Transmission of first and second buffer status information messages in a wireless network
AssigneeInterDigital Technology Corporation
InventorGuodong Zhang
Life of this patent
Estimating the term…
Abstract
A wireless transmit/receive unit (WTRU) transmits a first buffer status information message over an uplink shared channel with buffered data and a second buffer status information message over the uplink shared channel with buffered data. The second buffer status information message may have less bits and use a different format than the first buffer status information message. The WTRU may also transmit a scheduling request without buffered data on a condition of not have a scheduling grant. The WTRU may initiate, subsequent to a predetermined number of subframes after transmission of the first buffer status information message, transmission of another first buffer status information message.
Claims18
A method performed by a wireless transmit/receive unit (WTRU), the method comprising:
- transmitting, by the WTRU, power headroom information;
- transmitting, by the WTRU, a first buffer status information message over an uplink shared channel with buffered data, wherein the first buffer status information message indicates an amount of data buffered;
- transmitting, by the WTRU, a second buffer status information message over the uplink shared channel with buffered data, wherein the second buffer status information message has less bits and is a different format than the first buffer status information message;
- transmitting, by the WTRU on a condition that the WTRU does not have a scheduling grant and is time synchronized with a network, a scheduling request without buffered data;
- and
- initiating, by the WTRU subsequent to a predetermined number of subframes after transmission of the first buffer status information message, transmission of another first buffer status information message.
A wireless transmit/receive unit (WTRU) comprising:
- a transmitter configured to transmit power headroom information;
- the transmitter further configured to transmit a first buffer status information message over an uplink shared channel with buffered data, wherein the first buffer status information message indicates an amount of data buffered;
- the transmitter is further configured to transmit a second buffer status information message over the uplink shared channel with buffered data, wherein the second buffer status information message has less bits and is a different format than the first buffer status information message;
- the transmitter further configured to transmit, on a condition that the WTRU does not have a scheduling grant and is time synchronized with a network, a scheduling request without buffered data;
- and a processor configured to initiate, subsequent to a predetermined number of subframes after transmission of the first buffer status information message, transmission of another first buffer status information message.
Dependencies are inferred from the claim text.