Communication support for low capability devices
AssigneeSamsung Electronics Co., Ltd.
InventorsAris PAPASAKELLARIOU, Hyoung-Ju JI, Young-Bum KIM
Life of this patent
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Abstract
Methods and apparatuses for transmitting and receiving signaling, by a User Equipment (UE) with reduced processing capabilities, to conserve power are provided. A method for transmitting from a network a Physical Downlink Shared CHannel (PDSCH) to a first User Equipment (UE) from a first class of UEs or to a second UE from a second class of UEs, includes transmitting a PDSCH to the first UE using a first bandwidth unit; and transmitting a PDSCH to the second UE using a second bandwidth unit, wherein the second bandwidth unit is smaller than the first bandwidth unit.
Claims17
A method for receiving, by a network, a channel quality indicator from at least one of a first User Equipment (UE) from a first class of UEs and a second UE from a second class of UEs, the method comprising:
- transmitting, by the first UE using a first total number of binary elements, a first channel quality indicator having a value from a first set of values;
- transmitting, by the second UE using a second total number of binary elements, a second channel quality indicator having a value from a second set of values, wherein the second set of values is a subset of the first set of values, and wherein second total number of binary elements is less than the first total number of binary elements;
- and
- receiving, by the network, the first channel quality indicator and the second channel quality indicator.
A method for transmitting from a network a Physical Downlink Shared CHannel (PDSCH) to a first User Equipment (UE) from a first class of UEs or to a second UE from a second class of UEs, the method comprising the steps of:
- transmitting a PDSCH to the first UE using a first bandwidth unit;
- and
- transmitting a PDSCH to the second UE using a second bandwidth unit,
- wherein the second bandwidth unit is smaller than the first bandwidth unit.
A method for receiving at a User Equipment (UE) a Scheduling Assignment (SA) from a network, the method comprising:
- receiving, by the UE, a bit-map having a number X of bits, the bit-map transmitted to the UE from the network and its elements have a one-to-one correspondence with X Transmission Time Intervals (TTIs), wherein an element with a first binary value indicates that the network may transmit a SA to the UE in the respective TTI and an element with a second binary value indicates that the network may not transmit a SA to the UE in the respective TTI;
- decoding, by the UE, candidate SAs in a TTI associated with the first binary value to detect whether the network transmits a SA;
- and
- suspending, by the UE, decoding for candidate SAs in a TTI associated with the second binary value.
A User Equipment (UE) apparatus for receiving a Physical Downlink Shared CHannel (PDSCH), the apparatus comprising:
- a receiver for receiving a reference signal over a first bandwidth unit and for receiving a data signal over a second bandwidth unit wherein the second bandwidth resource unit is smaller than the first bandwidth unit;
- and
- a demodulator for demodulating the data signal using the reference signal.
A User Equipment (UE) apparatus for receiving a Scheduling Assignment (SA) from a network, the apparatus comprising:
- a receiver for receiving a bit-map having a number X of bits transmitted from the network, the bit-map elements having a one-to-one correspondence with X Transmission Time Intervals (TTIs), wherein an element with a first binary value indicates that the network may transmit a SA to the UE apparatus in the respective TTI and an element with a second binary value indicates that the network may not transmit a SA to the UE apparatus in the respective TTI;
- a decoder for decoding candidate SAs in a TTI associated with the first binary value to detect whether the network transmits a SA;
- and
- a decoder suspending unit for suspending decoding for candidate SAs in a TTI associated with the second binary value.
A method for receiving by a network a Physical Uplink Shared CHannel (PUSCH) from a first User Equipment (UE) or from a second UE, the method comprising:
- receiving a PUSCH from the first UE using a first bandwidth unit;
- and
- receiving a PUSCH from the second UE using a second bandwidth unit,
- wherein the second bandwidth unit is less than the first bandwidth unit.
Dependencies are inferred from the claim text.