Back to results
US 11,057,921 B2Granted
System and method for improving spectral efficiency and coverage for user equipments
AssigneeSamsung Electronics Co., Ltd.
InventorsAris Papasakellariou, Boon Loong Ng
Life of this patent
Estimating the term…
Abstract
Methods and apparatus are provided to improve spectral efficiency, coverage, and data rates for communication between a base station and user equipments (UEs). In a first case, mechanisms to reduce a size of a random access response message are provided. In a second case, mechanisms to support UE-group scheduling are provided. In a third case, control signaling designs according to a coverage requirement for a UE are provided. In a fourth case, designs for allocation of downlink (DL) subframes and uplink (UL) subframes in order to adjust a data rate and minimize switching between DL and UL for a half-duplex FDD UE are provided.
Claims13
A base station comprising:
- a processor configured to:
- generate a first random access response (RAR) message that includes a first transmission power control (TPC) command field having a first size;
- generate a second RAR message that includes a second TPC command field having a second size, wherein the second size is smaller than the first size;
- and
- a transceiver, operably connected to the processor, the transceiver configured to:
- transmit the first RAR message and the second RAR message;
- receive a first physical uplink shared channel (PUSCH) scheduled by the first RAR message, wherein:
- the first PUSCH is received within a maximum of one time unit, and
- a received power for the first PUSCH depends on a value of the first TPC command field;
- and
- receive a second PUSCH scheduled by the second RAR message, wherein:
- the second PUSCH is received within a maximum of more than one time units;
- and
- a received power for the second PUSCH depends on a value of the second TPC command field.
11 more elements
A base station comprising:
- an encoder configured to encode a first downlink control information (DCI) format that includes a redundancy version (RV) field of a first size and a second DCI format that includes a RV field of a second size, wherein the second size is smaller than the first size;
- and
- a transceiver, operably connected to the encoder, the transceiver configured to:
- transmit the first DCI format;
- and
- transmit the second DCI format,
- wherein:
- the first DCI format schedules a transmission of a first physical uplink shared channel (PUSCH) within a maximum of one time unit, and
- the second DCI format schedules a transmission of a second PUSCH within a maximum of more than one time units.
6 more elements
A user equipment (UE) comprising:
- a receiver configured to:
- receive information configuring reception of:
- a first downlink control information (DCI) format having a redundancy version (RV) field of a first size, or
- a second DCI format having a RV field of a second size, and
- receive the first DCI format or the second DCI format, wherein:
- the first DCI format schedules a reception of a first physical uplink shared channel (PUSCH) within a maximum of one time unit, and
- the second DCI format schedules a reception of a second PUSCH within a maximum of more than one time units, and
- the second size is smaller than the first size;
- and
- a decoder configured to decode the first DCI format or the second DCI format.
7 more elements
A method comprising:
- generating a first random access response (RAR) message that includes a first transmission power control (TPC) command field of a first size;
- generating a second RAR message that includes a second TPC command field of a second size wherein the second size is smaller than the first size;
- transmitting the first RAR message and the second RAR message;
- receiving a first physical uplink shared channel (PUSCH) scheduled by the first RAR message, wherein:
- the first PUSCH is received within a maximum of one time unit, and
- a received power for the first PUSCH depends on a value of the first TPC command field;
- and
- receiving a second PUSCH scheduled by the second RAR message, wherein:
- the second PUSCH is received within a maximum of more than one time units, and
- a received power for the second PUSCH depends on a value of the second TPC command field.
7 more elements
A method comprising:
- encoding a first downlink control information (DCI) format that includes a redundancy version (RV) field of a first size and a second DCI format that includes a RV field of a second size, wherein the second size is smaller than the first size;
- transmitting the first DCI format;
- and
- transmitting the second DCI format,
- wherein:
- the first DCI format schedules a transmission of a first physical uplink shared channel (PUSCH) within a maximum of one time unit, and
- the second DCI format schedules a transmission of a second PUSCH within a maximum of more than one time units.
4 more elements
Dependencies are inferred from the claim text.