Sounding reference signal arrangement

摘要

A method, apparatus, and computer program embodied on a computer-readable medium to create an uplink message to be transmitted to a base station, the created uplink message comprises a sounding reference signal based on accessed data. An uplink scheduling grant signal is received via downlink, from the base station, in response to the transmission of the uplink message. An uplink data transmission is transmitted to the base station responsive to the received uplink scheduling grant signal.

主权项

1. A method, comprising:
storing data related to reference signal sequences, to form a desired cyclic shift separation between reference signal sequences, and to support a tree-based bandwidth assignment, the data being received from a user interface or from a base station; creating an uplink message to be transmitted to the base station, the created uplink message comprises a sounding reference signal based on the stored data; receiving uplink scheduling grant signal via downlink from the base station in response to the transmission of the uplink message; transmitting to the base station uplink data transmission responsive to the received uplink scheduling grant signal; forming the sounding reference signal based on existing demodulation reference signals; selecting the sounding reference signal to support the tree-based bandwidth assignment; adapting the sounding reference signal to provide maximum cyclic shift separation; reserving sufficient bandwidth at least for physical uplink control channel when forming the sounding reference signal based on existing demodulation reference signal signals; selecting a bandwidth allocation based on discrete Fourier transforms and repetition factor sizes when forming the sounding reference signal based on existing demodulation reference signal signals; and configuring the maximum cyclic shift separation between eight cyclic shifts to result in a sounding reference signal sequence length divisible by eight when a bandwidth of the sounding reference signal is a multiple of four resource blocks.