the UE to use as a unique physical resource for an SRI in the physical uplink control channel (PUCCH).

主权项

1. A method for sending a scheduling request indicator (SRI) by a user equipment (UE), comprising:
receiving an index value n; determining an SRI cycle period; determining a SRI subframe offset; determining a unique combination of cyclic shift, reference signal (RS) orthogonal cover, data orthogonal cover, and resource block number to use as a unique physical resource for the SRI in a physical uplink control channel (PUCCH) according to the index value n; and transmitting the SRI at a next assigned transmission opportunity after the UE determines that it needs to transmit data or information; wherein the next assigned SRI transmission opportunity is based upon the SRI cycle period and the SRI subframe offset.