US 8,687,541 B2 · Logical channel prioritization procedure for generating multiple uplink transport blocks

Abstract

The invention relates to methods for scheduling of uplink transmission and generating transport blocks according to multiple received uplink assignments Furthermore, the invention is also related to the implementation of these methods in hardware and software. To propose strategies for generating plural transport blocks within a given time constraint, the invention introduces prioritization of the uplink assignments, so that multiple uplink assignments can be ranked in the mobile terminal in a priority order. The prioritization of the uplink assignments is used to determine the order in which the individual transport blocks corresponding to the uplink assignments are filled, respectively how the data of different logical channels is multiplexed to the transport blocks for transmission in the uplink. Another aspect of the invention is to suggest joint logical channel procedures that operate on virtual transport blocks accumulated from the received uplink assignments. One or more such joint logical channel procedure can be performed in parallel.

Claims17

Dependent claims

A method for controlling transmit powers for transmissions of transport blocks on uplink component carriers of a mobile communication system in a power limited situation, the method comprising the following steps performed by a mobile terminal:

receiving uplink resource assignments that schedule transmissions of the transport blocks on the uplink component carriers within a transmission time interval, wherein the uplink resource assignments have a priority order,
determining for each transmission of a respective one of the transport blocks, a transmit power required for transmitting the respective transport block according to its corresponding uplink resource assignment,
reducing the determined transmit power for each transmission of a respective one of the transport blocks according to the priority of the transport block given by the priority orders, wherein the lower the priority of an uplink resource assignment, the larger the power reduction applied to the transmit power for the transmission of the transport block required by its corresponding uplink resource assignment, and the higher the priority of an uplink resource assignment, the smaller the power reduction applied to the transmit power for the transmission of the transport block required by its corresponding uplink resource assignment, and
transmitting the transport blocks on the uplink component carriers within the transmission time interval, wherein each transport block is transmitted using the reduced transmit power.

1 more element

A mobile terminal for controlling transmit powers of transmissions of transport blocks on uplink component carriers of a mobile communication system in a power limited situation, the mobile terminal comprising:

a receiver for receiving uplink resource assignments that schedule transmissions of the transport blocks on the uplink component carriers within a transmission time interval, wherein the uplink resource assignments have a priority order,
a processor for determining for each transmission of a respective one of the transport blocks, a transmit power required for transmitting the respective transport block according to its corresponding uplink resource assignment,
a power controller for reducing the determined transmit power for each transmission of a respective one of the transport blocks according to the priority of the transport block given by the priority order, wherein the power controller is adapted to reduce the required transmit power for each transmission of a respective one of the transport blocks inversely proportional to the priority of the resource assignment of a respective transport block as given by the priority order, and
a transmitter for transmitting the transport blocks on the uplink component carriers within the transmission time interval, wherein each transport block is transmitted using the reduced transmit power.

1 more element

Dependencies are inferred from the claim text.

Logical channel prioritization procedure for generating multiple uplink transport blocks

Life of this patent

Logical channel prioritization procedure for generating multiple uplink transport blocks

Life of this patent

Abstract

Claims17